Hot-water heating apparatus
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Solution Overview
Problem
Conventional hot-water heating systems lack a specific configuration for detecting faults during operation, which can lead to unexpected shutdowns due to issues like clogged water filters or reduced water circulation, resulting in inconvenience and potential damage.
Innovation Solution
A hot-water heating apparatus with a circulation pump, a circulation quantity detector, and a controller that determines the quantity of circulated hot water and sends a notification via a network to a control terminal slave before an abnormal event occurs, such as clogging or reduced flow, allowing for proactive maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If no fault detection configuration is provided in conventional hot-water heating systems, then the system structure remains simple, but the system cannot detect faults during operation leading to unexpected shutdowns
Solution Approach 1:
The circulation quantity detector is installed to detect water circulation status before faults develop into critical failures. The system performs preliminary detection of circulation quantity and sends notifications in advance before abnormal events occur, allowing proactive maintenance rather than reactive repair after shutdowns.
Solution Approach 2:
The system implements feedback by detecting circulation quantity and comparing it against normal operating ranges. When the detected quantity indicates potential issues (such as filter clogging), the system sends notifications to alert operators, creating a closed-loop monitoring system that provides continuous feedback on system health.
2Reliability
If early fault detection is implemented using circulation quantity detection, then unexpected shutdowns are prevented, but additional detection devices and network components are required
Solution Approach 1:
The circulation pump incorporates an integrated motor current detector that monitors the pump's own operating current. This self-monitoring capability allows the pump to detect abnormalities in its own performance without requiring separate external sensors, reducing overall system complexity while maintaining continuous monitoring.
Solution Approach 2:
The controller performs multiple functions: it controls the circulation pump operation, processes data from the circulation quantity detector, determines abnormal events based on detected values, and sends notifications via network. This multi-functionality consolidates what could be separate components into a single integrated control unit, reducing device complexity.
3Reliability
If the system monitors circulation quantity continuously, then abnormal events are detected early, but energy consumption increases
Solution Approach 1:
The system performs circulation quantity detection at periodic intervals rather than continuously. The controller checks detected values at predetermined intervals and compares them against reference values, providing sufficient monitoring coverage while allowing energy-saving modes between measurement cycles.
Solution Approach 2:
The system uses the existing motor current detector as an intermediary to indirectly measure circulation quantity. Instead of requiring a dedicated power-intensive flow sensor, the system leverages the electrical characteristics of the pump motor to infer circulation status, significantly reducing energy consumption while maintaining detection capability.
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
This configuration enhances convenience by enabling early detection and prevention of abnormal events, allowing service engineers to address issues like filter clogging before they cause system shutdowns, thereby extending the apparatus's operational life and reducing maintenance costs.
Implementation Method 1
a heater incorporating a heat pump cycle and a heating cycle
Implementation Method 2
a circulation pump circulating the hot water in the heating cycle
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A hot-water heating apparatus includes a heater incorporating a heat pump cycle and a heating cycle in which hot water is circulated through the heater and a heating terminal unit, the hot water being obtained by heating water by the heater. The heating apparatus further includes a circulation pump circulating the hot water in the heating cycle, a circulation quantity detector configured to detect a quantity of the hot water circulated in the heating cycle, and a controller. A determiner determines a quantity level of the hot water circulated in the heating cycle and sends a result of the determined quantity level to a control terminal slave via a network.