Calculating method of equivalent pipe length of telescoping pipeline
A calculation method and technology of variable diameter tubes, applied in measuring devices, instruments, using ultrasonic/sonic/infrasonic waves, etc., can solve the problems of increased sound wave amplitude attenuation, inaccurate installation distance calculation, and leakage location errors, etc., to achieve Improve positioning accuracy, solve the effect of low positioning accuracy and convenient operation
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[0034] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0035] Such as figure 1 As shown, a calculation method for the equivalent length of a reducing pipe includes the following steps:
[0036] Step S101: Establish a sound wave amplitude attenuation model and a straight pipe leakage sound wave amplitude attenuation model;
[0037] Step S102: Obtain the gas operating parameters in the straight pipe section, and calculate the acoustic wave amplitude attenuation factor of the straight pipe section according to the gas operating parameters in the straight pipe section;
[0038] Step S103: Obtain the installation distance of the two sensors, collect the leakage acoustic wave signal of the leakage acoustic wave propagating through the variable diameter pipe section, and extract the amplitude of the leakage acoustic wave signal;
[0039] Step S104: Substituting the amplitude of the leaked acoustic signal and the...
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