Technical and Economic Analysis of Negative Pressure Drainage System and Gravity Flow Drainage System
In recent years,some drainage projects have chosen negative pressure drainage system to effectively solve the problems caused by small construction areas,dense buildings,complex underground pipelines and many sewage discharge points in old towns and rural areas.Taking a project in Qidong City as an example,this paper compares and analyzes the gravity flow drainage system and the negative pressure drainage system,and finds that the negative pressure drainage system has the advantages of simple construction,short construction period,low engineering cost and small public conflict.However,the negative pressure drainage system also has many problems,such as the large number of equipment and great difficulty in inspection and maintenance,and its operation effect,system stability and operation cost during the operation and maintenance period need to be further analyzed.It is suggests that the design institute should select the technical route according to the actual situation of the project and combined with the advantages and disadvantages of the gravity flow drainage system and the negative pressure drainage system.
negative pressure drainage systemgravity flow drainage systemtechnical and economic analysis
NETL
NSTL
万方数据
