Pipe Joint Seal Layout to Shorten Socket Length and Reduce Turbulence
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Solution Overview
Problem
Conventional pipe joints result in a longer socket length and turbulent flow due to the intrusion of push ring, bolt, and joint rod into the spigot and socket, leading to inefficiencies in sealing and increased time for joining pipes.
Innovation Solution
A pipe joint design that accommodates a seal body, push ring, and spacer within the socket and spigot interface, preventing these components from entering the spigot and socket ends, thus shortening the socket length and reducing the formation of turbulent flow by maintaining a predetermined interval between the push ring and socket deep end.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the push ring, bolt, and joint rod are provided between the spigot and socket ends, then the sealing function is ensured, but the socket length becomes excessive
Solution Approach 1:
The patent extracts the push ring, bolt, and joint rod from the space between the spigot and socket ends, and relocates them to the accommodation space formed between the spigot outer circumference and socket inner circumference. This extraction eliminates the interval that would otherwise be required at the ends, thereby shortening the socket length while maintaining the sealing function through the seal body.
Solution Approach 2:
The patent transitions the arrangement of sealing components from a longitudinal distribution (along the pipe axial direction at the ends) to a radial distribution (within the accommodation space between spigot and socket). This dimensional change allows the sealing components to be positioned without extending the socket length in the axial direction.
2Reliability
If the push ring, bolt, and joint rod enter between the spigot and socket ends, then the sealing structure is formed, but turbulent flow occurs in the joint portion
Solution Approach 1:
The patent extracts the push ring, bolt, and joint rod from the joint portion space that would create turbulent flow, and relocates them to the accommodation space. This removal eliminates the stepped portion and protrusions that cause turbulence, allowing smooth fluid flow through the joint while the seal body maintains the sealing structure.
3Reliability
If the interval between spigot top end and socket deep end face is increased to accommodate components, then the sealing function is achieved, but the joining work requires more time and effort
Solution Approach 1:
The patent extracts the sealing components (push ring, bolt, joint rod) from the longitudinal interval at the ends and relocates them to the radial accommodation space. This eliminates the need for mortar filling to extend the interval, thereby reducing joining work time and effort while maintaining the sealing function.
Solution Approach 2:
The patent discards the conventional practice of using mortar material to fill the interval between spigot and socket ends. By recovering and utilizing the accommodation space between the spigot outer circumference and socket inner circumference, the patent eliminates the time-consuming mortar filling process while achieving the same sealing objective.
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
The design effectively shortens the socket length and minimizes turbulent flow, enhancing sealing efficiency and reducing the complexity of pipe joining processes.
Implementation Method 1
an annular rubber seal body 206 for sealing the gap between the inner circumference of the socket 202 and the outer circumference of the spigot 204
Implementation Method 2
a push ring 208 for pressing the seal body 206 into the seal body accommodation space via a split ring 207 to keep the seal body 206 in a compressed state
Data Source
AI summary
A pipe joint in which a seal body and a spacer are mounted from the insides of pipes, wherein: a spigot of one pipe is inserted into a socket of the other pipe; and an annular accommodation space is formed between the inner circumference of the socket and the outer circumference of the spigot. Inside the accommodation space are accommodated: a seal body for sealing the gap between the socket and the spigot; a push ring that presses the seal body to keep the seal body in a compressed state; and a spacer that maintains the interval between the push ring and the deep end of the socket in the pipe axial direction.