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一种测定管道中空气流量的方便方法,是设置一块弓形的孔板和测量通过孔板的压差,如图1中所表示的。弓形孔板最好装置在管道上部,以便自行降低压力。为了准确和符合规
One convenient way to determine the amount of air flow in a pipe is to set up an arcuate orifice and measure the pressure differential across the orifice, as shown in Figure 1. Arcuate orifice is best installed in the upper part of the pipe, in order to reduce the pressure on their own. For accuracy and compliance