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Method and apparatus for heating a liquefied stream

A technology of liquefied flow and equipment, applied in the direction of lighting and heating equipment, methods of container discharge, equipment discharged from pressure vessels, etc., capable of solving problems such as damage

Inactive Publication Date: 2016-08-24
SHELL INT RES MAATSCHAPPIJ BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] It is foreseeable that the circulation of the heat transfer fluid may be disrupted in the normal operation of the apparatus and methods described in US2010 / 0000233 and US2006 / 0242969

Method used

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  • Method and apparatus for heating a liquefied stream
  • Method and apparatus for heating a liquefied stream
  • Method and apparatus for heating a liquefied stream

Examples

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Embodiment Construction

[0018] For ease of description, a single reference numeral is assigned to a pipeline and to the streams carried in that pipeline. Like reference numerals designate similar parts. Those skilled in the art will readily appreciate that although the present invention has been described with reference to one or more specific combinations of features and aspects, many of these features and aspects are functionally independent of other features and aspects, and as such, they It can be equally or similarly independently applied to other embodiments or combinations.

[0019] In summary, the present invention discloses a method of heating a liquefied stream comprising:

[0020] - flowing the liquefied stream to be heated through a first heat transfer zone comprising a first box in the form of a shell containing a heat transfer fluid, the liquefied stream being arranged inside the first box through The first heat transfer surface is in indirect heat exchange contact with the heat trans...

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PUM

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Abstract

In a closed circuit, the heat transfer fluid is circulated from the first heat transfer area via the downcomer to the second heat transfer area, the first heat transfer area, the downcomer and the second heat transfer area being arranged in the external environment. A first heat transfer region within the first tank includes a first heat transfer surface through which the liquefied stream to be heated is in first indirect heat exchange contact with the heat transfer fluid. The heat transfer fluid is allowed to condense, and a portion of the condensed portion of the heat transfer fluid is allowed to accumulate within the first tank, thereby forming a liquid layer of the heat transfer fluid in a liquid phase within the first tank. Liquid is drawn from the liquid layer and flows through the downcomer into the second heat transfer region. The second heat transfer region includes a second heat transfer surface through which the heat transfer fluid is in second indirect heat exchange contact with the external environment.

Description

technical field [0001] The present invention relates to a method and apparatus for heating a liquefied stream. [0002] The liquefied stream herein has a temperature below ambient temperature. Preferably, the temperature of the liquefied stream is at or below the bubble point of the liquefied stream at a pressure of less than 2 bar absolute, so that the liquid phase remains at that pressure. An example of a liquefied stream in industry that requires heating is liquefied natural gas (LNG). Background technique [0003] Natural gas is an efficient fuel source. However, natural gas is usually extracted at great distances from markets. In this case, an LNG plant at or near the source of the natural gas stream is required to liquefy the natural gas. Natural gas in the form of liquefied natural gas is easier to store and transport over long distances than its gaseous form because it occupies a smaller volume and does not require high pressure storage. [0004] LNG is usually ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F17C7/04F17C9/02F28D15/02F28D1/053F28D7/06
CPCF28B9/02F28D1/05308F28D7/06F28D15/0266F28D2021/0066F28D15/0275F28B1/02F28B9/08F28D15/02F17C9/02F17C2221/033F17C2223/013F17C2225/0123F17C2227/0309F17C2265/05
Inventor R·肯普斯R·兰辛克G·M·P·珀金斯L·J·A·佐特迈耶
Owner SHELL INT RES MAATSCHAPPIJ BV
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