CN218544051U - Water-storage power station ball valve pressure steel pipe section monitoring devices that leaks - Google Patents
Water-storage power station ball valve pressure steel pipe section monitoring devices that leaks Download PDFInfo
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- CN218544051U CN218544051U CN202223200178.XU CN202223200178U CN218544051U CN 218544051 U CN218544051 U CN 218544051U CN 202223200178 U CN202223200178 U CN 202223200178U CN 218544051 U CN218544051 U CN 218544051U
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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 relates to a water-storage power station ball valve pressure steel pipe section monitoring devices that leaks, it has solved how to carry out the technical problem that detects to the non-buried partial condition of leaking of pressure steel pipe in water-storage power station, it includes first electrode, the second electrode, resistance tester, power station LCU controller, alarm device and display screen, first electrode, the second electrode is connected with resistance tester's test probe through the wire respectively, resistance tester's signal output part is connected with power station LCU controller, alarm device is connected with power station LCU controller, the display screen is connected with power station LCU controller, first electrode and second electrode are configured to glue on the outer wall of pressure steel pipe in water-storage power station. The utility model is used for the condition of leaking to the non-embedding part of force steel pipe in pumped storage power station detects.
Description
Technical Field
The utility model relates to a reversible pump turbine technical field of pumped storage power station particularly, relates to a pumped storage power station ball valve penstock section monitoring devices that leaks.
Background
The pumped storage power station uses the electric power in the low load valley of the power grid to pump water from the lower reservoir to the upper reservoir for storage, and when the power grid is in the peak load, the water is discharged to the lower reservoir for power generation.
The water turbine is a power machine which converts the energy of water flow into rotary mechanical energy. The water turbines can be divided into impulse turbines and reaction turbines according to the working principle. The runner of the impulse turbine rotates under the impact of water flow, the pressure of the water flow is unchanged in the working process, and the conversion of kinetic energy is mainly carried out; the runner of the reaction type water turbine rotates under the reaction force of water flow in water, and the pressure energy and the kinetic energy of the water flow are changed in the working process, but the pressure energy is mainly converted.
The general flood peak of pumped storage power station is higher, therefore selects the ball valve as main water intaking valve, connects through penstock from the upper storage to the ball valve, does not worry the condition of leaking at the part of burying, and the non-embedding part of ball valve upper reaches section, if a large amount of leaks, probably causes the water logging factory building, if slightly leak, if not carefully observe when patrolling and examining, can be difficult to discover, cause the deterioration, therefore how to leak to ball valve penstock section and monitor is the technical problem that the skilled person needs to solve urgently.
Disclosure of Invention
The utility model discloses exactly solve the technical problem who how to detect the condition of leaking of the non-embedded part of penstock in pumped storage power station, provide a monitoring devices that leaks of pumped storage power station ball valve penstock section.
The utility model provides a pumped storage power station ball valve pressure steel pipe section monitoring devices that leaks, including first electrode, second electrode, resistance tester, power station LCU controller, alarm device and display screen, the first electrode is connected with the test probe of resistance tester through the first wire, the second electrode is connected with the test probe of resistance tester through the second wire, the signal output part of resistance tester passes through the signal line and is connected with power station LCU controller, alarm device passes through the signal line and is connected with power station LCU controller, the display screen is connected with power station LCU controller;
the first and second electrodes are configured to be bonded to an outer wall of a pressure steel tube in a pumped-hydro energy storage power station.
Preferably, the alarm device is an audible and visual alarm device.
The beneficial effects of the utility model are that, whether have the emergence of leaking through resistance value detection penstock, the condition of leaking of real-time supervision penstock to the staff in time overhauls, avoids the serious consequence that ball valve penstock leaked and leads to.
Drawings
Fig. 1 is a schematic diagram of a water leakage monitoring device for a ball valve pressure steel pipe section of a pumped storage power station.
The symbols in the drawings illustrate that:
1. the system comprises an upper reservoir, a lower reservoir, an inlet gate, a pressure steel pipe, a steel pipe pressure gauge, a ball valve, a tail water pipe, a first electrode, a second electrode, a resistance tester, a hydropower station LCU controller, an alarm device, a display screen and a second lead wire, wherein the upper reservoir is 2, the lower reservoir is 3, the inlet gate is 4, the pressure steel pipe is 5, the steel pipe pressure gauge is 6, the ball valve is 7, the tail water pipe is 8, the first lead wire is 9, the second lead wire is 10, the resistance tester is 12, the hydropower station LCU controller is 13, the alarm device is 14, and the display screen is 15.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description of the preferred embodiments with reference to the accompanying drawings.
As shown in fig. 1, the first electrode 8 is connected to a test probe of a resistance tester 12 through a first lead 10, the second electrode 9 is connected to a test probe of the resistance tester 12 through a second lead 11, a signal output end of the resistance tester 12 is connected to a hydropower station LCU controller 13 through a signal line, and the alarm device 14 is connected to the hydropower station LCU controller 13 through a signal line. The display screen 15 is connected to the hydropower station LCU controller 13.
The LCU of the hydropower station LCU controller 13 is a short name for Local Control Unit (Local Control Unit).
Preferably, the signal output end of the resistance tester 12 can output a 4-20mA analog quantity signal to the water power station LCU controller 13.
The alarm device 14 may specifically adopt an audible and visual alarm device.
The outer wall of the penstock 4 is coated with a layer of anticorrosive paint, which is insulating. The first electrode 8 and the second electrode 9 are adhered to the outer wall of the pressure steel pipe 4, and the first electrode 8 and the second electrode 9 are spaced apart by a distance of preferably 20 cm.
Under the normal water-tight condition of the non-embedded section of the penstock 4, the first electrode 8 and the second electrode 9 are in an insulating state, the resistance value detected by the resistance tester 12 is about 200M Ω, and the alarm device 14 does not send out an alarm signal at this time. If water leakage occurs, the amount of water leakage is reflected on the resistance value, and the resistance value detected by the resistance tester 12 is less than 200M Ω, and the specific resistance value is different according to the amount of water leakage, generally between 20 Ω and 1000 Ω. The display screen 15 displays the specific resistance value in real time, and the worker can judge the water leakage condition by observing the resistance value on the display screen 15.
The power station LCU controller 13 compares the resistance value detected by the resistance tester 12 with a preset threshold value, when the resistance value detected by the resistance tester 12 is smaller than the threshold value, the power station LCU controller 13 sends a signal to the alarm device 14, and the alarm device 14 sends an alarm signal to indicate that water leakage occurs. The threshold may specifically be 200M Ω, 100M Ω, 200O Ω, or the like.
When the staff finds that the pressure steel pipe leaks, the pressure steel pipe can be repaired in time by cracks and seepage, so that the condition deterioration is prevented, and the factory building is prevented from being flooded by water.
The above description is only for the purpose of illustrating preferred embodiments of the present invention and is not intended to limit the present invention, which may be modified and varied by those skilled in the art.
Claims (2)
1. A water pumping energy storage power station ball valve pressure steel pipe section water leakage monitoring device is characterized by comprising a first electrode, a second electrode, a resistance tester, a hydropower station LCU controller, an alarm device and a display screen, wherein the first electrode is connected with a test probe of the resistance tester through a first lead, the second electrode is connected with a test probe of the resistance tester through a second lead, a signal output end of the resistance tester is connected with the hydropower station LCU controller through a signal line, the alarm device is connected with the hydropower station LCU controller through a signal line, and the display screen is connected with the hydropower station LCU controller;
the first and second electrodes are configured to be bonded to an outer wall of a pressure steel tube in a pumped storage power station.
2. The pumped storage power station ball valve penstock section leakage monitoring device of claim 1, characterized in that the alarm device is a sound and light alarm device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223200178.XU CN218544051U (en) | 2022-11-28 | 2022-11-28 | Water-storage power station ball valve pressure steel pipe section monitoring devices that leaks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223200178.XU CN218544051U (en) | 2022-11-28 | 2022-11-28 | Water-storage power station ball valve pressure steel pipe section monitoring devices that leaks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218544051U true CN218544051U (en) | 2023-02-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223200178.XU Active CN218544051U (en) | 2022-11-28 | 2022-11-28 | Water-storage power station ball valve pressure steel pipe section monitoring devices that leaks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218544051U (en) |
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2022
- 2022-11-28 CN CN202223200178.XU patent/CN218544051U/en active Active
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