Preheating type gas multi-stage mixing device

Abstract

The invention discloses a preheating type gas multi-stage mixing device which comprises a plurality of gas cylinders for gas to be mixed, a plurality of gas input branches, a multi-stage gas mixing chamber, and a mixed gas output pipeline; the gas cylinders for gas to be mixed are used for containing the gas to be mixed; the plurality of gas input branches are used for conveying to-be-mixed gas into the gas cylinders; the multi-stage gas mixing chamber comprises a first-stage mixing chamber, a second-stage mixing chamber, a third-stage mixing chamber and a gas slowing chamber which are communicated in sequence, and the gas cylinders are respectively communicated with the first-stage mixing chamber through the gas input branches; and the mixed gas output pipeline is communicated with the tail end of the gas slowing chamber and is used for outputting mixed gas. The purpose of dynamic and uniform mixing is achieved through precise control and multi-stage mixing, use is safe and reliable,dynamic and uniform mixing of various gases can be achieved, and the gas mixing uniformity is improved.

Description

technical field [0001] The invention relates to the technical field of gas mixing, in particular to a preheating gas multi-stage mixing device. Background technique [0002] Gas mixing is widely used in industrial production and scientific research. The mixing uniformity and mixing accuracy of gas have a profound impact on the preparation of multi-component mixed gas, the preparation of food packaging gas, and the treatment of flammable and toxic gases in industry. Combustion in porous media In premixed combustion, the gas mixing uniformity is also of great significance to improve the combustion efficiency of fuel and reduce the emission of pollutants. [0003] In addition, high-concentration combustible gas can become low-concentration gas after mixing with air. Scholars and experts at home and abroad have done a lot of experimental research on the explosion characteristics and combustion characteristics of low-concentration gas. The accuracy and basis of these experiments ...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a preheating multi-stage gas mixing device with simple structure, convenient installation and uniform mixing of different gases, which overcomes the safety hazard of gas mixing in the external circulation system of the delivery pipeline and the uniform gas mixing of the built-in stirring system of the high-pressure gas cylinder. Insufficient degree and other problems of complex structure of gas mixing device and poor gas mixing

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