Temperature-controlled fluid circulation apparatus and temperature-controlled fluid circulation system
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Solution Overview
Problem
Existing fluid circulation systems experience instability in temperature control due to pressure fluctuations from the temperature control target, affecting the precision of temperature adjustment and fluid flow conditions.
Innovation Solution
A temperature-controlled fluid circulation apparatus and system incorporating three-way valves, bypass paths, pressure sensors, and controllers to regulate fluid pressure and flow, using feedback and feed-forward control mechanisms to stabilize the circulation conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the fluid temperature is controlled by a refrigeration apparatus, then the temperature control function is achieved, but the pressure of the fluid downstream of the temperature control target largely changes, affecting the flowing condition and precision in temperature control
Solution Approach 1:
A pressure sensor detects the pressure of the fluid flowing through the flow path, and the controller adjusts the opening degree of the three-way valve based on the detected pressure to maintain stable circulation conditions. This feedback mechanism compensates for pressure fluctuations caused by temperature control, preventing disturbances in fluid flow and maintaining temperature control precision.
Solution Approach 2:
The three-way valve dynamically adjusts its opening degree in response to pressure changes detected by the pressure sensor. This dynamic adjustment allows the system to adapt to varying pressure conditions downstream of the temperature control target, maintaining stable fluid circulation and preventing temperature control precision degradation.
2Speed
If fluids with different temperatures are mixed by two fluid circulation apparatuses, then the temperature adjustment rapidity is improved, but the ratio of mixed fluids largely deviates from target value, impairing precision in temperature control
Solution Approach 1:
The pressure sensor and controller work together to detect and adjust fluid pressure in real-time, ensuring that the ratio of mixed fluids from multiple circulation apparatuses remains at the target value. This feedback control prevents large deviations in mixing ratios while maintaining the rapid temperature adjustment capability provided by multiple apparatuses.
Solution Approach 2:
The system changes the opening degree parameter of the three-way valve to adjust fluid flow ratios dynamically. By controlling the valve opening degree based on detected pressure, the system maintains precise mixing ratios while enabling rapid temperature adjustments through multiple fluid circulation apparatuses.
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
Improves the precision and stability of temperature control by maintaining desired fluid pressures and flow rates, enhancing the reliability and rapidity of temperature adjustments.
Implementation Method 1
a pressure sensor that detects a pressure of the fluid flowing through the flow path
Implementation Method 2
a three-way valve located in the flow path... The controller controls an opening degree of the three-way valve
Implementation Method 3
a fluid whose temperature has been controlled by a temperature control unit
Data Source
AI summary
A temperature-controlled fluid circulation apparatus includes a flow path through which a fluid controlled by a temperature control unit is circulated via a fluid supply target; a three-way valve in the flow path downstream of the fluid supply target and upstream of a temperature control position by the temperature control unit, a part between two out of three ports constituting a part of the flow path; and a bypass flow path branching from the flow path downstream of the temperature control position by the temperature control unit and upstream of the fluid supply target, to be connected to one remaining port out of the three ports of the three-way valve. A pressure of the fluid flowing through the flow path at a position that is downstream of the fluid supply target and upstream of the three-way valve is detected by a pressure sensor.