Submersible Pump Control Integration Reduces Wiring
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Solution Overview
Problem
Existing submersible pump assemblies require numerous electrical lead connections for both energy supply and sensor communication, limiting control and monitoring capabilities to external locations, which complicates installation and operation.
Innovation Solution
A submersible pump assembly with an integrated control device and external display/communication device, allowing for reduced lead connections and enabling monitoring at ground level, where the control device is integrated with the drive motor and sensors, and data transmission occurs via a single signal cable, independent of the mains connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If sensors and control devices are arranged outside the pump sump, then monitoring capability is improved, but the number of lead connections increases
Solution Approach 1:
The control device is merged with the drive motor into an integrated unit, combining control functionality with the motor housing. This eliminates the need for separate external control devices and their associated lead connections, while maintaining monitoring capabilities through the integrated control system that can communicate pump status and error information.
2Device complexity
If control device is integrated on drive motor, then lead connections are reduced, but external monitoring capability is limited
Solution Approach 1:
An intermediary communication system is implemented between the integrated control device and external monitoring systems. The control device on the drive motor communicates with external devices through a standardized interface, allowing monitoring capability to be maintained while keeping the control device integrated and minimizing lead connections.
3Ease of operation
If multiple lead connections are used for sensors and control, then control precision is improved, but installation complexity increases
Solution Approach 1:
Multiple control and sensing functions are merged into the integrated control device on the drive motor. This consolidation maintains precise control capabilities while significantly reducing installation complexity by eliminating the need for multiple separate lead connections and external control components.
Data Source
AI summary
An immersion pump assembly includes an electric drive motor and a control device (14) for controlling the drive motor, which are configured for dipping into a liquid (18) to be conveyed. An external display device (26) and/or an external communications device are/is configured for arrangement outside the liquid (18) to be conveyed and are/is connected to the control device (14) for signal transmission.