CN103672017A - Integrated full-lining membrane valve - Google Patents
Integrated full-lining membrane valve Download PDFInfo
- Publication number
- CN103672017A CN103672017A CN201210318194.0A CN201210318194A CN103672017A CN 103672017 A CN103672017 A CN 103672017A CN 201210318194 A CN201210318194 A CN 201210318194A CN 103672017 A CN103672017 A CN 103672017A
- Authority
- CN
- China
- Prior art keywords
- valve
- diaphragm
- hole
- polyflon
- lining
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0236—Diaphragm cut-off apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0272—Construction of housing; Use of materials therefor of lift valves valves provided with a lining
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
- F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
- F16K7/126—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm the seat being formed on a rib perpendicular to the fluid line
Abstract
The invention discloses an integrated full-lining membrane valve. The integrated full-lining membrane valve comprises a valve rod, a valve body, a valve deck, a membrane piece and a hand wheel, wherein a bolt is arranged in the membrane piece and provided with a through hole, and polytetrafluoroethylene resin is melted in the through hole and is melted with the polytetrafluoroethylene resin in the membrane piece into a whole, so that the bolt and the membrane piece are a fixed entirety. The integrated full-lining membrane valve is good in sealing performance, the membrane piece is not damaged easily through pulling, and the service life is long.
Description
Technical field
The present invention relates to a kind of valve, particularly a kind of chlorine conveying pipelines special valve, belongs to chemical industry dedicated medium conveyance conduit valve field.
Background technique
In the past, the valve of chemical industry for making chlorine and alkali industry, was generally the common valve that sealability is general.Common valve is from material or structure does not possess special-purpose feature, and it is bad that on the one hand this valve respectively seals the sealability at position, can not stop well dielectric leakage; Under deep-etching, poisonous and hazardous process conditions, often poor sealing performance, easily leaks on the other hand, housing is easily bored a hole, and working life is short, can not meet the specific (special) requirements of permanently effective conveying poisonous medium, once and chlorine leaks, can bring serious consequence to surrounding enviroment and personal safety.When adopting, membrane valve carries that chlorine etc. is poisonous, also exist similar shortcoming during easy leaking medium, because membrane valve is as a kind of stop valve of special shape, its open-shut device is a barrier film that soft material is made, by barrier film, lower body inner chamber and upper valve cap inner chamber are separated, the parts such as valve rod, flap that make to be positioned at barrier film top are not subject to dielectric corrosion, and can not produce medium and leak outside, its advantage is to have saved packing box seal structure.But the diaphragm of this membrane valve especially easily damages, should be depending on operating mode and dielectric property and regularly replace.Although the membrane valve of prior art has been done many improvement at seal aspect, but, from practice, still there is certain deficiency, it is definitely reliable that sealing can also be not really, and uses for a long time metacneme sheet easily to be drawn bad, causes that diaphragm and barrier film pad are separated with briquetting to come off, cause valve to close, the phenomenon that causes pipeline to stop and even have an accident completely.
Summary of the invention
The present invention will solve is easy-to-draw bad, the deficiency that sealing reliability is not good of the diaphragm of the membrane valve that exists in prior art, provides a kind of rational in infrastructure, diaphragm to be difficult for being drawn bad integrated type full-lining diaphragm valve.
The present invention is achieved through the following technical solutions technical goal.
A kind of integrated type full-lining diaphragm valve, comprise valve rod, valve body, valve gap, diaphragm, handwheel, diaphragm is built-in with bolt, its improvements are: described bolt has been provided with through hole, in through hole, be dissolved with polyflon and dissolve in one with the polyflon in diaphragm, making described bolt and diaphragm is a fixing integral body.
As the present invention, further improve, described bolt end is cuboid.
As the present invention, further improve, the sealing surface below of described valve body is processed with through hole, is dissolved with polyflon and is integrally formed with outside polyflon in through hole.
The present invention compared with prior art, has following good effect:
1, sealing is more reliable.Screw on diaphragm is because be processed with two through holes, the polyflon that heat is covered dissolves in hole and with outside polyflon and is integrally formed, this bolt and diaphragm are completely fixed, have solved the problem that valve skids and cannot tighten up when assembling completely; Simultaneously this improvement has also solved valve and has in use easily drawn bad diaphragm, causes that diaphragm and barrier film pad are separated with briquetting to come off, the problem that valve cannot be closed completely.
2, longer service life.Below the sealing surface of valve body, be processed with through hole, in through hole, be dissolved with polyflon and be integrally formed with outside polyflon, the problem of polyflon aliquation bulge when this has solved again chemical pipeline and pipeline and vacuumizes, the working life of significantly having improved valve.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the A-A section enlarged diagram in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail:
Integrated type full-lining diaphragm valve as shown in Figure 1, comprise valve rod 4, valve body 2, valve gap 3, diaphragm 5, handwheel 1, diaphragm 5 is built-in with bolt 7, bolt 7 has been provided with through hole 6, in through hole 6, be dissolved with polyflon and dissolve in one with the polyflon in diaphragm 5, making described bolt 7 and diaphragm 5 is a fixing integral body.In the present embodiment, bolt 7 ends are cuboid; The sealing surface below of valve body 2 is processed with through hole, is dissolved with polyflon and is integrally formed with outside polyflon in through hole.
Claims (3)
1. an integrated type full-lining diaphragm valve, comprise valve rod (4), valve body (2), valve gap (3), diaphragm (5), handwheel (1), diaphragm (5) is built-in with bolt (7), it is characterized in that: described bolt (7) has been provided with through hole (6), in through hole (6), be dissolved with polyflon and dissolve in one with the polyflon in diaphragm (5), making bolt (7) and diaphragm (5) is a fixing integral body.
2. integrated type full-lining diaphragm valve according to claim 1, is characterized in that: described bolt (7) end is cuboid.
3. integrated type full-lining diaphragm valve according to claim 1, is characterized in that: the sealing surface below of described valve body (2) is processed with through hole, is dissolved with polyflon and is integrally formed with outside polyflon in through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210318194.0A CN103672017A (en) | 2012-09-01 | 2012-09-01 | Integrated full-lining membrane valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210318194.0A CN103672017A (en) | 2012-09-01 | 2012-09-01 | Integrated full-lining membrane valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103672017A true CN103672017A (en) | 2014-03-26 |
Family
ID=50310424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210318194.0A Pending CN103672017A (en) | 2012-09-01 | 2012-09-01 | Integrated full-lining membrane valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103672017A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114046364A (en) * | 2021-10-12 | 2022-02-15 | 魏海武 | Steel cylinder valve and valve assembling device |
-
2012
- 2012-09-01 CN CN201210318194.0A patent/CN103672017A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114046364A (en) * | 2021-10-12 | 2022-02-15 | 魏海武 | Steel cylinder valve and valve assembling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140326 |