Distributor Valve Flow Meter With Stable Display and Fine Adjustment
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Solution Overview
Problem
Existing distributor valves with flow meters in hot water heating systems lack precision in flow measurement and sensitive valve adjustment, leading to inefficiencies and power losses.
Innovation Solution
A distributor valve design featuring a tubular element with a plunger and closure part that rotates along a displacement axis, allowing for precise control of flow through a conical bore arrangement, reducing turbulence and enhancing seal integrity, enabling more accurate flow measurement and sensitive adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a conventional flow meter is used in the distributor valve, then the flow rate can be measured, but the measurement precision is insufficient and the display is restless
Solution Approach 1:
The flow measuring device is segmented into separate functional components: a stationary housing with scaling, a movable plunger with display portion, and a compression spring. This segmentation allows the display to be isolated from turbulent flow conditions while still accurately measuring flow rate through the plunger's controlled movement along the displacement axis.
Solution Approach 2:
The plunger acts as an intermediary between the flow field and the display system. It translates complex turbulent flow patterns into simple, readable linear displacement along a calibrated scale, providing both accurate measurement and stable visual indication of flow rate.
2Ease of operation
If the valve adjustment mechanism is simplified, then the device complexity is reduced, but the valve adjustment sensitivity is insufficient
Solution Approach 1:
The valve adjustment mechanism uses dynamic elements including a movable plunger guided along the displacement axis, a compression spring providing continuous pressure, and a closure part that rotates to control flow. This dynamic design enables sensitive adjustment through small rotational movements of the tubular element, which translate to precise changes in the closure part's position.
Solution Approach 2:
The mechanism changes the flow control parameter through rotational movement of the tubular element, which converts to linear displacement of the closure part along the displacement axis. This parameter transformation enables fine-tuned control of the valve opening degree, achieving high adjustment sensitivity.
3Reliability
If the tubular element is made longitudinally movable for sealing, then the seal integrity is improved, but the device complexity increases
Solution Approach 1:
The sealing system is self-regulating through the compression spring that continuously presses the plunger against the housing. The longitudinal movability of the tubular element allows the sealing surfaces to self-adjust and maintain contact under varying pressure conditions, ensuring reliable sealing without complex external control mechanisms.
4Manufacturing precision
If the closure part is positioned to control flow precisely, then the flow control accuracy is improved, but turbulence increases
Solution Approach 1:
The closure part features a conical surface that gradually reduces the flow passage area as it moves into the bore. This conical geometry creates a smooth, tapered transition for the fluid flow, avoiding sudden constrictions that would generate turbulence while maintaining precise control over the flow rate.
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 design achieves precise flow measurement and improved valve adjustment by minimizing turbulence and enhancing seal integrity, resulting in more accurate flow control and reduced power losses.
Implementation Method 1
A compression spring 34 extending helically around the plunger 31 is supported on the display part 32 and on the bushing 33 provided in the inner bore 13 of the tubular element 12, so that the inflow part 30 is pressed into an end position
Implementation Method 2
the inflow part 30 can be deflected by the flow of water in the inner bore 13 of the tubular element 12
Data Source
Figure 1
Figure 2
AI summary
The distributor valve [1] has a main tube section [3] with openings [4,5]. At the bottom is a connecting element [6] screwed into the tube and sealed [7]. A tube element [12] is supported on threaded sections [16]. A central rod is displaced [31] and the end has a display element to show the flow rate from the valve.