Valve Trim Installation Support for Confined Steam Valve Assembly
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Solution Overview
Problem
The installation and maintenance of steam conditioning valves in industrial facilities are hindered by space constraints and the need for heavy equipment, making it difficult to assemble and service the valve trim assembly, particularly in horizontally-oriented valve bodies.
Innovation Solution
A support tool that fits within the space envelope of the valve body, allowing for localized assembly and installation of the valve trim assembly, which includes a support structure that can be secured to a platform or grating, enabling technicians to assemble and install the diffuser, cage, and closure member without interference from adjacent equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional beam-style fixtures are used to assemble valve trim, then assembly support is provided, but space constraints in horizontally-oriented valve bodies prevent their use
Solution Approach 1:
The support structure is divided into multiple modular components including a base plate, vertical posts, and horizontal crossbars that can be assembled in segments within the confined space. This segmentation allows the support structure to be constructed piece by piece without requiring large clearance zones, directly resolving the contradiction between needing assembly support and having limited space envelope.
Solution Approach 2:
The support structure utilizes the vertical dimension by extending upward from the base plate to provide support at elevation, rather than requiring horizontal expansion. This dimensional transition allows the structure to fit within the constrained horizontal footprint while still providing adequate support volume for trim assembly operations.
2Ease of operation
If heavy equipment is used to lift and position valve trim components, then installation capability is improved, but space constraints prevent equipment access
Solution Approach 1:
The support structure serves as an intermediary device between the valve body and the heavy trim components. It provides localized lifting and positioning capability at the installation site without requiring external heavy equipment, thus mediating the contradiction between installation capability and equipment access space.
Solution Approach 2:
The support structure is designed to be self-contained with integrated lifting mechanisms and positioning features that eliminate the need for external heavy equipment. The structure performs its own support and positioning functions, enabling installation capability while avoiding the space requirements of external equipment.
3Area of stationary object
If the support structure extends beyond the valve body envelope, then assembly space is increased, but interference with adjacent equipment occurs
Solution Approach 1:
The support structure concentrates its support functions in localized zones around the valve body opening, rather than expanding uniformly in all directions. This localized quality provides adequate assembly space at critical positions while maintaining a compact overall footprint that avoids interfering with adjacent equipment.
Solution Approach 2:
The support structure performs multiple functions within a compact form factor: it provides support for trim components, serves as a positioning reference, and acts as a temporary platform for assembly tools. This multi-functionality increases effective assembly space utilization without requiring additional horizontal clearance.
Data Source
AI summary
A tool configured for use to assemble and install trim into a steam conditioning valve. These configurations can include a device that mounts in place of a bonnet and an actuator that technicians remove from the valve. The device can cantilever the trim assembly, essentially providing a platform on which technicians can slide the trim assembly into the valve body (or out of the valve body) to complete install or repair of the device. As an added benefit, technicians can also use the device to assemble the trim in proximity to the subject valve.