Temperature-and-humidity-independent-adjustment household air conditioner

Abstract

The invention discloses a temperature-and-humidity-independent-adjustment household air conditioner. The temperature-and-humidity-independent-adjustment household air conditioner comprises an air treating part and a refrigerating / heating system part. The air treating part is composed of a second heat exchanger, a third heat exchanger and a draught fan in a sequentially-connected mode; the refrigerating / heating system comprises a double suction pressure compressor, a four-way valve, a first heat exchanger, a first one-way valve, a second one-way valve, a liquid storing device, a filter, an economic device, a first electronic expansion valve, a second electronic expansion valve, a third one-way valve, a fourth one-way valve, a fifth one-way valve, a first electromagnetic valve, a second electromagnetic valve, a sixth one-way valve, a third electromagnetic valve, a second heat exchanger, a third heat exchanger and a gas-liquid separator. The problems that as sensible heat loads and latent heat loads are borne by a same evaporator when a household air conditioner refrigerates in summer, the temperature and humidity of the air conditioner can not be independently adjusted, and the energy efficiency ratio is difficultly increased are solved, and the problem that under the low temperature working condition in winter, the heating capacity of the air conditioner is low is solved.

Description

technical field [0001] The invention relates to a household air conditioner which adopts double suction pressure to realize independent adjustment of room temperature and humidity in summer, and belongs to the technical field of refrigeration and air conditioning system design and manufacture. Background technique [0002] With the development of the economy and the improvement of living standards, household air conditioners have become a necessity to ensure people's quality of life and work efficiency, and have been widely used. In order to meet the requirements of personnel for indoor air temperature and humidity, household air conditioners currently mainly adopt the method of freezing, cooling and dehumidification, and the same evaporator bears the indoor sensible heat load and latent heat load. However, this mode brings many disadvantages: 1) Conventional household air conditioners can generally only control the indoor temperature, but cannot independently adjust the h...

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Problems solved by technology

[0004] Technical problem: The purpose of the present invention is to solve the problem that the same evaporator bears the sensible heat load and the latent heat load under the summer cooling condition of the household air conditioner, and the air conditioner needs to operate at a lower evaporation temperature due to consideration of the dehumidification requirement, resulting in the temperature and humidity of the air conditioner being unable to In order to solve the problems of independent adjustment and difficulty in improving the energy efficiency ratio and the low heating capacity of the air conditioner under low temperature conditions in winter, a household air conditioner that can realize independent adjustment of temperature and humidity is proposed.

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