JP3374345B2 - Channel cover for multi-tube heat exchanger - Google Patents
Channel cover for multi-tube heat exchangerInfo
- Publication number
- JP3374345B2 JP3374345B2 JP14716098A JP14716098A JP3374345B2 JP 3374345 B2 JP3374345 B2 JP 3374345B2 JP 14716098 A JP14716098 A JP 14716098A JP 14716098 A JP14716098 A JP 14716098A JP 3374345 B2 JP3374345 B2 JP 3374345B2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- metal
- heat exchanger
- channel cover
- shaped
- 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 - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
-
- 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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/08—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag
-
- 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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/08—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag
- F28D7/082—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration
- F28D7/085—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration in the form of parallel conduits coupled by bent portions
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は特定形状の金属製Ｕ
字管を使用した多管式熱交換器用チャンネルカバーに関
する。TECHNICAL FIELD The present invention relates to a metal U having a specific shape.
The present invention relates to a channel cover for a multi-tube heat exchanger using a letter tube .
【０００２】[0002]
【従来技術】温度差の異なる二つの流体を固体壁を介し
て接しせしめ、両流体間で熱の移動を行わせる装置は熱
交換器として知られている。この熱交換器の一種に多管
式熱交換器がある。従来一般の多管式熱交換器は、先頭
部、胴部、及び後頭部の３部分から成り立っており、先
頭部は流体入り口部と流体出口部とに二分されており、
胴部内には多数の金属管（伝熱管、チューブ）がいわゆ
る管板を利用して管束にして配置されており、また後頭
部には金属管内の流体の向きを変えるための空間が存在
している。先頭部の流体入り口部に入った流体はその部
分に存在するそれぞれの金属管内に流れ込み、管内を移
動して後頭部に至り、この後頭部の空間で流れの向きを
変えて他の金属管内に入り込み、その管内を逆方向に移
動して、先頭部の流体出口部に入り、外部に排出され
る。そして、この胴部内の金属管内を移動中に、金属管
外を流れる流体との間で熱交換が行われる。2. Description of the Related Art A device in which two fluids having different temperatures are brought into contact with each other through a solid wall to transfer heat between the two fluids is known as a heat exchanger. One type of this heat exchanger is a multi-tube heat exchanger. A conventional general multitubular heat exchanger is composed of a head portion, a body portion, and a back portion, and the head portion is divided into a fluid inlet portion and a fluid outlet portion.
A large number of metal tubes (heat transfer tubes, tubes) are arranged in a tube bundle in the body using a so-called tube sheet, and a space for changing the direction of the fluid in the metal tube exists in the back of the head. . The fluid that has entered the fluid inlet of the leading part flows into each metal tube existing in that part, moves inside the tube and reaches the occipital region, changes the direction of the flow in the space of this occipital region and enters into other metal tubes, It moves in the opposite direction in the pipe, enters the fluid outlet portion of the leading portion, and is discharged to the outside. Then, heat is exchanged with the fluid flowing outside the metal pipe while moving inside the metal pipe in the body portion.
【０００３】ところで、上記の従来の多管式熱交換器に
おいては、流体は金属管内ではスムースに流れるが、先
頭部や後頭部の空間ではどうしても滞留する傾向があ
り、流体の全てが均一時間熱交換器内に滞留するとは限
らない。食品や医療分野で使用される多管式熱交換器
は、金属管内を流れる処理液体の滞留をきらうため、上
記のような熱交換器は使用できなく、熱交換器の胴部内
に配列させた金属管が連続化した多管式熱交換器が使用
される。In the conventional multi-tube heat exchanger described above, the fluid flows smoothly in the metal tube, but tends to stay in the space at the head and the back of the head, so that all of the fluid exchanges heat for a uniform time. It does not always stay in the container. Since the multi-tube heat exchanger used in the food and medical fields hinders the retention of the processing liquid flowing in the metal tube, the above heat exchanger cannot be used and is arranged in the body of the heat exchanger. A multi-tube heat exchanger in which metal tubes are continuous is used.
【０００４】このような熱交換器の胴部内に配列させた
金属管が連続化した従来の多管式熱交換器は、図６の断
面図に示すよう、胴部３０及びその両端にヒンジ機構な
どで開閉自在に取り付けた鋳物製のチャンネルカバー３
１、３２からなっている。胴部３１内には多数の金属管
３４が管板３３、３３を使用して配設されている。３５
は邪魔板、３６、３７は金属管内を通す流体の出入り
口、３８、３９は金属管外を通す液体の出入り口であ
る。図７はこの多管式熱交換器の左側端部に取り付ける
鋳物製チャンネルカバー３１を図示したものである。図
７の（ａ）図は、図７の（ｂ）図のＡ−Ａ線断面図であ
る。図７の（ｂ）図は、図７の（ａ）図の右側面図であ
る。図７の（ｃ）図は、図７の（ａ）図の左側面図であ
る。ここで、３１は鋳物製チャンネルカバーである。４
０は鋳鉄部、４１は液体流入通路であり、４２、４３は
液体流通通路（チャンネル）であって、それぞれ鋳物内
に空洞を設けることによって形成されている。３６は液
体流入通路４１に取り付けた液体導入口である。４４は
チャンネルカバー３１の開閉時に利用する把手である。
そして、４５、４６、４７、４８、４９は、熱交換器の
胴部内に配置した金属管３４の端部に合致させるように
設けた流体連絡路である。例えば胴部３０内に配置した
金属管内を流れてきた流体は４６から入り、チャンネル
部４２で向きを変え４７から他の金属管内に流出する。
したがって、この鋳物製チャンネルカバー３１、３２
を、胴部３０内に多数の金属管３４を配置した熱交換器
の両端に取り付けることによって、胴部内に配置した金
属管３４を全て連続させることができる。The conventional multi-tube heat exchanger in which the metal tubes arranged in the body of such a heat exchanger are continuous is shown in the sectional view of FIG. Channel cover 3 made of cast metal that can be freely opened and closed with
It consists of 1 and 32. A large number of metal tubes 34 are arranged in the body 31 using tube plates 33, 33. 35
Is a baffle plate, 36 and 37 are inlets and outlets for fluids that pass inside the metal tube, and 38 and 39 are inlets and outlets for liquids that pass outside the metal tube. FIG. 7 shows a cast channel cover 31 attached to the left end of this multitubular heat exchanger. FIG. 7A is a sectional view taken along the line AA of FIG. 7B. FIG. 7B is a right side view of FIG. 7A. FIG. 7C is a left side view of FIG. 7A. Here, 31 is a cast channel cover. Four
Reference numeral 0 is a cast iron portion, 41 is a liquid inflow passage, and 42 and 43 are liquid circulation passages (channels), which are formed by forming cavities in the casting. Reference numeral 36 is a liquid introduction port attached to the liquid inflow passage 41. Reference numeral 44 is a handle used when opening and closing the channel cover 31.
And 45,46,47,48,49 is a fluid communication path provided so that it may match with the edge part of the metal tube 34 arrange | positioned in the body part of a heat exchanger. For example, the fluid flowing in the metal pipe arranged in the body portion 30 enters from 46, changes its direction at the channel portion 42, and flows out to another metal pipe from 47.
Therefore, this cast channel cover 31, 32
Are attached to both ends of a heat exchanger in which a large number of metal tubes 34 are arranged in the body portion 30, all the metal tubes 34 arranged in the body portion can be made continuous.
【０００５】この従来の鋳物製のチャンネルカバーは、
寸法的にも形状的にも精巧なチャンネルを形成させる必
要があり、高度な技術を要し、高価なものになること、
その構造上肉薄の部分と肉厚の部分があり、鋳込むとき
その厚さによって冷却温度が相違するため、所謂「ス」
が出来やすいこと、また熱交換器の胴部の形状や大き
さ、及び胴部内に配置した金属管の太さや配置が変わる
ごとに、鋳型を変える必要があり、コスト高になること
などの問題点がある。This conventional cast channel cover is
It is necessary to form elaborate channels both in terms of dimensions and shapes, which requires high technology and becomes expensive,
There is a thin part and a thick part due to its structure, and the cooling temperature is different depending on the thickness when casting, so-called "su"
It is necessary to change the mold every time the shape and size of the body of the heat exchanger and the thickness and arrangement of the metal tube placed inside the body change, which results in high cost. There is a point.
【０００６】そこで、上記の問題点の解消のために、こ
の鋳物製のチャンネルカバーに代わる流体反転機構とし
て、この鋳物製チャンネルカバーのチャンネル部をＵ字
管で構成することが考えられるが、断面円形のパイプを
単に曲げ加工してＵ字管を形成させた場合には、Ｕ字管
端面における管と管の間隔を管の外径以下にすることは
困難であった。このように管と管との間隔が大きいと、
胴部内の金属管の配置もそれに合わせて間隔を置いて配
置しなければならないから、胴部内に金属管を密に配置
することができなく、したがって小型で効率の良い多管
式熱交換器が得られない問題点があり、充分に実用性の
ある製品は得られていない。Therefore, in order to solve the above-mentioned problems, it is conceivable that the channel portion of the casting channel cover may be formed of a U-shaped tube as a fluid reversing mechanism to replace the casting channel cover. When a circular pipe is simply bent to form a U-shaped pipe, it is difficult to make the distance between the pipes on the end face of the U-shaped pipe equal to or smaller than the outer diameter of the pipe. When the distance between the pipes is large like this,
Since the arrangement of the metal tubes in the body must also be arranged at intervals according to it, it is not possible to arrange the metal tubes densely in the body, and therefore a small and efficient multi-tube heat exchanger is provided. There is a problem that cannot be obtained, and a sufficiently practical product has not been obtained.
【０００７】[0007]
【発明が解決しようとする課題】本発明は特定の方法で
作成した特定の形状をした金属製Ｕ字管、すなわちＵ字
管の端面部における管と管の間隔が極めて小さいＵ字管
を用いた多管式熱交換器用のチャンネルカバーを提供す
ることを目的とする。SUMMARY OF THE INVENTION The present invention is directed in a specific way.
The created metal U-shaped pipe having a specific shape, that is, the U-shaped pipe having a very small gap between the pipes at the end surface of the U-shaped pipe
And to provide a channel cover multitubular heat exchanger which had use of.
【０００８】[0008]
【課題を解決するための手段】すなわち本発明は、管外
径が２０〜２００ｍｍの同一径の二本のパイプをそれぞ
れ任意の角度に曲げ、次いでそれぞれの曲げ部を切断
し、その切断面同士を溶着することによって作成した、
Ｕ字管端面における二つの管の中心間距離が管外径の
１．１〜１．５倍である金属製Ｕ字管を、チャンネルカ
バー板に固着してなる多管式熱交換器のチャンネルカバ
ーである。また本発明は、上記の多管式熱交換器のチャ
ンネルカバーにおいて、金属製Ｕ字管の外側に該Ｕ字管
を覆う蓋を被せ、該Ｕ字管と該蓋の間に断熱材を介在さ
せたことを特徴とする多管式熱交換器 のチャンネルカバ
ーである。 Means for Solving the Problems] The present invention, extravascular
Two pipes with the same diameter of 20-200mm each
Bend at any angle and then cut each bend
It was created by welding the cut surfaces together,
The distance between the centers of the two pipes on the end face of the U-shaped pipe is
Use a metal U-shaped tube that is 1.1 to 1.5 times
Channel cover of multi-tube heat exchanger fixed to bar plate
Is The present invention also relates to the above-mentioned multi-tube heat exchanger
In the channel cover, the U-shaped tube is placed outside the metal U-shaped tube.
Cover with a heat insulating material between the U-tube and the lid.
The channel cover of the multi-tube heat exchanger characterized by
Is
【０００９】[0009]
【発明の実施の形態】図１は本発明で用いる金属製Ｕ字
管の縦断面図である。１は本発明で用いる金属製Ｕ字管
である。２は断面円形の金属管、３はＵ字管端面であ
る。そして、ｒは管の外径である。ＤはＵ字管端面３に
おける管と管との間隔である。ｐはＵ字管端面３におけ
る二つの管の中心間距離、すなわち一方の管の中心と他
方の管の中心との距離である（以下、このｐをピッチと
いうことがある）。1 is a vertical sectional view of a metal U-shaped tube used in the present invention. Reference numeral 1 is a metal U-shaped tube used in the present invention. 2 is a metal tube having a circular cross section, and 3 is an end surface of a U-shaped tube. And r is the outer diameter of the tube. D is the distance between the tubes on the U-shaped tube end face 3. p is the distance between the centers of the two tubes on the U-shaped tube end face 3, that is, the distance between the center of one tube and the center of the other tube (hereinafter, this p may be referred to as the pitch).
【００１０】従来、断面円形のパイプを曲げてＵ字管を
作ることは行われているが、曲げ部の曲率を小さくする
と、パイプの断面が変形したり、パイプが破損してしま
い、普通には、管と管との間隔Ｄを管の外径ｒ以下にす
る、すなわちピッチを管外径の２倍以下にすることは難
しかった。しかして、本発明で用いる金属製Ｕ字管は、
管の外径が２０〜２００ｍｍであって、ピッチを管外径
の１．１〜１．５倍にした新規な金属製Ｕ字管である。
この管外径が２０〜２００ｍｍであって、ピッチが管外
径の１．１〜１．５倍である金属製Ｕ字管は、多管式熱
交換器のチャンネルカバーの液体通路を形成させるため
の部品等として有用である。Conventionally, it has been practiced to bend a pipe having a circular cross section to make a U-shaped pipe, but if the curvature of the bent portion is made small, the cross section of the pipe will be deformed or the pipe will be damaged, so that it is normal. It was difficult to make the distance D between the pipes equal to or smaller than the outer diameter r of the pipes, that is, to set the pitch to be equal to or smaller than twice the outer diameter of the pipes. Then, the metal U-tube used in the present invention is
It is a novel metal U-shaped tube having an outer diameter of 20 to 200 mm and a pitch of 1.1 to 1.5 times the outer diameter of the tube.
The metal U-shaped pipe having an outer diameter of 20 to 200 mm and a pitch of 1.1 to 1.5 times the outer diameter of the pipe forms a liquid passage of the channel cover of the multitubular heat exchanger. It is useful as a component, etc.
【００１１】本発明で用いる金属製Ｕ字管は、次のよう
にして製造する。すなわち、同一径の二本のパイプをそ
れぞれ所定の角度に曲げ、次いでそれぞれの曲げ部を適
宜に切断し、その切断面同士を当接して、この当接部分
を溶着することによって製造できる。そして、このとき
の二本のパイプの曲げ角度と切断個所を適宜に変えるこ
とによって、ピッチを任意に変えることができる。図２
はその一例を示したものである。２本の断面円形の同一
径のパイプ４、５を用意し、そのそれぞれを所定の角度
に曲げ加工する。次いで、この曲げ加工したパイプ４、
５を、所望とするＵ字管のピッチに合わせて、それぞれ
の曲げ部で切断する。そしてその切断面６及び７を当接
して、この当接部分を溶接する。斯くして、図１に示す
如き金属製Ｕ字管が得られる。 [0011] Metal U-shaped tube used in the present invention is manufactured as follows. That is, it can be manufactured by bending two pipes having the same diameter to a predetermined angle, cutting each bent portion appropriately, abutting the cut surfaces, and welding the abutting portions. The pitch can be arbitrarily changed by appropriately changing the bending angle and the cutting point of the two pipes at this time. Figure 2
Shows an example. Two pipes 4 and 5 having the same diameter with a circular cross section are prepared, and each of them is bent at a predetermined angle. Then, this bent pipe 4,
5 is cut at each bent portion in accordance with the desired U-tube pitch. Then, the cut surfaces 6 and 7 are brought into contact with each other, and the contact portion is welded. Thus, a metal U-shaped tube as shown in FIG. 1 is obtained .
【００１２】次に上記本発明の金属製Ｕ字管を用いた多
管式熱交換器用チャンネルカバーについて説明する。図
３は多管式熱交換器の左端部に取り付けるためのチャン
ネルカバーの一例の断面図であり、図４のＡ−Ａ線断面
図である。図４は図３のチャンネルカバーの右側面図で
ある。また、図４は図３のチャンネルカバーの蓋２４を
外したときの左側面図である。図３、図４において、１
１は本発明のチャンネルカバーである。１２はチャンネ
ルカバー板である。このチャンネルカバー板１２は、多
管式熱交換器において、その胴部内に金属管を配置固定
するのに用いるいわゆる管板と同様な構造を持つもので
あり、このチャンネルカバー板には熱交換器の胴部に配
置された金属管に対応する多数の孔が設けられている。
１３、１４、１５は上述した金属製Ｕ字管である。これ
らの金属製Ｕ字管の端面をチャンネルカバー板１２の孔
に合致させ、溶接等によってチャンネルカバー板１２に
固着させる。１８、１９、２０、２１、２２は、それぞ
れの金属製Ｕ字管の流体連絡路であり、熱交換器の胴内
部に配置した金属管の端部に合致するようになってい
る。なお２３は流体を熱交換器の金属管内に導入するパ
イプに繋がる流体入り口である。この例は多管式熱交換
器の左端部に取り付けるためのチャンネルカバーである
が、その右端部に取り付けるチャンネルカバーも同様の
構造にする。このチャンネルカバーはヒンジ機構などの
よって開閉自在に取り付けるのが好ましく、１６、１７
はこのチャンネルカバーの開閉に利用する把手である。Next, a channel cover for a multi-tube heat exchanger using the metal U-shaped tube of the present invention will be described. FIG. 3 is a cross-sectional view of an example of the channel cover to be attached to the left end portion of the multitubular heat exchanger, and is a cross-sectional view taken along the line AA of FIG. FIG. 4 is a right side view of the channel cover of FIG. FIG. 4 is a left side view of the channel cover of FIG. 3 with the lid 24 removed. In FIGS. 3 and 4, 1
1 is a channel cover of the present invention. 12 is a channel cover plate. The channel cover plate 12 has a structure similar to a so-called tube plate used for disposing and fixing a metal tube in the body of a multi-tube heat exchanger, and the channel cover plate has a heat exchanger. There are a number of holes corresponding to the metal tubes located in the body of the.
Reference numerals 13, 14, and 15 are the metal U-shaped tubes described above. The end faces of these metal U-shaped tubes are matched with the holes of the channel cover plate 12 and fixed to the channel cover plate 12 by welding or the like. Reference numerals 18, 19, 20, 21, and 22 are fluid communication paths of the respective metal U-shaped tubes, and are adapted to match the ends of the metal tubes arranged inside the shell of the heat exchanger. Reference numeral 23 is a fluid inlet connected to a pipe for introducing the fluid into the metal pipe of the heat exchanger. In this example, the channel cover is attached to the left end of the shell-and-tube heat exchanger, but the channel cover to be attached to the right end has the same structure. It is preferable to attach this channel cover so that it can be opened and closed by a hinge mechanism or the like.
Is a handle used to open and close this channel cover.
【００１３】例えば胴部内に配置した金属管内を流れて
きた流体は連絡路１９からチャンネルカバー１１に入
り、Ｕ字管１４で向きを変え連絡路２０から他の金属管
内に出ていく。斯くして、このチャンネルカバー１１
を、胴部内に多数の金属管を配置した熱交換器の両端に
取り付け、その一方のチャンネルカバーに流体入り口、
他方のチャンネルカバーに流体出口を設けることによっ
て、胴部内に配置した金属管の全てを連続させ、液体導
入口から液体を連続的に、また熱交換器内で滞留させる
ことなく、流体出口から取り出すことができる。そし
て、本発明では、上記のＵ字管として、ピッチが管外径
の１．１〜１．５倍である金属製Ｕ字管を用いたので、
胴部内に多数本配置する金属管同士の間隔を狭めること
ができ、すなわち胴部内の金属管の配置を密にすること
ができ、したがって小型で効率の良い多管式熱交換器が
得られる。なお、この例では、流体が多管式熱交換器の
一方の端から入り、他方の端からでるようにしたが、こ
の流体入り口と流体出口とを共にどちらか一方の端部に
設けてもよい。また、金属製Ｕ字管の配置の仕方によっ
て金属管内の流路を適宜に変えることができ、また単胴
の中に、複数のパス数を設定する（一連の流路を複数設
定する）こともできる。For example, the fluid flowing in the metal pipe arranged in the body enters the channel cover 11 through the communication passage 19, changes its direction by the U-shaped pipe 14, and exits into another metal pipe through the communication passage 20. Thus, this channel cover 11
Attached to both ends of a heat exchanger in which a large number of metal tubes are arranged in the body, and a fluid inlet to one of the channel covers,
By providing the fluid outlet on the other channel cover, all of the metal pipes arranged in the body are made continuous, and the liquid is continuously taken out from the liquid inlet and taken out from the fluid outlet without being retained in the heat exchanger. be able to. And in this invention, since the metal U-shaped pipe whose pitch is 1.1 to 1.5 times the pipe outer diameter was used as said U-shaped pipe,
It is possible to narrow the interval between the metal tubes arranged in large numbers in the body, that is, to arrange the metal tubes in the body densely, so that a small and efficient multitubular heat exchanger can be obtained. In this example, the fluid enters from one end of the shell-and-tube heat exchanger and exits from the other end, but this fluid inlet and fluid outlet may be provided at either end. Good. In addition, the flow path in the metal tube can be changed appropriately according to the way the metal U-shaped tube is arranged, and a plurality of passes can be set in the single barrel (a series of flow paths can be set). You can also
【００１４】上記の図３〜図５の例において、２４はチ
ャンネルカバー板１２に固着させた各金属製Ｕ字管を外
側から保護するための蓋である。この蓋は有っても無く
てもよい。図５は図３のチャンネルカバーの右側面図で
あり、蓋２４を外した状態を示す。また、熱交換器内の
温度と外気温とに差が有る場合には、この蓋内にグラス
ウールなどの断熱材を充填し或は内張りして保温効果を
高めてもよい。また、上記の例においては、金属製Ｕ字
管を孔の開けたチャンネルカバー板に溶着で取り付け固
着したが、胴部内に配置した金属管に直接Ｕ字管を溶着
などで固着してもよい。In the examples of FIGS. 3 to 5, 24 is a lid for protecting each metal U-shaped tube fixed to the channel cover plate 12 from the outside. This lid may or may not be present. FIG. 5 is a right side view of the channel cover of FIG. 3, showing a state where the lid 24 is removed. If there is a difference between the temperature inside the heat exchanger and the outside air temperature, the lid may be filled with a heat insulating material such as glass wool or lined to enhance the heat retaining effect. Further, in the above example, the metal U-shaped tube is attached and fixed to the channel cover plate with the holes by welding, but the U-shaped tube may be directly attached to the metal tube arranged in the body by welding or the like. .
【００１５】[0015]
【発明の効果】従来の鋳物製の多管式熱交換器用チャン
ネルカバーは金型を用いた鋳造によって形成させている
ため、熱交換器の胴部の形状、大きさ、更には胴部内の
金属管（チューブ）太さ、配列状態によって、金型を代
えなければならない不便があり、また精密な鋳造技術が
要求され高価なものであったが、本発明では、この従来
の鋳物製のチャンネルカバーの流体反転機構と同程度の
曲度をもつＵ字管、すなわちピッチが管外径の１．１〜
１．５倍である新規なＵ字管を製作し、このＵ字管を熱
交換器の管板に相当するチャネルカバー板に固着して構
成できるので、市場で要求する多種多様な多管式熱交換
器に簡単且つ安価に対応できる。また、単胴の中に複数
のパス数を設定することも可能となり、熱交換器の使用
用途及び機能を増強することができる。Since the conventional cast channel cover for a multi-tube heat exchanger is formed by casting using a mold, the shape and size of the body of the heat exchanger, and further the metal in the body. Although it is inconvenient to change the mold depending on the thickness of the tube and the arrangement state, and it is expensive because a precise casting technique is required, but in the present invention, this conventional channel cover made of casting is used. U-shaped tube having a degree of curvature similar to that of the fluid reversing mechanism in FIG.
Since a new U-shaped tube that is 1.5 times larger can be manufactured and this U-shaped tube can be fixed to a channel cover plate that corresponds to the tube plate of a heat exchanger, it can be constructed in a variety of multi-tube types required in the market. It can be applied to heat exchangers easily and inexpensively. Further, it is possible to set a plurality of passes in the single cylinder, and it is possible to enhance the usage and function of the heat exchanger.
【図１】本発明で用いる金属製Ｕ字管の縦断面図FIG. 1 is a vertical sectional view of a metal U-shaped tube used in the present invention.
【図２】本発明で用いる金属製Ｕ字管の製造過程を示す
縦断面図FIG. 2 is a vertical sectional view showing a manufacturing process of a metal U-shaped tube used in the present invention.
【図３】本発明の多管式熱交換器用チャンネルカバーの
断面図FIG. 3 is a sectional view of a channel cover for a shell-and-tube heat exchanger of the present invention.
【図４】図３の右側面図4 is a right side view of FIG.
【図５】図３の左側面図5 is a left side view of FIG.
【図６】従来の多管式熱交換器の断面図FIG. 6 is a cross-sectional view of a conventional multitubular heat exchanger.
【図７】従来の多管式熱交換器用チャンネルカバーの断
面図、及び左右側面図FIG. 7 is a cross-sectional view and left and right side views of a conventional channel cover for a shell-and-tube heat exchanger.
１ Ｕ字管、２ 金属管、３ Ｕ字管端面、１１，３
１，３２ 多管式熱交換器用チャンネルカバー、１２
チャンネルカバー板、１３，１４，１５ 金属製Ｕ字
管、１６，１７把手、２４ 蓋1 U-shaped tube, 2 metal tube, 3 U-shaped tube end surface, 11, 3
1,32 Channel cover for multi-tube heat exchanger, 12
Channel cover plate, 13,14,15 Metal U-tube, 16,17 handle, 24 lid
フロントページの続き (56)参考文献 特開 平２−142988（ＪＰ，Ａ) 特開 平４−281194（ＪＰ，Ａ) 特開 平５−74334（ＪＰ，Ａ) 特開 平７−63052（ＪＰ，Ａ) 実開 昭53−61762（ＪＰ，Ｕ) 実開 平５−17462（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) B21D 53/06 F16L 9/02 F28D 7/16 B23K 101:06 Continuation of front page (56) Reference JP-A-2-142988 (JP, A) JP-A-4-281194 (JP, A) JP-A-5-74334 (JP, A) JP-A-7-63052 (JP , A) Actually developed 53-61762 (JP, U) Actually developed 5-17462 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) B21D 53/06 F16L 9/02 F28D 7/16 B23K 101: 06
Claims (2)
のパイプをそれぞれ任意の角度に曲げ、次いでそれぞれ
の曲げ部を切断し、その切断面同士を溶着することによ
って作成した、Ｕ字管端面における二つの管の中心間距
離が管外径の１．１〜１．５倍である金属製Ｕ字管を、
チャンネルカバー板に固着してなる多管式熱交換器のチ
ャンネルカバー。 1. Two pipes having the same outside diameter of 20 to 200 mm.
Bend each pipe to any angle, then each
By cutting the bent part of the
The distance between the centers of the two pipes on the end face of the U-shaped pipe
A metal U-shaped pipe whose separation is 1.1 to 1.5 times the outer diameter of the pipe,
The tube of a multi-tube heat exchanger fixed to the channel cover plate
Channel cover.
被せ、該Ｕ字管と該蓋の間に断熱材を介在させたことを
特徴とする請求項１記載の多管式熱交換器のチャンネル
カバー。2. A capped covering the U-shaped tube on the outside of the metal U-tube, multi according to claim 1, characterized in that by interposing a heat insulating material between the U-shaped tube and the lid Channel cover for tubular heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14716098A JP3374345B2 (en) | 1998-05-28 | 1998-05-28 | Channel cover for multi-tube heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14716098A JP3374345B2 (en) | 1998-05-28 | 1998-05-28 | Channel cover for multi-tube heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11342439A JPH11342439A (en) | 1999-12-14 |
| JP3374345B2 true JP3374345B2 (en) | 2003-02-04 |
Family
ID=15423955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14716098A Expired - Fee Related JP3374345B2 (en) | 1998-05-28 | 1998-05-28 | Channel cover for multi-tube heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3374345B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929808A (en) * | 2010-05-30 | 2010-12-29 | 大连海新工程技术有限公司 | Box-type multi-tube pass heat exchanger |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5107641B2 (en) * | 2007-09-14 | 2012-12-26 | 株式会社ティラド | Manufacturing method of heat exchanger |
-
1998
- 1998-05-28 JP JP14716098A patent/JP3374345B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929808A (en) * | 2010-05-30 | 2010-12-29 | 大连海新工程技术有限公司 | Box-type multi-tube pass heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11342439A (en) | 1999-12-14 |
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