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    • 7. 发明授权
    • System for active regulation of the air/gas ratio of a burner including a differential pressure measuring system
    • 用于主动调节包括差压测量系统的燃烧器的空气/气体比的系统
    • US06533574B1
    • 2003-03-18
    • US09623636
    • 2000-09-06
    • Christophe Pechoux
    • Christophe Pechoux
    • F23N524
    • F23N5/242F23N1/02F23N5/188F23N2025/04F23N2033/08F23N2035/16F23N2900/05181
    • The system for active regulation of the air/gas ratio of a burner comprises one or two differential pressure measuring systems each of which has a differential pressure sensor with two inlet orifices. The orifices are respectively connected to pressure ports in one of which there is a calibrated throttling orifice. The regulator system comprises a 2-channel valve which, when closed, isolates the two inlet orifices from each other, and, when open, connects them to each other. A measurement circuit is provided and has memory means for storing at least two values of the output signal of the sensors, a control unit for switching the valve and controlling the storage of a first value of an output signal of the sensor in the memory means when the valve is closed and the storage of a second value of the output signal of the sensor when the valve is open, and subtractor means for calculating the difference between the two stored values of the output signal of the sensor and thereby eliminating any drift. In a preferred variant, the regulator system includes only one differential pressure measuring system.
    • 用于主动调节燃烧器的空气/气体比的系统包括一个或两个差压测量系统,每个差压测量系统具有带有两个入口孔的差压传感器。 孔口分别连接到压力端口,其中有一个具有校准的节流孔。 调节器系统包括一个2通道阀门,当关闭时,两个入口孔彼此隔开,并且当打开时将它们彼此连接。 提供了测量电路,并且具有用于存储传感器的输出信号的至少两个值的存储装置,用于切换阀门的控制单元,并且控制在存储装置中存储传感器的输出信号的第一值的控制单元, 关闭阀门,并且当阀门打开时存储传感器的输出信号的第二值,以及用于计算传感器的输出信号的两个存储值之间的差异的减法器装置,从而消除任何漂移。 在优选的变型中,调节器系统仅包括一个压差测量系统。