Multiple gas blending system
A mixing system and gas technology, applied in the direction of gas and gas/vapor mixing, mixer, mixing method, etc., can solve the problem of uneven concentration of mixed gas, and achieve easy movement and replacement of parts, uniform concentration, accurate and stable composition Effect
Inactive Publication Date: 2016-11-02
液化空气(中国)研发有限公司
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Problems solved by technology
[0003] Aiming at the problem of uneven concentration of mixed gas mentioned above, the present invention provides a multi-element gas mixing sy
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[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0017] Such as figure 1 As shown, the multi-component gas mixing system includes a flow control system 16 and a mixing system 17, wherein the flow control system 16 includes at least two single gas branches connected in parallel, and is connected to all single gas branch outlets, and Transport all single gases to the input main gas circuit 7 of the mixing system, and each single gas branch is provided with an air intake connection port 1 connected to a single gas source, a first stop valve 2, and a filter in sequence along the direction of the intake air flow 3. The flow control meter 4, the first one-way stop valve 5 and the second stop valve 6, the flow control meter is connected with the computer system, and the mixing system 17 includes a static mixer connected to the input main gas path 7 along the intake air flow direction. Distributor 8, third c...
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The invention discloses a multiple gas blending system, which comprises a flow rate control system and a blending system. The flow rate control system includes at least two single gas branch paths which are connected in parallel, and an input main gas path which is connected to outlet ends of all single gas branch paths and is used for transporting all single gases to the blending system. A gas inlet connection port, a filter, a flow rate control meter, a first one-way stop valve and a second one-way stop valve are successively disposed on each single gas branch path in the input air flow direction. The flow rate control meter is connected to a computer system or a programmable logic controller. The blending system includes a static blender which is connected to the input main gas path, a flow rate meter which is connected to the static blender through a pipeline, and a blended gas outlet. The multiple gas blending system improves mixing precision of multiple gas and can control the difference between actual concentration and preset concentration of each component in the blended gas to be within the range of +/- 2.0% of the preset concentration. The system is used for mixing and blending flammable gases during flame cutting or protective gases during welding.
Description
technical field [0001] The invention relates to a gas mixing system, especially a gas mixing system with high mixing precision. Background technique [0002] In industrial production and modern medical treatment, it is often necessary to mix two or more gases for use, such as binary mixed gas, ternary mixed gas and quaternary mixed gas required for industrial mixed gas shielded welding, mainly argon As the basic components, add one or more of inert gas, reducing gas and oxidizing gas respectively. The type and composition of the mixed gas are different, and the application effect is also very different. When a single gas is used as the gas source and mixed through pipelines for welding or cutting, more than two gases need to be precisely proportioned to obtain a mixed gas with a definite and stable concentration. At present, there are many kinds of gas mixing devices. The Chinese invention patent "A Gas Proportioning Valve, Multiple Gas Proportioning Combination Valve and ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B01F3/02B01F3/20B01F5/06B01F15/02B01F15/04B01F23/10B01F23/70
CPCB01F23/19B01F23/703B01F25/42B01F35/83
Inventor 周昀黄巍
Owner 液化空气(中国)研发有限公司