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Storage facility for a liquefied gas

A storage device, a technology for liquefied gas, applied in liquid bottling, gas treatment/storage purposes, gas treatment/storage effects, etc., and can solve problems such as affecting service life

Active Publication Date: 2019-01-15
GAZTRANSPORT & TECHNIGAZ SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]Therefore, unless precautions are taken regarding changes in the temperature of the pump, and especially to monitor the progressive nature of this change, such pumps have the risk of being exposed to Risk of severe thermal shock, which tends to affect its service life

Method used

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  • Storage facility for a liquefied gas
  • Storage facility for a liquefied gas
  • Storage facility for a liquefied gas

Examples

Experimental program
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Embodiment Construction

[0036] In the following description, a pump is described which is accommodated in a liquefied gas storage tank and / or transport tank near the bottom wall of said tank and is intended to be at least partially submerged in a liquefied gas cargo. The bottom wall means the wall, preferably flat overall, in the bottom of the tank relative to the terrestrial gravitational field. The proximity between the pump and the bottom wall depends on the overall size of the pump and on the volume of the tank. The purpose of this proximity is to enable the pump to pump most of the cargo stored in the tank, excluding a possible loss of liquid which represents less than 10% of the volume of the tank.

[0037] Also, the overall geometry of the tank can be of different types. Polyhedral geometries are the most common. Cylindrical, spherical or other geometries are also possible. Furthermore, such tanks may be installed in various structures, such as the double hull of a ship, land installations ...

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PUM

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Abstract

The invention relates to a storage facility for a liquefied gas, comprising: a tank having an interior space delimited by sealed and thermally insulating walls, a pump (10) arranged in the interior space (6) of the tank near a bottom wall (8) of the tank and intended to be immersed at least partially in a cargo of liquefied gas for pumping the cargo of liquefied gas, and a temperature sensor (20)arranged to measure a temperature of the pump or a temperature of a fluid contained in the interior space of the tank at a height located between the lowest point of the pump and the highest point ofthe pump. The use method has the step of determining the temperature of the pump (10) by means of a measurement signal produced by the temperature sensor (20).

Description

technical field [0001] The present invention relates to the field of storage of liquefied gases, in particular to the construction and operation of storage devices for liquefied gases comprising: a defined interior space; and a pump disposed in the interior space of the tank near the bottom wall of the tank and adapted to be at least partially submerged in the liquefied gas cargo to pump the liquefied gas cargo. [0002] In one embodiment, the liquefied gas is a mixture with a high methane content stored at atmospheric pressure at a temperature of about -162°C. Other liquefied gases are also conceivable, in particular ethane, propane, butane or ethylene. It is also possible to store the liquefied gas at a certain pressure, for example at a relative pressure between 2 bar and 20 bar inclusive, and in particular at a relative pressure close to 2 bar. Said tanks can be produced according to various technologies, especially in the form of membrane-integrated tanks or self-suppor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17C6/00F17C9/00
CPCF17C6/00F17C9/00F17C2201/0104F17C2201/0128F17C2201/0157F17C2201/052F17C2203/0304F17C2203/0631F17C2221/033F17C2223/0161F17C2223/033F17C2223/047F17C2227/0142F17C2227/015F17C2227/0178F17C2250/032F17C2250/0439F17C2250/0491F17C2250/0631F17C2250/0636F17C2260/04F17C2265/061F17C2270/0107F17C2270/0123F17C2270/0136F17C2270/0168F17C13/004
Inventor F·伦巴第A·布维尔B·德莱特
Owner GAZTRANSPORT & TECHNIGAZ SA