CN112797304A

CN112797304A - Power station generator oil groove anomaly detection device

Info

Publication number: CN112797304A
Application number: CN202110099968.4A
Authority: CN
Inventors: 李唯真; 刘媛; 刘鹏; 郑开来
Original assignee: Hunan Water Conservancy Investment Local Power Co Ltd
Current assignee: Hunan Water Conservancy Investment Local Power Co Ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-05-14

Abstract

The application relates to a hydropower station generator oil groove abnormity detection device, which belongs to the field of hydropower station generator detection and comprises a liquid discharge channel, wherein the liquid discharge channel comprises a plurality of branch pipes which are used for being communicated with corresponding oil grooves, and inlets of the branch pipes are respectively positioned above liquid levels of the corresponding oil grooves; a collecting device is arranged below the liquid drainage channel and comprises a support, a water tank and an elastic component, and the water tank is suspended on the support through the elastic component; the water tank is positioned below the liquid outlet of the liquid drainage channel, the outer bottom surface of the water tank is provided with a friction plate, the main shaft is provided with a friction disk, and the friction disk is positioned below the friction plate; when the oil-water mixture in the water tank reaches a specified liquid level, the friction plate is contacted with the friction disc. The oil-water mixture in the oil tank enters the water tank through the liquid discharge channel, the oil-water mixture in the water tank descends when reaching the specified liquid level, the friction plate and the friction disc below the water tank rub and heat up, and water in the water tank is evaporated to complete oil-water separation. The application has the effect of saving resources.

Description

Power station generator oil groove anomaly detection device

Technical Field

The application relates to a power station generator detection field especially relates to a power station generator oil groove anomaly detection device.

Background

At present, hydroelectric power generation is an important item in the electric power field, and generally uses the potential energy of water to convert the kinetic energy of water flowing to a low position from a high water level into mechanical energy and then convert the mechanical energy into electric energy. The hydroelectric power generation is carried out by utilizing natural energy, and the pollution to the natural environment is avoided, so the application is wide; usually, a rotor is sleeved on a main shaft of the hydroelectric generator, and a plurality of oil grooves are sleeved on the main shaft and rotatably connected with the main shaft.

Chinese patent No. CN204666215U discloses a device for detecting an abnormality of an oil groove of a generator in a hydropower station, which includes an upper liquid accumulating pipe, wherein an upper valve is arranged at the lower end of the upper liquid accumulating pipe, the upper valve is communicated with the upper liquid accumulating pipe, an upper liquid accumulating side pipe is arranged on the upper liquid accumulating pipe, the upper end of the upper liquid accumulating side pipe is communicated with an upper overflow side pipe, the upper overflow side pipe is communicated with the upper liquid accumulating pipe, and an upper liquid level sensor is arranged on the inner wall of the upper liquid accumulating side pipe; the tail end of the underflow oil pipe is communicated with a lower liquid accumulating pipe, and the lower end of the lower liquid accumulating pipe is provided with a lower valve; the lower valve is communicated with a lower liquid drainage pipe, a lower liquid accumulation side pipe is arranged on the lower liquid accumulation pipe, the lower end of the lower liquid accumulation side pipe is communicated with an underflow side pipe, the underflow side pipe is communicated with the lower liquid drainage pipe, and a lower liquid level sensor is arranged on the inner wall of the lower liquid accumulation side pipe. When water permeates into the oil groove, the water and oil in the oil groove form an oil-water mixture, the oil-water mixture flows into the upper liquid accumulation pipe and the lower liquid accumulation pipe, the oil-water mixture flows into the upper liquid accumulation side pipe and the lower liquid accumulation side pipe respectively and triggers the upper liquid level sensor and the lower liquid level sensor respectively, and the upper sensor and the lower sensor transmit electric signals to inform information to personnel. The oil-water mixture flows out from the upper liquid discharge pipe and the lower liquid discharge pipe.

In view of the above-mentioned related art, the inventors consider that there is a disadvantage that the oil-water mixture is directly discharged from the upper drain pipe and the lower drain pipe, resulting in waste.

Disclosure of Invention

For resources are saved, the application provides a power station generator oil groove anomaly detection device.

The application provides a pair of power station generator oil groove anomaly detection device adopts following technical scheme:

the device for detecting the abnormity of the generator oil tank of the hydropower station comprises a liquid discharge channel, wherein the liquid discharge channel comprises a plurality of branch pipes which are used for being communicated with the corresponding oil tanks, and inlets of the branch pipes are respectively positioned above the liquid levels of the corresponding oil tanks; a collecting device is arranged below the liquid drainage channel and comprises a support, a water tank and an elastic component, and the water tank is suspended on the support through the elastic component; the water tank is positioned below the liquid outlet of the liquid drainage channel, the outer bottom surface of the water tank is provided with a friction plate, the main shaft is provided with a friction disc, and the friction disc is positioned below the friction plate; when the oil-water mixture in the water tank reaches a specified liquid level, the friction plate is contacted with the friction disc.

Through adopting above-mentioned technical scheme, when the rivers seepage, rivers get into in the oil groove, when the oil water mixture in the oil groove is higher than the branch pipe, the oil water mixture gets into in the flowing back passageway and flows into the water tank from the liquid outlet, the weight of water tank gradually increases this moment, the elasticity subassembly changes gradually, when the oil water mixture in the water tank reaches appointed liquid level, the friction disc of water tank bottom and the friction disk butt of main shaft, because the main shaft of generator is in the rotating-state all the time under the effect of water force, consequently, the main shaft drives friction disc synchronous rotation, friction disc and friction disc butt and friction, the friction produces high temperature heating water tank, water in the water tank is evaporated and is realized water oil-water separation, the oil in the retention water tank can repeated reuse. Meanwhile, the power of the main shaft is driven by water flow, mechanical energy is converted into heat energy through the friction disc and the friction disc, and the water heating tank does not need other energy sources, so that resources are further saved.

Optionally, the elastic assembly comprises a sliding rod and a spring which are vertically arranged, and the sliding rod penetrates through and slides in the bracket; one end of the spring is connected with the sliding rod, and the other end of the spring is connected with the support.

By adopting the technical scheme, when the oil-water mixture in the water tank does not reach the designated liquid level, a certain distance is reserved between the friction plate at the bottom end of the water tank and the friction disc on the main shaft under the action of the elastic force of the spring, after the water in the water tank is gradually evaporated, the weight of the water tank is gradually lightened, and when the oil-water mixture in the water tank is lower than the liquid level, the spring enables the friction plate of the water tank to be separated from the friction disc, so that the possibility of abrasion caused by the fact that the friction plate and.

Optionally, the spring is a compression spring, one end of the compression spring is connected with the top end of the sliding rod, and the other end of the compression spring is connected with the upper surface of the support.

Through adopting above-mentioned technical scheme, when getting into oil water mixture in the water tank, water tank weight increases gradually, and compression spring is compressed gradually, and when the liquid level in the water tank reached appointed liquid level, the friction disc butt and the friction of main shaft of the friction disc of water tank. The compression spring has simple structure, low cost and high cost performance.

Optionally, the spring is an extension spring, one end of the extension spring is connected with the water tank, and the other end of the extension spring is connected with the lower surface of the support.

Through adopting above-mentioned technical scheme, when getting into oil water mixture in the water tank, water tank weight increases gradually, and extension spring is stretched gradually, and when the liquid level in the water tank reached appointed liquid level, the friction disc butt and the friction of friction disc with the main shaft of water tank. The extension spring has the advantages of simple structure, low cost and high cost performance.

Optionally, a supporting rod is vertically arranged on the water tank, and the supporting rod penetrates through and is connected to the support in a sliding mode.

Through adopting above-mentioned technical scheme, through the slip restriction water tank's of branch and support slip direction, make friction disc and the better contact of friction disc, the water tank takes place the possibility of skew when reducing friction disc and friction disc contact simultaneously, improves the stability of structure.

Optionally, a tank cover is arranged on the upper surface of the water tank, and a sliding hole through which the liquid outlet end of the liquid discharge channel passes and is in sliding connection is formed in the tank cover; the inner top surface of the box cover inclines to one side of the main shaft from top to bottom, a water collecting tank is arranged at one side, close to the main shaft, in the box cover, and a water channel communicated with the water collecting tank is arranged at one side, close to the main shaft, of the box cover; the upper surface of the friction disc is provided with an inner ring and an outer ring, and the water outlet end of the water channel is positioned above the space between the inner ring and the outer ring.

Through adopting above-mentioned technical scheme, the moisture in the water tank is evaporated into vapor after being heated, and vapor condensation flows to the water catch bowl on the interior diapire of case lid and through the slope of interior diapire in, and water in the water catch bowl flows to the friction disk through the water course on, through rivers for the friction disk inner circle cooling, reduces the high temperature transmission of friction disk and leads to the possibility of main shaft intensity decline to the main shaft. In order to maintain the ability of friction between the friction disc and the friction plate to increase temperature, the inner ring and the outer ring block water flow, and the possibility of water flow to the contact part of the friction disc and the friction plate is reduced.

Optionally, a through hole communicated with the inside of the water tank penetrates through the upper surface of the tank cover.

Through adopting above-mentioned technical scheme, the water in the case lid is by partial condensation on the case lid after the evaporation, and another part is discharged from the through-hole, reduces the possibility that the comdenstion water is too much drippage on the case lid can be in the water tank, increases the speed of moisture evaporation. Venting the steam through the through-holes reduces the likelihood of excessive moisture flowing onto the friction disc causing flooding of the inner and outer rings, improving structural stability.

Optionally, a liquid discharge pipe is arranged above the outer side wall of the water tank, which is far away from the main shaft, and the liquid discharge pipe is communicated with the water tank; the drain tube extends beyond the diameter of the friction disc.

Through adopting above-mentioned technical scheme, because the density of oil is greater than water and the quality ratio water of oil is clear, consequently oil is located the top of water, and after oil-water mixture accumulated to a certain degree in the water tank, the oil of upper place was discharged from the fluid-discharge tube in the water tank, makes things convenient for artifical the collection. Meanwhile, the possibility of oil flowing to the friction disc is reduced through the drain pipe, and the friction force between the friction disc and the friction disc is maintained.

Optionally, a collecting box is arranged on the support, the collecting box is located below the friction disc, and the collecting box is located below the liquid discharge pipe; and a filter plate is arranged in the water tank.

Through adopting above-mentioned technical scheme, the oil that follow the fluid-discharge tube exhaust gets into in the collecting box and is collected, filters the impurity in the oil through the filter plate simultaneously, and the possibility of recycling of oil is higher, further improves resources are saved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the oil groove is communicated with the oil drainage channel, a water tank is arranged below the oil drainage channel, a friction disc is arranged below the water tank, and the main shaft is provided with the friction disc; when rivers seepage, in the oil water mixture got into drainage channel and flowed into the water tank from the liquid outlet, when the oil water mixture in the water tank reached appointed liquid level, the friction disc of water tank bottom and main shaft butt, friction disc and friction disc butt and friction, the friction produces high temperature and heats the water tank, and water in the water tank is evaporated and is realized water oil separating, and the oil of leaving in the water tank can reuse resources are saved. Meanwhile, the power of the main shaft is driven by water flow, mechanical energy is converted into heat energy through the friction disc and the friction plate, and the water heating tank does not need other energy sources, so that resources are further saved;

2. the elastic component comprises a slide rod and a spring which are vertically arranged; when the oil-water mixture in the water tank does not reach the designated liquid level, a certain distance is reserved between the friction plate at the bottom end of the water tank and the friction disc on the main shaft under the elastic force action of the spring, when the water in the water tank is gradually evaporated, the weight of the water tank is gradually lightened, and when the oil-water mixture in the water tank is lower than the liquid level, the spring enables the friction plate of the water tank to be separated from the friction disc, so that the possibility of abrasion caused by the fact that the friction plate and the;

3. the upper surface of water tank is provided with the case lid, and the interior top surface top-down of case lid inclines to one side of main shaft, and the moisture in the water tank is evaporated into vapor after being heated, and vapor condensation flows to the water catch bowl on the interior diapire of case lid and through the slope of interior diapire in, and water in the water catch bowl flows to the friction disk through the water course on, is the friction disk inner circle cooling through rivers, reduces the high temperature transmission of friction disk and leads to the possibility that main shaft intensity descends to the main shaft. In order to maintain the ability of friction between the friction disc and the friction plate to increase temperature, the inner ring and the outer ring block water flow, and the possibility of water flow to the contact part of the friction disc and the friction plate is reduced.

Drawings

Fig. 1 is a schematic view of an overall structure of a hydroelectric power station generator oil sump abnormality detection apparatus according to embodiment 1 of the present application;

FIG. 2 is a schematic cross-sectional view of the hydroelectric generator oil sump anomaly detection apparatus shown in FIG. 1;

fig. 3 is a schematic view of an overall structure of a hydroelectric power station generator oil sump abnormality detection apparatus according to embodiment 2 of the present application.

Description of reference numerals: 1. a main shaft; 2. a rotor; 3. an oil sump; 4. a liquid discharge channel; 41. a main pipe; 42. a branch pipe; 5. a collection device; 51. a support; 52. a water tank; 521. a liquid level sensor; 53. an elastic component; 531. a slide bar; 532. a baffle plate; 533. a compression spring; 534. an extension spring; 54. a fixed block; 55. a strut; 6. a friction plate; 7. a friction disk; 8. a box cover; 9. a slide hole; 10. fixing the bolt; 11. a water collection tank; 111. a horizontal segment; 112. a vertical section; 12. a through hole; 13. filtering the plate; 14. a water channel; 15. an inner ring; 16. an outer ring; 17. a liquid discharge pipe; 18. a connecting rod; 19. and a collection box.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings.

The embodiment of the application discloses power station generator oil groove anomaly detection device.

Example 1

The generator includes main shaft 1, and the cover is established and is fixed with rotor 2 on main shaft 1, and the coaxial cover in the top that main shaft 1 is located rotor 2 is equipped with and has an oil groove 3, and the coaxial cover in the below that main shaft 1 is located rotor 2 is established and has two oil grooves 3. The relative positions of the three oil grooves 3 are fixed.

Referring to fig. 1 and 2, a liquid discharge channel 4 is provided at one side of a main shaft 1, the liquid discharge channel 4 includes a main pipe 41 and branch pipes 42, the main pipe 41 is vertically disposed, the number of the branch pipes 42 is the same as that of the oil grooves 3, and the branch pipes 42 are horizontally disposed. One end of the branch pipe 42 is welded to and communicates with the main pipe 41, and the other end is welded to and communicates with the corresponding oil groove 3. The branch pipe 42 communicates with the oil sump 3 at a passage higher than the highest liquid level of the corresponding oil sump 3, and the main pipe 41 communicates at its bottom end with the outside. When water seeps and flows into the oil sump 3 and forms an oil-water mixture with the water in the oil sump 3, the oil-water mixture in the oil sump 3 flows from the branch pipe 42 into the main pipe 41 and flows out from the bottom end of the main pipe 41.

The main shaft 1 is provided with a collecting device 5 on one side close to the main pipe 41, the collecting device 5 comprises a bracket 51, the bracket 51 is connected with the ground, and one side of the bracket 51 close to the main pipe 41 is horizontally arranged. The bracket 51 is provided with a water tank 52 and an elastic component 53, the water tank 52 is rectangular, the upper surface of the water tank is provided with an opening, and the water tank 52 is positioned below the main pipe 41. A liquid level sensor 521 is welded on one side, which is vertical and far away from the main shaft 1, of the water tank 52, and the liquid level sensor 521 is connected with the control room through an electric wire. The oil-water mixture in the oil groove 3 flows into the water tank 52 through the branch pipe 42 and the main pipe 41, and when the oil-water mixture in the water tank 52 reaches a certain height, the liquid level sensor 521 is triggered, and the liquid level sensor 521 transmits an electric signal to a control room to remind an operator.

The outer bottom surface of the water tank 52 is welded with a friction plate 6, and a friction plate 7 is coaxially sleeved and welded on the main shaft 1 below the friction plate 6. The material of the friction disk 7 includes, but is not limited to, metal and carbon fiber material. The material of the friction plate 6 includes, but is not limited to, carbon ceramic material. The water tank 52 is lowered, and the friction plate 6 of the water tank 52 rubs against the friction plate 7.

A fixing block 54 is welded above the outer side wall of the water tank 52 far away from the main shaft 1. The elastic member 53 includes a sliding rod 531, the sliding rod 531 is cylindrical and vertically welded to the upper surface of the fixing block 54, and the sliding rod 531 penetrates through the bracket 51 and is slidably connected to the bracket 51. A disc-shaped baffle 532 is coaxially welded at the top end of the sliding rod 531, a compression spring 533 is coaxially sleeved at one section of the sliding rod 531 above the support 51, the top end of the compression spring 533 is welded with the lower surface of the baffle 532, and the other end of the compression spring 533 is welded with the upper surface of the support 51. When the liquid level of all the oil in the oil groove 3 collected in the oil tank is a designated level, and when the liquid level in the water tank 52 is only oil and is not higher than the designated level, the friction plate 6 at the bottom end of the water tank 52 slightly contacts the friction plate 7. Because the weight of water is greater than that of oil, when the oil-water mixture enters the water tank 52 and is higher than a specified level, the compression spring 533 is compressed, the water tank 52 descends, the brake pads at the bottom end of the vertical direction and the brake disc are heated up by friction, and the water in the water tank 52 is evaporated.

A supporting rod 55 with a rectangular cross section is welded on one side of the fixing block 54 away from the main shaft 1, and the supporting rod 55 penetrates through and slides in the bracket 51. The bracket 51 and the sliding rod 531 define the moving direction of the water tank 52 at the same time, reducing the possibility of the water tank 52 shifting.

The upper surface of the water tank 52 is provided with a rectangular tank cover 8 with an opening on the lower surface, the upper surface of the water tank 52 is provided with a circular slide hole 9, and the main pipe 41 penetrates through and is connected in the slide hole 9 in a sliding manner. Fixing bolts 10 penetrate through corners of the upper surface of the tank cover 8 respectively, and the fixing bolts 10 penetrate through one end of the tank cover 8 to penetrate through the water tank 52 and are in threaded connection with the water tank 52. The tank cover 8 is connected to the water tank 52 by the fixing bolt 10, the oil-water mixture flows into the water tank 52 through the main pipe 41, the water tank 52 lowers the tank cover 8, and the main pipe 41 slides in the slide hole 9 of the tank cover 8.

The inner top surface of the box cover 8 is an inclined surface which inclines to one side close to the main shaft 1 from top to bottom. The inside water catch bowl 11 that is provided with of case lid 8, water catch bowl 11 include horizontal segment 111 and vertical section 112, and horizontal segment 111 welds in the one side that case lid 8 is close to main shaft 1, and the bottom surface of horizontal segment 111 flushes with the outer bottom surface of case lid 8. The vertical section 112 is welded on the side of the upper surface of the horizontal section 111 far away from the main shaft 1, and a certain distance is left between the upper surface of the vertical section 112 and the inner top surface of the box cover 8. The high temperature generated by the friction between the friction plate 6 and the friction disk 7 causes the water content of the oil-water mixture in the water tank 52 to boil and evaporate, the evaporated water vapor condenses into water drops on the inner top surface of the tank cover 8, and the water drops flow into the water collection tank 11 along the inclined direction of the inner top surface of the tank cover 8.

A plurality of through holes 12 are arranged on one side of the upper surface of the box cover 8 far away from the main shaft 1. When the water tank 52 is heated, water vapor in the water tank 52 is emitted from the through hole 12.

The case lid 8 is close to the water catch bowl 11 and the vertical lateral wall has seted up perpendicularly out the basin, goes out the inside intercommunication of basin and case lid 8, goes out the bottom surface of basin and flushes with the upper surface of water catch bowl 11 horizontal segment 111 on the case lid 8. The outer side wall of the box cover 8 close to the water outlet groove is welded with a water channel 14, the cross section of the water channel 14 is arranged in a U shape, and the inner bottom surface of the water channel 14 is flush with the bottom surface of the water groove. The water in the water collection sump 11 passes through the water outlet sump and out through the water passage 14, and the water flows to the upper surface of the friction disc 7 to cool the friction disc 7.

An inner ring 15 and an outer ring 16 are welded on the upper surface of the friction disc 7, and the inner circumferential wall of the inner ring 15 is jointed and connected with the outer circumferential wall of the main shaft 1 in a sliding mode. The outer ring 16 is larger in diameter than the inner ring 15 and the outer ring 16 is flush with the upper surface of the inner ring 15. The water outlet end of the water channel 14 is located above and between the inner ring 15 and the outer ring 16. The water flowing out through the water channel 14 is located between the inner ring 15 and the outer ring 16, the water is blocked by the inner ring 15 and the outer ring 16 while the friction disc 7 is cooled by the water, and the possibility that the friction between the friction plate 6 and the friction disc 7 is influenced by the water flow is reduced.

The outer side wall of the water tank 52 far away from the main shaft 1 is welded and communicated with a liquid discharge pipe 17, and the lowest point of the inner peripheral wall of the liquid discharge pipe 17 is flush with the designated liquid level in the water tank 52. The end of the discharge pipe 17 remote from the water reservoir 52 extends beyond the diameter of the friction disc 7. Since the oil is less dense than the water, the oil floats above the water surface and the oil of the oil-water mixture in the tank 52 is discharged from the discharge pipe 17.

The lower surface of the support 51 is welded with a connecting rod 18, the bottom end of the connecting rod 18 is welded with a rectangular collecting box 19 with an upper surface arranged in an opening, a horizontally arranged filter plate 13 is welded in the collecting box 19, and the collecting box 19 is positioned below the friction disc 7 and below the liquid discharge pipe 17. The oil discharged from the drain pipe 17 is filtered by the filter sheet 13 and collected in the collection tank 19.

The implementation principle of the hydropower station generator oil groove abnormality detection device in embodiment 1 of the application is as follows: when water leaks, the water flows into the oil tank 3 to form an oil-water mixture with the oil in the oil tank 3. The oil-water mixture enters branch pipe 42 and flows into water tank 52 through main pipe 41. The oil-water mixture in the water tank 52 increases gradually, and the weight of the water tank 52 increases gradually, and the compression spring 533 is compressed gradually. When the oil-water mixture is higher than a specified level in the water tank 52, the friction plate 6 below the water tank 52 abuts against and rubs against the friction plate 6 on the main shaft 1. The friction plate 6 and the friction plate 7 rub to form high temperature, the high temperature heats the water tank 52, water of the oil-water mixture in the water tank 52 is evaporated into water vapor, part of the water vapor flows out from the through holes 12, part of the water vapor is condensed into water drops on the inner top surface of the box cover 8, and the water drops flow into the water collecting tank 11 along the inner top surface of the box cover 8. The water in the water collection sump 11 flows through the water channels 14 onto the friction disc 7, and the water flow is located between the inner ring 15 and the outer ring 16 to cool and dissipate heat from the friction disc 7.

Example 2

Referring to fig. 3, embodiment 2 is different from embodiment 1 in that an extension spring 534 replaces a compression spring 533, and the extension spring 534 is located below the bracket 51. The extension spring 534 is sleeved on the sliding rod 531, the top end of the extension spring 534 is welded with the bracket 51, and the other end of the extension spring 534 is welded with the fixing block 54. As the weight of the water tank 52 increases, the tension spring 534 is stretched.

The fixing bolt 10 is not arranged, and the box cover 8 is welded with the water tank 52.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a power station generator oil groove anomaly detection device which characterized in that: the liquid discharge device comprises a liquid discharge channel (4), wherein the liquid discharge channel (4) comprises a plurality of branch pipes (42) which are used for being communicated with corresponding oil grooves (3), and inlets of the branch pipes (42) are respectively positioned above liquid levels of the corresponding oil grooves (3); a collecting device (5) is arranged below the liquid drainage channel (4), the collecting device (5) comprises a support (51), a water tank (52) and an elastic component (53), and the water tank (52) is suspended on the support through the elastic component (53); the water tank (52) is positioned below the liquid outlet of the liquid drainage channel (4), the outer bottom surface of the water tank is provided with a friction plate (6), the main shaft (1) is provided with a friction disc (7), and the friction disc (7) is positioned below the friction plate (6); when the oil-water mixture in the water tank (52) reaches a specified level, the friction plate (6) is in contact with the friction plate (7).

2. The apparatus for detecting an abnormality in an oil sump of a generator of a hydroelectric power station according to claim 1, wherein: the elastic component (53) comprises a slide bar (531) and a spring which are vertically arranged, and the slide bar (531) penetrates through and slides in the bracket (51); one end of the spring is connected with the sliding rod (531), and the other end of the spring is connected with the bracket (51).

3. The apparatus for detecting an abnormality in an oil sump of a generator of a hydroelectric power station according to claim 2, wherein: the spring is a compression spring (533), one end of the compression spring (533) is connected with the top end of the sliding rod (531), and the other end of the compression spring is connected with the upper surface of the support (51).

4. The apparatus for detecting an abnormality in an oil sump of a generator of a hydroelectric power station according to claim 2, wherein: the spring is an extension spring (534), one end of the extension spring (534) is connected with the water tank (52), and the other end of the extension spring (534) is connected with the lower surface of the support (51).

5. The hydroelectric power plant generator oil sump abnormality detecting apparatus according to claim 3 or 4, wherein: a supporting rod (55) is vertically arranged on the water tank (52), and the supporting rod (55) penetrates through and is connected to the support (51) in a sliding mode.

6. The apparatus for detecting an abnormality in an oil sump of a generator of a hydroelectric power station according to claim 5, wherein: a box cover (8) is arranged on the upper surface of the water tank (52), and a sliding hole (9) through which the liquid outlet end of the liquid drainage channel (4) passes and is in sliding connection is formed in the box cover (8); the inner top surface of the box cover (8) inclines to one side of the main shaft (1) from top to bottom, a water collecting tank (11) is arranged at one side, close to the main shaft (1), in the box cover (8), and a water channel (14) communicated with the water collecting tank (11) is arranged at one side, close to the main shaft (1), of the box cover (8); the upper surface of the friction disc (7) is provided with an inner ring (15) and an outer ring (16), and the water outlet end of the water channel (14) is positioned above the space between the inner ring (15) and the outer ring (16).

7. The apparatus for detecting an abnormality in an oil sump of a generator of a hydroelectric power station according to claim 6, wherein: the upper surface of the box cover (8) is penetrated with a through hole (12) communicated with the inside of the water tank (52).

8. The apparatus for detecting an abnormality in an oil sump of a generator of a hydroelectric power station according to claim 5, wherein: a liquid discharge pipe (17) is arranged above the outer side wall of the water tank (52) far away from the main shaft (1), and the liquid discharge pipe (17) is communicated with the water tank (52); the drain pipe (17) extends to the outside of the diameter of the friction disc (7).

9. The apparatus for detecting an abnormality in an oil sump of a generator of a hydroelectric power station according to claim 8, wherein: a collecting box (19) is arranged on the support (51), the collecting box (19) is positioned below the friction disc (7), and the collecting box (19) is positioned below the liquid discharge pipe (17); a filter plate (13) is arranged in the water tank (52).