Compressor and compression circulation system

Abstract

The invention provides a compressor and a compression circulation system. The compressor comprises a first cylinder body, a second cylinder body and a piston, the first cylinder body and the second cylinder body are connected in a sleeved mode to form an inner cavity, and the piston reciprocates in the inner cavity; an annular groove is formed between the first cylinder body and the second cylinder body, a porous bearing sleeve is installed in the annular groove, and the porous bearing sleeve is a part of the side wall of the inner cavity; and a through hole is formed in the first cylinder body to form a liquid supplementing opening, and the porous bearing sleeve communicates with one end of the liquid supplementing opening. According to the compressor, the liquid supplementing opening is formed in the first cylinder body, the porous bearing sleeve is arranged between the first cylinder body and the second cylinder body, therefore, the liquid supplementing opening communicates with the inner cavity through the porous bearing sleeve, the inlet position of liquid entering from the porous bearing sleeve is determined according to the positions of the piston and the porous bearing sleeve and the pressure difference, liquid entering from the liquid supplementing opening achieves the effects of lubricating, liquid supplementing, sealing and cooling on the compressor, the temperature in the compression cavity is reduced, and oil-free operation of the compressor is achieved.

Description

Technical field [0001] The present invention relates to the field of refrigeration techniques, and more particularly to a compressor and a compression cycle system. Background technique [0002] In the field of refrigeration technology, the piston compressor is widely used due to its compact structure, good sealing, and has high volume efficiency, in particular a small refrigeration device for a multimodal region; conventional refrigeration piston compressor structure adopts lubricating oil to achieve cylinder piston. The cooling of lubrication, gap seals and compression processes result in low temperature or high temperature conditions. [0003] The existing compressor can be achieved, and it is necessary to increase the heat exchanger before the qi interface, and the liquid refrigerant is converted into a gaseous to enter the compressor to make up the compressor, and the liquid refrigeration cannot be directly refined. The agent is supplied into the compressor. Inventive conte...

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Problems solved by technology

[0004] The present invention provides a compressor and a compression circulation system to solve the defect that the liquid refrigerant cannot be directly replenished into the compression cavity in the prior art. A porous bearing sleeve is set between the liquid replenishment port and the inner cavity, so that the compressor can realize that the liquid refrigerant enters the inner cavity through the liquid replenishment port and the porous bearing sleeve to replenish the compressor, reduce the friction and leakage of the compressor, and reduce the pressure of the compression cavity. The internal temperature can be realized to realize the oil-free operation of the compressor, thereby reducing energy consumption and equipment volume

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