Abstract
As we know, the hydraulic problems, the ordinary gear flowmeter pulsation of the flow rate and the pressure pulsation of the defects, remain to be solved. The article started from the analysis of Instantaneous flow characteristics for general gear flow-meter, with the control variables method, relationship between the number of gear teeth and flow pulse rate was studied.The rule was discovered that while gear's number of teeth is bigger, the flow and press pulsation for general gear flowmeter is less. The paper conducted the simulation research on instantaneous flow characteristics for general gear flow-meter. The results show that: while z1=z2=30, the flow pulsation rate equals 7.05%. While z1=z2=8, the flow pulsation rate equals 24.45%. While z1=19, z2=14, the flow pulsation rate equals12.73%. This research has provided the theoretical basis for the gear flow-meter's design.
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