Self-Sealing Grouting Pipe Head for High-Coagulability Slurry
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Solution Overview
Problem
High-coagulability grouting materials face issues with viscosity, poor flow, and rapid coagulation, leading to pipe blockages and inefficient grouting due to existing connection methods and pipe designs, which are labor-intensive and prone to damage.
Innovation Solution
A grouting device comprising a segmented pipe with a self-sealing pipe head and connector that ensures reliable, pressure-transmitting connections, featuring a grouting pipe clamp and self-sealing pipe head with circular slurry outlets to reduce pressure loss and facilitate easy installation and reuse.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a commercial connector is used to connect segmented pipe segments, then the connection effect is reliable, but installation is time-consuming and labor-intensive
Solution Approach 1:
The connector is divided into multiple functional segments: a connecting body with internal threading, a separate sealing component, and a fastening mechanism. This segmentation allows for simplified assembly where each component can be independently prepared and then quickly assembled together without complex alignment procedures, reducing installation time while maintaining connection reliability.
Solution Approach 2:
The connector incorporates a self-sealing mechanism where the sealing component automatically engages with the connecting body upon assembly. The design includes self-aligning features and automatic sealing activation that eliminate the need for manual sealing operations or complex adjustment procedures, thereby reducing installation time and labor requirements while ensuring reliable sealing.
2Object-affected harmful factors
If adhesive tape is used to seal the pipe head, then impurities are prevented from entering, but the tape cannot be reused and is pushed away under grouting pressure
Solution Approach 1:
The invention replaces the disposable adhesive tape with a reusable sealing component that can be repeatedly installed and removed. This sealing component is designed to be simple in structure and inexpensive to manufacture, allowing it to be reused multiple times without significant degradation of sealing performance, thereby eliminating the need for continuous replacement of disposable tape.
Solution Approach 2:
The sealing component incorporates dynamic sealing elements that can deform or move in response to grouting pressure. These elements maintain continuous contact with the pipe wall to prevent impurity ingress while withstanding the applied pressure, and can be easily removed and reinstalled for reuse, unlike static adhesive tape that fails under pressure.
3Productivity
If a spherical slurry surface is used during grouting, then grouting is performed, but pressure loss occurs resulting in limited grouting effect
Solution Approach 1:
The invention optimizes the slurry outlet geometry by transitioning from a spherical slurry surface to a streamlined outlet design with optimized curvature. This streamlined shape reduces flow separation and turbulence at the outlet, minimizing energy losses and maintaining higher grouting pressure for improved grouting effectiveness.
Data Source
AI summary
A grouting device for high-coagulability grouting materialsincludes a grouting pipe, a connector and a self-sealing pipe head, wherein one end of the connector is connected with a grouting pump through the grouting pipe, the other end of the connector is connected with the self-sealing pipe head through the grouting pipe, and the grouting pipe is connected with the connector and the self-sealing pipe head in a fixed and sealed mode. The grouting device is easy to install, features reliable connection between the grouting pipe and the connector and the self-sealing pipe head, and can be reused. Because the inner diameter of the connector is consistent with the inner diameter of the grouting pipe, and a slurry outlet on an end cap of the self-sealing pipe head is a circular slurry outlet, pressure loss in the grouting process is effectively reduced, and the grouting effect is good.