CN101469780A - Pneumatic flange type high temperature resistant bellows gate valve - Google Patents
Pneumatic flange type high temperature resistant bellows gate valve Download PDFInfo
- Publication number
- CN101469780A CN101469780A CNA2007101733438A CN200710173343A CN101469780A CN 101469780 A CN101469780 A CN 101469780A CN A2007101733438 A CNA2007101733438 A CN A2007101733438A CN 200710173343 A CN200710173343 A CN 200710173343A CN 101469780 A CN101469780 A CN 101469780A
- Authority
- CN
- China
- Prior art keywords
- valve
- pneumatic
- valve rod
- mechanical connection
- high temperature
- 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.)
- Pending
Links
Images
Landscapes
- Details Of Valves (AREA)
Abstract
A pneumatic flange type high-temperature resistance corrugated pipe gate valve, relating to a pneumatic gate valve, comprises a flange valve body, wherein a pneumatic device is mechanically connected with a pneumatic device frame; the pneumatic device frame is mechanically connected with a valve cover through a bolt, a spring gasket and a nut; a pneumatic mandrel, the upper part of a valve rod and a pneumatic mandrel sleeve are mechanically connected through a transverse pin; a Co-base hard alloy sealing ring is build-up welded on the valve body, a Ti-plated austenitic stainless steel corrugated pipe device is movably connected between the lower part of the valve rod and the upper part of a gate plate, the lower part of the valve rod is mechanically connected with the gate plate, the Ti-plated austenitic stainless steel corrugated pipe device is driven to lift through a lifting rod of the valve rod. The device is simple in structure, is convenient to be installed, and the pneumatic device can be used for automatic controlled pipelines, the flange connection is convenient to be disassembled, and the corrugated pipe with dual-firmness and durability is convenient to be disassembled, the sealing design of the corrugated pipe with dual-firmness and durability guarantees zero leakage of the valve rod. Due to no fluid loss, energy loss is reduced, and the safety of factory equipment is improved.
Description
Technical field:
The present invention relates to a kind of pneumatic gate valve.
Background technique:
At present, known gate valve, the open-shut device with gate valve are the flashboards of plug type, and sealing surface is the plane or the conical surface, the center line moving linearly of flashboard longshore current body.The movement pattern of valve rod has elevating lever-type.Gate 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 flashboard.When medium enters valve by the flashboard 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 gate valve enters valve pocket to just changing by the flashboard 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 gate valve was opened, the Lift of flashboard 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 gate valve should be decided by the stroke of flashboard.
Summary of the invention:
In order to solve gate valve forced seal formula valve, when valve closing, must exert pressure to flashboard, with the technical problem that forced seal face does not leak, the invention provides a kind of pneumatic flange type high temperature resistant bellows gate valve.
Technological scheme: a kind of pneumatic flange type high temperature resistant bellows gate valve, comprise the flange-type valve body, it is characterized in that Pneumatic actuator and Pneumatic actuator frame mechanical connection, Pneumatic actuator frame and valve gap are by bolt, compression spring, the nut mechanical connection, pneumatic mandrel and valve rod top and pneumatic core sleeve are by horizontal bolt mechanical connection, 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 the valve rod and between above the flashboard, the active mechanical connection of square toes and flashboard under the valve rod, make the valve rod lifting bar drive the lifting of titanizing Austenitic Stainless Steel bellows arrangement, 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.
Technique effect: owing to adopt such scheme, simple in structure, easy for installation, pneumatic energy uses on the pipeline of automation control, flange connects convenient disassembly, dual robust bellows 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, 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. pneumatic core sleeves, 13 horizontal bolts, 14. Glands, 15. fillers, 16. times Packing seats, 17. Pneumatic actuator, 18. Pneumatic actuator framves, 19. bolts, 20. compression springs, 21. nut, 22. pneumatic mandrels, 23. flashboards.
In example shown in Figure 1: Pneumatic actuator 17 and Pneumatic actuator frame 18 mechanical connections, Pneumatic actuator frame 18 and valve gap 11 are by bolt 19, compression spring 20, nut 21 mechanical connections, pneumatic mandrel 22 and valve rod 4 tops and pneumatic core sleeve 12 are by horizontal bolt 13 mechanical connections, built-up welding Co base cemented carbide seal ring 2 on the valve body 1, titanizing Austenitic Stainless Steel bellows arrangement 3 active mechanical connections are below the valve rod 4 and between above the flashboard 23,4 times square toes of valve rod and flashboard 23 active mechanical connections, make the valve rod lifting bar drive the lifting of titanizing Austenitic Stainless Steel bellows arrangement, valve body 1 contacts the convex-concave place and is embedded with bolts 6 compression springs 7 nuts 8 mechanical connections by high temperature resistant pad 5 with valve gap 11, put down in the stuffing box on the valve gap 11 Packing seat 16 filler 15 by the jack screw 9 on the Gland 14 usefulness valve gaps 11 by very heavy nut 10 mechanical connections.Pneumatic energy uses on the pipeline of automation control, and flange connects convenient disassembly, dual robust bellows convenient disassembly, and product structure is reasonable, sealing is reliable, and dual robust sylphon seal design guarantees the zero leakage of valve rod.
Claims (3)
1. a pneumatic flange type high temperature resistant bellows gate valve comprises the flange-type valve body, it is characterized in that Pneumatic actuator and Pneumatic actuator frame mechanical connection, and Pneumatic actuator frame and valve gap are by bolt, compression spring, nut mechanical connection.
2. according to claims 1 described a kind of pneumatic flange type high temperature resistant bellows gate valve, it is characterized in that pneumatic mandrel and valve rod top and pneumatic core sleeve are by horizontal bolt mechanical connection, 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 the valve rod and between above the flashboard, the active mechanical connection of square toes and flashboard under the valve rod makes the valve rod lifting bar drive the lifting of titanizing Austenitic Stainless Steel bellows arrangement.
3. according to claims 1 described a kind of pneumatic flange type high temperature resistant bellows gate valve, it is characterized in that 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101733438A CN101469780A (en) | 2007-12-27 | 2007-12-27 | Pneumatic flange type high temperature resistant bellows gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101733438A CN101469780A (en) | 2007-12-27 | 2007-12-27 | Pneumatic flange type high temperature resistant bellows gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101469780A true CN101469780A (en) | 2009-07-01 |
Family
ID=40827508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101733438A Pending CN101469780A (en) | 2007-12-27 | 2007-12-27 | Pneumatic flange type high temperature resistant bellows gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101469780A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777616A (en) * | 2012-08-10 | 2012-11-14 | 吴忠仪表有限责任公司 | Novel gate valve |
| CN105417493A (en) * | 2015-11-11 | 2016-03-23 | 中国科学院长春光学精密机械与物理研究所 | Pneumatic micro-displacement corrugated-pipe driver |
-
2007
- 2007-12-27 CN CNA2007101733438A patent/CN101469780A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777616A (en) * | 2012-08-10 | 2012-11-14 | 吴忠仪表有限责任公司 | Novel gate valve |
| CN105417493A (en) * | 2015-11-11 | 2016-03-23 | 中国科学院长春光学精密机械与物理研究所 | Pneumatic micro-displacement corrugated-pipe driver |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101469778A (en) | Flange type high temperature resistant bellows gate valve | |
| CN101469780A (en) | Pneumatic flange type high temperature resistant bellows gate valve | |
| CN101608708A (en) | A kind of pneumatic gate valve for welding type high-temperature resistant bellows | |
| CN201526694U (en) | Hydraulic transmission welding type high-temperature resistant corrugated pipe gate valve | |
| CN101608709A (en) | A kind of gate valve for welding connected type high-temperature resistant bellows | |
| CN201526692U (en) | Pneumatic welded-type high temperature resistant bellows gate valve | |
| CN101469776A (en) | Hydraulically driven high temperature resistant bellows stop valve | |
| CN101598236A (en) | A kind of pneumatic interior thread connection type high-temperature-resistant corrugated pipe stop valve | |
| CN201526680U (en) | Pneumatic high temperature resistant bellows stop valve | |
| CN101469781A (en) | Hydraulically driven high temperature resistant bellows gate valve | |
| CN201526681U (en) | Pneumatic female-connection high temperature resistant bellows stop valve | |
| CN102454795A (en) | Hydraulic transmission interior-thread-connection-type high-temperature-resistant corrugated pipe stop valve | |
| CN101608717A (en) | A kind of hydraulicdriven clamp connection type high-temperature-resistant corrugated pipe stop valve | |
| CN101592256A (en) | A kind of pneumatic clamp connection type high-temperature-resistant corrugated pipe stop valve | |
| CN101398089A (en) | Flange type high temperature resistant bellows stop valve | |
| CN101598238A (en) | A kind of motor-driven high-temperature resisting bellow cut-off valve | |
| CN101608710A (en) | A kind of hydraulicdriven gate valve for welding type high-temperature resistant bellows | |
| CN101749482A (en) | Motor-driven bellows inclined type welded valve-body stop valve | |
| CN101608707A (en) | A kind of hydraulicdriven gate valve for inner screw type and high-temperature resistant bellows | |
| CN201526679U (en) | Pneumatic clamp-connection high temperature resistant bellows stop valve | |
| CN102454821A (en) | External-thread type pneumatic high-temperature-resistant corrugated sluice valve | |
| CN101598240A (en) | A kind of hydraulicdriven globe valve for welding connected type high-temperature resistant bellows | |
| CN101608711A (en) | A kind of gate valve for external thread connected type high-temperature resistant bellows | |
| CN101469775A (en) | Gas driven flange type high temperature resistant bellows stop valve | |
| CN101592260A (en) | A kind of pneumatic globe valve for welding connected type high-temperature resistant bellows |
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: 20090701 |