Oil separation device capable of reducing oil discharge rate and rotary compressor

Abstract

An oil separation device for reducing oil discharge rate and a rotary compressor, the oil separation device comprises a guide part for changing airflow direction and a fixing part connected with a silencer, the guide part is composed of an arc-shaped surface and an extending flange, the arc-shaped surface extends towards the upper part of the silencer exhaust hole along the periphery of the silencer exhaust hole, and the extending flange is arranged on the arc-shaped surface. The extending flange is connected with the edge of the arc-shaped surface; the fixing part is used for connecting the arc-shaped surface and the extending flange with the outer surface of the silencer; and air flow exhausted from the silencer exhaust hole is horizontally exhausted through a channel formed by the arc-shaped surface and the extending flange. The rotary compressor is provided with the oil separation device, so that the air flow direction of a refrigerant is changed, the oil-gas separation efficiency is improved, and the oil discharge rate is lower; and during unsteady-state operation such as cold start, the amount of lubricating oil in the oil pool can be ensured, so that the mixed viscosity of the refrigerant / lubricating oil in the oil pool and the reliability of the compressor are ensured. The oil separation device does not affect the silencing effect and increase the power consumption of the compressor.

Description

technical field [0001] The invention belongs to the technical field of compressors, and in particular relates to an oil separation device and a rotary compressor for reducing the oil discharge rate. Background technique [0002] Lubricating oil plays an important role in lubrication, sealing, cooling, and noise reduction in the compressor, so it is necessary to ensure that there is enough lubricating oil in the oil pool during the operation period. During the operation of the compressor, the end of the crankshaft extends into the lubricating oil pool at the bottom of the compressor, and the lubricating oil is supplied to each friction pair through the oil stirring plate in the center oil hole to ensure the smooth operation of each friction pair. Lubricating oil exists in the gaps of various parts in the compressor, and reduces the leakage of refrigerant by sealing the leakage channels, thereby ensuring the volumetric efficiency and capacity of the compressor. [0003] When ...

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Problems solved by technology

[0006] The purpose of the present invention is to provide an oil separation device and a rotary compressor that reduce the oil discharge rate, change the airflow direction at the outlet of the muffler, solve the problem of high oil discharge rate caused by oil droplets broken by high-speed airflow, and the cold start process In the middle, the viscosity of the oil pool caused by insufficient lubricating oil in the oil pool caused by a large amount of refrigerant / lubricating oil mixture being blown into the upper cavity of the motor does not affect the noise reduction effect and increase the power consumption of the compressor

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