CN203797008U - Double-seal hydraulic sluice valve for hydropower station - Google Patents
Double-seal hydraulic sluice valve for hydropower station Download PDFInfo
- Publication number
- CN203797008U CN203797008U CN201420206902.6U CN201420206902U CN203797008U CN 203797008 U CN203797008 U CN 203797008U CN 201420206902 U CN201420206902 U CN 201420206902U CN 203797008 U CN203797008 U CN 203797008U
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- valve
- oil cylinder
- ring
- double
- cylinder seat
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Abstract
The utility model discloses a double-seal hydraulic sluice valve for a hydropower station and belongs to the technical field of hydraulic sluice valves. The double-seal hydraulic sluice valve for the hydropower station is characterized by comprising a valve body. A flashboard is arranged in the valve body, the upper end of the valve body is connected with a bonnet, the upper end of the bonnet is connected with an oil cylinder through an oil cylinder seat, a piston of the oil cylinder and the flashboard are fixedly connected through a valve stem, shaft sleeves are arranged on the contact portions of the valve stem and the oil cylinder seat and the contact portions of the valve stem and the bonnet, packing boxes are arranged on the oil cylinder seat and the end face of the bonnet corresponding to the outer sides of the shaft sleeves, V-shaped fabric-inlaid rubber combined sealing rings are arranged between the packing boxes and the corresponding valve stem, pressure rings are arranged at free ends of the V-shaped fabric-inlaid rubber combined sealing ring, and the pressure rings are fixed on the corresponding packing boxes. Static sealing structures are arranged between the oil cylinder seat and the bonnet and the corresponding packing boxes. The double-seal hydraulic sluice valve for the hydropower station is reasonable in structure, good in sealing effect and long in service life and is used for water flow control of generator units of the hydropower station.
Description
Technical field
The utility model relates to a kind of hydraulic sluice valve, more particularly, relates in particular to a kind of double-sealing hydraulic sluice valve for water power plant.
Background technique
Existing hydraulic sluice valve, the sealing configuration that on oil cylinder seat and valve gap, design matches with valve rod, for adopting simple O shape circle to seal.This structure, is used and may not have too large impact in some field.But at water conservancy system, for example, in water power plant, the hydraulic sluice valve of installing, its valve stem part and flashboard need long period of soaking in water, will deposit some silt foreign material in stem surface like this, in the time that hydraulic sluice valve is worked, foreign material will rub with O shape circle, make the O shape of valve gap position enclose Fast Wearing and occur water leakage phenomenon; Same, because valve rod is movable part, in active procedure, can produce friction with O shape circle, cause the Fast Wearing of O shape circle, also can make oil cylinder occur leakage of oil situation.When serious, may affect the normal use of hydraulic sluice valve.And water power plant be in water conservancy system very must a part, when in flash flood or bust heavy rain, heavy rain cause river, the water surface goes up fast, need to open the sluices in time and carry out flood discharge, if and now water power plant goes wrong for the hydraulic sluice valve of assisting regulating gate to open, this will be to water power plant, and even the village of lower reaches of river, personnel cause the loss that cannot estimate.Therefore, be necessary very much the existing hydraulic sluice valve for water power plant to improve, can normally working the phase, ensure the normal operation in water power plant.
Summary of the invention
The purpose of this utility model is for above-mentioned the deficiencies in the prior art, and the double-sealing hydraulic sluice valve for water power plant of a kind of rational in infrastructure, good sealing effect and long service life is provided.
The technical solution of the utility model is achieved in that a kind of double-sealing hydraulic sluice valve for water power plant, comprise valve body, in valve body, be provided with flashboard, be connected with valve gap in valve body upper end, be connected with oil cylinder in valve gap upper end by oil cylinder seat, the valve rod by stainless steel between the piston of wherein said oil cylinder and flashboard is fixedly connected with; Be equipped with axle sleeve at the contacting part of valve rod and oil cylinder seat and the contacting part of valve rod and valve gap, on oil cylinder seat corresponding to axle sleeve outside and valve gap end face, be equipped with stuffing box, the V-arrangement opening direction that is equipped with V-arrangement folder fabric building rubber compound seal ring and each V clevis fabric building rubber compound seal ring between stuffing box and the valve rod of correspondence is all towards corresponding axle sleeve, be equipped with pressure ring at V-arrangement folder fabric building rubber compound seal ring free end, pressure ring is fixed on corresponding stuffing box; Between described oil cylinder seat and valve gap and corresponding stuffing box, be provided with static seal structure.
Above-mentioned a kind of double-sealing hydraulic sluice valve for water power plant, described static seal structure is made up of the O shape circle that is arranged on the first annular positioning groove of stuffing box end face and be arranged in the first annular positioning groove.
Above-mentioned a kind of double-sealing hydraulic sluice valve for water power plant, on the stuffing box end face of static seal structure side, be provided with positioning convex ring, be equipped with at oil cylinder seat and valve gap end face the second annular positioning groove adapting with corresponding positioning convex ring, be provided with seal washer at each the second circular orientation groove bottom.
Above-mentioned a kind of double-sealing hydraulic sluice valve for water power plant, described the second annular positioning groove inner bottom part is provided with arc slot to make way.
Above-mentioned a kind of double-sealing hydraulic sluice valve for water power plant, on valve gap interior edge face, be fixed with the stainless steel scrubbing ring adapting to valve rod, the internal diameter of described stainless steel scrubbing ring is identical with the external diameter of valve rod, described stainless steel scrubbing ring free end outer wall is inclined-plane, and this inclined-plane coordinates formation scrubbing angle with stainless steel scrubbing ring inner surface.
The utility model adopts after said structure, first coordinate with stuffing box and pressure ring and form sealing configuration by each V clevis fabric building rubber compound seal ring, and the opening direction that V-arrangement is pressed from both sides to fabric building rubber compound seal ring is towards corresponding axle sleeve, need the direction of sealing, sealability is improved greatly, and significantly improve working life; Meanwhile, for preventing that stuffing box from occurring leakage situation with oil cylinder seat or the valve gap of corresponding contact, is provided with static seal structure between its contacting part.Further, consider validity, stability and the working life of sealing, adopt O shape circle to be aided with again the sealing configuration of the second annular positioning groove and seal washer, and at the second annular positioning groove inner bottom part, arc slot to make way is set, both made stuffing box be in place, and made again can form stable sealing configuration between stuffing box and corresponding contact component.
Brief description of the drawings
Below in conjunction with the embodiment in accompanying drawing, the utility model is described in further detail, but do not form any restriction of the present utility model.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the local enlarged diagram at A place in Fig. 1;
Fig. 3 is the local enlarged diagram at B place in Fig. 2.
In figure: valve body 1, flashboard 2, valve gap 3, oil cylinder seat 4, oil cylinder 5, valve rod 6, axle sleeve 7, stuffing box 8, the first annular positioning groove 8a, positioning convex ring 8b, V-arrangement folder fabric building rubber compound seal ring 9, pressure ring 10, O shape circle 11, the second annular positioning groove 12, seal washer 13, arc slot to make way 14, stainless steel scrubbing ring 15.
Embodiment
Consult shown in Fig. 1 to Fig. 3, a kind of double-sealing hydraulic sluice valve for water power plant of the present utility model, comprise valve body 1, in valve body 1, be provided with flashboard 2, be connected with valve gap 3 in valve body 1 upper end, be connected with oil cylinder 5 in valve gap 3 upper ends by oil cylinder seat 4, between the piston of oil cylinder 5 and flashboard 2, be fixedly connected with by the valve rod 6 of stainless steel, be equipped with axle sleeve 7 at the contacting part of valve rod 6 and oil cylinder seat 4 and the contacting part of valve rod 6 and valve gap 3, valve rod 6 peripheries in axle sleeve 7 outsides are equipped with identical sealing configuration, be specially: on the oil cylinder seat 4 of axle sleeve 7 outside correspondences and valve gap 3 end faces, be equipped with stuffing box 8, the V-arrangement opening direction that is equipped with V-arrangement folder fabric building rubber compound seal ring 9 and each V clevis fabric building rubber compound seal ring 9 between stuffing box 8 and the valve rod 6 of correspondence is all towards corresponding axle sleeve 7, be equipped with pressure ring 10 at V-arrangement folder fabric building rubber compound seal ring 9 free ends, pressure ring 10 is fixed on corresponding stuffing box 8, between described oil cylinder seat 4 and valve gap 3 and corresponding stuffing box 8, be provided with static seal structure, described static seal structure is made up of the O shape circle 11 that is arranged on the first annular positioning groove 8a of stuffing box 8 end faces and be arranged in the first annular positioning groove 8a.Simultaneously, on valve gap 3 interior edge faces, be fixed with the stainless steel scrubbing ring 15 adapting to valve rod 6, the internal diameter of described stainless steel scrubbing ring 15 is identical with the external diameter of valve rod 6, and described stainless steel scrubbing ring 15 free end outer walls are inclined-plane, and this inclined-plane coordinates formation scrubbing angle with stainless steel scrubbing ring 15 internal surfaces.This structure, makes valve rod 6 in the time packing up, and the impurity that sticks to valve rod 6 peripheries can be effectively removed at scrubbing angle, effectively prevents the wear-out failure of impurity to V-arrangement folder fabric building rubber compound seal ring 9.
Further, for improving sealability, extend the life-span of sealing configuration, on stuffing box 8 end faces of static seal structure side, be provided with positioning convex ring 8b, be equipped with at oil cylinder seat 4 and valve gap 3 end faces the second annular positioning groove 12 adapting with corresponding positioning convex ring 8b, be provided with seal washer 13 in each the second annular positioning groove 12 bottoms.And, for positioning convex ring 8b can be entered in the second annular positioning groove 12 completely, stuffing box 8 is fitted tightly with corresponding oil cylinder seat 4 or valve gap 3 contacting parts, be equipped with arc slot to make way 14 at the second annular positioning groove 12 inner bottom parts, make seal washer 13 there is certain bit space that allows, in ensureing sealing, can not hinder the accurate installation of stuffing box 8.
Above illustrated embodiment is preferred embodiments of the present utility model, only be used for facilitating explanation the utility model, not the utility model is done to any pro forma restriction, under any, in technical field, have and conventionally know the knowledgeable, if not departing from the scope of technical characteristics that the utility model is carried, utilize technology contents that the utility model discloses to do the local equivalent embodiment who changes or modify, and do not depart from technical characteristics content of the present utility model, all still belong in the scope of the utility model technical characteristics.
Claims (5)
1. the double-sealing hydraulic sluice valve for water power plant, comprise valve body (1), in valve body (1), be provided with flashboard (2), be connected with valve gap (3) in valve body (1) upper end, be connected with oil cylinder (5) in valve gap (3) upper end by oil cylinder seat (4), it is characterized in that, the valve rod (6) by stainless steel between the piston of described oil cylinder (5) and flashboard (2) is fixedly connected with, be equipped with axle sleeve (7) at the contacting part of valve rod (6) and oil cylinder seat (4) and the contacting part of valve rod (6) and valve gap (3), on oil cylinder seat (4) corresponding to axle sleeve (7) outside and valve gap (3) end face, be equipped with stuffing box (8), between stuffing box (8) and corresponding valve rod (6), be equipped with the V-arrangement opening direction of V-arrangement folder fabric building rubber compound seal ring (9) and each V clevis fabric building rubber compound seal ring (9) all towards corresponding axle sleeve (7), be equipped with pressure ring (10) at V-arrangement folder fabric building rubber compound seal ring (9) free end, pressure ring (10) is fixed on corresponding stuffing box (8), between described oil cylinder seat (4) and valve gap (3) and corresponding stuffing box (8), be provided with static seal structure.
2. a kind of double-sealing hydraulic sluice valve for water power plant according to claim 1, it is characterized in that, described static seal structure is made up of the O shape circle (11) that is arranged on first annular positioning groove (8a) of stuffing box (8) end face and be arranged in the first annular positioning groove (8a).
3. a kind of double-sealing hydraulic sluice valve for water power plant according to claim 1 and 2, it is characterized in that, on stuffing box (8) end face of static seal structure side, be provided with positioning convex ring (8b), be equipped with at oil cylinder seat (4) and valve gap (3) end face the second annular positioning groove (12) adapting with corresponding positioning convex ring (8b), be provided with seal washer (13) in each the second annular positioning groove (12) bottom.
4. a kind of double-sealing hydraulic sluice valve for water power plant according to claim 3, is characterized in that, described the second annular positioning groove (12) inner bottom part is provided with arc slot to make way (14).
5. a kind of double-sealing hydraulic sluice valve for water power plant according to claim 1 and 2, it is characterized in that, on valve gap (3) interior edge face, be fixed with the stainless steel scrubbing ring (15) adapting to valve rod (6), the internal diameter of described stainless steel scrubbing ring (15) is identical with the external diameter of valve rod (6), described stainless steel scrubbing ring (15) free end outer wall is inclined-plane, and this inclined-plane coordinates formation scrubbing angle with stainless steel scrubbing ring (15) internal surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420206902.6U CN203797008U (en) | 2014-04-26 | 2014-04-26 | Double-seal hydraulic sluice valve for hydropower station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420206902.6U CN203797008U (en) | 2014-04-26 | 2014-04-26 | Double-seal hydraulic sluice valve for hydropower station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203797008U true CN203797008U (en) | 2014-08-27 |
Family
ID=51379220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420206902.6U Expired - Fee Related CN203797008U (en) | 2014-04-26 | 2014-04-26 | Double-seal hydraulic sluice valve for hydropower station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203797008U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439161A (en) * | 2016-11-21 | 2017-02-22 | 扬中市阀门厂有限公司 | High-stability bonnet component of rotary distribution valve |
-
2014
- 2014-04-26 CN CN201420206902.6U patent/CN203797008U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439161A (en) * | 2016-11-21 | 2017-02-22 | 扬中市阀门厂有限公司 | High-stability bonnet component of rotary distribution valve |
| CN106439161B (en) * | 2016-11-21 | 2023-12-05 | 扬中市阀门厂有限公司 | High-stability valve cover member of rotary distribution valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20200426 |