Energy saving system and method for accurately controlling temperature and humidity of fresh air, and air conditioner

Abstract

The invention relates to an energy saving system for accurately controlling temperature and humidity of fresh air. The energy saving system comprises a compressor, a four-way reversing valve, an outdoor heat exchanger, a first control valve, a flash evaporator, a second control valve and an indoor side heat exchanger, and also comprises a waste heat economizer which communicates with the indoor side heat exchanger, a humidifier which is arranged in the waste heat economizer, a fresh air tail end heat exchanger which communicates with the waste heat economizer and communicates with the outdoorheat exchanger, a third control valve of which one end communicates with the fresh air tail end heat exchanger and the other end communicates with a pipeline between the second control valve and the indoor side heat exchanger, and a temperature and humidity sensing system which is used for detecting the temperature and the humidity of the fresh air passing through the outdoor heat exchanger, the waste heat economizer and the fresh air tail end heat exchanger. According to the energy saving fresh air system for accurately controlling the temperature and the humidity provided by the invention, the temperature and the humidity are controlled accurately; the system energy efficiency is high; moreover, the effects of saving energy and protecting environment can be achieved; and the invention also provides a method for accurately controlling the temperature and the humidity of the fresh air, and an air conditioner.

Description

technical field [0001] The present invention relates to the technical field of air conditioning, in particular to an energy-saving system for accurately controlling the temperature and humidity of fresh air, an air conditioner with the energy-saving system for accurately controlling the temperature and humidity of fresh air, and an air conditioner using the energy-saving system for accurately controlling the temperature and humidity of fresh air A method for accurately controlling fresh air temperature and humidity in an energy-saving system. Background technique [0002] In industrial production, construction sites, workshops, warehouses, mines and certain equipment rooms, ventilation is required in accordance with corresponding standards. [0003] At present, the constant temperature and humidity fresh air fans on the market use the principle of air heat and humidity treatment to control humidity. The basic process includes heating, cooling, humidification, dehumidificatio...

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Problems solved by technology

[0003] At present, the constant temperature and humidity fresh air fans on the market use the principle of air heat and humidity treatment to control humidity. The basic process includes heating, cooling, humidification, dehumidification, and air mixing. The heating process is controlled by electric heating. Temperature, although the purpose of controlling temperature and humidity has been achieved, but the temperature and humidity control of the fresh air machine is not accurate, which reduces the energy efficiency of the system and causes waste of energy, which is not energy-saving and environmentally friendly.

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