JP2015094559A - Heat transfer tube support structure and exhaust heat recovery boiler - Google Patents

Heat transfer tube support structure and exhaust heat recovery boiler Download PDF

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JP2015094559A
JP2015094559A JP2013235262A JP2013235262A JP2015094559A JP 2015094559 A JP2015094559 A JP 2015094559A JP 2013235262 A JP2013235262 A JP 2013235262A JP 2013235262 A JP2013235262 A JP 2013235262A JP 2015094559 A JP2015094559 A JP 2015094559A
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heat transfer
transfer tube
support plate
vibration
support structure
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JP6407518B2 (en
JP2015094559A5 (en
Inventor
貴寛 沖本
Takahiro Okimoto
貴寛 沖本
直樹 菅沼
Naoki Suganuma
直樹 菅沼
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Mitsubishi Power Ltd
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Mitsubishi Hitachi Power Systems Ltd
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Priority to JP2013235262A priority Critical patent/JP6407518B2/en
Application filed by Mitsubishi Hitachi Power Systems Ltd filed Critical Mitsubishi Hitachi Power Systems Ltd
Priority to KR1020167010844A priority patent/KR20160064162A/en
Priority to MX2016005164A priority patent/MX2016005164A/en
Priority to PCT/JP2014/071226 priority patent/WO2015072190A1/en
Priority to CN201480057696.XA priority patent/CN105659049A/en
Priority to US15/031,364 priority patent/US20160281976A1/en
Publication of JP2015094559A publication Critical patent/JP2015094559A/en
Publication of JP2015094559A5 publication Critical patent/JP2015094559A5/ja
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/10—Water tubes; Accessories therefor
    • F22B37/20—Supporting arrangements, e.g. for securing water-tube sets
    • F22B37/204—Supporting arrangements for individual tubes, e.g. for securing tubes to a refractory wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/10—Water tubes; Accessories therefor
    • F22B37/20—Supporting arrangements, e.g. for securing water-tube sets
    • 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
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • 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
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • F28F9/0131—Auxiliary supports for elements for tubes or tube-assemblies formed by plates
    • 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
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • F28F9/0138—Auxiliary supports for elements for tubes or tube-assemblies formed by sleeves for finned tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/30—Safety or protection arrangements; Arrangements for preventing malfunction for preventing vibrations

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Supports For Pipes And Cables (AREA)

Abstract

PROBLEM TO BE SOLVED: To reduce wear of a heat transfer tube.SOLUTION: A heat-transfer-tube support structure includes: a heat-transfer-tube support plate 2 in which a through-hole 6-(i,j) is formed; a heat transfer tube 3-(i,j) inserted into the through-hole 6-(i,j); and an elastic suspension 5-j. An edge of the elastic suspension 5-j is bonded to the heat-transfer-tube support plate 2 so as to interpose the heat transfer tube 3-(i,j) between an edge of the through-hole 6-(i,j) and the elastic suspension 5-j. The heat-transfer-tube support structure configured in this way can reduce a clearance between the edge of the through-hole 6-(i,j) and the heat transfer tube 3-(i,j) and reduce vibration of the heat transfer tube 3-(i,j) by interposing the heat transfer tube 3-(i,j) between the edge of the through-hole 6-(i,j) and the elastic suspension 5-j. Reduction in the vibration of the heat transfer tube 3-(i,j) can reduce sliding of the heat transfer tube 3-(i,j) relative to the edge of the through-hole 6-(i,j) and reduce wear of the heat transfer tube 3-(i,j).

Description

本発明は、伝熱管支持構造物および排熱回収ボイラに関し、特に、排熱を回収するときに利用される伝熱管支持構造物および排熱回収ボイラに関する。   The present invention relates to a heat transfer tube support structure and an exhaust heat recovery boiler, and more particularly to a heat transfer tube support structure and an exhaust heat recovery boiler used when recovering exhaust heat.

高温の排ガスから排熱を回収する排熱回収ボイラが知られている。このような排熱回収ボイラは、煙道に複数の伝熱管が設けられている。そして、排熱回収ボイラは、煙道に高温の排ガスを流し、複数の伝熱管に水を流すことにより、排ガスの熱を水に伝熱させる。複数の伝熱管は、伝熱管支持板に形成される複数の貫通孔に挿入されることにより、煙道に支持されている（特許文献１参照。）。   An exhaust heat recovery boiler that recovers exhaust heat from high temperature exhaust gas is known. Such an exhaust heat recovery boiler is provided with a plurality of heat transfer tubes in a flue. Then, the exhaust heat recovery boiler causes high-temperature exhaust gas to flow through the flue and causes water to flow through the plurality of heat transfer tubes, thereby transferring the heat of the exhaust gas to water. The plurality of heat transfer tubes are supported by the flue by being inserted into the plurality of through holes formed in the heat transfer tube support plate (see Patent Document 1).

特開２００２−２９５９８９号公報JP 2002-295989 A

複数の伝熱管は、煙道を流れる排ガスの流速が大きいときに、振動することがある。複数の伝熱管は、振動することにより、伝熱管支持板に接触している部分が摩耗することがある。複数の伝熱管を適切に支持することが望まれ、複数の伝熱管の摩耗を低減することが望まれている。   The plurality of heat transfer tubes may vibrate when the flow rate of the exhaust gas flowing through the flue is large. When the plurality of heat transfer tubes vibrate, a portion in contact with the heat transfer tube support plate may be worn. It is desired to appropriately support a plurality of heat transfer tubes, and to reduce wear of the plurality of heat transfer tubes.

本発明の課題は、伝熱管を適切に支持する伝熱管支持構造物および排熱回収ボイラを提供することにある。
本発明の他の課題は、伝熱管の摩耗を低減する伝熱管支持構造物および排熱回収ボイラを提供することにある。
本発明のさらに他の課題は、伝熱管の振動を抑制する伝熱管支持構造物および排熱回収ボイラを提供することにある。 An object of the present invention is to provide a heat transfer tube support structure and an exhaust heat recovery boiler that appropriately support a heat transfer tube.
Another object of the present invention is to provide a heat transfer tube support structure and an exhaust heat recovery boiler that reduce wear of the heat transfer tubes.
Still another object of the present invention is to provide a heat transfer tube support structure and an exhaust heat recovery boiler that suppress vibration of the heat transfer tube.

本発明による伝熱管支持構造物は、貫通孔が形成される伝熱管支持板と、前記貫通孔に挿入される伝熱管と、前記伝熱管支持板に接合される防振支持板とを備えている。前記防振支持板は、前記貫通孔の縁と前記防振支持板との間に前記伝熱管が挟まれるように、前記防振支持板の縁が前記伝熱管支持板の表面に接合されている。   A heat transfer tube support structure according to the present invention includes a heat transfer tube support plate in which a through hole is formed, a heat transfer tube inserted into the through hole, and a vibration isolation support plate joined to the heat transfer tube support plate. Yes. The anti-vibration support plate has an edge of the anti-vibration support plate joined to a surface of the heat transfer tube support plate so that the heat transfer tube is sandwiched between an edge of the through hole and the anti-vibration support plate. Yes.

このような伝熱管支持構造物は、貫通孔の縁と防振支持板との間に伝熱管が挟まれることにより、貫通孔の縁と伝熱管との間のクリアランスが低減され、伝熱管が振動することを低減することができる。伝熱管は、振動が低減されることにより、貫通孔の縁との摺動が低減され、摺動の低減に伴い磨耗が低減される。   In such a heat transfer tube support structure, the clearance between the edge of the through hole and the heat transfer tube is reduced by sandwiching the heat transfer tube between the edge of the through hole and the vibration isolation support plate. Vibration can be reduced. As the heat transfer tube is reduced in vibration, sliding with the edge of the through hole is reduced, and wear is reduced as the sliding is reduced.

前記防振支持板は、前記防振支持板のうちの前記伝熱管に接触する接触面の曲率が、前記伝熱管の外側面の曲率に等しくなるように、形成されている。   The anti-vibration support plate is formed such that the curvature of the contact surface of the anti-vibration support plate that contacts the heat transfer tube is equal to the curvature of the outer surface of the heat transfer tube.

このような伝熱管支持構造物は、防振支持板の接触面の曲率が伝熱管の外側面の曲率に等しいことにより、防振支持板が伝熱管を押さえる接触面圧を低減することができ、伝熱管が貫通孔の縁と摺動することを適切に低減することができる。さらに防振支持板に曲率を与えることにより、熱伸び等により貫通孔の縁と防振支持板の距離が伸びた際に、平板に比べ伝熱管と貫通孔とのクリアランスの増加量を低減することができる。   In such a heat transfer tube support structure, the curvature of the contact surface of the vibration isolation support plate is equal to the curvature of the outer surface of the heat transfer tube, so that the contact surface pressure at which the vibration isolation support plate presses the heat transfer tube can be reduced. The sliding of the heat transfer tube with the edge of the through hole can be appropriately reduced. Furthermore, by giving curvature to the anti-vibration support plate, when the distance between the edge of the through hole and the anti-vibration support plate is extended due to thermal elongation, etc., the amount of increase in the clearance between the heat transfer tube and the through hole is reduced compared to the flat plate be able to.

前記伝熱管は、管と、前記管の外側に接合されたフィンとを備えている。前記防振支持板は、前記フィンに接触することにより、前記伝熱管を支持している。   The heat transfer tube includes a tube and a fin joined to the outside of the tube. The anti-vibration support plate supports the heat transfer tube by contacting the fins.

このような伝熱管支持構造物は、防振支持板がフィンに接触することにより伝熱管を支持することにより、フィンが貫通孔の縁と摺動することが低減されることができ、フィンの摩耗を低減することができる。すなわち、このような伝熱管支持構造物は、フィン付きの伝熱管を適切に支持することができる。   Such a heat transfer tube support structure can reduce the sliding of the fin with the edge of the through-hole by supporting the heat transfer tube by the vibration-proof support plate contacting the fin. Wear can be reduced. That is, such a heat transfer tube support structure can appropriately support the heat transfer tubes with fins.

本発明による伝熱管支持構造物は、他の伝熱管をさらに備えている。前記伝熱管支持板は、他の貫通孔がさらに形成されている。前記防振支持板は、さらに、前記他の貫通孔の縁と前記防振支持板との間に前記他の伝熱管が挟まれるように、配置されている。   The heat transfer tube support structure according to the present invention further includes another heat transfer tube. The heat transfer tube support plate is further formed with other through holes. The vibration-proof support plate is further arranged so that the other heat transfer tube is sandwiched between an edge of the other through hole and the vibration-proof support plate.

すなわち、防振支持板は、複数の伝熱管の振動を低減するように、設けられている。このような伝熱管支持構造物は、複数の伝熱管ごとに複数の防振支持板が設けられる他の伝熱管支持構造物に比較して、より容易に作製されることができる。   That is, the vibration isolating support plate is provided so as to reduce the vibration of the plurality of heat transfer tubes. Such a heat transfer tube support structure can be manufactured more easily than other heat transfer tube support structures in which a plurality of vibration-proof support plates are provided for each of the plurality of heat transfer tubes.

本発明による排熱回収ボイラは、本発明による伝熱管支持構造物と、排ガスが流れる流路を形成する煙道とを備え、前記伝熱管は、前記流路に配置されている。   The exhaust heat recovery boiler according to the present invention includes the heat transfer tube support structure according to the present invention and a flue that forms a flow path through which the exhaust gas flows, and the heat transfer pipe is disposed in the flow path.

このような排熱回収ボイラは、伝熱管支持構造物が伝熱管を適切に支持することにより、排ガスの流れによる熱管の振動を防止しつつ、排ガスから排熱を適切に回収することができる。   In such an exhaust heat recovery boiler, the heat transfer tube support structure appropriately supports the heat transfer tube, whereby the exhaust heat can be appropriately recovered from the exhaust gas while preventing the vibration of the heat tube due to the flow of the exhaust gas.

本発明による伝熱管支持構造物および排熱回収ボイラは、貫通孔の縁と防振支持板との間に伝熱管を挟むことにより、伝熱管の摩耗が低減されるように、伝熱管を適切に支持することができる。   The heat transfer tube support structure and the exhaust heat recovery boiler according to the present invention are suitable for the heat transfer tube so that the wear of the heat transfer tube is reduced by sandwiching the heat transfer tube between the edge of the through hole and the vibration-proof support plate. Can be supported.

排熱回収ボイラが備える伝熱管支持構造物を示す図である。It is a figure which shows the heat exchanger tube support structure with which an exhaust heat recovery boiler is provided. 防振支持板を示す斜視図である。It is a perspective view which shows a vibration isolating support plate. 伝熱管支持構造物を示す拡大図である。It is an enlarged view which shows a heat exchanger tube support structure. 伝熱管支持構造物を示す断面図である。It is sectional drawing which shows a heat exchanger tube support structure.

図面を参照して、伝熱管支持構造物の実施の形態が以下に記載される。伝熱管支持構造物１は、図１に示されているように、伝熱管支持板２と複数の伝熱管３−（１，１）〜３−（ｍ，ｎ）（ｍ＝２，３，４，…、ｎ＝２，３，４，…）と複数の防振支持板５−１〜５−ｎとを備えている。伝熱管支持板２は、板状に形成されている。伝熱管支持板２は、鉛直方向に概ね平行である平面に沿って配置されるように、煙道に支持されている。   An embodiment of a heat transfer tube support structure will be described below with reference to the drawings. As shown in FIG. 1, the heat transfer tube support structure 1 includes a heat transfer tube support plate 2 and a plurality of heat transfer tubes 3- (1,1) to 3- (m, n) (m = 2, 3, 4,..., N = 2, 3, 4,...) And a plurality of anti-vibration support plates 5-1 to 5-n. The heat transfer tube support plate 2 is formed in a plate shape. The heat transfer tube support plate 2 is supported by the flue so as to be disposed along a plane substantially parallel to the vertical direction.

伝熱管支持板２は、複数の貫通孔６−（１，１）〜６−（ｍ，ｎ）が形成されている。複数の貫通孔６−（１，１）〜６−（ｍ，ｎ）は、格子状に並んで配置されている。すなわち、複数の貫通孔６−（１，１）〜６−（ｍ，ｎ）は、複数の平行線のいずれかに重なり、複数の平行線の任意の直線は、複数の貫通孔６−（１，１）〜６−（ｍ，ｎ）のうちの複数の貫通孔６−（１，ｊ）〜６−（ｍ，ｊ）に重なっている。さらに、複数の貫通孔６−（１，１）〜６−（ｍ，ｎ）は、複数の伝熱管３−（１，１）〜３−（ｍ，ｎ）に対応している。   The heat transfer tube support plate 2 is formed with a plurality of through holes 6- (1, 1) to 6- (m, n). The plurality of through holes 6- (1, 1) to 6- (m, n) are arranged in a lattice pattern. That is, the plurality of through holes 6- (1, 1) to 6- (m, n) overlap any one of the plurality of parallel lines, and an arbitrary straight line of the plurality of parallel lines is formed from the plurality of through holes 6- ( 1, 1) to 6- (m, n), and overlaps with a plurality of through holes 6- (1, j) to 6- (m, j). Further, the plurality of through holes 6- (1,1) to 6- (m, n) correspond to the plurality of heat transfer tubes 3- (1,1) to 3- (m, n).

複数の伝熱管３−（１，１）〜３−（ｍ，ｎ）は、それぞれ、円柱状に形成されている。複数の伝熱管３−（１，１）〜３−（ｍ，ｎ）は、それぞれ、伝熱管支持板２の法線方向に平行である直線に沿って配置され、すなわち、水平方向に平行である直線に沿って配置されている。複数の伝熱管３−（１，１）〜３−（ｍ，ｎ）のうちの任意の伝熱管３−（ｉ，ｊ）は、複数の貫通孔６−（１，１）〜６−（ｍ，ｎ）のうちの伝熱管３−（ｉ，ｊ）に対応する貫通孔６−（ｉ，ｊ）に挿入されることにより、伝熱管支持板２に支持されている。   The plurality of heat transfer tubes 3- (1, 1) to 3- (m, n) are each formed in a columnar shape. The plurality of heat transfer tubes 3- (1,1) to 3- (m, n) are respectively arranged along a straight line parallel to the normal direction of the heat transfer tube support plate 2, that is, parallel to the horizontal direction. It is arranged along a certain straight line. An arbitrary heat transfer tube 3- (i, j) among the plurality of heat transfer tubes 3- (1,1) to 3- (m, n) has a plurality of through holes 6- (1,1) to 6- ( m, n) is supported by the heat transfer tube support plate 2 by being inserted into the through holes 6- (i, j) corresponding to the heat transfer tubes 3- (i, j).

複数の防振支持板５−１〜５−ｎのうちの任意の防振支持板５−ｊ（ｊ＝１，２，３，…，ｎ）は、図２に示されているように、帯状に形成されている。防振支持板５−ｊは、屈曲され、複数の接触面７−１〜７−ｍが形成されている。複数の接触面７−１〜７−ｍのうちの任意の接触面７−ｉ（ｉ＝１，２，３，…，ｍ）は、円柱の側面に沿う凹面に形成されている。   As shown in FIG. 2, an arbitrary anti-vibration support plate 5-j (j = 1, 2, 3,..., N) among the plurality of anti-vibration support plates 5-1 to 5-n, It is formed in a band shape. The anti-vibration support plate 5-j is bent to form a plurality of contact surfaces 7-1 to 7-m. Arbitrary contact surfaces 7-i (i = 1, 2, 3,..., M) among the plurality of contact surfaces 7-1 to 7-m are formed as concave surfaces along the side surfaces of the cylinder.

防振支持板５−ｊは、図３に示されているように、接触面７−ｉが伝熱管３−（ｉ，ｊ）の外側面に接触するように配置され、溶接により伝熱管支持板２の一方の面に接合されている。   As shown in FIG. 3, the anti-vibration support plate 5-j is disposed so that the contact surface 7-i contacts the outer surface of the heat transfer tube 3- (i, j), and supports the heat transfer tube by welding. It is joined to one surface of the plate 2.

伝熱管３−（ｉ，ｊ）は、図４に示されているように、管１１とフィン１２とを備えている。管１１は、金属から形成され、管状に形成されている。管１１は、内部に流路１４を形成している。フィン１２は、帯状に形成されている金属板で形成されている。フィン１２は、管１１の外壁から外側に張り出すように、帯の一方の縁が管１１の外壁上の螺旋に沿って管１１に接合されている。伝熱管３−（ｉ，ｊ）は、フィン１２の管１１に接合されていない側の縁が円柱の側面に沿うように、形成されている。   The heat transfer tube 3- (i, j) includes a tube 11 and fins 12 as shown in FIG. The pipe | tube 11 is formed from the metal and is formed in the tubular shape. The tube 11 forms a flow path 14 therein. The fin 12 is formed of a metal plate formed in a band shape. One edge of the band is joined to the tube 11 along a spiral on the outer wall of the tube 11 so that the fin 12 projects outward from the outer wall of the tube 11. The heat transfer tubes 3- (i, j) are formed so that the edges of the fins 12 that are not joined to the tubes 11 are along the side surfaces of the cylinder.

このとき、防振支持板５−ｊは、伝熱管３−（ｉ，ｊ）に対応する接触面７−ｉの曲率が伝熱管３−（ｉ，ｊ）のフィン１２の外側の縁が沿う面の曲率に等しくなるように、形成されている。防振支持板５−ｊは、複数の接触面７−１〜７−ｍが複数の伝熱管３−（１，ｊ）〜３−（ｍ，ｊ）のフィン１２の外側の縁にそれぞれ接触するように配置され、伝熱管支持板２に接合されている。   At this time, in the vibration-proof support plate 5-j, the curvature of the contact surface 7-i corresponding to the heat transfer tube 3- (i, j) follows the outer edge of the fin 12 of the heat transfer tube 3- (i, j). It is formed so as to be equal to the curvature of the surface. In the vibration-proof support plate 5-j, the plurality of contact surfaces 7-1 to 7-m are in contact with the outer edges of the fins 12 of the plurality of heat transfer tubes 3- (1, j) to 3- (m, j), respectively. The heat transfer tube support plate 2 is joined to the heat transfer tube support plate 2.

伝熱管支持構造物１は、排熱回収ボイラに適用されている。排熱回収ボイラは、煙道を形成するダクトを備え、煙道に伝熱管支持構造物１が複数配置されている。排熱回収ボイラは、ボイラに例示される燃焼装置から排気される高温の排ガスを煙道に流し、複数の伝熱管３−（１，１）〜３−（ｍ，ｎ）の流路１４に水を流す。排ガスは、煙道を流れるときに、複数の伝熱管３−（１，１）〜３−（ｍ，ｎ）の近傍を流れる。   The heat transfer tube support structure 1 is applied to an exhaust heat recovery boiler. The exhaust heat recovery boiler includes a duct that forms a flue, and a plurality of heat transfer tube support structures 1 are arranged in the flue. The exhaust heat recovery boiler flows high-temperature exhaust gas exhausted from a combustion apparatus exemplified by a boiler through a flue, and flows into a plurality of heat transfer pipes 3- (1, 1) to 3- (m, n) flow paths 14. Run water. The exhaust gas flows in the vicinity of the plurality of heat transfer tubes 3- (1, 1) to 3- (m, n) when flowing through the flue.

排ガスは、複数の伝熱管３−（１，１）〜３−（ｍ，ｎ）の近傍を流れるときに、複数の伝熱管３−（１，１）〜３−（ｍ，ｎ）に接触することにより、複数の伝熱管３−（１，１）〜３−（ｍ，ｎ）を加熱し、複数の伝熱管３−（１，１）〜３−（ｍ，ｎ）により冷却される。このとき、排ガスから複数の伝熱管３−（１，１）〜３−（ｍ，ｎ）に伝熱された熱は、流路１４に流れる水に伝熱される。すなわち、複数の伝熱管３−（１，１）〜３−（ｍ，ｎ）は、排ガスに接触しているときに、排ガスの熱を流路１４に流れる水に伝熱することにより、水を加熱する。   When the exhaust gas flows in the vicinity of the plurality of heat transfer tubes 3- (1,1) to 3- (m, n), the exhaust gas contacts the plurality of heat transfer tubes 3- (1,1) to 3- (m, n). Thus, the plurality of heat transfer tubes 3- (1,1) to 3- (m, n) are heated and cooled by the plurality of heat transfer tubes 3- (1,1) to 3- (m, n). . At this time, the heat transferred from the exhaust gas to the plurality of heat transfer tubes 3- (1, 1) to 3- (m, n) is transferred to the water flowing in the flow path 14. That is, when the plurality of heat transfer tubes 3- (1,1) to 3- (m, n) are in contact with the exhaust gas, the heat of the exhaust gas is transferred to the water flowing in the flow path 14 to Heat.

伝熱管支持構造物１は、伝熱管３−（ｉ，ｊ）を防振支持板５−ｊと貫通孔６−（ｉ，ｊ）の縁との間に挟んで支持することにより、貫通孔６−（ｉ，ｊ）の縁と伝熱管３−（ｉ，ｊ）との間のクリアランスを低減することができる。複数の伝熱管３−（１，１）〜３−（ｍ，ｎ）は、特に排ガスが煙道を流れる流速が十分に速いときに、排ガスから力を受け、振動する。複数の伝熱管３−（１，１）〜３−（ｍ，ｎ）は、貫通孔６−（ｉ，ｊ）の縁と伝熱管３−（ｉ，ｊ）との間のクリアランスが低減されることにより、振動が低減される。すなわち、伝熱管支持構造物１は、複数の防振支持板５−１〜５−ｎを備えることにより、貫通孔６−（ｉ，ｊ）の縁と伝熱管３−（ｉ，ｊ）との間のクリアランスを低減し、伝熱管３−（ｉ，ｊ）の振動を低減することができる。伝熱管支持構造物１は、伝熱管３−（ｉ，ｊ）の振動を低減することにより、伝熱管３−（ｉ，ｊ）のフィン１２の外側が貫通孔６−（ｉ，ｊ）の縁と摺動することを低減し、伝熱管３−（ｉ，ｊ）のフィン１２が摩耗することを防止することができる。   The heat transfer tube support structure 1 supports the heat transfer tube 3- (i, j) by sandwiching it between the vibration-proof support plate 5-j and the edge of the through hole 6- (i, j). The clearance between the edge of 6- (i, j) and the heat transfer tube 3- (i, j) can be reduced. The plurality of heat transfer tubes 3- (1, 1) to 3- (m, n) receive a force from the exhaust gas and vibrate particularly when the flow rate of the exhaust gas flowing through the flue is sufficiently high. The clearance between the edge of the through hole 6- (i, j) and the heat transfer tube 3- (i, j) is reduced in the plurality of heat transfer tubes 3- (1,1) to 3- (m, n). Therefore, vibration is reduced. In other words, the heat transfer tube support structure 1 includes a plurality of vibration-proof support plates 5-1 to 5-n, so that the edge of the through hole 6- (i, j) and the heat transfer tube 3- (i, j) And the vibration of the heat transfer tube 3- (i, j) can be reduced. The heat transfer tube support structure 1 reduces the vibration of the heat transfer tube 3- (i, j) so that the outside of the fin 12 of the heat transfer tube 3- (i, j) is the through hole 6- (i, j). It can reduce sliding with an edge and can prevent that the fin 12 of the heat exchanger tube 3- (i, j) wears.

このとき、防振支持板５−ｊは、接触面７−ｉの曲率が伝熱管３−（ｉ，ｊ）の外側が沿う面の曲率に等しくなるように形成されていることにより、接触面７−ｉが伝熱管３−（ｉ，ｊ）の外側に密着することができる。伝熱管支持構造物１は、接触面７−ｉが伝熱管３−（ｉ，ｊ）の外側に密着することにより、伝熱管３−（ｉ，ｊ）の接触面７−ｉに接触する部分が受ける接触面圧を低減することができる。伝熱管支持構造物１は、接触面７−ｉが伝熱管３−（ｉ，ｊ）の外側に密着することにより、さらに、防振支持板５−ｊの長手方向に伝熱管３−（ｉ，ｊ）が振動しないように、伝熱管３−（ｉ，ｊ）を適切に支持することができる。   At this time, the vibration isolating support plate 5-j is formed so that the curvature of the contact surface 7-i is equal to the curvature of the surface along which the outer side of the heat transfer tube 3- (i, j) extends. 7-i can be in close contact with the outside of the heat transfer tube 3- (i, j). The heat transfer tube support structure 1 is a portion that contacts the contact surface 7-i of the heat transfer tube 3- (i, j) when the contact surface 7-i is in close contact with the outside of the heat transfer tube 3- (i, j). It is possible to reduce the contact surface pressure that is received. In the heat transfer tube support structure 1, the contact surface 7-i is in close contact with the outside of the heat transfer tube 3- (i, j), so that the heat transfer tube 3- (i , J) can be appropriately supported so that the heat transfer tubes 3- (i, j) do not vibrate.

また、防振支持板５−ｊの接触面７−ｉが伝熱管３−（ｉ，ｊ）の外側の面の曲率と等しい曲率を持つことにより、熱伸び等により微小に貫通孔６−（ｉ，ｊ）の縁と防振支持板５−ｊの距離が伸びた際に、防振支持板５−ｊの代わりに平板を用いて伝熱管３−（ｉ，ｊ）を支持することに比べ、伝熱管３−（ｉ，ｊ）と貫通孔６−（ｉ，ｊ）とのクリアランスの増加量を抑制することができ、伝熱管３−（ｉ，ｊ）の摺動を低減し、フィン１２の磨耗を低減することができる。   Further, since the contact surface 7-i of the vibration-proof support plate 5-j has a curvature equal to the curvature of the outer surface of the heat transfer tube 3- (i, j), the through-hole 6- ( When the distance between the edge of i, j) and the vibration-proof support plate 5-j is extended, the heat transfer tube 3- (i, j) is supported using a flat plate instead of the vibration-proof support plate 5-j. In comparison, the increase in the clearance between the heat transfer tube 3- (i, j) and the through hole 6- (i, j) can be suppressed, and the sliding of the heat transfer tube 3- (i, j) can be reduced. Wear of the fin 12 can be reduced.

複数の伝熱管３−（１，１）〜３−（ｍ，ｎ）は、格子状と異なる形状に配置されている他の複数の伝熱管に置換されることができる。複数の伝熱管としては、千鳥状に配置された複数の伝熱管が例示される。この場合も、複数の防振支持板５−１〜５−ｎは、貫通孔の縁と複数の伝熱管とのクリアランスを低減するように配置され、伝熱管支持板２に接合される。このような複数の伝熱管が適用された伝熱管支持構造物も、既述の実施の形態における伝熱管支持構造物１と同様にして、複数の伝熱管の振動を低減し、複数の伝熱管の摩耗を低減することができる。   The plurality of heat transfer tubes 3- (1,1) to 3- (m, n) can be replaced with other plurality of heat transfer tubes arranged in a shape different from the lattice shape. Examples of the plurality of heat transfer tubes include a plurality of heat transfer tubes arranged in a staggered pattern. Also in this case, the plurality of vibration-proof support plates 5-1 to 5-n are arranged so as to reduce the clearance between the edge of the through hole and the plurality of heat transfer tubes, and are joined to the heat transfer tube support plate 2. The heat transfer tube support structure to which such a plurality of heat transfer tubes are applied is similar to the heat transfer tube support structure 1 in the above-described embodiment, and the vibration of the plurality of heat transfer tubes is reduced. Wear can be reduced.

伝熱管支持構造物１は、伝熱管支持板２の複数の防振支持板５−１〜５−ｎが接合されている面の裏側の面に他の複数の防振支持板がさらに接合されることもできる。複数の防振支持板は、複数の防振支持板５−１〜５−ｎと同様にして、複数の貫通孔６−（１，１）〜６−（ｍ，ｎ）の縁と複数の伝熱管３−（１，１）〜３−（ｍ，ｎ）とのクリアランスを低減するように配置されている。このような複数の防振支持板をさらに備える伝熱管支持構造物も、既述の実施の形態における伝熱管支持構造物１と同様にして、複数の伝熱管３−（１，１）〜３−（ｍ，ｎ）の摩耗を低減することができる。さらに、このような複数の防振支持板をさらに備える伝熱管支持構造物は、既述の伝熱管支持構造物１に比較して、複数の伝熱管３−（１，１）〜３−（ｍ，ｎ）をより強固に支持することができ、複数の伝熱管３−（１，１）〜３−（ｍ，ｎ）の摩耗をより確実に低減することができる。   In the heat transfer tube support structure 1, another plurality of vibration isolation support plates are further bonded to the surface on the back side of the surface to which the plurality of vibration isolation support plates 5-1 to 5-n of the heat transfer tube support plate 2 are bonded. You can also. The plurality of anti-vibration support plates are similar to the plurality of anti-vibration support plates 5-1 to 5-n, and the edges of the plurality of through holes 6- (1, 1) to 6- (m, n) It arrange | positions so that the clearance with the heat exchanger tubes 3- (1,1) -3- (m, n) may be reduced. Similarly to the heat transfer tube support structure 1 in the above-described embodiment, the heat transfer tube support structure further including the plurality of vibration-proof support plates is also a plurality of heat transfer tubes 3- (1, 1) to 3. -(M, n) wear can be reduced. Furthermore, the heat transfer tube support structure further provided with such a plurality of vibration-proof support plates has a plurality of heat transfer tubes 3- (1, 1) to 3- (compared to the heat transfer tube support structure 1 described above. m, n) can be more firmly supported, and wear of the plurality of heat transfer tubes 3- (1, 1) to 3- (m, n) can be more reliably reduced.

なお、防振支持板５−ｊは、複数の伝熱管３−（１，ｊ）〜３−（ｍ，ｊ）に対応する他の複数の防振支持板に置換されることもできる。複数の防振支持板の伝熱管３−（ｉ，ｊ）に対応する防振支持板は、貫通孔６−（ｉ，ｊ）の縁と伝熱管３−（ｉ，ｊ）との間のクリアランスを低減するように、伝熱管支持板２に接合されている。このときも、伝熱管支持構造物は、複数の伝熱管３−（１，ｊ）〜３−（ｍ，ｊ）の振動を低減し、複数の伝熱管３−（１，ｊ）〜３−（ｍ，ｊ）の摩耗を低減することができる。   The anti-vibration support plate 5-j can be replaced with a plurality of other anti-vibration support plates corresponding to the plurality of heat transfer tubes 3- (1, j) to 3- (m, j). The anti-vibration support plate corresponding to the heat transfer tubes 3- (i, j) of the plurality of anti-vibration support plates is provided between the edge of the through hole 6- (i, j) and the heat transfer tubes 3- (i, j). It is joined to the heat transfer tube support plate 2 so as to reduce the clearance. Also at this time, the heat transfer tube support structure reduces the vibration of the plurality of heat transfer tubes 3- (1, j) to 3- (m, j), and the plurality of heat transfer tubes 3- (1, j) to 3- Wear of (m, j) can be reduced.

しかしながら、このような伝熱管支持構造物は、複数の伝熱管３−（１，ｊ）〜３−（ｍ，ｊ）と同数の複数の防振支持板を伝熱管支持板２に接合する必要がある。対して、既述の実施の形態における伝熱管支持構造物１は、伝熱管支持板２に接合される複数の防振支持板５−１〜５−ｎが複数の伝熱管３−（１，ｊ）〜３−（ｍ，ｊ）より少ないことにより、このような複数の防振支持板を備える伝熱管支持構造物に比較して、容易に作成されることができる。   However, such a heat transfer tube support structure requires joining the same number of vibration-proof support plates to the heat transfer tube support plate 2 as the heat transfer tubes 3- (1, j) to 3- (m, j). There is. On the other hand, in the heat transfer tube support structure 1 in the above-described embodiment, the plurality of anti-vibration support plates 5-1 to 5-n joined to the heat transfer tube support plate 2 include the plurality of heat transfer tubes 3- (1, By being less than j) to 3- (m, j), the heat transfer tube support structure including a plurality of such vibration-proof support plates can be easily created.

伝熱管３−（ｉ，ｊ）は、フィン１２が形成されていない他の伝熱管に置換されることもできる。このときも、伝熱管支持構造物は、伝熱管が貫通孔６−（ｉ，ｊ）の縁と摺動することを低減し、伝熱管が摩耗することを防止することができる。   The heat transfer tubes 3- (i, j) can be replaced with other heat transfer tubes in which the fins 12 are not formed. Also at this time, the heat transfer tube support structure can reduce the sliding of the heat transfer tube with the edge of the through-hole 6- (i, j) and can prevent the heat transfer tube from being worn.

１ ：伝熱管支持構造物
２ ：伝熱管支持板
３−（１，１）〜３−（ｍ，ｎ）：複数の伝熱管
５−１〜５−ｎ：複数の防振支持板
６−（１，１）〜６−（ｍ，ｎ）：複数の貫通孔
７−１〜７−ｍ：複数の接触面 1: Heat transfer tube support structure 2: Heat transfer tube support plate 3- (1,1) to 3- (m, n): Multiple heat transfer tubes 5-1 to 5-n: Multiple vibration-proof support plates 6- ( 1, 1) to 6- (m, n): a plurality of through holes 7-1 to 7-m: a plurality of contact surfaces

Claims (5)

貫通孔が形成される伝熱管支持板と、
前記貫通孔に挿入される伝熱管と、
前記伝熱管支持板に接合される防振支持板とを備え、
前記防振支持板は、前記貫通孔の縁と前記防振支持板との間に前記伝熱管が挟まれるように、前記防振支持板の縁が前記伝熱管支持板の表面に接合される伝熱管支持構造物。 A heat transfer tube support plate in which a through hole is formed;
A heat transfer tube inserted into the through hole;
An anti-vibration support plate joined to the heat transfer tube support plate,
The anti-vibration support plate is joined to the surface of the heat transfer tube support plate such that the heat transfer tube is sandwiched between the edge of the through hole and the anti-vibration support plate. Heat transfer tube support structure. 前記防振支持板は、前記防振支持板のうちの前記伝熱管に接触する接触面の曲率が、前記伝熱管の外側面の曲率に等しくなるように、形成されている請求項１に記載される伝熱管支持構造物。   The said vibration-proof support plate is formed so that the curvature of the contact surface which contacts the said heat exchanger tube among the said vibration-proof support plates may become equal to the curvature of the outer surface of the said heat exchanger tube. Heat transfer tube support structure. 前記伝熱管は、
管と、
前記管の外側に接合されたフィンとを備え、
前記防振支持板は、前記フィンに接触することにより、前記伝熱管を支持する請求項１〜請求項２のうちのいずれか一項に記載される伝熱管支持構造物。 The heat transfer tube is
Tube,
A fin joined to the outside of the tube,
The said anti-vibration support plate is a heat exchanger tube support structure as described in any one of Claims 1-2 which supports the said heat exchanger tube by contacting the said fin. 他の伝熱管をさらに備え、
前記伝熱管支持板は、他の貫通孔がさらに形成され、
前記防振支持板は、さらに、前記他の貫通孔の縁と前記防振支持板との間に前記他の伝熱管が挟まれるように、配置される請求項１〜請求項３のうちのいずれか一項に記載される伝熱管支持構造物。 Further equipped with other heat transfer tubes,
The heat transfer tube support plate is further formed with other through holes,
The said vibration-proof support plate is further arrange | positioned so that said other heat exchanger tube may be pinched | interposed between the edge of said other through-hole, and said vibration-proof support plate. A heat transfer tube support structure described in any one of the above items. 請求項１〜請求項４のうちのいずれか一項に記載される伝熱管支持構造物と、
排ガスが流れる流路を形成する煙道とを備え、
前記伝熱管は、前記流路に配置される排熱回収ボイラ。 The heat transfer tube support structure according to any one of claims 1 to 4,
A flue that forms a flow path through which exhaust gas flows,
The heat transfer tube is an exhaust heat recovery boiler disposed in the flow path.
JP2013235262A 2013-11-13 2013-11-13 Heat transfer tube support structure and exhaust heat recovery boiler Active JP6407518B2 (en)

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MX2016005164A MX2016005164A (en) 2013-11-13 2014-08-11 Heat transfer pipe support structure and waste heat recovery boiler.
PCT/JP2014/071226 WO2015072190A1 (en) 2013-11-13 2014-08-11 Heat transfer pipe support structure and waste heat recovery boiler
CN201480057696.XA CN105659049A (en) 2013-11-13 2014-08-11 Heat transfer pipe support structure and waste heat recovery boiler
KR1020167010844A KR20160064162A (en) 2013-11-13 2014-08-11 Heat transfer pipe support structure and waste heat recovery boiler
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JPS63104882U (en) * 1986-12-23 1988-07-07
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MX2016005164A (en) 2016-08-08
KR20160064162A (en) 2016-06-07

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