A cooling and heating pretreatment phase change energy storage fresh air system

Abstract

The invention discloses a cold and heat pretreatment phase change energy storage fresh air system, comprising an energy storage module, a water circulation module, an automatic control module, and a monitoring module; Composed of an array structure and a fan; the water circulation module includes a closed cooling tower, a solar collector plate, a circulating water pump, a circulation pipeline, and a three-way valve group; the monitoring module is used to monitor the outlet water temperature of the cooling tower and the outlet water temperature of the solar collector panel , the temperature of the phase change material in the phase change energy storage tube; the monitoring device controls the on-off of the cooling tower, the solar collector plate and the energy storage module according to the monitored temperature; To achieve the effect of energy saving, the needs of fresh air precooling and preheating in winter and summer are realized.

Description

technical field [0001] The invention belongs to the technical field of air-conditioning fresh air systems, in particular to a fresh air system for cooling and heating pretreatment phase change energy storage. Background technique [0002] The fresh air system uses the fresh air unit to send outdoor air into the room, forming a fresh air flow field indoors, so as to meet the needs of indoor fresh air ventilation and improve indoor air quality. At present, for most air-conditioned buildings in China, the fresh air load has accounted for 20% to 30% of the total HVAC load. Therefore, how to make the fresh air system have the characteristics of building energy saving and realize the effective use of renewable energy is crucial for building fresh air systems. development is of great significance. [0003] Phase change materials are materials with energy storage functions. Among them, organic phase change materials have the advantages of high energy storage density, large storage ...

AI Technical Summary

Problems solved by technology

[0004] After searching the existing technology, it is found that Chinese patent document number CN 109458654 A records a phase-change energy storage type solar fresh air heating system, which combines the solar fresh air heating system and the thermal storage system to provide heating and water for buildings demand, but the system cannot be applied to the working condition of fresh air precooling in summer, which limits the energy-saving effect, and the heat exchange efficiency of the combination of phase change energy storage and fresh air is low, and the expected implementation effect is poor; patent document number CN 102914010 A records A high-efficiency heat exchange system for fresh air with phase change energy storage based on solar energy is developed, which integrates solar collector panels, phase change energy storage, heat pipes and fresh air into one system to increase the temperature of the air supply in winter, and the use of heat pipes can improve the fresh air and fresh air. The heat exchange efficiency between phase change materials, but this system is also not suitable for summer fresh air pre-cooling conditions, and the investment is relatively high

Images