CN204987457U - Barrel -shaped narrow slit whirlwind follows back heat transfer hot -blast furnace - Google Patents
Barrel -shaped narrow slit whirlwind follows back heat transfer hot -blast furnace Download PDFInfo
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- CN204987457U CN204987457U CN201520670783.4U CN201520670783U CN204987457U CN 204987457 U CN204987457 U CN 204987457U CN 201520670783 U CN201520670783 U CN 201520670783U CN 204987457 U CN204987457 U CN 204987457U
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Abstract
The utility model provides a barrel -shaped narrow slit whirlwind follows back heat transfer hot -blast furnace, furnace body locate furnace base top, are equipped with furnace, flue gas in the furnace body and follow go back to the chamber, and furnace body shell and flue gas follow go back to the first heat transfer room of narrow slit formation between the chamber, and the flue gas follows go back to clearance formation second heat transfer room between chamber and the furnace, C shape furnace base in be equipped with the flue, the flue middle part is equipped with the exhaust port, cavity formation preheating chamber between furnace base shell and the flue, preheating chamber one end is equipped with the air intake, preheating chamber and first heat transfer room intercommunication, flue follow go back to the chamber with the flue gas and communicate. The utility model provides a pair of barrel -shaped narrow slit whirlwind follows back heat transfer hot -blast furnace adopts the cubic to follow back the heat transfer technique, flows in the narrow slit of messenger's air in the multilayer structure furnace body, reduces air current thickness, increases heat transfer area, improves heat exchange efficiency, flue and the design of hot air duct mutual isolation avoid smoke pollution hot -blast. The utility model discloses simple structure, low cost, it is energy -concerving and environment -protective, effectively improve heat exchange efficiency, provide clean heat source for the stoving operation.
Description
Technical field
The utility model is a kind of middle-size and small-size energy-saving hot blast furnace for needing the oven dry operation of agricultural product or the industrial products of drying to provide clean thermal source, is specifically related to a kind of barrel-shaped narrow slit whirlwind and walks around to heat exchange hot-blast stove.
Background technology
Tradition indirect-heating hot-blast stove adopts two-layer telescoping structure usually, and flue gas top is in line, does not have circle flue, and utilize the outer disposable heat exchange of fin of burner hearth, though can save negative pressure smoke exhaust fan, structure is simple, and the thermal efficiency is lower, and firepower and temperature control insensitive; Also have the hot-blast stove adopting tubular heat exchanger heat exchange, the thermal efficiency is higher, but complex structure, acquisition cost is high, and tubulation place is easily blocked by flue dust, and the tubulation near flame easily occurs booster.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned the deficiencies in the prior art, provides a kind of barrel-shaped narrow slit whirlwind to walk around to heat exchange hot-blast stove, while raising heat exchange efficiency, avoid smoke contamination hot blast.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of barrel-shaped narrow slit whirlwind walks around to heat exchange hot-blast stove, comprise stove seat and body of heater, body of heater is located at above stove seat, described body of heater is hollow circular cylinder, burner hearth is provided with successively from the inside to the outside in body of heater, flue gas walks around to chamber, body of heater shell and flue gas walk around to narrow slit between chamber and form the first Heat Room, flue gas walks around to gap between chamber and burner hearth and forms the second Heat Room, described stove seat is C shape, flue is provided with in stove seat, exhaust opening is provided with in the middle part of flue, between stove seat shell and flue, cavity forms preheating chamber, preheating chamber one end is provided with air inlet, stove seat end face is along the circumferential direction evenly provided with multiple interior side opening and outer openings, preheating chamber is communicated with the first Heat Room by outer openings, flue and flue gas are walked around to chamber and are communicated with by interior side opening.
Described lower portion of furnace body side is provided with fuel inlet, and opposite side is provided with hot-blast outlet, and fuel inlet communicates with lower furnace portion, and the second Heat Room bottom communicates with hot-blast outlet, and below burner hearth, fuel combustion place is provided with furnace wall, and bottom of furnace body is provided with fire grate.
The screen cover of multilayer porous structure, particularly is provided with in the second described Heat Room.
Described burner hearth is hollow circular cylinder, and its top is along the circumferential direction evenly provided with multiple flue gas and walks around to passage, and flue gas walks around to passage and walks around to chamber with flue gas and be communicated with.
The first described Heat Room bottom is along the circumferential direction provided with multiple hot blast guiding flight.
Described flue gas walks around to top, chamber and is along the circumferential direction provided with multiple flue gas guiding flight.
Described fuel inlet place is provided with fire door.
Described stove seat is provided with ash discharging hole, and ash discharging hole is positioned at the C v notch v place of stove seat.
Described furnace wall adopts refractory material.
The barrel-shaped narrow slit whirlwind of the one that the utility model provides walks around to heat exchange hot-blast stove, adopts and walks around to heat transfer technology three times, flow in the narrow slit that the air in sandwich construction body of heater is formed between the layers, reduce air-flow thickness, increase heat exchange area, extend transfer path, improve heat exchange efficiency; Flue and the mutually isolated design of hot-flow flue, avoid smoke contamination hot blast, provides clean thermal source for drying operation.The utility model structure is simple, and with low cost, energy-conserving and environment-protective, effectively can improve heat exchange efficiency, provides clean thermal source for drying operation.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the B-B cut-away view of Fig. 1.
Fig. 3 is plan structure stereogram of the present utility model.
Fig. 4 of the present utility modelly looks up structural perspective
In Fig. 1-4: exhaust opening 1, hot-blast outlet 2, hot blast guiding flight 3, first Heat Room 4, second Heat Room 5, flue gas walks around to chamber 6, flue gas guiding flight 7, and flue gas walks around to passage 8, screen cover 9, body of heater 10, burner hearth 11, furnace wall 12, fuel inlet 13, ash discharging hole 14, fire grate 15, preheating chamber 16, flue 17, air inlet 18, fire door 19, stove seat 20.
Detailed description of the invention
A kind of barrel-shaped narrow slit whirlwind walks around to heat exchange hot-blast stove, comprise stove seat 20 and body of heater 10, body of heater 10 is located at above stove seat 20, described body of heater 10 is hollow circular cylinder, burner hearth 11 is provided with successively from the inside to the outside in body of heater 10, flue gas walks around to chamber 6, body of heater 10 shell and flue gas walk around to narrow slit between chamber 6 and form the first Heat Room 4, flue gas walks around to gap between chamber 6 and burner hearth 11 and forms the second Heat Room 5, described stove seat 20 is C shape, flue 17 is provided with in stove seat 20, exhaust opening 1 is provided with in the middle part of flue 17, between stove seat 20 shell and flue 17, cavity forms preheating chamber 16, preheating chamber 16 one end is provided with air inlet 18, stove seat 20 end face is along the circumferential direction evenly provided with multiple interior side opening and outer openings, preheating chamber 16 is communicated with the first Heat Room 4 by outer openings, flue 17 and flue gas are walked around to chamber 6 and are communicated with by interior side opening.
Structure thus, adopts and walks around to heat transfer technology three times, air is flowed by the narrow slit formed between layers in sandwich construction body of heater, reduces air-flow thickness, increases heat exchange area, extends transfer path, improves heat exchange efficiency; Flue and the mutually isolated design of hot-flow flue, avoid smoke contamination hot blast, provides clean thermal source for drying operation.
Described side, body of heater 10 bottom is provided with fuel inlet 13, opposite side is provided with hot-blast outlet 2, and fuel inlet 13 communicates with burner hearth 11 bottom, and the second Heat Room 5 bottom communicates with hot-blast outlet 2, below burner hearth 11, fuel combustion place is provided with furnace wall 12, is provided with fire grate 15 bottom body of heater 10.
The screen cover 9 of multilayer porous structure, particularly is provided with in the second described Heat Room 5.The design of porous screen fan housing 9, allows focused airflow pass aperture and becomes tiny uniform stream and be distributed in Heat Room, reduce wind speed, extend heat-exchange time, improve hot blast temperature and heat exchange efficiency.
Described burner hearth 11 is hollow circular cylinder, and its top is along the circumferential direction evenly provided with multiple flue gas and walks around to passage 8, and flue gas walks around to passage 8 and walks around to chamber 6 with flue gas and be communicated with.The flue gas of independent design walks around to chamber 6 and flue gas and walks around to passage 8 flue and hot-flow flue are isolated, and avoids hot blast by smoke pollution.
The first described Heat Room 4 bottom is along the circumferential direction provided with multiple hot blast guiding flight 3.
Described flue gas walks around to top, chamber 6 and is along the circumferential direction provided with multiple flue gas guiding flight 7.
The design of guiding flight allows air-flow helically move in annular passage, makes heat-transfer surface thermally equivalent, extends transfer path, improves heat exchange efficiency;
Described fuel inlet 13 place is provided with fire door 19.
Described stove seat 20 is provided with ash discharging hole 14, and ash discharging hole 14 is positioned at the C v notch v place of stove seat 20.
Described furnace wall 12 adopts refractory material.
The course of work of the present utility model is as follows:
First firewood or coal are added from fuel inlet 13, the combustion air entered for 15 times with fire grate mixes, in burner hearth 11 combustion, flame and high-temperature flue gas walk around to passage 8 by the flue gas that burner hearth 11 top along the circumferential direction distributes and enter flue gas and walk around to chamber 6, flue gas flue gas guiding flight 7 effect under annularly chamber helically move downward, homogeneous heating flue gas walks around to chamber wall; Tail gas after heating enters after flue in stove seat 17 and heating preheating chamber 16 through side opening in stove seat 20 end face is along the circumferential direction arranged, and is extracted out by negative-pressure air fan through exhaust opening 1, to make full use of heat energy, improves the thermal efficiency.Blower negative pressure size regulates by the air throttle be connected with blower fan, to adjust firepower size and hot blast temperature.
Subsequently, clean cold air, under malleation fan action, is pressed into stove seat preheating chamber 16 by air inlet 18, carries out first time heat exchange with the tail gas after burning through flue 17 outer wall; Air after preheating enters the first Heat Room 4 in body of heater 10 through the outer openings that stove seat 20 end face is along the circumferential direction evenly arranged, hot-air hot blast guiding flight 3 effect under annularly chamber helically move upward, uniform pickup flue gas walks around to the heat energy of chamber 6 outer wall, completes second time heat exchange.Due to cold wind action, stove seat 20 and body of heater 10 skin temperature are unlikely to too high, both decrease heat-energy losses, and in turn ensure that use safety.
Hot blast after second time heat exchange enters the interlayer of screen cover 9 through furnace roof, the second Heat Room 5 is entered through aperture uniform on screen cover 9, focused airflow is allowed to become the distribution of tiny uniform stream, reduce wind speed, extend heat-exchange time, inswept burner hearth 11 outer wall and flue gas walk around to chamber 6 inwall heat-transfer surface, complete third time heat exchange.
The clean hot blast of high temperature going through three heat exchange is discharged by hot-blast outlet 2, sends into the heating equipment such as bakery, baking oven through hot air duct.By the temperature sensor on hot-blast outlet, hot blast temperature is monitored, to adapt to the stoving process requirement of different product.
Claims (9)
1. a barrel-shaped narrow slit whirlwind walks around to heat exchange hot-blast stove, comprise stove seat (20) and body of heater (10), body of heater (10) is located at stove seat (20) top, it is characterized in that: described body of heater (10) is hollow circular cylinder, burner hearth (11) is provided with from the inside to the outside successively in body of heater (10), flue gas walks around to chamber (6), body of heater (10) shell and flue gas walk around to narrow slit between chamber (6) and form the first Heat Room (4), flue gas walks around to gap between chamber (6) and burner hearth (11) and forms the second Heat Room (5), described stove seat (20) is C shape, flue (17) is provided with in stove seat (20), flue (17) middle part is provided with exhaust opening (1), between stove seat (20) shell and flue (17), cavity forms preheating chamber (16), preheating chamber (16) one end is provided with air inlet (18), stove seat (20) end face is along the circumferential direction evenly provided with multiple interior side opening and outer openings, preheating chamber (16) is communicated with the first Heat Room (4) by outer openings, flue (17) and flue gas are walked around to chamber (6) and are communicated with by interior side opening.
2. the barrel-shaped narrow slit whirlwind of one according to claim 1 walks around to heat exchange hot-blast stove, it is characterized in that: described body of heater (10) side, bottom is provided with fuel inlet (13), opposite side is provided with hot-blast outlet (2), fuel inlet (13) communicates with burner hearth (11) bottom, second Heat Room (5) bottom communicates with hot-blast outlet (2), burner hearth (11) below fuel combustion place is provided with furnace wall (12), and body of heater (10) bottom is provided with fire grate (15).
3. the barrel-shaped narrow slit whirlwind of one according to claim 1 and 2 walks around to heat exchange hot-blast stove, it is characterized in that: the screen cover (9) being provided with multilayer porous structure, particularly in described the second Heat Room (5).
4. the barrel-shaped narrow slit whirlwind of one according to claim 1 walks around to heat exchange hot-blast stove, it is characterized in that: described burner hearth (11) is hollow circular cylinder, its top is along the circumferential direction evenly provided with multiple flue gas and walks around to passage (8), and flue gas walks around to passage (8) and walks around to chamber (6) with flue gas and be communicated with.
5. the barrel-shaped narrow slit whirlwind of one according to claim 1 walks around to heat exchange hot-blast stove, it is characterized in that: described the first Heat Room (4) bottom is along the circumferential direction provided with multiple hot blast guiding flight (3).
6. walk around to heat exchange hot-blast stove according to the barrel-shaped narrow slit whirlwind of the one described in claim 1 or 4, it is characterized in that: described flue gas walks around to chamber (6) top and is along the circumferential direction provided with multiple flue gas guiding flight (7).
7. the barrel-shaped narrow slit whirlwind of one according to claim 2 walks around to heat exchange hot-blast stove, it is characterized in that: described fuel inlet (13) place is provided with fire door (19).
8. the barrel-shaped narrow slit whirlwind of one according to claim 1 walks around to heat exchange hot-blast stove, it is characterized in that: described stove seat (20) is provided with ash discharging hole (14), and ash discharging hole (14) is positioned at the C v notch v place of stove seat (20).
9. the barrel-shaped narrow slit whirlwind of one according to claim 2 walks around to heat exchange hot-blast stove, it is characterized in that: described furnace wall (12) adopts refractory material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520670783.4U CN204987457U (en) | 2015-09-01 | 2015-09-01 | Barrel -shaped narrow slit whirlwind follows back heat transfer hot -blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520670783.4U CN204987457U (en) | 2015-09-01 | 2015-09-01 | Barrel -shaped narrow slit whirlwind follows back heat transfer hot -blast furnace |
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| CN204987457U true CN204987457U (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520670783.4U Active CN204987457U (en) | 2015-09-01 | 2015-09-01 | Barrel -shaped narrow slit whirlwind follows back heat transfer hot -blast furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841347A (en) * | 2016-05-27 | 2016-08-10 | 黄绍华 | Full-automatic baking oven machine |
| CN112013540A (en) * | 2020-09-08 | 2020-12-01 | 朱怀成 | Grain drier's fan structure and grain drying machine |
-
2015
- 2015-09-01 CN CN201520670783.4U patent/CN204987457U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841347A (en) * | 2016-05-27 | 2016-08-10 | 黄绍华 | Full-automatic baking oven machine |
| CN105841347B (en) * | 2016-05-27 | 2019-01-04 | 莱芜市兴隆机械有限公司 | A kind of full-automatic oven drying machine |
| CN112013540A (en) * | 2020-09-08 | 2020-12-01 | 朱怀成 | Grain drier's fan structure and grain drying machine |
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| GR01 | Patent grant |