CN101586696A - Buckling connection type high-corrosion resisting bellow cut-off valve - Google Patents
Buckling connection type high-corrosion resisting bellow cut-off valve Download PDFInfo
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- CN101586696A CN101586696A CNA2008100378467A CN200810037846A CN101586696A CN 101586696 A CN101586696 A CN 101586696A CN A2008100378467 A CNA2008100378467 A CN A2008100378467A CN 200810037846 A CN200810037846 A CN 200810037846A CN 101586696 A CN101586696 A CN 101586696A
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- valve
- bellow
- mechanical connection
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- stainless steel
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Abstract
The invention relates to a buckling connection type high-corrosion resisting bellow cut-off valve which belongs to cut-off valves. The buckling connection type high-corrosion resisting bellow cut-off valve comprises a buckling connecting type valve body on which a Co-based hard alloy seal ring is welded, a titanized austenitic stainless steel bellow device is movably connected to the lower part of a valve rod, a handwheel is rotated to enable a lifting rod of the valve rod to drive the titanized austenitic stainless steel dual bellow device to ascend and descend by a valve rod nut, the dual bellow which is firm and durable is assembled conveniently, the buckling connection and disassembly are convenient, and the product has reasonable structure and reliable sealing; and the Co-based hard alloy and the bellow titanized austenitic stainless steel which are welded on a sealing face have good properties of wearing resistance, corrosion resistance, abrasion resistance and long service life. The invention is suitable for cutting or communicating mediums on pipelines of various working conditions, such as petroleum and chemical industries, and the like.
Description
Technical field:
The present invention relates to a kind of 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.Common material can not high-corrosion resistant, has influenced working life.
Summary of the invention:
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, common material can not high-corrosion resistant, has influenced the technical problem in working life.The invention provides a kind of buckling connection type high-corrosion resisting bellow cut-off valve.
Technological scheme: a kind of buckling connection type high-corrosion resisting bellow cut-off valve, comprise the buckle-connected 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 buckle-connected 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 the Stem Mut, Stem Mut fits in the handwheel by the key mechanical connection, handwheel one changes through Stem Mut makes the valve rod lifting bar drive the dual bellows arrangement lifting of titanizing Austenitic Stainless Steel, valve gap top endoporus is joined the Stem Mut mechanical connection, and outer tennis partner's wheel is embedded by Stem Mut tightening nut mechanical connection by key on the Stem Mut.
Technique effect: owing to adopt such scheme, simple in structure, easy for installation, dual robust bellows convenient disassembly, buckle connects convenient disassembly, and 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, cut off or connect the pipeline medium.
Description of drawings:
Fig. 1 is the schematic representation of the embodiment of the invention.
Embodiment:
The present invention is further described below in conjunction with drawings and Examples.
In the drawings: 1. buckle-connected 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 Stem Muts, 13. handwheel, 14 Stem Mut tightening nuts, 15 keys, 16. Gland, 17. fillers, 18. times Packing seats.
In example shown in Figure 1: built-up welding Co base cemented carbide seal ring 2 on the buckle-connected 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, bellows titanizing Austenitic Stainless Steel is wear-resisting, corrosion resistant, the friction resistant performance is good, long service life, buckle-connected 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 the Stem Mut 12, Stem Mut 12 fits in the handwheel 13 consolidates it by key 15, handwheel 13 1 changes through Stem Mut 12 makes valve rod 4 lifting bars drive dual bellows arrangement 2 liftings of titanizing Austenitic Stainless Steel, forced seal face does not leak, valve gap 11 top endoporus are joined Stem Mut 12, on the Stem Mut 12 outer tennis partner take turns 13 by key 15 embed by Stem Mut tightening nut 14 solid it, on valve gap 11, rotate.
Claims (2)
1. buckling connection type high-corrosion resisting bellow cut-off valve, comprise buckle-connected type buckle-connected 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 buckle-connected 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.
2. a kind of buckling connection type high-corrosion resisting bellow cut-off valve according to claim 1, it is characterized in that the valve rod top fits over mechanical connection in the Stem Mut, Stem Mut fits in the handwheel by the key mechanical connection, handwheel one changes through Stem Mut makes the valve rod lifting bar drive the dual bellows arrangement lifting of titanizing Austenitic Stainless Steel, valve gap top endoporus is joined the Stem Mut mechanical connection, and outer tennis partner's wheel is embedded by Stem Mut tightening nut mechanical connection by key on the Stem Mut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100378467A CN101586696A (en) | 2008-05-22 | 2008-05-22 | Buckling connection type high-corrosion resisting bellow cut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100378467A CN101586696A (en) | 2008-05-22 | 2008-05-22 | Buckling connection type high-corrosion resisting bellow cut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101586696A true CN101586696A (en) | 2009-11-25 |
Family
ID=41371068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100378467A Pending CN101586696A (en) | 2008-05-22 | 2008-05-22 | Buckling connection type high-corrosion resisting bellow cut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101586696A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879642A (en) * | 2021-01-13 | 2021-06-01 | 李亮 | Valve component structure capable of being used in seamless butt joint |
-
2008
- 2008-05-22 CN CNA2008100378467A patent/CN101586696A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879642A (en) * | 2021-01-13 | 2021-06-01 | 李亮 | Valve component structure capable of being used in seamless butt joint |
| CN112879642B (en) * | 2021-01-13 | 2023-05-09 | 马鞍山市恒久特材有限公司 | Valve assembly structure capable of being used in seamless butt joint |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091125 |