After the main components of the lyophilization machine are processed, they should be leak-checked separately, obvious leaks and leaks should be removed, and the initial inspection of the components should be completed, but this is often not enough. It also requires careful and careful attention during assembly and assembly. Leak detection, found that the problem was eliminated in a timely manner, leaving no hidden trouble. In the process of assembly and debugging of the whole machine, it is inevitable that some unimaginable problems will be exposed. This article summarizes from practice, the use of double vacuum leak detection method is an effective method, easy to get twice the result with half the effort.
The increase in pressure at this time is:. Hefei, Hefei University of Technology Press, 2002.4045. Jin Sumin, Refrigeration Technology and Its Application. Beijing, Mechanical Industry Press, 1999.5, 260. Zhou Yongan, control method of freeze dryer. Vacuum and low temperature, 1998.9, 179180.
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