CN213598115U - Pumped storage unit with automatic valve opening function during phase modulation water pressing - Google Patents
Pumped storage unit with automatic valve opening function during phase modulation water pressing Download PDFInfo
- Publication number
- CN213598115U CN213598115U CN202021617099.7U CN202021617099U CN213598115U CN 213598115 U CN213598115 U CN 213598115U CN 202021617099 U CN202021617099 U CN 202021617099U CN 213598115 U CN213598115 U CN 213598115U
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- water
- phase modulation
- valve
- pressurized
- storage unit
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 153
- 238000003860 storage Methods 0.000 title claims abstract description 20
- 238000003825 pressing Methods 0.000 title description 9
- 230000008878 coupling Effects 0.000 claims abstract description 3
- 238000010168 coupling process Methods 0.000 claims abstract description 3
- 238000005859 coupling reaction Methods 0.000 claims abstract description 3
- 230000001502 supplementing effect Effects 0.000 claims description 9
- 241000237983 Trochidae Species 0.000 abstract 1
- 238000000034 method Methods 0.000 description 16
- 238000005086 pumping Methods 0.000 description 14
- 230000003111 delayed effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005188 flotation Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization 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
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
Abstract
The utility model discloses a take automatic pump storage unit who opens valve function when phase modulation pressurized-water, including motor, connecting axle, shaft coupling, pump turbine, topshell, main water intaking valve, wherein the pump turbine includes runner, spiral case, draft tube, phase modulation pressurized-water valve sets up in the draft tube side, runner and worm set up in the draft tube top, be equipped with state sensor on the phase modulation pressurized-water valve, state sensor can respond to the degree of opening of phase modulation pressurized-water valve. The utility model discloses realized the phase modulation pressurized-water valve automatic control switch's in a period function through automated control component on the existing equipment basis for its operation is more stable.
Description
Technical Field
The utility model relates to a power plant phase modulation pressurized-water energy storage equipment especially relates to a take pumped storage unit of automatic function of opening valve when phase modulation pressurized-water.
Background
According to the necessity of a pumped storage power station, the daily average pumping frequency required by a power grid is about 4 times, and the pumping phase modulation is a necessary intermediate state in the process of converting a unit from shutdown to pumping; under the phase modulation working condition, the phase modulation pressurized water device is utilized to enable the water in the draft tube to be pressed below the rotating wheel, so that the draft tube can rotate in the air, the absorption power can be reduced, and the working condition conversion time can be shortened.
The pumped storage power station of early production, have the high water level, characteristics such as equipment operation year length, defect and the problem that the production appeared so far have typicality, former pressurized-water flow single open valve lacks redundancy, when the pressurized-water keeps the stage, the phase modulation pressurized-water valve will not move, therefore the phase modulation pressurized-water valve is if not open for the first time, the action will no longer be issued to the pressurized-water flow executive process, thereby lead to the unit flow to report to the police, influence the unit steady operation, consequently, need to optimize to phase modulation pressurized-water equipment urgently. The prior art is designed based on the unit development of new production, so the prior art is not suitable for the pumped storage power station equipment which is produced in early years.
For example, the chinese patent document discloses "a phase modulation pressure water level sensor and a phase modulation pressure water level control method", and the publication No. 107063399 thereof includes: a float bowl; the floater is arranged in the floating barrel; the magnetic turning plate is arranged on the side wall of the float bowl and consists of a group of metal sheets which can be turned over, and when the float approaches the metal sheets each time, the metal sheets can be turned over and kept still; the liquid level meter is arranged on the side wall of the float bowl and comprises a plurality of contact points; the exhaust valve is arranged at the top of the buoy and used for exhausting gas remained in a pipeline of the phase modulation pressure water level sensor when the generator set exhausts and returns water; the water inlet pipeline sets up in the lower extreme side of flotation pontoon, includes: a water inlet front section, a water inlet connecting section and a water inlet rear section; the delivery port pipeline set up in the upper end side of flotation pontoon includes: a water outlet front section, a water outlet connecting section and a water outlet rear section.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a problem that the pumping storage power station phase modulation pressurized-water valve of early input is unstable work provides a pumped storage unit who takes the automatic valve function of opening when the phase modulation pressurized-water, improves the job stabilization nature of phase modulation pressurized-water valve.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a take pumped storage unit of automatic valve function of opening in phase modulation pressurized-water, includes motor, connecting axle, shaft coupling, pump turbine, top cap, main water intaking valve, and wherein pump turbine includes runner, spiral case, draft tube, phase modulation pressurized-water valve sets up in the draft tube side, runner and worm set up in the draft tube top, characterized by, be equipped with state sensor on the phase modulation pressurized-water valve, state sensor can respond to the degree of opening of phase modulation pressurized-water valve.
In order to avoid the condition that the phase-regulating water-pressurizing valve is not opened when the accidental water-pressurizing flow is executed, improve the water-pressurizing power in the water pumping phase-modulating process, reliably open the phase-regulating water-pressurizing valve when the water-pressurizing flow is executed, and arrange a state sensor to realize the function of automatically re-opening the phase-regulating water-pressurizing valve when the accidental water-pressurizing valve is not opened or blocked, namely in the process that the unit executes the step sequence of the water-pressurizing flow in the water pumping phase-modulating process, when the full-opening position feedback is not received in 4S after the phase-regulating water-pressurizing valve is opened by a command, the phase-regulating water-pressurizing valve is automatically commanded to be closed.
Preferably, the phase modulation pressure water valve is provided with a phase modulation delay switch.
In order to ensure the stable operation of the process of automatically closing and then opening the phase modulation pressure water valve, a certain time delay needs to be set, so that the phase modulation pressure water valve is automatically closed and then is opened again after a certain time.
Preferably, a phase-adjusting pressure-water air compensating valve is arranged on the side surface of the tail water pipe.
In order to make the water pressing process smoother, an aeration valve is additionally arranged.
Preferably, the phase modulation pressurized water gulp valve is connected with the phase modulation pressurized water valve in parallel.
Preferably, a water level sensor is arranged on the draft tube.
Aiming at the problem that if the pressurized water air supplement valve of the original unit does not actually act in the pressurized water maintaining stage, the phase modulation pressurized water valve cannot be actuated, so that pressurized water fails, and therefore the phase modulation pressurized water valve action logic in the pressurized water maintaining stage is optimized. In the pressurized water maintaining process, when a pressurized water air supplement valve is opened, and the tail water level is high or too high, a main pressurized water valve is opened; resetting the opening conditions of the phase-regulating water pressure valve and the pressurized water air supply valve: in the process of pressurized water maintaining, the tail water level is low, the tail water level is too low, the tail water level is off, and the pressurized water flow is switched off.
Preferably, the phase modulation pressurized water air compensation valve is provided with an air compensation delay switch.
In order to make the switch action more stable, an air supply delay switch is additionally arranged, when a pressurized water air supply valve is opened, and when the tail water level reaches high or too high, the main pressurized water valve is delayed to be opened, and when the tail water level is low, the tail water level is delayed to be closed.
Preferably, the delay time of the air supply delay switch is 2 seconds.
Through theoretical calculation and repeated actual tests, 2 seconds are found to be a proper delay time value, so that when a pressurized water air supply valve is commanded to be opened and the tail water level is high and too high, the main water pressure valve is opened within 2 seconds, and the tail water level is closed within 2 seconds in a delayed manner.
Therefore, the utility model discloses following beneficial effect has: (1) the working reliability of the phase-regulating pressure water valve is improved; (2) the method is suitable for the pumped storage power station equipment which is put into production at early stage.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure: 1. the water pump water turbine comprises a motor 2, a connecting shaft 3, a coupler 4, a top cover 5, a volute 6, a rotating wheel 7, a main water inlet valve 8, a phase modulation pressurized water valve 9, a phase modulation pressurized water gulp valve 10, a tail water pipe 11 and a water pump water turbine.
Detailed Description
Embodiment 1, as shown in fig. 1, a pumped storage unit with an automatic valve opening function during phase modulation water pressurization includes a motor 1, a connecting shaft 2, a coupler 3, a pump turbine 11, a top cover 4, and a main water inlet valve 7, where the pump turbine 11 includes a rotating wheel 6, a volute 5, a draft tube 10, and a phase modulation water pressurization valve 8, the phase modulation water pressurization valve 8 is disposed on a side surface of the draft tube 10, the rotating wheel 6 is disposed above the draft tube 10, and the phase modulation water pressurization valve 8 is provided with a state sensor, and the state sensor can sense an opening degree of the phase modulation water pressurization valve 8.
Furthermore, a phase modulation delay switch is arranged on the phase modulation water pressure valve 8.
Furthermore, a phase-regulating water-pressing air make-up valve 9 is arranged on the side surface of the tail water pipe 10.
The phase modulation working condition (the pressure water is below the rotating wheel 6) is an intermediate state which is necessary for the unit to pass through in the process of converting from the shutdown working condition to the water pumping working condition, in order to avoid the condition that the phase modulation pressure water valve 8 is not opened when the accidental pressure water flow is executed, namely when the unit performs the step sequence from the water pumping phase modulation startup to the pressure water flow, the phase modulation pressure water valve 8 is started, when the full-open position feedback is not received in 4S after the phase modulation pressure water valve 8 is started, the phase modulation pressure water valve 8 is automatically started, and the phase modulation pressure water valve 8 is started again after the time delay of 3S. Therefore, if the unit does not meet the feedback requirement within 40S executed by the first step of the water pressurizing flow, the phase modulation water pressurizing valve 8 is automatically switched on and off for 4-5 times, and the function of automatically switching on and off the phase modulation water pressurizing main valve 8 again when the accidental water pressurizing valve is not opened or is jammed is realized.
Further, a phase modulation pressure water make-up valve 9 is connected in parallel with the phase modulation pressure water valve 8.
Further, a water level sensor is provided on the draft tube 10.
Further, a phase-modulation pressurized water air-supplementing valve 9 is provided with an air-supplementing delay switch.
Further, the delay time of the air supply delay switch is 2 seconds.
After the water pumping is successful, the unit enters a water pumping maintaining stage, in the stage, if the tail water level is high or too high, the phase modulation water pumping air supplementing valve 9 is started, and when the phase modulation water pumping air supplementing valve 9 breaks down and is not started, the phase modulation water pumping air supplementing valve 8 is started after the time delay of 2S is judged through the opening command of the phase modulation water pumping air supplementing valve 9 and the tail water level is high and too high; the reset phase-regulating water pressure valve 8 and the phase-regulating water pressure air supplementing valve 9 are opened under the conditions that in the water pressure maintaining process, the tail water level is low, the action is delayed by 2S and closed, when the tail water level is too low, the action is closed, and when the water pressure flow conversion occurs, the action is closed, so that the automatic on-off control of the phase-regulating water pressure valve 8 and the phase-regulating water pressure air supplementing valve 9 in the water pressure maintaining process is realized. By the method, the automatic valve opening and water pressing function of the pumped storage unit under the phase modulation working condition can be realized, unit flow alarming and even water pressing failure caused by the fact that the original water pressing flow is lack of redundancy in a single valve opening mode are avoided, and the phase modulation water pressing valve 8 is opened more reliably in the water pressing process.
Claims (7)
1. The utility model provides a take pumped storage unit of automatic valve function of opening in phase modulation pressurized-water, includes motor, connecting axle, shaft coupling, pump turbine, top cap, main water intaking valve, and wherein pump turbine includes runner, spiral case, draft tube, phase modulation pressurized-water valve sets up in the draft tube side, runner and worm set up in the draft tube top, characterized by, be equipped with state sensor on the phase modulation pressurized-water valve, state sensor can respond to the degree of opening of phase modulation pressurized-water valve.
2. The pumped storage unit with the function of automatically opening the valve during phase modulation water pressurization as claimed in claim 1, wherein the phase modulation water pressurization valve is provided with a phase modulation time delay switch.
3. The pumped storage unit with the function of automatically opening the valve during phase modulation water pressurization as claimed in claim 2, wherein a phase modulation water pressurization air replenishing valve is arranged on the side surface of the tail water pipe.
4. The pumped storage unit with the function of automatically opening the valve during phase modulation water pressure as claimed in claim 3, wherein the phase modulation water pressure water supplementing valve is connected in parallel with the phase modulation water pressure valve.
5. The pumped storage unit with the function of automatically opening the valve during phase modulation pressurized water according to claim 4, wherein a water level sensor is arranged on the tail water pipe.
6. The pumped storage unit with the function of automatically opening the valve during phase modulation and water pressurization as claimed in claim 5, wherein a gas supplementing delay switch is arranged on the phase modulation and water pressurization gas supplementing valve.
7. The pumped-storage unit with the function of automatically opening the valve during phase modulation and water pressurization as claimed in claim 6, wherein the delay time of the air-supply delay switch is 2 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021617099.7U CN213598115U (en) | 2020-08-06 | 2020-08-06 | Pumped storage unit with automatic valve opening function during phase modulation water pressing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021617099.7U CN213598115U (en) | 2020-08-06 | 2020-08-06 | Pumped storage unit with automatic valve opening function during phase modulation water pressing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213598115U true CN213598115U (en) | 2021-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021617099.7U Active CN213598115U (en) | 2020-08-06 | 2020-08-06 | Pumped storage unit with automatic valve opening function during phase modulation water pressing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213598115U (en) |
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2020
- 2020-08-06 CN CN202021617099.7U patent/CN213598115U/en active Active
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