Air source heat supply system suitable for high-humidity areas and running method of air source heat supply system

Abstract

The invention discloses an air source heat supply system suitable for high-humidity areas and a running method of the air source heat supply system in the technical field of high-humidity area air source heat supply. A modular power unit comprises an auxiliary heating and heat loss balancing unit and a transmission and distribution unit. A closed pressure bearing water tank is arranged in the auxiliary heating and heat loss balancing unit and has the function of increasing the system water volume and reducing water supply temperature fluctuation during air source defrosting in the system, through the self-control means, valve switchover, flow distribution, real-time outdoor weather condition change tracking and analysis processing of collection data of various sensors of the system are achieved, a redundancy main machine in the daytime favorable weather time period is utilized for supplementing heat into the water tank, the running unit number of air source units is reduced, the running time of the air source units is shortened, system running power consumption is reduced, the system is simple and reliable, and increased investment is little; and the system is matched with the whole running strategy, electric power consumed by a high-humidity area air source heat pump in the defrosting process can be reduced, and the running cost is saved.

Description

technical field [0001] The invention relates to the technical field of air source heating in high-humidity areas, in particular to an air-source heating system suitable for high-humidity areas and an operation method thereof. Background technique [0002] Air source heat pumps take into account the advantages of cooling and heating, small footprint, energy saving, environmental protection, convenience, etc., and are more and more favored. [0003] However, the problem of frost formation is the main factor affecting the normal heating of the heat pump unit in winter, especially in the cold northern region and the south with high humidity and cold, the unit can hardly operate normally in winter, which seriously restricts the development of air source heat pump. Therefore, improving defrosting technology is a necessary condition to promote the development of air source heat pumps, and it is also the cornerstone of developing the air source heat pump market. There have been a l...

AI Technical Summary

Problems solved by technology

[0004] Although the defrosting effect of the four-way valve reverse defrosting is better, when this technology is used for defrosting, the compressor of the air source heat pump stops heating, and the reverse cooling starts to run, so the heat supply of the system is obviously affected

According to relevant tests, the heat loss caused by using this technology for defrosting accounts for about 10.2% of the total energy loss of air source heat pumps

At the same time, the defrosting technology is also easy to cause "liquid shock", which is very unfavorable to the normal use of the compressor

[0005] At the same time, the defrosting technology is also easy to cause "liquid shock", which is very unfavorable to the normal use of the compressor

The hot air bypass defrosting method does not need to absorb indoor heat, but can also provide a small amount of heat at the same time, avoiding the phenomenon of blowing cold wind during defrosting, and the temperature of the water supply drops slowly, but the defrosting time is too long so that the indoor temperature is still 10 ℃ drop, for this reason, we propose an air source heating system and its operation method suitable for high humidity areas

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