Axial flow fan body flow meter and method

• Main Authors: HE ZHIQIAO, JU MIN, SHI QINGXIN, ZHU XINPING, YANG WEI, XIE WEIYANG, CHEN QINGEN, LIU HONGFANG, WU KEZE
• Format: Patent
• Language: Chinese; English
• Published: 15.04.2022
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

The invention relates to an axial flow fan body flowmeter which comprises a first static pressure pipe, a communicating pipe, a second static pressure pipe, a differential pressure transmitter and a connecting pipe. N first static pressure pipes are arranged below the side, close to the direction of a fan body, of a fan air inlet box flange face, and the N first static pressure pipes are connected through a communicating pipe; a second static pressure pipe is mounted at the position, close to the fan body, of the middle position over the current collector, and the second static pressure pipe is connected with a connecting pipe; the communicating pipe and the connecting pipe are both connected to a differential pressure transmitter. The differential pressure flow meter has the advantages that the static pressure pipe of the differential pressure flow meter is installed on the surface of the air inlet box of the fan and the surface of the flow collector, the pipe is in a negative pressure state, and therefore t