Toilet Bowl Pressure Flushing System with Shock Wave
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Solution Overview
Problem
Existing pressure flushing devices are not suitable for toilet bowls due to insufficient water quantity and forceful discharge, and are complex to install, making them unreliable and inefficient in flushing effectively with low water consumption.
Innovation Solution
A compact toilet bowl pressure flushing system utilizing a gas hydraulic accumulator and a flow tank to create a water shock wave with a steep leading edge, activated by an automatic hydraulic valve, ensuring a forceful and efficient flush with minimal water usage, and incorporating features like permanent aeration to prevent backflow contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a pressure flushing device with pressure water storage means is used to provide sufficient water quantity, then the water volume increases, but the discharge becomes gradual and not forceful enough
Solution Approach 1:
The system pre-compresses air in an accumulator before flushing is needed. When the flush button is pressed, this pre-compressed air immediately expands to drive water out of the tank with high speed, creating a forceful shock wave discharge rather than a gradual flow.
Solution Approach 2:
The invention uses a gas-hydraulic accumulator where compressed gas and water are stored together. The pneumatic pressure of the pre-compressed air directly drives the hydraulic discharge of water through the outlet, enabling high-speed forceful discharge while maintaining adequate water volume.
2Quantity of substance
If a pressure reservoir with large capacity and thin flexible connecting pipe is used, then water storage volume increases, but the system becomes difficult to install and not compact
Solution Approach 1:
The patent integrates the pressure reservoir, flow tank, and connecting components into a single compact unit where the gas-hydraulic accumulator and flow tank are permanently joined. This merging eliminates the need for separate thin flexible connecting pipes and multiple sequential connections, making the system compact and easy to install while maintaining adequate water storage volume.
3Ease of operation
If a self-closing push button valve of complex design is used, then valve control functionality is achieved, but the water flow rate remains small
Solution Approach 1:
The system replaces the complex mechanical push button valve with a pneumatic-hydraulic control mechanism. A simple push button activates a valve that allows pre-compressed air to expand and drive water through the outlet at high flow rate, achieving both ease of operation and high 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
The system achieves a robust and forceful water shock wave with a steep leading edge, ensuring thorough flushing with 1.5 to 4.0 litres of water in the first second, while maintaining reliability and simplicity in design and installation, adhering to environmental and safety standards.
Implementation Method 1
The invention makes use of the energy of air compressed in a gas hydraulic accumulator ensuring a forceful discharge of water from a flow tank to the toilet bowl with an initial water shock wave
Implementation Method 2
a flushing valve with a water shock wave transfer
Data Source
AI summary
A toilet bowl pressure flushing system with shock wave flushing is a compact rigid unit made by a fixed connection of: a rigid body of a pressure module containing at least one gas hydraulic accumulator and one downstream flow tank connected by at least one connection opening; an overflow pipe; an automatic hydraulic valve module comprising a core, an inlet and outlet elements of the automatic hydraulic valve, where the inlet element of the automatic hydraulic valve is connected to the outlet of the flow tank and where the outlet element of the automatic hydraulic valve feeds into the overflow pipe. At the same time it comprises an inlet from the pressure water supply that feeds into the rigid body of the pressure module or into the automatic hydraulic valve module.