CN200946671Y - Double seal hydraulic-control butterfly valve - Google Patents
Double seal hydraulic-control butterfly valve Download PDFInfo
- Publication number
- CN200946671Y CN200946671Y CN 200620052163 CN200620052163U CN200946671Y CN 200946671 Y CN200946671 Y CN 200946671Y CN 200620052163 CN200620052163 CN 200620052163 CN 200620052163 U CN200620052163 U CN 200620052163U CN 200946671 Y CN200946671 Y CN 200946671Y
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- CN
- China
- Prior art keywords
- maintenance
- valve body
- butterfly plate
- sealing
- valve
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a double seal hydraulic-control butterfly valve in which a butterfly plate operation sealing ring(14) and a butterfly maintenance sealing ring(15) arranged on a butterfly plate(4), a valve body operation sealing base(3) which matches the butterfly plate operation sealing ring(14) is arranged on the valve body(5), a maintenance sleeve(11) is arranged between the valve body(5) and a telescopic sleeve(13), a regulation screw(9) is wrapped by the maintenance sleeve(11), a regulation screw nut(10) is arranged on the regulation screw(9), a first sealing device(8) is arranged on the valve body, a second sealing device(12) is arranged on the maintenance sleeve(11) and a valve body maintenance sealing base(7) which matches the butterfly maintenance sealing ring(15) is arranged on the maintenance sleeve(11). The utility model is a double seal hydraulic-control butterfly valve which does not effect the normal operation of other machine groups when maintaining the operating seal without the need to drain the water in the pipe before the valve and is simple in structure, convenient to produce and reliable in performance.
Description
Technical field
The utility model relates to a kind of butterfly valve, particularly relates to a kind of double-sealing hydraulic butterfly valve.
Background technique
In the hydraulic butterfly valve that water power hydroturbine water intake place uses, the waterexit end of hydraulic butterfly valve is provided with slip joint, and the valve body of hydraulic butterfly valve and valve (butterfly plate) are provided with the working seal pair, and the working seal pair comes into operation during proper functioning; When the working seal pair needs maintenance, the water in the pipeline before and after the hydraulic butterfly valve need be bled off, influenced other unit and normally moved, also waste the water in the valve preceding pipeline.
The model utility content
Technical problem to be solved in the utility model can not influence other units when providing the secondary maintenance of a kind of working seal normally to be moved, and also needn't bleed off the double-sealing hydraulic butterfly valve of water in the valve preceding pipeline.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of double-sealing hydraulic butterfly valve, the slip joint that comprises valve body, butterfly plate and band extension sleeve, be provided with butterfly plate working seal circle in the hydraulic butterfly valve waterexit end, on valve body, be provided with the valve body working seal seat corresponding, form the working seal pair with butterfly plate working seal circle; Be provided with butterfly plate maintenance seal ring at the hydraulic butterfly valve feed-water end; Between valve body and extension sleeve, be provided with the maintenance sleeve, the flange of maintenance sleeve is enclosed within the adjusting screw rod that is used to connect valve body and extension sleeve, on adjusting screw rod, be provided with the adjusting nut that is used to regulate maintenance sleeve position, on valve body, be provided with first seal arrangement that acts on maintenance sleeve periphery, on the maintenance sleeve, be provided with second seal arrangement that acts on extension sleeve, prevent the outer seepage of working medium; The maintenance sleeve extend in the valve body, and the end is provided with the corresponding slidable maintenance sealing seat of butterfly plate maintenance seal ring with the butterfly plate feed-water end.
Adopt the double-sealing hydraulic butterfly valve of technique scheme, only butterfly plate working seal circle and valve body working seal seat come into operation during proper functioning; When butterfly plate working seal circle need overhaul, normally move for not influencing other unit, hydraulic butterfly valve is closed to the complete shut-down position, regulate adjusting screw rod and be provided with the adjusting nut that is used to regulate maintenance sleeve position, the maintenance sleeve is slided, contact with butterfly plate maintenance seal ring, the maintenance sealing is devoted oneself to work, block current, only need bleed off ducted water behind the valve, just can overhaul butterfly plate working seal circle in the waterexit end of valve body.After maintenance finished, aforesaid way moved the maintenance sleeve again, and maintenance sealing is thrown off, and prevented to overhaul to be sealed in hydraulic butterfly valve and to drive valve and close wearing and tearing in the valve process, reduced out valve and closed the valve rub-moment, prolonged maintenance sealing working life.
This double-sealing hydraulic butterfly valve also is provided with demonstration and the limit stoper that the maintenance sealing drops into and removes, and can send the electrical signal of position.Valve body lower portion is provided with discharging valve, can bleed off the remaining water in valve body middle part.
Butterfly plate working seal circle adopts the real core rubber of the wear-resisting T shape of high-quality, and on butterfly plate, valve body working seal seat adopts stainless steel, formation rubber one stainless steel sealing configuration with corrosion resistant stainless steel trim ring and screw.Butterfly plate maintenance seal ring and valve body maintenance sealing seat adopt metallic elastic hard sealing structure form.Valve body maintenance sealing seat is located at the maintenance sleeve ends, adopts conical surface form, and butterfly plate maintenance seal ring is the stainless steel metal elastic sealing ring, with corrosion resistant stainless steel trim ring and screw on butterfly plate.
In sum, the utility model can not influence other units when being a kind of maintenance and normally move, and need not bleed off the water in the valve preceding pipeline yet, and double-sealing hydraulic butterfly valve simple in structure, easily manufactured, reliable performance.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model structure enlarged view.
Embodiment
Referring to Fig. 1 and Fig. 2, in butterfly plate 5 waterexit ends butterfly plate working seal circle 14 is arranged, on valve body 5, be provided with the valve body working seal seat 3 corresponding with butterfly plate working seal circle 14; Be provided with butterfly plate maintenance seal ring 15 at butterfly plate 4 feed-water ends; Between valve body 5 and extension sleeve 13, be provided with maintenance sleeve 11, the flange of maintenance sleeve 11 is enclosed within the adjusting screw rod 9 that is used to connect valve body 5 and extension sleeve 13, on adjusting screw rod 9, be provided with the adjusting nut 10 that is used to regulate maintenance sleeve 11 positions, on valve body 5, be provided with first seal arrangement 8 that acts on maintenance sleeve 11 cylindricals, on maintenance sleeve 11, be provided with second seal arrangement 12 that acts on extension sleeve 13; Maintenance sleeve 11 extend into ends in the valve body 5 and is provided with the maintenance sealing seat 7 corresponding with the butterfly plate maintenance seal ring 15 of butterfly plate 4 feed-water ends.
This double-sealing hydraulic butterfly valve also is provided with demonstration and the limit stoper that the maintenance sealing drops into and removes, and can send the electrical signal of position.Valve body lower portion is provided with discharging valve, can bleed off the remaining water in valve body middle part.
Referring to Fig. 1 and Fig. 2, butterfly plate working seal circle 14 and valve body working seal circle 3 adopt the real core rubber of the wear-resisting T shape of high-quality one stainless steel sealing configuration.Valve body working seal circle 3 is the stainless steel sealing seat, butterfly plate working seal circle 14 adopts the real core rubber seal 2 of the wear-resisting T shape of high-quality, with corrosion resistant stainless steel trim ring 1 and screw on butterfly plate 4, the required seal pressure of valve passes through stainless steel trim ring 1 screw adjusted, with the stainless steel sealing seat formation sealing on the valve body 5.During butterfly plate 4 complete shut-downs, under hydraulic action, the real core rubber seal 2 of T shape more is adjacent to the valve seal seat, and it is better to make it sealing effect.
Referring to Fig. 1 and Fig. 2, butterfly plate maintenance seal ring 15 and valve body maintenance seal ring 7 adopt metallic elastic hard sealing structure form.Valve body maintenance seal ring 7 is located on maintenance sleeve 11 ends, adopts conical surface form, and material is i.e. 304 stainless steels of OCr19Ni9, and butterfly plate maintenance seal ring 15 is elastic metallic sealing 6, and material is through the 1Cr18Ni9Ti of cure process stainless steel.When needing butterfly plate maintenance seal ring 15 and valve body maintenance seal ring 7 to drop into, earlier hydraulic butterfly valve is closed to the complete shut-down position, pull the adjusting nut 10 on 8 adjusting screw rods 9 on the maintenance sleeve 11 with spanner, 11 slippages of maintenance sleeve, after making butterfly plate maintenance seal ring 15 and 7 butt joints of valve body maintenance seal ring, the tilted conical sealing surface jam-packed elastic metallic seal ring 6 of the valve body maintenance seal ring 7 on the maintenance sleeve 11, elastic metallic seal ring 6 on the butterfly plate outwards expands under hydraulic action simultaneously, can obtain reliable seal pressure.The discharging valve of opening conduits bottom then bleeds off pipeline and maintenance behind the hydraulic butterfly valve valve and is sealed to water in the working seal chamber, can overhaul butterfly plate working seal circle 14.When needing the maintenance sealing to remove, pull on the maintenance sleeve 11 adjusting nut 10 on 8 adjusting screw rods 9 with spanner, 11 slippages of maintenance sleeve are removed the maintenance sealing.When butterfly plate 4 rotations, maintenance sealing friction without spin makes hydraulic butterfly valve unlatching moment little, long service life.
Claims (5)
1, a kind of double-sealing hydraulic butterfly valve, comprise valve body (5), butterfly plate (4) maintenance sleeve (11) and extension sleeve (13), it is characterized in that: in described butterfly plate (4) waterexit end butterfly plate working seal circle (14) is arranged, on described valve body (5), be provided with the valve body working seal seat (3) corresponding with described butterfly plate working seal circle (14); Be provided with butterfly plate maintenance seal ring (15) at described butterfly plate (4) feed-water end; Between described valve body (5) and described extension sleeve (13), be provided with maintenance sleeve (11), the flange of described maintenance sleeve (11) is enclosed within the adjusting screw rod (9) that is used to connect described valve body (5) and described extension sleeve (13), on described adjusting screw rod (9), be provided with the adjusting nut (10) that is used to regulate described maintenance sleeve (11) position, on described valve body (5), be provided with first seal arrangement (8) that acts on described maintenance sleeve (11), on described maintenance sleeve (11), be provided with second seal arrangement (12) that acts on described extension sleeve (13); The end that described maintenance sleeve (11) extend in the described valve body (5) is provided with the valve body maintenance sealing seat (7) corresponding with the butterfly plate maintenance seal ring (15) of described butterfly plate (5) feed-water end.
2, double-sealing hydraulic butterfly valve according to claim 1, it is characterized in that: described butterfly plate working seal circle (14) and described valve body working seal seat (3) adopt the real core rubber of wear-resisting T shape-stainless steel sealing configuration, described valve body working seal circle (3) is the stainless steel sealing seat, described butterfly plate working seal circle (14) adopts the real core rubber seal (2) of wear-resisting T shape, with corrosion resistant stainless steel trim ring (1) and screw on described butterfly plate (4).
3, double-sealing hydraulic butterfly valve according to claim 1 and 2, it is characterized in that: described butterfly plate maintenance seal ring (15) and valve body maintenance seal ring (7) adopt metallic elastic hard sealing structure form, described valve body maintenance seal ring (7) adopts conical surface form, and described butterfly plate maintenance seal ring (15) is elastic metallic seal ring (6).
4, double-sealing hydraulic butterfly valve according to claim 1 and 2 is characterized in that: hydraulic butterfly valve also is provided with demonstration and the limit stoper that the maintenance sealing drops into and removes, and can send the electrical signal of position.Valve body lower portion is provided with discharging valve, can bleed off the remaining water in valve body middle part.
5, double-sealing hydraulic butterfly valve according to claim 3 is characterized in that: hydraulic butterfly valve also is provided with demonstration and the limit stoper that the maintenance sealing drops into and removes, and can send the electrical signal of position.Valve body lower portion is provided with discharging valve, can bleed off the remaining water in valve body middle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620052163 CN200946671Y (en) | 2006-09-08 | 2006-09-08 | Double seal hydraulic-control butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620052163 CN200946671Y (en) | 2006-09-08 | 2006-09-08 | Double seal hydraulic-control butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200946671Y true CN200946671Y (en) | 2007-09-12 |
Family
ID=38733734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620052163 Expired - Fee Related CN200946671Y (en) | 2006-09-08 | 2006-09-08 | Double seal hydraulic-control butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200946671Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213321A (en) * | 2011-06-24 | 2011-10-12 | 铁岭阀门(集团)特种阀门有限责任公司 | Dual seal water-filling butterfly valve |
| CN102384274A (en) * | 2011-11-17 | 2012-03-21 | 株洲南方阀门股份有限公司 | Double-seal butterfly valve with maintenance sealing system |
| CN103453155A (en) * | 2013-08-30 | 2013-12-18 | 中阀科技(长沙)阀门有限公司 | Full-manual dual-seal butterfly valve of movable sealing device independent of valve body |
-
2006
- 2006-09-08 CN CN 200620052163 patent/CN200946671Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213321A (en) * | 2011-06-24 | 2011-10-12 | 铁岭阀门(集团)特种阀门有限责任公司 | Dual seal water-filling butterfly valve |
| CN102213321B (en) * | 2011-06-24 | 2013-06-12 | 铁岭阀门(集团)特种阀门有限责任公司 | Dual seal water-filling butterfly valve |
| CN102384274A (en) * | 2011-11-17 | 2012-03-21 | 株洲南方阀门股份有限公司 | Double-seal butterfly valve with maintenance sealing system |
| CN102384274B (en) * | 2011-11-17 | 2014-04-09 | 株洲南方阀门股份有限公司 | Double-seal butterfly valve with maintenance sealing system |
| CN103453155A (en) * | 2013-08-30 | 2013-12-18 | 中阀科技(长沙)阀门有限公司 | Full-manual dual-seal butterfly valve of movable sealing device independent of valve body |
| CN103453155B (en) * | 2013-08-30 | 2016-09-14 | 中阀科技(长沙)阀门有限公司 | Moving sealing device is independent of the complete manual double seals butterfly valve of valve body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |