CN103899785A - Fluorine-lining membrane valve resistant to corrosion - Google Patents
Fluorine-lining membrane valve resistant to corrosion Download PDFInfo
- Publication number
- CN103899785A CN103899785A CN201210588200.4A CN201210588200A CN103899785A CN 103899785 A CN103899785 A CN 103899785A CN 201210588200 A CN201210588200 A CN 201210588200A CN 103899785 A CN103899785 A CN 103899785A
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- China
- Prior art keywords
- valve
- fluoroplastic
- corrosion
- diaphragm
- hole
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- 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
- 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
- F16K7/14—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 arranged to be deformed against a flat seat
- F16K7/16—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 arranged to be deformed against a flat seat the diaphragm being mechanically actuated, e.g. by screw-spindle or cam
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a fluorine-lining membrane valve resistant to corrosion for overcoming the shortcomings in the prior art. The fluorine-lining membrane valve comprises a valve body, a valve deck, a valve rod, a membrane piece, a membrane gasket, a pressing block and a hand wheel. A bolt is arranged in the membrane piece, and the bolt and the membrane piece form a fixed integral body. Preferentially, a through hole is formed in the bolt, fluoroplastic is dissolved in the through hole, and the fluoroplastic in the through hole and fluoroplastic in the membrane piece are dissolved integrally. The fluorine-lining membrane valve has the advantages that the sealing performance is reliable, and the service life is long.
Description
Technical field
The present invention relates to a kind of valve, particularly a kind of membrane valve for strong corrosive medium conveyance conduit.
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 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 out, can bring serious consequence to surrounding enviroment and personal safety.When adopting, membrane valve carries that chlorine etc. is poisonous, also exist similar shortcoming when 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, make the part such as valve rod, flap that is positioned at barrier film top not be 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.
In recent years, the specific (special) requirements of carrying according to poisonous, easy leaking medium, the some defects that use for existing valve, have announced in technology much now about the technological scheme of full-lining diaphragm valve that prevents chlorine leakage.Such as, on April 20th, 2005 notice of authorization, the patent No. is that 200420027434.2 patent names are the patent of invention of Fluoroplastic full-lining diaphragm, Fluoroplastic full-lining diaphragm is disclosed, comprise valve body, valve gap assembly, valve rod, handwheel, briquetting, valve body is built-in with sealed liner, briquetting below is equipped with barrier film pad, above-mentioned barrier film pad below is equipped with diaphragm, above-mentioned valve body bottom is convex body, above-mentioned diaphragm and above-mentioned convex body apical grafting, on above-mentioned valve interior wall, be equipped with groove, above-mentioned sealed liner infiltrates in above-mentioned groove.The advantage of this patent is that this membrane valve has good seal performance, corrosion-resistant, safe and reliable, long service life.But, from practice, this valve still has certain deficiency, it is definitely reliable that sealing is also not really, after long-term use, the diaphragm of this membrane valve is easily drawn bad, cause diaphragm to separate and come off with briquetting with barrier film pad, cause valve to close, the phenomenon that causes pipeline to stop and even have an accident completely.
Summary of the invention
Easy-to-draw bad, the deficiency that sealing reliability is not good of the diaphragm of the membrane valve that what the present invention will solve is exists in prior art, provides a kind of rational in infrastructure, diaphragm to be difficult for being drawn bad novel fluoroplastics full-lining diaphragm valve.
For achieving the above object, the present invention is achieved by the following technical solutions: a kind of corrosion-resistant lining fluorine membrane valve, comprise valve body, valve gap, valve rod, diaphragm, barrier film pad, briquetting, handwheel, diaphragm is built-in with bolt, described bolt and diaphragm are a fixing entirety, it is characterized in that being processed with through hole on described bolt, in through hole, be filled with fluoroplastic and be integrated with the fluoroplastic structure of diaphragm.
As improvement of the present invention, the end of described bolt is ellipsoid.
As a further improvement on the present invention, the below of the sealing surface of described valve body is processed with through hole, is filled with fluoroplastic and is integrated with outside fluoroplastic structure in through hole.
As a further improvement on the present invention, described fluoroplastic are exhaustive fluorinated ethylene propylene.
As a further improvement on the present invention, described valve body is corrosion resistant alloy Steel material.
Adopt technique scheme, tool of the present invention had the following advantages:
1, sealing is more reliable.Screw on diaphragm is because be processed with two through holes, and the fluoroplastic that heat is covered dissolve in hole and with outside fluoroplastic and are integrally formed, and this bolt and diaphragm are completely fixed, and has solved the problem that valve skids and cannot tighten up in the time of assembling completely; This improvement simultaneously has also solved valve and has in use easily drawn bad diaphragm, causes diaphragm to separate and come off with briquetting with barrier film pad, 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 fluoroplastic and be integrally formed with outside fluoroplastic, the problem of fluoroplastic 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: the general structure schematic diagram of the embodiment of the present invention.
Fig. 2: the structure enlarged diagram of embodiment of the present invention septation sheet.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail:
A kind of fluoroplastics full-lining diaphragm valve as shown in Figure 1, is made up of valve body 2, valve gap 3, valve rod 4, diaphragm 5, barrier film pad, briquetting, handwheel 1 etc.Wherein bolt end is ellipsoid, is processed with two through holes 6 on it, is dissolved with fluoroplastic and dissolves in one with the fluoroplastic of diaphragm in through hole, and the below of the sealing surface of valve body is processed with through hole, is dissolved with fluoroplastic and is integrally formed with outside fluoroplastic in through hole.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (5)
1. a corrosion-resistant lining fluorine membrane valve, comprise valve body, valve gap, valve rod, diaphragm, barrier film pad, briquetting, handwheel, diaphragm is built-in with bolt, described bolt and diaphragm are a fixing entirety, it is characterized in that being processed with through hole on described bolt, in through hole, be filled with fluoroplastic and be integrated with the fluoroplastic structure of diaphragm.
2. corrosion-resistant lining fluorine membrane valve according to claim 1, the end that it is characterized in that described bolt is ellipsoid.
3. corrosion-resistant lining fluorine membrane valve according to claim 1, is characterized in that the below of the sealing surface of described valve body is processed with through hole, is filled with fluoroplastic and is integrated with outside fluoroplastic structure in through hole.
4. corrosion-resistant lining fluorine membrane valve according to claim 1, is characterized in that described fluoroplastic are exhaustive fluorinated ethylene propylene.
5. corrosion-resistant lining fluorine membrane valve according to claim 1, is characterized in that described valve body is corrosion resistant alloy Steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210588200.4A CN103899785A (en) | 2012-12-29 | 2012-12-29 | Fluorine-lining membrane valve resistant to corrosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210588200.4A CN103899785A (en) | 2012-12-29 | 2012-12-29 | Fluorine-lining membrane valve resistant to corrosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103899785A true CN103899785A (en) | 2014-07-02 |
Family
ID=50991291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210588200.4A Pending CN103899785A (en) | 2012-12-29 | 2012-12-29 | Fluorine-lining membrane valve resistant to corrosion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103899785A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114719048A (en) * | 2022-04-17 | 2022-07-08 | 江苏金晟元特种阀门股份有限公司 | Fluoroplastic full-lining diaphragm valve |
-
2012
- 2012-12-29 CN CN201210588200.4A patent/CN103899785A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114719048A (en) * | 2022-04-17 | 2022-07-08 | 江苏金晟元特种阀门股份有限公司 | Fluoroplastic full-lining diaphragm valve |
| CN114719048B (en) * | 2022-04-17 | 2023-10-03 | 江苏金晟元特种阀门股份有限公司 | Fluoroplastic full-lining diaphragm valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | 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: 20140702 |