An ultra-high-speed observation device for simulating the transient state of compressor oil-gas two-phase leakage

Abstract

The invention provides a superspeed observation apparatus simulating a transient state of compressor oil and gas two-phase release. The apparatus comprises a constant pressure gas cylinder, a pressure reducing valve, a control valve, a compressor radial simulating device and a photographic device. The constant pressure gas cylinder is connected in series with the pressure reducing valve, the control valve and the compressor radial simulating device. A pressure gauge is arranged between the pressure reducing valve and the control valve, and the photographic device is placed on one side of the compressor radial simulation device. The compressor radial simulator comprises a microchannel main body, a sealing fin, a glass sheet and two feeler gauges disposed on one side surface of the glass sheet. A groove is arranged in one side surface of the microchannel main body, and an oil inlet hole, an air inlet hole and an air exhaust hole are arranged at intervals on the side surface adjacent to or opposite to the side surface. The microchannel main body is connected to the control valve through the air inlet hole; the sealing fin is mounted in the groove portion and forms a channel cavity with the groove; and the glass sheet and the two feeler gauges are placed in the channel cavity. According to the invention, accurate equivalent measurement can be carried on actual leakage of an internal working medium of a rotary compressor.

Description

technical field [0001] The invention relates to the technical field of compressor radial leakage detection, in particular to an ultra-high-speed observation device for simulating the transient state of oil-gas two-phase leakage of a compressor. Background technique [0002] Compressor is an important fluid machinery with various types, and rotary compressor is just one of them; compressor, as the heart of refrigeration system, can be applied in many fields, and it is one of the indispensable machinery in people's life Therefore, the working efficiency of the compressor has been widely concerned by people. Among them, the volumetric efficiency is an important index to measure the working performance of the compressor, and the volumetric efficiency directly affects the working efficiency of the compressor. There are four main factors that affect the volumetric efficiency of the compressor: clearance volume, the impact of intake and exhaust pressure loss, the impact of heat exc...

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Problems solved by technology

[0004] However, it is difficult to measure the gas leakage of the rotary compressor on the body of the rotary compressor, and the mechanism can only be abstracted based on its motion principle for research. At present, there are few patents on leakage measurement in the field of leakage characteristic testing of rotary compressors. , the measurement schemes in the relevant literature are still limited to the results of software simulations, and some schemes that lack the accuracy of measurement data

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