屏蔽式氨泵以其流量和扬程的选择范围较大,特别是制冷剂不外泄的优点而日益受到用户的欢迎。但与齿轮氨泵相比,它又极易产生不泵液现象而使用户感到头痛。本文述及的不是由于氨泵与低压循环贮液桶之间的安装高度不合要求,产生的静液柱过小引起的氨泵不泵液等设计、安装方面产生的故障,而是在设计、安装正确的情况下,氨泵在操作运行中出现的不泵液故障。 Shielded ammonia pump its flow and head of the larger range of options, especially the advantages of refrigerant is not compromised and increasingly welcomed by users. However, compared with gear ammonia pump, it is also very easy to produce non-pump fluid and make the user feel a headache. This article is not due to the ammonia pump and low-pressure circulating storage tank height between the unacceptable, resulting in small hydrostatic liquid pump caused by ammonia pump design and installation of the pump failure, but in the design, Installation is correct, the ammonia pump in the operation of the pump does not appear in the fluid failure.