氨分离器毕业论文

Ammonia industry is the foundation of the chemical industry. Its output ranked the top of various chemical products. Ammonia is important ammonia nitrogen fertilizer industry is the basis of one of the chemical industry. , With the exception of lime nitrogen, while the rest are first ammonia nitrogen fertilizer, and then processed into various ammonium or urea. Section in the synthesis of ammonia production process is the last one, will be sent to work in front of the pass ammonia gas, used as industrial raw materials for use after the product processes. Synthesis gas is ammonia production is the final steps in the production process is the most important part of the yield of the synthetic fertilizers have a direct impact on the entire production. The graduation project is the subject of Section 80,000 tons / year of ammonia plant in the system design. Main contain ammonia synthesis process: ammonia synthesis of ammonia in the separation of the Air gas, emptying the inert gas, pressurized and recycling. Ammonia synthesis process, due to high pressure, low rate of synthetic ammonia, and ammonia easy condensate separation. Pressure is generally in the range 20-32 Mpa. The main content of the design process, including synthetic material balance and heat balance, and the main equipment of computing (1) reactor technology calculation: the reactor materials, heat calculation and calculation of the tower reaction heat. (2) of water for calculation: ranked-choice leaching onto the cooler. And water-into-and out-of materials to account for and calculating the hot water and bring out into the heat. (3) of ammonia separator calculation: the separation-of-Jin materials, materials for a material balance. Ammonia from the heat balance of income and expenditure for heat. (4) exchange of cold calculation: the election out of the heat exchanger, taking the heat-, air-conditioned walk shell. Intake of materials and for materials to account for, and a gas into the tropical heat balance. (5) of ammonia with cold calculation: the election of ammonia vertical air-conditioning, hot walk of the way, taking liquid ammonia steam shell. Jin for the materials and materials for the material balance of ammonia and out into the cold for the heat to account for. Key words: ammonia, synthetic tower, cold ammonia, ammonia separator

因为液体是不可压缩的，所有制冷系统中压缩机是不能吸入液体的。

为了防止压缩机吸入液体制冷剂，所以设置了气液分离器。

原理请看附图

氨液分离器的结构如图 4-39所示。它是一个由钢板制成的筒体，在筒体上设有氨气入口、氨气出口、安全阀、液面指示器、进液管、放油阀、液氨出口、集油包和平衡管等，氨液分离器用于重力供液系统，其作用是将蒸发器或冷却管内所蒸发的气体和氨液分离掉，避免压缩机缩短行程，以保证蒸发器的供液量。

氨液从进液管进入筒内，经集油包滤除润滑油再从氨液出口进入蒸发器，而经蒸发器蒸发的湿蒸汽再从分离器的进气管进入筒内进行分离，使蒸汽中的液滴落到底部，氨气由氨气出口流回制冷压缩机，而氨液经氨液出口重新流入蒸发器。

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图4-39 氨液分离器结构

1.氨气入口 2.氨气出口 3.安全阀口4.液面指示器 5.进液口 6.放油阀7.液氨出口 8.平衡管 9.集油包

氨液分离器有立式与卧式两种，其工作原理基本相同。