CN201637103U - Air heating furnace - Google Patents
Air heating furnace Download PDFInfo
- Publication number
- CN201637103U CN201637103U CN2010201404743U CN201020140474U CN201637103U CN 201637103 U CN201637103 U CN 201637103U CN 2010201404743 U CN2010201404743 U CN 2010201404743U CN 201020140474 U CN201020140474 U CN 201020140474U CN 201637103 U CN201637103 U CN 201637103U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- flow channel
- chimney
- tube
- air
- 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
Images
Abstract
The utility model disclose an air heating furnace, which comprises a coal-fired boiler and a flue heat exchanger, wherein a flue gas outlet of the coal-fired boiler is connected with a flue gas channel inlet of the flue heat exchanger, and a flue gas channel outlet of the flue heat exchanger is connected with a chimney; the flue heat exchanger is a multi-stage pipe bundle type heat exchanger, and each stage of the pipe bundle is vertically arranged in an overlapping way; heat exchange pipes are horizontally arranged, and flue gas channels are arranged between the heat exchange pipes; an air channel is arranged in the heat exchange pipe, and each stage of heat exchanger sequentially connects the air channels by connecting air boxes at the two ends of the pipe bundle; and a fan is connected with the air channel inlet of the flue heat exchanger through an air supply pipeline, and the air channel outlet of the flue heat exchanger is connected with a hot air pipeline. The heat exchange pipes of the air heating furnace can not accumulate dust and is easy to maintain.
Description
Technical field
The utility model relates to a kind of air heating plant, especially a kind of hot-blast stove that hot blast is provided for foodstuff drying device.
Background technology
Hot-blast stove is a kind of air heating plant that hot air source is provided for foodstuff drying device, usually constitute by boiler and heat exchanger two large divisions, utilize heat exchanger that high-temperature flue gas or the steam that boiler work produces is heated cold air, reach the purpose that produces hot blast, in order to improve the heat exchange efficiency of hot-blast stove, usually adopt the way that increases heat exchange process, CN2453328 discloses a kind of coal-fired hot-blast stove of three backhauls, but because the employing of the heat exchanger tube of three groups of heat exchangers of this hot-blast stove is horizontally disposed, being air flow channel between pipe, is the mode of high-temperature flue gas runner in the pipe, and the dust in the high-temperature flue gas accumulates in the heat exchanger tube easily, and be unfavorable for cleaning, influence the heat exchange effect.
The utility model content
The technical problem that utility model will solve is: a kind of hot-blast stove is provided, and the heat exchange pipeline of this hot-blast stove can not accumulate dust, and is easy to safeguard.
The technical scheme that the technical solution problem is adopted: a kind of hot-blast stove, comprise coal-burning boiler, chimney heat exchanger, the fire coal boiler fume outlet is connected with the flue gas flow channel inlet of chimney heat exchanger, the flue gas flow channel outlet of chimney heat exchanger connects chimney, described chimney heat exchanger is multistage bundled tube chimney heat exchanger, tube banks at different levels are stacked up and down, heat exchanger tube is horizontally disposed with, it between heat exchanger tube flue gas flow channel, in the heat exchanger tube is air flow channel, heat exchangers at different levels connect air flow channel in turn by the connection gas box at tube bank two ends, and blower fan is connected with the air flow channel inlet of chimney heat exchanger by air-supply pipeline, and the air flow channel outlet of chimney heat exchanger connects hot air duct.
As improvement of the present utility model: described chimney heat exchanger is 5 grades of bundled tube chimney heat exchangers, is inserted with spirality flow-disturbing insert in the heat exchanger tube of the heat exchanger of air flow channel arrival end.
As further improvement of the utility model: there is 0.8 millimeter aluminized coating on the heat exchanger tube surface of the heat exchanger of the air flow channel port of export.
Further improve as of the present utility model: the heat exchanger tube number of the tube banks at different levels of chimney heat exchanger increases progressively from top to bottom successively again.
Beneficial effect: in the utility model because to have adopted described chimney heat exchanger be multistage bundled tube chimney heat exchanger, tube banks at different levels are stacked up and down, heat exchanger tube is horizontally disposed with, it between heat exchanger tube flue gas flow channel, in the heat exchanger tube is air flow channel, heat exchangers at different levels connect air flow channel in turn by the connection gas box at tube bank two ends, blower fan is connected with the air flow channel inlet of chimney heat exchanger by air-supply pipeline, the air flow channel outlet of chimney heat exchanger connects hot air duct, make hot-blast stove of the present utility model in the course of the work, the dust of carrying secretly in the high-temperature flue gas can not accumulate in the heat exchanger tube, but discharge or be deposited in the heat exchanger below with tail gas, therefore, long-term use can be convenient to the maintenance of hot-blast stove because of dirt accumulation influences heat exchange efficiency; Because having adopted described chimney heat exchanger is 5 grades of bundled tube chimney heat exchangers, be inserted with the such technical characterictic of spirality flow-disturbing insert in the heat exchanger tube of the heat exchanger of air flow channel arrival end, make hot-blast stove waste heat recovery better effects if of the present utility model, heat exchange efficiency higher; Owing to adopted the heat exchanger tube surface of the heat exchanger of the air flow channel port of export that 0.8 millimeter aluminized coating is arranged, improved the high temperature resistant flue gas ability of heat exchanger, prolonged the service life of hot-blast stove; Because the technical characterictic that has adopted the heat exchanger tube number of the tube banks at different levels of chimney heat exchanger to increase progressively has successively from top to bottom overcome because the flow velocity that air heat causes after expanding is too fast, has improved heat exchange efficiency.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, a kind of hot-blast stove of the present utility model, comprise coal-burning boiler 1, chimney heat exchanger 3, the fire coal boiler fume outlet is connected with the flue gas flow channel inlet of chimney heat exchanger, the flue gas flow channel outlet of chimney heat exchanger connects chimney 2, described chimney heat exchanger is 5 grades of bundled tube chimney heat exchangers, tube banks at different levels are stacked up and down, heat exchanger tube 6 is horizontally disposed with, it between heat exchanger tube flue gas flow channel, in the heat exchanger tube is air flow channel, the connection gas box 4 of heat exchangers at different levels by restraining 5 two ends connects air flow channel in turn, blower fan 11 is connected with the air flow channel inlet 7 of chimney heat exchanger by air-supply pipeline 10, the air flow channel outlet 8 of chimney heat exchanger connects hot air duct 9, the heat exchanger tube of two-stage heat exchanger that is arranged in the air flow channel arrival end on heat exchanger top is inserted with spirality flow-disturbing insert, and there is 0.8 millimeter aluminized coating on the heat exchanger tube surface that is positioned at the two-stage heat exchanger of the heat exchanger bottom air flow channel port of export, and the heat exchanger tube number of the tube banks at different levels of chimney heat exchangers at different levels increases progressively from top to bottom successively.
Claims (4)
1. hot-blast stove, comprise coal-burning boiler (1), chimney heat exchanger (3), the fire coal boiler fume outlet is connected with the flue gas flow channel inlet of chimney heat exchanger, the flue gas flow channel outlet of chimney heat exchanger connects chimney (2), it is characterized in that: described chimney heat exchanger is multistage bundled tube chimney heat exchanger, tube banks at different levels (5) are stacked up and down, heat exchanger tube (6) is horizontally disposed with, it between heat exchanger tube flue gas flow channel, in the heat exchanger tube is air flow channel, heat exchangers at different levels connect air flow channel in turn by the connection gas box (4) at tube bank two ends, blower fan (11) is connected with the air flow channel inlet (7) of chimney heat exchanger by air-supply pipeline (10), and the air flow channel outlet (8) of chimney heat exchanger connects hot air duct (9).
2. a kind of hot-blast stove according to claim 1 is characterized in that: described chimney heat exchanger is 5 grades of bundled tube chimney heat exchangers, is inserted with spirality flow-disturbing insert in the heat exchanger tube of the two-stage heat exchanger of air flow channel inlet (7) end.
3. a kind of hot-blast stove according to claim 1 is characterized in that: there is 0.8 millimeter aluminized coating on the heat exchanger tube surface of the two-stage heat exchanger of air flow channel outlet (8) end.
4. a kind of hot-blast stove according to claim 1 is characterized in that: the heat exchanger tube number of the tube banks at different levels of chimney heat exchanger increases progressively from top to bottom successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201404743U CN201637103U (en) | 2010-03-25 | 2010-03-25 | Air heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201404743U CN201637103U (en) | 2010-03-25 | 2010-03-25 | Air heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201637103U true CN201637103U (en) | 2010-11-17 |
Family
ID=43081599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201404743U Expired - Fee Related CN201637103U (en) | 2010-03-25 | 2010-03-25 | Air heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201637103U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090534A (en) * | 2013-02-05 | 2013-05-08 | 张加清 | Hot blast stove |
| WO2017173802A1 (en) * | 2016-04-06 | 2017-10-12 | 北新集团建材股份有限公司 | System and method for recycling waste heat from drying machine |
-
2010
- 2010-03-25 CN CN2010201404743U patent/CN201637103U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090534A (en) * | 2013-02-05 | 2013-05-08 | 张加清 | Hot blast stove |
| CN103090534B (en) * | 2013-02-05 | 2015-05-27 | 张加清 | Hot blast stove |
| WO2017173802A1 (en) * | 2016-04-06 | 2017-10-12 | 北新集团建材股份有限公司 | System and method for recycling waste heat from drying machine |
| CN107263689A (en) * | 2016-04-06 | 2017-10-20 | 北新集团建材股份有限公司 | A kind of drying machine waste heat recycling system and method |
| CN107263689B (en) * | 2016-04-06 | 2019-10-29 | 北新集团建材股份有限公司 | A kind of drying machine waste heat recycling system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102759097A (en) | Boiler tail flue gas waste heat utilization system | |
| CN201519762U (en) | Heat pipe type ladle baking device | |
| CN202791972U (en) | Boiler tail flue gas waste heat utilization system | |
| CN101706109B (en) | Embedded deep cooler for boiler flue gas | |
| CN205878964U (en) | Heat exchanger for waste heat recovery | |
| CN203310092U (en) | Efficient heat energy recovery unit for waste heat in flue gas of water boiler | |
| CN201637103U (en) | Air heating furnace | |
| CN205690425U (en) | A kind of residual heat from boiler fume Multi-class propagation combines condensation water heating supply air system | |
| CN201513909U (en) | Boiler fume deep cooler | |
| CN108426458A (en) | A kind of glass furnace fume bypass system for desulfuration and denitration | |
| CN100520268C (en) | Fume-fume hot pipe heater exchanger for fume desulphurization in heat-engine plant | |
| CN203364410U (en) | Overhead air suction type heat exchanger structure | |
| CN202074556U (en) | Inserter combination type air preheater with same-temperature-difference jet flow at inlets and outlets of heat exchange tubes | |
| CN101813323B (en) | Insert type air preheater with same inlet-outlet temperature difference of heat exchange tubes | |
| CN103499141A (en) | Top air suction type heat exchange structure | |
| CN203869016U (en) | Heat exchange device of spirally corrugated tube at tail of industrial boiler | |
| CN202532445U (en) | High-efficiency anti-blocking superheater of waste heat boiler | |
| CN103245058B (en) | Micro-positive pressure combustion combined cooling energy-saving boiler | |
| CN205208615U (en) | Multistage system that utilizes of waste heat of boiler flue gas | |
| CN202002140U (en) | Forced circulation air preheating system | |
| CN206861870U (en) | A kind of high-efficiency energy-saving gas-fired boiler for having high temperature Water circulation | |
| CN205782834U (en) | A kind of residual heat from boiler fume utilizes combining heating system | |
| CN200955861Y (en) | Energy-saving high temperature hot air furnace | |
| CN104633921A (en) | Radial flow type combined heat transfer hot-blast stove | |
| CN204987072U (en) | Improve heat transfer device of boiler air inlet temperature |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20140325 |