Pump Control via Position Detection to Eliminate Pressure Difference
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional pump control systems are costly, inefficient in power usage, and limited in application range due to reliance on pressure differences, leading to poor performance and inconvenience, especially with air leakage issues.
Innovation Solution
A pump control device comprising a pump, a working device, and a detection device connected through a control device that communicates to manage operation conditions such as power supply, flow rate, and pressure based on the working device's operation mode, direction, or location, using technologies like infrared, magnetic, RFID, or direction sensors for wireless or cabled communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If pressure detection control is used to shut down the pump when pressure reaches a predetermined level, then the pump can operate automatically, but the system requires a significant pressure difference between activation and de-activation which limits application range
Solution Approach 1:
The patent changes the detection parameter from pressure difference to position/direction detection. The detection device detects the position or direction of the working device to determine pump operation state, eliminating the requirement for significant pressure difference and expanding application range to systems where pressure difference is not significant.
2Reliability
If the system is designed to be free of air leakage for optimal control performance, then control accuracy is improved, but manufacturing cost increases greatly
Solution Approach 1:
The patent replaces the pressure-based mechanical detection system with a position/direction detection system. The detection device detects position or direction parameters to control pump operation, eliminating the need for pressure-tight system design and reducing manufacturing costs while maintaining reliable control performance.
3Reliability
If measures are taken to improve air leakage problems, then system reliability is improved, but flow rate decreases or noise increases causing poor performance
Solution Approach 1:
The patent replaces pressure-based control with position/direction-based control, eliminating the need for leakage prevention measures. This avoids the trade-off between reliability and productivity, as the new system maintains reliable control without restricting flow rate or increasing noise.
4Extent of automation
If pressure detection elements are used to control pump operation, then automatic control is achieved, but the system is inconvenient for successive switching on and off
Solution Approach 1:
The patent replaces pressure detection with position/direction detection. The detection device detects position or direction parameters that directly indicate the working device operation state, enabling more responsive and convenient automatic control for successive switching operations compared to pressure-based systems.
Data Source
AI summary
An improved pump control device includes a control device that controls power supplied to a pump, a working device that is connected to the pump to control fluid to flow, and a detection device for detecting the working device. The detection device, when detecting the working device is making a specific operation, transmits operation information to the control device to change the operation condition of the pump so as to achieve advantages of easy use, power saving, and cost reduction.