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EQUAL PRESSURE MIXING DEVICE FOR FOAM FIRE EXTINGUISHER
EQUAL PRESSURE MIXING DEVICE FOR FOAM FIRE EXTINGUISHER
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机译:泡沫灭火器的等压混合装置
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摘要
PURPOSE:To improve the fire extinguishing capability by detecting pressures of both liquids in a mixer and controlling a control valve so that a pressure ratio of both liquids is always fixed. CONSTITUTION:A mixer 1 which mixes water and a foam fire extinguisher, a control valve 4 which controls the supply quantity of the foam fire extinguisher, and a differential pressure controller 6 are provided. The differential pressure controller 6 detects pressures of both liquids in the mixer 1 and controls the driving air pressure of the control valve 4 to control the control valve 4 independently of the flow rate of the mixed foaming aqueous solution so that the pressure ratio of both liquids is always fixed. As the result, the pressure difference to the control valve between the water supply part and the foam fire extinguisher is increased to 20kg/cm25kg/cm2, and the mixture ratio of the foam fire extinguisher to water is always fixed independently of the flow rate to improve the fire extinguishing capability.
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机译:目的:通过检测混合器中两种液体的压力并控制控制阀,以使两种液体的压力比始终固定,以提高灭火能力。构成:设有将水和泡沫灭火器混合的混合器1,控制泡沫灭火器的供给量的控制阀4以及差压控制器6。压差控制器6检测混合器1中的两种液体的压力,并且控制控制阀4的驱动空气压力以独立于混合发泡水溶液的流量来控制控制阀4,从而两种液体的压力比总是固定的。结果,供水部分和泡沫灭火器之间的到控制阀的压力差增加到20kg / cm 2 5kg / cm 2,并且泡沫灭火器与水的混合比为:始终与流量无关地固定,以提高灭火能力。
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