CN221054420U - Multistage pressure reducing regulating valve with double sealing surfaces - Google Patents
Multistage pressure reducing regulating valve with double sealing surfaces Download PDFInfo
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- CN221054420U CN221054420U CN202322995905.4U CN202322995905U CN221054420U CN 221054420 U CN221054420 U CN 221054420U CN 202322995905 U CN202322995905 U CN 202322995905U CN 221054420 U CN221054420 U CN 221054420U
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- pressure reducing
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 41
- 238000007789 sealing Methods 0.000 title claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 230000009467 reduction Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 abstract description 4
- 230000004308 accommodation Effects 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008642 heat stress Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model discloses a multi-stage pressure reducing regulating valve with double sealing surfaces, which relates to the technical field of multi-stage pressure reducing regulating valves and comprises a regulating valve main body, wherein the upper end in the regulating valve main body is connected with a valve rod in a penetrating manner, the lower end in the regulating valve main body is welded with a fixed table, the front side and the rear side of the upper end of the fixed table are fixedly provided with rotating shafts, the lower end of the valve rod is fixedly provided with a plurality of valve cores, the outer side of the rotating shafts is connected with a disc in a penetrating manner, and the upper end of the disc is provided with a plurality of hole grooves. This multistage pressure reducing regulating valve of double containment face, through the cooperation of pivot and thread groove, rotate two discs at pivot drive middle part and slide to both sides to make first connecting rod and second connecting rod expand, thereby drive the even dispersion of whole discs, be convenient for adjust the interval between the discs according to fluidic pressure, improve the accommodation force of governing valve main part, the hole groove sets up with the case on the disc simultaneously, also can adjust the pressure of the inside liquid of governing valve main part through the lift of case.
Description
Technical Field
The utility model relates to the technical field of multi-stage pressure reducing regulating valves, in particular to a multi-stage pressure reducing regulating valve with double sealing surfaces.
Background
The metallurgical, petroleum and chemical industries develop at a high speed, the process level is gradually improved, and the requirements on the regulating valve for controlling the high pressure difference fluid are also higher and higher. The medium flows through the throttling surface rapidly, so that the valve internal part is eroded rapidly and fails; when the medium flows through the cross-sectional surface, flash evaporation, cavitation, flow blockage and the like are generated due to pressure change, so that the valve trim, even the valve body, is scrapped and the like, and a multi-stage pressure reducing regulating valve is needed for reducing pressure in a grading way in order to prolong the service life of the valve trim and reduce noise.
The utility model discloses a labyrinth disc regulating valve, and belongs to the technical equipment field of regulating valves, as the utility model with the application number of CN 201720093502.2. The labyrinth disc in the prior art has complex manufacturing procedures, longer period and larger manufacturing difficulty. The utility model comprises a valve body for medium flow, a labyrinth core bag arranged in the valve body and a valve plug capable of sliding back and forth in a hollow cavity in the labyrinth core bag, wherein the labyrinth core bag is provided with a first labyrinth disc and a second labyrinth disc which are arranged in a stacked manner, the first labyrinth disc is provided with a first through groove, and the second labyrinth disc is provided with a second through groove. The labyrinth core bag consists of two kinds of labyrinth disc, and the labyrinth disc has through grooves in the upper and lower ends with the same shape and the same heat stress produced during heat treatment, so that the deformation of the labyrinth disc is small. The manufacturing process of the labyrinth disc is simple, the procedures are few, the period is short, the manufacturing process is completed by a single stamping procedure, and the manufacturing cost is reduced.
Similar to the above application, the following disadvantages currently exist: the interval between the inside maze disc of maze disc governing valve is comparatively fixed, is inconvenient for adjusting the interval between the maze disc according to specific service condition, and the application scope of governing valve is narrower. Accordingly, in view of the above, research and improvement have been made to solve the conventional structure and the conventional drawbacks, and a double-seal-surface multistage pressure reducing regulating valve has been proposed.
Disclosure of utility model
The utility model aims to provide a multi-stage pressure reducing regulating valve with double sealing surfaces, which solves the problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a multistage pressure reduction governing valve of double containment face, includes the governing valve main part, the inside upper end through-connection of governing valve main part has the valve rod, the inside lower extreme welded connection of governing valve main part has the fixed station, side fixed mounting has the pivot around the fixed station upper end, valve rod lower extreme fixed mounting has a plurality of valve cores, the outside through-connection of pivot has the disc, a plurality of hole grooves have been seted up to the disc upper end, the through-hole has been seted up at disc upper end middle part, the fixed slot has been seted up to the side around the disc upper end, the inside rotation of fixed slot is connected with first connecting rod, the inside rotation of first connecting rod is connected with the second connecting rod, the screw groove has been seted up at the pivot middle part.
Further, a liquid outlet pipe is fixedly arranged at the upper end of the left side of the regulating valve main body, and a fixing block is fixedly arranged at the upper end of the liquid outlet pipe.
Further, the handle is rotated to the fixed block upper end, the inside baffle that rotates of drain pipe is connected with.
Further, the liquid inlet is formed in the bottom end of the regulating valve main body, and the upper end inside the liquid inlet is connected with a throttle plate in a sliding mode.
Furthermore, the lower end of the inner part of the liquid inlet is connected with a clamping ring in a sliding way, and the front end and the rear end of the clamping ring are connected with fixing nuts in a threaded way.
Furthermore, a clamping groove is formed in the outer side of the lower end of the throttle plate, and a plurality of buffer grooves are formed in the throttle plate.
Furthermore, a sealing ring is adhered to the middle of the fixed table, and a sealing block is welded at the lower end of the valve core.
The utility model provides a multi-stage pressure reducing regulating valve with double sealing surfaces, which has the following beneficial effects:
According to the utility model, through the cooperation of the rotating shaft and the thread groove, the rotating shaft drives the two discs in the middle to slide to two sides, so that the first connecting rod and the second connecting rod are unfolded, all the discs are driven to be uniformly dispersed, the distance between the discs is convenient to adjust according to the pressure of fluid, the adaptability of the regulating valve main body is improved, and meanwhile, the hole groove on the disc and the valve core are arranged, and the pressure of the fluid in the regulating valve main body can be adjusted through lifting of the valve core.
According to the utility model, the sealing block is embedded into the sealing ring by downwards sliding the valve rod through the cooperation of the sealing block and the sealing ring, so that external liquid is prevented from entering, and meanwhile, the handle at the upper end of the fixed block is rotated to drive the baffle to rotate, so that the liquid outlet pipe is sealed, a double sealing effect is provided, and the safety of the regulating valve in use is improved.
According to the utility model, through the matching of the throttle plate and the buffer groove, the throttle plate firstly faces the impact of fluid, so that the impact fluid is prevented from damaging parts such as the sealing block, meanwhile, the clamping groove on the throttle plate can be embedded with an external pipeline, the sealing performance of pipeline connection is improved, and meanwhile, the setting of the clamping ring and the fixing nut is convenient for the disassembly and replacement of the throttle plate, and the stability of the throttle plate is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a dual seal face multi-stage pressure reducing regulator valve of the present utility model;
FIG. 2 is a schematic diagram of a cross-sectional structure of a liquid outlet pipe of a multi-stage pressure reducing regulating valve with double sealing surfaces according to the present utility model;
FIG. 3 is a schematic diagram of the overall bottom cross-section mechanism of the dual-seal-surface multi-stage pressure reducing and regulating valve of the present utility model;
FIG. 4 is a schematic diagram of the overall right-side cross-sectional structure of a dual-seal-surface multi-stage pressure reducing regulating valve according to the present utility model;
FIG. 5 is a schematic perspective view of a disc of a dual-seal-surface multi-stage pressure reducing regulating valve of the present utility model;
Fig. 6 is a schematic perspective view of a rotating shaft of a multi-stage pressure reducing regulating valve with double sealing surfaces.
In the figure: 1. a regulating valve body; 2. a liquid outlet pipe; 3. a fixed block; 4. a handle; 5. a baffle; 6. a liquid inlet; 7. a throttle plate; 8. a collar; 9. a fixing nut; 10. a clamping groove; 11. a valve stem; 12. a rotating shaft; 13. a valve core; 14. a disc; 15. a hole groove; 16. a through hole; 17. a sealing block; 18. a fixed table; 19. a seal ring; 20. a fixing groove; 21. a first link; 22. a second link; 23. a buffer tank; 24. a thread groove.
Detailed Description
Referring to fig. 1 and 2, the present utility model provides a technical solution: the utility model provides a multistage pressure reduction governing valve of double containment face, includes governing valve main part 1, and governing valve main part 1 left side upper end fixed mounting has drain pipe 2, and drain pipe 2 upper end fixed mounting has fixed block 3, and fixed block 3 upper end rotates has handle 4, and the inside rotation of drain pipe 2 is connected with baffle 5, through the handle 4 on the fixed block 3 of rotation, and the baffle 5 in the drain pipe 2 also rotates thereupon, is convenient for seal drain pipe 2;
Referring to fig. 3, a liquid inlet 6 is formed at the bottom end of a regulating valve main body 1, a throttle plate 7 is slidingly connected to the upper end inside the liquid inlet 6, a collar 8 is slidingly connected to the lower end inside the liquid inlet 6, a fixing nut 9 is screwed to the front end and the rear end of the collar 8, a clamping groove 10 is formed at the outer side of the lower end of the throttle plate 7, a plurality of buffer grooves 23 are formed in the throttle plate 7, a valve rod 11 is connected to the upper end inside the regulating valve main body 1 in a penetrating manner, a fixing table 18 is welded to the lower end inside the regulating valve main body 1, a sealing ring 19 is adhered to the middle part of the fixing table 18, a rotating shaft 12 is fixedly arranged at the front side and the rear side of the upper end of the fixing table 18, the throttle plate 7 is matched with the buffer grooves 23, impacted fluid is split and buffered, the components such as the sealing block 17 are prevented from being damaged by the too fast fluid flow, meanwhile, the clamping groove 10 on the throttle plate 7 is convenient for clamping an external pipeline, the sealing performance of the pipeline connection is improved, the throttle plate 7 is convenient to be replaced and installed through the collar 8 and the fixing nut 9, is stable, and the valve, through the lifting and lifting of the valve rod 11, drives the sealing block 17, and sealing ring 17, and sealing and against and sealing ring and 18 are blocked and liquid are separated from outside;
Referring to fig. 4, 5 and 6, a plurality of valve cores 13 are fixedly arranged at the lower end of a valve rod 11, a disc 14 is connected to the outer side of a rotating shaft 12 in a penetrating manner, a plurality of hole grooves 15 are formed at the upper end of the disc 14, a through hole 16 is formed in the middle of the upper end of the disc 14, a sealing block 17 is welded at the lower end of the valve core 13, a fixing groove 20 is formed at the front side and the rear side of the upper end of the disc 14, a first connecting rod 21 is rotatably connected to the inside of the fixing groove 20, a second connecting rod 22 is rotatably connected to the inside of the first connecting rod 21, a threaded groove 24 is formed in the middle of the rotating shaft 12, by rotating the rotating shaft 12, the threaded groove 24 formed in the middle of the rotating shaft 12 enables the two discs 14 in the middle to slide towards the upper end and the lower end, and when the disc 14 slides towards the upper end and the lower end, the first connecting rod 21 and the second connecting rod 22 in the fixing groove 20 are driven to extend, so that the discs 14 slide evenly towards the upper end and the lower end along the rotating shaft 12, and the distance between the discs 14 can be conveniently adjusted according to different liquid pressures.
Working principle: firstly, according to fig. 2 and 3, the external pipeline is clamped into the liquid inlet 6, the clamping groove 10 is formed in the throttle plate 7 in sliding connection with the liquid inlet 6, so that the external pipeline is clamped with the liquid inlet 6 more tightly, the compactness of the pipeline connection is improved, the throttle plate 7 is matched with the buffer groove 23, the impacted fluid is split and buffered, the components such as the sealing block 17 and the like are prevented from being damaged too fast in fluid flow velocity, the throttle plate 7 is convenient to replace and install through the clamping ring 8 and the fixing nut 9, and meanwhile, the stability of the throttle plate 7 is improved.
Then according to fig. 1, 2 and 4, the handle 4 on the fixed block 3 is rotated, so that the baffle 5 in the liquid outlet pipe 2 is also rotated, the liquid outlet pipe 2 is conveniently opened and closed, and meanwhile, the valve rod 11 is lifted to drive the sealing block 17 to lift, so that the sealing block 17 is clamped into or separated from the sealing ring 19 on the fixed table 18, the external liquid is blocked or released, and the safety of the regulating valve main body 1 is improved through the structure of the double sealing surface.
Finally, according to fig. 3, fig. 4, fig. 5 and fig. 6, by rotating the rotating shaft 12, the thread groove 24 formed in the middle of the rotating shaft 12 makes the two discs 14 in the middle slide towards the upper and lower ends, when the discs 14 slide towards the upper and lower ends, the first connecting rod 21 and the second connecting rod 22 in the fixed groove 20 are driven to stretch, so that the discs 14 uniformly slide towards the upper and lower ends along the rotating shaft 12, the space between the discs 14 is conveniently adjusted according to different liquid pressures, the discs 14 are installed in a staggered manner, the hole grooves 15 are staggered, the pressure and the flow rate of the fluid are conveniently slowed down, the valve core 13 slides in the through hole 16 by lifting the valve rod 11, the pressure and the flow rate of the liquid are further adjusted, and the application range of the regulating valve main body 1 is improved.
Claims (7)
1. The utility model provides a multistage pressure reduction governing valve of double containment face, its characterized in that, including governing valve main part (1), inside upper end through-connection of governing valve main part (1) has valve rod (11), the inside lower extreme welded connection of governing valve main part (1) has fixed station (18), side fixed mounting has pivot (12) around fixed station (18) upper end, valve rod (11) lower extreme fixed mounting has a plurality of case (13), pivot (12) outside through-connection has disc (14), a plurality of hole grooves (15) have been seted up to disc (14) upper end, through-hole (16) have been seted up at disc (14) upper end middle part, fixed slot (20) have been seted up to disc (14) upper end front and back side, fixed slot (20) inside rotation is connected with first connecting rod (21), first connecting rod (21) inside rotation is connected with second connecting rod (22), thread groove (24) have been seted up at pivot (12) middle part.
2. The multi-stage pressure reducing regulating valve with the double sealing surfaces according to claim 1, wherein a liquid outlet pipe (2) is fixedly arranged at the upper end of the left side of the regulating valve main body (1), and a fixed block (3) is fixedly arranged at the upper end of the liquid outlet pipe (2).
3. The multi-stage pressure reducing regulating valve with the double sealing surfaces according to claim 2, wherein a handle (4) is rotated at the upper end of the fixed block (3), and a baffle (5) is rotatably connected inside the liquid outlet pipe (2).
4. The double-sealing-surface multistage pressure reducing regulating valve according to claim 1, wherein a liquid inlet (6) is formed in the bottom end of the regulating valve main body (1), and a throttle plate (7) is slidably connected to the upper end inside the liquid inlet (6).
5. The multi-stage pressure reducing regulating valve with the double sealing surfaces according to claim 4, wherein a clamping ring (8) is connected to the lower end of the inner part of the liquid inlet (6) in a sliding mode, and a fixing nut (9) is connected to the front end and the rear end of the clamping ring (8) in a threaded mode.
6. The multi-stage pressure reducing regulating valve with the double sealing surfaces according to claim 4, wherein a clamping groove (10) is formed in the outer side of the lower end of the throttle plate (7), and a plurality of buffer grooves (23) are formed in the throttle plate (7).
7. The double-sealing-surface multistage pressure reducing regulating valve according to claim 1, wherein a sealing ring (19) is adhered to the middle of the fixed table (18), and a sealing block (17) is welded at the lower end of the valve core (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322995905.4U CN221054420U (en) | 2023-11-07 | 2023-11-07 | Multistage pressure reducing regulating valve with double sealing surfaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322995905.4U CN221054420U (en) | 2023-11-07 | 2023-11-07 | Multistage pressure reducing regulating valve with double sealing surfaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221054420U true CN221054420U (en) | 2024-05-31 |
Family
ID=91205317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322995905.4U Active CN221054420U (en) | 2023-11-07 | 2023-11-07 | Multistage pressure reducing regulating valve with double sealing surfaces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221054420U (en) |
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2023
- 2023-11-07 CN CN202322995905.4U patent/CN221054420U/en active Active
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