CN108061307A - It is a kind of with honeycomb heat exchanger tube from deashing air preheater - Google Patents
It is a kind of with honeycomb heat exchanger tube from deashing air preheater Download PDFInfo
- Publication number
- CN108061307A CN108061307A CN201810061352.6A CN201810061352A CN108061307A CN 108061307 A CN108061307 A CN 108061307A CN 201810061352 A CN201810061352 A CN 201810061352A CN 108061307 A CN108061307 A CN 108061307A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- exchanger tube
- air preheater
- honeycomb
- honeycomb heat
- 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.)
- Pending
Links
- 230000001413 cellular effect Effects 0.000 claims abstract description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical group [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 4
- 239000003546 flue gas Substances 0.000 claims description 4
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 2
- 239000010962 carbon steel Substances 0.000 claims description 2
- 238000005242 forging Methods 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 9
- 238000013517 stratification Methods 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000003517 fume Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
- F23L15/04—Arrangements of recuperators
-
- 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
Abstract
The invention discloses it is a kind of with honeycomb heat exchanger tube from deashing air preheater, the air preheater is the honeycomb heat exchanger tube of tubular structure, and honeycomb heat exchanger tube uses honeycomb pipe-wall, is air side on the inside of honeycomb heat exchanger tube, outside is fume side；The tube wall of honeycomb heat exchanger tube is covered with cellular pit, and in-line arrangement can be used in pit, and stagger arrangement arrangement can also be used；The present invention redesigns the air preheater in boiler back end ductwork on the premise of boiler exterior structure is not changed, the purpose that enhanced heat exchange mitigates dust stratification can be achieved, it ensure that the Effec-tive Function of air preheater, improve boiler operating efficiency, there is important economic benefit.
Description
Technical field
The present invention relates to a kind of boiler air preheaters, and in particular to a kind of pre- from deashing air with honeycomb heat exchanger tube
Hot device.
Technical background
Coal-burning boiler is reduction exhaust gas temperature, promotes boiler efficiency, is all disposed with air preheater in back-end ductwork,
Wherein tubular air preheater occupies sizable ratio.The height of air preheater heat exchange efficiency directly affects boiler
The efficiency of cost and boiler.However, since boiler back end ductwork flue gas dust burdening is very high, thus air preheater generally existing
Phenomena such as dust stratification is serious, and then exhaust gas temperature rise, boiler efficiency is caused to reduce, coal consumption index is ultimately resulted in less than boiler
Design load.In addition, collecting ash also results in the rise of air preheater resistance, increase air-introduced machine power consumption.Therefore, it is raising unit operation
Economy is, it is necessary to which boiler air preheater can effectively mitigate dust stratification, enhanced heat exchange.
The content of the invention
The present invention is solves air preheater dust stratification and enhanced heat exchange, it is proposed that it is a kind of with honeycomb heat exchanger tube from deashing
Air preheater, core be on the premise of boiler exterior structure is not changed to the air preheater in boiler back end ductwork into
Row redesigns, using the heat exchanger tube with honeycomb pipe-wall structure as heat exchanger components；The structure can realize that enhanced heat exchange mitigates
The purpose of dust stratification ensure that the Effec-tive Function of air preheater, improve boiler operating efficiency, there is important economic benefit.
In order to achieve the above object, the present invention is achieved through the following technical solutions：
It is a kind of with honeycomb heat exchanger tube from deashing air preheater, the air preheater is the honeycomb of tubular structure
Heat exchanger tube, the honeycomb heat exchanger tube use honeycomb pipe-wall, are air side on the inside of honeycomb heat exchanger tube, outside is fume side.
The tube wall of the honeycomb heat exchanger tube is covered with cellular pit, and pit can be used in-line arrangement, stagger arrangement can also be used
Arrangement.
The honeycomb heat exchanger tube is metal material, and the manufacture of carbon steel or stainless steel can be used, and pipe thickness is 1mm~5mm.
The cellular pit is circular or hexagon, is stamped to form, can also be added using forging type using light pipe
Work forms.
Compared with prior art, the present invention has the following advantages：
1. the present invention can mitigate air preheater dust stratification by carrying the accumulatingdust air preheater of honeycomb pipe-wall, it is improved
Heat exchange efficiency reduces exhaust gas temperature.
2. the present invention saves air preheater material cost since the dosage of heat exchanger tube can be greatly decreased in the reinforcing of heat exchange.
3. the structure of the present invention is simple, easy for installation, reliable, investment cost is low.
4. the present invention can be not only used for new boiler design, the boiler improvement that puts into operation is also applied for.
Description of the drawings
Fig. 1 is the boiler erection structure diagram of the present invention.
Fig. 2 a are the schematic elevation view of the present invention.
Fig. 2 b are the schematic side view of the present invention.
Fig. 3 is the honeycomb heat exchanger tube schematic diagram of the present invention.
In figure：
4, cellular pit is surveyed in 1- heat exchanger tube 2- honeycomb pipe-wall 3- honeycomb ducts
Specific embodiment
The core of the present invention be propose it is a kind of with honeycomb heat exchanger tube from deashing air preheater, it is big in being applicable to
Type coal-burning boiler improves boiler efficiency by reducing dust stratification and enhanced heat exchange.Below in conjunction with drawings and examples to the present invention
It is described further.
Embodiment：
Boiler as shown in Figure 1 is back-end ductwork structure, and with superheater and economizer, flue bottom arrangement is with bee
The accumulatingdust air preheater of nest heat exchanger tube.
As shown in Fig. 2 a, Fig. 2 b and Fig. 3, with cellular recessed on the honeycomb pipe-wall 2 of the honeycomb heat exchanger tube 1 of air preheater
Hole 4.Flue gas enters above air preheater, by the outside of honeycomb heat exchanger tube 1, air from the inside of honeycomb heat exchanger tube 3 by, air with
Flue gas is exchanged heat by honeycomb heat exchanger tube 1.Since the pit of honeycomb heat exchange pipe surface can generate local eddy currents and then slow down tube wall
Dust stratification, while pit can increase tube wall heat exchange area, so as to improve heat exchange efficiency.
Particular embodiments described above has carried out the purpose of the present invention, technical solution and advantageous effect further in detail
It describes in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to limit the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the guarantor of the present invention
Within the scope of shield.
Claims (4)
1. it is a kind of with honeycomb heat exchanger tube from deashing air preheater, which is characterized in that the air preheater is tubular type
The honeycomb heat exchanger tube of structure, the honeycomb heat exchanger tube use honeycomb pipe-wall, are air side on the inside of honeycomb heat exchanger tube, outside is flue gas
Side.
2. as described in claim 1 with honeycomb heat exchanger tube from deashing air preheater, which is characterized in that the honeycomb changes
The tube wall of heat pipe is covered with cellular pit, and pit is arranged using in-line or arranged using stagger arrangement.
3. as claimed in claim 2 with honeycomb heat exchanger tube from deashing air preheater cellular pit, which is characterized in that
The cellular pit is circular or hexagon, is stamped to form using light pipe or is process using forging type.
4. as described in claim 1 with honeycomb heat exchanger tube from deashing air preheater, which is characterized in that the honeycomb changes
Heat pipe is metal material, is manufactured using carbon steel or stainless steel, and pipe thickness is 1mm~5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810061352.6A CN108061307A (en) | 2018-01-22 | 2018-01-22 | It is a kind of with honeycomb heat exchanger tube from deashing air preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810061352.6A CN108061307A (en) | 2018-01-22 | 2018-01-22 | It is a kind of with honeycomb heat exchanger tube from deashing air preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108061307A true CN108061307A (en) | 2018-05-22 |
Family
ID=62141878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810061352.6A Pending CN108061307A (en) | 2018-01-22 | 2018-01-22 | It is a kind of with honeycomb heat exchanger tube from deashing air preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108061307A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201034435Y (en) * | 2007-03-23 | 2008-03-12 | 江苏中圣高科技产业有限公司 | Low pressure-reduction highly effective heat transfer tube |
| CN104142081A (en) * | 2014-07-28 | 2014-11-12 | 中国华能集团清洁能源技术研究院有限公司 | Self-dust-removing heat exchanging pipe with outer honeycomb pipe wall |
| CN204007273U (en) * | 2014-07-28 | 2014-12-10 | 中国华能集团清洁能源技术研究院有限公司 | A kind of novel from deashing heat exchanger tube with honeycomb outer tube wall |
| CN104236364A (en) * | 2013-06-05 | 2014-12-24 | 马成果 | Air water heat exchange tube capable of enhancing heat exchange efficiency and reducing vibration |
| CN104344760A (en) * | 2013-07-26 | 2015-02-11 | 马成果 | Multifunctional gas-water heat exchange pipe capable of reducing accumulated dust, reducing vibration and improving heat exchange efficiency |
| US20160238324A1 (en) * | 2013-09-23 | 2016-08-18 | United Technologies Corporation | Method of generating support structure of tube components to become functional features |
| CN206540452U (en) * | 2017-02-06 | 2017-10-03 | 四川川锅科泰达能源技术有限公司 | A kind of spherical pit heat-transfer pipe |
-
2018
- 2018-01-22 CN CN201810061352.6A patent/CN108061307A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201034435Y (en) * | 2007-03-23 | 2008-03-12 | 江苏中圣高科技产业有限公司 | Low pressure-reduction highly effective heat transfer tube |
| CN104236364A (en) * | 2013-06-05 | 2014-12-24 | 马成果 | Air water heat exchange tube capable of enhancing heat exchange efficiency and reducing vibration |
| CN104344760A (en) * | 2013-07-26 | 2015-02-11 | 马成果 | Multifunctional gas-water heat exchange pipe capable of reducing accumulated dust, reducing vibration and improving heat exchange efficiency |
| US20160238324A1 (en) * | 2013-09-23 | 2016-08-18 | United Technologies Corporation | Method of generating support structure of tube components to become functional features |
| CN104142081A (en) * | 2014-07-28 | 2014-11-12 | 中国华能集团清洁能源技术研究院有限公司 | Self-dust-removing heat exchanging pipe with outer honeycomb pipe wall |
| CN204007273U (en) * | 2014-07-28 | 2014-12-10 | 中国华能集团清洁能源技术研究院有限公司 | A kind of novel from deashing heat exchanger tube with honeycomb outer tube wall |
| CN206540452U (en) * | 2017-02-06 | 2017-10-03 | 四川川锅科泰达能源技术有限公司 | A kind of spherical pit heat-transfer pipe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201396742Y (en) | Novel high-efficiency horizontal fuel/gas steam boiler with shell-and-tube economizer | |
| CN104633647A (en) | Emission reduction and energy saving system capable of omitting GGH | |
| CN203364100U (en) | Angle pipe type coal powder boiler with overhead combustors | |
| CN106016719A (en) | Efficient boiler with double auxiliary combustion furnaces | |
| CN205878964U (en) | Heat exchanger for waste heat recovery | |
| CN106969370B (en) | A kind of emptying structure changes flue gas waste heat recoverer of three-dimensional | |
| CN108061307A (en) | It is a kind of with honeycomb heat exchanger tube from deashing air preheater | |
| CN202791953U (en) | Water pipe type condensation superheating steam generator | |
| CN205825011U (en) | A kind of fluidized-bed combustion boiler environment protecting power economizer | |
| CN208074923U (en) | Horizontal boiler for heating water | |
| CN204042961U (en) | The condensing heat-pipe air preheater that a kind of natural gas boiler vertical well gas flue is arranged | |
| CN203615313U (en) | LHH-type vertical-type multi-pass steam boiler | |
| CN202852786U (en) | Waste heat boiler tail portion heat exchange face improved structure | |
| CN206274230U (en) | A kind of superconduction fluidised form heat exchanger | |
| CN207394808U (en) | Horizontal tube bundle heating surface device and fuel combination boiler | |
| CN206018697U (en) | Anti-corrosion type tube case of air preheater | |
| CN205388306U (en) | Novel low -temperature coal economizer | |
| CN201621671U (en) | Tunnel-type exhaust-heat boiler | |
| CN202791952U (en) | Water pipe type condensation saturation steam generator | |
| CN204084325U (en) | A kind of reduction of discharging energy conserving system cancelling GGH | |
| CN102788343A (en) | Water tube type condensation and saturation steam boiler | |
| CN203323095U (en) | Novel analytical gas boiler | |
| CN203757756U (en) | Energy-saving air pre-heater of boiler | |
| CN211667823U (en) | Hearth heat energy recycling device | |
| CN202253546U (en) | Flue-gas-waste-heat-recovery finned-tube waste heat boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180522 |