CN210744896U

CN210744896U - Insertion pipe type water-cooled motor base

Info

Publication number: CN210744896U
Application number: CN201921924004.3U
Authority: CN
Inventors: 李东升; 王璐; 于涛; 李婉; 丁妍; 陈磊
Original assignee: 704th Research Institute of CSIC
Current assignee: 704th Research Institute of CSIC
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2020-06-12
Anticipated expiration: 2029-11-06

Abstract

The utility model relates to an insertion tube type water-cooled motor base, which comprises an end flange and a base cavity, wherein a copper tube is inserted into the base cavity along an axis and is circumferentially arranged along the base cavity; the machine base cavity is fixedly and hermetically connected with the insertion end of the copper pipe through an end flange and an O-shaped ring, and the extension end of the copper pipe is welded with a joint to form an integral closed seawater pipeline; the base cavity into which the copper pipe is inserted is filled with transformer oil, so that heat generated by the motor is transferred outwards along the path of the inner wall of the base cavity, the transformer oil, the inserted copper pipe and cooling seawater, and indirect heat dissipation of the motor is realized. The utility model discloses a motor frame can avoid the sea water to the pressure corrosion and the electrochemical corrosion of frame cavity, can not cause the motor trouble of leaking, and the copper pipe is dismantled and is changed conveniently, compares reliability and maintainability improvement than conventional water cooled machine.

Description

Insertion pipe type water-cooled motor base

Technical Field

The patent of the utility model relates to a novel intubate formula water cooled machine frame specifically is a structural style of water cooled machine frame, belongs to the special water cooled machine category for the equipment of leading to the sea.

Background

The water-cooled motor has the characteristics of low vibration noise, small volume, high cooling efficiency and the like, and is widely applied to seawater pumps of ocean engineering or military submarines. However, in a deep sea environment, the seawater pressure is high (3.0-5.0 Mpa), the corrosiveness is strong, and the damage to the traditional water cooling machine base is large. After the motor runs for a long time, the base often has water leakage faults, and the motor is short-circuited, the coil is burnt out and the function of equipment fails when the motor is serious.

Disclosure of Invention

In order to avoid the problems of seawater pressure and electrochemical double corrosion and improve the reliability of the water-cooled motor, the novel insertion tube type water-cooled motor base is provided.

The technical scheme of the utility model is that: an insertion pipe type water-cooled motor base comprises an end flange and a base cavity, wherein a copper pipe is inserted into the base cavity along a shaft and is circumferentially arranged along the base cavity; the machine base cavity is fixedly and hermetically connected with the insertion end of the copper pipe through an end flange and an O-shaped ring, and the extension end of the copper pipe is welded with a joint to form an integral closed seawater pipeline; the base cavity into which the copper pipe is inserted is filled with transformer oil, so that heat generated by the motor is transferred outwards along the path of the inner wall of the base cavity, the transformer oil, the inserted copper pipe and cooling seawater, and indirect heat dissipation of the motor is realized.

Furthermore, the machine base cavity is formed by welding an outer cylinder, a longitudinal supporting rib and an inner cylinder, and the longitudinal supporting rib is arranged between the inner cylinder and the outer cylinder and used as a support for improving the integral rigidity of the machine base.

Furthermore, one end of the machine seat cavity is provided with an opening for inserting a copper pipe; and an O-shaped ring groove is processed on the end face of the opening side of the machine seat cavity and used for sealing the cavity and the end flange.

Furthermore, the copper pipe is formed by bending a section of whole pipe, the copper pipe is firstly bent into a fence shape and then integrally bent into an arc shape, the radius of the arc is smaller than the inner diameter of the cavity of the machine base, and the length of the arc is smaller than the effective length of the cavity of the machine base, so that the copper pipe can be ensured to be inserted into the cavity of the machine base.

Furthermore, the copper pipe extends out of the end part flange and is welded with the joint, and the joint is sealed by an O-shaped ring.

Furthermore, the copper pipe is a white copper pipe or a titanium pipe and is used for improving the seawater electrochemical corrosion resistance.

The utility model has the advantages that:

1) the novel insertion pipe type water-cooled motor base can avoid pressure corrosion and electrochemical corrosion of seawater on the base cavity, can not cause water leakage faults of the motor, is convenient to disassemble and replace a copper pipe, and has improved reliability and maintainability compared with a conventional water-cooled motor;

2) the cavity of the machine base is not in direct contact with seawater, expensive seawater corrosion resistant metal materials (stainless steel, copper alloy and titanium alloy) are not used, and the manufacturing cost of the motor is more economic.

Drawings

FIG. 1 is a structural diagram of a socket type water-cooled motor base of the present invention;

FIG. 2 is a front sectional view of the housing cavity structure of FIG. 1;

FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;

FIG. 4 is a schematic view of a full bend of the copper tube of FIG. 1;

FIG. 5 is a schematic view of the copper pipe of FIG. 4 being bent into an arc shape as a whole;

FIG. 6 shows a sealing structure at a copper pipe joint;

fig. 7 is a heat transfer path diagram.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in figure 1, the novel plug-in pipe type water-cooled motor base is formed by assembling an end flange 1, transformer oil 2, a base cavity 3, a copper pipe 4, an O-shaped ring 5 and the like.

Copper pipes 4 are inserted into the machine base cavity 3 along the shaft, the copper pipes 4 are bent in an arc shape, and the bent arc-shaped copper pipes 4 are arranged along the circumferential direction of the machine base cavity 3. The machine seat cavity 3 is fixedly and hermetically connected with the end part flange 1 and the O-shaped ring 5 at the insertion end of the copper pipe 4. The extending end of the copper pipe 4 is welded with the joint to form an integral closed seawater pipeline. The transformer oil 2 is filled in the base cavity 3 with the copper pipe 4 inserted, so that the seawater is sealed in the inserted copper pipe 4 and cannot be in direct contact with the base cavity 3, and the heat generated by the motor can be transferred outwards along the path from the inner wall of the base cavity 3, the transformer oil 2, the inserted copper pipe 4 and the cooling seawater, so that the indirect heat dissipation of the motor is realized, as shown in fig. 7.

The flange 1 at one end of the machine seat cavity 3 can be detached, and the copper pipe 4 can be detached for maintenance by detaching the flange 1. According to the seawater pressure, a copper pipe with a proper wall thickness is selected and bent to be formed, the copper pipe is inserted into the machine base cavity 3, and the copper pipe 4 is welded with the joint to form an integral closed seawater pipeline. The base cavity 3 is filled with transformer oil, and the copper tube 4 is soaked in the transformer oil 2 to improve the heat dissipation efficiency. The cooling seawater flows in the copper pipe 4. The copper pipe is made of a cupronickel pipe Bfe10 or Bfe30, and a titanium pipe TA is selected as necessary, so that the seawater electrochemical corrosion resistance can be improved. The transformer oil 2 in the machine base cavity 3 is sealed under normal pressure, has low pressure and small difficulty and is sealed by an O-shaped ring. During maintenance, the copper pipe can be removed for maintenance or replacement by removing the flange at the opening end of the machine base.

As shown in fig. 2 and 3, the housing cavity 3 is formed by welding an outer cylinder 6, a longitudinal brace 7, an inner cylinder 8, and the like. One end of the machine seat cavity 3 is opened and is used for inserting the copper pipe 4. And a longitudinal supporting rib 7 is arranged between the inner cylinder 8 and the outer cylinder 6 for supporting, so that the integral rigidity of the engine base is improved. An O-shaped ring groove 9 is processed on the end face of the opening side of the machine seat cavity 3 and is used for sealing the cavity and the end flange.

As shown in fig. 4 and 5, the copper tube 4 is formed by bending a section of whole tube, the copper tube 4 is firstly bent into a fence shape and then integrally bent into an arc shape, the diameter D of the arc is smaller than the inner diameter of the cavity 3 of the machine base, and the length L is smaller than the effective length of the cavity 3 of the machine base, so that the copper tube 4 can be ensured to be inserted into the cavity 3.

As shown in fig. 6, the flange of the extending end of the copper pipe 4 is welded with the joint to ensure that the weld 10 is firm and the joint position is sealed by the O-ring 11.

Claims

1. The utility model provides an intubation type water-cooled machine frame, includes tip flange, frame cavity, its characterized in that: the copper pipe is inserted into the cavity of the machine base along the shaft and is arranged along the circumferential direction of the cavity of the machine base; the machine base cavity is fixedly and hermetically connected with the insertion end of the copper pipe through an end flange and an O-shaped ring, and the extension end of the copper pipe is welded with a joint to form an integral closed seawater pipeline; the base cavity into which the copper pipe is inserted is filled with transformer oil, so that heat generated by the motor is transferred outwards along the path of the inner wall of the base cavity, the transformer oil, the inserted copper pipe and cooling seawater, and indirect heat dissipation of the motor is realized.

2. The socket pipe type water-cooled motor base according to claim 1, characterized in that: the engine base cavity is formed by welding an outer cylinder, a longitudinal supporting rib and an inner cylinder, and the longitudinal supporting rib is arranged between the inner cylinder and the outer cylinder and used as a support for improving the overall rigidity of the engine base.

3. The socket pipe type water-cooled motor base according to claim 1, characterized in that: one end of the machine seat cavity is provided with an opening for inserting a copper pipe; and an O-shaped ring groove is processed on the end face of the opening side of the machine seat cavity and used for sealing the cavity and the end flange.

4. The socket pipe type water-cooled motor base according to claim 1, characterized in that: the copper pipe is formed by bending a section of whole pipe, the copper pipe is firstly bent into a fence shape and then integrally bent into an arc shape, the radius of the arc is smaller than the inner diameter of the cavity of the machine base, and the length of the arc is smaller than the effective length of the cavity of the machine base, so that the copper pipe can be ensured to be inserted into the cavity of the machine base.

5. The socket pipe type water-cooled motor base according to claim 1, characterized in that: and the flange of the extending end part of the copper pipe is welded with the joint, and the joint is sealed by an O-shaped ring.

6. The socket pipe type water-cooled motor base according to claim 1, characterized in that: the copper pipe is a white copper pipe or a titanium pipe and is used for improving the seawater electrochemical corrosion resistance.