CN102374318B - Buffer-type disk float ball valve - Google Patents
Buffer-type disk float ball valve Download PDFInfo
- Publication number
- CN102374318B CN102374318B CN2010102516609A CN201010251660A CN102374318B CN 102374318 B CN102374318 B CN 102374318B CN 2010102516609 A CN2010102516609 A CN 2010102516609A CN 201010251660 A CN201010251660 A CN 201010251660A CN 102374318 B CN102374318 B CN 102374318B
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- China
- Prior art keywords
- valve
- valve shaft
- guide pin
- base
- pin bushing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Float Valves (AREA)
Abstract
The invention discloses a buffer-type disk float ball valve which is characterized in that a float ball and a buffer spring are installed between the a conical valve cover and a base; the base and the conical valve cover are fixedly connected by 2-4 protective rods; a guide sleeve is fixed on the central position of the valve seat by 2-4 support arms; one end of a valve shaft is fixed on the conical valve seat, and the other end of the valve shaft passes through a guide hole of the guide sleeve; and a limit ring is installed, then a limit nut is screwed tightly, and the valve shaft can move up and down in the guide hole. The technical scheme provided by the invention can be widely applied to the field of hydroelectric generation.
Description
Technical field:
The present invention is a kind of unidirectional Water stop valve for hydraulic turbine generator main shaft blowdown pipe.
Background technique:
Do not allow tail water to enter in the generator by the macro-axis blowdown pipe on the hydraulic turbine generator in the too high hydroelectric power plant of tailwater elevation, enter in the generator and will cause a serious accident as tail water.Adopt monomer float valve and two kinds of technological schemes of Hand-operated butterfly valve at present, monomer float valve processing difficulties, poor sealing performance, and under the effect of water hammer, make its distortion, cause and leak; The Hand-operated butterfly valve workload is big, and operation is also extremely inconvenient, and shutdown need manually be closed, and the machine of opening need manually be opened, and wastes time and energy.For this reason, the too high hydraulic generator unit of tailwater elevation is badly in need of a kind of good seal performance, and anti-water hammer ability is strong, does not need the artificial unidirectional Water stop valve that opens and closes.
Summary of the invention:
Purpose of the present invention just provides a kind of good seal performance, the technological scheme of the unidirectional Water stop valve that anti-water hammer ability is strong, it is characterized in that, ball float is housed below tapered valve cover and between the base, fixedly there is buffer rubber gasket the central position on base, between ball float and the tapered valve cover damping spring is housed, the spring seat ring of valve shaft lower end is put in the damping spring upper end, the damping spring lower end withstands on above the ball float, base is fixed together by 2～4 guard bars and tapered valve cover, guide pin bushing is fixed on the valve seat central position by 2～4 support arms, by set screw nut tapered valve cover is fixed on the valve shaft lower end, valve shaft is loaded onto limited ring after passing the guide pin bushing that has pilot hole, with stop nut valve shaft and guide pin bushing are linked together, valve shaft can unrestricted motion in guide pin bushing.By joint hole this device is fixed in the blowdown pipe.
The technique effect that technological scheme provided by the present invention realizes is such: be installed in the buffering type dish type float valve in the blowdown pipe, open when generator set moves, make air mend region of no pressure into unit by the endless belt of valve seat and tapered valve cover; When shutting down; tail water rises the water hammering that forms rapidly on ball float; ball float rises rapidly under buoyancy, the effect of water attack power; promote to move until closing on the tapered valve cover by damping spring; at this moment; damping spring begins to inhale ball float upper punch energy, and the compression damping spring makes the kinetic energy of ball float upper punch convert the elastic potential energy of damping spring to.After ball float kinetic energy absorbs and finishes, ball float moves down under the effect of damping spring again, after ball float is subjected to the buffer function of buoyancy of water damping and buffering rubber pad in folding process, get back to original position, tapered valve cover has good sealing, so whole device organically combines tapered valve cover, damping spring and the work of ball float process wound property, both had good sealing property, had the ability of anti-water hammer again.
Technological scheme involved in the present invention compared with prior art has outstanding progress and significant technique effect, therefore the technical solution of the present invention novel structure is succinct, produce simple, easy for installation, has novelty, creativeness and practicability, and this programme can produce fully, is bound to be widely used in the hydroelectric power field.
Description of drawings:
Fig. 1. buffering type dish type float valve plan view
Wherein:
1, valve seat 2, joint hole 3, support arm
4, pilot hole 5, stop nut 6, limited ring
7, guide pin bushing 8, valve shaft 9, set screw nut
10, O type rubber seal 11, tapered valve cover 12, spring seat ring
13, damping spring 14, ball float 15, guard bar
16, base 17, buffer rubber gasket
Embodiment:
Buffer rubber gasket (17) is fixed on base (16) central position, ball float (14) is placed on above the buffer rubber gasket (17).The valve shaft (8) that will have spring seat ring (12) passes that to have O type rubber seal (10) tapered valve cover (11) fixing with set screw nut (9).Spring seat ring (12) is put in damping spring (13) upper end, and the lower end withstands on above the ball float (14), with 2～4 guard bars (15) base (16) and tapered valve cover (11) is connected and fixed.Guide pin bushing (7) is fixed on the central position of valve seat (1) by support arm (3).After passing the pilot hole (4) of guide pin bushing (7) central position on the valve shaft (8), limited ring (6) is placed on valve shaft (8) upper end, tighten stop nut (5).Enforcement finishes.
Claims (1)
1. buffering type dish type float valve, it is characterized in that, ball float is housed below tapered valve cover and between the base, fixedly there is buffer rubber gasket the central position on base, between ball float and the tapered valve cover damping spring is housed, the spring seat ring of valve shaft lower end is put in the damping spring upper end, the damping spring lower end withstands on above the ball float, base is fixed together by 2～4 guard bars and tapered valve cover, guide pin bushing is fixed on the valve seat central position by 2～4 support arms, by set screw nut tapered valve cover is fixed on the valve shaft lower end, after valve shaft passes the guide pin bushing that has pilot hole, load onto limited ring, with stop nut valve shaft and guide pin bushing are linked together, valve shaft can unrestricted motion in guide pin bushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102516609A CN102374318B (en) | 2010-08-07 | 2010-08-07 | Buffer-type disk float ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102516609A CN102374318B (en) | 2010-08-07 | 2010-08-07 | Buffer-type disk float ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102374318A CN102374318A (en) | 2012-03-14 |
| CN102374318B true CN102374318B (en) | 2013-08-28 |
Family
ID=45793358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102516609A Active CN102374318B (en) | 2010-08-07 | 2010-08-07 | Buffer-type disk float ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102374318B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109755066B (en) * | 2019-02-28 | 2020-03-10 | 珠海格力电器股份有限公司 | Liquid level switch and compressor with same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2049721U (en) * | 1989-01-13 | 1989-12-20 | 广西桂安实业公司 | Twice-control fully-automatic hydraulic controlled valve for water level |
| CN2160799Y (en) * | 1993-05-10 | 1994-04-06 | 鞍山钢铁公司 | Float automatic water-stop exhaust valve |
| JP3109132B2 (en) * | 1991-06-05 | 2000-11-13 | カシオ計算機株式会社 | Time setting device |
| CN201190830Y (en) * | 2008-03-26 | 2009-02-04 | 山东双轮集团股份有限公司 | Straight-way scavenging air valve |
| CN201747507U (en) * | 2010-08-07 | 2011-02-16 | 哈尔滨盛迪电力设备有限公司 | Buffer type disc form ball float valve |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2697165B2 (en) * | 1989-07-12 | 1998-01-14 | 富士通株式会社 | Method for manufacturing semiconductor device |
| JPH03109132A (en) * | 1989-09-22 | 1991-05-09 | Nissan Motor Co Ltd | Liquid fuel flow-out preventing valve |
| JP2952298B2 (en) * | 1990-11-30 | 1999-09-20 | 日産自動車株式会社 | Fuel cut-off device for fuel tank |
-
2010
- 2010-08-07 CN CN2010102516609A patent/CN102374318B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2049721U (en) * | 1989-01-13 | 1989-12-20 | 广西桂安实业公司 | Twice-control fully-automatic hydraulic controlled valve for water level |
| JP3109132B2 (en) * | 1991-06-05 | 2000-11-13 | カシオ計算機株式会社 | Time setting device |
| CN2160799Y (en) * | 1993-05-10 | 1994-04-06 | 鞍山钢铁公司 | Float automatic water-stop exhaust valve |
| CN201190830Y (en) * | 2008-03-26 | 2009-02-04 | 山东双轮集团股份有限公司 | Straight-way scavenging air valve |
| CN201747507U (en) * | 2010-08-07 | 2011-02-16 | 哈尔滨盛迪电力设备有限公司 | Buffer type disc form ball float valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102374318A (en) | 2012-03-14 |
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