A bimetal cryogenic membrane storage tank for liquefied natural gas storage

Abstract

The invention discloses a bimetallic low-temperature film storage cabin for storage of liquefied natural gas, which replaces the existing film with a metal film plate, reduces dependence on the film of proprietary equipment, realizes global supply, replaces the existing film with a metal film plate, and reduces The application of low-temperature-resistant glue in on-site construction and the application of pre-insulated panels in the workshop have reduced the workload and construction progress on site. In addition, the relatively common and mature automatic welding and manual welding work is adopted for the metal film plate, thereby reducing the workload, not only improving the safety of the low-temperature film storage tank, reducing the limitation of the cargo tank on the free liquid surface of the liquid cargo, and reducing the need for low temperature resistance during the construction process. The application of glue is time-consuming, and the relatively mature and safe bimetal film plate welding design method and the environmental protection method of prefabricating foam insulation panels are adopted, thereby reducing the construction workload, shortening the construction period, improving equipment safety, and realizing green Environmental protection concept.

Description

technical field [0001] The invention relates to the technical field of liquefied natural gas (LNG) low-temperature storage devices, in particular to a bimetal low-temperature thin-film storage cabin for storing liquefied natural gas. Background technique [0002] Liquefied natural gas (LNG) has always been the preferred energy alternative to petroleum due to its advantages of greenness, environmental protection and high efficiency, and has become one of the fastest-growing energy industries in the world. With the rapid development of my country's economy and the continuous improvement of environmental governance requirements, the application and development of LNG has attracted more and more attention from all parties, especially in the case of frequent haze weather, the importance of LNG has become increasingly prominent. This has led to the rapid growth of society's demand for clean energy. Since the methane pioneer METHANEPIONEEER began its test operation in 1959, the wor...

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Problems solved by technology

[0005] The present invention provides a bimetallic low-temperature thin-film storage cabin for storage of liquefied natural gas, which solves the problem that the prior art has a relatively high dependence on the original storage cabin thin-film form, and the manufacturing cost of the thin-film is relatively high and the supply is extremely limited. There is a large amount of work on site, and the amount of glue used is relatively large. The secondary insulating layers are all glued together, and the safety performance is poor. The butt joint of the main shielding film and the welding of the main shielding layer all consume a lot of man-hours. question

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