CN101963363B - Radiant tube heat exchanger - Google Patents
Radiant tube heat exchanger Download PDFInfo
- Publication number
- CN101963363B CN101963363B CN201010508509A CN201010508509A CN101963363B CN 101963363 B CN101963363 B CN 101963363B CN 201010508509 A CN201010508509 A CN 201010508509A CN 201010508509 A CN201010508509 A CN 201010508509A CN 101963363 B CN101963363 B CN 101963363B
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- tube
- inner sleeve
- outer tube
- sheet
- 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.)
- Expired - Fee Related
Links
- 239000003517 fume Substances 0.000 claims abstract description 17
- 230000002787 reinforcement Effects 0.000 claims description 4
- 238000009413 insulation Methods 0.000 abstract description 2
- 239000012774 insulation material Substances 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 description 16
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 239000003546 flue gas Substances 0.000 description 6
- 239000011229 interlayer Substances 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Combustion Of Fluid Fuel (AREA)
- Air Supply (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a radiant tube heat exchanger which comprises a heat exchanger fin and a heat exchange tube connected with the heat exchanger fin. An inner sleeve, a middle fume tube and an outer sleeve are arranged in the heat exchange tube from inside to outside; one end of the inner sleeve extends to an inner cavity of the heat exchanger fin and the other end is communicated with an inner cavity of the outer sleeve; one end of the middle fume tube extends to an opening of the inner cavity of the heat exchanger fin and the other end is communicated with an exhaust pipe in radial direction; and one end of the outer sleeve, which is close to the heat exchanger fin, is communicated with an air inlet pipe in radial direction. The radiant tube heat exchanger can effectively reduce the emission temperature of fume, and the outer surface of the heat exchanger is lower than 80 DEG C without using an extra thermal insulation material for heat insulation.
Description
Technical field:
The present invention relates to a kind of radiant tube heat exchanger, particularly a kind of combustion air preheating heat exchanger.
Background technology:
For the used for industrial furnace heat exchanger in the existing industrial combustion system, heat exchange efficiency is lower, and heat exchanger self surface temperature is higher, needs the extra heat-insulating material of laying.Because the volume in the furnace chamber is limit, heat exchange area is big inadequately, causes heat exchanger discharged flue gas temperature higher, and is bigger to the loss of heat.The crushing of heat exchanger is bigger, needs to select high-power combustion fan to overcome corresponding resistance, causes the power consumption of combustion fan to increase.
Summary of the invention:
For overcoming the defective of prior art, the object of the present invention is to provide a kind of radiant tube heat exchanger that is used for industrial furnace, it can increase heat exchange area, improve heat exchange efficiency, can be preheating to 550 degrees centigrade or higher to the normal temperature combustion air from room temperature, realize the energy-saving and cost-reducing of industrial furnace, reduce thermal pollution environment.
Technical solution problem of the present invention adopts following technical scheme:
The radiant tube heat exchanger, comprise Heat exchanger sheet and the heat exchanger tube that is connected with described Heat exchanger sheet, described heat exchanger tube from-inner-to-outer is provided with inner sleeve, middle level fume pipe and outer tube, and an end of described inner sleeve extends to the inner chamber of described Heat exchanger sheet, and the other end communicates with the inner chamber of outer tube; One end of described middle level fume pipe extends to the inner chamber oral area of described Heat exchanger sheet, and other end radial communication has blast pipe, in the end radial communication near the outer tube of Heat exchanger sheet blast pipe is arranged.
The middle part of described outer tube is provided with one section outer tube bellows; Be provided with the inner sleeve bellows at a end away from the inner sleeve of Heat exchanger sheet.
Described inner sleeve is provided with the inner sleeve reinforcement; Described middle level fume pipe is provided with brace rod.
Compared with the prior art, beneficial effect of the present invention is embodied in:
For the used for industrial furnace heat exchanger in the existing industrial combustion system, radiant tube heat exchanger of the present invention can effectively reduce smog discharge temperature, and the hull-skin temperature of heat exchanger is lower than 80 degrees centigrade, and it is heat insulation not need extra insulation material.Blast pipe and blast pipe shift to install, prolonged the heat exchanger time of hot and cold gas, increased its heat exchange area, heat in the flue gas is passed to combustion-supporting normal temperature air by exchange heat, both reduced the temperature of fume emission, improved the temperature of combustion air again, heat exchange efficiency can improve 20% to 40%.The crushing of radiant tube heat exchanger is controlled in 18%, uses common combustion fan just can realize running well.
Description of drawings:
Fig. 1 is a structural representation of the present invention, and arrow is depicted as the flow direction of combustion air among the figure; Figure 1A is the A portion enlarged drawing of Fig. 1.
Number in the figure: 1 Heat exchanger sheet, 3 inner sleeves, 4 adpting flanges, 5 middle level fume pipes, 6 inner sleeve reinforcements, 8 outer tube bellowss, 9 brace rods, 10 blast pipes, 11 inner sleeve bellowss, 12 outer tube end sockets, 15 blast pipes, 16 outer tubes.
Below pass through the specific embodiment, and the invention will be further described in conjunction with the accompanying drawings.
The specific embodiment:
Embodiment: in conjunction with Fig. 1, the radiant tube heat exchanger of present embodiment, comprise cast-in-block wing needle recuperator sheet 1 and the heat exchanger tube that is connected with Heat exchanger sheet 1, the heat exchanger tube from-inner-to-outer is provided with inner sleeve 3, middle level fume pipe 5 and outer tube 16, one end of inner sleeve 3 extends to the inner chamber of Heat exchanger sheet 1, and the other end communicates with the inner chamber of outer tube 16; One end of middle level fume pipe 5 extends to the inner chamber oral area of Heat exchanger sheet 1, and other end radial communication has blast pipe 10, and radial communication has blast pipe 15 on an end of outer tube, and described blast pipe is near the Heat exchanger sheet place.
In order to absorb expansion and the contraction that variations in temperature causes, effectively prevent the stress that thermal shock brings.Be provided with one section outer tube bellows 8 at the middle part of outer tube 16; Be provided with inner sleeve bellows 11 at a end away from the inner sleeve of Heat exchanger sheet.Inner sleeve, outer tube are designed to straight tube, have reduced the resistance during air flows, and have reduced the crushing of combustion air effectively.
In order to strengthen the bonding strength of inner sleeve, middle level fume pipe, inner sleeve is provided with inner sleeve reinforcement 6; The middle level fume pipe is provided with brace rod 9.
In conjunction with Fig. 1, in the use, by adpting flange 4 this heat exchanger is connected on the furnace chamber wall, one end of Heat exchanger sheet 1 is suspended in the furnace chamber, the normal temperature combustion air enters the radiant tube heat exchanger from blast pipe 15, outermost layer (interlayer between outer tube 16 and the middle level fume pipe 5) on the heat exchanger right side flows, enter ventilation inner sleeve 3 after arriving outer tube end socket 12, pass the inner chamber that enters wing needle recuperator sheet 1 behind the adpting flange 4, after combustion air in Heat exchanger sheet and the abundant heat exchange of the high-temperature flue gas outside the Heat exchanger sheet, preheated air is got back to right-hand member after passing adpting flange 4 once more, discharges the radiant tube heat exchanger by the interlayer between middle level fume pipe 5 and the ventilation inner sleeve 7 by exhaust duct 10.The combustion air of this moment has been a high temperature air by original normal temperature state preheating, can send into and participate in burning in the burner.
The Heat exchanger sheet 1 of wing shape is monoblock cast, and flue gas is given the combustion air that flows through from its inner chamber exchange heat when its surface is flow through.Cast-in-block uses and guarantees that it can not produce leak source, and flue gas and combustion air just can not mix together yet, cause that heat exchange is not enough or local temperature is inhomogeneous.Adopting wing shape sheet is exactly to increase its heat exchange area under the situation that takies the furnace chamber inner volume in order to reduce.Heat exchange surface area had both further been strengthened in the multilayer sleeve design of adpting flange 4 right-hand members, had guaranteed that again the temperature of its outer surface is lower than 80 degrees centigrade.Be normal temperature cooling air in the interlayer of its outer tube 16 and flue gas middle sleeve 5, this design combines heat exchange and cooling dexterously.The design of outer tube bellows 8 and inner sleeve bellows 11 can absorb expansion and the contraction that variations in temperature causes, and effectively prevents the stress that thermal shock brings.Straight tube design has reduced the resistance during air flows, and has reduced the crushing of combustion air effectively.
Claims (3)
1. radiant tube heat exchanger, it is characterized in that comprising Heat exchanger sheet (1) and the heat exchanger tube that is connected with described Heat exchanger sheet, described heat exchanger tube from-inner-to-outer is provided with inner sleeve (3), middle level fume pipe (5) and outer tube (16), one end of described inner sleeve (3) extends to the inner chamber of described Heat exchanger sheet (1), and the other end communicates with the inner chamber of outer tube (16); One end of described middle level fume pipe (5) extends to the inner chamber oral area of described Heat exchanger sheet, and other end radial communication has blast pipe (10), in the end radial communication near the outer tube of Heat exchanger sheet blast pipe (15) is arranged.
2. radiant tube heat exchanger according to claim 1 is characterized in that the middle part of described outer tube is provided with one section outer tube bellows (8); Be provided with inner sleeve bellows (11) at a end away from the inner sleeve of Heat exchanger sheet.
3. radiant tube heat exchanger according to claim 1 is characterized in that described inner sleeve is provided with inner sleeve reinforcement (6); Described middle level fume pipe is provided with brace rod (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010508509A CN101963363B (en) | 2010-10-15 | 2010-10-15 | Radiant tube heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010508509A CN101963363B (en) | 2010-10-15 | 2010-10-15 | Radiant tube heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101963363A CN101963363A (en) | 2011-02-02 |
| CN101963363B true CN101963363B (en) | 2011-12-07 |
Family
ID=43516350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010508509A Expired - Fee Related CN101963363B (en) | 2010-10-15 | 2010-10-15 | Radiant tube heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101963363B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954484B (en) * | 2011-08-31 | 2015-07-29 | 宝钢工业炉工程技术有限公司 | Compact thermal stress compensation formula radiant tube heat exchange device |
| CN102818268A (en) * | 2012-07-03 | 2012-12-12 | 中冶南方(武汉)威仕工业炉有限公司 | Triple-stroke air-preheating radiant tube burner heat exchanger |
| CN102853445A (en) * | 2012-07-03 | 2013-01-02 | 中冶南方(武汉)威仕工业炉有限公司 | Double-stroke air preheating radiant tube burner heat exchanger |
| CN103574632B (en) * | 2013-11-22 | 2017-02-01 | 中冶南方(武汉)威仕工业炉有限公司 | Baffle board radiant tube burner heat exchanger and heat exchange method |
| IT201900001633A1 (en) * | 2019-02-05 | 2020-08-05 | Esa S P A | RADIANT PIPE RECOVERY BURNER UNIT |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2811847Y (en) * | 2005-08-09 | 2006-08-30 | 中山华帝燃具股份有限公司 | High-efficiency energy-saving gas water heater |
| US20080308152A1 (en) * | 2007-06-15 | 2008-12-18 | The Boeing Company | Solar collector with angled cooling fins |
| TWM334959U (en) * | 2008-01-07 | 2008-06-21 | Cooler Master Co Ltd | Lateral extension radiator of heat-pipe |
| CN201827904U (en) * | 2010-10-15 | 2011-05-11 | 陆守祥 | Radiant tube heat exchanger |
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2010
- 2010-10-15 CN CN201010508509A patent/CN101963363B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101963363A (en) | 2011-02-02 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HEFEI EQUIP INDUSTRIAL EQUIPMENT CO., LTD. Free format text: FORMER OWNER: LU SHOUXIANG Effective date: 20130606 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130606 Address after: 230088 No. 9, East diving Road, hi tech Zone, Anhui, Hefei 506 Patentee after: Hefei Equip Industrial Equipment Co., Ltd. Address before: High tech Zone Hefei city Anhui province 230088 Tianzhi Road No. 5 Building 5 layer Patentee before: Lu Shouxiang |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20161015 |
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| CF01 | Termination of patent right due to non-payment of annual fee |