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MORSKIE INTELLEKTUAL`NYE TEHNOLOGII
Article . 2020 . Peer-reviewed
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Improvement of lng carriers’ structures

Совершенствование конструкций судов для транспортировки сжиженного природного газа

Improvement of lng carriers’ structures

Abstract

Представлены результаты разработок, направленных на повышение надежности и экономической эффективности судов для перевозки сжиженного природного газа (СПГ) за счет рационализации конструкции и технологии строительства. Целью данной работы является поиск архитектурно-конструктивных и технологических решений для газовоза с вкладными ёмкостями, обеспечивающих (по сравнению с известными решениями) повышение прочности и надежности грузовой емкости для транспортировки и хранения сжиженного газа, уменьшение вероятности нарушения ее герметичности, сокращение затрат на строительство газовоза и его продолжительности. Для достижения этой цели выполнены следующие работы: · проанализированы различные виды традиционных архитектурно-конструктивных решений для судов-газовозов; · выявлены преимущества и недостатки традиционных решений; · предложены принципиально новые архитектурно-конструктивные решения; · описаны особенности работы предложенных конструкций в составе судна и обоснована их эффективность. Для совершенствования газовозов предложены следующие новые технические решения: · ёмкость для транспортировки и хранения СПГ в виде многослойной термоизолированной оболочки предлагается выполнять из полых алюминиевых панелей, образующих совместно с набором и переборками прочную конструкцию ёмкости с не менее чем двумя герметичными барьерами; · теплоизоляцию емкостей предлагается выполнять из многослойных полых податливых панелей из полимерного композиционного материала (например, из стеклопластика); · установку прочных конструкций емкостей выполнять с деформированием элементов теплоизоляции и с образованием натяга в соединении этих конструкций с теплоизоляцией; · строительство судов-газовозов предлагается осуществлять путем параллельного изготовления корпуса судна, прочных конструкций грузовых емкостей и конструкций теплоизоляции, а затем производить монтаж на корпусе крупных блоков теплоизоляции в отсеках судна, после чего производить вставку прочных конструкций емкостей в отсеки судна. Results of developments for LNG carriers’ reliability and cost efficiency increase owing to structure and construction technology rationalization are presented. The aim of this paper is search for architectural-and-structural and process engineering solutions for LNG carriers with containment systems that provide (in comparison with familiar solutions) strength and reliability increase for a containment system for liquefied gas transportation and storage, decrease of its seal failure probability, reduction of cost for LNG carrier construction and its duration. To achieve this aim, the following was completed: · various types of conventional architectural-and-structural solutions for LNG carriers were analyzed; · advantages and disadvantages of conventional solutions were identified; · fundamentally new architectural-and-structural solutions were proposed; · specific features of proposed structures operation in a LNG carrier were described and their effectiveness was proved. The following innovative technologies were proposed for LNG carriers: · containment systems for liquefied gas transportation and storage in the shape of a multilayer thermally insulated shell are supposed to be produced from hollow aluminum panels that form a strong containment system structure using a framing and bulkheads, with at least two leakproof barriers; · the containment system thermal insulation is expected to be manufactured from multilayer hollow compliant panels from a polymeric composite (for example, fiberglass); · strong containment system structures will be installed with deformation of thermal insulation elements and with forming tightness in these structures connection with the thermal insulation; · It is intended to construct LNG carriers through parallel manufacturing of a vessel hull, strong containment systems and thermal insulation structures and then install large thermal insulation units in the hull in vessel compartments, after that insert strong structures of the containment systems into the vessel compartments.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
bronze