CN111335974A - Propping tool and propping method for measuring high-pressure regulating valve stroke of steam turbine - Google Patents
Propping tool and propping method for measuring high-pressure regulating valve stroke of steam turbine Download PDFInfo
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- CN111335974A CN111335974A CN202010231094.9A CN202010231094A CN111335974A CN 111335974 A CN111335974 A CN 111335974A CN 202010231094 A CN202010231094 A CN 202010231094A CN 111335974 A CN111335974 A CN 111335974A
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000007704 transition Effects 0.000 claims abstract description 16
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims description 10
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000005259 measurement Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
- F01D25/285—Temporary support structures, e.g. for testing, assembling, installing, repairing; Assembly methods using such structures
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/107—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means for lifting engines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F13/00—Common constructional features or accessories
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Control Of Turbines (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention belongs to the technical field of mechanical disassembly and assembly, and particularly relates to a jacking tool for measuring the pre-starting stroke and the full stroke of a high-pressure regulating valve of a steam turbine and a jacking method thereof. In the invention, a left support frame and a right support frame are mutually symmetrical structures, the left support frame is of a concave structure, 2 spare hoisting holes are formed in the plane of a middle depression, and a spherical surface part between the two spare hoisting holes is a transition surface for lifting a high-pressure adjusting door spherical head; the side surface of the left support frame is provided with 4 through holes, the full-thread long screw rod and the gasket are matched and then penetrate through the left support frame and the right support frame, and the penetrating end of the full-thread long screw rod is connected with a locknut to connect the left support frame and the right support frame; 4 jackscrews are screwed into the spare hoisting hole. The invention realizes the accurate measurement and adjustment of the pre-starting stroke and the full stroke of the high-pressure regulating valve of the steam turbine without using a main crane, and optimizes the current maintenance operation mode.
Description
Technical Field
The invention belongs to the technical field of mechanical disassembly and assembly, and particularly relates to a jacking tool for measuring the pre-starting stroke and the full stroke of a high-pressure regulating valve of a steam turbine and a jacking method thereof.
Background
In two K-1000-60/3000 type turbines in the first stage of engineering of a Tianwan nuclear power station, each unit turbine is respectively provided with 4 high-pressure regulating valves, the type of the valve is a 1358109C Б type stop valve, from the viewpoint of verifying the overhaul quality, ensuring the operation safety of the unit and the nuclear safety, the high-pressure regulating valves are required to be pre-started and measured in the full stroke after overhaul, and the strokes partially exceeding the design standard are adjusted.
In order to check and adjust the pre-starting stroke and the full stroke of the high-pressure regulating valve, the valve stroke needs to be repeatedly lifted and lowered by a main driving vehicle on site for a long time so as to be convenient for accurate measurement of data and vacate necessary operation processing space, and the work brings great influence to key paths of unit overhaul and is not beneficial to the idea of optimizing the overhaul period of a company.
Disclosure of Invention
The invention aims to solve the problem of insufficient maintenance supporting facilities in the prior art, and provides a jacking tool and a jacking method thereof for measuring the stroke of a high-pressure regulating valve of a steam turbine, which can realize accurate measurement and adjustment of the pre-starting stroke and the full stroke of the high-pressure regulating valve of the steam turbine without using a main crane, and optimize the current maintenance operation mode.
The technical scheme adopted by the invention is as follows:
a supporting tool for measuring the high-pressure regulating stroke of a steam turbine comprises a left supporting frame, a right supporting frame, a full-thread long screw, a gasket, a jackscrew, a locknut and a standby hoisting hole; the left support frame and the right support frame are mutually symmetrical structures, the left support frame is of a concave structure, 2 spare hoisting holes are formed in the plane of the middle depression, and the spherical surface part between the two spare hoisting holes is a transition surface and used for lifting the high-pressure adjusting door ball head; the side surface of the left support frame is provided with 4 through holes, the full-thread long screw rod and the gasket are matched and then penetrate through the left support frame and the right support frame, and the penetrating end of the full-thread long screw rod is connected with a locknut to connect the left support frame and the right support frame; 4 jackscrews are screwed into the spare hoisting hole.
The distance adjusting ring is sleeved on the full-thread long screw rod between the left support frame and the right support frame, the distance between the left support frame and the right support frame is achieved through the distance adjusting ring, and locking is carried out through the locknut after adjustment.
Ensure that the heights of the 4 jackscrews are consistent.
The initial height of the left support frame and the initial height of the right support frame are adjusted by hydraulic lifting equipment, and the transition surface is ensured to be in uniform and comprehensive contact with a high-pressure throttle ball head.
A supporting method for measuring the stroke of a high-pressure regulating valve of a steam turbine comprises the following steps:
step 1, clamping a high-pressure adjusting valve rod by a left support frame and a right support frame, and completing the installation of the support frames;
step 2, lifting the supporting tool to ensure that the spherical transition surface is uniformly and comprehensively contacted with the high-pressure adjusting valve ball head;
step 3, completely screwing 4 jackscrews downwards into the standby hoisting hole until the jackscrews contact with an upper end cover of the high-pressure adjusting door, so that the jacking tool keeps a state of lifting the ball head, wherein the heights of the 4 jackscrews are consistent;
step 4, measuring the distance between the propping tool and the upper end cover of the high-pressure adjusting door at the moment;
step 5, symmetrically and uniformly screwing the jackscrews downwards continuously, lifting the ball head by utilizing the reaction force of the jacking device, and lifting the high-pressure adjusting door;
step 6, screwing the bolt downwards until the bolt cannot be screwed, and measuring the distance between the propping tool and the upper end cover of the high-pressure adjusting door at the moment;
and 7, measuring the distance difference between two times to obtain the stroke of the high-pressure regulating valve pre-opening valve.
A supporting method for measuring the stroke of a high-pressure regulating valve of a steam turbine comprises the following steps:
step 1, erecting a lifting point, wherein the lifting point is positioned right above a ball head, and the lifting point is used for hanging a chain block;
step 2, clamping the high-pressure adjusting valve rod by the left support frame and the right support frame, and completing installation of the support frames;
step 3, screwing 4 lifting lugs into the spare hoisting holes, hanging the lifting straps, and lifting a supporting tool by using a chain block to ensure that the spherical transition surface is uniformly and comprehensively contacted with the ball head of the high-pressure governing valve;
step 4, measuring the distance between the propping tool and the upper end cover of the high-pressure adjusting door at the moment;
step 5, slowly pulling the chain block to lift the high-pressure regulating gate;
step 6, pulling the chain block until the sound is heard, and measuring the distance between the propping tool and the upper end cover of the high-pressure adjusting door at the moment;
and 7, measuring the distance difference between two times to obtain the stroke of the high-pressure regulating valve pre-opening valve.
A supporting method for measuring the stroke of a high-pressure regulating valve of a steam turbine comprises the following steps:
step 1, clamping a high-pressure adjusting valve rod by a left support frame and a right support frame, and completing the installation of the support frames;
step 2, lifting the supporting tool, and placing the hydraulic jacks in the middle positions of two sides of the supporting tool;
step 3, lifting a supporting tool by using a hydraulic jack to ensure that the spherical transition surface is uniformly and comprehensively contacted with the high-pressure governing valve ball head;
step 4, measuring the distance between the propping tool and the upper end cover of the high-pressure adjusting door at the moment;
step 5, continuing to use the hydraulic jack to lift the supporting device, and then lifting the high-pressure adjusting door;
step 6, measuring the distance between the propping tool and the upper end cover of the high-pressure adjusting door at the moment until the sound is heard;
and 7, measuring the distance difference between two times to obtain the stroke of the high-pressure regulating valve pre-opening valve.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention provides a supporting tool for measuring the stroke of a high-pressure regulating valve of a steam turbine, which has the characteristics of simple structure, no space limitation in use and the like, is simple and easy to use, and is convenient to carry;
(2) the invention provides a supporting tool for measuring the stroke of a high-pressure regulating valve of a steam turbine, which can be quickly and effectively firmly connected with a valve rod, so that the valve rod cannot slip in the process of assembly and disassembly;
(3) the invention provides a supporting tool for measuring the stroke of a high-pressure regulating valve of a steam turbine, which ensures that the valve rod is lifted in the vertical direction with uniform force all around, and greatly reduces the situation that the valve rod is jammed due to abrasion between the valve rod and a valve rod sleeve caused by uneven stress;
(4) the invention provides a supporting tool for measuring the stroke of a high-pressure regulating valve of a steam turbine, which can realize accurate measurement and adjustment of the pre-starting stroke and the full stroke of the high-pressure regulating valve under the condition of not using a main travelling crane;
(5) the invention provides a supporting tool for measuring the stroke of a high-pressure regulating valve of a steam turbine, which can greatly shorten the maintenance time of a main line on the premise of ensuring the maintenance quality.
Drawings
FIG. 1 is a schematic structural diagram of a topping tool for a pre-starting stroke and a full stroke of a high pressure governor of a steam turbine according to the present invention;
FIG. 2 is a cross-sectional view of the left support frame of the jacking tool for the pre-starting stroke and the full stroke of the high-pressure regulating valve of the steam turbine provided by the invention;
FIG. 3 is a cross-sectional view of the right support frame of the jacking tool for the pre-starting stroke and the full stroke of the high pressure control valve of the steam turbine provided by the invention;
fig. 4 is an effect diagram of the support tool for the pre-starting stroke and the full stroke of the high-pressure regulating valve of the steam turbine provided by the invention after the integral installation on site.
Wherein, 1-left support frame; 2-right support frame; 3-full-thread long screw; 4-a gasket; 5-top thread; 6-spacing adjustment ring; 7-locknut; 8-spare hoisting holes.
Detailed Description
The present invention provides a supporting tool and a supporting method for measuring the stroke of a high pressure governor of a steam turbine, which are described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, a topping tool for measuring a stroke of a high pressure governor of a steam turbine includes: the device comprises a left support frame 1, a right support frame 2, a full-thread long screw 3, a gasket 4, a jackscrew 5, a spacing adjusting ring 6, a locknut 7 and a standby hoisting hole 8; as shown in fig. 2 and 3, a left support frame 1 and a right support frame 2 are symmetrical structures, taking the left support frame 1 as an example, the left support frame 1 is a concave structure, 2 spare hoisting holes 8 are formed in a plane of a middle depression, a spherical surface part between the two spare hoisting holes 8 is a transition surface for lifting a ball head, 4 through holes are formed in the side surface of the left support frame 1, a full-thread long screw 3 and a gasket 4 are matched and then penetrate through the left support frame 1 and the right support frame 2, and a penetrating end is connected with a locknut 7 to connect the left support frame 1 with the right support frame 2; a distance adjusting ring 6 is sleeved on the full-thread long screw 3 between the left support frame 1 and the right support frame 2, the distance between the left support frame 1 and the right support frame 2 is realized through the distance adjusting ring 6, and the locking is carried out through a locknut 7 after the adjustment; 4 jackscrews 5 are screwed into spare lifting hole 8 inside, ensure that 4 jackscrews 5 highly keep unanimous.
As shown in fig. 4, hydraulic lifting equipment is used on two sides of the left support frame 1 and the right support frame 2 to adjust the initial height, so that the transition surface is ensured to be in uniform and comprehensive contact with the high-pressure throttle ball head.
A supporting tool for measuring the stroke of a high-pressure regulating valve of a steam turbine comprises the following embodiments:
scheme 1:
step 1, clamping a high-pressure adjusting valve rod by the left and right support frames 1 and 2, and completing the installation of the support frames;
step 2, lifting the supporting tool to ensure that the spherical transition surface is uniformly and comprehensively contacted with the high-pressure adjusting valve ball head;
step 3, completely screwing 4 jackscrews downwards into the standby hoisting hole until the jackscrews contact with an upper end cover of the high-pressure adjusting door, so that the jacking tool keeps a state of lifting the ball head, wherein the heights of the 4 jackscrews are consistent;
step 4, measuring the distance between the propping tool and the upper end cover of the high-pressure adjusting door at the moment;
step 5, symmetrically and uniformly screwing the jackscrews downwards continuously, lifting the ball head by utilizing the reaction force of the jacking device, and lifting the high-pressure adjusting door;
step 6, screwing the bolt downwards until the bolt cannot be screwed, and measuring the distance between the propping tool and the upper end cover of the high-pressure adjusting door at the moment;
and 7, measuring the distance difference between two times to obtain the stroke of the high-pressure regulating valve pre-opening valve.
Scheme 2:
step 1, erecting a lifting point, wherein the lifting point is positioned right above a ball head, and the lifting point is used for hanging a chain block;
step 2, clamping the high-pressure adjusting valve rod by the left and right support frames 1 and 2, and completing the installation of the support frames;
step 3, screwing 4 lifting lugs into the spare hoisting holes, hanging the lifting straps, and lifting a supporting tool by using a chain block to ensure that the spherical transition surface is uniformly and comprehensively contacted with the ball head of the high-pressure governing valve;
step 4, measuring the distance between the propping tool and the upper end cover of the high-pressure adjusting door at the moment;
step 5, slowly pulling the chain block to lift the high-pressure regulating gate;
step 6, pulling the chain block until the hand block hears a sound of 'baking', and measuring the distance between the propping tool and the upper end cover of the high-pressure adjusting door at the moment;
and 7, measuring the distance difference between two times to obtain the stroke of the high-pressure regulating valve pre-opening valve.
Scheme 3:
step 1, clamping a high-pressure adjusting valve rod by the left and right support frames 1 and 2, and completing the installation of the support frames;
step 2, lifting the supporting tool, and placing the hydraulic jacks in the middle positions of two sides of the supporting tool;
step 3, lifting a supporting tool by using a hydraulic jack to ensure that the spherical transition surface is uniformly and comprehensively contacted with the high-pressure governing valve ball head;
step 4, measuring the distance between the propping tool and the upper end cover of the high-pressure adjusting door at the moment;
step 5, continuing to use the hydraulic jack to lift the supporting device, and then lifting the high-pressure adjusting door;
step 6, measuring the distance between the propping tool and the upper end cover of the high-pressure adjusting door at the moment until a sound of 'clang' is heard;
and 7, measuring the distance difference between two times to obtain the stroke of the high-pressure regulating valve pre-opening valve.
The present invention has been described in detail with reference to the drawings and examples, but the present invention is not limited to the examples, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention. The prior art can be adopted in the content which is not described in detail in the invention.
Claims (7)
1. The utility model provides a prop a instrument for measuring steam turbine high pressure governing valve stroke which characterized in that: the device comprises a left support frame (1), a right support frame (2), a full-thread long screw (3), a gasket (4), a jackscrew (5), a locknut (7) and a spare hoisting hole (8); the left support frame (1) and the right support frame (2) are mutually symmetrical structures, the left support frame (1) is of a concave structure, 2 spare hoisting holes (8) are formed in the plane of the middle depression, and the spherical surface part between the two spare hoisting holes (8) is a transition surface for lifting the high-pressure adjusting valve ball head; the side surface of the left support frame (1) is provided with 4 through holes, the full-thread long screw (3) and the gasket (4) are matched and then penetrate through the left support frame (1) and the right support frame (2), the penetrating end is connected with a locknut (7), and the left support frame (1) is connected with the right support frame (2); 4 jackscrews (5) are screwed into the spare hoisting hole (8).
2. The topping tool for measuring the stroke of a high-pressure governor of a steam turbine according to claim 1, wherein: on full silk long screw (3) between left branch strut (1) and right branch strut (2), the cover has interval adjusting ring (6), and the interval between left branch strut (1) and right branch strut (2) is realized through interval adjusting ring (6), locks through lock nut (7) after the adjustment.
3. The topping tool for measuring the stroke of a high-pressure governor of a steam turbine according to claim 1, wherein: the heights of the 4 top threads (5) are ensured to be consistent.
4. The topping tool for measuring the stroke of a high-pressure governor of a steam turbine according to claim 1, wherein: the initial height of the left support frame (1) and the initial height of the right support frame (2) are adjusted by hydraulic lifting equipment, and the transition surface is ensured to be in uniform and comprehensive contact with a high-pressure gate ball head.
5. The topping method of a topping tool for measuring a stroke of a high pressure governor of a steam turbine according to any one of claims 1 to 4, wherein: the method comprises the following steps:
step (1), clamping a high-pressure governing valve rod by a left support frame (1) and a right support frame (2), and completing the installation of the support frames;
step (2), lifting the supporting tool to ensure that the spherical transition surface is uniformly and comprehensively contacted with the high-pressure adjusting valve ball head;
step (3), the 4 jackscrews (5) are screwed into the standby hoisting holes (8) downwards until contacting with the upper end cover of the high-pressure adjusting door, so that the jacking tool keeps a state of lifting the ball head, wherein the heights of the 4 jackscrews (5) are consistent;
step (4), measuring the distance between the propping tool and the upper end cover of the high-pressure adjusting door at the moment;
step (5), symmetrically and uniformly screwing the jackscrews (5) downwards continuously, lifting the ball head by utilizing the reaction force of the jacking device, and lifting the high-pressure adjusting door;
step (6), screwing the bolt downwards until the bolt cannot be screwed, and measuring the distance between the propping tool and the upper end cover of the high-pressure adjusting door at the moment;
and (7) measuring the distance difference between the two times to obtain the stroke of the high-pressure regulating valve pre-opening valve.
6. The topping method of a topping tool for measuring a stroke of a high pressure governor of a steam turbine according to any one of claims 1 to 4, wherein: the method comprises the following steps:
step (1), erecting a lifting point, wherein the lifting point is positioned right above the ball head, and the hand chain block is hung at the lifting point;
step (2), clamping the high-pressure governing valve rod by the left support frame (1) and the right support frame (2), and completing the installation of the support frames;
step (3), screwing 4 lifting lugs into the spare hoisting holes (8), hanging the lifting straps, and lifting a supporting tool by using a chain block to ensure that the spherical transition surface is uniformly and comprehensively contacted with the ball head of the high-pressure governing valve;
step (4), measuring the distance between the propping tool and the upper end cover of the high-pressure adjusting door at the moment;
step (5), slowly pulling the chain block, and lifting the high-pressure regulating gate;
step (6), pulling the chain block until the sound is heard, and measuring the distance between the propping tool and the upper end cover of the high-pressure adjusting door at the moment;
and (7) measuring the distance difference between the two times to obtain the stroke of the high-pressure regulating valve pre-opening valve.
7. The topping method of a topping tool for measuring a stroke of a high pressure governor of a steam turbine according to any one of claims 1 to 4, wherein: the method comprises the following steps:
step (1), clamping a high-pressure governing valve rod by a left support frame (1) and a right support frame (2), and completing the installation of the support frames;
lifting the supporting tool, and placing the hydraulic jack in the middle of two sides of the supporting tool;
step (3), a hydraulic jack is used for lifting a supporting tool, and the spherical transition surface is ensured to be in uniform and comprehensive contact with the high-pressure adjusting valve ball head;
step (4), measuring the distance between the propping tool and the upper end cover of the high-pressure adjusting door at the moment;
step (5), continuing to use the hydraulic jack to lift the supporting device, and then lifting the high-pressure adjusting door;
step (6), measuring the distance between the propping tool and the upper end cover of the high-pressure adjusting door at the moment until the sound is heard;
and (7) measuring the distance difference between the two times to obtain the stroke of the high-pressure regulating valve pre-opening valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010231094.9A CN111335974B (en) | 2020-03-27 | 2020-03-27 | Propping tool and propping method for measuring high-pressure regulating gate stroke of steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010231094.9A CN111335974B (en) | 2020-03-27 | 2020-03-27 | Propping tool and propping method for measuring high-pressure regulating gate stroke of steam turbine |
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| Publication Number | Publication Date |
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| CN111335974A true CN111335974A (en) | 2020-06-26 |
| CN111335974B CN111335974B (en) | 2024-06-07 |
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| CN202010231094.9A Active CN111335974B (en) | 2020-03-27 | 2020-03-27 | Propping tool and propping method for measuring high-pressure regulating gate stroke of steam turbine |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102597452A (en) * | 2009-09-03 | 2012-07-18 | 大众汽车有限公司 | Method for assembling and adjusting an actuator of an exhaust gas turbocharger, and an actuator intended for a charging device |
| CN206346784U (en) * | 2016-12-31 | 2017-07-21 | 湛江电力有限公司 | A kind of turbine high-pressure servo valve valve rod attachment means |
| US20180230900A1 (en) * | 2017-02-13 | 2018-08-16 | ECO Holding 1 GmbH | Check valve for connecting rod of variable compression internal comustion engine and connecting rod with the check valve |
| CN208155288U (en) * | 2018-06-04 | 2018-11-27 | 华能烟台发电有限公司 | The adaptive transmission device of novel steam turbine pitch displacement sensor |
| CN212296515U (en) * | 2020-03-27 | 2021-01-05 | 江苏核电有限公司 | Supporting tool for measuring high-pressure regulating valve stroke of steam turbine |
-
2020
- 2020-03-27 CN CN202010231094.9A patent/CN111335974B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102597452A (en) * | 2009-09-03 | 2012-07-18 | 大众汽车有限公司 | Method for assembling and adjusting an actuator of an exhaust gas turbocharger, and an actuator intended for a charging device |
| CN206346784U (en) * | 2016-12-31 | 2017-07-21 | 湛江电力有限公司 | A kind of turbine high-pressure servo valve valve rod attachment means |
| US20180230900A1 (en) * | 2017-02-13 | 2018-08-16 | ECO Holding 1 GmbH | Check valve for connecting rod of variable compression internal comustion engine and connecting rod with the check valve |
| CN208155288U (en) * | 2018-06-04 | 2018-11-27 | 华能烟台发电有限公司 | The adaptive transmission device of novel steam turbine pitch displacement sensor |
| CN212296515U (en) * | 2020-03-27 | 2021-01-05 | 江苏核电有限公司 | Supporting tool for measuring high-pressure regulating valve stroke of steam turbine |
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| CN111335974B (en) | 2024-06-07 |
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