Freon-free frequency-conversion air conditioner system

Abstract

The invention provides a freon-free frequency-conversion air conditioner system, comprising an outdoor heat exchanger, an indoor heat exchanger and a compressor which are serially connected to form a circulation loop via a refrigerant pipeline, wherein the compressor comprises an air supplement opening, and an air supplement branch which is connected to the air supplement opening is arranged on a bypass of the refrigerant pipeline between the indoor heat exchanger and the outdoor heat exchanger, therefore, gaseous refrigerant can be selectively supplemented to a compressing chamber of the compressor. The Freon-free frequency-conversion air conditioner system is beneficial to solving of the problems of poor refrigerating capacity and poor heating capacity of the prior art under severe environment.

Description

technical field [0001] The invention relates to a fluorine-free frequency conversion air conditioning system. Background technique [0002] The fluorine-free inverter air conditioning system of the prior art is in a high-temperature outdoor environment. As the outdoor temperature rises, the condensing pressure increases, the compression ratio increases, and the compressor exhaust temperature rises. Even shutdown protection, the maximum speed of the inverter compressor cannot be fully utilized, and the cooling capacity is reduced; in an ultra-low temperature environment, the same heating capacity will be greatly reduced, and the heat load required by the user will increase greatly, which cannot meet the heat demand of the user. . Contents of the invention [0003] In view of the problems existing in the related art, the object of the present invention is to provide a fluorine-free frequency conversion air conditioning system, which improves the ability of cooling at ultra-...

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Problems solved by technology

[0002] The fluorine-free inverter air conditioning system of the prior art is in a high-temperature outdoor environment. As the outdoor temperature rises, the condensing pressure increases, the compression ratio increases, and the compressor exhaust temperature rises. Even shutdown protection, the maximum speed of the inverter compressor cannot be fully utilized, and the cooling capacity is reduced; in an ultra-low temperature environment, the same heating capacity will be greatly reduced, and the heat load required by the user will increase greatly, which cannot meet the heat demand of the user.

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