CN201982792U - Dual-seal corrugated pipe chlorine valve - Google Patents
Dual-seal corrugated pipe chlorine valve Download PDFInfo
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- CN201982792U CN201982792U CN2010206675050U CN201020667505U CN201982792U CN 201982792 U CN201982792 U CN 201982792U CN 2010206675050 U CN2010206675050 U CN 2010206675050U CN 201020667505 U CN201020667505 U CN 201020667505U CN 201982792 U CN201982792 U CN 201982792U
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Abstract
The utility model discloses a dual-seal corrugated pipe chlorine valve which aims at the shortcomings in the prior art. The dual-seal corrugated pipe chlorine valve comprises a valve body, a valve seat, a valve clack, a valve cover, a valve rod and a hand wheel. A taper hole is arranged at the bottom of the valve cover. A corrugated pipe component is arranged in the taper hole, and consists of a corrugated pipe sleeved at the periphery of the valve rod, and a taper hole cap used for separating the valve body and the valve cover. The lower end of the corrugated pipe is fixedly connected with the valve rod. The taper hole cap is fixedly welded on the periphery of the upper end of the corrugated pipe, and is connected with the valve rod together. The end surface of the valve clack has a dual-seal structure. The dual-seal corrugated pipe chlorine valve is further improved in a way that the taper of the taper hole at the bottom of the valve cover is 30 to 60 degrees; the internal diameter of the corrugated pipe sleeved on the periphery of the valve rod is greater than the diameter of the valve rod by 0.6 to 1.0mm; a cone with the taper of 5 to 10 degrees is machined on the end part of the valve clack; the dual-seal structure machined on the surface of the end surface of the valve clack comprises tapered face seal and plane seal; a tapered surface has an included angle of 60 to 80 degrees; and a plane has an included angle of 5 to 15 degrees. The dual-seal corrugated pipe chlorine valve has the advantages of higher corrosion resistance, and ensuring safety and avoiding leakage for a long time by multiple sealing.
Description
Technical field
The utility model relates to a kind of valve, and particularly a kind of chlorine conveyance conduit special valve belongs to chemical industry dedicated medium conveyance conduit valve field.
Background technique
In the past, the chlorine valve of chemical industry for making chlorine and alkali industry was generally common valve.Common valve is under deep-etching, poisonous and hazardous process conditions, and often poor sealing performance easily leaks, and housing is easily bored a hole, and working life is short, can not satisfy the specific (special) requirements of permanently effective conveying poisonous medium.
In order to adapt to the specific (special) requirements that the chemical industry for making chlorine and alkali industry is carried about poisonous, easy leaking medium, the applicant has proposed utility application and obtain the authorization (patent No. is CN200820214474.6) of " special leakage-free valve for dry chlorine " by name on December 12nd, 2008, a kind of special leakage-free valve for dry chlorine is disclosed, comprise valve body, valve seat, flap, valve gap, valve rod, the flap end is provided with double sealing structure.Sealing configuration is made of jointly awl, plane, and conical surface angle is the 60-80 degree, and the plane included angle is the 5-15 degree.It further improves, and is processed with horse shoe shaped groove and swallow tail shaped slot on the valve seat, fills fluoroplastic in the groove and constitutes one with metallic matrix; Scribble the anti-corrosive grease plastic envelope in being equipped with on the nut; Valve gap and valve body tenon-slot type are tightly connected; Valve body is the corrosion resistant alloy steel.This technological scheme is through extensively on probation, and its advantage is that sealability is better, nothing is leaked, and is safer reliable.But after long-term the use, valve rod is often owing to the unlatching of valve, close long upper and lower action, and valve rod and filler Long contact time and produce wearing and tearing still exist the danger of leakage.
Summary of the invention
To be solved in the utility model is the deficiencies in the prior art, and a kind of novel bellows special valve is provided, and this valve can stand strong corrosion, can guarantee the leakage of long-time safety nothing.
For achieving the above object, the utility model is achieved through the following technical solutions: a kind of double-sealing bellows chlorine valve, comprise valve body, valve seat, flap, valve gap, valve rod, handwheel, described valve gap bottom has the taper hole of 30～60 degree, be placed with in the described taper hole by the bellows that is sleeved on the valve rod periphery and being used to and separate the bellows assembly parts that the taper hole block of valve body, valve gap is formed, fixedly connected with valve rod in described bellows lower end, periphery, described bellows upper end is fixed with the taper hole block and fuses with valve rod, and described flap end face is provided with double sealing structure.
As further improvement of the utility model, the tapering of described taper hole block is identical with the taper hole tapering or close, and the described inside diameter of bel of valve rod periphery that is sleeved on is greater than stem diameter 0.6～1.0mm; Described double sealing structure comprises conical surface seal and plane sealing, and described conical surface angle is 60～80 degree, and described plane included angle is 5～15 degree; The described flap end that is provided with double sealing structure is 5～10 degree cones; Described taper hole block lower edge circumferential plane and valve body, valve gap are combined closely, and are provided with polytetrafluoroethylene sealing gasket therebetween.
Further improve as of the present utility model, described handwheel end is provided with sealing nut, and described valve rod is provided with the aperture pointer, described valve gap end is provided with the oiling lubricating cup; Described valve gap middle part is provided with multi-stage sealed filler chamber; Be processed with horse shoe shaped groove and swallow tail shaped slot on the described valve seat, filled polytetrafluoroethylene resin and metallic matrix constitute one in the groove; Described valve gap and valve body tenon-slot type are tightly connected, and described valve body is the corrosion resistant alloy steel.
Working principle of the present utility model: rotate counterclockwise handwheel and drive the rising of valve rod straight line, make the bellows compression, simultaneously, the flap that making floats is connected the valve rod end leaves the sealing surface of seat of body cavity, makes valve open.Clockwise rotate handwheel and drive the decline of valve rod straight line, bellows is stretched, simultaneously, flap and valve seat that making floats is connected the valve rod end coincide, and constitute to seal to make valve closing.The barrier that bellows contacts with valve gap as spacer medium.
Adopt technique scheme, make to the utlity model has following advantage:
1, multi-sealed more reliable.The utility model has increased the bellows assembly parts than common valve, the bellows lower end is welded on the valve rod, to prevent the poisonous medium etch valve rod of deep-etchings such as chlorine, its upper end places between valve body and the valve gap and constitutes static seal, it is peripheral that the taper hole block that will be used to separate valve body and valve gap simultaneously is fixedly welded on the bellows upper end, can also stop up the leakage point that may exist between bellows and the valve rod, further improve the sealing anti-leak performance of valve.Taper hole block lower edge circumferential plane and valve body, valve gap are combined closely, and are provided with polytetrafluoroethylene sealing gasket therebetween, can further guarantee the sealing effect of valve.Simultaneously, in the flap end double sealing structure of being made up of awl, plane being set, is 60～80 degree conical surface seals when new valve uses, and uses a period of time displacement to constitute the awl plane sealing, reaches the effect of double seal dual fail-safe non-internal leakage.
2, longer service life.The flap end is processed with the cones of 5 15 degree, and medium has solved the difficult problem that the flat end medium washes away valve seat along cone surface shunting when valve open, improves valve working life more than ten times.Bellows endoporus and valve rod matching gap are 0.6～1.0mm, guarantee the stability of bellows.With the tapering of valve gap bottom taper hole is 60 degree, and makes the tapering of taper hole block identical with the taper hole tapering or close, can guarantee the safe effect of taper hole block under artesian condition.Be provided with sealing nut in the handwheel end, described valve rod is provided with the aperture pointer, described valve gap end is provided with the oiling lubricating cup, can further make the valve opening closure more smooth and easy reliable.Valve body material adopts the corrosion resistant alloy steel to make according to chemical industry for making chlorine and alkali transportation specific (special) requirements, solves easily the bore a hole difficult problem of chlorine leakage of common valve housing.
3, Security is better.At the valve gap middle part multi-stage sealed filler chamber is set, be equipped with the V-arrangement filler combination multilayer of compression molding in filler chamber, top adopts Gland to compress formation filler chamber sealing pair, forms on second road to seal, can further prevent dielectric leakage, improve the valve Security.Be processed with horse shoe shaped groove and swallow tail shaped slot on the valve seat, in groove, be pressed into polyflon and mold pressing formation integral body behind sintering, making the organic set of resin and metallic matrix is one, reach good seal performance, indeformable, the corrosion resistant effect that do not come off has solved common valve valve seat resin and has come off because of low temperature shrinks, can't throttle down, leak the difficult problem that chemical accident takes place in causing.Valve gap and valve body adopt guiding to connect and compose not have the tongue-and-groove of leakage sealing mechanism, and no matter can both reach sealing under the bigger situation of pressure surge or difference variation does not have the effect that leaks outside.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described in further detail:
Fig. 1: the utility model structural representation.
Among the figure: 1. valve body, 2. valve seat, 3. flap, 4. valve gap, 5. bellows component, 6. pad, 7. Gland, 8. valve rod, 9. filler chamber, 10. lubricating cup, 11. handwheels, 12. Stem Muts, 13. sealing nuts, 14. aperture pointers.
Embodiment
Double-sealing bellows chlorine valve as shown in Figure 1 is made up of valve body (1), valve seat (2), flap (3), valve gap (4), valve rod (8), handwheel (11) etc.Valve gap (4) bottom has 30～60 degree taper holes, be placed with the bellows assembly parts of forming by bellows and taper hole block (5) in the taper hole, wherein inside diameter of bel is greater than stem diameter 0.6～1.0mm, by being sleeved on valve rod (8) periphery and bellows lower end and valve rod (8) being welded together, the bellows upper end is peripheral fixedly to be welded with the tapering taper hole block close with the valve gap taper hole, thereby valve body (1), valve gap (4) are separated.Taper hole block lower edge circumferential plane is closely pressed together on valve body (1), valve gap (4), is provided with polytetrafluoroethylene sealing gasket (6) therebetween.Flap (3) end is 5～10 degree cones, also is processed with the awl plane double sealing structure that is formed jointly by the conical surface and plane on its end face, and wherein conical surface angle is 60～80 degree, and described plane included angle is 5～15 degree.Be processed with the groove of horseshoe-shaped groove and swallow-tail form on the valve seat (2), in groove, be pressed into polyflon and behind sintering mold pressing constitute wholely, making the organic set of resin and metallic matrix is one.Valve gap (4) middle part is provided with multi-stage sealed filler chamber (9), and described valve gap (4) is tightly connected with valve body (1) tenon-slot type, and described valve body (1) is the corrosion resistant alloy steel.Handwheel (11) end is provided with sealing nut (13), and described valve rod is provided with aperture pointer (14), described valve gap end is provided with oiling lubricating cup (10).
Claims (8)
1. double-sealing bellows chlorine valve, comprise valve body, valve seat, flap, valve gap, valve rod, handwheel, it is characterized in that described valve gap bottom has the taper hole of 30～60 degree, be placed with in the described taper hole by the bellows that is sleeved on the valve rod periphery and being used to and separate the bellows assembly parts that the taper hole block of valve body, valve gap is formed, fixedly connected with valve rod in described bellows lower end, periphery, described bellows upper end is fixed with the taper hole block and fuses with valve rod, and described flap end face is provided with double sealing structure.
2. double-sealing bellows chlorine valve according to claim 1 is characterized in that the tapering of described taper hole block is identical with the taper hole tapering or close, and the described inside diameter of bel of valve rod periphery that is sleeved on is greater than stem diameter 0.6～1.0mm.
3. double-sealing bellows chlorine valve according to claim 2 is characterized in that described double sealing structure comprises conical surface seal and plane sealing, and described conical surface angle is 60～80 degree, and described plane included angle is 5～15 degree.
4. double-sealing bellows chlorine valve according to claim 3 is characterized in that the described flap end that is provided with double sealing structure is 5～10 degree cones.
5. double-sealing bellows chlorine valve according to claim 4 is characterized in that being provided with polytetrafluoroethylene sealing gasket therebetween.
6. according to the described double-sealing bellows of one of claim 1～5 chlorine valve, it is characterized in that described handwheel end is provided with sealing nut, described valve rod is provided with the aperture pointer, described valve gap end is provided with the oiling lubricating cup.
7. according to the described double-sealing bellows of one of claim 1～5 chlorine valve, it is characterized in that described valve gap middle part is provided with multi-stage sealed filler chamber, described valve gap and valve body tenon-slot type are tightly connected, and described valve body is the corrosion resistant alloy steel.
8. according to the described double-sealing bellows of one of claim 1～5 chlorine valve, it is characterized in that being processed with on the described valve seat horse shoe shaped groove and swallow tail shaped slot, filled polytetrafluoroethylene resin and metallic matrix constitute one in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206675050U CN201982792U (en) | 2010-12-20 | 2010-12-20 | Dual-seal corrugated pipe chlorine valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206675050U CN201982792U (en) | 2010-12-20 | 2010-12-20 | Dual-seal corrugated pipe chlorine valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201982792U true CN201982792U (en) | 2011-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206675050U Expired - Fee Related CN201982792U (en) | 2010-12-20 | 2010-12-20 | Dual-seal corrugated pipe chlorine valve |
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|---|---|
| CN (1) | CN201982792U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807449A (en) * | 2014-03-03 | 2014-05-21 | 德阳正光机电设备有限公司 | Throttle valve for oil gas |
| CN104455482A (en) * | 2014-11-26 | 2015-03-25 | 浙江纽顿流体控制有限公司 | Valve special for heat conductive oil |
| CN104696585A (en) * | 2015-03-30 | 2015-06-10 | 南通市天源阀门制造有限公司 | Multi-protection corrugated pipe stop valve for chlorine |
| CN105042095A (en) * | 2014-04-08 | 2015-11-11 | 艾默生过程管理调节技术公司 | Flow path velocity modifier for a control valve |
| CN105526421A (en) * | 2016-03-01 | 2016-04-27 | 马鞍山市润启新材料科技有限公司 | Valve rod |
| CN106321956A (en) * | 2016-10-28 | 2017-01-11 | 超达阀门集团丽水有限公司 | Stop valve sealed by corrugated pipe |
| CN108167462A (en) * | 2018-02-08 | 2018-06-15 | 江苏金晟元特种阀门股份有限公司 | Corrugated pipe chlorine dedicated regulation valve |
| CN108426038A (en) * | 2018-05-09 | 2018-08-21 | 盐城市大昌石化设备有限公司 | A kind of high-pressure resistant corrugated pipe shut-off valve |
-
2010
- 2010-12-20 CN CN2010206675050U patent/CN201982792U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807449A (en) * | 2014-03-03 | 2014-05-21 | 德阳正光机电设备有限公司 | Throttle valve for oil gas |
| CN105042095A (en) * | 2014-04-08 | 2015-11-11 | 艾默生过程管理调节技术公司 | Flow path velocity modifier for a control valve |
| CN105042095B (en) * | 2014-04-08 | 2020-09-08 | 艾默生过程管理调节技术公司 | Flow path velocity regulator for control valve |
| CN104455482A (en) * | 2014-11-26 | 2015-03-25 | 浙江纽顿流体控制有限公司 | Valve special for heat conductive oil |
| CN104696585A (en) * | 2015-03-30 | 2015-06-10 | 南通市天源阀门制造有限公司 | Multi-protection corrugated pipe stop valve for chlorine |
| CN105526421A (en) * | 2016-03-01 | 2016-04-27 | 马鞍山市润启新材料科技有限公司 | Valve rod |
| CN106321956A (en) * | 2016-10-28 | 2017-01-11 | 超达阀门集团丽水有限公司 | Stop valve sealed by corrugated pipe |
| CN108167462A (en) * | 2018-02-08 | 2018-06-15 | 江苏金晟元特种阀门股份有限公司 | Corrugated pipe chlorine dedicated regulation valve |
| CN108426038A (en) * | 2018-05-09 | 2018-08-21 | 盐城市大昌石化设备有限公司 | A kind of high-pressure resistant corrugated pipe shut-off valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110921 Termination date: 20131220 |