Double-evaporator fresh air dehumidification unit

Abstract

The invention discloses a double-evaporator fresh air dehumidification unit. The unit comprises a primary system, a secondary system, an indoor unit shell and an outdoor unit shell. The primary systemcomprises a first compressor, a first condenser, a second condenser and a first evaporator, the first condenser is connected with a first confluence branch pipe through a first electronic expansion valve, and the second condenser is connected with a second confluence branch pipe through a second electronic expansion valve; and the secondary system comprises a second compressor, a third condenserand a second evaporator. The double-evaporator fresh air dehumidification unit is high in concentration degree, small in floor area, convenient to install and better in engineering adaptability. The energy-saving technologies including condensate exhaust heat recovery, condensate reheating and the like are adopted, energy consumption is reduced, and the energy efficiency is improved. A constant frequency system and a variable frequency system are combined for use, the constant frequency system serves as the primary system and is used for mainly treating the sensible heat portion of the air, the variable frequency system serves as the secondary system and is responsible for treating the latent heat portion of the air, and therefore, temperature and humidity independent control is really achieved.

Description

technical field [0001] The present invention relates to the technical field of air conditioning equipment, and more specifically relates to a fresh air dehumidification unit with double evaporators. Background technique [0002] With the development of society and the improvement of people's living standards, more and more people begin to pay attention to the improvement of the quality of life. Fresh air, as the vane of improving the quality of human life, has begun to attract attention. Therefore, optimizing the indoor living environment has gradually become a new round. Rigid demand. [0003] Clean and healthy fresh air can improve people's learning and working environment to a certain extent, improve learning and work efficiency, and can also improve people's quality of life and happiness index to a certain extent, so people's demand for fresh air is becoming more and more urgent. [0004] However, the fresh air system has only been promoted and applied in recent years. ...

AI Technical Summary

Problems solved by technology

[0004] However, the fresh air system has only been promoted and applied in recent years. For new buildings, the fresh air system is generally designed or directly installed. However, for some old buildings, the installation of the fresh air system becomes very difficult

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