Natural gas liquefaction device used for offshore platform
A liquefaction device and offshore platform technology, which is applied in the field of natural gas liquefaction devices, can solve problems such as high environmental risks, limited construction space, and high cost investment, and achieve the effects of volume and weight control, small footprint, and simple processes
Inactive Publication Date: 2017-05-10
LICE SCI & TECH SHANGHAI
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Problems solved by technology
[0004] Offshore oil and gas exploration and production have the characteristics of high cost input and high environmental risk, so the construction space of offshore platforms is very limited, and the weight of production blocks on the upper part of the platform is also limited, and the safety requirements for production are very high. high
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[0021] The structures, proportions, sizes, etc. shown in the accompanying drawings of the description are only used to match the content disclosed in the description, for those who are familiar with the technology to understand and read, and are not used to limit the conditions for the implementation of the present invention, so there is no Technically, any modification of structure, change of proportional relationship or adjustment of size shall still fall within the scope of the technical content disclosed in the present invention without affecting the functions and objectives of the present invention. within the range that can be covered. At the same time, terms such as "upper", "lower", "front", "rear", and "middle" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the present invention. , the change or adjustment of its relative relationship, without substantive changes in the technical content, should also be...
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The invention provides a natural gas liquefaction device used for an offshore platform. The natural gas liquefaction device comprises a heat exchange structure, a gas-liquid separator, a first collecting device and a second collecting device. The heat exchange structure comprises a nitrogen expansion refrigerating system and a heat exchanger. A first input tube, a second input tube, a first output tube and a second output tube are arranged on the heat exchanger. The first input tube is connected with a natural gas source. The first output tube is connected with the gas-liquid separator. The second input tube is connected with a gaseous phase outlet of the gas-liquid separator. The second output tube is connected with the first collecting device. The nitrogen expansion refrigerating system is connected with the heat exchanger. A liquid phase outlet of the gas-liquid separator is connected with the second collecting device. According to the natural gas liquefaction device, the refrigerating capacity is generated when high-safety nitrogen media is subjected to the cyclic process of compression, expansion and refrigeration; and the heat exchanger is a microporous heat exchanger, the size and weight are effectively controlled on the premise that heat exchange conditions of the heat exchanger are met, and therefore, the natural gas liquefaction device is compact in structure and small in occupied space.
Description
technical field [0001] The invention relates to the field of natural gas processing, in particular to a natural gas liquefaction device used on an offshore platform. Background technique [0002] With the increasing demand for energy in today's society, the development of offshore oil and gas fields has become a hot spot; and with the increasing awareness of environmental protection of the atmosphere, the utilization and production of natural gas as a clean energy has received more and more attention. Natural gas has developed rapidly as a green energy. [0003] The natural gas produced by offshore oil and gas fields is generally exported to the onshore natural gas receiving terminal for natural gas purification and liquefaction treatment. For offshore marginal gas fields, associated gas fields, deep-sea gas fields, etc., which have relatively small production, submarine gas pipelines are used to transport these natural gas. The method is obviously not very economical. If ...
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Patent Timeline
Login to View More IPC IPC(8): F25J1/02
CPCF25J1/0204F25J1/0257
Inventor 马叶勇
Owner LICE SCI & TECH SHANGHAI