Gas Valve With Segmented Inlet Holes For Multi-Gas Adaptability
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Solution Overview
Problem
Existing gas valves require replacement when switching between different gas sources, such as liquefied petroleum gas and natural gas, due to differing gas characteristics, leading to increased change costs and operational risks, especially for non-professionals.
Innovation Solution
A gas valve design featuring a valve body with a chamber, a rotatable valve core, and an auxiliary inlet system with an adjusting mechanism, comprising multiple inlets and a screw for adjusting gas flow rates, allowing alignment of either the primary inlet hole or auxiliary inlet hole with the inlet to adapt to different gas sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a gas valve is designed with a single inlet passage and fixed fire holes for specific gas sources, then the manufacturing precision can be controlled, but the adaptability to different gas sources is poor
Solution Approach 1:
The inlet passage is segmented into multiple independent inlet passages (first inlet passage, second inlet passage, etc.), each capable of being independently connected to the valve core. This segmentation allows the valve to select different inlet passages based on the gas source being used, thereby improving adaptability while maintaining reasonable manufacturing precision for each individual passage.
Solution Approach 2:
The valve core is designed to be rotatable relative to the valve body, dynamically changing the alignment between the valve core's fire holes and the inlet passages. This dynamic adjustment mechanism enables the same valve to adapt to different gas sources by rotating the valve core to different positions, eliminating the need for high precision fixed positioning for multiple gas types.
2Adaptability or versatility
If the gas flow rate is adjusted by rotating the valve core to align different fire holes with the inlet passage, then the adaptability to different gas sources is improved, but the device complexity increases
Solution Approach 1:
The valve core serves multiple functions: it acts as both a flow control element and a selection mechanism for different gas sources. By incorporating multiple fire holes at different angular positions and multiple inlet passages, the single valve core can handle different gas types and flow rates without requiring additional components, thereby improving adaptability while controlling complexity.
Solution Approach 2:
The invention merges the functions of flow rate adjustment and gas source selection into a single integrated mechanism. The rotatable valve core combines multiple fire holes for different gas sources with the flow control function, eliminating the need for separate adjustment mechanisms and reducing overall device complexity.
3Reliability
If professionals perform the change and adjustment of gas valves, then the reliability of operation is improved, but the ease of operation deteriorates
Solution Approach 1:
The valve incorporates clear visual indicators (such as marked positions on the valve core or valve body) that guide users to the correct rotational position for different gas sources. This self-service design allows non-professionals to correctly identify and select the appropriate configuration without requiring professional knowledge, thereby improving ease of operation while maintaining reliability through intuitive guidance.
Data Source
AI summary
A gas valve includes a valve body and a valve core; the valve core has a center hole and an inlet hole defined in the peripheral surface of the valve core and capable of aligning with the inlet of the valve body and in communication with the center hole of the valve core; an auxiliary inlet with two ends is defined in the valve body linking the inlet with the chamber of the valve body; an auxiliary inlet hole is defined in the peripheral surface of the valve core and capable of aligning with the auxiliary inlet, the auxiliary inlet hole is in communication with the center hole of the valve core, and the auxiliary inlet hole is defined away from the inlet hole. The gas valve with the separated inlet hole and auxiliary inlet hole can reduce the operational error during the adjustment of the gas flow rate.