CN215293303U - High-pressure oil jacking device with cooling tile temperature function - Google Patents
High-pressure oil jacking device with cooling tile temperature function Download PDFInfo
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- CN215293303U CN215293303U CN202120810415.0U CN202120810415U CN215293303U CN 215293303 U CN215293303 U CN 215293303U CN 202120810415 U CN202120810415 U CN 202120810415U CN 215293303 U CN215293303 U CN 215293303U
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model relates to a generating motor thrust device field is difficult to the problem of cooling in to current generating motor unit thrust axle bush working process, discloses a high-pressure oil jacking device of area cooling tile temperature function, including a plurality of thrust axle bushes, be equipped with logical oil cavity in the thrust axle bush, thrust axle bush surface is equipped with high-pressure inlet port and high-pressure oil outlet, leads to oil cavity intercommunication high-pressure inlet port and high-pressure oil outlet, and thrust axle bush bottom is equipped with the reference column. When the temperature of the thrust bearing bush of the generator motor of the unit rises to a set alarm value, the high-pressure oil pump arranged on the unit can be automatically started to inject cooling oil to the surface of the thrust bearing bush, so that the thickness of the oil film on the surface of the thrust bearing bush and the flow of the cooling oil flowing through the surface of the thrust bearing bush in the rotating process are increased, the temperature of the thrust bearing bush is reduced, and the thrust bearing bush is ensured to operate within a normal temperature range during long-time and full-load operation of the unit.
Description
Technical Field
The utility model belongs to the technical field of generator motor thrust unit and specifically relates to a high pressure oil jacking device of area cooling tile temperature function is related to.
Background
The generator motor in the pumped storage power station is a unit with a vertical shaft and a half umbrella structure, the large shaft of the generator motor is directly connected with a pump turbine, and the whole weight of the unit is supported by a thrust bearing bush positioned on a lower frame. The thrust bearing bush of the unit is provided with a set of high-pressure oil jacking device, and high-pressure oil is injected to the surface of the thrust bearing bush when the unit is normally started or stopped, so that an oil film is established between the thrust bearing bush and a mirror plate of a generator motor, and the thrust bearing bush is prevented from being damaged by dry grinding. When the unit normally rotates, the thrust bearing oil cooling system is cooled in a mirror plate pump external circulation mode. The thickness of the oil film of the thrust bearing bush and the size of the cooling oil flow play a vital role in cooling the thrust bearing bush.
In a high-temperature period in summer, the water temperatures of an upper reservoir and a lower reservoir are higher, cooling water of all parts of the unit comes from the lower reservoir, the higher water temperature reduces the cooling effect of the unit, the high temperature alarm of the thrust bearing bush of the unit is easily caused, and the normal operation of the unit is influenced. Especially, during the summer period of meeting the peak, the unit needs high strength operation, and the high warning of thrust axle bush temperature has seriously reduced the long-time operation ability of unit, consequently needs to optimize thrust axle bush oil cooling system urgently.
The utility model provides a "high-pressure oil jacking device for jacking" that discloses on chinese patent literature, its bulletin number CN202021682816.4, the utility model discloses a high-pressure oil jacking device for jacking, including shell and high-pressure oil pump, inside grease inlet chamber, treatment chamber and the equipment room of including of shell, the treatment chamber is equipped with two, all install the intercommunication valve on the baffle at grease inlet chamber and two treatment chamber middle parts, two the treatment chamber inner structure is the same, be close to grease inlet chamber one side in the treatment chamber and install the filter screen, be equipped with the clearance mechanism that carries out the clearance to the filter screen in the treatment chamber, keep away from grease inlet chamber one side in the treatment chamber and be equipped with and carry out refrigerated cooling body to high-pressure oil, high-pressure oil pump is equipped with two and installs respectively in the indoor bottom both sides of equipment, two install the mechanism of going into oil on the high-pressure oil pump.
The cooling function of the equipment is only the cooling of the oil pump, and the cooling link of the thrust bearing bush is not involved.
SUMMERY OF THE UTILITY MODEL
The utility model relates to an overcome the problem that is difficult to the cooling in the current generating motor unit thrust axle bush working process, a high pressure oil jacking device of area cooling tile temperature function is provided, when the generating motor thrust axle bush temperature of unit rises to the alarm value of settlement, the high-pressure oil pump of its outfit can automatic start, pour into the coolant oil into thrust axle bush surface, increase and rotate the coolant oil flow on in-process thrust axle bush surface oil film thickness and the flow through thrust axle bush surface, thereby reduce thrust axle bush tile temperature, guarantee that the unit is long-time, thrust axle bush operation is at normal temperature range during full load operation.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a high-pressure oil jacking device of area cooling tile temperature function, includes a plurality of thrust axle bushes, is equipped with logical oily cavity in the thrust axle bush, and thrust axle bush surface is equipped with high-pressure inlet port and high-pressure oil outlet, leads to oily cavity intercommunication high-pressure inlet port and high-pressure oil outlet, and thrust axle bush bottom is equipped with the reference column.
The high-pressure oil jacking device with the cooling bush temperature function applied to the pumped storage unit further comprises a thrust bearing bush, a lower oil guide basin, a thrust external circulation oil cooler, a high-pressure oil pump, a high-pressure oil ring pipe and the like. Under normal conditions, when the unit runs, the thrust bearing bush oil cooling system adopts a mirror plate pump external circulation mode, and cooling oil enters between the upper surface of the thrust bearing bush and the mirror plate from the oil inlet edge of the thrust bearing bush; in order to optimize the cooling effect of the thrust bearing bush oil cooling system, when the unit operates in a power generation steady-state working condition or a water pumping steady-state working condition, a new thrust bearing bush temperature high alarm is added to start a high-pressure oil pump control logic, high-pressure oil is injected from a central oil injection hole of the thrust bearing bush, the thickness of an oil film and the flow of the cooling oil on the surface of the thrust bearing bush are increased, and therefore the temperature of the thrust bearing bush during the operation of the unit is reduced, and the normal operation of the unit is guaranteed. When the unit is in a shutdown state, the weight of the generator is on the thrust bearing bush, before the unit is started, the high-pressure oil pump pumps oil to the oil inlet hole of the thrust bearing bush, and an oil film is established on the surface of the thrust bearing bush.
The utility model discloses well reference column is used for the fixed thrust axle bush in location, and high pressure oil gets into the thrust axle bush from the high pressure inlet port in, through the logical oily cavity of the inside, goes out oil from the high pressure oil outlet again, through the circulation of low temperature high pressure oil, comes jack-up generator mirror plate to reduce the temperature of thrust axle bush simultaneously.
Preferably, the oil pump further comprises a high-pressure oil ring pipe, the high-pressure oil ring pipe is connected with a high-pressure soft oil pipe, and the high-pressure soft oil pipe is communicated with the high-pressure oil pump.
Preferably, a thrust bearing bush oil inlet hose is arranged between a high-pressure oil inlet hole of the thrust bearing bush and the high-pressure oil ring pipe, and the thrust bearing bush oil inlet hose is connected with the high-pressure oil ring pipe through a three-way valve.
The high-pressure oil ring pipe can provide the fuel feeding transportation for each thrust bearing bush, and the bearing bush oil inlet hose is responsible for carrying the high-pressure oil for the thrust bearing bush that corresponds, and the three-way valve can be fine again when each section high-pressure oil ring pipe of intercommunication guarantee the high-pressure oil supply of thrust bearing bush.
Preferably, the high-pressure oil inlet hole is positioned at the bottom of the outer side surface of the thrust bearing bush, and the high-pressure oil outlet hole is positioned on the upper surface of the thrust bearing bush.
The high-pressure oil inlet hole is located at the bottom of the outer side face of the thrust bearing bush, the high-pressure oil can greatly increase the staying path of high-pressure oil in the thrust bearing bush, and the high-pressure oil outlet hole is located on the upper surface of the thrust bearing bush and can achieve the purpose of jacking for better pushing the generator mirror plate to move upwards.
Preferably, a pipe clamp is arranged between the three-way valves on the high-pressure oil ring pipe.
The pipe clamp can play a better fixed role in the high-pressure oil ring pipe, prevent the high-pressure oil ring pipe from outwards extending to occupy space, and also can prevent the high-pressure oil ring pipe from being bent to influence the transportation efficiency of high-pressure oil.
Preferably, the upper surface of the thrust bearing bush is also provided with a thrust groove, and the high-pressure oil outlet hole is positioned in the middle of the thrust groove.
Preferably, the thrust bearing shoes upper surface contacts the generator mirror plate.
The thrust groove is arranged to increase the buffer area of the oil outlet, so that the upward thrust of high-pressure oil is increased, the generator runner plate can be better pushed to move upwards, and finally an oil film can be better established on the surface of the thrust bearing bush.
Preferably, a check valve is arranged between the thrust bearing bush oil inlet hose and the high-pressure oil inlet hole.
The high-pressure oil can be well prevented from flowing to the thrust bearing bush oil inlet hose from the thrust bearing bush, the directional flow of the high-pressure oil is guaranteed to a large extent, and the effective cooling effect is achieved.
Preferably, the thrust bearing pads are arranged in a circular ring.
Preferably, the positioning column is located in the middle of the inner ring and the outer ring of the bottom of the thrust bearing bush, and the positioning column is connected with the fixed base.
Therefore, the utility model discloses following beneficial effect has:
(1) the high-pressure oil jacking device with the cooling bush temperature function is provided, when the temperature of a thrust bearing bush of a generator motor of a unit rises to a set alarm value, a high-pressure oil pump arranged on the high-pressure oil jacking device can be automatically started, and cooling oil is injected to the surface of the thrust bearing bush to realize effective generator pushing and thrust bearing bush temperature reduction;
(2) the thickness of the oil film on the surface of the thrust bearing bush and the flow of cooling oil flowing through the surface of the thrust bearing bush in the rotating process are increased, so that the temperature of the thrust bearing bush is reduced, and the thrust bearing bush is ensured to operate in a normal temperature range during long-time and full-load operation of a unit;
(3) the thrust grooves are arranged around the high-pressure oil outlet hole in the upper surface of the thrust bearing bush, so that the buffering area of the oil outlet hole can be increased, the upward thrust of high-pressure oil is increased, the generator mirror plate can be better pushed to move upwards, and finally an oil film can be better established on the surface of the thrust bearing bush.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. a high-pressure soft oil pipe; 2. a thrust bearing bush; 3. a high-pressure oil outlet hole; 4. a high pressure oil inlet hole; 5. a thrust bearing bush oil inlet hose; 6. a pipe clamp; 7. a three-way valve; 8. a high-pressure oil ring pipe; 9. a check valve; 10. and a positioning column.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description.
Example 1
As shown in figure 1, the high-pressure oil jacking device with the cooling bush temperature function comprises a plurality of thrust bearing bushes 2, oil through cavities are arranged in the thrust bearing bushes 2, high-pressure oil inlet holes 4 and high-pressure oil outlet holes 3 are formed in the surfaces of the thrust bearing bushes 2, the oil through cavities are communicated with the high-pressure oil inlet holes 4 and the high-pressure oil outlet holes 3, and positioning columns 10 are arranged at the bottoms of the thrust bearing bushes 2. The oil pump further comprises a high-pressure oil ring pipe 8, wherein the high-pressure oil ring pipe 8 is connected with the high-pressure soft oil pipe 1, and the high-pressure soft oil pipe 1 is communicated with a high-pressure oil pump. And a thrust bearing bush oil inlet hose 5 is arranged between a high-pressure oil inlet hole 4 of the thrust bearing bush 2 and a high-pressure oil ring pipe 8, and the thrust bearing bush oil inlet hose 5 is connected with the high-pressure oil ring pipe 8 through a three-way valve 7. The high-pressure oil inlet hole 4 is positioned at the bottom of the outer side surface of the thrust bearing bush 2, and the high-pressure oil outlet hole 3 is positioned on the upper surface of the thrust bearing bush 2. And a pipe clamp 6 is arranged between the three-way valves 7 on the high-pressure oil ring pipe 8. The upper surface of the thrust bearing bush 2 is also provided with a circular thrust groove 11, and the high-pressure oil outlet hole 3 is positioned in the middle of the thrust groove 11. The upper surface of the thrust bearing bush 2 is contacted with a generator mirror plate. A check valve 9 is arranged between the thrust bearing bush oil inlet hose 5 and the high-pressure oil inlet hole 4. The thrust bearing bushes 2 are arranged in a circular ring shape. The positioning column 10 is located in the middle of the inner ring and the outer ring at the bottom of the thrust bearing bush 2, and the positioning column 10 is connected with the fixed base.
Dynamic description: a high-pressure oil jacking device with a cooling bush temperature function is characterized in that oil in a cooling oil pipeline of a thrust bearing bush is pressurized by a high-pressure oil injection pump, then is delivered to a high-pressure oil inlet hole of the thrust bearing bush through a high-pressure oil hose, and is injected between the thrust bearing bush and a mirror plate of a generating motor through a high-pressure oil outlet hole between contact surfaces of the thrust bearing bush and the mirror plate of the generating motor. During the unit power generation operating mode or the operating mode of drawing water, when the too high warning of thrust tile temperature appears, start high-pressure oiling pump, inject thrust bearing bush and generating motor mirror plate contact surface with the coolant oil, increase the coolant oil stream to play the effect of cooling thrust bearing bush. The power generation working condition and the water pumping working condition are working conditions that the unit needs to keep running for a long time, and when the temperature of any one of the thrust pads of the power generation motor is higher than an alarm value or the temperature of any one of the thrust pad temperature controllers outputs a high-temperature alarm signal, the control logic immediately sends a command to start the high-pressure oil injection pump. The high-pressure oil injection pump pumps oil in the thrust cooling oil pipeline into the high-pressure oil inlet hole, the high-pressure oil reaches a position between the thrust bearing bush and the generator mirror plate through the oil through cavity and the high-pressure oil outlet hole, the thickness of the oil film on the surface of the thrust bearing bush and the flow of the cooling oil flowing through the surface of the thrust bearing bush are increased, and therefore the temperature of the thrust bearing bush is reduced.
The embodiment is simple and practical, the input cost is low, the cooling effect of the thrust bearing bush is good, and the thrust bearing bush has good working stability. The high-strength operation capacity of the unit is improved, and the operation reliability of the unit is improved.
Claims (10)
1. The utility model provides a high-pressure oil jacking device of area cooling tile temperature function, characterized by includes a plurality of thrust axle bush (2), is equipped with logical oily cavity in thrust axle bush (2), and thrust axle bush (2) surface is equipped with high-pressure inlet port (4) and high-pressure oil outlet (3), leads to oily cavity intercommunication high-pressure inlet port (4) and high-pressure oil outlet (3), and thrust axle bush (2) bottom is equipped with reference column (10).
2. The high-pressure oil jacking device with the cooling tile temperature function according to claim 1, further comprising a high-pressure oil ring pipe (8), wherein the high-pressure oil ring pipe (8) is connected with a high-pressure soft oil pipe (1), and the high-pressure soft oil pipe (1) is communicated with a high-pressure oil pump.
3. The high-pressure oil jacking device with the cooling bush temperature function according to claim 2, wherein a thrust bush oil inlet hose (5) is arranged between a high-pressure oil inlet hole (4) of the thrust bush (2) and the high-pressure oil ring pipe (8), and the thrust bush oil inlet hose (5) is connected with the high-pressure oil ring pipe (8) through a three-way valve (7).
4. The high-pressure oil jacking device with the cooling and heating function of claim 3, wherein the high-pressure oil inlet hole (4) is formed in the bottom of the outer side face of the thrust bearing bush (2), and the high-pressure oil outlet hole (3) is formed in the upper surface of the thrust bearing bush (2).
5. A high pressure oil jacking device with a cooling and temperature-covering function according to claim 3, characterized in that a pipe clamp (6) is arranged between three-way valves (7) on the high pressure oil ring pipe (8).
6. The high-pressure oil jacking device with the cooling and heating functions as claimed in claim 1 or 4, wherein the upper surface of the thrust bearing bush (2) is further provided with a thrust groove (11), and the high-pressure oil outlet hole (3) is located in the middle of the thrust groove (11).
7. The high-pressure oil jacking device with the cooling and heating function as claimed in claim 6, wherein the upper surface of the thrust bearing bush (2) is in contact with the generator mirror plate.
8. The high-pressure oil jacking device with the cooling and bearing bush temperature function as claimed in claim 3, wherein a check valve (9) is arranged between the thrust bearing bush oil inlet hose (5) and the high-pressure oil inlet hole (4).
9. The high-pressure oil jacking device with the cooling and heating functions as claimed in claim 6, wherein the thrust bearing pads (2) are arranged in a circular ring shape.
10. The high-pressure oil jacking device with the cooling bush temperature function as claimed in claim 1, wherein the positioning column (10) is positioned in the middle of the positions of the inner ring and the outer ring at the bottom of the thrust bearing bush (2), and the positioning column (10) is connected with the fixed base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120810415.0U CN215293303U (en) | 2021-04-20 | 2021-04-20 | High-pressure oil jacking device with cooling tile temperature function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120810415.0U CN215293303U (en) | 2021-04-20 | 2021-04-20 | High-pressure oil jacking device with cooling tile temperature function |
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| CN215293303U true CN215293303U (en) | 2021-12-24 |
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| CN202120810415.0U Active CN215293303U (en) | 2021-04-20 | 2021-04-20 | High-pressure oil jacking device with cooling tile temperature function |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115163393A (en) * | 2022-07-02 | 2022-10-11 | 中国长江电力股份有限公司 | Method for judging jacking of high-pressure oil of large-scale water turbine generator set |
| CN115539518A (en) * | 2022-11-28 | 2022-12-30 | 国能大渡河检修安装有限公司 | Multivariable hydroelectric generating set thrust bearing temperature regulation and control method |
| CN117072368A (en) * | 2023-09-15 | 2023-11-17 | 南方电网调峰调频发电有限公司储能科研院 | Control method and device for thrust high-pressure oil jacking system of hydroelectric generating set |
-
2021
- 2021-04-20 CN CN202120810415.0U patent/CN215293303U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115163393A (en) * | 2022-07-02 | 2022-10-11 | 中国长江电力股份有限公司 | Method for judging jacking of high-pressure oil of large-scale water turbine generator set |
| CN115163393B (en) * | 2022-07-02 | 2024-05-10 | 中国长江电力股份有限公司 | High-pressure oil jacking judging method for large-scale hydroelectric generating set |
| CN115539518A (en) * | 2022-11-28 | 2022-12-30 | 国能大渡河检修安装有限公司 | Multivariable hydroelectric generating set thrust bearing temperature regulation and control method |
| CN117072368A (en) * | 2023-09-15 | 2023-11-17 | 南方电网调峰调频发电有限公司储能科研院 | Control method and device for thrust high-pressure oil jacking system of hydroelectric generating set |
| CN117072368B (en) * | 2023-09-15 | 2024-06-11 | 南方电网调峰调频发电有限公司储能科研院 | Control method and device for thrust high-pressure oil jacking system of hydroelectric generating set |
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