CN100557231C - Electrohydraulic synchronous cylinder type valve servo synchronous control system - Google Patents
Electrohydraulic synchronous cylinder type valve servo synchronous control system Download PDFInfo
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- CN100557231C CN100557231C CNB200810053020XA CN200810053020A CN100557231C CN 100557231 C CN100557231 C CN 100557231C CN B200810053020X A CNB200810053020X A CN B200810053020XA CN 200810053020 A CN200810053020 A CN 200810053020A CN 100557231 C CN100557231 C CN 100557231C
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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
A kind of electrohydraulic synchronous cylinder type valve servo synchronous control system, there is mechanic over speed protection device to link to each other with the two-position three way hydrovalve, end after two-position three way hydrovalve and the gate valve parallel connection is connected oil gear, and the other end connects an end points of one or more tube valve servo structure; Described oil return apparatus, oil feed pump group, two-position three way magnetic valve, oil gear, hydraulic synchronous motor group link to each other successively, and the hydraulic synchronous motor group also links to each other with two-position three way magnetic valve, wherein, oil return apparatus also links to each other with an end points of one or more tube valve servo structure, and an end points of the also corresponding and one or more tube valve servo of hydraulic synchronous motor group structure links to each other.Described hydraulic synchronous motor group is made up of the one or more hydraulic synchronous motor identical with tube valve servo structure.General structure of the present invention is simple, is convenient to maintenance and maintenance; Can guarantee the safe and stable operation of system, be deeply in love at low oil pressure, power supply dead electricity etc. still can proper functioning under the condition more.
Description
Technical field
The invention belongs to a kind of hydraulic turbine drum valve servo synchronous control system, particularly relate to and a kind ofly can control a plurality of servomotors simultaneously and realize synchronously, effectively guarantee its main fuel delivery unanimity, guarantee the electrohydraulic synchronous cylinder type valve servo synchronous control system of oil drain quantity unanimity.
Background technique
At present, existing tube valve synchronous control system mostly is the mechanical synchronization control system, he links together a plurality of servomotors by mechanical lever and screw mandrel, condition each other, its complicated in mechanical structure, installation and maintenance are very inconvenient, electric assisted control system is also arranged, but because its stability is come the synchronous of application cylinder valve servo always not by approval (water power plant control system particularly inlet valve control system needs very high stability and fault-tolerant ability) so never have a kind of suitable very suitable control system.
Summary of the invention
The present invention can control a plurality of servomotors realizations synchronously simultaneously for the technical problem that exists in the solution known technology provides a kind of, effectively guarantees its main fuel delivery unanimity, guarantees the electrohydraulic synchronous cylinder type valve servo synchronous control system of oil drain quantity unanimity.
The technological scheme that the present invention takes for the technical problem that exists in the solution known technology is: a kind of electrohydraulic synchronous cylinder type valve servo synchronous control system, include: mechanic over speed protection device, two-position three way hydrovalve and gate valve,: also be provided with oil return apparatus, the oil feed pump group, two-position three way magnetic valve, oil gear, the hydraulic synchronous motor group, and one or more tube valve servo structure, described mechanic over speed protection device links to each other with the two-position three way hydrovalve, end after two-position three way hydrovalve and the gate valve parallel connection is connected oil gear, and the other end connects first end points of one or more tube valve servo structure; Described oil return apparatus, oil feed pump group, two-position three way magnetic valve, oil gear, hydraulic synchronous motor group link to each other successively, and the hydraulic synchronous motor group also links to each other with two-position three way magnetic valve, wherein, oil return apparatus also links to each other with the 3rd end points of one or more tube valve servo structure, and second end points of the also corresponding and one or more tube valve servo of hydraulic synchronous motor group structure links to each other.
Described hydraulic synchronous motor group is by forming with the corresponding identical one or more hydraulic synchronous motor of number that is provided with of tube valve servo structure.
Described tube valve servo structure includes: the tube valve servo, the selector valve group that links to each other with the tube valve servo, and be connected reset valve group between a valve servo and the selector valve group, described reset valve group also is connected with solenoid directional control valve, wherein, be formed with two filler opening connection end points on the described selector valve group, one of them is the 3rd end points that links to each other with oil return apparatus, another is corresponding second end points that links to each other with hydraulic synchronous motor in the hydraulic synchronous motor group, also be formed with on the described selector valve group with parallel connection after two-position three way hydrovalve and first end points that links to each other of an end of gate valve.
Electrohydraulic synchronous cylinder type valve servo synchronous control system of the present invention, the advantage and the good effect that have are:
1, this system has the integration of height, and a lot of valves and valve group all adopt integrated mode to handle, and general structure is simple, is convenient to maintenance and maintenance.
2, this system adopts electric and Hydraulic Synchronizing simultaneously, can guarantee the safe and stable operation of system.
3, this system design has perfect protective system, and guarantee to be deeply in love under the condition still at low oil pressure, power supply dead electricity etc. can proper functioning more, protection power station electromechanical equipment.
4, this system can adjust a motion speed of valve servo piston, and can segmentation regulate the speed, thereby has satisfied the various valve body motion speed requirement in the control of tube valve.
5, this system design has a large amount of watch-dogs to be used to monitor working state, easy access and the maintenance of each element.
Description of drawings
Fig. 1 is an overall structure schematic representation of the present invention.
Label among the figure is respectively:
1-tube valve servo structure; The 2-mechanic over speed protection device; 3-two-position three way hydrovalve; The 4-gate valve; 5-hydraulic synchronous motor group; 6-oil return apparatus (hydraulic power unit); 7-oil feed pump group; The 8-two-position three way magnetic valve; The 9-oil gear; 11-tube valve servo; 12-reset valve group; The 13-solenoid directional control valve; 14-selector valve group.
Embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. to describe electrohydraulic synchronous cylinder type valve servo synchronous control system of the present invention in detail as follows:
As shown in Figure 1, electrohydraulic synchronous cylinder type valve servo synchronous control system of the present invention, include: mechanic over speed protection device 2, two-position three way hydrovalve 3 and gate valve 4, oil return apparatus (hydraulic power unit) 6, oil feed pump group 7, two-position three way magnetic valve 8, oil gear 9, hydraulic synchronous motor group 5, and one or more tube valve servo structure, described mechanic over speed protection device 2 links to each other with two-position three way hydrovalve 3, end after two-position three way hydrovalve 3 and gate valve 4 parallel connections is connected oil gear 9, and the other end connects the first end points a of one or more tube valve servo structure; Described oil return apparatus 6, oil feed pump group 7, two-position three way magnetic valve 8, oil gear 9, hydraulic synchronous motor group 5 link to each other successively, and hydraulic synchronous motor group 5 also links to each other with two-position three way magnetic valve 8, wherein, oil return apparatus 6 also links to each other with the 3rd end points c of one or more tube valve servo structure, and the second end points b of the also corresponding and one or more tube valve servo of hydraulic synchronous motor group 5 structure links to each other.
Described hydraulic synchronous motor group 5 is by forming with the corresponding identical one or more hydraulic synchronous motor of number that is provided with of tube valve servo structure.
Described tube valve servo structure includes: tube valve servo 11, the selector valve group 14 that links to each other with tube valve servo 11, and be connected reset valve group 12 between a valve servo 11 and the selector valve group 14, described reset valve group 12 also is connected with solenoid directional control valve 13, wherein, be formed with two filler opening connection end points on the described selector valve group 14, one of them is the 3rd end points c that links to each other with oil return apparatus 6, another is the corresponding second end points b that links to each other with hydraulic synchronous motor in the hydraulic synchronous motor group 5, also be formed with on the described selector valve group 14 with parallel connection after two-position three way hydrovalve 3 and the first end points a that links to each other of an end of gate valve 4.
Tube valve servo of the present invention is connected with the selector valve group by hydraulic hose, its inflow-rate of water turbine of selector valve group can be adjusted constantly, thereby guarantee that tube valve servo piston can be with different speed operations, design has the reset valve group on tube valve servo cavity of resorption oil pipe line, be used for application cylinder valve servo cavity of resorption and pass in and out oily flow, the selector valve group is connected with the hydraulic synchronous motor that can control fuel supply flow rate and oil return apparatus respectively, the oil mass of selector valve group that hydraulic synchronous motor guarantees to offer each valve servo is equal substantially, design has oil feed pump group and two-position three way magnetic valve in oil return apparatus the place ahead, guarantee the oil feed pump group to hydraulic pressure syncmotor or oil gear fuel feeding, thus the normal operation of the system of assurance.
Working procedure of the present invention is: after native system is received open command, oil return apparatus 6 by oil feed pump group 7 to oil hydraulic motor group 5 fuel feeding, after the preliminary shunting of oil by oil hydraulic motor group 5, average mark is given the selector valve group 14 of each valve servo 11 correspondence, give the tube valve servo 11 cavity of resorptions by selector valve group 14 fuel feeding then, the oil return of tube valve servo 11 epicoeles (closing the chamber) is also got back to oil return apparatus 6 by selector valve group 14 then, in above-mentioned working procedure, if find that many tube valve servos 11 are asynchronous, then reset valve group 12 actions, continuation strengthens fuel delivery to the minimum tube valve servo 11 in position, thereby guarantees synchronously.When tube valve servo 11 is closed, oil return apparatus 6 by oil feed pump group 7 to oil hydraulic motor group 5 fuel feeding, after the preliminary shunting of oil by oil hydraulic motor group 5, average mark is given the selector valve group 14 of each valve servo 11 correspondence, gives the tube valve servo 11 epicoeles by selector valve group 14 fuel feeding then, in this working procedure, if find that many tube valve servos 11 are asynchronous, then reset valve group 12 actions strengthen the draining flow of the tube valve servo 11 of extreme higher position, thereby guarantee synchronously.
When power supply disappears, selector valve group 14 and reset valve group 12 all are in closed condition, guarantee that tube valve servo 11 is positioned at the working state before power supply disappears, an assurance tube valve servo 11 is in closes or full-gear, at this moment can open selector valve group 14 by manual operation gate valve 4, make selector valve group 14 be in the state of closing a valve servo 11, thereby utilize the oil of oil gear 9 the insides to close a valve servo 11, reset valve group 12 is not worked at this moment.If the speed control system accident causes generating unit speed to rise when power supply disappears; then mechanic over speed protection device 2 actions; open selector valve group 14; make selector valve group 14 be in the state of closing a valve servo 11; thereby utilize the oil of oil gear 9 the insides to close a valve servo 11, reset valve group 12 is not worked at this moment.
Claims (3)
1. electrohydraulic synchronous cylinder type valve servo synchronous control system, include: mechanic over speed protection device (2), two-position three way hydrovalve (3) and gate valve (4), it is characterized in that: also be provided with oil return apparatus (6), oil feed pump group (7), two-position three way magnetic valve (8), oil gear (9), hydraulic synchronous motor group (5), and one or more tube valve servo structure (1), described mechanic over speed protection device (2) links to each other with two-position three way hydrovalve (3), end after two-position three way hydrovalve (3) and gate valve (4) parallel connection is connected oil gear (9), and the other end connects first end points (a) of one or more tube valve servo structure; Described oil return apparatus (6), oil feed pump group (7), two-position three way magnetic valve (8), oil gear (9), hydraulic synchronous motor group (5) link to each other successively, and hydraulic synchronous motor group (5) also links to each other with two-position three way magnetic valve (8), wherein, oil return apparatus (6) also links to each other with the 3rd end points (c) of one or more tube valve servo structure, and second end points (b) of the also corresponding and one or more tube valve servo of hydraulic synchronous motor group (5) structure links to each other.
2. electrohydraulic synchronous cylinder type valve servo synchronous control system according to claim 1 is characterized in that: described hydraulic synchronous motor group (5) is by forming with the corresponding identical one or more hydraulic synchronous motor of number that is provided with of tube valve servo structure.
3. electrohydraulic synchronous cylinder type valve servo synchronous control system according to claim 1, it is characterized in that: described tube valve servo structure includes: tube valve servo (11), the selector valve group (14) that links to each other with tube valve servo (11), and be connected reset valve group (12) between a valve servo (11) and the selector valve group (14), described reset valve group (12) also is connected with solenoid directional control valve (13), wherein, be formed with two filler opening connection end points on the described selector valve group (14), one of them is the 3rd end points (c) that links to each other with oil return apparatus (6), another is corresponding second end points (b) that links to each other with hydraulic synchronous motor in the hydraulic synchronous motor group (5), also be formed with on the described selector valve group (14) with parallel connection after two-position three way hydrovalve (3) and first end points (a) that links to each other of an end of gate valve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200810053020XA CN100557231C (en) | 2008-05-07 | 2008-05-07 | Electrohydraulic synchronous cylinder type valve servo synchronous control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200810053020XA CN100557231C (en) | 2008-05-07 | 2008-05-07 | Electrohydraulic synchronous cylinder type valve servo synchronous control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101265871A CN101265871A (en) | 2008-09-17 |
| CN100557231C true CN100557231C (en) | 2009-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB200810053020XA Expired - Fee Related CN100557231C (en) | 2008-05-07 | 2008-05-07 | Electrohydraulic synchronous cylinder type valve servo synchronous control system |
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| CN (1) | CN100557231C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650259B (en) * | 2012-04-25 | 2014-06-04 | 中国水电顾问集团西北勘测设计研究院 | Joint control device and method for low waterhead Kaplan turbine |
| CN102650257B (en) * | 2012-04-25 | 2014-06-04 | 中国水电顾问集团西北勘测设计研究院 | Double-control device and method for low waterhead Kaplan turbine |
| CN102650258B (en) * | 2012-04-25 | 2014-06-04 | 中国水电顾问集团西北勘测设计研究院 | Low head Kaplan type turbine on-cam device and method |
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2008
- 2008-05-07 CN CNB200810053020XA patent/CN100557231C/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| 两种筒阀同步装置在漫湾水电站的应用. 郑丕宗，李定利，杨永忠.水电站机电技术，第31卷第2期. 2008 * |
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| CN101265871A (en) | 2008-09-17 |
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