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针对热电冷三联产系统中溴冷机排出的大量废热,提出了2种回收制冷废热的方案,并对其一次能耗综合热利用率和综合效率进行了计算与分析.结果表明:2种方案的能源利用率均得到了有效提高,在供冷/供热蒸汽量比较小时,系统相对简单的方案1优于方案2;当供冷/供热蒸汽量比增大时,方案1的一次能耗综合热利用率和综合效率变化极小,而采用热泵的方案2的一次能耗综合热利用率和综合效率均先提高后降低,且在供冷/供热蒸汽量比为3.3 k时达到最大值.
According to the large amount of waste heat released by the bromine cooler in the cogeneration system, two schemes for recovering the waste heat from the cooling system are proposed, and the comprehensive utilization rate and comprehensive efficiency of the primary energy consumption are calculated and analyzed.The results show that: The energy efficiency of the scheme has been effectively improved. When the amount of cooling / heating steam is relatively small, the system with a relatively simple system 1 is superior to scheme 2; when the ratio of cooling / heating steam is increased, The comprehensive utilization of heat energy and comprehensive efficiency of energy consumption change very little, while the comprehensive heat utilization efficiency and comprehensive efficiency of the first energy consumption scheme 2 using heat pump scheme both increase and then decrease, and when the cooling / heating steam ratio is 3.3 k Reaches the maximum value.