RU2016142573A - METHOD FOR DETERMINING RESIDUAL PIPELINE RESOURCE - Google Patents

METHOD FOR DETERMINING RESIDUAL PIPELINE RESOURCE Download PDF

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RU2016142573A
RU2016142573A RU2016142573A RU2016142573A RU2016142573A RU 2016142573 A RU2016142573 A RU 2016142573A RU 2016142573 A RU2016142573 A RU 2016142573A RU 2016142573 A RU2016142573 A RU 2016142573A RU 2016142573 A RU2016142573 A RU 2016142573A
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Prior art keywords
pipeline
failure
determined
cycle
exponent
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RU2016142573A
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Russian (ru)
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RU2654154C2 (en
RU2016142573A3 (en
Inventor
Валерий Викторович Иванов
Илья Сергеевич Воронцов
Николай Владимирович Тингаев
Григорий Викторович Цепилов
Андрей Алексеевич Ромашко
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Закрытое акционерное общество "Межрегиональное производственное объединение технического комплектования "ТЕХНОКОМПЛЕКТ" (ЗАО "МПОТК "ТЕКНОКОМПЛЕКТ")
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Priority to RU2016142573A priority Critical patent/RU2654154C2/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00—Protection or supervision of installations
    • F17D5/02—Preventing, monitoring, or locating loss
    • F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pipeline Systems (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Claims (19)

Способ определения остаточного ресурса трубопровода, при котором исходными данными для определения израсходованного ресурса являются относительные деформации и величины давления внутри трубопровода, отличающийся тем, что в трубопроводе выявляют зону с потенциально пониженным ресурсом, в этой зоне определяют место установки датчика давления и экстензометров, на основе показаний которых непрерывно производится расчет остаточного ресурса согласно выражению:A method for determining the residual life of a pipeline, in which the initial data for determining the spent life are relative deformations and pressure values inside the pipeline, characterized in that a zone with a potentially reduced resource is detected in the pipeline, the location of the pressure sensor and extensometers is determined in this zone, based on the readings which continuously calculates the residual resource according to the expression: Tост=Tслужбы.норм-T,T ost = T service.norm -T, где Tслужбы.норм - нормативный срок службы трубопровода;where T service.norm - the standard service life of the pipeline; Т - величина израсходованного ресурса в данном сечении трубопровода, которая определяется согласно выражению:T is the value of the consumed resource in a given section of the pipeline, which is determined according to the expression:
Figure 00000001
Figure 00000001
Figure 00000002
- накопленные повреждения:
Figure 00000002
- accumulated damage:
Figure 00000003
- величина накопленных повреждений, определяемая в ходе текущего цикла расчета;
Figure 00000003
- the amount of accumulated damage determined during the current cycle of calculation;
Figure 00000004
- величина накопленных повреждений, определенная в ходе предыдущего цикла расчета;
Figure 00000004
- the amount of accumulated damage determined during the previous cycle of calculation; Nэц - число циклов, которое может выдержать участок трубопровода при данном типе нагружения, определяется из уравнения Морроу-Мэнсона:N ez - the number of cycles that a pipeline section can withstand for a given type of loading is determined from the Morrow-Manson equation:
Figure 00000005
Figure 00000005
 где
Figure 00000006
- усталостная вязкость (значение амплитуды пластической деформации, при котором разрушение (отказ) произойдет в ходе одного полуцикла нагружения при условии отсутствия упругих деформаций)Where
Figure 00000006
- fatigue viscosity (the value of the amplitude of plastic deformation at which failure (failure) will occur during one half-cycle of loading, provided that there are no elastic deformations)
Figure 00000007
Figure 00000007
 ψ - относительное сужение материала при разрыве;ψ is the relative narrowing of the material at break;
Figure 00000008
- усталостная прочность (значение амплитуды напряжений, при котором разрушение (отказ) произойдет в ходе одного полуцикла нагружения при условии отсутствия пластических деформаций)
Figure 00000008
- fatigue strength (the value of the stress amplitude at which failure (failure) will occur during one half-cycle of loading, provided there are no plastic deformations)
Figure 00000009
Figure 00000009
 b - экспонента усталостной прочности (экспонента Басквина)b - exponent of fatigue strength (Baskvin exponent)
Figure 00000010
Figure 00000010
 с - экспонента усталостной вязкостиs - exponent of fatigue viscosity
Figure 00000011
Figure 00000011
RU2016142573A 2016-10-28 2016-10-28 Method of determining the residual life of the pipelines RU2654154C2 (en)

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2708176C1 (en) * 2019-04-17 2019-12-04 Общество с ограниченной ответственностью "Экспертно-Инжиниринговая Компания" (ООО "ЭКСИКОМ") Method of increasing service life of pipe

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2194967C2 (en) * 2000-03-03 2002-12-20 Кузнецов Николай Сергеевич Procedure determining residual service life of pipe-line
RU2436103C1 (en) * 2010-04-06 2011-12-10 Анатолий Петрович Черепанов Method for prognosis of resource of objects of higher hazard
RU2426091C1 (en) * 2010-05-19 2011-08-10 Закрытое акционерное общество Научно-исследовательский проектно-изыскательский институт "ИнжГео"(ЗАО "НИПИ" ИнжГео") Procedure for evaluation of resource of pipeline metal
RU2536783C1 (en) * 2013-08-06 2014-12-27 Открытое акционерное общество "Гипрогазцентр" Method of determining operating life of metal of pipeline

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