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低温送风空调系统引进新型冰蓄冷设备,采用正丁烷作为制冷剂,制冷剂与水直接接触,换热更强烈且稳定。为了研究该系统相应损因素条件下的节能薄弱环节,实现系统性能优化,基于该系统及各表冷器分析模型,分析了热湿比、新风比、送风温差等损因素对系统效率和各表冷器损率的影响。结果表明:当热湿比变化时,处理二次混风的表冷器损率随之呈正比变化,其他表冷器损率及系统效率随之呈反比变化;当新风比变化时,处理新风的两级表冷器损率随之呈正比变化,其他表冷器损率及系统效率随之呈反比变化;当送风温差变化时,处理一次回风的表冷器损率随之呈正比变化,其他表冷器损率及系统效率随之呈反比变化。
Cold air supply and air-conditioning system to introduce new ice storage equipment, the use of n-butane as a refrigerant, refrigerant and water direct contact, heat exchange more intense and stable. In order to study the energy-saving weakness under the condition of corresponding damage factors of the system and to optimize the system performance, based on the analysis model of the system and each surface cooler, the effects of the factors such as the heat and moisture ratio, the fresh air ratio and the supply air temperature difference on the system efficiency and Effect of surface cooler loss rate. The results show that when the ratio of heat and moisture is changed, the loss rate of surface coolers treated with secondary mixed air changes in a proportional manner, and the rates of other surface coolers and the system efficiencies change inversely with each other. When the fresh air ratio changes, The rate of cooler losses in the two stages is directly proportional to the change, and the other cooler rates and system efficiencies change inversely. When the temperature difference of the blast air changes, Changes, other cooler rates and system efficiency vary inversely.