Sewage Pipe Odor Venting With Segmented Negative Pressure
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Solution Overview
Problem
Current bad odor removal systems for sewage pipes struggle to maintain negative pressure and effectively remove high-density odors, leading to dispersion issues, especially in combined sewage systems where rainwater and domestic sewage are mixed, causing pollutants to decompose and generate bad odors that spread to residential areas.
Innovation Solution
A bad odor removal system with deodorizers installed at intervals along the sewage pipe, featuring a sucking unit, exhausting unit, and blast fan, along with air flow blocking membranes and a controller to manage airflow, and an air curtain device to prevent odor dispersion, capable of creating negative pressure and removing odors from both upper and lower parts of the pipe, including manholes and outlets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If fans are installed to extract bad odor, then odor removal capability is improved, but negative pressure formation is insufficient due to open structure and long pipe length
Solution Approach 1:
The sewage pipe is divided into multiple sections with individual deodorizers installed at intervals. Each deodorizer creates localized negative pressure in its section, ensuring effective odor removal throughout the entire long pipe system rather than relying on a single fan for the whole length.
Solution Approach 2:
Air flow blocking membranes are introduced as intermediary elements to seal off sections of the pipe. These membranes prevent air leakage through open structures and enable the formation of negative pressure by creating closed compartments for the deodorizers to operate effectively.
2Object-generated harmful factors
If rubber plates are used to block rainwater pipes, then odor dispersion prevention is improved, but sewage overflow prevention capability is lost
Solution Approach 1:
The air flow blocking membrane is designed to be dynamic rather than static. It can be opened when rainwater inflow is detected to prevent overflow, and closed during normal operation to prevent odor dispersion. This dynamic adaptability resolves the contradiction between odor prevention and overflow response capability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively prevents odor dispersion by maintaining negative pressure and removing high-density odors from the sewage pipe, including those at manholes and outlets, even during increased sewage or rainwater flow, providing a comprehensive solution for odor control.
Implementation Method 1
maintaining negative pressure in the sewage pipe by sucking out a bad odor accumulated in the sewage pipe
Implementation Method 2
each of the deodorizers includes a cooling device
Implementation Method 3
capable of effectively preventing dispersion of the bad odor by using a shielding device
Data Source
AI summary
The present invention relates to a bad odor removal system that is applied to a long sewage pipe, and provides a bad odor removal system for a swage pipe, and the system basically comprises: deodorizers which are installed at certain intervals on the upper part of the sewage pipe; and a bad odor ventilating device which is installed on the inside of the sewage pipe in connection with said deodorizers, and includes a cooling device, wherein an air flow blocking membrane is installed on the inside of the sewage pipe and bad odor dispersion-preventive plates that actively operate are installed on an outlet and a manhole, thereby effectively blocking all kinds of bad odors that may be generated from the entire sewage pipe.