JP2015215157A - Heat exchange device - Google Patents

Heat exchange device Download PDF

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JP2015215157A
JP2015215157A JP2015112181A JP2015112181A JP2015215157A JP 2015215157 A JP2015215157 A JP 2015215157A JP 2015112181 A JP2015112181 A JP 2015112181A JP 2015112181 A JP2015112181 A JP 2015112181A JP 2015215157 A JP2015215157 A JP 2015215157A
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outer skin
wall
frame member
cylinder
anchor
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JP2015112181A
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JP5990628B2 (en
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勝木　誠
Makoto Katsuki
誠 勝木
順一 佐野
Junichi Sano
順一 佐野
耕三 山田
Kozo Yamada
耕三 山田
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Hitachi Zosen Corp
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Hitachi Zosen Corp
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

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  • Air Supply (AREA)
  • Chimneys And Flues (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

PROBLEM TO BE SOLVED: To prevent generation of cracking on an inner wall caused by thermal expansion of a jacket.SOLUTION: An outer cylinder and an inner cylinder are concentrically and radially disposed at an interval. A low-temperature gas passage is disposed between the outer cylinder and the inner cylinder, and a high-temperature gas passage is formed in the inner cylinder. The inner cylinder is composed of a metallic vertical jacket 21, and an inner wall 22 made of a refractory material and coated on an inner face of the jacket 21. A thermal expansion coefficient of the jacket 21 is higher than that of the inner wall 22. A plurality of anchors 31 are buried in the inner wall 22 at prescribed intervals in a height direction on a plurality of places on the circumference. A supporting frame 32 is welded and fixed to the jacket 21, engaged with the plurality of anchors 3 so that the jacket freely deforms in the radial direction by thermal expansion, and supported by recessed portions of the inner wall 22.

Description

この発明は、都市ごみ焼却炉や産業廃棄物焼却炉における廃棄物の焼却処理および焼却炉から排出される灰を溶融処理する過程で発生する高温の燃焼ガス（排ガス）の熱エネルギーを空気と熱交換することにより回収し、熱エネルギーの有効利用を図る熱交換装置に関する。   The present invention relates to the thermal energy of high-temperature combustion gas (exhaust gas) generated in the process of incineration of waste in municipal waste incinerators and industrial waste incinerators and in the process of melting ash discharged from the incinerators. The present invention relates to a heat exchanging device that is recovered by exchanging and that makes effective use of heat energy.

この種の熱交換装置としては、外筒および内筒が、同心状かつ半径方向に間隔をおいて配置されており、外筒および内筒間に低温ガス通路が、内筒内に高温ガス通路がそれぞれ形成されており、内筒は、金属製垂直状外皮と、外皮内面に被覆されている耐火材製内壁とよりなり、外皮内面には耐火材が貼り付けられているものが知られている（例えば、特許文献１参照。）。   In this type of heat exchange device, an outer cylinder and an inner cylinder are arranged concentrically and spaced apart in the radial direction, a low temperature gas passage is provided between the outer cylinder and the inner cylinder, and a high temperature gas passage is provided in the inner cylinder. The inner cylinder is composed of a metal vertical outer shell and a fire-resistant inner wall coated on the inner surface of the outer shell, and the inner surface of the outer shell is known to have a refractory material attached thereto. (For example, refer to Patent Document 1).

この種の熱交換装置では、金属製外皮の熱膨張率は、耐火材製内壁の熱膨張率よりも大である。そのため、外皮の熱膨張にともなって内壁が外皮半径方向外向きに引っ張られると、内壁には引張応力が作用してクラックが発生する。クラックに高温ガスが侵入すると、外皮の高温腐食を招き、施設の安全操業を阻害するばかりでなく、熱交換装置の補修費用が発生するため経済的でない。   In this type of heat exchange device, the coefficient of thermal expansion of the metal shell is greater than the coefficient of thermal expansion of the refractory inner wall. Therefore, when the inner wall is pulled outward in the radial direction of the outer skin along with the thermal expansion of the outer skin, a tensile stress acts on the inner wall to generate a crack. If high temperature gas penetrates into the crack, it will cause high temperature corrosion of the outer skin and hinder the safe operation of the facility, and the cost of repairing the heat exchange device will be generated, which is not economical.

特開２０１０−０２５３７５号公報JP 2010-025375 A

この発明の目的は、外皮の熱膨張によって、内壁にクラックが発生することを防止することができる熱交換装置を提供することにある。   An object of the present invention is to provide a heat exchange device that can prevent the inner wall from cracking due to thermal expansion of the outer skin.

この第１発明による熱交換装置は、外筒および内筒が、同心状かつ半径方向に間隔をおいて配置されており、外筒および内筒間に低温ガス通路が、内筒内に高温ガス通路がそれぞれ形成されており、内筒は、金属製外皮と、外皮内面に被覆されている耐火材製内壁とよりなり、内壁にアンカが埋設されており、アンカは、外皮の熱膨張による外皮半径方向の変形を自由とするように外皮内面に支持されている外端部を有しているものである。   In the heat exchange device according to the first aspect of the invention, the outer cylinder and the inner cylinder are concentrically arranged at a radial interval, and a low-temperature gas passage is provided between the outer cylinder and the inner cylinder, and a high-temperature gas is provided in the inner cylinder. Each of the passages is formed, and the inner cylinder is composed of a metal outer skin and an inner wall made of a refractory material coated on the inner surface of the outer skin. An anchor is embedded in the inner wall, and the anchor is an outer skin due to thermal expansion of the outer skin. It has an outer end supported on the inner surface of the outer skin so as to freely deform in the radial direction.

この第１発明による熱交換装置では、外皮がその熱膨張によって外皮半径方向に変形しても、その変形はアンカに伝達されず、内壁に引張応力が作用させられることがない。したがって、外皮の変形によって、内壁にクラックが発生することを防止できる。   In the heat exchanging device according to the first aspect of the invention, even if the outer skin is deformed in the radial direction of the outer skin due to its thermal expansion, the deformation is not transmitted to the anchor and no tensile stress is applied to the inner wall. Therefore, it is possible to prevent the inner wall from cracking due to the deformation of the outer skin.

さらに、この第１発明による熱交換装置において、アンカの外端部から下向きに係合ロッドがのびており、係合ロッドは、支持枠に通されており、支持枠は、内壁に対し出没自在でありかつ外皮の熱膨張による外皮半径方向の変形量以上の間隔をおいて外皮半径方向に相対させられた内枠部材および外枠部材を有しており、内枠部材にアンカが載置されており、外枠部材は、外皮内面に固定されていると、支持枠だけのシンプルな構造によって、外皮に対しアンカを外皮半径方向の変形を自由に支持することができる。   Further, in the heat exchanging device according to the first aspect of the present invention, the engagement rod extends downward from the outer end of the anchor, the engagement rod is passed through the support frame, and the support frame can be protruded and retracted with respect to the inner wall. And having an inner frame member and an outer frame member that are opposed to each other in the radial direction of the outer skin with an interval greater than the deformation amount in the radial direction of the outer skin due to thermal expansion of the outer skin, and an anchor is placed on the inner frame member In addition, when the outer frame member is fixed to the inner surface of the outer skin, the anchor can be freely supported by the outer skin in the radial direction of deformation with a simple structure including only the support frame.

この第２発明による熱交換装置は、外筒および内筒が、同心状かつ半径方向に間隔をおいて配置されており、外筒および内筒間に低温ガス通路が、内筒内に高温ガス通路がそれぞれ形成されており、内筒は、金属製外皮と、外皮内面に被覆されている耐火材製内壁とよりなり、外皮は、外皮軸方向にのびた継ぎ目を有しており、継ぎ目の両縁部は、外皮の熱膨張による外皮周方向の変形量以上の幅でオーバーラップしうるように構成されており、内壁にアンカが埋設されており、アンカは、外皮の熱膨張による外皮周方向の変形を自由とするように外皮内面に支持されている外端部を有しているものである。   In the heat exchange device according to the second aspect of the invention, the outer cylinder and the inner cylinder are concentrically arranged at a distance in the radial direction, and a low-temperature gas passage is provided between the outer cylinder and the inner cylinder, and a high-temperature gas is provided in the inner cylinder. Each of the passages is formed, and the inner cylinder is composed of a metal outer skin and an inner wall made of a refractory material coated on the inner surface of the outer skin, and the outer skin has a seam extending in the direction of the outer skin axis. The edge is configured to overlap with a width that is greater than the amount of deformation in the outer skin circumferential direction due to thermal expansion of the outer skin, and an anchor is embedded in the inner wall, and the anchor is in the outer circumferential direction due to thermal expansion of the outer skin. It has an outer end supported on the inner surface of the outer skin so that the deformation of the outer shell is free.

この第２発明による他の熱交換装置では、外皮がその熱膨張によって変形しようとすると、継ぎ目の両縁部がオーバーラップさせられることにより、外皮がその半径方向には変形させられることなく、その周方向に変形させられ、その変形はアンカに伝達されず、内壁に引張応力が作用させられることがない。したがって、外皮の変形によって、内壁にクラックが発生することを防止できる。   In another heat exchanging device according to the second invention, when the outer skin is deformed by its thermal expansion, both edges of the seam are overlapped, so that the outer skin is not deformed in the radial direction. It is deformed in the circumferential direction, the deformation is not transmitted to the anchor, and no tensile stress is applied to the inner wall. Therefore, it is possible to prevent the inner wall from cracking due to the deformation of the outer skin.

さらに、この第２発明による他の熱交換装置において、アンカの外端部から下向きに係合ロッドがのびており、係合ロッドは、支持枠に通されており、支持枠は、内壁に埋設されかつ係合ロッドの外皮周方向の移動を自由とするように係合ロッドを外皮半径方向から挟んでいる内枠部材および外枠部材と、内枠部材および外枠部材の対応する端部同士を連絡しかつ外皮の熱膨張による外皮周方向の変形量より大きい間隔をおいて外皮周方向に相対させられた一対の側枠部材とよりなり、内枠部材にアンカが載置されており、外枠部材は、外皮内面に固定されていると、支持枠だけのシンプルな構造によって、外皮に対しアンカを外皮周方向の変形を自由に支持することができる。   Furthermore, in another heat exchanging device according to the second invention, an engagement rod extends downward from the outer end of the anchor, the engagement rod is passed through the support frame, and the support frame is embedded in the inner wall. In addition, the inner frame member and the outer frame member sandwiching the engagement rod from the outer skin radial direction so as to freely move the engagement rod in the outer skin circumferential direction, and corresponding ends of the inner frame member and the outer frame member And a pair of side frame members opposed to each other in the outer skin circumferential direction with a larger interval than the deformation amount in the outer skin circumferential direction due to thermal expansion of the outer skin, and an anchor is mounted on the inner frame member, When the frame member is fixed to the inner surface of the outer skin, it is possible to freely support the deformation of the anchor in the outer circumferential direction with respect to the outer skin by a simple structure including only the support frame.

この発明によれば、外皮の熱膨張によって、内壁にクラックが発生することを防止することができる熱交換装置が提供される。   According to this invention, the heat exchange apparatus which can prevent that a crack generate | occur | produces in an inner wall by the thermal expansion of an outer skin is provided.

この発明による熱交換装置の斜視図である。It is a perspective view of the heat exchange apparatus by this invention. 同熱交換装置の内筒の垂直縦断面図である。It is a vertical longitudinal cross-sectional view of the inner cylinder of the heat exchange device. 図２に示す内筒冷間時の横断面図である。FIG. 3 is a transverse cross-sectional view when the inner cylinder shown in FIG. 2 is cold. 図３のA−A線に沿う断面図である。It is sectional drawing which follows the AA line of FIG. 図２に示す内筒熱間時の横断面図である。FIG. 3 is a transverse sectional view when the inner cylinder shown in FIG. 2 is hot. 図５のB−B線に沿う断面図である。It is sectional drawing which follows the BB line of FIG. 変形例による内筒の要部を示す横断面図である。It is a cross-sectional view which shows the principal part of the inner cylinder by a modification. 図７に示す内筒冷間時の横断面図である。FIG. 8 is a transverse cross-sectional view when the inner cylinder shown in FIG. 7 is cold. 図８のC−C線に沿う断面図である。It is sectional drawing which follows the CC line of FIG.

図１を参照すると、外筒11および内筒12は、同心状かつ半径方向に間隔をおいて配置されている。外筒11および内筒12間に低温ガス通路Lが、内筒12内に高温ガス通路Hがそれぞれ形成されている。   Referring to FIG. 1, the outer cylinder 11 and the inner cylinder 12 are disposed concentrically and spaced apart in the radial direction. A low temperature gas passage L is formed between the outer cylinder 11 and the inner cylinder 12, and a high temperature gas passage H is formed in the inner cylinder 12, respectively.

図２に、外筒11を省略して、内筒12のみが示されている。内筒12は、金属製垂直状外皮21と、外皮21内面に被覆されている耐火材製内壁22とよりなる。外皮21の熱膨張率は、内壁22のそれよりも大である。   In FIG. 2, the outer cylinder 11 is omitted and only the inner cylinder 12 is shown. The inner cylinder 12 includes a metal vertical outer skin 21 and a refractory inner wall 22 covered on the inner surface of the outer skin 21. The thermal expansion coefficient of the outer skin 21 is larger than that of the inner wall 22.

外皮21の上端は、定位置23にハンガ24によって吊下げられている。外皮21の下端は、エクスパンション25によって伸縮自在に受けられている。エクスパンション25は、蛇腹筒状伸縮部材26の内側にセラミックウール27を充填したものである。   The upper end of the outer skin 21 is suspended by a hanger 24 at a fixed position 23. The lower end of the outer skin 21 is elastically received by the expansion 25. The expansion 25 is obtained by filling ceramic wool 27 inside the bellows-tube-shaped elastic member 26.

内壁22の高さ方向に所定間隔で設けられる複数カ所の円周上には、各円周毎に、複数のアンカ31が埋設されている。各アンカ31には支持枠32が備えられている。   A plurality of anchors 31 are embedded for each circumference on a plurality of circumferences provided at predetermined intervals in the height direction of the inner wall 22. Each anchor 31 is provided with a support frame 32.

図３および図４に、アンカ31および支持枠32周辺部の冷間時の状態が、図５および図６に、その熱間時の状態がそれぞれ詳細に示されている。   3 and 4 show the state of the anchor 31 and the periphery of the support frame 32 in the cold state, and FIGS. 5 and 6 show the state in the hot state in detail.

アンカ31は、外端部41から内壁22半径方向中心にむかって水平面内においてＹ字をなして拡がるアンカ本体42と、内壁22外面にそって外端部41から垂下させられている係合ロッド43とよりなる。   The anchor 31 includes an anchor main body 42 extending in a Y-shape in a horizontal plane from the outer end 41 toward the inner wall 22 in the radial direction, and an engagement rod suspended from the outer end 41 along the outer surface of the inner wall 22. It consists of 43.

支持枠32は、内壁22外面におけるアンカ本体42の下方に形成された半径方向凹所44に対し出没自在に収容されかつ係合ロッド43が通された水平方形枠状のものであって、内壁22半径方向に間隔をおいて相対させられている内枠部材51および外枠部材52と、内枠部材51および外枠部材52の対応する端部同士を連絡している一対の側枠部材53、54とよりなる。外枠部材52は、外皮21内面に溶接により固定されている。   The support frame 32 is in the form of a horizontal rectangular frame that is retractably accommodated in a radial recess 44 formed on the outer surface of the inner wall 22 below the anchor body 42 and through which the engagement rod 43 is passed. 22 Inner frame member 51 and outer frame member 52 that are opposed to each other with a gap in the radial direction, and a pair of side frame members 53 that connect corresponding ends of inner frame member 51 and outer frame member 52 , 54 and so on. The outer frame member 52 is fixed to the inner surface of the outer skin 21 by welding.

冷間時において、外皮21内面および内壁22外面は、ほぼ接触させられている。支持枠32のほぼ全体は、凹所44に収容されている。アンカ本体42は、内枠部材51に載置されている。係合ロッド43は、内枠部材51および外枠部材52の長さの中程のところにおいて外枠部材52寄りのところを高さ方向の下方へのびている。   When cold, the inner surface of the outer skin 21 and the outer surface of the inner wall 22 are substantially in contact with each other. Almost the entire support frame 32 is accommodated in the recess 44. The anchor main body 42 is placed on the inner frame member 51. The engaging rod 43 extends downward in the height direction near the outer frame member 52 in the middle of the length of the inner frame member 51 and the outer frame member 52.

熱間時において、外皮21は、その半径方向外向きに膨張させられるが、これよりも内壁22の膨張は小である。その膨張量の差だけ、外皮21および内壁22間には隙間が形成される。外皮21の膨張にともなって、外皮21とともに支持枠32は外皮21半径方向外向きに移動させられる。その結果、凹所44から支持枠32が引き出されて、アンカ本体42が内枠部材51上を滑りながら、係合ロッド43は、内枠部材51寄りのところまで相対的に移動させられる。内枠部材51および外枠部材52の間隔は、外皮21熱膨張による外皮21半径方向の変形量以上でなければならない。凹所44から支持枠32が引き出された状態で、支持枠32にアンカ31を介して内壁22が支持されることになるが、外皮21の熱膨張にともなう引張応力は内壁22に作用させられることは無い。   When hot, the outer skin 21 is expanded outward in the radial direction, but the expansion of the inner wall 22 is smaller than this. A gap is formed between the outer skin 21 and the inner wall 22 by the difference in expansion amount. As the outer skin 21 expands, the support frame 32 is moved together with the outer skin 21 outward in the radial direction of the outer skin 21. As a result, the support frame 32 is pulled out from the recess 44, and the engagement rod 43 is relatively moved to a position near the inner frame member 51 while the anchor body 42 slides on the inner frame member 51. The distance between the inner frame member 51 and the outer frame member 52 must be equal to or greater than the deformation amount in the radial direction of the outer skin 21 due to the thermal expansion of the outer skin 21. While the support frame 32 is pulled out from the recess 44, the inner wall 22 is supported by the support frame 32 via the anchor 31, but the tensile stress accompanying the thermal expansion of the outer skin 21 is applied to the inner wall 22. There is nothing.

一方、外皮21の熱膨張により、外皮21は、その軸方向に伸張させられるが、これは、エクスパンション25によって吸収される。   On the other hand, the outer skin 21 is expanded in the axial direction by the thermal expansion of the outer skin 21, but this is absorbed by the expansion 25.

図７〜図９に、他の実施の形態が示されている。図７に、内筒12の外皮21の一部のみが示されている。外皮21の周方向の一部には、外皮21軸方向にのびた縦方向継ぎ目61が形成されている。継ぎ目61の一方の縁部には継ぎ目部材62が設けられている。継ぎ目部材62は、継ぎ目61の他方の縁部を外皮21周方向および軸方向に摺動自在にはめ入れた横断面輪郭コ字状シール溝63を有している。   7 to 9 show another embodiment. FIG. 7 shows only a part of the outer skin 21 of the inner cylinder 12. A longitudinal seam 61 extending in the axial direction of the outer skin 21 is formed in a part of the outer skin 21 in the circumferential direction. A seam member 62 is provided on one edge of the seam 61. The seam member 62 has a cross-sectional contour U-shaped seal groove 63 in which the other edge of the seam 61 is slidably fitted in the outer skin 21 circumferential direction and the axial direction.

この実施の形態では、図８および図９に示すアンカ71および支持枠72が用いられれている。   In this embodiment, an anchor 71 and a support frame 72 shown in FIGS. 8 and 9 are used.

アンカ71は、外端部81から内壁22半径方向中心にむかって水平面内においてＶ字をなして拡がるアンカ本体82と、内壁22外面にそって外端部81から垂下させられている係合ロッド83とよりなる。この変形例においては、上記半径方向凹所44に代わり、支持枠72を収納した凹所84が内壁22に形成されている。   The anchor 71 includes an anchor main body 82 extending in a V shape in the horizontal plane from the outer end portion 81 toward the center in the radial direction of the inner wall 22, and an engagement rod suspended from the outer end portion 81 along the outer surface of the inner wall 22. It consists of 83. In this modification, instead of the radial recess 44, a recess 84 that houses the support frame 72 is formed in the inner wall 22.

支持枠72は、上記の実施の形態と同様に、内枠部材91、外枠部材92および一対の側枠部材93、94よりなる。内枠部材91は、アンカ本体82を支持している。外枠部材92は、外皮21内面に固定されている。内枠部材91および外枠部材92の間隔は、係合ロッド83を緩く挟んでその相対移動を許す程度でよい。両側枠部材93、94の間隔は、外皮21の熱膨張による外皮21周方向の変形量より大きく設定されている。   The support frame 72 includes an inner frame member 91, an outer frame member 92, and a pair of side frame members 93 and 94, as in the above embodiment. The inner frame member 91 supports the anchor main body 82. The outer frame member 92 is fixed to the inner surface of the outer skin 21. The distance between the inner frame member 91 and the outer frame member 92 may be such that the engagement rod 83 is loosely clamped and the relative movement thereof is allowed. The distance between the side frame members 93 and 94 is set larger than the deformation amount in the circumferential direction of the outer skin 21 due to the thermal expansion of the outer skin 21.

外皮21が熱膨張すると、継ぎ目61の間隔が大小に変化して、外皮21は、周方向には変形するが、その半径方向には変形させられない。外皮21の周方向の変形により、外皮21および内壁22は周方向に相互に相対的に移動させられる。この移動にともない、係合ロッド83は、支持枠72内を相対的に移動させられることにより、アンカ71を介して内壁22に外力が作用させられることはない。内壁22は半径方向外向きに小さく膨張させられるが、耐火材のクラック防止のために、内壁22の膨張により内壁22外面が外皮21の内面に押し付けることのないように、予め設計されている。冷間時には内壁22外面と外皮21内面の間に隙間があってもよい。   When the outer skin 21 is thermally expanded, the interval between the seams 61 is changed to be larger and smaller, and the outer skin 21 is deformed in the circumferential direction but cannot be deformed in the radial direction. Due to the circumferential deformation of the outer skin 21, the outer skin 21 and the inner wall 22 are moved relative to each other in the circumferential direction. Along with this movement, the engaging rod 83 is relatively moved in the support frame 72, so that no external force is applied to the inner wall 22 via the anchor 71. The inner wall 22 is inflated small outward in the radial direction, but is designed in advance so that the outer surface of the inner wall 22 is not pressed against the inner surface of the outer skin 21 due to expansion of the inner wall 22 in order to prevent cracking of the refractory material. There may be a gap between the outer surface of the inner wall 22 and the inner surface of the outer skin 21 when cold.

上記の２つの実施の形態において、Ｙ字状アンカ本体42またはＶ字状アンカ本体82を有するアンカ31、71のいずれを用いても良い。さらに、施工時において、アンカ31、71および支持枠32、72にワックスを被覆したり、支持枠32、72内にワックスを充填しておいて、ワックスを燃焼もしくは気化させて消失させるようにすれば、支持枠32、72を収容するための凹所44、84を簡単に形成することができる。   In the above two embodiments, any of the anchors 31 and 71 having the Y-shaped anchor body 42 or the V-shaped anchor body 82 may be used. In addition, during construction, the anchors 31, 71 and the support frames 32, 72 are covered with wax, or the support frames 32, 72 are filled with wax so that the wax is burned or vaporized to disappear. In this case, the recesses 44 and 84 for accommodating the support frames 32 and 72 can be easily formed.

この発明による熱交換装置は、都市ごみ焼却炉や産業廃棄物焼却炉における廃棄物の焼却処理および焼却炉から排出される灰を溶融処理する過程で発生する高温の燃焼ガス（排ガス）の熱エネルギーを空気と熱交換することにより回収し、熱エネルギーの有効利用を図ることを達成するのに適している。   The heat exchange apparatus according to the present invention is a thermal energy of high-temperature combustion gas (exhaust gas) generated in the process of incineration of waste in municipal waste incinerators and industrial waste incinerators and in the process of melting ash discharged from the incinerator. Is recovered by exchanging heat with air to achieve effective use of heat energy.

11 外筒
12 内筒
21 外皮
22 内壁
31 アンカ
41 アンカ外端部
L 低温ガス通路
H 高温ガス通路
11 outer cylinder
12 inner cylinder
21 hull
22 inner wall
31 Anka
41 Anchor outer edge
L Low temperature gas passage
H Hot gas passage

Claims (2)

外筒および内筒が、同心状かつ半径方向に間隔をおいて配置されており、外筒および内筒間に低温ガス通路が、内筒内に高温ガス通路がそれぞれ形成されており、内筒は、金属製外皮と、外皮内面に被覆されている耐火材製内壁とよりなり、外皮は、外皮軸方向にのびた継ぎ目を有しており、継ぎ目の両縁部は、外皮の熱膨張による外皮周方向の変形量以上の幅でオーバーラップしうるように構成されており、内壁にアンカが埋設されており、アンカは、外皮の熱膨張による外皮周方向の変形を自由とするように外皮内面に支持されている外端部を有している熱交換装置。   The outer cylinder and the inner cylinder are arranged concentrically and spaced apart in the radial direction, a low temperature gas passage is formed between the outer cylinder and the inner cylinder, and a high temperature gas passage is formed in the inner cylinder. Consists of a metal skin and an inner wall made of a refractory material coated on the inner surface of the outer skin. The outer skin has a seam extending in the direction of the outer skin axis, and both edges of the seam are the outer skin due to thermal expansion of the outer skin. It is configured so that it can overlap with a width equal to or greater than the amount of deformation in the circumferential direction, and an anchor is embedded in the inner wall, and the anchor has an inner surface that is free from deformation in the circumferential direction due to thermal expansion of the outer skin. A heat exchanging device having an outer end supported by the heat exchanger. アンカの外端部から下向きに係合ロッドがのびており、係合ロッドは、支持枠に通されており、支持枠は、内壁に埋設されかつ係合ロッドの外皮周方向の移動を自由とするように係合ロッドを外皮半径方向から挟んでいる内枠部材および外枠部材と、内枠部材および外枠部材の対応する端部同士を連絡しかつ外皮の熱膨張による外皮周方向の変形量より大きい間隔をおいて外皮周方向に相対させられた一対の側枠部材とよりなり、内枠部材にアンカが載置されており、外枠部材は、外皮内面に固定されている請求項１に記載の熱交換装置。
An engagement rod extends downward from the outer end of the anchor, and the engagement rod is passed through the support frame. The support frame is embedded in the inner wall and allows the engagement rod to freely move in the outer skin circumferential direction. The inner frame member and the outer frame member sandwiching the engaging rod from the outer skin radial direction, the corresponding ends of the inner frame member and the outer frame member are connected to each other, and the deformation amount in the outer skin circumferential direction due to the thermal expansion of the outer skin 2. A pair of side frame members that are opposed to each other in the outer circumferential direction at a larger interval, an anchor is placed on the inner frame member, and the outer frame member is fixed to the inner surface of the outer skin. The heat exchange apparatus as described in.
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5151682U (en) * 1974-10-18 1976-04-20
JPS5295937U (en) * 1976-01-16 1977-07-18
JPS5250431Y2 (en) * 1972-08-21 1977-11-16
JPS5611730B2 (en) * 1972-07-19 1981-03-17
JPH0718958Y2 (en) * 1989-06-28 1995-05-01 京セラ株式会社 Cylindrical ceramic lining structure
JPH1054530A (en) * 1996-08-10 1998-02-24 Mitsui Eng & Shipbuild Co Ltd Path wall structure of heat exchanger and manufacture of path wall
JP2005069575A (en) * 2003-08-25 2005-03-17 Takuma Co Ltd Heat exchanger
US20060242914A1 (en) * 2005-04-29 2006-11-02 Harbison-Walker Refractories Company Refractory block and refractory wall assembly

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5611730B2 (en) * 1972-07-19 1981-03-17
JPS5250431Y2 (en) * 1972-08-21 1977-11-16
JPS5151682U (en) * 1974-10-18 1976-04-20
JPS5295937U (en) * 1976-01-16 1977-07-18
JPH0718958Y2 (en) * 1989-06-28 1995-05-01 京セラ株式会社 Cylindrical ceramic lining structure
JPH1054530A (en) * 1996-08-10 1998-02-24 Mitsui Eng & Shipbuild Co Ltd Path wall structure of heat exchanger and manufacture of path wall
JP2005069575A (en) * 2003-08-25 2005-03-17 Takuma Co Ltd Heat exchanger
US20060242914A1 (en) * 2005-04-29 2006-11-02 Harbison-Walker Refractories Company Refractory block and refractory wall assembly

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