Sewage Pit With Flushing Suspension For Blockage Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sewage systems face challenges with blockages when shredding hospital waste, particularly due to the quality of shredding devices and waste composition, leading to inefficiencies and increased costs for maintenance and cleaning.
Innovation Solution
A sewage pit design with a receiving surface and flushing liquid system that suspends solid constituents, reducing the likelihood of blockages by setting waste into suspension and facilitating efficient discharge to sewer pipes, integrated into a waste treatment system with shredding, separating, and purification devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If waste material is discharged directly via sewer pipes, then the discharge process is simple and direct, but the risk of sewer blockages increases due to poor shredding quality and waste composition
Solution Approach 1:
A sewage pit is introduced as an intermediary component between the waste discharge system and the sewer pipes. The pit receives shredded waste material and allows settling of solid constituents, while flushing liquid suspends particles to prevent blockages during discharge to the sewer system
Solution Approach 2:
Solid constituents and potential blockage-causing materials are extracted from the waste stream by allowing them to settle in the sewage pit, separating them from the liquid phase before discharge to the sewer
2Reliability
If a sewage pit is introduced to prevent blockages, then the reliability of waste discharge improves, but the system complexity and maintenance costs increase
Solution Approach 1:
The sewage pit is designed to be self-cleaning through the settling and suspension mechanism. Flushing liquid automatically suspends settled particles, and the system maintains itself through periodic flushing without requiring complex mechanical cleaning devices
Solution Approach 2:
The outlet of the sewage pit is configured at a height and with a diameter that enables direct connection to sewer pipes without requiring additional pumping or technical measures, equalizing the potential energy levels between pit and sewer system
3Reliability
If flushing liquid is supplied to suspend solid constituents, then the chance of blockages is reduced, but the energy consumption and water usage increase
Solution Approach 1:
Flushing liquid is supplied periodically rather than continuously to suspend solid constituents. This periodic flushing action is sufficient to prevent blockages while significantly reducing water consumption and energy requirements compared to continuous flushing systems
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 ensures reliable and efficient discharge of waste materials, minimizing the risk of blockages and enhancing the treatment and transport of waste, particularly in buildings like hospitals and airports, by suspending solid constituents within the flushing liquid and pumping the mixture directly to the sewer system.
Implementation Method 1
The receiving surface is configured to set the supplied waste material at least partially into a swirling motion with the flushing liquid
Implementation Method 2
By guiding spraying liquid along the receiving surface the received waste material can be set into motion so that the solid constituents once again tend to become suspended in the liquid constituents
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to a sewage pit (1, 60) for receiving and discharging waste material, particularly domestic, medical and/or industrial waste comprising liquid and solid constituents, to the sewer (52), the sewage pit comprising: - a housing (2, 3, 4) with a closable receiving space (9), wherein one or more of the walls of the housing is provided with at least one inlet (19) configured to carry the waste material into the receiving space, a flushing liquid feed (10) which is embodied to feed flushing liquid to the receiving space for bringing the waste material into suspension, and at least one outlet (29) which can be connected to the sewer and is configured to discharge the mixture of waste material and flushing liquid from the receiving space and to the sewer, - at least one pump (25, 26) connectable or connected to the one or more outlets which is configured to pump the mixture which has been brought into suspension from the receiving space and to discharge the mixture via the one or more outlets.