Pump valve assembly compensator air cavity inflation pressurization system

Abstract

The invention discloses a pump valve assembly compensator air cavity inflating and pressurizing system, and relates to an inflating and pressurizing system. The invention aims to solve the problem that the pressure of a gas cavity of a compensator needs to be strictly controlled because liquid and gas need to be filled before a pump valve assembly is delivered to a system and the filling pressure is crucial to the heat balance of a whole fluid loop. The device comprises an air cavity vacuumizing passage, a liquid cavity vacuumizing passage and an air cavity pressurizing passage, the air cavity vacuumizing passage and the air cavity pressurizing passage are connected with the compensator air cavity, and the liquid cavity vacuumizing passage is communicated with the compensator liquid cavity. The invention belongs to the technical field of air cavity inflation pressurization.

Description

Technical Field

[0001] The invention relates to an inflation and pressurization system, belonging to the technical field of air cavity inflation and pressurization. Background Art

[0002] The fluid circuit integrated pump and valve assembly is the core component of a certain type of thermal control subsystem, which is used to drive the circulation of perfluorotriethylamine medium and realize load thermal control. The function of the fluid circuit integrated pump and valve assembly is mainly to circulate the perfluorotriethylamine medium inside the circuit. At the same time, the density of the medium changes when the temperature changes, and the compensator realizes the recovery and replenishment of the medium inside the fluid circuit. The pump and valve assembly needs to be filled with liquid and gas before the delivery system. The filling pressure is crucial to the thermal balance of the entire fluid circuit, so the compensator air cavity pressure needs to be strictly controlled. During the filling process, the entire fluid circuit must first be evacuated to 10Pa (absolute pressure), and then the gas circuit must be pressurized to 87.8±1kPa (absolute pressure), so a special filling system is required to fill the pump and valve assembly compensator with gas. Summary of the invention

[0003] The present invention aims to solve the problem that the pump and valve assembly needs to be filled with liquid and gas before being delivered to the system. The filling pressure is crucial to the thermal balance of the entire fluid circuit, so the compensator air cavity pressure needs to be strictly controlled. A pump and valve assembly compensator air cavity inflation and pressurization system is proposed.

[0004] The technical solution adopted by the present invention to solve the above problems is: the present invention comprises an air cavity vacuuming passage, a liquid cavity vacuuming passage and an air cavity pressurizing passage;

[0005] The air cavity vacuuming passage and the air cavity pressurizing passage are connected to the compensator air cavity, and the liquid cavity vacuuming passage is connected to the compensator liquid cavity.

[0006] Further, the air cavity vacuum pumping passage includes a service valve tooling, a first pressure sensor, a first ball valve, a second ball valve vacuum pump and a first pipeline;

[0007] The compensator air cavity is connected to the vacuum pump through a first pipeline, and the service valve tooling, the first pressure sensor, the first ball valve and the second ball valve are sequentially installed on the first pipeline.

[0008] Further, the liquid chamber vacuum pumping passage includes a second pressure sensor, a third ball valve and a second pipeline;

[0009] The compensator liquid chamber is connected to the vacuum pump through a second pipeline, and a second pressure sensor and a third ball valve are sequentially installed on the second pipeline.

[0010] Further, the air cavity pressurization passage includes a fourth ball valve, a pressure reducer, a gas cylinder and a third pipeline;

[0011] One end of the third pipeline is connected to the first pipeline, and the connection between the third pipeline and the first pipeline is located between the first ball valve and the second ball valve. The other end of the third pipeline is connected to the gas cylinder. The fourth ball valve and the pressure reducer are installed on the third pipeline in sequence.

[0012] The beneficial effects of the present invention are as follows: the present invention can evacuate the gas-liquid cavity and pressurize the gas cavity of the pump valve assembly compensator, monitor the switch status of the gas adding and discharging valve of the compensator, and ensure that the gas cavity of the compensator is filled to the required pressure value; the present invention has a simple operation process and high reliability, optimizes the entire filling process, and can complete the work of evacuating the gas cavity and liquid cavity of the compensator and pressurizing the gas cavity; the present invention can monitor the switch status of the gas adding and discharging valve of the compensator, and ensure that the gas cavity of the compensator is filled to the required pressure value; the present invention can be used for evacuating rubber and metal diaphragm tanks and filling the gas cavity. The filling pressure can be adjusted according to system requirements, and the pressure range is 10Pa~500kPa; BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0014] Figure 2 It is a schematic diagram of the air cavity vacuuming passage;

[0015] Figure 3 It is a schematic diagram of the vacuum path of the liquid cavity;

[0016] Figure 4 It is a schematic diagram of the air cavity pressurization passage;

[0017] Figures 1 to 4 Among them, 1-service valve tooling, 2-first pressure sensor, 3-first ball valve, 4-second ball valve, 5-vacuum pump, 6-first pipeline, 7-second pressure sensor, 8-third ball valve, 9-second pipeline, 10-fourth ball valve, 11-pressure reducer, 12-gas cylinder, 13-third pipeline. DETAILED DESCRIPTION

[0018] Specific implementation method 1: Figure 1 As shown, a pump-valve assembly compensator air cavity inflation and pressurization system includes an air cavity vacuuming passage, a liquid cavity vacuuming passage, and an air cavity pressurization passage;

[0019] The air cavity vacuuming passage and the air cavity pressurizing passage are connected to the compensator air cavity, and the liquid cavity vacuuming passage is connected to the compensator liquid cavity.

[0020] Specific implementation method 2: Figure 1 and Figure 2 As shown, on the basis of the specific implementation mode 1, the air cavity vacuum pumping passage includes a service valve tool 1, a first pressure sensor 2, a first ball valve 3, a second ball valve 4, a vacuum pump 5 and a first pipeline 6;

[0021] The compensator air cavity is connected to the vacuum pump 5 through the first pipeline 6, and the service valve tooling 1, the first pressure sensor 2, the first ball valve 3 and the second ball valve 4 are installed on the first pipeline 6 in sequence.

[0022] The air cavity vacuum path of the pump valve assembly compensator air cavity inflation pressurization system is as follows Figure 2 As shown, the service valve tooling 1 opens and closes the gas adding and discharging valve by adjusting the valve core of the compensator gas adding and discharging valve, the first pressure sensor 2 is used to monitor the pressure value during the vacuum pumping process of the air cavity, the first ball valve 3 and the second ball valve 4 are used to control the switch of the circuit, and the vacuum pump is used to evacuate the gas circuit to below 10Pa (absolute pressure).

[0023] Specific implementation method three: Figure 1 and Figure 3 As shown, based on the specific embodiments 1 and 2, the liquid chamber vacuum passage includes a second pressure sensor 7, a third ball valve 8 and a second pipeline 9;

[0024] The compensator liquid chamber is connected to the vacuum pump 5 through the second pipeline 9, and the second pressure sensor 7 and the third ball valve 8 are installed on the second pipeline 9 in sequence.

[0025] The vacuum path of the liquid cavity of the pump valve assembly compensator air cavity inflation pressurization system is as follows Figure 3 The first pressure sensor 2 is used to monitor the pressure value during the vacuuming of the liquid chamber, the third ball valve 8 is used to control the switch of the circuit, and the vacuum pump is used to vacuum the gas circuit to below 10Pa (absolute pressure).

[0026] Specific implementation method four: Figure 1 and Figure 4 As shown, on the basis of the specific embodiments 1 and 2, the air cavity pressurization passage includes a fourth ball valve 10, a pressure reducer 11, a gas cylinder 12 and a third pipeline 13;

[0027] One end of the third pipeline 13 is connected to the first pipeline 6, and the connection between the third pipeline 13 and the first pipeline 6 is located between the first ball valve 3 and the second ball valve 4. The other end of the third pipeline 13 is connected to the gas cylinder 12, and the fourth ball valve 10 and the pressure reducer 11 are installed on the third pipeline 13 in sequence.

[0028] The air cavity pressurization passage of the pump valve assembly compensator air cavity inflation pressurization system is as follows Figure 4 The service valve tooling is to open and close the gas adding and discharging valve by adjusting the valve core of the compensator gas adding and discharging valve. The first pressure sensor 2 is used to monitor whether the gas pressure output by the pressure reducer meets the input propulsion pressure requirement of the pump valve assembly. The first ball valve 3 and the fourth ball valve 10 are used to control the switch of the circuit. The pressure reducer is used to adjust the output pressure of the gas cylinder to the air cavity pressure required by the pump valve assembly. The gas cylinder is used to pressurize the air cavity of the pump valve assembly.

[0029] How it works

[0030] The entire working process includes three processes: air circuit vacuuming, liquid circuit vacuuming, and air circuit pressurizing. The service valve tooling 1, the first pressure sensor 2, the first ball valve 3, the second ball valve 4, and the vacuum pump 5 are connected in sequence by a pipeline to form an air cavity vacuuming passage. The second pressure sensor 7, the third ball valve 8, and the vacuum pump 5 are connected in sequence by a pipeline to form a liquid cavity vacuuming passage. The service valve tooling 1, the first pressure sensor 2, the first ball valve 3, the fourth ball valve 10, the pressure reducer 11, and the gas cylinder 12 are connected in sequence by a pipeline to form an air cavity pressurizing passage.

[0031] The above is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent replacement and improvement made to the above embodiments without departing from the content of the technical solution of the present invention, based on the technical essence of the present invention, within the spirit and principles of the present invention, still fall within the protection scope of the technical solution of the present invention.

Claims

1. A pump valve assembly compensator air cavity inflation and pressurization system, characterized in that: It includes an air cavity vacuuming passage, a liquid cavity vacuuming passage and an air cavity pressurizing passage; The air cavity vacuuming passage and the air cavity pressurizing passage are connected to the compensator air cavity, and the liquid cavity vacuuming passage is connected to the compensator liquid cavity.

2. A pump valve assembly compensator air cavity inflation and pressurization system according to claim 1, characterized in that: The air cavity vacuum pumping passage comprises a service valve tool (1), a first pressure sensor (2), a first ball valve (3), a second ball valve (4), a vacuum pump (5) and a first pipeline (6); The compensator air cavity is connected to the vacuum pump (5) via a first pipeline (6), and the service valve tooling (1), the first pressure sensor (2), the first ball valve (3) and the second ball valve (4) are sequentially installed on the first pipeline (6).

3. A pump valve assembly compensator air cavity inflation and pressurization system according to claim 1 or 2, characterized in that: The liquid chamber vacuum pumping passage comprises a second pressure sensor (7), a third ball valve (8) and a second pipeline (9); The compensator liquid chamber is connected to the vacuum pump (5) via a second pipeline (9), and a second pressure sensor (7) and a third ball valve (8) are sequentially mounted on the second pipeline (9).

4. A pump valve assembly compensator air cavity inflation and pressurization system according to claim 1 or 2, characterized in that: The air cavity pressurizing passage comprises a fourth ball valve (10), a pressure reducer (11), a gas cylinder (12) and a third pipeline (13); One end of the third pipeline (13) is connected to the first pipeline (6), and the connection between the third pipeline (13) and the first pipeline (6) is located between the first ball valve (3) and the second ball valve (4). The other end of the third pipeline (13) is connected to the gas cylinder (12), and the fourth ball valve (10) and the pressure reducer (11) are sequentially installed on the third pipeline (13).

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