Flow-Rate Control Valve with Integrated Exhaust for Corrosion Prevention
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Solution Overview
Problem
Conventional flow-rate control valves require a large number of components and increased assembly time, leading to higher manufacturing costs and reduced ease of maintenance, while also being prone to corrosive damage from permeating gases.
Innovation Solution
A compact flow-rate control valve design featuring a lower casing, valve seat, reciprocating drive part, upper casing, and middle casing with a shaft body and flange, which reduces the number of components and allows for easy gas exhaust through a communication portion and exhaust groove, enabling precise control of liquid or fluid flow rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a converting mechanism with externally threaded shaft body and internally threaded slider is used, then the valve is remotely controllable, but the number of components increases and assembly time increases
Solution Approach 1:
The patent integrates the converting mechanism components into a unified structure where the shaft body and slider are combined with the valve body, reducing the total number of separate components while maintaining the remote controllability function through the motor-driven mechanism
2Extent of automation
If a converting mechanism with externally threaded shaft body and internally threaded slider is used, then the valve is remotely controllable, but assembly time increases
Solution Approach 1:
The integrated design combining the converting mechanism with the valve body reduces the number of separate assembly steps, allowing for faster assembly while preserving the remote controllability through the motor-driven shaft mechanism
3Manufacturing precision
If gases permeate through the valve seat, then the valve controls flow rate, but corrosive damage occurs to components
Solution Approach 1:
The patent incorporates an exhaust groove that channels permeating gases away from sensitive components and directs them toward an exhaust port, converting the potentially harmful gas permeation into a controlled exhaust flow that prevents corrosive damage while maintaining flow rate control functionality
4Manufacturing precision
If gases permeate through the valve seat, then the valve controls flow rate, but gas-induced corrosion and deformation occur
Solution Approach 1:
The exhaust groove structure converts harmful gas permeation into a beneficial exhaust pathway, directing gases away from structural components to prevent corrosion-induced deformation while preserving the precise flow rate control function
Data Source
Figure 1
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Figure 4~5
AI summary
The present invention provides a flow-rate control valve (1) that allows for manufacturing cost reduction and has a compact size with improved ease of maintenance. The flow-rate control valve (1) includes a lower casing (4) provided with a channel (41,42) that leads a liquid and a fluid and with a valve seat (43A), a valve body (7) that controls, in conjunction with the valve seat, the flow rate of the liquid and the fluid that pass through the channel (41,42), a reciprocating drive part (5A) that moves the valve body (7) closer to or away from the valve seat (43A), and an upper casing (2) that houses the reciprocating drive part (5A).