Dynamic Balancing Valve Cartridge for Constant Flow Control
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Solution Overview
Problem
Existing fluid flow control valves have complex structures and assembly methods due to numerous components, making them difficult to manufacture and maintain, and lack efficient dynamic balancing mechanisms that adapt to changing differential pressure conditions.
Innovation Solution
A flow control valve with a simplified design featuring a valve body, an intermediate chamber, a perforated element, and an elastic element that dynamically adjusts the flow rate based on differential pressure, reducing the need for springs and allowing easy maintenance by integrating components into a removable cartridge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional dynamic balancing solutions are used with multiple components and springs, then flow rate stabilization is achieved, but device complexity increases and manufacturing becomes difficult
Solution Approach 1:
The patent combines the dynamic balancing function and static regulation function into a single integrated valve body structure. The movable control element serves dual purposes: it regulates static flow rate through its position in the fluid passage and provides dynamic balancing by responding to differential pressure changes. This merging eliminates the need for separate spring components and multiple discrete parts, reducing device complexity while maintaining flow rate stabilization.
Solution Approach 2:
The movable control element is designed to perform multiple functions simultaneously: it acts as both a flow regulation mechanism (by adjusting passage opening) and a dynamic balancing element (by responding to pressure differential changes). This multi-functionality reduces the number of components needed while achieving both static regulation and dynamic balancing objectives.
2Adaptability or versatility
If traditional valve designs with numerous components are used, then flow control functionality is achieved, but ease of manufacture deteriorates
Solution Approach 1:
The valve is segmented into a valve body and a removable cartridge containing the movable control element. This segmentation allows the cartridge to be manufactured separately and then assembled into the valve body, simplifying the overall manufacturing process. The cartridge can be produced using standard machining operations and then easily installed, improving ease of manufacture while maintaining full flow control functionality.
3Reliability
If complex valve structures are used for dynamic balancing, then flow rate stabilization is achieved, but ease of repair deteriorates
Solution Approach 1:
The valve is divided into a valve body and a removable cartridge. The cartridge contains all the dynamic balancing components (movable control element, openings, and elastic element) as an integrated assembly. This segmentation allows the entire cartridge to be removed and replaced as a single unit, greatly improving ease of repair and maintenance accessibility without compromising flow rate stabilization functionality.
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 valve achieves both static and dynamic flow rate regulation with a straightforward construction, enhancing manufacturing ease and maintenance accessibility while maintaining consistent flow rates under varying pressure conditions.
Implementation Method 1
an elastic element, placed at one face of the perforated element facing the incoming direction of the fluid into the valve, such that to an increase in the differential pressure between inlet and outlet of the valve corresponds an enlargement of the elastic element along the face of the perforated element to cover a surface of the at least one opening
Data Source
AI summary
A flow control valve includes a valve body with inlet and outlet ports, and an intermediate chamber therebetween. The valve further includes a static flow rate regulator for the fluid, accessible from outside the valve body and adapted to vary the cross-section of a passage orifice between the inlet and the outlet of the valve. The valve further includes a dynamic flow rate balancer, regulating flow rate based on a change of the incoming flow rate. The flow rate balancer includes a perforated element interposed between the inlet port and the intermediate chamber, allowing fluid passage only through at least one opening of the perforated element and an elastic element at one face of the perforated element facing the inlet port of the fluid into the valve body. An increase in the inlet/outlet differential pressure corresponds to an enlargement of the elastic element, guaranteeing a constant flow rate.