TW436596B - Lowline system and method for transferring cryogenic fluids - Google Patents
Lowline system and method for transferring cryogenic fluids Download PDFInfo
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- TW436596B TW436596B TW088112008A TW88112008A TW436596B TW 436596 B TW436596 B TW 436596B TW 088112008 A TW088112008 A TW 088112008A TW 88112008 A TW88112008 A TW 88112008A TW 436596 B TW436596 B TW 436596B
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- 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
- F16L59/04—Arrangements using dry fillers, e.g. using slag wool which is added to the object to be insulated by pouring, spreading, spraying or the like
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
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- 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
- F16L59/06—Arrangements using an air layer or vacuum
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
- F17C1/002—Storage in barges or on ships
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/004—Details of vessels or of the filling or discharging of vessels for large storage vessels not under pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
- F17C7/02—Discharging liquefied gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/03—Thermal insulations
- F17C2203/0304—Thermal insulations by solid means
- F17C2203/0325—Aerogel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/03—Thermal insulations
- F17C2203/0304—Thermal insulations by solid means
- F17C2203/0329—Foam
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0634—Materials for walls or layers thereof
- F17C2203/0678—Concrete
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0352—Pipes
- F17C2205/0355—Insulation thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
- F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
- F17C2223/033—Small pressure, e.g. for liquefied gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
- F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
- F17C2225/0146—Two-phase
- F17C2225/0153—Liquefied gas, e.g. LPG, GPL
- F17C2225/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
- F17C2225/03—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the pressure level
- F17C2225/033—Small pressure, e.g. for liquefied gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/03—Dealing with losses
- F17C2260/031—Dealing with losses due to heat transfer
- F17C2260/033—Dealing with losses due to heat transfer by enhancing insulation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0102—Applications for fluid transport or storage on or in the water
- F17C2270/0105—Ships
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0102—Applications for fluid transport or storage on or in the water
- F17C2270/0118—Offshore
- F17C2270/0123—Terminals
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0134—Applications for fluid transport or storage placed above the ground
- F17C2270/0136—Terminals
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Pipeline Systems (AREA)
- Thermal Insulation (AREA)
- Joints Allowing Movement (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Description
436596 第88112008號專利申請案 中文說明書修正頁(89年6月) $ 1 1 五、發明説明(彳) '- 本發明係關於一種輸送低溫流體之流送管系統及方法, 並且在一万面係關於一種在離岸接收/裝裁站與岸上設施 之間,通過水密,絕緣管線總成,輪送低溫流體,諸如液 化天然氣(LNG)之系統及方法,其中一管線位於另一之 内’以提供-循環料,藉以在無低㉟流體輸送之間隔, 使管線總成保持冷卻。而且,水密管線總成可予以安裝在 水下,埋在或靠在海底,其中總成可經過相對長距離,例 如一至六公里,而不妨礙海面交通。 在世界很多遙遠地區生產大量天然氣(〒烷)。在其可予 以經濟運輸至市場之情形,此氣體具有重大價值。在生產 區為合理接近市場,並且在二者間.之地形允許之情形,氣 體可通過浸沒及/或陸上輸送管予以運輸。然而,在氣體 係在敷設輸送管為不可行或經濟上成本過高之地點生產之 情形,必須使用其他技術將此氣體送至市場β 經濟部中央標準局貝工消費合作杜印製 I m I I In ji ^^1 ^^1 ^^1------ ^ V (請先閲讀背面之注意事項再填寫本頁) 或許此等技術之最常使用者,涉及在現場將氣體液化, 然後並在航海船隻上之特別設計之貯槽,將液化天然氣或 "LNG"運輸至市場。要形成LNG,將天然氣壓縮,並冷卻 至低溫(例如-160。〇,藉以實際增加在貯槽中所可承載氣 體之量。船隻一經到達其目的地,將卸載至岸上貯 槽,LNG然後可依需要自其重新汽化,並通過輸送,管等運 輸至最後使用者。 在裝載LNG至船隻及自其卸載,均極為重要的是,所使 用供在船隻與岸上(諸)貯槽之間輸送LNG之流送管系統’ 為一種在開始裝載/卸載操作前,能重新冷卻至低溫,然 本紙浪尺度巾ϋ ϋ 經濟部智慧財產局員工消費合作社印製 436596 A? --- -- B? ~---- 五、發明說明(2 ) 後並在輸送操作時及在連績,輸送操作間之間隔;亦即在 完成輸送操作與開始另一輸送操作間之時間間隔,保持此 等低溫。 在二各需約1 2小時之連續裝載/卸載操作間之間隔,可 能自相對短時間(亦即一天)至顯著較長期間(亦即3至?天 或更多)不等。如精於此項技藝者將會瞭解,由於管線然 後將必須在每一輸送操作前’予以重新冷卻,故在此等間 隔必要避免輸送管線之重複加溫。這將會很耗費時間,其 將會在船隻之裝載/卸載導致實際之延遲,其復將會實際 增加LNG之運輸成本,而且,管線之任何重複加溫及冷 卻’在管線引起應力,其復可能導致系統之早期失效。 在已知之此型先前技藝流送管系統,流送管系統在最初 予以冷卻,然後並使LNG自岸邊循環通過一主輸送管線, 然後並通過一復沿主流送管,並在其外面延伸之單獨回流 管線回至岸邊,藉以保持在低溫。正常爲在—般爲3_7天 之空載期間,在可能僅持續! 2小時之連續輸送操作之間, 保持LNG之此種循環〇在實際輸送操作時,通過二循環管 線之流動可爲在一方向,因而二管線均可使用於輸送低溫 /儿體至船隻’或自其輸送低溫流體。 一般爲,二個別循環管線均予以絕緣,以使熱洩漏至輸 送管線内始終爲最少,藉以防止LNG在輸送管線内之過度 汽化。雖然此等流送管系統爲已知,並且在過去成功發揮 功fib,但大多數具有缺點,而在很多環境有損於其經濟使 用0 -5- 本紙張尺度適闬中國國家標準(CNS)A4規格(^;_297公爱) I---li — — III— — --------訂-- ------ I (請先閱讀背面之注意事項V 寫本頁> 436596
經濟部智慧財產局員工消費合作社印製 例如,目flij已知之低溫流體(LNG)輸送系統無法浸沒在 欠中,並因此必須予以安裝在岸上貯槽與離岸接收/裝載 站之間所特別構建之台架或堤道。此等台架必須高於水面 足夠问’以排除輸送管線之暴露至水,並且在有些情形, 避免妨礙現有在海水之海上交通。與台架構造關聯之成 本’常要求接收站位於靠近岸邊(例如在1 5 0 〇公尺左右以 内)’其復可说需要疏液新進入航道,及構建另外之港口 設施’以保證吃水深LNG運輸船隻之安全通過。 而且,在空載期間時使LNG循環所使用之回流管線,係 與流送管系統之主輸送管線單獨構成及絕緣,從而顯著增 力口輸送系統之成本,複雜性,及安全顧慮。因之,需要一 種低溫流送管系統,其可予以安裝在水下,因而其不妨礙 海面交通,藉以允許船隻更遠離岸邊裝載/卸載,藉以在 此操作時增加公眾之安全。而且,由於將不必構成台架, 故將會實際減低此種系统之資金成本。 本發明提供一種供輸送低溫流體,例如在離岸接收/裝 載站與岸上設施之間’輸送液化天然氣(LNG)之系統及方 法;流送管系統爲一種可浸沒在水中者,藉以允許接收/ 裝載站位於距岸邊較遠距離,其復在處理吃水深LNG船隻 否則將會需要之區域,免除需要疏浚進入航道及構建昴貴 之港埠設施。 基本上’本案流送管系統係由一主輸送導管所構成,其 位於一由一種耐用,耐磨損材料(例如碳鋼)所構成之外;_外:. 套内,並包括一裝置,供使形成在外套與主輸送導管間之 -6- 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公爱) ;----.--------------訂--------- (請先閱讀背面之注意事項K'-寫本頁) 436596 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明U ) 環形空間絕緣供使環形空間絕緣 絕緣材料所構成(例如膨脹塑膠泡米裝,展:由任何適貪 菩、,七l , m多層絕緣,氣凝勝 寺)或可將具空加至環形空間,或二者可予合併。 -較小直徑回流導管位於主輸送導管之内广並實際延伸 通過此導管。主輸送導管及流$ ' w机等管,在以隨溫度變化而 歷膨脹/收縮之材料構成時,均 . 〜j j巴括裝置,供却立久
彼此及相對於外套膨服及收縮。' B 队%此寺裝置可爲任何適當連 ^裝置,其允許導管在構成主輸送導管及回流導管之相鄰 數段〈各別導管之間膨脹及收縮;例如波紋管,滑動接頭 等。此等導管係以在冷卻至LNG溫度時,在管線總成引起 很少應力之材料(例如稱作Invar<36%鎳-鋼)所構成之情 形,將無需膨脹接頭。 、在操作時,流送管系統在離岸接收/裝載站與岸上設施 之間予以流體相連,並予以浸沒至水中。然後使低溫流體 循環通過位於主輸送導管内之主輸送導管及回流導管,直 到一導管達到低溫《使此循環繼續,直到在船隻與岸上設 μ間開始低溫流體輸送。在其時,使流動通過回流導管之 方向逆反,從而在輸送操作時,予以輸送之低溫流體現在 將會在相同方向流動通過二導管。操作一經完成,通過回 流導管之流動再次逆反’並且低溫流體循環通過系統,以 在不實施輸送操作之間隔,亦即在二連續LNG船隻之裝載 /卸載間之間隔,使系統保持在希望之溫度。 請參照圖式(不一定依照比例),將會較佳瞭解本發明之 實際構造操作’及明顯優點,其中相同圖號標示相同部 本紙張尺度_中國國家標準(Cg)A4規格(21〇 X 297公复) ----.------------------訂·---I---- <請先閲讀背面之注意事項Η ...寫本頁) 經濟部中央標率局貝工消費合作社印製 436596 第88112008號專利申請案 中文說明書修正頁(89年6月) 五、發明説明(5 ) 份,在附圖中: 圖1為一先前技藝流送管系統,使用於航海船隻與岸上 設施之間輸送低溫流體之圖示; 圖2為一根據本發明之流送管系統,使用於航海船隻與 岸上設施之間輸送低溫流體之圖示; 圖3為本發明之低溫,流送管系統之正视圖,部份為剖 面並剖開; 圖4為沿圖3之4-4線所取之剖面圖; 圖5為本發明之另一實施例之剖面圖; 圖6為本發明之又一實施例之透視圖,部份剖開;以及 圖7為正視圖,部份為剖面,例示圖3之流送管系統之一 端 〇 元件符號說明 10 船隻 23 回流導管 11 岸邊之貯槽設施 24 波紋管 12 貯槽 25 滑動接頭 13 接收/裝載站 25a滑動接頭 14 流送管 26 絕緣體 15 流送管系統 27 條狀絕緣體 16 流送管 28 混凝土 17 台架 29 圓筒 19 岸邊 30 通道 20 主輸送導管 40 蓋 21 外套 41 管線 22 中心器 42 閥 22a環形空間 -8- 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) ---^------f.------IT------0 (請先閲讀背面之注意事項再填寫本頁) 436596 第88112008號專利申請案 中文說明書修正頁(89年6月) 五、發明説明(5a ) 更特別請參照圖式,囷1例示一供在航海船隻1 〇與在岸 邊之(諸)貯槽1 1之間輸送低溫流體,亦即液化天然氣 (LNG)之代表性先前技藝系統。船隻丨〇之型式為有許多特 殊別設計,儲存LNG之貯槽1 2。船隻1 0停泊至接收/裝載 站13,其為一永久結構,予以構成及支承在距岸邊若干距 離。二流送管14 ’ 16自岸上設施丨1延伸至船隻1 〇,並且 如將會瞭解’二者均予以在水面以上支承在台架丨7上。低 溫流體,例如LNG ’予以循環通過管線1 4及i 6,以在輪 送操作間之間隔’使管線保持在希望之低溫。在輸送操作 時’可使LNG在希望之方向流動通過管線1 4,丨6。 此型之先前技藝流送管系統,需要敷設及保持二單獨之 管線,亦即14 ’ 16 ’其均暴露至大氣,並且因此二者均必 - - - - - —I- — --- — .-^-1 I --- 二 ___ f請先閲讀背面之注意事項再填寫本頁} 經濟部中央標準局員工消費合作.社印装 -8a -------- 本紙張尺度適用中國國家標準(CNS ) A4規格(210X 297公釐} 颅濟部中央標準局員工消費合作社印製 ^ 436596 第881丨2〇08號專利申請案 中文說明書修正頁(89年6月) 五、發明説明(6 ) 須予以適當絕緣,以防止過度之熱洩漏。構建及保持台架 1 7所涉及之成本可能相當高。而且,代表性台架之長度, 在大多數地點,不僅受所涉及之成本,並且也受在該區域 之海上交通所限制。亦即,台架無法延伸離岸太遠,而不 妨礙海面交通,並且因此在大多數區域將不允許如此。 而且,由於在此型之已知先前技藝輸送系統,構成流送 管14,16之方式,在岸邊與接收站之間,將流送管浸沒在 水中為不切合實際或在技術上可行。絕緣之外表面不提供 保遵以防暴露至水’如果允許暴露至水,將會使絕緣退化 至超過其可使用作為絕緣體之情形。 現請參照圖2 ’例示船隻1 〇停泊在接收/裝載站丨3,其 中在船船隻之貯槽1 2藉本發明之流送管系統1 5予以流體 相連至岸上設施1 1。如圖所例示,系統1 5予以安裝在海 底,埋在一特別準備之溝道(未示),然後並覆蓋泥土,或 僅只不掩埋靠在海底。如以下將予以更完全解釋,lng可 在船隻1 0與在岸邊1 9之設施1 1之間,通過流送管系統1 5 予以裝載或卸載。 現叫參知、圖3,低溫流送管系統1 5係由一主輸送管線戋 導管2 0所構成,其同心位於外外套2丨内,藉以在其間形 成一環形空間2 2。導管2 0可藉定中心器22a(為求清楚, 圖中僅示一)或類似者,予以定中在外套2丨内,其復沿導 管20予以間開。回流管線或導管23位於主輸送導管 内,並延伸通過此導管。如圖示,回流導管位於導管2 〇之 下内表面’並且不需要定中在其内。 -9- 本紙"張尺度適用中国國家標準(2丨297·^· ---請先閱讀背面之注意事項再填寫本頁} 裝. *1Τ A7 B7 436596 ^ 只第^8112008號專利申請案 中文說明書修正頁(89年6月) 五、發明説明(7 ) 由於外套21與主輸送導管20及回流導管23所經歷之溫 度變化有效隔離,故其不經歷任何實際膨脹或收縮。因 之’外套2 1可以數段之堅固及耐侵蝕材料(例如長度4〇_42 对直徑之碳鋼套殼或類似者)作成,其復藉熔接,有螺紋 聯接器等予以接合)。然而,由於主輸送導管2 〇及回流導 管2 3均將會傳送在低溫之流體,故每一導管必要能響應溫 度之改變’彼此獨立並相對於外套21膨脹及收縮。 因之,每一導官2 0,2 3係以數段導管或管路(例如分別為 數段不鋒鋼或類似者,32吋内徑及1〇吋内徑之導管)所構 成’其復藉允許每一導管彼此獨立膨脹及收縮,而不斷裂 或弯折之膨脹接頭予以聯結在一起。可使用允許必要膨脹 之任何接頭。例如,如在此項技藝將會瞭解,可將一波紋 管24熔接或以其他方式固著在導管或導管23之相鄰接 頭之間,或可使用一簡單"滑動接頭,I 25,25a。唯一重要的 是’導管2 0及2 3可膨脹及收縮,以及其可彼此獨立如 此°可容忍少量洩漏自導管2 3進入主輸送導管2 〇,但應 該無洩漏自導管2 〇進入外套2 1。 導管20 ’ 23也可以響應溫度變化而很少經歷膨脹/收縮之 材料構成,(稱作lnvar之36%鎳-鋼,及某些複合材料)。 在以此等材料構成時,導管20 ’ 23將無需膨脹接頭.,代之 為可藉僅只熔接相鄰之數段各別導管在一起予以組裝。 在導管2 0與外套2 1間之環形空間2 2予以絕緣,以實際 減輕熱自周圍環境洩漏進入系統1 5 _。此可以各種方式達 成。例如,環形空間2 2可藉(a)在其中所保持之真空予以 -10- 本紙張尺度適用中國ϋ家料(CNS ) Α4規格(21DX297公疫) I I 裝— 訂·ν (讀先网讀背面之注意事項再填寫本頁} 經濟部中央標準局員工消費合作社印製 436596 A7 B7 經濟部智慧財產局員工消費合作社印裂 五、發明說明(8 ) 抽空:(b)填滿絕緣材料,例如 ^ A 多層絕緣或膨脹塑膠泡涑 26 ;或(c)可合併此二絕緣技術。 ,忍丰 W 亦即,環形空間2 2可予以 場滿一種料狀,可料m㈣Μ, 體27(圖6”其復仍允許在環形空間22内抽眞空。… 可使用任何適當絕緣材料,你丨4户麻μ * 例如多層絕緣體,氣凝膠, 鬆散填充絕緣體,可滲透或封閉“的π 乂对閘細胞膨脹塑膠泡沫等。硃 而,位於環形空間2 2内之任何结珐wα ' ' η <緣材科,將必須諸如仍允 許導管20相對於外套21膨脹。而且,在有些#施例4 套21可予以包封在—層混凝土28内(圖3及4),對系統η 提供穩定性,以防海浪,海流,浮力,或其他力。 在圖5中所例示之實施例,外套2 1以一材料圓筒2 9,例 如結構塑膠等予以替代,其有縱向延伸通道3〇形成在其 中。圓请29位於繞主輸送導管2〇,並且通過通道3〇予以 抽眞空。 在操作時,將低溫流送管系統丨5安裝在一在二點之間輸 送低溫泥體之地點。如圖2中所例示,將浸沒及安裝在海 底之系統1 5連接在離厗接收/裝載站1 3與一在岸邊1 9之設 施1 1之間。如將會瞭解’流送管系統一經安裝,將會留在 定位。主輸送導管2〇及回流導管23之外端可藉可位於離 序站1 3之適當閥系(請見圖7 )予以流體相連,以提供—回 路,供流動通過系統1 5。如圖所示,主導管2 〇之外端藉 一有一供給管線4 1與對其連接之蓋4 〇或類似者予以封 閉’其復有一閥4 2在其中。在閥4 2予以關閉時,LNG將 會自主導管2 〇流入回流管線2 3之開啓端,以提供循環路 -11 - 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) • Ί Ί .. : 裝--------訂---------線 C請先閲讀背面之注意事項一·>寫本頁) 436596 A7 經濟部智慧財產局員工消費合作社印製 B7 五、發明說明(9 ) 徑供LNG。在閥4 2開啓時,LNG將會自供給管線4 1流入主 導管2 0及回流管線2 3。 然後使LNG或其他低溫流體自設施1 1流動,通過導管 20,並通過内回流導管23回至設施11,以使流送管系統 1 5冷卻,並保持在低溫。使流送管系統丨5冷卻及保持在 此等低溫,以及使流送官適當絕緣,藉以使LNG在系統内 之汽化減至最少。而且,請予認知,在有些情形,可使 LNG之此種循環逆反,而不偏離本發明;亦即使LNG流動 通過回流管線2;3,並通過主導管2〇返回。 流送管系統15—經達到其希望溫度,切換系統内之適當 閥系,致使通過主輸送導管2〇之流動及通過回流導管23 者,現在將會在相同方向。亦即,如果船隻1〇爲卸載, LNG將會通過導管20及23流動至在岸邊19之設施16。在 裝載時,所有流動將會自設施i 6至船隻丨〇。使主導管2 〇 内之回流導管23定位,藉以大爲簡化輸送管線系統之構造 及維修,因爲不需要回流導管23之單獨絕緣及安裝。而 且,本案系統15降低操作之成本,藉以提供優於先前技藝 系統之其他優點’因爲進入一單—主導管2〇之總熱戍漏較 小於進入先前技藝系統之二單獨管線之熱洩漏。 雖然本發明之流送管系統業經予以說明爲一可浸沒在水 中’藉以允許接收/裝載站置於距岸邊較大距離(亦即自L 至6公里),但請予認知,其也可予以在水上 類似者,而接收/裝載站可位於靠近岸邊。 -------------裝--------訂----------線 - - ·-·請先閱讀背面之注意事項 Ϋ寫本頁) -12
Claims (1)
- 43b5 96 ; 第88112008號專利申請案 η 中文申請專利範圍修正本y §六、申請專利範圍 經濟部中央標準局員工消費合作社印製 1. 一種輸送低溫流體之流送管 一主輸送導管; @ 一外套,環繞位於主輸送導技 環形空間; S上’並在其問形成〜 裝置,供使在主輸送導管與 緣;以及 套間之環形2間笔 一回冼輸送導管’位於在主… 際通過主輸送導管之長度。飞導管0,並延伸實 2·如申請專利範圍第1項之流送 空間絕緣之裝置包含: 一在整個環形空間之真空, 3.如申請專利範圍第1項之流送 空間絕緣之裝置包含: 實際填滿環形空間之絕緣材料。 4_如申請專利範圍第3項之流送管 係選自多層絕緣.氣凝膠,鬆散:,,其中該絕緣材料 ^ ^ 文真疋絕緣體,可淥诱 細胞膨脹塑膠泡沫,及封閉細 /边 組。 田胞膨脹塑膠泡沫之類 5-如申請專利範圍第!項之流送管系統,其中該主及^ 輸送導管包括裝置’供允許主輸送導管響應溫度; 化’相對於該外套膨脹及收縮。 6.如申請專利範圍第5項之流送管系統,其中該主及回流 輸送導管包含數段導管,並且其中膨脹及收縮裝置各 包含連接在相鄰數段輸送導管間之波紋管。 系統包含: 其中供使該環形 其中供使該環形 —V請先聞讀背面之注意事¾再镇寫本頁j k .訂 本紙铁尺度適用中國國家標準(CNS ) A4規格(210 X 297公釐) 88 88 ABCD ^ 43^596 六、申請專利範圍 7,如申請專利範圍第5項之流送管系統,其中該主及回流 輸达導管包含數段導管,並且其中膨脹及收縮裝置各 包含連接相鄰數段輸送導管之滑動接頭。 8_如申請專利範圍第1至7項任一項之流送管系統’其延 伸在一位於離岸在水中之接收/裝載站與一岸上設施之 間,在"瓦送管系統流體相連岸上設施至離岸接收/裝載 站’並且流送管系統浸沒在水中。 9. 一種自一位於離岸在水中之接收/裝載站及一設施岸上 輸送低溫流體之方法,該方法包含: 將一絕緣王輸送導管流體相.連在接收/裝載站及該設 施之間; 將絕緣主輸送導管浸沒在水中; 使低溫流體在該設施與該接收/裝載站之間循環通過 主輸送導管及一位於主輸送導管内之回流導管,直到 主輸送導管及回流導管達到低溫; 在低溫流體之輸送開始時,使在回流導管内流動之 方向逆反,從而低溫流體將會在相同方向流動通過主 輸送導管及回流導管’直到低溫輸送完成^ 10‘如申請專利範圍第9項之方法,包括: 在該輸送完成時’使在回流導管内流動之方向逆 反,以重新建立循環通過該主輸送導管,藉以在輸送 低溫流體間之期間’使主輸送導管保持在低:β。 -2- 本紙浪尺度適用中國國家榡準(CNS ) Α4况格(210X297公釐) 裝-- (請先閲讀背面之注意事項再填寫本頁) *1Τ 經濟部中央標準局員工消費合作社印策
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-
1998
- 1998-07-16 US US09/116,667 patent/US6012292A/en not_active Expired - Lifetime
-
1999
- 1999-07-08 BR BR9912131-0A patent/BR9912131A/pt active Search and Examination
- 1999-07-08 ID IDW20010364A patent/ID28333A/id unknown
- 1999-07-08 JP JP2000560398A patent/JP4410938B2/ja not_active Expired - Lifetime
- 1999-07-08 EP EP99932345A patent/EP1117962B1/en not_active Expired - Lifetime
- 1999-07-08 AU AU48671/99A patent/AU743323B2/en not_active Expired
- 1999-07-08 TR TR2001/00198T patent/TR200100198T2/xx unknown
- 1999-07-08 CN CN99808701A patent/CN1097193C/zh not_active Expired - Lifetime
- 1999-07-08 WO PCT/US1999/015398 patent/WO2000004321A1/en active IP Right Grant
- 1999-07-08 KR KR1020017000618A patent/KR100643551B1/ko not_active IP Right Cessation
- 1999-07-15 TW TW088112008A patent/TW436596B/zh not_active IP Right Cessation
- 1999-07-15 MY MYPI99002985A patent/MY117509A/en unknown
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2001
- 2001-01-16 NO NO20010267A patent/NO20010267D0/no not_active Application Discontinuation
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2002
- 2002-01-11 HK HK02100203.1A patent/HK1039367B/zh not_active IP Right Cessation
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WO2000004321A9 (en) | 2000-06-22 |
CN1309752A (zh) | 2001-08-22 |
BR9912131A (pt) | 2001-04-10 |
WO2000004321A1 (en) | 2000-01-27 |
AU4867199A (en) | 2000-02-07 |
AU743323B2 (en) | 2002-01-24 |
US6012292A (en) | 2000-01-11 |
ID28333A (id) | 2001-05-10 |
JP4410938B2 (ja) | 2010-02-10 |
CN1097193C (zh) | 2002-12-25 |
HK1039367A1 (en) | 2002-04-19 |
KR100643551B1 (ko) | 2006-11-10 |
MY117509A (en) | 2004-07-31 |
EP1117962A1 (en) | 2001-07-25 |
NO20010267L (no) | 2001-01-16 |
NO20010267D0 (no) | 2001-01-16 |
JP2002520566A (ja) | 2002-07-09 |
HK1039367B (zh) | 2003-08-15 |
TR200100198T2 (tr) | 2001-05-21 |
EP1117962B1 (en) | 2008-07-30 |
EP1117962A4 (en) | 2006-05-03 |
KR20010071915A (ko) | 2001-07-31 |
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