Purge Gas Feed Control Through Valved Branch Pipes
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Solution Overview
Problem
Conventional storage facilities require multiple flow rate control devices for each main pipe to perform individual control of purge gas feed rates, leading to complexity and inefficiency.
Innovation Solution
A purge system with a single feed controller and multiple nozzles, using a main pipe connected to placing sections through feed paths with open/close valves and orifices, allowing individual control of purge gas feed rates by controlling the open/close states of valves and adjusting flow rates through the main pipe.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple flow rate control devices are provided for each main pipe to perform individual control of purge gas feed rates, then individual control precision is improved, but device complexity increases
Solution Approach 1:
The patent merges multiple flow rate control functions into a single flow rate control device that controls the main pipe. By combining the control of multiple branch pipes under one controller and using switchable feed paths, the system achieves individual control capability without requiring multiple separate flow rate control devices, thus reducing device complexity while maintaining control precision.
Solution Approach 2:
The patent segments the gas supply system into a main pipe and multiple switchable feed paths, each可控 by open/close valves. This segmentation allows the single flow rate control device to manage different gas flow configurations dynamically, enabling individual control of purge gas feed rates to different placing sections without increasing overall device complexity.
2Adaptability or versatility
If multiple flow rate control devices are provided for each main pipe to perform individual control of purge gas feed rates, then individual control capability is improved, but system efficiency deteriorates
Solution Approach 1:
The patent combines multiple control functions into a single flow rate control device that manages the main pipe. The controller coordinates the open/close valves and the single flow rate control device to achieve individual control of purge gas feed rates, improving system efficiency by reducing the number of control devices and simplifying the control architecture.
Solution Approach 2:
The patent implements dynamic switching of feed paths using open/close valves controlled by a controller. This dynamic configuration allows the system to adapt purge gas flow distribution in real-time based on processing requirements, maintaining individual control capability while improving overall system efficiency through centralized control.
3Device complexity
If a single feed controller is used to control multiple placing sections through feed paths with open/close valves, then device complexity is reduced, but control precision may deteriorate
Solution Approach 1:
The patent segments the gas distribution system into multiple switchable feed paths with open/close valves for each placing section. This segmentation allows the single flow rate control device to control gas flow to different sections independently by opening or closing specific valves, maintaining control precision while reducing device complexity.
Solution Approach 2:
The patent introduces open/close valves as intermediaries between the single flow rate control device and multiple placing sections. These valves act as mediators that enable precise control of gas flow distribution to different sections, allowing the single controller to maintain high control precision through coordinated valve operation.
4Ease of operation
If feed paths with open/close valves and orifices are used for gas distribution, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The patent segments the gas distribution system into modular feed paths, each equipped with an open/close valve and orifice. This modular segmentation simplifies operation by allowing independent control of each placing section through its dedicated valve, while the standardized modular design prevents excessive complexity increase.
Solution Approach 2:
The patent designs universal feed paths that can be configured for different placing sections using the same components (orifices, valves, tubing). This universality improves ease of operation through standardized components and procedures, while avoiding complexity increase by reusing the same design pattern across multiple sections.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables reliable and efficient individual control of purge gas feed rates for each placing section using a single controller, simplifying the system and enhancing control precision.
Implementation Method 1
The feed tube may be provided with an orifice to allow purge gas to flow through at a certain flow rate with the pressure of the purge gas (differential pressure before and behind the orifice).
Data Source
AI summary
A purge system includes a main pipe, a feed controller configured to control a flow rate or a pressure of purge gas flowing through the main pipe, feed paths between respective placing sections and the main pipe, at least one open/close valve correspondingly provided to each of the placing sections and configured to switch the flow of purge gas in the feed paths, and a controller configured to control an open/close state of the open/close valve and control the feed controller based on open/close states of all of the open/close valves provided to the main pipe.