Exhaust bearing block, screw compressor and air conditioning unit

Abstract

The invention relate to an exhaust bearing block, a screw compressor and an air conditioning unit, wherein the exhaust bearing block comprises an exhaust cavity, an exhaust hole is formed in the exhaust cavity, the exhaust cavity is configured to have a plurality of turning structures, exhaust air flow can change directions for a plurality of times in the exhaust cavity, and finally is exhausted from the exhaust hole, the opening of the exhaust hole is designed in such a way that under the condition that the exhaust bearing block is covered by a shell, gas exhausted from the exhaust hole has components flowing in a rotating manner along the inner wall of the shell and around the axis of the shell. The exhaust bearing block can play the role of improving the oil separation efficiency from multiple aspects, including centrifugal effect, uniform flow field, impacting separation and the like.

Description

technical field [0001] The invention relates to the field of compressors, in particular to an exhaust bearing seat, a screw compressor and an air conditioner unit. Background technique [0002] In the screw compressor, the bearing seat at the discharge end is an indispensable structure, which plays the role of fixing the exhaust end of the rotor, providing the oil chamber of the slide valve, providing the exhaust channel, and fixing the oil filter. The exhaust bearing seat generally has a male rotor bearing cavity, a female rotor bearing cavity, a slide valve oil cavity and an exhaust cavity, as well as an oil return circuit and an oil supply circuit. [0003] Such as figure 1 As shown, the oil separator barrel 1' covers the exhaust bearing seat 2' inside, the exhaust chamber 3' on the exhaust bearing seat 2' is generally axially opened, and the oil separator barrel 1' is provided with an oil filter 4', Along the airflow direction, since the exhaust port 5' of the oil sepa...

AI Technical Summary

Problems solved by technology

[0004] The opening of the exhaust chamber of the exhaust bearing seat in the prior art is along the axial direction, and its position is above or below. After the refrigerant comes out of the exhaust chamber or exhaust pipe, it is difficult to evenly pass through the oil filter and then discharged. The exhaust port, which affects the oil separation efficiency of the oil separation filter

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