CN201155420Y - Hydroturbine emergency stop device based on cartridge valve - Google Patents
Hydroturbine emergency stop device based on cartridge valve Download PDFInfo
- Publication number
- CN201155420Y CN201155420Y CNU2008200280623U CN200820028062U CN201155420Y CN 201155420 Y CN201155420 Y CN 201155420Y CN U2008200280623 U CNU2008200280623 U CN U2008200280623U CN 200820028062 U CN200820028062 U CN 200820028062U CN 201155420 Y CN201155420 Y CN 201155420Y
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- China
- Prior art keywords
- valve
- cartridge valve
- cartridge
- servomotor
- oil
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- 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
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Abstract
The utility model relates to a cartridge-inserted-valve-based turbine malfunction arrestor, which comprises a cartridge-inserted valve A and a cartridge-inserted valve B which are serially connected with an oil loop of a high oil-pressure speed regulator reversing valve and a servomotor, and a cartridge-inserted valve C and a cartridge-inserted valve D which are connected with the servomotor in parallel, and also comprises an electromagnetic reverse valve; the cartridge-inserted valve A is serially connected with an oil loop that connects the high oil-pressure speed regulator and the starting cavity of the servomotor; the cartridge-inserted valve B is serially connected with an oil loop that connects the high oil-pressure reverse valve and the shut-down cavity of the servomotor; the cartridge-inserted valve A and the cartridge-inserted valve B are connected with one through port of the electromagnetic reverse valve; the cartridge-inserted valve C is connected with the servomotor shutdown cavity and a high-pressure oil loop; the cartridge-inserted valve D is connected with the servomotor starting cavity and a return oil loop; the cartridge-inserted valve C and the cartridge-inserted valve D are connected with another through port of the electromagnetic reverse valve. The arrestor is used when the high oil-pressure speed regulator is applied to a large-sized turbine unit.
Description
Technical field
The utility model belongs to water power plant power equipment technical field, relates to a kind of accidental shutdown device, is specifically related to a kind of water turbine accidental shutdown device based on cartridge valve.
Background technique
Water wheels unit accidental shutdown device when being the inefficacy of hydrogovernor emergency stop device, in order to guide vane closing, is realized a kind of device of reliable accidental shutdown.
Existing water turbine accidental shutdown device is on the turbine chamber side emergency distributing valve to be set, and during the speed regulator akinesia, emergency distributing valve is to the servomotor fuel feeding, and guide vane closing is realized reliable accidental shutdown.Emergency distributing valve and the supporting use of low oil pressure speed regulator have identical low pressure oil sources, need bigger flow when realizing certain operating work, and volume is big (suitable with speed regulator main control valve latus rectum).The oil circuit of emergency distributing valve is in parallel with the oil circuit of speed regulator, and the oil circuit latus rectum is identical with the main control valve latus rectum, and on-the-spot stringing complexity is not easy to manually-operable.
Recently, improve high oil pressure speed regulator successful Application on middle-size and small-size water wheels unit of pressure rating, employing hydraulic pressure standard component, and to relatively large water wheels unit development.High oil pressure speed regulator is applied to relatively large unit, and the accidental shutdown device need be set, and traditional emergency distributing valve can not adapt to the requirement of high oil pressure speed regulator to the accidental shutdown device.
Summary of the invention
The purpose of this utility model provides a kind of water turbine accidental shutdown device based on cartridge valve, can be used in relatively large water wheels unit with high oil pressure speed regulator, realizes accidental shutdown.
The technological scheme that the utility model adopted is; a kind of water turbine accidental shutdown device based on cartridge valve; comprise identical being connected on cartridge valve A, the cartridge valve B on high oil pressure speed regulator selector valve and the servomotor oil circuit and being connected in servomotor start chamber in parallel and cartridge valve C, the cartridge valve D in start chamber of latus rectum, also comprise solenoid directional control valve.Cartridge valve A is connected on the oil circuit that connects high oil pressure speed regulator selector valve and servomotor start chamber, cartridge valve B is connected on the oil circuit that connects high oil pressure selector valve and servomotor shutdown chamber, cartridge valve A, cartridge valve B guiding oil circuit is connected with a port of solenoid directional control valve, cartridge valve C is connected on servomotor shutdown chamber and the high-pressure oil passage, cartridge valve D is connected on servomotor start chamber and the oil return circuit, and cartridge valve C, cartridge valve D guiding oil circuit is connected with another port of solenoid directional control valve.
Feature of the present utility model also is,
Cartridge valve D has stroke adjustment.
The beneficial effects of the utility model are to be used in relatively large water wheels unit with high oil pressure speed regulator, realize accidental shutdown.
The utility model compared with prior art has the following advantages:
1. adopt cartridge valve to replace emergency distributing valve, reliable performance, simple in structure, cheap.
2. all pipeline series parallel connection realize in speed regulator, no exposed conduit, and installation is convenient, low, the beautiful shape of cost.
3. the accidental shutdown device is located in the speed regulator rack, and operation is convenient.
4. whole design of Hydraulic System novelty, compact structure.
Description of drawings
Accompanying drawing is the structural representation of arresting gear of the present utility model.
Among the figure, 1. cartridge valve A, 2. cartridge valve B, 3. cartridge valve C, 4. cartridge valve D, 5. solenoid directional control valve, 6. servomotor, 7. high oil pressure speed regulator selector valve.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
The structure of arresting gear of the present utility model as shown in drawings; big latus rectum cartridge valve A1, cartridge valve B2 are connected on the oil circuit of high oil pressure speed regulator selector valve 7 and servomotor 6; cartridge valve A1 is connected on start chamber one side of servomotor 6; cartridge valve B2 is connected on shutdown chamber one side of servomotor 6, and cartridge valve A1, cartridge valve B2 guiding oil circuit is connected with a port of solenoid directional control valve 5.Start chamber that the cartridge valve C3 that latus rectum is identical, cartridge valve D4 are connected in servomotor 6 in parallel and shutdown chamber, cartridge valve C3 is connected on the shutdown chamber and high-pressure oil passage of servomotor 6, and cartridge valve D4 is connected on the start chamber and oil return circuit of servomotor 6.Another port of cartridge valve C3, cartridge valve D4 guiding oil circuit and solenoid directional control valve 5 is communicated with.
During normal the operation, the logical pressure oil of guiding oil of cartridge valve C3, cartridge valve D4, with the working connection and the system oil-way disconnection of two cartridge valves, cartridge valve is closed.Cartridge valve A1 and cartridge valve B2 open, and the logical oil extraction of guiding oil of this two cartridge valve makes both direction fluid free-flow in the cartridge valve working connection, and high oil pressure speed regulator selector valve 7 is communicated with and control servomotor 6.During shutdown, high pressure oil flows out the shutdown chamber that enters servomotor 6 by cartridge valve B2 from high oil pressure speed regulator selector valve 7, and the piston that promotes servomotor 7 moves, and the oil in the start chamber of servomotor 6 refluxes by cartridge valve A1, impels water turbine to shut down.
During accidental shutdown, cartridge valve A1, cartridge valve B2 are closed in solenoid directional control valve 5 commutations, and cartridge valve C3 and cartridge valve D4 open.Oil circuit between high oil pressure speed regulator and the servomotor 6 is cut off, servomotor 6 is controlled by cartridge valve C3, cartridge valve D4, pressure oil flows out the shutdown chamber that enters servomotor 6 by cartridge valve C3 from solenoid directional control valve 5, the piston that promotes servomotor 6 moves, and the oil in the servomotor 6 start chambeies enters oil return circuit by cartridge valve D4.Cartridge valve D4 has stroke adjustment, by regulating the flow of oil return, control water wheels compressor emergency shutdown speed.When guaranteeing that high oil pressure speed regulator lost efficacy, the reliable shutdown of water wheels unit.
But but also manually-operable of solenoid directional control valve distant place electrical control.Four cartridge valves and solenoid directional control valve all can be installed in the speed regulator rack, and the series parallel connection of oil circuit realizes that no exposed conduit is arranged simple, easy to operate in the corresponding integrated package in speed regulator.
Claims (2)
1. water turbine accidental shutdown device based on cartridge valve; it is characterized in that; comprise the cartridge valve A (1) on the identical oil circuit that is connected on high oil pressure speed regulator selector valve (7) and servomotor (6) of latus rectum; cartridge valve B (2) and the cartridge valve C (3) that is connected in servomotor (6) start chamber and shutdown chamber in parallel; cartridge valve D (4); also comprise solenoid directional control valve (5); described cartridge valve A (1) is connected on the oil circuit that connects high oil pressure speed regulator selector valve (7) and servomotor (6) start chamber; described cartridge valve B (2) is connected on the oil circuit that connects high oil pressure selector valve (7) and servomotor (6) shutdown chamber; cartridge valve A (1); cartridge valve B (2) guiding oil circuit is connected with a port of solenoid directional control valve (5); described cartridge valve C (3) is connected on servomotor (6) shutdown chamber and the high-pressure oil passage; described cartridge valve D (4) is connected on servomotor (6) start chamber and the oil return circuit, cartridge valve C (3); cartridge valve D (4) guiding oil circuit is connected with another port of solenoid directional control valve (5).
2. the water turbine accidental shutdown device based on cartridge valve according to claim 1 is characterized in that described cartridge valve D (4) has stroke adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200280623U CN201155420Y (en) | 2008-01-08 | 2008-01-08 | Hydroturbine emergency stop device based on cartridge valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200280623U CN201155420Y (en) | 2008-01-08 | 2008-01-08 | Hydroturbine emergency stop device based on cartridge valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201155420Y true CN201155420Y (en) | 2008-11-26 |
Family
ID=40103204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200280623U Expired - Fee Related CN201155420Y (en) | 2008-01-08 | 2008-01-08 | Hydroturbine emergency stop device based on cartridge valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201155420Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094864A (en) * | 2011-03-23 | 2011-06-15 | 李新桥 | Hydraulic valve for pile pressing control for pile pressing machine |
| CN106401858A (en) * | 2016-12-20 | 2017-02-15 | 国家电网公司 | Control mechanism for preventing automatic exit of working seal of water inlet ball valve of generator set and use method of control mechanism |
| CN109139350A (en) * | 2018-09-29 | 2019-01-04 | 东方电机控制设备有限公司 | A kind of overspeed protection and volume control device for hydroenergy storage station |
| CN109236554A (en) * | 2018-09-17 | 2019-01-18 | 国家电网有限公司 | Guide vane closes system and its control method when pump-storage generator failure |
-
2008
- 2008-01-08 CN CNU2008200280623U patent/CN201155420Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094864A (en) * | 2011-03-23 | 2011-06-15 | 李新桥 | Hydraulic valve for pile pressing control for pile pressing machine |
| CN106401858A (en) * | 2016-12-20 | 2017-02-15 | 国家电网公司 | Control mechanism for preventing automatic exit of working seal of water inlet ball valve of generator set and use method of control mechanism |
| CN109236554A (en) * | 2018-09-17 | 2019-01-18 | 国家电网有限公司 | Guide vane closes system and its control method when pump-storage generator failure |
| CN109139350A (en) * | 2018-09-29 | 2019-01-04 | 东方电机控制设备有限公司 | A kind of overspeed protection and volume control device for hydroenergy storage station |
| CN109139350B (en) * | 2018-09-29 | 2024-01-26 | 东方电气自动控制工程有限公司 | Overspeed protection and flow control device for pumped storage power station |
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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: 20081126 Termination date: 20120108 |