阅读说明：本技术 一种电子吊舱环控系统自增压储液箱 (Electronic pod environmental control system is from pressure boost liquid reserve tank ) 是由 付旭东 王超 冯有军 包胜 刘俊峰 陈冰 于 2020-06-17 设计创作，主要内容包括：本发明属于电子吊舱环控系统或飞机液冷系统领域,尤其涉及一种电子吊舱环控系统自增压储液箱,包括壳体、弹性元件组合件、泵,壳体一侧设置有系统回液口和泵连接口,弹性元件组合件设置在壳体内,弹性元件组合件一端固定连接在壳体内部远离系统回液口及泵连接口的侧壁上,另一端悬空在壳体内,且靠近系统回液口及泵连接口,泵连接在壳体的泵连接口上,本发明可以使弹性元件不受飞行高度影响,使增压压力稳定,从而保证泵入口压力稳定,不会使泵叶轮产生气蚀,提高系统可靠性。(The invention belongs to the field of an electronic pod environment control system or an airplane liquid cooling system, and particularly relates to a self-pressurization liquid storage tank of the electronic pod environment control system, which comprises a shell, an elastic element assembly and a pump, wherein a system liquid return port and a pump connecting port are arranged on one side of the shell, the elastic element assembly is arranged in the shell, one end of the elastic element assembly is fixedly connected to the side wall, far away from the system liquid return port and the pump connecting port, in the shell, the other end of the elastic element assembly is suspended in the shell and close to the system liquid return port and the pump connecting port, and the pump is connected to the pump connecting port of the shell.)

1. The utility model provides an electronic nacelle environmental control system is from pressure boost liquid reserve tank which characterized in that: including casing (1), elastic element sub-assembly (2), pump (3), casing (1) one side be provided with system liquid return mouth (8) and pump connector (9), elastic element sub-assembly (2) set up in casing (1), elastic element sub-assembly (2) one end fixed connection inside casing (1) keep away from the system on the lateral wall of system liquid return mouth (8) and pump connector (9), the other end is unsettled in casing (1), and is close to system liquid return mouth (8) and pump connector (9), pump (3) connect on pump connector (9) of casing (1).

2. The electronic pod environmental control system self-pressurization liquid storage tank as claimed in claim 1, wherein: and a sealing ring is arranged at the fixed connection position of the elastic element assembly (2) and the inner wall of the shell (1).

3. An electronic pod environmental control system self-pressurization reservoir according to claim 1 or 2, characterized in that: elastic element sub-assembly (2) including front end flange (4), scalable body (5), rear end flange (6) and spring (7), front end flange (4) and rear end flange (6) set up at scalable body (5) both ends, form a sealed chamber, spring (7) set up in sealed chamber, and front end flange (4) and rear end flange (6) are connected respectively at spring (7) both ends.

4. The electronic pod environmental control system self-pressurization liquid storage tank as claimed in claim 3, wherein: the telescopic pipe body (5) is a metal corrugated pipe.

5. The electronic pod environmental control system self-pressurization liquid storage tank as claimed in claim 3, wherein: the telescopic pipe body (5) is a rubber corrugated pipe.

6. The electronic pod environmental control system self-pressurization liquid storage tank as claimed in claim 3, wherein: the air pressure in the sealing cavity is less than the external atmospheric pressure.

7. The electronic pod environmental control system self-pressurization liquid storage tank as claimed in claim 3, wherein: the front end flange (4) is installed at one end of the telescopic pipe body (5) close to a pump connecting port (9) of the shell (1) and a system liquid return port (8) in a welding mode.

8. The electronic pod environmental control system self-pressurization liquid storage tank as claimed in claim 3, wherein: the rear end flange (6) is installed at one end, far away from a pump connecting port (9) of the shell (1) and one end of a system liquid return port (8), of the telescopic pipe body (5) in a welding mode.

9. The electronic pod environmental control system self-pressurization liquid storage tank as claimed in claim 1, wherein: the pump (3) is also connected with an external pod environmental control system.

Technical Field

The invention belongs to the field of electronic pod environment control systems or airplane liquid cooling systems, and particularly relates to a self-pressurization liquid storage tank of an electronic pod environment control system.

Background

In an electronic nacelle environmental control system or an airplane liquid cooling system, when the flying height changes, the atmospheric pressure changes along with the change of the flying height, the elastic element of a self-pressurization liquid storage tank of the system senses the change of the atmospheric pressure to generate displacement, the pressurization pressure of the self-pressurization liquid storage tank also changes, further the pressure at the inlet of a pump fluctuates, and when the pressure is smaller than a certain value, the inlet of the pump generates negative pressure, so that the cavitation damage of a pump impeller is caused.

An electronic pod environmental control system self-pressurization liquid storage tank free of flight height influence is needed, cavitation caused by reduction of pressure at a pump inlet due to the fact that an elastic element is influenced by atmospheric pressure is avoided, and system reliability is improved.

Disclosure of Invention

The purpose of the invention is as follows: the invention provides the self-pressurization liquid storage tank of the electronic pod environmental control system which is not influenced by the flying height, which can prevent an elastic element from being influenced by the flying height and stabilize the pressurization pressure, thereby ensuring the pressure at the inlet of a pump to be stable, preventing a pump impeller from generating cavitation and improving the reliability of the system.

The technical scheme of the invention is as follows:

the utility model provides an electronic nacelle environmental control system is from pressure boost liquid reserve tank, includes casing, elastic element sub-assembly, pump, casing one side be provided with system liquid return mouth and pump connector, the elastic element sub-assembly set up in the casing, elastic element sub-assembly one end fixed connection inside the casing keep away from the system on the lateral wall of system liquid return mouth and pump connector, the other end is unsettled in the casing, and is close to system liquid return mouth and pump connector, the pump connect on the pump connector of casing.

And a sealing ring is arranged at the fixed connection position of the elastic element assembly and the inner wall of the shell.

The elastic element assembly comprises a front end flange, a telescopic pipe body, a rear end flange and springs, wherein the front end flange and the rear end flange are arranged at two ends of the telescopic pipe body to form a sealing cavity, the springs are arranged in the sealing cavity, and two ends of each spring are respectively connected with the front end flange and the rear end flange.

The telescopic pipe body is a metal corrugated pipe.

The telescopic pipe body is a rubber corrugated pipe.

The air pressure in the sealing cavity is less than the external atmospheric pressure.

The front end flange is installed at one end of the telescopic pipe body, which is close to the pump connecting port of the shell and the system liquid return port, in a welding mode.

The rear end flange is installed at one end of the telescopic pipe body, which is far away from the pump connecting port of the shell and the system liquid return port, in a welding mode.

The pump is also connected with an external pod environmental control system.

The invention has the advantages that: the provided electronic pod environmental control system self-pressurization liquid storage tank enables the elastic element not to be influenced by flight height and enables pressurization pressure to be stable, so that the pressure at the inlet of the pump is stable, cavitation erosion of the impeller of the pump is avoided, and the reliability of the system is improved.

Description of the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the construction of the spring element assembly of the present invention;

in the figure: 1. the device comprises a shell, 2, an elastic element assembly, 3, a pump, 4, a front end flange, 5, a telescopic pipe body, 6, a rear end flange, 7, a spring, 8, a system liquid return port and 9 and a pump connecting port.

The specific implementation mode is as follows:

the following detailed description of the embodiments of the present invention, such as the shapes, configurations, mutual positions and connection relationships of the components, the functions and operating principles of the components, the manufacturing processes and the operation and use methods thereof, will be further described in detail with reference to the accompanying drawings, so as to help those skilled in the art to more completely, accurately and deeply understand the concept and technical solutions of the present invention:

the present invention is described in further detail below. Referring to fig. 1, the self-pressurization liquid storage tank of the electronic pod environmental control system comprises a shell 1, an elastic element assembly 2 and a pump 3; the elastic element assembly 2 is arranged in the shell 1, one end of the elastic element assembly is fixed with the shell 1 and sealed through a sealing ring, and the other end of the elastic element assembly is suspended and can freely move horizontally in the shell 1; the shell 1 is provided with two connecting ports, one is a system liquid return port 8, the other is a pump connecting port 9, the inlet of the pump 3 is arranged on the pump connecting port 9 of the shell 1, and the outlet is connected with the electronic pod environmental control system; the pump 3 of the present invention is a liquid-cooled pump.

The working principle of the invention is as follows: liquid in the electronic pod environmental control system enters the shell 1 through a system liquid return port 8 on the shell 1, the elastic element assembly 2 is compressed, certain elastic force is kept on the elastic element assembly 2 and acts on the liquid in the shell 1, and the situation that the cavitation erosion of the pump is caused due to the fact that the vacuum is generated at the inlet of the pump 3 is guaranteed. When the flying height of the airplane changes, although the fixed end of the elastic element assembly 2 and the shell 1 can sense the atmospheric pressure change, the fixed end does not generate displacement, the pressurizing pressure of the elastic element assembly 2 is not changed, and the inlet pressure of the pump 3 is not changed, which is specifically analyzed as follows:

when in normal work, the elastic element assembly 2 is in a certain compression state; the front end and the rear end of the elastic element assembly 2 are sealed, and one end of the elastic element assembly is free to move when being subjected to liquid pressure; one end of the pressure sensor is fixed on the shell, so that the pressure sensor is prevented from being influenced by atmospheric pressure change to generate displacement, and the change of the supercharging pressure is avoided;

when the temperature of liquid in the electronic pod environmental control system rises, the volume of the liquid expands, the pressure of the system rises (the pressure of the inlet of the liquid cooling pump rises), the elastic element assembly 2 is continuously compressed, the volume of the system increases, the pressure of the system drops (the pressure of the inlet of the liquid cooling pump drops), and the pressure of the inlet of the liquid cooling pump is maintained to be stable.

When the temperature of liquid in the electronic pod environmental control system is reduced, the volume of the liquid is contracted, the pressure of the system is reduced (the pressure of the inlet of the liquid cooling pump is reduced), the elastic element assembly 2 is continuously extended, the volume of the system is reduced, the pressure of the system is increased (the pressure of the inlet of the liquid cooling pump is increased), and the pressure stability of the inlet of the liquid cooling pump is maintained.

Elastic element sub-assembly 2 include front end flange 4, scalable body 5, rear end flange 6 and spring 7, front end flange 4 and rear end flange 6 set up at scalable body 5 both ends, form a sealed chamber, spring 7 set up in sealed chamber, and front end flange 4 and rear end flange 6 are connected respectively to spring 7 both ends.

The telescopic tube body 5 has two forms, one is a metal corrugated tube, and the other is a rubber corrugated tube.

When the telescopic pipe body 5 is a metal corrugated pipe, the elastic element assembly 2 comprises a front end flange 4, the metal corrugated pipe 5, a rear end flange 6 and a spring 7, the front end flange 4 and the metal corrugated pipe are connected and sealed through welding, the rear end flange 6 and the metal corrugated pipe are connected and sealed through welding, and the elastic element assembly 2 is sealed with the shell 1 through a sealing ring. The formed sealed cavity has a certain vacuum degree, the internal air pressure is smaller than the external atmospheric pressure, the force generated by the vacuum degree acting on the front end flange 4 and the elastic force of the spring 7 are balanced with the system liquid pressure, and the inlet pressurization effect of the liquid cooling pump is achieved. The moving distance of the elastic element assembly 2 has a certain relation with the vacuum degree inside the elastic element assembly 2.

When the telescopic pipe body 5 is a rubber corrugated pipe, the elastic element assembly 2 comprises a front end flange 4, the rubber corrugated pipe 5, a rear end flange 6 and a spring 7, the front end flange 4 is connected and sealed through pressing the rubber corrugated pipe 5, the rear end flange 6 is connected and sealed through pressing the rubber corrugated pipe 5, the elastic element assembly 2 is sealed with the shell 1 through a sealing ring, a certain vacuum degree exists in a formed sealing cavity, the internal air pressure of the sealing cavity is smaller than the external atmospheric pressure, the vacuum degree acts on the front end flange, the force generated by the elastic element 4 and the elastic force of the spring 7 are balanced with the system liquid pressure, and the inlet pressurizing effect of the liquid cooling pump is achieved. The moving distance of the elastic element assembly 2 has a certain relation with the vacuum degree inside the elastic element assembly 2.