SU642575A1 - Method of determining distance to pipeline place of damage - Google Patents
Method of determining distance to pipeline place of damageInfo
- Publication number
- SU642575A1 SU642575A1 SU752186949A SU2186949A SU642575A1 SU 642575 A1 SU642575 A1 SU 642575A1 SU 752186949 A SU752186949 A SU 752186949A SU 2186949 A SU2186949 A SU 2186949A SU 642575 A1 SU642575 A1 SU 642575A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- damage
- pipeline
- determining distance
- waves
- pipeline place
- Prior art date
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Description
1one
Изобретение относитс к трубопроводному транспорту, преимущественно дл транспортировани жидких сред и может быть использовано дл дистанционного обнаружени мест повреждени ; трубопроводов при их перекачке.The invention relates to pipeline transport, primarily for transporting liquid media, and can be used to remotely locate damage sites; pipelines at their transfer.
Известен способ обнаружени повреждений по акустическим колебани м, предусматриваюишй обход и объезд трассы трубопровода flj.There is a known method for detecting damage due to acoustic oscillations, bypassing and bypassing the pipeline route flj.
Наиболее близким к предлагаемому вл етс способ измере ш рассто ни до места повреждени по интервалу времени между гидроударной волной и акустическими колебани ми тела трубы, предусматривающий регистрацию волн на одном конце трубопровода и реализуемый при различии в скорост х волн, распростран ющихс в различных cpeдax 2J. При регистрации волн на одном конце трубопровода существенно снижаетс точность и дальность измерений из-за незначительного различи п скорост х распространени гидроударных и акустичес-The closest to the proposed method is the measurement of the distance to the damage site by the time interval between the hydropercussion wave and acoustic oscillations of the pipe body, which envisages the registration of waves at one end of the pipeline and is realized with a difference in the wave velocities propagating in different modes 2J. When registering waves at one end of the pipeline, the accuracy and range of measurements are significantly reduced due to a slight difference in the propagation speeds of hydropercussion and acoustic signals.
ких волн и быстрого затухани последних . Применение различных акустических усилителей ухудщает помехозащищенность системы,kih waves and the rapid decay of the latter. The use of various acoustic amplifiers impairs the noise immunity of the system,
Целью изобретени вл етс повышение точности и надежности получени результата ,The aim of the invention is to improve the accuracy and reliability of the result,
Это достигаетс тем, что интервал времени определ ют между образовавщимис в месте повреждени трубопровода волнами различной физической природы, например между электромагнитными и гидромеханическими волнами. Так как скорости волн различной физической природы значительно отличаютс по величине , то регистрируемый интервал времени увеличиваетс и может быть измерен значительно точнее, чем при регистрации волн одинаковой физической природы.This is achieved by the fact that the time interval is determined between waves of a different physical nature, formed in the place of pipeline damage, for example, between electromagnetic waves and hydromechanical waves. Since the velocities of waves of different physical nature differ significantly in magnitude, the recorded time interval increases and can be measured much more accurately than when registering waves of the same physical nature.
Применение двух датчиков и регистрирующего врем прибора, которые можно устанавливать совместно в любом месте трубопровода, значительно упрощает процесс измерени и повышают надежностьThe use of two sensors and a time recorder, which can be installed together at any place in the pipeline, greatly simplifies the measurement process and improves reliability
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU752186949A SU642575A1 (en) | 1975-11-04 | 1975-11-04 | Method of determining distance to pipeline place of damage |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU752186949A SU642575A1 (en) | 1975-11-04 | 1975-11-04 | Method of determining distance to pipeline place of damage |
Publications (1)
Publication Number | Publication Date |
---|---|
SU642575A1 true SU642575A1 (en) | 1979-01-15 |
Family
ID=20636464
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU752186949A SU642575A1 (en) | 1975-11-04 | 1975-11-04 | Method of determining distance to pipeline place of damage |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU642575A1 (en) |
-
1975
- 1975-11-04 SU SU752186949A patent/SU642575A1/en active
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