Closed circulation centrifugal compressor characteristic test device

A centrifugal compressor and closed cycle technology, which is applied in the field of compressors, can solve the problems such as the inability to model and replace the characteristics of the working medium compressor, and achieve the effects of easy large-scale promotion and utilization, reducing complexity and reducing performance test costs.

Active Publication Date: 2020-07-07
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

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  • Closed circulation centrifugal compressor characteristic test device
  • Closed circulation 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 circulation centrifugal compressor characteristic test device. The device comprises an inert mixed gas storage tank, a gas inlet pressure regulator, a pressure stabilizing tank, a flow meter, an intake and exhaust temperature and pressure probe, a compressor tester, a high-temperature exhaust valve, a throttle valve, a pressure reducing valve, a cooling water and water inlet and drainage device, a heat exchanger, a gas composition analyzer and a vacuum pump which are sequentially connected to form a closed circulation loop, inert mixed gas is used as a workingmedium, a low pressure air source, a flow regulating valve, a flow fine adjusting valve, a heater and a centripetal turbine are connected to form an open circulation loop, and air is used as a working medium. The device has the obvious characteristics of simple and reasonable structural design, resource conservation and the like, and is easy for large-scale popularization and application.

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 Applications(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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