RO Car Wash Pipeline Layout for Pressurized Rinse Switching
Solution Overview
Problem
Existing car washing systems face poor washing effectiveness due to non-pressurized raw water and the need to rinse RO membranes before switching to pure water, leading to user wait times and residual water issues that damage the device.
Innovation Solution
A car washing system incorporating a filtering unit with a booster pump to pressurize raw water, an RO filter membrane, and a high-pressure pump to enhance washing effectiveness, along with a control unit managing valves to optimize water flow and pressure relief, allowing direct switching to pure water washing without waiting and ensuring efficient discharge post-use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If raw water is not pressurized during washing, then the system structure is simple, but the washing effect is poor
Solution Approach 1:
The booster pump pressurizes raw water before it reaches the RO membrane, performing the pressurization action in advance. This allows the raw water to effectively rinse the car body before pure water washing, improving the washing effect without requiring complex high-pressure systems during the pure water stage
Solution Approach 2:
The system uses hydraulic principles with the booster pump to increase raw water pressure to a usable level for preliminary washing, while the pure water system maintains a simpler structure. The differential pressure approach allows effective washing with varying pressure requirements for different washing stages
2Reliability
If RO membrane is rinsed before preparing pure water, then water quality is ensured, but user wait time increases
Solution Approach 1:
The system performs preliminary rinsing of the RO membrane using raw water before pure water production is needed. This preliminary action clears the membrane surface, allowing immediate pure water production when required, thus ensuring water quality while minimizing user wait time
Solution Approach 2:
The system maintains continuous readiness for pure water production by keeping the RO membrane pre-rinsed and ready. The dual-pipeline design allows seamless switching between raw water and pure water modes without interruption or waiting period
3Productivity
If water remains in the water pipe after washing, then the system is ready for next use, but long-term residual water damages the device
Solution Approach 1:
The system extracts and removes residual water from the pipelines after washing operations complete. The design includes drainage pathways and control mechanisms that actively remove water from pipes, preventing long-term residual water accumulation that would damage the device
Solution Approach 2:
The system converts the potential harm of residual water into a benefit by using controlled drainage mechanisms. The residual water is deliberately directed to drainage points where it can be safely discharged, transforming what would be a damaging condition into a controlled discharge process that protects the device
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 improved preliminary washing effectiveness, eliminates user wait times, and prevents long-term damage by ensuring complete water discharge after use, enhancing user experience and device longevity.
Implementation Method 1
a filtering unit with a booster pump to pressurize raw water
Implementation Method 2
an RO filter membrane
Implementation Method 3
a high-pressure pump to enhance washing effectiveness
Data Source
AI summary
A car washing system comprises a filtering unit, a pure water pipeline, a waste water pipeline, a washing pipeline, an optional first branch line, and a second branch line. The filtering unit comprises an RO filter membrane, a filtering pipeline and a booster pump. One end of the filtering pipeline is connected to the inlet of the RO filter membrane. The booster pump is set in the filtering pipeline. The pure water pipeline is connected between a pure water outlet of the RO filter membrane and one end of the washing pipeline. The joint of the pure water pipeline and the washing pipeline is provided with a high-pressure pump. One end of the waste water pipeline is connected with waste water outlet of the RO filtering membrane, and the other end is a discharge end. The second branch line is connected between the waste water pipeline and the washing pipeline.