Phase change cold accumulation fresh air and air source heat pump coupling system and operation method thereof

Abstract

The invention provides a phase change cold accumulation fresh air and air source heat pump coupling system. The phase change cold accumulation fresh air and air source heat pump coupling system comprises a fresh air machine, a first phase change cold accumulation unit, a second phase change cold accumulation unit, a fan coil and an air source heat pump. The first phase change cold accumulation unit and the second phase change cold accumulation unit are arranged on a fresh air pipeline in parallel. A first fresh air valve and a second fresh air valve which are used for controlling the fresh airvolume of the first phase change cold accumulation unit and the fresh air volume of the second phase change cold accumulation unit are installed on the fresh air pipeline. A first water pump, a firstchilled water main valve, a first water valve, a second water valve, a third water valve and a fourth water valve are installed on a chilled water drainage pipe. The whole system is flexible and mobile, and conversion response is fast under the fresh air requirements of ordinary and epidemic situations. Meanwhile, the invention provides an operation method of the phase change cold accumulation fresh air and air source heat pump coupling system so as to meet the multiple requirements of normalized epidemic prevention, building energy conservation, system economy and the like, the great energyconservation and economy potential is achieved while the safe and comfortable indoor environment is created, and wide application prospects are achieved in hot and humid climate areas.

Description

technical field [0001] The invention belongs to the technical field of fresh air systems, and in particular relates to a phase change cold storage fresh air and air source heat pump coupling system and an operating method thereof. Background technique [0002] The new type of coronavirus pneumonia is a new acute respiratory infectious disease, which has become a major global public health event. The life safety and health of people around the world have been seriously threatened, and the world economy has been severely impacted. Regarding the transmission route of the new coronavirus, the "New Coronavirus Pneumonia Diagnosis and Treatment Program (Trial Eighth Edition)" clearly states that there is a possibility of aerosol transmission when exposed to high-concentration aerosols for a long time in a relatively closed environment. Therefore, diluting the virus by increasing the introduction of outdoor fresh air is an important means to reduce the possibility of virus transmis...

AI Technical Summary

Problems solved by technology

However, under the operation mode of combining epidemic prevention and control, the fresh air volume during the epidemic will increase significantly compared with the usual sanitary fresh air volume, which will also greatly increase the energy consumption of ventilation and air conditioning and the capacity of main equipment, making the epidemic prevention normalized. Under the circumstances, the operating cost of the safe fresh air system is relatively high, which is not conducive to popularization and use

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