CN2854238Y - Valve special for chloroalkali evaporation - Google Patents
Valve special for chloroalkali evaporation Download PDFInfo
- Publication number
- CN2854238Y CN2854238Y CN 200520128909 CN200520128909U CN2854238Y CN 2854238 Y CN2854238 Y CN 2854238Y CN 200520128909 CN200520128909 CN 200520128909 CN 200520128909 U CN200520128909 U CN 200520128909U CN 2854238 Y CN2854238 Y CN 2854238Y
- Authority
- CN
- China
- Prior art keywords
- valve
- sealing
- evaporation
- positioning boss
- chlorine
- 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.)
- Expired - Fee Related
Links
Abstract
A special chlorin-alkali evaporation valve belonging to medium conduit pipe valve field in chemical industry is provided, which composes a valve body and a sealing piece arranged on a valve rod. A taper-shaped locating protruding platform is arranged on the part where the sealing piece contacting with the valve body. A locating clamp platform matching with the taper-shaped locating protruding platform is processed on related part on the valve body. With above-mentioned improvements, the taper-shaped locating protruding platform which can fast guide and locate in the closing of the valve is arranged in the front end of the sealing piece, a high corrosion resistant tetrafluoroethylene seal ring is arranged on the sealing piece and a reverse sealing device is arranged on the valve rod. Thereby, the chlor-alkali evaporation valve has the advantages of fine sealing effect and complete closing in one time.
Description
Technical field
The utility model belongs to chemical industry medium transport pipeline special valve field, specifically is a kind of evaporation of chlorine-alkali special valve.
Background technique
Chemical enterprise make or use as chlorine, liquid chlorine, media such as liquid caustic soda, all has highly corrosive, and the gas of the highly corrosive of by-product, and need by continuous the carrying of pipeline, for the ease of the maintenance of equipment or to the control of rate-of flow, the technician just installs many group special valves as required on delivery line, because common stop valve project organization is difficult to satisfy the specific (special) requirements of chemical enterprise, so relevant technician has designed special-purpose chlor-alkali special valve, the specific (special) requirements of chemical industry has been satisfied in the appearance of these special valves substantially, but in the using process of enterprise, find owing to arrange according to the production scene pipeline, the difference of position, when these special valves when laterally installing, be subjected to the influence of Sealing deadweight, and contain a large amount of salinity particles in the alkali, thus be difficult to close fully according to working specification valve is disposable, and there is the deficiency of leaking hidden danger in it easily closing the back.
The model utility content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, provides a kind of Sealing that can make to locate fast when closing, can disposablely close fully, and the evaporation of chlorine-alkali special valve of good airproof performance.
For achieving the above object, the utility model is achieved through the following technical solutions:
It is a kind of evaporation of chlorine-alkali special valve, comprise valve body, and be arranged on Sealing on the valve rod, and it is characterized in that the position that Sealing contacts with the valve body pressing is provided with coniform positioning boss, the corresponding site on the valve body is processed with the location card platform that is complementary with this coniform positioning boss.
For strengthening the overall tightness of valve, it is dovetail shaped and sealing structure groove in the form of a ring that the lower end surface of Sealing is processed with section, the tetrafluoroethylene seal ring is set in the dovetail shaped seal groove, the position of corresponding tetrafluoroethylene seal ring on the valve body, be respectively arranged with the corrosion resisting alloy seal joint of projection, the alloy seal joint is positioned at the outside of coniform positioning boss, and the radially section of sealing pressure ring end is slick and sly arc-shaped structure.
According to the difference of selected material, coniform positioning boss and Sealing are integral structure, or are split-type structural, and promptly coniform positioning boss is inlaid on the Sealing.
For further strengthening the overall tightness of valve, can towards the valve pocket side umbrella sealing bayonet socket be set at valve gap, the umbrella back seal circle that matches is set on the valve rod, and umbrella back seal circle lower end surface is to the height of the distance between the end face of umbrella sealing bayonet socket greater than coniform positioning boss.
The utility model is after above-mentioned improvement, because the front end of Sealing is provided with when valve closing, the coniform positioning boss that can lead fast, locate, and on Sealing, also can install the tetrafluoroethylene seal ring of highly corrosion resistant additional, and on valve rod, install the back seal device additional, so have good sealing effect, the disposable advantage completely of closing.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described in further detail:
Fig. 1: the utility model example structure schematic representation.
Among the figure: 1 handwheel; 2 valve rods; 3 valve gaps; 4 umbrellas sealing bayonet socket; 5 umbrella back seal circles; 6 Sealings; 7 tetrafluoroethylene seal rings; 8 seal joints; The coniform positioning boss of 9 Sealings; 10 valve bodies.
Embodiment
As shown in Figure 1, this evaporation of chlorine-alkali special valve, comprise valve body 10, and be arranged on Sealing 6 on the valve rod 2, it is characterized in that the position that Sealing 6 contacts with valve body 10 pressings is provided with coniform positioning boss 9, the corresponding site on the valve body 10 is processed with the location card platform that is complementary with this coniform positioning boss.
For strengthening the overall tightness of valve, it is dovetail shaped and sealing structure groove in the form of a ring that the lower end surface of Sealing 6 is processed with section, tetrafluoroethylene seal ring 7 is set in the dovetail shaped seal groove, the position of corresponding tetrafluoroethylene seal ring 7 on the valve body 10, be respectively arranged with the corrosion resisting alloy seal joint 8 of projection, alloy seal joint 8 is positioned at the outside of coniform positioning boss 9, and sealing pressure ring 8 is slick and sly arc-shaped structure for the tightness after guaranteeing to contact, the radially section of end.
According to the difference of selected material, coniform positioning boss 9 is an integral structure with Sealing 6, or is split-type structural, and promptly coniform positioning boss 9 is inlaid on the Sealing 6.
Like this, rotate handwheel 1 and make Sealing 6 with the moving of valve rod 2, just can be under the guiding of coniform positioning boss 9, positioning action, the disposable seal joint 8 that compresses fast on the valve body 10 reaches and guarantees the effect that seals.Be sealability that guarantees tetrafluoroethylene seal ring 7 and the fastness that combines with Sealing 6, tetrafluoroethylene adopts inside and outside isobaric, the mode of sintering sealing, back seal is worked in the seal groove, so that both firm being combined as a whole, the problem that comes off, become flexible, be out of shape in use can not appear, safety does not have leakage, simultaneously, does not destroy the tetrafluoroethylene self characteristics again.
For further strengthening the overall tightness of valve, can towards the valve pocket side umbrella sealing bayonet socket 4 be set at valve gap 3, the umbrella back seal circle 5 that matches is set on the valve rod 2, and umbrella back seal circle 5 lower end surfaces are to the height of the distance between the end face of umbrella sealing bayonet socket 4 greater than coniform positioning boss 9.Behind Open valve, umbrella back seal circle 5 just compresses the umbrella sealing bayonet socket 4 on the valve gap 3 gradually, like this, has just realized the two way sealed of valve, has improved the overall sealing performance of valve like this.
The utility model is after above-mentioned improvement, because the front end of Sealing 6 is provided with when valve closing, the coniform positioning boss 9 that can lead fast, locate, and also can on Sealing, install the tetrafluoroethylene seal ring 7 of highly corrosion resistant additional, and on valve rod 2, install the back seal device additional, so have good sealing effect, the disposable advantage completely of closing.
Claims (6)
1, a kind of evaporation of chlorine-alkali special valve, comprise valve body, the valve gap that matches, and be arranged on Sealing on the valve rod, it is characterized in that the position that Sealing contacts with the valve body pressing is provided with coniform positioning boss, the corresponding site on the valve body is processed with the location card platform that is complementary with this coniform positioning boss.
2, evaporation of chlorine-alkali special valve according to claim 1, it is dovetail shaped and sealing structure groove in the form of a ring that the lower end surface that it is characterized in that Sealing is processed with section, the tetrafluoroethylene seal ring is set in the dovetail shaped seal groove, the position of corresponding tetrafluoroethylene seal ring on the valve body, be respectively arranged with the corrosion resisting alloy seal joint of projection, the alloy seal joint is positioned at the outside of coniform positioning boss.
3, evaporation of chlorine-alkali special valve according to claim 2 is characterized in that the radially section of seal joint end is slick and sly arc-shaped structure.
4, evaporation of chlorine-alkali special valve according to claim 1 is characterized in that coniform positioning boss and Sealing are integral structure.
5, evaporation of chlorine-alkali special valve according to claim 1 is characterized in that coniform positioning boss and Sealing are split-type structural, and coniform positioning boss is inlaid on the Sealing.
6, evaporation of chlorine-alkali special valve according to claim 1, it is characterized in that valve gap is provided with umbrella sealing bayonet socket towards the valve pocket side, the umbrella back seal circle that matches is set on the valve rod, and umbrella back seal circle lower end surface is to the height of the distance between the end face of umbrella sealing bayonet socket greater than coniform positioning boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520128909 CN2854238Y (en) | 2005-11-04 | 2005-11-04 | Valve special for chloroalkali evaporation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520128909 CN2854238Y (en) | 2005-11-04 | 2005-11-04 | Valve special for chloroalkali evaporation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2854238Y true CN2854238Y (en) | 2007-01-03 |
Family
ID=37580870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520128909 Expired - Fee Related CN2854238Y (en) | 2005-11-04 | 2005-11-04 | Valve special for chloroalkali evaporation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2854238Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909808A (en) * | 2016-06-02 | 2016-08-31 | 苏州丹顿机电有限公司 | Valve |
| CN106763833A (en) * | 2017-01-22 | 2017-05-31 | 江苏金晟元特种阀门股份有限公司 | Special valve for special chlorine |
-
2005
- 2005-11-04 CN CN 200520128909 patent/CN2854238Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909808A (en) * | 2016-06-02 | 2016-08-31 | 苏州丹顿机电有限公司 | Valve |
| CN106763833A (en) * | 2017-01-22 | 2017-05-31 | 江苏金晟元特种阀门股份有限公司 | Special valve for special chlorine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |