Design of air conditioning cold and heat source system for alarge animal laboratory in hot summer and cold winter zone

On the basis of analysing the heat and humidity load characteristics of a large animal laboratory in hot summer and cold winter zone under typical winter and summer operation conditions, this paper proposes a method of combining the magnetic suspension water chiller for large temperature difference cooling with the heat recovery measures such as four-pipe heat pump and heat pipe heat recovery unit to realize the multi cold sources heat and humidity treatment and precise temperature and humidity control of outdoor air conditioning in animal laboratories. The operation energy consumption and cost of the air conditioning system for large animal laboratories in hot summer and cold winter zone are counted, and optimization measures for energy conservation and carbon reduction during the operation phase are proposed.