CN202868975U - Long-service-life energy-saving coal hot air furnace - Google Patents
Long-service-life energy-saving coal hot air furnace Download PDFInfo
- Publication number
- CN202868975U CN202868975U CN 201220482799 CN201220482799U CN202868975U CN 202868975 U CN202868975 U CN 202868975U CN 201220482799 CN201220482799 CN 201220482799 CN 201220482799 U CN201220482799 U CN 201220482799U CN 202868975 U CN202868975 U CN 202868975U
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- flue
- outer sleeve
- sleeve chamber
- hot air
- communicated
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Abstract
The utility model relates to a long-service-life energy-saving coal hot air furnace. The long-service-life energy-saving coal hot air furnace comprises a furnace body and a heating sleeve, wherein the heating sleeve is arranged on the furnace body. The heating sleeve is composed of an outer sleeve cavity and an inner sleeve cavity, wherein the inner sleeve is communicated with the top portion of the outer sleeve cavity, an inner flue which is communicated with a furnace cavity through a flame path inside the inner sleeve cavity is arranged between the outer sleeve cavity and the inner sleeve cavity, and an outer flue which is communicated with the inner flue is arranged outside the outer sleeve cavity. Due to the fact that inner flue which is communicated with the furnace cavity through the flame path inside the inner sleeve cavity is arranged between the outer sleeve cavity and the inner sleeve cavity, and the outer flue which is communicated with the inner flue is arranged outside the outer sleeve cavity, heat exchange area of air and exhaust gas is enlarged, and heat efficiency of the hot air furnace is improved. The long-service-life energy-saving coal hot air furnace has the advantages of being simple in structure, quick in temperature rise, high in heat exchange efficiency, and capable of fully using heat energy.
Description
Technical field
The utility model relates to a kind of energy-saving heating equipment, specifically energy-saving coal hot air furnace of a kind of high life.
Background technology
Existing hot-blast stove mainly is to adopt at bottom of furnace body burner hearth to be set, the vertical heating muff of installing in the upper furnace.Because coal produces high-temperature flue gas at hearth combustion, flue gas enters heating muff and carries out heat exchange, and the flue gas after the heat exchange is discharged from chimney through flue.So burner hearth, chimney usually since excess Temperature burnt red, easily distortion, service life is very short.Moreover because furnace chamber is straight barrel type, directly go out from air outlet from the gas that air inlet is come in, the limited time of gas in burner hearth can not be heated fully, and high fume temperature, thermal loss are very large, and the thermal efficiency is low.
The utility model content
The purpose of this utility model just provides a kind of high life energy-saving coal hot air furnace, to solve existing the hot-blast stove short and low problem of the thermal efficiency in service life.
The utility model is achieved in that a kind of high life energy-saving coal hot air furnace, include body of heater and the heating muff that is arranged on the described body of heater, the inner sleeve chamber that described heating muff includes the outer sleeve chamber and is communicated with described outer sleeve top of chamber, be provided with the inner flue that is communicated with burner hearth by the quirk in the described inner sleeve chamber between described outer sleeve chamber and inner sleeve chamber, the arranged outside in described outer sleeve chamber has the external flue that is connected with described inner flue.
Two side in described outer sleeve chamber and inner sleeve chamber is staggeredly equipped with radiating tube.
Bottom in described outer sleeve chamber sets out the air port, is provided with chimney at described external flue and inner flue lower end, and described chimney is enclosed within the described air outlet.
Be connected with drying baker in described chimney lower end, be externally connected with air heat exchanger at described drying baker, the hot-blast outlet of described air heat exchanger is connected with described burner hearth.
In the burner hearth of described body of heater, be provided with flame retardant coating.
The beneficial effect that the utility model is logical is:
1, the utility model is staggeredly equipped with radiating tube in the two side in outer sleeve chamber and inner sleeve chamber, this radiating tube the heat exchange area that has increased heating muff is set, prolong the time of cold air in heating muff, gas is heated more fully, thereby improved the thermal efficiency of hot-blast stove.
2, chimney of the present utility model is enclosed within the air outlet, facilitates the use the air outlet hot blast and reduces stack temperature, has improved simultaneously the temperature of air outlet hot-air.
3, the utility model can connect drying baker below chimney, flue gas is led in the drying baker toast, to improve the utilization rate of flue gas.Simultaneously can outside drying baker, connect air heat exchanger, the fume afterheat that the air heat exchanger utilization is flowed out from baking box, with the cold air heating, the cold air temperature of process air heat exchanger can reach more than 50 °, and hot-air enters burner hearth from hot-blast outlet can make furnace temperature improve and then fuel saving.
4, the flame retardant coating made by refractory material at hearth inner lining of the utility model is to improve the service life of body of heater.
The utility model the outer sleeve chamber and with inner sleeve chamber that the outer sleeve top of chamber is communicated with between the inner flue that is communicated with burner hearth by the quirk in the inner sleeve chamber is set, the external flue that side is communicated with inner flue outside the outer sleeve chamber, the area that makes air and flue gas carry out heat exchange increases, and has improved the thermal efficiency of hot-blast stove.The utility model is simple in structure, quick heating, and heat exchange efficiency is high, takes full advantage of heat energy.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the structural representation of air heat exchanger.
Among the figure: 1, inner sleeve chamber, 2, quirk, 3, air outlet, 4, chimney, 5, inner flue, 6, the outer sleeve chamber, 7, external flue, 8, radiating tube, 9, exhaust gases passes, 10, body of heater, 11, air heat exchanger, 12, hot-blast outlet, 13, the cold wind import.
The specific embodiment
As shown in Figure 1, the utility model includes body of heater 10 and the heating muff that is arranged on the body of heater 10, the inner sleeve chamber 1 that heating muff includes outer sleeve chamber 6 and is communicated with 6 tops, outer sleeve chamber.In order to accelerate the circulation of air, can connect air-heater at the heating muff top, 1 carries air to be heated to the inner sleeve chamber.Air to be heated enters inner sleeve chamber 1, turns back upwards to enter outer sleeve chamber 6, turns back and discharges from the air outlet 3 that is arranged on 6 bottoms, outer sleeve chamber at last downwards.
As shown in Figure 2, the sidewall in outer sleeve chamber 6 and inner sleeve chamber 1 is provided with radiating tube 8, and wherein, the radiating tube 8 of 1 two side, inner sleeve chamber is crisscross arranged.Radiating tube 8 the heat exchange area that has increased heating muff is set, prolonged the time of cold air in heating muff, gas is heated more fully, thereby improves the thermal efficiency of hot-blast stove.
In inner sleeve chamber 1, be evenly equipped with quirk 2, so that flue gas is in the inner flue 5 between outer sleeve chamber 6 and the inner sleeve chamber 1, and in the outer sleeve chamber 6 arranged outside external flues 7, be provided with flue gas between external flue 7 and the inner flue 5 by mouth, carry out heat exchange by external flue 7 and 5 pairs of outer sleeve chambeies of inner flue 6 and air in the inner sleeve chamber 1, the flue gas that carries out after the heat exchange is discharged flue gas from the chimney 4 that is arranged on the flue bottom.This chimney 4 is enclosed within the air outlet 3, facilitates the use air outlet 3 hot blasts and reduces chimney 3 temperature, has improved simultaneously the temperature of air outlet 3 hot-airs.
In order to improve the utilization rate of the flue gas after the heat exchange, the flue gas after the heat exchange can be introduced drying bakers from chimney 3 and dry.Flue gas is connected with air heat exchanger 11 after going out drying baker, and as shown in Figure 3, this air heat exchanger 11 is rectangular structure, is provided with exhaust gases passes 9 in this air heat exchanger 11, and is provided with hot-blast outlet 12 and cold wind import 13.Wherein, hot-blast outlet 12 is connected with burner hearth, and air heat exchanger 11 utilizes fume afterheat, and with the cold air heating, the cold air temperature of process air heat exchanger 11 can reach more than 50 °, and hot-air enters burner hearth from hot-blast outlet 12 can make furnace temperature improve and then fuel saving.
In the burner hearth of body of heater 10, be provided with flame retardant coating, improved the service life of body of heater 10, reduced maintenance rate of the present utility model.
Claims (4)
1. high life energy-saving coal hot air furnace, include body of heater and the heating muff that is arranged on the described body of heater, it is characterized in that, the inner sleeve chamber that described heating muff includes the outer sleeve chamber and is communicated with described outer sleeve top of chamber, be provided with the inner flue that is communicated with burner hearth by the quirk in the described inner sleeve chamber between described outer sleeve chamber and inner sleeve chamber, the arranged outside in described outer sleeve chamber has the external flue that is connected with described inner flue.
2. high life energy-saving coal hot air furnace according to claim 1 is characterized in that, is staggeredly equipped with radiating tube in the two side in described outer sleeve chamber and inner sleeve chamber.
3. high life energy-saving coal hot air furnace according to claim 1 and 2 is characterized in that, sets out the air port in the bottom in described outer sleeve chamber, is provided with chimney at described external flue and inner flue lower end, and described chimney is enclosed within the described air outlet.
4. high life energy-saving coal hot air furnace according to claim 1 is characterized in that, is provided with flame retardant coating in the burner hearth of described body of heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220482799 CN202868975U (en) | 2012-09-21 | 2012-09-21 | Long-service-life energy-saving coal hot air furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220482799 CN202868975U (en) | 2012-09-21 | 2012-09-21 | Long-service-life energy-saving coal hot air furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202868975U true CN202868975U (en) | 2013-04-10 |
Family
ID=48035689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220482799 Expired - Fee Related CN202868975U (en) | 2012-09-21 | 2012-09-21 | Long-service-life energy-saving coal hot air furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202868975U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596098A (en) * | 2013-11-01 | 2015-05-06 | 青岛四季春节能环保设备有限公司 | Strong-hot energy-saving dust-free hot air boiler |
-
2012
- 2012-09-21 CN CN 201220482799 patent/CN202868975U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596098A (en) * | 2013-11-01 | 2015-05-06 | 青岛四季春节能环保设备有限公司 | Strong-hot energy-saving dust-free hot air boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20150921 |
|
| EXPY | Termination of patent right or utility model |