Reinforced Choke Valve Housing for High Backpressure Loads
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Solution Overview
Problem
Hydraulic choke valves face excessive axial loading due to backpressure, leading to potential failure of the valve body and actuator components, requiring costly modifications and downtime for repair.
Innovation Solution
A detachably connected reinforcement member is attached to the valve body and actuator housing, which absorbs excessive axial loading and increases the maximum pressure the valve can handle before failure, using a plate section with openings to distribute the load and prevent catastrophic failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the valve body and actuator components are designed to handle excessive axial loading from backpressure, then the strength and reliability improve, but the weight, cost, and complexity increase
Solution Approach 1:
The patent applies composite construction by combining the valve body material with a reinforcement member material (such as a strengthening ring or plate) to create a hybrid structure. This composite approach allows the valve body to achieve higher strength and reliability against excessive axial loading from backpressure without requiring the entire valve body to be made from heavy-duty material, thus reducing overall weight while improving failure resistance.
2Reliability
If larger, more robust components are used to handle backpressure loads, then the reliability improves, but the cost increases
Solution Approach 1:
The patent applies local quality by placing reinforcement members (such as strengthening rings or plates) only at specific critical locations on the valve body where stress concentration occurs due to backpressure. This localized reinforcement approach provides the necessary reliability and failure resistance at the actuator and valve body interface without requiring the entire component to be oversized, thereby reducing material costs and manufacturing complexity.
3Strength
If the valve components are designed for high pressure承受能力, then the strength improves, but the device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the reinforcement function into separate, modular components such as reinforcement members, strengthening rings, or plates that can be independently designed, manufactured, and installed. This segmented approach allows the valve body to achieve high axial load capacity through distributed reinforcement rather than requiring a monolithic complex structure, simplifying design and manufacturing while maintaining strength.
4Reliability
If shearable relief means are used to prevent damage from excessive backpressure, then the reliability improves, but the ease of repair worsens due to required valve shutdown and component replacement
Solution Approach 1:
The patent applies beforehand cushioning by incorporating reinforcement members (such as strengthening rings or plates) that are pre-installed on the valve body to absorb and distribute excessive axial loads from backpressure before they can cause damage to the actuator or valve body. This preventive reinforcement structure eliminates the need for shearable relief means that require shutdown and replacement, allowing the valve to continue operating during backpressure events and significantly reducing maintenance downtime.
Data Source
AI summary
A choke valve comprising: a body having an axial through hole and a radial entry port; a valve seat coaxially housed in the body axial through hole on a first side of the radial entry port; a pressure balanced valving member axially reciprocable within the body axial through hole between a first sealing position bearing against the valve seat and a second position spaced away from the seat; an actuator housing operably connected to the valving member; and a detachably connected reinforcement member detachably connected to the actuator housing and increasing the axial load that the actuator housing can take before failure of the actuator housing.