DUMMY RING APPARATUS FOR TURBINE

Hereinafter, with reference to the attached drawing a dummy ring device of the present invention preferred embodiment according to turbine detailed as follows.

Figure 2 shows a device according to one embodiment of the invention turbine dummy ring and therefore indicating cross-sectional drawing, Figure 3 a turbine dummy ring device indicating a second link sensors mounted thereon according to one embodiment of the invention are disclosed.

In Figure 3 the 2 as also to, said turbine dummy ring device (100) includes a dummy base portion (10), dummy middle part (20), and dummy sealing (30) having a predetermined wavelength. Wherein, said turbine dummy ring device (100) includes a rotor (R) each driven by pressure pressure and number 2 number 1 to number 1 and number 2 pressure turbine arranged along an axial direction of pressure turbine section partitioning substrate.

Specifically, a single casing (not shown) said turbine (not shown) is connected with a plurality of pressure medium-pressure turbine section (not shown) having a predetermined wavelength. I.e., casing (not shown) covers the entire turbine rotor (R) is adhered to the interior of, said medium-pressure turbine section (not shown) is a plurality of pressure along an axial direction of the rotor (R) are prevented. The, high-pressure turbine section each pressure, electrolyte, such as low pressure steam pressure range can be driven by different from each other. I.e., a high-pressure pressure pressure and said number 1 number 2/electrolyte, electrolyte/low pressure, or high pressure/low pressure such as two big pressure range different from each other.

For example, high pressure steam is introduced (R) having a front end of said high pressure turbine section is arranged on the rotor, a medium pressure turbine portion along the rear high pressure turbine, a low pressure turbine section and the like can be arranged sequentially. The, high pressure turbine section with a predetermined vapor pressure within high pressure turbine vanes and rotating blades for delivering energy to an entering the medium-pressure turbine section from and re-heated electrolyte pressure turbine part slightly therein. In addition, a medium-pressure turbine section with a predetermined vapor pressure within the pressure turbine vanes and rotating blades and for delivering energy to a medium pressure turbine part a medium emerging from a side of a low pressure turbine section into the other.

And, said dummy ring device (100) is between the high pressure turbine and a medium pressure turbine, a medium pressure turbine and low pressure turbine such as steam driven turbine section two pressures different from each other between the pressure range which is arranged to be partitioning, two pressures to reduce the leakage of steam between the medium-pressure turbine section each pressure turbine power generating efficiency can be increased.

On the other hand, said dummy base portion (10) is disposed thereon between said number 1 pressure turbine pressure turbine and said number 2. Wherein, said number 1 pressure turbine and high pressure turbine and a medium pressure turbine part said number 2 pressure turbine unit, a medium pressure turbine and a low pressure turbine section, high pressure turbine and a low pressure turbine section such as big pressure turbine unit is driven in the pressure range of two different from each other.

Specifically, said dummy base portion (10) has a rotor (R) between said outer periphery of said casing at the center within one casing from the inner periphery to the inner periphery of said casing for injecting holes into the ring-shaped member is moved to the outer adjacent, coupled to said [...]-like casing.

The, said dummy base portion (10) is divided into at least two arc-shaped, each divided [...]-like casing which is coupled to a rotor (R) sequence along the outer diameter of said according to surround completely can be, said dummy base portion (10) and said inner end of the outer peripheral surface of an annular space is formed between the rotor (R) is useful.

In addition, dummy said base portion (10) of the inner peripheral surface opposing an outer circumferential surface of said rotor (R) is arcuate base groove (11) formed of a plurality of axially, each arcuate base groove (11) to each dummy middle part (20) is mounted by said dummy base portion (10) the inner circumference of the plurality of dummy middle part (20) can be arranged axially multi-stage.

Specifically, a base groove (11) having a dovetail-shaped cross-section in a circumferential direction dummy base portion (10) formed to the inner peripheral surface faces radially outwardly from depression, dummy base portion (10) around a circumference of the continuously along an arc form combined with each other. The, said base groove (110) divided into both ends around a circumference of the arc-shaped dummy base portion (10) both ends of which are exposed through the, said dummy middle part (20) is exposed base groove (11) both ends around a circumference of the flow through one of the insertion and withdrawal of the slide can be attached or detached disclosed.

And, said base groove (11) is said dummy base portion (10) formed of a plurality of the inner circumference, each of a predetermined vertically spaced apart along the axial direction are formed on the base.

Wherein, said dummy base portion (10) is a one-piece member has a ring shape through centrifugal casting a complete predetermined angle can be divided shaved after prepared by the number, the parts accuracy and productivity can be improved.

On the other hand, said dummy middle part (20) is in said plurality each dummy base portion (10) and to cover the inner peripheral surface of said predetermined ratio home bases (11) then removes the foreign substance.

Specifically, said dummy middle part (20) is said dummy base portion (10) from the inner periphery of said outer circumference of said rotor (R) between two or more dummy base portion (10) adjacent the inner periphery of the outer ring-shaped member is moved to combined with each other.

The, said each dummy middle part (20) is divided into at least two arc-shaped, each divided [...] base groove (11) coupled sequentially along, said dummy base portion (10) of the inner circumference and said outer circumference of the rotor (R) can be to surround completely, said dummy middle part (20) and said rotor (R) inner end of an annular space is formed between a light detector.

Wherein, said dummy middle portion (20) a centrifugal flow through casting a complete ring-shaped apparatus of member after prepared by the number predetermined angle can be divided shaved, the parts accuracy and productivity can be improved.

In addition, dummy said middle part (20) is said dummy base portion (10) base formed groove (11) corresponding to the number of possible is equipped at a plurality, one dummy middle part (20) is said dummy base portion (10) of the inner peripheral surface of the base groove (11) of number of operating on the basis of a segmented seal and disposed therein.

I.e., said dummy middle part (20) all base groove (11) dummy middle portion (20) to the insertion, said dummy base portion (10) can be completely cover steel plate. The, said each dummy middle part (20) is more preferably coated with the same standard replacement effecting convenience. For example, dummy said base portion (10) axially 2 one base groove (11) into space, said dummy middle part (20) is one base groove (11) corresponding to dummy base portion (10) compared with the inner periphery of the blocking member has one front, other base groove (11) corresponding to dummy base portion (10) manufactured with forming the rear inner periphery of the blocking member has the other (20c) can be made. The, two dummy middle part (20) is 2 one base groove (11) is fitted, said dummy base portion (10) can be completely cover steel plate.

In addition, dummy said middle part (20) is said base groove (11) corresponding to a dovetail-shaped cross-section around a circumference of the base portion (20a) on said base portion (20a) radial inner end cover body portion (20b) having a predetermined wavelength.

Specifically, said cover body portion (20b) is said base portion (20a) equipped with a base groove (11) that is adjacent the dummy base portion (10) while covering the inner peripheral surface of form a, another adjacent dummy middle part (20c) formed in contact with the cover body of extended axially to combined with each other.

I.e., mounted within bases groove cover body portion (20b) has a front end or a rear end or both ends mounted another adjacent base groove cover body portion (20c) outward depending on said dummy base portion (10) of entire axial length and a base groove (11) preferably is set to be the axial length.

The, said each dummy middle part (20) equipped with said dummy base portion (10) steel plate along the periphery of the rotor (R) completely cover the direct exposure can be bearing for the vapor flow.

I.e., said steam flow along the periphery of the rotor (R) due to erosion or wear damage this dummy middle part (20) being concentrated on the inner peripheral surface of the cam element, large expensive precision components stacks base portion (10) small erosion patch dummy middle part (20) simply only chair of device can be improved by maintenance of convenience and mirror number.

In addition, said cover body portion (20b) on said rotor (R) is attached along the opposing arcuate mounting groove (21) formed therein.

The, said mounting groove (21) is said cover body portion (20b) formed radially from the inner peripheral surface toward the outer depression, said cover body portion (20b) continuously along an arc form around a circumference of the combined with each other.

Wherein, said mounting groove (21) is one cover body portion (20b) may be formed but one of the, said cover body portion (20b) of said cover body portion (20b) the axial length of the one cover body portion (20b) formed at least two predetermined time interval lapses disclosed. I.e., said mounting groove (21) is said cover body portion (20b) multi-stage can be formed along the inner circumference, to each of a predetermined vertically spaced apart along the axial direction and is formed preferably.

The, said mounting groove (21) divided into both ends around a circumference of the arc-shaped dummy middle part (20) which are exposed through the outer corner, said dummy sealing (30) is exposed mounting groove (21) at both ends around a circumference of the flow through one of the insertion and withdrawal of the slide can be attached or detached disclosed. Wherein, said mounting groove (21) is a cross-sectional dovetail shape number 1 with circumferential mounting groove (21a) on, said number 1 mounting groove (21a) formed mounting groove recessed radially outwardly from the inner end of central line number 2 (21b) preferably including.

On the other hand, said dummy sealing (30) includes said mounting groove (21) coupled to said slide (R) fluid flow flowing along the periphery of the rotor seals.

Specifically, said dummy sealing (30) includes said dummy middle part (20) from the inner periphery of said outer circumference of said rotor (R) between two or more dummy middle portion (20) adjacent the inner periphery of the outer ring-shaped member is moved to combined with each other.

And, said dummy sealing (30) is divided into at least two arc-shaped, each divided [...] mounting groove (21) which is coupled to a rotor (R) sequentially along said according to surround outer fully can be. The, said dummy sealing (30) a centrifugal flow through casting a complete ring-shaped apparatus of member after prepared by the number predetermined angle can be divided shaved, the parts accuracy and productivity can be improved.

On the other hand, said dummy sealing (30) one dummy middle part (20) mounted one at plurality of dummy middle portion (20) axially through the multi-stage can be arranged, one dummy middle part (20) and arranged axially mounted a plurality each stage permitting, said rotor (R) and said dummy middle part (20) of the flow of fluid between the shilling it will do be.

Specifically, said dummy sealing (30) has a dovetail-shaped mounting groove is provided to instantly said number 1 (21a) insertion and slide mounting projection (30a) on, said guide (30a) radial inner coupled to a sealing body (30b) having a predetermined wavelength.

The, said sealing body (30b) the inner peripheral surface of a plurality of labyrinth includes a backiron (31) is the capillary, a backiron (31) end and rotor (R) [kyo axial actions of a fluid through a gap between change through steam flow along the periphery of the rotor (R) (throttling process) and pressure of which can be reduced in the, each pressure turbine section through efficiency can be improved.

As well as, said sealing body (30b) [pu [su frame composed of an aggregate of the inner peripheral surface of flexible brush sealing or flexible sheet composed of an aggregate of (bristle) with sealing lip permitting and the like, can be added to the unrestricted and enables this additional seal structure, said labyrinth includes a backiron (31) applied to replace a predetermined time interval lapses disclosed.

Wherein, said number 2 mounting groove (21a) is said dummy sealing (30) installation protrusion (30a) elastic pressure radially inwardly circular knitting machine (29) are interposed preferably.

Specifically, said elastic member (29) said number 2 has a mounting groove (21a) corresponding to the axial length of the axial extent of the guide with said arcuate re-with leaf spring (30a) mounting groove of said number 2 and its outer end (21a) can be inserted between.

The, groove without means mounted along said number 2 (21a) can be fixed to, said dummy sealing without axial play (30) toward the inside radially elastic force can be [...] number.

The, said elastic member (29) is mounted groove said number 2 (21a) having a curvature exceeds the curvature of one or more C-shaped elastic section and is formed preferably. I.e., said number 2 mounting groove (21a) is filled with the crossbeam leaf spring re- undulations, C-shaped leaf spring authorization can be inserted such that stack placing circumferentially.

Wherein, said elastic member (29) is said guide (30a) radial pressing the outside grade radially inward circular knitting machine, sealing body portion (30b) of a backiron labyrinth to an outer (31) of said rotor (R) sealing structure is uniform from the outer circumference of the gap can be disposed to each. The, fluid flow along the periphery of the rotor (R) said flow sealing 1308. stably.

On the other hand, mounting groove said number 1 (21b) includes said guide (30a) of radial thickness (a1, a2) predetermined number 1 corresponds to the clearance interval (c1, c2) from expands radially and is formed preferably.

I.e., said number 1 mounting groove (21b) has a radial thickness of said guide (b1, b2) (30a) (a1, a2) of radial thickness exceeds that has been, said guide (30a) to a radial thickness of said number 1 (a1, a2) clearance interval (c1, c2) can be made by brazing.

Specifically, said number 1 mounting groove (21b) has a dovetail-shaped narrow radial inner end radially outer end side is equipped axially extended shape, said guide (30a) also a radial inner end radially outer end side the same dovetail-shaped narrow axially extended shape combined with each other.

The, said guide (30a) has a radially inner end of the narrow portion of radial thickness (a1, a2) (a2) on radial thickness, the radial thickness of the outside only side radially expanding sense understand (a1) preferably by cancer.

And, said number 1 mounting groove (21b) has a radially inner end of the narrow portion of radial thickness (b1, b2) (b2) on radial thickness, the radial thickness of the outside only side radially expanding sense understand (b1) preferably by cancer.

I.e., said number 1 mounting groove (21b) has a radially inner end of said narrow portion is radial thickness (b2) guide (30a) radial inner end (a2) number 1 from the narrow portion of radial thickness (c2) combined with each other in such a way that clearance interval corresponds to.

And, said number 1 mounting groove (21b) is the outside only side portion of said radial thickness is wide radial guide (b1) (30a) (a1) number 1 from the outside only side portion of wide radial clearance interval corresponds to such a way that the radial thickness (c1) combined with each other.

The, said dummy sealing (30) is mounted said number 1 groove (21b) by radially outer and inner toward engagement can be flow circular knitting machine.

I.e., said guide (30a) radial the outside only side portion having a wide groove mounting said number 1 (21b) in the inserted state of said wide portion of the radial the outside only side guide (30a) mounting groove on said number 1 (21b) corresponding to said number 1 (c1) clearance is formed to the clearance interval between, said dummy middle part (20) on the inner peripheral surface and said sealing body portion (30b) between the outer peripheral surface of said number 1 (c2) clearance interval corresponding to and then can be formed.

The, said dummy sealing (30) said number 1 has a mounting groove (21b) and the cylinder number 1 (c1) clearance interval, said dummy middle part (20) radial inner end clearance interval number 1 (c2) interval corresponding to a radial circular knitting machine can be moved a small one.

On the other hand, the rotor (R) said clearance interval (c1, c2) said number 1 is set to a value preferably correspond to the maximum eccentric vibration by. I.e., said number 1 mounting groove (21b) and the cylinder number 1 clearance interval (c1), said dummy middle part (20) radial inner end number 1 (c2) clearance interval during said dummy sealing (30) radial circular knitting machine movement is set to a small one of said relayed maximum eccentric vibration number correspond to the substrate.

The, said rotor (R) (R) at a maximum eccentric vibration distance from said rotor stop or slow rotation state enforcing said rotor (R) high-speed rotation state enforcing the rotary path at a big output control the rotary path.

Specifically, (R) said rotor is unavoidable processing or deviation of kinetic energy is provided to the vibration during the rotation steam path supplying steam control valve which, when the rotary path and stop/slow, high speed operation is equal to the rotary path output control is present. And, said stop/slow rotate and apparatus and method for rotor (R), said dummy sealing (30) includes a backiron labyrinth of (31) between the outer peripheral surface of the rotor (R) from the varied spacing with each other.

The, said labyrinth includes a backiron (31) into a spacing between the rotor (R) from excessively, to fluid flow along the periphery of the rotor (R) (R) amount of the vibration of increased or noise resulting overcompression rotor for a type, outer circumferential surface of the rotor (R) includes a backiron labyrinth (31) is a wear is narrow and without causing damage equipment disclosed.

In addition, said labyrinth includes a backiron (31) from the distance between the rotor (R) from excessively increasing, the increased flow and pressure along the periphery of the rotor (R) each of efficiency be reduced pressure turbine is bigger disclosed.

The, said dummy sealing (30) is said elastic member (29) in an to circular knitting machine, said rotor (R) corresponding to maximum eccentric vibration distance intervals can be moved are matched clearance is number 1, said flow along the periphery of the rotor (R) such that fluid pressure corresponding to said dummy sealing (30) can be automatically controlling radial location of.

I.e., said labyrinth includes a backiron (31) end and a rotor part (R) would increase the fluid pressure between said dummy sealing (30) is moved radially outward from the circular knitting machine, said labyrinth includes a backiron (31) end and between said rotor (R) the fluid pressure toward a surface of the dummy sealing surfaces (30) can be moved to their radially inwardly.

In this way, said dummy sealing (30) of the rotor (R) caller within a maximum deviation of the rotary path corresponding to high and low in amount according to the change in the fluid pressure outer peripheral side of the rotor (R) dummy sealing moved circular knitting machine (30) and rotor (R) system for automatically controlling the gap between contact wear damage due to excessive clearance of fluid leaking due to minimized and non clearance, stabilized by fluid flow through a gap sealing device performance and durability can be improved.

On the other hand, said each dummy middle part (20) of the cover body section (20b) is provided with an axial portion along the arcuate link [...] dummy middle and a rotating part (22) is on an, disposed axially adjacent a pair of dummy middle part (20) is said link [...] (22) facing each other of a pair disposed in communication with the inserted connecting member (40) is connected by a preferably.

I.e., said dummy base portion (10) of a front side base groove (11) dummy middle portion coupled to (20) and a cover body (20b) in the axial direction of the trailing edge is link [...] (22) is formed, said dummy american base department (10) base groove at the backside of dummy middle part (20c) at the front end of the cover body is axial link [...] (22c) formed therein.

And, front side dummy middle part (20) of links [...] (22) the cover body portion (20b) that has been formed arcuate depression is provided on the axial output in the, backside dummy middle part (20c) link [...] (22c) axial front end cover body rearward side is a portion facing each other and arranged for communication can be.

The, disposed facing each other a pair of link [...] (22, 22c) on the upper front side of said connecting member (40) introduced at the axial forward side portion, a pair of link [...] disposed facing each other (22, 22c) on the upper rear side of said connecting member (40) can be inserted axially behind the side portion.

I.e., said second link member (40) axially behind a pair of links and ivories [...] (22, 22c) in communication with the inserted, another dummy middle part (20) can be a connection between.

In this way, said dummy base portion (10) on an outer surface of said each dummy middle part (20) is covered by 1 difference, dummy middle portion (20) a space between the connecting member (40) is covered by the steam and flow along the periphery of the rotor 2 difference (R) dummy base portion (10) can be completely blocked direct contact with the liver.

On the other hand, said second link member (40) includes said each link [...] (22, 22c) corresponding to a communication space between base ring it is possible to (40c) on, said base ring (40c) extending radially from the axial both ends of cover wing portion (40a, 40b) preferably including.

Specifically, a pair of link [...] said communication space is disposed facing each other (22, 22c) and the connection between the means an interior space, said base ring (40c) is a communication space corresponding to the axial length of the circumferential ends of said belt absence thickness can be formed.

And, said cover wing portion (40a, 40b) is said base ring (40c) from both ends in the axial direction of said link [...] (22, 22c) and corresponds to the thickness direction thereof is the direction of it is possible to, axial grooves spaced-apart inner end to said base ring supported circular knitting machine (40c) on the edge of the connected thereto.

I.e., said second link member (40) said cover includes a wing portion (40a, 40b) spaced-apart axial grooves are matched to supported arcuate 'some' shaped re-with leaf spring preferably coated with. As well as, said cover wing portion (40a, 40b) reinforced between coil so as to be pivotably disposed in the form of a mini spring also varies.

The, said base ring (40c) is in place along said communication space, said cover wing portion (40a, 40b) is said link [...] (22, 22c) can be between the facing surfaces of the cover.

Wherein, said link [...] (22, 22c) from the main-facing surface between a pair of link [...] (22, 22c) has opposing surfaces and means in, front side link [...] (22) axial back rear link [...] (22c) by axial front preferably understood to means.

And, said base ring (40c) and the axial length of said cover wing portion (40a, 40b) and a communication space between the inner end of said interval is less than the axial length of the is equipped, said cover wing portion (40a, 40b) and a communication space exceeds the axial length of the intervals between the outside end of the combined with each other.

I.e., said cover wing portion (40a, 40b) is said base ring (40c) which is connected to a inner end surface thereof and an axial outer end portion from the centrally located toward V preferably coated with user.

The, said second link member (40) is inserted into said communication space, said cover wing portion (40a, 40b) the outside end is narrower in each opposing said axial spacing can be firmly adhered onto the surface to deform resiliently.

The, said second link member (40) said link [...] axial both ends (22, 22c) can be accurately maintain close contact, said dummy middle part (20, 20c) can be stably closed gap between.

I.e., said link [...] (22, 22c) axially deform resiliently couple (40) is inserted, arranged axially multistage dummy middle part (20) and integrally linked with the dummy middle part (20) can be stably closed gap between said dummy middle part (20, 20c) liver steam inlet and said dummy base portion through a gap (10) can be minimally destructive wear/erosion of the, number article sealing performance and durability can be further improved.

On the other hand, in the embodiment according to turbine device of the present invention dummy ring 4a and 4b also includes other indicating cross-sectional drawing also are disclosed. The second link member in other in the embodiment (240) [...] a number one in the embodiment above-mentioned the basic configuration the same result into configuration description specifically dispensed to each other.

Also 4a to 4b as also in, said second link member (240) is at a temperature higher than said predetermined number 1 cover wing portion (240a, 240b) and said base ring (240c) is coated with said connection angle is increased to preferably [...] is modified to type.

Specifically, dummy said middle portion (220, 220c) between the base portion and the base of said groove, said dummy base portion (210) from the inner peripheral surface of said dummy middle portion (220, 220c) fan-out part of the cover body and at the same time space formed therein. The, rotation of said turbine rotor (R) each step of selectively actuating said each dummy middle portion in response to flow of a fluid amount or amount (220, 220c) clearance in a radial direction can be moved.

The, said second link member (240) is said cover wing portion (240a, 240b) is radial thickness of said link [...] (222, 222c) coated with preferably has a radial thickness of less than, said second link member (240) is said each link [...] (222, 222c) communicating with said each dummy middle part even in the inserted state of the (220, 220c) clearance in a radial direction can be moved.

Wherein, said predetermined distance said type [...] heated returned to the alloy having properties such that the dispersing medium, nickel (Ni)/titanium (Ti) alloy, copper/zinc alloy, gold/copper/zinc alloy having a cured resin layer can be of a kind.

Specifically, said connecting member (240) is a low temperature of said number 1 temperature below said cover wing portion (240a, 240b) and said base ring (240c) number 1 angle (θ 1) is maintaining connection angle is, normal higher than or equal to said predetermined number 1 number 2 number 1 angle (θ 1) angle exceeds a temperature conditions in connected to preferably coated with angle (θ 2) modified.

The, temperature said turbine driving in an initial state is the normal driver beyond said number 1, said rotor (R) which can be rotated at the time of the high-speed means of a steady-state temperature, turbine can be empirically derived and set according to the standard.

I.e., said second link member (240) is thin cover each said wing portion (240a, 240b) interval between each cover the outside end of said wing portion (240a, 240b) hereinafter to maintain intervals between the inner end of each cover wing portion (240a, 240b) of said each link [...][...] (222, 222c) from the opposing sides of the fixing may have.

And, said second link member (240) number 1 is the temperature when heated, said wing portion of each cover (240a, 240b) interval between each cover the outside end of said wing portion (240a, 240b) intervals between the inner end of which modified to exceed, each cover wing portion (240a, 240b) of said each link [...][...] (222, 222c) can be the opposite surface of contact.

The, cover each said wing portion (240a, 240b) the outside end of said link [...] (222, 222c) on opposing sides of the other state and at the same time from said each dummy middle portion (220, 220c) can be translated radially is provided to independently.

And, each cover said wing portion (240a, 240b) the outside end of said link [...] (222, 222c) contact the opposite surface of said each dummy middle portion (220, 220c) is a mutually opposite axially pressing radial location can be fixed.

In this way, said second link member (240) is set at a temperature higher than the axially extended to provide a modified, initial thin driving turbine connecting member (240) and link [...] (222, 222c) is play through each dummy middle portion (220, 220c) rotor (R) and radial flow is provided to independently from dummy sealing (230) can be adjusted between maximum gap.

The, maximum gap is said dummy middle portion (220, 220c) [...] to dummy sealing (230) is radially outward travel state in dummy sealing (230) and rotor (R) gap between big.

Specifically, rotation of the rotor (R), up pressure/flow of fluid in response to each dummy middle portion (220, 220c) moved radially inwardly and outwardly circular knitting machine, a state of plastic deformation in accordance with the wear of a backiron labyrinth/dummy sealing (230) is aligned can be disposed.

I.e., each dummy sealing (230) includes a backiron labyrinth of inner surfaces in accordance with the state of plastic deformation or/dummy sealing (230) can be moved radially outwardly circular knitting machine maximum clearance distance can be adjusted.

And, said turbine normal driven so that said connecting member (240) is when heated, the connecting member (240) and link [...] (222, 222c) fixing the number and volatile liver, dummy middle portion (220, 220c) support and fixed axial fixing is pressed, said dummy sealing (230) and rotor (R) in maximum gap between fixed, dummy sealing (230) which is circular knitting machine modified rotor (R) the flow of fluid passing along the surface stably number 1308.

I.e., when the turbine rotor (R) in the axial direction of multi-stage arranged plurality of dummy middle portion (220, 220c) is response to fluid pressure radially to the heating chamber where each are independently self-aligning can be, heated by a fluid in a normal operation of the turbine connecting member (240) deforming an axially extended according each dummy middle portion (220, 220c) into a care so that axial position fixing and maintaining sealing performance can be improved article number.

As the device, the present invention refers to each in the embodiment has the above-mentioned limited to, without the present invention of the present invention claim allowable at a person with skill in the art and is provided to the in embodiment modified by possible, these modified embodiment of the present invention includes ranges.