System for testing cavitation performance of incoming flow containing gas of vane pump

Abstract

The invention discloses a cavitation performance testing system for incoming flow containing gas of a vane pump. The system is mainly composed of a liquid medium circulation system (a main water tank, an inlet pipeline, a gas mixing device, an outlet pipeline, an exhaust water tank and a water return pipeline), a gas supply system (an air compressor, a gas surge tank and a gas inlet pipeline) and a pump section (a vane pump and a motor). A bottom outlet of the main water tank is connected to an inlet end of the vane pump through an inlet pipeline, the gas mixing device is mounted on the inlet pipeline and connected with the gas inlet pipeline, an outlet end of the vane pump is connected with an outlet pipeline, an outlet of the outlet pipeline is suspended at an opening of the exhaust water tank, and a bottom outlet of the exhaust water tank is connected to the upper portion of the main water tank through a water return pipeline. An open circulation loop is formed, the cavitation performance of the vane pump under the condition that incoming flow contains gas can be tested, and the system is simple in structure, convenient to operate and high in testing precision.

Description

Technical field [0001] The present invention belongs to the field of pump performance testing, particularly relates to a vane pump to flow cavitation performance test system containing gas. Background [0002] With the continuous development of society and the continuous progress of science and technology, the transportation of gas-containing media is widely present in the fields of sewage treatment, petrochemical industry, food processing and other fields, and vane pumps have received more and more attention as the core equipment commonly used in the above fields. [0003] In the process of conveying the air-containing medium, due to the complexity of the conveyed medium, the cavitation performance of the vane pump will change significantly, and the cavitation performance will drop to a certain extent and even affect the normal operation of the entire transportation system. [0004] At present, although there are more experimental studies on the cavitation performance of vane pu...

AI Technical Summary

Problems solved by technology

The difficulty is that the research on the cavitation performance of the vane pump requires the use of a vacuum pump to form a vacuum in the water storage tank, and the gas content in the incoming flow cannot be controlled.

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