CN201007367Y - Regulation valve dedicated for chlorine gas - Google Patents
Regulation valve dedicated for chlorine gas Download PDFInfo
- Publication number
- CN201007367Y CN201007367Y CNU2007200333541U CN200720033354U CN201007367Y CN 201007367 Y CN201007367 Y CN 201007367Y CN U2007200333541 U CNU2007200333541 U CN U2007200333541U CN 200720033354 U CN200720033354 U CN 200720033354U CN 201007367 Y CN201007367 Y CN 201007367Y
- Authority
- CN
- China
- Prior art keywords
- valve
- mentioned
- flap
- alloy layer
- sealing
- 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 - Lifetime
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- Lift Valve (AREA)
Abstract
The utility model discloses a regulating valve which is dedicated to the chlorine, comprising a valve body, a valve body, a valve flap, a valve cover, a pressing cover, a valve pole, a hand wheel, a gasket which is arranged between the valve cover and the valve body, and a ring-shaped sealing ring which is arranged between the lower end of the valve cover and the valve pole, the different point is that a ring-shaped groove is arranged on the surface of the valve base, sealing parts are arranged in the ring-shaped groove, a rigid alloy layer is arranged on the surface of the valve flap, and the rigid alloy layer is engaged with the surface of the valve base. The regulating valve has the advantages of novel sealing structure, excellent sealing performance, safety and reliability, and long life span.
Description
Technical field
The utility model relates to a kind of valve, relates in particular to the regulating valve special for chlorine door of controlling and regulate media flow on a kind of chemical industry pipeline.
Background technique
At present, the valve that China's chemical industry is used for the control of deep-etching flowing medium such as chlorine mostly is common shutoff valve greatly, because sealed attachment form and structure are unreasonable, the Sealing damage that easily comes off is easily leaked, even security incident takes place, valve is short working life, change frequently, influence is produced, and causes economic loss.
Summary of the invention
The purpose of this utility model is to provide a kind of sealing configuration novelty, and good seal performance is safe and reliable, the regulating valve special for chlorine of long service life.
The technical scheme in the invention for solving the technical problem is: a kind of regulating valve special for chlorine, it comprises valve body, valve seat, flap, valve gap, gland, valve rod, handwheel, be equipped with pad between above-mentioned valve gap and the valve body, be equipped with O-ring seal between above-mentioned valve gap lower end and the valve rod, difference is, above-mentioned valve base surface is equipped with circular groove, above-mentioned circular groove is built-in with Sealing, above-mentioned flap surface is equipped with hard alloy layer, above-mentioned hard alloy layer and flap matrix are sintered to one, and above-mentioned hard alloy layer matches with the Sealing of valve base surface.
The circular groove of above-mentioned valve base surface is a dovetail groove, and its width of rebate is not more than the bottom land width.
Above-mentioned flap bottom is the convex body.
Above-mentioned pad, O-ring seal, Sealing are teflon.
The utility model compared with prior art has following advantage:
1, the valve base surface of this regulating valve special for chlorine is equipped with circular groove, and circular groove is built-in with Sealing, and Sealing is firm at the circular groove internal fixation, and difficult dislocation comes off, and good seal performance is safe and reliable.
2, the flap surface of this regulating valve special for chlorine is equipped with hard alloy layer, and hard alloy layer and flap matrix are sintered to one, and the flap scratch-resistant performance is good, long service life.
3, the pad of this regulating valve special for chlorine, O-ring seal, Sealing are teflon, and be corrosion-resistant, not yielding, good seal performance, long service life.
Description of drawings
Fig. 1 is the structural representation of the utility model regulating valve special for chlorine.
Embodiment
Below in conjunction with accompanying drawing the utility model regulating valve special for chlorine is further described.
As shown in Figure 1, a kind of regulating valve special for chlorine, it comprises valve body 1, valve seat 2, flap 3, valve gap 4, gland 5, valve rod 6, handwheel 7, be equipped with pad 41 between above-mentioned valve gap 4 and the valve body 1, be equipped with O-ring seal 42 between above-mentioned valve gap 4 lower ends and the valve rod 6, difference is, above-mentioned valve seat 2 surfaces are equipped with circular groove 21, above-mentioned circular groove 21 is built-in with Sealing 22, above-mentioned flap 3 surfaces are equipped with hard alloy layer 31, above-mentioned hard alloy layer 31 is sintered to one with flap 3 matrixes, and above-mentioned hard alloy layer 31 matches with the Sealing 22 on valve seat 2 surfaces; The circular groove 21 on above-mentioned valve seat 2 surfaces is a dovetail groove, and its width of rebate is not more than the bottom land width; Above-mentioned flap 3 bottoms are convex body 32; Above-mentioned pad 41, O-ring seal 42, Sealing 22 are teflon.
During use, handwheel 7 rotation drives valve rod 6, flap 3 upper and lower displacements, and when to top offset, flap 3 separates with valve seat 2, valve open, and when flap 3 during to bottom offset, flap 3 and valve seat 2 apical graftings, valve closing.
Claims (3)
1. regulating valve special for chlorine, it comprises valve body, valve seat, flap, valve gap, gland, valve rod, handwheel, be equipped with pad between above-mentioned valve gap and the valve body, be equipped with O-ring seal between above-mentioned valve gap lower end and the valve rod, it is characterized in that: above-mentioned valve base surface is equipped with circular groove, and above-mentioned circular groove is built-in with Sealing, and above-mentioned flap surface is equipped with hard alloy layer, above-mentioned hard alloy layer and flap matrix are sintered to one, and above-mentioned hard alloy layer matches with the Sealing of valve base surface.
2. regulating valve special for chlorine according to claim 1 is characterized in that: the circular groove of above-mentioned valve base surface is a dovetail groove, and its width of rebate is not more than the bottom land width.
3. regulating valve special for chlorine according to claim 1 is characterized in that: above-mentioned flap bottom is the convex body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200333541U CN201007367Y (en) | 2007-01-17 | 2007-01-17 | Regulation valve dedicated for chlorine gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200333541U CN201007367Y (en) | 2007-01-17 | 2007-01-17 | Regulation valve dedicated for chlorine gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201007367Y true CN201007367Y (en) | 2008-01-16 |
Family
ID=39003314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200333541U Expired - Lifetime CN201007367Y (en) | 2007-01-17 | 2007-01-17 | Regulation valve dedicated for chlorine gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201007367Y (en) |
-
2007
- 2007-01-17 CN CNU2007200333541U patent/CN201007367Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080116 |
|
| EXPY | Termination of patent right or utility model |