Gas expansion device closure test system and test method

Abstract

The invention discloses a gas expansion device closure test system and test method. The basic operation process of the system includes that the gas working medium of a low pressure gas storage tank is compressed to raise pressure through a gas compression device, the gas working medium enters a high pressure gas storage tank, the high pressure gas is regulated to drive a gas expansion device to be tested to meet test conditions, the high pressure gas expands, the pressure goes down, the gas enters the low pressure gas storage tank, and one circle is completed; the gas expansion device to be tested is connected to a dynamometer through a gearbox, the rotating speed control and power measurement are implemented, pressure, temperature and vibration sensors measure the inlet, outlet and internal pressure, temperature distribution and rotor vibration parameters of the gas expansion device as required, and the test development and performance detection of the gas expansion device can be implemented. The inlet and outlet pressure control, rotating speed control and long-term continuous operation of the gas expansion device can be implemented easily; in addition, owing to the closure teat system, the working medium can be complex one, single one, flammable one, explosive one or toxic one; the system has the advantages of simple operation, low operation cost and wide application range.

Description

technical field [0001] The present invention relates to an experimental system and an experimental method of a gas expansion device, in particular to a closed experimental system and an experimental method of a gas expansion device, which can be applied to residual pressure and intermediate decompression of gas working fluid in various chemical machinery industries R&D and testing of process energy recovery equipment. Background technique [0002] At present, there is a large amount of waste of gas pressure energy in industries such as iron and steel, nonferrous metals, coal, building materials, chemicals, and textiles in my country. Energy recovery in various chemical machinery industries has significant social and economic benefits. The gas expander is the core equipment for pressure energy recovery, which can be used to replace throttling and pressure reducing valves in various chemical industries, so as to achieve energy recovery and meet the pressure drop required by th...

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Problems solved by technology

[0003] At present, various expansion devices that can be applied to the recovery of pressure energy in the internal process links of different chemical machinery industries have gradually attracted people's attention, and a variety of patents have been published. form, the application working fluid also includes air, nitrogen, oxygen, natural gas, hydrogen or other flammable, explosive and toxic gases. Immature, there is no perfect experimental platform and testing method suitable for this type of product at present, and there are obviously greater technical and safety risks in conducting experiments directly on the use site

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