Gate Valve Sealing Ring Flow Guide Against Jamming and High Torque
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional valves used for storing and dispensing phosphorous pentasulfide are prone to jamming, require high torque for closure, and are not durable, leading to hazardous conditions and potential exposure to the hazardous substance, with moisture ingress causing further issues due to the chemical reactivity of phosphorous pentasulfide.
Innovation Solution
A sliding gate valve design with a valve housing, gate, and dual sealing rings that allow for easy sliding and sealing, along with a drive assembly that requires minimal rotational force to open and close, and a flow guide to prevent material ingress between the sealing rings, enhancing durability and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional valves are used for storing and dispensing phosphorous pentasulfide, then the valve can perform basic opening and closing functions, but the valve becomes jammed and requires high torque to close, leading to hazardous conditions and reduced reliability
Solution Approach 1:
The sealing system is segmented into multiple sealing rings positioned at different locations (upstream sealing ring, downstream sealing ring, and intermediate sealing ring) rather than using a single sealing mechanism. This segmentation distributes the sealing function across multiple components, preventing material buildup at a single point and reducing jamming risks while maintaining reliable sealing without requiring excessive closure torque
Solution Approach 2:
A flow guide is introduced as an intermediary component between the sealing rings and the material flow path. The flow guide directs material flow away from the sealing ring interfaces, preventing material accumulation that would cause jamming and high torque requirements, thereby improving both ease of operation and reliability
2Duration of action of stationary object
If conventional valves are used, then the valve structure is simple, but the valve is not durable and requires frequent maintenance and repair under harsh conditions
Solution Approach 1:
The valve sealing system is divided into multiple independent sealing rings (upstream, downstream, and intermediate) that can be separately maintained or replaced. This segmentation allows for targeted maintenance of only the affected sealing components rather than replacing the entire valve assembly, extending overall valve service life while maintaining manageable structural complexity
Solution Approach 2:
The flow guide is designed to preliminarily direct material flow away from critical sealing interfaces before material can accumulate and cause damage. This preliminary flow management prevents material buildup that would lead to jamming and premature valve failure, thereby extending service life without requiring complex additional mechanisms
3Reliability
If conventional valves are used, then the valve can seal the passage, but material can ingress between sealing rings, causing jamming and hazardous conditions
Solution Approach 1:
The flow guide serves as an intermediary structure that actively directs material flow away from the sealing ring interfaces. By positioning the flow guide to guide material away from the space between sealing rings, it prevents material ingress that would cause jamming and hazardous conditions, thereby improving sealing effectiveness without introducing harmful factors
Solution Approach 2:
The sealing system is segmented into multiple sealing rings with the intermediate sealing ring positioned between the upstream and downstream sealing rings. This segmentation creates multiple sealing barriers and, when combined with the flow guide, prevents material from penetrating between sealing rings, enhancing sealing effectiveness and eliminating the harmful effect of material ingress
Data Source
AI summary
A valve and associated components and methods, and a container including such a valve. The valve can include a flow guide to guide flow of material away from a sealing engagement between sealing members of the valve. The flow guide assists in preventing ingress of material between the sealing members to maintain proper function of the valve.