| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to enhance a fire fighting effect of equipment of a chemical for a fire fighting by containing a higher concentration of a fire fighting chemical, however, containing the higher concentration of the fire fighting chemical in vain is to increase a waste of water. SOLUTION: A fire sensor outputting an analogue signal which is placed on the higher point than a sprayer head of the chemical for the fire fighting around the sprayer head of the chemical for the fire fighting or which has a prevention mean for getting water is formed, and the analogue signal from this fire sensor is connected to a control console with a memory storage, and by forming an electromotive valve to control the concentration of the chemical for the fire fighting with receiving the signal from the control console, a mixture ration of the chemical for the fire fighting is controlled depending on the scale of a fire.
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