| 摘要 |
A gas-fired boiler installation with control of the supply of combustion components, provided with a combustion space that upwardly is in communication with a boiler flue and at the bottom side is confined by a burner bed with atmospheric burners having interposed venturi tubes which upon throughflow by the gas controllably supplied via a valve, draw in primary air. Between the elements of the burner bed, from the bottom side thereof, secondary air can be drawn into the combustion space while the secondary air is controllable in conjunction with the control of the gas supply by a control valve.
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