CN102454824A - Hydraulically-driven quick adjustable connection-type high-corrosion-resistance corrugated pipe cut-off valve - Google Patents
Hydraulically-driven quick adjustable connection-type high-corrosion-resistance corrugated pipe cut-off valve Download PDFInfo
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- CN102454824A CN102454824A CN2010105183180A CN201010518318A CN102454824A CN 102454824 A CN102454824 A CN 102454824A CN 2010105183180 A CN2010105183180 A CN 2010105183180A CN 201010518318 A CN201010518318 A CN 201010518318A CN 102454824 A CN102454824 A CN 102454824A
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Abstract
The invention relates to a hydraulically-driven cut-off valve, particularly a hydraulically-driven quick adjustable connection-type high-corrosion-resistance corrugated pipe cut-off valve. The cut-off valve comprises a quick adjustable connection-type valve body, wherein a Co-base hard alloy seal ring is welded on the valve body in an overlay mode; a titanized austenitic stainless steel dual corrugated pipe device is flexibly and mechanically connected to the lower part of a valve stem; the lower head of the valve stem is flexibly and mechanically connected with valve clacks; when a hydraulic drive head mandrel rotates via a hydraulic drive head mandrel sleeve, a valve stem lifting lever drives the titanized austenitic stainless steel dual corrugated pipe device to move up and down; the firm and durable dual corrugated pipe is convenient for demounting; an external pipe and the seal ring are quickly sheathed on the quick adjustable connection-type valve body through the quick adjustable connection claw, and tightened by a pin and a lock; and the quick adjustable connection is convenient for demounting. the Co-base hard alloy is welded on the sealing surface inn overlay mode, and the corrugated pipe titanized austenitic stainless steel has favorable wear resistance, corrosion resistance and friction resistance, and long service life; and thus, the invention is applicable to pipelines under various working conditions in petrifaction petrochemical engineering industry and the like, and is used for cutting off or connecting a pipeline medium.
Description
Technical field:
The present invention relates to a kind of hydraulicdriven 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 gets into 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 gets into 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.So the fully open position of stop valve should be decided by the stroke of flap.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 present invention provides a kind of hydraulicdriven fast and movable connection type high-erosion-resistant corrugated pipe stop valve.
Technological scheme: a kind of hydraulicdriven fast and movable connection type high-erosion-resistant corrugated pipe stop valve; Comprise the quick and movable 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 quick and movable 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 the hydraulic transmission core sleeve, and it is interior by hydraulic transmission head unit mechanical connection that a hydraulic transmission core sleeve fits over a hydraulic transmission mandrel, and a hydraulic transmission mandrel one changes through a hydraulic transmission core sleeve makes the valve rod lifting bar drive the dual bellows arrangement up-down of titanizing Austenitic Stainless Steel; Driving head core sleeve mechanical connection is pressed in the endoporus dosing of valve gap top, and interior dosing presses the driving head mandrel to be embedded by hydraulic transmission core sleeve's lateral pin mechanical connection by the hydraulic transmission head unit in the hydraulic transmission core sleeve.Externally connected pipe and seal ring connect claw and quick and movable connection type valve body mechanical connection by quick and movable, and pin is connected with tight locking button locking.
Technique effect: owing to adopt such scheme, simple in structure, easy for installation; Dual robust bellows convenient disassembly; Quick and movable connects convenient disassembly, connects claw to externally connected pipe and seal ring by quick and movable and is enclosed within fast on the quick and movable connection type valve body, is locked by pin and tight locking button.Product structure is reasonable, sealing is reliable, and 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 petrochemical industry, fertilizer industry, cut off or connect the pipeline medium.
Description of drawings:
Fig. 1 is the schematic representation of the embodiment of the invention.
Embodiment:
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
In the drawings: 1. quick and movable 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 a hydraulic transmissions core sleeve, 13. a hydraulic transmissions mandrel, 14 hydraulic transmissions core sleeve's lateral pin, 15 hydraulic transmission head units; 16. Gland, 17. fillers, 18. times Packing seats, 19. quick and movables connect claw; 20. seal ring, 21. pins, 22. externally connected pipe, 23. tight locking buttons.
In instance shown in Figure 1: built-up welding Co base cemented carbide seal ring 2 on the quick and movable connection type valve body 1; Sealing surface weld deposit Co base cemented carbide, wear-resisting, corrosion resistant, good, the long service life of friction resistant performance; 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, good, the long service life of friction resistant performance; Quick and movable connection type valve body 1 contacts the convex-concave place with valve gap 11 fastening with bolt 6 compression springs 7 nuts 8 by high temperature resistant pad 5 embeddings, puts down Packing seat 18 in the stuffing box on the valve gap 11 and tightened up by the jack screw 9 on the Gland 16 usefulness valve gaps 11 filler 17 by very heavy nut 10 adjustment, and valve rod 4 tops fit in the hydraulic transmission core sleeve 12; A hydraulic transmission core sleeve 12 fits in the hydraulic transmission mandrel 13 and consolidates it by hydraulic transmission head unit 15; A hydraulic transmission mandrel 13 1 changes through a hydraulic transmission core sleeve 12 makes valve rod 4 lifting bars drive dual bellows arrangement 2 up-downs of titanizing Austenitic Stainless Steel, and forced seal face does not leak, and driving head core sleeves 12 are pressed in valve gap 11 top endoporus dosings; In in the hydraulic transmission core sleeve 12 dosing press driving head mandrel 13 by hydraulic transmission head unit 15 embed by hydraulic transmission core sleeve's lateral pin 14 solid it, on valve gap 11, rotate.Connect claw 19 to externally connected pipe 22 and seal ring 20 by quick and movable and be enclosed within fast on the quick and movable connection type valve body 1,, pipeline is connected do not leak by pin 21 and tight locking button 23 lockings.
Claims (3)
1. hydraulicdriven fast and movable connection type high-erosion-resistant corrugated pipe stop valve; Comprise quick and movable connection type quick and movable 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 quick and movable 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.
2. a kind of hydraulicdriven fast and movable connection type high-erosion-resistant corrugated pipe stop valve according to claim 1; It is characterized in that the valve rod top fits over mechanical connection in the hydraulic transmission core sleeve; A hydraulic transmission core sleeve fits in the hydraulic transmission mandrel by hydraulic transmission head unit mechanical connection; A hydraulic transmission mandrel one changes through a hydraulic transmission core sleeve makes the valve rod lifting bar drive the dual bellows arrangement up-down of titanizing Austenitic Stainless Steel; Driving head core sleeve mechanical connection is pressed in the endoporus dosing of valve gap top, and interior dosing presses the driving head mandrel to be embedded by hydraulic transmission core sleeve's lateral pin mechanical connection by the hydraulic transmission head unit in the hydraulic transmission core sleeve.
3. a kind of hydraulicdriven fast and movable connection type high-erosion-resistant corrugated pipe stop valve according to claim 1 is characterized in that externally connected pipe and seal ring connect claw and quick and movable connection type valve body mechanical connection by quick and movable, and pin is connected with tight locking button locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105183180A CN102454824A (en) | 2010-10-22 | 2010-10-22 | Hydraulically-driven quick adjustable connection-type high-corrosion-resistance corrugated pipe cut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105183180A CN102454824A (en) | 2010-10-22 | 2010-10-22 | Hydraulically-driven quick adjustable connection-type high-corrosion-resistance corrugated pipe cut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102454824A true CN102454824A (en) | 2012-05-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105183180A Pending CN102454824A (en) | 2010-10-22 | 2010-10-22 | Hydraulically-driven quick adjustable connection-type high-corrosion-resistance corrugated pipe cut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102454824A (en) |
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2010
- 2010-10-22 CN CN2010105183180A patent/CN102454824A/en active Pending
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120516 |