Elbow Fitting Isolation Housing for Hot Tapping
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Solution Overview
Problem
Current hot tapping and plug setting technologies are unsuitable for use with elbow fittings due to the challenges of sealing and accessing these fittings in pressurized fluid lines.
Innovation Solution
An apparatus comprising a fluid-containing elbow housing with cooperating components, seals, and an isolation valve that allows for secure sealing and tool insertion, enabling the attachment of hot tapping and plug setting tools to drill or insert plugs into elbow fittings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If hot tapping and plug setting tools are used on pressurized fluid lines, then openings can be formed and plugs can be set, but these technologies are unsuitable for elbow fittings due to sealing and access challenges
Solution Approach 1:
An isolation housing is introduced as an intermediary device that encloses the elbow fitting. The housing provides a controlled environment with seals at the openings and an isolation valve, mediating between the pressurized fluid line and the hot tapping/plug setting tools, thereby enabling their use on elbow fittings while maintaining sealing reliability.
Solution Approach 2:
The isolation housing serves multiple functions: it provides sealing at the elbow openings, contains the pressurized fluid, provides tool access through the isolation valve, and enables both hot tapping and plug setting operations. This multi-functionality makes the system adaptable to elbow fittings while maintaining reliability.
2Adaptability or versatility
If sealing mechanisms are added to enable elbow fitting isolation, then adaptability to elbow fittings improves, but device complexity increases
Solution Approach 1:
The isolation housing is divided into cooperating components that can be assembled around the elbow fitting. The sealing system is segmented with separate seals for different openings and an isolation valve, allowing modular assembly and maintenance while achieving the required adaptability.
3Ease of operation
If tool access is provided through the housing, then hot tapping and plug setting operations become possible, but the sealing system becomes more complex
Solution Approach 1:
The isolation valve serves as a universal access point that enables both hot tapping operations (drilling) and plug setting operations. This single multi-functional access mechanism simplifies the overall system compared to having separate access mechanisms for each operation, while still providing the necessary ease of operation.
Data Source
AI summary
An apparatus for isolating elbow fittings includes a fluid containing elbow housing with cooperating components. The elbow housing has a first opening for a first branch of an elbow, a second opening for a second branch of an elbow and a tool insertion opening in axial alignment with the first opening. The cooperating components of the elbow housing are secured around an elbow. A seal seals the first opening, the second opening, and the cooperating components. An isolation valve controls the tool insertion opening.