CN201372881Y - Double-servo proportional valve redundancy electro-hydraulic follow up device - Google Patents
Double-servo proportional valve redundancy electro-hydraulic follow up device Download PDFInfo
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- CN201372881Y CN201372881Y CN200920079099U CN200920079099U CN201372881Y CN 201372881 Y CN201372881 Y CN 201372881Y CN 200920079099 U CN200920079099 U CN 200920079099U CN 200920079099 U CN200920079099 U CN 200920079099U CN 201372881 Y CN201372881 Y CN 201372881Y
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model provides a double-servo proportional valve redundancy electro-hydraulic follow up device. A main valve is connected with a hydraulic turbine servomotor and then connected with a hydraulic control system; the functional components of the hydraulic control system are mutually fixed and integrate into an integrated valve group module. The device adopts a hydraulic integration technology and a flow control and flow feedback technology, chooses a servo proportional valve with high precision and high reliability as an electro-hydraulic switching element; in addition, a double-servo proportional valve redundancy technique is adopted and the whole device is designed into structural modules, i.e. an integrated valve module, the main valve, oil treatment module and the like; the more important thing is that all control oil ways in the system are integrated on a mother board and a valve block, with no external exposed conduit of oil ways, thereby reducing leakage, enhancing safety and reliability and being a hydraulic turbine governor electro-hydraulic follow up device with quite high cost performance.
Description
Technical field
The utility model relates to a kind of electro-hydraulic servo device of regulating the water turbine servomotor, particularly a kind of double servo proportion redundant electrohydraulic followup device that is applied in the large-scale water turbine microcomputer governing system.
Background technique
The electro-hydraulic servo device is the part of whole speed control system, is signal conversion and the control gear that is connected on the water turbine main servomotor, is the pith that ensures the normal operation of whole machine set system.In recent years, the water turbine control system has obtained significant progress, and structure, performance have reached higher standard, and the kind of electro-hydraulic servo device also mainly contains several types such as machinery control, electricity/machine conversion and control or HYDRAULIC CONTROL SYSTEM.The utility model provides a kind of better quality, function more complete, adopts the electro-hydraulic servo device of hydraulic pressure automatic control mode.
At present, external electro-hydraulic servo device is then gone up the control of servomotor and is adopted automated manner fully, has cancelled mechanical manual function, and adopts electric hand moving, and the electro-hydraulic servo device complete machine structure of this pattern is simple.Still need to operate by servovalve but electric hand is moving, when servovalve was malfunctioning, automatic and electric hand is moving will to lose effectiveness simultaneously.Electric hand is moving to be to rely on offshore company's product manufacturing and quality level to a great extent, especially on-the-spot working service level is high for relying on, this constructed products, price is not low, still do not meet at present the use habit that China's present " national conditions " and domestic user form for a long time, do not meet the regulation of the NBS of China yet.
Domestic electro-hydraulic servo device mainly is that the control of servomotor is adopted automatically and the mechanism hand flowing mode, generally is used as controlling the manually mechanical of servomotor by stroke limiter, and it is not influenced by servovalve, has a SOS of one's own.But the electro-hydraulic servo device complete machine structure complexity of this pattern, it is many to transmit lever, and owing to connect the inevitable gap that produces by pin or bearing between lever, causes control accuracy not high, and the dead band is big, the debugging trouble.In addition, also manually do not follow the tracks of automatic function, can't cut effectively when malfunctioning to manually automatic, and can't keep servomotor, operate immediately in current location.
This electro-hydraulic servo device is when detecting automatic fault, the general manual mode of machinery that adopts is operated, promptly control actuating motor operation stroke limiter and control main control valve, this moment, servomotor may be positioned at the neutral position, therefore stroke limiter needs certain hour, just might cause servomotor to leave, cause the problem that unit is overrun.In the unit adjustment process, as the unit removal of load, generating unit speed rises, need the quick closedown servomotor, and meet malfunctioningly automatically, but generating unit speed still can fast rise, treat that stroke limiter arrives manual operative position, incur loss through delay tens seconds, operate again and close servomotor, the expansion of effectively control accident.
For example open day be that on 01 30th, 2007, the patent No. are that ZL200620094912.0, name are called the Chinese patent of " hydraulic control main distributing valve multi-functional operation mechanism ", just also have certain shortcoming, complex structure, function is also abundant inadequately.In addition, the oil circuit between this organization hydraulic pressure element connects by copper pipe or steel pipe, and the inaesthetic simultaneous faults rate of outward appearance is higher, also exists the pipeline joints such as causing joint of trembling in service that leakage problems takes place easily.And this operating device also needs to become separately cabinet, and the seepage oil require is taken in addition and guided to fuel tank, can not satisfy the requirement of power station civilization, cleaning operation.
In order to simplify the complete machine structure of existing electro-hydraulic servo device, keep manually control function simultaneously, improve the safety reliability of system, improve control accuracy, the spy has developed double servo proportion redundant electrohydraulic followup device.Relative this patent of the utility model possesses more enriches full functionality, not only more simplify the structure, and workmanship is also more reliable and more stable, possesses higher control accuracy.
Summary of the invention
The utility model is intended to overcome above-mentioned technological deficiency, particularly at present electro-hydraulic servo apparatus structure complicated problems, provides a kind of hydrogovernor electro-hydraulic servo device.The utility model adopts hydraulic pressure integrated technology and flow control and flow feedback technique, select highi degree of accuracy for use, the servo proportion of high reliability is as electricity-liquid conversion element, and employing double servo proportion redundancy, with whole device simplified design is integrated valve block, main control valve, a few macrostructure modules such as oil processing module, the more important thing is, the control oil channel of the utility model internal system all is integrated on base plate and the valve piece, there is not outside oil circuit exposed conduit, it is also more safe and reliable to have reduced seepage, is the very high hydrogovernor electro-hydraulic servo device of a kind of cost performance.
The utility model is achieved through the following technical solutions:
Double servo proportion redundant electrohydraulic followup device, the water turbine servomotor connects main control valve, main control valve is connected with hydraulic control system through oil circuit, hydraulic control system comprises hand/automatic switchover solenoid valve, servo proportion, Proportional valve switching solenoid valve and pilot operated directional control valve, it is characterized in that: described hydraulic control system also comprises flow feedback valve, manually-operable solenoid valve and on-off valve; The functional part of described hydraulic control system all concentrate to be provided with, interfix integrated as a whole be the integrated valve pack module; Described integrated valve pack module is connected with the oil purifier module; Described main control valve, integrated valve pack module and oil purifier module are fixedly set on the base plate, and described base plate is fixed on the fuel tank panel of oil gear; Described base plate interior is provided with the oil circuit hidden pipe, and described main control valve, integrated valve pack module or oil purifier module interconnect through the oil circuit hidden pipe.
Described main control valve is fixedly set in the base plate center, and hangs in the oil sump tank of oil gear; Described integrated valve pack module and oil purifier module are fixedly set in respectively on the base plate both sides, and are that the center is symmetrical arranged with the main control valve.So that the base plate overall weight is evenly distributed.
Described servo proportion is two, and is parallel with one another through oil circuit; Two servo proportions are worked simultaneously, and corresponding with a station of switching solenoid valve respectively, and following two servo proportions of nominal situation are all in proper functioning; When switching solenoid valve worked in position b, the servo proportion on the left side worked, and when switching solenoid valve worked in position a, the servo proportion on the right worked; When one of them servo proportion broke down, the switching solenoid valve action allowed the servo proportion that does not break down work, and changed the servo proportion that breaks down simultaneously, can guarantee that like this electro-hydraulic servo device is in the auto state operation for more time.
Described main control valve is connected with the emergency shutdown solenoid valve.
Described integrated valve pack module is connected with oil gear through oil circuit.
The hydraulic fluid port joint of described oil circuit hidden pipe is provided with the O RunddichtringO.
The utility model realizes that the working principle of control is automatically: when electro-hydraulic servo speed regulator input was moved automatically, the microcomputer regulator cubicle was exported corresponding current signal to servo proportion according to the unit operation operating mode.Servo proportion converts current signal to flux signal output, and the flow of servo proportion stream output enters the auxiliary receiver control chamber, control auxiliary receiver piston action.Because of auxiliary receiver piston and main control valve piston are connected as a whole, thus also driven the main control valve piston action auxiliary receiver piston action time, output flow operation servomotor, control stator switch reaches the purpose of regulating unit operation.Simultaneously, the main control valve position of piston feeds back to the amplification plate of servo proportion by displacement transducer, forms a little closed loop; In addition, the servomotor position feeds back to the comprehensive amplifying return circuit of microcomputer regulator cubicle through displacement transducer, forms another closed loop, when servomotor reaches the precalculated position, makes servo proportion, main control valve piston get back to the equilibrium position.
The utility model is realized the manually working principle of control: out of service or people is when switching to the manual method of operation of machinery when the microcomputer regulator cubicle, hand/automatic switchover solenoid valve is in manual running position, pressure oil goes the oil circuit of servo proportion cut, and it is simultaneously cut to be connected to the oil circuit of auxiliary receiver control chamber by servo proportion, and servo proportion is no longer to the control generation effect of system.To the control of unit will be fully by operation aperture control valve achieve a butt joint power device aperture increase or reduce, finish control to unit servomotor position.And this manually-operable also can realize distant place control.When manually controlling, the action of aperture control valve, the control chamber pressure of control auxiliary receiver raises or descends, and makes the auxiliary receiver piston action and drive main valve piston to move; After aperture control valve action finished, the effect by the flow feedback allowed the control chamber pressure of auxiliary receiver get back to equilibrium value, under the oil pressure effect, makes the auxiliary receiver piston get back to the equilibrium position, and drove main valve piston and get back to the equilibrium position, finished manual control.Owing to should therefore, when inoperation, can in a period of time, keep the servomotor position manually for open loop control, and make the user have time enough to deal with the work.
Advantage of the present utility model is:
1, the utility model has been simplified the complete machine structure of existing domestic electro-hydraulic servo device, and complete machine structure is succinctly novel, and Installation and Debugging, operation, maintenance are convenient, and such no exposed conduit structure, belong to the home and abroad initiative, possess very high application value; The utility model is designed to whole device a few macrostructure modules such as integrated valve group, main control valve, oil processing module, adopt the hydraulic pressure integrated technology simultaneously, oil circuit between each functional part connection in the device all is integrated in valve group and the base plate, realized the individual layer layout of each functional part by base plate, simplified complete machine structure greatly, and cancelled the oil outer pipeline, reduced seepage; In addition, this device whole machine installation is on the fuel tank panel, and main control valve is suspended in the oil sump tank, and the oil return and the part seepage oil of main control valve oil return, control oil are directly got back in the oil sump tank, have reduced pipeline length, and can not influence surrounding environment; Succinct complete machine structure also has automatically and the manual control function of machinery, has not only improved the reliability of system, and brings easy in installation, debugging, operation, the maintenance, has alleviated user's workload.
2, all hydraulic fluid port joints of the present utility model all adopt the O RunddichtringO to carry out the ne-leakage sealing, have satisfied the requirement that power station civilization, cleaning are moved.
3, the utility model has adopted flow control technique, makes moving element realize no gap transmitting movement, has greatly reduced the motion dead band, has improved control accuracy; The utility model has also adopted the flow feedback technique, does not so just need to come transmitting movement with lever, when no lever construction has guaranteed precision, has simplified structure, has reduced the occurrence probability of fault.
4, the utility model possesses outstanding intelligent control function; If microcomputer regulator cubicle fault or electro-hydraulic converting element fault cause the electro-hydraulic servo speed regulator to withdraw from automatic operation, native system can be accepted trouble signal and moment switches to manual running state; Native system has does not shut down the function that just can carry out troubleshooting effort, and can pass through the manual or distant place manual mode of operation servomotor of terrain immediately, reduces unnecessary shutdown, brings good social benefit for the power station, has also increased the economic benefit in power station; The utility model has also kept mechanical manual control function, has improved the reliability and the control accuracy of electro-hydraulic servo device.
5, native system adopts the double servo proportion redundancy, has improved the safety reliability of system; If break down at automatic one of them servo proportion in service, system can automatically switch to another servo proportion state that works, the automatic operation period of having improved existing electro-hydraulic servo device; When two servo proportions were worked simultaneously, corresponding with a station of switching solenoid valve respectively, following two servo proportions of nominal situation were all in proper functioning; When switching solenoid valve worked in position b, the servo proportion on the left side worked, and when switching solenoid valve worked in position a, the servo proportion on the right worked; When one of them servo proportion broke down, the switching solenoid valve action allowed the servo proportion that does not break down work, and changed the servo proportion that breaks down simultaneously, can guarantee that like this electro-hydraulic servo device is in the auto state operation for more time; Adopt the double servo proportion redundancy, cooperate the microcomputer regulator cubicle to use, can improve the automatic control operation period to stator, also improved the equipment uptime, make equipment operation more safe and reliable, real realization power station is unattended, the purpose of few man on duty, has improved the reliability of system significantly, has further ensured the Security of unit operation.
6, the utility model select highi degree of accuracy, high reliability for use servo proportion as electricity-liquid conversion element, and the switching valve of servo proportion adopts special spool form, makes handoff procedure more fast, safe, reliably, improved the safety reliability of system.
7, for improving the reliability of each hydraulic element in this device, process oil of the present utility model and control oil content are arranged.Process oil is introduced from oil gear by main control valve; And control oil becomes clean pressure oil after filtering through the oil purifier essence, introduces control system again, uses for each hydraulic element in the system.
8, native system can be used as company product by transformation to the old equipment in power station, or the supply of material is given newly to build a power station and is realized.
Mode below by embodiment combines with accompanying drawing is described in further detail foregoing of the present utility model again, but the following example should be interpreted as that the utility model only is confined to these specific embodiments in the scope of above-mentioned theme.Under the situation that does not break away from the above-mentioned technological thought of the utility model, various replacements or change according to ordinary skill knowledge and customary means are made all should be included in the scope of the present utility model.
Description of drawings:
Fig. 1 is the skeleton diagram of the utility model Automatic Control Theory.
Fig. 2 is the skeleton diagram of the manual control principle of the utility model.
Fig. 3 is the schematic diagram of the utility model electro-hydraulic servo device.
Fig. 4 is a cross-sectional view of the present utility model.
Fig. 5 is the structural representation of the utility model integrated valve group
The structural representation of Fig. 6 the utility model base plate.
Mark among the figure: 1 is servo proportion; 2 is main control valve; 3 is the flow feedback valve; 4 is the oil purifier module, and 5 is that hand/automatic switchover solenoid valve, 6 is that Proportional valve switching solenoid valve, 7 is that manually-operable solenoid valve, 8 is that emergency shutdown solenoid valve, 9 is that pilot operated directional control valve, 10 is that on-off valve, 11 is that base plate, 12 is that integrated valve group, 13 is that oil circuit hidden pipe, 14 is an oil gear.
Embodiment
Double servo proportion redundant electrohydraulic followup device, the water turbine servomotor connects main control valve 2, main control valve 2 is connected with hydraulic control system through oil circuit, hydraulic control system comprises hand/automatic switchover solenoid valve 5, servo proportion 1, Proportional valve switching solenoid valve 6 and pilot operated directional control valve 9, and through the oil circuit formation of contacting mutually, it is characterized in that: described hydraulic control system also comprises flow feedback valve 3, manually-operable solenoid valve 7 and on-off valve 10; Described flow feedback valve 3 is connected with servo proportion 1 through on-off valve 10 again; The another one active chamber of described hand/automatic switchover solenoid valve 5 through oil circuit be connected with another active chamber of pilot operated directional control valve 9 again after manually-operable solenoid valve 7 is connected; Each functional part of described hydraulic control system all concentrate to be provided with, interfix integrated as a whole be integrated valve pack module 12; Integrated valve pack module 12 is functional parts of realizing behind each hydraulic element assembly of hydraulic pressure logic, has simplified complete machine structure after integrated.The control of described hydraulic control system oil oil circuit is connected with the oil purifier system, and each functional part of described oil purifier system is concentrated setting, becomes as a whole oil purifier module 4.Described main control valve 2, integrated valve pack module 12 and oil purifier module 4 are fixedly set on the base plate 11; Described base plate 11 is fixed on the fuel tank panel of oil gear 14.Described base plate 11 inner concentrating are provided with some oil circuit hidden pipes 13, and described main control valve 2, integrated valve pack module 12 or oil purifier module 4 interconnect through each bar oil circuit hidden pipe 13.
Described main control valve 2 is fixedly set in base plate 11 centers, and hangs in the oil sump tank of oil gear 14; Described integrated valve pack module 12 and oil purifier module 4 are fixedly set in respectively on base plate 11 both sides, and are that the center is symmetrical arranged with main control valve 2.So that base plate 11 overall weight are evenly distributed.
Described servo proportion 1 is two, and is parallel with one another through oil circuit; Two servo proportions 1 are worked simultaneously, and corresponding with a station of switching solenoid valve 6 respectively, and following two servo proportions 1 of nominal situation are all in proper functioning; When switching solenoid valve 6 worked in position b, the servo proportion 1 on the left side worked, and when switching solenoid valve 6 worked in position a, the servo proportion 1 on the right worked; When one of them servo proportion 1 breaks down, switching solenoid valve 6 actions, allow the servo proportion 1 that does not break down work, change the servo proportion 1 that breaks down simultaneously, can guarantee that like this electro-hydraulic servo device is in the auto state operation for more time.
Described main control valve 2 is connected with emergency shutdown solenoid valve 8.
Described hydraulic control system is that the process oil oil-way system of integrated valve pack module 12 is connected with oil gear 14.
The hydraulic fluid port joint of described oil circuit hidden pipe 13 is provided with the O RunddichtringO.
The utility model adopts hydraulic pressure integrated technology and flow control and flow feedback technique, select highi degree of accuracy for use, the servo proportion of high reliability is as electricity-liquid conversion element, and employing double servo proportion redundancy, with whole device simplified design is integrated valve block, main control valve, a few macrostructure modules such as oil processing module, the more important thing is, the control oil channel of the utility model internal system all is integrated on base plate and the valve piece, there is not outside oil circuit exposed conduit, it is also more safe and reliable to have reduced seepage, is the very high hydrogovernor electro-hydraulic servo device of a kind of cost performance.
Basic functional principle of the present utility model is: in conjunction with the control main control valve, control water turbine servomotor ensures the proper functioning running of water turbine by hydraulic system and Control System of Microcomputer.The utility model realizes that the working principle of control is automatically: when electro-hydraulic servo speed regulator input was moved automatically, the microcomputer regulator cubicle was exported corresponding current signal to servo proportion according to the unit operation operating mode.Servo proportion converts current signal to flux signal output, and the flow of servo proportion stream output enters the auxiliary receiver control chamber, control auxiliary receiver piston action.Because of auxiliary receiver piston and main control valve piston are connected as a whole, thus also driven the main control valve piston action auxiliary receiver piston action time, output flow operation servomotor, control stator switch reaches the purpose of regulating unit operation.Simultaneously, the main control valve position of piston feeds back to the amplification plate of servo proportion by displacement transducer, forms a little closed loop; In addition, the servomotor position feeds back to the comprehensive amplifying return circuit of microcomputer regulator cubicle through displacement transducer, forms another closed loop, when servomotor reaches the precalculated position, makes servo proportion, main control valve piston get back to the equilibrium position.
The utility model is realized the manually working principle of control: out of service or people is when switching to the manual method of operation of machinery when the microcomputer regulator cubicle, hand/automatic switchover solenoid valve is in manual running position, pressure oil goes the oil circuit of servo proportion cut, and it is simultaneously cut to be connected to the oil circuit of auxiliary receiver control chamber by servo proportion, and servo proportion is no longer to the control generation effect of system.To the control of unit will be fully by operation aperture control valve achieve a butt joint power device aperture increase or reduce, finish control to unit servomotor position.And this manually-operable also can realize distant place control.When manually controlling, the action of aperture control valve, the control chamber pressure of control auxiliary receiver raises or descends, and makes the auxiliary receiver piston action and drive main valve piston to move; After aperture control valve action finished, the effect by the flow feedback allowed the control chamber pressure of auxiliary receiver get back to equilibrium value, under the oil pressure effect, makes the auxiliary receiver piston get back to the equilibrium position, and drove main valve piston and get back to the equilibrium position, finished manual control.Owing to should therefore, when inoperation, can in a period of time, keep the servomotor position manually for open loop control, and make the user have time enough to deal with the work.
Advantage of the present utility model is:
The utility model has been simplified the complete machine structure of existing domestic electro-hydraulic servo device, and complete machine structure is succinctly novel, and Installation and Debugging, operation, maintenance are convenient, and such no exposed conduit structure, belong to the home and abroad initiative, possess very high application value; The utility model is designed to whole device a few macrostructure modules such as integrated valve group, main control valve, oil processing module, adopt the hydraulic pressure integrated technology simultaneously, oil circuit between each functional part connection in the device all is integrated in valve group and the base plate, realized the individual layer layout of each functional part by base plate, simplified complete machine structure greatly, and cancelled the oil outer pipeline, reduced seepage; In addition, this device whole machine installation is on the fuel tank panel, and main control valve is suspended in the oil sump tank, and the oil return and the part seepage oil of main control valve oil return, control oil are directly got back in the oil sump tank, have reduced pipeline length, and can not influence surrounding environment; Succinct complete machine structure also has automatically and the manual control function of machinery, has not only improved the reliability of system, and brings easy in installation, debugging, operation, the maintenance, has alleviated user's workload.
All hydraulic fluid port joints of the present utility model all adopt the O RunddichtringO to carry out the ne-leakage sealing, have satisfied the requirement that power station civilization, cleaning are moved.
The utility model has adopted flow control technique, makes moving element realize no gap transmitting movement, has greatly reduced the motion dead band, has improved control accuracy; The utility model has also adopted the flow feedback technique, does not so just need to come transmitting movement with lever, when no lever construction has guaranteed precision, has simplified structure, has reduced the occurrence probability of fault.
The utility model possesses outstanding intelligent control function; If microcomputer regulator cubicle fault or electro-hydraulic converting element fault cause the electro-hydraulic servo speed regulator to withdraw from automatic operation, native system can be accepted trouble signal and moment switches to manual running state; Native system has does not shut down the function that just can carry out troubleshooting effort, and can pass through the manual or distant place manual mode of operation servomotor of terrain immediately, reduces unnecessary shutdown, brings good social benefit for the power station, has also increased the economic benefit in power station; The utility model has also kept mechanical manual control function, has improved the reliability and the control accuracy of electro-hydraulic servo device.
Native system adopts the double servo proportion redundancy, has improved the safety reliability of system; If break down at automatic one of them servo proportion in service, system can automatically switch to another servo proportion state that works, the automatic operation period of having improved existing electro-hydraulic servo device; When two servo proportions were worked simultaneously, corresponding with a station of switching solenoid valve respectively, following two servo proportions of nominal situation were all in proper functioning; When switching solenoid valve worked in position b, the servo proportion on the left side worked, and when switching solenoid valve worked in position a, the servo proportion on the right worked; When one of them servo proportion broke down, the switching solenoid valve action allowed the servo proportion that does not break down work, and changed the servo proportion that breaks down simultaneously, can guarantee that like this electro-hydraulic servo device is in the auto state operation for more time; Adopt the double servo proportion redundancy, cooperate the microcomputer regulator cubicle to use, can improve the automatic control operation period to stator, also improved the equipment uptime, make equipment operation more safe and reliable, real realization power station is unattended, the purpose of few man on duty, has improved the reliability of system significantly, has further ensured the Security of unit operation.
The utility model selects for use the servo proportion of highi degree of accuracy, high reliability as electricity-liquid conversion element, and the special spool form of the switching valve of servo proportion employing, makes handoff procedure more fast, safe, reliable, has improved the safety reliability of system.
For improving the reliability of each hydraulic element in this device, process oil of the present utility model and control oil content are arranged.Process oil is introduced from oil gear by main control valve; And control oil becomes clean pressure oil after filtering through the oil purifier essence, introduces control system again, uses for each hydraulic element in the system.
Native system can be used as the product of company by the transformation to the old equipment in power station, or the supply of material realizes to newly building a power station.
The utility model is not limited to above-mentioned mode of execution.
Claims (6)
1, double servo proportion redundant electrohydraulic followup device, the water turbine servomotor connects main control valve (2), main control valve (2) is connected with hydraulic control system through oil circuit, hydraulic control system comprises hand/automatic switchover solenoid valve (5), servo proportion (1), Proportional valve switching solenoid valve (6) and pilot operated directional control valve (9), it is characterized in that: described hydraulic control system also comprises flow feedback valve (3), manually-operable solenoid valve (7) and on-off valve (10); The functional part of described hydraulic control system concentrate to be provided with, interfix integrated as a whole be integrated valve pack module (12); Described integrated valve pack module (12) is connected with oil purifier module (4); Described main control valve (2), integrated valve pack module (12) and oil purifier module (4) are fixedly set on the base plate (11), and described base plate (11) is fixed on the fuel tank panel of oil gear (14); Described base plate (11) inside is provided with oil circuit hidden pipe (13), and described main control valve (2), integrated valve pack module (12) or oil purifier module (4) interconnect through oil circuit hidden pipe (13).
2, double servo proportion redundant electrohydraulic followup device according to claim 1 is characterized in that: described main control valve (2) is fixedly set in base plate (11) center, and hangs in the oil sump tank of oil gear (14); Described integrated valve pack module (12) and oil purifier module (4) are fixedly set in respectively on base plate (11) both sides, and are that the center is symmetrical arranged with main control valve (2).
3, double servo proportion redundant electrohydraulic followup device according to claim 2, it is characterized in that: described servo proportion (1) is two.
4, double servo proportion redundant electrohydraulic followup device according to claim 3 is characterized in that: described main control valve (2) is connected with emergency shutdown solenoid valve (8).
5, double servo proportion redundant electrohydraulic followup device according to claim 4 is characterized in that: described integrated valve pack module (12) is connected with oil gear (14) through oil circuit.
6, double servo proportion redundant electrohydraulic followup device according to claim 5, it is characterized in that: the hydraulic fluid port joint of described oil circuit hidden pipe (13) is provided with the O RunddichtringO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920079099U CN201372881Y (en) | 2009-02-18 | 2009-02-18 | Double-servo proportional valve redundancy electro-hydraulic follow up device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920079099U CN201372881Y (en) | 2009-02-18 | 2009-02-18 | Double-servo proportional valve redundancy electro-hydraulic follow up device |
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| CN201372881Y true CN201372881Y (en) | 2009-12-30 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705287A (en) * | 2012-06-07 | 2012-10-03 | 卢宇 | Integrated electro-hydraulic proportional hydraulic valve bank |
| CN112727819A (en) * | 2020-12-28 | 2021-04-30 | 浙江汽轮成套技术开发有限公司 | Novel servo redundant control system of steam turbine |
| KR20210153503A (en) * | 2020-06-10 | 2021-12-17 | 한국기계연구원 | Redundant system and method of hydraulic servo valve for safety control of turbine control actuator for power plants |
-
2009
- 2009-02-18 CN CN200920079099U patent/CN201372881Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705287A (en) * | 2012-06-07 | 2012-10-03 | 卢宇 | Integrated electro-hydraulic proportional hydraulic valve bank |
| CN102705287B (en) * | 2012-06-07 | 2014-12-17 | 卢宇 | Integrated electro-hydraulic proportional hydraulic valve bank |
| KR20210153503A (en) * | 2020-06-10 | 2021-12-17 | 한국기계연구원 | Redundant system and method of hydraulic servo valve for safety control of turbine control actuator for power plants |
| KR102458799B1 (en) * | 2020-06-10 | 2022-10-26 | 한국기계연구원 | Redundant system and method of hydraulic servo valve for safety control of turbine control actuator for power plants |
| CN112727819A (en) * | 2020-12-28 | 2021-04-30 | 浙江汽轮成套技术开发有限公司 | Novel servo redundant control system of steam turbine |
| CN112727819B (en) * | 2020-12-28 | 2023-02-03 | 浙江汽轮成套技术开发有限公司 | Servo redundant control system of steam turbine |
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Effective date of registration: 20181127 Address after: 618000 the Yellow River West Road, Deyang, Deyang, Sichuan Co-patentee after: Dongfang Electric Automatic Control Engineering Co., Ltd. Patentee after: Dongfang Electric Group Dongfang Motor Co., Ltd. Address before: 618000 the Yellow River West Road, Deyang, Deyang, Sichuan Co-patentee before: DFEM Control Equipment Co., Ltd. Patentee before: Dongfang Electric Group Dongfang Motor Co., Ltd. |
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Granted publication date: 20091230 |