Gate Valve Slide Guide for Radial Seal Replacement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Gate valves used in blast furnaces experience high wear due to constant exposure, necessitating frequent maintenance to ensure gas-tight shut-off, which is complicated by the need to disassemble the slide housing to replace the slide seal.
Innovation Solution
The slide guide is connected to the slide housing via a flange connection, allowing it to be removed radially, enabling the slide guide and seal to be replaced without disassembling the housing, with guide halves providing a double-acting seal and axial support for simplified maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the slide plate is arranged between the upper part of the housing and the lower part of the housing, then the housing forms a slide guide, but the housing must be disassembled to replace the slide seal
Solution Approach 1:
The slide guide is segmented from the housing and formed as a separate component (slide guide body) that can be independently removed. This segmentation allows the slide guide to be detached radially from the housing without disassembling the housing structure, enabling easy replacement of the slide seal while maintaining a integrated housing design.
2Reliability
If the slide seal is arranged in a seal receptacle formed in the housing upper part, then the seal is protected, but the housing must be disassembled to access the seal for maintenance
Solution Approach 1:
The seal receptacle is integrated with the slide guide body as a unified component rather than being formed directly in the housing. This allows the entire slide guide assembly containing the seal receptacle to be removed as one unit, providing both seal protection within the receptacle and easy accessibility for maintenance through radial removal.
Solution Approach 2:
The slide guide body acts as an intermediary component between the housing and the slide seal. It provides a protected environment for the seal through the seal receptacle while simultaneously serving as a removable carrier that facilitates easy access to the seal for maintenance without requiring housing disassembly.
3Reliability
If frequent maintenance is required to ensure gas-tight shut-off, then reliability is maintained, but operational time is lost due to complex disassembly procedures
Solution Approach 1:
The slide guide is designed as a separable component that can be quickly removed radially from the housing, enabling frequent maintenance of the slide seal to ensure gas-tight shut-off without time-consuming disassembly procedures. This segmentation allows rapid access to the seal for inspection and replacement.
Solution Approach 2:
The slide guide is pre-configured with the seal receptacle and sealing elements in a ready-to-install arrangement. This preliminary preparation allows the maintenance personnel to simply remove the entire slide guide assembly, replace the seal, and reinstall the complete assembly without performing complex intermediate steps, thereby minimizing operational time loss.
Data Source
Figure 1~2
Figure 3~4
Figure 5~7
AI summary
The invention relates to a gate valve (20) comprising a valve disk (32) which can move in a valve guide (29) in a valve housing (26) between a closing position and an open position, the valve guide (29) being provided with a valve seal for achieving a gas-tight closing position, the valve guide (29) being connected to the valve housing (26) via a flange connection such that the valve guide (29) can be removed from the valve housing (26) radially in relation to a flow axis of the gate valve (20).