Layered control principle based interflow conduit wastewater spillage control method

A control method and layered control technology, applied in pump control, sewage removal, liquid level control, etc., can solve problems such as sewage overflow, sewage overflow in areas that cannot be effectively controlled, and cannot be stored.

Inactive Publication Date: 2007-08-08
HANGZHOU DIANZI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. It is expensive to build some large storage devices, and these devices are easy to be idle for a long time
[0005] 2. Real-time process control only controls the control equipment of a single pumping station, it is difficult to achieve the overall coordinated operation of multiple pumping stations, prone to sewage overflow, and cannot effectively control regional sewage overflow
[0006] 3. Real-time process control cannot "store" the actual experience of experienced operators into the control equipment
Therefore, there is a certain control blindness and lack of intelligence
[0007] 4. Neither of the two methods can realize unattended and automatic control

Method used

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  • Layered control principle based interflow conduit wastewater spillage control method
  • Layered control principle based interflow conduit wastewater spillage control method

Examples

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Embodiment Construction

[0062] Through the urban GIS system, ignoring nodes such as manholes, reservoirs, and weirs, an approximate urban multi-pumping station pipe network system is established, as shown in Figure 1. The circles in the figure represent the pumping stations, the squares represent the final sewage treatment stations, and the lines Represents the pipe, and the arrow represents the direction of water flow. The urban multi-pumping station pipe network system takes the pumping station as the basic node and links each other through the pipelines with directions to form a multi-fork tree model. Based on the layered control principle, the whole urban multi-pumping station pipe network system is divided into several layers, and each layer can be divided into several parts of the typical three-pumping station combined drainage system as shown in Figure 2. Each part uses Fuzzy control solves the local sewage overflow minimization problem, and finally the whole system area will achieve the minim...

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Abstract

The invention relates to a method of decreasing sewage overflow in combined flow pipe, which is controlled by fuzzy control under the base of layered control principle. For decreasing the generation of sewage overflow in combined flow pipe, prior methods have many shortages. The invention makes use of the urban multi-pump pipe network system built by the urban GIS system to divide the multi-pump pipe network system into several layers; each layer can be divided into several water drainage cells; each water drainage cell solves the minimum problem of partial sewage overflow by using fuzzy control; finally the sewage overflow in the whole system area is controlled to improve the urban flood prevention and anti-waterlogging ability and establish the foundation of operation of combined water drainage system from hand to automation.

Description

technical field [0001] The invention belongs to the field of industrial automatic control, relates to fuzzy control technology in intelligent control, and specifically relates to a method for reducing the overflow of combined pipeline sewage by using fuzzy control on the basis of layered control principles. Background technique [0002] The drainage system of many large cities at home and abroad still adopts the combined drainage system, which is a system that mixes domestic sewage, industrial wastewater and rainwater in the same set of ditches. However, with the continuous expansion of the city and the frequent occurrence of rainfall, the combined drainage pipes have overflowed, which has brought serious environmental pollution problems. [0003] In order to reduce the occurrence of sewage overflow in combined sewers, one way is to build some large storage facilities, such as reservoirs, storage tanks, etc. Another approach is real-time process control, which is widely ado...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E03F1/00G05D9/12F04B23/04F04B49/06
Inventor 薛安克王建中鲁仁全杨成忠王裕
Owner HANGZHOU DIANZI UNIV
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