流体机械

2015, v.43;No.518(08) 83-86

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新型热驱动气压泵及其性能分析
New Type of Thermal Driving Pneumatic Pump and Performance Analysis

吴腾马;刘道平;
WU Teng-ma;LIU Dao-ping;University of Shanghai for Science Technology;

摘要(Abstract):

采用热驱动气压泵代替溶液泵完成对制冷系统内浓溶液从低压到高压的输送过程,分析了热驱动气压泵4个主要工作过程的工作原理,并在无回热的情况下,气压缸体积2.5L,单次输送液体2L,以发生温度100℃,冷凝温度36℃,吸收温度36℃,蒸发温度0℃对热驱动气压泵代替溶液泵完成液体增压输送进行分析,得出整个制冷系统的COP为0.48的结论。最后分析了单次放入气压缸内的浓氨水体积与热驱动气压泵效率之间的关系,得出单次放入气压缸内的浓氨水体积越大,获得单位质量氨在气压缸内的受热量越少的结论。
To substitute thermal driving pneumatic pump for solution pump can make the concentrated solution transfer from low pressure to high pressure. Analyze the operating principles of thermal driving pneumatic pump in its four main working processes.Besides,the paper also analyzes the liquid supercharge transportation of substituting thermal driving pneumatic pump for solution pump without backheating when the volume of pneumatic cylinder is 2. 5L,transportation liquid per time 2L,generating temperature 100℃,condensing temperature 36℃,absorption temperature 36℃,and evaporation temperature 0℃. It draws a conclusion that the COP of the total refrigerating system is 0. 48. In the end,the paper analyzes the relation between the volume of stronger ammonia water per time and the efficiency of thermal driving pneumatic pump. It draws the conclusion that the larger the volume of stronger ammonia water per time is,the less the quantity of heat per unit mass ammonia in pneumatic cylinder gets.

关键词(KeyWords): 吸收式制冷循环;热驱动气压泵;液体增压;低品位热能
absorption refrigeration cycle;thermal driving pneumatic pump;liquid supercharge;low-grade heat energy

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基金项目(Foundation): 上海市教育委员会科研创新项目资助项目(13ZZ117)

作者(Author): 吴腾马;刘道平;
WU Teng-ma;LIU Dao-ping;University of Shanghai for Science Technology;

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