A METHOD OF MIXING AT LEAST TWO GASES |
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| 申请号 | US15783754 | 申请日 | 2017-10-13 | 公开(公告)号 | US20180239374A1 | 公开(公告)日 | 2018-08-23 |
| 申请人 | Airgas, Inc.; | 发明人 | Mark Joseph DOORE; Bradley Wallace; Gregory Caniglia; | ||||
| 摘要 | A method of mixing at least two gases is provided. This method includes providing a mixture composition control, including a predetermined composition input and a composition trim input. Providing N gas flow meters, including a N gas flows, and N desired gas flow rates determined by the mixture composition control, wherein N is 3 or more. Mixing the N gas flows, thereby producing a mixed gas flow at the predetermined composition and at a line pressure. Configuring the N flow meters to adjust the N gas flows to maintain the line pressure at a predetermined value, while maintaining the predetermined composition. And adjusting the composition trim input to vary the composition of the mixed gas, without modifying the predetermined composition input. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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