The dependent development of 350 kW DL(Double-Lift) LiBr absorption refrigerator was introduced and experiments were done on the refrigerator in four kinds of variable conditions,which were respectively change in temperature of chilled water (outlet),change in temperature of cooling water (inlet),change in temperature of heat water(inlet) and change in flow rate of heat water.The experimental results show that,in the design value variation range of about 20％,with the increase of the chilled water outlet temperature and inlet temperature of hot water,and the increase of hot water flow,and lowering inlet temperature of cooling water,refrigerating capacity and coefficient of performance (COP) is improved.%介绍了自主研制的350 kW两级溴化锂吸收式制冷机,并对该机组进行了4种变工况条件下的性能测试.分别通过改变冷媒水出口温度,冷却水进口温度,热水进口温度和热水流量来测试该制冷设备在以上4种常见变工况的外界条件下,其制冷量和热力系数(COP)的变化趋势.该实验结果显示,在设计值上下20％的变化范围内,随着冷媒水出口温度和热水进口温度的升高,热水流量的加大以及冷却水进口温度的降低,机组制冷量和热力系数(COP)均会得到提高.
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