Cooling System

Abstract

The invention discloses a refrigeration system. The refrigeration system includes: a compressor, an evaporator, a condenser, a first four-way reversing valve, a second four-way reversing valve and an intercooler. The compressor includes a first cylinder, a second Two cylinders and injection passages, the first cylinder is provided with the first air return port and the first exhaust port respectively communicated with the cylinder chamber of the first cylinder, and the second cylinder is provided with the second cylinder chamber respectively communicated with the cylinder chamber of the second cylinder Two air return ports and the second exhaust port; the air injection port communicates with the cylinder chamber of the first cylinder through the injection channel; a first throttling device is provided between the evaporator and the condenser; the first four-way reversing valve includes the first to The fourth valve port; the second four-way reversing valve includes fifth to eighth valve ports. By setting the injection channel, the low-temperature heating capacity of the refrigeration system can be improved, the energy efficiency of the refrigeration system can be improved, and thus the working efficiency of the refrigeration system can be improved.

Description

technical field [0001] The invention relates to the field of refrigeration and heating, in particular to a refrigeration system. Background technique [0002] As the ambient temperature decreases, the specific volume of the refrigerant increases, and the demand for heat in the room increases. Insufficient heating capacity at low temperature has become a major criticism of the air conditioning system. In addition, under this low temperature condition, with the increase of the compression ratio, the efficiency of the heating cycle will decrease. Decrease, and the loss of the refrigeration system increases, so the energy efficiency of the air conditioning system drops significantly. [0003] In related technologies, the conventional jet model can improve the low-temperature heating capacity to a certain extent, but since the basic displacement of the compressor cannot be changed, the capacity improvement is limited by the cycle, and the conventional jet model, due to the jet mi...

AI Technical Summary

Problems solved by technology

[0002] As the ambient temperature decreases, the specific volume of the refrigerant increases, and the demand for heat in the room increases. Insufficient heating capacity at low temperature has become a major criticism of the air conditioning system. In addition, under this low temperature condition, with the increase of the compression ratio, the efficiency of the heating cycle will decrease. decrease, and the loss of the refrigeration system increases, so the energy efficiency of the air conditioning system drops significantly

[0003] In related technologies, the conventional jet model can improve the low-temperature heating capacity to a certain extent, but since the basic displacement of the compressor cannot be changed, the capacity improvement is limited by the cycle, and the conventional jet model, due to the jet mixing loss , so although the refrigeration cycle is optimized, the improvement in energy efficiency is not high

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