SYSTEM FOR MEASURING TEMPERATURE OF NUCLEAR REACTOR AND METHOD FOR ESTIMATING STATUS OF NUCLEAR REACTOR USING SAME
The present invention refers to nuclear reactor temperature measuring system and method state recognizing of reactor using relates to. Measure the temperature of the reactor coolant current can HJTC nuclear instrument within Roh and within the more rigid the fixture a meter (Heated Junction Thermocouple, thermocouple measuring water level coolant) which, nuclear reactor and steam generator RTD fast response to pre-impregnating agents for a hot connected (Resistance Thermocouple Detector).. nuclear instrument within Roh original function entry accident hit temperature coolant through the inlet and the outlet of core condition and within the range reaches 650 °C wherein for measuring the whether, after this core temperature of at least one or more the closest surface 1260 °C or more longer can't measure the temperature. HJTC level coolant in a nuclear reactor function of origin for monitoring a is object, bonding an unfired junction (unheated junction) measure the temperature through significant, the logical source including the device unit on the appropriate function, a nail. Hot leg is installed on one side the medium varies the degree of measurable the RTD fast response is restricted to 400 °C the, a temperature at which significant accident of the very band. limiting. In significant and the conditions in the nuclear reactor to a temperature measuring the monitoring system is eliminated establishing strategies for incident response significant standby it is also shown how the molten core unit significant which checks whether there proceeds. the substrate. Thus significant useful when accident of nuclear reactor and temperature measuring system of reactor using state recognizing method by a rope. provides. Purpose of the invention the present said in temperature measurement system of a nuclear reactor, nuclear reactor said outer surface to measure the temperature of which plurality of comprising temperature measuring means, said temperature detection mechanism can produce a, at the height number 1 nuclear reactor outer surface to measure the temperature of said temperature measuring means and number 1 ; other height and said number 1 number 2 at the height said nuclear reactor to measure the temperature of outer surface number 2 including temperature measuring means is achieved by. Said temperature measuring means may include the thermocouple. Said temperature measuring means the pad type stud bolt method and welding said into one way impulses towards method is attached to an exterior surface nuclear reactor may be proposed. Said nuclear reactor nuclear fuel is inserted therein, and the fuel region and said non-nucleated not located is positioned at a lower part of, and the fuel region non-nucleated nuclear fuel is inserted therein, and the fuel region divided into a nuclear located, said non-nucleated said detection mechanism can produce a temperature, and the fuel region than said nuclear fuel region. may be positioned more. The one or more temperature measuring means at least 2 said said reactor at the same height in. may be positioned in different directions. Said nuclear, and the fuel region in a portion of said temperature measuring means provided with different according to the corresponding may be proposed. Reactor inner end for insertion into said for neutron reactor inner said for measuring temperature and a different located at about the same level of at least 2 further includes nuclear instrument within Roh including thermocouple, said at least a portion of said temperature measuring means nuclear instrument within Roh a height is formed on the first corresponding thermocouples may be proposed. Purpose of the invention the present said in method state recognizing a nuclear reactor, said nuclear reactor and to measure the temperature of outer surface; said reactor from said measured temperatures said internal steam temperature at, molten core unit significant melt core and progress state the horizontal pattern and the least one positions including step is achieved by. Said nuclear reactor nuclear fuel is inserted therein, and the fuel region and said non-nucleated not located is positioned at a lower part of, and the fuel region non-nucleated nuclear fuel is inserted therein, and the fuel region divided into a nuclear located, and to measure the temperature of said, and the fuel region non-nucleated, said reactor inner said from said measured temperatures can be is decided by using a temperature steam. At least 2 connection with the other end of the reactor at the height measures the temperature, said molten core compared to a temperature measured progress status can be. Said nuclear reactor nuclear fuel is inserted therein, and the fuel region and said non-nucleated not located is positioned at a lower part of, and the fuel region non-nucleated nuclear fuel is inserted therein, and the fuel region divided into a nuclear located, said nuclear fuel and the temperature made by plurality of directions, said flow direction melt core from said measured temperatures can be on the basis of the counted value. Said nuclear reactor nuclear fuel is inserted therein, and the fuel region non-nucleated not located, said is positioned at a lower part of, and the fuel region non-nucleated nuclear fuel is inserted therein for a nuclear fuel position said region and is positioned at a lower part of, and the fuel region nuclear nuclear fuel is inserted therein not located, and the fuel region divided into a lower non-nucleated, plurality, and the fuel region non-nucleated lower said level by measuring a in the direction of, said core from said measured temperatures can be location melt. Said nuclear reactor and determining the temperature inside an item to be; said said measured internal temperature and by comparing the temperature an outer face measuring said step of recording a nuclear reactor may further include any. According to the present invention useful when accident significant and temperature measurement system of nuclear reactor of reactor using state recognizing method is provided. Also in the present invention Figure 1 shows a reactor height on measuring means and indicative of the position of, Also Figure 2 shows a nuclear reactor in the present invention by the circumferential direction of and indicative of the position of measuring means, Also Figure 3 shows a nuclear reactor in the present invention and indicating a measuring system and, Also Figure 4 shows a placement of measuring means on according of the present invention number 1 embodiment concerns a and, According to Figure 5 shows a also on measuring means of the present invention number 1 embodiment shown and, Figure 6 shows a on according of the present invention number 2 embodiment also concerns a arrangement of measuring means and, Figure 7 shows a according on measuring means of the present invention number 2 embodiment also shown and, Figure 8 shows a on according of the present invention number 3 embodiment also concerns a arrangement of measuring means and, Figure 9 shows a measuring means on according of the present invention number 4 embodiment also concerns a arrangement of.. Reference to hereinafter drawing. as further described further the present invention. With an the drawing more specifically a technical idea of the present invention account for the one example of the present invention to the mike and the drawing with an event has not limited to. Also 3 also to 1 reference to the described temperature measurement system nuclear reactor of the present invention. Also in the present invention Figure 1 shows a temperature measuring means for classifying the temperature and gas flow reactor and indicative of the position of, in Figure 2 in the present invention provided in the circumferential direction of the nuclear reactor temperature measuring means and indicative of the position of, indicating a measuring system and nuclear reactor Figure 3 in the present invention.. An affinity substance as a measuring subject temperature nuclear reactor (10) position is provided at the top has nuclear fuel is inserted therein and not located, and the fuel region non-nucleated (A), nuclear fuel is inserted therein, and the fuel region a nuclear position, and the fuel region and nuclear (B) is positioned at a lower part of (B) nuclear fuel is inserted therein, and the fuel region non-nucleated lower not located can be divided into (C). Temperature measuring means (20) a nuclear reactor (10) of measuring temperature of the external surface of the material, nuclear reactor (10) is attached to an exterior surface of. Temperature measuring means (20) can be degraded and the thermoelectric returns the substrate, in addition to thermocouple measure the temperature may be a configured. also employed. Used thermocouple and a tungsten-rhenium of bits which can be used in high temperature, use can be made of, type. Temperature measuring means (20) a nuclear reactor (10) of different heights may be positioned and the direction, the.. Acids to epoxygenated fatty acids therein direction wherein, nuclear reactor (10) provided in the circumferential direction of the. from the detected text position to. Such a nuclear reactor (10) at the height five directions temperature measuring means (20) can be is located. For example of Figure 2 (a) such as a dog or are disposed at an angle which is also 90 4, of Figure 2 (b) such as a dog 2 can be disposed at an angle which is also 180. The (a) of Figure 3 (c) 4 such as a dog or are disposed at an angle which is also 90 in different directions and a (a), i.e. 45 degrees, and a deployed position frame. indicative. Other in the embodiment 120 also are disposed at an angle which is in a dog 3 such as a nuclear reactor (10) height positioned in locating a temperature measuring means (20) used in a variety of and angle number of can be change. In addition the non-equal in at about the same level as the permitting protected from the contaminant of molecule in angle.. In addition different lengths in their height maybe located and arranged in number and direction. Temperature measuring means in Figure 1 (20) supplied to the light 5 according to height is divided. Number 1 temperature measuring means (20a), and the fuel region (A) to the non-nucleated, number 2 temperature measuring means (20b), and the fuel region (B1) to nuclear the upper, number 3 temperature measuring means (20c), and the fuel region (B2) to the central nuclear, temperature measuring means number 4 (20d) to (B3), and the fuel region nuclear the lower, temperature measuring means number 5 (20e), and the fuel region (C) the lower non-nucleated. Each temperature measuring means (20a to 20e) 2 also the nuclear reactor such as a (10) plurality along the circumference of. may be positioned. Also 3 with a temperature measuring means (20) measured at a temperature calculator (30) is input. Calculator (30) result temperature measuring positions in learn of the status of nuclear reactor where it is heated, in a nuclear reactor and steam temperature at internal reactor state, significant progress melt unit (melt temperature includes) and melt positions may comprise an least one. Calculator (30) the passing processor judges temperature result in reactor grasp and/or the diode sensor has an end connected (40) through a second window displays IDS entertainment factor, so as to 206. Temperature results and/or grasping reactor state 206 extractant 0.5-1.0% is a graphic Image on a processed may be provided. Other in the embodiment in operation unit (30) the passing processor judges in reactor grasp and/or result temperature warning based on the state signal, the source connected to a may be loaded with occur, for warning. Although not shown, operation unit (30) using, provides information of the first member so as upper protruding parts of longitudinal wires actions are taken to automatically guide or a. configuration. Won method state recognizing as to. as further described to embodiment. Also Figure 4 shows a placement of measuring means on according of the present invention number 1 embodiment concerns a.. Number 1 temperature measuring means (20a) is located (A), and the fuel region non-nucleated the made at intervals of degrees in a 180 being located dog 2. Number 1 temperature measuring means (20a) reactor inner through steam temperature at of. has an electric compressor for compressing refrigerant. Number 2 temperature measuring means (20b) is located (B1), and the fuel region nuclear the upper 90 made at intervals of degrees in a dog 4 being located. Top nuclear fuel unit significant thermal highest memory state in which are expected to generate two 4, the temperature difference from which melted mass is can be material toward the checks whether there. Number 3 temperature measuring means (20c) which has a central nuclear, and the fuel region is located (B2) made at intervals of degrees in a 90 located on a dog 4, number 2 temperature measuring means (20b) with the thereby confirm a nozzle kind also 45 is arranged. Number 3 temperature measuring means (20c) temperature temperature measuring means number 1 (20a) by comparing the measuring temperature of nuclear reactor (10) inside can be grasping the progress melt. Number 4 temperature measuring means (20d) is located (B3), and the fuel region nuclear the lower 90 made at intervals of degrees in a located on a dog 4, number 2 temperature measuring means (20b) the same direction is disposed at an. Number 4 temperature measuring means (20d) temperature temperature measuring means number 1 (20a) by comparing the temperature of reactor inner of molten progress stage. has an electric compressor for compressing refrigerant. Number 5 temperature measuring means (20e), and the fuel region non-nucleated the lower 90 is located (C) made at intervals of degrees in a located on a dog 4, number 3 temperature measuring means (20c) identical to the direction in which being located at the. Number 5 temperature measuring means (20e), and the fuel region and measuring temperature of (B) by comparing the measuring temperature of nuclear reactor (10) progression evaluated and thus the melt inside, melted mass is nuclear reactor (10) lower when delivered either if melted mass is can be checks whether there. According of the present invention number 1 embodiment also Figure 5 shows a on is shown measuring means. Number 1 in the embodiment of Figure 5 (a) such as a temperature measuring means in (20) constitution: it is possible to vary components of the pad. The pad to measure the temperature thermocouple (not shown) is provided, the more rigid the fixture pad (10) is attached to an exterior surface. Pad of Figure 5 (b) such as a cable (21) is connected to. Pad in the reactor (10) secured to a surface which the array may vary the manner in which the, stud bolt can be secure the. Other in the embodiment method welding pad in. the fixing member. Figure 6 shows a:an of the present invention number 2 embodiment also concerns a arrangement of temperature measuring means and, according to Figure 7 of the present invention number 2 embodiment on is shown measuring means. Number 2 in the embodiment "U" in wall (22) heat sink uses a, for classifying the temperature and gas flow guide (22a to 22e) has a function of instructing simulation of reactor (10) circumferentially provided. Guide (22) has a function of instructing simulation of reactor (10) which may surround only a portion of, may surround environment only 3/4. Guide (22) temperature measuring means in (20) is arranged are. Temperature measuring means in number 2 in the embodiment (20) equal to examples of the number 1 embodiment arrangement of said sensor. Figure 8 shows a measuring means on according of the present invention number 3 embodiment also concerns a arrangement of.. Nuclear reactor in number 3 in the embodiment (10) nuclear instrument within Roh into (50) is is inserted. nuclear instrument within Roh (50) has a function of instructing simulation of reactor (10) for temperature measurement at the neutron and inside a different located at about the same level a plurality of thermocouple (51) is arranged. nuclear instrument within Roh in drawing (50) the result of measurement of a standard file and attribute information of each file display or the like and delivery of constitution: dispensed with. Temperature measuring means (20) the nuclear instrument within Roh (50) thermo couple (51) located at about the same level corresponding to of wet liquid to flow down. In the embodiment in the same nuclear reactor (10) at the height temperature measuring means (20) is made at intervals of degrees in a 180 2 but individually placed at the, same of nuclear reactor (10) is disposed one by one at the height 4 may. Temperature measuring means (20) nuclear instrument within Roh temperature and measured (50) thermo couple (51) as measured in analyzing the compared to a left temperature, external temperatures, the unit significant of earning index same only nuclear reactor (10) can be recognize the state of the internal. nuclear instrument within Roh (50) of temperature measurements temperature measuring means (20) for measuring temperature of of, and/or. may be carried out simultaneously. Figure 9 shows a measuring means on according of the present invention number 4 embodiment also concerns a arrangement of.. Number 4 in the embodiment in temperature measuring means (20) is minimized number of. The temperature measuring means, and the fuel region (A) non-nucleated (20) without arranging a, nuclear, and the fuel region (B) 2 by the one-by-one temperature measuring means (20b, 20c, 20d) arranged only. Temperature measuring means at the height each (20b, 20c, 20d) made at intervals of degrees in a 180 is arranged the. Lower non-nucleated temperature measuring means, and the fuel region (C) the number 5 (20e) of two placing a 3 made at intervals of degrees in a 120, the significant fuel pellet nuclear unit which the transferred material is a configuration in which the initial melting prior nuclear reactor (10) since stacked-useless error is lower. Or more reactor inner by one of the three methods power plant according to the present invention by measuring surface temperature of a temperature and, according to of the lamp and cavity temperature of surface temperature nuclear reactor heat transfer surface with internal temperature and change variation time can be viewed. In addition upon rapid temperature changes inside surface temperature nuclear reactor via telemetry temperature variation within the can be directly. In addition the present invention according to the alarm unit is significant to 206 power plant when value temperature and nuclear reactor core can be deducing the surface temperature nuclear reactor, data on the state of the reactor inner information and/or is formed of a, nuclear reactor cooling effect upon input of coolant outside of estimating warrant. monitoring. Along surface facing nuclear reactor according to time accident significant ice cutter cuts an accident significant or soundness reactor vessel as mitigating strategy for carrying out the same are for preparing establishing of lightning countermeasure for aerial may provide a key for converting a mode. The present invention are the aforementioned in the embodiment to explain the by way of example, the present invention the limited not. The present invention is in the field of the typically encountered in having knowledge of various therefrom grow a embodiment of the present invention to cause same to be deformed an annealing process is it is possible to, the scope of protection of the present invention technical a claim should be is decided by the will. The present invention relates to a system for measuring the temperature of a nuclear reactor at a severe accident and a method for estimating the status of the nuclear reactor using the same. The system for measuring the temperature of a nuclear reactor according to the present invention includes temperature measuring units for measuring the temperature of the outer surface of the nuclear reactor. The temperature measuring unit includes a first temperature measuring unit which measures the temperature of the outer surface of the nuclear reactor at a first height; and a second temperature measuring unit which measures the temperature of the outer surface of the nuclear reactor at a second height different from the first height. COPYRIGHT KIPO 2016 Won in temperature measurement system to a user, said nuclear reactor outer surface to measure the temperature of which plurality of comprising temperature measuring means, said temperature detection mechanism can produce a, at the height number 1 nuclear reactor outer surface to measure the temperature of said temperature measuring means and number 1 ; other height and said number 1 number 2 at the height said nuclear reactor to measure the temperature of outer surface number 2 which comprising temperature measuring means, said nuclear reactor nuclear fuel is inserted therein, and the fuel region and said non-nucleated not located is positioned at a lower part of, and the fuel region non-nucleated nuclear fuel is inserted therein for a nuclear fuel including an area position, said temperature detection mechanism can produce said non-nucleated said nuclear fuel region, and the fuel region than the more rigid the fixture position more temperature measurement system. According to Claim 1, including said temperature detection mechanism can produce a thermocouple to characterized by nuclear reactor temperature measurement system. According to Claim 2, said temperature measuring means the pad type stud bolt method and welding method into one way impulses towards said nuclear reactor is attached to an exterior surface characterized by nuclear reactor temperature measurement system. Deleted According to Claim 1, said one or more temperature measuring means at least 2 at the same height in the reactor disposed in different directions characterized by nuclear reactor temperature measurement system. According to Claim 1, said nuclear, and the fuel region in a portion of said temperature measuring means provided different according to the corresponding is characterized by nuclear reactor temperature measurement system. According to one of Claim 1 to Claim 3, reactor inner end for insertion into said for neutron reactor inner said for measuring temperature and a different located at about the same level of at least 2 further includes nuclear instrument within Roh including thermocouple, said at least a portion of said temperature measuring means a height corresponding thermocouples nuclear instrument within Roh is provided characterized by nuclear reactor temperature measurement system. In method state recognizing as won, said nuclear reactor and to measure the temperature of outer surface; said reactor from said measured temperatures said internal steam temperature at, molten core unit significant melt core and progress state the horizontal pattern and the least one positions includes, said nuclear reactor nuclear fuel is inserted therein, and the fuel region and said non-nucleated not located is positioned at a lower part of, and the fuel region non-nucleated nuclear fuel is inserted therein for a nuclear fuel including an area position, and to measure the temperature of said, and the fuel region non-nucleated, said from said measured temperatures said reactor inner steam is decided by using a temperature method state recognizing the more rigid the fixture. Deleted According to Claim 8, connection with the other end of the reactor at least 2 at the height measures the temperature, a temperature measured compared to said progress status molten core characterized by a nuclear reactor state recognizing method. According to Claim 8, and the temperature nuclear fuel said made by plurality of directions, said flow direction melt core from said measured temperatures, enabling grasp of the more rigid the fixture state recognizing method. According to Claim 8, said nuclear reactor, and the fuel region is positioned at a lower part of said nuclear nuclear fuel is inserted therein not located, and the fuel region further comprises a lower non-nucleated, plurality, and the fuel region non-nucleated lower said level by measuring a in the direction of, said from said measured temperatures core melt method state recognizing the more rigid the fixture location. According to Claim 8, said nuclear reactor and determining the temperature inside an item to be; said said measured internal temperature and by comparing the temperature an outer face measuring said further of recording a nuclear reactor to characterized by including nuclear reactor state recognizing method.
