Petrochemical industry provides material support for economic development

but it also consumes a lot of energy. Petrochemical enterprises have a great potential for energy saving

and information technology has a great prospect in energy saving area. Based on the analysis of the petrochemical enterprises energy management business

material and management dimensions

the paper proposes the function of the energy management system

which consists of six functions: energy plan

energy operation

energy optimization

energy statistics

energy assessment and energy performance. Then the paper describes the plant model

which includes four layers: measurement layer

operation layer

statistics merge layer and accounting model layer. Next

the energy optimization model is described from the aspect of energy assumption optimization

pipeline optimization and energy power optimization. By establishing energy demand planning model

the energy assumption optimization refines energy media description

optimize device energy programs to improve the accuracy of energy plan to promote the production consumption balance

reduce energy backup redundancy and energy costs. Pipeline optimization is a process for water

electricity

steam

nitrogen

air

fuel and other energy media in the supply

production

transportation

transformation

consumption optimization. Considering the price factor of various field devices constraints and utilities

the energy power optimization is to optimize utility plan and on-line closed-loop control. Finally

the paper analyses the application effectiveness of pilot enterprises and provides a useful reference for promoting petrochemical enterprises energy management informatization process.