Aerobic Three-Phase Separator Installation Without Production Interruption
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Solution Overview
Problem
Existing sewage treatment plants face challenges in upgrading to higher discharge standards without interrupting production, as conventional methods for installing aerobic three-phase separators are not feasible in filled aeration tanks.
Innovation Solution
A device and method that includes an aeration tank with aerobic three-phase separators equipped with air blocking members and an evacuation system, allowing for non-stop production by creating siphon conditions and directing sewage flow through a water outlet manifold and pool for discharge, while an installation framework supports the separators on the tank's walls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional installation methods are used for aerobic three-phase separators, then the installation process is simple, but production must be interrupted and the aeration tank must be emptied
Solution Approach 1:
The installation system is divided into multiple independent components: water outlet hoses connected to each separator, a water outlet manifold collecting from all hoses, a water level pool for siphon initiation, and an evacuation system. This segmentation allows each component to be installed and configured independently while maintaining continuous operation of the aeration tank.
Solution Approach 2:
The water level pool acts as an intermediary device that enables siphon condition creation without interrupting production. It receives water from the aeration tank through the manifold and hoses, and its controlled drainage creates the siphon effect needed for separator installation while maintaining normal tank operation.
2Ease of manufacture
If the aeration tank is emptied for separator installation, then conventional installation methods can be used, but production is interrupted and treatment capacity is reduced
Solution Approach 1:
The water outlet hoses are pre-connected to each aerobic three-phase separator before installation into the tank. The water outlet manifold is pre-assembled with connection points for all hoses. This preliminary preparation allows separators to be quickly installed and connected without requiring tank emptying or complex in-tank assembly operations.
Solution Approach 2:
The evacuation system uses hydraulic principles to create siphon conditions through controlled water drainage from the water level pool. This hydraulic mechanism enables the separator installation process to proceed without interrupting production, as the siphon effect is generated independently within the outlet system rather than requiring tank emptying.
3Productivity
If aerobic three-phase separators are installed in a filled aeration tank, then production continues uninterrupted, but the water outlet pipe installation becomes extremely difficult
Solution Approach 1:
The water outlet connection system is arranged in a vertical dimension above the tank rather than horizontally within the tank. The water outlet manifold is positioned at the top with downward-bent outlets leading to the water level pool, allowing connections to be made from above the tank surface while the separators operate submerged, thus avoiding the difficulty of in-tank pipe installation.
Solution Approach 2:
Water outlet hoses are used instead of rigid pipes to connect the separators to the manifold. These flexible hoses can be easily routed and connected in the confined space above the tank, and their flexibility allows for simple connection to the downward-bent manifold outlets without requiring complex in-tank piping work.
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
Enables the in-situ upgrading of sewage treatment plants to meet higher standards without production interruptions, ensuring continuous operation during reconstruction by effectively managing sewage flow and aeration.
Implementation Method 1
an evacuation system for creating siphon conditions is provided in the water outlet manifold
Implementation Method 2
the aeration tank is capable of aeration at its bottom
Implementation Method 3
an upper part of the water level pool is provided with an overflow port or an overflow pipe, and a minimum overflow height of the overflow port or the overflow pipe is lower than a top of the overflow weir trough
Data Source
AI summary
A device and a method for installing an aerobic three-phase separator without interruption of production. The device comprises an aeration tank, the top of the aeration tank is provided with a number of aerobic three-phase separators that are capable of aeration at the bottom and are provided with a gas barrier at a sludge outlet. Each of the aerobic three-phase separators comprises an overflow trough, and the bottom of the overflow trough is provided with a drain pipe leading to the outside of the bottom end of the aerobic three-phase separator. Each of the drain pipes is connected to one end of a water outlet hose, and the other end of each water outlet hose is connected to a water outlet manifold. One end of the water outlet manifold is a sealed end, and the other end is bent downward and leads to a water level tank.