CN220668488U - Corrosion-resistant lining relief valve - Google Patents
Corrosion-resistant lining relief valve Download PDFInfo
- Publication number
- CN220668488U CN220668488U CN202321475865.4U CN202321475865U CN220668488U CN 220668488 U CN220668488 U CN 220668488U CN 202321475865 U CN202321475865 U CN 202321475865U CN 220668488 U CN220668488 U CN 220668488U
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- 238000005260 corrosion Methods 0.000 title claims abstract description 22
- 230000007797 corrosion Effects 0.000 title claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 37
- 230000001105 regulatory effect Effects 0.000 claims description 18
- 238000001746 injection moulding Methods 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 9
- 238000005381 potential energy Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000630 rising effect Effects 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Safety Valves (AREA)
Abstract
The utility model relates to a corrosion-resistant lining safety valve, which belongs to the technical field of safety valves and comprises an upper valve body, wherein the lower end of the upper valve body is fixedly connected with a lower valve body, the lower end of the lower valve body is provided with a medium inlet, the outer wall of one side of the lower valve body is provided with a medium outlet, the interior of the lower valve body is connected with a sealing valve core in a sliding manner, a first sliding cavity matched with the sealing valve core in size is formed in the interior of the lower valve body, the upper end of the upper valve body is connected with a threaded rod in a threaded manner, the surface of the upper end of the sealing valve core is provided with a limiting groove, and a spring is fixedly connected in the limiting groove. The pressure-reducing valve has the beneficial effects that the arranged threaded rod can drive the connecting seat to move downwards through rotation, so that the extruded spring is contracted, the elastic potential energy of the extruded spring is increased, the pressure-reducing cavity can be communicated with the medium inlet only by the sealing valve core under larger pressure, and vice versa, and the pressure-reducing threshold of the safety valve can be easily adjusted according to the pressure-reducing requirement in the process.
Description
Technical Field
The utility model relates to the technical field of safety valves, in particular to a corrosion-resistant lining safety valve.
Background
The safety valve is a special valve which is in a normally closed state under the action of external force, when the pressure of medium fluid in equipment or a pipeline rises to exceed a specified value, the medium fluid is discharged outside the system to prevent the pressure of the medium in the pipeline or the equipment from exceeding the specified value, the safety valve belongs to automatic valves, is mainly used on boilers, pressure vessels and pipelines, controls the pressure not to exceed the specified value, and plays an important role in protecting personal safety and equipment operation.
Application number: 201620400631.7; the corrosion-resistant lining safety valve comprises a valve body, wherein the upper part of the valve body is connected with a valve cover; the lower part of the valve body is provided with a feed inlet, and the side part of the valve body is provided with a discharge outlet; a baffle is arranged between the valve cover and the valve body; the valve cover is internally and vertically provided with a valve rod, the valve rod is provided with a spring in a sleeved mode, the lower portion of the valve rod is provided with a pressing seat, the lower portion of the pressing seat is provided with an impact section, steel balls are embedded in the impact section, and the pressing seat is pressed on the steel balls; the corrosion-resistant lining safety valve provided by the utility model has the following beneficial effects: 1. when the valve rod is pressed down, the pressing seat presses the steel balls, the steel balls can balance the force of the springs, the springs are effectively prevented from being balanced, the pressing force is balanced, and the valve clack is sealed more stably; 2. the polytetrafluoroethylene layer is coated in the valve body, so that corrosive liquid is effectively prevented from overlooking the valve body, and the service life of the safety valve is prolonged; 3. the special mechanism of the valve seat at the upper part of the spring ensures that the spring is more stable in ascending and descending.
The sealing valve core sealing force of the safety valve in the prior art is difficult to adjust, so that debugging work of the safety valve is complicated, the opening size of a pressure relief opening of the sealing valve cannot be adaptively changed according to the pressure, and therefore if the pressure suddenly increases and the pressure relief speed cannot be timely increased, safety accidents are easy to occur, and aiming at the conditions, the corrosion-resistant lining safety valve is provided.
Disclosure of Invention
The utility model aims to provide a corrosion-resistant lining safety valve, which solves the problems that in the background technology, the sealing force of a sealing valve core of the safety valve in the market at present is difficult to adjust, so that the debugging work of the safety valve is complicated, the opening size of a pressure release opening of the sealing valve cannot be adaptively changed according to the pressure, and the pressure release speed cannot be timely increased if the pressure is suddenly increased.
The technical scheme of the utility model is as follows:
including last valve body, go up valve body lower extreme fixedly connected with lower valve body, the lower valve body lower extreme is provided with the medium import, valve body one side outer wall is provided with the medium export down, the inside sliding connection of lower valve body has sealed case, the inside first smooth chamber of having seted up with sealed case size assorted of lower valve body, go up valve body upper end threaded connection has the threaded rod, the spacing groove has been seted up to sealed case upper end surface, fixedly connected with spring in the spacing groove, spring upper end fixedly connected with connecting seat, connecting seat and threaded rod lower extreme rotate to be connected, sliding connection between connecting seat and the last valve body, go up valve body inside seted up with connecting seat assorted second smooth chamber, the inside partial pressure chamber of having seted up of lower valve body, lower valve body opposite side outer wall is provided with the pressure release mouth, the pressure release mouth is linked together with the partial pressure chamber.
Further, the movable cavity is formed in the lower valve body, the movable block is connected inside the movable cavity in a sliding mode, the regulating valve block is fixed on the lower surface of the movable block, the outer surface of the regulating valve block is tightly attached to the inner wall of the pressure dividing cavity, and the limiting block is fixed on the outer wall of one side, close to the pressure dividing cavity, of the sealing valve core.
Further, the guide block is fixed on the outer wall of the connecting seat, the guide groove is formed in the second sliding cavity, and the guide block is connected with the guide groove in a sliding mode.
Further, a sealing rubber ring is arranged between the upper valve body and the lower valve body.
Further, the surfaces of the medium inlet, the medium outlet, the first sliding cavity, the sealing valve core, the movable cavity, the movable block, the regulating valve block, the pressure dividing cavity and the pressure relief opening are all coated with anti-corrosion layers.
Furthermore, the sealing valve core and the limiting block are integrally formed by injection molding.
The utility model provides a corrosion-resistant lining safety valve through improvement, which has the following improvements and advantages compared with the prior art:
the method comprises the following steps: according to the utility model, the threaded rod can rotate to drive the connecting seat to move downwards, so that the extruded spring is contracted, the elastic potential energy of the extruded spring is increased, the sealing valve core is required to be subjected to larger pressure to enable the pressure dividing cavity to be communicated with the medium inlet, and vice versa, and the pressure relief threshold of the safety valve can be easily adjusted according to pressure relief requirements in the process.
And two,: according to the utility model, the sealing valve core can drive the limiting block to rise along with the limiting block in the process of overcoming the rising of the pressure of the spring, so that the rising limiting block can contact the regulating valve block and exert an upward force on the regulating valve block, and the regulating valve block moves along the movable cavity through the movable block, so that the volume of the pressure dividing cavity is increased, the pressure release flow of the pressure dividing cavity is improved, the flow of the pressure dividing cavity can be automatically regulated along with the rising stroke of the sealing valve core in the process, the larger the medium circulation pressure is, the faster the pressure release rate of the safety valve is, and the use safety of the safety valve is effectively improved.
Drawings
The utility model is further explained below with reference to the drawings and examples:
FIG. 1 is a schematic diagram of the front view of the present utility model;
FIG. 2 is a schematic diagram of a limiting groove structure of the present utility model;
FIG. 3 is a schematic side view of the present utility model;
fig. 4 is an enlarged schematic view of the structure of fig. 1 a according to the present utility model.
Reference numerals illustrate: 1. an upper valve body; 2. a lower valve body; 3. a medium inlet; 4. a medium outlet; 5. sealing the valve core; 6. a threaded rod; 7. a limit groove; 8. a spring; 9. a connecting seat; 10. a movable cavity; 11. a movable block; 12. a regulating valve block; 13. a pressure dividing chamber; 14. a limiting block; 15. and a pressure relief port.
Detailed Description
The following detailed description of the present utility model will provide clear and complete description of the technical solutions of the embodiments of the present utility model, with reference to fig. 1 to 4, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a corrosion-resistant lining safety valve through improvement, as shown in figures 1-3, comprising an upper valve body 1, wherein the lower end of the upper valve body 1 is fixedly connected with a lower valve body 2, the lower end of the lower valve body 2 is provided with a medium inlet 3, the outer wall of one side of the lower valve body 2 is provided with a medium outlet 4, the inside of the lower valve body 2 is slidingly connected with a sealing valve core 5, the inside of the lower valve body 2 is provided with a first sliding cavity matched with the sealing valve core 5 in size, the upper end of the upper valve body 1 is in threaded connection with a threaded rod 6, the upper end surface of the sealing valve core 5 is provided with a limit groove 7, the limit groove 7 is fixedly connected with a spring 8, the upper end of the spring 8 is fixedly connected with a connecting seat 9, the connecting seat 9 is rotationally connected with the lower end of the threaded rod 6, the connecting seat 9 is slidingly connected with the upper valve body 1, the inside of the upper valve body 1 is provided with a second sliding cavity matched with the connecting seat 9, the inside of the lower valve body 2 is provided with a pressure dividing cavity 13, the outer wall of the other side of the lower valve body 2 is provided with a pressure relief opening 15, the pressure relief opening 15 is communicated with the pressure-dividing cavity 13, a medium inlet 3 at the lower end of the lower valve body 2 can enable a medium to enter the pressure-dividing cavity and can be normally discharged from the medium outlet 4, if the medium pressure is increased, an upward force is applied to the sealing valve core 5, so that the sealing valve core 5 overcomes the elasticity of the spring 8 and moves along the first sliding cavity, the pressure-dividing cavity 13 is communicated with the medium inlet 3, part of the medium is discharged from the pressure-dividing cavity 13 to the pressure relief opening 15, so that the pressure relief effect is realized, a threaded rod 6 can rotate to drive a connecting seat 9 to move downwards, so that the spring 8 is extruded to shrink, the elastic potential energy of the extruded spring is increased, the sealing valve core 5 needs to be subjected to larger pressure to enable the pressure-dividing cavity 13 to be communicated with the medium inlet 3, the pressure relief threshold of the safety valve can be easily adjusted according to the pressure relief requirement in the process.
As shown in fig. 1-4, the movable cavity 10 is formed in the lower valve body 2, the movable cavity 10 is internally and slidably connected with the movable block 11, the regulating valve block 12 is fixed on the lower surface of the movable block 11, the outer surface of the regulating valve block 12 is tightly attached to the inner wall of the pressure dividing cavity 13, the outer wall of one side of the sealing valve core 5, which is close to the pressure dividing cavity 13, is fixedly provided with the limiting block 14, the sealing valve core 5 can drive the limiting block 14 to rise along with the limiting block 14 in the process of overcoming the pressure rise of the spring 8, so that the rising limiting block 14 can contact the regulating valve block 12 and exert an upward force on the regulating valve block, and the regulating valve can move along the movable cavity 10 through the movable block 11, thereby increasing the volume of the pressure dividing cavity 13, improving the pressure release flow of the pressure dividing cavity 13, ensuring that the larger the pressure release rate of the medium is, and effectively improving the use safety of the safety valve.
The guide block is fixed on the outer wall of the connecting seat 9, the guide groove is formed in the second sliding cavity, the guide block is connected with the guide groove in a sliding mode, the guide block can ensure that the connecting seat 9 can not rotate in the lifting process along the threaded rod 6, and damage to the spring 8 is avoided.
The sealing rubber ring is arranged between the upper valve body 1 and the lower valve body 2, so that the sealing performance of the safety valve can be effectively improved, and leakage of a medium from between the two valve bodies is avoided.
The medium inlet 3, the medium outlet 4, the first sliding cavity, the sealing valve core 5, the movable cavity 10, the movable block 11, the regulating valve block 12, the pressure dividing cavity 13 and the pressure relief opening 15 are all coated with an anti-corrosion layer, and the anti-corrosion layer is made of polytetrafluoroethylene, so that the anti-corrosion performance of the safety valve can be effectively improved, and the valve body can be ensured to be used for conveying corrosive mediums such as strong acid, strong alkali and the like.
The seal valve core 5 and the limiting block 14 are integrally formed by injection molding, the structural strength of the limiting block 14 formed by injection molding of the seal valve core 5 is higher, the breakage of the limiting block 14 in the long-time use and stress process is avoided, and the normal use of the regulating valve block 12 is ensured.
Working principle: firstly, medium can enter from a medium inlet 3 at the lower end of a lower valve body 2 and can be discharged from a medium outlet 4, if the medium pressure is increased, an upward force is applied to a sealing valve core 5, so that the sealing valve core 5 overcomes the elasticity of a spring 8 and moves along a first sliding cavity, a pressure dividing cavity 13 is communicated with the medium inlet 3, then part of medium is discharged from the pressure dividing cavity 13 to a pressure relief opening 15 so as to realize the pressure relief effect, a connecting seat 9 can be driven by rotation of a threaded rod 6, so that the pressing spring 8 contracts, the elastic potential energy of the pressed spring is increased, the sealing valve core 5 is required to be subjected to larger pressure to enable the pressure dividing cavity 13 to be communicated with the medium inlet 3, the pressure relief threshold of a safety valve can be easily adjusted according to the pressure relief requirement, and finally the sealing valve core 5 can drive a limiting block 14 to rise along with the pressure rising process of the spring 8, so that the rising limiting block 14 can contact a pressure regulating valve block 12 and apply an upward force to the pressure dividing cavity, and enable the pressure dividing cavity to move along the movable block 11 to move along the pressure dividing cavity 10, so that the volume of the pressure dividing cavity 13 can be increased, the pressure flow rate of the safety valve can be increased, the safety valve can be increased more rapidly, and the pressure flow rate of the safety valve can be increased along with the pressure dividing cavity 13, the pressure relief valve can be effectively regulated, and the pressure flow rate can be increased along with the pressure relief cavity 13.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A corrosion resistant lined safety valve, characterized by: including last valve body (1), go up valve body (1) lower extreme fixedly connected with lower valve body (2), valve body (2) lower extreme is provided with medium import (3) down, valve body (2) one side outer wall is provided with medium export (4) down, valve body (2) inside sliding connection has sealed case (5), valve body (2) inside set up with sealed case (5) size assorted first smooth chamber down, go up valve body (1) upper end threaded connection has threaded rod (6), limit groove (7) have been seted up on sealed case (5) upper end surface, limit groove (7) internal connection has spring (8), spring (8) upper end fixedly connected with connecting seat (9), connecting seat (9) and threaded rod (6) lower extreme swivelling joint, sliding connection between connecting seat (9) and last valve body (1), go up valve body (1) inside set up with connecting seat (9) assorted second smooth chamber, partial pressure chamber (13) have been seted up down in valve body (2) upper end surface, valve body (2) outer wall (15) are connected with partial pressure chamber (15).
2. A corrosion resistant lined safety valve according to claim 1, wherein: the movable valve is characterized in that a movable cavity (10) is formed in the lower valve body (2), a movable block (11) is connected inside the movable cavity (10) in a sliding mode, an adjusting valve block (12) is fixed on the lower surface of the movable block (11), the outer surface of the adjusting valve block (12) is tightly attached to the inner wall of the pressure dividing cavity (13), and a limiting block (14) is fixed on the outer wall of one side, close to the pressure dividing cavity (13), of the sealing valve core (5).
3. A corrosion resistant lined safety valve according to claim 1, wherein: the guide block is fixed on the outer wall of the connecting seat (9), the guide groove is formed in the second sliding cavity, and the guide block is connected with the guide groove in a sliding mode.
4. A corrosion resistant lined safety valve according to claim 1, wherein: a sealing rubber ring is arranged between the upper valve body (1) and the lower valve body (2).
5. A corrosion resistant lined safety valve according to claim 1, wherein: the anti-corrosion valve is characterized in that anti-corrosion layers are sprayed on the surfaces of the medium inlet (3), the medium outlet (4), the first sliding cavity, the sealing valve core (5), the movable cavity (10), the movable block (11), the regulating valve block (12), the pressure dividing cavity (13) and the pressure relief opening (15).
6. A corrosion resistant liner relief valve according to claim 1 or 2, wherein: and the sealing valve core (5) and the limiting block (14) are integrally formed by injection molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321475865.4U CN220668488U (en) | 2023-06-12 | 2023-06-12 | Corrosion-resistant lining relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321475865.4U CN220668488U (en) | 2023-06-12 | 2023-06-12 | Corrosion-resistant lining relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220668488U true CN220668488U (en) | 2024-03-26 |
Family
ID=90342013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321475865.4U Active CN220668488U (en) | 2023-06-12 | 2023-06-12 | Corrosion-resistant lining relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220668488U (en) |
-
2023
- 2023-06-12 CN CN202321475865.4U patent/CN220668488U/en active Active
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