Linear-Motion Valve Recess for Dead-Space-Free Viscous Flow
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Solution Overview
Problem
Existing valves are inadequate for handling highly viscous liquids and melts, particularly in manufacturing processes requiring continuous flow and high temperatures, as they often result in dead space and stagnation, and fail to provide efficient control over fluid flow.
Innovation Solution
A valve design featuring a shut-off element with a guide body that is linearly movable within the valve housing, incorporating a recess for fluid communication between the inlet and outlet openings, allowing for continuous regulation of fluid flow and prevention of stagnation by varying the cross-sectional area of the recess.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional valves are used for highly viscous liquids, then the valve structure is simple, but dead space and stagnation occur leading to poor fluid flow control
Solution Approach 1:
The shut-off element is designed to be linearly movable within the valve housing, allowing dynamic adjustment of the recess cross-sectional area to continuously regulate fluid flow. This dynamic mechanism enables the valve to adapt to varying flow requirements while maintaining reliable continuous flow without dead space accumulation.
Solution Approach 2:
The recess in the shut-off element has a variable cross-sectional area that can be changed by linear movement of the shut-off element. By changing the geometric parameter of the recess area, the valve achieves continuous flow regulation for highly viscous liquids, improving productivity while preventing stagnation.
2Ease of operation
If a shut-off element with fixed cross-section is used, then the valve structure is simple, but continuous regulation of fluid flow is not possible
Solution Approach 1:
The shut-off element incorporates a movable design with a recess of variable cross-sectional area. The linear movability allows operational regulation of fluid flow by adjusting the effective recess area, providing ease of operation for continuous flow control while maintaining relatively simple structural implementation.
3Productivity
If the recess cross-sectional area is increased to improve flow, then fluid flow improves, but the shut-off capability is reduced
Solution Approach 1:
The recess cross-sectional area is made dynamically adjustable through linear movement of the shut-off element. When full flow is needed, the recess area is maximized; when shut-off is required, the element moves to minimize the effective area. This dynamic adjustment resolves the contradiction between flow rate and shut-off effectiveness.
Solution Approach 2:
The geometric parameter of the recess cross-sectional area is changed by linear displacement of the shut-off element. This parameter change enables continuous adjustment between maximum flow (enlarged effective area) and complete shut-off (minimized effective area), achieving both high productivity and reliable shut-off capability.
Data Source
AI summary
A valve having a valve housing and a blocking element, wherein the valve housing has a hollow space for receiving the blocking element, an inlet opening for allowing a fluid to flow into the hollow space and an outlet opening for allowing the fluid to flow out of the hollow space, wherein the blocking element has a guide body and is arranged linearly moveably and at least partially in the hollow space of the valve housing between the inlet opening and the outlet opening, wherein the blocking element has at least one opening for allowing the fluid to flow from the inlet opening to the outlet opening via the opening.