Slide Valve Coupling for Replaceable Filter Sealing Heads
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Solution Overview
Problem
Existing filter systems with slide valves face challenges in easily exchanging seals, leading to difficulties in maintenance and replacement, which can result in inefficiencies and increased waste during filter element exchanges.
Innovation Solution
A filter system design featuring a slide valve with a coupling mechanism between the valve rod and sealing head, providing both axial and radial securing actions, allowing for the simple replacement and insertion of the sealing head without damage, ensuring secure assembly and easy maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the slide valve is designed with integrated seals that remain in the housing, then the slide valve is securely retained in the housing, but the seals cannot be easily exchanged during maintenance
Solution Approach 1:
The slide valve is divided into separate components: the valve body with locking means that remains in the housing, and the sealing head with seals that can be removed and replaced. The coupling connects these segments, allowing the sealing head to be exchanged while the valve body stays secured in the housing.
Solution Approach 2:
The coupling between the valve rod and sealing head is designed to be dynamically adjustable, allowing for easy assembly and disassembly of the sealing head while maintaining secure connection during operation. This enables maintenance personnel to replace seals without removing the entire slide valve assembly.
2Ease of operation
If the coupling between valve rod and sealing head provides strong axial and radial securing, then the assembly is secure against distortions and tolerances, but the sealing head becomes difficult to replace
Solution Approach 1:
The coupling mechanism is segmented into separate axial and radial securing functions. The axial securing is provided by the valve rod connection to the coupling, while radial securing is provided by the coupling structure itself. This segmentation allows the sealing head to be easily replaced while maintaining strong assembly strength during operation.
Solution Approach 2:
The coupling design allows for dynamic insertion and removal of the sealing head through a simple locking mechanism. During operation, the coupling provides strong axial and radial securing to accommodate distortions and tolerances, while during maintenance, the locking mechanism can be easily released to replace the sealing head.
3Ease of repair
If the locking means prevents the slide valve from being pulled out of the housing, then the slide valve remains securely in position, but the sealing head cannot be removed for seal replacement
Solution Approach 1:
The slide valve assembly is segmented into the valve body with locking means that remains secured in the housing, and the removable sealing head containing the seals. This segmentation allows the sealing head to be accessed and replaced without affecting the position stability of the valve body in the housing.
Solution Approach 2:
The coupling between the valve rod and sealing head is designed with dynamic locking and unlocking capabilities. The locking means secures the valve body in the housing, while the coupling allows the sealing head to be dynamically removed and reinstalled, providing both position stability and maintenance accessibility.
Data Source
AI summary
A filter system is provided with a housing provided with a cover. The housing has a raw liquid inlet, a clean liquid outlet, and a liquid drain. A filter element is provided that separates a raw side from a clean side. A slide valve with a valve rod and a sealing head is provided, wherein the sealing head is arranged such that the liquid drain of the housing is closable but openable. A coupling is arranged between the sealing head and the valve rod, providing an axial securing action of the valve rod at the sealing head and a radial securing action, separate from the axial securing action, of the valve rod at the sealing head. A slide valve for such a filter system as well as a sealing head and a valve rod for such a slide valve are provided.