Cooling device for water circulating pump of central air conditioner

Abstract

The invention relates to the technical field of water pumps, in particular to a central air conditioner water circulating pump cooling device which comprises a base, a heat preservation cover is fixedly installed on one side of the top of the base, a water circulating pump is placed on the other side of the top of the base, and one end of the water circulating pump is located at an opening of the heat preservation cover. A cooling mechanism used for cooling the water circulating pump is arranged in the heat preservation cover, and a heat supply mechanism used for preheating the water circulating pump is arranged on one side of the cooling mechanism. Clear water passing through the heat conduction box is matched with the heat conduction box to take away heat on the side wall of a motor of the water circulation pump, so that the effect of cooling the water circulation pump is achieved, meanwhile, in the process that the extending end of the air cylinder extends to the longest, the heat conduction sleeve is matched with the cooling fins making contact with the heat conduction sleeve to cool the surface of the water circulation pump, and meanwhile the cooling effect is achieved. The air flow blown out by the fan passes through the heat dissipation fins and dries water accumulated at dead corners between the motor of the water circulation pump and the heat dissipation fins, so that the service life of the water circulation pump is prolonged, and the energy consumption is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of water pumps, in particular to a central air-conditioning water circulation pump cooling device. Background Art

[0002] As a large public building, the airport has a large flow of people and open space, and has high requirements for the indoor environment. The integrated central air-conditioning system can provide stable and uniform cooling or heating effects for large areas of space, ensuring that the temperature, humidity and other environmental parameters of each area in the airport are kept within an appropriate range; the main function of the central air-conditioning water circulation pump in the integrated air-conditioning unit is to transport the coolant from the central air-conditioning unit to each branch, thereby providing a warm or cooling environment indoors, and the water pump motor will heat up during long-term operation, and if it is not cooled in time, the motor will burn out;

[0003] For example, in the prior art with publication number CN220648568U, the device in this scheme can absorb the heat emitted by the motor of the water circulation pump by arranging a left heat-conducting shell, a right heat-conducting shell and a heat sink, and connect the left and right heat-conducting shells with the water inlet and outlet of the water circulation pump through a shunt pipe and a header, and the water flowing through the left and right heat-conducting shells continuously takes away the heat on the heat-conducting shells and the heat sink;

[0004] During the operation of the existing water circulation pump, a small amount of water is likely to leak from the connection between the water circulation pump and the pipeline. The water will accumulate in the dead corner between the water circulation pump motor and the cooling fins, which is difficult to effectively clean and easily causes corrosion to the water circulation pump. At the same time, the water circulation pump needs to be preheated before working. The existing preheating method is to gradually increase the rotation speed and flow rate so that the water circulation pump reaches a predetermined operating temperature. However, there is a temperature difference between the outside and the inside of the water circulation pump, and it takes more time and energy to make the outside of the water circulation pump reach the predetermined temperature. Summary of the invention

[0005] The technical problems solved by this solution are:

[0006] (1) How to solve the problem that water will accumulate in the dead corner between the water circulation pump motor and the cooling fins, which is difficult to effectively clean and easily causes corrosion to the water circulation pump;

[0007] (2) How to solve the problem that the existing preheating method is to heat up the inside of the water circulation pump, while there is a temperature difference between the outside and inside of the water circulation pump, and it takes more time and energy to make the outside of the water circulation pump reach the predetermined temperature.

[0008] The object of the present invention can be achieved by the following technical scheme: A central air-conditioning water circulation pump cooling device, comprising a base, a heat preservation cover is fixedly installed on one side of the top of the base, and a water circulation pump is placed on the other side of the top of the base, one end of the water circulation pump is located at the opening of the heat preservation cover, a cooling mechanism for cooling the water circulation pump is arranged inside the heat preservation cover, and a heating mechanism for preheating the water circulation pump is arranged on one side of the cooling mechanism;

[0009] The cooling mechanism comprises a heat-conducting sleeve, which is arranged horizontally. A heat-conducting box is fixedly installed on the inner wall of the heat-conducting sleeve at one side away from the water circulation pump. The top of the heat-conducting box is connected to a return hose, and the bottom of the heat-conducting box is connected to a water inlet hose.

[0010] A further technical improvement of the present invention is that a water tank is arranged on the top of the heat preservation cover, a water pump is fixedly installed on the front of the water tank, the input end of the water inlet hose passes through the heat preservation cover and is connected with the output end of the water pump, and the output end of the water return hose passes through the heat preservation cover and is connected with the top of the water tank.

[0011] A further technical improvement of the present invention is that an L-shaped rod is rotatably provided on the inner wall of the heat-insulating cover above the heat-conducting sleeve, a fan is fixedly installed on one end of the L-shaped rod, a horizontally arranged cylinder is also fixedly installed on the inner wall of the heat-insulating cover, the protruding end of the cylinder is fixedly connected to the heat-conducting sleeve, and a driving wheel is rotatably provided on the protruding end of the cylinder, and the driving wheel is rollingly connected to the L-shaped rod.

[0012] A further technical improvement of the present invention lies in that: the inner wall size of the heat-conducting sleeve corresponds to the size of the water circulation pump, and sliders are fixedly installed on the front and rear outer walls of the heat-conducting sleeve, and slide grooves are opened on the inner walls of the front and rear sides of the heat-insulating cover, and the two sliders are slidably connected with the corresponding slide grooves respectively. A plurality of rollers are also rotatably arranged at the bottom of the inner wall of the heat-conducting sleeve, and the rollers are rollingly connected with the base; by controlling the extended end of the cylinder to extend to the longest, the heat dissipation fins of the water circulation pump motor are completely located in the heat-conducting sleeve. At this time, the heat-conducting box contacts the side wall of the water circulation pump motor, and the clean water in the water tank is injected into the heat-conducting box through the water inlet hose through the water pump, and then the clean water passing through the heat-conducting box is collected back into the water tank through the return hose, and the clean water passing through the heat-conducting box will cooperate with the heat-conducting box to discharge the clean water on the side wall of the water circulation pump motor. The heat is taken away, thereby playing the role of cooling the water circulation pump. At the same time, when the extended end of the cylinder is extended to the longest, the pushing wheel rolls to a section of the L-shaped rod away from the fan. During this process, the fan does not move, and the moving wheel rolls to the end of the L-shaped frame away from the lever. During this process, the L-shaped frame rotates, so that the blocking block cooperates with the sealing plate to move downward, and the second air vent is blocked to prevent the residual heat therein from affecting the efficiency of cooling the water circulation pump. The surface of the water circulation pump is cooled by the heat conductive sleeve and the heat dissipation fins in contact with it. At the same time, the airflow blown out by the fan passes through between the heat dissipation fins, quickly drying the moisture accumulated in the dead corner between the water circulation pump motor and the heat dissipation fins, avoiding corrosion to the water circulation pump, extending the service life of the water circulation pump, and reducing energy consumption.

[0013] A further technical improvement of the present invention is that the heating mechanism includes a mounting plate fixedly connected to the heat preservation cover, a longitudinally arranged guide rod is fixedly connected between the mounting plate and the base, a blocking block is provided on the outer wall sliding sleeve of the guide rod, and the blocking block is slidably connected to the inner wall of the heat preservation cover.

[0014] A further technical improvement of the present invention is that a first air hole and a second air hole are provided on the inner wall of the heat preservation cover below the mounting plate, a plurality of electric heating wires are fixedly installed on the inner wall of the second air hole, a sealing plate is fixedly embedded on the side wall of the shielding block away from the heat-conducting sleeve, and the sizes of the first air hole and the second air hole are both smaller than the sizes of the sealing plate.

[0015] A further technical improvement of the present invention is that an L-shaped frame is rotatably connected to the inner wall of the heat preservation cover between the blocking block and the heat-conducting sleeve, an adjustment slot is provided at one end of the L-shaped frame, and the back side of the blocking block is slidably connected to the adjustment slot via a lever; the extended end of the cylinder is controlled to extend from the shortest to half the length, so that the heat-conducting sleeve is pushed to move so that one end of the inner wall of the heat-conducting sleeve contacts the heat dissipation fins of the water circulation pump motor, and at this time, the driving wheel rolls from a section of the L-shaped rod close to the fan to the middle thereof, and due to the influence of gravity, the L-shaped rod flips over so that the fan is arranged toward the inner wall of the heat-conducting sleeve, and at the same time, the moving wheel is moved from the end of the L-shaped frame close to the lever The L-shaped frame rolls to its middle part, the L-shaped frame does not move, and the blocking block cooperates with the sealing plate to block the first air vent. Since the several electric heating wires in the second air vent heat the airflow entering the thermal insulation cover, the fan injects the hot air flow into the heat-conducting sleeve. While the hot air flow passes through between the heat dissipation fins, the heat of the hot air flow is transferred to the surface of the water circulation pump, and the thermal insulation cover is cooperated to prevent the heat from dissipating quickly, reduce the energy consumption of heating the surface of the water circulation pump, assist the internal preheating of the water circulation pump itself, avoid the temperature difference between the outside and the inside of the water circulation pump, and at the same time speed up the preheating speed of the water circulation pump, further reducing energy consumption.

[0016] A further technical improvement of the present invention is that: one end of the heat-conducting sleeve facing the shielding block is fixedly connected to a support frame, one end of the support frame is rotatably provided with a moving wheel, and the moving wheel is rollingly connected to the L-shaped frame.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] When the present invention is in use, the extended end of the cylinder is controlled to extend to the longest position, so that the heat dissipation fins of the water circulation pump motor are completely located in the heat conduction sleeve. At this time, the heat conduction box contacts the side wall of the water circulation pump motor, and the clean water in the water tank is injected into the heat conduction box through the water inlet hose by the water pump, and then the clean water passing through the heat conduction box is collected back into the water tank through the return hose. The clean water passing through the heat conduction box will cooperate with the heat conduction box to take away the heat on the side wall of the water circulation pump motor, thereby playing a role in cooling the water circulation pump. At the same time, when the extended end of the cylinder is extended to the longest position, the push wheel rolls to a section of the L-shaped rod away from the fan, and the pass During the process, the fan does not move, but the moving wheel rolls to the end of the L-shaped frame away from the lever. During the process, the L-shaped frame rotates, so that the blocking block cooperates with the sealing plate to move downward, blocking the second air vent to prevent the residual heat therein from affecting the cooling efficiency of the water circulation pump. The surface of the water circulation pump is cooled by the heat conductive sleeve and the heat dissipation fins in contact with it. At the same time, the airflow blown by the fan passes through the heat dissipation fins, quickly drying the moisture accumulated in the dead corner between the water circulation pump motor and the heat dissipation fins, avoiding corrosion to the water circulation pump, extending the service life of the water circulation pump, and reducing energy consumption.

[0019] When the present invention is in use, the extended end of the cylinder is controlled to extend from the shortest to half the length, so that the heat conductive sleeve is pushed to move, so that one end of the inner wall of the heat conductive sleeve contacts the heat dissipation fins of the water circulation pump motor. At this time, the driving wheel rolls from a section of the L-shaped rod close to the fan to the middle thereof. Due to the influence of gravity, the L-shaped rod flips over, so that the fan is arranged toward the inner wall of the heat conductive sleeve. At the same time, the moving wheel rolls from the end of the L-shaped frame close to the lever to the middle thereof, and the L-shaped frame does not move. The shielding block cooperates with the sealing plate to block the first air vent. Since the several electric heating wires in the second air vent heat the airflow entering the heat preservation cover, the fan injects the hot air flow into the heat conductive sleeve. While the hot air flow passes between the heat dissipation fins, the heat of the hot air flow is transferred to the surface of the water circulation pump. The heat preservation cover is cooperated to avoid rapid dissipation of heat, thereby reducing the energy consumption of heating the surface of the water circulation pump, assisting the internal preheating of the water circulation pump itself, avoiding the temperature difference between the outside and the inside of the water circulation pump, and at the same time accelerating the preheating speed of the water circulation pump, thereby further reducing the energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0021] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the cooling mechanism structure of the present invention;

[0024] Figure 4 It is a three-dimensional schematic diagram of the local structure of the cooling mechanism of the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of the heating mechanism of the present invention;

[0026] Figure 6 It is a three-dimensional schematic diagram of the back structure of the shielding block of the present invention.

[0027] In the figure: 1. water tank; 2. water pump; 3. base; 4. water circulation pump; 5. heat preservation cover; 6. heating mechanism; 7. first air vent; 8. second air vent; 9. cooling mechanism; 61. guide rod; 62. moving wheel; 63. support frame; 64. L-shaped frame; 65. shielding block; 66. mounting plate; 67. lever; 68. adjusting slot; 91. cylinder; 92. fan; 93. water inlet hose; 94. roller; 95. heat transfer box; 96. heat transfer sleeve; 97. L-shaped rod; 98. driving wheel; 99. return hose. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-Figure 6 As shown, a central air-conditioning water circulation pump cooling device includes a base 3, a thermal insulation cover 5 is fixedly installed on one side of the top of the base 3, and a water circulation pump 4 is placed on the other side of the top of the base 3, one end of the water circulation pump 4 is located at the opening of the thermal insulation cover 5, and a cooling mechanism 9 for cooling the water circulation pump 4 is arranged inside the thermal insulation cover 5, and a heating mechanism 6 for preheating the water circulation pump 4 is arranged on one side of the cooling mechanism 9.

[0030] See also Figure 2 and Figure 3 As shown, the above-mentioned cooling mechanism 9 includes a heat-conducting sleeve 96, which is arranged horizontally. A heat-conducting box 95 is fixedly installed on the side of the inner wall of the heat-conducting sleeve 96 away from the water circulation pump 4. The top of the heat-conducting box 95 is connected to a return hose 99, and the bottom of the heat-conducting box 95 is connected to a water inlet hose 93.

[0031] See also Figure 2 and Figure 3 As shown, a water tank 1 is arranged on the top of the above-mentioned insulation cover 5, a water pump 2 is fixedly installed on the front of the water tank 1, the input end of the water inlet hose 93 passes through the insulation cover 5 and is connected to the output end of the water pump 2, and the output end of the return water hose 99 passes through the insulation cover 5 and is connected to the top of the water tank 1.

[0032] See also Figure 3 and Figure 4 As shown, an L-shaped rod 97 is rotatably provided on the inner wall of the heat-insulating cover 5 above the above-mentioned heat-conducting sleeve 96, and a fan 92 is fixedly installed on one end of the L-shaped rod 97. A horizontally arranged cylinder 91 is also fixedly installed on the inner wall of the heat-insulating cover 5, and the extended end of the cylinder 91 is fixedly connected to the heat-conducting sleeve 96, and a driving wheel 98 is also rotatably provided on the extended end of the cylinder 91, and the driving wheel 98 is rollingly connected to the L-shaped rod 97.

[0033] See also Figure 2 and Figure 3As shown, the inner wall size of the above-mentioned heat-conducting sleeve 96 corresponds to the size of the water circulation pump 4, and sliders are fixedly installed on the front and rear outer walls of the heat-conducting sleeve 96, and slide grooves are opened on the inner walls of the front and rear sides of the heat-insulating cover 5. The two sliders are slidably connected with the corresponding slide grooves respectively. The bottom of the inner wall of the heat-conducting sleeve 96 is also rotatably provided with a plurality of rollers 94, and the rollers 94 are rollingly connected with the base 3; by controlling the extended end of the cylinder 91 to extend to the longest, the heat dissipation fins of the water circulation pump 4 motor are completely located in the heat-conducting sleeve 96. At this time, the heat-conducting box 95 contacts the side wall of the water circulation pump 4 motor, and the clean water in the water tank 1 is injected into the heat-conducting box 95 through the water inlet hose 93 through the water pump 2, and then the clean water passing through the heat-conducting box 95 is collected back into the water tank 1 through the return hose 99. The clean water passing through the heat-conducting box 95 will cooperate with the heat-conducting box 95 to take away the heat on the side wall of the water circulation pump 4 motor. Thereby, the water circulation pump 4 is cooled. At the same time, when the extended end of the cylinder 91 is extended to the longest, the push wheel 98 rolls to a section of the L-shaped rod 97 away from the fan 92. During this process, the fan 92 does not move, and the moving wheel 62 rolls to the end of the L-shaped frame 64 away from the lever 67. During this process, the L-shaped frame 64 rotates, so that the blocking block 65 cooperates with the sealing plate to move downward, blocking the second air vent 8 to prevent the residual heat therein from affecting the cooling efficiency of the water circulation pump 4. The surface of the water circulation pump 4 is cooled by the heat conducting sleeve 96 and the heat dissipation fins in contact therewith. At the same time, the airflow blown out by the fan 92 passes through the heat dissipation fins, quickly drying the moisture accumulated in the dead corner between the motor of the water circulation pump 4 and the heat dissipation fins, thereby avoiding corrosion to the water circulation pump 4, extending the service life of the water circulation pump 4, and reducing energy consumption.

[0034] See also Figure 2 and Figure 5 As shown, the above-mentioned heating mechanism 6 includes a mounting plate 66 fixedly connected to the heat preservation cover 5, a longitudinally arranged guide rod 61 is fixedly connected between the mounting plate 66 and the base 3, and a blocking block 65 is provided on the outer wall sliding sleeve of the guide rod 61, and the blocking block 65 is slidably connected to the inner wall of the heat preservation cover 5.

[0035] See also Figure 5 and Figure 6 As shown, a first air hole 7 and a second air hole 8 are provided on the inner wall of the heat preservation cover 5 below the above-mentioned mounting plate 66, a plurality of electric heating wires are fixedly installed on the inner wall of the second air hole 8, and a sealing plate is fixedly embedded on the side wall of the shielding block 65 away from the heat-conducting sleeve 96, and the sizes of the first air hole 7 and the second air hole 8 are both smaller than the sizes of the sealing plate.

[0036] See also Figure 5 and Figure 6As shown, an L-shaped frame 64 is rotatably connected on the inner wall of the heat preservation cover 5 between the above-mentioned shielding block 65 and the heat-conducting sleeve 96, and an adjustment groove 68 is opened at one end of the L-shaped frame 64. The back of the shielding block 65 is slidably connected to the adjustment groove 68 through a lever 67; by controlling the extended end of the cylinder 91 to extend from the shortest to half the length, the heat-conducting sleeve 96 is pushed to move, so that one end of the inner wall of the heat-conducting sleeve 96 contacts the heat dissipation fins of the water circulation pump 4 motor. At this time, the driving wheel 98 rolls from a section of the L-shaped rod 97 close to the fan 92 to the middle thereof. Due to the influence of gravity, the L-shaped rod 97 flips over, so that the fan 92 is set toward the inner wall of the heat-conducting sleeve 96. At the same time, the moving wheel 62 is moved from the L-shaped frame 64 close to the fan 92. The end of the lever 67 rolls to the middle thereof, the L-shaped frame 64 does not move, the shielding block 65 cooperates with the sealing plate to block the first air vent 7, and since the several electric heating wires in the second air vent 8 heat the airflow entering the thermal insulation cover 5, the fan 92 injects the hot air flow into the heat-conducting sleeve 96, and while the hot air flow passes between the heat dissipating fins, the heat of the hot air flow is transferred to the surface of the water circulation pump 4, and cooperates with the thermal insulation cover 5 to prevent the heat from dissipating quickly, reduce the energy consumption of heating the surface of the water circulation pump 4, assist the internal preheating of the water circulation pump 4 itself, avoid the temperature difference between the outside and the inside of the water circulation pump 4, and at the same time speed up the preheating speed of the water circulation pump 4, further reducing energy consumption.

[0037] See also Figure 2 and Figure 5 As shown, one end of the heat-conducting sleeve 96 facing the shielding block 65 is fixedly connected to a support frame 63 , and one end of the support frame 63 is rotatably provided with a moving wheel 62 , and the moving wheel 62 is rollingly connected to the L-shaped frame 64 .

[0038] Working principle: When the present invention is used, first, Figure 2 and Figure 3 As shown, when the water circulation pump 4 is turned on for slow preheating, the fan 92 and several electric heating wires are turned on at the same time, and the extended end of the cylinder 91 is controlled to extend from the shortest to half the length, pushing the heat-conducting sleeve 96 to move, so that one end of the inner wall of the heat-conducting sleeve 96 contacts the heat dissipation fins of the motor of the water circulation pump 4. At this time, the driving wheel 98 rolls from a section of the L-shaped rod 97 close to the fan 92 to the middle thereof. Due to the influence of gravity, the L-shaped rod 97 flips over, so that the fan 92 is arranged toward the inner wall of the heat-conducting sleeve 96. At the same time, as shown in FIG. Figure 3 and Figure 5As shown, the moving wheel 62 rolls from the end of the L-shaped frame 64 close to the lever 67 to the middle thereof, the L-shaped frame 64 does not move, the blocking block 65 cooperates with the sealing plate to block the first air hole 7, and the plurality of electric heating wires in the second air hole 8 heat the airflow entering the heat preservation cover 5, so that the fan 92 injects the hot air flow into the heat-conducting sleeve 96, and the hot air flow passes through the heat dissipation fins while transferring the heat of the hot air flow to the surface of the water circulation pump 4, and cooperates with the heat preservation cover 5 to avoid rapid heat dissipation, reduce the energy consumption of heating the surface of the water circulation pump 4, assist the internal preheating of the water circulation pump 4 itself, avoid the temperature difference between the outside and the inside of the water circulation pump 4, and at the same time speed up the preheating speed of the water circulation pump 4, further reduce the energy consumption; as shown in FIG. Figure 3 , Figure 5 and Figure 6 As shown, after the preheating of the water circulation pump 4 is completed, several electric heating wires are turned off in time, and the water pump 2 is turned on at the same time. When the water circulation pump 4 works normally, the extended end of the control cylinder 91 is extended to the longest, as shown in FIG. Figure 2-Figure 4 As shown, the heat sink fins of the water circulation pump 4 motor are completely located in the heat-conducting sleeve 96. At this time, the heat-conducting box 95 contacts the side wall of the water circulation pump 4 motor. The clean water in the water tank 1 is injected into the heat-conducting box 95 through the water pump 2 through the water inlet hose 93, and then the clean water passing through the heat-conducting box 95 is collected back into the water tank 1 through the return hose 99. The clean water passing through the heat-conducting box 95 will cooperate with the heat-conducting box 95 to take away the heat on the side wall of the water circulation pump 4 motor, thereby playing a role in cooling the water circulation pump 4. At the same time, Figure 3 and Figure 5 As shown, when the extended end of the cylinder 91 is extended to the longest, the pushing wheel 98 rolls to a section of the L-shaped rod 97 away from the fan 92. During this process, the fan 92 does not move, and the moving wheel 62 rolls to the end of the L-shaped frame 64 away from the lever 67. During this process, the L-shaped frame 64 rotates, so that the blocking block 65 cooperates with the sealing plate to move downward, blocking the second air vent 8 to prevent the residual heat therein from affecting the efficiency of cooling the water circulation pump 4. The surface of the water circulation pump 4 is cooled by the heat conductive sleeve 96 and the heat dissipation fins in contact therewith. At the same time, the airflow blown out by the fan 92 passes through the heat dissipation fins, quickly drying the moisture accumulated in the dead corner between the motor of the water circulation pump 4 and the heat dissipation fins, thereby avoiding corrosion to the water circulation pump 4, extending the service life of the water circulation pump 4, and reducing energy consumption.

[0039] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A central air conditioning water circulation pump cooling device, comprising a base (3), a heat preservation cover (5) fixedly mounted on one side of the top of the base (3), and a water circulation pump (4) placed on the other side of the top of the base (3), characterized in that: One end of the water circulation pump (4) is located at the opening of the heat preservation cover (5), a cooling mechanism (9) for cooling the water circulation pump (4) is arranged inside the heat preservation cover (5), and a heating mechanism (6) for preheating the water circulation pump (4) is arranged on one side of the cooling mechanism (9); The cooling mechanism (9) comprises a heat-conducting sleeve (96), a heat-conducting box (95) being fixedly mounted on a side of the inner wall of the heat-conducting sleeve (96) away from the water circulation pump (4), the top of the heat-conducting box (95) being connected to a water return hose (99), and the bottom of the heat-conducting box (95) being connected to a water inlet hose (93).

2. A central air conditioning water circulation pump cooling device according to claim 1, characterized in that: A water tank (1) is arranged on the top of the heat-insulating cover (5), a water pump (2) is fixedly installed on the front of the water tank (1), the input end of the water inlet hose (93) is connected to the output end of the water pump (2), and the output end of the water return hose (99) is connected to the top of the water tank (1).

3. A central air conditioning water circulation pump cooling device according to claim 1, characterized in that: An L-shaped rod (97) is rotatably provided on the inner wall of the heat-insulating cover (5) above the heat-conducting sleeve (96), and a fan (92) is fixedly installed on one end of the L-shaped rod (97). A cylinder (91) is also fixedly installed on the inner wall of the heat-insulating cover (5), and the protruding end of the cylinder (91) is fixedly connected to the heat-conducting sleeve (96). A driving wheel (98) is also rotatably provided on the protruding end of the cylinder (91), and the driving wheel (98) is rollingly connected to the L-shaped rod (97).

4. A central air conditioning water circulation pump cooling device according to claim 1, characterized in that: The inner wall size of the heat-conducting sleeve (96) corresponds to the size of the water circulation pump (4), and a plurality of rollers (94) are rotatably arranged at the bottom of the inner wall of the heat-conducting sleeve (96), and the rollers (94) are rollingly connected to the base (3).

5. A central air conditioning water circulation pump cooling device according to claim 1, characterized in that: The heating mechanism (6) comprises a mounting plate (66) fixedly connected to the heat-insulating cover (5); a guide rod (61) is fixedly connected between the mounting plate (66) and the base (3); a shielding block (65) is slidably sleeved on the outer wall of the guide rod (61); and the shielding block (65) is slidably connected to the inner wall of the heat-insulating cover (5).

6. A central air conditioning water circulation pump cooling device according to claim 5, characterized in that: A first air vent (7) and a second air vent (8) are provided on the inner wall of the heat preservation cover (5) below the mounting plate (66); a plurality of electric heating wires are fixedly installed on the inner wall of the second air vent (8); a sealing plate is fixedly embedded on the side wall of the shielding block (65) away from the heat-conducting sleeve (96); the sizes of the first air vent (7) and the second air vent (8) are both smaller than the sizes of the sealing plate.

7. A central air-conditioning water circulation pump cooling device according to claim 5, characterized in that: An L-shaped frame (64) is rotatably connected to the inner wall of the heat-insulating cover (5) between the shielding block (65) and the heat-conducting sleeve (96); an adjustment groove (68) is provided at one end of the L-shaped frame (64); and the back side of the shielding block (65) is slidably connected to the adjustment groove (68) via a lever (67).

8. A central air-conditioning water circulation pump cooling device according to claim 1, characterized in that: One end of the heat-conducting sleeve (96) facing the shielding block (65) is fixedly connected to a support frame (63), one end of the support frame (63) is rotatably provided with a moving wheel (62), and the moving wheel (62) is rollingly connected to the L-shaped frame (64).

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