CN216407175U

CN216407175U - High-power liquid cooling centrifugal pump structure with self-cooling function

Info

Publication number: CN216407175U
Application number: CN202122725762.6U
Authority: CN
Inventors: 杨振超; 王红超; 王航; 高可正; 张闯; 张庆红; 耿嘉冉; 梁雯娜; 王海晓; 杨吉武
Original assignee: Xinxiang Aviation Industry Group Co Ltd
Current assignee: Xinxiang Aviation Industry Group Co Ltd
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2022-04-29
Anticipated expiration: 2031-11-05

Abstract

The utility model belongs to the field of liquid-cooled centrifugal pump design, and relates to a high-power liquid-cooled centrifugal pump structure with a self-cooling function. The method comprises the following steps: the pump body, including a motor, an end cap, a controller, and a cover plate, the pump body, a motor, connecting line and controller, connecting line includes high temperature low pressure pipeline and medium temperature medium pressure pipeline, the pump body is fixed with the motor, the low-pressure area of the pump body is connected through high temperature low pressure pipeline with the cold drawing export of controller, the pump body passes through water conservancy diversion hole intercommunication with the motor, the motor is connected through medium temperature medium pressure pipeline with the cold drawing import of controller, the motor is equipped with can steep structure, be equipped with inlet and liquid outlet on the pump body, respectively with on-machine pipe connection, the coolant liquid inhales from the inlet, partly follow the coolant liquid of certain flow pressure of liquid outlet output, another part flows through the cold drawing that passes through medium temperature medium pressure pipeline entering controller behind the inside can steep structure of motor and forms a complete self-cooling return circuit to the low-pressure area of the pump body through high temperature low pressure pipeline after cooling to each heat radiation module of controller. The heat dissipation efficiency is improved.

Description

High-power liquid cooling centrifugal pump structure with self-cooling function

Technical Field

The utility model belongs to the technical field of liquid-cooled centrifugal pump design, and relates to a high-power liquid-cooled centrifugal pump structure with a self-cooling function.

Background

For a traditional liquid cooling centrifugal pump, a motor shaft is designed to be a hollow shaft structure, internal circulation is completed in a pump body and a motor through cooling liquid, heat generated in the working process of the motor is taken away, and therefore cooling and heat dissipation of the motor are achieved. The traditional cooling heat dissipation mode, especially the cooling heat dissipation of the controller, has low reliability, increases the power consumption loss of the equipment, and is not suitable for the cooling heat dissipation of high-power equipment.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is: the high-power liquid-cooling centrifugal pump structure with the self-cooling function is provided to improve the heat dissipation efficiency.

In order to solve the technical problem, the technical scheme of the utility model is as follows:

a high-power liquid cooling centrifugal pump structure with self-cooling function includes: the pump body 1, the motor 2, the connecting pipeline 3 and the controller 4, wherein, the connecting pipeline 3 includes a high temperature low pressure pipeline 31 and a medium temperature medium pressure pipeline 32, the pump body 1 is fixed with the motor 2, the low pressure area of the pump body 1 is connected with the outlet of the cold plate 12 of the controller 4 through the high temperature low pressure pipeline 31, the pump body 1 is communicated with the motor 2 through a diversion hole, the motor 2 is connected with the inlet of the cold plate 12 of the controller 4 through the medium temperature medium pressure pipeline 32, the motor 2 is provided with an infusion structure, the pump body 1 is provided with a liquid inlet 5 and a liquid outlet 7 which are respectively connected with the on-machine pipeline, the cooling liquid is sucked from the liquid inlet 5, and one part of the cooling liquid with certain flow pressure is output from the liquid outlet 7, the other part of the cooling liquid flows through the liquid-permeable structure inside the motor 2 and then enters the cold plate of the controller 4 through the medium-temperature and medium-pressure pipeline 32 to cool each heat dissipation module of the controller, and then flows back to the low-pressure area 17 of the pump body 1 through the high-temperature and low-pressure pipeline 31 to form a complete self-cooling loop.

Further, the structure of the liquid immersible inside the motor 2 is through the gap between the motor stator 10 and the rotor 9.

Furthermore, a flow channel is arranged on the cold plate 12, and the filter capacitor 11, the power module 13 and the power module 16 of the controller are closely attached to the cold plate.

Further, according to the power of the controller, the filter capacitor 11, the power module 13 and the power module 16 of the controller are arranged close to the inlet of the cold plate 12 with high power, and the filter capacitor 12, the power module 13 and the power module 16 with low power are arranged close to the outlet of the cold plate 12 with low power.

Further, the pump body 1 comprises a floating impeller structure, and the cooling liquid is output through a rear part of the floating impeller structure, and the other part of the cooling liquid enters a high-pressure area between the pump body 1 and the motor 2.

Further, the pump body 1 is connected to the motor 2 via a flange fixed by screws.

The utility model has the technical effects that:

the utility model relates to a high-power liquid-cooled centrifugal pump structure with a self-cooling function, which realizes the integrated installation of a pump body, a motor and a controller by adopting an external pipeline connection mode, and the flow channel design of a cold plate of the controller carries out regional division aiming at the difference of the heating power of each module so as to ensure the realization of the cooling and heat dissipation functions of equipment. The utility model not only effectively makes up the defects of serious heat loss and difficult heat dissipation and cooling of the high-power liquid-cooled centrifugal pump equipment, but also meets the structural thermal design requirement of the high-power liquid pump, and effectively improves the reliability and the safety of the product.

Drawings

FIG. 1 is an isometric view of the overall construction of a liquid-cooled centrifugal pump.

Figure 2 is an isometric view of the pump body structure.

Fig. 3 is an isometric view of a motor structure.

FIG. 4 is a schematic diagram of the controller primary heat loss module installation relative to the cold plate configuration layout.

FIG. 5 is a schematic view of a flow path of a liquid-cooled centrifugal pump cooling circuit.

Wherein the arrow direction is the liquid flow direction.

FIG. 6 is a block diagram of the operating principle of the liquid-cooled centrifugal pump cooling circuit.

FIG. 7 is a schematic diagram of the external piping connections of the liquid-cooled centrifugal pump cooling circuit.

Wherein 1-pump body, 2-motor, 3-connecting pipeline, 4-controller, 5-liquid inlet, 6-first liquid connector, 7-liquid outlet, 8-second liquid connector, 9-rotor, 10-stator, 11-filter capacitor, 12-cold plate, 13-power module, 14-third liquid connector, 15-fourth liquid connector, 16-power module, 17-high pressure area, 18-low pressure area.

Detailed Description

The following detailed description is made with reference to the accompanying drawings.

The utility model particularly relates to a high-reliability self-cooling high-power liquid-cooling centrifugal pump structure used in a No. 65 cooling liquid environment. Because the electric power consumption of the equipment is large (15KW), the heat loss of the motor and the controller is serious, and the traditional internal circulating cooling structure of the hollow shaft cannot meet the cooling and heat dissipation requirements on the pump body, the motor and the controller at the same time.

FIG. 1 is an isometric view of the overall construction of a liquid-cooled centrifugal pump. As shown in the figure. The liquid cooling centrifugal pump is composed of a pump body 1, a motor 2, a connecting pipeline 3 and a controller 4. The pump body 1 is connected with the motor 2 through a flange fixed by screws, and the pump body 1, the motor 2 and the controller 4 are connected through a connecting pipeline 3.

Figure 2 is an isometric view of a pump body structure. As shown in the figure, the pump body 1 is provided with a liquid inlet 5, a first liquid connector 6 and a liquid outlet 7, the liquid inlet 5 is fixedly connected with the first liquid connector 6 through 4M 4 screws, the liquid inlet 5 is connected with the liquid outlet 7 through 4M 5 screws, the liquid inlet 5 is connected with the liquid outlet 7 through an onboard pipeline, and when the equipment works, the cooling liquid is sucked from the liquid inlet 5 and the cooling liquid with a certain flow pressure is output from the liquid outlet 7.

Fig. 3 is an isometric view of a motor structure. As shown in the figure, the motor 2 is provided with a second liquid connector 8, a rotor 9 and a stator 10, the second liquid connector is installed at the rear end of the motor 2 through 4M 4 screws, the stator 10 is installed inside the motor 2 in an embedding mode, the rotor 9 is installed inside the stator through a front bearing and a rear bearing, the motor 2 is provided with an immersible structure, cooling liquid flowing into the inside of the motor flows through the whole motor through a gap between the motor stator 10 and the rotor 9, and heat generated when the motor works is taken away. .

FIG. 4 is a schematic diagram of the controller primary heat loss module installation relative to the cold plate configuration layout. As shown in the figure, the cold plate 12 of the controller 4 is provided with a flow channel, the main heat loss module filter capacitor 11, the power module 13 and the power module 16 of the controller are all tightly attached to one side of the cold plate through screws, the structural layout of the cold plate 12 is divided regionally according to the difference of the heating power of each module, the power is large and is close to the inlet of the cold plate 12, and the power is small and is close to the outlet of the cold plate 12, so that the heat dissipation efficiency is improved. .

Fig. 5 is a schematic view of a flow passage of a cooling circuit of the liquid-cooled centrifugal pump, fig. 6 is a schematic view of a working principle of the cooling circuit of the liquid-cooled centrifugal pump, and fig. 7 is a schematic view of an external pipeline connection of the cooling circuit of the liquid-cooled centrifugal pump. As shown, a high pressure region 17 is between the pump body 1 and the motor 2 and a low pressure region is inside the intake port 5. When the equipment works, cooling liquid is sucked in through the liquid inlet 5 of the pump body 1, one part of the cooling liquid outputs cooling liquid with certain flow pressure from the liquid outlet 7, the other part of the cooling liquid flows into the liquid-immersible motor through the high-pressure area 17 between the pump body 1 and the motor 2, flows through the whole motor through the gap between the stator 10 and the rotor 9 to play a role of cooling the motor, and then flows into the medium-temperature and medium-pressure pipeline 32 through the second liquid connector 8 at the rear end of the motor 2, flows in through the third fluid connector 14 at the inlet end of the cold plate 12 of the controller 4, flows into the high temperature and low pressure pipeline 31 through the fourth fluid connector 15 at the outlet end of the cold plate 12, so as to play a role of cooling the controller, and then the liquid flows back to the low-pressure area 18 of the liquid inlet 5 through the first liquid connector 6 to form a complete self-cooling loop, and simultaneously, the cooling and heat dissipation functions of the pump body 1, the motor 2 and the controller 4 are realized.

Through reasonable design cold drawing overall arrangement, improve equipment radiating efficiency, optimize the distribution of thermal field, realize the cooling heat dissipation function to the pump body, motor and controller simultaneously, satisfy the thermal management design demand of equipment to realize the requirement of the high reliability of liquid cooling centrifugal pump, long-life, security.

Claims

1. The utility model provides a high-power liquid cooling centrifugal pump structure with from cooling function which characterized in that includes: the pump body (1), motor (2), connecting line (3) and controller (4), wherein, connecting line (3) are including high temperature low-pressure pipeline (31) and medium temperature medium pressure pipeline (32), the pump body (1) is fixed with motor (2), the low-pressure region of the pump body (1) is connected through high temperature low-pressure pipeline (31) with cold plate (12) export of controller (4), the pump body (1) communicates through the water conservancy diversion hole with motor (2), motor (2) are connected through medium temperature medium pressure pipeline (32) with cold plate (12) import of controller (4), motor (2) are equipped with can steep structure, be equipped with inlet (5) and liquid outlet (7) on the pump body (1), respectively with on-machine pipeline connection, the coolant liquid inhales from inlet (5), some is from the coolant liquid outlet (7) certain flow pressure of output, another part gets into controller (4) through medium temperature medium pressure pipeline (32) after flowing through the inside can steep structure of motor (2) through The cold plate cools each heat dissipation module of the controller and then returns to the low-pressure area (18) of the pump body (1) through the high-temperature low-pressure pipeline (31) to form a complete self-cooling loop.

2. The high-power liquid-cooled centrifugal pump structure with self-cooling function according to claim 1, wherein the liquid-immersible structure inside the motor (2) is through the gap between the motor stator (10) and the rotor (9).

3. The high-power liquid-cooled centrifugal pump structure with the self-cooling function according to claim 1, wherein the cold plate (12) is provided with a flow channel, and the filter capacitor (11), the power module (13) and the power module (16) of the controller are mounted close to the cold plate.

4. The high-power liquid-cooled centrifugal pump structure with self-cooling function according to claim 3, wherein the filter capacitor (11), the power module (13) and the power module (16) of the controller are arranged close to the inlet of the cold plate (12) with high power and close to the outlet of the cold plate (12) with low power according to the power of the controller.

5. The high-power liquid-cooled centrifugal pump structure with self-cooling function according to claim 3, wherein the pump body (1) comprises a floating impeller structure, and the cooling liquid is output through the latter part of the floating impeller structure, and the other part of the cooling liquid enters the high-pressure area (17) between the pump body (1) and the motor (2).

6. The high-power liquid-cooled centrifugal pump structure with self-cooling function according to claim 3, wherein the pump body (1) is connected with the motor (2) through a flange fixed by screws.