CN220581758U - Spring direct load type safety valve - Google Patents
Spring direct load type safety valve Download PDFInfo
- Publication number
- CN220581758U CN220581758U CN202322104092.5U CN202322104092U CN220581758U CN 220581758 U CN220581758 U CN 220581758U CN 202322104092 U CN202322104092 U CN 202322104092U CN 220581758 U CN220581758 U CN 220581758U
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- Prior art keywords
- pressure release
- valve
- cavity
- valve core
- air inlet
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- 238000007789 sealing Methods 0.000 claims abstract description 28
- 238000007906 compression Methods 0.000 claims abstract description 15
- 230000006835 compression Effects 0.000 claims abstract description 14
- 230000000149 penetrating effect Effects 0.000 claims abstract description 13
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000007689 inspection Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
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- Safety Valves (AREA)
Abstract
The utility model discloses a spring direct load type safety valve which comprises a valve body, an air inlet cavity, a pressure release valve core, an arc valve core bottom groove, an elastic sealing layer, a compression spring, a sliding pressing plate, a threaded hole, a threaded ejector rod, a penetrating observation port, a transparent observation window, a pressure release channel, an air outlet, an air release core head, an auxiliary spring, a spherical top cover and an annular opening step. The utility model can adjust the allowable value of the relief pressure of the relief valve, is convenient for checking the relief pressure of the relief valve, can observe the valve core action state of the relief valve in real time, can coat and seal the top end of the air inlet cavity of the relief valve through the arc valve core bottom groove adhered with the elastic sealing layer, has uniform and stable sealing effect and is not easy to generate hidden danger of air leakage.
Description
[ field of technology ]
The utility model relates to the technical field of safety valves, in particular to the technical field of spring direct load type safety valves.
[ background Art ]
The safety valve is a special valve which is in a normally closed state under the action of external force and prevents the medium pressure in the pipeline or the equipment from exceeding a specified value by discharging the medium to the outside of the system when the medium pressure in the equipment or the pipeline rises to exceed the specified value. The safety valve belongs to automatic valves, and is mainly used for boilers, pressure vessels and pipelines, and the control pressure does not exceed a specified value, so that the safety valve plays an important role in protecting personal safety and equipment operation. The safety valve plays a role in safety protection in the system. When the pressure of the system exceeds a specified value, the safety valve is opened, and part of gas/fluid in the system is discharged outside the atmosphere/pipeline, so that the pressure of the system does not exceed an allowable value, and the system is ensured not to be in accident due to the overhigh pressure.
In the use process of a general spring direct load type safety valve, although part of gas/fluid in a system can be discharged outside an atmosphere/pipeline when the pressure of the system exceeds a specified value, the pressure is inconvenient to discharge equipment, the damage of the high pressure of the equipment is easy to cause even the damage of accidents, meanwhile, the sealing effect of the connecting part of a valve core and a valve body is poor, and the hidden danger of air leakage is easy to generate.
[ utility model ]
The utility model aims to solve the problems in the prior art, and provides a spring direct load type safety valve, which can adjust the allowable pressure discharge value of the safety valve, is convenient for pressure discharge inspection of the safety valve, can observe the valve core action state of the safety valve in real time, can cover and seal the top end of an air inlet cavity of the safety valve through an arc valve core bottom groove adhered with an elastic sealing layer, has uniform and stable sealing effect, and is not easy to generate hidden danger of air leakage.
In order to achieve the above purpose, the utility model provides a spring direct load type safety valve, which comprises a valve body, an air inlet cavity, a pressure release valve core, an arc valve core bottom groove, an elastic sealing layer, a compression spring, a sliding pressing plate, a threaded hole, a threaded ejector rod, a penetrating observation port, a transparent observation window, a pressure release channel, an exhaust port, an exhaust core head, an auxiliary spring, a spherical top cover and an annular opening step, wherein the bottom of the valve body is provided with the air inlet cavity, the top of the air inlet cavity is communicated with the pressure release cavity, the pressure release cavity is internally provided with the valve core, the bottom of the pressure release valve core is correspondingly provided with the arc valve core bottom groove at the top end opening position of the air inlet cavity, the inside of the arc valve core bottom groove is uniformly adhered with the elastic sealing layer, the top of the pressure release valve core is provided with the compression spring, the top of the compression spring is provided with the sliding pressing plate, the threaded hole is penetrated at the top of the pressure release cavity, the threaded hole is penetrated with the ejector rod which is contacted with the sliding pressing plate, the left side of the pressure release cavity is correspondingly provided with the penetrating observation port, the transparent observation window is hermetically installed in the penetrating observation port, the right side of the pressure release cavity is correspondingly provided with the right side of the pressure release cavity, the pressure release cavity is correspondingly provided with the spherical top cover, the exhaust port is correspondingly provided with the annular opening, the exhaust port is correspondingly provided with the exhaust port, the annular top cover, the exhaust port is internally provided with the exhaust port, and the annular top cover is hidden at the exhaust port.
Preferably, the top opening of the air inlet cavity is convexly arranged at the bottom of the pressure release cavity, the shape of the outer side surface of the top opening of the air inlet cavity is matched with the bottom groove of the arc valve core, and the bottom groove of the arc valve core is not contacted with the bottom of the pressure release cavity.
Preferably, the pressure release cavity is a smooth cylindrical cavity, and the outer side surface of the pressure release valve core is matched with the inner side wall of the pressure release cavity.
Preferably, the elastic sealing layer is an elastic silicon rubber sealing layer, and a rounded arc surface is arranged at the top end opening position of the air inlet cavity.
Preferably, the observation part of the transparent observation window is a convex lens, and an auxiliary lock nut is sleeved on the upper part of the threaded ejector rod.
The utility model has the beneficial effects that: according to the utility model, through combining the valve body, the air inlet cavity, the pressure relief valve core, the arc valve core bottom groove, the elastic sealing layer, the compression spring, the sliding pressure plate, the threaded hole, the threaded ejector rod, the penetrating observation port, the transparent observation window, the pressure relief channel, the air outlet, the exhaust core head, the auxiliary spring, the spherical top cover and the annular opening step together, through experimental optimization, the safety valve can adjust the extrusion elasticity of the compression spring through the threaded rod matched with the sliding pressure plate, thereby adjusting the allowable pressure value of the safety valve, facilitating the pressure relief inspection of the safety valve, simultaneously, the valve core action state of the safety valve can be observed in real time through the side transparent observation hole, the top end of the air inlet cavity of the safety valve is coated and sealed through the arc valve core bottom groove adhered with the elastic sealing layer, the sealing effect is uniform and stable, hidden danger is not easy to be generated, and the spherical top cover is matched with the annular opening step to ensure smooth air exhaust and simultaneously prevent sundries outside the opening from entering the air outlet to cause blockage.
The features and advantages of the present utility model will be described in detail by way of example with reference to the accompanying drawings.
[ description of the drawings ]
Fig. 1 is a schematic view of a spring-loaded safety valve according to the present utility model.
In the figure: the valve comprises a 1-valve body, a 2-air inlet cavity, a 3-pressure relief cavity, a 4-pressure relief valve core, a 5-arc valve core bottom groove, a 6-elastic sealing layer, a 7-compression spring, an 8-sliding pressing plate, a 9-threaded hole, a 10-threaded ejector rod, an 11-through observation port, a 12-transparent observation window, a 13-pressure relief channel, a 14-air outlet, a 15-air exhaust core head, a 16-auxiliary spring, a 17-spherical top cover and an 18-annular opening step.
[ detailed description ] of the utility model
Referring to fig. 1, the utility model relates to a spring direct load type safety valve, which comprises a valve body 1, an air inlet cavity 2, a pressure release cavity 3, a pressure release valve core 4, an arc valve core bottom groove 5, an elastic sealing layer 6, a compression spring 7, a sliding pressing plate 8, a threaded hole 9, a threaded ejector rod 10, a penetrating observation port 11, a transparent observation window 12, a pressure release channel 13, an air outlet 14, an exhaust core head 15, an auxiliary spring 16, a spherical top cover 17 and an annular opening step 18, wherein the bottom of the valve body 1 is provided with the air inlet cavity 2, the top of the air inlet cavity 2 is communicated with the pressure release cavity 3, the pressure release valve core 4 is installed in the pressure release cavity 3, the arc valve core bottom groove 5 is arranged at the bottom of the pressure release valve core 4 corresponding to the opening position of the top end of the air inlet cavity 2, the elastic sealing layer 6 is uniformly adhered inside the arc valve core bottom groove 5, the top of the pressure relief valve core 4 is provided with a compression spring 7, the top of the compression spring 7 is provided with a sliding pressure plate 8, the top of the pressure relief cavity 3 is provided with a threaded hole 9 in a penetrating way, a threaded ejector rod 10 which is contacted with the sliding pressure plate 8 is arranged in the threaded hole 9 in a penetrating way, the left side of the pressure relief cavity 3 is provided with a penetrating observation port 11 corresponding to the position of the pressure relief valve core 4, the penetrating observation port 11 is internally provided with a transparent observation window 12 in a sealing way, the right side of the pressure relief cavity 3 is provided with a pressure relief channel 13 corresponding to the position of the pressure relief valve core 4, the middle part of the pressure relief channel 13 is provided with an exhaust port 14, an exhaust core head 15 is arranged in the exhaust port 14 in a sliding way, the bottom end of the exhaust core head 15 is arranged in the pressure relief channel 13 through an auxiliary spring 16, the top of the exhaust core head 15 is provided with a spherical top cover 17, the utility model discloses a pressure relief valve, including pressure release valve core, elastic sealing layer, air inlet cavity, pressure release valve core, annular opening step 18 is provided with the opening outside of gas vent 14, annular opening step 18 hides the setting in spherical top cap 17 inboard, the open top protrusion of air inlet cavity 2 sets up in pressure release cavity 3 bottom, the open top side shape of air inlet cavity 2 coincides with arc case kerve 5, arc case kerve 5 does not contact each other with the bottom of pressure release cavity 3, pressure release cavity 3 is smooth cylindrical cavity, the lateral surface of pressure release valve core 4 coincides with the inside wall of pressure release cavity 3, elastic sealing layer 6 is elastic silicone rubber sealing layer, the open top position of air inlet cavity 2 is provided with the circular arc face, the observation position of transparent observation window 12 is the convex lens, the upper portion cover of screw ejector pin 10 is equipped with supplementary lock nut.
According to the utility model, through combining the valve body 1, the air inlet cavity 2, the pressure relief cavity 3, the pressure relief valve core 4, the arc valve core bottom groove 5, the elastic sealing layer 6, the compression spring 7, the sliding pressure plate 8, the threaded hole 9, the threaded ejector rod 10, the penetrating observation port 11, the transparent observation window 12, the pressure relief channel 13, the exhaust port 14, the exhaust core head 15, the auxiliary spring 16, the spherical top cover 17 and the annular opening step 18 together, through experimental optimization, the safety valve can adjust the extrusion elasticity of the compression spring 7 through the threaded rod matched with the sliding pressure plate 8, thereby adjusting the allowable pressure value of the safety valve, facilitating the pressure relief inspection of the safety valve, and simultaneously, the valve core action state of the safety valve can be observed in real time through the side transparent observation hole, the top end of the safety valve air inlet cavity 2 is covered and sealed through the arc valve core bottom groove 5 adhered with the elastic sealing layer 6, the sealing effect is uniform and stable, hidden danger is not easy to generate, and the spherical top cover 17 is matched with the annular opening step 18 to ensure smooth exhaust and simultaneously prevent sundries outside the opening from entering the exhaust port 14 to cause blockage.
The above embodiments are illustrative of the present utility model, and not limiting, and any simple modifications of the present utility model fall within the scope of the present utility model.
Claims (5)
1. A spring direct load type safety valve, characterized in that: comprises a valve body (1), an air inlet cavity (2), a pressure release cavity (3), a pressure release valve core (4), an arc valve core bottom groove (5), an elastic sealing layer (6), a compression spring (7), a sliding pressing plate (8), a threaded hole (9), a threaded ejector rod (10), a penetrating observation port (11), a transparent observation window (12), a pressure release channel (13), an air outlet (14), an exhaust core head (15), an auxiliary spring (16), a spherical top cover (17) and an annular opening step (18), the bottom of the valve body (1) is provided with the air inlet cavity (2), the top of the air inlet cavity (2) is communicated with the pressure release cavity (3), the pressure release valve core (4) is installed in the pressure release cavity (3), the arc valve core bottom groove (5) is arranged at the bottom of the pressure release valve core (4) corresponding to the opening position of the top end of the air inlet cavity (2), the elastic sealing layer (6) is uniformly adhered inside the arc valve core bottom groove (5), the compression spring (7) is installed at the top of the valve core (4), the sliding pressing plate (8) is installed at the top of the compression spring (7), the top is provided with the threaded hole (9) penetrating through the top of the pressure release cavity (3), threaded ejector rods (10) which are in contact with the sliding pressing plates (8) are inserted in the threaded holes (9), through-observing openings (11) are formed in the left sides of the pressure release cavities (3) corresponding to the pressure release valve cores (4), transparent observing windows (12) are arranged in the through-observing openings (11) in a sealing mode, pressure release channels (13) are formed in the right sides of the pressure release cavities (3) corresponding to the pressure release valve cores (4), exhaust ports (14) are formed in the middle of the pressure release channels (13), exhaust core heads (15) are arranged in the exhaust ports (14) in a sliding mode, spherical top covers (17) are arranged at the tops of the exhaust core heads (15), annular opening steps (18) are arranged on the outer sides of openings of the exhaust ports (14), and the annular opening steps (18) are arranged on the inner sides of the spherical top covers (17) in a hidden mode.
2. A spring direct load relief valve as defined in claim 1, wherein: the top end opening of the air inlet cavity (2) is convexly arranged at the bottom of the pressure relief cavity (3), the shape of the outer side surface of the top end opening of the air inlet cavity (2) is matched with the arc valve core bottom groove (5), and the arc valve core bottom groove (5) is not contacted with the bottom of the pressure relief cavity (3).
3. A spring direct load relief valve as defined in claim 1, wherein: the pressure release cavity (3) is a smooth cylindrical cavity, and the outer side surface of the pressure release valve core (4) is matched with the inner side wall of the pressure release cavity (3).
4. A spring direct load relief valve as defined in claim 1, wherein: the elastic sealing layer (6) is an elastic silicon rubber sealing layer, and a round arc surface is arranged at the top end opening position of the air inlet cavity (2).
5. A spring direct load relief valve as defined in claim 1, wherein: the observation part of the transparent observation window (12) is a convex lens, and an auxiliary lock nut is sleeved on the upper part of the threaded ejector rod (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322104092.5U CN220581758U (en) | 2023-08-07 | 2023-08-07 | Spring direct load type safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322104092.5U CN220581758U (en) | 2023-08-07 | 2023-08-07 | Spring direct load type safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220581758U true CN220581758U (en) | 2024-03-12 |
Family
ID=90113588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322104092.5U Active CN220581758U (en) | 2023-08-07 | 2023-08-07 | Spring direct load type safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220581758U (en) |
-
2023
- 2023-08-07 CN CN202322104092.5U patent/CN220581758U/en active Active
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