CN201753655U - Control device employing mechanical and electrical redundancy sectional closing mode - Google Patents
Control device employing mechanical and electrical redundancy sectional closing mode Download PDFInfo
- Publication number
- CN201753655U CN201753655U CN2010202026484U CN201020202648U CN201753655U CN 201753655 U CN201753655 U CN 201753655U CN 2010202026484 U CN2010202026484 U CN 2010202026484U CN 201020202648 U CN201020202648 U CN 201020202648U CN 201753655 U CN201753655 U CN 201753655U
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- valve
- control
- guide
- sequence closing
- mouth
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The utility model discloses a control device employing mechanical and electrical redundancy sectional closing mode, which comprises a guide electromagnetic valve control sectional closing part and a guide stroke valve control sectional closing part; the guide electromagnetic valve control sectional closing part comprises a guide electromagnetic valve (3) and a shuttle valve (2) connected with each other in sequence; hydraulic oil enters the first input port A2 of the shuttle valve (2) through the output port A1 of the guide electromagnetic valve (3), the output port A3 of the shuttle valve is connected with the control port A5 of a sectional closing unit (1); the guide stroke valve control sectional closing part comprises a guide stroke valve (4), a cam (5) and a shuttle valve (2) connected in sequence; the hydraulic oil enters the second input port A4 of the shuttle valve (2) through the output port A of the guide stroke valve (4), and the output port A3 of the shuttle valve is connected with the control port A5 of the sectional closing unit.
Description
Technical field
The utility model relates to the control gear of a kind of machinery and the redundant sequence closing of electrical equipment, 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 ".And guide's control section of former conventional sequence closing is guide's stroke valve control (mechanical type), exists between guide's stroke valve and the sequence closing distance far away, and the control oil pipe line is longer, and the pressure loss is bigger, shortcomings such as sequence closing action hysteresis.Guide's control section of the sequence closing of existing main flow is pilot solenoid valve control (electrical equipment formula), the position of pilot solenoid valve is versatile and flexible, can directly be installed on the sequence closing main valve body, has effectively avoided the control oil pipe line longer, the pressure loss is bigger, shortcomings such as sequence closing action hysteresis.But need reliable electrical signal to control pilot solenoid valve, because the position of the microcomputer in power station and subsection and closed device distance is far away, control signal line is longer, has the potential safety hazard of microcomputer outage and control signal line broken string.Machinery is exactly the mechanical-hydraulic control gear that designs under this background with the redundant sequence closing control gear of electrical equipment.
Summary of the invention
The purpose of this utility model is that the hydrovalve with various functions matches, design a mechanism control gear with the redundant sequence closing of electrical equipment is in pass, the removal of load or tightly stop under the situation fast, safety, control the rotating speed of hydraulic turbine generator and the hydraulic pressure and the water hammer of conduit pipe and volute effectively, reliably fast of the stator of hydraulic turbine generator.And pilot solenoid valve and guide's stroke valve can be controlled simultaneously, and master control and auxilliary control can be provided with flexibly when controlling simultaneously; Also can control an elder generation one back, control successively also can be provided with flexibly.The rapidity and the reliability of subsection and closed device action have effectively been improved.Improved the Security of hydraulic generator unit greatly.
The technical solution of the utility model: control gear pilot solenoid valve and guide's stroke valve of the redundant sequence closing of machinery of the present utility model and electrical equipment adopt redundant Placement, and oil circuit adopts parallel way to connect.
Pilot solenoid valve control sequence closing part and guide's stroke valve control sequence closing part, its pilot solenoid valve control sequence closing partly comprises pilot solenoid valve, the shuttle valve that connects successively; Hydraulic oil is through the delivery outlet A1 of the pilot solenoid valve first inlet opening A2 to shuttle valve, and the delivery outlet A3 of shuttle valve links to each other with the control mouth A5 of sequence closing; Guide's stroke valve control sequence closing partly comprises guide's stroke valve, cam, the shuttle valve that connects successively; Hydraulic oil is through the delivery outlet A of the guide's stroke valve second inlet opening A4 to shuttle valve, and the delivery outlet A3 of shuttle valve links to each other with the control mouth A5 of sequence closing.
Advantage of the present utility model: the utility model machinery adopts the titer casting die of various functions to form with the control gear of the redundant sequence closing of electrical equipment; Pilot solenoid valve and guide's stroke valve adopt parallel way, do not disturb mutually.Function is more complete: electrical equipment fragmentation feature, mechanical fragmentation feature are arranged; Can control fragmentation feature simultaneously, master control and auxilliary control can be provided with flexibly when controlling simultaneously; Also can control fragmentation feature in an elder generation one back, control is earlier controlled with the back and also can be provided with flexibly.The reliability of mechanical type segmentation and the rapidity of electrical equipment formula segmentation have been given full play to.Simple in structure, layout is flexible, is easy to install, adjusts, safeguards.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 controlled under various operating modes.
Fig. 1 is a machinery hydraulic system schematic diagram of the present utility model:
The utility model comprises pilot solenoid valve control sequence closing part and guide's stroke valve control sequence closing part.
Pilot solenoid valve control sequence closing partly comprises pilot solenoid valve 3, the shuttle valve 2 that connects successively; Hydraulic oil is through the P1 of pilot solenoid valve 3, the A1 mouth first inlet opening A2 to shuttle valve 2, and the delivery outlet A3 of shuttle valve 2 links to each other with the control mouth A5 of sequence closing.Guide's stroke valve control sequence closing partly comprises guide's stroke valve 4, cam 5, the shuttle valve 2 that connects successively; Hydraulic oil is through the P mouth of guide's stroke valve 4, the A mouth second inlet opening A4 to shuttle valve 2, and the delivery outlet A3 of shuttle valve 2 links to each other with the control mouth A5 of sequence closing.
The normal state of each valve when Fig. 1 is not segmentation.Pilot solenoid valve 3 is a main control valve, and guide's stroke valve 4 is auxilliary control valve.Hydraulic oil is only to the P1 mouth of pilot solenoid valve 3 and the P mouth of guide's stroke valve 4, and the A5 mouth of sequence closing 1 is back to oil sump tank through A1, the T1 mouth of the A2 of shuttle valve 2 mouth, pilot solenoid valve 3.Or be back to oil sump tank through A, the T mouth of the A4 of shuttle valve 2 mouth guide stroke valve 4.
Sequence closing (1) is in parallel with throttle valve (1b) by one-way valve (1a).
When guide vane servomotor needed segmentation to drop into: pilot solenoid valve 3 received the microcomputer segmentation and drops into signal, hydraulic oil is through the P1 of pilot solenoid valve 3, the A1 mouth A2 mouth to shuttle valve 2, push guide's stroke valve 4 to setting waypoint cam 5 simultaneously, hydraulic oil is through the P mouth of guide's stroke valve 4, the A mouth A4 mouth to shuttle valve 2, because the first inlet opening A2 mouth thrust of shuttle valve 2 is bigger than the second inlet opening A4 mouth thrust, so the hydraulic oil in the A2 mouth of shuttle valve 2 enters the A5 mouth of sequence closing 1 through the A3 mouth, promote sequence closing 1 and carry out segmentation.And the bypass one-way valve 1a in the sequence closing 1 make the hydraulic oil of beginning to speak from speed regulator through the B of sequence closing 1 to B1, enter the not throttling of hydraulic oil (not segmentation) that guide vane servomotor 6 is begun to speak then, a throttling (segmentation) guide vane servomotor 6 the hydraulic oil of beginning to speak to the B1 of sequence closing 1 to B.
When guide vane servomotor needed the segmentation involution: pilot solenoid valve 3 received microcomputer segmentation slot signal, and cam 5 breaks away from guide's stroke valve 4 simultaneously.To oil sump tank, or the A5 mouth hydraulic oil of sequence closing 1 is back to 1 involution of oil sump tank sequence closing to fragmentation state not through A, T mouth through guide's stroke valve 4 to the A5 mouth hydraulic oil of sequence closing 1 through the A1 of the first inlet opening A2 mouth of shuttle valve 2, pilot solenoid valve 3, T1 mouth.
If when guide's stroke valve 4 had fault can not normally carry out segmentation control: pilot solenoid valve 3 received the microcomputer segmentation and drops into signal, hydraulic oil is through the P1 of pilot solenoid valve 3, the A1 mouth first inlet opening A2 mouth to shuttle valve 2, hydraulic oil in the first inlet opening A2 mouth of shuttle valve 2 enters the A5 mouth of sequence closing 1 through the A3 mouth, promotes sequence closing 1 and carries out segmentation.
When if pilot solenoid valve 3 or signaling line or microcomputer etc. have fault can not normally carry out segmentation control: cam 5 pushes guide's stroke valve 4 during to the setting waypoint, hydraulic oil is through the P of guide's stroke valve 4, the A mouth second inlet opening A4 mouth to shuttle valve 2, hydraulic oil in the A4 mouth of shuttle valve 2 enters the A5 mouth of sequence closing 1 through the A3 mouth, promotes sequence closing 1 and carries out segmentation.
The utility model has electrical equipment fragmentation feature, mechanical fragmentation feature; Can control fragmentation feature simultaneously, master control and auxilliary control can be provided with flexibly when controlling simultaneously; Also can control fragmentation feature in an elder generation one back, control is earlier controlled with the back and also can be provided with flexibly.The reliability of mechanical type segmentation and the rapidity of electrical equipment formula segmentation have been given full play to.When the mechanical type segment failure, the segmentation of electrical equipment formula can be carried out segmentation control fast.When electrical equipment formula segment failure, segmentation control can be reliably carried out in the mechanical type segmentation.
What pilot solenoid valve of the present utility model, guide's stroke valve adopted is that solenoid directional control valve, return of stroke valve can also adopt Solenoid ball valve, Proportional valve, proportional servo valve, servovalve, roller selector valve etc.
Core of the present utility model is: machinery adopts redundant Placement with pilot solenoid valve and guide's stroke valve of the redundant sequence closing control gear of electrical equipment, and oil circuit adopts parallel way to connect, mutually not in disturbing.Therefore no matter how concrete element is replaced, how variation, mounting point change, the Placement of all employing pilot solenoid valves and guide's stroke valve redundancy, and oil circuit adopts the parallel way connection, all belongs to protection domain of the present utility model.
Claims (3)
1. the control gear of the redundant sequence closing of machinery and electrical equipment, comprise pilot solenoid valve control sequence closing part and guide's stroke valve control sequence closing part, it is characterized in that: pilot solenoid valve and guide's stroke valve adopt redundant Placement, and oil circuit adopts parallel way to connect.
2. the control gear of the redundant sequence closing of tool according to claim 1 and electrical equipment is characterized in that: pilot solenoid valve control sequence closing partly comprises pilot solenoid valve (3), the shuttle valve (2) that connects successively; Hydraulic oil is through the delivery outlet A1 of pilot solenoid valve (3) the first inlet opening A2 to shuttle valve (2), and the delivery outlet A3 of shuttle valve links to each other with the control mouth A5 of sequence closing (1); Guide's stroke valve control sequence closing partly comprises guide's stroke valve (4), cam (5), the shuttle valve (2) that connects successively; Hydraulic oil is through the delivery outlet A of guide's stroke valve (4) the second inlet opening A4 to shuttle valve (2), and the delivery outlet A3 of shuttle valve links to each other with the control mouth A5 of sequence closing.
3. the control gear of the redundant sequence closing of tool according to claim 1 and 2 and electrical equipment, it is characterized in that: sequence closing (1) is in parallel with throttle valve (1b) by one-way valve (1a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202026484U CN201753655U (en) | 2010-05-18 | 2010-05-18 | Control device employing mechanical and electrical redundancy sectional closing mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202026484U CN201753655U (en) | 2010-05-18 | 2010-05-18 | Control device employing mechanical and electrical redundancy sectional closing mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201753655U true CN201753655U (en) | 2011-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202026484U Expired - Fee Related CN201753655U (en) | 2010-05-18 | 2010-05-18 | Control device employing mechanical and electrical redundancy sectional closing mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201753655U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678642A (en) * | 2012-05-03 | 2012-09-19 | 江苏四明工程机械有限公司 | Hydraulic control system for lifting and lowering working devices of engineering machinery |
| CN102705150A (en) * | 2012-06-14 | 2012-10-03 | 丰满发电厂 | Step-closing device for speed regulator of water turbine generator set and method thereof |
| CN102777315A (en) * | 2012-08-22 | 2012-11-14 | 哈尔滨电机厂有限责任公司 | Pure manual control hydraulic closed-loop device of speed controller |
| CN102954066A (en) * | 2012-11-19 | 2013-03-06 | 无锡九条龙汽车设备有限公司 | Connecting method for speed changing loop adopting motion valve of hydraulic system |
| CN105156387A (en) * | 2015-08-24 | 2015-12-16 | 芜湖市汽车产业技术研究院有限公司 | Pneumatic reversing loop system controlled through stroke valve and reversing method |
| CN113309660A (en) * | 2021-06-23 | 2021-08-27 | 中国长江电力股份有限公司 | Intelligent sectional closing control system and method for speed regulator |
-
2010
- 2010-05-18 CN CN2010202026484U patent/CN201753655U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678642A (en) * | 2012-05-03 | 2012-09-19 | 江苏四明工程机械有限公司 | Hydraulic control system for lifting and lowering working devices of engineering machinery |
| CN102705150A (en) * | 2012-06-14 | 2012-10-03 | 丰满发电厂 | Step-closing device for speed regulator of water turbine generator set and method thereof |
| CN102777315A (en) * | 2012-08-22 | 2012-11-14 | 哈尔滨电机厂有限责任公司 | Pure manual control hydraulic closed-loop device of speed controller |
| CN102954066A (en) * | 2012-11-19 | 2013-03-06 | 无锡九条龙汽车设备有限公司 | Connecting method for speed changing loop adopting motion valve of hydraulic system |
| CN105156387A (en) * | 2015-08-24 | 2015-12-16 | 芜湖市汽车产业技术研究院有限公司 | Pneumatic reversing loop system controlled through stroke valve and reversing method |
| CN113309660A (en) * | 2021-06-23 | 2021-08-27 | 中国长江电力股份有限公司 | Intelligent sectional closing control system and method for speed regulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20110302 Termination date: 20170518 |
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| CF01 | Termination of patent right due to non-payment of annual fee |