Multi-Stage Throttling Valve for Abrasive Fluid Wear
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Solution Overview
Problem
In fluid handling systems, particularly in high-pressure applications like oil and gas production, valves experience premature failure due to wear and erosion, leading to costly refurbishment or replacement and system downtime, as existing valves lack effective solutions for managing high flow rates and abrasive fluids.
Innovation Solution
A valve design featuring a multi-stage throttling section with interchangeable throttling discs, where the first throttling component is made from a hard, wear-resistant material and the second component is more ductile, positioned downstream to prevent cracking and facilitate maintenance, and a separate shut-off mechanism to reduce wear and ensure precise fluid control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single-material throttling component is used, then the valve structure is simpler, but the component experiences premature failure due to wear and erosion in high-pressure abrasive fluid applications
Solution Approach 1:
The patent applies composite materials by combining a hard, wear-resistant material for the first throttling component with a more ductile material for the second throttling component. This composite construction allows each component to perform optimally in its specific functional role: the hard material resists abrasion from high-pressure fluids while the ductile material prevents cracking under stress, thereby resolving the contradiction between durability and structural simplicity.
Solution Approach 2:
The patent segments the throttling component into two distinct parts: a first throttling component made from hard, wear-resistant material and a second throttling component made from more ductile material. This segmentation allows each segment to be optimized for its specific function - the first segment handles wear from abrasive fluids while the second segment provides ductility to prevent cracking - thus improving reliability without requiring an entirely complex redesign of the whole component.
2Object-affected harmful factors
If a hard, wear-resistant material is used for the throttling component, then wear and erosion are reduced, but the component becomes prone to cracking
Solution Approach 1:
The patent applies local quality by assigning different material properties to different parts of the throttling system. The first throttling component is made from hard, wear-resistant material specifically to resist abrasion from high-pressure fluids, while the second throttling component is made from more ductile material specifically to prevent cracking. Each location receives the material quality most suited to its local functional requirements, resolving the contradiction between wear resistance and crack resistance.
3Productivity
If the valve components are designed for high-pressure throttling, then fluid flow control is improved, but maintenance and refurbishment become costly and time-consuming
Solution Approach 1:
The patent segments the throttling system into interchangeable components (first and second throttling components) that can be independently replaced. This segmentation allows maintenance personnel to replace only the worn component rather than the entire valve assembly, significantly reducing maintenance time and cost while preserving the high-pressure throttling functionality of the remaining components.
Data Source
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AI summary
Provided is a valve, including an in-line flow passage, a shut-off mechanism, and a multi-stage throttling section disposed in the in-line flow passage. Further provided is an in-line valve, including a flow control component and a sealing component, wherein the flow control component and the sealing component are separate from one another.