Sewage Agitator Nozzle Tangential Spray Rotational Flow
Solution Overview
Problem
Current sewage pumping stations face issues with floating substances like fats and greases accumulating and causing clogging, as they often do not reach the pump inlets, leading to inefficient operation and increased maintenance needs.
Innovation Solution
Incorporating a spray device with nozzles directed downward and tangentially to the central axis of the container, which disperses floating materials and creates a rotational flow, assisting the primary pump in removing these substances, and utilizing a secondary pump to spray liquid and further aid in the removal process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pumps are placed with inlets under the liquid surface to prevent malfunction, then pump reliability is improved, but floating substances accumulate on the surface and cause clogging
Solution Approach 1:
The spray device performs preliminary action by dispersing floating substances before they can accumulate and form clogging masses. The spray creates rotational flow that continuously moves floating materials toward the pump inlets, preventing the formation of hardened conglomerations that would otherwise block the inlets or damage the pumps.
Solution Approach 2:
The spray device acts as an intermediary between the floating substances and the pump inlets. It mediates the movement of floating materials by creating rotational flow patterns that guide these substances toward the pump inlets, ensuring they reach the pumps without forming problematic accumulations.
2Productivity
If spray device creates rotational flow to disperse floating material, then material removal efficiency is improved, but device complexity increases
Solution Approach 1:
The spray device performs multiple functions simultaneously: it disperses floating materials, creates rotational flow patterns, and directs substances toward pump inlets. This multi-functionality achieves improved material removal efficiency without requiring multiple separate devices, thereby limiting the increase in system complexity.
Solution Approach 2:
The spray device utilizes hydraulic principles by pumping liquid through nozzles to create rotational flow patterns. This hydraulic approach achieves effective material dispersion and movement using fluid dynamics rather than complex mechanical agitation mechanisms, maintaining relative simplicity while improving productivity.
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
This solution enhances the reliability and reduces labor-intensive maintenance by effectively dispersing and removing floating materials, reducing clogging and operational issues within the pumping station.
Implementation Method 1
creating a rotational flow around the central axis to assist the first pump in removing such material when the first pump pumps the sewage
Implementation Method 2
a second pump in the container for pumping liquid from the sewage in the container to the spray device
Data Source
AI summary
A sewage system component spray assembly is attached at a predetermined height above pumps in the interior of the component and has at least one nozzle for spraying liquid downwardly and generally tangential to a center of the sewage system component. Operation of the nozzle causes the liquid to disperse floating material on the sewage surface and creating a rotational flow around the center to direct such material to the pumps. The source of the sprayed liquid may be internal to the sewage system component.