Gas Valve Low-Flow Channel Adjustment for Variable Flow Control
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Solution Overview
Problem
Existing gas valves lack adjustable low-flow channels, limiting their adaptability to meet varying low-flow requirements, and existing designs do not allow for efficient flow adjustments.
Innovation Solution
A gas valve with an adjustable low-flow channel, featuring a low-flow adjusting rod within a low-flow gas channel, allowing for adjustable flow gaps through a movable low-flow adjusting rod and sealing mechanisms to control gas flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed low-flow channel is provided in the valve, then the valve can operate in a low-flow state, but the flow rate cannot be adjusted once the valve assembly is completed
Solution Approach 1:
The patent applies the dynamics principle by making the low-flow channel adjustable through a movable adjusting rod that can be positioned at different locations within the channel. This allows the flow rate to be dynamically changed after valve assembly by moving the rod to different positions, transforming a previously static channel into an adjustable one without requiring complex external mechanisms
Solution Approach 2:
The adjusting rod is designed to be self-adjusting within the low-flow channel, where the rod itself serves as the adjustment mechanism. The rod can be manually positioned to create different flow gaps, allowing the valve to self-regulate its flow rate without requiring additional control systems or complex external devices
2Ease of operation
If a low-flow adjusting rod is arranged in the low-flow gas channel to adjust flow gap, then the flow rate can be adjusted as needed, but the valve structure becomes more complex
Solution Approach 1:
The adjusting rod serves multiple functions: it acts as a flow control element, a positioning element, and an adjustment mechanism all in one. This multi-functional component allows flow rate adjustment without requiring separate control mechanisms, reducing overall structural complexity while improving ease of operation
Solution Approach 2:
The patent changes the physical parameter of the flow gap by moving the adjusting rod to different positions within the low-flow channel. This simple parameter change (rod position) directly controls the flow rate, providing easy adjustment without complex control systems or multiple components
Data Source
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AI summary
The present invention discloses a gas valve with an adjustable low-flow channel. The gas valve includes: a valve body, where a gas inlet cavity, a transition cavity, and a gas outlet cavity which are sequentially connected are formed in the valve body, and the valve body includes a gas outlet communicated with the gas outlet cavity; a push rod, arranged in the gas outlet cavity and capable of linearly moving along an axial direction of the gas outlet cavity; a solenoid valve, arranged at one end of the valve body close to the gas inlet cavity. The solenoid valve includes a valve core capable of linearly moving along an axial direction of the gas inlet cavity and a sealing block connected to the valve core. The sealing block is configured to separate the gas inlet cavity from the transition cavity. A first sealing ring configured to hermetically engage with the push rod is arranged in the valve body, and the first sealing ring is configured to separate the transition cavity from the gas outlet cavity. A low-flow gas channel communicating the transition cavity and the gas outlet is formed in the valve body. A low-flow adjusting rod is arranged in the low-flow gas channel, and a flow gap is formed between the low-flow adjusting rod and an inner wall of the low-flow gas channel. The low-flow adjusting rod is movably arranged in the low-flow gas channel to adjust a size of the flow gap.