CN220185931U - Fluorine-lined diaphragm type check valve - Google Patents
Fluorine-lined diaphragm type check valve Download PDFInfo
- Publication number
- CN220185931U CN220185931U CN202321261690.7U CN202321261690U CN220185931U CN 220185931 U CN220185931 U CN 220185931U CN 202321261690 U CN202321261690 U CN 202321261690U CN 220185931 U CN220185931 U CN 220185931U
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- China
- Prior art keywords
- valve body
- fluorine
- sealing diaphragm
- diaphragm
- check valve
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- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 25
- 239000011737 fluorine Substances 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 25
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 6
- 230000002159 abnormal effect Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Lift Valve (AREA)
Abstract
The utility model relates to a fluorine lining diaphragm type check valve, which comprises a valve body, wherein a fluorine lining layer is arranged on the wall of an inner cavity of the valve body, a conical current guide body with one large end and one small end is arranged in the middle of the inner cavity of the valve body, a sealing diaphragm positioned on the periphery of the current guide body is arranged in the valve body, the sealing diaphragm is bowl-shaped, the opening of the sealing diaphragm faces to the larger end of the current guide body, a through hole for the small end of the current guide body to pass through is formed in the middle of the sealing diaphragm, and the edge part of the through hole is attached to the conical surface of the current guide body. The fluorine-lined diaphragm type check valve has novel structure, reasonable design and strong practicability, the fluorine-lined layer is added on the inner cavity wall of the valve body, so that the corrosion resistance can be greatly improved, the valve can stably work in corrosive media, the service life is prolonged, and the application range is wide; the check structure is simple, omits the spring structure, and is not easy to generate vibration and abnormal sound.
Description
Technical Field
The utility model relates to the field of valves, in particular to a fluorine-lined diaphragm type check valve.
Background
The check valve is an automatic valve for opening and closing the medium in the forward flow and the backward flow of the pipeline system, and the opening and closing part of the check valve is automatically opened or closed by the flowing force of the medium, and the check valve has the main functions of preventing the medium from flowing backwards, reducing the damage to the pipeline system and preventing accidents.
Most of the existing check valves have the following disadvantages: poor corrosion resistance, particularly in corrosive fluid medium environments; the structure is more complicated, and because the spring is adopted to realize automatic closing, vibration and abnormal sound are easy to generate.
Disclosure of Invention
In view of the above, the utility model aims to provide a fluorine-lined diaphragm type check valve with good corrosion resistance, long service life and wide application range.
The utility model is realized by adopting the following scheme: the utility model provides a lining fluorine diaphragm type check valve, includes the valve body, valve body inner chamber wall is equipped with lining fluorine layer, is equipped with the toper baffle that one end is big, one end is little in the middle of the valve body inner chamber, and the valve body is inside to be equipped with and to be located the peripheral sealing diaphragm of baffle, sealing diaphragm is bowl form and opening towards the great one end of baffle to set up the through-hole that supplies the baffle tip to pass in the middle of the sealing diaphragm, the conical surface of baffle is stuck to through-hole border portion.
Further, the valve body is formed by connecting a left valve body and a right valve body through bolts, the edge part of the opening of the sealing diaphragm is provided with an everting first folding edge, and the first folding edge is clamped between the left valve body and the right valve body.
Furthermore, the conical current-conducting body is made of PTFE, and the larger end of the conical current-conducting body is positioned in the left valve body and is connected with the fluorine lining layer at the inner side of the left valve body through the connecting ribs.
Further, flange parts are arranged at two ends of the left valve body and the right valve body, and the flange parts of the left valve body and the right valve body facing the middle end are connected together through bolts; the two ends of the fluorine lining layers inside the left valve body and the right valve body are respectively provided with a second folded edge turning to the end face of the flange part at the corresponding end, and the first folded edge of the sealing diaphragm is clamped between the second folded edges of the fluorine lining layers inside the left valve body and the right valve body facing to the middle end.
Compared with the prior art, the utility model has the following beneficial effects: the fluorine-lined diaphragm type check valve has novel structure, reasonable design and strong practicability, the fluorine-lined layer is added on the inner cavity wall of the valve body, so that the corrosion resistance can be greatly improved, the valve can stably work in corrosive media, the service life is prolonged, and the application range is wide; the check structure is simple, omits the spring structure, and is not easy to generate vibration and abnormal sound.
The present utility model will be further described in detail below with reference to specific embodiments and associated drawings for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent.
Drawings
FIG. 1 is a cross-sectional view of an embodiment of the present utility model;
the reference numerals in the figures illustrate: 100-valve body, 110-flange part, 200-lining fluorine layer, 210-second hem, 300-conical current-conducting body, 310-connecting rib, 400-sealing diaphragm, 410-through hole, 420-first hem.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
As shown in fig. 1, a fluorine-lined diaphragm type check valve comprises a valve body 100, wherein a fluorine-lined layer 200 is arranged on the inner cavity wall of the valve body 100, a conical current guide body 300 with one large end and one small end is arranged in the middle of the inner cavity of the valve body 100, a sealing diaphragm 400 positioned on the periphery of the current guide body is arranged in the valve body 100, the sealing diaphragm 400 is bowl-shaped and is opened towards the larger end of the current guide body, a through hole 410 for allowing the small end of the current guide body to pass through is formed in the middle of the sealing diaphragm, and the edge part of the through hole is attached to the conical surface of the current guide body; the fluorine lining diaphragm type check valve has the advantages that the fluorine lining layer is added on the inner cavity wall of the valve body, so that the corrosion resistance can be greatly improved, the valve can stably work in corrosive media, the service life is prolonged, and the application range is wide; the diaphragm type structure is adopted, when fluid flows from the larger end to the smaller end, the through hole of the sealing diaphragm can be opened, and when the fluid flows reversely, the elastic self-sealing of the sealing diaphragm is utilized; the check structure is simple, a spring structure is omitted, and vibration and abnormal sound are not easy to generate.
In this embodiment, the valve body 100 is formed by connecting a left valve body and a right valve body through bolts, the edge of the opening of the sealing diaphragm 400 is provided with a turned-out first folded edge 420, the first folded edge 420 is clamped between the left valve body and the right valve body, the sealing diaphragm is clamped and fixed through the left valve body and the right valve body, a specific structure is not required to be arranged for fixing, the internal structure of the valve body is simplified, and the manufacturing difficulty is reduced.
In this embodiment, the conical current guiding body 300 is made of PTFE, the larger end of the conical current guiding body 300 is located in the left valve body and is connected with the fluorine lining layer on the inner side of the left valve body through the connecting ribs 310, the larger end of the conical current guiding body is in a spherical structure, water intervals are reserved between the larger end of the conical current guiding body and the fluorine lining layer of the left valve body and between the conical current guiding body and the sealing diaphragms, the conical current guiding body, the connecting ribs and the fluorine lining layer of the left valve body can be integrally injection molded, and the whole structure is simple, easy to assemble, stable and reliable in operation.
In this embodiment, flange portions 110 are respectively disposed at two ends of the left valve body and the right valve body, fluorine lining layers are respectively disposed in the left valve body and the right valve body, and flange portions of the left valve body and the right valve body facing the middle end are connected together through bolts; the two ends of the fluorine lining layer inside the left valve body and the right valve body are respectively provided with a second flange 210 turning to the end face of the flange part at the corresponding end, the first flange of the sealing diaphragm is clamped between the second flange of the fluorine lining layer inside the left valve body and the right valve body towards the middle end, the fluorine lining layer completely isolates the valve body from the fluid medium, the fluid medium cannot be in contact with metal, and the valve has long-term corrosion resistance and ageing resistance.
Any of the above-described embodiments of the present utility model disclosed herein, unless otherwise stated, if they disclose a numerical range, then the disclosed numerical range is the preferred numerical range, as will be appreciated by those of skill in the art: the preferred numerical ranges are merely those of the many possible numerical values where technical effects are more pronounced or representative. Since the numerical values are more and cannot be exhausted, only a part of the numerical values are disclosed to illustrate the technical scheme of the utility model, and the numerical values listed above should not limit the protection scope of the utility model.
If the utility model discloses or relates to components or structures fixedly connected with each other, then unless otherwise stated, the fixed connection is understood as: detachably fixed connection (e.g. using bolts or screws) can also be understood as: the non-detachable fixed connection (e.g. riveting, welding), of course, the mutual fixed connection may also be replaced by an integral structure (e.g. integrally formed using a casting process) (except for obviously being unable to use an integral forming process).
In addition, terms used in any of the above-described aspects of the present disclosure to express positional relationship or shape have meanings including a state or shape similar to, similar to or approaching thereto unless otherwise stated.
Any part provided by the utility model can be assembled by a plurality of independent components, or can be manufactured by an integral forming process.
The above description is only a preferred embodiment of the present utility model, and is not intended to limit the utility model in any way, and any person skilled in the art may make modifications or alterations to the disclosed technical content to the equivalent embodiments. However, any simple modification, equivalent variation and variation of the above embodiments according to the technical substance of the present utility model still fall within the protection scope of the technical solution of the present utility model.
Claims (4)
1. A fluorine lined diaphragm check valve, characterized by: the valve comprises a valve body, wherein a fluorine lining layer is arranged on the wall of an inner cavity of the valve body, a conical current guiding body with one large end and one small end is arranged in the middle of the inner cavity of the valve body, a sealing diaphragm positioned on the periphery of the current guiding body is arranged in the valve body, the sealing diaphragm is bowl-shaped and is opened towards the large end of the current guiding body, a through hole for the small end of the current guiding body to pass through is formed in the middle of the sealing diaphragm, and the edge of the through hole is attached to the conical surface of the current guiding body.
2. The fluorine lined diaphragm check valve of claim 1, wherein: the valve body is formed by connecting a left valve body and a right valve body through bolts, an everting first folding edge is arranged at the edge part of the opening of the sealing diaphragm, and the first folding edge is clamped between the left valve body and the right valve body.
3. The fluorine lined diaphragm check valve of claim 2, wherein: the conical current-conducting body is made of PTFE, and the larger end of the conical current-conducting body is positioned in the left valve body and is connected with the fluorine lining layer at the inner side of the left valve body through the connecting ribs.
4. The fluorine lined diaphragm check valve of claim 2, wherein: the two ends of the left valve body and the right valve body are respectively provided with a flange part, and the flange parts of the left valve body and the right valve body facing the middle end are connected together through bolts; the two ends of the fluorine lining layers inside the left valve body and the right valve body are respectively provided with a second folded edge turning to the end face of the flange part at the corresponding end, and the first folded edge of the sealing diaphragm is clamped between the second folded edges of the fluorine lining layers inside the left valve body and the right valve body facing to the middle end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321261690.7U CN220185931U (en) | 2023-05-24 | 2023-05-24 | Fluorine-lined diaphragm type check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321261690.7U CN220185931U (en) | 2023-05-24 | 2023-05-24 | Fluorine-lined diaphragm type check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220185931U true CN220185931U (en) | 2023-12-15 |
Family
ID=89106183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321261690.7U Active CN220185931U (en) | 2023-05-24 | 2023-05-24 | Fluorine-lined diaphragm type check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220185931U (en) |
-
2023
- 2023-05-24 CN CN202321261690.7U patent/CN220185931U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |