JPH05296403A - Heat transfer pipe panel - Google Patents
Heat transfer pipe panelInfo
- Publication number
- JPH05296403A JPH05296403A JP10080592A JP10080592A JPH05296403A JP H05296403 A JPH05296403 A JP H05296403A JP 10080592 A JP10080592 A JP 10080592A JP 10080592 A JP10080592 A JP 10080592A JP H05296403 A JPH05296403 A JP H05296403A
- Authority
- JP
- Japan
- Prior art keywords
- heat transfer
- transfer tube
- panel
- heat
- panel side
- 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.)
- Granted
Links
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は排熱回収ボイラに係り、
特に複数列の伝熱管から構成されるパネルが外力によっ
て変形するとき、その荷重を支えて変形を最小に保つの
に好適な伝熱パネルに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exhaust heat recovery boiler,
In particular, the present invention relates to a heat transfer panel suitable for supporting the load and keeping the deformation to a minimum when a panel constituted by a plurality of rows of heat transfer tubes is deformed by external force.
【０００２】[0002]
【従来の技術】一般に、コンバインドサイクル発電プラ
ントにおいては、ガスタービン等の排ガスを熱源とし
て、蒸気タービン用の駆動蒸気を発生させる排熱回収ボ
イラが用いられる。2. Description of the Related Art Generally, in a combined cycle power generation plant, an exhaust heat recovery boiler for generating drive steam for a steam turbine using an exhaust gas from a gas turbine or the like as a heat source is used.
【０００３】図９は従来の排熱回収ボイラの一例を示し
ている。この排熱回収ボイラ１は後に詳しく説明される
ように機器の上部に蒸気ドラムを配置し、伝熱管を鉛直
方向に配置した横置き形の自然循環形ボイラであって、
ボイラダクト２内に過熱器３、高圧蒸発器４、脱硝装置
５、高圧節炭器６、低圧蒸発器７および低圧節炭器８が
配置されている。ガスタービン等からの排ガスはボイラ
ダクト２内に流入し、まず過熱器３、高圧蒸発器４を経
て脱硝装置５に至り、含有する窒素酸化物が除去された
後、高圧節炭器５、低圧蒸発器６、低圧節炭器７を順次
通過し、各伝熱管内の内部流体と熱交換を行ない、温度
が低下する。FIG. 9 shows an example of a conventional exhaust heat recovery boiler. This exhaust heat recovery boiler 1 is a horizontal type natural circulation boiler in which a steam drum is arranged above the equipment and heat transfer tubes are arranged in the vertical direction, as will be described later in detail.
A superheater 3, a high pressure evaporator 4, a denitration device 5, a high pressure economizer 6, a low pressure evaporator 7, and a low pressure economizer 8 are arranged in the boiler duct 2. Exhaust gas from a gas turbine or the like flows into the boiler duct 2, first reaches the denitration device 5 via the superheater 3 and the high pressure evaporator 4, and after the nitrogen oxides contained therein are removed, the high pressure economizer 5 and low pressure evaporation After passing through the vessel 6 and the low pressure economizer 7 in sequence, heat is exchanged with the internal fluid in each heat transfer tube, and the temperature drops.
【０００４】高圧蒸気ドラム９および低圧蒸気ドラム１
０では、各圧力の蒸発器内で発生した二相流が流入し、
蒸気と缶水とに分離される。発生した蒸気は図示しない
蒸気タービンに送られる。High-pressure steam drum 9 and low-pressure steam drum 1
At 0, the two-phase flow generated in the evaporator at each pressure flows in,
It is separated into steam and canned water. The generated steam is sent to a steam turbine (not shown).
【０００５】本図に示したような自然循環形排熱回収ボ
イラは、強制循環形の排熱回収ボイラと比較すると、循
環ポンプが不要であり、所内動力を軽減できるという利
点に加えて、地上からボイラ最上部までの高さを低く抑
えることができ、ボイラを自立構造とすることが可能
で、支持鉄骨が不要となるなどの長所を有しているた
め、多くのコンバインドサイクル発電プラントで採用さ
れる傾向にある。Compared with the forced circulation type exhaust heat recovery boiler, the natural circulation type exhaust heat recovery boiler as shown in the figure does not require a circulation pump, and in addition to the advantage that the power in the plant can be reduced, Since the height from the top to the top of the boiler can be kept low, the boiler can have a self-supporting structure, and it has the advantages that it does not require a supporting steel frame, so it is used in many combined cycle power plants. Tend to be.
【０００６】一方、図１０は上記排熱回収ボイラ１の伝
熱管群を示したものである。ケーシング１７は４辺で短
形のダクトを形成しており、内部に保温材１８が内張り
され、伝熱管群はケーシング１７の中央に配置される。
伝熱管１２の内部を流れる水あるいは蒸気は外部を流れ
る排ガスと熱交換して加熱される。この伝熱管１２は比
較的温度の低い排ガスから効率よく熱回収するため、フ
ィン付き管を使用することが多い。On the other hand, FIG. 10 shows a heat transfer tube group of the exhaust heat recovery boiler 1. The casing 17 forms a short duct with four sides, a heat insulating material 18 is lined inside, and the heat transfer tube group is arranged at the center of the casing 17.
Water or steam flowing inside the heat transfer tube 12 is heated by exchanging heat with the exhaust gas flowing outside. Since the heat transfer tube 12 efficiently recovers heat from exhaust gas having a relatively low temperature, a finned tube is often used.
【０００７】伝熱管１２の上端は上部管寄せ１１、下端
は下部管寄せ１４に接続され、支持板１３で複数の伝熱
管１２を連結して伝熱管パネルを形成している。伝熱管
パネルは下部管寄せ１４に取り付けられた支持脚１５で
その荷重を支持され、上部管寄せ１１に設けられた突起
１６はブラケット１９に挟み込まれる形になっており、
運転時における伝熱管パネルの鉛直上方向への熱膨張を
吸収できるようになっている。また、上下管寄せ１１の
支持部では地震時などで水平方向の力が伝熱管パネルに
作用した場合にこの力をケーシング１７へ伝達する役目
も負う。The upper end of the heat transfer tube 12 is connected to the upper head 11 and the lower end is connected to the lower head 14, and a plurality of heat transfer tubes 12 are connected by a support plate 13 to form a heat transfer tube panel. The heat transfer tube panel has its load supported by the support legs 15 attached to the lower header 14, and the projection 16 provided on the upper header 11 is sandwiched by the brackets 19.
The thermal expansion of the heat transfer tube panel in the vertically upward direction during operation can be absorbed. In addition, the supporting portion of the vertical header 11 also has a role of transmitting this force to the casing 17 when a horizontal force acts on the heat transfer tube panel due to an earthquake or the like.
【０００８】支持板１３は図１１に示すように平板に伝
熱管１２を通す孔を穿って構成したものであり、主とし
て伝熱管１２のボイラ幅方向の振動を防止するために設
けられる。As shown in FIG. 11, the support plate 13 is formed by forming a hole through which the heat transfer tube 12 is inserted, and is provided mainly for preventing vibration of the heat transfer tube 12 in the boiler width direction.
【０００９】一方、図１２は伝熱管パネルをガス流動方
向から、つまり前面で見た図である。１枚の伝熱管パネ
ルは通常２列または３列の伝熱管で構成され、これをガ
ス流動方向に１枚以上配置して伝熱管群を形成してい
る。ガス流動方向の同じ平面には処理するガス量によっ
て適宜複数の伝熱管パネルに分割されるが、現状では図
１２に示すように数メートル幅のケーシング１７に１枚
の伝熱管パネルを配置したものが多い。On the other hand, FIG. 12 is a view of the heat transfer tube panel viewed from the gas flow direction, that is, the front surface. One heat transfer tube panel is usually composed of two or three rows of heat transfer tubes, and one or more heat transfer tubes are arranged in the gas flow direction to form a heat transfer tube group. Although it is divided into a plurality of heat transfer tube panels on the same plane in the gas flow direction depending on the amount of gas to be processed, at present, one heat transfer tube panel is arranged in a casing 17 having a width of several meters as shown in FIG. There are many.
【００１０】このように伝熱管群を複数の伝熱管パネル
に分割することは、製作、ハンドリング、保守点検等が
容易になるため、非常に好ましいやり方である。Dividing the heat transfer tube group into a plurality of heat transfer tube panels in this way is a very preferable method because it facilitates production, handling, maintenance and inspection.
【００１１】以上に述べた排熱回収ボイラ１は現状では
伝熱部分の間口が高さ１０ｍ×幅１０ｍ程度のものが稼
働しているが、近年発電用ガスタービンの大型化に伴
い、排熱回収ボイラも大型化する傾向にあり、伝熱部高
さ１６ｍ、幅１２ｍ、全長４０ｍを越えるような超大型
の排熱回収ボイラも計画されている。The exhaust heat recovery boiler 1 described above is currently operating with a heat transfer portion having a frontage of about 10 m in height and 10 m in width. There is a tendency for the recovery boiler to become larger, and an ultra-large heat recovery steam generator with a height of 16 m, a width of 12 m, and a total length of 40 m is planned.
【００１２】[0012]
【発明が解決しようとする課題】上述した排熱回収ボイ
ラにおいて、伝熱管１２に地震力が作用し、ガス流動方
向に平行に水平力が発生した場合、上部および下部管寄
せ１１、１４を支点として長い伝熱管１２が変位する。
この変位する様子は全長にわたってたわむような低次モ
ードの振動が発生する。これに伴って伝熱管１２と双方
の管寄せ１１、１４との接合部に曲げ応力が発生するこ
とになる。In the above-mentioned exhaust heat recovery boiler, when seismic force acts on the heat transfer tube 12 and a horizontal force is generated in parallel to the gas flow direction, the upper and lower tube drawers 11, 14 are used as fulcrums. As a result, the long heat transfer tube 12 is displaced.
This displacement causes vibration of a low-order mode that bends over the entire length. Along with this, bending stress is generated at the joint between the heat transfer tube 12 and both of the headers 11 and 14.
【００１３】一方、排熱回収ボイラ１に使用される伝熱
管１２は５０．８mm程度の口径のものであり、フィンは
付加質量として作用するので、一本当たりの剛性が比較
的低い。また、上記の支持板１３による固定では、管孔
と伝熱管１２との間にわずかではあるが間隙があり、貫
通部において伝熱管１２と支持板１３とでモーメント伝
達が少ないので、伝熱管パネルの剛性を高くする効果が
殆ど期待できない。On the other hand, the heat transfer tube 12 used in the exhaust heat recovery boiler 1 has a diameter of about 50.8 mm, and since the fins act as an additional mass, the rigidity per one is relatively low. Further, in the fixing by the support plate 13 described above, there is a slight gap between the tube hole and the heat transfer tube 12, and the moment transfer between the heat transfer tube 12 and the support plate 13 is small in the penetrating portion, so the heat transfer tube panel The effect of increasing the rigidity of can hardly be expected.
【００１４】従来の排熱回収ボイラでは上記のような伝
熱管１２の変位が発生しても、全体が小型であり、伝熱
管長さが比較的短いため、伝熱管１２に発生する曲げ応
力はそれほど大きくなく、また、ボイラ幅方向の同一平
面内に伝熱管パネルが１枚しかない場合には、伝熱管パ
ネルの中間の変位をケーシングから拘束するのも容易で
あり、これによって伝熱管１２の変位を抑えることがで
きるので、ガス流動方向と平行な水平剛性が問題となる
ことはなかった。In the conventional heat recovery steam generator, even if the heat transfer tube 12 is displaced as described above, the overall size is small and the length of the heat transfer tube is relatively short. Therefore, the bending stress generated in the heat transfer tube 12 is small. When the heat transfer tube panel is not so large and there is only one heat transfer tube panel in the same plane in the boiler width direction, it is easy to restrain the intermediate displacement of the heat transfer tube panel from the casing. Since the displacement can be suppressed, the horizontal rigidity parallel to the gas flow direction did not pose a problem.
【００１５】しかしながら、前述したような最近の超大
型の排熱回収ボイラでは伝熱管１２が非常に長くなるた
め、地震などの水平力を受けた場合に発生する曲げ応力
が極めて大きくなり、伝熱管１２の剛性を頼みに受け止
めるのが困難になる。このとき、伝熱管１２は内部圧力
により発生する引張り応力に加えて、過大な曲げモーメ
ントによる引張り応力を受けることになり、甚だ好まし
くない。However, in the recent large-sized exhaust heat recovery boiler as described above, the heat transfer tube 12 becomes very long, so that the bending stress generated when a horizontal force such as an earthquake is applied becomes extremely large, and the heat transfer tube becomes too large. It becomes difficult to count on the rigidity of 12. At this time, the heat transfer tube 12 receives tensile stress due to an excessive bending moment, in addition to tensile stress generated due to internal pressure, which is extremely undesirable.
【００１６】さらに、伝熱管１２の自重を下部で支持す
る自立方式の場合、伝熱管１２が長くなると、限界座屈
荷重が著しく低下し、自立さえも不可能になってしまう
という問題がある。Further, in the case of the self-supporting system in which the self-weight of the heat transfer tube 12 is supported at the lower part, when the heat transfer tube 12 becomes long, there is a problem that the limit buckling load is remarkably reduced and even self-supporting becomes impossible.
【００１７】また、超大型の排熱回収ボイラ１では伝熱
管群はボイラ幅方向にも複数の伝熱管パネルから形成さ
れるので、同一平面内の伝熱管パネル全体にケーシング
１７から有効な振れ止めを設けることが難しい。Further, in the ultra-large heat recovery steam generator 1, since the heat transfer tube group is formed of a plurality of heat transfer tube panels in the width direction of the boiler as well, an effective steady rest is prevented from the casing 17 over the entire heat transfer tube panel in the same plane. Is difficult to provide.
【００１８】そこで、本発明の目的は伝熱管パネルが過
大な水平方向の外力を受けたとき、これを安全に支えら
れるようにした伝熱管パネルを提供することにある。Therefore, an object of the present invention is to provide a heat transfer tube panel which can safely support an external force applied to the heat transfer tube panel in the horizontal direction.
【００１９】また、別の目的は自立方式伝熱管パネルを
構成する場合に座屈を起こす懸念のない伝熱管パネルを
提供することにある。Another object of the present invention is to provide a heat transfer tube panel which does not cause buckling when a self-supporting heat transfer tube panel is constructed.
【００２０】[0020]
【課題を解決するための手段】上記目的を達成するため
に本発明は上下に配置される一対の管寄せ間を複数列の
伝熱管をもって連通し、かつこれらの伝熱管を複数列に
わたる支持板で双方の管寄せの中間部を連結してなる伝
熱管パネルにおいて、前記伝熱管パネルの側面に倣い該
上部管寄せ近傍から該下部管寄せ近傍まで延びるパネル
側板を設けたことを特徴とするものである。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a plurality of rows of heat transfer tubes that communicate between a pair of vertically arranged headers, and a support plate that extends over these rows. In a heat transfer tube panel formed by connecting the intermediate portions of both the tube drawers with each other, a panel side plate that extends from the vicinity of the upper pipe drawer to the vicinity of the lower pipe drawer is provided along the side surface of the heat transfer tube panel. Is.
【００２１】[0021]
【作用】たとえば、水平方向に地震力が作用して鉛直方
向に延びる伝熱管パネルに励振力が加えられる。図２に
示されるように、排ガス流動方向からみて伝熱管パネル
の正面と隣り合う側面に設けられたパネル側板Ｐは上部
管寄せ近傍から下部管寄せ近傍まで寸法Ｌにわたって設
けられ、水平方向の外力Ｆに抗して伝熱管パネル全体に
変位が起こるのを防止する。すなわち、外力を受けたと
き強度が弱いと目される中央部分の剛性を大きく高めて
これに抗する。こうした強度を高めるために断面２次モ
ーメントはパネル側板を使用しない伝熱管のみの場合と
比較して、数倍程度大きくする。Action: For example, an exciting force is applied to the heat transfer tube panel extending in the vertical direction by the seismic force acting in the horizontal direction. As shown in FIG. 2, the panel side plate P provided on the side surface adjacent to the front surface of the heat transfer tube panel when viewed from the exhaust gas flow direction is provided over the dimension L from the vicinity of the upper pipe header to the vicinity of the lower pipe header, and external force in the horizontal direction is provided. Prevents displacement of the entire heat transfer tube panel against F. That is, the rigidity of the central portion, which is considered to be weak when an external force is applied, is greatly increased to resist this. In order to increase the strength, the moment of inertia of section is increased several times as compared with the case where only the heat transfer tube without the panel side plate is used.
【００２２】このように断面２次モーメントを高くする
ならば、限界座屈荷重も増大し、伝熱管の支持の仕方が
自立方式とした場合に座屈が起こりにくくなる。If the second moment of area is increased as described above, the limit buckling load also increases, and buckling is less likely to occur when the heat transfer tube is supported by a self-supporting method.
【００２３】さらに、伝熱管パネルの正面を避け、その
側面に設けられるパネル側板は、排ガスの流動域から外
れた位置にあり、伝熱管パネルを通る排ガスの流動を少
しも妨げない。Further, the panel side plate provided on the side surface of the heat transfer tube panel, avoiding the front surface, is located outside the flow area of the exhaust gas, and does not hinder the flow of the exhaust gas through the heat transfer tube panel.
【００２４】[0024]
【実施例】以下、本発明の一実施例を図１、図３、図
４、および図５を参照して説明する。なお、従来技術に
よって述べられた構成と同じものには同一の符号を付し
て説明を省略する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS. 1, 3, 4, and 5. The same components as those described in the related art are designated by the same reference numerals and the description thereof will be omitted.
【００２５】図１において、伝熱管パネルは上部および
下部管寄せ１１、１４、双方の管寄せ１１、１４を連通
する多数の伝熱管１２およびこれらの伝熱管１２を複数
列にわたり連結する支持板１３から構成されている。In FIG. 1, the heat transfer tube panel includes an upper and a lower head 11 and 14, a large number of heat transfer tubes 12 that communicate the both heads 11 and 14, and a support plate 13 that connects these heat transfer tubes 12 in a plurality of rows. It consists of
【００２６】この伝熱管パネルの両側面には上部管寄せ
１１近くから下部管寄せ１４近くに延びるパネル側板２
０ａ、２０ｂが設けられる。このパネル側板２０ａ、２
０ｂは、図３に示されるように、各々支持板１３の端部
に後に詳述される支持方法で固定される。また、パネル
側板２０ａ、２０ｂは、図４に示されるように、断面コ
字状のもので、３列の伝熱管１２にわたる支持板１３に
倣って同じパネル奥行き寸法を保って形成される。この
パネル側板２０ａ、２０ｂは開放側を外方向に向けて取
り付けられ、各支持板１３の前後を切り欠いて構成した
延長部１３ａとの係合が保たれる。On both sides of this heat transfer tube panel, panel side plates 2 extending from near the upper header 11 to near the lower header 14
0a and 20b are provided. This panel side plate 20a, 2
As shown in FIG. 3, 0b is fixed to each end of the support plate 13 by a supporting method described in detail later. Further, as shown in FIG. 4, the panel side plates 20a and 20b have a U-shaped cross section, and are formed following the support plate 13 extending over the three rows of the heat transfer tubes 12 and maintaining the same panel depth dimension. The panel side plates 20a and 20b are attached with their open sides facing outward, and the engagement with the extension portions 13a formed by cutting out the front and rear of each support plate 13 is maintained.
【００２７】このパネル側板２０ａ、２０ｂと各支持板
１３の延長部１３ａとの係合は伝熱管パネル全体の中心
となる真中の支持板１３と、その両側に配置される支持
板１３との間で異なる支持方法が採用される。すなわ
ち、図５において、（ａ）は真中にくる支持板１３の延
長部１３ａの支持方法を示しており、パネル側板２０ｂ
（ここでは、パネル側板２０ｂが代表として示される
が、パネル側板２０ａについても同様である）に穿たれ
た穴２１を貫いて延びる延長部１３ａはパネル側板２０
ｂに溶接で固定されている。The engagement between the panel side plates 20a, 20b and the extension 13a of each support plate 13 is between the center support plate 13 which is the center of the entire heat transfer tube panel and the support plates 13 arranged on both sides thereof. Different support methods are adopted. That is, in FIG. 5, (a) shows a method of supporting the extension 13a of the support plate 13 which is in the center, and the panel side plate 20b.
(Here, the panel side plate 20b is shown as a representative, but the same applies to the panel side plate 20a). The extension 13a extending through the hole 21 formed in the panel side plate 20b is the panel side plate 20b.
It is fixed to b by welding.
【００２８】これに対して、それ以外の支持板１３は、
（ｂ）に示されるように支持板１３の延長部１３ａがパ
ネル側板２０ｂの穴２１を貫いて延びるのは同様である
が、延長部１３ａはパネル側板２０ｂに固定されてな
く、延長部１３ａに溶接された位置決め片２２を備えて
いる。このパネル側板２０ｂの穴２１は綿密に計算され
た幅寸法を有する。つまり、この穴２１は伝熱管パネル
鉛直方向に生じるパネル側板２０ｂと伝熱管１２との間
の熱膨張差を吸収できる一方、水平方向の地震力が伝熱
管パネルに作用したときには延長部１３ａとパネル側板
２０ｂとが接触して水平方向の外力による荷重を受けら
れるように慎重に穴幅を計算して決める。上記実施例の
ように構成したものにおいては、ほぼ伝熱管１２の全長
にわたり設けたパネル側板により２０ａ、２０ｂにより
剛性が高まり水平方向に外力が作用しても伝熱管パネル
の中央部分に変位が起こらない。本実施例では断面２次
モーメントで５倍の強度の向上を見込むことができ、伝
熱管パネルの振動の防止に優れて有用であることが確認
された。On the other hand, the other supporting plates 13 are
Similarly, as shown in (b), the extension 13a of the support plate 13 extends through the hole 21 of the panel side plate 20b. However, the extension 13a is not fixed to the panel side plate 20b and is extended to the extension 13a. The positioning piece 22 is welded. The hole 21 of this panel side plate 20b has a carefully calculated width dimension. In other words, the hole 21 can absorb the difference in thermal expansion between the panel side plate 20b and the heat transfer tube 12 that occurs in the vertical direction of the heat transfer tube panel, while the extension portion 13a and the panel when the horizontal seismic force acts on the heat transfer tube panel. The hole width is carefully calculated and determined so that the side plate 20b comes into contact with the side plate 20b to receive a load due to an external force in the horizontal direction. In the structure as in the above embodiment, the panel side plates provided over substantially the entire length of the heat transfer tube 12 increase the rigidity of the heat transfer tubes 20a and 20b, and even if an external force acts in the horizontal direction, the center part of the heat transfer tube panel is displaced. Absent. In this example, it is possible to expect a five-fold increase in strength at the second moment of area, and it was confirmed that it is excellent and useful in preventing vibration of the heat transfer tube panel.
【００２９】また、このパネル側板２０ａ、２０ｂによ
り断面２次モーメントを増大させることができ、その分
限界座屈荷重が大きくなって座屈を起こしにくくするこ
とが可能である。Further, the panel side plates 20a and 20b can increase the moment of inertia of area, and the limit buckling load is increased by that amount, and it is possible to prevent buckling.
【００３０】さらに、伝熱管１２のほぼ全長にわたり配
置されるパネル側板２０ａ、２０ｂは、ボイラ幅方向に
対してダクトを仕切ることになり、ボイラ幅方向に発生
する気柱振動の振動数を高い周波数の方へシフトする働
きがある。Further, the panel side plates 20a, 20b arranged over substantially the entire length of the heat transfer tube 12 partition the duct in the boiler width direction, and the frequency of air column vibration generated in the boiler width direction is high. There is a function to shift to.
【００３１】次に、本発明の他の実施例を図６および図
７を参照して説明する。図６において、本実施例のパネ
ル側板２０ａ、２０ｂについては上記実施例のものと同
じである。本実施例ではこのパネル側板２０ａ、２０ｂ
の上端と下端とで係合する上部連結部材２３と下部連結
部材２４とが設けられる。この上部および下部連結部材
２３、２４は上部および下部管寄せ１１、１４に溶接に
よって固定されており、パネル側板２０ａ、２０ｂにも
たらされる荷重を双方の管寄せ１１、１４に伝えて伝熱
管パネル全体の剛性を高めるようにしたものである。図
７はパネル側板２０ｂの内側に若干の隙間を持たせて係
合させた上部連結部材２３の詳細断面形状を示してい
る。図示は省略しているが、下部連結部材２４も同様な
断面形状を有し、パネル側板２０ｂと嵌合している。Next, another embodiment of the present invention will be described with reference to FIGS. 6 and 7. In FIG. 6, the panel side plates 20a and 20b of this embodiment are the same as those of the above embodiment. In this embodiment, the panel side plates 20a, 20b
An upper connecting member 23 and a lower connecting member 24 that engage with each other at the upper end and the lower end thereof are provided. The upper and lower connecting members 23 and 24 are fixed to the upper and lower pipe headers 11 and 14 by welding, and the load applied to the panel side plates 20a and 20b is transmitted to both the pipe headers 11 and 14 and the entire heat transfer tube panel is transmitted. It is intended to increase the rigidity of. FIG. 7 shows a detailed cross-sectional shape of the upper connecting member 23 engaged with the inside of the panel side plate 20b with a slight gap. Although illustration is omitted, the lower connecting member 24 also has a similar cross-sectional shape and is fitted to the panel side plate 20b.
【００３２】本実施例の双方の連結部材２３、２４によ
ってパネル側板２０ａ、２０ｂによる高い剛性と相まっ
てさらに強度の増加を見込むことができ、伝熱管パネル
の振動の防止を確実に果すことが可能である。The strength of the panel side plates 20a and 20b can be further increased by both of the connecting members 23 and 24 of this embodiment, so that further increase in strength can be expected, and the vibration of the heat transfer tube panel can be reliably prevented. is there.
【００３３】また、図８も他の実施例を示すもので、特
に自立式伝熱管パネルを構成する場合のものである。本
実施例のパネル側板２５ａ、２５ｂ（２５ａは図示省
略）の一端は下部管寄せ１４に溶接によって固定され
る。これに伴ない５枚すべての支持板１３はパネル側板
２５ａ、２５ｂとの間に固定部分のない、すなわち、図
５（ｂ）に示される延長部１３ａと穴２０ｂとの間に遊
びを持たせた滑り構造に構成される。FIG. 8 also shows another embodiment, particularly in the case of constructing a self-supporting heat transfer tube panel. One ends of the panel side plates 25a and 25b (25a is not shown) of the present embodiment are fixed to the lower header 14 by welding. Accordingly, all five support plates 13 have no fixed part between the panel side plates 25a and 25b, that is, there is a play between the extension 13a and the hole 20b shown in FIG. 5 (b). It is composed of a sliding structure.
【００３４】また、連結部材２３を使って伝熱管パネル
の上部が上部ヘッダ１１に支持される。これは図７に示
されるものと同一の構成である。The upper part of the heat transfer tube panel is supported by the upper header 11 by using the connecting member 23. This is the same configuration as shown in FIG.
【００３５】本実施例の構成においては、上記した図６
のものと同様な働きを得ることができる。ここで、伝熱
管１２およびパネル側板２５ａ、２５ｂは共に伝熱管パ
ネルの下部で固定され、熱膨張する際に互いに相手の変
位を拘束しない利点を有する。In the configuration of this embodiment, the configuration shown in FIG.
You can get the same function as that of Here, the heat transfer tube 12 and the panel side plates 25a and 25b are both fixed at the lower part of the heat transfer tube panel, and have an advantage that they do not restrain each other's displacement during thermal expansion.
【００３６】[0036]
【発明の効果】以上の説明から明らかなように本発明は
伝熱管パネルの上部管寄せから下部管寄せまで、あるい
は上部管寄せ近くから下部管寄せ近くに延びるパネル側
板を伝熱管パネルの側面に設けているので、過大な水平
方向の外力が作用しても伝熱管パネルに曲げ応力が発生
せず、排熱回収熱交換器の安全性を向上させることがで
きる。As is apparent from the above description, according to the present invention, a panel side plate extending from the upper pipe header to the lower pipe header or from the upper pipe header to the lower pipe header is provided on the side surface of the heat pipe panel. Since it is provided, no bending stress is generated in the heat transfer tube panel even if an excessive external force acts in the horizontal direction, and the safety of the exhaust heat recovery heat exchanger can be improved.
【００３７】また、自立方式の伝熱管パネルを構成する
場合にパネル全体の限界座屈荷重を高めることができ、
座屈による伝熱管パネルの損傷をなくすことが可能であ
る。When a self-supporting heat transfer tube panel is constructed, the limit buckling load of the entire panel can be increased,
It is possible to eliminate damage to the heat transfer tube panel due to buckling.
【図１】本発明による伝熱管パネルの一実施例を示す斜
視図。FIG. 1 is a perspective view showing an embodiment of a heat transfer tube panel according to the present invention.
【図２】本発明の作用を説明するための図。FIG. 2 is a diagram for explaining the operation of the present invention.
【図３】図１に示される伝熱管パネルを組込んだ排熱回
収熱交換器の断面図。FIG. 3 is a sectional view of an exhaust heat recovery heat exchanger incorporating the heat transfer tube panel shown in FIG.
【図４】図１に示される伝熱管パネルの断面図。4 is a cross-sectional view of the heat transfer tube panel shown in FIG.
【図５】図１に示されるパネル側板と支持板との結合部
を示す断面図。5 is a cross-sectional view showing a connecting portion between a panel side plate and a support plate shown in FIG.
【図６】本発明の他の実施例に係る伝熱管パネルの立面
図。FIG. 6 is an elevation view of a heat transfer tube panel according to another embodiment of the present invention.
【図７】図６に示される伝熱管パネルの断面図。7 is a sectional view of the heat transfer tube panel shown in FIG.
【図８】本発明の他の実施例に係る伝熱管パネルの立面
図。FIG. 8 is an elevation view of a heat transfer tube panel according to another embodiment of the present invention.
【図９】従来の排熱回収熱交換器を示す構成図。FIG. 9 is a configuration diagram showing a conventional exhaust heat recovery heat exchanger.
【図１０】従来の伝熱管パネルの立面図。FIG. 10 is an elevation view of a conventional heat transfer tube panel.
【図１１】従来の伝熱管パネルに係る支持板の平面図。FIG. 11 is a plan view of a support plate according to a conventional heat transfer tube panel.
【図１２】従来の伝熱管パネルを組込んだ排熱回収熱交
換の断面図。FIG. 12 is a cross-sectional view of exhaust heat recovery heat exchange incorporating a conventional heat transfer tube panel.
１１…上部管寄せ、１２…伝熱管、１３…支持板、１４
…下部管寄せ、２０ａ，２０ｂ，２５ａ，２５ｂ…パネ
ル側板、２２…位置決め片、２３…上部連結部材、２４
…下部連結部材11 ... Upper pipe assembly, 12 ... Heat transfer tube, 13 ... Support plate, 14
... lower pipe puller, 20a, 20b, 25a, 25b ... panel side plate, 22 ... positioning piece, 23 ... upper connecting member, 24
... Lower connecting member
Claims (1)
列の伝熱管をもって連通し、かつこれらの伝熱管を複数
列にわたる支持板で双方の管寄せの中間部を連結してな
る伝熱管パネルにおいて、前記伝熱管パネルの側面に倣
い該上部管寄せ近傍から該下部管寄せ近傍まで延びるパ
ネル側板を設けたことを特徴とする伝熱管パネル。1. A heat transfer tube comprising a plurality of rows of heat transfer tubes which are connected to each other between a pair of vertically arranged heat transfer tubes, and which are connected to each other by a support plate extending over a plurality of rows. A heat transfer tube panel, characterized in that a panel side plate is provided which extends from a vicinity of the upper tube approach to a vicinity of the lower tube approach along a side surface of the heat transfer tube panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10080592A JP2753176B2 (en) | 1992-04-21 | 1992-04-21 | Heat transfer tube panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10080592A JP2753176B2 (en) | 1992-04-21 | 1992-04-21 | Heat transfer tube panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05296403A true JPH05296403A (en) | 1993-11-09 |
| JP2753176B2 JP2753176B2 (en) | 1998-05-18 |
Family
ID=14283604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10080592A Expired - Fee Related JP2753176B2 (en) | 1992-04-21 | 1992-04-21 | Heat transfer tube panel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2753176B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013057463A (en) * | 2011-09-08 | 2013-03-28 | Babcock Hitachi Kk | Exhaust heat recovery boiler |
-
1992
- 1992-04-21 JP JP10080592A patent/JP2753176B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013057463A (en) * | 2011-09-08 | 2013-03-28 | Babcock Hitachi Kk | Exhaust heat recovery boiler |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2753176B2 (en) | 1998-05-18 |
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