CN105403091A - H-shaped fin heating surface applied to low-temperature reheater and heat exchange method of H-shaped fin heating surface - Google Patents
H-shaped fin heating surface applied to low-temperature reheater and heat exchange method of H-shaped fin heating surface Download PDFInfo
- Publication number
- CN105403091A CN105403091A CN201510977864.3A CN201510977864A CN105403091A CN 105403091 A CN105403091 A CN 105403091A CN 201510977864 A CN201510977864 A CN 201510977864A CN 105403091 A CN105403091 A CN 105403091A
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- China
- Prior art keywords
- low
- heating surface
- temperature reheater
- reheater
- type fin
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- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000000779 smoke Substances 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 6
- 239000003546 flue gas Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000011295 pitch Substances 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/30—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means being attachable to the element
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Geometry (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Induction Heating (AREA)
Abstract
The invention discloses an H-shaped fin heating surface applied to a low-temperature reheater and a heat exchange method of the H-shaped fin heating surface. An existing heating surface of a horizontal low-temperature reheater of a power station boiler adopts a light tube way; due to this type of structure arrangement, the heating surface of the low-temperature reheater is relatively large in arrangement space; disadvantages are caused to utilization of the area space of a tail flue of the boiler; the arrangement space of other equipment is affected as well; the utilization rate of space is low. The H-shaped fin heating surface disclosed by the invention consists of low-temperature reheater coil tubes (1), wherein H-shaped fins (2) are welded on the low-temperature reheater coil tubes and are arranged at equal pitches. The invention discloses the H-shaped fin heating surface applied to the low-temperature reheater and the heat exchange method of the H-shaped fin heating surface.
Description
technical field:
the present invention relates to a kind of " H " type fin heating surface for low-temperature reheater and heat-exchange method thereof.
background technology:
existing station boiler horizontal low-temperature reheater heating surface all adopts light pipe form.This kind of arrangement pattern, causes low-temperature reheater heating surface arrangement space bigger than normal, and be unfavorable for the utilization of boiler back end ductwork regional space and affect the arrangement space of other equipment, space availability ratio is low.
summary of the invention:
the object of this invention is to provide a kind of " H " type fin heating surface for low-temperature reheater and heat-exchange method thereof.
above-mentioned object is realized by following technical scheme:
for " H " type fin heating surface of low-temperature reheater, its composition comprises: low-temperature reheater serpentine coil, and described low-temperature reheater serpentine coil welds " H " type fin, and described " H " type fin presses equal pitch arrangement.
described " H " type fin heating surface for low-temperature reheater, described " H " type fin is connected on described low-temperature reheater serpentine coil by Resistance Welding, and the thickness of described " H " type fin is 1 ~ 3mm.
described " H " type fin heating surface for low-temperature reheater, described " H " type fin is divided into two parts, is symmetrically welded at the both sides of described low-temperature reheater serpentine coil.
described " H " type fin heating surface for low-temperature reheater, described low-temperature reheater serpentine coil is identical or same levels with the material of described " H " type fin.
a heat-exchange method for described " H " type fin heating surface for low-temperature reheater, the method comprises the steps:
described " H " type fin is welded by electric resistance welding with reheater pipe, according to technical parameter needs, all fins are soldered on reheater coiled pipe with certain pitch, boiler smoke is perpendicular through " H " type fin low-temperature reheater, fin is as the extended surface of reheater serpentine coil, heat is absorbed from boiler smoke, and transfer heat to reheater serpentine coil in thermo-conducting manner, and the reheated steam finally transferred heat in heating surface, complete the heat transfer process of flue gas to steam, realize the exchange heat of boiler smoke and reheater steam.
beneficial effect of the present invention:
the present invention includes " H " type fin of the installation on horizontal low-temperature reheater serpentine coil and serpentine coil, " H " type fin is welded by electric resistance welding with reheater pipe, according to technical parameter needs, all fins are soldered on reheater coiled pipe with certain pitch, boiler smoke is perpendicular through " H " type fin low-temperature reheater, fin is as the extended surface of reheater serpentine coil, heat is absorbed from boiler smoke, and transfer heat to reheater serpentine coil in thermo-conducting manner, and the reheated steam finally transferred heat in heating surface, complete the heat transfer process of flue gas to steam, realize the exchange heat of boiler smoke and reheater steam.
after reheater serpentine coil of the present invention increases " H " type fin, the surface area of reheater heating surface rolls up, and is equivalent in identical space, can arrange the heat exchange area of larger reheater heating surface; Meanwhile, effectively reduce flue gas to the wearing and tearing of low-temperature reheater heating surface, and the eddy current produced when effectively preventing flue gas from flowing through heating surface and heating surface resonate.
the present invention effectively reduces the height of serpentine coil tube panel or the quantity of tube panel, reduces the space that whole low-temperature reheater heating surface takies, and boiler structure can be made to arrange compacter, reasonable; The heat exchange area of effective increase horizontal low-temperature reheater, reduce the arrangement space of horizontal low-temperature reheater, for the equipment such as boiler economizer exhaust pass, boiler economizer exhaust pass ash bucket, SCR denitration device exhaust pass, air preheater heat primary air road, the hot secondary air duct of air preheater provide larger arrangement space, ensure that space utilization is more reasonable.
accompanying drawing illustrates:
accompanying drawing 1 is structural representation of the present invention.
accompanying drawing 2 is sectional views of the present invention.
detailed description of the invention:
embodiment 1:
for " H " type fin heating surface of low-temperature reheater, its composition comprises: low-temperature reheater serpentine coil, and described low-temperature reheater serpentine coil welds " H " type fin, and described " H " type fin presses equal pitch arrangement.
embodiment 2:
" H " type fin heating surface for low-temperature reheater according to embodiment 1, described " H " type fin is connected on described low-temperature reheater serpentine coil by Resistance Welding, and the thickness of described " H " type fin is 1 ~ 3mm.
embodiment 3:
" H " type fin heating surface for low-temperature reheater according to embodiment 1 or 2, described " H " type fin is divided into two parts, is symmetrically welded at the both sides of described low-temperature reheater serpentine coil.
embodiment 4:
" H " type fin heating surface for low-temperature reheater according to embodiment 1 or 2 or 3, described low-temperature reheater serpentine coil is identical or same levels with the material of described " H " type fin.
embodiment 5:
a heat-exchange method for " H " type fin heating surface for low-temperature reheater that one of embodiment 1-4 is described, the method comprises the steps:
described " H " type fin is welded by electric resistance welding with reheater pipe, according to technical parameter needs, all fins are soldered on reheater coiled pipe with certain pitch, boiler smoke is perpendicular through " H " type fin low-temperature reheater, fin is as the extended surface of reheater serpentine coil, heat is absorbed from boiler smoke, and transfer heat to reheater serpentine coil in thermo-conducting manner, and the reheated steam finally transferred heat in heating surface, complete the heat transfer process of flue gas to steam, realize the exchange heat of boiler smoke and reheater steam.
Claims (5)
1. for " H " type fin heating surface of low-temperature reheater, its composition comprises: low-temperature reheater serpentine coil, is characterized in that: described low-temperature reheater serpentine coil welds " H " type fin, and described " H " type fin presses equal pitch arrangement.
2. " H " type fin heating surface for low-temperature reheater according to claim 1, it is characterized in that: described " H " type fin is connected on described low-temperature reheater serpentine coil by Resistance Welding, the thickness of described " H " type fin is 1 ~ 3mm.
3. " H " type fin heating surface for low-temperature reheater according to claim 1 and 2, is characterized in that: described " H " type fin is divided into two parts, is symmetrically welded at the both sides of described low-temperature reheater serpentine coil.
4. " H " type fin heating surface for low-temperature reheater according to claim 1 or 2 or 3, is characterized in that: described low-temperature reheater serpentine coil is identical or same levels with the material of described " H " type fin.
5. a heat-exchange method for " H " type fin heating surface for low-temperature reheater that one of claim 1-4 is described, is characterized in that: the method comprises the steps:
Described " H " type fin is welded by electric resistance welding with reheater pipe, according to technical parameter needs, all fins are soldered on reheater coiled pipe with certain pitch, boiler smoke is perpendicular through " H " type fin low-temperature reheater, fin is as the extended surface of reheater serpentine coil, heat is absorbed from boiler smoke, and transfer heat to reheater serpentine coil in thermo-conducting manner, and the reheated steam finally transferred heat in heating surface, complete the heat transfer process of flue gas to steam, realize the exchange heat of boiler smoke and reheater steam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510977864.3A CN105403091A (en) | 2015-12-23 | 2015-12-23 | H-shaped fin heating surface applied to low-temperature reheater and heat exchange method of H-shaped fin heating surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510977864.3A CN105403091A (en) | 2015-12-23 | 2015-12-23 | H-shaped fin heating surface applied to low-temperature reheater and heat exchange method of H-shaped fin heating surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105403091A true CN105403091A (en) | 2016-03-16 |
Family
ID=55468733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510977864.3A Pending CN105403091A (en) | 2015-12-23 | 2015-12-23 | H-shaped fin heating surface applied to low-temperature reheater and heat exchange method of H-shaped fin heating surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105403091A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168368A (en) * | 2016-08-26 | 2016-11-30 | 江苏汇能锅炉有限公司 | A kind of boiler reheater |
| CN106402842A (en) * | 2016-08-30 | 2017-02-15 | 哈尔滨锅炉厂有限责任公司 | Structure for ultra-supercritical fin low-temperature reheater |
| CN106524791A (en) * | 2016-12-22 | 2017-03-22 | 中国科学院广州能源研究所 | Three-dimensional variable-space variable-structure flue gas reheater |
| CN106762090A (en) * | 2016-12-14 | 2017-05-31 | 俞扬池 | A kind of Diesel engine high temperature heat sink |
| CN107477563A (en) * | 2016-06-07 | 2017-12-15 | 张家港市华正进出口贸易有限公司 | Coal saving device |
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| CN2548107Y (en) * | 2002-06-08 | 2003-04-30 | 东方锅炉厂无锡热管分厂 | H-type finned tube |
| CN201463685U (en) * | 2009-09-27 | 2010-05-12 | 哈尔滨市阿城区华宇散热器厂 | Oval H-type fin tube |
| CN202304537U (en) * | 2011-08-25 | 2012-07-04 | 青岛凯能锅炉设备有限公司 | Dual-H-type finned tube |
| CN202485527U (en) * | 2012-03-16 | 2012-10-10 | 东方日立锅炉有限公司 | H-shaped finned tube |
| CN204115544U (en) * | 2014-06-25 | 2015-01-21 | 上海理工大学 | H type flat tooth finned tube and H type flat tooth finned tube heat-exchanging tube bundle |
| US20150053377A1 (en) * | 2013-08-26 | 2015-02-26 | Mitsubishi Heavy Industries, Ltd. | Heat exchanger and heat exchanger manufacturing method |
| US20150122471A1 (en) * | 2013-11-07 | 2015-05-07 | Lg Electronics Inc. | Heat exchanger and method of manufacturing the same |
| CN204534561U (en) * | 2015-04-08 | 2015-08-05 | 武汉凯迪工程技术研究总院有限公司 | The efficient mixed type economizer of biomass recirculating fluidized bed boiler |
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2015
- 2015-12-23 CN CN201510977864.3A patent/CN105403091A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2548107Y (en) * | 2002-06-08 | 2003-04-30 | 东方锅炉厂无锡热管分厂 | H-type finned tube |
| CN201463685U (en) * | 2009-09-27 | 2010-05-12 | 哈尔滨市阿城区华宇散热器厂 | Oval H-type fin tube |
| CN202304537U (en) * | 2011-08-25 | 2012-07-04 | 青岛凯能锅炉设备有限公司 | Dual-H-type finned tube |
| CN202485527U (en) * | 2012-03-16 | 2012-10-10 | 东方日立锅炉有限公司 | H-shaped finned tube |
| US20150053377A1 (en) * | 2013-08-26 | 2015-02-26 | Mitsubishi Heavy Industries, Ltd. | Heat exchanger and heat exchanger manufacturing method |
| US20150122471A1 (en) * | 2013-11-07 | 2015-05-07 | Lg Electronics Inc. | Heat exchanger and method of manufacturing the same |
| CN204115544U (en) * | 2014-06-25 | 2015-01-21 | 上海理工大学 | H type flat tooth finned tube and H type flat tooth finned tube heat-exchanging tube bundle |
| CN204534561U (en) * | 2015-04-08 | 2015-08-05 | 武汉凯迪工程技术研究总院有限公司 | The efficient mixed type economizer of biomass recirculating fluidized bed boiler |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107477563A (en) * | 2016-06-07 | 2017-12-15 | 张家港市华正进出口贸易有限公司 | Coal saving device |
| CN106168368A (en) * | 2016-08-26 | 2016-11-30 | 江苏汇能锅炉有限公司 | A kind of boiler reheater |
| CN106402842A (en) * | 2016-08-30 | 2017-02-15 | 哈尔滨锅炉厂有限责任公司 | Structure for ultra-supercritical fin low-temperature reheater |
| CN106762090A (en) * | 2016-12-14 | 2017-05-31 | 俞扬池 | A kind of Diesel engine high temperature heat sink |
| CN106524791A (en) * | 2016-12-22 | 2017-03-22 | 中国科学院广州能源研究所 | Three-dimensional variable-space variable-structure flue gas reheater |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160316 |
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| RJ01 | Rejection of invention patent application after publication |