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Daqing refining and chemical circulation uses vacuum pump working fluid
The acetonitrile workshop of Daqing Refining and Chemical Polymer Plant No.
1 recently completed the vacuum pump working fluid circulation transformation project, ending the 14-year history
of direct working fluid.
The working liquid used in the vacuum pump of the acetonitrile workshop is the cooled steam condensate, and the vacuum pump has 0.
5~0.
7 tons of cyanide-containing sewage per hour directly discharged to the downstream biochemical workshop incinerator for incineration, which increases the consumption
of gas fuel.
At the beginning of April, the acetonitrile workshop carried out technical research on the circulation of vacuum pump working fluid, and realized the circulation of
vacuum pump working fluid.
Two months of operation of the device show that the recycling of the working fluid of the vacuum pump has no impact on the output and quality of the product, the qualification rate of the distillation outlet of the device is 100%, and the wastewater can be reduced by 12~15 tons per day, and a self-priming pump
can be stopped.
(Wang Xiaowei)
