In-line temperature regulating valve
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional water temperature regulating valves in hydronic heating systems face challenges in achieving rapid and thorough mixing of hot and cold fluids, leading to inconsistent temperature control and false detections by thermostatic elements, which can result in suboptimal regulation of output water temperature.
Innovation Solution
A liquid temperature regulating valve with a cylindrical piston and sealing rings within a cavity, where the hot and return liquid inlets are in close proximity, allowing for more efficient mixing through an internal channel, and a temperature-reactive thermostatic element that moves the piston to control the flow ratios, ensuring consistent temperature profiles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If conventional cast or mechanical channels are used within a brass valve body to direct fluid flows, then the valve structure is simple and easy to manufacture, but the mixing of hot and cold fluids is slow and incomplete leading to inconsistent temperature control
Solution Approach 1:
The valve body is segmented into distinct functional zones: a mixing chamber where hot and cold fluids are combined, and separate flow paths for different temperature fluids. The piston is segmented with multiple openings to control different fluid streams independently, enabling precise mixing control and consistent temperature output.
2Speed
If the valve uses conventional flow passages to regulate fluid flow rates, then the device is easy to manufacture, but the valve cannot adapt rapidly to changes in inflows
Solution Approach 1:
The valve employs a dynamic piston mechanism that can rapidly adjust its position in response to inflow changes. The piston moves between different positions to open or close various openings, dynamically controlling the flow rates of hot and cold fluids to quickly adapt to changing conditions and maintain stable output temperature.
3Measurement precision
If conventional mixing chambers are used in temperature regulating valves, then the valve body is simple in structure, but false hot or cold detections occur by the thermostatic element
Solution Approach 1:
The valve design ensures that the thermostatic element is positioned in a specific location within the mixing chamber where the temperature is most representative of the mixed fluid. The mixing chamber geometry is optimized to create uniform temperature distribution in the detection zone, eliminating false detections while maintaining overall structural simplicity.
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 enables more rapid and thorough mixing of hot and cold liquids, resulting in more consistent temperature control and reduced erroneous temperature readings, providing better regulation and stability in hydronic heating systems.
Implementation Method 1
a thermostatic element (28) cooperative with the piston
Implementation Method 2
said piston being provided with a plurality of openings, located between the sealing rings, that permit communication between: the hot liquid inlet and an internal channel provided within the piston; and the return liquid inlet and the internal channel provided within the piston
Implementation Method 3
the hot liquid inlet and the return liquid inlet being in close proximity to promote the mixing of the two streams of liquid flowing into the cavity via the hot liquid inlet and return liquid inlet as the two streams of liquid flow through the internal channel in the piston
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A liquid temperature regulating valve including a valve body, a hot liquid inlet, a liquid inlet, a heated liquid outlet, and a return outlet; the hot liquid inlet and the return liquid inlet being in close proximity to promote the mixing of the two streams of liquid flowing into the valve.