Temperature and humidity independent control centralized air conditioning system

Abstract

The invention belongs to the field of heating and ventilation, and discloses a temperature and humidity independent control centralized air conditioning system. The temperature and humidity independent control centralized air conditioning system involves a first cold and heat source main machine, a second cold and heat source main machine, hydraulic modules, a tail end, and a ventilation unit, wherein each hydraulic module comprises a primary side pipeline, a heat exchanger and a secondary side pipeline, the primary side pipelines are connected with the first cold and heat source main machinethrough pipelines, and heat exchange is carried out on water in the primary side pipelines and water in the secondary side pipelines through the heat exchangers; the tail end communicates with the secondary side pipelines; and the ventilation unit comprises first heat pipe sections and cold and hot water coil pipes sequentially arranged in the air supply direction, and the cold and hot water coilpipes are connected with the second cold and heat source main machine through pipelines. According to the temperature and humidity independent control centralized air conditioning system, a fresh aircold and heat source and a radiation cold and heat source are independently configured so that the outlet water temperature can be independently adjusted according to different water temperature requirements of a ventilation system and a radiation system, and the comprehensive optimization of functional requirements and energy efficiency is guaranteed; and in addition, in the ventilation unit, fresh air is pre-cooled through heat pipe cooling sections, then 5 DEG C chilled water is adopted for cooling and dehumidifying the fresh air, and the dehumidifying effect under the adverse condition ofthe high humidity can be guaranteed.

Description

technical field [0001] The invention relates to the field of heating and ventilation, in particular to a centralized air-conditioning system with separate temperature and humidity control. Background technique [0002] With the improvement of the pursuit of quality of life, users have put forward higher requirements for living comfort, and the "three constants" (constant temperature, constant humidity, constant oxygen) system with temperature and humidity separate control as the technical core has gradually become the standard of high-tech housing configuration. [0003] At present, the residential air-conditioning system with separate temperature and humidity control generally uses centralized cold and heat sources to generate chilled water in summer to supply the radiant terminal and the centralized fresh air unit. The radiant unit bears the main indoor sensible heat load, and the fresh air unit bears the indoor latent heat load and a small part of sensible heat. load. ...

AI Technical Summary

Problems solved by technology

[0004] However, the load bearing capacity of the radiation system is low. Under heavy load conditions, the output is difficult to meet the demand, and the response speed to the instantaneous load is slow.

The centralized cold source produces 7°C chilled water, which is affected by comprehensive factors such as pipeline temperature rise, hydraulic imbalance, and extreme hot and humid outdoor conditions, resulting in insufficient dehumidification capacity and the risk of condensation at the end, which seriously affects the operation of the entire system

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