Electronic gas meter calibrating device and calibrating method

• Main Authors: XU XIAOJING, SHENG CHENGLONG, QI ERLUO, TAN HUA
• Format: Patent
• Language: Chinese; English
• Published: 28.09.2018
• Subjects: MEASURING; MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL; METERING BY VOLUME; PHYSICS; TESTING

The invention discloses an electronic gas meter calibrating device and a calibrating method in the field of electronic gas meter calibration. The device comprises a workbench, wherein the workbench isprovided with a support plate; a water tank is arranged at the top of the support plate; an air blower, a first ultrasonic flowmeter, a to-be-calibrated electronic gas meter and a second ultrasonic flowmeter are sequentially arranged at the tops of four support blocks from left to right; universal joints are arranged at tops of left and right sides of a T-shaped connecting rack; a nozzle is arranged at the bottom of each universal joint; a water flow port is formed in the workbench; a filtering device is movably inserted and connected in an inner cavity of the water flow port. Whether the sealing performance of the to-be-calibrated electronic gas meter is intact or not is judged through numerical values recorded on the first ultrasonic flowmeter, the to-be-calibrated electronic gas meterand the second ultrasonic