CN103591412A - 一种绝热超低温管 - Google Patents

一种绝热超低温管 Download PDF

Info

Publication number
CN103591412A
CN103591412A CN201310522660.1A CN201310522660A CN103591412A CN 103591412 A CN103591412 A CN 103591412A CN 201310522660 A CN201310522660 A CN 201310522660A CN 103591412 A CN103591412 A CN 103591412A
Authority
CN
China
Prior art keywords
flex
elastic foam
flexible closed
temperature
pore elastic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201310522660.1A
Other languages
English (en)
Inventor
卢占军
邓才荣
安文新
魏华清
沈建荣
方自彪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wison Nantong Heavy Industry Co Ltd
Original Assignee
Wison Nantong Heavy Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wison Nantong Heavy Industry Co Ltd filed Critical Wison Nantong Heavy Industry Co Ltd
Priority to CN201310522660.1A priority Critical patent/CN103591412A/zh
Publication of CN103591412A publication Critical patent/CN103591412A/zh
Pending legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • F16L59/028—Composition or method of fixing a thermally insulating material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/08—Means for preventing radiation, e.g. with metal foil
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/12—Arrangements for supporting insulation from the wall or body insulated, e.g. by means of spacers between pipe and heat-insulating material; Arrangements specially adapted for supporting insulated bodies
    • F16L59/123—Anchoring devices; Fixing arrangements for preventing the relative longitudinal displacement of an inner pipe with respect to an outer pipe, e.g. stress cones

Abstract

一种绝热超低温管，包括管体，管体外部包裹有K-FLEX ST柔性闭孔弹性泡沫，K-FLEX ST柔性闭孔弹性泡沫外部包裹有铝薄膜，铝薄膜外部还包裹有一层K-FLEX ST柔性闭孔弹性泡沫，在第二层K-FLEX ST柔性闭孔弹性泡沫外部用金属环固定包裹层，在整个包裹层外部包裹有铁皮或橡胶材料，本发明工作原理与现有技术相同，但是本发明能够减少周围环境的热量传入LN G低温设备和管道内部,控制LN G冷量损失,确保绝热层外表面温度高于环境的露点温度,保证外表面不凝露。同时,节约能源,保证LN G工作正常运作。

Description

一种绝热超低温管
技术领域
本发明涉及船舶绝缘领域，特别涉及一种绝热超低温管。
背景技术
世界上首座浮式LNG装置坐落于一艘非自航驳船上，是兼具天然气的液化、再气化、储存等功能于一体的驳船，液化装置和再气化模块首次由陆上转移到船舶上。液化装置和再气化模块布置在主甲板，液化装置可以通过管线输送接收岸上的高压天然气，再汽化模块能确保驳船在不接收岸上天然气时，驳船可以作为一个输入终端。
天然气是从气田中开采出来的自然可燃气体,其主要成分为甲烷。LN G(液化天然气)则是气态天然气在常压下通过冷却至-162℃所凝结成的液体。天然气液化后,其体积为液化前的1/625,可以大大节约储运空间和成本,而且具有热值大、性能高等特点。
浮式LNG装置超低温管线绝热施工工艺存在的问题：
工艺是将由陆地输送的天然气经过处理提纯后加压降温，变成液化天然气储存在货罐内，然后进行直接外输到液化天然气运输船上输送。现有装置有两套超低温系统，一是制冷剂系统，二是经装置处理后形成的液化天然气（LNG）系统。这两套系统的主要缺点是外界热流的导入必然引起一些低温液体汽化,逐渐蒸发，从而降低产能。为了减少低温液体的温度损失,确保低温处理及贮运安全可靠,必须采取适当的低温绝热措施。深冷绝热的最终目的是减少周围环境的热量传入LN G低温设备和管道内部,控制LN G冷量损失,确保绝热层外表面温度高于环境的露点温度,保证外表面不凝露。同时,节约能源,保证LN G工作正常运作。热量传递包括热传导、热对流和热辐射三种方式,对于LN G的绝热结构来说,主要存在的是热传导和热对流,因此如何解决传热问题,是绝热结构设计的关键问题。由于LN G设备在运行过程中温度交变范围非常大,超低温和常温交变容易造成LN G设备绝热结构的破坏,因此要对绝热材料和铺层方式进行设计。
发明内容
为了克服上述现有技术的缺陷，本发明的目的在于提供一种绝热超低温管，使用K-FLEX ST柔性闭孔弹性泡沫包裹在低温管上实现低温。
为了达到上述目的，本发明的技术方案为：
一种绝热超低温管，包括管体1，管体外部包裹有K-FLEX ST柔性闭孔弹性泡沫2，K-FLEX ST柔性闭孔弹性泡沫2外部包裹有铝薄膜3，铝薄膜3外部还包裹有一层K-FLEX ST柔性闭孔弹性泡沫2，在第二层K-FLEX ST柔性闭孔弹性泡沫2外部用金属环4固定包裹层，在整个包裹层外部包裹有铁皮或橡胶材料5。
本发明减少周围环境的热量传入LN G低温设备和管道内部,控制LN G冷量损失,确保绝热层外表面温度高于环境的露点温度,保证外表面不凝露。同时,节约能源,保证LN G工作正常运作。
附图说明
附图是本发明的结构示意图。
具体实施方式
下面结合附图对本发明做详细叙述。
参照附图，一种绝热超低温管，包括管体1，管体外部包裹有K-FLEX ST柔性闭孔弹性泡沫2，K-FLEX ST柔性闭孔弹性泡沫2外部包裹有铝薄膜3，铝薄膜3外部还包裹有一层K-FLEX ST柔性闭孔弹性泡沫2，在第二层K-FLEX ST柔性闭孔弹性泡沫2外部用金属环4固定包裹层，在整个包裹层外部包裹有铁皮或橡胶材料5。
本发明的工作原理为：一种绝热超低温管工作原理与现有技术相同，但是本发明能够减少周围环境的热量传入LN G低温设备和管道内部,控制LN G冷量损失,确保绝热层外表面温度高于环境的露点温度,保证外表面不凝露。同时,节约能源,保证LN G工作正常运作。

Claims (1)

1.一种绝热超低温管，其特征在于，包括管体（1），管体（1）外部包裹有K-FLEX ST柔性闭孔弹性泡沫（2），K-FLEX ST柔性闭孔弹性泡沫（2）外部包裹有铝薄膜（3），铝薄膜（3）外部还包裹有一层K-FLEX ST柔性闭孔弹性泡沫（2），在第二层K-FLEX ST柔性闭孔弹性泡沫（2）外部用金属环（4）固定包裹层，在整个包裹层外部包裹有铁皮或橡胶材料（5）。
CN201310522660.1A 2013-10-30 2013-10-30 一种绝热超低温管 Pending CN103591412A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310522660.1A CN103591412A (zh) 2013-10-30 2013-10-30 一种绝热超低温管

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310522660.1A CN103591412A (zh) 2013-10-30 2013-10-30 一种绝热超低温管

Publications (1)

Publication Number Publication Date
CN103591412A true CN103591412A (zh) 2014-02-19

Family

ID=50081656

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310522660.1A Pending CN103591412A (zh) 2013-10-30 2013-10-30 一种绝热超低温管

Country Status (1)

Country Link
CN (1) CN103591412A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104373757A (zh) * 2014-10-30 2015-02-25 无锡同心塑料制品有限公司 一种具有保温层的石油管道

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3812886A (en) * 1972-07-05 1974-05-28 Midwesco Enterprise Inc Cryogenic insulation
JP2002039495A (ja) * 2000-07-31 2002-02-06 Tokyo Gas Co Ltd 低温流体輸送配管の断熱構造
CN2536885Y (zh) * 2001-02-27 2003-02-19 钟培辉 改性聚氨酯泡沫塑料深冷绝热新型结构层
JP2004169742A (ja) * 2002-11-18 2004-06-17 Osaka Gas Co Ltd 低温流体輸送装置および施工方法
CN1644972A (zh) * 2004-01-20 2005-07-27 气体运输技术公司 绝热管道
KR20120015404A (ko) * 2010-08-05 2012-02-21 천영호 도시가스용 고압호스의 제조방법
WO2013080081A1 (en) * 2011-12-02 2013-06-06 Unilab S.A.S. Di Lavagna Silvio Massimo & C. New coated elastomers and processes for their preparation
CN203656481U (zh) * 2013-10-30 2014-06-18 惠生（南通）重工有限公司 一种超低温绝热管

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3812886A (en) * 1972-07-05 1974-05-28 Midwesco Enterprise Inc Cryogenic insulation
JP2002039495A (ja) * 2000-07-31 2002-02-06 Tokyo Gas Co Ltd 低温流体輸送配管の断熱構造
CN2536885Y (zh) * 2001-02-27 2003-02-19 钟培辉 改性聚氨酯泡沫塑料深冷绝热新型结构层
JP2004169742A (ja) * 2002-11-18 2004-06-17 Osaka Gas Co Ltd 低温流体輸送装置および施工方法
CN1644972A (zh) * 2004-01-20 2005-07-27 气体运输技术公司 绝热管道
KR20120015404A (ko) * 2010-08-05 2012-02-21 천영호 도시가스용 고압호스의 제조방법
WO2013080081A1 (en) * 2011-12-02 2013-06-06 Unilab S.A.S. Di Lavagna Silvio Massimo & C. New coated elastomers and processes for their preparation
CN203656481U (zh) * 2013-10-30 2014-06-18 惠生（南通）重工有限公司 一种超低温绝热管

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
张超逸 等: "LNG海底低温管道探讨", 《天然气与石油》, 31 August 2011 (2011-08-31), pages 6 - 8 *
李雨康 等: "深冷绝热材料的探讨", 《中国海洋平台》, vol. 16, no. 3, 30 June 2001 (2001-06-30), pages 31 - 34 *
王嵘 等: "超低温复合材料的研究进展", 《化工新型材料》, vol. 35, no. 7, 31 July 2007 (2007-07-31), pages 8 - 10 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104373757A (zh) * 2014-10-30 2015-02-25 无锡同心塑料制品有限公司 一种具有保温层的石油管道

Similar Documents

Publication Publication Date Title
RU2013135502A (ru) Блок передаточного туннеля для криогенной текучей среды и его применение
CN103189273A (zh) 用于为船舶提供液化天然气燃料的方法和装置
KR101164087B1 (ko) 재액화 전력 소비량을 절감하기 위한 증발가스 처리장치 및 방법
KR102153624B1 (ko) 선박의 증발가스 처리 시스템 및 방법
KR20200111208A (ko) 가스 유조선을 위한 가스 저장 시설에서 가스를 처리하기 위한 방법 및 시스템
JP2018503035A (ja) Ｌｎｇタンク及びそのタンク接続空間との間に少なくとも１つのパイプを接続するためのシステム
US20080184735A1 (en) Refrigerant storage in lng production
Kim et al. Operation scenario-based design methodology for large-scale storage systems of liquid hydrogen import terminal
CN203656481U (zh) 一种超低温绝热管
US20170191619A1 (en) System and method for storing and transferring a cryogenic liquid
CN103759496B (zh) 小型撬装式液化天然气蒸发气再液化回收装置
KR102351014B1 (ko) Flng의 lng 하역 시스템 및 방법
CN103591412A (zh) 一种绝热超低温管
KR20120126411A (ko) 저온 가스 액화물 운반선의 기화식 하역장치 및 방법
KR101788753B1 (ko) 선박의 증발가스 처리 시스템 및 방법
JP6159641B2 (ja) 極低温推進薬貯蔵装置
KR20130052937A (ko) 증발가스 저장탱크를 갖는 액화가스 운반선
KR20110046945A (ko) 고압가스 분사엔진과 저압가스 분사엔진을 갖는 액화연료가스 추진 선박에 연료가스를 공급하는 시스템
CN109563967B (zh) 气体储存及处理设备
KR101623092B1 (ko) 냉열발전을 이용한 증발가스 재액화 방법 및 장치
Bahgat Proposed method for dealing with boil-off gas on board LNG carriers during loaded passage
KR102543433B1 (ko) Flng의 lng 하역 시스템 및 방법
KR101775041B1 (ko) 부유식 저장장치
KR101681714B1 (ko) 저온 액체화물 저장탱크, 이를 구비한 해상 구조물 및 저온 액체화물 저장탱크의 쿨다운 및 워밍업 방법
KR20160129403A (ko) 부유식 해양 구조물에서의 lng 하역 시스템 및 방법

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20140219