CN203671903U - Four-stroke-type coal-fired hot air furnace - Google Patents
Four-stroke-type coal-fired hot air furnace Download PDFInfo
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- CN203671903U CN203671903U CN201320705305.3U CN201320705305U CN203671903U CN 203671903 U CN203671903 U CN 203671903U CN 201320705305 U CN201320705305 U CN 201320705305U CN 203671903 U CN203671903 U CN 203671903U
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- exchanger tube
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- tube set
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Abstract
The utility model provides a four-stroke-type coal-fired hot air furnace. The furnace comprises a furnace body, a heat exchanger and a smoke bridge, wherein the smoke bridge is horizontally arranged above the furnace body and the heat exchanger, the furnace body is communicated with the heat exchanger through the smoke bridge, the heat exchanger comprises a first heat exchanger tube set, a second heat exchanger tube set, a third heat exchanger tube set and a fourth heat exchanger tube set, the first heat exchanger tube set, the second heat exchanger tube set, the third heat exchanger tube set and the fourth heat exchanger tube set are vertically distributed, the bottom of the first heat exchanger tube set is communicated with the bottom of the second heat exchanger tube set, the top of the second heat exchanger tube set is communicated with the top of the third heat exchanger tube set, and the bottom of the third heat exchanger tube set is communicated with the bottom of the fourth heat exchanger tube set. The service life of the four-stroke-type coal-fired hot air furnace is prolonged, the frosting and ice blocking phenomena of a smoke pipeline are avoided, and the furnace has the advantages of being simple in structure, reliable in work, low in smoke temperature, high in heat efficiency and the like.
Description
Technical field
The utility model relates to air heating equipment, refers to especially a kind of four lines formula coal-fired hot-blast stove.
Background technology
According to the needs of all kinds of grain driers, be equipped with efficient, reduction of discharging, energy-conservation hot-blast stove is absolutely necessary, the appearance of especially large-scale grain drier, provides the guarantee of grain security storage.And traditional hot-blast stove is owing to there is no the repeatedly utilization of flue gas, cause the cigarette temperature of discharge too high, so do not have again effective settlement measurement can not realize well the heat exchange of flue gas and air, therefore there is the problem wasting energy, do not meet the requirement of current energy-saving and emission-reduction.
Utility model content
The utility model proposes a kind of four lines formula coal-fired hot-blast stove, solved hot-blast stove in prior art and had the problem wasting energy.
The technical solution of the utility model is achieved in that
Four lines formula coal-fired hot-blast stove, comprise: body of heater, heat exchanger and Yan Qiao, cigarette bridge is flatly arranged on the top of body of heater and heat exchanger, body of heater and heat exchanger are logical by cigarette bridging, heat exchanger comprises the first heat exchanger tube group, the second heat exchanger tube group, the 3rd heat exchanger tube group and the 4th heat exchanger tube group of vertical arrangement, the first heat exchanger tube group bottom communicates with the second heat exchanger tube group bottom, the second heat exchanger tube group top communicates with the 3rd heat exchanger tube group top, and the 3rd heat exchanger tube group bottom communicates with the 4th heat exchanger tube group bottom.
Preferably, the second heat exchanger tube group and the 3rd heat exchanger tube group top are provided with upper smoke box, and the first heat exchanger tube group and the second heat exchanger tube group bottom and the 3rd heat exchanger tube group and the 4th heat exchanger tube group bottom are equipped with lower smoke box and shoot door.
Preferably, heat exchanger is finned tube exchanger or the perpendicular tubular heat exchanger of putting.
Preferably, heat exchanger is Steel Pipe Heat Exchanger.
Preferably, the both sides of heat exchanger are respectively air outlet and air inlet.
The utility model burns the rear high-temperature flue gas producing after ash fall, then enters in heat exchanger through cigarette bridge, and behind four groups of heat transfer zone, low-temperature flue gas, under the effect of air-introduced machine, is discharged into atmosphere by exhanst gas outlet.When cold air is outside through heat exchanger tube, become hot-air by tube wall heating, dry grain or other material with the hot blast that this clean hot-air forms, both can realize the indirect drying of hot blast, material drying is polluted avoiding.
In heat exchanger, be provided with four groups of heat exchange zones, improved service life, can greatly improve the thermal efficiency of the utility model hot-blast stove, avoided flue to produce dewfall, the stifled phenomenon of ice.Have that structure cylinder list, reliable operation, flue-gas temperature are low, thermal efficiency advantages of higher.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is front view of the present utility model;
Fig. 2 is side view of the present utility model;
Fig. 3 is internal structure schematic diagram of the present utility model.
In figure:
1, body of heater; 2, Yan Qiao; 3, heat exchanger; 4, air inlet; 5, air outlet; 6, smoke inlet; 7, pillar; 8, shoot door; 9, lower smoke box; 10, heat exchanger; 11, upper smoke box; 12, exhanst gas outlet; 13, the first heat exchanger tube group; 14, the second heat exchanger tube group; 15, the 3rd heat exchanger tube group; 16, the 4th heat exchanger tube group.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Fig. 1-3 are common, four lines formula coal-fired hot-blast stove of the present utility model, comprise body of heater 1 and heat exchanger 3, body of heater 1 adopts Plate Welding to make, the top of body of heater 1 and heat exchanger 3 is provided with cigarette bridge 2, body of heater 1 and heat exchanger 3 are communicated with by cigarette bridge 2, heat exchanger 3 is four-stroke heat exchanger, one end of heat exchanger 3 is air inlet 4, the other end of heat exchanger 3 is air outlet 5, air inlet 4 is connected with blower fan by air channel, coal-fired hot-blast stove also comprises combustion chamber, the exhanst gas outlet of combustion chamber is connected with the smoke inlet of cigarette bridge, on cigarette bridge, be also provided with exhanst gas outlet, be connected with the smoke inlet 6 on heat exchanger 3, on heat exchanger 3, be also provided with upper smoke box 11, exhanst gas outlet 12, lower smoke box 9, shoot door 8 and air outlet 5, also comprise bellows, combustion blower, smoke induced draught fan and hot blast pressure fan.Heat exchanger 3 comprises multiple pillars 7 and heat exchanger 10, and heat exchanger 10 is vertically arranged, and heat exchanger 10 bottoms are provided with shoot door 8, preferably, heat exchanger 10 is for finned tube or perpendicularly put tubulation, and heat exchanger 10 adopts steel-pipe welding to make, and is provided with four groups of heat exchange zones in heat exchanger 3.
In body of heater 1, the coal-fired flue gas that forms high heat at stove chamber inner combustion, flue gas enters cigarette bridge 2 by upper furnace rapidly, the coal ash of large grain carries out sedimentation by deadweight, then, flue gas arrives the first heat exchanger tube group 13 inside, carry out heat exchange with cold air, after heat exchange, flue gas arrives the second heat exchanger tube group 14 bottoms by the first heat exchanger tube group 13 bottoms and enters the second heat exchanger tube group 14 inside, again carry out heat exchange with cold air, after heat exchange, flue gas arrives the 3rd heat exchanger tube group 15 tops by the second heat exchanger tube group 14 tops and enters the 3rd heat exchanger tube group 15 inside, carry out heat exchange for the third time with cold air, after heat exchange, flue gas arrives the 4th heat exchanger tube group 16 bottoms by the 3rd heat exchanger tube group 15 bottoms and enters the 4th heat exchanger tube group 16 inside, carry out last heat exchange with cold air, flue gas is after four-stroke heat exchange, by exhanst gas outlet 12 by air-introduced machine by smoke stack emission to atmosphere.
When work, constantly move backward with fire grate in coal seam, accepts the heat radiation in burner hearth, the stage such as completes successively preheating, be dried, catch fire, until after-flame, last cinder discharges out of the furnace through slag remover.The high-temperature flue gas producing after burning is after ash fall, again in cigarette bridge enters heat exchanger 3, behind four groups of heat transfer zone, low-temperature flue gas is discharged into atmosphere by air-introduced machine by exhanst gas outlet 12, cold air, in the time that over-heat-exchanger 10 pipe is outside, is become hot-air by tube wall heating, dries grain or other material with the hot blast that this clean hot-air forms, both can realize the indirect drying of hot blast, material drying polluted avoiding.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. four lines formula coal-fired hot-blast stove, it is characterized in that, comprise: body of heater, heat exchanger and Yan Qiao, described cigarette bridge is flatly arranged on the top of described body of heater and described heat exchanger, described body of heater and described heat exchanger are logical by described cigarette bridging, described heat exchanger comprises the first heat exchanger tube group of vertical arrangement, the second heat exchanger tube group, the 3rd heat exchanger tube group and the 4th heat exchanger tube group, described the first heat exchanger tube group bottom communicates with described the second heat exchanger tube group bottom, described the second heat exchanger tube group top communicates with described the 3rd heat exchanger tube group top, described the 3rd heat exchanger tube group bottom communicates with described the 4th heat exchanger tube group bottom.
2. four lines formula coal-fired hot-blast stove according to claim 1, it is characterized in that, described the second heat exchanger tube group and described the 3rd heat exchanger tube group top are provided with upper smoke box, and described the first heat exchanger tube group and described the second heat exchanger tube group bottom and described the 3rd heat exchanger tube group and described the 4th heat exchanger tube group bottom are equipped with lower smoke box and shoot door.
3. four lines formula coal-fired hot-blast stove according to claim 1, is characterized in that, described heat exchanger is finned tube exchanger or the perpendicular tubular heat exchanger of putting.
4. four lines formula coal-fired hot-blast stove according to claim 1, is characterized in that, described heat exchanger is Steel Pipe Heat Exchanger.
5. four lines formula coal-fired hot-blast stove according to claim 1, is characterized in that, the both sides of described heat exchanger are respectively air outlet and air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320705305.3U CN203671903U (en) | 2013-11-07 | 2013-11-07 | Four-stroke-type coal-fired hot air furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320705305.3U CN203671903U (en) | 2013-11-07 | 2013-11-07 | Four-stroke-type coal-fired hot air furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203671903U true CN203671903U (en) | 2014-06-25 |
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ID=50968192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320705305.3U Expired - Fee Related CN203671903U (en) | 2013-11-07 | 2013-11-07 | Four-stroke-type coal-fired hot air furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203671903U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423547A (en) * | 2015-12-22 | 2016-03-23 | 安徽中科自动化股份有限公司 | Efficient coal-burning hot-air furnace for grain drier |
| CN115751710A (en) * | 2022-11-03 | 2023-03-07 | 安徽谷源热能科技有限公司 | Heat recovery energy-saving living beings hot-blast furnace |
| WO2023222000A1 (en) * | 2022-05-20 | 2023-11-23 | 安徽辰宇机械科技有限公司 | Hot-blast stove heat source system used in cooperation with grain dryer |
-
2013
- 2013-11-07 CN CN201320705305.3U patent/CN203671903U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423547A (en) * | 2015-12-22 | 2016-03-23 | 安徽中科自动化股份有限公司 | Efficient coal-burning hot-air furnace for grain drier |
| WO2023222000A1 (en) * | 2022-05-20 | 2023-11-23 | 安徽辰宇机械科技有限公司 | Hot-blast stove heat source system used in cooperation with grain dryer |
| CN115751710A (en) * | 2022-11-03 | 2023-03-07 | 安徽谷源热能科技有限公司 | Heat recovery energy-saving living beings hot-blast furnace |
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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: 20140625 Termination date: 20181107 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |