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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">izmertech</journal-id><journal-title-group><journal-title xml:lang="ru">Измерительная техника</journal-title><trans-title-group xml:lang="en"><trans-title>Izmeritel`naya Tekhnika</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0368-1025</issn><issn pub-type="epub">2949-5237</issn><publisher><publisher-name>ФГУП "ВНИИФТРИ"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32446/0368-1025it.2021-6-13-19</article-id><article-id custom-type="elpub" pub-id-type="custom">izmertech-1907</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>МЕХАНИЧЕСКИЕ ИЗМЕРЕНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MECHANICAL MEASUREMENTS</subject></subj-group></article-categories><title-group><article-title>Инвариантный метод измерения расхода влажного газа</article-title><trans-title-group xml:lang="en"><trans-title>Invariant method for measuring wet gas flow rate</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7685-2862</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Даев</surname><given-names>Ж. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Dayev</surname><given-names>Z. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Жанат Ариккулович Даев</p><p>г. Актобе</p></bio><bio xml:lang="en"><p>Zhanat А. Dayev</p><p>Aktobe</p></bio><email xlink:type="simple">zhand@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шопанова</surname><given-names>Г. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Shopanova</surname><given-names>G. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гульжан Ережеповна Шопанова</p><p>г. Актобе</p></bio><bio xml:lang="en"><p>Gulzhan E. Shopanova</p><p>Aktobe</p></bio><email xlink:type="simple">shopanova80@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Токсанбаева</surname><given-names>Б. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Toksanbaeva</surname><given-names>B. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бакытгуль Айтбаевна Токсанбаева</p><p>г. Актобе</p></bio><bio xml:lang="en"><p>Bakytgul А. Toksanbaeva</p><p>Aktobe</p></bio><email xlink:type="simple">bakit-toksan@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Баишев Университет</institution><country>Казахстан</country></aff><aff xml:lang="en"><institution>Baishev University</institution><country>Kazakhstan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>03</day><month>08</month><year>2023</year></pub-date><volume>0</volume><issue>6</issue><fpage>13</fpage><lpage>19</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; ФГУП "ВНИИФТРИ", 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">ФГУП "ВНИИФТРИ"</copyright-holder><copyright-holder xml:lang="en">ФГУП "ВНИИФТРИ"</copyright-holder><license xlink:href="https://www.izmt.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://www.izmt.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://www.izmt.ru/jour/article/view/1907">https://www.izmt.ru/jour/article/view/1907</self-uri><abstract><p>Рассмотрена одна из задач современной расходометрии – измерение расхода и количества влажного газа. Эта задача особенно актуальна в условиях производства, когда требуется информация о количестве сухой части газа, содержащегося в виде смеси в потоке влажного газа. Представлен принцип работы и структура инвариантной системы измерения расхода влажного газа (за исключением газов с обильной капельной влажностью). Работа инвариантной системы измерения расхода влажного газа основана на комбинированном применении расходомеров переменного перепада давлений и кориолисовых расходомеров, а также на одновременном использовании принципа многоканальности и метода парциальной расходометрии. Приведены результаты испытания предложенной инвариантной системы и оценены её метрологические характеристики при измерении расхода влажного газа. Полученные результаты испытаний актуальны для объектов добычи, транспорта и хранения природного газа.</p></abstract><trans-abstract xml:lang="en"><p>The article deals with one of the important tasks of modern flow measurement, which is related to the measurement of the flow rate and the amount of wet gas. This task becomes especially important when it becomes necessary to obtain information about the separate amount of the dry part of the gas that is contained in the form of a mixture in the wet gas stream. The paper presents the principle of operation and structure of the invariant system for measuring the flow rate of wet gas, which is based on the combined use of differential pressure flowmeters and Coriolis flowmeters. The operation of the invariant wet gas flow rate measurement system is based on the simultaneous application of the multichannel principle and the partial flow measurement method. Coriolis flowmeters and the differential pressure flowmeter are used as the main elements of the system. The proposed measurement system does not off er applications for gases with abundant drip humidity. The article provides information about the test results of the proposed invariant system. The estimation of the metrological characteristics of the invariant system when measuring the flow rate of wet gas is given. The obtained test results of the invariant wet gas flow rate measurement system are relevant for natural gas production, transportation, and storage facilities.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>влажный газ</kwd><kwd>принцип многоканальности</kwd><kwd>парциальный расход</kwd><kwd>инвариантная система</kwd><kwd>расход газа</kwd><kwd>диафрагма</kwd><kwd>кориолисовый расходомер</kwd></kwd-group><kwd-group xml:lang="en"><kwd>wet gas</kwd><kwd>multichanneling principle</kwd><kwd>partial flow measurement</kwd><kwd>invariant system</kwd><kwd>gas flow rate</kwd><kwd>orifice plate</kwd><kwd>Coriolis flowmeter</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Economides M. J., Wood D. A., Journal of Natural Gas Science and Engineering, 2009, vol. 1, pp. 1–13. https://doi.org/10.1016/j.jngse.2009.03.005</mixed-citation><mixed-citation xml:lang="en">Economides M. 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