CN201751565U - Redundant mechanical hydraulic control device of digital valve and proportional valve - Google Patents
Redundant mechanical hydraulic control device of digital valve and proportional valve Download PDFInfo
- Publication number
- CN201751565U CN201751565U CN201020193844XU CN201020193844U CN201751565U CN 201751565 U CN201751565 U CN 201751565U CN 201020193844X U CN201020193844X U CN 201020193844XU CN 201020193844 U CN201020193844 U CN 201020193844U CN 201751565 U CN201751565 U CN 201751565U
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- valve
- guide vane
- vane servomotor
- proportional
- solenoid
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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 provides a redundant mechanical hydraulic control device of a digital valve and a proportional valve, which comprises a fast control part of a guide vane servomotor and a slow control part of the guide vane servomotor, wherein the slow control part of the guide vane servomotor comprises a switching electromagnetic valve, a small-fluctuation electromagnetic valve, a filter, a proportional valve, a first stacked unidirectional valve, a second stacked unidirectional valve and a stacked throttling valve which are sequentially connected with each other by the means that the digital valve is connected with the proportional valve redundancy; and the input port of the switching electromagnetic valve is connected with one output port of an emergency stop electromagnetic valve, two output ports of the switching electromagnetic valve are respectively communicated with the input ports of the small-fluctuation electromagnetic valve and the proportional valve as well as a pressure relay, two output ports of the small-fluctuation electromagnetic valve are respectively connected with a switch chamber of the guide vane servomotor by two chambers of the second stacked unidirectional valve and the stacked throttling valve, the filter is arranged between the switching electromagnetic valve and the proportional valve, and two output ports of the proportional valve are respectively connected with the switch chamber of the guide vane servomotor by the two chambers of the first stacked unidirectional valve.
Description
Technical field
The utility model relates to a kind of digital valve and Proportional valve redundant mechanical hydraulic control device, is mainly used in the hydraulic generator unit.
Background technique
Because of now newly building a power station all is to build by the design concept of " unattended, few man on duty ", so the reliability and the regulation quality of speed regulator had higher requirement.Former speed regulator mechanical-hydraulic control gear can only be controlled guide vane servomotor at a slow speed with one the tunnel by quick control guide vane servomotor or a tunnel fast.Speed regulator mechanical-hydraulic control gear that can only the quick control guide vane servomotor can not better controlled hydraulic generator unit frequency, can not satisfy existing to the requirement of the quality of power supply and the design concept of " unattended, few man on duty ".One the tunnel fast and one the tunnel control at a slow speed guide vane servomotor speed regulator mechanical-hydraulic control gear control hydraulic generator unit frequency still can, but can not satisfy the design concept of existing " unattended, few man on duty ".Under the requirement of this high reliability and high regulation quality, design a kind of digital valve and Proportional valve redundant mechanical hydraulic control device is just imperative.
Summary of the invention
The purpose of this utility model is that the hydrovalve with various functions matches, and designs a kind of digital valve and Proportional valve redundant mechanical hydraulic control device, under various operating modes safety, control the frequency of generator set effectively, reliably.And digital valve and Proportional valve are standby each other, effectively improve the regulation quality and the utilization ratio of equipment.
The technical solution of the utility model: digital valve of the present utility model and Proportional valve redundant mechanical hydraulic control device comprise guide vane servomotor quick control part and guide vane servomotor control section at a slow speed, guide vane servomotor control section at a slow speed adopts the Placement of digital valve and Proportional valve redundancy, comprises switching solenoid valve, the minor swing solenoid valve of connection successively), filter, Proportional valve, first stacked unidirectional valve, second stacked unidirectional valve, overlapping throttle valve; The inlet opening of switching solenoid valve is connected with one road delivery outlet of emergency shutdown solenoid valve; two delivery outlets of switching solenoid valve are communicated with the inlet opening and the pressure relay of minor swing solenoid valve and Proportional valve respectively; two delivery outlets of minor swing solenoid valve link to each other with the switch cavity of guide vane servomotor through two chambeies of second stacked unidirectional valve and overlapping throttle valve respectively; between switching solenoid valve and the Proportional valve filter is installed, two delivery outlets of Proportional valve link to each other with the switch cavity of guide vane servomotor through two chambeies of first stacked unidirectional valve respectively.
The guide vane servomotor quick control partly comprises successively the hydraulicchange-over valve that connects, tightly stops hydraulic operated valve, solenoid directional control valve, emergency shutdown solenoid valve; Pressure oil is through one road delivery outlet of the emergency shutdown solenoid valve inlet opening to solenoid directional control valve; and another road delivery outlet is to the control chamber and the accident active chamber that tightly stop hydraulic operated valve; two delivery outlets of solenoid directional control valve are communicated with two control mouths of hydraulicchange-over valve; hydraulicchange-over valve tightly stops hydraulic operated valve and is installed between solenoid directional control valve and the hydraulicchange-over valve as adjusting the output element of guide vane servomotor snap switch speed.
Advantage of the present utility model: the utility model digital valve and Proportional valve redundant mechanical hydraulic system are to adopt the titer casting die of various functions to form; Fast and at a slow speed control oil channel adopts parallel way, does not disturb mutually.Function is more complete: have emergency stop function, snap switch function, digital valve at a slow speed switching function, Proportional valve fast at a slow speed switching function, be cut to Proportional valve work when when the Proportional valve fault, being cut to digital valve work or digital valve fault; and the signal output function is arranged, have unidirectional lock with each the series connection oil circuit carry out interlocking; do not disturb mutually; do the time spent when servomotor has external force, also can control servomotor effectively, accurately and position function.Simple in structure, be easy to install, adjust, safeguard, reduce the production and processing amount and the cycle reduces cost.Because what adopt is the titer casting die, volume reduces greatly, and Leckage is also minimum, can reduce the number of starts of oil gear oil pump, prolongs oil pump working life.
Description of drawings
Fig. 1 is a machinery hydraulic system schematic diagram of the present utility model.
Embodiment
The utility model is to adopt the control system of the titer casting die composition of various functions that the hydraulic generator unit is regulated under various operating modes.
The utility model comprises guide vane servomotor quick control part and guide vane servomotor control section at a slow speed.Guide vane servomotor control section at a slow speed adopts the Placement of digital valve and Proportional valve redundancy,
Fig. 1 is a machinery hydraulic system schematic diagram of the present utility model:
Digital valve of the present utility model and Proportional valve redundant mechanical hydraulic control device comprise guide vane servomotor quick control part and guide vane servomotor control section at a slow speed, its guide vane servomotor control section at a slow speed adopts the Placement of digital valve and Proportional valve redundancy, comprises switching solenoid valve 8, minor swing solenoid valve 7, filter 9, Proportional valve 10, first stacked unidirectional valve 11.1, second stacked unidirectional valve 11.2, the overlapping throttle valve 13 of connection successively; The inlet opening of switching solenoid valve 8 is connected with one road delivery outlet of emergency shutdown solenoid valve 5; two delivery outlets of switching solenoid valve 8 are communicated with the inlet opening and the pressure relay 12 of minor swing solenoid valve 7 and Proportional valve 10 respectively; two delivery outlets of minor swing solenoid valve 7 link to each other with the switch cavity of guide vane servomotor 1 through two chambeies of second stacked unidirectional valve 11.2 and overlapping throttle valve 13 respectively; between switching solenoid valve 8 and the Proportional valve 10 filter 9 is installed, two delivery outlets of Proportional valve 10 link to each other with the switch cavity of guide vane servomotor 1 through two chambeies of first stacked unidirectional valve 11.1 respectively.
Described guide vane servomotor quick control partly comprises successively the hydraulicchange-over valve 2 that connects, tightly stops hydraulic operated valve 3, solenoid directional control valve 4, emergency shutdown solenoid valve 5; Pressure oil is through one road delivery outlet of emergency shutdown solenoid valve 5 inlet opening to solenoid directional control valve 4; and another road delivery outlet is to the control chamber and the accident active chamber that tightly stop hydraulic operated valve 3; two delivery outlets of solenoid directional control valve 4 are communicated with two control mouths of hydraulicchange-over valve 2; hydraulicchange-over valve 2 tightly stops hydraulic operated valve 3 and is installed between solenoid directional control valve 4 and the hydraulicchange-over valve 2 as adjusting the output element of guide vane servomotor 1 snap switch speed.
Minor swing solenoid valve 7 and Proportional valve 10 can be realized the accurate location of guide vane servomotor 1, reach good regulating effect; Solenoid directional control valve 4 and hydraulicchange-over valve 2 can be realized the quick-action of guide vane servomotor 1, reach regulating effect real-time; Guide vane servomotor 1 is closed real-time when emergency shutdown solenoid valve 5 is realized emergencies, protection hydraulic generator unit is not damaged.
When guide vane servomotor 1 need be opened at a slow speed: Proportional valve 10 received microcomputer and opens signal slowly, Proportional valve 10 actions, pressure oil from the P5 mouth to the B8 mouth, enter beginning to speak of guide vane servomotor 1 through first stacked unidirectional valve 11.1, to oil sump tank, open at a slow speed to mobile realization to evolution by guide vane servomotor 1 through the A8 mouth of first stacked unidirectional valve 11.1, Proportional valve 10 and T5 mouth for chamber, the pass fluid of guide vane servomotor 1.
When guide vane servomotor 1 need close at a slow speed: Proportional valve 10 received microcomputer and closes signal slowly, Proportional valve 10 actions, pressure oil from the P5 mouth to the A8 mouth, enter the chamber, pass of guide vane servomotor 1 through first stacked unidirectional valve 11.1, to oil sump tank, guide vane servomotor 1 moves realization and closes at a slow speed to closing direction the fluid of beginning to speak of guide vane servomotor 1 through the B8 mouth of first stacked unidirectional valve 11.1, Proportional valve 10 and T5 mouth.
When Proportional valve 10 had the fault cisco unity malfunction: switching solenoid valve 8 received the microcomputer signalizing activities, pressure oil through the P3 of switching solenoid valve 8 mouth and A6 mouth to the P4 mouth of minor swing solenoid valve 7 and the P6 mouth of pressure relay 12.At this moment minor swing solenoid valve 7 main usefulness, Proportional valve 10 is standby, and pressure relay 12 sends Proportional valve 10 trouble signals simultaneously.
When the 7 main times spent of minor swing solenoid valve:
When guide vane servomotor 1 need be opened at a slow speed: minor swing solenoid valve 7 received microcomputer and opens signal slowly, 7 actions of minor swing solenoid valve, pressure oil from the P4 mouth to the B7 mouth, enter beginning to speak of guide vane servomotor 1 through second stacked unidirectional valve 11.2, overlapping throttle valve 13, to oil sump tank, open at a slow speed to mobile realization to evolution by guide vane servomotor 1 through the A7 mouth of overlapping throttle valve 13, second stacked unidirectional valve 11.2, minor swing solenoid valve 7 and T4 mouth for chamber, the pass fluid of guide vane servomotor 1.
When guide vane servomotor 1 need close at a slow speed: minor swing solenoid valve 7 received microcomputer and closes signal slowly, 7 actions of minor swing solenoid valve, pressure oil from the P4 mouth to the A7 mouth, enter the chamber, pass of guide vane servomotor 1 through second stacked unidirectional valve 11.2, overlapping throttle valve 13, to oil sump tank, guide vane servomotor 1 moves realization and closes at a slow speed to closing direction the fluid of beginning to speak of guide vane servomotor 1 through the B7 mouth of overlapping throttle valve 13, second stacked unidirectional valve 11.2, minor swing solenoid valve 7 and T4 mouth.
When guide vane servomotor 1 need be opened fast: solenoid directional control valve 4 received microcomputer and opens signal soon, solenoid directional control valve 4 actions, pilot pressure oil from the P1 mouth to the A1 mouth, enter the control chamber A3 mouth of hydraulicchange-over valve 2 then, promote hydraulicchange-over valve 2 commutations, pressure oil enters beginning to speak of guide vane servomotor 1 through the P2 of hydraulicchange-over valve 2 mouth and A2 mouth, and to oil sump tank, open fast to mobile realization to evolution by guide vane servomotor 1 through the B2 of hydraulicchange-over valve 2 mouth and T2 mouth for chamber, the pass fluid of guide vane servomotor 1.
When guide vane servomotor 1 needed to close fast: solenoid directional control valve 4 received microcomputer quick closing valve signal, solenoid directional control valve 4 actions, pilot pressure oil from the P1 mouth to the B1 mouth, enter the control chamber B3 mouth of hydraulicchange-over valve 2 then, promote hydraulicchange-over valve 2 commutations, pressure oil enters the chamber, pass of guide vane servomotor 1 through the P2 of hydraulicchange-over valve 2 mouth and B2 mouth, and to oil sump tank, guide vane servomotor 1 moves and realizes closing fast to closing direction the fluid of beginning to speak of guide vane servomotor 1 through the A2 of hydraulicchange-over valve 2 mouth and T2 mouth.
When emergency needed emergency shutdown: emergency shutdown solenoid valve 5 received the microcomputer emergency-stop signal; 5 actions of emergency shutdown solenoid valve; pilot pressure oil from the P mouth to the A mouth; enter the control chamber A4 and the accident active chamber A5 that tightly stop hydraulic operated valve 3; promote tightly to stop the control chamber B3 mouth that hydraulicchange-over valve 2 is introduced pilot pressure oil in hydraulic operated valve 3 commutations; promote hydraulicchange-over valve 2 commutations; pressure oil enters the chamber, pass of guide vane servomotor 1 through the P2 of hydraulicchange-over valve 2 mouth and B2 mouth; to oil sump tank, guide vane servomotor 1 moves the realization emergency shutdown to closing direction to the fluid of beginning to speak of guide vane servomotor 1 through the A2 of hydraulicchange-over valve 2 mouth and T2 mouth.
The utility model has emergency stop function, snap switch function, digital valve switching function, Proportional valve switching function at a slow speed fast at a slow speed; be cut to Proportional valve work when when the Proportional valve fault, being cut to digital valve work or digital valve fault; and the signal output function is arranged, have unidirectional lock that each series connection oil circuit is carried out interlocking, function such as do not disturb mutually.Do the time spent when servomotor has external force, also can control servomotor effectively, accurately and position function.
What solenoid valve of the present utility model adopted is solenoid directional control valve, can also adopt Solenoid ball valve, Proportional valve, proportional servo valve, servovalve etc.
Core of the present utility model is: guide vane servomotor quick control part and guide vane servomotor be control section at a slow speed, guide vane servomotor control section at a slow speed adopts the Placement of digital valve and Proportional valve redundancy, fast adopt parallel way, do not disturb mutually with control oil channel at a slow speed.Therefore no matter how concrete element is replaced, how variation, mounting point change; all employings are fast adopted parallel way with control oil channel at a slow speed, and guide vane servomotor control section at a slow speed adopts all genus protection domain of the present utility model of the Placement of digital valve and Proportional valve redundancy.
Claims (2)
1. digital valve and Proportional valve redundant mechanical hydraulic control device, comprise guide vane servomotor quick control part and guide vane servomotor control section at a slow speed, it is characterized in that: guide vane servomotor control section at a slow speed adopts the Placement of digital valve and Proportional valve redundancy, comprises switching solenoid valve (8), minor swing solenoid valve (7), filter (9), Proportional valve (10), first stacked unidirectional valve (11.1), second stacked unidirectional valve (11.2), the overlapping throttle valve (13) of connection successively; The inlet opening of switching solenoid valve (8) is connected with one road delivery outlet of emergency shutdown solenoid valve (5); two delivery outlets of switching solenoid valve (8) are communicated with the inlet opening and the pressure relay (12) of minor swing solenoid valve (7) and Proportional valve (10) respectively; two delivery outlets of minor swing solenoid valve (7) link to each other with the switch cavity of guide vane servomotor (1) through two chambeies of second stacked unidirectional valve (11.2) and overlapping throttle valve (13) respectively; between switching solenoid valve (8) and the Proportional valve (10) filter (9) is installed, two delivery outlets of Proportional valve (10) link to each other with the switch cavity of guide vane servomotor (1) through two chambeies of first stacked unidirectional valve (11.1) respectively.
2. digital valve according to claim 1 and Proportional valve redundant mechanical hydraulic control device is characterized in that: the guide vane servomotor quick control partly comprises successively the hydraulicchange-over valve (2) that connects, tightly stops hydraulic operated valve (3), solenoid directional control valve (4), emergency shutdown solenoid valve (5); Pressure oil is through one road delivery outlet of emergency shutdown solenoid valve (5) inlet opening to solenoid directional control valve (4); and another road delivery outlet is to the control chamber and the accident active chamber that tightly stop hydraulic operated valve (3); two delivery outlets of solenoid directional control valve (4) are communicated with two control mouths of hydraulicchange-over valve (2); hydraulicchange-over valve (2) tightly stops hydraulic operated valve (3) and is installed between solenoid directional control valve (4) and the hydraulicchange-over valve (2) as adjusting the output element of guide vane servomotor (1) snap switch speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020193844XU CN201751565U (en) | 2010-05-07 | 2010-05-07 | Redundant mechanical hydraulic control device of digital valve and proportional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020193844XU CN201751565U (en) | 2010-05-07 | 2010-05-07 | Redundant mechanical hydraulic control device of digital valve and proportional valve |
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| Publication Number | Publication Date |
|---|---|
| CN201751565U true CN201751565U (en) | 2011-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020193844XU Expired - Fee Related CN201751565U (en) | 2010-05-07 | 2010-05-07 | Redundant mechanical hydraulic control device of digital valve and proportional valve |
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| CN (1) | CN201751565U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155446A (en) * | 2011-03-10 | 2011-08-17 | 武汉航天波纹管股份有限公司 | Segmental control integration-type electro-hydraulic digital valve |
| CN108226679A (en) * | 2018-01-10 | 2018-06-29 | 云南电网有限责任公司电力科学研究院 | A kind of adjustable test method of servomotor reaction time constant and device |
| CN109441914A (en) * | 2018-12-06 | 2019-03-08 | 惠州蓄能发电有限公司 | A kind of gate Hydraulic Double redundancy control apparatus and method |
-
2010
- 2010-05-07 CN CN201020193844XU patent/CN201751565U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155446A (en) * | 2011-03-10 | 2011-08-17 | 武汉航天波纹管股份有限公司 | Segmental control integration-type electro-hydraulic digital valve |
| CN102155446B (en) * | 2011-03-10 | 2013-04-17 | 武汉航天波纹管股份有限公司 | Segmental control integration-type electro-hydraulic digital valve |
| CN108226679A (en) * | 2018-01-10 | 2018-06-29 | 云南电网有限责任公司电力科学研究院 | A kind of adjustable test method of servomotor reaction time constant and device |
| CN109441914A (en) * | 2018-12-06 | 2019-03-08 | 惠州蓄能发电有限公司 | A kind of gate Hydraulic Double redundancy control apparatus and method |
| CN109441914B (en) * | 2018-12-06 | 2024-01-09 | 惠州蓄能发电有限公司 | Gate hydraulic double-redundancy control device and method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110223 Termination date: 20170507 |
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| CF01 | Termination of patent right due to non-payment of annual fee |