Double-stage air supplementing horizontal rolling rotor compressor

Abstract

The invention provides a double-stage air supplementing horizontal rolling rotor compressor which comprises a shell, a medium pressure cavity and an air supplementing port. The shell forms a cavity for accommodating assemblies of the compressor, and freezing oil is injected to the bottom of the cavity to form an oil pond; the part, close to the oil pond, of the medium pressure cavity stretches faraway from the oil pond; one end of the air supplementing port communicates to the medium pressure cavity while the other end of the air supplementing port stretches out of the cavity, and the included angle between the air supplementing port and the liquid level of the oil pond is greater than zero degree; and the part, close to the oil pond, of the medium pressure cavity stretches, far away fromthe oil pond, above the shell to form a bump protruding from the inner wall of the medium pressure cavity. The part of the medium pressure cavity soaked in the freezing oil is reduced. When supplemented air is entrained with a liquid refrigerant, influence of the liquid refrigerant on the temperature of the freezing oil is reduced, so that the refrigerant is further unlikely to be blended into the freezing oil. The proportion of lubricating oil is guaranteed, and the integral lubricating performance of the freezing oil is guaranteed, so that the part, in contact with the freezing oil, of thecompressor is unlikely to wear.

Description

technical field [0001] The invention relates to the technical field, in particular to a two-stage gas-supplementing horizontal rolling rotor compressor. Background technique [0002] Horizontal rolling rotor compressors are mostly used in refrigerators, commercial refrigeration, and refrigeration equipment; they can also be used in cabin air conditioners and vehicle air conditioners. Compared with ordinary single-stage rolling rotor horizontal compressors, the two-stage air-supplementing horizontal rolling rotor compressors have higher cooling and heating capabilities under the conditions of larger pressure ratio and larger pressure difference. [0003] The horizontal rolling rotor compressor is equipped with an oil pool, which is composed of refrigerated oil. The refrigerated oil mainly performs the functions of lubrication, sealing, and cooling. Due to the limited space at the upper and lower ends of the horizontal rolling rotor compressor, the parts of the pump body of t...

AI Technical Summary

Problems solved by technology

[0007] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the temperature of the lubricating oil is too low when the supplementary air carries liquid refrigerant in the prior art, thereby providing a two-stage supplementary air horizontal rolling rotor compressor

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