Research On Of High Temperature Heat Pump Utilized In Waste Heat From Petrochemical Industry

Petroleum energy is currently one of the main energy sources for the world economy.Petrochemical enterprises will be the oil resources through refining and processing for the country to provide basic energy and raw materials,they play a pivotal role in the national economic and social development.Petrochemical enterprises are also large energy consumption,is the country to promote industrial structure optimization,energy saving,environmental protection and cleanliness of the key industries.In the process of petrochemical production,there are abundant waste heat resources,in which the recyclable rate of 80%.High-temperature heat pump technology is the direct recovery of low-grade industrial waste heat is converted to high-grade energy,and then back to other production processes for a breakthrough technology.In the current national call for energy-saving emission reduction in the context of increasing attention by the petrochemical enterprises.In this paper,through a typical petrochemical enterprises in the distribution of heat and heat utilization of the full investigation,and the amount of heat,distribution,temperature distribution analysis,so that we have high-temperature heat pump for petrochemical enterprises in the application of a clear understanding.As the domestic petrochemical enterprises in the production process has similarity,so this article for the domestic refining enterprises waste heat research and the use of high-temperature heat pump technology will be of some help.In this paper,the heat used in the production process of the analysis found that the distillation process in the depropanizer tower and other tower reboiler heating steam can be used single-stage compression heat pump heat 130℃ to replace,and the use of low-temperature heat source from the production process emissions of 70-80℃ heat,so the use of waste heat to replace high-temperature heat source technology and equipment,is to achieve energy saving double effect of the typical case.For the two-stage compression heat pump,single-stage compression and jet high-temperature heat pump combined technology can produce high-temperature steam of 160℃,the economic benefits of the enterprise significantly.The calculation and comparison of the efficiency of traditional boiler and high temperature heat pump show that the high temperature heat pump has obvious advantages.This paper focuses on the application of high temperature heat pump in petrochemical process.The results of the design,data calculation,economic analysis and environmental analysis show that the high temperature heat pump has obvious comprehensive advantages through a case of a refinery workshop.