CN203404016U - Head cover drainage intelligent control system of hydropower station - Google Patents
Head cover drainage intelligent control system of hydropower station Download PDFInfo
- Publication number
- CN203404016U CN203404016U CN201320410626.0U CN201320410626U CN203404016U CN 203404016 U CN203404016 U CN 203404016U CN 201320410626 U CN201320410626 U CN 201320410626U CN 203404016 U CN203404016 U CN 203404016U
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- Prior art keywords
- head cover
- pump motor
- power plant
- water pump
- intelligent control
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 101
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 238000004891 communication Methods 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 claims description 4
- 239000004973 liquid crystal related substance Substances 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 abstract description 9
- 230000005856 abnormality Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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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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- Control Of Positive-Displacement Pumps (AREA)
- Testing And Monitoring For Control Systems (AREA)
Abstract
The utility model discloses a head cover drainage intelligent control system of a hydropower station. The head cover drainage intelligent control system comprises a water pump motor set, a head cover liquid level switch, a head cover liquid level sensor and a water pump drainage flow switch, wherein the water pump motor set, the head cover liquid level switch, the head cover liquid level sensor and the water pump drainage flow switch are connected with a head cover drainage intelligent control device of the hydropower station. The head cover drainage intelligent control device of the hydropower station is connected with a whole plant monitoring system through a hard contact switch value upward-sending circuit, an analog quantity output module and a communication module. The water pump motor set is at least provided with two water pump motors. When the main water pump motor can not conduct drainage timely while the water level below a water cover rises too fast or after a main water pump breaks down, a PLC of the head cover drainage intelligent control device of the hydropower station can automatically switch the water pump motors to standby water pump motors to conduct drainage, and therefore intelligent control of drainage of the water cover is achieved. The high-performance PLC can automatically collect the water level in the position of the head cover and work signals of parts such as the water pump motors, and can give an alarm when faults appear, and therefore it is ensured that the faults are timely processed.
Description
Technical field
The utility model belongs to public auxiliary drainage equipment control technique field, water power plant, is specifically related to a kind of water power plant head cover drainage intelligent control system.
Background technique
Water power plant top cover draining control system is the important component part of the public supplementary equipment in water power plant, object is in order to control top cover water level under machine guide bearing, prevent that current from infiltrating machine guide bearing between main shaft and top cover, its normal operation is to guarantee that other equipment operations of water power plant and even generator normally move the precondition of generating.
At present, conventional Control based on traditional, due to easy break-down, the factor such as easy care, complex structure cannot not taken turns the technology of the miniature PLC that the work/standby mode of water-change pump or unity logic process, can not meet the needs of hydropower station at present " few people on duty, unmanned " development, simultaneously can not He Quan factory supervisory system realize Large Volume Data exchange, operation conditions and query history service data that can not real-time display system.
Model utility content
For above-mentioned deficiency of the prior art, water power plant head cover drainage intelligent control system that the utility model provides has solved water power plant top cover water pump and can not realize intelligent control and carry out the problem of exchanges data with plant area supervisory system.
In order to reach foregoing invention object, the technical solution adopted in the utility model is: a kind of water power plant head cover drainage intelligent control system is provided, it comprises water power plant head cover drainage intelligent controlling device, and the pump motor group, top cover liquid-level switch, top cover liquid level sensor and the water pump water outlet flow switch that are connected with water power plant head cover drainage intelligent controlling device respectively;
Described water power plant head cover drainage intelligent controlling device comprises PLC controller, and power transmission road in the pump motor group major loop being connected with PLC controller respectively, pump motor group control loop, control power loop, switching input module, switching value output module, analog input module, analog output module, communication module, man-machine control interface and hard contact switch amount;
Described water power plant head cover drainage intelligent controlling device is connected with communication module Yu Quan factory supervisory system by power transmission road in hard contact switch amount, analog output module; Described pump motor group is at least provided with two pump motors, and wherein at least one is main water pump motor, and at least one is reserve pump motor.
The beneficial effects of the utility model are: adopt top cover liquid-level switch and top cover liquid level sensor to carry out water level and automatically control, the control signal of two kinds of different principle participates in controlling simultaneously, verification mutually, has guaranteed the reliability of controlling; Too fast when the rising of top cover water level, main water pump motor has little time after draining, and the PLC controller of water power plant head cover drainage intelligent controlling device can automatically drop into reserve pump motor and carry out while draining, and guaranteed water level is in the scope requiring; When main water pump electrical fault, PLC controller also can excise main water pump motor automatically, drops into reserve pump motor and carries out draining, thereby realized the intelligent control of water cover draining; High performance PLC controller can gather the water level of top cover automatically, the working signal of the parts such as pump motor, thereby and the fault occurring is reported to the police and has been guaranteed that fault is processed in time, the coherent signal of collection is passed to plant area's supervisory system simultaneously.
Accompanying drawing explanation
Fig. 1 is the theory diagram of water power plant head cover drainage intelligent control system;
Fig. 2 is the control principle drawing of water power plant head cover drainage intelligent control system;
Fig. 3 is that the signal between water power plant head cover drainage intelligent control system Yu Quan factory supervisory system moves towards sketch.
Embodiment
As shown in Figure 1, this water power plant head cover drainage intelligent control system comprises water power plant head cover drainage intelligent controlling device, and the pump motor group, top cover liquid-level switch, top cover liquid level sensor and the water pump water outlet flow switch that are connected with water power plant head cover drainage intelligent controlling device respectively; Described water power plant head cover drainage intelligent controlling device connects by power transmission road, analog output module, communication module Yu Quan factory supervisory system in hard contact switch amount; Described pump motor group is at least provided with two pump motors (at least one is main water pump motor, and at least one is reserve pump motor).
As shown in Figure 2, described water power plant head cover drainage intelligent controlling device comprises PLC controller, and power transmission road in the pump motor group major loop being connected with PLC controller respectively, pump motor group control loop, control power loop, switching input module, switching value output module, analog input module, analog output module, communication module, man-machine control interface and hard contact switch amount; Wherein man-machine interface is liquid crystal touch screen, and communication module is RS485 communication module or ethernet communication module.
Motor main circuit number and the pump motor number of the setting of described pump motor group major loop match; Described motor main circuit is by inlet wire lightning-protection module, motor main circuit circuit breaker, motor contactor and thermal protection for motors relay is in sequential series forms.
Pump motor control loop number and the pump motor number of the setting of described pump motor group control loop match; Described pump motor control loop is provided with pump motor selector switch, pump motor start-stop button, pump motor error protection contact and pump motor on off control relay.
Described control power loop is mainly used in providing DC24V DC electrical source for PLC, man-machine interface, sensor.Described control power loop is two-way, one road incoming power is taken from the AC220V power supply of major loop, another road incoming power is DC220V DC electrical source, even if major loop ac power supply disappears, does not also affect the normal operation of PLC, man-machine interface and sensor, has improved the reliability of control system.Described control circuit by micro-disconnected, switch power module, isolating diode is in sequential series forms, in DC24V power outlet side, be provided with power monitoring relay simultaneously and monitor that DC24V controls having or not of power supply.
Described water power plant head cover drainage intelligent controlling device also comprises temperature and humidity controller, lighting set and maintenance socket; Described lighting set and maintenance socket are arranged in the cabinet of water power plant head cover drainage intelligent controlling device.
As shown in Figure 3, described switching input module comprises controls power monitoring contact, pump motor major loop breaker closing contact, pump motor is controlled power monitoring contact, pump motor control mode contact, pump motor operation contact, pump motor fault contact, exit of pump flow monitoring switch and top cover liquid-level switch contact, wherein control power monitoring contact, pump motor major loop breaker closing contact, pump motor is controlled power monitoring contact, pump motor control mode contact, pump motor operation contact, pump motor fault contact, the number of exit of pump flow monitoring switch equates with the quantity of pump motor.
Switching value output module comprises device resultant fault contact, top cover water level abnormality contact, two pump motor automatic control relay contacts and duplicate relay contact.
In hard contact switch amount, power transmission road comprises pump motor control mode contact, pump motor operation contact, pump motor resultant fault contact control power monitoring contact, device resultant fault contact and top cover water level abnormality contact.
The working principle of this water power plant head cover drainage intelligent control system is: when water power plant head cover drainage intelligent control system is judged top cover water level in water pool higher than " main water pump startup " water level settings value by top cover liquid level sensor (" main water pump startup " water level switch is also closed simultaneously), PLC controller detects main water pump motor fault-free, as fault-free, switching value output module is connected main water pump control relay, by main water pump control relay, connect main water pump major loop contactor, by main water pump major loop contactor, connect main water pump motor main circuit, start pump motor, main water pump flow switch is closed, main water pump starts draining.As water level rises too fast, when top cover water level continues to rise to " reserve pump startup " water level settings value (" reserve pump startup " water level switch is also closed simultaneously), PLC controller sends and starts reserve pump order, switching value output module is connected reserve pump control relay, by reserve pump control relay, connect reserve pump major loop contactor, by reserve pump major loop contactor, connect reserve pump motor main circuit and start reserve pump motor, reserve pump flow switch is closed, and reserve pump starts draining.When top cover water level in water pool drops to " termination of pumping " water level settings value (" termination of pumping " water level switch is also closed simultaneously), PLC controller sends termination of pumping order, and main water pump and reserve pump quit work.As water power plant head cover drainage intelligent control system has fault, device relay sends reports to the police and lights the plant failure tutorial light on panel; As too high in top cover water level in water pool, top cover water level abnormality relay sends reports to the police and lights the top cover water level abnormality tutorial light in man-machine interface.
Although by reference to the accompanying drawings embodiment of the present utility model is described in detail, should not be construed as the restriction to the protection domain of this patent.In the described scope of claims, the various modifications that those skilled in the art can make without creative work and distortion still belong to the protection domain of this patent.
Claims (6)
1. a water power plant head cover drainage intelligent control system, it is characterized in that: comprise water power plant head cover drainage intelligent controlling device, and the pump motor group, top cover liquid-level switch, top cover liquid level sensor and the water pump water outlet flow switch that are connected with water power plant head cover drainage intelligent controlling device respectively;
Described water power plant head cover drainage intelligent controlling device comprises PLC controller, and power transmission road in the pump motor group major loop being connected with PLC controller respectively, pump motor group control loop, control power loop, switching input module, switching value output module, analog input module, analog output module, communication module, man-machine interface and hard contact switch amount;
Described water power plant head cover drainage intelligent controlling device is connected with communication module Yu Quan factory supervisory system by power transmission road in hard contact switch amount, analog output module; Described pump motor group is at least provided with two pump motors.
2. water power plant according to claim 1 head cover drainage intelligent control system, is characterized in that: motor main circuit number and the pump motor number of the setting of described pump motor group major loop match; Described motor main circuit is by inlet wire lightning-protection module, motor main circuit circuit breaker, motor contactor and thermal protection for motors relay is in sequential series forms.
3. water power plant according to claim 1 head cover drainage intelligent control system, is characterized in that: pump motor control loop number and the pump motor number of the setting of described pump motor group control loop match; Described pump motor control loop is provided with pump motor selector switch, pump motor start-stop button, pump motor error protection contact and pump motor on off control relay.
4. according to the arbitrary described water power plant head cover drainage intelligent control system of claim 1-3, it is characterized in that: described water power plant head cover drainage intelligent controlling device also comprises temperature and humidity controller, lighting set and maintenance socket; Described lighting set and maintenance socket are arranged in the cabinet of water power plant head cover drainage intelligent controlling device.
5. according to the arbitrary described water power plant head cover drainage intelligent control system of claim 1-3, it is characterized in that: described man-machine interface is liquid crystal touch screen.
6. according to the arbitrary described water power plant head cover drainage intelligent control system of claim 1-3, it is characterized in that: described communication module is RS485 communication module or ethernet communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320410626.0U CN203404016U (en) | 2013-07-11 | 2013-07-11 | Head cover drainage intelligent control system of hydropower station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320410626.0U CN203404016U (en) | 2013-07-11 | 2013-07-11 | Head cover drainage intelligent control system of hydropower station |
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| Publication Number | Publication Date |
|---|---|
| CN203404016U true CN203404016U (en) | 2014-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320410626.0U Expired - Fee Related CN203404016U (en) | 2013-07-11 | 2013-07-11 | Head cover drainage intelligent control system of hydropower station |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481792A (en) * | 2014-11-06 | 2015-04-01 | 国家电网公司 | Water level detecting and control device and method |
| CN107450616A (en) * | 2017-09-04 | 2017-12-08 | 嘉兴奥拓迈讯自动化控制技术有限公司 | Supersonic liquid level detection Full-automatic drainage water drainage control system |
| CN111828241A (en) * | 2020-07-09 | 2020-10-27 | 四川华能宝兴河水电有限责任公司 | Early warning system and method for hydropower station unit |
| CN112983717A (en) * | 2021-03-03 | 2021-06-18 | 广西森格自动化科技股份有限公司 | Intelligent water drainage method for top cover of water turbine |
| CN115288993A (en) * | 2022-03-17 | 2022-11-04 | 江西省港航建设投资集团有限公司 | Hydropower station maintenance drainage control device |
-
2013
- 2013-07-11 CN CN201320410626.0U patent/CN203404016U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481792A (en) * | 2014-11-06 | 2015-04-01 | 国家电网公司 | Water level detecting and control device and method |
| CN107450616A (en) * | 2017-09-04 | 2017-12-08 | 嘉兴奥拓迈讯自动化控制技术有限公司 | Supersonic liquid level detection Full-automatic drainage water drainage control system |
| CN107450616B (en) * | 2017-09-04 | 2021-04-16 | 嘉兴奥拓迈讯自动化控制技术有限公司 | Full-automatic drainage and waterlogging drainage control system for ultrasonic liquid level detection |
| CN111828241A (en) * | 2020-07-09 | 2020-10-27 | 四川华能宝兴河水电有限责任公司 | Early warning system and method for hydropower station unit |
| CN111828241B (en) * | 2020-07-09 | 2022-03-01 | 华能集团技术创新中心有限公司 | Early warning system for hydropower station unit |
| CN112983717A (en) * | 2021-03-03 | 2021-06-18 | 广西森格自动化科技股份有限公司 | Intelligent water drainage method for top cover of water turbine |
| CN112983717B (en) * | 2021-03-03 | 2023-04-11 | 广西森格自动化科技股份有限公司 | Intelligent water drainage method for top cover of water turbine |
| CN115288993A (en) * | 2022-03-17 | 2022-11-04 | 江西省港航建设投资集团有限公司 | Hydropower station maintenance drainage control device |
| CN115288993B (en) * | 2022-03-17 | 2024-06-21 | 江西省港航建设投资集团有限公司 | Hydropower station overhauling drainage control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140122 |
|
| CU01 | Correction of utility model | ||
| CU01 | Correction of utility model |
Correction item: Termination upon expiration of patent Correct: Revocation of Patent Expiration and Termination False: On July 28, 2023, the expiration and termination of the 39-volume 3002 patent Number: 30-02 Volume: 39 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140122 |