CN102705150A - Step-closing device for speed regulator of water turbine generator set and method thereof - Google Patents
Step-closing device for speed regulator of water turbine generator set and method thereof Download PDFInfo
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- CN102705150A CN102705150A CN2012101954268A CN201210195426A CN102705150A CN 102705150 A CN102705150 A CN 102705150A CN 2012101954268 A CN2012101954268 A CN 2012101954268A CN 201210195426 A CN201210195426 A CN 201210195426A CN 102705150 A CN102705150 A CN 102705150A
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- subsection
- mechanical
- closed device
- solenoid valve
- sequence closing
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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 invention discloses a step-closing device for a speed regulator of a water turbine generator set, which acts only in case of water turbine protection, can avoid over-high frequency of action under normal conditions, has less influence on pipelines, works safely and reliably, has long service life and simple structure, and is easy to install. The step-closing device comprises a mechanical step-closing device, a programmable controller, an input module and an output module, wherein the step-closing device further comprises a solenoid valve coil and a step-closing solenoid valve, which are mounted in the position of the oil pipe of the mechanical step-closing device; the output initial signal from the programmable controller is transferred to a water guide mechanism through the output module, the solenoid valve coil, the step-closing solenoid valve and the mechanical step-closing device; and the turning point position signal of the water guide blade of the water guide mechanism is transferred into the programmable controller through the mechanical step-closing device and the input module. The invention also provides a step-closing method using the device.
Description
Technical field
The invention belongs to hydroelectric technical field, relate to a kind of subsection and closed device of hydraulic generator unit speed regulator particularly, and the method for utilizing this device.
Background technique
Satisfy the accent of Large Hydroelectric Set for example and protect calculation requirement, hydraulic generator unit speed regulator adopts subsection and closed device.Present most subsection and closed device is the subsection and closed device of machinery, and as long as guide vane is through flex point, and subsection and closed device just starts.For frequency modulation, peak regulation unit, the guide vane adjustment is frequent, and the action of subsection and closed device is also just frequent, increases time of movement, and the pipeline vibrations are increased, and has potential safety hazard, reduces working life simultaneously.And complex structure, difficult installation.
Summary of the invention
Technology of the present invention is dealt with problems and is: overcome the deficiency of existing technology, provide a kind of and have only the water organizational security to protect just action, can avoid that the normal condition action frequency is too high, the pipeline influence is little, safe and reliable, long service life, simple in structure, the subsection and closed device that is easy to hydraulic generator unit speed regulator is installed.
Technical solution of the present invention is: the subsection and closed device of this hydraulic generator unit speed regulator; Comprise mechanical subsection and closed device, programmable controller, load module, output module; Also be included in the electromagnetic valve coil and the sequence closing solenoid valve of the oil pipe place installation of mechanical subsection and closed device; The output actuating signal of programmable controller arrives water distributor through output module, electromagnetic valve coil, sequence closing solenoid valve, mechanical subsection and closed device, and the guide vane corner position signal of water distributor gets into programmable controller through mechanical subsection and closed device, load module.
Because this device is installed electromagnetic valve coil and sequence closing solenoid valve at the oil pipe place of mechanical subsection and closed device; The output actuating signal of programmable controller arrives water distributor through output module, electromagnetic valve coil, sequence closing solenoid valve, mechanical subsection and closed device; The guide vane corner position signal of water distributor gets into programmable controller through mechanical subsection and closed device, load module, thus have only the water organizational security to protect just to move, avoid that the normal condition action frequency is too high, the pipeline influence is little, safe and reliable, long service life, simple in structure, install easy.
The sequence closing that uses this device method also is provided, has may further comprise the steps:
(1) beginning;
(2) judge whether to reach the sequence closing operation condition, if execution in step (3) then, otherwise execution in step (4);
(3) the sequence closing solenoid valve starts, the action of sequence closing hydrovalve, and water distributor is sectional-regulated;
(4) water distributor normal regulating;
(5) finish.
Description of drawings
Fig. 1 shows the circuit theory diagrams according to the subsection and closed device of hydraulic generator unit speed regulator of the present invention;
Fig. 2 shows the flow chart according to the sequence closing method of hydraulic generator unit speed regulator of the present invention.
Embodiment
As shown in Figure 1; The subsection and closed device of this hydraulic generator unit speed regulator; Comprise mechanical subsection and closed device, programmable controller, load module, output module; Also be included in the electromagnetic valve coil and the sequence closing solenoid valve of the oil pipe place installation of mechanical subsection and closed device; The output actuating signal of programmable controller arrives water distributor through output module, electromagnetic valve coil, sequence closing solenoid valve, mechanical subsection and closed device, and the guide vane corner position signal of water distributor gets into programmable controller through mechanical subsection and closed device, load module.
Because this device is installed electromagnetic valve coil and sequence closing solenoid valve at the oil pipe place of mechanical subsection and closed device; The output actuating signal of programmable controller arrives water distributor through output module, electromagnetic valve coil, sequence closing solenoid valve, mechanical subsection and closed device; The guide vane corner position signal of water distributor gets into programmable controller through mechanical subsection and closed device, load module, thus have only the water organizational security to protect just to move, avoid that the normal condition action frequency is too high, the pipeline influence is little, safe and reliable, long service life, simple in structure, install easy.
Preferably, as shown in Figure 2, the sequence closing method of the subsection and closed device of the described hydraulic generator unit of use claim 1 speed regulator may further comprise the steps:
(1) beginning;
(2) judge whether to reach the sequence closing operation condition, if execution in step (3) then, otherwise execution in step (4);
(3) the sequence closing solenoid valve starts, the action of sequence closing hydrovalve, and water distributor is sectional-regulated;
(4) water distributor normal regulating;
(5) finish.
Preferably, the sequence closing operation condition of step (2) comprising:
(a) unit removal of load and more than 20,000 megawatts;
(b) accident oil pressure action;
(c) electric accident, mechanical accident action;
(d) the electric speed of crossing is moved;
(e) steel pipe hydraulic pressure is more than or equal to 0.7Mpa.
The above; It only is preferred embodiment of the present invention; Be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs to the protection domain of technological scheme of the present invention to any simple modification, equivalent variations and modification that above embodiment did.
Claims (3)
1. the subsection and closed device of a hydraulic generator unit speed regulator; Comprise mechanical subsection and closed device, programmable controller, load module, output module; It is characterized in that: the electromagnetic valve coil and the sequence closing solenoid valve that also are included in the oil pipe place installation of mechanical subsection and closed device; The output actuating signal of programmable controller arrives water distributor through output module, electromagnetic valve coil, sequence closing solenoid valve, mechanical subsection and closed device, and the guide vane corner position signal of water distributor gets into programmable controller through mechanical subsection and closed device, load module.
2. use the sequence closing method of the subsection and closed device of the described hydraulic generator unit of claim 1 speed regulator, it is characterized in that: may further comprise the steps:
(1) beginning;
(2) judge whether to reach the sequence closing operation condition, if execution in step (3) then, otherwise execution in step (4);
(3) the sequence closing solenoid valve starts, the action of sequence closing hydrovalve, and water distributor is sectional-regulated;
(4) water distributor normal regulating;
(5) finish.
3. sequence closing method according to claim 2 is characterized in that: the sequence closing operation condition of step (2) comprising:
(a) unit removal of load and more than 20,000 megawatts;
(b) accident oil pressure action;
(c) electric accident, mechanical accident action;
(d) the electric speed of crossing is moved;
(e) steel pipe hydraulic pressure is more than or equal to 0.7Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101954268A CN102705150A (en) | 2012-06-14 | 2012-06-14 | Step-closing device for speed regulator of water turbine generator set and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101954268A CN102705150A (en) | 2012-06-14 | 2012-06-14 | Step-closing device for speed regulator of water turbine generator set and method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102705150A true CN102705150A (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101954268A Pending CN102705150A (en) | 2012-06-14 | 2012-06-14 | Step-closing device for speed regulator of water turbine generator set and method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN102705150A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139350A (en) * | 2018-09-29 | 2019-01-04 | 东方电机控制设备有限公司 | A kind of overspeed protection and volume control device for hydroenergy storage station |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4578017A (en) * | 1983-04-14 | 1986-03-25 | Kabushiki Kaisha Toshiba | Method for stopping a multi-stage hydraulic machine |
| KR20050022751A (en) * | 2003-08-29 | 2005-03-08 | 장종오 | Method for circulating water by head impact load pressure of water and a buoyant generating apparatus capable of semipermanently generating electric energy |
| CN2755305Y (en) * | 2004-08-13 | 2006-02-01 | 武汉事达电气股份有限公司 | Redundant cross speed adjuster with double channel of microcomputer for digital large hydroturbine |
| CN201753655U (en) * | 2010-05-18 | 2011-03-02 | 武汉四创自动控制技术有限责任公司 | Control device employing mechanical and electrical redundancy sectional closing mode |
| CN202611985U (en) * | 2012-06-14 | 2012-12-19 | 丰满发电厂 | Segmental closing device of speed governor of water turbine generator set |
-
2012
- 2012-06-14 CN CN2012101954268A patent/CN102705150A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4578017A (en) * | 1983-04-14 | 1986-03-25 | Kabushiki Kaisha Toshiba | Method for stopping a multi-stage hydraulic machine |
| KR20050022751A (en) * | 2003-08-29 | 2005-03-08 | 장종오 | Method for circulating water by head impact load pressure of water and a buoyant generating apparatus capable of semipermanently generating electric energy |
| CN2755305Y (en) * | 2004-08-13 | 2006-02-01 | 武汉事达电气股份有限公司 | Redundant cross speed adjuster with double channel of microcomputer for digital large hydroturbine |
| CN201753655U (en) * | 2010-05-18 | 2011-03-02 | 武汉四创自动控制技术有限责任公司 | Control device employing mechanical and electrical redundancy sectional closing mode |
| CN202611985U (en) * | 2012-06-14 | 2012-12-19 | 丰满发电厂 | Segmental closing device of speed governor of water turbine generator set |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139350A (en) * | 2018-09-29 | 2019-01-04 | 东方电机控制设备有限公司 | A kind of overspeed protection and volume control device for hydroenergy storage station |
| CN109139350B (en) * | 2018-09-29 | 2024-01-26 | 东方电气自动控制工程有限公司 | Overspeed protection and flow control device for pumped storage power station |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121003 |