Abstract:

With the strong advocacy and promotion of sponge cities by the government, industrial plants, as an important part of a city, should actively explore the application of sponge concept in the plants. With large footprint and high water consumption, refineries and petrochemical plants are typical objects that urgently need to apply the sponge concept. This article compares the differences between the design concept of rainwater pipe network in traditional refineries and petrochemical plants and the sponge concept. Based on the relevant characteristics of various underlying surfaces in refineries and petrochemical plants, the units and blocks in the plant area are classified, and the feasibility of sponge transformation is analyzed for each category. Taking an under-construction rainwater pipe network in a refinery in a coastal province in southern China as the example, corresponding sponge facilities are installed based on the comprehensive analysis of its underlying surface conditions, and SWMM software is used to simulate the drainage effect after sponge transformation. The simulation results show that the installation of sponge facilities in the plant area can effectively reduce rainwater runoff, reduce the pipe diameter of rainwater pipe network, and reduce the construction investment of rainwater pipe network.

Key words: sponge city, sponge plant, refinery and petrochemical plant;rainwater pipe network