A Closed Cycle Centrifugal Compressor Characteristic Test Device

A centrifugal compressor and closed-loop technology, applied in the field of compressors, can solve the problems of inability to model the characteristics of the working medium compressor, and achieve the effects of easy large-scale promotion and utilization, energy saving, and reduction of complexity.

Active Publication Date: 2022-02-11
BEIJING POWER MACHINERY INST
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Obviously, when the turbomachine uses an alternative working fluid, the adiabatic index of the working fluid will change accordingly, and the traditional modeling criterion of the turbomachine will no longer be applicable, so the substitute working fluid cannot be obtained by modeling the experimental data of the turbine characteristics of the air working fluid Compressor Characteristics

Method used

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  • A Closed Cycle Centrifugal Compressor Characteristic Test Device
  • A Closed Cycle Centrifugal Compressor Characteristic Test Device

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Embodiment Construction

[0022] In order to make the purpose, content and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] refer to figure 1 As shown, the closed cycle centrifugal compressor characteristic test device of this embodiment includes: a closed cycle loop formed by being connected to the compressor tester, and an open loop loop connected to the compressor tester; wherein, the closed cycle loop Including an inert mixed gas storage tank, a surge tank, a flow meter, a pressure reducing valve, a heat exchanger, and a gas composition analyzer; an inert mixed gas storage tank, which provides an inert mixed gas working medium, and the inert mixed gas working medium passes through the The pressure regulator box and the flow meter are connected to the air inlet of the compressor tester; the gas after the test is discharged from the...

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Abstract

The invention discloses a closed cycle centrifugal compressor characteristic test device, comprising: an inert mixed gas storage tank, an intake pressure regulator, a pressure stabilizing box, a flow meter, intake and exhaust temperature and pressure probes, and a compressor test The device, high temperature exhaust valve, throttle valve, pressure reducing valve, cooling water and water inlet and drainage device, heat exchanger, gas composition analyzer and vacuum pump are connected in sequence to form a closed loop, with inert mixed gas as the working medium; while the low pressure The air source, flow regulating valve, flow fine-tuning valve, heater and centripetal turbine are connected to form an open circulation loop, with air as the working medium. The invention has remarkable features such as simple and reasonable structural design, resource saving, etc., and is easy to be popularized and applied on a large scale.

Description

technical field [0001] The invention belongs to the technical field of compressors, and relates to a closed-cycle centrifugal compressor characteristic test device using an inert mixed gas as a working medium. Background technique [0002] Currently, including helium, supercritical CO 2 Many gases, such as working fluids, have been used in closed and semi-closed Brayton cycles as substitutes for air or gas. The similarity theory shows that for an ideal gas, the aerodynamic characteristics of the turbine are dimensionless functions of the reduced velocity parameter, the reduced flow parameter, the Reynolds number and the adiabatic exponent. Obviously, when the turbomachine uses alternative working fluid, the adiabatic index of the working fluid will change accordingly, and the traditional modeling criterion of the turbomachine will no longer be applicable, so the substitute working fluid cannot be obtained by modeling the experimental data of the turbine characteristics of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D27/00
CPCF04D27/001
Inventor 马同玲秦勇王大磊张希李淑芳
Owner BEIJING POWER MACHINERY INST
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