Internal circulation oil cooling device for bearing of water-turbine generator set

Abstract

The utility model discloses a water-turbine generator set bearing internal circulation oil cooling device, which relates to the technical field of bearing internal circulation oil cooling and comprises a base, an oil storage tank is arranged at the upper end of the base, and an oil filling hopper and an oil pump are arranged at the upper end of the oil storage tank. According to the water-turbine generator set bearing internal circulation oil cooling device, when impurities on the outer side of a filter plate need to be removed, a control panel controls a first electromagnetic valve and a second electromagnetic valve to be closed, a third electromagnetic valve and a fourth electromagnetic valve to be opened, an impurity removal pump is started, new oil in a new oil tank is flushed into an oil return pipe, the filter plate is reversely cleaned, and then an air cylinder is started; the cleaning brush is driven by the connecting base to clean the outer side of the filter plate, so that impurities enter the recycling box through the impurity removal pipe, frequent shutdown is not needed, the power generation efficiency cannot be affected, manual cleaning is not needed, potential safety hazards do not exist, and the impurity removal efficiency of the filter plate is improved.

Description

Technical Field

[0001] This utility model relates to the field of bearing internal circulation oil cooling technology, and in particular to a bearing internal circulation oil cooling device for hydro-generator sets. Background Technology

[0002] The internal circulating oil cooling system for the bearings of hydro-generator sets is a key component ensuring stable operation of the unit, primarily used for bearing heat dissipation and lubrication. It utilizes a closed-loop oil circuit system, with an oil pump driving the lubricating oil to circulate between the bearing cavity and the cooler. After absorbing the heat generated by bearing friction, the lubricating oil is cooled by the cooler and then returns to the bearing cavity, forming a continuous heat dissipation cycle.

[0003] Existing cooling devices require the lubricating oil to be filtered through a filter plate before entering the bearing cavity. However, the filter plate needs to be cleaned during long-term use, which conflicts with the unit's operating requirements. Frequent shutdowns affect power generation efficiency, manual cleaning poses safety hazards, and the filter screen reset accuracy is difficult to guarantee. Therefore, this utility model proposes a circulating oil cooling device for the bearing of a hydro-generator unit. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a circulating oil cooling device for the bearings of hydro-generator sets, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a circulating oil cooling device for the bearings of a hydro-generator set, comprising a base, an oil storage tank at the upper end of the base, an oil hopper and an oil pump at the upper end of the oil storage tank, an oil extraction pipe and an oil guide pipe connected to the outside of the oil pump, a refrigeration box in the middle of the oil extraction pipe, a return oil pipe connected to the outside of the base, a filter box and a cleanup mechanism in the middle of the return oil pipe, a filter plate in the middle of the filter box, and a control panel on the outside of the oil storage tank;

[0006] The impurity removal mechanism includes a solenoid valve one, a solenoid valve two, a new oil tank, and an impurity removal pump. The outside of the impurity removal pump is connected to an oil supply pipe and an oil outlet pipe. A solenoid valve three is installed in the middle of the oil outlet pipe. One end of the return oil pipe is connected to an impurity removal pipe. A solenoid valve four is installed in the middle of the impurity removal pipe. The other end of the impurity removal pipe is connected to a recovery box.

[0007] A cylinder is provided on the outside of the filter box, a connecting seat is provided at the output end of the cylinder, a cleaning brush and a limiting block are provided on the outside of the connecting seat, and a limiting groove is provided inside the filter box.

[0008] As a further technical solution of this utility model, the base is fixedly connected to the oil storage tank, the oil filling hopper is connected to the oil storage tank, the oil pump is connected to both the oil extraction pipe and the oil guide pipe, and the refrigeration box is connected to the oil extraction pipe.

[0009] As a further technical solution of this utility model, the return oil pipe is connected to the oil storage tank, the return oil pipe and the guide oil pipe are respectively connected to the output end and the input end of the bearing cavity, the return oil pipe is connected to the filter box, the control panel is provided with control buttons and display screen on the outside, and the control panel is provided with control circuit board and battery inside.

[0010] As a further technical solution of this utility model, the first solenoid valve and the second solenoid valve are located on both sides of the filter box and are connected to the return oil pipe. The new oil tank is connected to the impurity removal pump through the oil supply pipe. The impurity removal pump is connected to the return oil pipe through the oil outlet pipe. The third solenoid valve is electrically connected to the control panel.

[0011] As a further technical solution of this utility model, the recovery tank and the return oil pipe are connected by a cleanup pipe, and the solenoid valve is electrically connected to the control panel.

[0012] As a further technical solution of this utility model, the output end of the cylinder is fixedly connected to the connecting seat, the connecting seat is fixedly connected to the cleaning brush, and the limiting block is adapted to the limiting groove.

[0013] This utility model provides a circulating oil cooling device for the bearings of a hydro-generator set. Compared with the prior art, it has the following advantages:

[0014] This design incorporates an internal circulating oil cooling device for the bearings of a hydro-generator unit. By installing impurity removal mechanisms on both sides of the filter box, when impurities on the outer side of the filter plates need to be removed, the control panel closes solenoid valves one and two, and opens solenoid valves three and four. This activates the impurity removal pump, which pumps fresh oil from the new oil tank into the return oil pipe through the supply pipe and solenoid valve three, performing reverse cleaning of the filter plates. Next, the cylinder is activated, driving a cleaning brush via a connecting seat to sweep the outer side of the filter plates, causing impurities to fall off and be flushed into the return oil pipe. The impurities then enter the recovery tank through the impurity removal pipe. This design eliminates the need for frequent shutdowns, does not affect power generation efficiency, requires no manual cleaning, poses no safety hazards, and significantly improves the impurity removal efficiency of the filter plates. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the internal circulating oil cooling device for the bearings of a hydro-generator set.

[0016] Figure 2Another perspective view of the internal circulating oil cooling device for the bearings of a hydro-generator set;

[0017] Figure 3 For the internal circulating oil cooling device of the bearing of the hydro-generator set Figure 2 Enlarged view of A in the middle;

[0018] Figure 4 This is a front view of the internal circulating oil cooling device for the bearings of a hydro-generator set.

[0019] Figure 5 For the internal circulating oil cooling device of the bearing of the hydro-generator set Figure 4 Side sectional view of AA;

[0020] Figure 6 For the internal circulating oil cooling device of the bearing of the hydro-generator set Figure 5 A magnified view of B in the middle.

[0021] In the diagram: 1. Base; 2. Oil storage tank; 3. Oil filling hopper; 4. Oil pump; 5. Oil extraction pipe; 6. Refrigeration box; 7. Oil return pipe; 8. Oil guide pipe; 9. Filter box; 10. Filter plate; 11. Impurity removal mechanism; 111. Solenoid valve one; 112. Solenoid valve two; 113. New oil tank; 114. Impurity removal pump; 115. Oil supply pipe; 116. Oil outlet pipe; 117. Solenoid valve three; 118. Impurity removal pipe; 119. Recovery box; 1110. Solenoid valve four; 1111. Cylinder; 1112. Connecting seat; 1113. Cleaning brush; 1114. Limit block; 1115. Limit groove; 12. Control panel. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-6 This utility model provides a technical solution for a circulating oil cooling device for the bearings of a hydro-generator set: The circulating oil cooling device for the bearings of a hydro-generator set includes a base 1, an oil storage tank 2 at the upper end of the base 1, an oil hopper 3 and an oil pump 4 at the upper end of the oil storage tank 2, an oil extraction pipe 5 and an oil guide pipe 8 connected to the outside of the oil pump 4, a cooling box 6 in the middle of the oil extraction pipe 5, a return oil pipe 7 connected to the outside of the base 1, a filter box 9 and a cleanup mechanism 11 in the middle of the return oil pipe 7, a filter plate 10 in the middle of the filter box 9, and a control panel 12 on the outside of the oil storage tank 2;

[0024] The impurity removal mechanism 11 includes a solenoid valve 111, a solenoid valve 112, a new oil tank 113, and an impurity removal pump 114. The outer side of the impurity removal pump 114 is connected to an oil supply pipe 115 and an oil outlet pipe 116. A solenoid valve 3 117 is installed in the middle of the oil outlet pipe 116. One end of the return oil pipe 7 is connected to an impurity removal pipe 118. A solenoid valve 4 1110 is installed in the middle of the impurity removal pipe 118. The other end of the impurity removal pipe 118 is connected to a recovery box 119. A cylinder 1111 is installed on the outer side of the filter box 9. A connecting seat 1112 is installed at the output end of the cylinder 1111. A cleaning brush 1113 and a limiting block 1114 are installed on the outer side of the connecting seat 1112. A limiting groove 1115 is opened inside the filter box 9.

[0025] like Figure 1-2 As shown, the base 1 is fixedly connected to the oil storage tank 2, the oil hopper 3 is connected to the oil storage tank 2, the oil pump 4 is connected to the oil extraction pipe 5 and the oil guide pipe 8, and the refrigeration box 6 is connected to the oil extraction pipe 5, which facilitates the extraction and cooling of the oil with heat inside the oil storage tank 2.

[0026] like Figure 1-3 As shown, the return oil pipe 7 is connected to the oil storage tank 2. The return oil pipe 7 and the guide oil pipe 8 are connected to the output end and input end of the bearing cavity, respectively. The return oil pipe 7 is connected to the filter box 9. The control panel 12 is equipped with control buttons and a display screen on the outside. The control panel 12 is equipped with a control circuit board and a battery inside, which facilitates the connection of the cooled lubricating oil to the bearing cavity to form a lubricating oil circulation operation.

[0027] like Figure 3-6 As shown, solenoid valve 111 and solenoid valve 212 are located on both sides of the filter box 9 and are both connected to the return oil pipe 7. The new oil tank 113 is connected to the impurity removal pump 114 through the oil supply pipe 115. The impurity removal pump 114 is connected to the return oil pipe 7 through the oil outlet pipe 116. Solenoid valve 317 is electrically connected to the control panel 12. The recovery tank 119 is connected to the return oil pipe 7 through the impurity removal pipe 118. Solenoid valve 4110 is electrically connected to the control panel 12, which facilitates the backwashing of the filter plate 10 and removes the filtered impurities.

[0028] like Figure 5-6 As shown, the output end of the cylinder 1111 is fixedly connected to the connecting seat 1112, the connecting seat 1112 is fixedly connected to the cleaning brush 1113, and the limiting block 1114 is adapted to the limiting groove 1115, which facilitates the cleaning operation during the backwashing of the filter plate 10 and improves the impurity removal efficiency.

[0029] The working principle of this utility model is as follows: During the use of the cooling device, the return oil pipe 7 and the guide oil pipe 8 are connected to the bearing cavity. The oil inside the oil storage tank 2 is drawn in through the oil pump 4 and the oil extraction pipe 5. Then, it is cooled by the cooling box 6 and flows into the bearing cavity. Then, the circulating oil with heat is returned to the inside of the oil storage tank 2 through the return oil pipe 7. During this process, impurities are filtered by the filter plate 10 inside the filter box 9, thereby performing a circulation operation.

[0030] It should be noted that, through the impurity removal mechanism 11, when impurities on the outside of the filter plate 10 need to be removed, the control panel 12 controls the solenoid valves 111 and 112 to close, thus blocking the return oil pipe 7 and the filter box 9 from the oil storage tank 2 and the bearing cavity. Then, the control panel 12 controls the solenoid valves 117 and 1110 to open, and simultaneously starts the impurity removal pump 114, which flushes the new oil from the new oil tank 113 into the return oil pipe 7 through the oil supply pipe 115 and the solenoid valve 117. The oil then passes through the filter box 9 and cleans the filter plate 10. Reverse cleaning is performed, and then cylinder 1111 is started, so that the output end of cylinder 1111 drives the connecting seat 1112 and cleaning brush 1113 to clean the outside of filter plate 10, so that the impurities are dislodged and flushed into the inside of return oil pipe 7, and then enter the inside of recovery box 119 through impurity removal pipe 118. After removing impurities, solenoid valve 4 1110 and solenoid valve 3 117 are closed, and solenoid valve 1 111 and solenoid valve 2 112 are opened to connect return oil pipe 7 with base 1 and bearing cavity, which facilitates the subsequent cooling operation of circulating oil.

[0031] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A circulating oil cooling device for the bearings of a hydro-generator set, characterized in that, Includes a base (1), an oil storage tank (2) is provided at the upper end of the base (1), an oil filling hopper (3) and an oil pump (4) are provided at the upper end of the oil storage tank (2), an oil suction pipe (5) and an oil guide pipe (8) are connected to the outside of the oil pump (4), a refrigeration box (6) is provided in the middle of the oil suction pipe (5), an oil return pipe (7) is connected to the outside of the base (1), a filter box (9) and a dirt removal mechanism (11) are provided in the middle of the oil return pipe (7), a filter plate (10) is provided in the middle of the filter box (9), and a control panel (12) is provided on the outside of the oil storage tank (2). The impurity removal mechanism (11) includes a solenoid valve one (111), a solenoid valve two (112), a new oil tank (113), and an impurity removal pump (114). The impurity removal pump (114) is connected to an oil supply pipe (115) and an oil outlet pipe (116) on its outer side. A solenoid valve three (117) is provided in the middle of the oil outlet pipe (116). One end of the return oil pipe (7) is connected to an impurity removal pipe (118). A solenoid valve four (1110) is provided in the middle of the impurity removal pipe (118). The other end of the impurity removal pipe (118) is connected to a recovery box (119). A cylinder (1111) is provided on the outside of the filter box (9). A connecting seat (1112) is provided at the output end of the cylinder (1111). A cleaning brush (1113) and a limiting block (1114) are provided on the outside of the connecting seat (1112). A limiting groove (1115) is provided inside the filter box (9).

2. The internal circulating oil cooling device for the bearings of a hydro-generator set according to claim 1, characterized in that, The base (1) is fixedly connected to the oil storage tank (2), the oil filling hopper (3) is connected to the oil storage tank (2), the oil pump (4) is connected to the oil extraction pipe (5) and the oil guide pipe (8), and the refrigeration box (6) is connected to the oil extraction pipe (5).

3. The internal circulating oil cooling device for the bearings of a hydro-generator set according to claim 1, characterized in that, The return oil pipe (7) is connected to the oil storage tank (2). The return oil pipe (7) and the guide oil pipe (8) are respectively connected to the output end and the input end of the bearing cavity. The return oil pipe (7) is connected to the filter box (9). The control panel (12) is provided with control buttons and a display screen on the outside. The control panel (12) is provided with a control circuit board and a battery inside.

4. The internal circulating oil cooling device for the bearings of a hydro-generator set according to claim 1, characterized in that, The first solenoid valve (111) and the second solenoid valve (112) are located on both sides of the filter box (9) and are connected to the return oil pipe (7). The new oil tank (113) is connected to the impurity removal pump (114) through the oil supply pipe (115). The impurity removal pump (114) is connected to the return oil pipe (7) through the oil outlet pipe (116). The third solenoid valve (117) is electrically connected to the control panel (12).

5. The internal circulating oil cooling device for the bearings of a hydro-generator set according to claim 1, characterized in that, The recovery tank (119) and the return oil pipe (7) are connected by a clean pipe (118), and the solenoid valve (1110) and the control panel (12) are electrically connected.

6. The internal circulating oil cooling device for the bearings of a hydro-generator set according to claim 1, characterized in that, The output end of the cylinder (1111) is fixedly connected to the connecting seat (1112), the connecting seat (1112) is fixedly connected to the cleaning brush (1113), and the limiting block (1114) is adapted to the limiting groove (1115).

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