Novel refrigeration compressor

Abstract

The invention discloses a novel refrigeration compressor, and belongs to the technical field of compression refrigeration. The novel refrigeration compressor comprises a cylinder, a piston, connectingrods, an air suction valve, an exhaust valve, an intercooler and a connecting pipeline. The compressor is provided with the six-stage cylinder and the three pistons, the six-stage cylinder and the three pistons are connected through the connecting rods via the axes of the pistons, continuous compression of gas is achieved through movement of the pistons, meanwhile, the intercooler is arranged between the two-stage cylinder, so the temperature is prevented from being too high, and the specific volume of the gas can be reduced. According to the compressor, multi-stage compression can be achieved, then the exhaust temperature is reduced, the unit refrigerating capacity and the unit volume refrigerating capacity of the compressor are improved, the energy consumption of the compressor is reduced, and the refrigerating coefficient is increased.

Description

technical field [0001] The invention belongs to the technical field of compression refrigeration, and in particular relates to a novel refrigeration compressor. Background technique [0002] The refrigeration compressor is the main equipment in the compression refrigeration system. It upgrades the low-pressure gas to high-pressure gas and is the heart of the refrigeration system. It sucks low-temperature and low-pressure refrigerant gas from the suction pipe, compresses it, and discharges high-temperature and high-pressure refrigerant gas from the exhaust pipe to provide power for the refrigeration cycle. In many practical applications, the compressor works under the condition of high compression ratio. If single-stage compression is used, there will be many problems, such as: the exhaust temperature rises, and the high temperature will easily cause equipment damage; The unit cooling capacity and unit volume cooling capacity are greatly reduced; the power consumption of th...

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Problems solved by technology

A flow equalization device is installed in the inter-stage return pipe, which can improve the airflow state of the inter-stage return pipe, thereby improving the working efficiency of the two-stage compression part and the efficiency of the multi-stage compressor, but this multi-stage compressor Without an interstage cooler, the exhaust temperature may be too high, affecting the efficiency of the compressor, and the compression ratio is still limited

Patent CN201420295304.0 also proposes a multi-stage compressor, which is equipped with three-stage cylinders, which can prevent the gas volume from existing in the intermediate cavity of the front-stage cylinder and the rear-stage cylinder and cause excessive pressure fluctuations in the intermediate cavity, ensuring that the front and rear stages The continuity of cylinder suction improves the performance of multi-stage compressors, but this type of compressor has a complex structure and a large footprint

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