目前,小氮肥厂均采用传统的压缩式制冷的方法获取低温,其电耗、油耗及维修费用均较高。本文介绍的利用合成氨生产过程中产生的低位热能进行氨吸收式制冷的方法可以取代传统的压缩式制冷,为小型氮肥厂节能降耗提供了一条可行的途径。 At present, small nitrogenous fertilizer plants all adopt the traditional compression refrigeration method to obtain the low temperature, and the power consumption, fuel consumption and maintenance costs are high. This paper introduces the method of ammonia absorption refrigeration using the low heat generated in the ammonia production process to replace the traditional compression refrigeration and provides a feasible approach for saving energy and reducing consumption of small nitrogenous fertilizer plants.