RU2017123900A - The method for determining the residual life of thermal fencing high-temperature units - Google Patents

The method for determining the residual life of thermal fencing high-temperature units Download PDF

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RU2017123900A
RU2017123900A RU2017123900A RU2017123900A RU2017123900A RU 2017123900 A RU2017123900 A RU 2017123900A RU 2017123900 A RU2017123900 A RU 2017123900A RU 2017123900 A RU2017123900 A RU 2017123900A RU 2017123900 A RU2017123900 A RU 2017123900A
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compression
thermal
determining
fencing
residual life
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RU2017123900A
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RU2017123900A3 (en
RU2724135C2 (en
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Евгений Валентинович Приходько
Александр Степанович Никифоров
Георгий Николаевич Никонов
Евгений Олегович Кучер
Акмарал Кабиденовна Кинжибекова
Амангельды Ерболович Карманов
Адилет Турсынбаевна Кажибаева
Вячеслав Викторович Зыков
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Товарищество с ограниченной ответственностью "GN Energy"
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/72—Investigating presence of flaws

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
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  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)

Claims (11)

1. Способ определения остаточного ресурса тепловых ограждений высокотемпературных агрегатов, включающий измерения толщины обмуровок и расчета значений показателей безотказности, отличающийся тем, что в качестве показателей надежности используют критерии надежности по прочности (как для сжатия, так и для расширения) определяемый по формуле (например, для сжатия):1. A method for determining the residual life of thermal fencing of high-temperature units, including measuring the thickness of the lining and calculating the values of reliability indicators, characterized in that reliability indicators use reliability criteria for strength (both for compression and expansion) determined by the formula (for example, for compression):
Figure 00000001
Figure 00000001
 где ΣNсж - сумма значения суммарных показателей сжатия, определяемых по формуле:where ΣN SJ - the amount of value totals compression, defined by the formula: Nсж=σсж ⋅ (z+1),N cr = σ cr ⋅ (z + 1), где z - коэффициент, учитывающий длины зон сжатия и растяжения, в которых температурные напряжения, превышают допустимые,where z is a coefficient taking into account the lengths of the compression and tension zones, in which the temperature stresses exceed the permissible ones, ΣNсж доп - сумма значения суммарных показателей сжатия в той же точке в тот же момент времени, находится аналогично ΣNсж, но при значении σсж равном пределу прочности материала.ΣN additional compression channel - the sum values of the total compression rates at the same point at the same time, it is similarly ΣN compression channel, but at a value equal to the compression channel σ tensile strength material. 2. Способ определения остаточного ресурса тепловых ограждений высокотемпературных агрегатов по п. 1, отличающийся тем, что остаточный ресурс nост (в количествах циклов) определяют по формуле (например, для сжатия):2. The method for determining the residual life of thermal fencing of high-temperature units according to claim 1, characterized in that the residual life n ost (in the number of cycles) is determined by the formula (for example, for compression):
Figure 00000002
Figure 00000002
 где ΣNсж.ср. - среднеарифметическое значение суммарных показателей сжатия за один цикл;where ΣN compression - the arithmetic mean of the total compression indicators for one cycle; n - количество циклов высокотемпературного агрегата, прошедших на данный момент после замены футеровки, шт.n is the number of cycles of the high-temperature unit that have passed at the moment after lining replacement, pcs. 3. Способ определения остаточного ресурса тепловых ограждений высокотемпературных агрегатов по п. 1, отличающийся тем, что определение остаточного ресурса ведут постоянно во время работы энергетического агрегата.3. The method for determining the residual resource of thermal fencing of high-temperature units according to claim 1, characterized in that the determination of the residual resource is carried out continuously during operation of the energy unit.
RU2017123900A 2017-07-05 2017-07-05 Method for determination of residual life of thermal enclosures of high-temperature units RU2724135C2 (en)

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US4151438A (en) * 1977-08-17 1979-04-24 The United States Of America As Represented By United States Department Of Energy Distributed electrical leads for thermionic converter
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