Hydrogenation plant in Jinzhou Petrochemical Company vigorously strengthen the comprehensive management of water resources and optimize the use of technology to achieve through the measures to cool the cooling water with softened water recycling, annual benefit of more than 230,000 yuan. It is understood that heat pump seal cooling with demineralized water recovery due to the relatively small amount of water and difficult to solve the recovery after the way, has been the bottleneck of energy-saving work. From the beginning of this year, the workshop organization of technical personnel through field research and technical feasibility studies, the selection of the best design, the device does not stop working circumstances, they buried the PVC pipe into the hot water pump drain drains 300cm to 500cm deep, Received four hot oil pump 8 drains, the drainage directly into the underground 1 cubic meter of the reservoir. A pipeline pump is installed to transport the demineralized water stored in the pool to the demineralized water tank and then to the process water injection point of the production plant to complete the revamping of the hot oil pump demineralized water. After technical testing, the quality and amount of demineralized water recovered completely meet and can meet the needs of the production process, the economic and social benefits are significant.