CN202251966U - Oil-water separation sealing structure for barrel valve servomotor of water turbine - Google Patents
Oil-water separation sealing structure for barrel valve servomotor of water turbine Download PDFInfo
- Publication number
- CN202251966U CN202251966U CN2011203748618U CN201120374861U CN202251966U CN 202251966 U CN202251966 U CN 202251966U CN 2011203748618 U CN2011203748618 U CN 2011203748618U CN 201120374861 U CN201120374861 U CN 201120374861U CN 202251966 U CN202251966 U CN 202251966U
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- sealing
- oil
- water
- servomotor
- sealing seat
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- Expired - Fee Related
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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
Abstract
The utility model provides an oil-water separation sealing structure for a barrel valve servomotor of a water turbine, which comprises a sealing seat which is fixed on a cylinder cover of the servomotor. A water sealing ring and an oil sealing ring are arranged between the sealing seat and a piston rod of the servomotor. A water drainage tank and an oil drainage tank are further positioned in the sealing seat, and the water drainage tank and the oil drainage tank are both arranged between the water sealing ring and the oil sealing ring. A square bidirectional coaxial sealing part is arranged between the sealing seat and the piston rod of the servomotor and between the water drainage tank and the oil drainage tank. The oil-water separation sealing structure for the barrel valve servomotor of the water turbine is good in sealing performance. Oil and water can be treated separately, thereby avoiding environmental pollution.
Description
Technical field
The utility model relates to a kind of hydraulic turbine drum valve servo and uses the oil-water separation sealing configuration, is applied in the tube valve servo sealing with the water wheels unit of cylinder inlet valve.
Background technique
Cylinder inlet valve (hereinafter to be referred as the tube valve) is because it is simple in structure, easy and simple to handle, and volume is little, and the characteristics that cost is low are adopted by domestic large and medium-sized water wheels unit more and more.The tube valve is arranged between turbine gate mechanism and the aqueduct (spiral case), and the motion that is driven tube valve Vertical direction by vertically arranged servomotor reaches to realize the purpose of Open-closure water intake.Wherein the tube valve servo is to guarantee a critical component of the smooth and easy operation of valve; Typical case's tube valve servo layout schematic representation is seen shown in Figure 1; The tube valve servo; Comprise servomotor piston 11, servomotor piston rod 12, be positioned at the servomotor cylinder cap 13 of servomotor cylinder body lower end, servomotor cylinder cap below is provided with servomotor seat 14, and servomotor seat 14 belows are provided with a water-turbine top cover 15 (water distributor place) and a valve body 16 successively.
Servomotor generally is exactly a large hydraulic oil cylinder; Through the high pressure oil in the cylinder body servomotor piston 11 and servomotor piston rod 12 are operated; Because servomotor piston rod 12 stretches out cylinder body and moves back and forth; Contacting part between servomotor piston rod 12 and the servomotor cylinder cap 13 has just become the breakthrough of oil hydraulic cylinder, and oil hydraulic cylinder is provided with sealing usually on servomotor cylinder cap 13.Tube valve servo special is on it that to state " breakthrough " be not to be exposed among the air, but is under the upstream and downstream pressure difference of water power plant, and this pressure is the pressure of 1～3MPa usually.To the situation of this bi-directional compression, for anti-sealing gets into oil cylinder, the structure of " bi-directional combination sealing " is used in the conventional seals design; As shown in Figure 2; " bi-directional combination sealing " is arranged on the sealing seat 1, and sealing seat 1 is bolted on the servomotor cylinder cap 13, bi-directional combination sealing comprise be located between sealing seat 1 and the servomotor piston rod 12, two one-way sealings of installing back-to-back; One is oil seal ring 3; One is water shutoff circle 2, guarantees that the oil hydraulic cylinder process oil can not leak, and outside pressure water can not invaded.Because do not have non-leakage desirable seal fully, oil sealing and water seal certainly exist the seepage of certain trace, therefore in order to prevent that water shutoff circle 2 from occurring high pressure with oil seal ring 3 these two seals are middle owing to suppress strength, has gas pressure relief slot 17.
More than the shortcoming of design is, because leakage of oil is leaked through same gas pressure relief slot 17, oil water mixture can flow into river along current, and environment is caused bigger pollution.Nowadays environmental protection also is one of important performance assessment criteria to the water power plant.
The model utility content
The technical problem that the utility model will solve is that the wheel machine barrel valve servo that provides a kind of good airproof performance, profit separately to handle uses the oil-water separation sealing configuration.
In order to solve the problems of the technologies described above; The hydraulic turbine drum valve servo that the utility model provides is used the oil-water separation sealing configuration; Comprise a sealing seat, said sealing seat is fixed on servomotor cylinder and covers, and is provided with water shutoff circle and oil seal ring between said sealing seat and the servomotor piston rod; Also be provided with sluicing groove and drain pan in the said sealing seat; Said sluicing groove and drain pan all between water shutoff circle and oil seal ring, also are provided with square bidirectional coaxial Sealing between said sealing seat and the servomotor piston rod, said square bidirectional coaxial Sealing is between sluicing groove and drain pan.
Preferably, be provided with a plurality of O-ring seals between said sealing seat and the servomotor cylinder cap.
Preferably, be provided with stepped shaft bidirectional coaxial Sealing between said sealing seat and the servomotor piston rod, said stepped shaft bidirectional coaxial Sealing is near the servomotor piston end.
Preferably, be provided with dust ring between said sealing seat and the servomotor piston rod, said dust ring is away from the servomotor piston end.
The hydraulic turbine drum valve servo of the utility model is used the oil-water separation sealing configuration, leaks can separately handle with leakage of oil, avoids befouling environment, and multiple-sealed structure makes its good airproof performance.
Description of drawings
Fig. 1 is that the cylinder inlet valve is arranged generalized section with the tube valve servo.
Fig. 2 is the enlarged diagram at A place among Fig. 1, also is the schematic representation of the hydraulic turbine drum valve servo of existing technology with the oil-water separation sealing configuration.
Fig. 3 is the schematic representation of the hydraulic turbine drum valve servo of the utility model with the oil-water separation sealing configuration.
Embodiment
Further specify below in conjunction with the scheme of accompanying drawing the utility model.
As shown in Figure 1, a kind of hydraulic turbine drum valve servo of the utility model is used the oil-water separation sealing configuration, comprises a sealing seat 1; Sealing seat 1 usefulness bolt 10 is fixed on the servomotor cylinder cap 13 closing, and is provided with water shutoff circle 2 and oil seal ring 3 between sealing seat 1 and the servomotor piston rod 12, also is provided with sluicing groove 6 and drain pan 7 in the sealing seat 1; Sluicing groove 6 and drain pan 7 are used for draining and oil extraction respectively all between water shutoff circle 2 and oil seal ring 3, also are provided with square bidirectional coaxial Sealing 4 between sealing seat 1 and the servomotor piston rod 12; Square bidirectional coaxial Sealing 4 is between sluicing groove 6 and drain pan 7; In order to separating sluicing groove 6 and drain pan 7, thereby realize oil-water separation, be provided with a plurality of O-ring seals 5 between sealing seat 1 and the servomotor cylinder cap 13; Be illustrated in figure 3 as 3, it is as static seal.
Because design oil pressure higher (greater than 20MPa) is provided with stepped shaft bidirectional coaxial Sealing 8 in the servomotor between sealing seat 1 and the servomotor piston rod 12, stepped shaft bidirectional coaxial Sealing 8 is near servomotor piston 11 ends, as preposition sealing.
Owing to possibly exist impurity or organic substance to be adsorbed on the servomotor piston rod 11 in the river; In the sealing structure, be provided with dust ring 9 between sealing seat 1 and the servomotor piston rod 12, play the dirty effect of scraping; Dust ring 9 is away from servomotor piston 11 ends, in the underpart near servomotor piston rod 12.
The hydraulic turbine drum valve servo of the utility model is used the oil-water separation sealing configuration; Leak and leakage of oil is come out through sluicing groove 6 and drain pan 7 respectively, leaking directly enters downstream canal and flows into river, and leakage of oil is recycled through special pipeline; Leak and separately processing of leakage of oil, protected environment.
On sealing seat 1, process the groove of different shape, water shutoff circle 2, oil seal ring 3, O-ring seals 5, square bidirectional coaxial Sealing 4, stepped shaft bidirectional coaxial Sealing 8, dust ring 9 all are located in these grooves.
More than just the utility model has been carried out exemplary explanation, the concrete implementation of the utility model is not limited thereto.The insubstantial modifications that design of any employing the utility model and technological scheme are carried out is all within the protection domain of the utility model.
Claims (4)
1. a hydraulic turbine drum valve servo is used the oil-water separation sealing configuration; Comprise a sealing seat (1); Said sealing seat (1) is fixed on the servomotor cylinder cap (13); Be provided with water shutoff circle (2) and oil seal ring (3) between said sealing seat (1) and the servomotor piston rod (12), it is characterized in that: also be provided with sluicing groove (6) and drain pan (7) in the said sealing seat (1), said sluicing groove (6) and drain pan (7) all are positioned between water shutoff circle (2) and the oil seal ring (3); Also be provided with square bidirectional coaxial Sealing (4) between said sealing seat (1) and the servomotor piston rod (12), said square bidirectional coaxial Sealing (4) is positioned between sluicing groove (6) and the drain pan (7).
2. hydraulic turbine drum valve servo according to claim 1 is used the oil-water separation sealing configuration, it is characterized in that: be provided with a plurality of O-ring seals (5) between said sealing seat (1) and the servomotor cylinder cap (13).
3. hydraulic turbine drum valve servo according to claim 1 is used the oil-water separation sealing configuration; It is characterized in that: be provided with stepped shaft bidirectional coaxial Sealing (8) between said sealing seat (1) and the servomotor piston rod (12), said stepped shaft bidirectional coaxial Sealing (8) is held near servomotor piston (11).
4. hydraulic turbine drum valve servo according to claim 1 is used the oil-water separation sealing configuration, it is characterized in that: be provided with dust ring (9) between said sealing seat (1) and the servomotor piston rod (12), said dust ring (9) is held away from servomotor piston (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203748618U CN202251966U (en) | 2011-09-28 | 2011-09-28 | Oil-water separation sealing structure for barrel valve servomotor of water turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203748618U CN202251966U (en) | 2011-09-28 | 2011-09-28 | Oil-water separation sealing structure for barrel valve servomotor of water turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202251966U true CN202251966U (en) | 2012-05-30 |
Family
ID=46113209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203748618U Expired - Fee Related CN202251966U (en) | 2011-09-28 | 2011-09-28 | Oil-water separation sealing structure for barrel valve servomotor of water turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202251966U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363115A (en) * | 2013-07-31 | 2013-10-23 | 成都电业局双流供电局 | Sealing member for runner blade of motor |
| CN109342243A (en) * | 2018-11-19 | 2019-02-15 | 江苏科技大学 | Box-type load-holding etching test device |
| CN109374502A (en) * | 2018-11-19 | 2019-02-22 | 江苏科技大学 | Water head difference penetration test device under load-holding condition |
| CN109406293A (en) * | 2018-12-10 | 2019-03-01 | 镇江市高等专科学校 | A kind of observable type concrete test device |
| CN109507097A (en) * | 2018-11-26 | 2019-03-22 | 建湖联众智慧科技有限公司 | A kind of concrete Columns hold lotus etch test device |
| CN110906006A (en) * | 2019-12-13 | 2020-03-24 | 贵州贵航飞机设计研究所 | Novel sealing device |
| WO2021128687A1 (en) * | 2019-12-27 | 2021-07-01 | 南微医学科技股份有限公司 | Pressure pump sealing structure, pressure pump head, and pressure pump |
-
2011
- 2011-09-28 CN CN2011203748618U patent/CN202251966U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363115A (en) * | 2013-07-31 | 2013-10-23 | 成都电业局双流供电局 | Sealing member for runner blade of motor |
| CN109342243A (en) * | 2018-11-19 | 2019-02-15 | 江苏科技大学 | Box-type load-holding etching test device |
| CN109374502A (en) * | 2018-11-19 | 2019-02-22 | 江苏科技大学 | Water head difference penetration test device under load-holding condition |
| CN109374502B (en) * | 2018-11-19 | 2022-05-13 | 江苏科技大学 | Water head difference penetration test device under load-holding condition |
| CN109342243B (en) * | 2018-11-19 | 2022-05-13 | 江苏科技大学 | Box-type load-holding etching test device |
| CN109507097A (en) * | 2018-11-26 | 2019-03-22 | 建湖联众智慧科技有限公司 | A kind of concrete Columns hold lotus etch test device |
| CN109507097B (en) * | 2018-11-26 | 2022-08-19 | 建湖联众智慧科技有限公司 | Load-holding erosion test device for concrete bias column |
| CN109406293A (en) * | 2018-12-10 | 2019-03-01 | 镇江市高等专科学校 | A kind of observable type concrete test device |
| CN110906006A (en) * | 2019-12-13 | 2020-03-24 | 贵州贵航飞机设计研究所 | Novel sealing device |
| WO2021128687A1 (en) * | 2019-12-27 | 2021-07-01 | 南微医学科技股份有限公司 | Pressure pump sealing structure, pressure pump head, and pressure pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20130928 |