Ammonia ice machine post JZKA315 refrigeration unit is the role of the synthesis of low temperature and low pressure ammonia gas, refining the synthesis refining ammonia cooler for cooling by compressed into a liquid ammonia circulating machine, circulating use, play a decisive role in the production.

But spare a main oil pump has been a problem plaguing the workshop management, emergency start oil pump, oil pump is not over, not set up the appropriate pressure, so that the host can not start. The workshop staff has been using a standby pump first open, always run to the oil pressure up, to start the host, sometimes running several classes still did not have the pressure, if the ice machine running once the problem and spare ice machine cannot be opened in time, will cause the ammonia gas pressure will directly affect ammonia synthesis technology, a great impact on production.

In order to solve this problem, the workshop management after careful research, analysis, to determine the reasons for this phenomenon is due to the lubricating oil dissolved ammonia, the ammonia volatilization of oil pump to start running, gas ammonia, ammonia gas in the pump row do not go out, make the pump evacuated without looking up, this view has been a consensus, decided to cut a hole in the pump outlet diameter of 25 fine filtering net, welded with a DN20 exhaust valve, the oil pump to the exhaust valve is opened, the ammonia gas to be volatilized removed, lubricating oil is exhausted, the exhaust valve is closed, the pressure up, the host can be opened.

The pump after the improvement, after testing, oil pressure soon meet the requirements, thus greatly saving pump run time, to ensure the stable operation of production.