Compressed Air Processing System Regeneration Sequence Valve Timing
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Solution Overview
Problem
The existing compressed air processing systems for commercial vehicles face inefficiencies in regeneration due to high-pressure air remaining in the supply line, reduced valve performance over time, and increased energy consumption, which affects the durability and efficiency of the pneumatic systems.
Innovation Solution
A compressed air processing system with a regeneration sequence valve and an unloader valve, where the unloader valve is opened before the regeneration line, delaying the opening of the regeneration line until a preset pressure is reached, and allowing air to be discharged to both the unloader valve and the separator-cooler, optimizing regeneration efficiency and minimizing energy loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the regeneration line is opened immediately during regeneration process, then the regeneration speed is improved, but high-pressure air remaining in the supply line causes reduced regeneration efficiency and energy loss
Solution Approach 1:
The unloader valve is opened in advance before the regeneration line is opened, to discharge high-pressure air from the supply line beforehand. This preliminary action removes the harmful high-pressure air that would otherwise reduce regeneration efficiency and cause energy loss when the regeneration line is opened.
2Productivity
If the regeneration line is opened early, then the regeneration process is accelerated, but shock and overpressure occur on the unloader valve reducing its durability
Solution Approach 1:
The unloader valve is activated in advance to discharge high-pressure air before the regeneration line opens. This preliminary discharge prevents shock and overpressure from occurring on the unloader valve during subsequent regeneration operations, thereby improving valve durability.
3Use of energy by moving object
If electronic control valves are used to optimize regeneration timing, then energy efficiency is improved, but valve switching timing changes due to aging affect regeneration performance
Solution Approach 1:
The system monitors and adjusts the switching timing parameters of electronic control valves based on their actual performance characteristics. When valve switching timing changes due to aging, the control system compensates by adjusting the timing parameters to maintain optimal regeneration performance and energy efficiency.
4Device complexity
If the regeneration line opens at normal pressure, then the system operation is simple, but high-pressure air in the supply line reduces compression efficiency
Solution Approach 1:
The unloader valve performs a preliminary discharge of high-pressure air from the supply line before the regeneration line is opened. This simple preliminary action removes the harmful high-pressure air that would reduce compression efficiency, without requiring complex system modifications.
Data Source
AI summary
The present disclosure provides a compressed air processing system of which the operation of supplying compressed air and the regeneration operation can be efficiently controlled by an electronic control unit. In particular, the present disclosure is characterized in that the pressure of a regeneration sequence valve installed in a regeneration line is increased over a set pressure by controlling a valve, which is electronically controlled, to switch, so the opening time of the regeneration line is delayed in comparison to the opening time of an unloader valve, whereby regeneration efficiency is improved.

