A cascade composite dehumidification system

Abstract

The invention relates to a cascade combined type dehumidification system which comprises a fresh air handling unit arranged on the mechanical floor of a building or on a roof and unit dehumidifiers disposed in a scattered manner in rooms of various users on various floors. The fresh air handling unit is used for the centralized processing of fresh air and the primary dehumidification of the fresh air, and provides the fresh air for the various users through a fresh air vertical shaft of the building. The unit dehumidifiers are used for depth dehumidification of air in the rooms of the various users. The cascade combined type dehumidification system has the advantages of being simple in structure, flexible in control, low in cost and high in energy efficiency ratio. The cascade combined type dehumidification system is applied to an apartment building, an office building or a commercial building, by means of controlling the fresh air handling unit and the unit dehumidifiers correspondingly, the aim of cascade dehumidification of the fresh air and room air can be achieved, in addition, the installed capacity of the fresh air handling unit can be reduced, the reversibility of thermodynamic systems of the fresh air handling unit and the unit dehumidifiers is improved, and therefore the aim of energy conservation is achieved.

Description

technical field [0001] The invention relates to a building energy-saving and air-conditioning system, in particular to a cascaded composite dehumidification system for centralized treatment of fresh air and separate treatment of indoor moisture loads. Background technique [0002] With the improvement of people's requirements for comfort, the air-conditioning system with independent temperature and humidity control has attracted more and more attention and has been widely used. The temperature and humidity independent control system adopts independent control of temperature and humidity, so that the two subsystems complement each other, so as to create a comfortable environment with constant temperature, constant humidity, constant oxygen, quietness and hygiene for the room. In the current temperature and humidity independent control system, the temperature control system generally uses products such as capillary tubes, chilled beams, radiant panels, and dry fan coil units, ...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of large installed capacity, high energy consumption and inflexible control of the traditional fresh air system in the prior art, the present invention provides a cascaded composite dehumidification system, which includes The fresh air unit and the unit dehumidifiers distributed in each floor and each user are used for the centralized treatment of fresh air and the primary dehumidification of fresh air, and provide fresh air for each user through the fresh air shaft of the building; the unit dehumidifier For the deep dehumidification of indoor air of each user

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