RO Car Wash Pipeline Switching for Pressurized Raw and Pure Water
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Solution Overview
Problem
Existing car washing devices suffer from poor washing effects due to non-pressurized raw water and require waiting for pure water usage, leading to user experience issues and long-term damage from residual water in the pipes.
Innovation Solution
A car washing system that includes a filtering unit with an RO filter membrane and a booster pump, allowing for pressurized raw water washing and direct switching to pure water without waiting, while also incorporating a second branch line for pressure relief and water discharge after washing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If raw water is not pressurized and tap water pressure is applied during car washing, then the system structure is simple, but the washing effect is poor
Solution Approach 1:
The system pre-pressurizes raw water using a booster pump before it reaches the washing pipeline. This preliminary pressurization action ensures that raw water has sufficient pressure for effective washing before being used, resolving the contradiction between simple structure and poor washing effect by adding a pressurization step in advance.
Solution Approach 2:
The system uses hydraulic principles by incorporating a booster pump and high-pressure pump to pressurize water through the pipeline system. The pumps convert mechanical energy to hydraulic pressure, enabling effective water jet washing while maintaining a relatively simple overall system structure.
2Reliability
If RO membrane is rinsed before preparing pure water to ensure water quality, then pure water quality is guaranteed, but waiting time for pure water usage occurs which affects user experience
Solution Approach 1:
The system performs preliminary rinsing of the RO membrane and fills the pure water storage tank before the user actually needs pure water. This advance preparation ensures that when the user activates pure water washing, water is immediately available without waiting time, while still maintaining quality through the rinsing process.
Solution Approach 2:
The system maintains continuous operation of the RO membrane rinsing and pure water production process, ensuring that pure water is continuously prepared and stored in the tank. This continuous action eliminates interruptions and waiting time for users while ensuring water quality through ongoing filtration and rinsing.
3Device complexity
If water remains in the water pipe after car washing, then the device structure is simple, but long-term residual water damages the car washing device
Solution Approach 1:
The system extracts and removes residual water from the pipelines after washing operations complete. Through the waste water pipeline and control valves, remaining water is drained out of the system, preventing long-term residual water damage while maintaining a simple device structure without requiring complex drainage mechanisms.
Solution Approach 2:
The system automatically drains residual water through its own pipeline system and control mechanisms after washing operations. The control unit activates valves to redirect remaining water to the waste pipeline, enabling the system to self-clear without external intervention, thus protecting the device from water damage.
4Manufacturing precision
If pressurized raw water washing is implemented to improve preliminary washing effect, then washing performance is improved, but system complexity increases with booster pump and pressure relief mechanisms
Solution Approach 1:
The booster pump and pressure relief mechanisms serve multiple functions: pressurizing raw water for washing, enabling pressure relief after washing, and facilitating water discharge through the waste pipeline. This multi-functionality reduces overall system complexity by having components perform multiple tasks rather than requiring separate dedicated systems for each function.
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 effects with pressurized raw water, eliminates waiting for pure water, and prevents long-term damage by ensuring water is discharged after washing, enhancing user experience and device longevity.
Implementation Method 1
said filtering unit comprises an RO filter membrane
Implementation Method 2
said booster pump is set in the filtering pipeline; a low-pressure inlet of the booster pump leads to an outlet of the filter cartridge, and a high-pressure outlet of the booster pump leads to an inlet of the RO filter membrane
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. Water in the washing pipeline flows through the second branch line.