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Patent Searching and Data


Title:
CONTROL DEVICE FOR AUTOMATIC SWITCHING OF KIND OF COMBUSTION GAS
Document Type and Number:
Japanese Patent JP2001090940
Kind Code:
A
Abstract:

To switch the kind of combustion gas automatically.

A combustion control device is provided with a combustion gas flow rate control device 23, a combustion air flow rate control device 24, a gas burner 12, into which the combustion gas and the air, which are controlled by the flow rate control devices, are supplied, and a combustion air to fuel ratio control means 25, controlling the flow rate ratio to burn the combustion gas and the air optimally in the gas burner. In this case, an optimum combustion air to fuel ratio automatic changing means, monitoring the change of density of gas through a gas density meter 30 to judge a time point, whereat the change of a density value, higher than a preset deciding value, is generated, as the starting of switching of gas and change the combustion air to fuel ratio by changing a theoretical combustion air volume set value of gas to air in accordance with the density value of the gas, is provided.


Inventors:
Ogata, Kenji
Yoshitake, Nobuyoshi
Application Number:
JP1999000272190
Publication Date:
April 03, 2001
Filing Date:
September 27, 1999
Export Citation:
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Assignee:
TOSHIBA CORP
International Classes:
F23N1/02; F23D17/00; (IPC1-7): F23N1/02; F23D17/00
Attorney, Agent or Firm:
大胡 典夫 (外1名)