Pump device, industrial water system, method for operating an industrial water system, and self-teaching method for a delivery pump in an industrial water system
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Solution Overview
Problem
Existing industrial water systems face challenges in efficiently detecting water tapping events and adjusting pump operation to prevent significant cooling of hot water, often requiring external sensors and complex cabling.
Innovation Solution
A pump device with a check valve and bypass line is used to detect temperature changes caused by water tapping, allowing for self-learning pattern recognition and control of the feed pump operation without external sensors, ensuring convenient and energy-efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If external sensors and complex cabling are used to detect water tapping events, then detection capability is improved, but device complexity and installation difficulty increase
Solution Approach 1:
The pump device uses its own operational parameters (power consumption, rotation speed, throughput) to detect water tapping events. The control unit monitors these self-generated signals to identify when a tap is opened, eliminating the need for external sensors. This self-service approach resolves the contradiction by achieving detection capability without adding external detection components.
Solution Approach 2:
The pump device's control unit serves multiple functions: it controls pump operation, monitors system parameters, detects water tapping events, and implements recirculation strategies. By making the control unit multi-functional, the patent eliminates the need for separate external sensors while maintaining detection capability, thus reducing device complexity.
2Temperature
If recirculation pump operates continuously to maintain hot water temperature, then hot water availability is improved, but energy consumption increases
Solution Approach 1:
The recirculation pump operates periodically rather than continuously. The control unit activates the pump in recirculation mode at specific intervals or when hot water is detected in the line, and switches to draining mode when hot water is depleted. This periodic operation maintains hot water temperature availability while significantly reducing energy consumption compared to continuous operation.
Solution Approach 2:
The pump's operational mode dynamically changes between recirculation mode and draining mode based on real-time detection of hot water presence and system conditions. This dynamic adaptation allows the system to maintain hot water temperature when needed while minimizing energy consumption during periods when recirculation is unnecessary.
3Use of energy by moving object
If recirculation pump drains hot water from the line, then energy consumption is reduced, but hot water availability decreases
Solution Approach 1:
The control unit implements periodic switching between recirculation mode (to maintain hot water) and draining mode (to conserve energy). By detecting hot water presence and system conditions, the pump alternates between these modes, ensuring hot water availability is restored before draining occurs, thus balancing energy consumption with hot water availability.
Solution Approach 2:
The pump dynamically switches between recirculation and draining modes based on real-time system conditions. When hot water is detected, the pump operates in recirculation mode to maintain availability. When hot water is depleted or energy conservation is prioritized, it switches to draining mode, thereby dynamically balancing energy consumption against hot water availability.
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 solution effectively detects water tapping and adjusts pump operation to maintain hot water temperature, preventing excessive cooling and reducing energy consumption by using integrated sensors and a self-learning method within the pump device.
Implementation Method 1
a check valve (32) and a bypass line (34) for the check valve (32), wherein the bypass line (34) is arranged in parallel to the check valve (32) and wherein a combination of the check valve (32) and the bypass line (34) is arranged in series with the feed pump (116)
Implementation Method 2
a temperature sensor (142) integrated into the feed pump (116)
Data Source
AI summary
A pump device is proposed for arrangement on a recirculation line of an industrial water system including a feed pump, a check valve and a bypass line for the check valve. The bypass line is arranged in parallel to the check valve and wherein a combination of the check valve and bypass line is arranged in series to the feed pump.