JPH0518689A - Heat transfer tube support for heat exchanger - Google Patents

Abstract

PURPOSE:To obtain a heat transfer tube support for heat exchanger, high in the reliability of quality and inexpensive in the manufacturing cost thereof. CONSTITUTION:The title support is provided with flat slit plate 1, on which slits having the half size of the width of the flat plate 1 are applied lengthwisely with a given interval continuously and a corrugated plate 2, having slits having about half size of the width of the plate 2 continuously in the lengthwise direction with a given interval and bent in the lengthwise direction of the plate continuously with a given interval. The slits of the flat plate 1 are engaged with the slits of the corrugated plate 2 so as to be orthogonal to each other while an assembled structure is utilized as the support of heat transfer tubes for a heat exchanger.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】本発明は熱交換器等に使用される伝熱管サ
ポートに関するものである。The present invention relates to a heat transfer tube support used in a heat exchanger or the like.

【０００２】[0002]

【従来の技術】多管式熱交換器７の構造の一例を示せば
図５に示すように、円筒状の胴体８内に多数の伝熱管９
が配列され、これ等の伝熱管９の両端は管板１０に固定
され、途中は切り欠きバッフル１１によって支持される
構造になっている。そして胴体８の側面には胴側入口ノ
ズル１２と胴側出口ノズル１３とが設けられ、胴側入口
ノズル１２から流入した流体は図の矢印Ａのように流
れ、胴側出口ノズル１３を介して外部へ流出するように
なっている。また胴体８の両端には一対の管側ヘッド１
４、１５が配設され、管側ヘッド１４には管側入口ノズ
ル１６、管側ヘッド１５には管側出口ノズル１７がそれ
ぞれ設けられている。そして、管側入口ノズル１６から
流入した流体は伝熱管９内を流れた後、管側出口ノズル
１７を介して外部へ流出するようになっている。2. Description of the Related Art As an example of the structure of a multi-tube heat exchanger 7, as shown in FIG. 5, a large number of heat transfer tubes 9 are provided in a cylindrical body 8.
Are arranged, and both ends of these heat transfer tubes 9 are fixed to the tube sheet 10 and are supported by cutout baffles 11 in the middle. A body-side inlet nozzle 12 and a body-side outlet nozzle 13 are provided on the side surface of the body 8, and the fluid flowing from the body-side inlet nozzle 12 flows as shown by an arrow A in the figure and passes through the body-side outlet nozzle 13. It is designed to be leaked to the outside. In addition, a pair of tube-side heads 1 is provided at both ends of the body 8.
4 and 15 are provided, the tube-side head 14 is provided with the tube-side inlet nozzle 16, and the tube-side head 15 is provided with the tube-side outlet nozzle 17. The fluid flowing from the tube-side inlet nozzle 16 flows through the heat transfer tube 9 and then flows out to the outside through the tube-side outlet nozzle 17.

【０００３】上記したような切り欠きバッフル１１を胴
体８内に設けると、流体は切り欠きバッフル１１の前後
で折流となり、伝熱管９に対しては直交して流れる。こ
のため胴側と管側との間の伝熱性能は良好であるが、胴
側圧力損失が大きくなる欠点がある。When the notch baffle 11 as described above is provided in the body 8, the fluid becomes a fold flow before and after the notch baffle 11 and flows orthogonally to the heat transfer tube 9. Therefore, the heat transfer performance between the cylinder side and the tube side is good, but there is a drawback that the cylinder side pressure loss becomes large.

【０００４】また上記切り欠きバッフル１１を胴体８内
に設ける時には切り欠きバッフル１１の胴体８に接する
部分を全体として溶接し、切り欠きバッフル１１に設け
られた伝熱管９を通す貫通孔に伝熱管９を通し、切り欠
きバッフル１１に伝熱管９を動かないように溶接しなく
てはならない。何枚かの（図示した例では４枚の）切り
欠きバッフル１１にそこに設けられた貫通孔を通して伝
熱管９を通すことも困難な作業であり、また、止めるた
めの溶接作業も非常に時間のかかる作業である。（この
多数の伝熱管を胴内にとりつける例を第１例とする）い
ま一つ別のタイブの多管式熱交換器の例において、多数
の伝熱管を密に、伝熱管に撓みが出ないように熱交換器
の胴内にとりつける方法について説明する。この例では
熱交換器の胴は角型であり、多数の伝熱管を戸胴内にと
りつけるための上記第１例における切り欠きバッフルに
相当する固定枠として、図３の（Ａ）及び図３の（Ｂ）
に示したような枠３及び４に多数のそれぞれ平板５群及
び６群を溶接した枠を数組使用する。Further, when the cutout baffle 11 is provided in the body 8, the portion of the cutout baffle 11 in contact with the body 8 is welded as a whole, and the heat transfer tube is inserted into a through hole through which the heat transfer tube 9 provided in the cutout baffle 11 passes. The heat transfer tube 9 must be welded to the notch baffle 11 through the plate 9 so as not to move. It is also difficult to pass the heat transfer tube 9 through the through holes provided in some of the notch baffles 11 (four in the illustrated example), and the welding work for stopping is also very time consuming. This is a laborious task. (The first example is the case where a large number of heat transfer tubes are mounted in the body.) In another example of a multi-tube heat exchanger with tiebes, the heat transfer tubes are densely bent and the heat transfer tubes are bent. A method of mounting the heat exchanger inside the body of the heat exchanger will be described. In this example, the body of the heat exchanger has a square shape, and as a fixed frame corresponding to the cutout baffle in the first example for mounting a large number of heat transfer tubes in the door body, FIGS. (B)
Several sets of frames in which a large number of flat plates 5 and 6 are welded to the frames 3 and 4 as shown in FIG.

【０００５】その組立方法を説明すれば、図３の（Ａ）
に示したような枠３に平板５群が斜めに、一定間隔（伝
熱管の外側の直径）を置いて、溶接されている。このよ
うな構造のサポートを縦止めサポートと呼称する。今一
方図３の（Ｂ）に示したような枠４に平板６群が横に一
定間隔（伝熱管の外側の直径）を置いて、溶接されてい
る。このような構造のサポートを横止めサポートと呼称
する。これ等縦止めサポートと横止めサポートとを対に
用いて図４に示したように伝熱管の固定枠が形成でき
る。この固定枠を４個所に用いれば上記第１の例におけ
る切り欠きバッフルに相当する固定枠のように使用して
多数の伝熱管を胴内にとりつけることができる。（この
多数の伝熱管を胴内につりつける例を第２例とする）第
２例の場合も、多数の平板を枠に溶接しなければならな
いし、さらにこの枠を熱交換器の胴内に溶接してとりつ
けなければならない。Explaining the assembling method thereof, FIG.
A group of flat plates 5 are obliquely welded to the frame 3 as shown in FIG. 1 at regular intervals (diameter outside the heat transfer tube). The support having such a structure is called a vertical stop support. On the other hand, a group of flat plates 6 are welded laterally to the frame 4 as shown in FIG. 3 (B) at regular intervals (diameter outside the heat transfer tube). The support having such a structure is called a lateral stop support. By using the vertical stop support and the horizontal stop support as a pair, a fixed frame of the heat transfer tube can be formed as shown in FIG. If this fixed frame is used at four places, it can be used like a fixed frame corresponding to the cutout baffle in the first example, and a large number of heat transfer tubes can be mounted inside the case. In the case of the second example (an example in which a large number of heat transfer tubes are suspended in the case is referred to as a second example), a large number of flat plates must be welded to the frame, and the frame is further provided in the case of the heat exchanger. Must be welded to and attached to.

【０００６】第１例においても、第２例においても数多
くの箇所を溶接する作業は多管式熱交換器を製作する工
程上のネックであった。また、溶接部は多管式熱交換器
の使用中に振動等によって破壊が起こる可能性もあり、
品質上の問題もあった。In both the first example and the second example, the work of welding many points was a bottleneck in the process of manufacturing the multitubular heat exchanger. In addition, the welded part may be destroyed by vibration during use of the multi-tube heat exchanger,
There was also a quality problem.

【０００７】[0007]

【発明が解決しようとする課題】本発明の課題は上記第
１例及び第２例におけるような従来技術の欠点を解消
し、多管式熱交換器に多数の伝熱管をサポートするにつ
いて、コストを低く、かつ品質上の信頼性の高いサポー
トを提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to solve the drawbacks of the prior art as in the above-mentioned first and second examples, and to support a large number of heat transfer tubes in a shell-and-tube heat exchanger. To provide low and reliable support in terms of quality.

【０００８】[0008]

【課題を解決するための手段】本発明の上記課題は、平
板の幅方向の寸法の約半分の寸法に、かつ長さ方向に一
定の間隔で施された複数のスリットを有するスリット付
平板材と、各屈曲部の中央部に幅方向の寸法の約半分の
寸法で施された複数のスリットを有する長さ方向に一定
の間隔で連続して屈曲加工された波板材とを、各複数枚
それぞれ平行に並べ、前記両者が互いにスリット部分が
交わるように、前記平板材のスリットと前記波板材のス
リットとを嵌合することにより組立られたことを特徴と
する熱交換器用伝熱管サポートによって達成される。DISCLOSURE OF THE INVENTION The above object of the present invention is to provide a flat plate member with slits having a plurality of slits which are approximately half the size of the flat plate in the width direction and are provided at regular intervals in the length direction. And a plurality of corrugated sheet materials that are continuously bent at a constant interval in the length direction having a plurality of slits provided at the center of each bent portion with about half the dimension in the width direction. A heat transfer tube support for a heat exchanger, characterized by being assembled by fitting the slits of the flat plate member and the slits of the corrugated plate member so that the slit portions intersect each other in parallel. To be done.

【０００９】本発明の平板材及び波板材の加工は次のよ
うにして行われる。すなわち、平板材１は図１の（Ａ）
に示したように平板に幅方向の寸法の約半分の寸法のス
リットを複数例えばプレス加工によって作成する。この
スリットの間隔は伝熱管の外側の直径である。波板材２
はやはり図１の（Ｂ）に示したように、平板材にまず幅
方向の寸法の約半分の寸法のスリットを複数例えばプレ
ス加工によって作成する。スリットの間隔は平板材１を
相隣るスリットの中央で折り曲げ波形にした時相隣るス
リットの水平方向の間隔が伝熱管の外側の直径になるよ
うに設計する。従って平板時のスリットの間隔は折り曲
げの角度によって変わる。ただし、熱交換器の胴体に溶
接する部分におけるスリットの位置は平板材の場合も波
板材の場合も胴体の形状等の要因によって変わる。波板
材の折り曲げ方もまた胴体の形状等の要因によって影響
される。かく成形された複数のスリットを有する波板材
２は図１の（Ｂ）に示したように長さと向きとを変えれ
ば平面図の輪郭は端の部分を除いて図１の（Ａ）に示し
た平板材１と相同である。The flat plate material and corrugated plate material of the present invention are processed as follows. That is, the flat plate material 1 is shown in FIG.
As shown in FIG. 5, a plurality of slits each having a size about half the size in the width direction are formed on the flat plate by, for example, press working. The distance between the slits is the outer diameter of the heat transfer tube. Corrugated sheet material 2
First, as shown in FIG. 1B, a plurality of slits each having a size of about half the size in the width direction are first formed in the flat plate material by, for example, press working. The slit spacing is designed such that when the flat plate material 1 is bent and formed in the center of the adjacent slits, the horizontal spacing of the adjacent slits becomes the outer diameter of the heat transfer tube. Therefore, the slit spacing on a flat plate changes depending on the bending angle. However, the position of the slit in the portion of the heat exchanger to be welded to the body changes depending on factors such as the shape of the body in the case of flat plate material and corrugated plate material. The method of bending the corrugated sheet material is also influenced by factors such as the shape of the body. The corrugated sheet material 2 having a plurality of slits formed as described above is shown in (A) of FIG. 1 except the end portion if the contour of the plan view is changed by changing the length and the direction as shown in (B) of FIG. It is the same as the flat plate material 1.

【００１０】本発明の熱交換器用伝熱管のサポートの特
徴はサポートを組立るのに溶接は平板材と波板材とが前
後に外れないように外周でのみ溶接すればよい。また伝
熱管、平板材及び波板材を逐次編み上げる形で施工でき
るので、上記第１例や第２例の場合のように溶接して完
成されたサポートの孔に伝熱管を通すための困難性は回
避できることである。The feature of the support of the heat transfer tube for a heat exchanger of the present invention is that when assembling the support, the welding may be performed only on the outer periphery so that the flat plate material and the corrugated plate material do not come back and forth. Further, since the heat transfer tube, the flat plate material and the corrugated plate material can be sequentially knitted, it is difficult to pass the heat transfer tube through the hole of the support completed by welding as in the case of the first and second examples. It is something that can be avoided.

【００１１】[0011]

【実施例】図２に平板材１と波板材２とをそれぞれのス
リットを嵌合することにより熱交換器用伝熱管のサポー
トとして組立てた状態を示した。平板材や波板材の幅、
波板材の折り曲げ方等いろいろな変形が考えられる。本
実施例はその具体的一例である。この例によって本発明
は限定されるものではない。EXAMPLE FIG. 2 shows a state in which the flat plate member 1 and the corrugated plate member 2 are assembled as the support of the heat transfer tube for the heat exchanger by fitting the respective slits. The width of flat and corrugated sheet materials,
Various deformations such as the method of bending the corrugated sheet material can be considered. The present embodiment is a specific example. The invention is not limited by this example.

【００１２】[0012]

【発明の効果】本発明は以上説明したように、加工はプ
レス及び折り曲げが主たる工程で、溶接箇所が非常に少
なくてよいので、加工工程のコストは非常に低減され
る。As described above, according to the present invention, the processing is mainly performed by pressing and bending, and the number of welding points can be very small, so that the cost of the processing step is greatly reduced.

【００１３】また、組立が伝熱管、平板材及び波板材逐
次編み上げる形で施工できるので組立作業が非常に容易
になると共に、劫ってサポートの強度も格段と強化され
る。Further, since the assembly can be carried out by sequentially knitting the heat transfer tube, the flat plate material and the corrugated plate material, the assembling work becomes very easy and the strength of the support is remarkably strengthened.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の伝熱管サポートに使用する平板材１
（Ａ）と波板材２（Ｂ）を示す平面図であり、（Ｃ）は
波板材２の立面図である。FIG. 1 is a flat plate material 1 used for a heat transfer tube support of the present invention.
It is a top view which shows (A) and corrugated board material 2 (B), and (C) is an elevation view of corrugated board material 2.

【図２】本発明の伝熱管サポートの組立面図である。FIG. 2 is an assembly side view of the heat transfer tube support of the present invention.

【図３】第２例の伝熱管サポートに使用する２種の固定
枠を示す平面図である。FIG. 3 is a plan view showing two types of fixing frames used for the heat transfer tube support of the second example.

【図４】第２例の２種の固定枠を使用して伝熱管をサポ
ートした模式図である。FIG. 4 is a schematic view in which a heat transfer tube is supported by using two types of fixing frames of a second example.

【図５】第１例の方法で伝熱管をサポートした多管式熱
交換器の模式図である。FIG. 5 is a schematic view of a multi-tube heat exchanger that supports heat transfer tubes by the method of the first example.

【符号の説明】[Explanation of symbols]

１ 平板材 ２ 波板材 ３ 枠 ４ 枠 ５ 平板 ６ 平板 ７ 多管式熱交換器 ８ 胴体 ９ 伝熱管 １０ 管板 １１ 切り欠きバッフル １２ 胴側入口ノズル １３ 胴側出口ノズル １４ 管側ヘッド １５ 管側ヘッド １６ 管側入口ノズル １７ 管側出口ノズル 1 flat plate material 2 corrugated plate material 3 frame 4 frame 5 flat plate 6 flat plate 7 multi-tube heat exchanger 8 body 9 heat transfer tube 10 tube plate 11 notch baffle 12 body side inlet nozzle 13 body side outlet nozzle 14 tube side head 15 tube side Head 16 Pipe side inlet nozzle 17 Pipe side outlet nozzle

Claims (1)

【特許請求の範囲】 【請求項１】平板の幅方向の寸法の約半分の寸法に、か
つ長さ方向に一定の間隔で施された複数のスリットを有
するスリット付平板材と、各屈曲部の中央部に幅方向の
寸法の約半分の寸法で施された複数のスリットを有する
長さ方向に一定の間隔で連続して屈曲加工された波板材
とを、各複数枚それぞれ平行に並べ、前記両者が互いに
スリット部分が交わるように、前記平板材のスリットと
前記波板材のスリットとを嵌合することにより組立てら
れたことを特徴とする熱交換器用伝熱管サポート。Claim: What is claimed is: 1. A flat plate member with slits having a plurality of slits which are approximately half the size of the flat plate in the width direction and are provided at regular intervals in the length direction, and each bent portion. A corrugated sheet material that is continuously bent at a constant interval in the length direction having a plurality of slits having a size of about half the size in the width direction in the central part of each is arranged in parallel with each other, A heat transfer tube support for a heat exchanger, characterized in that the two are assembled by fitting the slits of the flat plate material and the slits of the corrugated plate material so that the slit portions intersect each other.