Cold inspection test device and method for insulating layer of LNG marine tank

A technology for an LNG ship and a test device, which is applied to the field of cold inspection test devices for thermal insulation layers of LNG marine storage tanks, can solve problems such as economic loss, short repair time for storage tank manufacturers, and increased difficulty in repairing thermal insulation layers, and achieves easy detection. Effect

Pending Publication Date: 2020-01-03
南通中集太平洋海洋工程有限公司
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Problems solved by technology

At this time, once there is a problem with the insulation layer of the LNG storage tank, it is much more difficult to repair the insulation layer of the LNG storage tank than in t

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  • Cold inspection test device and method for insulating layer of LNG marine tank
  • Cold inspection test device and method for insulating layer of LNG marine tank

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Embodiment Construction

[0030] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0031] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must ha...

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Abstract

The invention relates to the technical field of LNG tanks, and in particularly to a cold inspection test device and method for an insulating layer of an LNG marine tank, and the cold inspection test device for the insulating layer of the LNG marine tank comprises the following parts of a low temperature medium container used to storage a low temperature medium having a boiling point less than or equal to minus 163 DEG C; a first branch, of which the inlet end is communicated with the low temperature medium container, and the outlet end is communicated with the LNG tank, wherein the first branch is provided with a vaporizer and a first regulating valve, the vaporizer is used to vaporize a liquid low temperature medium into a gas low temperature medium, and the first regulating valve is communicated with the output end of the vaporize to control the transmission of the gas low temperature medium flowing in the first branch; and a second branch, of which the inlet end is communicated withthe low temperature medium container, and the outlet end is communicated with the LNG tank to transmit the liquid low temperature medium to the LNG tank, wherein the second branch is provided with asecond regulating valve used to control the transmission of the liquid low temperature medium flowing in the second branch. The cold inspection test device and method provided by the invention facilitate the technical personnel to effectively detect the insulating layer of the LNG tank.

Description

technical field [0001] The invention relates to the technical field of LNG storage tanks, in particular to a cold inspection test device and method for an insulation layer of an LNG marine storage tank. Background technique [0002] The main component of liquefied natural gas (LNG) is methane. Through low-temperature refrigeration technology, the natural gas is cooled to <-164°C at atmospheric pressure to make it liquefied. Since the critical temperature of LNG is much lower than the ambient temperature, it can only be transported and stored under fully refrigerated conditions, that is, transported at atmospheric boiling point (-164°C). LNG storage tanks are cryogenic storage tanks used to store liquefied natural gas. [0003] The insulation layer of LNG storage tanks in the prior art is generally constructed in the storage tank manufacturing plant, inspected at room temperature and provided with a 5-year guarantee; while the construction period of the LNG storage tank ...

Claims

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Application Information

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IPC IPC(8): G01N25/14
CPCG01N25/142
Inventor 张林孟昌顺朱月坤
Owner 南通中集太平洋海洋工程有限公司
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