CN102454795A - Hydraulic transmission interior-thread-connection-type high-temperature-resistant corrugated pipe stop valve - Google Patents
Hydraulic transmission interior-thread-connection-type high-temperature-resistant corrugated pipe stop valve Download PDFInfo
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- CN102454795A CN102454795A CN2010105183265A CN201010518326A CN102454795A CN 102454795 A CN102454795 A CN 102454795A CN 2010105183265 A CN2010105183265 A CN 2010105183265A CN 201010518326 A CN201010518326 A CN 201010518326A CN 102454795 A CN102454795 A CN 102454795A
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Abstract
The invention provides a hydraulic transmission interior-thread-connection-type high-temperature-resistant corrugated pipe stop valve, and relates to a hydraulic transmission stop valve. The hydraulic transmission interior-thread-connection-type high-temperature-resistant corrugated pipe stop valve comprises an interior-thread-connection-type valve body, wherein a Co-based hard alloy sealing ring is resurfaced and welded on the interior-thread-connection-type valve body; a titanizing austenitic stainless steel dual-corrugated-pipe device is movably and mechanically connected below a valve rod; a lower head of the valve rod is movably and mechanically connected with a valve clack; and a hydraulic transmission head mandrel is rotated to enable a lifting rod of the valve rod to drive the titanizing austenitic stainless steel dual-corrugated-pipe device to lift by a hydraulic transmission head mandrel sleeve. Dual firm and durable corrugated pipes are convenient to disassemble; the interior thread connection is convenient to disassemble; the product structure is reasonable; the sealing is reliable; co-based hard alloy resurfaced and welded on a sealing face and titanizing austenitic stainless steel of the corrugated pipes have good properties of abrasion resistance, erosion resistance and friction resistance and long service life, and the hydraulic transmission interior-thread-connection-type high-temperature-resistant corrugated pipe stop valve is suitable for switching off or switching on pipeline media on pipelines with various working conditions in petroleum, chemical engineering, pharmacy, fertilizers, the electric power industry, and the like.
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.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 present invention provides a kind of hydraulicdriven interior thread connection type high-temperature-resistant corrugated pipe stop valve.
Technological scheme: a kind of hydraulicdriven interior thread connection type high-temperature-resistant corrugated pipe stop valve; Comprise the interior thread connection type valve body, it is characterized in that built-up welding Co base cemented carbide seal ring on the interior thread connection type valve body; The active mechanical connection of the dual bellows arrangement of titanizing Austenitic Stainless Steel is below valve rod; The interior thread 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 active mechanical connection of square toes and flap under the valve rod; 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.
Technique effect: owing to adopt such scheme, simple in structure, easy for installation; Dual robust bellows convenient disassembly, internal thread 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, 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:
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
In the drawings: 1. interior thread 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. flaps.
In instance shown in Figure 1: built-up welding Co base cemented carbide seal ring 2 on the interior thread 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; 4 times square toes of valve rod and flap 19 active mechanical connections; Bellows titanizing Austenitic Stainless Steel is wear-resisting, corrosion resistant, good, the long service life of friction resistant performance; Interior thread 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.
Claims (2)
1. hydraulicdriven interior thread connection type high-temperature-resistant corrugated pipe stop valve; Comprise interior thread connection type interior thread connection type valve body, it is characterized in that built-up welding Co base cemented carbide seal ring on the interior thread connection type valve body, the active mechanical connection of the dual bellows arrangement of titanizing Austenitic Stainless Steel is below valve rod.
2. a kind of hydraulicdriven interior thread connection type high-temperature-resistant corrugated pipe stop valve according to claim 1; It is characterized in that the interior thread connection type 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; The active mechanical connection of square toes and flap under the valve rod; 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; One commentaries on classics of a hydraulic transmission mandrel goes up and down the dual bellows arrangement of valve rod lifting bar drive titanizing Austenitic Stainless Steel through a hydraulic transmission core sleeve, and driving head core sleeve mechanical connection is pressed in the endoporus dosing of valve gap top, and interior dosing pressure driving head mandrel is embedded by hydraulic transmission core sleeve's lateral pin mechanical connection by the hydraulic transmission head unit in the hydraulic transmission core sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105183265A CN102454795A (en) | 2010-10-22 | 2010-10-22 | Hydraulic transmission interior-thread-connection-type high-temperature-resistant corrugated pipe stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105183265A CN102454795A (en) | 2010-10-22 | 2010-10-22 | Hydraulic transmission interior-thread-connection-type high-temperature-resistant corrugated pipe stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102454795A true CN102454795A (en) | 2012-05-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105183265A Pending CN102454795A (en) | 2010-10-22 | 2010-10-22 | Hydraulic transmission interior-thread-connection-type high-temperature-resistant corrugated pipe stop valve |
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| CN (1) | CN102454795A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561595A (en) * | 2018-04-04 | 2018-09-21 | 杭州电子科技大学 | A kind of ship scrubbing tower water-cooling system electric three-way thermostat valve |
-
2010
- 2010-10-22 CN CN2010105183265A patent/CN102454795A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561595A (en) * | 2018-04-04 | 2018-09-21 | 杭州电子科技大学 | A kind of ship scrubbing tower water-cooling system electric three-way thermostat valve |
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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 |