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Method for testing mechanical property of inert gas closed cycle radial flow type impeller

A closed cycle, inert gas technology, applied in the direction of mechanical equipment, non-variable pumps, engine components, etc., can solve the problems that the influence factors cannot be considered, and the accuracy of the aerodynamic characteristics of the impeller machinery cannot be guaranteed, so as to reduce the cost of performance tests , Reduce the cost of test construction and modification, and reduce the complexity

Active Publication Date: 2021-04-06
BEIJING POWER MACHINERY INST
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Both theoretical analysis and numerical simulation have their own limitations, and cannot consider all the influencing factors in the actual operating environment, and the existing loss model is established based on the air working fluid, and the aerodynamic characteristics of the turbomachinery obtained through the two cannot guarantee its accuracy sex

Method used

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  • Method for testing mechanical property of inert gas closed cycle radial flow type impeller
  • Method for testing mechanical property of inert gas closed cycle radial flow type impeller
  • Method for testing mechanical property of inert gas closed cycle radial flow type impeller

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Embodiment Construction

[0018] The mechanical performance test method of the inert gas closed circulation radial flow impeller of the present invention is based on figure 1 The shown inert gas closed circulation radial flow impeller mechanical performance test device is completed. The test device includes an inert gas storage tank, a surge tank, a centrifugal compressor, an exhaust valve, a throttle valve 1, a bypass valve 2, a regenerator, a heater, a centripetal turbine, a throttle valve 2, and a throttle valve 3. Bypass valve 1. Vacuum pump, motor; the inert gas storage tank is connected to the connecting pipeline between the surge tank and the regenerator to provide working fluid for the closed loop, and one end of the surge tank is connected to the upstream of the centrifugal compressor , the centrifugal compressor is coaxially connected to the motor, the motor is coaxially connected to the centripetal turbine, the upstream of the centripetal turbine is connected to the heater, the downstream of...

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Abstract

The invention discloses a method for testing mechanical property of an inert gas closed cycle radial flow type impeller based on a turbocharger structure. The method comprises the steps: by taking the turbocharger as a basic structure, replacing an original centripetal turbine or a centrifugal compressor of the turbocharger with the tester, and taking the centrifugal compressor of the turbocharger as as a power consumption device or taking the centripetal turbine of the turbocharger as a power device. The tester, a heater, a heat regenerator and a cooler form a closed loop with inert gas as a working medium through pipelines and valves, and closed cyclic utilization of the inert gas is achieved by cooperatively controlling a plurality of test devices. The method has the remarkable characteristics of ingenious and reasonable structural design, resource saving and the like, and is prone to large-scale popularization and application.

Description

technical field [0001] The invention belongs to the technical field of engine performance testing, and relates to a radial flow impeller mechanical performance test method, in particular to an inert gas closed circulation radial flow impeller mechanical performance test method based on a turbocharger structure. Background technique [0002] At present, a variety of inert gases including helium, argon, xenon and their mixtures are used as substitutes for air, and are increasingly widely used in various closed and semi-closed Brayton cycle systems. As one of the key components of the energy conversion system, the inert gas turbomachine usually works under various working conditions, and its aerodynamic performance directly affects the efficiency of the entire system. Therefore, it is very necessary to obtain the aerodynamic characteristic data of the turbomachinery under all working conditions for the safe and reliable operation of the system. Both theoretical analysis and nu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D27/00F01D21/00
CPCF04D27/001F01D21/003
Inventor 秦勇王大磊郑振江张希马同玲王正
Owner BEIJING POWER MACHINERY INST
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