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JP2007078326A - Evaporator - Google Patents

Evaporator Download PDF

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Publication number
JP2007078326A
JP2007078326A JP2005270742A JP2005270742A JP2007078326A JP 2007078326 A JP2007078326 A JP 2007078326A JP 2005270742 A JP2005270742 A JP 2005270742A JP 2005270742 A JP2005270742 A JP 2005270742A JP 2007078326 A JP2007078326 A JP 2007078326A
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Japan
Prior art keywords
heat transfer
units
transfer unit
fluid passage
transfer units
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JP2005270742A
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Japanese (ja)
Inventor
Junji Mizutani
淳二 水谷
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Sasakura Engineering Co Ltd
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Sasakura Engineering Co Ltd
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Priority to JP2005270742A priority Critical patent/JP2007078326A/en
Priority to PCT/JP2006/317447 priority patent/WO2007032220A1/en
Publication of JP2007078326A publication Critical patent/JP2007078326A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • F28F3/083—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning capable of being taken apart
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/06—Evaporators with vertical tubes
    • B01D1/08—Evaporators with vertical tubes with short tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D3/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium flows in a continuous film, or trickles freely, over the conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D5/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0061—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for phase-change applications
    • F28D2021/0064—Vaporizers, e.g. evaporators

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide an evaporator for, for example, producing freshwater from seawater or the like or concentrating an aqueous solution or the like capable of simplifying a structure, maintaining a high heat transfer coefficient, and reducing assembling man-hours. <P>SOLUTION: The evaporator includes a plurality of fluid passages 5b provided on a heat transfer unit 5 formed by laminating two heat transfer plates 5a so as to extend approximately in parallel, wherein the fluid passage 5b is formed by recessing and deforming the heat transfer plate. A plurality of the heat transfer units are arranged in lamination in a sealed container 1 so that the respective fluid passages in the respective heat transfer plate units extend in a horizontal direction. Seal bodies 7, 8 and 9 of soft and elastic bodies are inserted with one another at both ends of the respective heat transfer units. Outer surfaces of the respective heat transfer units, and insides of the respective fluid passages in the respective heat transfer units are partitioned by the seal bodies, and fluid to be evaporated is supplied to the outer surface of the respective heat transfer units, and vapor for heating is supplied to the respective fluid passages in the respective heat transfer units. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は，例えば，海水等から淡水を製造するとか，水溶液の濃縮を行う等の場合において使用する蒸発装置に関するものである。   The present invention relates to an evaporator used in the case of producing fresh water from seawater or the like or concentrating an aqueous solution, for example.

従来，この種の蒸発装置は，特許文献１及び２等に記載されているように，密閉容器内に，水平にした伝熱管の多数本を縦及び横方向に適宜ピッチの間隔で並べて配設し，この各伝熱管の外表面に供給した海水等の被蒸発液を，当該各伝熱管内にその一端から供給した加熱用蒸気にて間接・加熱することにより，沸騰・蒸発するものであり，前記各伝熱管を，左右一対の管板に対して，その両端が当該管板を貫通するようにして固着することにより，前記両管板によって，前記各伝熱管における外表面と各伝熱管の内部とを区画するとともに，前記各伝熱管を支持するという構成にしている。
特開昭５４−８０２７８号公報 実公昭５７−５０９６号公報 Conventionally, as described in Patent Documents 1 and 2, etc., this type of evaporator is arranged in a hermetic container with a plurality of horizontal heat transfer tubes arranged at appropriate pitch intervals in the vertical and horizontal directions. However, the liquid to be evaporated such as seawater supplied to the outer surface of each heat transfer tube is boiled / evaporated by heating indirectly with the heating steam supplied from one end of each heat transfer tube. The heat transfer tubes are fixed to a pair of left and right tube plates so that both ends of the heat transfer tubes pass through the tube plates, whereby the outer surfaces of the heat transfer tubes and the heat transfer tubes are formed by the two tube plates. In addition, the heat transfer pipes are supported and partitioned.
Japanese Patent Laid-Open No. 54-80278 Japanese Utility Model Publication No. 57-5096

ところで，前記したように，各伝熱管の両端を，当該各伝熱管における外表面と内部とを区画した状態で支持するという左右の両管板において，その大きさ（当該管板が円形である場合にはその直径寸法，当該管板が矩形である場合にはその一辺の寸法）は，その間に設けられる伝熱管の本数に比例して大きくなる。   By the way, as described above, in both the left and right tube plates that support both ends of each heat transfer tube in a state in which the outer surface and the inside of each heat transfer tube are partitioned, the size (the tube plate is circular). In that case, the diameter dimension thereof, or the dimension of one side in the case where the tube sheet is rectangular, becomes larger in proportion to the number of heat transfer tubes provided therebetween.

一方，前記各伝熱管が水平である場合，この各伝熱管内にその一端から供給された加熱用蒸気は，各伝熱管内を凝縮しながら他端の方向に流れ，凝縮水として他端から一部の加熱用蒸気と一緒に流出することにより，前記各伝熱管内における熱伝達係数は，前記伝熱管における長さが長くなるほど内面における凝縮水の厚みが増大して伝熱計数が大きくなるために，長さに比例して低下するものであることが知られている。   On the other hand, when each of the heat transfer tubes is horizontal, the heating steam supplied from one end of each heat transfer tube flows in the direction of the other end while condensing in each heat transfer tube, and becomes condensed water from the other end. By flowing out together with some of the heating steam, the heat transfer coefficient in each heat transfer tube increases the thickness of the condensed water on the inner surface as the length of the heat transfer tube increases, and the heat transfer coefficient increases. Therefore, it is known that it decreases in proportion to the length.

従って，前記した各特許文献のように，左右一対の管板の間に，水平の横向きに延びる伝熱管の多数本を縦及び横方向に適宜ピッチの間隔で並べて配設するという構成において，前記各伝熱管内における熱伝達係数を高い値に維持することのために，各伝熱管における長さを短くした場合には，所定の伝熱面積を得るには，前記伝熱管における本数が多くなるから，左右の両管板を大きくしなければならないとともに，当該管板における板厚さを厚くしなければならないという問題がある。   Therefore, as in each of the above-mentioned patent documents, in the configuration in which a large number of heat transfer tubes extending horizontally in the horizontal direction are arranged between the pair of left and right tube plates in the vertical and horizontal directions at appropriate pitch intervals. If the length of each heat transfer tube is shortened in order to maintain the heat transfer coefficient in the heat tube at a high value, the number of heat transfer tubes increases in order to obtain a predetermined heat transfer area. There is a problem that both the left and right tube sheets must be enlarged and the thickness of the tube sheet must be increased.

しかも，前記多数本の各伝熱管は，その両端を両管板に対して貫通して固着することにより，当該伝熱管における本数が多くなることは，この伝熱管の組み立てに要する手数が大幅に増大するばかりか，前記各伝熱管を交換する等のメンテナンスが極めて困難であるという問題もあった。   In addition, the large number of the heat transfer tubes increases the number of the heat transfer tubes by fixing the both ends of the heat transfer tubes through both ends of the tube plates. In addition to the increase, there is a problem that maintenance such as replacement of the heat transfer tubes is extremely difficult.

本発明は，これらの問題を解消した蒸発装置を提供することを技術的課題するものである。   An object of the present invention is to provide an evaporation apparatus that solves these problems.

この技術的課題を達成するため本発明の請求項１は，
「熱伝導の良い材料による伝熱板を二枚重ね合わせて一つの伝熱ユニットを構成し，この伝熱ユニットに，その両伝熱板のうち一方又は両方を凹み変形させることで形成して成る流体通路の複数個を，適宜ピッチの間隔で互いに略平行に延びるように設け，前記伝熱ユニットの複数枚を，密閉容器内に，当該各伝熱板ユニットにおける各流体通路が水平の方向に延びるように積層状に並べて配設し，この各伝熱ユニットの両端部における相互間に，軟質弾性体製のシール体を介挿して，このシール体にて，前記各伝熱ユニットにおける外表面と，各伝熱ユニットにおける各流体通路内とを区画するように構成し，前記各伝熱ユニットにおける外表面に被蒸発液を供給する一方，前記各伝熱ユニットにおける各流体通路内に加熱用蒸気を当該流体通路の一端から供給するように構成した。」
ことを特徴としている。 In order to achieve this technical problem, claim 1 of the present invention provides:
“A fluid formed by stacking two heat transfer plates made of a material with good heat conductivity to form one heat transfer unit, and by deforming one or both of the heat transfer plates into this heat transfer unit. A plurality of passages are provided so as to extend substantially parallel to each other at appropriate pitch intervals, and a plurality of the heat transfer units are provided in a sealed container, and each fluid passage in each heat transfer plate unit extends in a horizontal direction. The heat transfer units are arranged side by side in such a manner that a soft elastic seal body is interposed between both ends of each heat transfer unit, and the seal body is connected to the outer surface of each heat transfer unit. , Each fluid passage in each heat transfer unit is configured to be partitioned, and the liquid to be evaporated is supplied to the outer surface of each heat transfer unit, while the heating steam is introduced into each fluid passage in each heat transfer unit. The flow And configured to provide from one end of the passage. "
It is characterized by that.

また，本発明の請求項２は，
「前記請求項１の記載において，前記各伝熱ユニットにおける両端部に，当該各伝熱ユニットをその積層方向に押圧するようにした押圧手段を備えている。」
ことを特徴としている。 Further, claim 2 of the present invention is
“In the first aspect of the present invention, at both ends of each heat transfer unit, there is provided pressing means for pressing each heat transfer unit in the stacking direction.”
It is characterized by that.

更にまた，本発明の請求項３は，
「前記請求項１又は２の記載において，前記各伝熱ユニットのうち一つの伝熱ユニットにおける各流体通路の間に，隣接の伝熱ユニットにおける各流体通路が位置するように構成した。」
ことを特徴としている。 Furthermore, claim 3 of the present invention provides
“In the first or second aspect of the invention, each fluid passage in the adjacent heat transfer unit is positioned between each fluid passage in one of the heat transfer units.”
It is characterized by that.

前記した構成において，前記各伝熱ユニットの外表面に供給された被蒸発液は，前記各伝熱ユニットにおける各流体通路内にその一端から供給した加熱用蒸気にて間接・加熱されて沸騰・蒸発する。   In the above-described configuration, the liquid to be evaporated supplied to the outer surface of each heat transfer unit is heated indirectly by heating steam supplied from one end into each fluid passage in each heat transfer unit. Evaporate.

この場合において，前記伝熱ユニットの複数枚を，密閉容器内に，当該各伝熱板ユニットにおける各流体通路が水平の方向に延びるように積層状に並べて配設し，この各伝熱ユニットの両端部における相互間に，軟質弾性体製のシール体を介挿して，このシール体にて，前記各伝熱ユニットにおける外表面と，各伝熱ユニットにおける各流体通路内とを区画するように構成したことにより，従来のように，二枚の管板を使用することを必要としないのであり，換言すると，従来における厚い板厚の二枚の管板を省略することができる。   In this case, a plurality of the heat transfer units are arranged in a sealed container in a stacked manner so that the fluid passages in the heat transfer plate units extend in the horizontal direction. A soft elastic sealing body is interposed between both ends, and the sealing body separates the outer surface of each heat transfer unit and the fluid passage of each heat transfer unit. Since it is configured, it is not necessary to use two tube sheets as in the prior art. In other words, the conventional two thick tube sheets can be omitted.

しかも，前記伝熱ユニットの複数枚を，その両端管にシール体を挟んで積層することで組み立てることができるから，熱伝達率を高くすることのために，各伝熱ユニットにおける各流体通路の長さを短くすることによって，前記流体通路の本数を多くした場合においても，組み立てに要する手数が増大することがなく，至極簡単且つ迅速に組み立てることができるのであり，しかも，前記伝熱ユニットの両端は固着されていないので，その交換等のようなメンテナンスが至極容易にできる。   In addition, since a plurality of the heat transfer units can be assembled by laminating the sealing bodies between the both end pipes, in order to increase the heat transfer coefficient, By shortening the length, even when the number of fluid passages is increased, the number of steps required for assembly does not increase, and assembly can be performed extremely simply and quickly. Since both ends are not fixed, maintenance such as replacement is extremely easy.

また，請求項２に記載した構成によると，各伝熱ユニットに対してシール体を強く押しつけることができるから，当該シール体によるシール性能を向上できる。   Moreover, according to the structure described in Claim 2, since a sealing body can be strongly pressed with respect to each heat-transfer unit, the sealing performance by the said sealing body can be improved.

更にまた，請求項３に記載した構成によると，複数枚の伝熱ユニットにおける積層方向の間隔寸法を，各流体通路を同じ位置にした場合よりも狭くできるから，蒸発装置を小型化できる。   Furthermore, according to the configuration described in claim 3, since the interval dimension in the stacking direction of the plurality of heat transfer units can be made narrower than when each fluid passage is at the same position, the evaporator can be miniaturized.

以下，本発明の実施の形態を，図１〜図４の図面について説明する。   Hereinafter, embodiments of the present invention will be described with reference to FIGS.

これらの図において，符号１は，密閉容器としての蒸発缶を示し，この蒸発缶１内の上部は，仕切り板２にて，蒸発室３と，気液分離室４とに仕切られている。   In these drawings, reference numeral 1 denotes an evaporator as a sealed container, and the upper part of the evaporator 1 is divided into an evaporation chamber 3 and a gas-liquid separation chamber 4 by a partition plate 2.

前記蒸発室３内には，後述するように構成した板状の伝熱ユニット５の複数枚が縦向きにして水平方向に積層して配設され，前記気液分離室４の内部には，気液分離用のデミスター６が配設されている。   In the evaporation chamber 3, a plurality of plate-like heat transfer units 5 configured as will be described later are disposed vertically and stacked in a horizontal direction. Inside the gas-liquid separation chamber 4, A demister 6 for gas-liquid separation is provided.

この各伝熱ユニット５は，金属等のように熱伝導の良い材料による伝熱板５ａを二枚重ね合わせて，少なくともその周囲を溶接等にて接合して成るものに構成されており，更に，前記各伝熱ユニット５には，その両伝熱板５ａを互いに反対の方向に凹み変形させることで形成して成る流体通路５ｂの複数個が，適宜ピッチＰの間隔で互いに略平行に延びるように設けられている。   Each of the heat transfer units 5 is constructed by superposing two heat transfer plates 5a made of a material having good heat conductivity such as metal and joining at least the periphery thereof by welding or the like. Each heat transfer unit 5 has a plurality of fluid passages 5b formed by denting and deforming both heat transfer plates 5a in opposite directions so as to extend substantially in parallel with each other at an appropriate pitch P. Is provided.

そして，このように構成した伝熱ユニット５の複数枚を，縦向きにし，且つ，その各流体通路５ｂが水平の方向に延びるように積層状に並べて配設する。   Then, a plurality of the heat transfer units 5 configured as described above are arranged vertically and arranged in a stacked manner so that the fluid passages 5b extend in the horizontal direction.

この場合において，この各伝熱ユニット５の両端部には，その相互間，及び，前記蒸発室３の両側を構成する一方の側面板３ａ及び他方の可動式側面板３ｂとの間に，ゴム等のような軟質弾性体製のシール体７，８，９を介挿しており，前記可動式側面板３ｂに対して設けた複数本のボルト１０等の押圧手段により，当該各伝熱ユニット５の両端部を，その積層方向に押圧して，前記各伝熱ユニット５の両端部におけるシール体７，８，９の部分を締め付けるように構成しており，これらのシール体７，８，９によって，前記伝熱ユニット５の複数枚を内蔵する蒸発室３と，前記各伝熱ユニット５の流体通路５ｂにおける一端が開口する入口ヘッダー室１１と，前記各伝熱ユニット５の流体通路５ｂにおける他端が開口する出口ヘッダー室１２とに区画するように構成している。   In this case, both ends of each heat transfer unit 5 are provided with rubber between each other and between one side plate 3a and the other movable side plate 3b constituting both sides of the evaporation chamber 3. Each of the heat transfer units 5 is inserted by pressing means such as a plurality of bolts 10 provided on the movable side plate 3b. Are pressed in the laminating direction to tighten the seal bodies 7, 8, 9 at both ends of each heat transfer unit 5. The seal bodies 7, 8, 9 In the evaporation chamber 3 containing a plurality of the heat transfer units 5, the inlet header chamber 11 having one end opened in the fluid passage 5 b of each heat transfer unit 5, and the fluid passage 5 b of each heat transfer unit 5. Outlet header chamber 1 with the other end open It is configured so as to define the door.

本実施の形態においては，図３に示すように，前記各伝熱ユニットのうち一つの伝熱ユニット５における各流体通路５ｂの間に，隣接の伝熱ユニット５における各流体通路５ｂが位置することにより，前記各伝熱ユニット５における各流体通路５ｂを，いわゆる千鳥配列に構成しており，この千鳥配列に構成することにより，前記複数枚の各伝熱ユニット５における積層方向の間隔寸法Ｓを，各流体通路５ｂを同じ位置に揃えて設ける場合よりも狭くことができる。   In the present embodiment, as shown in FIG. 3, each fluid passage 5b in the adjacent heat transfer unit 5 is located between each fluid passage 5b in one heat transfer unit 5 among the heat transfer units. Thus, the fluid passages 5b in each of the heat transfer units 5 are configured in a so-called staggered arrangement. By configuring in this zigzag arrangement, the spacing dimension S in the stacking direction in each of the plurality of heat transfer units 5 is configured. Can be made narrower than when the fluid passages 5b are arranged at the same position.

前記蒸発缶１の内底に溜まっている被蒸発液を，被蒸発液供給管路１３より送られて新規の被蒸発液と一緒に被蒸発液循環ポンプ１４に汲み出し，これを管路１５を介して，前記蒸発室３内の上部に配設したスプレーノズル１６に供給し，このスプレーノズル１６から，前記各伝熱ユニット５の外表面に対して散布し，各伝熱ユニット５の外表面を伝って前記蒸発缶１の内底に流下するという循環を行うように構成する。   The liquid to be evaporated that has accumulated in the inner bottom of the evaporator 1 is sent from the liquid supply line 13 to be evaporated and pumped to the liquid circulation pump 14 together with the new liquid to be evaporated. To the spray nozzle 16 disposed in the upper part of the evaporation chamber 3 and sprayed from the spray nozzle 16 to the outer surface of each heat transfer unit 5. It is constructed so as to perform a circulation of flowing down to the inner bottom of the evaporator 1 through the above.

一方，前記蒸発室３内において発生した蒸気を，前記気液分離室４の内部のデミスター６を通過したのち，当該蒸気の一部を，間接冷却式の凝縮器１７に導いて凝縮する一方，残りの蒸気を，ボイラー等から蒸気供給管１８を介して送られて来る蒸気にて駆動されるエゼクター１９に吸引して圧縮したのち，加熱用蒸気ダクト２０を介して前記入口ヘッダー室１１内に導入することにより，この入口ヘッダー室１１内から，前記各伝熱ユニット５における各流体通路５ｂ内に供給するように構成している。   On the other hand, after the vapor generated in the evaporation chamber 3 passes through the demister 6 inside the gas-liquid separation chamber 4, a part of the vapor is led to the indirect cooling condenser 17 to be condensed, The remaining steam is sucked and compressed by an ejector 19 driven by steam sent from a boiler or the like via a steam supply pipe 18 and then into the inlet header chamber 11 via a heating steam duct 20. By being introduced, the inlet header chamber 11 is configured to supply the fluid passages 5b in the heat transfer units 5 from the inside.

また，前記蒸発室３，前記気液分離室４及び前記出口ヘッダー室１２の内部は，前記凝縮器１７に接続した真空ポンプ２１等の真空発生装置によって，大気圧より低い減圧に維持されている。   The interiors of the evaporation chamber 3, the gas-liquid separation chamber 4 and the outlet header chamber 12 are maintained at a reduced pressure lower than atmospheric pressure by a vacuum generator such as a vacuum pump 21 connected to the condenser 17. .

前記各伝熱ユニット５における各流体通路５ｂ内に，その一端における入口ヘッダー室１１より供給された加熱用蒸気は，前記各流体通路５ｂ内を他端の出口ヘッダー室１２の方向に流れる途中において，前記各伝熱ユニット５の外表面における被蒸発液を間接加熱して沸騰・蒸発し，前記各流体通路５ｂ内において一部が凝縮し，この凝縮水と一緒に出口ヘッダー室１２に流出して，その凝縮水は，出口ヘッダー室１２の内底に溜まったのち蒸発缶１の外に取り出される。   The heating steam supplied from the inlet header chamber 11 at one end of each fluid passage 5b in each heat transfer unit 5 flows in the direction of the outlet header chamber 12 at the other end in each fluid passage 5b. The liquid to be evaporated on the outer surface of each heat transfer unit 5 is heated indirectly to boil and evaporate, and a part of each fluid passage 5b condenses and flows out into the outlet header chamber 12 together with this condensed water. The condensed water is collected on the inner bottom of the outlet header chamber 12 and then taken out of the evaporator 1.

前記各伝熱ユニット５の外表面において被蒸発液の沸騰・蒸発にて発生した蒸気は，気液分離室４内において気液分離されたのち，その一部が凝縮器１７において凝縮され，その凝縮水が，凝縮器１７より取り出される一方，残りの蒸気は，ボイラー等からの蒸気にて駆動されるエゼクター１９にて圧縮されたのち，前記各伝熱ユニット５における各流体通路５ｂ内に入口ヘッダー室１１を介して供給されて，各伝熱ユニット５の外表面における被蒸発液の間接・加熱に供される。   Vapor generated by boiling / evaporation of the liquid to be evaporated on the outer surface of each heat transfer unit 5 is gas-liquid separated in the gas-liquid separation chamber 4, and a part thereof is condensed in the condenser 17. Condensed water is taken out from the condenser 17, while the remaining steam is compressed by an ejector 19 driven by steam from a boiler or the like, and then introduced into each fluid passage 5 b in each heat transfer unit 5. It is supplied via the header chamber 11 and used for indirect and heating of the liquid to be evaporated on the outer surface of each heat transfer unit 5.

前記した構成において，前記各伝熱ユニット５における外表面を囲う前記蒸発室３と，前記各伝熱ユニット５における各流体通路５ｂの一端が開口（連通）する入口ヘッダー室１１及び各流体通路５ｂの他端が開口（連通）する出口ヘッダー室１２との間は，前記シール体７，８，９にて区画されているとともに，前記各伝熱ユニット５を前記シール体７，８，９にて支持することができるから，従来のように，二枚の管板を使用することを必要とせず，換言すると，従来における厚い板厚の二枚の管板を省略することができる。   In the above-described configuration, the evaporation chamber 3 that surrounds the outer surface of each heat transfer unit 5, the inlet header chamber 11 that opens (communicates) with one end of each fluid passage 5 b in each heat transfer unit 5, and each fluid passage 5 b And the outlet header chamber 12 having the other end opened (communication) is partitioned by the seal bodies 7, 8, 9, and the heat transfer units 5 are connected to the seal bodies 7, 8, 9. Therefore, it is not necessary to use two tube sheets as in the prior art. In other words, the conventional two thick tube sheets can be omitted.

また，前記シール体７，８，９を，ボルト１０等の押圧手段による押圧にて各伝熱ユニット５に対して強く押しつけることができるから，当該シール体７，８，９によるシール性能を向上できる。   Further, since the sealing bodies 7, 8, 9 can be strongly pressed against each heat transfer unit 5 by pressing with a pressing means such as a bolt 10, the sealing performance by the sealing bodies 7, 8, 9 is improved. it can.

なお，前記実施の形態は，前記一つの伝熱ユニット５を構成する二枚の伝熱板５ａの両方を，凹み変形させることによって流体通路５ｂを形成する場合であったが，本発明は，これに限らず，二枚の伝熱板５ａのうちいずれか一方の伝熱板５ａのみを凹み変形させることによって流体通路５ｂを形成するという構成にしても良い。   In the above embodiment, the fluid passage 5b is formed by deforming both of the two heat transfer plates 5a constituting the one heat transfer unit 5 into a concave shape. However, the present invention is not limited thereto, and the fluid passage 5b may be formed by deforming only one of the two heat transfer plates 5a.

また，前記実施の形態は，単効用の蒸発装置に適用した場合であったが，本発明は，これに限らず，多重効用の蒸発装置においても，その各段に対して適用することができることはいうまでもない。   The above embodiment is applied to a single-effect evaporator, but the present invention is not limited to this, and can be applied to each stage of a multi-effect evaporator. Needless to say.

実施の形態による蒸発装置の縦断正面図である。It is a vertical front view of the evaporator by embodiment. 図１のII−II視断面図である。It is the II-II sectional view taken on the line of FIG. 図１の要部拡大図である。It is a principal part enlarged view of FIG. 図３のIV−IV視断面図である。FIG. 4 is a sectional view taken along line IV-IV in FIG. 3.

符号の説明Explanation of symbols

１ 密閉容器としての蒸発缶
３ 蒸発室
４ 気液分離室
５ 伝熱ユニット
５ａ 伝熱板
５ｂ 流体通路
７，８，９ シール体
１０ 押圧手段としてのボルト
１１ 入口ヘッダー室
１２ 出口ヘッダー室
１３ 被蒸発液供給管路
１４ 被蒸発液循環ポンプ
１６ スプレーノズル
１７ 凝縮器
２０ 加熱用蒸気ダクト DESCRIPTION OF SYMBOLS 1 Evaporation can as an airtight container 3 Evaporation chamber 4 Gas-liquid separation chamber 5 Heat transfer unit 5a Heat transfer plate 5b Fluid passage 7, 8, 9 Seal body 10 Bolt as a pressing means 11 Inlet header chamber 12 Outlet header chamber 13 Evaporated Liquid supply line 14 Evaporated liquid circulation pump 16 Spray nozzle 17 Condenser 20 Heating steam duct

Claims (3)

熱伝導の良い材料による伝熱板を二枚重ね合わせて一つの伝熱ユニットを構成し，この伝熱ユニットに，その両伝熱板のうち一方又は両方を凹み変形させることで形成して成る流体通路の複数個を，適宜ピッチの間隔で互いに略平行に延びるように設け，前記伝熱ユニットの複数枚を，密閉容器内に，当該各伝熱板ユニットにおける各流体通路が水平の方向に延びるように積層状に並べて配設し，この各伝熱ユニットの両端部における相互間に，軟質弾性体製のシール体を介挿して，このシール体にて，前記各伝熱ユニットにおける外表面と，各伝熱ユニットにおける各流体通路内とを区画するように構成し，前記各伝熱ユニットにおける外表面に被蒸発液を供給する一方，前記各伝熱ユニットにおける各流体通路内に加熱用蒸気を当該流体通路の一端から供給するように構成したことを特徴とする蒸発装置。   A fluid passage formed by stacking two heat transfer plates made of a material with good heat conduction to form one heat transfer unit, and by deforming one or both of the heat transfer plates into the heat transfer unit. A plurality of the heat transfer units are provided so as to extend substantially parallel to each other at appropriate pitch intervals, and the plurality of the heat transfer units are disposed in the sealed container so that the fluid passages in the heat transfer plate units extend in the horizontal direction. Are arranged in a stacked manner, and a soft elastic sealing body is interposed between both end portions of each of the heat transfer units, and the outer surface of each of the heat transfer units, Each heat transfer unit is configured to divide each fluid passage, and the liquid to be evaporated is supplied to the outer surface of each heat transfer unit, while heating steam is supplied to each fluid passage in each heat transfer unit. The fluid Evaporator, characterized by being configured to supply from one end of the road. 前記請求項１の記載において，前記各伝熱ユニットにおける両端部に，当該各伝熱ユニットをその積層方向に押圧するようにした押圧手段を備えていることを特徴とする蒸発装置。   2. The evaporator according to claim 1, further comprising pressing means configured to press the heat transfer units in the stacking direction at both ends of the heat transfer units. 前記請求項１又は２の記載において，前記各伝熱ユニットのうち一つの伝熱ユニットにおける各流体通路の間に，隣接の伝熱ユニットにおける各流体通路が位置するように構成したことを特徴とする蒸発装置。   In the description of claim 1 or 2, each fluid passage in the adjacent heat transfer unit is positioned between each fluid passage in one of the heat transfer units. Evaporating device.
JP2005270742A 2005-09-16 2005-09-16 Evaporator Pending JP2007078326A (en)

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JP2005270742A JP2007078326A (en) 2005-09-16 2005-09-16 Evaporator
PCT/JP2006/317447 WO2007032220A1 (en) 2005-09-16 2006-09-04 Evaporator

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CN112270068B (en) * 2020-09-28 2023-02-28 天津科技大学 Falling film evaporation dynamic simulation method based on combination of heat transfer mechanism and SVM
CN115235268A (en) * 2022-09-23 2022-10-25 徐州工业锅炉有限公司 Flue gas treatment device of industrial boiler

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KR20170084121A (en) * 2014-11-10 2017-07-19 가즈트랑스포르 에 떼끄니가즈 Device and method for cooling a liquefied gas
KR102399310B1 (en) * 2014-11-10 2022-05-18 가즈트랑스포르 에 떼끄니가즈 Device and method for cooling a liquefied gas

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