Ventilation and tail end jet flow type temperature and humidity control system and control method for underground building

Abstract

The invention provides a ventilation and tail end jet flow type temperature and humidity control system and control method for an underground building. The control system comprises a ventilating centralized dehumidification device, a tail end jet flow dehumidification device, an air exhaust device and a system controller, wherein the ventilating centralized dehumidification device is used for centralized processing of ventilating heat and humidity loads, and the tail end jet flow dehumidification device is used for processing of indoor heat and humidity loads; the air exhaust device is used for carrying out air exhaust tasks of underground rooms; and the system controller is connected with the ventilating centralized dehumidification device, the tail end jet flow dehumidification device and the air exhaust device, manages the united operation of all the devices in a unified mode, and effectively controls the air temperature and humidity in all the underground rooms. According to the control system, aiming at the category characteristics and dynamic rules of the heat and humidity loads in the underground building, the ventilating centralized dehumidification device and the tail endjet flow dehumidification device are used in a combined mode, two dehumidification systems with different properties are adopted to reasonably share the ventilating load and the internal load of the underground building, and the energy efficiency is higher compared with that of existing temperature and humidity control systems.

Description

technical field [0001] The invention relates to the field of temperature and humidity control of underground space environment, in particular to a fresh air plus end jet type temperature and humidity control system and control method for underground buildings. Background technique [0002] The heat and humidity loads of underground buildings can be classified into two categories, namely fresh air loads and internal loads. The fresh air load comes from the outside. Due to the high temperature and high humidity of the fresh air, if it is not properly handled after it is introduced into the underground building, it will cause condensation or even mold on the wall, which will affect the activities of personnel and material storage in the underground building. The internal load of underground buildings is caused by the environment characteristics of low temperature and high humidity. The heat load mainly comes from the heat transfer loss of the low-temperature wall surface, and t...

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Problems solved by technology

[0004] In addition, if the air-conditioning system commonly used in ground buildings is applied to the underground space, a large number of air duct systems need to be arranged, occupying the height of the underground space, the amount of air duct processing and installation is large, the project investment cost is high, and the construction period is long, which is not conducive to popularization and application

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