US20160281976A1 - Heat transfer pipe support structure and waste heat recovery boiler - Google Patents

Heat transfer pipe support structure and waste heat recovery boiler Download PDF

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Publication number
US20160281976A1
US20160281976A1 US15/031,364 US201415031364A US2016281976A1 US 20160281976 A1 US20160281976 A1 US 20160281976A1 US 201415031364 A US201415031364 A US 201415031364A US 2016281976 A1 US2016281976 A1 US 2016281976A1
Authority
US
United States
Prior art keywords
heat transfer
transfer pipe
support plate
vibration
support structure
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.)
Abandoned
Application number
US15/031,364
Other languages
English (en)
Inventor
Takahiro OKIMOTO
Naoki Suganuma
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Power Ltd
Original Assignee
Mitsubishi Hitachi Power Systems Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Hitachi Power Systems Ltd filed Critical Mitsubishi Hitachi Power Systems Ltd
Assigned to MITSUBISHI HITACHI POWER SYSTEMS, LTD. reassignment MITSUBISHI HITACHI POWER SYSTEMS, LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: OKIMOTO, Takahiro, SUGANUMA, NAOKI
Publication of US20160281976A1 publication Critical patent/US20160281976A1/en
Abandoned legal-status Critical Current

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Classifications

    • 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

Definitions

  • the present invention relates to a heat transfer pipe support structure and a waste heat recovery boiler, and particularly relates to a heat transfer pipe support structure and a waste heat recovery boiler that are used to collect waste heat.
  • a waste heat recovery boiler that collects waste heat from high-temperature exhaust gas.
  • a plurality of heat transfer pipes are provided in a flue.
  • the waste heat recovery boiler transfers the heat of the exhaust gas to water, by causing the high-temperature exhaust gas to flow through the flue and causing the water to flow through the plurality of heat transfer pipes.
  • the plurality of heat transfer pipes are supported by the flue as a result of being inserted through a plurality of through-holes formed in a heat transfer pipe support plate (see Patent Document 1).
  • Patent Document 1 Japanese Unexamined Patent Application Publication No. 2002-295989A
  • the plurality of heat transfer pipes may vibrate. As a result of the plurality of heat transfer pipes vibrating, sections that are in contact with the heat transfer pipe support plate may wear. It has been desired to appropriately support the plurality of heat transfer pipes and to reduce the wear of the plurality of heat transfer pipes.
  • An object of the present invention is to provide a heat transfer pipe support structure and a waste heat recovery boiler that support heat transfer pipes appropriately.
  • Another object of the present invention is to provide a heat transfer pipe support structure and a waste heat recovery boiler that reduce wear of heat transfer pipes.
  • Yet another object of the present invention is to provide a heat transfer pipe support structure and a waste heat recovery boiler that suppress vibration of heat transfer pipes.
  • a heat transfer pipe support structure includes a heat transfer pipe support plate having a first through-hole formed therein; a first heat transfer pipe configured to be inserted through the first through-hole; and a vibration-damping support plate formed in a belt-shape.
  • the edge of the vibration-damping support plate is joined to the surface of the heat transfer pipe support plate so that the first heat transfer pipe is held between the edge of the first through-hole and the vibration-damping support plate.
  • the vibration-damping support plate is formed so that a curvature of a contact surface of the vibration-damping support plate that is in contact with the first heat transfer pipe becomes equal to a curvature of the outer surface of the first heat transfer pipe.
  • the heat transfer pipe includes a pipe and a fin joined to the outer side of the pipe.
  • the vibration-damping support plate supports the first heat transfer pipe by being in contact with the fin.
  • the above-described heat transfer pipe support structure supports the first heat transfer pipe as a result of the vibration-damping support plate being in contact with the fin.
  • the above-described heat transfer pipe can appropriately support the first heat transfer pipe provided with the fin.
  • the heat transfer pipe support structure according to the first aspect of the present invention further includes a second heat transfer pipe.
  • the heat transfer pipe support plate further has a second through-hole formed therein, and the vibration-damping support plate is disposed so that the second heat transfer pipe is held between the edge of the second through-hole and the vibration-damping support plate.
  • the vibration-damping support plate is provided so as to reduce vibration of the plurality of heat transfer pipes.
  • the above-described heat transfer pipe support structure can be manufactured easily, compared with other heat transfer pipe support structures in which each of a plurality of vibration-damping support plates is provided for each of a plurality of heat transfer pipes.
  • a waste heat recovery boiler includes the heat transfer pipe support structure according to the first aspect of the present invention and a flue forming a flow path through which an exhaust gas flows.
  • the heat transfer pipes are disposed in the flow path.
  • the above-described waste heat recovery boiler can appropriately collect waste heat from the exhaust gas, while inhibiting the heat transfer pipe from vibrating due to the flow of the exhaust gas.
  • the heat transfer pipe can be appropriately supported so as to reduce the wear of the heat transfer pipe by being held between the edge of the through-hole and the vibration-damping support plate.
  • FIG. 1 is a diagram illustrating a heat transfer pipe support structure provided in a waste heat recovery boiler.
  • FIG. 2 is a perspective view of a vibration-damping support plate.
  • FIG. 3 is an enlarged view of the heat transfer pipe support structure.
  • FIG. 4 is a cross-sectional view of the heat transfer pipe support structure.
  • the heat transfer pipe support plate 2 is formed in a planar shape.
  • the heat transfer pipe support plate 2 is supported by a flue so as to be disposed along a plane substantially parallel with the vertical direction.
  • a plurality of through-holes 6 -( 1 , 1 ) to 6 -( m, n ) are formed in the heat transfer pipe support plate 2 .
  • the plurality of through holes 6 -( 1 , 1 ) to 6 -( m, n ) are arranged in a lattice pattern.
  • the plurality of through-holes 6 -( 1 , 1 ) to 6 -( m, n ) overlap with one of a plurality of parallel lines, and a chosen straight line of the plurality of parallel lines overlaps with a plurality of through-holes 6 -( 1 , j) to 6 -( m, j ) of the plurality of through-holes 6 -( 1 , 1 ) to 6 -( m, n ).
  • the plurality of through-holes 6 -( 1 , 1 ) to 6 -( m, n ) respectively correspond to the plurality of heat transfer pipes 3 -( 1 , 1 ) to 3 -( m, n ).
  • Each of the plurality of heat transfer pipes 3 -( 1 , 1 ) to 3 -( m, n ) is formed in a cylindrical shape.
  • Each of the plurality of heat transfer pipes 3 -( 1 , 1 ) to 3 -( m, n ) is disposed along a straight line parallel with the normal direction of the heat transfer pipe support plate 2 , namely, disposed along a straight line parallel with the horizontal direction.
  • a chosen heat transfer pipe 3 -( i, j ) of the plurality of heat transfer pipes 3 -( 1 , 1 ) to 3 -( m, n ) is supported by the heat transfer pipe support plate 2 as a result of being inserted through a through-hole 6 -( i, j ) of the plurality of through-holes 6 -( 1 , 1 ) to 6 -( m, n ) that corresponds to the heat transfer pipe 3 -( i, j ).
  • the vibration-damping support plate 5 - j is curved, which forms a plurality of contact surfaces 7 - 1 to 7 - m therein.
  • the vibration-damping support plate 5 - j is disposed so that the contact surface 7 - i comes into contact with the outer surface of the heat transfer pipe 3 ( i, j ).
  • the vibration-damping support plate 5 - j is joined to one surface of the heat transfer pipe support plate 2 by welding.
  • the heat transfer pipe 3 -( i, j ) includes a pipe 11 and a fin 12 .
  • the pipe 11 is formed of a metal and formed in a tubular shape.
  • a flow path 14 is formed inside the pipe 11 .
  • the fin 12 is formed of a metal plate that is formed in a belt-shape.
  • the fin 12 is joined to the pipe 11 , with one edge of the belt-shaped fin 12 spirally joined to the outer wall of the pipe 11 , so as to protrude to the outer side from the outer wall of the pipe 11 .
  • the heat transfer pipe 3 -( i, j ) is formed so that the edge of the fin 12 that is not joined to the pipe 11 follows the side surface of a cylinder.
  • the vibration-damping support plate 5 - j is formed so that a curvature of the contact surface 7 - i corresponding to the heat transfer pipe 3 -( i, j ) becomes equal to a curvature of a surface along which the outer edge of the fin 12 of the heat transfer pipe 3 -( i, j ) extends.
  • the vibration-damping support plate 5 - j is disposed so that each of the plurality of contact surfaces 7 - 1 to 7 - m comes into contact with the outer edge of the fin 12 of each of the plurality of heat transfer pipes 3 -( 1 , j) to 3 -( m, j ), and joined to the heat transfer pipe support plate 2 .
  • the heat transfer pipe support structure 1 is applied to a waste heat recovery boiler.
  • the waste heat recovery boiler is provided with a duct that forms a flue, and the plurality of heat transfer pipe support structures 1 are disposed in the flue.
  • the waste heat recovery boiler causes a high-temperature exhaust gas discharged from a combustion apparatus, such as a boiler, to flow through the flue, and causes water to flow through the flow path 14 of each of the plurality of heat transfer pipes 3 -( 1 , 1 ) to 3 -( m, n ).
  • a combustion apparatus such as a boiler
  • the exhaust gas heats the plurality of heat transfer pipes 3 -( 1 , 1 ) to 3 -( m, n ) as a result of coming into contact with the plurality of heat transfer pipes 3 -( 1 , 1 ) to 3 -( m, n ), and then the exhaust gas is cooled by the plurality of heat transfer pipes 3 -( 1 , 1 ) to 3 -( m, n ).
  • the heat transferred from the exhaust gas to the plurality of heat transfer pipes 3 -( 1 , 1 ) to 3 -( m, n ) is transferred to the water flowing through the flow path 14 .
  • the plurality of heat transfer pipes 3 -( 1 , 1 ) to 3 -( m, n ) heats the water by transferring the heat of the exhaust gas to the water flowing through the flow path 14 .
  • the heat transfer pipe support structure 1 can reduce a clearance between the edge of the through-hole 6 -( i, j ) and the heat transfer pipe 3 -( i, j ) by supporting the heat transfer pipe 3 -( i, j ) through holding the heat transfer pipe 3 -( i, j ) between the vibration-damping support plate 5 - j and the edge of the through-hole 6 -( i, j ).
  • the plurality of heat transfer pipes 3 -( 1 , 1 ) to 3 -( m, n ) vibrate as a result of being subject to a force from the exhaust gas, particularly when the flow rate of the exhaust gas flowing through the flue is sufficiently high.
  • the vibration of the plurality of heat transfer pipes 3 -( 1 , 1 ) to 3 -( m, n ) is reduced as a result of the clearance between the edge of the through-hole 6 -( i, j ) and the heat transfer pipe 3 -( i, j ) being reduced.
  • providing the plurality of vibration-damping support plates 5 - 1 to 5 - n in the heat transfer pipe support structure 1 reduces the clearance between the edge of the through-hole 6 -( i, j ) and the heat transfer pipe 3 -( i, j ), enabling the vibration of the heat transfer pipe 3 -( i, j ) to be reduced.
  • the reduction of the vibration of the heat transfer pipe 3 -( i, j ) in the heat transfer pipe support structure 1 reduces a sliding movement of the outer side of the fin 12 of the heat transfer pipe 3 -( i, j ) with respect to the edge of the through-hole 6 -( i, j ), enabling the fin 12 of the heat transfer pipe 3 -( i, j ) to be inhibited from wearing.
  • the vibration-damping support plate 5 - j formed so that the curvature of the contact surface 7 - i becomes equal to the curvature of the surface along which the outer side of the heat transfer pipe 3 -( i, j ) extends allows the contact surface 7 - i to be in intimate contact with the outer side of the heat transfer pipe 3 -( i, j ).
  • the intimate contact of the contact surface 7 - i with the outer side of the heat transfer pipe 3 -( i, j ) in the heat transfer pipe support structure 1 can reduce a contact surface pressure received by a section of the heat transfer pipe 3 -( i, j ) that comes into contact with the contact surface 7 - i .
  • the intimate contact of the contact surface 7 - i with the outer side of the heat transfer pipe 3 -( i, j ) in the heat transfer pipe support structure 1 can support the heat transfer pipe 3 -( i, j ) appropriately so as to inhibit the heat transfer pipe 3 -( i, j ) from vibrating in the longitudinal direction of the vibration-damping support plate 5 - j.
  • the plurality of heat transfer pipes 3 -( 1 , 1 ) to 3 -( m, n ) may be replaced by a plurality of other heat transfer pipes that are arranged in a pattern different from the lattice pattern.
  • Examples of the plurality of other heat transfer pipes may include a plurality of heat transfer pipes arranged in a zigzag pattern.
  • the plurality of vibration-damping support plates 5 - 1 to 5 - n are disposed so as to reduce the clearances between the edges of the through-holes and the plurality of heat transfer pipes and joined to the heat transfer pipe support plate 2 .
  • the above-described heat transfer pipe support structure, to which the plurality of other heat transfer pipes are applied, can also reduce the vibration and wear of the plurality of heat transfer pipes, in the same manner as of the heat transfer pipe support structure 1 of the above-described embodiment.
  • a plurality of other vibration-damping support plates may be further joined to a surface of the heat transfer pipe support plate 2 , on the reverse side of the surface to which the plurality of vibration-damping support plates 5 - 1 to 5 - n of the heat transfer pipe support plate 2 are joined.
  • the plurality of other vibration-damping support plates are disposed so as to reduce the clearances between the edges of the plurality of through-holes 6 -( 1 , 1 ) to 6 -( m, n ) and the plurality of heat transfer pipes 3 -( 1 , 1 ) to 3 -( m, n ), in the same manner as the plurality of vibration-damping support plates 5 - 1 to 5 - n .
  • the above-described heat transfer pipe support structure further provided with the plurality of other vibration-damping support plates can also reduce the wear of the plurality of heat transfer pipes 3 -( 1 , 1 ) to 3 -( m, n ), in the same manner as of the heat transfer pipe support structure 1 of the above-described embodiment. Further, compared with the above-described heat transfer pipe support structure 1 , the heat transfer pipe support structure further provided with the plurality of other vibration-damping support plates can support the plurality of heat transfer pipes 3 -( 1 , 1 ) to 3 -( m, n ) more firmly and also can reduce the wear of the plurality of heat transfer pipes 3 -( 1 , 1 ) to 3 -( m, n ) more reliably.
  • the vibration-damping support plate 5 - j may be replaced by a plurality of other vibration-damping support plates corresponding to the plurality of heat transfer pipes 3 -( 1 , j) to 3 -( m, j ).
  • the plurality of other vibration-damping support plates corresponding to the heat transfer pipe 3 -( i, j ) are joined to the heat transfer pipe support plate 2 so as to reduce the clearance between the edge of the through-hole 6 -( i, j ) and the heat transfer pipe 3 -( i, j ).
  • the heat transfer pipe support structure can reduce the vibration and wear of the plurality of heat transfer pipes 3 -( 1 , j) to 3 -( m, j ).
  • the heat transfer pipe support structure 1 of the above-described embodiment because the number of the plurality of vibration-damping support plates 5 - 1 to 5 - n joined to the heat transfer pipe support plate 2 is smaller than the number of the plurality of heat transfer pipes 3 -( 1 , j) to 3 -( m, j ), the heat transfer pipe support structure 1 can be manufactured easily compared with the above-described heat transfer pipe support structure provided with the plurality of other vibration-damping support plates.
  • the heat transfer pipe 3 -( i, j ) may be replaced by another heat transfer pipe on which the fin 12 is not formed.
  • the heat transfer pipe support structure reduces the sliding movement of the heat transfer pipe with respect to the edge of the through-hole 6 -( i, j ), enabling the heat transfer pipe to be inhibited from wearing.

Landscapes

  • 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)
US15/031,364 2013-11-13 2014-08-11 Heat transfer pipe support structure and waste heat recovery boiler Abandoned US20160281976A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2013235262A JP6407518B2 (ja) 2013-11-13 2013-11-13 伝熱管支持構造物および排熱回収ボイラ
JP2013-235262 2013-11-13
PCT/JP2014/071226 WO2015072190A1 (ja) 2013-11-13 2014-08-11 伝熱管支持構造物および排熱回収ボイラ

Publications (1)

Publication Number Publication Date
US20160281976A1 true US20160281976A1 (en) 2016-09-29

Family

ID=53057136

Family Applications (1)

Application Number Title Priority Date Filing Date
US15/031,364 Abandoned US20160281976A1 (en) 2013-11-13 2014-08-11 Heat transfer pipe support structure and waste heat recovery boiler

Country Status (6)

Country Link
US (1) US20160281976A1 (ko)
JP (1) JP6407518B2 (ko)
KR (1) KR20160064162A (ko)
CN (1) CN105659049A (ko)
MX (1) MX2016005164A (ko)
WO (1) WO2015072190A1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11035615B2 (en) 2018-08-23 2021-06-15 Caterpillar Inc. Support clip for finned tube type heat exchangers

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102338706B1 (ko) 2020-05-13 2021-12-13 주식회사 디엠티 배열회수보일러용 신축이음관

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2402209A (en) * 1944-06-29 1946-06-18 Support for finned tubes
US2862693A (en) * 1953-07-24 1958-12-02 American Radiator & Standard Support for finned tube type heat exchangers
JPH03211397A (ja) * 1990-01-16 1991-09-17 Babcock Hitachi Kk 伝熱管支持装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4285396A (en) * 1979-01-25 1981-08-25 Wachter Associates, Inc. Steam generator tube support system
JPS63104882U (ko) * 1986-12-23 1988-07-07
JP2002295989A (ja) * 2001-03-29 2002-10-09 Babcock Hitachi Kk フィン付伝熱管およびその支持構造
JP2003161593A (ja) * 2001-11-20 2003-06-06 Babcock Hitachi Kk フィン付伝熱管の取付け構造
JP2007271157A (ja) * 2006-03-31 2007-10-18 Mitsubishi Heavy Ind Ltd 伝熱管の支持構造
JP2013148243A (ja) * 2012-01-17 2013-08-01 Mitsubishi Heavy Ind Ltd 熱交換器

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2402209A (en) * 1944-06-29 1946-06-18 Support for finned tubes
US2862693A (en) * 1953-07-24 1958-12-02 American Radiator & Standard Support for finned tube type heat exchangers
JPH03211397A (ja) * 1990-01-16 1991-09-17 Babcock Hitachi Kk 伝熱管支持装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Kusube, JPH03211397MT (English Translation), 09-1991 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11035615B2 (en) 2018-08-23 2021-06-15 Caterpillar Inc. Support clip for finned tube type heat exchangers

Also Published As

Publication number Publication date
JP6407518B2 (ja) 2018-10-17
WO2015072190A1 (ja) 2015-05-21
JP2015094559A (ja) 2015-05-18
CN105659049A (zh) 2016-06-08
KR20160064162A (ko) 2016-06-07
MX2016005164A (es) 2016-08-08

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