Drainage formula supersound metering device

The utility model discloses a drainage formula supersound metering device installs on the main line, including drainage pipeline section and ultrasonic flowmeter, ultrasonic flowmeter sets up main pipe section's interlude, the entry end of drainage pipeline section and exit end to the same side of drainage pipeline section stretches out, install the drainage pipeline section on the main line, introduces the drainage pipeline section through the medium with in the main line, utilizes the ultrasonic flowmeter in the middle of the drainage pipeline section to measure for need not to carry out large scale transformation to the main line, ultrasonic flowmeter measures accurately simultaneously, and the velocity of flow through known trunk line and drainage pipeline section compares can obtain the main line velocity of flow accurately, reaches the purpose of using drainage formula supersound metering device to test the large -caliber pipe way. 本实用新型公开了种引流式超声计量仪表，安装在主管路上，包括引流管段和超声波流量计，所述超声波流量计设置在所述主管段的中间段，所述引流管段的入口端