Research on the Selection of Flowmeter for Dust Sampler Calibration Device
Different types of gas flowmeters are used as the standard flow devices of dust sampler calibration equip-ment,and the flow calibration of indicating and digital dust sampler is carried out respectively.The influence of pipeline negative pressure,ambient temperature and atmospheric pressure on the measurement results is ana-lyzed.The results show that the membrane flowmeter and the orifice flowmeter have better accuracy and less load pressure,and can be used as the standard flowmeter of the device.The measurement results of the indicating dust sampler must be based on the influence of pipe negative pressure,ambient temperature,and atmospheric pressure.
gas flowmetercalibration devicedust samplerload pressure