CN213928609U - Self-circulation full-automatic hub pressure maintaining oil system of large bulb turbine unit - Google Patents
Self-circulation full-automatic hub pressure maintaining oil system of large bulb turbine unit Download PDFInfo
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- CN213928609U CN213928609U CN202022091191.0U CN202022091191U CN213928609U CN 213928609 U CN213928609 U CN 213928609U CN 202022091191 U CN202022091191 U CN 202022091191U CN 213928609 U CN213928609 U CN 213928609U
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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
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Abstract
The utility model discloses a full-automatic wheel hub pressurize oil system of large-scale bulb through-flow unit self-loopa comprises bulb through-flow unit, oil receiver, oil collecting device, oil return tank, high-pressure oil tank, speed regulator, wheel hub high-order oil tank, oil supplementing valve, oil receiver oil leakage pipe, high-pressure oil pipe, oil spilling pipe, the manual oil extraction valve of wheel hub high-order oil tank, wheel hub pressurize oil pipe and oil leaking pump. The whole bulb turbine set is arranged in a flow channel, an oil receiver and an oil leakage pipe of the oil receiver are positioned in a bulb head of the bulb turbine set, an oil collecting device is positioned in a gallery at the lower part of a runner chamber of the bulb turbine set, an oil supplementing valve, a high-pressure oil tank, a speed regulator and an oil return tank are positioned at the 58m height of a main workshop, a hub high-level oil tank and a manual oil discharge valve of the hub high-level oil tank are positioned at the 65.15m height of the main workshop, and a high-pressure oil pipe and a hub pressure maintaining oil pipe are distributed in the whole factory. The utility model discloses a can realize the full automatic cycle of wheel hub pressure maintaining oil, can effectively reduce the operation maintenance work load, improve unit safe operation reliability, reduce the station service rate of utilization.
Description
Technical Field
The utility model relates to a full-automatic wheel hub pressurize oil system of large-scale bulb through-flow unit self-loopa belongs to hydroelectric power generation technical field.
Background
The bulb through-flow unit is generally provided with a hub high-level oil tank for providing pressure-maintaining oil with a certain pressure in the hub body. The hub pressure maintaining oil system commonly used in the bulb tubular set at present is characterized in that a high-pressure oil tank of a speed regulator is used for supplementing oil to a hub high-level oil tank (the oil level of the hub high-level oil tank has no special requirement and only needs to be always oil in the oil tank), the hub high-level oil tank supplies oil to an oil receiver, the oil receiver leaks oil to an oil collecting device, then the oil collecting device pumps the oil to an oil return tank, and turbine oil in the oil return tank enters the high-pressure oil tank after being pressurized by a pressure oil pump.
The oil circulation system is suitable for a unit with small oil leakage, but for a large bulb type tubular turbine unit with large oil leakage, the oil supplementing operation of a high-level oil tank of a hub is frequent, a pressure oil pump of a speed regulator needs to be frequently started to supplement and maintain the oil pressure of the high-pressure oil tank, the service lives of equipment such as the oil pump and a valve are shortened due to frequent starting and operation, the service power consumption is increased, and the operation and maintenance workload is greatly increased for a power station with multiple units.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a large-scale bulb turbine unit self-loopa full-automatic wheel hub pressurize oil system to solve the technical problem such as operation maintenance work load is big, the power consumption is big, equipment life is not long.
The utility model discloses an overall thinking is:
because the through-flow unit has larger oil leakage, the wheel hub high-level oil tank is supplemented with oil by the previous high-pressure oil tank instead of the unit oil collecting device, and oil overflowing pipes are added to ensure that the supplemented oil automatically flows into the oil returning tank so as to ensure that the oil level in the wheel hub high-level oil tank is kept stable.
The technical scheme of the utility model is that:
a self-circulation full-automatic hub pressure-maintaining oil system of a large bulb turbine unit comprises the bulb turbine unit, an oil receiver, an oil collecting device, an oil return tank, a high-pressure oil tank, a speed regulator, a hub high-level oil tank, an oil supplementing valve, an oil leakage pipe of the oil receiver, a high-pressure oil pipe, an oil overflow pipe, a manual oil discharge valve of the hub high-level oil tank, a hub pressure-maintaining oil pipe and an oil leakage pump.
The whole machine of the bulb turbine unit is arranged in the flow channel, the oil leakage pipe of the oil receiver and the oil receiver is located in a bulb head of the bulb turbine unit, the oil collecting device is located in a first elevation gallery at the lower part of a runner chamber of the bulb turbine unit, the oil supplementing valve, the high-pressure oil tank, the speed regulator and the oil return tank are located in a second elevation part of a main plant, the hub high-level oil tank and the manual oil discharge valve of the hub high-level oil tank are located on a main plant gallery layer at a third elevation, and the high-pressure oil pipe and the hub pressure maintaining oil pipe are distributed in the whole plant.
The high-pressure oil pipe is connected with the oil receiver and the speed regulator, and the hub pressure maintaining oil pipe is connected with the hub high-level oil tank and the oil receiver; oil respectively enters the oil receiver from the speed regulator through the high-pressure oil pipe and from the hub high-level oil tank through the hub pressure maintaining oil pipe from top to bottom, and is subjected to the oil receiver to realize control on the blades of the unit and pressure maintaining in the hub body.
The oil supplementing valve, the oil overflow pipe and the manual oil discharge valve of the hub high-level oil tank are all arranged between the oil return tank and the hub high-level oil tank.
The oil leakage pipe of the oil receiver is connected with an oil collecting device, and the oil leakage pump is connected with a hub high-level oil tank through a pipeline.
The speed regulator is mainly used for load regulation of the unit, and realizes control of guide vanes and blades of the unit by converting an electric control signal into a hydraulic signal; the oil receiver is a part of the speed regulator and is provided with a high-pressure cavity and a low-pressure cavity, the high-pressure cavity transmits high-pressure oil to an operating oil pipe of the rotating shaft to realize control over the blades, and the low-pressure cavity is connected with a high-level oil tank of the hub through a hub pressure maintaining oil pipe to convey low-pressure oil into the hub for pressure maintaining; the hub high-level oil tank is arranged at a 65.15-level position of a factory building and provides turbine oil with certain pressure in the hub body; the oil collecting device is mainly used for collecting oil leakage of the speed regulator and the bearing lubricating oil system.
The utility model discloses a theory of operation is:
after the speed regulator receives an electric signal, the speed regulator controls the action of a main pressure distributing valve of the speed regulator, a high-pressure oil tank 5 is communicated with a high-pressure oil pipe of the speed regulator, high-pressure oil enters a servomotor in a hub body after passing through a high-pressure cavity of an oil receiver to realize the control of a unit blade, part of leaked oil enters an oil collecting device through an oil leakage pipe of the oil receiver in the control process, a high-level oil tank of the hub is connected with a low-pressure cavity of the oil receiver through a pressure-preserving oil pipe of the hub, so that the hub body is filled with turbine oil with certain pressure, and part of the turbine oil also leaks into the oil collecting device which directly pumps the leaked oil into the high-level oil tank of the hub and does not return the leaked oil to an oil tank; the novel oil spilling pipe that installs additional at wheel hub high-order oil tank top links to each other with speed regulator oil return tank, when wheel hub high-order oil tank oil level is too high, when reacing the oil spilling pipe mouth of pipe, unnecessary turbine oil is through the automatic oil drain of oil spilling pipe to speed regulator oil return tank, need not manually open the manual oil drain valve of wheel hub high-order oil tank and arrange the oil, turbine oil in the oil return tank squeezes into in the high-pressure oil tank through the pressure oil pump, when the speed regulator moves once more, high-pressure oil in the high-pressure oil tank gets into the high-pressure chamber of oil receiver once more, partial oil leak can get into oil collecting device once more with 2 low-pressure chamber oil leaks of oil receiver once more, oil collecting device squeezes oil into wheel hub.
The utility model has the advantages that:
the utility model discloses a large-scale bulb through-flow unit pressurize oil system can realize the full automatic cycle operation function of wheel hub pressurize oil system, can effectively reduce the operation maintenance work load, improves unit safe operation reliability, and energy saving and emission reduction reduces the station service rate of utilization simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The device comprises a bulb turbine set 1, an oil receiver 2, an oil collecting device 3, an oil return tank 4, a high-pressure oil tank 5, a speed regulator 6, a hub high-level oil tank 7, an oil supplementing valve 8, an oil leakage pipe 9 of the oil receiver, an oil way pipeline 10, an oil overflow pipe 11, a hub high-level oil tank manual oil discharge valve 12, a hub pressure maintaining oil pipe 13 and an oil leakage pump 14.
Detailed Description
As shown in figure 1, the self-circulation full-automatic hub pressure maintaining oil system of the large-scale bulb turbine unit mainly comprises the self-circulation full-automatic hub pressure maintaining oil system, wherein the self-circulation full-automatic hub pressure maintaining oil system comprises a bulb turbine unit 1, an oil receiver 2, an oil collecting device 3, an oil return tank 4, a high-pressure oil tank 5, a speed regulator 6, a hub high-level oil tank 7, an oil supplementing valve 8, an oil leakage pipe 9 of the oil receiver, a high-pressure oil pipe 10, an oil overflow pipe 11, a hub high-level oil tank manual oil discharge valve 12, a hub pressure maintaining oil pipe 13, an oil leakage pump 14 and the like.
1 complete machine of bulb turbine unit arranges in the runner, and oil receiver 2, oil receiver oil leak pipe 9 are located the unit bubble head, and oil collecting device 3 is located unit runner room lower part 26.6m corridor, and oil supplementing valve 8, high-pressure oil tank 5, speed regulator 6, oil return tank 4 are located main factory building 58m elevation, and wheel hub high-order oil tank 7, the manual oil drain valve 12 of wheel hub high-order oil tank are located factory building 65.15m elevation main corridor layer, and high-pressure oil pipe 10, wheel hub pressurize oil pipe 13 distribute in whole factory.
The speed regulator 6 is mainly used for regulating the load of the unit, and realizes the control of guide vanes and blades of the unit by converting an electric control signal into a hydraulic signal; the oil receiver 2 is a part of the speed regulator 6 and is provided with a high-pressure cavity and a low-pressure cavity, the high-pressure cavity transmits high-pressure oil into an operating oil pipe of the rotating shaft to realize control of the paddle, and the low-pressure cavity is connected with a hub high-level oil tank 7 through a hub pressure maintaining oil pipe 13 and conveys low-pressure oil into the hub for pressure maintaining; the hub high-level oil tank 7 is arranged at the 65.15-level position of a factory building and provides turbine oil with certain pressure in the hub body; the oil collecting device 3 mainly collects oil leakage of the speed regulator 6 and a bearing lubricating oil system.
The oil receiver 2 is a special device of a double-adjusting water turbine, is arranged in a bulb body in front of a generator, and is mainly used for introducing pressure oil of the speed regulator 6 into a rotating operation oil pipe from a fixed oil pipe and transmitting the pressure oil to the paddle servomotor to timely and effectively adjust the opening degree of the paddle, so that the water turbine generator set is always in stable operation under the cooperative working condition.
The oil collecting device 3 mainly collects leaked oil of the speed regulator and a bearing lubricating oil system, and when the oil level in the oil collecting device 3 reaches a certain value, the oil leakage pump 14 is started to pump the oil into the hub high-level oil tank 7.
The oil return tank 4, the high-pressure oil tank 5 and the speed regulator 6 are complete equipment, and the rotating speed of the unit is controlled within a specified range in real time by controlling the opening of guide vanes and blades of the unit.
The oil supplementing valve 8, the oil overflow pipe 11 and the manual oil discharge valve 12 of the hub high-level oil tank are all arranged between the oil return tank 4 and the hub high-level oil tank 7.
The high-pressure oil pipe 10 is connected with the oil receiver 2 and the speed regulator 6, and the hub pressure maintaining oil pipe 13 is connected with the hub high-level oil tank 7 and the oil receiver 2.
The utility model discloses a full-automatic wheel hub pressurize oil system of self-loopa each component's the monolithic connection relation is: oil respectively enters the oil receiver 2 from the speed regulator 6 and the hub high-level oil tank 7 from top to bottom through the high-pressure oil pipe 10 and the hub pressure maintaining oil pipe 13, and is subjected to the oil receiver 2 to realize control of the unit blades and pressure maintaining in the hub body. And part of the leaked oil enters the oil collecting device 3 through an oil leakage pipe 9 of the oil receiver, and is pumped to the hub high-level oil tank 7 by an oil leakage pump 14, so that oil circulation is completed.
When the unit oil leakage volume is great, for example when being greater than the oil mass of wheel hub pressurize consumption, because of wheel hub high-order oil tank 7 capacity is less, need often manually open wheel hub high-order oil tank manual oil extraction valve 12 and arrange unnecessary fluid into oil return tank 4 (oil return tank is bulky), waste time and energy, be unfavorable for one person to watch on duty, and the oil extraction valve operation number of times is too much, has the damage risk.
Therefore, a stainless steel oil spilling pipe 11 with DN50 and PN10MPa is added between the hub high-level oil tank 7 and the oil return tank 4, when the oil filling amount of the oil collecting device 3 to the hub high-level oil tank 7 is larger than the pressure maintaining oil consumption amount of the hub, the oil level of the hub high-level oil tank 7 reaches the pipe orifice of the oil spilling pipe, the redundant turbine oil is automatically discharged into the oil return tank without manually operating the manual oil discharging valve 12 of the hub high-level oil tank, and the oil finally automatically returns to the oil return tank 4 and the hub high-level oil tank 7 regardless of the total oil leaking amount of the unit, so that the automatic circulation of the oil is realized without manual operation.
In the specific implementation, 40 m DN50 and PN10MPa stainless steel pipes, 2 pairs of DN50 and PN10MPa stainless steel flanges and matched bolts are needed.
Claims (6)
1. The utility model provides a full-automatic wheel hub pressurize oil system of large-scale bulb turbine unit self-loopa which characterized in that:
the self-circulation full-automatic hub pressure maintaining oil system consists of a bulb turbine set (1), an oil receiver (2), an oil collecting device (3), an oil return tank (4), a high-pressure oil tank (5), a speed regulator (6), a hub high-level oil tank (7), an oil supplementing valve (8), an oil leakage pipe (9) of the oil receiver, a high-pressure oil pipe (10), an oil overflow pipe (11), a manual oil discharge valve (12) of the hub high-level oil tank, a hub pressure maintaining oil pipe (13) and an oil leakage pump (14);
the whole bulb turbine set (1) is arranged in a flow channel, an oil receiver (2) and an oil leakage pipe (9) of the oil receiver are positioned in a bulb head of the bulb turbine set (1), an oil collecting device (3) is positioned in a first elevation gallery at the lower part of a runner chamber of the bulb turbine set (1), an oil supplementing valve (8), a high-pressure oil tank (5), a speed regulator (6) and an oil return tank (4) are positioned at a second elevation of a main plant, a hub high-level oil tank (7) and a hub high-level oil tank manual oil discharge valve (12) are positioned on a main plant gallery layer at a third elevation of the main plant, and a high-pressure oil pipe (10) and a hub pressure maintaining oil pipe (13) are distributed in the whole plant;
the high-pressure oil pipe (10) is connected with the oil receiver (2) and the speed regulator (6), and the hub pressure maintaining oil pipe (13) is connected with the hub high-level oil tank (7) and the oil receiver (2); oil liquid respectively enters the oil receiver (2) from the top to the bottom from the speed regulator (6) through the high-pressure oil pipe (10) and from the hub high-level oil tank (7) through the hub pressure-maintaining oil pipe (13), and is subjected to the oil receiver (2) to realize the control of the unit blades and the pressure maintaining in the hub body;
the oil supplementing valve (8), the oil overflow pipe (11) and the manual oil drain valve (12) of the hub high-level oil tank are all arranged between the oil return tank (4) and the hub high-level oil tank (7);
the oil leakage pipe (9) of the oil receiver is connected with the oil collecting device (3), and the oil leakage pump (14) is connected with the hub high-level oil tank (7) through a pipeline.
2. The self-circulation full-automatic hub pressure maintaining oil system of the large bulb turbine unit according to claim 1, characterized in that:
the oil receiver (2) is a part of the speed regulator (6) and is provided with a high-pressure cavity and a low-pressure cavity, and the high-pressure cavity transmits high-pressure oil into an operating oil pipe of the rotating shaft to realize control over the blades; the low-pressure cavity is connected with a hub high-level oil tank (7) through a hub pressure-maintaining oil pipe (13) to convey low-pressure oil into the hub for pressure maintaining.
3. The self-circulation full-automatic hub pressure maintaining oil system of the large bulb turbine unit according to claim 1, characterized in that:
the first elevation is at 26.6m below the wheel well.
4. The self-circulation full-automatic hub pressure maintaining oil system of the large bulb turbine unit according to claim 1, characterized in that:
the second elevation is located at the 58m elevation of the main building.
5. The self-circulation full-automatic hub pressure maintaining oil system of the large bulb turbine unit according to claim 1, characterized in that:
the third elevation is at the elevation of 65.15m of the main building.
6. The large bulb turbine self-circulation full-automatic hub pressure maintaining oil system according to any one of claims 1 to 5, wherein:
the oil overflow pipe (11) is a stainless steel pipe with DN50 and PN10 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022091191.0U CN213928609U (en) | 2020-09-22 | 2020-09-22 | Self-circulation full-automatic hub pressure maintaining oil system of large bulb turbine unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022091191.0U CN213928609U (en) | 2020-09-22 | 2020-09-22 | Self-circulation full-automatic hub pressure maintaining oil system of large bulb turbine unit |
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| CN213928609U true CN213928609U (en) | 2021-08-10 |
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| CN202022091191.0U Withdrawn - After Issue CN213928609U (en) | 2020-09-22 | 2020-09-22 | Self-circulation full-automatic hub pressure maintaining oil system of large bulb turbine unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112128039A (en) * | 2020-09-22 | 2020-12-25 | 桑河二级水电有限公司 | Self-circulation full-automatic hub pressure maintaining oil system of large bulb turbine unit |
-
2020
- 2020-09-22 CN CN202022091191.0U patent/CN213928609U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112128039A (en) * | 2020-09-22 | 2020-12-25 | 桑河二级水电有限公司 | Self-circulation full-automatic hub pressure maintaining oil system of large bulb turbine unit |
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Granted publication date: 20210810 Effective date of abandoning: 20220805 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20210810 Effective date of abandoning: 20220805 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |