Water pump motor cooling system

Abstract

The embodiment of the invention relates to the technical field of motor heat dissipation, and discloses a water pump motor cooling system which comprises a condensate water collecting device and a water pump motor cooling device. The condensate water collecting device is used for collecting condensate water of the central air conditioner and conveying the condensate water to the water pump motor cooling device; the water pump motor cooling device comprises a water pump motor, a water pump body, a pump shaft, a first water cooling shell composed of an inner shell and an outer shell, and a second water cooling shell arranged outside the pump shaft. A first cavity used for containing condensate water is formed between the inner shell and the outer shell, and a water pump motor is arranged in the inner shell. The condensate water in the first cavity is used for cooling the water pump motor; the water pump motor is connected with the water pump body through a pump shaft and used for driving the water pump body to supply water or pump water. The second water cooling shell is used for containing condensate water and cooling the pump shaft. In this way, the water pump motor and the pump shaft are cooled at the same time through condensate water.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of motor heat dissipation, and in particular to a water pump motor cooling system. Background Art

[0002] A water pump is a machine used to transport liquids or pressurize liquids. Domestic water pumps are used in various building scenarios to provide domestic water for buildings. The working temperature of the water pump motor cannot exceed 80°C. If this temperature is exceeded, the efficiency of the motor will decrease or even burn the motor. For this reason, the prior art usually uses natural cooling or fan cooling for water pump motors. A few large water pump motors have water cooling. However, the inventor of this application found that the heat dissipation structure design of the traditional water pump motor is not reasonable enough. It can only transfer heat to the outside through the motor housing, and the heat dissipation efficiency is low. The shaft cannot be effectively cooled. In addition, the prior art uses tap water at room temperature for water cooling, and its heat dissipation effect is not ideal. Summary of the invention

[0003] In order to solve the technical problems that the heat dissipation structure design of the existing water pump motor is unreasonable and the heat dissipation effect is not ideal, an embodiment of the present invention provides a water pump motor cooling system.

[0004] According to one aspect of an embodiment of the present invention, a water pump motor cooling system is provided, which includes a condensate collecting device and a water pump motor cooling device; the condensate collecting device is used to collect condensate from a central air conditioner and transport the condensate to the water pump motor cooling device; wherein the water pump motor cooling device includes a water pump motor, a water pump body, a pump shaft, a first water-cooled shell composed of an inner shell and an outer shell, and a second water-cooled shell arranged outside the pump shaft; a first cavity for accommodating the condensate is formed between the inner shell and the outer shell, and the water pump motor is arranged in the inner shell; the water pump motor cooling device is used to cool the water pump motor according to the condensate in the first cavity; the water pump body is arranged outside the first water-cooled shell, and the water pump motor is connected to the water pump body through the pump shaft, so as to drive the water pump body to supply or pump water; the second water-cooled shell is used to accommodate the condensate to cool the pump shaft.

[0005] In an optional manner, the second water-cooling housing includes a cooling pipe and a lubricating oil chamber; the lubricating oil chamber for accommodating the lubricating oil is arranged outside the pump shaft, and the lubricating oil is used to cool the pump shaft; the cooling pipe for accommodating the condensed water is arranged in the lubricating oil chamber, and the lubricating oil is cooled by the condensed water.

[0006] In an optional manner, the water pump motor cooling device also includes a first water inlet nozzle, a second water inlet nozzle, a first water outlet and a second water outlet; the first cavity is respectively provided with the first water inlet nozzle and the first water outlet, and the cooling pipe is respectively provided with the second water inlet nozzle and the second water outlet; the condensed water collecting device transports condensed water to the first cavity and the cooling pipe through the first water inlet nozzle and the second water inlet nozzle, respectively, and the first cavity and the cooling pipe discharge the condensed water through the first water outlet and the second water outlet, respectively.

[0007] In an optional manner, the water pump motor cooling device also includes a water separator and a water collector; the cooling pipe includes at least two sub-cooling pipes, and the water separator and the water collector are connected through the sub-cooling pipe; the water separator is arranged at the top of the lubricating oil chamber and is connected to the second water inlet nozzle, and is used to transfer condensed water to the water collector through the sub-cooling pipe; the water collector is arranged at the bottom of the lubricating oil chamber and is connected to the second water outlet, and is used to receive the condensed water transmitted by the sub-cooling pipe, and discharge the condensed water through the second water outlet.

[0008] In an optional manner, the motor cooling device also includes a temperature sensor, a first solenoid valve and a second solenoid valve electrically connected to the water pump motor; the temperature sensor is used to detect the temperature of the water pump motor; the first solenoid valve is arranged on the side of the condensed water collecting device close to the first water inlet nozzle; the first solenoid valve is used to adjust the amount of condensed water in the first cavity according to the temperature of the water pump motor; the second solenoid valve is arranged on the side of the condensed water collecting device close to the second water inlet nozzle; the second solenoid valve is used to adjust the amount of condensed water in the cooling pipe according to the temperature of the water pump motor.

[0009] In an optional embodiment, the condensate collection device includes a central air conditioner and a cold water tank; the central air conditioner generates condensate when working, and transmits the condensate to the cold water tank through a condensate collecting pipe; the cold water tank is respectively connected to the first water inlet nozzle and the second water inlet nozzle through a cold water tank outlet pipe to provide condensate for the first cavity and the cooling pipe.

[0010] In an optional manner, the condensate collection device also includes a thermal insulation layer arranged on the outer layer of the cold water tank; and / or the condensate collection device also includes a thermal insulation and anti-condensation layer arranged on the outer layer of the condensate collecting pipe and the cold water tank outlet pipe.

[0011] In an optional manner, the condensed water collection device also includes an online cleaning device arranged on the water outlet pipe of the cold water tank, which is used to improve the water quality of the condensed water.

[0012] In an optional manner, the water pump motor cooling system also includes a cooling drainage collection and reuse device; the cooling drainage collection and reuse device includes a first cooling drain pipe, a second cooling drain pipe and a normal temperature water tank; the first water outlet is connected to the normal temperature water tank through the first cooling drain pipe; the water pump motor cooling device is also used to cool the water pump motor according to the condensed water in the first cavity, and then transfer the condensed water to the normal temperature water tank through the first cooling drain pipe; the second water outlet is connected to the normal temperature water tank through the second cooling drain pipe; the water pump motor cooling device is also used to cool the lubricating oil according to the condensed water in the cooling pipe, and then transfer the condensed water to the normal temperature water tank through the second cooling drain pipe.

[0013] In an optional manner, the condensed water collection device also includes a valve and an overflow pipe; a valve is arranged on the cold water tank outlet pipe near the cold water tank side for controlling the opening and closing between the cold water tank and the cold water tank outlet pipe; the overflow pipe is arranged on the top of the cold water tank for connecting to the normal temperature water tank and transferring excess condensed water stored in the cold water tank to the normal temperature water tank through the overflow pipe.

[0014] The embodiment of the present invention provides a first water-cooling housing to dissipate heat for the water pump motor, and provides a second water-cooling housing to dissipate heat for the pump shaft, thereby being able to dissipate heat for both the water pump motor and the pump shaft at the same time, thereby improving the heat dissipation effect and ensuring the working efficiency and service life of the water pump.

[0015] Furthermore, the embodiment of the present invention collects condensed water of the central air conditioner for heat dissipation of the water pump by setting a condensed water collection device, which can utilize the cooling capacity of the condensed water, save water resources and improve the cooling effect of the water pump.

[0016] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0018] Figure 1 A schematic structural diagram of a water pump motor cooling system provided by an embodiment of the present invention is shown;

[0019] Figure 2A partial cross-sectional schematic diagram of a water pump motor provided by an embodiment of the present invention is shown;

[0020] Figure 3 A cross-sectional schematic diagram of a pump shaft provided in an embodiment of the present invention is shown.

[0021] The reference numerals in the specific implementation manner are as follows:

[0022] Condensate collecting device 100, central air conditioner 110, cold water tank 120, insulation layer 121, condensate collecting pipe 130, first insulation anti-condensation layer 1301, condensate collecting horizontal pipe 131, condensate collecting vertical pipe 132, cold water tank outlet pipe 133, second insulation anti-condensation layer 1331, valve 140, overflow pipe 150, online cleaning device 160, water replenishment port 170, water pump motor cooling device 200, water pump motor 210, rotor 211, winding 212, thermal conductive silica gel 213, heat pipe 214, motor shaft 215, water pump body 220, pump casing 221, coupling 222, impeller 223, pump shaft 230, first water cooling shell 240, inner shell 241, outer shell 242, first water inlet nozzle 243, first water outlet 244, second water-cooled shell 250, cooling pipe 251, first sub-cooling pipe 2511, second sub-cooling pipe 2512, lubricating oil chamber 252, upper bearing 2521, lower bearing 2522, sealing element 2523, second water inlet nozzle 253, second water outlet 254, water distributor 255, water collector 256, temperature sensor 260, first solenoid valve 265, second solenoid valve 270, cooling water collection and recycling device 300, first cooling water pipe 310, second cooling water pipe 320, normal temperature water tank 330, ventilation pipe 340, insect-proof net 341. DETAILED DESCRIPTION

[0023] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0024] It should be noted that the existing water-cooled pump motor introduces tap water for motor cooling, and the tap water is usually at a high temperature and has a poor cooling effect. It takes a lot of precious water resources to completely cool the pump motor, which makes it difficult to promote the water cooling method. Only a few large pump motors use water cooling. The inventor of the present application noticed that an average 1kW central air-conditioning cooling load can produce 0.4-0.8kg of condensed water per hour, and the water temperature of the condensed water is generally 10℃-15℃. It can be seen that the amount of condensed water generated by the central air-conditioning system is very large, and this part of water resources also contains huge cooling capacity. The amount of air-conditioning condensed water in a developed city can reach tens of thousands of tons in a year. This data is very impressive, and my country's per capita water resources are only 1 / 4 of the world's. It is necessary to pay attention to and make full use of water resources. On this basis, the inventor of the present application considers that the buildings that need to be equipped with central air-conditioning are relatively high-end buildings with high quality requirements. In order to ensure the constant temperature and temperature in the building, the central air-conditioning needs to be operated in all seasons, and the pH value of the condensed water generated by the central air-conditioning is neutral, non-corrosive, and the water quality is relatively clean, which has a high utilization value. In conventional building designs, condensed water is usually collected and discharged into municipal drainage pipes, wasting a lot of water and not utilizing the cooling capacity of the condensed water, resulting in a waste of water resources and energy. To this end, this application introduces a condensed water collection device to collect condensed water from central air conditioners for the use scenarios of high-end buildings to meet the condensed water needs of the water pump motor cooling device, and cools the building's domestic water pump through the water pump motor cooling device, providing a better cooling effect for the domestic water pump and reducing water resource waste.

[0025] See also Figure 1 , Figure 1 A schematic structural diagram of a water pump motor cooling system provided in an embodiment of the present invention is shown, wherein the water pump motor cooling system comprises a condensate collecting device 100 and a water pump motor cooling device 200 .

[0026] The condensed water collecting device 100 is used to collect condensed water from the central air conditioner 110 and transport the condensed water to the water pump motor cooling device 200 .

[0027] Among them, the water pump motor cooling device 200 includes a water pump motor 210, a water pump body 220, a pump shaft 230, a first water-cooled shell 240 composed of an inner shell 241 and an outer shell 242, and a second water-cooled shell 250 arranged outside the pump shaft 230; a first cavity for accommodating the condensed water is formed between the inner shell 241 and the outer shell 242, and the water pump motor 210 is arranged in the inner shell 241; the water pump motor cooling device 200 is used to cool the water pump motor 210 according to the condensed water in the first cavity.

[0028] Among them, the condensate collection device 100 and the water pump motor cooling device 200 belong to the same building. Specifically, the building is respectively provided with a central air conditioner 110 for maintaining a constant indoor temperature and / or humidity of the building, and a domestic water pump for water supply; the central air conditioner 110 generates condensate when working, and the water pump motor cooling device 200 uses the condensate to cool the domestic water pump of the building to maintain a stable water supply condition.

[0029] The water pump body 220 is arranged outside the first water-cooling housing 240 , and the water pump motor 210 is connected to the water pump body 220 via the pump shaft 230 to drive the water pump body 220 to supply or pump water; the second water-cooling housing 250 is used to accommodate the condensed water to cool the pump shaft 230 .

[0030] The embodiment of the present invention provides a first water-cooling housing 240 to dissipate heat for the water pump motor 210, and provides a second water-cooling housing 250 to dissipate heat for the pump shaft 230. This can dissipate heat for both the water pump motor 210 and the pump shaft 230 at the same time, thereby improving the heat dissipation effect and ensuring the working efficiency and service life of the water pump.

[0031] Furthermore, the embodiment of the present invention provides a condensed water collection device 100 to collect condensed water of the central air conditioner 110 for heat dissipation of the water pump, thereby utilizing the cooling capacity of the condensed water, saving water resources and improving the cooling effect of the water pump.

[0032] In a specific embodiment of the present invention, refer to Figure 2 , Figure 2 A partial cross-sectional schematic diagram of a water pump motor provided in an embodiment of the present invention is shown, wherein the water pump motor 210 includes, from the inside to the outside, a rotor 211 , a winding 212 , a thermally conductive silicone 213 , and a heat pipe 214 disposed in the thermally conductive silicone 213 .

[0033] The thermally conductive silicone 213 is bonded to the inner shell 241 . The thermally conductive silicone 213 and the heat pipe 214 are used to absorb the heat of the rotor 211 and the winding 212 , and transfer the heat to the inner shell 241 .

[0034] Among them, the inner shell 241 is made of a metal shell with high heat transfer efficiency, and the outer shell 242 is made of a thermal insulation material. A first cavity is formed between the inner shell 241 and the outer shell 242. The condensed water in the first cavity takes away the heat on the inner shell 241, thereby indirectly cooling the water pump motor 210.

[0035] Among them, the water pump motor cooling device 200 also includes a first water inlet nozzle 243 and a first water outlet 244; the first water inlet nozzle 243 and the first water outlet 244 are respectively arranged in the first cavity, specifically, the first water inlet nozzle 243 is arranged close to the top of the outer shell 242, and the first water outlet 244 is arranged close to the bottom of the outer shell 242, and the first water inlet nozzle 243 and the first water outlet 244 pass through the outer shell 242 and are connected to the first cavity; the condensate collection device 200 transports condensate to the first cavity through the first water inlet nozzle 243, and discharges the condensate through the first water outlet 244.

[0036] The embodiment of the present invention forms a first cavity for accommodating condensed water by an inner shell 241 of heat-conductive material and an outer shell 242 of heat-insulating material, which can improve the cooling effect of the condensed water on the water pump motor 210 in the inner shell 241, improve energy efficiency, and reduce the waste of cold water of the condensed water.

[0037] The water pump body 220 includes a pump housing 221 and a coupling 222 and an impeller 223 disposed in the pump housing 221 .

[0038] The water pump motor 210 further includes a motor shaft 215 disposed at the bottom, the motor shaft 215 passes through the first water-cooling housing 240 and is connected to the rotating shaft 230. Specifically, the motor shaft 215 is connected to the pump shaft 230 via a coupling 222, the pump shaft 230 is fixedly connected with the impeller 223, and the water pump motor 213 drives the pump shaft 230 to rotate the impeller 223 at high speed through the coupling 222 to pressurize water supply and provide domestic water for the building. Since the temperature of the water pump motor 210 and the pump shaft 230 is kept constant, the water supply condition is also efficient and stable.

[0039] In the specific embodiment of the present invention, please refer to Figure 3 , Figure 3 A cross-sectional schematic diagram of the pump shaft provided in an embodiment of the present invention is shown, wherein the second water-cooled housing 250 includes a cooling pipe 251 and a lubricating oil chamber 252; the lubricating oil chamber 252 for accommodating lubricating oil is arranged outside the pump shaft 230, and the pump shaft 230 is cooled by the lubricating oil; the cooling pipe 251 for accommodating condensed water is arranged inside the lubricating oil chamber 252, and the lubricating oil is cooled by the condensed water.

[0040] Optionally, in order to increase the contact area between the cooling pipe 251 and the lubricating oil, the cooling pipe 252 is disposed in the lubricating oil chamber 252 in a curved manner.

[0041] Among them, an upper bearing 2521 is arranged at the connection between the top of the lubricating oil chamber 252 and the pump shaft 230, and a lower bearing 2522 is arranged at the connection between the bottom of the lubricating oil chamber 252 and the pump shaft 230. A seal 2523 is arranged at the bottom of the lower bearing 2522, and the seal 2523 is used to mechanically seal the bottom of the lower bearing 2522 to prevent the lubricating oil in the lubricating oil chamber 252 from leaking.

[0042] Among them, the water pump motor cooling device 200 also includes a second water inlet nozzle 253 and a second water outlet 254; the cooling pipe 251 is respectively provided with the second water inlet nozzle 253 and the second water outlet 254, specifically, the second water inlet nozzle 253 is arranged near the top of the lubricating oil chamber 252, and the second water outlet 254 is arranged near the bottom of the lubricating oil chamber 252, and the second water inlet nozzle 253 and the second water outlet 254 pass through the lubricating oil chamber 252 and are connected to the cooling pipe 251; the condensate collecting device 200 conveys condensate to the cooling pipe 251 through the second water inlet nozzle 253, and discharges the condensate through the second water outlet 254.

[0043] Optionally, the water pump motor cooling device 200 further includes a water separator 255 and a water collector 256; the cooling pipe 251 includes at least two sub-cooling pipes, and the water separator 255 and the water collector 256 are connected through the sub-cooling pipes; the water separator 255 is arranged at the top of the lubricating oil chamber 252, and is connected to the second water inlet nozzle 253, and is used to transmit condensed water to the water collector 256 through the sub-cooling pipe; the water collector 256 is arranged at the bottom of the lubricating oil chamber 252, and is connected to the second water outlet 254, and is used to receive the condensed water transmitted by the sub-cooling pipe, and discharge the condensed water through the second water outlet 254. In a specific embodiment of the present invention, see Figure 3 The cooling pipe 251 includes a first sub-cooling pipe 2511 and a second sub-cooling pipe 2512 .

[0044] The embodiment of the present invention takes into account the sealing requirements of the pump shaft 230 and provides a cooling pipe 251 to cool the lubricating oil in the lubricating oil chamber 252, thereby indirectly cooling the pump shaft 230. By providing at least two sub-cooling pipes in the lubricating oil chamber 252 and bending the cooling pipe 251, the heat dissipation area of ​​the cooling pipe 251 can be increased, thereby improving the cooling efficiency of the pump shaft 230, and thereby improving the working efficiency and service life of the water pump.

[0045] See also Figure 1The motor cooling device 200 also includes a temperature sensor 260, a first solenoid valve 265 and a second solenoid valve 270 electrically connected to the water pump motor 210; the temperature sensor 260 is used to detect the temperature of the water pump motor 210; the first solenoid valve 265 is arranged on the condensed water collection device 100 near the first water inlet nozzle 243; the first solenoid valve 265 is used to adjust the amount of condensed water in the first cavity according to the temperature of the water pump motor 210; the second solenoid valve 270 is arranged on the condensed water collection device 100 near the second water inlet nozzle 253; the second solenoid valve 270 is used to adjust the amount of condensed water in the cooling pipe 251 according to the temperature of the water pump motor 210.

[0046] The first solenoid valve 265 and the second solenoid valve 270 are jointly controlled by the temperature of the water pump motor 210. Specifically, those skilled in the art can set a preset starting temperature value for the first solenoid valve 265 and the second solenoid valve 270 according to the actual application scenario. When the temperature sensor 260 detects that the temperature of the water pump motor 210 is greater than or equal to the preset starting temperature value, the first solenoid valve 265 and the second solenoid valve 270 are opened to start introducing condensed water into the water pump motor cooling device 200. When the temperature of the water pump motor 210 is greater than the preset starting temperature, the opening and closing degree of the first solenoid valve 265 and the second solenoid valve 270 is positively correlated with the temperature of the water pump motor 210, that is, the higher the temperature of the water pump motor 210, the higher the opening degree of the first solenoid valve 265 and the second solenoid valve 270, and the greater the amount of condensed water inflow into the first cavity and the cooling pipe 251. In this embodiment, the preset starting temperature value can be set to 60°C.

[0047] The embodiment of the present invention controls the opening and closing degree of the first solenoid valve 265 and the second solenoid valve 270 according to the temperature of the water pump motor 210, and can control the condensate inlet of the water pump motor cooling device 200 according to the temperature of the water pump motor 210, thereby accurately controlling the temperature of the water pump motor 210 and the pump shaft 230 to be constant, thereby ensuring the high-efficiency operation of the water pump and increasing its service life.

[0048] See also Figure 1 The condensate collection device 100 includes a central air conditioner 110 and a cold water tank 120. The central air conditioner 110 generates condensate when in operation, and transmits the condensate to the cold water tank 120 through a condensate collector 130; the cold water tank 120 is connected to the first water inlet nozzle 243 and the second water inlet nozzle 253 through a cold water tank outlet pipe 133, respectively, to provide condensate to the first cavity and the cooling pipe 251.

[0049] One end of the cold water tank outlet pipe 133 is connected to the cold water tank, and the other end is divided into two pipes connected to the first water inlet nozzle 243 and the second water inlet nozzle 253 respectively.

[0050] Specifically, the horizontal heights of the central air conditioner 110, the cold water tank 120 and the water pump motor cooling device 200 are arranged in sequence from high to low, and the condensate collecting pipe 130 includes a condensate collecting transverse pipe 131 and a condensate collecting vertical pipe 132. The central air conditioner 110 is connected to the cold water tank 120 through the condensate collecting transverse pipe 131 and the condensate collecting vertical pipe 132 in sequence; the condensate collecting vertical pipe 132 is vertically arranged relative to the ground, and the condensate collecting transverse pipe 131 is arranged sloping toward the condensate collecting vertical pipe 132, and the slope of the condensate collecting transverse pipe 131 is not less than 0.003; the condensate collecting vertical pipe 132 is connected to the condensate collecting transverse pipe 131 at the upper end and to the cold water tank 120 at the lower end, and the condensate flows through the condensate collecting transverse pipe 131 and the condensate collecting vertical pipe 132 in sequence by gravity and is collected into the cold water tank 120.

[0051] Furthermore, when the first solenoid valve 265 is opened, condensed water is transported to the first cavity by gravity flow to cool the overheated water pump motor 210; when the second solenoid valve 270 is opened, condensed water is transported to the cooling pipe 251 by gravity flow to cool the lubricating oil in the lubricating oil chamber 252, thereby indirectly cooling the pump shaft 230.

[0052] The embodiment of the present invention utilizes gravity flow to collect condensed water and transmit it to the water pump motor cooling device 200, which can effectively save energy.

[0053] Optionally, the condensate collection device 100 further includes a heat preservation layer 121 disposed on the outer layer of the cold water tank 120; it is understandable that Figure 1 Only a partial structure of the insulation layer 121 is shown, and actually the insulation layer 121 covers the outer surface of the cold water tank 120; wherein, the insulation layer 121 can be a rubber-plastic insulation layer.

[0054] Optionally, the condensate collection device 100 further includes a heat preservation and anti-condensation layer disposed on the outer layer of the condensate collection pipe 130 and the cold water tank outlet pipe 133, see Figure 1 The thermal insulation and anti-condensation layer of the embodiment of the present invention includes a first thermal insulation and anti-condensation layer 1301 arranged on the condensate water collecting pipe 130 and a second thermal insulation and anti-condensation layer 1331 arranged on the cold water tank outlet pipe 133; it can be understood that, Figure 1Only partial structures of the first thermal insulation and anti-condensation layer 1301 and the second thermal insulation and anti-condensation layer 1331 are shown. In fact, the first thermal insulation and anti-condensation layer 1301 covers the outer surface of the condensate collecting pipe 130, and the second thermal insulation and anti-condensation layer 1331 covers the outer surface of the cold water tank outlet pipe 133; wherein, the thermal insulation and anti-condensation layer can be made of rubber and plastic thermal insulation and anti-condensation layer.

[0055] Taking into account that the condensed water temperature is relatively low and needs to be kept warm, the embodiment of the present invention can reduce the loss of cold during the condensed water transmission and storage processes by providing an insulation layer 121 on the surface of the cold water tank 120 and an insulation and anti-condensation layer on the condensed water transport pipeline, thereby effectively utilizing the cold energy of the condensed water and improving the cooling effect of the water pump motor cooling device 200 on the water pump motor 210 and the pump shaft 230.

[0056] Optionally, considering the water quality requirements of the water pump motor cooling device 200, the condensate collection device 100 also includes an online cleaning device 160 arranged on the cold water tank outlet pipe 133 to improve the water quality of the condensate.

[0057] Optionally, the condensate collection device 100 also includes a water replenishment port 170, one end of the water replenishment port 170 is connected to an external water source, and the other end is connected to the cold water tank outlet pipe 133. When the condensate storage capacity in the cold water tank 120 is insufficient, water can be replenished through an external water source to ensure that the water pump motor cooling device 200 can provide sufficient condensate for the water pump motor 110 and the pump shaft 130.

[0058] See also Figure 1 The water pump motor cooling system also includes a cooling drainage collection and recycling device 300; the cooling drainage collection and recycling device 300 includes a first cooling drainage pipe 310, a second cooling drainage pipe 320 and a normal temperature water tank 330.

[0059] Among them, the first water outlet 244 is connected to the normal temperature water tank 330 through the first cooling drain pipe 310; the water pump motor cooling device 200 is also used to cool the water pump motor 210 according to the condensed water in the first cavity, and then transfer the condensed water to the normal temperature water tank 330 through the first cooling drain pipe 310.

[0060] Among them, the second water outlet 254 is connected to the normal temperature water tank 330 through the second cooling drain pipe 320; the water pump motor cooling device 200 is also used to cool the lubricating oil according to the condensed water in the cooling pipe 251, and then transmit the condensed water to the normal temperature water tank 330 through the second cooling drain pipe 320.

[0061] Optionally, the condensate collection device 100 also includes a valve 140; the valve 140 is arranged on the cold water tank outlet pipe 133 near the cold water tank 120 side, which is used to control the opening and closing between the cold water tank 120 and the cold water tank outlet pipe 133, that is, to control whether the cold water tank 120 releases condensate through the cold water tank outlet pipe 133.

[0062] Among them, the condensed water collection device 100 also includes an overflow pipe 150; the overflow pipe 150 is set on the top of the cold water tank 120, which is used to connect to the normal temperature water tank 330 and transfer the excess condensed water stored in the cold water tank 120 to the normal temperature water tank 330 through the overflow pipe 150.

[0063] The embodiment of the present invention takes into account that the water pump motor cooling device 200 requires regular maintenance, or also needs to be shut down for maintenance when a fault occurs, so a valve 140 and an overflow pipe 150 are provided. When the water pump motor cooling device 200 requires maintenance, the valve 140 is closed, and the condensed water that cannot be stored in the cold water tank 120 is collected into the normal temperature water tank 330 through the overflow pipe 150.

[0064] The ends of the first cooling drain pipe 310 , the second cooling drain pipe 320 and the overflow pipe 150 are combined into one pipe to connect to the normal temperature water tank 330 .

[0065] The cooling wastewater collection and recycling device 300 further includes a ventilation pipe 340 and an insect-proof net 341 arranged on the top of the normal temperature water tank 330; specifically, one end of the ventilation pipe 340 is connected to the normal temperature water tank 330, and the insect-proof net 341 is arranged at the pipe opening of the other end.

[0066] The embodiment of the present invention realizes normal ventilation of the normal temperature water tank 330 by setting a ventilation pipe 340 in the normal temperature water tank 330, effectively reducing the condensed water in the normal temperature water tank 330 from being easily deteriorated due to the high water temperature, and prevents reptiles from entering by setting an insect-proof net 341, thereby ensuring the sanitary conditions of the normal temperature water tank 330.

[0067] Optionally, the cooling drainage collection and reuse device 300 also includes a water tap (not shown in the figure) arranged at the normal temperature water tank 330, and the water tap is used to take out the condensed water in the normal temperature water tank 330 for use in ground cleaning, greening watering, etc. In this way, the embodiment of the present invention not only utilizes the coldness of the condensed water, but also recycles the condensed water passing through the water pump motor cooling device 200, thereby achieving the effect of saving water.

[0068] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the embodiments of the present invention should have the common meanings understood by technicians in the field to which the embodiments of the present invention belong.

[0069] In the description of the present invention, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the embodiments of the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0070] In addition, the technical terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. In the description of the embodiments of the present invention, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0071] In the description of the present embodiment, unless otherwise clearly specified and limited, the technical terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to the specific circumstances.

[0072] In the description of the present embodiment, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A water pump motor cooling system, characterized in that: The water pump motor cooling system comprises a condensed water collecting device and a water pump motor cooling device; The condensed water collecting device is used to collect the condensed water of the central air conditioner and transport the condensed water to the water pump motor cooling device; The water pump motor cooling device comprises a water pump motor, a water pump body, a pump shaft, a first water-cooling housing composed of an inner shell and an outer shell, and a second water-cooling housing arranged outside the pump shaft; a first cavity for accommodating the condensed water is formed between the inner shell and the outer shell, and the water pump motor is arranged in the inner shell; the water pump motor cooling device is used to cool the water pump motor according to the condensed water in the first cavity; The water pump body is arranged outside the first water-cooling housing, and the water pump motor is connected to the water pump body through the pump shaft to drive the water pump body to supply or pump water; the second water-cooling housing is used to contain the condensed water to cool the pump shaft.

2. The water pump motor cooling system according to claim 1, characterized in that: The second water-cooling housing includes a cooling pipe and a lubricating oil chamber; The lubricating oil chamber for containing lubricating oil is arranged outside the pump shaft, and the lubricating oil is used to cool the pump shaft; The lubricating oil chamber is provided with a cooling pipe for accommodating the condensed water, and the lubricating oil is cooled by the condensed water.

3. The water pump motor cooling system according to claim 2, characterized in that: The water pump motor cooling device also includes a first water inlet nozzle, a second water inlet nozzle, a first water outlet and a second water outlet; The first cavity is respectively provided with the first water inlet nozzle and the first water outlet, and the cooling pipe is respectively provided with the second water inlet nozzle and the second water outlet; The condensed water collecting device delivers condensed water to the first cavity and the cooling pipe through the first water inlet nozzle and the second water inlet nozzle respectively, and the first cavity and the cooling pipe discharge condensed water through the first water outlet and the second water outlet respectively.

4. The water pump motor cooling system according to claim 3, characterized in that: The water pump motor cooling device further comprises a water distributor and a water collector; the cooling pipe comprises at least two sub-cooling pipes, and the water distributor and the water collector are connected via the sub-cooling pipes; The water distributor is arranged at the top of the lubricating oil chamber and is connected to the second water inlet nozzle, and is used to transfer condensed water to the water collector through the sub-cooling pipe; The water collector is arranged at the bottom of the lubricating oil chamber and is connected to the second water outlet, and is used for receiving the condensed water transmitted by the sub-cooling pipe and discharging the condensed water through the second water outlet.

5. The water pump motor cooling system according to claim 3, characterized in that: The motor cooling device also includes a temperature sensor, a first solenoid valve and a second solenoid valve electrically connected to the water pump motor; The temperature sensor is used to detect the temperature of the water pump motor; The first solenoid valve is arranged on the side of the condensed water collection device close to the first water inlet nozzle; the first solenoid valve is used to adjust the water inflow of the condensed water in the first cavity according to the temperature of the water pump motor; The second solenoid valve is arranged on the side of the condensed water collecting device close to the second water inlet nozzle; the second solenoid valve is used to adjust the water inflow of the condensed water in the cooling pipe according to the temperature of the water pump motor.

6. The water pump motor cooling system according to claim 3, characterized in that: The condensed water collection device includes a central air conditioner and a cold water tank; The central air conditioner generates condensed water when working, and transmits the condensed water to the cold water tank through the condensed water collecting pipe; The cold water tank is connected to the first water inlet nozzle and the second water inlet nozzle respectively through a cold water tank outlet pipe to provide condensed water for the first cavity and the cooling pipe.

7. The water pump motor cooling system according to claim 6, characterized in that: The condensed water collection device also includes a heat-insulating layer arranged on the outer layer of the cold water tank; and / or, The condensed water collection device also includes a heat-insulating anti-condensation layer arranged on the outer layer of the condensed water collecting pipe and the cold water tank outlet pipe.

8. The water pump motor cooling system according to claim 6, characterized in that: The condensed water collecting device also includes an online cleaning device arranged on the water outlet pipe of the cold water tank, which is used to improve the water quality of the condensed water.

9. The water pump motor cooling system according to claim 6, characterized in that: The water pump motor cooling system also includes a cooling drainage collection and recycling device; the cooling drainage collection and recycling device includes a first cooling drainage pipe, a second cooling drainage pipe and a normal temperature water tank; The first water outlet is connected to the normal temperature water tank through the first cooling drain pipe; the water pump motor cooling device is also used for cooling the water pump motor according to the condensed water in the first cavity, and then transmitting the condensed water to the normal temperature water tank through the first cooling drain pipe; The second water outlet is connected to the normal temperature water tank through the second cooling drain pipe; the water pump motor cooling device is also used to cool the lubricating oil according to the condensed water in the cooling pipe, and then transmit the condensed water to the normal temperature water tank through the second cooling drain pipe.

10. The water pump motor cooling system according to claim 9, characterized in that: The condensed water collection device also includes a valve and an overflow pipe; The cold water tank outlet pipe is provided with a valve near the cold water tank side for controlling the opening and closing between the cold water tank and the cold water tank outlet pipe; The overflow pipe is arranged on the top of the cold water tank for connecting to the normal temperature water tank and transferring the excess condensed water stored in the cold water tank to the normal temperature water tank through the overflow pipe.

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