Central Heating Valve with Rotatable Flow Control and Axial Closure
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Solution Overview
Problem
Existing valve systems for central heating plants are expensive and complex, making it difficult to replace concentrically journalled valve parts, and they lack the ability to set a maximal flow that can be subsequently modulated.
Innovation Solution
A valve system with a closure part that can axially displace to completely or partially close the opening area, allowing for regulation of flow without affecting the set maximal flow, comprising a first and second rotatable valve part with complementary through-flow openings and a cylindrical closure part that can be inserted to adjust the opening area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If concentrically journalled valve bodies are used to set maximal flow, then flow regulation capability is improved, but device complexity and cost increase
Solution Approach 1:
The valve is divided into a stationary part and a rotatable part with complementary through-flow openings. By segmenting the valve body into these two functional parts, the patent achieves flow regulation capability without requiring complex concentrically journalled valve bodies. The stationary part provides structural support while the rotatable part enables flow control, simplifying the overall design.
Solution Approach 2:
The rotatable part serves multiple functions: it acts as both the flow control element and the setting mechanism for maximal flow. By integrating these functions into a single component rather than requiring separate concentric valve bodies, the patent reduces device complexity while maintaining adaptability for flow regulation.
2Adaptability or versatility
If concentrically journalled valve bodies are used, then flow control is achieved, but ease of repair and replacement deteriorates
Solution Approach 1:
The valve is segmented into a stationary part that remains fixed in the valve body and a rotatable part that can be independently removed and replaced. This segmentation allows the rotatable part to be easily swapped out for repair or adjustment without affecting the stationary part, significantly improving ease of repair compared to integrated concentric valve bodies.
Solution Approach 2:
The rotatable part is designed as a separate, extractable component that can be removed from the valve body independently. This extraction capability enables easy replacement of worn or damaged parts without disassembling the entire valve, addressing the repairability issue while maintaining flow control functionality.
3Adaptability or versatility
If a closure part is added to regulate flow, then flow modulation capability is improved, but device complexity increases
Solution Approach 1:
The closure part is merged with the rotatable part, combining the flow modulation function with the existing flow control structure. This integration allows the same component to perform both maximal flow setting and flow modulation, avoiding the need for additional separate parts and thus not increasing device complexity.
Solution Approach 2:
The rotatable part is designed to serve multiple functions: it controls maximal flow through its rotational position and enables flow modulation through the closure part. This multi-functionality allows flow modulation capability to be added without requiring a separate dedicated modulation mechanism, maintaining simplicity.
Data Source
AI summary
A valve with a valve housing for controlling the liquid flow in a plant for central heating is provided. The valve includes an insert part with valve parts for controlling a liquid flow through the valve: a first part and a second part being mutually rotatable. The first and the second parts are provided with complementary through-flow openings that combine to define a common opening area and are configured such that, upon mutual rotation of those valve parts, a larger or a smaller total opening area is provided. The valve includes a closure part which is disposed such that, upon axial displacement, the closure part is capable of completely or partially closing off the total opening area through the through-flow openings.