Rotating Operation Valve for Pipe Boring Without Flow Stop
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Solution Overview
Problem
Conventional methods for inserting and removing gate valve bodies in pipes disrupt fluid flow and require separate valve bodies for each operation, leading to increased costs due to the inability to reuse water stop valves.
Innovation Solution
An apparatus with a sealing case and valve cover portion that allows for flow-undisrupted boring and easy insertion/removal of a gate valve body, featuring a rotating operation valve body with a gear mechanism for sealing and unsealing the pipe, eliminating the need for additional valve housing or covers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a gate valve body is inserted into the existing pipe to stop fluid flow, then the pipe can be accessed for maintenance operations, but the valve body cannot be removed and must be left attached, preventing reuse
Solution Approach 1:
The sealing case is divided into first and second separate cases that can be detached from each other, allowing the gate valve body to be removed from the pipe while maintaining sealing capability for future operations
Solution Approach 2:
The sealing case with the operation valve body serves multiple functions: it seals the opening in the pipe, provides a mechanism to insert and remove the gate valve body, and can be reused for multiple maintenance operations rather than requiring a new valve body each time
2Reliability
If a separate valve body is provided for each water stop operation, then the pipe can be effectively sealed for maintenance, but costs increase due to inability to reuse the valve
Solution Approach 1:
The gate valve body is recovered and removed from the pipe after the maintenance operation is complete, allowing it to be reused in future operations rather than being discarded, thereby reducing material loss and costs
3Reliability
If a complex valve housing and cover structure is used to accommodate the gate valve body, then the valve can be properly sealed and operated, but the apparatus complexity increases
Solution Approach 1:
The operation valve body integrates multiple functions into a single component: it serves as both the sealing element against the valve seat and the rotating mechanism to open/close the branch hole, eliminating the need for separate valve housing and cover structures
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 and cost-effective insertion and removal of gate valve bodies without disrupting fluid flow, allowing for reuse and reducing operational complexity and costs by simplifying the apparatus assembly and operation.
Implementation Method 1
a driven gear provided on the operation valve body for rotating the operation valve body in the circumferential direction of the existing pipe following the rotation of the driving gear unit
Data Source
AI summary
An apparatus including: a sealing case including separate cases and enclosing a portion of an existing pipe, and a valve cover portion attached to a branch pipe portion protruding upwardly from the existing pipe; a gate valve body accommodated by the valve cover portion and the branch pipe portion to be intruded into the existing pipe to stop the flow of the fluid through the existing pipe; an operation valve body having an arc-shaped lateral cross section for opening/closing a branch hole formed in the branch pipe portion by rotating in the circumferential direction of the existing pipe; and a rotation mechanism for rotating the operation valve body, the rotation mechanism including: an operation portion; a driving gear unit which rotates; and a driven gear for rotating the operation valve body in the circumferential direction of the existing pipe following the rotation of the driving gear unit.