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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">inbure</journal-id><journal-title-group><journal-title xml:lang="ru">Известия вузов. Инвестиции. Строительство. Недвижимость</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestiya vuzov. Investitsii. Stroitelstvo. Nedvizhimost</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2227-2917</issn><issn pub-type="epub">2500-154X</issn><publisher><publisher-name>Irkutsk National Research Technical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21285/2227-2917-2026-1-92-101</article-id><article-id custom-type="edn" pub-id-type="custom">OQSNDG</article-id><article-id custom-type="elpub" pub-id-type="custom">inbure-407</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>СТРОИТЕЛЬСТВО</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CONSTRUCTION</subject></subj-group></article-categories><title-group><article-title>Расчет параметров кавитации центробежных насосов</article-title><trans-title-group xml:lang="en"><trans-title>Calculation of cavitation parameters of centrifugal pumps</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0005-5766-0901</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Баранчикова</surname><given-names>Н. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Baranchikova</surname><given-names>N. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Надежда Ивановна Баранчикова, к. ф.-м. н., доцент</p><p>кафедра городского строительства и хозяйства</p><p>664074; ул. Лермонтова, 83; Иркутск</p><p>Author ID: 17374</p></bio><bio xml:lang="en"><p>Nadezhda I. Baranchikova, Cand. Sci (Ph.-Math.), Associate Professor</p><p>Department of Urban Construction and Economy</p><p>664074; 83 Lermontov St.; Irkutsk</p><p>Author ID: 17374</p></bio><email xlink:type="simple">nadin-0105@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0006-1853-9743</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кульков</surname><given-names>В. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Kulkov</surname><given-names>V. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Виктор Николаевич Кульков, д. т. н., профессор, профессор кафедры</p><p>кафедра инженерных коммуникаций и систем жизнеобеспечения</p><p>664074; ул. Лермонтова, 83; Иркутск</p><p>Author ID: 730720</p></bio><bio xml:lang="en"><p>Victor N. Kulkov, Dr. Sci. (Eng.), Professor, Professor of the Department</p><p>Department of Engineering Communications and Life Support Systems</p><p>664074; 83 Lermontov St.; Irkutsk</p><p>Author ID: 730720</p></bio><email xlink:type="simple">kulkof.viktor@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4063-7252</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Солопанов</surname><given-names>Е. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Solopanov</surname><given-names>E. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Евгений Юрьевич Солопанов, к. т. н., доцент</p><p>кафедра прикладной математики и информатики</p><p>664074; ул. Лермонтова, 83; Иркутск</p><p>Author ID: 518365</p></bio><bio xml:lang="en"><p>Evgenii Yu. Solopanov, Cand. Sci (Eng.), Associate Professor</p><p>Department of Applied Mathematics and Computer Science</p><p>664074; 83 Lermontov St.; Irkutsk</p><p>Author ID: 518365</p></bio><email xlink:type="simple">evgursolo@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>Абросимова</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Abrosimova</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Иванна Александровна Абросимова, аспирант</p><p>664074; ул. Лермонтова, 83; Иркутск</p></bio><bio xml:lang="en"><p>Ivanna A. Abrosimova, Postgraduate Student</p><p>664074; 83 Lermontov St.; Irkutsk</p></bio><email xlink:type="simple">abrosimovaia94@gmail.com</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>Ярыгин</surname><given-names>Р. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Yarygin</surname><given-names>R. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Роман Николаевич Ярыгин, аспирант</p><p>664074; ул. Лермонтова, 83; Иркутск</p></bio><bio xml:lang="en"><p>Roman N. Yarygin, Postgraduate Student</p><p>664074; 83 Lermontov St.; Irkutsk</p></bio><email xlink:type="simple">yarygin.r@hydrig.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-4696-5994</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Епифанов</surname><given-names>С. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Epifanov</surname><given-names>S. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сергей Петрович Епифанов, к. ф.-м. н., главный специалист</p><p>664081; ул. Ширямова, 2; Иркутск</p><p>Author ID: 16851</p></bio><bio xml:lang="en"><p>Sergey P. Epifanov, Cand. Sci (Ph.-Math.), Chief Specialist</p><p>664081; 2 Shiryamova St.; Irkutsk</p><p>Author ID: 16851</p></bio><email xlink:type="simple">epifanov.1954@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Иркутский национальный исследовательский технический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Irkutsk National Research Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ООО «Иркутский ремонтно-механический завод»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Irkutsk Repair and Mechanical Plant LLC</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>12</day><month>04</month><year>2026</year></pub-date><volume>16</volume><issue>1</issue><fpage>92</fpage><lpage>101</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Баранчикова Н.И., Кульков В.Н., Солопанов Е.Ю., Абросимова И.А., Ярыгин Р.Н., Епифанов С.П., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Баранчикова Н.И., Кульков В.Н., Солопанов Е.Ю., Абросимова И.А., Ярыгин Р.Н., Епифанов С.П.</copyright-holder><copyright-holder xml:lang="en">Baranchikova N.I., Kulkov V.N., Solopanov E.Y., Abrosimova I.A., Yarygin R.N., Epifanov S.P.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://inbure.elpub.ru/jour/article/view/407">https://inbure.elpub.ru/jour/article/view/407</self-uri><abstract><p>   Эффективная продолжительная эксплуатация насосных установок с центробежными насосами связана во многом с их бескавитационной работой. Для изучения кавитации выбирают параметры, которые оценивают уровень и местоположение кавитирующего потока, размеры и время процесса кавитации. Обеспечить бескавитационную работу насосов на стадии проектирования и эксплуатации можно только на основании корректно выполненных расчетов кавитационных параметров, сравнивая которые с требуемыми параметрами можно сформировать необходимые режимы функционирования насосных установок.</p><p>   Особое внимание необходимо уделить насосным установкам с частотными преобразователями либо многоскоростным насосным агрегатам, так как пересчет кавитационных характеристик при изменении частоты вращения рабочего колеса по имеющейся одной заводской характеристике далеко не всегда позволяет получить адекватную измененную кавитационную характеристику.</p><p>   Поэтому для крупных насосов и небольшом имеющемся кавитационном запасе предложена методика пересчета кавитационных характеристик, использующих две базовые кавитационных характеристики насоса. При перекачивании высокотемпературной воды необходимо учитывать термодинамический эффект, приводящий к понижению кавитационного запаса. Рассмотрены различные подходы определения измененного кавитационного запаса.</p></abstract><trans-abstract xml:lang="en"><p>   Efficient long-term operation of pumping units with centrifugal pumps is largely due to their cavitation-free operation. To study cavitation, parameters are selected that estimate the level and location of the cavitating flow, the size and time of the cavitation process. It is possible to ensure cavitation-free operation of pumps at the design and operation stage only on the basis of correctly performed calculations of cavitation parameters, comparing which with the required parameters, it is possible to form the necessary operating modes of pumping units.</p><p>   Special attention should be paid to pumping units with frequency converters or multi-speed pumping units, since recalculating the cavitation characteristics when changing the speed of rotation of the impeller according to the available one factory characteristic does not always allow obtaining an adequate modified cavitation characteristic.</p><p>   Therefore, for large pumps with a small available cavitation reserve, a method for recalculating cavitation characteristics using two basic cavitation characteristics of the pump is proposed. When pumping high-temperature water, it is necessary to take into account the thermodynamic effect leading to a decrease in the cavitation reserve. Various approaches to determining the modified cavitation reserve are considered.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>тепловые электростанции</kwd><kwd>центробежные насосы</kwd><kwd>располагаемый и требуемый кавитационные запасы</kwd><kwd>NPSH</kwd><kwd>паровая кавитация</kwd><kwd>напорно-расходная характеристика насоса</kwd><kwd>кавитационная характеристика</kwd><kwd>рабочее колесо насоса</kwd><kwd>понижение кавитационного запаса</kwd></kwd-group><kwd-group xml:lang="en"><kwd>thermal power plants</kwd><kwd>centrifugal pumps</kwd><kwd>available and required cavitation reserves</kwd><kwd>NPSH</kwd><kwd>steam cavitation</kwd><kwd>pressure and flow characteristics of the pump</kwd><kwd>cavitation characteristics</kwd><kwd>pump impeller</kwd><kwd>reduction of cavitation reserve</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">Марцинковский В.А., Ворона П.Н. 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CD Proceedings of 25&lt;sup&gt;th&lt;/sup&gt; International Pump Users Symposium. 2009:39-48.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
