Fresh air handling unit with integrated functions of dehumidification and evaporative cooling and air treatment method of fresh air handling unit

Abstract

The invention discloses a fresh air handling unit with integrated functions of dehumidification and evaporative cooling, which comprises a first dehumidifying and cooling module, a constant-humidity cooling module, an evaporative cooling module, a liquor regenerating module, a heat source heat exchanger, a liquor regeneration circulating pump and a cold source heat exchanger. The first dehumidifying and cooling module is used for dehumidifying and cooling fresh air, the constant-humidity cooling module is used for realizing constant-humidity cooling for the fresh air, and the evaporative cooling module is used for realizing sufficient heat and moisture exchange of the fresh air and water. The invention additionally aims to disclose an air treatment method for the fresh air handling unit with the integrated functions of dehumidification and evaporative cooling. By the aid of the fresh air handling unit and the air treatment method, problems that performance coefficients of an existing unit in the prior art are low, the quality of indoor air is poor, noise is loud, a wind blowing feeling is strong, energy consumption of a fan is high and the like are solved. In addition, the fresh air handling unit and the air treatment method have the advantages that performance coefficients of the unit can be greatly increased, the fresh air handling unit and the air treatment method are widely applicable to high-temperature and high-humidity regions, excessive noise and wind blowing feeing can be avoided, energy consumption of a fan can be reduced, air can be sterilized, dust in the air can be removed, energy utilization rate can be improved, and the like.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a fresh air unit combining dehumidification and evaporative cooling and an air treatment method thereof. Background technique [0002] The energy problem has increasingly become the most critical and urgent issue in today's economy and society. The energy consumption of buildings in my country accounts for about 1 / 3 of the total energy consumption, and the energy consumption of air-conditioning accounts for more than 50% of the total energy consumption of buildings. Therefore, there is no doubt that air-conditioning can save energy It has become an unavoidable problem in our country's economy and society. [0003] Traditional air conditioners mostly use the air treatment method of combined temperature and humidity control. In order to reduce the air temperature below the dew point to achieve dehumidification of fresh air, it has to use low-temperature cold water (7°C) low...

AI Technical Summary

Problems solved by technology

However, in the vast areas of southern my country, especially in the eastern coastal areas, the outdoor air is hot and humid in summer, and the temperature difference between the dry and wet bulbs of the fresh air is very small, which makes the cooling effect of this air cooler unsatisfactory, the comfort level is low, and it must be operated with a large air volume. It leads to loud noise and strong blowing feeling, and significantly increases the energy consumption of the fan. At the same time, due to the lack of dehumidification treatment for the fresh air, the indoor air humidity is too high, which further affects the comfort of the hot and humid environment. Due to the enthalpy value of the design indoor air state point, the indoor heat load cannot be excluded and the indoor air state requirements cannot be met, making it unable to meet the air conditioning needs of the vast high-temperature and high-humidity areas in my country, and these vast areas are precisely the areas with developed economies and dense populations , the area with the highest demand for air conditioning in summer

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