JPH0539268Y2 - - Google Patents
Info
- Publication number
- JPH0539268Y2 JPH0539268Y2 JP6692988U JP6692988U JPH0539268Y2 JP H0539268 Y2 JPH0539268 Y2 JP H0539268Y2 JP 6692988 U JP6692988 U JP 6692988U JP 6692988 U JP6692988 U JP 6692988U JP H0539268 Y2 JPH0539268 Y2 JP H0539268Y2
- Authority
- JP
- Japan
- Prior art keywords
- vertical
- evaporator
- tube
- evaporation
- pipe
- 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.)
- Expired - Lifetime
Links
- 230000008020 evaporation Effects 0.000 claims description 119
- 238000001704 evaporation Methods 0.000 claims description 119
- 238000007599 discharging Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 44
- 230000015572 biosynthetic process Effects 0.000 description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 238000002844 melting Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
この考案は、例えば液化酸素、液化窒素等の低
温液化ガスの蒸発器に使用せられる多管式蒸発器
に関するものである。[Detailed Description of the Invention] Industrial Application Field This invention relates to a multi-tube evaporator used as an evaporator for low-temperature liquefied gases such as liquefied oxygen and liquefied nitrogen.
従来の技術
一般に、この種の多管式蒸発器は、例えば第５
図に示すように、所要数の垂直蒸発管Ａが並列状
に配置され、各垂直蒸発管Ａはアルミニウム押出
型材製で長さ方向に伸びる放射状フイン１１を有
しており、これらのフイン１１付き蒸発管Ａが隣
り合うものどうし相互に継ぎ板１５を介して連結
されていた。BACKGROUND TECHNOLOGY In general, this type of multi-tube evaporator is
As shown in the figure, a required number of vertical evaporation tubes A are arranged in parallel, and each vertical evaporation tube A has radial fins 11 made of extruded aluminum and extending in the length direction. Adjacent evaporation tubes A were connected to each other via joint plates 15.
そして従来は、すべての垂直蒸発管Ａは配列の
順にすなわち同図において左から右の順に、液化
ガスが入口側の垂直蒸発管Ａ１から出口側の垂直
蒸発管Ａ８までをシリーズ（一続き）に流れるよ
うに連結管２を介して連結されており、液化ガス
がこれらの垂直蒸発管Ａ内を順次流れる間に、外
部の自然対流による空気流によつて加温されて蒸
発せしめられるようになされていた。 Conventionally, all the vertical evaporation tubes A were arranged in the order of arrangement, that is, from left to right in the figure, and the liquefied gas was arranged in a series (one continuous) from the vertical evaporation tube A1 on the inlet side to the vertical evaporation tube A8 on the outlet side. They are connected through connecting pipes 2 so that the liquefied gas flows through these vertical evaporation pipes A, and while the liquefied gas sequentially flows through these vertical evaporation pipes A, it is heated and evaporated by the air flow due to external natural convection. was.
考案が解決しようとする課題
しかしながら、上記の従来の多管式蒸発器を運
転すると、液化酸素などの液化ガスは例えば−
180℃前後の超低温であるため、液化ガス導入管
１３が接続された入口側の垂直蒸発管Ａ１の管表
面とフイン１１表面に氷霜が生成され、その部分
の熱交換効率の低下により、入口側の垂直蒸発管
Ａ１から次の垂直蒸発管Ａ２へと氷霜生成現象が
進み、とりわけ従来の多管式蒸発器は、並列状の
垂直蒸発管Ａが配列の順に連結管１２を介して連
結されていたゝめ、蒸発器を連続運転するほどに
氷霜生成現象が、入口側の最初の垂直蒸発管Ａ１
から出口側の垂直蒸発管Ａ８までへと次第に進ん
でしまい、液化酸素等の蒸発効率が非常に劣ると
いう問題があつた。Problems to be Solved by the Invention However, when the above-mentioned conventional multi-tube evaporator is operated, liquefied gas such as liquefied oxygen, for example -
Due to the extremely low temperature of around 180°C, ice and frost are formed on the pipe surface of the vertical evaporation pipe A1 on the inlet side to which the liquefied gas introduction pipe 13 is connected, and on the surface of the fin 11, and the heat exchange efficiency of that part decreases. The ice formation phenomenon progresses from one side vertical evaporator tube A1 to the next vertical evaporator tube A2, and in particular, in a conventional multi-tube evaporator, parallel vertical evaporator tubes A are connected via a connecting tube 12 in the order of arrangement. Therefore, the more the evaporator was operated continuously, the more ice and frost formation occurred in the first vertical evaporator pipe A1 on the inlet side.
There was a problem in that the evaporation efficiency of liquefied oxygen and the like was extremely poor because the evaporation efficiency gradually progressed from the evaporation pipe A8 to the vertical evaporation pipe A8 on the exit side.
そこで、従来は、氷霜生成現象による蒸発効率
の低下を見込んで、過大能力の蒸発器を使用する
か、あるいはまた散水もしくは蒸気吹き付けなど
の融氷霜装置を取り付けていた。しかし、前者の
過大能力を有する蒸発器を使用するのは経済的で
なく、また後者の融氷霜装置は、通常蒸発器の上
もしくは下に水または蒸気の供給管を取り付け、
そのスプレー・ノズルから蒸発器に水または蒸気
を吹き付けて、氷霜を溶かすものであるが、この
ような装置は非常に大掛かりであるため、これを
蒸発器に取り付けた場合、コンパクトでなく、設
備費が高くつくとともに、融氷霜対象部分以外に
も水や蒸気がかゝるため、蒸発器が早期に腐食す
るおそれがあり、また水および蒸気の消費量が多
いため、運転コストが非常に高くつくという問題
があつた。しかも、蒸発器の接地場所によつて
は、水や蒸気の供給が困難な場合もあるという問
題があつた。 Therefore, conventionally, in anticipation of a decrease in evaporation efficiency due to the ice-frost formation phenomenon, an evaporator with excessive capacity was used, or an ice-melting and frosting device such as water sprinkling or steam spraying was installed. However, it is not economical to use the former type of evaporator with excessive capacity, and the latter type of ice-melting and frosting equipment usually has a water or steam supply pipe installed above or below the evaporator.
Water or steam is sprayed onto the evaporator from the spray nozzle to melt the ice and frost, but such equipment is very large-scale, so if it is attached to the evaporator, it will not be compact and will require a large amount of equipment. In addition to being expensive, there is a risk of early corrosion of the evaporator as water and steam are exposed to areas other than those targeted for deicing and frosting, and operating costs are extremely high due to the high consumption of water and steam. The problem was that it was expensive. Moreover, depending on the grounding location of the evaporator, it may be difficult to supply water or steam.
この考案の目的は、上記の従来技術の問題を解
決し、他の熱源の融氷霜装置を使用することな
く、氷霜の生成を充分に抑えることができて、蒸
発効率が非常にすぐれており、従つて長期間連続
運転をすることが可能で、経済性が非常に高い多
管式蒸発器を提供しようとするにある。 The purpose of this invention is to solve the above-mentioned problems of the conventional technology, to sufficiently suppress the formation of ice and frost without using an ice-melting/frost device using other heat sources, and to achieve extremely high evaporation efficiency. Therefore, the object of the present invention is to provide a multi-tube evaporator that can be operated continuously for a long period of time and is highly economical.
課題を解決するための手段
この考案は、上記の目的を達成するために、少
なくとも３本の垂直蒸発管が並列状に配置され、
これらの垂直蒸発管は、液化ガスが入口側の垂直
蒸発管から出口側の垂直蒸発管までをシリーズに
流れるように連結管を介して連結されている多管
式蒸発器において、液化ガス導入管が接続された
入口側の垂直蒸発管と、これより液化ガスが送ら
れる次の垂直蒸発管との間に、１または２本以上
の垂直蒸発管が存在せしめられていることを特徴
としている。Means for Solving the Problems In order to achieve the above object, this invention has at least three vertical evaporation tubes arranged in parallel,
These vertical evaporation tubes are used in multi-tube evaporators that are connected via connecting tubes so that the liquefied gas flows in series from the vertical evaporation tube on the inlet side to the vertical evaporation tube on the outlet side. It is characterized in that one or more vertical evaporation tubes are provided between the vertical evaporation tube on the inlet side connected to the vertical evaporation tube and the next vertical evaporation tube from which the liquefied gas is sent.
またこの考案による多管式蒸発器は、並列状に
配置された少なくとも３本の垂直蒸発管によつて
構成された蒸発管群を少なくとも２つ備えてお
り、各蒸発管群の垂直蒸発管は、液化ガスが入口
側の垂直蒸発管から出口側の垂直蒸発管までをシ
リーズに流れるように連結管を介して連結され、
かつ液化ガス導入管が接続された入口側の垂直蒸
発管と、これより液化ガスが送られる次の垂直蒸
発管との間に、１または２本以上の垂直蒸発管が
存在せしめられているとともに、相互に隣り合う
蒸発管群の入口側の垂直蒸発管同志の間に、１ま
たは２本以上の垂直蒸発管が存在せしめられてい
ることを特徴としている。 Furthermore, the multi-tube evaporator according to this invention is equipped with at least two groups of evaporator tubes each consisting of at least three vertical evaporator tubes arranged in parallel. , are connected via connecting pipes so that the liquefied gas flows in series from the vertical evaporation pipe on the inlet side to the vertical evaporation pipe on the outlet side,
and one or more vertical evaporation pipes are made to exist between the vertical evaporation pipe on the inlet side to which the liquefied gas introduction pipe is connected and the next vertical evaporation pipe from which the liquefied gas is sent. The present invention is characterized in that one or more vertical evaporation tubes are present between the vertical evaporation tubes on the inlet side of the evaporation tube groups that are adjacent to each other.
実施例
つぎに、この考案の実施例を図面に基づいて説
明する。Embodiment Next, an embodiment of this invention will be described based on the drawings.
この明細書において、前後左右は、第２図を基
準とし、前とは第２図下側、後とは同上側をい
い、また左とは同図左側、右とは同右側をいうも
のとする。 In this specification, front, rear, right, and left are based on FIG. 2, and the front refers to the lower side of the figure, the rear refers to the upper side of the figure, the left refers to the left side of the same figure, and the right refers to the right side of the same figure. do.
第１図と第２図は液化ガスの蒸発処理能力の大
きいこの考案の第１実施例の多管式蒸発器を示す
ものである。 FIGS. 1 and 2 show a multi-tube evaporator according to a first embodiment of this invention, which has a large liquefied gas evaporation processing capacity.
同図において、この考案による多管式蒸発器
は、並列状に配置された４本のアルミニウム押出
型材製の垂直蒸発管Ａにより構成された２つの蒸
発管群Ｐ，Ｐよりなる左右に伸びる蒸発管列Ｒ
が、前後に３つ平行状に並べられたものである。
各垂直蒸発管Ａには長さ方向に伸びる８つの放射
状フイン１が設けられている。これらの放射状フ
イン１のうち４つのフイン１に蒸発管Ａ相互の間
隔を狭める熱収縮力によつて曲がり得る水平断面
略Ｕ形の屈曲部が形成され、相互に隣り合う蒸発
管Ａ，Ａが、これらの上下両側において屈曲部を
有するフイン１，１同志の間に真直な継ぎ板５を
介して溶接により連結せられている。 In the same figure, the multi-tube evaporator according to this invention consists of two evaporator tube groups P and P, which are made up of four vertical evaporator tubes A made of extruded aluminum and arranged in parallel, and extend from left to right. Tube row R
are arranged in parallel in front and back.
Each vertical evaporator tube A is provided with eight radial fins 1 extending in the length direction. Four of these radial fins 1 are formed with bent portions having a substantially U-shaped horizontal section that can be bent by the thermal contraction force that narrows the distance between the evaporation tubes A, so that the evaporation tubes A and A that are adjacent to each other are The fins 1, 1 having bent portions on both upper and lower sides are connected by welding via a straight joint plate 5.
そして、各蒸発管列Ｒにおいて、各蒸発管群Ｐ
の入口側の垂直蒸発管Ａ１の下端部に液化ガス導
入管３が接続され、かつ出口側の垂直蒸発管Ａ４
の下端部に液化ガス排出管４が接続されるととも
に、入口側の垂直蒸発管Ａ１の上端部が、１本の
垂直蒸発管Ａ３を隔てた垂直蒸発管Ａ２の上端部
に相対的に長い連結管２を介して連結され、この
垂直蒸発管Ａ２の下端部が相対的に短い連結管２
を介して隣りの垂直蒸発管Ａ３下端部に連結さ
れ、さらにこの３番目の垂直蒸発管Ａ３の上端部
が１本の垂直蒸発管Ａ１を隔てた出口側の垂直蒸
発管Ａ４の上端部に長い連結管２を介して連結さ
れることにより、液化ガスが入口側の垂直蒸発管
Ａ１から出口側の垂直蒸発管Ａ４までをシリーズ
に流れるようになされるとともに、入口側の垂直
蒸発管Ａ１と、これより液化ガスが送られる次の
垂直蒸発管Ａ２との間に、１本の垂直蒸発管Ａ３
が存在せしめられ、また相互に隣り合う蒸発管群
Ｐ，Ｐの入口側の垂直蒸発管Ａ１，Ａ１同志の間
には、２本の垂直蒸発管Ａ４，Ａ４が存在せしめ
られ、結局、各蒸発管群Ｐの入口側の垂直蒸発管
Ａ１が３番目と４番目の垂直蒸発管Ａ３，Ａ４
に、いわばサンドイツチ状に挾まれているもので
ある。 In each evaporator tube row R, each evaporator tube group P
The liquefied gas introduction pipe 3 is connected to the lower end of the vertical evaporation pipe A1 on the inlet side, and the vertical evaporation pipe A4 on the exit side
A liquefied gas discharge pipe 4 is connected to the lower end, and the upper end of the vertical evaporation pipe A1 on the inlet side is connected to the upper end of the vertical evaporation pipe A2 separated by one vertical evaporation pipe A3. The lower end of this vertical evaporation pipe A2 is connected via a pipe 2, and the lower end of the vertical evaporation pipe A2 is a relatively short connecting pipe 2.
The third vertical evaporation pipe A3 is connected to the lower end of the adjacent vertical evaporation pipe A3 via the vertical evaporation pipe A1, and the upper end of this third vertical evaporation pipe A3 is connected to the upper end of the vertical evaporation pipe A4 on the outlet side across one vertical evaporation pipe A1. By connecting via the connecting pipe 2, the liquefied gas is made to flow in series from the vertical evaporation pipe A1 on the inlet side to the vertical evaporation pipe A4 on the outlet side, and the vertical evaporation pipe A1 on the inlet side; There is one vertical evaporation tube A3 between this and the next vertical evaporation tube A2 to which liquefied gas is sent.
Moreover, two vertical evaporator tubes A4, A4 are made to exist between the vertical evaporator tubes A1, A1 on the inlet side of the evaporator tube groups P, P, which are adjacent to each other. Vertical evaporator tube A1 on the inlet side of tube group P is the third and fourth vertical evaporator tube A3, A4
They are sandwiched together like a sandwich.
各蒸発管列Ｒにおける２本の液化ガス導入管３
の他端部は、液化ガス導入ヘツダ６にそれぞれ接
続され、このヘツダ６には外部より液化ガスを供
給するための１本の液化ガス供給管７が接続され
ている。一方、各蒸発管列Ｒにおける２本の液化
ガス排出管４の他端部は、液化ガス排出ヘツダ８
にそれぞれ接続され、このヘツダ８には外部に液
化ガスを排出するための１本の液化ガス流送管９
が接続されている。 Two liquefied gas introduction tubes 3 in each evaporator tube row R
The other ends are each connected to a liquefied gas introduction header 6, and a liquefied gas supply pipe 7 for supplying liquefied gas from the outside is connected to this header 6. On the other hand, the other ends of the two liquefied gas exhaust pipes 4 in each evaporator tube row R are connected to liquefied gas exhaust headers 8.
This header 8 has one liquefied gas flow pipe 9 for discharging the liquefied gas to the outside.
is connected.
上記多管式蒸発器において、通常−180℃前後
の低温の液化酸素などの液化ガスを液化ガス供給
管７から導入ヘツダ６および導入管３を経て、各
蒸発管列Ｒの入口側の垂直蒸発管Ａ１に導入する
と、液化ガスは、入口側の垂直蒸発管Ａ１から次
の垂直蒸発管Ａ２、さらに３番目の垂直蒸発管Ａ
３より出口側の垂直蒸発管Ａ４までを順に流れて
いき、液化ガスはこれらの垂直蒸発管Ａ内を流れ
る間に、外部の自然対流による空気流によつて加
温されて蒸発せしめられる。 In the above-mentioned multi-tube evaporator, liquefied gas such as liquefied oxygen at a low temperature of usually around -180°C is introduced from the liquefied gas supply pipe 7, passes through the header 6 and the introduction pipe 3, and is vertically evaporated on the inlet side of each evaporator tube row R. When introduced into the pipe A1, the liquefied gas flows from the vertical evaporator pipe A1 on the inlet side to the next vertical evaporator pipe A2, and then to the third vertical evaporator pipe A.
The liquefied gas sequentially flows from 3 to the vertical evaporation pipe A4 on the outlet side, and while flowing in these vertical evaporation pipes A, it is heated and evaporated by the air flow due to external natural convection.
ここで、液化ガスが例えば酸素、窒素、アルゴ
ンである場合、蒸発器内の液化ガスの蒸発部は、
通常全体の1/3〜1/4であり、残りは加温部となさ
れている。蒸発部に相当する垂直蒸発管Ａ１とこ
れのフイン１の表面温度は、−120〜−160℃程度
である。 Here, if the liquefied gas is, for example, oxygen, nitrogen, or argon, the evaporation section of the liquefied gas in the evaporator is
Usually, it is 1/3 to 1/4 of the total, and the rest is used as a heating section. The surface temperature of the vertical evaporation tube A1 corresponding to the evaporation section and its fins 1 is about -120 to -160°C.
従つて蒸発器の運転により、蒸発部となされた
入口側の垂直蒸発管Ａ１の管表面とフイン１表面
に氷霜が生成されるが、３番目と４番目の垂直蒸
発管Ａ３，Ａ４は加温部となされていて、そのフ
イン１の表面温度は−10〜−20℃程度であり、入
口側の垂直蒸発管Ａ１はこれら３番目と４番目の
垂直蒸発管Ａ３，Ａ４にサンドイツチ状に挾まれ
ているため、入口側の垂直蒸発管Ａ１の表面で生
じた氷霜生成現象が、次の垂直蒸発管Ａ２へと進
むようなことがなく、氷霜の生成を充分に抑える
ことができ、上記のように液化ガスの蒸発処理能
力の大きい多管式蒸発器についても、蒸発効率が
非常にすぐれていて、蒸発器は長期間連続運転を
することが可能である。 Therefore, when the evaporator is operated, ice and frost are generated on the surface of the vertical evaporator tube A1 on the inlet side, which is the evaporator section, and on the surface of the fin 1, but the third and fourth vertical evaporator tubes A3 and A4 are not heated. The surface temperature of the fin 1 is about -10 to -20℃, and the vertical evaporation tube A1 on the inlet side is sandwiched between the third and fourth vertical evaporation tubes A3 and A4 in a sandwich-like manner. Therefore, the ice and frost formation phenomenon that occurs on the surface of the vertical evaporation tube A1 on the inlet side does not proceed to the next vertical evaporation tube A2, and the formation of ice and frost can be sufficiently suppressed. As mentioned above, the multi-tubular evaporator which has a large liquefied gas evaporation processing capacity also has very high evaporation efficiency, and the evaporator can be operated continuously for a long period of time.
第３図と第４図は、この考案の第２実施例を示
すものである。ここで、上記第１実施例の場合と
異なる点は、並列状に配置された３本のアルミニ
ウム押出型材製の垂直蒸発管Ａにより構成された
左右に伸びる蒸発管列Ｒが、前後に３つ平行状に
並べられ、各蒸発管列Ｒにおいて、液化ガス導入
管３が接続された入口側の垂直蒸発管Ａ１の上端
部が、１本の垂直蒸発管Ａ３を隔てた垂直蒸発管
Ａ２の上端部に相対的に長い連結管２を介して連
結され、この次の垂直蒸発管Ａ２の下端部が、相
対的に短い連結管２を介して隣りの垂直蒸発管Ａ
３の下端部に連結されることにより、液化ガスが
入口側の垂直蒸発管Ａ１から出口側の垂直蒸発管
Ａ３までをシリーズに流れるようになされるとと
もに、入口側の垂直蒸発管Ａ１と、これより次の
垂直蒸発管Ａ２との間に、これらとは別の３番目
の垂直蒸発管Ａ３が存在せしめられている点にあ
る。 3 and 4 show a second embodiment of this invention. Here, the difference from the case of the first embodiment is that the evaporator tube row R extending from side to side is composed of three vertical evaporator tubes A made of extruded aluminum and arranged in parallel; In each evaporator tube row R arranged in parallel, the upper end of the vertical evaporator tube A1 on the inlet side to which the liquefied gas introduction tube 3 is connected is the upper end of the vertical evaporator tube A2 separated by one vertical evaporator tube A3. The lower end of the next vertical evaporation pipe A2 is connected to the adjacent vertical evaporation pipe A2 through a relatively short connection pipe 2.
3, the liquefied gas is made to flow in series from the vertical evaporation pipe A1 on the inlet side to the vertical evaporation pipe A3 on the outlet side, and the vertical evaporation pipe A1 on the inlet side and this A third vertical evaporation tube A3, which is different from these, is provided between the next vertical evaporation tube A2.
この第２実施例によれば、各蒸発管列Ｒにおい
て、入口側の垂直蒸発管Ａ１と、次の垂直蒸発管
Ａ２との間に、これらより温度の高い加温部とし
ての３番目の垂直蒸発管Ａ３が存在せしめられて
いるので、蒸発器の運転により入口側の垂直蒸発
管Ａ１の管表面とフイン１表面に氷霜が生成され
ても、この氷霜生成現象が、入口側の垂直蒸発管
Ａ１から次の垂直蒸発管Ａ２へと進むようなこと
がなく、氷霜の生成を充分に抑えることができ、
従つて蒸発効率が非常にすぐれており、蒸発器
は、上記第１実施例の場合と同様に長期間連続運
転をすることが可能である。 According to this second embodiment, in each evaporator tube row R, a third vertical evaporator tube serving as a heating section having a higher temperature than these vertical evaporator tubes is located between the vertical evaporator tube A1 on the inlet side and the next vertical evaporator tube A2. Since the evaporator tube A3 is made to exist, even if ice frost is generated on the tube surface of the vertical evaporator tube A1 on the inlet side and the surface of the fin 1 due to the operation of the evaporator, this ice frost formation phenomenon will not occur on the vertical evaporator tube A1 on the inlet side. There is no possibility that the evaporator tube A1 will proceed to the next vertical evaporator tube A2, and the formation of ice and frost can be sufficiently suppressed.
Therefore, the evaporation efficiency is very high, and the evaporator can be operated continuously for a long period of time as in the first embodiment.
この第２実施例のその他の点は、上記第１実施
例の場合と同様であるので、図面において同一の
ものには同一の符号を付した。 The other points of this second embodiment are the same as those of the first embodiment, so the same parts are given the same reference numerals in the drawings.
なお、上記第１実施例において、蒸発器は、左
右に伸びる蒸発管列Ｒが、２つの蒸発管群Ｐによ
り構成されているが、蒸発管列Ｒは、３つ以上の
蒸発管群Ｐにより構成されていてもよい。また各
蒸発管群Ｐは、４本の垂直蒸発管Ａにより構成さ
れているが、これは少なくとも３本の垂直蒸発管
Ａにより構成されておればよい。 In the first embodiment, the evaporator is configured such that the evaporator tube row R extending left and right is composed of two evaporator tube groups P, but the evaporator tube row R is composed of three or more evaporator tube groups P. may be configured. Each evaporator tube group P is composed of four vertical evaporator tubes A, but it is sufficient that it is composed of at least three vertical evaporator tubes A.
また、上記第２実施例において、蒸発器は、左
右に伸びる蒸発管列Ｒが、３本の垂直蒸発管Ａに
より構成されているが、これは４本以上の垂直蒸
発管Ａにより構成されていてもよい。 Furthermore, in the second embodiment, in the evaporator, the evaporator tube row R extending left and right is composed of three vertical evaporation tubes A, but this is not composed of four or more vertical evaporation tubes A. You can.
また、上記第１および第２実施例において、蒸
発器は、左右に伸びる蒸発管列Ｒが、前後に３つ
平行状に並べられたものであるが、これに限ら
ず、この考案による多管式蒸発器は、少なくとも
１つの蒸発管列Ｒによつて構成されておればよ
い。 Further, in the first and second embodiments, the evaporator has three evaporator tube rows R extending left and right arranged in parallel in the front and back, but the invention is not limited to this. The type evaporator only needs to be constituted by at least one evaporator tube row R.
さらに、この考案による多管式蒸発器において
は、上記第１および第２実施例の場合に限らず、
液化ガス導入管３が接続された入口側の垂直蒸発
管Ａ１と、これより液化ガスが送られる次の垂直
蒸発管Ａ２との間には、１または２本以上の垂直
蒸発管Ａが存在せしめられ、かつ相互に隣り合う
蒸発管群Ｐ，Ｐの入口側の垂直蒸発管Ａ１，Ａ１
同志の間には、１または２本以上の垂直蒸発管Ａ
が存在せしめられておればよいものである。 Furthermore, the multi-tube evaporator according to this invention is not limited to the first and second embodiments described above.
One or more vertical evaporation pipes A are present between the vertical evaporation pipe A1 on the inlet side to which the liquefied gas introduction pipe 3 is connected and the next vertical evaporation pipe A2 from which the liquefied gas is sent. Vertical evaporator tubes A1, A1 on the inlet side of the evaporator tube groups P, P that are adjacent to each other
Between one or more vertical evaporation tubes A
It would be good if it were made to exist.
考案の効果
この考案は、上述のように、少なくとも３本の
垂直蒸発管Ａが並列状に配置され、これらの垂直
蒸発管Ａは、液化ガスが入口側の垂直蒸発管Ａ１
から出口側の垂直蒸発管Ａまでをシリーズに流れ
るように連結管２を介して連結されている多管式
蒸発器において、液化ガス導入管３が接続された
入口側の垂直蒸発管Ａ１と、これより液化ガスが
送られる次の垂直蒸発管Ａ２との間に、これらよ
り温度の高い加温部としての１または２本以上の
垂直蒸発管Ａ３が存在せしめられているので、蒸
発器の運転により入口側の蒸発部としての垂直蒸
発管Ａ１の管表面とフイン１表面に氷霜が生成さ
れても、この氷霜生成現象が、入口側の垂直蒸発
管Ａ１から次の垂直蒸発管Ａ２へと進むようなこ
とがなく、従つて従来のような他の熱源の融氷霜
装置を使用することなく、氷霜の生成を充分に抑
えることができて、液化酸素等の蒸発効率が非常
にすぐれており、長期間連続運転をすることが可
能で、経済性が非常に高いという効果を奏する。Effects of the invention In this invention, as mentioned above, at least three vertical evaporation tubes A are arranged in parallel, and these vertical evaporation tubes A are connected to the vertical evaporation tube A1 on the inlet side of the liquefied gas.
In a multi-tube evaporator connected via a connecting pipe 2 so as to flow in series from to a vertical evaporation pipe A on the exit side, a vertical evaporation pipe A1 on the inlet side to which the liquefied gas introduction pipe 3 is connected; Since one or more vertical evaporation pipes A3 as a heating section with a higher temperature than these exist between the next vertical evaporation pipe A2 to which liquefied gas is sent, the operation of the evaporator is Even if frost is generated on the tube surface of the vertical evaporation tube A1 and the surface of the fin 1 as the evaporation part on the inlet side, this ice frost formation phenomenon is transferred from the vertical evaporation tube A1 on the inlet side to the next vertical evaporation tube A2. Therefore, the formation of ice and frost can be sufficiently suppressed without using a conventional ice melting and frosting device that uses other heat sources, and the evaporation efficiency of liquefied oxygen etc. is extremely high. It has the advantage of being able to operate continuously for a long period of time and being extremely economical.
またこの考案による多管式蒸発器は、上述のよ
うに、並列状に配置された少なくとも３本の垂直
蒸発管Ａによつて構成された蒸発管群Ｐを少なく
とも２つ備えており、各蒸発管群Ｐの垂直蒸発管
Ａは、液化ガスが入口側の垂直蒸発管Ａ１から出
口側の垂直蒸発管Ａまでをシリーズに流れるよう
に連結管２を介して連結され、かつ液化ガス導入
管３が接続された入口側の垂直蒸発管Ａ１と、こ
れより液化ガスが送られる次の垂直蒸発管Ａ２と
の間に、１または２本以上の垂直蒸発管Ａが存在
せしめられているとともに、相互に隣り合う蒸発
管群Ｐ，Ｐの入口側の垂直蒸発管Ａ１，Ａ１同志
の間に、１または２本以上の垂直蒸発管Ａ３が存
在せしめられていて、各蒸発管群Ｐの入口側の垂
直蒸発管Ａ１がこれより温度の高い加温部として
の垂直蒸発管Ａ，Ａに、いわばサンドイツチ状に
挾まれているから、各蒸発管群Ｐにおいて、入口
側の垂直蒸発管Ａ１の表面で生じた氷霜生成現象
が、この垂直蒸発管Ａ１から次の垂直蒸発管Ａ２
へと進むようなことがなく、従つてこのような液
化ガスの蒸発処理能力の大きい多管式蒸発器につ
いても、同様に従来のような他の熱源の融氷霜装
置を使用することなく、氷霜の生成を充分に抑え
ることができて、液化酸素等の蒸発効率が非常に
すぐれており、従つて長期間連続運転をすること
が可能で、経済性が非常に高いという効果を奏す
る。 Furthermore, as described above, the multi-tube evaporator according to this invention is equipped with at least two evaporator tube groups P each composed of at least three vertical evaporator tubes A arranged in parallel. The vertical evaporation pipes A of the tube group P are connected via a connecting pipe 2 so that the liquefied gas flows in series from the vertical evaporation pipe A1 on the inlet side to the vertical evaporation pipe A on the exit side, and the liquefied gas introduction pipe 3 One or more vertical evaporation pipes A are present between the vertical evaporation pipe A1 on the inlet side connected to the vertical evaporation pipe A1 and the next vertical evaporation pipe A2 to which liquefied gas is sent, and the vertical evaporation pipes A are mutually connected. One or more vertical evaporator tubes A3 are made to exist between the vertical evaporator tubes A1, A1 on the inlet side of the evaporator tube groups P, which are adjacent to each other. Since the vertical evaporator tube A1 is sandwiched between the vertical evaporator tubes A and A, which serve as heating parts having a higher temperature, in a so-called sandwich-like manner, in each evaporator tube group P, the surface of the vertical evaporator tube A1 on the inlet side The resulting ice and frost formation phenomenon is transferred from this vertical evaporation tube A1 to the next vertical evaporation tube A2.
Therefore, the multi-tubular evaporator, which has a large liquefied gas evaporation processing capacity, can also be used without using a conventional ice-melting and frosting device using another heat source. It is possible to sufficiently suppress the formation of ice and frost, and the evaporation efficiency of liquefied oxygen and the like is very good. Therefore, it is possible to operate continuously for a long period of time, and it has the effect of being very economical.
第１図は、この考案の第１実施例を示す多管式
蒸発器の概略側面図、第２図は同水平断面図、第
３図はこの考案の第２実施例の多管式蒸発器の概
略側面図、第４図は同水平断面図、第５図は従来
の多管式蒸発器の概略側面図である。
Ａ，Ａ１〜Ａ４……垂直蒸発管、Ｐ……蒸発管
群、Ｒ……蒸発管列、２……連結管、３……液化
ガス導入管、４……液化ガス排出管。
Fig. 1 is a schematic side view of a multi-tube evaporator according to a first embodiment of this invention, Fig. 2 is a horizontal sectional view of the same, and Fig. 3 is a multi-tube evaporator according to a second embodiment of this invention. FIG. 4 is a horizontal sectional view of the same, and FIG. 5 is a schematic side view of a conventional multi-tube evaporator. A, A1 to A4... Vertical evaporation tube, P... Evaporation tube group, R... Evaporation tube row, 2... Connecting pipe, 3... Liquefied gas introduction pipe, 4... Liquefied gas discharge pipe.
Claims (1)
置され、これらの垂直蒸発管Ａは、液化ガスが
入口側の垂直蒸発管Ａ１から出口側の垂直蒸発
管Ａまでをシリーズに流れるように連結管２を
介して連結されている多管式蒸発器において、
液化ガス導入管３が接続された入口側の垂直蒸
発管Ａ１と、これより液化ガスが送られる次の
垂直蒸発管Ａ２との間に、１または２本以上の
垂直蒸発管Ａが存在せしめられている、多管式
蒸発器。 (2) 並列状に配置された少なくとも３本の垂直蒸
発管Ａによつて構成された蒸発管群Ｐを少なく
とも２つ備えており、各蒸発管群Ｐの垂直蒸発
管Ａは、液化ガスが入口側の垂直蒸発管Ａ１か
ら出口側の垂直蒸発管Ａまでをシリーズに流れ
るように連結管２を介して連結され、かつ液化
ガス導入管３が接続された入口側の垂直蒸発管
Ａ１と、これより液化ガスが送られる次の垂直
蒸発管Ａ２との間に、１または２本以上の垂直
蒸発管Ａが存在せしめられているとともに、相
互に隣り合う蒸発管群Ｐ，Ｐの入口側の垂直蒸
発管Ａ１，Ａ１同志の間に、１または２本以上
の垂直蒸発管Ａが存在せしめられている、多管
式蒸発器。[Claims for Utility Model Registration] (1) At least three vertical evaporation tubes A are arranged in parallel, and the liquefied gas flows from the vertical evaporation tube A1 on the inlet side to the vertical evaporation tube A1 on the outlet side. In a multi-tube evaporator connected via a connecting pipe 2 so as to flow in series up to pipe A,
One or more vertical evaporation pipes A are provided between the vertical evaporation pipe A1 on the inlet side to which the liquefied gas introduction pipe 3 is connected and the next vertical evaporation pipe A2 from which the liquefied gas is sent. Multi-tube evaporator. (2) It is equipped with at least two evaporator tube groups P each composed of at least three vertical evaporator tubes A arranged in parallel, and the vertical evaporator tubes A of each evaporator tube group P are capable of discharging liquefied gas. A vertical evaporation pipe A1 on the inlet side that is connected via a connecting pipe 2 so as to flow in series from the vertical evaporation pipe A1 on the inlet side to the vertical evaporation pipe A1 on the outlet side, and to which the liquefied gas introduction pipe 3 is connected; One or more vertical evaporation tubes A are made to exist between this and the next vertical evaporation tube A2 to which liquefied gas is sent, and one or more vertical evaporation tubes A are provided on the inlet side of the mutually adjacent evaporation tube groups P and P. A multi-tube evaporator in which one or more vertical evaporation tubes A are provided between vertical evaporation tubes A1 and A1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6692988U JPH0539268Y2 (en) | 1988-05-20 | 1988-05-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6692988U JPH0539268Y2 (en) | 1988-05-20 | 1988-05-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01169700U JPH01169700U (en) | 1989-11-30 |
| JPH0539268Y2 true JPH0539268Y2 (en) | 1993-10-05 |
Family
ID=31292318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6692988U Expired - Lifetime JPH0539268Y2 (en) | 1988-05-20 | 1988-05-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0539268Y2 (en) |
-
1988
- 1988-05-20 JP JP6692988U patent/JPH0539268Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01169700U (en) | 1989-11-30 |
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