Two-stage precooling dehumidification device and method

Abstract

The invention discloses a two-stage precooling dehumidification device and method, which break through a traditional dehumidification system form. The two-stage pre-cooling dehumidification device comprises an indirect evaporative circular tube surface heat exchanger, a heat pipe heat exchanger, a refrigeration dehumidification system and a condensed water collecting device, all of which sequentially form a primary fresh air precooling section, a secondary precooling section, a dehumidification section and a coolant recovery section. According to the two-stage precooling dehumidification device and method, cooling capacity of high-graded exhaust air and condensed water is sufficiently used for precooling fresh air, so that the cooling load of an evaporator of a dehumidification unit is reduced, and thus the unit input power can be less when the unit achieves the same dehumidification workload. Therefore, economic and better selection can be realized on accessory model selection of the unit.

Description

technical field [0001] The invention belongs to the technical field of air conditioners, and relates to a two-stage precooling dehumidification unit and a dehumidification method. Background technique [0002] With the continuous improvement of people's living standards, people pay more and more attention to indoor air quality, which is manifested in higher and higher requirements for suitable air temperature and humidity, especially in the south. There is a strong sense of discomfort. However, most of the existing dehumidification systems not only cannot meet people's needs, but also consume a lot of energy. For example, most of the dehumidification systems in China today adopt the form of fresh air. The unit under this design has the characteristics of small air volume and large enthalpy difference. Its structure is complex and bulky. The application value in the market is not high, and the energy-saving effect is not obvious. , and condensed water continues to be genera...

AI Technical Summary

Problems solved by technology

However, most of the existing dehumidification systems not only cannot meet people's needs, but also consume a lot of energy.

For example, most of the dehumidification systems in China today adopt the form of fresh air. The unit under this design has the characteristics of small air volume and large enthalpy difference. Its structure is complex and bulky. The application value in the market is not high, and the energy-saving effect is not obvious. , and condensed water continues to be generated during the fresh air treatment process, which is not only easy to breed bacteria, but also affects the appearance

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