CN219774906U - Chemical safety valve - Google Patents
Chemical safety valve Download PDFInfo
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- CN219774906U CN219774906U CN202320334275.3U CN202320334275U CN219774906U CN 219774906 U CN219774906 U CN 219774906U CN 202320334275 U CN202320334275 U CN 202320334275U CN 219774906 U CN219774906 U CN 219774906U
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- side plate
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- plugging
- wall
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- 239000000126 substance Substances 0.000 title claims abstract description 34
- 239000012530 fluid Substances 0.000 claims abstract description 28
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Safety Valves (AREA)
Abstract
The utility model discloses a chemical safety valve, and relates to the technical field of safety valves. The chemical safety valve comprises a valve body and a valve core mechanism; the valve body is internally provided with a fluid channel, a mouth ring and a piston cavity, and the fluid channel passes through the mouth ring; the lower end of the valve rod passes through the top of the valve body and then is connected with the plugging seat, the plugging seat is positioned above the mouth ring, the upper end of the plugging block is sleeved on the plugging seat, a cavity is formed between the bottom of the plugging seat and the inner wall of the lower end of the plugging block, and the side wall of the plugging block is provided with a step matched with the mouth ring; the stress component is arranged in the cavity; the stress assembly comprises an outer side plate; the outer side plate is of an annular structure, the side wall of the outer side plate bends towards the direction of the step, and the outer wall of the outer side plate is abutted with the blocking block on the inner wall of the step. Therefore, the chemical safety valve provided by the embodiment of the utility model has the advantages that the force applied to the bottom of the plugging block is acted on the side wall of the plugging block, so that the side wall of the plugging block is tightly contacted with the orifice ring, the fluid channel is sealed, and the trouble that the safety valve needs to excessively rotate is avoided.
Description
Technical Field
The utility model relates to the technical field of safety valves, in particular to a chemical safety valve.
Background
Safety valves are used in chemical medium transport. The relief valve prevents the medium pressure in the pipe or the apparatus from exceeding a specified value by discharging the medium to the outside of the system when the medium pressure in the apparatus or the pipe rises above the specified value.
The chemical safety valve is usually a piston valve, and the piston is used for cutting off the channel, so that the flow breaking is realized. Most of the existing chemical safety valves rotate through a handle, so that a piston moves downwards to intercept a fluid channel. Only by rotating the handle excessively, the piston and the fluid channel can be ensured to be in a close contact and closed state. However, if the operator does not excessively rotate the chemical safety valve, an overflow phenomenon is caused, so that safety accidents occur.
Disclosure of Invention
The embodiment of the utility model solves the problem that the safety valve overflows when the safety valve does not overflow and rotate in the prior art by providing the chemical safety valve.
The embodiment of the utility model provides a chemical safety valve, which comprises a valve body and a valve core mechanism; the valve body is internally provided with a fluid channel, a mouth ring and a piston cavity, two ends of the fluid channel are respectively provided with a valve inlet and a valve outlet, and the fluid channel passes through the mouth ring; the valve core mechanism comprises a plugging seat, a plugging block, a valve rod and a stress assembly; the lower end of the valve rod penetrates through the top of the valve body and then is connected with the plugging seat, the plugging seat is positioned above the mouth ring, the upper end of the plugging block is sleeved on the plugging seat, a cavity is formed between the bottom of the plugging seat and the inner wall of the lower end of the plugging block, and the side wall of the plugging block is provided with a step matched with the mouth ring; the stress component is arranged in the cavity; the stress assembly and the plugging block are flexible structures, and the stress assembly comprises an outer side plate; the outer side plate is of an annular structure, the side wall of the outer side plate bends towards the direction of the step, and the outer wall of the outer side plate is abutted to the inner wall of the step by the plugging block.
In one possible implementation, the stress assembly further comprises a force plate; the stress plate is of a spherical structure and is arranged on the bottom wall of the plugging block; the lower end of the outer side plate is fixedly connected with the top of the stress plate, and the upper end of the outer side plate is fixedly connected with the bottom of the plugging seat.
In one possible implementation, the stress assembly further comprises symmetrically disposed inner side plates; the inner side plate is of an arc-shaped structure and is positioned in the outer side plate; the upper end of the inner side plate is fixedly connected with the bottom of the plugging seat, the lower end of the inner side plate is fixedly connected with the inner wall of the outer side plate, and the side wall of the inner side plate is bent towards the direction of the stress plate.
In one possible implementation, the force plate is centered in the direction of extension of the axis of the valve stem.
In one possible implementation manner, the chemical safety valve further comprises a drainage inclined plate which is arranged oppositely; the valve inlet is inserted with a cylinder body, one end of the drainage inclined plate is connected with the inner wall of the cylinder body, and the other end of the drainage inclined plate is a free end and inclines towards the direction of the valve inlet.
In one possible implementation, the chemical safety valve further comprises a drainage plate; one end of the drainage plate is connected with the inner wall of the inlet of the fluid channel, and the other end of the drainage plate is a free end and is obliquely arranged towards the direction of the piston cavity.
In one possible implementation, the chemical safety valve further comprises a valve cover; the valve cover is arranged at the top of the valve body, and the lower end of the valve rod penetrates through the top of the valve cover and then is connected with the plugging seat.
One or more technical solutions provided in the embodiments of the present utility model at least have the following technical effects or advantages:
the embodiment of the utility model provides a chemical safety valve, which comprises a valve body and a valve core mechanism. The valve core mechanism comprises a plugging seat, a plugging block, a valve rod and a stress assembly. The stress assembly includes an outer panel. When an operator rotates the handle of the chemical safety valve, the blocking seat and the blocking block are positioned in the fluid channel, and the fluid medium entering the piston cavity through the valve inlet can push the bottom of the piston, so that the outer side plate is bent by upward force. After the outer side plate is bent, the side wall of the plugging block in contact with the inner wall of the step can be extruded, so that the side wall of the plugging block is in close contact with the mouth ring, the fluid channel is sealed, and the trouble that the chemical safety valve needs to overflow and rotate is avoided. Therefore, the chemical safety valve provided by the embodiment of the utility model has the advantages of simple structure and reliable performance, and safety accidents are prevented.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments of the present utility model will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural diagram of a chemical safety valve according to an embodiment of the present utility model;
fig. 2 is a perspective view of a chemical safety valve according to an embodiment of the present utility model.
Reference numerals: 1-a valve body; 11-valve inlet; 12-valve outlet; 13-an oral ring; 14-steps; 15-a piston chamber; 2-drainage plates; 3-a valve core mechanism; 31-a plugging seat; 32-a plugging block; 33-cavity; 34-stress assembly; 341-a force-bearing plate; 342-an outer panel; 343-inner panel; 35-valve stem; 4-a valve cover; 5-drainage sloping plates; 6, a cylinder; 7-protecting cover; 8-flange plate.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. 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.
In the description of the embodiments of the present utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the embodiments of the present utility model and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically coupled, or may be directly coupled. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.
As shown in fig. 1 and 2, the embodiment of the utility model provides a chemical safety valve, which comprises a valve body 1 and a valve core mechanism 3. The valve body 1 is internally provided with a fluid channel, a mouth ring 13 and a piston cavity 15, wherein the two ends of the fluid channel are respectively provided with a valve inlet 11 and a valve outlet 12, and the fluid channel passes through the mouth ring 13. The valve core mechanism 3 comprises a plugging seat 31, a plugging block 32, a valve rod 35 and a stress assembly 34. The lower extreme of valve rod 35 passes behind the top of valve body 1 and connects in shutoff seat 31, and shutoff seat 31 is located the top of mouth ring 13, and shutoff seat 31 is located to the upper end cover of shutoff piece 32, and the cavity 33 is formed with the inner wall of the lower extreme of shutoff piece 32 to the bottom of shutoff seat 31, and the lateral wall of shutoff piece 32 is provided with the step 14 with mouth ring 13 matched with. A stress assembly 34 is disposed within the cavity 33. The stress element 34 and the block 32 are flexible structures. The stress assembly 34 includes an outer panel 342. The outer plate 342 has an annular structure, the side wall of the outer plate 342 is bent toward the step 14, and the outer wall of the outer plate 342 and the block 32 are abutted against the inner wall of the step 14.
It should be noted that, the plugging seat 31 and the plugging block 32 according to the embodiment of the present utility model are pistons.
When the valve works, after an operator rotates the handle of the chemical safety valve normally, the piston moves downwards to cut off the fluid channel, at the moment, the mouth ring 13 is abutted with the blocking block 32, and a fluid medium enters the piston cavity 15 through the valve inlet 11 to push the bottom of the piston, so that the outer side plate 342 is bent by upward force. After the outer side plate 342 is bent, the side wall of the plugging block 32 is extruded, and meanwhile, the side wall of the plugging block 32 is contacted with the inner wall of the step 14, so that the side wall of the plugging block 32 is tightly contacted with the mouth ring 13, and then the fluid channel is sealed, and the trouble that the chemical safety valve needs to overflow and rotate is avoided.
Further, the outer plate 342 has a ring-shaped structure with a large upper opening and a small lower opening. The design ensures that the outer plate 342 will bend toward one side of the step 14 after being forced.
The stress assembly 34 also includes a force plate 341. The stress plate 341 is in a spherical structure, and the stress plate 341 is mounted on the bottom wall of the plugging block 32. The lower end of the outer side plate 342 is fixedly connected with the top of the stress plate 341, and the upper end of the outer side plate 342 is fixedly connected with the bottom of the plugging seat 31.
It should be noted that, the width of the end surface of the outer side plate 342 contacting the bottom of the plugging seat 31 and the width of the end surface of the outer side plate 342 contacting the top of the force receiving plate 341 are larger than that of the middle portion, so that the connection between the outer side plate 342 and the force receiving plate 341 is more stable, safer and more reliable.
The stress assembly 34 also includes a symmetrically disposed inner panel 343. The inner side plate 343 has an arc structure, and the inner side plate 343 is located inside the outer side plate 342. The upper end of the inner side plate 343 is fixedly connected with the bottom of the plugging seat 31, the lower end of the inner side plate 343 is fixedly connected with the inner wall of the outer side plate 342, and the side wall of the inner side plate 343 is bent towards the direction of the stress plate 341. The center of the force receiving plate 341 is located in the extending direction of the axis of the valve stem 35.
It should be noted that, the force plate 341 is forced to move upwards, so as to force the outer plate 342 and the inner plate 343 to deform. It is further ensured that the outer side plate 342 is bent toward the side wall of the block 32.
The chemical safety valve also comprises a drainage sloping plate 5 which is arranged oppositely. The valve inlet 11 is inserted with a cylinder 6, one end of the drainage sloping plate 5 is connected with the inner wall of the cylinder 6, and the other end of the drainage sloping plate 5 is a free end and inclines towards the direction of the valve inlet 11.
It should be noted that, the two opposite drainage inclined plates 5 enable the fluid medium to be split into the piston cavity 15, so that the fluid medium entering the piston cavity 15 is prevented from being impacted too much. As shown, the cartridge 6 is bolted to the flange 8 at the valve inlet 11.
The chemical safety valve also comprises a drainage plate 2. One end of the flow guiding plate 2 is connected with the inner wall of the inlet of the fluid channel, one end of the flow guiding plate 2 is a free end and is obliquely arranged towards the direction of the piston cavity 15.
It should be noted that, the drainage plate 2 is disposed opposite to the adjacent drainage sloping plate 5, and the fluid medium is drained to the drainage plate 2 through the drainage sloping plate 5, so that the fluid medium flows towards the bottom of the piston cavity 15, and the bottom of the piston cavity 15 is uniformly stressed.
The chemical safety valve further comprises a valve cover 4. The valve cover 4 is arranged at the top of the valve body 1, and the lower end of the valve rod 35 penetrates through the top of the valve cover 4 and then is connected with the plugging seat 31.
The valve cap 4 is connected to the valve body 1 by a bolt, and has a sealing function, a certain strength, and prevents the fluid inside from flowing out.
Further, the upper portion of the valve rod 35 is provided with the protection cover 7, so that the valve rod 35 can be effectively protected from being corroded and damaged by the outside, and the service life of the valve rod under a severe working environment is prolonged.
In this specification, each embodiment is described in a progressive manner, and the same or similar parts of each embodiment are referred to each other, and each embodiment is mainly described as a difference from other embodiments.
The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the present utility model; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (7)
1. The chemical safety valve is characterized by comprising a valve body (1) and a valve core mechanism (3);
a fluid channel, a mouth ring (13) and a piston cavity (15) are arranged in the valve body (1), two ends of the fluid channel are respectively provided with a valve inlet (11) and a valve outlet (12), and the fluid channel penetrates through the mouth ring (13);
the valve core mechanism (3) comprises a plugging seat (31), a plugging block (32), a valve rod (35) and a stress assembly (34);
the lower end of the valve rod (35) penetrates through the top of the valve body (1) and then is connected with the plugging seat (31), the plugging seat (31) is located above the mouth ring (13), the upper end of the plugging block (32) is sleeved on the plugging seat (31), a cavity (33) is formed between the bottom of the plugging seat (31) and the inner wall of the lower end of the plugging block (32), and a step (14) matched with the mouth ring (13) is arranged on the side wall of the plugging block (32);
-the stress assembly (34) is arranged within the cavity (33);
the stress assembly (34) and the plugging block (32) are flexible structures, and the stress assembly (34) comprises an outer side plate (342);
the outer side plate (342) is of an annular structure, the side wall of the outer side plate (342) is bent towards the direction of the step (14), and the outer wall of the outer side plate (342) is abutted with the inner wall of the block (32) at the step (14).
2. The chemical safety valve of claim 1, the stress assembly (34) further comprising a force plate (341);
the stress plate (341) is of a spherical structure, and the stress plate (341) is arranged on the bottom wall of the plugging block (32);
the lower end of the outer side plate (342) is fixedly connected with the top of the stress plate (341), and the upper end of the outer side plate (342) is fixedly connected with the bottom of the plugging seat (31).
3. The chemical safety valve of claim 2, the stress assembly (34) further comprising a symmetrically disposed inner side plate (343);
the inner side plate (343) is of an arc-shaped structure, and the inner side plate (343) is positioned inside the outer side plate (342);
the upper end of the inner side plate (343) is fixedly connected with the bottom of the plugging seat (31), the lower end of the inner side plate (343) is fixedly connected with the inner wall of the outer side plate (342), and the side wall of the inner side plate (343) is bent towards the direction of the stress plate (341).
4. A chemical safety valve according to claim 2 or 3, characterized in that the centre of the force plate (341) is located in the direction of extension of the axis of the valve stem (35).
5. A chemical safety valve according to claim 1, further comprising oppositely arranged drainage inclined plates (5);
the valve inlet (11) is inserted with a cylinder body (6), one end of the drainage inclined plate (5) is connected with the inner wall of the cylinder body (6), and the other end of the drainage inclined plate (5) is a free end and inclines towards the direction of the valve inlet (11).
6. A chemical safety valve according to claim 5, further comprising a drainage plate (2);
one end of the drainage plate (2) is connected with the inner wall of the inlet of the fluid channel, and the other end of the drainage plate (2) is a free end and is obliquely arranged towards the direction of the piston cavity (15).
7. A chemical safety valve according to claim 1, further comprising a valve cover (4);
the valve cover (4) is arranged at the top of the valve body (1), and the lower end of the valve rod (35) penetrates through the top of the valve cover (4) and then is connected with the plugging seat (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320334275.3U CN219774906U (en) | 2023-02-28 | 2023-02-28 | Chemical safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320334275.3U CN219774906U (en) | 2023-02-28 | 2023-02-28 | Chemical safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219774906U true CN219774906U (en) | 2023-09-29 |
Family
ID=88107658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320334275.3U Active CN219774906U (en) | 2023-02-28 | 2023-02-28 | Chemical safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219774906U (en) |
-
2023
- 2023-02-28 CN CN202320334275.3U patent/CN219774906U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |