Gas ratio proportioning valve, multi-gas ratio proportioning combination valve and gas proportioning system

A technology of proportioning valves and gases, which is applied in the direction of multi-way valves, valve devices, engine components, etc., can solve the problems of reduced proportioning accuracy, inconvenient use, and difficult production and debugging, and achieves convenient production and debugging, high practical value, Intuitive and convenient effect of debugging
CN102128285BActive Publication Date: 2013-01-02GENTECSHANGHAI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GENTECSHANGHAI
Publication Date
2013-01-02

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Abstract

The invention discloses a gas ratio proportioning valve, a multi-gas ratio proportioning combination valve and a gas proportioning system. The proportioning valve consists of a valve body and a valve disk, wherein the valve body is provided with three cavities of which the centers are coaxially communicated, and the valve disk is provided with flow control channels. The valve disk moves in the cavities of the valve body, and the complete linear relationship of the concentration of mixed gas with the shift of the valve disk is realized. The multi-gas ratio proportioning combination valve consists of a plurality of gas ratio proportioning valves, wherein all main gas inlets are communicated, all mixed gas outlets are communicated, and auxiliary gases enter from the respective auxiliary gas inlets. The gas proportioning system comprises the gas ratio proportioning valve or the multi-gas ratio proportioning combination valve. According to the invention, the simple structures of the valve body and the valve disk are combined, the widths of the outlets of the main and auxiliary control channels in the valve disk are matched with the densities of the gases which need to be proportioned, and high-precise mixed bi- and multi-gas can be obtained through the control of only one button without a gas analyzer. The invention has high practical value and can be broadly used in mixed gas proportioning industry.
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Description

technical field

[0001] The invention relates to a gas proportioning valve for a gas mixing system. In particular, the present invention relates to the use of a unique gas proportioning valve to well control the proportioning accuracy of two gases in the gas mixing system through an external adjustment knob and dial. Background technique

[0002] Many fields such as industry and medical treatment often require the use of mixed gases, such as industrial mixed gas shielded welding, different concentrations of oxygen-enriched gases for medical breathing, or mixed gas anti-corrosion in the food packaging industry. The generation of mixed gas requires precise proportioning of two or more simple gases to produce a mixed gas with an accurate concentration.

[0003] At present, the gas mixing system is mostly used. The main air intake is throttled by the fixed hole, and the auxiliary air intake is controlled by a regulating valve. The proportioning concentration cannot be directly i...

Claims

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