CN201526679U - Pneumatic clamp-connection high temperature resistant bellows stop valve - Google Patents
Pneumatic clamp-connection high temperature resistant bellows stop valve Download PDFInfo
- Publication number
- CN201526679U CN201526679U CN2009202101266U CN200920210126U CN201526679U CN 201526679 U CN201526679 U CN 201526679U CN 2009202101266 U CN2009202101266 U CN 2009202101266U CN 200920210126 U CN200920210126 U CN 200920210126U CN 201526679 U CN201526679 U CN 201526679U
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- pneumatic
- valve
- clamp
- stop valve
- core sleeve
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Abstract
The utility model discloses a pneumatic clamp-connection high temperature resistant bellows stop valve, and relates to a pneumatic stop valve which comprises a clamp-connection valve body, wherein the valve body is bead-welded with a Co based hard alloy seal ring; a titanizing austenitic stainless steel dual bellows device is movably and mechanically connected at the lower part of a valve rod; an external pipe and the seal ring screw up a clamp component by a clamp fastening bolt through a spring washer to lead the pipelines to be connected in a fast and sealing way; one pivot of a pneumatic head core shaft leads a valve rod lifting rod to drive the titanizing austenitic stainless steel dual bellows device to go up and down through a pneumatic head core shaft sleeve; the dual sturdy and durable bellows has convenient dismounting, the clamp-connection dismounting is convenient, the product structure is reasonable and the seal is reliable. The seal surface overlaying Co based hard alloy and bellows titanizing austenitic stainless steel have good wear-resisting, corrosion resistant and anti-friction performances and long service life, and the stop valve is applicable to pipelines of all kinds of conditions for cutting off or connecting pipeline media.
Description
Technical field:
The utility model relates to a kind of pneumatic stop valve.
Background technique:
At present, known stop valve, the open-shut device with stop valve are the flaps of plug type, and sealing surface is the plane or the conical surface, the center line moving linearly of flap longshore current body.The movement pattern of valve rod has elevating lever-type.Stop valve only is applicable to standard-sized sheet and complete shut-down, does not allow to do to regulate and throttling.Belong to forced seal formula valve,, do not leak with forced seal face so when valve closing, must exert pressure to flap.When medium enters valve by the flap below, the required resistance that overcomes of steering force is the frictional force of valve rod and filler with by the thrust that pressure produced of medium, the power that the force rate of closing valve is opened valve is big, so it is big that the diameter of valve rod is wanted, otherwise the fault of valve rod bending can take place.In recent years, after occurring from self-packing valve, the MEDIA FLOW of stop valve enters valve pocket to just changing by the flap top, and at this moment, under the pressure medium effect, the power of closing valve is little, and it is big to open the power of valve, and the diameter of valve rod can correspondingly reduce.Simultaneously, under the medium effect, the valve of this pattern is also tighter.When stop valve was opened, it is maximum that the Lift of flap, flow have reached, and the expression valve has reached fully open position.So the fully open position of stop valve should be decided by the stroke of flap.
The model utility content:
In order to solve stop valve forced seal formula valve, when valve closing, must exert pressure to flap, with the technical problem that forced seal face does not leak, the utility model provides a kind of pneumatic clamp connection type high-temperature-resistant corrugated pipe stop valve.
Technological scheme: a kind of pneumatic clamp connection type high-temperature-resistant corrugated pipe stop valve, comprise the clamp connection type valve body, it is characterized in that built-up welding Co base cemented carbide seal ring on the valve body, the active mechanical connection of the dual bellows arrangement of titanizing Austenitic Stainless Steel is below valve rod, the active mechanical connection of square toes and flap under the valve rod, the clamp connection type valve body contacts the convex-concave place and is embedded with bolt spring pad nut mechanical connection by high temperature resistant pad with valve gap, put down in the stuffing box on the valve gap Packing seat filler by Gland with the jack screw on the valve gap by very heavy nut mechanical connection, the valve rod top fits over mechanical connection in pneumatic the core sleeve, pneumatic core sleeve fits in pneumatic the mandrel by pneumatic head unit mechanical connection, pneumatic mandrel one changes through pneumatic core sleeve makes the valve rod lifting bar drive the dual bellows arrangement lifting of titanizing Austenitic Stainless Steel, the moving core sleeve's mechanical connection of valve gap top endoporus distribution, the moving mandrel of distribution is embedded by pneumatic core sleeve's lateral pin mechanical connection by pneumatic head unit in pneumatic the core sleeve, and external tube is tightened hoop component by the clip clamping bolt by compression spring with seal ring is connected the pipeline quick-sealing.
Technique effect: owing to adopt such scheme, simple in structure, easy for installation, dual robust bellows convenient disassembly, the clip connected convenient disassembly, product structure is reasonable, sealing is reliable, dual robust sylphon seal design guarantees the zero leakage of valve rod.Do not have fluid loss, reduce energy loss, improve safety of factory equipment.Sealing surface weld deposit Co base cemented carbide, wear-resisting, corrosion resistant, good, the long service life of friction resistant performance, bellows titanizing Austenitic Stainless Steel is wear-resisting, corrosion resistant, good, the long service life of friction resistant performance, modified and the surfaces nitrided processing of valve rod has good anti-corruption and friction resistant performance; The indication of valve rod lifting position, more directly perceived, be applicable on the pipeline of various operating modes such as oil, chemical industry, pharmacy, chemical fertilizer, industry, cut off or connect the pipeline medium.
Description of drawings:
Fig. 1 is the utility model embodiment's a schematic representation.
Embodiment:
Below in conjunction with drawings and Examples the utility model is further specified.
In the drawings: 1. clamp connection type valve body, 2. built-up welding Co base cemented carbide seal ring, the 3. dual bellows arrangement of titanizing Austenitic Stainless Steel, 4. valve rod, 5. high temperature resistant pad, 6. bolt, 7. compression spring, 8. nut, 9. jack screw, 10. very heavy nut, 11 valve gaps, 12 pneumatic core sleeves, 13. pneumatic mandrels, 14 pneumatic core sleeve's lateral pins, 15 pneumatic head units, 16. Glands, 17. fillers, 18. following Packing seat, 19. the clip clamping bolt, 20. compression springs, 21. hoop components, 22. external tube, 23. seal rings.
In example shown in Figure 1: built-up welding Co base cemented carbide seal ring 2 on the clamp connection type valve body 1, sealing surface weld deposit Co base cemented carbide, wear-resisting, corrosion resistant, the friction resistant performance is good, long service life, the dual bellows arrangement 3 active mechanical connections of titanizing Austenitic Stainless Steel are below valve rod 4, the active mechanical connection of square toes and flap under the valve rod, bellows titanizing Austenitic Stainless Steel is wear-resisting, corrosion resistant, the friction resistant performance is good, long service life, clamp connection type valve body 1 contacts the convex-concave place and embeds with bolt 6 compression springs 7 nuts 8 fastening by high temperature resistant pad 5 with valve gap 11, putting down Packing seat 18 in the stuffing box on the valve gap 11 is tightened up by the jack screw 9 on the Gland 16 usefulness valve gaps 11 filler 17 by very heavy nut 10 adjustment, valve rod 4 tops fit in pneumatic the core sleeve 12, pneumatic core sleeve 12 fits in pneumatic the mandrel 13 and consolidates it by pneumatic head unit 15, pneumatic mandrel 13 1 changes through pneumatic core sleeve 12 makes valve rod 4 lifting bars drive dual bellows arrangement 2 liftings of titanizing Austenitic Stainless Steel, forced seal face does not leak, a core sleeve 12 is moved in valve gap 11 top endoporus distributions, in in pneumatic the core sleeve 12 the moving mandrel 13 of distribution by pneumatic head unit 15 embed by pneumatic core sleeve's lateral pin 14 solid it, on valve gap 11, rotate.External tube 22 is tightened hoop component 21 by clip clamping bolt 19 by compression spring 20 with seal ring 23 is connected the pipeline quick-sealing.
Claims (3)
1. pneumatic clamp connection type high-temperature-resistant corrugated pipe stop valve, comprise clamp connection type clamp connection type valve body, it is characterized in that built-up welding Co base cemented carbide seal ring on the valve body, the active mechanical connection of the dual bellows arrangement of titanizing Austenitic Stainless Steel is below valve rod, and external tube is tightened hoop component by the clip clamping bolt by compression spring with seal ring is connected the pipeline quick-sealing.
2. a kind of pneumatic clamp connection type high-temperature-resistant corrugated pipe stop valve according to claim 1, it is characterized in that the clamp connection type valve body contacts the convex-concave place and embedded with bolt spring pad nut mechanical connection by high temperature resistant pad with valve gap, put down in the stuffing box on the valve gap Packing seat filler by Gland with the jack screw on the valve gap by very heavy nut mechanical connection.
3. a kind of pneumatic clamp connection type high-temperature-resistant corrugated pipe stop valve according to claim 1, it is characterized in that the valve rod top fits over mechanical connection in pneumatic the core sleeve, pneumatic core sleeve fits in pneumatic the mandrel by pneumatic head unit mechanical connection, pneumatic mandrel one changes through pneumatic core sleeve makes the valve rod lifting bar drive the dual bellows arrangement lifting of titanizing Austenitic Stainless Steel, the moving core sleeve's mechanical connection of valve gap top endoporus distribution, the moving mandrel of interior distribution is embedded by pneumatic core sleeve's lateral pin mechanical connection by pneumatic head unit in pneumatic the core sleeve.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009202101266U CN201526679U (en) | 2009-09-25 | 2009-09-25 | Pneumatic clamp-connection high temperature resistant bellows stop valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009202101266U CN201526679U (en) | 2009-09-25 | 2009-09-25 | Pneumatic clamp-connection high temperature resistant bellows stop valve |
Publications (1)
Publication Number | Publication Date |
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CN201526679U true CN201526679U (en) | 2010-07-14 |
Family
ID=42517965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN2009202101266U Expired - Fee Related CN201526679U (en) | 2009-09-25 | 2009-09-25 | Pneumatic clamp-connection high temperature resistant bellows stop valve |
Country Status (1)
Country | Link |
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CN (1) | CN201526679U (en) |
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2009
- 2009-09-25 CN CN2009202101266U patent/CN201526679U/en not_active Expired - Fee Related
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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: 20100714 Termination date: 20100925 |