Refrigeration and supercharging system for pipeline structure environmental simulation

A technology of environmental simulation and pressurization system, which is applied to the testing of machines/structural components, measuring devices, instruments, etc., and can solve problems such as pipeline damage and pipeline system vibration faults

Active Publication Date: 2016-03-30
TIANJIN AEROSPACE RELIA TECH +3
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the vibration of the use environment and the impact of drastic changes in the external environment such as temperature and pressure, these

Method used

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  • Refrigeration and supercharging system for pipeline structure environmental simulation
  • Refrigeration and supercharging system for pipeline structure environmental simulation
  • Refrigeration and supercharging system for pipeline structure environmental simulation

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] Such as figure 1 As shown, a refrigeration and pressurization system used for the simulation of pipeline structure environment uses circulating helium to cool and pressurize the test piece, which can realize the low temperature zone above the liquid nitrogen temperature and the liquid helium temperature below the liquid nitrogen temperature zone. The deep low temperature zone above the low temperature zone, and realize the precise adjustment of pressure.

[0030]Including helium circulation pump 1; buffer tank stop valve 2; buffer tank 3; bypass valve 4; normal temperature inlet valve 4a; normal temperature return valve 4b; main flowmeter 5a; bypass flowmeter 5b; helium exhaust Valve 6; primary recuperator heat exchanger 7; primary recuperator heat exchanger liquid helium inlet 7a; primary recuperator heat exchanger liquid helium outlet 7b; prim...

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Abstract

The invention relates to a refrigeration and supercharging system for pipeline structure environmental simulation. The system includes a high pressure helium inlet (16), a first level heat recovery exchanger (7), a second level heat recovery exchanger (10), a liquid nitrogen heat exchanger (8), and a liquid helium heat exchanger (9); high pressure helium is input into the high pressure helium inlet (16), and then successively passes through the first level heat recovery exchanger (7), the liquid nitrogen heat exchanger (8), the second level heat recovery exchanger (10), and the liquid helium heat exchanger (9), and finally is output to an object to be tested; return gas of the object to be tested successively passes through the second level heat recovery exchanger (10) and the first level heat recovery exchanger (7), and then is recycled again; and liquid nitrogen passes through the liquid nitrogen heat exchanger (8) and then is recycled, and liquid helium successively passes through the liquid helium heat exchanger (9), the second level heat recovery exchanger (10), and the first level heat recovery exchanger (7), and then is recycled. The system can simulate an integrated environment of pressure and low temperature, and can simulate an actual environment of high pressure, low temperature, temperature drop, and temperature rise.

Description

technical field [0001] The invention belongs to multi-stage refrigeration using liquid nitrogen and liquid helium and a control method thereof, which can be used for pressure and low-temperature environment simulation of pipelines, shells, cabins and other structures, and belongs to the technical field of refrigeration system design and control. Background technique [0002] The pipeline system is a device for transporting gas, liquid or fluid with solid particles connected by pipes, pipe connectors, valves and pipe supports. With the rapid development of my country's industry, pipeline systems have been more and more widely used in various industrial installations such as water supply and drainage, heat supply, gas supply, long-distance transportation, agricultural irrigation, and hydraulic engineering. In the field of aerospace, engine pipelines are mainly used for the delivery of media such as hydraulic oil, fuel, lubricating oil and air, and are an important part of engi...

Claims

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Application Information

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IPC IPC(8): G01M99/00
Inventor 严鲁涛李红苏玉磊周家屹卞荣耀刘玥
Owner TIANJIN AEROSPACE RELIA TECH
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