JP2014500937A - COOLING DEVICE AND AIR SEPARATION DEVICE BY CRYSTAL DRYING EQUIPPED WITH COOLING DEVICE - Google Patents

COOLING DEVICE AND AIR SEPARATION DEVICE BY CRYSTAL DRYING EQUIPPED WITH COOLING DEVICE Download PDF

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JP2014500937A
JP2014500937A JP2013519137A JP2013519137A JP2014500937A JP 2014500937 A JP2014500937 A JP 2014500937A JP 2013519137 A JP2013519137 A JP 2013519137A JP 2013519137 A JP2013519137 A JP 2013519137A JP 2014500937 A JP2014500937 A JP 2014500937A
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カバーニュ、パトリス
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レール・リキード−ソシエテ・アノニム・プール・レテュード・エ・レクスプロワタシオン・デ・プロセデ・ジョルジュ・クロード
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
    • F25J3/04157—Afterstage cooling and so-called "pre-cooling" of the feed air upstream the air purification unit and main heat exchange line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
    • F25J3/04187—Cooling of the purified feed air by recuperative heat-exchange; Heat-exchange with product streams
    • F25J3/04218—Parallel arrangement of the main heat exchange line in cores having different functions, e.g. in low pressure and high pressure cores
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04763—Start-up or control of the process; Details of the apparatus used
    • F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
    • F25J3/0489—Modularity and arrangement of parts of the air fractionation unit, in particular of the cold box, e.g. pre-fabrication, assembling and erection, dimensions, horizontal layout "plot"
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2205/00—Processes or apparatus using other separation and/or other processing means
    • F25J2205/30—Processes or apparatus using other separation and/or other processing means using a washing, e.g. "scrubbing" or bubble column for purification purposes
    • F25J2205/32—Processes or apparatus using other separation and/or other processing means using a washing, e.g. "scrubbing" or bubble column for purification purposes as direct contact cooling tower to produce a cooled gas stream, e.g. direct contact after cooler [DCAC]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2205/00—Processes or apparatus using other separation and/or other processing means
    • F25J2205/30—Processes or apparatus using other separation and/or other processing means using a washing, e.g. "scrubbing" or bubble column for purification purposes
    • F25J2205/34—Processes or apparatus using other separation and/or other processing means using a washing, e.g. "scrubbing" or bubble column for purification purposes as evaporative cooling tower to produce chilled water, e.g. evaporative water chiller [EWC]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
    • F25J2290/12—Particular process parameters like pressure, temperature, ratios
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
    • F25J2290/42—Modularity, pre-fabrication of modules, assembling and erection, horizontal layout, i.e. plot plan, and vertical arrangement of parts of the cryogenic unit, e.g. of the cold box

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

本発明は、カラムシステムで冷却される空気と熱交換によってカラムシステムから生じる窒素を加熱可能な交換ライン（３Ａ，３Ｂ）、及び、タワーの頂上に送られ、冷却される水及び空気蒸留カラム（９）システムから生じる窒素間の熱及び質量交換のための冷却タワー（１）からなり、タワーの下部は窒素配管に接続される入口を備え、そして、窒素配管は熱するカラムシステムにより冷却される空気と熱交換によりカラムシステムから生じた窒素を加熱することが可能である交換ライン（３Ａ，３Ｂ）の少なくとも一の交換本体に接続され、タワーが、交換ラインの少なくとも一部より上に配置される冷却装置に関する。
【選択図】図１The present invention relates to an exchange line (3A, 3B) capable of heating nitrogen generated from the column system by heat exchange with air cooled in the column system, and a water and air distillation column (cooled) sent to the top of the tower and cooled ( 9) Consists of a cooling tower (1) for heat and mass exchange between nitrogen originating from the system, the lower part of the tower has an inlet connected to the nitrogen piping, and the nitrogen piping is cooled by a heated column system Connected to at least one exchange body of exchange lines (3A, 3B) capable of heating the nitrogen generated from the column system by heat exchange with air, the tower being arranged above at least part of the exchange line The present invention relates to a cooling device.
[Selection] Figure 1

Description

本発明は、冷却装置及びこのような冷却装置を備える空気蒸留による空気分離装置に関する。   The present invention relates to a cooling device and an air separation device by air distillation equipped with such a cooling device.

フランクケリーによる「工業ガスハンドブック（Industrial Gas Handbook）」、CRCプレス、１１２頁から１１３頁は、第１タワーにおいて、水と直接接触により、蒸留システムで空気分離を目的とされる空気を冷却する冷却タワーの使用方法を説明する。空気は、次に、二酸化炭素に関して乾燥及び精製される精製システムへ導かれる。冷却に用いられる水は、明らかに第１タワーで加熱される。それを冷却し、且つ、このようにそれを第１タワーへ再循環可能とするために、水は、空気蒸留システムから来る窒素と直接接触によって第２タワーで冷却される。第２タワーの上流で、窒素は、蒸留される空気が冷却される交換ラインで加熱される。ケリーが指摘するように、この窒素の流れは、蒸留空気のかなりの割合を構成する。 Frank Kelly's "Industrial Gas Handbook", CRC Press, pages 112-113, cooling the first tower to cool air intended for air separation in a distillation system by direct contact with water Explain how to use the tower. The air is then directed to a purification system that is dried and purified with respect to carbon dioxide. The water used for cooling is obviously heated in the first tower. In order to cool it and thus recirculate it to the first tower, the water is cooled in the second tower by direct contact with nitrogen coming from the air distillation system. Upstream of the second tower, the nitrogen is heated in an exchange line where the air to be distilled is cooled. As Kelly points out, this nitrogen stream constitutes a significant proportion of distilled air.

ＥＰ−Ａ−１６６６８２２は、地面に位置する第１及び第２タワーを示し、第２タワーは、メイン交換ラインの出口の近くである。   EP-A-1666822 shows first and second towers located on the ground, the second tower being near the exit of the main exchange line.

第２タワーで得られる氷水を第１タワーへ移送するために用いられるポンプは、一般的に第２タワーの傍で地面に据え付けられる。   Pumps used to transfer ice water obtained in the second tower to the first tower are generally installed on the ground beside the second tower.

第２タワーは、円形又は方形の断面を有し、鋼鉄又はコンクリートで形成される。   The second tower has a circular or square cross section and is formed of steel or concrete.

例えば、空気燃焼のために酸素を供給することを予定された空気分離装置により低圧窒素を製造する方法の場合においては、窒素及び水間に熱交換が行われる第２タワーへのみ接続される低圧カラム（及び、それゆえ空気コンプレッサーの）の圧力が設定されるため、交換ラインを去ってこの第２タワーに向かう残余窒素のラインにおける圧力降下は、臨界となる。   For example, in the case of a method for producing low-pressure nitrogen with an air separator intended to supply oxygen for air combustion, the low-pressure connected only to the second tower where heat exchange takes place between nitrogen and water. Since the pressure of the column (and therefore of the air compressor) is set, the pressure drop in the residual nitrogen line leaving the exchange line towards this second tower becomes critical.

円形又は方形の断面のタワーは、例えば、直接タワーが入る残余窒素ラインを許可するために、配管エルボを有さず、且つ、管の最小長さを有してメイン交換ラインの屋根の高さに据え付けられ、これら双方の特徴が、圧力降下を発生させる。   A tower with a circular or square cross section, for example, does not have a pipe elbow to allow a residual nitrogen line directly into the tower and has a minimum pipe length and a roof height of the main exchange line. Both of these features generate a pressure drop.

このタワーは、鋼鉄、コンクリートの又はプラスチックにより形成される。   This tower is made of steel, concrete or plastic.

タワーは、好ましくは、交換ラインが設置される外部ケーシングの構造の連続によって、又は、他の適当な支持手段によって支持される。   The tower is preferably supported by a continuation of the structure of the outer casing in which the exchange line is installed, or by other suitable support means.

本発明を用いることによって、３ｍｂａｒによる圧力降下の減少が可能となり、そして、その結果、３ｍｂａｒによって低圧カラムの、しかも４ｍｂａｒによって中圧カラムの圧力が減少する。   By using the present invention, it is possible to reduce the pressure drop by 3 mbar and, as a result, the pressure of the low pressure column by 3 mbar and the pressure of the medium pressure column by 4 mbar.

この圧力の減少は、タワーが地面高さにおいて設置される従来技術と比較して、交換ラインから冷却タワーへ窒素を導く配管の３つの配管エルボの除去による結果である。   This reduction in pressure is the result of the removal of three piping elbows in the piping that leads nitrogen from the exchange line to the cooling tower as compared to the prior art where the tower is installed at ground level.

本発明の一つの目的は、カラムシステム行きである冷却される空気との熱交換によって、カラムシステムから来る窒素を加熱することが可能な交換ライン、及び、タワーの頂上へ送られる冷却される水及び空気蒸留カラムシステムから来る窒素間の熱及び質量の交換を可能とする冷却タワーからなり、タワーの下部は、窒素配管へ接続される入口を備え、窒素配管は、カラムシステム行きである冷却される空気との熱交換によってカラムシステムから来る窒素を加熱することが可能な、少なくとも一つの交換ラインの交換本体に接続され、タワーが交換ラインの少なくとも一部上に位置されることを特徴とする冷却装置を備えることである。   One object of the present invention is an exchange line capable of heating the nitrogen coming from the column system by heat exchange with the cooled air destined for the column system, and the cooled water sent to the top of the tower. And a cooling tower that allows heat and mass exchange between the nitrogen coming from the air distillation column system, the lower part of the tower is equipped with an inlet connected to the nitrogen piping, which is cooled to the column system Connected to the exchange body of at least one exchange line capable of heating the nitrogen coming from the column system by heat exchange with the air, and the tower is located on at least a part of the exchange line Providing a cooling device.

他の任意の特徴によれば、
・タワーは、交換ラインの少なくとも一部に支持され、
・タワーは、交換ラインの少なくとも一部に据え付けられる構造によって支持され、
・タワーの最低位置は、交換本体又は複数の本体より上であり、
・窒素配管は冷却タワーのタンクより上の位置へ接続され、
・装置は、各々がいくつかの交換本体を備える二つの交換ラインを備え、二つの交換ラインは、好ましくは、実質的に同じ高さを有し、
・タワーは、二つの交換ラインに据え付けられる構造によって支持され、
・タワーは、二つの交換ライン間のスペースより上に位置され、
・二つの交換ラインへ接続される少なくとも一の空気入口配管は、タワーの下のスペースを通って通過し、
・窒素配管は、交換本体の上部へ接続され、
・窒素パイプは、窒素が、下方へ導かれることなく、タワーへ到達するように配置され、
・窒素配管は、交換本体及び窒素配管間に、最大で一つのシングル配管エルボを備え、好ましくは配管エルボを有さず、
・カラムシステムは、中圧カラム及び低圧カラムを備え、そして、低圧カラムは窒素をそれに供給する交換ラインの本体に接続される。 According to other optional features
The tower is supported by at least part of the exchange line,
The tower is supported by a structure installed on at least part of the exchange line;
-The lowest position of the tower is above the replacement body or multiple bodies,
・ The nitrogen pipe is connected to a position above the tank of the cooling tower,
The device comprises two exchange lines, each comprising several exchange bodies, the two exchange lines preferably having substantially the same height;
The tower is supported by a structure that is installed on two exchange lines,
The tower is located above the space between the two exchange lines,
At least one air inlet pipe connected to the two exchange lines passes through the space under the tower,
・ Nitrogen piping is connected to the top of the replacement body.
The nitrogen pipe is arranged so that the nitrogen can reach the tower without being led down;
・ Nitrogen piping is equipped with a single piping elbow at the maximum between the replacement body and nitrogen piping, preferably without piping elbow,
The column system comprises an intermediate pressure column and a low pressure column, and the low pressure column is connected to the body of the exchange line that supplies nitrogen to it.

本発明の他の目的は、請求項１乃至請求項１２の一で請求される装置、カラムシステム、交換ラインへ空気を導く配管、交換ラインから空気を運搬する配管、及び、交換ラインからカラムシステムへ空気を運搬する配管を備え、窒素配管がカラムシステムへ接続される、深冷蒸留による空気分離装置を提供することである。   Another object of the present invention is to provide an apparatus claimed in one of claims 1 to 12, a column system, a pipe for guiding air to the exchange line, a pipe for carrying air from the exchange line, and a column system from the exchange line. It is intended to provide an air separation apparatus by cryogenic distillation, which is provided with a pipe for carrying air to the pipe and a nitrogen pipe is connected to the column system.

本発明の他の目的は、請求項１乃至請求項１２の一で請求される装置を用い、空気がタワー及び交換ラインで冷却され、カラムシステムで分離され、窒素がカラムシステムから交換ラインへ及び交換ラインからタワーへ送られる、深冷蒸留による空気分離方法を提供することである。   Another object of the present invention is to use the apparatus as claimed in one of claims 1 to 12, wherein the air is cooled in the tower and the exchange line, separated in the column system, and nitrogen is passed from the column system to the exchange line. It is to provide a method for separating air by cryogenic distillation sent from the exchange line to the tower.

好ましくは、交換本体の出口及びタワーの入口間の窒素配管の圧力降下は、７ｍｂａｒより小さく、好ましくは、６ｍｂａｒより小さい。   Preferably, the pressure drop in the nitrogen pipe between the outlet of the exchange body and the inlet of the tower is less than 7 mbar, preferably less than 6 mbar.

本発明は、深冷蒸留によって空気を分離する装置を組み込んだ本発明に係る装置を描く図面に関してより詳細に記述される。   The invention will be described in more detail with reference to the drawing depicting a device according to the invention incorporating a device for separating air by cryogenic distillation.

冷却装置は、タワー１、二つの低圧交換ライン３Ａ,３Ｂ、及び、一つの高圧交換ライン５を備えている。空気分離装置は、さらに、空気タービン７、蒸留カラム９，１１、並びに、一組の配管及びバルブを備えている。   The cooling device includes a tower 1, two low-pressure exchange lines 3 </ b> A and 3 </ b> B, and one high-pressure exchange line 5. The air separation device further includes an air turbine 7, distillation columns 9 and 11, and a set of piping and valves.

空気は、タワー（不図示）において、水と直接接触によって冷却され、精製装置で精製され、交換ライン３Ａ，３Ｂで冷却され、少なくとも一つのタービン７を通って膨張され、そして、分離されるためにカラム９に送られる。カラム９において製造される流体は、カラム９より低圧で作動されるカラム１１に送られる。カラム１１から来る、製造された窒素は、交換ライン３Ａ，３Ｂで加熱され、空気を冷却することを目的とされる水を冷却する冷却タワー１へ導かれる。   The air is cooled in direct contact with water in a tower (not shown), purified in a refiner, cooled in exchange lines 3A, 3B, expanded through at least one turbine 7 and separated. To column 9. The fluid produced in the column 9 is sent to a column 11 that is operated at a lower pressure than the column 9. The produced nitrogen coming from the column 11 is heated in the exchange lines 3A, 3B and led to a cooling tower 1 which cools the water intended to cool the air.

交換ライン３Ａ，３Ｂは、低圧流体交換機であるとともに、スペースによって分離される。各交換ラインは、冷却される空気及び加熱される窒素を受ける特定数の本体（この例において８）を備える。   The exchange lines 3A and 3B are low-pressure fluid exchangers and are separated by a space. Each exchange line comprises a specific number of bodies (8 in this example) that receive the cooled air and heated nitrogen.

加熱された窒素は、タワー１の底部より上に数メートルで出てくる配管１５で収集される。窒素配管１５は、他の配管よりも高いことから、結果、タワー１へ接続することが簡単となる。交換本体及びタワー間の窒素配管１５の圧力降下は、７ｍｂａｒよりも少なく、好ましくは、６ｍｂａｒよりも少ない。   The heated nitrogen is collected by a pipe 15 coming out several meters above the bottom of the tower 1. Since the nitrogen pipe 15 is higher than the other pipes, it is easy to connect to the tower 1 as a result. The pressure drop of the nitrogen pipe 15 between the exchange body and the tower is less than 7 mbar, preferably less than 6 mbar.

タワー１は、２つの交換ライン３Ａ，３Ｂの端部に据えられる構造１３によって支持される。   The tower 1 is supported by a structure 13 installed at the ends of the two exchange lines 3A, 3B.

タワーで冷却される水は、精製プロセスの上流で空気を冷却するために用いられる。   The water cooled in the tower is used to cool the air upstream of the purification process.

ちょうど一つの交換ラインがあるところで、構造１３は地面上又はいくつかの他の要素上に据えつけられる。   Where there is just one exchange line, the structure 13 is installed on the ground or on some other element.

水の入口及び出口配管は、図面において図示していない。   The water inlet and outlet pipes are not shown in the drawing.

Claims (15)

交換ライン（３Ａ，３Ｂ）、及び、冷却タワー（１）からなる冷却装置であって、
前記交換ライン（３Ａ，３Ｂ）は、カラムシステム行きである冷却される空気との熱交換によって前記カラムシステムから来る窒素を加熱することが可能であり、前記冷却タワー（１）は、前記タワーの頂上へ送られて冷却される水と空気蒸留カラム（９，１１）システムから来る窒素との間の熱及び質量を交換することが可能であり、前記タワーの下部は窒素配管（１５）に接続される入口を備え、そして、前記窒素配管は前記交換ラインの少なくとも一の交換本体に接続され、
前記タワーが、前記交換ラインの少なくとも一部上に位置されることを特徴とする冷却装置。 A cooling device comprising an exchange line (3A, 3B) and a cooling tower (1),
The exchange line (3A, 3B) can heat nitrogen coming from the column system by heat exchange with the cooled air destined for the column system, and the cooling tower (1) It is possible to exchange heat and mass between the water sent to the top and cooled and the nitrogen coming from the air distillation column (9, 11) system, the lower part of the tower is connected to a nitrogen pipe (15) And the nitrogen pipe is connected to at least one exchange body of the exchange line;
The cooling apparatus, wherein the tower is located on at least a part of the exchange line. 前記タワー（１）は前記交換ライン（３Ａ，３Ｂ）の少なくとも一部に支持される、請求項１で請求される装置。   Apparatus as claimed in claim 1, wherein said tower (1) is supported on at least a part of said exchange line (3A, 3B). 前記タワー（１）は、前記交換ライン（３Ａ，３Ｂ）の少なくとも一部に据え付けられた構造（１３）によって支持される、請求項１又は請求項２で請求される装置。   3. Apparatus as claimed in claim 1 or claim 2, wherein the tower (1) is supported by a structure (13) installed in at least a part of the exchange line (3A, 3B). 前記タワーの前記最低位置は前記交換本体又は複数の本体より上である、先行する請求項の一で請求される装置。   The apparatus as claimed in one of the preceding claims, wherein the lowest position of the tower is above the exchange body or bodies. 前記窒素配管は、前記冷却タワー（１）の前記タンクより上の位置に接続される、先行する請求項の一で請求される装置。   The apparatus as claimed in one of the preceding claims, wherein the nitrogen pipe is connected to a position above the tank of the cooling tower (1). それぞれがいくつかの交換本体を備える２つの交換ライン（３Ａ，３Ｂ）を備え、前記２つの交換ラインは、好ましくは、実質的に同じ高さを有する、先行する請求項の一で請求される装置。   Claimed in one of the preceding claims, comprising two exchange lines (3A, 3B) each comprising a number of exchange bodies, said two exchange lines preferably having substantially the same height apparatus. 前記タワー（１）は、前記２つの交換ライン（３Ａ，３Ｂ）に据え付けられた構造（１３）によって支持される、請求項６で請求される装置。   7. The device as claimed in claim 6, wherein the tower (1) is supported by a structure (13) installed in the two exchange lines (3A, 3B). 前記タワー（１）は、前記２つの交換ライン（３Ａ，３Ｂ）間のスペースより上に位置される、請求項６又は請求項７で請求される装置。   The device as claimed in claim 6 or claim 7, wherein the tower (1) is located above the space between the two exchange lines (3A, 3B). 前記二つの交換ライン（３Ａ，３Ｂ）と接続される少なくとも一つの空気入口配管は、前記タワーの下部の前記スペースを通って通過する、請求項８で請求される装置。   9. The device as claimed in claim 8, wherein at least one air inlet line connected to the two exchange lines (3A, 3B) passes through the space below the tower. 前記窒素配管は、前記交換本体の上部と接続される、先行する請求項の一つで請求される装置。   The apparatus as claimed in one of the preceding claims, wherein the nitrogen pipe is connected to the upper part of the exchange body. 前記窒素配管は、前記窒素が下方に導かれることなく前記タワー（１）に到達するように配置される、請求項１０で請求される装置。   11. Apparatus as claimed in claim 10, wherein the nitrogen piping is arranged such that the nitrogen reaches the tower (1) without being led downward. 前記窒素配管は、前記交換本体及び前記窒素配管間で、多くても一つのシングル配管エルボを備える、請求項１０又は請求項１１で請求される装置。   12. Apparatus as claimed in claim 10 or claim 11, wherein the nitrogen piping comprises at most one single piping elbow between the replacement body and the nitrogen piping. 先行する請求項の一で請求される装置と、カラム（９，１１）システムと、前記交換ライン（３Ａ，３Ｂ）へ空気を導く配管と、前記交換ラインから空気を導く配管と、前記交換ラインから前記カラムシステムへ空気を導く配管と、を備え、前記窒素配管は前記カラムシステムへ接続される、深冷蒸留による空気分離装置。   The apparatus claimed in one of the preceding claims, a column (9, 11) system, a pipe for guiding air to the exchange line (3A, 3B), a pipe for guiding air from the exchange line, and the exchange line An air separation device by cryogenic distillation, wherein the nitrogen piping is connected to the column system. 前述した請求項の一つで請求される装置を用い、空気が前記タワー及び前記交換ラインで冷却され、カラムシステムで分離され、前記窒素が前記カラムシステムから前記交換ラインへ、及び、前記交換ラインから前記タワーへ送られる、深冷蒸留にる空気分離方法。   Using the apparatus as claimed in one of the preceding claims, air is cooled in the tower and the exchange line and separated in a column system, the nitrogen from the column system to the exchange line and the exchange line The air separation method which is sent to the said tower by cryogenic distillation. 前記交換本体の前記出口及び前記タワーの前記入口間の前記窒素配管内の前記圧力降下は、７ｍｂａｒよりも小さく、好ましくは６ｍｂａｒよりも小さい、請求項１４で請求される方法。   15. The method as claimed in claim 14, wherein the pressure drop in the nitrogen pipe between the outlet of the exchange body and the inlet of the tower is less than 7 mbar, preferably less than 6 mbar.
JP2013519137A 2010-07-13 2011-07-12 COOLING DEVICE AND AIR SEPARATION DEVICE BY CRYSTAL DRYING EQUIPPED WITH COOLING DEVICE Expired - Fee Related JP5902161B2 (en)

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