Gas flow orifice plate calibrating apparatus

• Main Authors: YANG GUANG, GUO ZIXUE, MA JIANGUO, QIU ZHIHENG, BAI ZHIWEI, ZHANG SHUXIA, WANG JIANJUN, LI WENPO
• Format: Patent
• Language: Chinese; English
• Published: 20.08.2014
• Subjects: MEASURING; MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL; METERING BY VOLUME; PHYSICS; TESTING

The utility model discloses a gas flow orifice plate calibrating apparatus which comprises a gas inlet and a gas outlet, and the gas inlet and the gas outlet are each provided with a working gas container, a vacuum tank and an adjusting container for a valve. The gas flow orifice plate calibrating apparatus further comprises an orifice plate box with a perforated plate arranged therein and a working gas receiving apparatus with a plurality of built-in material recovering containers. The gas outlet of the working gas container communicates with the gas inlet of the vacuum tank through a pipe, one side of the orifice plate box communicates with the gas outlet of the vacuum tank through a pipe, and the other side of the orifice plate box communicates with the gas inlet of the adjusting container through a pipe. A front orifice plate manometer and a rear orifice plate manometer are respectively installed on the front and rear sides of the orifice plate box, and a manual regulating valve door is installed on the p