Two-Cylinder Valve Insert With Releasable Gasket Chamber
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Solution Overview
Problem
Existing valves face challenges in providing a simple construction that ensures secure mounting and replacement of valve seat gaskets, particularly at high pressures, while maintaining effective sealing.
Innovation Solution
A valve design featuring two axially aligned cylinders connected by a releasable screw connection, with a valve seat gasket positioned and fixed by a valve seat gasket chamber that partially surrounds it, allowing easy replacement and secure sealing through a movable piston.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional valve seat mounting structure is used, then the valve can maintain sealing under high pressure, but the valve seat gasket becomes difficult to replace and install
Solution Approach 1:
The valve body is segmented into a first cylinder and a second cylinder that can be separated from each other. The valve seat gasket is mounted in a valve seat gasket chamber formed between these two cylinders, allowing the chambers to be accessed and the gasket to be replaced by separating the cylinders, without requiring complete valve disassembly. This segmentation enables easy maintenance while maintaining sealing integrity during operation.
Solution Approach 2:
A valve seat gasket chamber is introduced as an intermediary structure between the first and second cylinders. This chamber provides a dedicated space for mounting and replacing the valve seat gasket, facilitating easy access and replacement while ensuring proper positioning and sealing. The chamber acts as a mediator that simplifies the replacement process without compromising the sealing function.
2Reliability
If a complex valve construction is used to ensure secure mounting of valve seat gasket, then sealing reliability improves, but device complexity increases
Solution Approach 1:
The valve is divided into modular cylindrical sections (first and second cylinders) that can be easily assembled and disassembled. This segmentation provides a simple yet effective way to secure the valve seat gasket in place while allowing for straightforward maintenance. The modular design reduces overall construction complexity compared to traditional integrated valve structures.
Solution Approach 2:
The valve seat gasket chamber serves multiple functions: it provides a mounting location for the gasket, a space for easy replacement, and a sealing interface between cylinders. This multi-functional design eliminates the need for separate complex mounting mechanisms, thereby reducing device complexity while maintaining reliable sealing.
3Ease of repair
If the valve is designed for easy disassembly to facilitate gasket replacement, then ease of repair improves, but mechanical stability under high pressure may be compromised
Solution Approach 1:
The valve is segmented into two cylindrical sections that can be easily separated for gasket replacement. Despite this segmentation, each cylinder is designed with sufficient structural strength to withstand high pressure when assembled. The segmentation enables easy repair while the individual cylinder designs maintain mechanical stability during operation.
Solution Approach 2:
The valve seat gasket is pre-mounted in the valve seat gasket chamber between the cylinders during assembly. This preliminary mounting ensures proper positioning and secure fixation before the valve is put into service. The pre-positioned gasket maintains mechanical stability under high pressure while allowing for easy replacement by simply separating the cylinders when maintenance is needed.
Data Source
AI summary
A valve 10 for regulating a flow between a first and a second port 16, 18. A valve housing 12 includes a valve chamber 14 connected to the first and second ports 16, 18. A valve insert 26 inserted within the valve chamber 14 comprises a first cylinder 28 connected to a second cylinder 32 and a piston 34 movably arranged within the second cylinder 32. The piston 35 acts against a valve seat gasket 30. The first and said second cylinders 28, 32 are arranged axially aligned and connected by a releasable connection 44. The valve seat gasket 30 is arranged in a valve seat gasket chamber 62 formed between the first and second cylinders 28, 32 and providing a ring opening 80 for engagement of the valve seat gasket 30 with the piston 34.