Multistage low concentration standard gas generator
The utility model discloses a multistage low concentration standard gas generator, include main gas circuit pipe, the subassembly that admits air, one -level dilution subassembly and at least a set ofsubordinate dilution subassembly, the one -level is diluted the subassembly and is included quantita...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model discloses a multistage low concentration standard gas generator, include main gas circuit pipe, the subassembly that admits air, one -level dilution subassembly and at least a set ofsubordinate dilution subassembly, the one -level is diluted the subassembly and is included quantitative air supply pipe, one -level air receiver and the second air pump that communicates in proper order, and on one -level dilution subassembly both ends were connected to the main gas circuit pipe in the subassembly low reaches of admitting air respectively, on subordinate's dilution subassembly was connected to the main gas circuit pipe in one -level dilution subassembly low reaches, it was including the dosing pipe and the subordinate's air receiver that communicate in proper order. The technical scheme of the utility model beneficial effect lie in: the problem of low concentration standard gas is on -the -spot to be taken place is solved, can multistagely set up the standard gas who produces required ppm, ppb c |
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