Motor cooling system

Abstract

The utility model discloses a motor cooling system, which relates to the technical field of motor cooling and comprises a reservoir, a submersible pump, a filter screen, a water curtain, a spray gun and a cooling fan. The submersible pump is arranged in the reservoir and connected with the water curtain and the spray gun through pipelines, the filter screen is arranged at a suction port of the cooling fan, the water curtain is arranged on the opposite side of the filter screen, the spray gun is used for spraying water mist between the filter screen and the water curtain, and the water curtain and the spray gun are used for forming water mist to cool air at the suction port of the cooling fan. The filter screen is used for isolating water vapor in cold air, and an air outlet of the cooling fan faces the motor. The water curtain and the spray gun are used for atomizing water to cool air at the suction port of the cooling fan, so that the air cooling effect is improved, and the influence of environmental factors on the cooling effect is reduced. In addition, a filter screen is installed at a suction port of the cooling fan, water vapor can be isolated, and the motor is prevented from being damaged.

Description

Technical Field

[0001] This application relates to the technical field of motor cooling, and particularly to a motor cooling system. Background Art

[0002] The main drive motor of the aluminum and aluminum alloy sheet hot rolling mill is a large DC motor, and the cooling method is forced air cooling. Air is forced into the motor by a centrifugal fan to cool the motor. When the mill produces wide-width sheet strips, due to the large rolling force, the motor is in a full-load operation state for a long time and generates serious heat. However, the original air-cooling system cannot meet the working conditions of long-term full-load operation and must stop to cool down, which seriously disrupts the production rhythm and affects production efficiency. Especially in summer, the heat dissipation effect of the motor is worse, and overheating shutdowns are more frequent, severely restricting the output of the equipment.

[0003] Based on the current relatively simple air-cooling system, only a centrifugal fan is used to supply air for the motor to dissipate heat, which can meet the normal working conditions but cannot adapt to long-term high-load working conditions and is greatly affected by environmental factors. The higher the environmental temperature, the worse the cooling effect.

[0004] How to enhance the cooling effect and reduce the influence of environmental factors on the cooling effect is a problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this application is to provide a motor cooling system to solve the problems that the current air-cooling system cannot adapt to long-term high-load working conditions, is greatly affected by environmental factors, and the higher the environmental temperature, the worse the cooling effect.

[0006] To solve the above technical problems, this application provides a motor cooling system, including: a reservoir, a submersible pump, a filter screen, a water curtain, a spray gun, and a cooling fan;

[0007] The submersible pump is arranged in the reservoir, and the submersible pump is respectively connected to the water curtain and the spray gun through pipelines. The filter screen is arranged at the suction port of the cooling fan, and the water curtain is arranged on the opposite side of the filter screen. The spray gun is used to spray water mist between the filter screen and the water curtain. The water curtain and the spray gun are used to form water mist to cool the air at the suction port of the cooling fan. The filter screen is used to isolate the water vapor in the cold air, and the air outlet of the cooling fan faces the motor.

[0008] Optionally, the submersible pump is sequentially connected to the water curtain through a first ball valve and a first solenoid valve. The pipeline between the first ball valve and the first solenoid valve is connected to the spray gun through a second solenoid valve. A third solenoid valve and a second ball valve are arranged on the compressed air pipeline connected to the spray gun.

[0009] Optionally, a production water pipeline is connected to the pipeline between the first solenoid valve and the first ball valve, and a third ball valve and a fourth ball valve are provided on the production water pipeline.

[0010] Optionally, the pipeline between the third ball valve and the fourth ball valve is connected to the reservoir through a fifth ball valve and a fourth solenoid valve.

[0011] Optionally, a controller is further included. A temperature detection device is provided at the motor, and the temperature detection device is used to detect the motor temperature. The controller is respectively connected to the temperature detection device, the first solenoid valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve, and the submersible pump.

[0012] Optionally, a float ball is provided at a preset height of the reservoir, and the float ball is connected to the controller.

[0013] Optionally, the pipeline between the first ball valve and the submersible pump is connected to the reservoir through a sixth ball valve.

[0014] Optionally, a recovery pool and a return ditch are further included. The recovery pool is located below the water curtain, and the return ditch is respectively connected to the recovery pool and the reservoir, and the recovery pool is higher than the reservoir.

[0015] Optionally, the number of the water curtains is multiple, and the multiple water curtains are arranged in parallel with the filter screen.

[0016] Optionally, a filter is connected to the water inlet of the submersible pump, and the filter is used to filter impurities in the reservoir.

[0017] A motor cooling system provided by the present application includes: a reservoir, a submersible pump, a filter screen, a water curtain, a spray gun, and a cooling fan; the submersible pump is arranged in the reservoir, the submersible pump is respectively connected to the water curtain and the spray gun through pipelines, the filter screen is arranged at the suction port of the cooling fan, a water curtain is arranged on the opposite side of the filter screen, the spray gun is used to spray water mist between the filter screen and the water curtain, the water curtain and the spray gun are used to form water mist to cool the air at the suction port of the cooling fan, the filter screen is used to isolate water vapor in the cold air, and the air outlet of the cooling fan faces the motor. The water curtain and the spray gun are used to atomize water to cool the air at the suction port of the cooling fan, so as to improve the air cooling effect and reduce the influence of environmental factors on the cooling effect. In addition, a filter screen is installed at the suction port of the cooling fan, which can isolate water vapor and prevent the motor from being damaged. Description of the Drawings

[0018] To more clearly illustrate the embodiments of the present application, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0019] Figure 1 The structural diagram of a motor cooling system provided for the embodiments of the present application;

[0020] The reference numerals are as follows: 1 is a reservoir, 2 is a submersible pump, 3 is a filter screen, 4 is a water curtain, 5 is a spray gun, 6 is a cooling fan, 7 is a first ball valve, 8 is a first solenoid valve, 9 is a second solenoid valve, 10 is a compressed air pipeline, 11 is a third solenoid valve, 12 is a second ball valve, 13 is a production water pipeline, 14 is a third ball valve, 15 is a fourth ball valve, 16 is a fifth ball valve, 17 is a fourth solenoid valve, 18 is a float ball, 19 is a sixth ball valve, 20 is a recovery pool, 21 is a return ditch. Detailed implementation manners

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present application.

[0022] The core of the present application is to provide a motor cooling system for enhancing the cooling effect and reducing the influence of environmental factors on the cooling effect.

[0023] To enable those skilled in the art to better understand the solutions of the present application, the following will further elaborate on the present application in combination with the accompanying drawings and specific implementation manners.

[0024] Figure 1 The structural diagram of a motor cooling system provided for the embodiments of the present application, as Figure 1 shown, a motor cooling system includes: a reservoir 1, a submersible pump 2, a filter screen 3, a water curtain 4, a spray gun 5, and a cooling fan 6; the submersible pump 2 is arranged in the reservoir 1, the submersible pump 2 is connected to the water curtain 4 and the spray gun 5 respectively through pipelines, the filter screen 3 is arranged at the suction port of the cooling fan 6, a water curtain 4 is arranged on the opposite side of the filter screen 3, the spray gun 5 is used to spray water mist between the filter screen 3 and the water curtain 4, the water curtain 4 and the spray gun 5 are used to form water mist to cool the air at the suction port of the cooling fan 6, the filter screen 3 is used to isolate the water vapor in the cold air, and the air outlet of the cooling fan 6 faces the motor.

[0025] In the embodiments of the present application, there are no specific limitations on the shape and material of the filter screen 3. Any filter screen 3 on the market that can filter water vapor is acceptable. By providing the filter screen 3 to isolate water vapor, damage to the motor can be avoided. In the embodiments of the present application, there are no specific limitations on the number of water curtains 4. The water curtains 4 are arranged on the opposite side of the filter screen 3. The number of water curtains 4 can be multiple, and the multiple water curtains 4 are all arranged parallel to the filter screen 3. The distance between each water curtain 4 and the filter screen 3 can be equal. There are no specific limitations on the position setting of the spray gun 5, as long as it is ensured that the water mist sprayed by the spray gun 5 is located between the water curtain 4 and the filter screen 3. Atomizing water with the water curtain 4 and the spray gun 5 helps to cool the air. Of course, in hot summer, ice cubes can also be put into the reservoir 1.

[0026] A motor cooling system provided by the embodiments of the present application includes: a reservoir, a submersible pump, a filter screen, a water curtain, a spray gun, and a cooling fan; the submersible pump is arranged in the reservoir, the submersible pump is respectively connected to the water curtain and the spray gun through pipelines, the filter screen is arranged at the suction port of the cooling fan, a water curtain is arranged on the opposite side of the filter screen, the spray gun is used to spray water mist between the filter screen and the water curtain, the water curtain and the spray gun are used to form water mist to cool the air at the suction port of the cooling fan, the filter screen is used to isolate water vapor in the cold air, and the air outlet of the cooling fan faces the motor. Atomizing water with the water curtain and the spray gun to cool the air at the suction port of the cooling fan, thereby improving the air cooling effect and reducing the influence of environmental factors on the cooling effect. In addition, a filter screen is installed at the suction port of the cooling fan, which can isolate water vapor and avoid damaging the motor.

[0027] Based on the above embodiments, in the embodiments of the present application, the submersible pump 2 is sequentially connected to the water curtain 4 through a first ball valve 7 and a first solenoid valve 8. The pipeline between the first ball valve 7 and the first solenoid valve 8 is connected to the spray gun 5 through a second solenoid valve 9. A third solenoid valve 11 and a second ball valve 12 are arranged on the compressed air pipeline 10 connected to the spray gun 5.

[0028] Under normal circumstances, the first ball valve 7 is in an open state. By providing the first solenoid valve 8 and the second solenoid valve 9, it is possible to select whether to use the water curtain 4 to cool the air or use the spray gun 5 to cool the air. If the environmental temperature is too high, the water curtain 4 and the spray gun 5 can also be combined to cool the air to enhance the cooling effect.

[0029] Based on the above embodiments, a production water pipeline 13 is connected to the pipeline between the first solenoid valve 8 and the first ball valve 7 of the embodiments of the present application. A third ball valve 14 and a fourth ball valve 15 are arranged on the production water pipeline 13.

[0030] When the submersible pump 2 in the reservoir 1 fails, production water can be conveyed to the water curtain 4 and the spray gun 5, and the system can be connected to the production water pipeline 13, having an emergency water supply function and can still operate in case of sudden failure.

[0031] Based on the above embodiments, the pipeline between the third ball valve 14 and the fourth ball valve 15 in the embodiments of the present application is connected to the reservoir 1 through the fifth ball valve 16 and the fourth solenoid valve 17. Through this design, the production water can be input into the reservoir 1 for utilization, improving the utilization rate of the production water.

[0032] Based on the above embodiments, the embodiments of the present application further include a controller. A temperature detection device is provided at the motor. The temperature detection device is used to detect the motor temperature. The controller is respectively connected to the temperature detection device, the first solenoid valve 8, the second solenoid valve 9, the third solenoid valve 11, the fourth solenoid valve 17, and the submersible pump 2.

[0033] By setting the controller and interlocking with the motor temperature, automatic control is achieved. For example, when the motor temperature is less than the first set value and the motor does not need to be cooled, the first solenoid valve 8, the second solenoid valve 9, and the third solenoid valve 11 can be controlled to close; when the motor temperature is greater than or equal to the first set value and less than the second set value, the first solenoid valve 8 can be controlled to open, and the water curtain 4 is used to form water mist to cool the air at the suction port of the cooling fan 6; when the motor temperature is greater than or equal to the second set value, the first solenoid valve 8, the second solenoid valve 9, and the third solenoid valve 11 can be controlled to open, so as to use the water curtain 4 and the spray gun 5 to form water mist to cool the air at the suction port of the cooling fan 6.

[0034] Further, a float ball 18 is provided at a preset height of the reservoir 1. The float ball 18 is connected to the controller. When the water level in the reservoir 1 reaches the position of the float ball 18, the controller controls the fourth solenoid valve 17 to close; when the water level in the reservoir 1 does not reach the position of the float ball 18, the controller controls the fourth solenoid valve 17 to open. By setting the float ball 18, the automatic water replenishment function of the reservoir 1 can be realized.

[0035] Based on the above embodiments, the pipeline between the first ball valve 7 and the submersible pump 2 in the embodiments of the present application is connected to the reservoir 1 through the sixth ball valve 19. The purposes of setting the sixth ball valve 19 are: on the one hand, it can be used to check whether the submersible pump 2 is damaged; on the other hand, the sixth ball valve 19 can be opened according to actual needs to split the water volume delivered to the water curtain 4 and the spray gun 5.

[0036] Based on the above embodiments, the embodiments of the present application further include a recovery pool 20 and a return ditch 21. The recovery pool 20 is located below the water curtain 4. The return ditch 21 is respectively connected to the recovery pool 20 and the reservoir 1, and the recovery pool 20 is higher than the reservoir 1. By setting the recovery pool 20 and the return ditch 21, the cooling water can be recovered and recycled to the reservoir 1.

[0037] Further, a filter is connected to the inlet of the submersible pump 2. The filter is used to filter impurities in the reservoir 1. By setting the filter to filter impurities, damage to the submersible pump 2 can be avoided, and the service life of the submersible pump 2 can be improved.

[0038] To better understand the motor cooling system of the present application, the control method of the motor cooling system will be further introduced in combination with Figure 1 the following.

[0039] Figure 1 The first ball valve 7, the second ball valve 12, the third ball valve 14 and the fifth ball valve 16 in [[ ]] are usually in the open state, and the fourth ball valve 15 and the sixth ball valve 19 are usually in the closed state. When the fourth solenoid valve 17 is opened and the water storage tank 1 is filled with water until it reaches the limit of the float ball 18, the fourth solenoid valve 17 is controlled to close. When the motor is working, when the controller obtains that the motor temperature exceeds the preset value, that is, when the motor needs to be cooled down, the controller controls the submersible pump 2, the first solenoid valve 8, the second solenoid valve 9 and the third solenoid valve 11 to open. The submersible pump 2 pumps the water in the water storage tank 1 to the water curtain 4 and the spray gun 5. The water curtain 4 and the spray gun 5 form water mist to cool the air at the suction port of the cooling fan 6. The cold air is filtered by the filter screen 3 and then pumped by the fan to cool the motor; when the motor does not need to be cooled down, the controller controls the submersible pump 2, the first solenoid valve 8, the second solenoid valve 9 and the third solenoid valve 11 to close. When the submersible pump 2 fails, the fourth ball valve 15 is opened to convey the production water to the water curtain 4 and the spray gun 5 to realize temporary water supply and ensure the operation of the system. When the external environmental temperature is very high, especially in summer, ice cubes can be put into the water storage tank 1 to further improve the heat dissipation effect.

[0040] The present application uses a water curtain and a spray gun to atomize water to cool the air at the suction port of the cooling fan, thereby improving the air-cooling effect and reducing the influence of environmental factors on the cooling effect. The system is connected to the production water pipe and has an emergency water supply function, and can also operate in case of a sudden failure of the submersible pump. The system has a circulation function and can reduce water resource waste. By setting solenoid valves and interlocking with the motor temperature, automatic control is achieved. A filter screen is installed at the suction port of the cooling fan to isolate water vapor and avoid damaging the motor.

[0041] In addition, the motor cooling system of the present application has a simple structure, is easy to implement and maintain; it can be based on a conventional air-cooling system with minor modifications, and has strong reversibility and low transformation cost; compared with the conventional air-cooling system, it has a stronger cooling effect, small investment, quick results, and is suitable for the upgrade and transformation of existing air-cooling systems.

[0042] The above has introduced in detail a motor cooling system provided by the present application. The various embodiments in the specification are described in a progressive manner, and the key points of each embodiment are the differences from other embodiments. The same and similar parts among the various embodiments can be referred to each other. It should be noted that for those of ordinary skill in the art in the technical field of the present application, without departing from the principle of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

[0043] It should also be noted that in this specification, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

Claims

1. A motor cooling system, characterized in that, Including: A water storage tank (1), a submersible pump (2), a filter screen (3), a water curtain (4), a spray gun (5) and a cooling fan (6); The submersible pump (2) is arranged in the water storage tank (1). The submersible pump (2) is respectively connected with the water curtain (4) and the spray gun (5) through pipelines. The filter screen (3) is arranged at the suction port of the cooling fan (6). The water curtain (4) is arranged on the opposite side of the filter screen (3). The spray gun (5) is used to spray water mist between the filter screen (3) and the water curtain (4). The water curtain (4) and the spray gun (5) are used to form water mist to cool the air at the suction port of the cooling fan (6). The filter screen (3) is used to isolate the water vapor in the cold air. The air outlet of the cooling fan (6) faces the motor.

2. The motor cooling system according to claim 1, wherein, The submersible pump (2) is sequentially connected with the water curtain (4) through a first ball valve (7) and a first solenoid valve (8). The pipeline between the first ball valve (7) and the first solenoid valve (8) is connected with the spray gun (5) through a second solenoid valve (9). A third solenoid valve (11) and a second ball valve (12) are arranged on the compressed air pipeline (10) connected with the spray gun (5).

3. The motor cooling system according to claim 2, wherein, A production water pipeline (13) is connected to the pipeline between the first solenoid valve (8) and the first ball valve (7). A third ball valve (14) and a fourth ball valve (15) are arranged on the production water pipeline (13).

4. The motor cooling system according to claim 3, wherein, The pipeline between the third ball valve (14) and the fourth ball valve (15) is connected with the water storage tank (1) through a fifth ball valve (16) and a fourth solenoid valve (17).

5. The motor cooling system according to claim 4, wherein It also includes a controller. A temperature detection device is arranged at the motor. The temperature detection device is used to detect the motor temperature. The controller is respectively connected with the temperature detection device, the first solenoid valve (8), the second solenoid valve (9), the third solenoid valve (11), the fourth solenoid valve (17) and the submersible pump (2).

6. The motor cooling system according to claim 5, characterized in that, A float ball (18) is arranged at a preset height of the water storage tank (1). The float ball (18) is connected with the controller.

7. The motor cooling system according to claim 2, characterized in that, The pipeline between the first ball valve (7) and the submersible pump (2) is connected with the water storage tank (1) through a sixth ball valve (19).

8. The motor cooling system according to claim 1, characterized in that, It also includes a recovery water tank (20) and a return ditch (21). The recovery water tank (20) is located below the water curtain (4). The return ditch (21) is respectively connected with the recovery water tank (20) and the water storage tank (1), and the recovery water tank (20) is higher than the water storage tank (1).

9. The motor cooling system according to claim 1, wherein The number of the water curtains (4) is multiple, and the multiple water curtains (4) are all arranged in parallel with the filter screen (3).

10. The motor cooling system according to any one of claims 1 to 9, characterized in that A filter is connected to the water inlet of the submersible pump (2). The filter is used to filter impurities in the water storage tank (1).

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