Isothermal dehumidifying air conditioner

Abstract

The present invention discloses an isothermal dehumidification air conditioner. It is characterized by that the compressor is connected with outdoor heat exchanger and second indoor heat exchanger by means of four-way reversal valve, one end of said four-way reversal valve connected with second indoor heat exchanger is respectively connected with first heat exchanger and throttle capillary tube by means of electromagnetic valve, the first indoor heat exchanger, second indoor heat exchanger and another end of the throttle capillary tube are connected with another end of outdoor heat exchanger by means of electromagnetic valve. Said air conditioner can utilize the opening and closing of four-way reversal valve, electromagnetic throttle valve and electromagnetic valve to control flow line of refrigerant so as to make refrigerant of internal circulation in air conditioner be successively passed through two indoor heat exchangers to implement isothermal dehumidification function of air conditioner.

Description

technical field [0001] The invention relates to an air conditioner, in particular to an air conditioner with cooling / heating function and isothermal dehumidification function and its operating method. Background technique [0002] Generally speaking, an air conditioner is a cooling / heating device that keeps the indoor temperature at the temperature required by the user. The refrigerant circulating in the refrigeration system exchanges heat with the air flowing in the room to achieve indoor cooling or heating. Provide fresh and comfortable air environment. The refrigeration system of an air conditioner is mainly composed of a heat exchanger as an evaporator or condenser, a compressor, and a throttling device. [0003] In summer, the refrigerant in the refrigeration system performs a refrigeration cycle in the order of evaporation→compression→condensation→expansion to realize the cooling operation of the air conditioner; in winter, through the switching of the four-way revers...

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Problems solved by technology

[0032] (1) The refrigerant goes through two cycles, which disperses the amount of refrigerant, and a part of the refrigerant returns directly to the compressor without undergoing a refrigeration phase change, reducing the efficiency of the compressor

[0033] (2) One way of refrigerant has to go through throttling and expansion, and the flow resistance is large, while the flow resistance of the other way is small, which will make the distribution of refrigerant uneven and reduce the dehumidification capacity

Moreover, the pressure of the refrigerant on the side of the indoor heat exchanger 110 is high, and the pressure on the side of the indoor heat exchanger 100 is low, which may cause backflow of the refrigerant and make the system unstable.

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