CN213041416U

CN213041416U - Steam turbine adjusting stage steam temperature measuring device

Info

Publication number: CN213041416U
Application number: CN202022420492.3U
Authority: CN
Inventors: 郭维
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-04-23
Anticipated expiration: 2030-10-27

Abstract

The utility model discloses a steam turbine regulation level steam temperature measuring device, including steam temperature measuring device body, steam temperature measuring device body includes that outer cylinder protective case, cover establish the high-pressure separate lagging of the high-pressure inner cylinder of steam turbine and movable sleeve on inner cylinder protective case on outer cylinder protective case, fixed cover establish on outer cylinder protective case and establish, and inner cylinder protective case's bottom is seted up flutedly, and outer cylinder protective case assembles in the recess, the last movable sleeve of outer cylinder protective case is equipped with a plurality of elastic seal circle that are located the recess, two adjacent elastic seal circle in close contact with, the outside of elastic seal circle and the inner wall movable contact of recess. The utility model relates to a rationally, be convenient for extrude its leakproofness of adjustment to elastic sealing ring according to actual need, prolong elastic sealing ring's life, and be convenient for realize fast that work efficiency is improved to elastic sealing ring's dismouting change operation, satisfy the user demand.

Description

Steam turbine adjusting stage steam temperature measuring device

Technical Field

The utility model relates to a steam temperature measurement equipment technical field especially relates to a steam turbine regulation level steam temperature measuring device.

Background

According to whether the stage flow area changes with the size of the load or not, the steam turbine stage can be divided into an adjusting stage and a non-adjusting stage, for a multistage steam turbine, the multistage steam turbine is a first acting stage of the steam turbine, the flow area of the multistage steam turbine can change with the change of the load due to partial air intake, the multistage steam turbine is called an adjusting stage, the adjusting stage steam temperature measuring device is used for measuring the steam temperature, when the multistage steam turbine is used for measuring, the error between the structural measurement value of the adjusting stage steam temperature measuring device and the actual operation value of a unit is large, steam between the interlayer of the high-pressure inner cylinder and the outer cylinder easily enters the temperature measuring protection device, the monitoring of the steam temperature after the steam turbine adjusting stage and the selection of the starting mode of the unit are not facilitated, and the application: 201920969883. X discloses a temperature measuring device for steam turbine regulating-stage rear steam temperature, which relates to a temperature measuring device and solves the problems that the existing regulating-stage rear steam temperature measuring device has larger error and the steam between the high-pressure inner cylinder interlayer and the high-pressure outer cylinder interlayer easily enters the temperature measuring protection device, the lower part of an inner cylinder protection sleeve is fixedly connected to the high-medium-pressure inner cylinder of the steam turbine, the lower end of the inner cylinder protection sleeve is provided with a central groove, outer sealing lamination sheets and inner sealing lamination sheets are alternately arranged in the groove of the inner cylinder protection sleeve, a pressure ring is fixedly arranged on the lower end surface of the inner cylinder protection sleeve, the upper part of the outer cylinder protection sleeve sequentially penetrates through the pressure ring and the sealing lamination sheets to be assembled in the groove of the inner cylinder protection sleeve, the upper part of the outer cylinder protection sleeve and the lower part of the inner cylinder protection sleeve are hermetically communicated through the outer sealing lamination sheets and the inner sealing lamination sheets, the, the temperature measuring device is used for measuring the temperature of steam after the steam turbine regulating stage.

Although the patent solves the problems that the steam temperature measuring device has larger error after the adjusting stage, and the steam between the interlayer of the high-pressure inner cylinder and the high-pressure outer cylinder easily enters the temperature measuring protection device; but it still has some not enough, and its sealing lamination exists not be convenient for carry out the shortcoming of extrusion regulation to the leakproofness according to actual need, and sealing lamination uses for a long time, easily because of factors such as ageing, causes the inner wall laminating with the recess that can not be fine, and then reduces the leakproofness, and has the shortcoming that is not convenient for carry out the dismouting change fast to sealing lamination, can not satisfy the user demand, therefore we have proposed a steam turbine and have adjusted level steam temperature measuring device and be used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a steam turbine regulating-level steam temperature measuring device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a steam turbine regulating-level steam temperature measuring device comprises a steam temperature measuring device body, wherein the steam temperature measuring device body comprises an outer cylinder protective sleeve, an inner cylinder protective sleeve sleeved on the outer cylinder protective sleeve, a steam turbine high-medium pressure inner cylinder fixedly sleeved on the inner cylinder protective sleeve, and a high-pressure sleeve separating plate movably sleeved on the inner cylinder protective sleeve, a groove is formed in the bottom end of the inner cylinder protective sleeve, the outer cylinder protective sleeve is assembled in the groove, a plurality of elastic sealing rings positioned in the groove are movably sleeved on the outer cylinder protective sleeve, each elastic sealing ring is composed of two semicircular sealing rings, one side, close to each other, of each two semicircular sealing rings forming the same elastic sealing ring is in close contact, two adjacent elastic sealing rings are in close contact, the outer sides of the elastic sealing rings are in movable contact with the inner wall of the groove, and the bottom end of the inner cylinder protective sleeve is in movable, the two sides of the top of the cover plate are fixedly provided with rectangular blocks, the inner cylinder protective sleeve is movably sleeved on the two rectangular blocks, the top of the rectangular block positioned on the right side in the two rectangular blocks is provided with a first rectangular hole, the right side bottom of the inner cylinder protective sleeve is provided with a clamping groove, a clamping block is movably clamped in the clamping groove, the left side of the clamping block extends into the first rectangular hole, two positioning rods are fixedly arranged between the two side inner walls of the first rectangular hole, the two positioning rods are slidably sleeved with the same L-shaped moving rod, the left side inner wall of the L-shaped moving rod is fixedly connected with the left side of the clamping block, the right side of the cover plate is provided with a first rectangular groove, a pushing block is slidably sleeved in the first rectangular groove, the bottom of the L-shaped moving rod extends into the first rectangular groove, the right end of the L-shaped moving rod is fixedly connected with the left side top of, the bottom movable contact who is located the elastic seal circle of below in a plurality of elastic seal circle has the stripper plate, the stripper plate movable sleeve is established on outer cylinder protective case, the bottom fixed mounting of stripper plate has two push rods, outer cylinder protective case is located between two push rods, the apron slip cap is established on two push rods, the bottom fixed mounting of two push rods has same movable plate, the bottom of apron is rotated and is installed first sleeve pipe, first sleeve pipe is established on outer cylinder protective case, movable plate threaded sleeve is established on first sleeve pipe, the first sheathed tube outside is four holding rods of rectangle fixed mounting.

Preferably, two second rectangular grooves are formed in the bottom of the inner cylinder protective sleeve, the inner walls of the second rectangular grooves are in movable contact with the outer sides of the corresponding rectangular blocks, and the second rectangular grooves on the right side in the two second rectangular grooves are in cross communication with the clamping grooves.

Preferably, a through hole is formed in the inner wall of the top of the first rectangular groove, and the front side inner wall and the rear side inner wall of the through hole are respectively in sliding connection with the front side and the rear side of the L-shaped movable rod.

Preferably, the circular port has been seted up at the top of apron, and outer cylinder protective case is located the circular port, sets up the ring channel that the bottom set up for the opening on the inner wall of circular port, and fixed cover is equipped with the bearing in the ring channel, the inboard outside fixed connection with first sleeve of inner circle of bearing.

Preferably, a threaded hole is formed in the top of the moving plate, an external thread is arranged on the outer side of the first sleeve, and the internal thread is in threaded connection with the threaded hole.

Preferably, two second rectangular holes are formed in the top of the cover plate, and the inner walls of the second rectangular holes are in sliding connection with the outer sides of the corresponding push rods.

Preferably, the inner wall of the first sleeve is not in contact with the outside of the outer cylinder protective sleeve.

Preferably, two sliding holes are formed in one side of the L-shaped moving rod, and the inner wall of each sliding hole is connected with the outer side of the corresponding positioning rod in a sliding mode.

Compared with the prior art, the beneficial effects of the utility model are that:

by matching an outer cylinder protective sleeve, a high-medium-pressure inner cylinder of a steam turbine, a high-pressure sleeve separating plate, an inner cylinder protective sleeve, a groove, elastic sealing rings, a cover plate, a rectangular block, a clamping groove, a clamping block, a holding rod, an L-shaped movable rod, a positioning rod, a first rectangular groove, a pushing block, a spring, an extrusion plate, a pushing rod and a movable plate with the first sleeve, when the elastic sealing rings need to be extruded to adjust the sealing property, the holding rod is rotated in the forward direction to drive the first sleeve to rotate, the first sleeve rotates and drives the movable plate to move upwards, the movable plate drives the extrusion plate to move upwards through the two pushing rods and extrude an elastic sealing ring at the lowest part, and the elastic sealing ring at the lowest part generates extrusion force on the elastic sealing ring which is contacted with the elastic sealing ring, so that the two adjacent elastic sealing rings generate upward extrusion force, when the elastic sealing ring needs to be replaced, the push block is pushed leftwards to slide leftwards in the first rectangular groove and compress the spring, the push block drives the fixture block to move out of the clamping groove through the L-shaped movable rod, then the cover plate is pulled downwards to drive the two rectangular blocks to move out of the corresponding first rectangular grooves respectively, the cover plate drives the extrusion plate to move downwards from the groove through the bearing, the first sleeve, the movable plate and the two push rods, then the elastic sealing ring is pulled downwards to move out of the groove, the semicircular sealing rings are pulled towards two sides to separate from the outer cylinder protective sleeve, a new elastic sealing ring consisting of the two semicircular sealing rings is sleeved on the outer cylinder protective sleeve, the elastic sealing ring is moved upwards into the groove, and the outer side of the elastic sealing ring is in close contact with the inner wall of the groove, upwards promote the apron and drive two rectangular blocks upwards and move respectively to the first rectangular channel that corresponds in, the stripper plate upwards move to the recess and with the bottom in close contact with of the elastic sealing circle that is located the below, relax the thrust to the ejector pad immediately, the elasticity of spring drives the fixture block through ejector pad and L shape carriage release lever and moves right to the draw-in groove in this moment, and then makes the apron fixed, has accomplished the installation and has changed the operation.

The utility model relates to a rationally, be convenient for extrude its leakproofness of adjustment to elastic sealing ring according to actual need, prolong elastic sealing ring's life, and be convenient for realize fast that work efficiency is improved to elastic sealing ring's dismouting change operation, satisfy the user demand.

Drawings

Fig. 1 is a schematic view of a partial cross-sectional structure of a steam temperature measuring device of a steam turbine adjusting stage according to the present invention;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

fig. 3 is a top view of the elastic sealing ring of the steam turbine regulating-stage steam temperature measuring device provided by the utility model.

In the figure: 100 outer cylinder protective sleeve, 101 steam turbine high-medium pressure inner cylinder, 102 high-pressure sleeve separating plate, 103 inner cylinder protective sleeve, 1 groove, 2 elastic sealing ring, 3 cover plate, 4 rectangular block, 5 clamping groove, 6 clamping block, 7 holding rod, 8L-shaped movable rod, 9 positioning rod, 10 first rectangular groove, 11 pushing block, 12 spring, 13 extrusion plate, 14 pushing rod, 15 movable plate and 16 first sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a steam turbine regulation level steam temperature measuring device comprises a steam temperature measuring device body, the steam temperature measuring device body comprises an outer cylinder protective sleeve 100, an inner cylinder protective sleeve 103 sleeved on the outer cylinder protective sleeve 100, a steam turbine high-medium pressure inner cylinder 101 fixedly sleeved on the inner cylinder protective sleeve 103, and a high-pressure sleeve separating plate 102 movably sleeved on the inner cylinder protective sleeve 103, a groove 1 is arranged at the bottom end of the inner cylinder protective sleeve 103, the outer cylinder protective sleeve 100 is assembled in the groove 1, a plurality of elastic sealing rings 2 positioned in the groove 1 are movably sleeved on the outer cylinder protective sleeve 100, each elastic sealing ring 2 comprises two semicircular sealing rings, one side of each two semicircular sealing rings forming the same elastic sealing ring 2, which are close to each other, is in close contact with each other, the outer sides of the two adjacent elastic sealing rings 2 are in movable contact with the inner wall of the groove 1, the bottom end of the inner cylinder protective sleeve 103 is movably contacted with a cover plate 3, both sides of the top of the cover plate 3 are fixedly provided with rectangular blocks 4, the inner cylinder protective sleeve 103 is movably sleeved on the two rectangular blocks 4, the top of the rectangular block 4 positioned on the right side in the two rectangular blocks 4 is provided with a first rectangular hole, the right side bottom of the inner cylinder protective sleeve 103 is provided with a clamping groove 5, a clamping block 6 is movably clamped in the clamping groove 5, the left side of the clamping block 6 extends into the first rectangular hole, two positioning rods 9 are fixedly arranged between the two inner side walls of the first rectangular hole, the two positioning rods 9 are slidably sleeved with the same L-shaped moving rod 8, the left inner wall of the L-shaped moving rod 8 is fixedly connected with the left side of the clamping block 6, the right side of the cover plate 3 is provided with a first rectangular groove 10, a push block 11 is slidably sleeved in the first rectangular groove 10, the bottom of the L-shaped moving rod 8 extends into the first rectangular groove 10, a spring 12 is fixedly arranged between the left side of the push block 11 and the inner wall of the left side of the first rectangular groove 10, the bottom of the elastic sealing ring 2 positioned at the lowest position in the plurality of elastic sealing rings 2 is movably contacted with an extrusion plate 13, the extrusion plate 13 is movably sleeved on the outer cylinder protective sleeve 100, two push rods 14 are fixedly arranged at the bottom of the extrusion plate 13, the outer cylinder protective sleeve 100 is positioned between the two push rods 14, a cover plate 3 is slidably sleeved on the two push rods 14, the bottom ends of the two push rods 14 are fixedly provided with a same movable plate 15, the bottom of the cover plate 3 is rotatably provided with a first sleeve 16, the first sleeve 16 is sleeved on the outer cylinder protective sleeve 100, the movable plate 15 is sleeved on the first sleeve 16 in a threaded manner, and four holding rods 7 are fixedly arranged outside the first sleeve 16 in a rectangular manner, so that the elastic sealing rings 2 can be extruded and the tightness, the service life of the elastic sealing ring 2 is prolonged, the elastic sealing ring 2 can be conveniently and quickly disassembled and replaced, the working efficiency is improved, and the use requirement is met.

In the utility model, the bottom of the inner cylinder protective sleeve 103 is provided with two second rectangular grooves, the inner walls of the second rectangular grooves are movably contacted with the outer sides of the corresponding rectangular blocks 4, the second rectangular groove on the right side of the two second rectangular grooves is communicated with the clamping groove 5 in a crossing way, the inner wall of the top of the first rectangular groove 10 is provided with a perforation, the inner wall of the front side and the inner wall of the rear side of the perforation are respectively connected with the front side and the rear side of the L-shaped moving rod 8 in a sliding way, the top of the cover plate 3 is provided with a circular hole, the outer cylinder protective sleeve 100 is positioned in the circular hole, the inner wall of the circular hole is provided with a ring groove with an opening at the bottom, a bearing is fixedly sleeved in the ring groove, the inner side of the bearing is fixedly connected with the outer side of the first sleeve 16, the top of the moving plate 15 is provided with a threaded hole, the outer side of the, the inner wall in second rectangular hole and the outside sliding connection of the push rod 14 that corresponds, the inner wall of first sleeve pipe 16 and the outside of outer cylinder protective case 100 contactless, two slide openings have been seted up to one side of L shape carriage release lever 8, the inner wall of slide opening and the outside sliding connection of the locating lever 9 that corresponds, the utility model relates to a rationally, be convenient for extrude its leakproofness of adjustment to elastic seal circle 2 according to actual need, prolong elastic seal circle 2's life, and be convenient for realize fast that the dismouting to elastic seal circle 2 is changed the operation, improve work efficiency, satisfy the user demand.

The working principle is as follows: when the elastic sealing ring 2 is used for a long time, the phenomenon of aging and softening occurs, so that the elastic sealing ring 2 cannot be well attached to the inner wall of the groove 1 easily, when the elastic sealing ring 2 needs to be extruded and adjusted, one holding rod 7 in the plurality of holding rods 7 is rotated in the forward direction, one holding rod 7 drives the first sleeve 16 to rotate, under the action of a threaded hole formed in the moving plate 15, the moving plate 15 is driven to move upwards while the first sleeve 16 rotates, the moving plate 15 drives the two push rods 14 to move upwards, the two push rods 14 simultaneously drive the extrusion plate 13 to move upwards and extrude the elastic sealing ring 2 at the lowest position, the elastic sealing ring 2 at the lowest position generates extrusion force on the elastic sealing ring 2 which is in contact with the elastic sealing ring, and the rest is done so that the two adjacent elastic sealing rings 2 generate upward extrusion force, the upward extrusion force is matched with the elasticity of the elastic sealing ring 2, so that the elastic sealing ring 2 expands and deforms and is in close contact with the inner wall of the groove 1, the sealing effect of the elastic sealing ring 2 is improved, the adjustment of the sealing performance is further completed, and the service life of the elastic sealing ring 2 is prolonged;

when the elastic sealing ring 2 needs to be replaced, the pushing block 11 is pushed leftwards, the pushing block 11 slides leftwards in the first rectangular groove 10 and compresses the spring 12, meanwhile, the pushing block 11 drives the L-shaped movable rod 8 to slide leftwards on the two positioning rods 9, the L-shaped movable rod 8 drives the fixture block 6 to gradually move out of the clamping groove 5 while moving, then the cover plate 3 is pulled downwards, the cover plate 3 drives the two rectangular blocks 4 to respectively move out of the corresponding first rectangular grooves, the cover plate 3 drives the first sleeve 16 to move downwards through the bearing, the first sleeve 16 drives the two push rods 14 to move downwards through the movable plate 15, the two push rods 14 simultaneously drive the extrusion plate 13 to move downwards from the groove 1, further, the fixation of the elastic sealing ring 2 is removed, then the elastic sealing ring 2 is pulled downwards, the elastic sealing ring 2 can be moved downwards from the groove 1, and the elastic sealing ring 2 is formed by mutually contacting two semicircular sealing rings in the middle part, at this time, the semicircular ring-shaped seal rings can be pulled to two sides to separate the semicircular ring-shaped seal rings and be taken down from the outer cylinder protective sleeve 100, the outer cylinder protective sleeve 100 and the inner cylinder protective sleeve 103 are not required to be disassembled, the elastic seal ring 2 can be taken down, a new elastic seal ring 2 consisting of two semicircular ring-shaped seal rings is sleeved on the outer cylinder protective sleeve 1, the elastic seal ring 2 is moved upwards to the groove 1, the outer side of the elastic seal ring 2 is tightly contacted with the inner wall of the groove 1, the cover plate 3 is pushed upwards, the cover plate 3 drives the two rectangular blocks 4 to respectively move upwards to the corresponding first rectangular grooves, meanwhile, the extrusion plate 13 moves upwards to the groove 1 and is tightly contacted with the bottom of the elastic seal ring 2 positioned below, then the thrust on the push block 11 is released, the spring 12 in a compressed state is reset, the elasticity of the spring 12 drives the L-shaped moving rod 8 to move rightwards, the L-shaped moving rod 8 drives the clamping block 6 to move rightwards to the clamping groove 5, the clamping block 6 is clamped with the clamping groove 5, the cover plate 3 is further fixed, and installation and replacement operations are further completed.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A steam turbine regulation-level steam temperature measuring device comprises a steam temperature measuring device body, wherein the steam temperature measuring device body comprises an outer cylinder protective sleeve (100), an inner cylinder protective sleeve (103) sleeved on the outer cylinder protective sleeve (100), a steam turbine high-medium pressure inner cylinder (101) fixedly sleeved on the inner cylinder protective sleeve (103), and a high-pressure sleeve separating plate (102) movably sleeved on the inner cylinder protective sleeve (103), a groove (1) is formed in the bottom end of the inner cylinder protective sleeve (103), the outer cylinder protective sleeve (100) is assembled in the groove (1), and the steam turbine regulation-level steam temperature measuring device is characterized in that a plurality of elastic sealing rings (2) positioned in the groove (1) are movably sleeved on the outer cylinder protective sleeve (100), each elastic sealing ring (2) consists of two semicircular sealing rings, one side of the two semicircular sealing rings forming the same elastic sealing ring (2) close to each other is in close contact, two adjacent elastic sealing rings (2) are in close contact, the outer sides of the elastic sealing rings (2) are in movable contact with the inner wall of the groove (1), the bottom end of an inner cylinder protective sleeve (103) is in movable contact with a cover plate (3), both sides of the top of the cover plate (3) are fixedly provided with rectangular blocks (4), the inner cylinder protective sleeve (103) is movably sleeved on the two rectangular blocks (4), the top of the rectangular block (4) on the right side in the two rectangular blocks (4) is provided with a first rectangular hole, the right side bottom of the inner cylinder protective sleeve (103) is provided with a clamping groove (5), a clamping block (6) is movably clamped in the clamping groove (5), the left side of the clamping block (6) extends into the first rectangular hole, two positioning rods (9) are fixedly arranged between the inner walls on both sides of the first rectangular hole, the two positioning rods (9) are slidably sleeved with the same L-shaped moving rod (8), the left inner wall of the L-shaped moving rod (, a first rectangular groove (10) is formed in the right side of the cover plate (3), a push block (11) is sleeved in the first rectangular groove (10) in a sliding mode, the bottom of the L-shaped moving rod (8) extends into the first rectangular groove (10), the right end of the L-shaped moving rod (8) is fixedly connected with the top of the left side of the push block (11), a spring (12) is fixedly installed between the left side of the push block (11) and the inner wall of the left side of the first rectangular groove (10), an extrusion plate (13) is movably contacted with the bottom of the elastic sealing ring (2) located at the lowest position in the elastic sealing rings (2), the extrusion plate (13) is movably sleeved on the outer cylinder protective sleeve (100), two push rods (14) are fixedly installed at the bottom of the extrusion plate (13), the outer cylinder protective sleeve (100) is located between the two push rods (14), the cover plate (3) is slidably sleeved on the two push rods (14), and the same movable plate (15) is fixedly installed, the bottom of apron (3) is rotated and is installed first sleeve pipe (16), and first sleeve pipe (16) cover is established on outer jar protective case (100), and movable plate (15) threaded sleeve is established on first sleeve pipe (16), and the outside of first sleeve pipe (16) is four holding rods (7) of rectangle fixed mounting.

2. The steam turbine regulating stage steam temperature measuring device according to claim 1, wherein the bottom of the inner cylinder protective sleeve (103) is provided with two second rectangular grooves, the inner walls of the second rectangular grooves are movably contacted with the outer sides of the corresponding rectangular blocks (4), and the second rectangular groove on the right side of the two second rectangular grooves is in cross communication with the clamping groove (5).

3. The steam turbine regulating stage steam temperature measuring device according to claim 1, characterized in that the top inner wall of the first rectangular groove (10) is provided with a through hole, and the front inner wall and the rear inner wall of the through hole are respectively connected with the front side and the rear side of the L-shaped movable rod (8) in a sliding manner.

4. The steam turbine regulating-stage steam temperature measuring device according to claim 1, wherein a circular hole is formed at the top of the cover plate (3), the outer cylinder protective sleeve (100) is positioned in the circular hole, an annular groove with an opening at the bottom is formed on the inner wall of the circular hole, a bearing is fixedly sleeved in the annular groove, and the inner side of the inner ring of the bearing is fixedly connected with the outer side of the first sleeve (16).

5. The steam temperature measuring device of the steam turbine regulating stage as claimed in claim 1, wherein the top of the moving plate (15) is provided with a threaded hole, the outer side of the first sleeve (16) is provided with an external thread, and the internal thread is in threaded connection with the threaded hole.

6. The steam turbine regulating stage steam temperature measuring device according to claim 1, characterized in that two second rectangular holes are formed in the top of the cover plate (3), and the inner walls of the second rectangular holes are slidably connected with the outer sides of the corresponding push rods (14).

7. The steam turbine regulating stage steam thermometry device according to claim 1, wherein the inner wall of the first casing (16) is not in contact with the outside of the outer casing protective casing (100).

8. The steam turbine regulating stage steam temperature measuring device according to claim 1, characterized in that one side of the L-shaped moving rod (8) is provided with two sliding holes, and the inner wall of each sliding hole is slidably connected with the outer side of the corresponding positioning rod (9).