how can you create good vacuum on the fresh water
how can you create good vacuum on the fresh water (FW) distiller ?
请帮忙给出正确答案和分析,谢谢!
参考解答
正确答案:First of all ,to create good vacuum on the FW distiller .i must make sure that the internal chamber is sealed against possible entrance of the air during operation .secondly ,the air ejector and ejector pump should be in good condition .thirdly ,some revelant valves parking should be sealed against air leakage ,lastly ,the unit should be free from scales (水垢) 。both on its condenser and heater .
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