Heat Exchanger End Cover Hinge Kit for Hoist-Free Detachment
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Solution Overview
Problem
Existing heat exchangers require third-party assistance or specialized tools for detaching heavy end covers, which lack universal applicability and necessitate hoisting, complicating maintenance and repair processes.
Innovation Solution
A tool kit comprising hinge devices with bases, rotating members, and connecting members that allow for the detachment of end covers by rotating them along a shared axis, using support bolts and lock members to facilitate manual operation without hoisting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If third party assistance or specialized tools are used for detaching end covers, then the end cover can be removed, but the operational complexity and cost increase
Solution Approach 1:
The detachment tool is divided into multiple independent components: a base fixed to the end flange, a rotating member fixed to the end cover, and a connecting member linking them. This segmentation allows each component to perform its specific function independently, simplifying the overall operation while enabling the heavy end cover to be detached without specialized equipment
Solution Approach 2:
The connecting member acts as an intermediary between the base and the rotating member, transferring the rotational motion from the rotating member to the end cover. This intermediary mechanism enables the operator to control the heavy end cover detachment through a manageable rotational motion rather than direct lifting or complex manipulation
2Ease of operation
If specialized tools are used for detaching end covers, then the end cover can be removed, but the adaptability across different heat exchanger types is limited
Solution Approach 1:
The base is designed with a universal mounting structure that can be attached to various types of end flanges using standard fastening methods. The rotating member similarly interfaces with different end cover types. This universal design allows the same detachment tool to be applied across multiple heat exchanger types and end cover configurations, eliminating the need for specialized tools for each application
3Productivity
If the end cover is detached using traditional methods, then the end cover can be removed, but hoisting equipment and third party assistance are required
Solution Approach 1:
The tool utilizes dynamic rotational motion to detach the end cover. The rotating member rotates along with the end cover around a vertical axis, converting the static heavy lifting problem into a dynamic rotational operation. This allows a single operator to control the detachment process through manageable rotational movements rather than requiring hoisting equipment for the entire heavy end cover
Solution Approach 2:
The rotating member is fixed to the end cover and rotates together with it, allowing the end cover to essentially detach itself through the rotational motion. The base remains stationary while the rotating member and end cover move, enabling the system to perform its own detachment with minimal external assistance beyond the initial rotational input
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
Enables efficient disassembly and assembly of heat exchanger end covers by a single worker, reducing operational complexity and cost, and ensuring adaptability across various types of heat exchangers.
Implementation Method 1
the rotating member is capable of rotating along said same axis relative to the base
Data Source
AI summary
The present invention provides a tool kit for a heat exchanger and a method for detaching an end cover of a heat exchanger. The tool kit comprises: a first hinge device and a second hinge device, wherein the first hinge device and the second hinge device are mounted between an end flange and the end cover at a first position and a second position on the same axis, the first hinge device and the second hinge devices each comprising: a base, configured to be fixedly connected to the end flange; a rotating member, configured to be fixedly connected to the end cover; and a connecting member, configured to be detachably connected to the base and the rotating member, so that the rotating member is capable of rotating along the same axis relative to the base.