A kind of inert gas closed circulation radial impeller mechanical performance test method

A closed-loop, inert gas technology, used in mechanical equipment, non-variable-capacity pumps, engine components, etc., can solve problems such as inability to consider influencing factors, impeller mechanical aerodynamic characteristics cannot guarantee accuracy, etc., to reduce performance test costs. , The effect of reducing the cost of experimental construction and transformation, and being easy to promote and use on a large scale

Active Publication Date: 2022-07-08
BEIJING POWER MACHINERY INST
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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

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  • A kind of inert gas closed circulation radial impeller mechanical performance test method
  • A kind of inert gas closed circulation radial impeller mechanical performance test method
  • A kind of inert gas closed circulation radial impeller mechanical performance test method

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Embodiment Construction

[0018] The test method for the mechanical properties of the inert gas closed-loop radial impeller of the present invention is based on the figure 1 The shown inert gas closed-loop 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 anti-surge valve, a throttle valve 1, a bypass valve 2, a regenerator, a heater, a centrifugal 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 circulation 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 centrifugal turbine, the upstream of the centrifugal turbine is connected to the heater, the downst...

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Abstract

The invention discloses a characteristic test method for a closed-loop radial-flow impeller based on the structure of a turbocharger. The turbocharger is used as the basic structure, and the original centripetal turbine or centrifugal compressor is replaced with a tester. And the centrifugal compressor of the turbocharger is used as the power consumption device, or the centrifugal turbine of the turbocharger is used as the power device; The closed loop with gas as the working fluid can realize the closed loop utilization of the inert gas by cooperatively controlling multiple test equipments. The present invention has remarkable features such as ingenious and reasonable structure design, resource saving and the like, and is easy to popularize and apply on a large scale.

Description

technical field [0001] The invention belongs to the technical field of engine performance testing, and relates to a method for testing the mechanical performance of a radial impeller, in particular to a method for testing the mechanical performance of an inert gas closed-cycle radial impeller 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. Theoretical an...

Claims

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Application Information

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Patent Type & Authority Patents(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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