CN217029035U - Steam turbine regulating valve - Google Patents
Steam turbine regulating valve Download PDFInfo
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- CN217029035U CN217029035U CN202221120900.6U CN202221120900U CN217029035U CN 217029035 U CN217029035 U CN 217029035U CN 202221120900 U CN202221120900 U CN 202221120900U CN 217029035 U CN217029035 U CN 217029035U
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Abstract
The utility model discloses a steam turbine regulating valve, which comprises: the cavity has been seted up to the inside of the main valve body, the bottom fixedly connected with adjusting valve gap of the main valve body, the bottom of adjusting valve gap is run through and is had the valve pressure adjusting part who extends to the inside of the main valve body cavity, valve pressure adjusting part includes screw thread valve rod, first spacing ring, second spacing ring and pressure release piece, the one end of screw thread valve rod is run through adjusting valve gap and is extended to the inside of the main valve body cavity, the top of screw thread valve rod just is located the cavity internal rotation of the main valve body and is connected with the pressure regulating piece, the surface cover of pressure regulating piece is equipped with first seal cover. According to the utility model, the threaded valve rod is rotated to push the pressure regulating block to displace and regulate the tension of the pressure relief spring, so that the pressure required by downward displacement and pressure relief of the pressure relief block can be regulated, the rapid regulation of the valve pressure value of the valve can be completed, the rapid regulation can be carried out according to the pressure relief requirement of the steam turbine regulating valve mounting device, and the adaptability of the pressure relief and mounting of the valve is improved.
Description
Technical Field
The utility model relates to the technical field of adjusting devices, in particular to a steam turbine adjusting valve.
Background
In the automatic control of modern plants, the control valves, which are essential in thermal power plants as they function as variable resistance in pipes, the production of which depends on the correct distribution and control of the flowing medium, whether it be the exchange of energy, the reduction of pressure or the simple charging of a container, which requires some final control element to be carried out, play a very important role.
At present, the valve pressure value of the existing steam turbine regulating valve is inconvenient to carry out quick regulation, the valve pressure value is regulated quickly according to different pressure relief requirements of different devices, the adaptability of valve pressure relief installation is reduced, the pressure relief values are not matched, and the production danger is increased while the valve pressure relief speed is reduced.
Therefore, it is necessary to provide a steam turbine regulating valve to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a steam turbine regulating valve to solve the problem that the valve pressure of the valve is inconvenient to regulate quickly in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: a steam turbine regulator valve, comprising: the main valve body, the cavity has been seted up to the inside of the main valve body, the bottom fixedly connected with adjusting valve gap of the main valve body, adjusting valve gap's bottom is run through and is extended to the inside valve pressure adjusting part of main valve body cavity, valve pressure adjusting part includes screw thread valve rod, first spacing ring, second spacing ring and lets out the briquetting, the one end of screw thread valve rod is run through adjusting valve gap and is extended to the inside of main valve body cavity, the top of screw thread valve rod just is located the cavity internal rotation of the main valve body and is connected with the pressure regulating block, the surface cover of pressure regulating block is equipped with first seal cover, the surface cover of letting out the briquetting is equipped with the second seal cover, the inside cover that just is located first spacing ring between the top of pressure regulating block and the bottom of letting out the briquetting is equipped with the pressure release spring.
Preferably, the pressure regulating block slides up and down in the cavity of the main valve body through the first sealing sleeve.
Preferably, the pressure relief block slides up and down in the cavity of the main valve body through the second sealing sleeve.
Preferably, the first limit ring is fixedly connected inside the cavity of the main valve body and located right above the pressure regulating block, and the second limit ring is fixedly connected inside the cavity of the main valve body and located right above the pressure releasing block.
Preferably, the bottom end of the threaded valve rod is fixedly connected with a vertical thread rotating cover, and the threaded valve rod is in threaded connection with the main valve body.
Preferably, the top of the main valve body is fixedly connected with an air inlet pipe communicated with the inner cavity, and two sides of the main valve body are fixedly connected with pressure relief pipes communicated with the inner cavity.
Preferably, the inner pipe surfaces of the two pressure relief pipes and the air inlet pipe are provided with spiral threads.
Compared with the prior art, the utility model has the beneficial effects that:
(1) this steam turbine governing valve through rotating the screw thread valve rod, promotes the pressure regulating piece and carries out the displacement, adjusts the tension of pressure release spring to can adjust the required pressure of the downward displacement pressure release of pressure release piece, accomplish the quick adjustment to valve gate valve magnitude of pressure, can carry out quick adjustment according to steam turbine governing valve installation device's pressure release demand, increased valve pressure release installation suitability.
(2) This steam turbine governing valve discharges simultaneously through the atmospheric pressure of two pressure release pipes in to the internal cavity of main valve, has improved valve pressure release speed to valve pressure release security has effectively been improved.
Drawings
FIG. 1 is a schematic main sectional view of the present invention;
FIG. 2 is a front view of the present invention in a schematic configuration;
FIG. 3 is a schematic side view of the structure of the present invention;
FIG. 4 is a schematic top view of the structure of the present invention.
In the figure: 1. a main valve body; 2. adjusting a valve cover; 3. a valve pressure regulating assembly; 4. an air inlet pipe; 5. a pressure relief pipe; 6. helical thread; 31. a threaded valve stem; 32. adjusting the pressure block; 33. a pressure relief spring; 34. a first limit ring; 35. a second stop collar; 36. a first seal cartridge; 37. releasing the pressure block; 38. a second seal cartridge; 39. and (5) vertically-threaded rotating covers.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a steam turbine regulator valve, comprising: the main valve body 1, the interior of the main valve body 1 is provided with a cavity, the bottom of the main valve body 1 is fixedly connected with an adjusting valve cover 2, the bottom of the adjusting valve cover 2 is penetrated with a valve pressure adjusting component 3 extending to the interior of the cavity of the main valve body 1, the valve pressure adjusting component 3 comprises a threaded valve rod 31 and a first limit ring 34, second spacing ring 35 and pressure release piece 37, the one end of screw thread valve rod 31 runs through the inside that adjusts valve gap 2 and extend to the main valve body 1 cavity, the top of screw thread valve rod 31 just is located the inside rotation of the cavity of the main valve body 1 and is connected with pressure regulating block 32, the surface cover of pressure regulating block 32 is equipped with first seal cover 36, the surface cover of pressure release piece 37 is equipped with second seal cover 38, the inside cover that just is located first spacing ring 34 between the top of pressure regulating block 32 and the bottom of pressure release piece 37 is equipped with pressure release spring 33, intake pipe 4 passes through screw and main valve body 1 fixed connection, adjust valve gap 2 and pass through screw and main valve body 1 fixed connection.
Referring to fig. 1, the pressure regulating block 32 slides up and down in the cavity of the main valve body 1 through the first sealing sleeve 36, and the first sealing sleeve 36 is made of rubber to ensure that the pressure regulating block 32 slides in the cavity of the main valve body 1 in a sealing manner.
Referring to fig. 1, the pressure relief block 37 slides up and down in the cavity of the main valve body 1 through the second sealing sleeve 38, and the second sealing sleeve 38 is made of rubber to ensure that the pressure relief block 37 slides in the cavity of the main valve body 1 in a sealing manner.
Referring to fig. 1, the first limiting ring 34 is fixedly connected inside the cavity of the main valve body 1 and located right above the pressure regulating block 32, the second limiting ring 35 is fixedly connected inside the cavity of the main valve body 1 and located right above the pressure releasing block 37, the first limiting ring 34 has a limiting effect on the moving distance of the pressure regulating block 32, the pressure regulating block 32 is prevented from moving to the communication position between the air inlet pipe 4 and the cavity inside the main valve body 1, the second limiting ring 35 has a limiting effect on the pressure releasing block 37, the pressure releasing block 37 is prevented from being pushed out of the main valve body 1 by the elastic force of the pressure releasing spring 33, and the pressure releasing sensitivity of the valve is ensured.
Referring to fig. 1-2, the bottom end of the threaded valve rod 31 is fixedly connected with a vertical thread rotating cover 39, the threaded valve rod 31 is in threaded connection with the main valve body 1, vertical threads on the surface of the vertical thread rotating cover 39 increase friction between fingers and the vertical thread rotating cover 39, so that workers can easily rotate the threaded valve rod 31, and the threaded valve rod 31 can move upwards when the threaded valve rod 31 is rotated due to the threaded connection between the threaded valve rod 31 and the main valve body 1.
Referring to fig. 1, the top of the main valve body 1 is fixedly connected with an air inlet pipe 4 communicated with the inner cavity, two sides of the main valve body 1 are fixedly connected with pressure release pipes 5 communicated with the inner cavity, and the two pressure release pipes 5 are fixedly connected with the main valve body 1 through screws.
Referring to fig. 1, the inner pipe surfaces of the two pressure relief pipes 5 and the air inlet pipe 4 are provided with spiral threads 6, and are in threaded connection with an external pipeline through the spiral threads 6, so that the quick installation is realized.
The working principle is as follows: as shown in fig. 1-4, when the steam turbine regulating valve is used, firstly, the air is connected with an external pipeline through the air inlet pipe 4 and the internal spiral threads 6 of the two pressure release pipes 5 by screw threads, the air enters the cavity of the main valve body 1 through the air inlet pipe 4, because the second sealing sleeve 38 has a sealing effect on the joint of the pressure release block 37 and the main valve body 1, the air pressure above the pressure release block 37 is increased, so that the pressure release block 37 can be pushed downwards, the pressure release block 37 compresses the pressure release spring 33 downwards, the pressure release block 37 slides in the cavity of the main valve body 1 through the second sealing sleeve 38 in a sealing manner, when the pressure release block 37 moves to the joint of the two pressure release pipes 5 and the cavity of the main valve body 1, the pressure is released, the redundant air is discharged through the pressure release pipes 5, when the air pressure above the pressure release block 37 returns to the normal air pressure value through pressure release, the elastic force of the pressure release spring 33 can push the pressure release block 37 upwards to move, the pressure relief block 37 is reset, the second limiting ring 35 limits the pressure relief block 37 to prevent the pressure relief block 37 from moving back beyond the original position, thereby affecting the overall pressure relief sensitivity of the valve, when the regulating valve is installed on different devices for use, the threaded valve rod 31 can be rotated through the vertical thread rotating cover 39, because the threaded valve rod 31 is in threaded connection with the regulating valve cover 2, the threaded valve rod 31 moves upwards while rotating, thereby the pressure regulating block 32 can be pushed upwards, the pressure regulating block 32 slides in the cavity of the main valve body 1 in a sealing manner through the first sealing sleeve 36, meanwhile, the pressure relief spring 33 is extruded, the distance between the pressure regulating block 32 and the pressure relief block 37 is shortened, the pressure required by the pressure relief block 37 to extrude the pressure relief spring 33 is increased, thereby the valve pressure value is increased, the first limiting ring 34 has a limiting effect on the pressure regulating block 32 to prevent the pressure regulating block 32 from moving to the connection between the two pressure relief pipes 5 and the cavity inside the main valve body 1, the pressure is released through the two pressure release pipes 5, so that a pressure release channel of the valve is increased, the pressure release speed is increased, and the steam turbine regulating valve is characterized in that.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A steam turbine regulator valve, comprising: the main valve body (1) is characterized in that a cavity is formed in the main valve body (1), an adjusting valve cover (2) is fixedly connected to the bottom of the main valve body (1), a valve pressure adjusting assembly (3) extending into the cavity of the main valve body (1) penetrates through the bottom of the adjusting valve cover (2), the valve pressure adjusting assembly (3) comprises a threaded valve rod (31), a first limiting ring (34), a second limiting ring (35) and a pressure relief block (37), one end of the threaded valve rod (31) penetrates through the adjusting valve cover (2) and extends into the cavity of the main valve body (1), a pressure adjusting block (32) is rotatably connected to the top end of the threaded valve rod (31) and located in the cavity of the main valve body (1), a first sealing sleeve (36) is sleeved on the surface of the pressure adjusting block (32), and a second sealing sleeve (38) is sleeved on the surface of the pressure relief block (37), a pressure relief spring (33) is sleeved between the top of the pressure regulating block (32) and the bottom of the pressure relief block (37) and inside the first limiting ring (34).
2. A steam turbine regulating valve in accordance with claim 1, wherein: the pressure regulating block (32) slides up and down in the cavity of the main valve body (1) through a first sealing sleeve (36).
3. A steam turbine regulating valve in accordance with claim 1, wherein: the pressure relief block (37) slides up and down in the cavity of the main valve body (1) through a second sealing sleeve (38).
4. A steam turbine regulating valve in accordance with claim 1, wherein: the first limiting ring (34) is fixedly connected inside the cavity of the main valve body (1) and located right above the pressure regulating block (32), and the second limiting ring (35) is fixedly connected inside the cavity of the main valve body (1) and located right above the pressure releasing block (37).
5. A steam turbine regulating valve in accordance with claim 1, wherein: the bottom end of the threaded valve rod (31) is fixedly connected with a vertical thread rotating cover (39), and the threaded valve rod (31) is in threaded connection with the main valve body (1).
6. A steam turbine regulating valve in accordance with claim 1, wherein: the top of the main valve body (1) is fixedly connected with an air inlet pipe (4) communicated with the inner cavity, and two sides of the main valve body (1) are fixedly connected with pressure relief pipes (5) communicated with the inner cavity.
7. A steam turbine regulating valve according to claim 6, wherein: the inner pipe surfaces of the two pressure relief pipes (5) and the air inlet pipe (4) are provided with spiral threads (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221120900.6U CN217029035U (en) | 2022-05-11 | 2022-05-11 | Steam turbine regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221120900.6U CN217029035U (en) | 2022-05-11 | 2022-05-11 | Steam turbine regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217029035U true CN217029035U (en) | 2022-07-22 |
Family
ID=82438168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221120900.6U Active CN217029035U (en) | 2022-05-11 | 2022-05-11 | Steam turbine regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217029035U (en) |
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2022
- 2022-05-11 CN CN202221120900.6U patent/CN217029035U/en active Active
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