Air conditioning unit, screw compressor and its casing and slide valve

Abstract

The invention discloses a sliding valve which is applicable to a screw rod compressor. The sliding valve comprises a sliding valve rod and a sliding valve body which is fixedly connected to one end of the sliding valve rod, wherein a guide section is fixedly arranged at one end of the sliding valve body far away from the sliding valve rod; the inside of the guide section is hollow to form an air channel; an air hole is formed in the wall of the air channel; through the structure design of the sliding valve, the problems of great vibration and large noise of the sliding body when the screw rod compressor operates under low load can be effectively avoided. The invention also discloses a shell which is used together with the sliding body cooperatively; a first bulge protruding in a direction close to a screw rod rotor is arranged on the upper wall of the shell; a second bulge protruding in a direction close to the upper wall is arranged at one part contacted with the screw rod rotor of the shell; the first bulge and the second bulge are arranged oppositely; a guide opening in which the guide section slides is formed between the first bulge and the second bulge. The invention also provides a screw rod compressor and an air conditioning unit.

Description

technical field [0001] The present invention relates to the technical field of air-conditioning manufacturing, more specifically, to a screw compressor, a slide valve and a housing thereof, and to an air-conditioning unit with the above-mentioned screw compressor. Background technique [0002] The screw air compressor is a high-speed rotary volumetric compressor, which compresses gas by reducing the working volume, including two high-speed rotary screw rotors 05, a slide valve to adjust the effective axial working length of the screw rotor, and a slide valve. The oil piston 01 and the oil cylinder block 02 used in conjunction with the valve. Among them, such as figure 1 As shown, the spool valve includes a spool valve rod 03 and a spool valve body 04, the oil piston 01 and the spool valve rod 03 are arranged inside the oil cylinder body 02, and the spool valve body 04 is in contact with the screw rotor 05 and is supported by the screw rotor 05, namely forming Cantilever su...

AI Technical Summary

Problems solved by technology

[0006] In view of this, the purpose of the present invention is to provide a slide valve, the structural design of which can effectively solve the problem of large vibration and loud noise of the slide valve body when the screw compressor is running at low load. Provided is a housing for a screw compressor that can be used in conjunction with a slide valve, and a screw compressor and air conditioning unit

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