Regulating mechanism for regulating the flows from a plurality of gas outlets in a fuel gas valve
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Solution Overview
Problem
Existing fuel gas valves with multiple burners require complex and costly independent regulating mechanisms to synchronize gas flows from multiple outlets, leading to difficulties in achieving synchronous control and increased fault susceptibility.
Innovation Solution
A regulating mechanism driven by a single actuator, utilizing a presser plate assembly and regulating rods with conical heads, synchronizes gas flows from multiple outlets through a coaxial arrangement, with adjustable pressing heads to compensate for manufacturing errors and provide independent gas supply to each burner.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If two or more independent regulating mechanisms are used to regulate flows from multiple gas outlets, then each outlet can be regulated independently, but the structure becomes complex and the cost increases
Solution Approach 1:
The patent combines multiple regulating mechanisms into a single integrated mechanism. One actuator drives a presser plate assembly that simultaneously presses multiple regulating rods, each controlling a different gas outlet. This merging approach maintains the ability to independently regulate each outlet while significantly reducing structural complexity and cost compared to using separate independent mechanisms for each outlet.
Solution Approach 2:
The presser plate assembly is segmented into multiple pressing heads, each corresponding to a different regulating rod and gas outlet. This segmentation allows independent regulation of each outlet through a unified structure, where each pressing head can be independently adjusted while being driven by a common actuator, thus balancing independent control capability with structural simplicity.
2Ease of operation
If two or more independent regulating mechanisms are used, then each outlet can be regulated separately, but synchronous control becomes more difficult and fault susceptibility increases
Solution Approach 1:
By merging multiple regulating mechanisms into one integrated system driven by a single actuator, the patent ensures synchronous control of all gas outlets. When the actuator moves, it simultaneously actuates all regulating rods through the presser plate assembly, guaranteeing synchronized regulation. This unified approach eliminates the coordination problems and increased fault susceptibility associated with multiple independent mechanisms.
Solution Approach 2:
The presser plate assembly acts as an intermediary mechanism that translates the motion of a single actuator into simultaneous motion of multiple regulating rods. This intermediary structure ensures that all outlets are regulated synchronously while maintaining the ability to independently adjust each outlet's flow, thus improving both synchronous control capability and overall system reliability.
3Device complexity
If a single actuator is used to drive multiple regulating rods, then the structure is simplified, but manufacturing errors may cause uneven pressing forces
Solution Approach 1:
The presser plate assembly incorporates adjustable pressing heads with independent positioning capabilities. Each pressing head can be locally adjusted to compensate for manufacturing variations in the regulating rods or plate itself. This local quality adjustment ensures uniform pressing forces across all regulating rods despite inherent manufacturing tolerances, while maintaining the overall simplicity of the single-actuator structure.
Solution Approach 2:
The pressing heads are designed with adjustable positions along the regulating rods, allowing dynamic adaptation to manufacturing variations. This adjustability enables the system to compensate for uneven pressing forces caused by manufacturing errors, ensuring consistent regulation performance across all gas outlets while preserving the structural simplicity of using a single actuator.
Data Source
AI summary
The present invention discloses a regulating mechanism regulating the flows from a plurality of gas outlets in a fuel gas valve, comprising an actuator, a push rod, a presser plate assembly, regulating rods and a valve body. Wherein the valve body has a plurality of gas outlets, a regulating rod is provided in each regulating port which exists between the gas inlet and each gas outlet, a resetting device is provided between each regulating rod and the valve body, and the actuator drives the push rod which is around by the regulating ports to move along the axis. The push rod causes the presser plate assembly to move up and down to press or relax the regulating rods and simultaneously change the degree of opening between the head portion of each regulating rod and the corresponding regulating port so that the flow from each gas outlet changes synchronously.