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    • 9. 发明授权
    • Use of infrared radiation in detection methods to defoam aqueous systems
    • 在检测方法中使用红外辐射消除含水系统
    • US5868859A
    • 1999-02-09
    • US729140
    • 1996-10-11
    • Robert D. HeiKeith D. LokkesmoeJay T. KummetScott P. Bennett
    • Robert D. HeiKeith D. LokkesmoeJay T. KummetScott P. Bennett
    • B01D19/04C02F1/40G05D23/00B08B3/04B08B3/08
    • B01D19/04Y10T436/12
    • The creation of a substantial volume of foam on the surface of an aqueous medium can reduce the apparent thermal IR emission substantially when compared to that of the aqueous medium free of foam. This difference in temperature (infrared emission) can be used to control a defoaming process or the addition of a defoaming agent to control foam in the aqueous medium. The apparent thermal infrared emission of foam is less than that of the aqueous medium. As the thermal IR emissions drop as foam develops, the difference between the apparent temperature of the foam and the temperature of aqueous medium increases. Such a difference in temperature can be used to control use of a defoaming process or agent. As the foam volume is reduced, the addition of a defoaming composition is substantially reduced or stopped. During the control method, a predetermined limit is established at which the defoaming process or composition is introduced into the aqueous medium. Further, the method permits the amount of defoaming agent added to the aqueous medium to be in proportion to the difference in infrared emission above the preset predetermined limit. The temperature of the foam is best measured using IR methods.
    • 在与水性介质的表面上相当量的泡沫的产生可以相对于不含泡沫的水性介质的情况,可以显着降低表观热IR辐射。 这种温度差异(红外发射)可用于控制消泡过程或添加消泡剂以控制水性介质中的泡沫。 泡沫的表观热红外发射小于水介质的热红外发射。 随着泡沫发展时的热IR辐射下降,泡沫的表观温度和水介质的温度之间的差异增加。 这种温度差可用于控制消泡过程或试剂的使用。 随着泡沫体积的减小,消泡组合物的添加被显着地减少或停止。 在控制方法期间,建立将消泡处理或组合物引入水性介质中的预定极限。 此外,该方法允许添加到水性介质中的消泡剂的量与预定的预定极限以上的红外发射的差异成比例。 使用IR方法最好测量泡沫的温度。