CN101398089A - Flange type high temperature resistant bellows stop valve - Google Patents
Flange type high temperature resistant bellows stop valve Download PDFInfo
- Publication number
- CN101398089A CN101398089A CNA2007100467521A CN200710046752A CN101398089A CN 101398089 A CN101398089 A CN 101398089A CN A2007100467521 A CNA2007100467521 A CN A2007100467521A CN 200710046752 A CN200710046752 A CN 200710046752A CN 101398089 A CN101398089 A CN 101398089A
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- valve
- flange
- mechanical connection
- stem mut
- stainless steel
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- Lift Valve (AREA)
Abstract
The invention discloses a flange globe valve of a high-temperature-resistance corrugated tube, relating to a globe valve. The flange globe valve comprises a flange valve body, and is characterized in that the valve body is welded with Co-based cemented carbide sealing washer in a surfacing manner; a corrugated tube device coated with austenitic titanium stainless steel is detachably and mechanically connected to the lower part of a valve stem; and when a hand-wheel is turned, a lifting poker of the valve stem drives the corrugated tube device coated with austenitic titanium stainless steel to rise and fall through a valve stem nut. The flange connecting is convenient to detach, a double robust corrugated tube is also convenient to detach, a product is simple in structure and reliable in sealing, and zero leakage of the valve stem is guaranteed. The flange globe valve has no fluid loss, reduces energy loss and increases safety to the plant equipment. The sealing surface is welded with Co-based cemented carbide in a surfacing manner; the corrugated tube is coated with austenitic titanium stainless steel, thereby being wear-proof and corrosion-poof and having good anti-friction performance and long service life; and the flange globe valve is applicable to various engineering conditions in petroleum industry, chemistry industry, pharmacy industry, fertilizer industry, electricity industry and the like to cut off or connect the pipeline media, particularly to the engineering of a heat-conducting oil boiler pipeline.
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 (valve rod lifting, not lifting of handwheel), and lifting rotation rod-type (handwheel is with the valve rod rotation and lifting, and nut is located on the valve body) is also arranged.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, the Lift of flap was 25% of nominal diameter～30% o'clock, and it is maximum that flow has 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.
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, the invention provides a kind of flange type high temperature resistant bellows stop valve.
Technological scheme: a kind of flange type high temperature resistant bellows stop valve, comprise the flange-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 titanizing Austenitic Stainless Steel bellows arrangement is below valve rod, 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 lifting of titanizing Austenitic Stainless Steel bellows arrangement, 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, flange connects convenient disassembly, dual robust bellows convenient disassembly, and product structure is reasonable, sealing is reliable, dual robust sylphon seal design (bellows+filler) 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, power industry, cut off or connect the pipeline medium.On conduction oil snail boiler tube road engineering, use especially.
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. valve body, 2. built-up welding Co base cemented carbide seal ring, 3. titanizing Austenitic Stainless Steel bellows arrangement, 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 valve body 1, sealing surface weld deposit Co base cemented carbide, wear-resisting, corrosion resistant, the friction resistant performance is good, long service life, titanizing Austenitic Stainless Steel bellows arrangement 3 active mechanical connections are below valve rod 4, bellows titanizing Austenitic Stainless Steel is wear-resisting, corrosion resistant, the friction resistant performance is good, long service life, 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 2 liftings of titanizing Austenitic Stainless Steel bellows arrangement, 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 (1)
1. flange type high temperature resistant bellows stop valve, comprise the flange-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 titanizing Austenitic Stainless Steel bellows arrangement is below valve rod, 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 lifting of titanizing Austenitic Stainless Steel bellows arrangement, 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 |
|---|---|---|---|
| CNA2007100467521A CN101398089A (en) | 2007-09-30 | 2007-09-30 | Flange type high temperature resistant bellows stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100467521A CN101398089A (en) | 2007-09-30 | 2007-09-30 | Flange type high temperature resistant bellows stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101398089A true CN101398089A (en) | 2009-04-01 |
Family
ID=40516831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100467521A Pending CN101398089A (en) | 2007-09-30 | 2007-09-30 | Flange type high temperature resistant bellows stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101398089A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782152A (en) * | 2010-03-26 | 2010-07-21 | 温州市尔力特阀门有限公司 | Heat-resisting bellows diaphragm valve |
| CN112756855A (en) * | 2020-12-23 | 2021-05-07 | 烟台万华电子材料有限公司 | Method for welding and connecting two pipe fittings by adopting pipe fitting welding device |
-
2007
- 2007-09-30 CN CNA2007100467521A patent/CN101398089A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782152A (en) * | 2010-03-26 | 2010-07-21 | 温州市尔力特阀门有限公司 | Heat-resisting bellows diaphragm valve |
| CN112756855A (en) * | 2020-12-23 | 2021-05-07 | 烟台万华电子材料有限公司 | Method for welding and connecting two pipe fittings by adopting pipe fitting welding device |
| CN112756855B (en) * | 2020-12-23 | 2022-12-27 | 烟台万华电子材料有限公司 | Method for welding and connecting two pipe fittings by adopting pipe fitting welding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20090401 |