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A liquefied gas tank with a central hub in the bottom structure

A liquefied gas, structural beam technology, applied in gas processing applications, fixed-capacity gas storage tanks, outer walls of container structures, etc., to achieve the effect of convenient disassembly, easy installation, and avoidance of shear force

Inactive Publication Date: 2013-01-16
NLI INOVATIONS AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is an extremely complex design and requires very fine machining to achieve the required tolerances
Thus the tank will be very expensive
Furthermore, the design would transfer loads from the tanks to the ship structure, which loads are uncontrollable and to some extent unpredictable
If the locking pads are heated above the tank's intended cooling operating temperature, the locking pads will disengage and the tank may roll in an uncontrollable manner within the tank compartment

Method used

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  • A liquefied gas tank with a central hub in the bottom structure
  • A liquefied gas tank with a central hub in the bottom structure
  • A liquefied gas tank with a central hub in the bottom structure

Examples

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Embodiment Construction

[0052] The invention comprises a tank 1 for liquefied gases such as liquefied methane (LNG), liquefied ethane, liquefied propane (LPG) or other liquefied gases. The tank 1 according to the invention is used in a ship or other marine vessel. The term "ship" or "marine vessel" as used in this specification also includes floating and semisubmersible petroleum production or storage vessels. Furthermore, the tank according to the invention can be arranged on a stationary ship structure. The tanks described are designed for use at atmospheric pressure, but pressurized tanks are also contemplated. The tank according to the invention is generally referred to below as cryogenic tank 1 , but the invention is not limited to tanks in the cryogenic range, but for liquefied gases such as the gases mentioned above. The tank 1 for liquefied gas is provided with a tank bottom structure 10 and a tank wall structure 11 which is arranged around a periphery 15 of said tank bottom structure 10 . ...

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PUM

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Abstract

The present invention comprises a tank for liquefied gases or a so-called cryogenic tank (1) with a tank bottom structure (10) and a tank wall structure (11) arranged around a circumference of said tank bottom structure (10), said tank bottom structure (10) provided with a tank bottom hub (2) adapted for being held by a bottom hub retainer (20) on a tank support structural floor (23). The tank is simple to install, cheap in production and handles in an improved manner forces acting on it.

Description

[0001] preface [0002] Worldwide energy demands require that large quantities of fuel be transported from where it is found to consumers. One of the cleanest and most abundant forms of energy in use in practice today is natural gas. Major gas fields are often located far from major consumer markets, requiring the gas to be transported from the field to the consumer. Pipeline transportation is one of the transportation methods that can be considered, however, pipeline systems are very expensive and difficult to use for long-distance transportation. Ship transportation is therefore still a practical solution in gas transportation (especially liquefied gas transportation) applications. [0003] The present invention generally relates to liquefied gas tanks, such as LNG tanks or LPG tanks, but the term "cryogenic tank" is generally used in this description. LNG is usually kept in tanks with a boiling point of about -163°C at atmospheric pressure, continuously evaporating methan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F17C1/00
CPCF17C2221/033F17C2203/0609F17C2260/016F17C2201/0119F17C2221/035F17C2201/0157F17C2203/0621F17C1/002F17C2203/03F17C2201/0147F17C2205/018F17C2221/014F17C2209/221F17C2203/0665F17C2223/0161F17C2205/0323F17C2205/013F17C2227/0135F17C2203/0656F17C2203/013F17C2221/013F17C2223/031F17C2201/032F17C2203/0678F17C2201/052F17C2223/0153F17C2205/0391F17C2203/0604F17C2270/05F17C2270/0105F17C2203/012F17C2203/015F17C2203/0619F17C2260/013F17C2270/0121F17C2227/0178F17C2270/0123F17C2260/011
Inventor C·S·尼古拉森H·H·诺尔
Owner NLI INOVATIONS AS
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