HEAT EXCHANGER AND NUCLEAR POWER PLANT HAVING SAME
The present invention refers to printed circuit board type (printed circuit) or plate (plate type) heat exchanger (heat exchanger) and to nuclear having the same are disclosed. Printed circuit board type (printed circuit) heat exchanger technology British Heatric yarn (American patent gazette US4665975, 1987. 05. 19. Notification) have been developed and used in general industry wide variety etc. to the field. Printed circuit board type heat exchanger by photochemical etching techniques (Photo-a chemical etching technique) dense flow path arrangement and diffusion bonding technique of welding between the front heat exchanger to the heat exchanger plate are disclosed. The, printed circuit board type heat exchanger applicable to high temperature and high pressure environment, etc. with high equator and excellent heat exchanging performance. Printed circuit board type heat exchanger excellent durability against high temperature and high pressure environment of heat exchanging performance and the higher packing density and compact cooling and heating system, fuel cell, vehicle, chemical process, medical devices, nuclear, information communication equipment, such as prevent liquid nitrogen evaporator, condenser, cooler, radiator, heat exchanger, thermal reactor or ms etc. applied external appearance. On the other hand, plate (plate type) exceed 100 years electricity etc. extensively at heat exchanger applications. Recovery generally plate by extruding passage forming a channel, a general welding or brazing or using a gasket sheet using coupled through an aperture. The, printed circuit board type heat exchanger and industrial field of application is more low pressure environment at a pressure but used for disclosed. Performance of a heat exchanger plate printed substrate type heat exchanger is smaller than shell (shell and tube) type heat exchanger than vinyl&tube 2000. In addition, easy-small number-shaped printed circuit board compared enterocin hj35. The beginning middle 2000's from plate heat exchanger or a mixed to obtain an enough FPHE making bending FP (Formed Plate) such as on technology off and placed around the diffusion bonding, etc. in addition to metal field 3D printer technique applied is magnified. Without special referred to, in the present invention is a multi-plate heat exchanger, as well as diffusion by bonding printed board type heat exchanger 3D print, plate, the plate (plate) method for processing mixed heat exchanger or welding, bonding method also refer to general assembly if there is a difference. In addition without special referred to, in the present invention heat exchanger is supplied by the first heat exchanger as well as steam generator such as a multi-special purpose heat exchanger are both refer to a storage device. Plate heat exchanger of the existing method however is in the context of an ideal flow (two a-phase flow) it became grudge been number used in evaporator operation condition range. Different types of heat exchanger relative to the glass plate heat exchanger shell&tube (shell and tube) very good transfer efficiency in spite steam generator widely used higher flow path channel in flow anxiety door number was the reason. Hereinafter, a plurality of channel number 1 on the plate heat exchanger of the existing method in reference also to flow anxiety door 3 through a browser S. also. Figure 1 shows a plate heat exchanger of the existing method also (10) transfer heat from fluid in receiving fluid flow number 2 number 1 number 2 plate (12) on a passage structure of (d1, 12a), steam generator heat transmitted to the liquid gas (vapor) changes over a number 2 number 2 plate having fluid 5.10 orifice (d2, d3, d4) (12) (d2, d3, d4, 12a) general outline degrees and indicating a passage structure of, Figure 2 of the existing method plate heat exchanger (10) fluid in heat transfer fluid flow number 1 number 2 number 1 plate (11) and a passage structure of indicating the general outline degrees, Figure 3 of the existing method plate type vapor generator (20) heat transmitted to the liquid gas (steam) fluid intake portion changes over a number 2 5.10 (24) with number 2 plate (22) indicating a passage structure of general outline are disclosed. The reference also 1 and 2 also, number 1 plate (11) number 1 formed flow channels (11a) passes through fluid along number 1 number 2 plate (12) of the heat transferred. Heat transferred is number 2 passage channels (12a) or number 2 heating fluid flowing along, or vapor generator gas (vapor) when used thereby as the substrate. The, generally flow channel (flow channel) is composed simply of the existing method in abnormal flow (two a-phase flow) steam generator plate heat exchanger flow path (of Figure 1 d1) when vapor is formed which uses a density wave flow channel direction towards the front and applying propagated to anxiety and surrounds the relationship. Single phase region flowing pharmaceutical composition comprising amplifying phase difference feedback pressure drops and the surrounding each other's oldest. In particular in the case of a steam generator which consists of a plurality of common header passage connected to a passage phenomenon as having developed into steam generator flow of time difference between channels as causes anxiety (parallel channel oscillation). The purpose of starting or other steam generator the phenomenon that output operation mode operation range is required in particular in the case of widely important door number is under or over. These flow anxiety detector generally be wide operation range shell&tube type vapor generator, in particular a flow passage in fluid communication with the secondary tube mode switch is used tube inlet section coating the orifice are installed in (a compensation SMART reactor). However, as shown in fig. 1, simply reducing the cross sectional area of the existing method (of Figure 1 d2 to d4) techniques can body having a passage contamination (fouling) door number, thereby requiring a long life such as nuclear environment (long life time) the T1 number one environment can be disclosed. In the first period of time while said passage contamination (fouling) steam generator operation various impurities accumulated water flow path cross-sectional area or narrowed by the outer pipe and which affects the developing means, steam generator inlet flow cross-sectional area smaller phenomenon can be liquid. On the other hand, as shown in also 3, plate type vapor generator (20) of number 2 plate (22) is formed on the inlet section passage channels formed in delivery department regasification of number 2 (22a) are composed with a width less than the width of the channel close intake portion (24) number [...] operation corrosion disclosed. In addition, said number 2 plate (20) is lower portion of number 2 passage channels (22a) of the fluid flowing through the inlet header number 2 (23a) outlet header (23b) can be formed. In addition, plate type vapor generator (20) in single fluid (water) enters the fluid delivery zone of regasification of number 2 by heat transfer temperature is raised and the, temperature locally by heat transfer by the saturation temperature of the vaporized fluid transition and beyond while hereinafter more gradually, most of overheating the fluid (steam) is vaporized by heat transfer fluid (water) transitions from the other. Herewith, each delivery area number 2 period of time while said regasification heat transfer areas include different fluid in addition heat transfer coefficient large show differences in substrate. In particular, number 2 plate (20) the gas (vapor) heat transfer fluid acts as an overheating of the fluid zone is therefore reduces the heat transfer regions where gases of low density. However, plate type vapor generator of the existing method (20) of number 2 plate (22) is shown in different heat transfer properties and said regasification of delivery area per unit charge pump approximately the same heat transfer area of the fluid flow channels etc. number 2. One object of the present invention the, delivery zone heat transfer properties and a change of a fluid flowing regasification of each other along the other channel structure having the same number used for heat exchange and a nuclear [...] 2000. The number of the present invention in order to achieve a polyethyleneglycol mono, heat exchanger of the present invention, fluid flow number 1 number 1 passage; and said number 1 heat exchange relation with the liquid and gas fluid flow passage number 2 and number 2 changes, said number 2 passage, said number 2 with a predetermined length from said number 2 number 1 flow channel having a plurality of passage for fluid flow therethrough, fluid flowing liquid state said number 2 single phase regions; said single-phase regions said number 2 through number 2 having a plurality of flow channel for fluid flow therethrough, fluid flowing into said number 2 gas above zero liquid mixed state inverse; and said flow channel having a plurality of number 3 through the inverse above zero fluid flow said number 2, said number 2 programmed fluid from flowing to the gaseous part wherein, said number 1 and number 2 to vary the size of the passage, at least one of said number 1 to number 3 the shape of the oil passage channel, said single-phase regions, said inverse above zero, as based on said number 2 each programmed in said fluid of different heat transfer coefficient is different from each other characterized in that disclosure formed heat exchanger has heat transfer area of the substrate. Said coefficient of heat transfer from said inverse above zero size, said single-phase regions, said programmed order part decreases, said number 1 and number 2 to reduce a size of a passage, said number 1 to number 3 the shape of the flow passage at least one of the larger heat transfer area of said heat transfer coefficient can be formed. The shape of the flow passage channel flow greater than said number 1 and number 2 said number 3 flow channel shape can be configured to have a heat transfer area. At least one of the plurality of said number 1 to number 3 are interconnected with each other to form a flow channel to the outlet channel on said number 1 number 3 closes the flow channel adjacent said number 2 between the movement of the fluid toward the front side can be positioned and disclosed. A plurality of said number 1 to number 3 said number 1 to number 3 on at least one of the flow channel adjacent the outlet channel closes the flow channel between the movement of the fluid cannot be closed to said number 2 can be configured in the form. Said number 1 to number 3 in the direction of travel of the fluid flow channel while said number 2 cause a change in at least one of the flow path resistances are streamlined flow passage can be further. Said number 1 to number 3 in the direction of travel of the fluid flow channel to cause a change in at least one of the flow paths of said number 2 patients curve or form can be further. Said number 1 and number 2 to reduce a size of a passage, the shape of the flow passage channel coefficient of heat transfer from said flow channel said number 1 said number 1 said number 2 fluids can be formed based on a variation of the tube area increases progressively. Said number 1 and number 2 to reduce a size of a passage, said number 2 the shape of the flow passage channel said number 2 based on a variation coefficient of heat transfer from said flow channel said number 2 fluids decreases progressively increasing again in the tube area can be formed. Said number 1 and number 2 to reduce a size of a passage, said passage channel coefficient of heat transfer from said number 3 the shape of the flow passage channel said number 3 said number 2 fluids can be formed based on a variation of the tube area increases progressively. Said number 2 the inlet passage being disposed in said fluid flow resistance in the inlet section configured to cause said number 2 intake channel having a plurality of intake can be further comprises an interlocking feature. Said intake channel electrically connected to the first flow path to said intake channel in mitigating contamination, said number of said number 1 the number of intake flow channel can be configured. The cleaning flow channel said number 1 to number 3 (plate type) or printing substrate-like (printed circuit type) can be formed. Said number 1 fluid or said number 2 or heat transfer area so as to increase the cross sectional area of the fluid, at least one of the passage and said number 2 can be composed of a plurality of passage said number 1. Said number 1 normal to monitor a passage passage or said number 2, passage and passage formed between said number 2 having a plurality of fine monitoring placed around said number 1, said number 1 fluid path inlet or that the fluid or said number 2 said fluid passage or said number 2 fine monitoring at euro fine monitoring said number 1 being interposed between the upper passage further includes a monitor can be configured to detect whether euro department. The present invention refers to so, fluid flow number 1 number 1 passage; and said number 1 heat exchange relation with the liquid and gas fluid flow passage number 2 and number 2 changes, said number 2 passage, said number 2 with a predetermined length from said number 2 passage fluid flowing liquid state a single phase regions; said single-phase regions said number 2 through liquid mixed state inverse above zero fluid gas from flowing to the; and said gaseous fluid flowing into said number 2 inverse above zero through programmed part wherein, said number 1 and number 2 to vary the size of the passage, said single-phase regions, said inverse above zero, said at least one of the programmed part the shape of the flow path, said single-phase regions, said inverse above zero, said number 2 appearing in said each programmed based on different heat transfer area of fluid of different heat transfer coefficient formed heat exchanger has characterized disclosure as follows. In addition the present invention refers to, fluid flow number 1 number 1 passage; and said number 1 into steam in heat exchange relation with the liquid and varying fluid flow passage number 2 and number 2, said number 2 passage, said number 2 with a predetermined length from said number 2 number 1 flow channel having a plurality of passage for fluid flow therethrough, fluid flowing liquid state said number 2 single phase regions; said fluid flow through said number 2 single-phase regions having a plurality of number 2 flow channel, said number 2 liquid and steam is mixed with fluid from flowing to the state inverse above zero; and said flow channel having a plurality of number 3 through the inverse above zero fluid flow said number 2, said number 2 including a programmed fluid from flowing to the vapor state, said number 1 and number 2 to vary the size of the passage, at least one of said number 1 to number 3 the shape of the flow channel, said single-phase regions, said inverse above zero, said number 2 appearing in said each programmed based on different heat transfer area of fluid of different heat transfer coefficient formed a steam generator characterized in that disclosure as follows. The present invention refers to so, fluid flow number 1 number 1 passage; and said number 1 into steam in heat exchange relation with the liquid and varying fluid flow passage number 2 and number 2, said number 2 passage, said number 2 with a predetermined length from said number 2 passage fluid flowing liquid state a single phase regions; said single-phase regions said number 2 through liquid and steam mixed with inverse above zero fluid from flowing to the state; and said fluid flowing through said number 2 programmed inverse above zero in vapour form part wherein, said number 1 and number 2 to vary the size of the passage, said single-phase regions, said inverse above zero, said at least one of the programmed part the shape of the flow path, said single-phase regions, said inverse above zero, said number 2 appearing in said each programmed based on different heat transfer area of fluid of different heat transfer coefficient formed a steam generator characterized in that disclosure as follows. In addition the present invention refers to, number 1 to evaluating cleanliness of metal which is heated by a fluid, the heat exchange fluid circulating fluid heat exchanger to create the number 1 number 2 in nuclear including vapor, said heat exchanger, said number 1 number 1 fluid flow passage; and fluid flow passage and said number 2 number 2, said number 2 passage, said number 2 with a predetermined length from a plurality of number 1 flow channel having a fluid flow passage said number 2, said number 2 fluid flowing liquid state a single phase regions; said fluid flow through said number 2 single-phase regions having a plurality of number 2 passage channel, said number 2 gas liquid mixed state fluid flowing into inverse above zero; and said flow channel having a plurality of number 3 through the inverse above zero fluid flow said number 2, said number 2 programmed fluid from flowing to the gaseous part wherein, said number 1 and number 2 also varying the passage, said number 1 to number 3 at least one of the shape of the flow channel, said single-phase regions, said inverse above zero, as based on said number 2 each programmed in said fluid of different heat transfer coefficient is different from each other forming a heat transfer area of a nuclear characterized disclosure as follows. According to the present invention, heat exchange relation with the liquid and gas fluid flow number 2 number 1 changes over a passage number 2, number 2 single phase regions and fluid flowing liquid state, liquid state and fluid mixed gas flowing into inverse above zero number 2, number 2 and gaseous fluid from flowing to the overheating regions, number 1 and number 2 to vary the size of the passage, at least one of a flow passage shape number 1 to number 3, said single-phase regions, said inverse above zero, each programmed number 2 appearing in different heat transfer coefficient in said fluid heat transfer area based on different from each other are formed on the base. In particular, number 2 the larger heat transfer area of a coefficient of heat transfer fluid flow path number 1 to number 3 at least one of number 1 and number 2 (length) size of shape by configuring flow passage be greatly reduced. Further, heat exchanger or steam generator size is reduced together to form heat exchanger or steam generator installation space can be reduced. In addition, the compact reactor vessel and reactor building with a negative number can be greatly increases the diameter of nuclear-configurable. Number 1 in Figure 1 shows a plate heat exchanger of the existing method also receiving fluid flow number 2 number 2 transfer heat from fluid passage structure of plate indicating the general outline. Figure 2 shows a plate heat exchanger in heat transfer fluid flow number 1 number 2 of the existing method also fluid passage structure of plate number 1 indicating the general outline. Figure 3 shows a plate type vapor generator of the existing method also heat transmitted to the liquid gas changes over a number 2 number 2 plate having a fluid intake passage structure of 5.10 indicating general outline. Figure 4 shows a plate heat exchanger of the present invention indicating the general outline of number 1 also in the embodiment according to one passage. Figure 5 shows a general outline of the present invention also one in the embodiment according to plate type heat exchanger passage indicating the number 2. In the embodiment shown in Figure 11 shows a 6 to 5 also representing a general outline are also also other passage number 2. Figure 12 shows a plate heat exchanger with 4 and 5 also may also monitor shown in general outline indicating euro department. Also shown in Figure 13 shows a number 2 number 2 fluid passage 5 also shown in general outline a change of state of a regasification delivery area of visually representing a general outline. Figure 14 shows a passage number 2 number 2 to 5 also also shown in indicating a change in the heat transfer coefficient of the fluid delivery zone [...] regasification of graph. Hereinafter, the present invention with reference to the drawing for nuclear having the same associated heat exchanger and the corresponding business are provided as follows. It is apparent that a single representation of the differently in order not providing language translators, comprising plurality of representation. Even referred to as different in the embodiment, the same or similar elements are provided with the same preceding in the embodiment, to impart a similar drawing code description local dispensed the on-sensors other. The specification disclosure to the example embodiment described specifically in publicly known techniques related to the subject matter of the disclosure description is a specification description example embodiment uses the analogy if can be decided to be supplied from a substrate. The attached drawing specification for example embodiment to easily understand the disclosure to only, by the attached drawing specification disclosure to event number not one technical scheme, all changing range of idea and techniques of the present invention, including the water to replacement should understood to evenly. Hereinafter, where there is a plate heat exchanger or plate type heat exchanger special referred (heat exchanger) and dropped on the printed circuit board, or other hybrid (hybrid) 3D technology can be applied even when, not limited coverage are not correct. In addition, hereinafter liquid into a vapor (steam generator) steam generator heat exchanger description is changing even force can be described steam generator heat exchanger description is replacing a substrate. Figure 4 shows a plate type heat exchanger of the present invention also one in the embodiment according to (100) passage number 1 (110) indicating the general outline degrees and, in the embodiment according to Figure 5 of the present invention one plate heat exchanger (100) of passage number 2 (120) indicating the general outline are disclosed. The reference also 4 and also 5, heat exchanger (100) includes a passage number 1 (110) and passage number 2 (120) having a predetermined wavelength. Passage number 1 (110) is number 1 fluid (110a) flows are formed on the base. Passage number 1 (110) is said number 1 fluid (110a) through the disk channel (111) can be with. Said passage channel (111) fluid flowing through said number 1 (110a) single phase (single phase) liquid or gaseous flow exhibits, [...] passage number 2 (120) number 2 flowing fluid (120a) than the fluid outlet temperature higher than said number 2 (120a) gradually reduced temperature while delivering the heat to combustion chamber. Stage, when the heat exchanger is a condenser and vice versa utilized passage number 1 (110) to passage number 2 (120) of outlet temperature at a lower temperature than liquid is introduced in disapproval. Passage said number 1 (110) fluid flow of the existing method can be a primary general configurations are applied. In addition, passage number 1 (110) is number 1 fluid (110a) flow area orA plurality so as to increase the heat transfer area can be composed, as shown in also 4 open or closed channels as well as streamlined flow may be applied to disapproval. Passage number 2 (120) said number 1 is fluid (110a) in heat exchange on the number 2 fluid (120a) flows are formed on the base. Said number 2 fluid (120a) is said number 1 fluid (110a) of outlet temperature at a lower temperature than liquid is supplied, passage number 2 (120) regasification of 5.10 fluid delivery zone number 1 (110a) through (steam generator in the case of steam) to change in terms of exchanging heat with the gas. Wherein, passage number 2 (120) is, single-phase regions (121) on, inverse above zero (122) on, programmed portion (123) having a predetermined wavelength. Said single-phase regions (121) is liquid-phase regions (121) may be referred to as disclosed. In addition, passage number 2 (120) is number 2 fluid (120a) can be composed of a plurality so as to increase the cross sectional area or heat transfer area. And, said number 2 passage (120) is lower portion of passage number 2 (120) number 2 flowing fluid (120a) of the inlet header (126a) outlet header (126b) can be formed. Single-phase regions (121) includes a passage number 2 (120) with a predetermined number 2 fluid (120a) flow passage channel a plurality of number 1 (121a) with, the introduced number 2 fluid (120a) liquid state is applied to the combustion chamber. Wherein, number 2 fluid (120a) rises along the fluid flow path while the number 1 (110a) by with a heat temperature substrate. Inverse above zero (122) is a single-phase regions (121) number 2 through fluid (120a) flow passage channel a plurality of number 2 (122a) having, said number 2 fluid (120a) state (steam generator in the case of steam) is mixed with liquid and gas to flow combustion chamber. Wherein, number 2 fluid (120a) rises along the fluid flow path is in the liquid state while number 2 (120a) temperature is raised and the, number 2 fluid (120a) auto-run gas (steam generator in the case of steam) the temperature of the boiling point while gradually changing to other. Programmed unit (123) is above zero said inverse (122) number 2 through fluid (120a) flow passage channel a plurality of number 3 (123a) wherein, said number 2 fluid (120a) gas state is applied to the combustion chamber. Wherein, said number 2 fluid (120a) with rising gas (steam generator in the case of steam) flow along a is thereby elevating the temperature of a gas when the temperature of the fluid saturation temperature beyond the most number 2 (120a) is vaporized fluid is cut off pieces to be coated. On the other hand, programmed unit (123) said number 2 in fluid (120a) is therefore reduces the heat transfer regions where gases of low density. Described prior, flow channel number 1 to number 3 (121a, 122a, 123a) the cleaning solution (plate type) or printing substrate-like (printed circuit type) can be formed. In addition, number 1 to number 3 passage channel (121a, 122a, 123a) number 1 to number 3 at least one of the flow channel (121a, 122a, 123a) on the outlet channel between adjacent fluid flow path in said number 2 (120a) can be configured in the form of closed to the service cannot be executed. E.g., flow channel number 1 to number 3 (121a, 122a, 123a) also the number 1 to number 3 as shown in the 5 passage channel (121a, 122a, 123a) on the outlet channel between adjacent fluid flow path in said number 2 (120a) can be configured in the form of closed both to the service cannot be executed. In addition, number 1 to number 3 passage channel (121a, 122a, 123a) each passage number 2 (120) extending straight respectively towards the inlet side of fluid in can be formed. On the other hand, but not shown in the drawing, said number 1 to number 3 passage channel (121a, 122a, 123a) fluid at least one of the number 2 (120a) portion of the first flow path to cause a change in the region of streamlined flow resistances are, said number 2 fluid (120a) portion of the surface of the flow path to cause a change in patients further form disapproval. Wherein, said heat exchanger (100) includes a passage number 1 and number 2 (110,120) to vary the size of, said number 1 to number 3 passage channel (121a, 122a, 123a) of at least one of the shape of the flow path, said single-phase regions (121), said inverse above zero (122), said programmed unit (123) as each said number 2 fluid (120a) based on different heat transfer coefficient can be configured to have a different heat transfer area. Wherein, said heat transfer coefficient for heat transfer quantity unit such components as a unit heat transfer area occurs means other. In addition, number 2 fluid (120a) correspond to the number 2 for said heat transfer fluid (120a) flows to a plurality of flow paths more compact flag can exhibit greater heat transfer area. In addition, said heat exchanger (100) is, said number 1 and number 2 passage (110,120) to vary the size of, single-phase regions (121), inverse above zero (122), programmed unit (123) the shape of at least one of the passage, said single-phase regions (121), said inverse above zero (122), said programmed unit (123) as number 2 respectively fluid (120a) based on different heat transfer coefficient may be configured to different heat transfer area disapproval. For example, number 2 fluid (120a) coefficient of heat transfer size for said inverse above zero (122), single-phase regions (121), programmed unit (123) reduced order, number 1 and number 2 passage (110,120) to reduce the size of, flow channel number 1 to number 3 (121a, 122a, 123a) said at least one of the heat transfer coefficient of the larger heat transfer area of the shape of the flow path can be formed. In one example, as shown in coefficient of heat transfer from the smallest size also 5 number 3 passage channel (123a) number 1 and number 2 shape flow passage channel (121a, 122a) greater than the heat transfer area can be configured to a plurality of shape. In addition, the number 1 and number 2 of the present invention drawing are passage (110,120) to reduce the size of number 2 fluid (120a) radiates heat to a passage structure shown to, passage number 2 (120) shown in regasification of fluid delivery zone number 2 (120) of the coefficient of heat transfer passage number 1 and number 2 by applying different passage structure according (110,120) is also possible in the embodiment where a size of can be increased. On the other hand, but not shown in the drawing, the present invention refers to, number 1 to evaluating cleanliness of metal which is heated by a fluid, the heat exchange fluid circulating fluid heat exchanger including said number 1 number 2 the vapor to create a nuclear-in other number. Wherein, said heat exchanger passage and passage number 2 and number 1, said number 2 single phase region part passage, inverse above zero, and overheating regions, said heat exchanger, passage number 1, number 2 passage, single-phase regions, inverse above zero, the programmed, aforementioned heat exchanger (100) on, heat exchanger (100) in connection with the number 1 and number 2 passage (110,120) on, passage number 2 (120) with a single phase regions (121), inverse above zero (122), programmed portion (123) of each of the configuration and effective side similar features. The configured than the present invention, a heat exchange fluid and said heat exchanger fluid flow number 2 number 1 (100) of passage number 2 (120) is, number 2 fluid (120a) flowing liquid state a single phase regions (121) on, number 2 fluid (120a) mixed liquid and gas from flowing to the above zero state inverse (122) on, number 2 fluid (120a) is programmed from flowing to the gaseous portion (123) and, passage number 1 and number 2 (110,120) to vary the size of, flow channel number 1 to number 3 (121a, 122a, 123a) flow at least one of shape, said single-phase regions (121), said inverse above zero (122), said programmed unit (123) as number 2 respectively fluid (120a) of different heat transfer coefficient based on heat transfer area is different from each other are formed on the base. In particular, number 2 fluid (120a) heat transfer coefficient of the larger heat transfer area of flow channel number 1 to number 3 (121a, 122a, 123a) shape by configuring at least one flow passage number 1 and number 2 (110,120) can be greatly reduces the size of (length). Further, heat exchanger (100) size is reduced as the heat exchanger (100) together in the installation space can be reduced. In addition, the compact reactor vessel and reactor building with configurable group is a negative number in a second direction to diameter of nuclear tranfectants disclosed. On the other hand, said heat exchanger (100) includes a flow path resistance part (124) can be further comprises. The oil passage penetrating portion (124) has a passage number 2 (120) which is located on an inlet section, said inlet section in fluid number 2 (120a) configured to cause anxiety that would otherwise flow resistance to flow of a plurality of intake channel (124a) can be with. Said intake channel (124a) is number 2 fluid (120a) flow channel for flow of said number 1 (121a) to form and can be. In addition, the oil passage penetrating said channel (124a) flow channel number of said number 1 (121a) can be configured such that the number of, the intake channel (124a) of electrically connected to the first intake channel (124a) can be more effectively reduce contamination (fouling) in a flow path. In the first heat exchanger (or steam generator) contamination (fouling) period of time while said passage is narrowed cross-sectional area of a flow channel or by operation various impurities accumulated water flow which affects the outer big phenomenon. On the other hand, said heat exchanger (100) is, said intake channel (124a) which pass through the number 2 fluid (120a) is said number 1 passage channel (121a) from each, said intake section (124) on said single-phase regions (121) formed between said number 2 fluid (120a) and a plurality of redistribution of flow passage channel (125a) having flow redistribution unit (125) can be further comprises. Flow redistribution portion (125) of the display screen can be other various shapes are employed, in the present invention and not limited to any particular shape. Hereinafter, 5 also shown in passage number 2 (120) in the embodiment described with reference to fig. 6 to 11 also for other substrate. Figure 11 shows a passage number 2 to 6 also shown in also also 5 (120) in the embodiment other representing a general outline are disclosed. The first reference also 6, heat exchanger (200) number 2 is equipped fluid (220a) flow passage said number 2 (220) includes a flow path channel number 1 (221a) having a single phase regions (221) on, number 2 passage channel (222a) having inverse above zero (222) on, number 3 passage channel (223a) programmed with part (223) on, the oil passage penetrating channel (224a) having a flow path resistance part (224) on, redistribution passage channel (225a) having flow material (225) on, inlet header (226a) and outlet header (226b) and, said number 2 passage (220) on, single-phase regions (221), inverse above zero (222), programmed portion (223), the oil passage penetrating portion (224) and flow redistribution unit (225) on, inlet header (226a) and outlet header (226b) is, aforementioned heat exchanger (100) in connection with the number 1 to number 3 passage channel (121a, 122a, 123a) with a single phase regions (121), inverse above zero (122), programmed unit (123) on, intake channel (124a) having a flow path resistance part (124) on, redistribution passage channel (125a) having flow redistribution unit (125) on, inlet header (126a) and outlet header (126b) and an effective on similar characteristics of each of the aspects. Wherein, a plurality of number 1 to number 3 passage channel (221a, 222a, 223a) each said number 1 to number 3 they communicate with each other to form at least one flow channel (221a, 222a, 223a) in the outlet channel between adjacent fluid flow path on said number 2 (220a) can be made to a mobile. Such as fluid flow channel between said number 2 (220a) on a side of the shell tube type heat exchanger configured as a mobile when shell&whose properties are comparable to the first fluid number 2 (220a) is reduced anxiety flow of intake portion (224) can be required for reducing resistance of a flow path, the oil passage penetrating portion (224) includes a shell&economizer tube type heat exchanger (economizer) similar to may have. On the other hand, but not shown in the drawing, number 1 to number 3 passage channel (221a, 222a, 223a) is formed in at least one of which is connected to each other, said number 1 to number 3 passage channel (221a, 222a, 223a) fluid at least one of the number 2 (220a) portion of the first flow path to cause a change in the region of streamlined flow resistances are, said number 2 fluid (220a) portion of the surface of the flow path to cause a change in patients further form disapproval. Next, the reference also 7, heat exchanger (300) number 2 is equipped fluid (320a) flow passage said number 2 (320) includes a flow path channel number 1 (321a) having a single phase regions (321) on, number 2 passage channel (322a) having inverse above zero (322) on, number 3 passage channel (323a) having programmed portion (323) on, the oil passage penetrating channel (324a) having intake portion (324) on, redistribution passage channel (325a) redistributing part having oil amount (325) on, inlet header (326a) and outlet header (326b) and, passage said number 2 (320) on, single-phase regions (321), inverse above zero (322), programmed unit (323), the oil passage penetrating portion (324) and flow redistribution section (325) on, inlet header (326a) and outlet header (326b) is, aforementioned heat exchanger (100) in connection with the number 1 to number 3 passage channel (121a, 122a, 123a) consumed by a single-phase regions opening (121), inverse above zero (122), programmed unit (123) on, intake channel (124a) having a flow path resistance part (124) on, redistribution passage channel (125a) having flow redistribution unit (125) on, inlet header (126a) and outlet header (126b) and an effective on similar characteristics of each of the aspects. Wherein, a plurality of number 1 to number 3 passage channel (321a, 322a, 323a) said number 1 to number 3 are interconnected with each other to form at least one flow channel (321a, 322a, 323a) in the outlet channel between adjacent fluid flow path on said number 2 (320a) can be made to a mobile. In addition, number 1 passage channel (321a) as town number 2 fluid (320a) cause a change in flow path portion of the lozenge shape (diamond shape) while resistances are bent form (shown in the form of streamlined simplifies) flow passage can be further. In addition, but not shown in the drawing, said number 1 passage channel (321a) number 2 is fluid (320a) to cause a change in the direction of travel while a lower intake for enhancing heat transfer efficiency for further separating the flow paths of flow resistances are streamlined (streamlined shape) disapproval. On the other hand, this number 1 passage channel (321a) number 2 the structure of the flow channel (322a) number 3 or flow channel (323a) can be applied. Next, with reference to the 8 also, heat exchanger (400) number 2 is equipped fluid (420a) flow passage said number 2 (420) is number 1 passage channel (421a) with a single phase regions (421) on, number 2 passage channel (422a) having inverse above zero (422) on, number 3 passage channel (423a) having programmed unit (423) on, the oil passage penetrating channel (424a) having a flow path resistance part (424) on, redistribution passage channel (425a) redistributing part having oil amount (425) on, inlet header (426a) and outlet header (426b) and, passage said number 2 (420) on, single-phase regions (421), inverse above zero (422), programmed unit (423), the oil passage penetrating portion (424) and flow redistribution unit (425) on, inlet header (426a) and outlet header (426b) is, aforementioned heat exchanger (100) in connection with the number 1 to number 3 passage channel (121a, 122a, 123a) consumed by a single-phase regions opening (121), inverse above zero (122), programmed unit (123) on, intake channel (124a) having a flow path resistance part (124) on, redistribution passage channel (125a) having flow redistribution unit (125) on, inlet header (126a) and outlet header (126b) and an effective on similar characteristics of each of the aspects. Wherein, a plurality of number 1 to number 3 passage channel (421a, 422a, 423a) said number 1 to number 3 are interconnected with each other to form at least one flow channel (421a, 422a, 423a) in the outlet channel between adjacent fluid flow path on said number 2 (420a) can be made to a mobile. In addition, as shown said number 1 to number 3 passage channel (421a, 422a, 423a) said number 2 fluid heat transfer area (420a) heat transfer coefficient decreasing order i.e., inverse above zero (422), single-phase regions (421), overheating regions (423) increasing order can be formed. Next, the reference also 9, heat exchanger (500) number 2 is equipped fluid (520a) flow passage said number 2 (520) is number 1 passage channel (521a) having a single phase regions (521) on, number 2 passage channel (522a) having inverse above zero (522) on, number 3 passage channel (523a) programmed with part (523) on, the oil passage penetrating channel (524a) having a flow path resistance part (524) on, redistribution passage channel (525a) redistributing part having oil amount (525) on, inlet header (526a) and outlet header (526b) and, said number 2 passage (520) on, single-phase regions (521), inverse above zero (522), programmed part (523), the oil passage penetrating portion (524) and flow redistribution unit (525) on, inlet header (526a) and outlet header (526b) is, aforementioned heat exchanger (100) in connection with the number 1 to number 3 passage channel (121a, 122a, 123a) consumed by a single-phase regions opening (121), inverse above zero (122), programmed unit (123) on, intake channel (124a) having a flow path resistance part (124) on, redistribution passage channel (125a) having flow redistribution unit (125) on, inlet header (126a) and outlet header (126b) and an effective on similar characteristics of each of the aspects. Wherein, a plurality of number 1 to number 3 passage channel (521a, 522a, 523a) they communicate with each other at least one of four, the remainder number 1 to number 3 passage channel (521a, 522a, 523a) can be configured in the form closed each other at, said number 1 to number 3 passage channel (521a, 522a, 523a) in the outlet channel between adjacent fluid flow path on said number 2 (520a) such as a mobile or, number 2 fluid (520a) can be made to movement of the service cannot be executed. For example, as shown a plurality of said number 1 passage channel (521a) closed type each other, a plurality of said number 2 and number 3 passage channel (522a, 523a) can be to form each other. A flow path between said fluid channel such as or more wing number 2 (520a) on a side of the shell tube type heat exchanger configured as a mobile when shell whose properties are comparable to the first fluid&number 2 (520a) is reduced anxiety flow of intake portion (524) can be required for reducing resistance of a flow path, the oil passage penetrating portion (524) includes a shell&economizer tube type heat exchanger (economizer) similar to may have. Next, with reference to the 10 also, heat exchanger (600) number 2 is equipped fluid (620a) flow passage said number 2 (620) is number 1 passage channel (621a) having a single phase regions (621) on, number 2 passage channel (622a) having inverse above zero (622) on, number 3 passage channel (623a) programmed with part (623) on, the oil passage penetrating channel (624a) having a flow path resistance part (624) on, redistribution passage channel (625a) redistributing part having oil amount (625) on, inlet header (626a) and outlet header (626b) and, said number 2 passage (620) on, single-phase regions (621), inverse above zero (622), programmed unit (623), the oil passage penetrating portion (624) and flow redistribution unit (625) on, inlet header (626a) and outlet header (626b) is, aforementioned heat exchanger (100) in connection with the number 1 to number 3 passage channel (121a, 122a, 123a) consumed by a single-phase regions opening (121), inverse above zero (122), programmed unit (123) on, intake channel (124a) having a flow path resistance part (124) on, redistribution passage channel (125a) having flow redistribution unit (125) on, inlet header (126a) and outlet header (126b) and an effective on similar characteristics of each of the aspects. Wherein, a plurality of number 1 to number 3 passage channel (621a, 622a, 623a) said number 1 to number 3 are interconnected with each other to form at least one flow channel (621a, 622a, 623a) in the outlet channel between adjacent fluid flow path on said number 2 (620a) can be made to a mobile. Such as or more wing including a flow path channel between said local number 2 fluid (620a) on a side of the shell tube type heat exchanger configured as a mobile when shell&whose properties are comparable to the first fluid number 2 (620a) is reduced anxiety flow of intake portion (624) can be required for reducing resistance of a flow path, the oil passage penetrating portion (624) includes a shell&economizer tube type heat exchanger (economizer) similar to may have. In addition, number 1 to number 3 passage channel (621a, 622a, 623a) as town number 2 fluid (620a) cause a change in flow path portion of the lozenge shape (diamond shape) while resistances are bent form (shown in the form of streamlined simplifies) flow passage can be further. In addition, as shown in the smallest size 10 also the coefficient of heat transfer flow channel number 3 (623a) number 1 and number 2 shape flow passage channel (621a, 622a) greater than the heat transfer area can be configured to a plurality of shape. 2000. The peripheral surface of the heat transfer fluid flow path selection of a channel number 2 (620a) number 1 as well as of fluid (110a) so that a gradient to determine the heat transfer, heat exchanger selectively accomplishing according. Next, the reference also 11, heat exchanger (700) number 2 is equipped fluid (720a) flow passage said number 2 (720) is number 1 passage channel (721a) having a single phase regions (721) on, number 2 passage channel (722a) having inverse above zero (722) on, number 3 passage channel (723a) having programmed unit (723) on, the oil passage penetrating channel (724a) having a flow path resistance part (724) on, redistribution passage channel (725a) redistributing part having oil amount (725) and, passage said number 2 (720) on, single-phase regions (721), inverse above zero (722), programmed unit (723), the oil passage penetrating portion (724) and flow redistribution unit (725) is, aforementioned heat exchanger (100) in connection with the number 1 to number 3 passage channel (121a, 122a, 123a) with a single phase regions (121), inverse above zero (122), programmed unit (123) on, intake channel (124a) having a flow path resistance part (124) on, redistribution passage channel (125a) having flow redistribution unit (125) and an effective aspects on each of the similar features. Wherein, said number 2 passage (720) on the upper side of the lower passage number 2 (720) number 2 flowing fluid (720a) of inlet header (726a) outlet header (726b) can be formed. In Figure 11 the inlet header (726a) outlet header (726b) is passage number 2 (720) disposed on the same side of the but is illustrated, the same side as the front side to be assigned respectively to different may be filled. This property can be heat exchanger placement characteristics are determined according to the surface of the selectively applied to accomplishing the placement characteristics. Hereinafter, plate heat exchanger (100) with a monitor [...] (127) also for a 12 through a browser substrate. Figure 12 shows a plate-like heat exchanger 4 and also 5 also also shown in (100) with a monitor [...] (127) indicating the general outline are disclosed. The reference also 12, heat exchanger (100) includes a monitoring [...] (127) can be further comprises. Monitoring [...] (127) is, passage said number 1 (110) or said number 2 passage (120) to monitor a normal, passage number 1 (110) on passage number 2 (120) formed between a plurality of fine monitoring passage (127a) having, said number 1 fluid (110a) or said number 2 fluid (120a) is said fine monitoring passage (127a) or that the fine monitoring passage entering said (127a) passage liquid is said number 1 (110) or said number 2 passage (120) being interposed between the sense consists of whether. Monitoring [...] (127) has a passage number 1 (110) on passage number 2 (120) can be formed on one face of which opposing. In addition, monitoring [...] (127) has a passage number 1 (110) or passage number 2 (120) number 1 due to damage generated fluid (110a) or number 2 fluid (120a) on a finer monitoring passage (127a) correlation between fluid flowing in physical or chemical change of state formed by fine monitoring passage (127a) and joined with the monitoring header (127b) sensed by sensor can be made to further. Said monitoring such as [...] (127) having a heat exchanger to the heat exchanger can be increased to increase safety of monitors whether or more. Hereinafter, passage number 2 (120) shown in regasification of fluid delivery zone number 2 (120a) number 2 and change of state of the fluid (120a) also against changes in the heat transfer coefficient of a 14 13 and also through a browser substrate. Also shown in Figure 13 shows a also 5 passage number 2 (120) shown in regasification of fluid delivery zone number 2 (120a) a change of state of a general outline degrees and visually representing a general outline, [...] passage number 2 to 5 also Figure 14 (120) shown in regasification of fluid delivery zone number 2 (120a) indicating a change in the heat transfer coefficient graph are disclosed. First, the reference also 13, single-phase regions (121) is number 2 fluid (120a) number 2 when the temperature of the fluid (120a) corresponding to the saturation temperature below the super-cooled liquid state flowing region only pressure are disclosed. Single-phase regions (121) along fluid flow number 2 (120a) increase in temperature, fluid number 2 (120a) and the bubbles are formed in the temperature approaches the saturation temperature of the inverse above zero (122) transitions from the other. Wherein, single-phase regions (121) A section 13 also is shown in big. Next, inverse above zero (122) a liquid gas (steam generator in the case of steam) flowing together includes a saturation region are disclosed. The heat transfer coefficient (a low pressure or) gas flow by other delivery area most higher flow domains relative regasification of stirring. Wherein, inverse above zero (122) is supercooling (subcooled boiling) upstream from boiling, saturated nucleated boiling (saturated nucleate boiling), other boiling (forced convective heat transfer through liquid film, Liquid deficient region) can be divided into section. Inverse above zero (122) flowing fluid flow path number 2 (120a) boiling (or evaporation) both vapor saturation temperature and the gas flow only begins to be overheating or more programmed unit (123) transitions from the other. Wherein, inverse above zero (122) to B G section 13 also is shown in big. Next, programmed unit (123) is number 2 fluid (120a) number 2 when the temperature of the fluid (120a) corresponding to higher than the saturation temperature of the pressure fluid (steam) flowing region interposing only are disclosed. Usually the most lower heat transfer coefficient than the two aforementioned programmed heat formed. Wherein, programmed unit (123) is also shown in big H section 13. On the other hand, the reference also 14, passage number 2 (120) said number 2 flowing fluid (120a) programmed unit heat transfer coefficients (123), single-phase regions (121), inverse above zero (122) is incremented order. For example, single-phase region heat transfer coefficient are several hundred to thousands W/m2 K and, heat transfer coefficients and the surrounding only thousands to be W/m2 K and, heat transfer coefficients programmed hundreds tens W/m2 K can be presented. More specifically, single-phase regions (121) number 2 of fluid (120a) according to density heat transfer coefficient decreases progressively and, inverse above zero (122) number 2 of fluid (120a) according to phase change heat transfer coefficient decreases abruptly increases again in the state, programmed portion (123) of number 2 fluid (120a) for heat transfer coefficient density decreases progressively according to combustion chamber. In addition, said number 1 and number 2 passage (110,120) to reduce the size of, flow channel number 1 to number 3 (121a, 122a, 123a) gradually increasing or decreasing flow shape can be formed. For example, number 1 passage channel (121a) said number 1 the shape of the flow passage channel (121a) fluid in said number 2 (120a) based on a variation of the tube area for said incrementally increasing the coefficient of heat transfer that may, flow channel number 2 (122a) said number 2 the shape of the flow passage channel (122a) fluid in said number 2 (120a) based on a variation coefficient of heat transfer from the tube area for said increased once again before arcing occurs after that may, number 3 passage channel (123a) said number 3 the shape of the flow passage channel (123a) fluid in said number 2 (120a) based on a variation of the tube area for said incrementally increasing the coefficient of heat transfer can be formed. Stage, taking into account the heat transfer coefficient to the heat exchanger may also be used but before region constituting, in this case heat exchanger passage structure can be small when the battery is up to a specific number. The effect [...] number and small regions, the size of the region configuration selectively considering efficiency disapproval. On the other hand, said passage such as number 2 (120) constituting a heat transfer area of each heat transfer regions of the regasification of different delivery zone constituting the heat exchanger flow channel method, such as condenser or very large (e.g., supercritical heat exchanger) phase change accompanying density variations is to generate heat exchanger, vapor-liquid exchanger must vary limited endured. 100: Heat exchanger 110: Passage number 1 110A: number 1 fluid 111: Flow channel 120: Passage number 2 120A: fluid number 2 121: Single-phase regions 121A: flow channel number 1 122: Inverse above zero 122A: flow channel number 2 123: Overheating regions 123A: flow channel number 3 124: Intake portion 124A: intake channel 125: Flow redistribution unit 125A: redistribution flow channel 126A: inlet header 126B: outlet header 127: [...] monitoring 127A: fine monitoring passage 127B: monitoring header The present invention relates to a heat exchanger capable of reducing an installation space of a heat exchanger or a steam generator; and a nuclear power plant having the same. According to the present invention, the heat exchanger comprises: a first passage part through which a first fluid flows; and a second passage part through which a second fluid exchanging heat with the first fluid to be converted into gas from liquid flows. The second passage part comprises: a single-phase region part including a plurality of first passage channels through which the second fluid flowing in the second passage part flows, where the second fluid flows in a liquid state; two-phase region part including a plurality of second passage channels through which the second fluid passing the single-phase region part flows, where the second fluid flows in a state mixed with the liquid and gas; and an overheat region part including a plurality of third passage channels through which the second fluid passing the two-phase region part flows, where the second fluid flows in a gaseous state. To change a size of the first and second passage parts, the shape of at least one passage among first to third passages has a different heat transfer area than others based on a different heat transfer coefficient of the second fluid represented in each of the single-phase, two-phase, and overheat region parts. COPYRIGHT KIPO 2017 Fluid flow number 1 number 1 passage; and said number 1 heat exchange relation with the liquid and gas fluid flow passage number 2 and number 2 changes, said number 2 passage, said number 2 with a predetermined length from said number 2 number 1 flow channel having a plurality of passage for fluid flow therethrough, fluid flowing liquid state said number 2 single phase regions; said fluid flow through said number 2 single-phase regions having a plurality of number 2 flow channel, said number 2 gas liquid mixed state fluid flowing into inverse above zero; and said flow channel having a plurality of number 3 through the inverse above zero fluid flow said number 2, said number 2 programmed fluid from flowing to the gaseous part wherein, said number 1 and number 2 to vary the size of the passage, at least one of said number 1 to number 3 the shape of the flow channel, said single-phase regions, said inverse above zero, said number 2 appearing in said each programmed based on different heat transfer area of fluid of different heat transfer coefficient characterized formed heat exchanger. According to Claim 1, said coefficient of heat transfer from said inverse above zero size, said single-phase regions, said programmed order part decreases, said number 1 and number 2 to reduce a size of a passage, said number 1 to number 3 the shape of the flow passage at least one of said heat transfer coefficient of the larger heat transfer area characterized line and the heat exchanger. According to Claim 2, said number 1 and number 2 the shape of the flow passage channel flow greater than said number 3 flow channel configured to have a shape characterized by a heat exchanger heat transfer area. According to Claim 1, at least one of the plurality of said number 1 to number 3 are interconnected with each other to form a flow channel to the outlet channel on said number 1 number 3 closes the flow channel between adjacent said number 2 characterized in that movement of the fluid toward the front side heat exchanger. According to Claim 1, at least one of the plurality of said number 1 to number 3 flow channel adjacent said number 1 to number 3 on the outlet channel closes the flow channel between the movement of the fluid cannot be characterized is closed said number 2 are configured in the form a heat exchanger. According to Claim 4 or Claim 5, said number 1 to number 3 in the direction of travel of the fluid flow channel while said number 2 cause a change in at least one of the resistances are streamlined flow passage characterized in further including a heat exchanger. According to Claim 4 or Claim 5, said number 1 to number 3 in the direction of travel of the fluid flow channel to cause a change in at least one of the curve or the flow paths of said number 2 patients characterized form further comprising a heat exchanger. According to Claim 1, said number 1 and number 2 to reduce a size of a passage, the shape of the flow passage channel said number 1 based on a variation coefficient of heat transfer from said fluids flow channel said number 2 said number 1 of the tube area formed by incrementally increasing characterized heat exchanger. According to Claim 1, said number 1 and number 2 to reduce a size of a passage, said number 2 the shape of the flow passage channel said number 2 based on a variation coefficient of heat transfer from said flow channel said number 2 fluids decreases progressively increased once again after the tube area configured to heat exchanger characterized. According to Claim 1, said number 1 and number 2 to reduce a size of a passage, the shape of the flow passage channel said number 3 said number 3 based on a variation coefficient of heat transfer from said fluids flow channel said number 2 of the tube area formed by incrementally increasing characterized heat exchanger. According to Claim 1, said number 2 the inlet passage being disposed in said fluid flow resistance in the inlet section said number 2 intake channel further including a flow path configured to cause a plurality of insulating heat exchanger characterized. According to Claim 11, said intake channel electrically connected to the first flow path to said intake channel in mitigating contamination, said number of said number 1 the number of intake flow channel that is configured heat exchanger characterized. According to Claim 1, said number 1 to number 3 (plate type) or printing the cleaning flow channel formed of substrate-like (printed circuit type) characterized heat exchanger. According to Claim 1, said number 1 fluid or said number 2 or heat transfer area so as to increase the cross sectional area of the fluid, said number 2 passage and at least one of the plurality consists of said number 1 passage characterized heat exchanger. According to Claim 1, said number 1 normal to monitor a passage passage or said number 2, passage and passage formed between said number 2 having a plurality of fine monitoring placed around said number 1, said number 1 fluid path inlet or that the fluid or said number 2 said fluid passage or said number 2 fine monitoring at euro fine monitoring passage configured to detect whether said number 1 being interposed between the heat exchanger further including a monitor euro department characterized. Fluid flow number 1 number 1 passage; and said number 1 heat exchange relation with the liquid and gas fluid flow passage number 2 and number 2 changes, said number 2 passage, said number 2 with a predetermined length from said number 2 passage fluid flowing liquid state a single phase regions; said single-phase regions said number 2 through liquid mixed state inverse above zero fluid gas from flowing to the; and said gaseous fluid flowing into said number 2 inverse above zero through programmed part wherein, said number 1 and number 2 to vary the size of the passage, said single-phase regions, said inverse above zero, said at least one of the programmed part the shape of the flow path, said single-phase regions, said inverse above zero, said number 2 appearing in said each programmed based on different heat transfer area of fluid of different heat transfer coefficient characterized formed heat exchanger. Fluid flow number 1 number 1 passage; and said number 1 into steam in heat exchange relation with the liquid and varying fluid flow passage number 2 and number 2, said number 2 passage, said number 2 with a predetermined length from said number 2 number 1 flow channel having a plurality of passage for fluid flow therethrough, fluid flowing liquid state said number 2 single phase regions; said fluid flow through said number 2 single-phase regions having a plurality of number 2 flow channel, said number 2 liquid and steam is mixed with fluid from flowing to the state inverse above zero; and said flow channel having a plurality of number 3 through the inverse above zero fluid flow said number 2, said number 2 including a programmed fluid from flowing to the vapor state, said number 1 and number 2 to vary the size of the passage, at least one of said number 1 to number 3 the shape of the flow channel, said single-phase regions, said inverse above zero, said each said number 2 appearing in different heat transfer coefficient on the basis of programmed fluid characterized by different heat transfer area configured to have a steam generator. Fluid flow number 1 number 1 passage; and said number 1 into steam in heat exchange relation with the liquid and varying fluid flow passage number 2 and number 2, said number 2 passage, said number 2 with a predetermined length from said number 2 passage fluid flowing liquid state a single phase regions; said single-phase regions said number 2 through liquid and steam mixed with inverse above zero fluid from flowing to the state; and said fluid flowing through said number 2 programmed inverse above zero in vapour form part wherein, said number 1 and number 2 to vary the size of the passage, said single-phase regions, said inverse above zero, said at least one of the programmed part the shape of the flow path, said single-phase regions, said inverse above zero, said each said number 2 appearing in different heat transfer coefficient on the basis of programmed fluid characterized by different heat transfer area configured to have a steam generator. Number 1 to evaluating cleanliness of metal which is heated by a fluid, the heat exchange fluid circulating fluid heat exchanger to create the number 1 number 2 in nuclear including vapor, said heat exchanger, said number 1 number 1 fluid flow passage; and fluid flow passage and said number 2 number 2, said number 2 passage, said number 2 with a predetermined length from a plurality of number 1 flow channel having a fluid flow passage said number 2, said number 2 fluid flowing liquid state a single phase regions; said fluid flow through said number 2 single-phase regions having a plurality of number 2 passage channel, said number 2 gas liquid mixed state fluid flowing into inverse above zero; and said flow channel having a plurality of number 3 through the inverse above zero fluid flow said number 2, said number 2 programmed fluid from flowing to the gaseous part wherein, said number 1 and number 2 to vary the size of passage, said number 1 to number 3 at least one of the shape of the flow channel, said single-phase regions, said inverse above zero, as based on said number 2 each programmed in said fluid of different heat transfer coefficient is different from each other forming a heat transfer area of characterized nuclear.
