CN201526694U - Hydraulic transmission welding type high-temperature resistant corrugated pipe gate valve - Google Patents
Hydraulic transmission welding type high-temperature resistant corrugated pipe gate valve Download PDFInfo
- Publication number
- CN201526694U CN201526694U CN2009202101302U CN200920210130U CN201526694U CN 201526694 U CN201526694 U CN 201526694U CN 2009202101302 U CN2009202101302 U CN 2009202101302U CN 200920210130 U CN200920210130 U CN 200920210130U CN 201526694 U CN201526694 U CN 201526694U
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- hydraulic transmission
- valve
- temperature resistant
- valve rod
- welding type
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Abstract
A hydraulic transmission welding type high-temperature resistant corrugated pipe gate valve relates to a hydraulic transmission gate valve. The hydraulic transmission welding type high-temperature resistant corrugated pipe gate valve comprises a welding type valve body. A hydraulic transmission head device is mechanically connected with a frame of the hydraulic transmission device. The frame of the hydraulic transmission head device is mechanically connected with a valve cover through bolts, spring gaskets and nuts. A hydraulic transmission head spindle, an upper part of a valve rod and a hydraulic transmission head spindle sleeve are mechanically connected by transverse bolts. Surfacing welding of Co base hard alloy sealing ring is performed on the valve body. A titanium-coated austenitic stainless steel corrugated pipe device is movably and mechanically connected between the lower part of a valve rod and the upper part of a gate. A lower head of the valve rod is movably and mechanically connected with the gate so that a valve rod lifting rod drives the austenitic stainless steel corrugated pipe device to lift. The hydraulic transmission welding type high-temperature resistant corrugated pipe gate valve has the advantages of simple structure, convenient installation, capability of the hydraulic transmission head on an automatically controlled pipe, convenient welding connection and detachment and high hardness. The dual corrugated pipes with high hardness and high durability are convenient to detach and are designed to be sealed for ensuring zero leakage of the valve rod.
Description
Technical field:
The utility model relates to a kind of hydraulicdriven 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 utility model provides a kind of hydraulicdriven gate valve for welding type high-temperature resistant bellows.
Technological scheme: a kind of hydraulicdriven gate valve for welding type high-temperature resistant bellows, comprise the welding type valve body, it is characterized in that hydraulic transmission head unit and hydraulic transmission head unit frame mechanical connection, hydraulic transmission head unit frame and valve gap are by bolt, compression spring, the nut mechanical connection, a hydraulic transmission mandrel and valve rod top and a hydraulic transmission 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, the hydraulic transmission head can use on the pipeline of automation control, be welded to connect convenient disassembly, dual robust bellows 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, 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 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. welding type 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. a hydraulic transmissions core sleeve, 13 horizontal bolts, 14. Gland, 15. filler, 16. times Packing seats, 17. hydraulic transmission head units, 18. hydraulic transmission head unit frame, 19. bolt, 20. compression springs, 21. nuts, 22. a hydraulic transmission mandrel, 23. flashboards.
In example shown in Figure 1: hydraulic transmission head unit 17 and hydraulic transmission head unit frame 18 mechanical connections, hydraulic transmission head unit frame 18 and valve gap 11 are by bolt 19, compression spring 20, nut 21 mechanical connections, a hydraulic transmission mandrel 22 and valve rod 4 tops and a hydraulic transmission core sleeve 12 are by horizontal bolt 13 mechanical connections, built-up welding Co base cemented carbide seal ring 2 on the welding type 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.The hydraulic transmission head can use on the pipeline of automation control, is welded to connect 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 (2)
1. hydraulicdriven gate valve for welding type high-temperature resistant bellows, comprise the welding type valve body, it is characterized in that hydraulic transmission head unit and hydraulic transmission head unit frame mechanical connection, hydraulic transmission head unit frame and valve gap are by bolt, compression spring, nut mechanical connection, a hydraulic transmission mandrel and valve rod top and a hydraulic transmission core sleeve are by horizontal bolt mechanical connection
2. according to claims 1 described a kind of hydraulicdriven gate valve for welding type high-temperature resistant bellows, 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 below the valve rod with flashboard above valve, 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202101302U CN201526694U (en) | 2009-09-25 | 2009-09-25 | Hydraulic transmission welding type high-temperature resistant corrugated pipe gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202101302U CN201526694U (en) | 2009-09-25 | 2009-09-25 | Hydraulic transmission welding type high-temperature resistant corrugated pipe gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201526694U true CN201526694U (en) | 2010-07-14 |
Family
ID=42517980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202101302U Expired - Fee Related CN201526694U (en) | 2009-09-25 | 2009-09-25 | Hydraulic transmission welding type high-temperature resistant corrugated pipe gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201526694U (en) |
-
2009
- 2009-09-25 CN CN2009202101302U patent/CN201526694U/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 |