Pipe Joint Drainage Insert for Dry Welding in Water Pipes
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Solution Overview
Problem
Existing methods for draining water from water pipes often require mechanical penetration, which is undesirable and can disrupt maintenance work like welding, as residual water flows can still occur due to leakage, even when the main flow is closed.
Innovation Solution
A water drainage device designed to be inserted into water pipes through existing seams or joints, featuring a pipe contacting section that lies flush with the pipe's inner profile to prevent water flow and a water drainage channel for efficient removal, allowing for a water-free region for maintenance and welding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mechanical penetration is used to remove water from the pipe, then water removal effectiveness is improved, but pipe integrity is damaged
Solution Approach 1:
The invention extracts the water removal function from the pipe structure itself by inserting a separate drainage device through existing seams or joints. The device includes a drainage channel that extends from the pipe interior to the exterior, allowing water to be removed without mechanically penetrating or damaging the pipe wall.
Solution Approach 2:
The drainage device acts as an intermediary element that facilitates water removal between the pipe interior and exterior environments. It provides a controlled pathway for water drainage through the pipe seam or joint, avoiding direct mechanical penetration of the pipe structure while achieving effective water removal.
2Quantity of substance
If central water flow closure is used, then overall water flow is stopped, but residual water leakage continues
Solution Approach 1:
The invention extracts the residual water from the pipe system by providing a dedicated drainage pathway that bypasses the main flow control mechanism. The drainage channel specifically targets and removes residual water that accumulates after central closure, ensuring complete water removal from the work area.
3Strength
If pipe seams or joints are used for device insertion, then pipe damage is avoided, but device access is limited
Solution Approach 1:
The drainage device is designed as a segmented or modular structure that can be inserted through the seam or joint between pipe sections. The device's body is configured to pass through the gap created by the pipe connection, allowing access to the pipe interior without requiring mechanical penetration of the pipe walls themselves.
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 effective removal of residual water flows, creating a dry working area without damaging the pipe, thus facilitating maintenance and welding operations by ensuring a water-free space.
Implementation Method 1
a water drainage channel, extending through the main body from the water inlet to the water outlet, adapted to enable water to be drained from the water pipe
Data Source
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AI summary
Disclosed is a water drainage device adapted to be inserted into a water pipe. The water drainage device comprises a main body (10) comprising, a first surface (11a) adapted to face the flow of water in said water pipe; a pipe contacting section (12) having an edge (12a) with a shape adapted to lie essentially flush with the inner profile of said water pipe to prohibit water from flowing past said pipe contacting section (12); a water inlet (12b) arranged in said pipe contacting section (12) and adapted to face the water flow in said water pipe; a water outlet (12c) adapted to be connected to a water removal means; a water drainage channel (13), extending through the main body (10) from the water inlet (12b) to the water outlet (12c), the main body (10) further comprises a width dimension, between the first surface (11a) and a second surface (11b) arranged on the opposite side of the first surface, with respect to intended direction of the water flow, that enables the device to be inserted into the water pipe through seams or joints in said water pipe. The water drainage device is adapted to enable water to be drained from the water pipe. Disclosed is also a curved module and a pipe contacting module to be fitted to such a water drainage device. Disclosed is further a use of the water drainage device in order to enable welding in a water free region of the pipe.