Combined container type gas flow detection device by pVTt method
A gas flow and detection device technology, which is applied in measuring devices, test/calibration devices, liquid/fluid solid measurement, etc., can solve the problems of low detection efficiency, small maximum flow value, and small volume of standard containers, etc., to improve detection efficiency , reduce the cost of the device, the effect of high accuracy level
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[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0020] figure 1 It is a schematic diagram of a container combined pVTt method gas flow detection device (negative pressure), including two or more standard containers, a buffer container I, a vacuum pump, an intelligent collection system and a control system. Each standard container is equipped with an inlet valve, a combination selection valve and an outlet valve; the outlet of each inlet valve is connected to the corresponding standard container, and the inlet of each inlet valve is used as the installation port of the flowmeter to be tested; One end of each combination selection valve is connected to the corresponding standard container, and the other end of each combination selection valve is connected to each other; one end of each outlet valve is connected to the corresponding standard container, and the other end of each outlet...
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