Valve Drive Actuator with Integrated Preload Release Mechanism
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Solution Overview
Problem
Existing valve drives face challenges in being easily and safely mounted on different types of valves due to non-standardized closing dimensions, requiring adapters and external tools, which can lead to operational inefficiencies and safety risks during assembly.
Innovation Solution
A valve drive design featuring a lifting element with a prestressing mechanism, a fixing device, and triggering means that allows for simultaneous actuation of the fastening and release of the fixing device, enabling easy and safe mounting and adjustment to various valve types without additional external tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If adapters are used to adapt valve drives to different valve types, then adaptability to various valve configurations is improved, but device complexity and production effort increase
Solution Approach 1:
The valve drive incorporates a lifting element with adjustable positioning capability that can be dynamically adapted to different closing dimensions. The lifting element can be positioned at multiple discrete locations along its travel path, allowing the same valve drive to accommodate various valve types without requiring separate adapters for each configuration.
Solution Approach 2:
The valve drive is designed with a universal lifting element that can perform multiple functions by adjusting its position. A single valve drive design can interface with different valve types by repositioning the lifting element, eliminating the need for multiple specialized adapters and reducing overall system complexity.
2Ease of manufacture
If external tools are used for preloading the lifting element, then preloading capability is improved, but ease of operation and assembly safety deteriorate
Solution Approach 1:
The valve drive incorporates an integrated preloading mechanism that allows the lifting element to be preloaded using the valve drive's own components without requiring external tools. The triggering means activates the fastening means which simultaneously secures the valve drive to the valve and releases the fixing device, enabling safe and convenient assembly.
Solution Approach 2:
The preloading function is merged with the fastening and release functions into a single integrated mechanism. The triggering means simultaneously actuates the fastening means and releases the fixing device, combining multiple operations into one safe and convenient assembly process that eliminates the need for separate external preloading tools.
3Productivity
If the lifting element is preloaded before assembly, then operational readiness is improved, but risk of premature release and assembly errors increases
Solution Approach 1:
The lifting element is preloaded in a fixed position before assembly, preparing the valve drive for immediate operation. The fixing device secures the lifting element in this preloaded state during assembly, preventing premature release. Only after the valve drive is securely fastened to the valve does the triggering means release the fixing device, ensuring safe assembly sequence.
Solution Approach 2:
The triggering means provides a feedback mechanism that ensures the valve drive is properly assembled and secured before releasing the lifting element from its fixed position. The simultaneous actuation of fastening means and release of fixing device creates a controlled sequence that prevents assembly errors and ensures operational safety.
Data Source
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AI summary
The valve drive has a release arrangement (49) with which a fixing device can be released and an actuating device can be simultaneously activated so that the valve drive can be simultaneously positioned in the fixed position and a lifting element can be simultaneously released from a bias position.