Heat medium temperature adjustment system
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Solution Overview
Problem
In temperature adjustment systems with heat medium circuits, system malfunctions such as breakdowns of selector valves or heat sources lead to uncontrolled temperatures of temperature-adjusted subjects due to unregulated heat medium flow.
Innovation Solution
A heat medium temperature adjustment system with a series flow path connecting pumps and heat exchangers, allowing controlled temperature adjustment even during system malfunctions, using a flow path switching device and refrigerant circuit controller to manage heat medium circulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If selector valves and heat sources are used to control heat medium temperature in individual heat medium circuits, then temperature adjustment capability is improved, but system reliability deteriorates due to potential malfunctions of these components
Solution Approach 1:
The patent applies beforehand cushioning by providing a bypass flow path that allows heat medium to flow from the heat source directly to the heat exchanger without passing through the selector valve. This备用 path is prepared in advance to cushion against the potential failure of the selector valve, ensuring continuous temperature adjustment capability even when the selector valve malfunctions.
2Device complexity
If selector valves are used to connect individual heat medium circuits in series, then device complexity is reduced, but reliability deteriorates due to single point of failure
Solution Approach 1:
The patent applies segmentation by dividing the heat medium flow path into two independent routes: a main flow path through the selector valve and a bypass flow path. This segmentation allows the system to operate in different configurations - normally using the selector valve for precise control, and alternatively using the bypass path when the selector valve fails, thus improving reliability without significantly increasing overall system complexity.
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
Ensures controlled temperature adjustment of multiple subjects by forming a series flow path to maintain temperature stability despite system failures, enabling continued operation and comfort in heating and cooling modes.
Implementation Method 1
a plurality of heat exchangers for temperature-adjustment subjects configured to perform heat exchanges with temperature-adjustment subjects
Implementation Method 2
a pump configured to pump the heat medium
Data Source
AI summary
A heat medium temperature adjustment system includes a heat medium circuit configured to circulate heat medium having a temperature controlled by a heat exchange with a heat source. The heat medium circuit includes a pump configured to pump the heat medium, and a plurality of heat exchangers for temperature-adjustment subjects configured to perform heat exchanges with temperature-adjustment subjects. The heat medium circuit is configured to form a series flow path to connect the pump to the plurality of heat exchangers for temperature-adjustment subjects when a system malfunction occurs.