CN209495455U - Double air intake swirl injection top combustion stoves with mixed air vessel - Google Patents
Double air intake swirl injection top combustion stoves with mixed air vessel Download PDFInfo
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- CN209495455U CN209495455U CN201920164118.6U CN201920164118U CN209495455U CN 209495455 U CN209495455 U CN 209495455U CN 201920164118 U CN201920164118 U CN 201920164118U CN 209495455 U CN209495455 U CN 209495455U
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Abstract
The utility model relates to double air intake swirl injection top combustion stoves with mixed air vessel, it is uneven effectively to solve gas mixing, burns insufficient, and heat utilization rate is low and pollution problem to environment.Burner is mounted between furnace roof and furnace body, furnace roof lower part is combustion chamber, there is coal gas circuit at middle part in burner wall, there are the first air circuit on top and the second air circuit of lower part in the wall of coal gas circuit upper and lower respectively, it is sequentially arranged with the first air inlet duct from top to bottom on one side vertical wall of burner body, gas inlet pipeline, second air inlet duct, first air inlet duct is vertically connected logical with the first air circuit, gas inlet pipeline is vertically connected logical with coal gas circuit, second air inlet duct is vertically connected logical with the second air circuit, constitute double inlet structures.The utility model is easy to install and use, and effect is good, and hot-blast stove air-flow is uniformly mixed, and flow field is stablized, and heat utilization rate is high, energy-saving, emission-reducing, environment friendly.
Description
Technical field
The utility model relates to hot-blast stove, especially a kind of double air intake swirl injection top ignitions with mixed air vessel
Hot-blast stove.
Background technique
Top combustion stove is common equipment in industrial production, and there are many multiplicity for existing hot-blast stove, but due in structure
There are the problem of, in use there are still such or such problem, especially now widely used top combustion stove, by
Be arranged on different sections in the coal gas and air nozzle of burner, and air intlet only one, and gas entry and
Gas nozzle is arranged on top, and such setting is easy to produce pinking, when the air door that precombustion chamber lower part is arranged in is opened,
The precombustion chamber eddy flow that the air of a large amount of 500 degree or so of preheating rapidly enters 1000 degree or so is run down, some air
Be full of precombustion chamber top, when gas valve open, a large amount of coal gas moment be full of into precombustion chamber eddy flow and under, the coal gas of lower part
Catch fire with air ignition, and the coal gas on top and air due to ignition condition is not achieved in concentration and the kindling that is delayed, form pinking and fire
Burn phenomenon.And the air-flow of high-speed motion prevent radially into air from penetrating into well, which results in coal gas
It is uneven in initial stage mixing with air, it burns insufficient, air coefficient is bigger than normal, and CO too high levels in exhaust gas can neither fill
Divide and utilize thermal energy, and increase the pollution probability to environment, this is runed counter to current energy-saving and emission-reduction requirement, therefore, on hot-blast stove
Improvement and innovation it is imperative.
Utility model content
For above situation, for the deficiency for overcoming the prior art, the purpose of the utility model is just to provide a kind of with mixed
The double air intake swirl injection top combustion stoves for closing gas chamber, it is uneven effectively to solve gas mixing, burns insufficient, hot
It can utilization rate be low and pollution problem to environment.
The technical solution that the utility model solves is a kind of double air intake swirl injection top ignitions with mixed air vessel
Hot-blast stove, including furnace roof, burner and furnace body, burner are mounted between furnace roof and furnace body, and furnace roof lower part is combustion chamber, described
Burner is made of the wall of outer heat insulation layer and outer heat insulation layer inner face, and there is a coal gas circuit at middle part in wall, above and below coal gas circuit
Have the first air circuit on top and the second air circuit of lower part respectively in the wall of side, on a side vertical wall of burner body from
The first air inlet duct, gas inlet pipeline, the second air inlet duct, the first air inlet duct are sequentially arranged under
Be vertically connected with the first air circuit it is logical, gas inlet pipeline be vertically connected with coal gas circuit it is logical, the second air inlet duct with
Second air circuit is vertically connected logical, the double inlet structures of composition, and middle part successively opens from top to down on the wall inner face
First air port, the second air port, the first gas port, the second gas port are provided with gaseous mixture in wall lower inner wall
Spout, the first air circuit are connected through the oblique jet pipe of wall intracorporal first with the first air port, and the first air circuit is through wall
Intracorporal second oblique jet pipe is connected with the second air port, and the second air circuit is through the intracorporal third air lance of wall and
One air gas mixing chamber is connected, and coal gas circuit is through the oblique jet pipe of the intracorporal third coal gas of wall and the second air gas mixing chamber
It is connected, the 4th oblique jet pipe of coal gas is connected with the intracorporal second air gas mixing chamber of wall, the 4th oblique jet pipe and second
Air gas mixing chamber is connected, the first air gas mixing chamber, the second air gas mixing chamber outlet with mix gas blowout
Mouth is connected.
The utility model structure novel is unique, and easy to produce, easy to install and use, effect is good, and hot-blast stove air-flow is uniformly mixed,
Flow field is stablized, and heat utilization rate is high, greatly reduces pollution of the hot-blast stove to environment, there is significant economic and social benefit.
Detailed description of the invention
Fig. 1 is the structural profile main view of the utility model.
Fig. 2 is the first air circuit position cross-sectional plan view of the utility model.
Fig. 3 is the coal gas circuit position cross-sectional plan view of the utility model.
Specific embodiment
It elaborates below in conjunction with attached drawing to specific embodiment of the present utility model.
As shown in Fig. 1-3, a kind of double air intake swirl injection top ignition hot winds with mixed air vessel of the utility model
Furnace, including furnace roof, burner and furnace body, burner are mounted between furnace roof 10 and furnace body, and furnace roof lower part is combustion chamber 11, described
Burner is made of the wall 8 of outer heat insulation layer 1 and outer heat insulation layer inner face, and there are coal gas circuit 5, coal gas circuit in middle part in wall 8
There are the first air circuit 12 on top and the second air circuit 2 of lower part, the side of burner body in the wall of upper and lower respectively
It is sequentially arranged with the first air inlet duct 2-1, gas inlet pipeline 4, the second air inlet duct 2-2 from top to bottom on perpendicular wall,
First air inlet duct 2-1 is vertically connected logical, the phase vertical with coal gas circuit 5 of gas inlet pipeline 4 with the first air circuit 12
Connection, the second air inlet duct 2-2 are vertically connected logical, the double inlet structures of composition, the wall with the second air circuit 2
Middle part successively opens the first air port (mouth, the same below) 3-1, the second air port 3-2, the first coal from top to down on 8 inner faces
Gas blowout mouth (mouth, the same below) 6-1, the second gas port 6-2 are provided with gaseous mixture spout 13, the first air in wall lower inner wall
Circuit 12 is connected through the oblique jet pipe 7-1 of wall intracorporal first with the first air port 3-1, and the first air circuit 12 is through in wall
The second oblique jet pipe 7-2 be connected with the second air port 3-2, the second air circuit 2 is through the third air lance in wall 8
7-3 is connected with the first air gas mixing chamber 15-1, and coal gas circuit 5 is through the oblique jet pipe 9-3 of third coal gas and in wall 8
Two air gas mixing chamber 15-2 are connected, the second air gas mixing chamber in the oblique jet pipe 9-4 of the 4th coal gas and wall 8
15-2 is connected, and the 4th oblique jet pipe 7-4 is connected with the second air gas mixing chamber 15-2, the first air gas mixing chamber
The outlet of 15-1, the second air gas mixing chamber 15-2 are connected with gaseous mixture spout 13.
First air port 3-1, the second air port 3-2 is staggered uniformly distributed arrangement alternatively up and down.
First gas port 6-1, the second gas port 6-2 is staggered uniformly distributed arrangement alternatively up and down.
The first air port 3-1 and the first gas port 6-1 on same face directly, the second air port 3-2 and
Second gas port 6-2 is on same face directly.
The oblique jet pipe 7-1 of described first, the second oblique jet pipe 7-2 are tilted down from 12 end of the first air circuit, point
It is not connected with the first air port 3-1, the second air port 3-2.
The oblique jet pipe 9-1 of first coal gas, the oblique jet pipe 9-2 of the second coal gas are tilted from 5 end of coal gas circuit upwards,
It is connected respectively with the first gas port 6-1, the second gas port 6-2.
The first air gas mixing chamber 15-1 and the second air gas mixing chamber 15-2 bilateral symmetry in wall,
Third air lance 7-3 is tilted upwards to be connected to the first air gas mixing chamber 15-1, and the oblique jet pipe 9-3 of third coal gas dips down
Tiltedly it is connected with the first air gas mixing chamber 15-1, the oblique jet pipe 9-4 of the 4th coal gas tilts down mixed with the second air gas
It closes room 15-2 to be connected, the 4th oblique jet pipe 7-4 is tilted upwards to be connected to the second air gas mixing chamber 15-2, and bilateral symmetry
It is placed in wall.
In use, replacing original burner with the utility model, i.e., the burner of the utility model is mounted in 10 He of furnace roof
Between furnace body 14,10 lower part of furnace roof constitutes combustion chamber 11, sliding connection (original connection in labyrinth between burner body lower part and furnace body
Mode), other are compared with top combustion stove.
From the above, it is seen that the utility model lies in that the improvement and innovation on burner structure, burner is used
Top is air circuit and air nozzle, and middle part is coal gas circuit and gas nozzle, and lower part is using mixed air vessel and mixing gas blowout
Mouth, with 70% air capacity and circuit, top, coal gas and the gas nozzle that pre-burning chamber is arranged in air nozzle are arranged in precombustion chamber
The lowest part of pre-chamber cavity is arranged in chamber middle part, the circuit of 30% air capacity and air nozzle, air, gas burner can be shortened
More, simultaneously because lower part is provided with the more dense small mixing nozzle of the more short-flame of interior premix, the small plume burning of generation is swollen
It is swollen that gas is accelerated to play the mixed firinor fuel burning that closing choked flow top flue gas stops the longer time in precombustion chamber, avoid gas nozzle pinking
Burning and supply air temperature difference are greatly reduced in damage, and air excess system reduces, and the nitride and carbide content of generation are small.
The innovation of the utility model is that the improvement to burner in structure, is in original top combustion stove
Gas nozzle is arranged on burner body by improvement and innovation on burner in the form of 2 rows, and gas nozzle divides up and down
It is not connected with slanting gas-jet tube with coal gas circuit and obliquely sprays；Air port is arranged in coal in the form of 2 rows
The top of gas jets, and obliquely spray, gaseous mixture spout is set below gas port, and the main purpose being arranged in this way is
Gas port and air port have certain inclination angle upward or downward with the center line and horizontal direction of burner body, but refer both to
To the center of burner, the coal gas jet stream tilted upward in this way just mixes and is formed with air jet a kind of flow field structure, that is, revolves
Enter the precombustion chamber above combustion chamber after in steering, then rotate downwards, between there are strong heat and mass exchange, form one
A great flow regime of turbulence intensity.Such flow field structure is conducive to being sufficiently mixed, preheating kindling for air and coal gas, and
Flameholding greatly improves combustion intensity, since gas nozzle and air nozzle are that even laminating is arranged in respective channel
On ring section on, considerably increase the mixing probability of coal gas and air, shorten the mixing time used, be advantageously implemented
Air and the full and uniform mixing of coal gas；Since the upper-lower interactive of swirling eddy acts on, it is steady that eddy flow mixing, flame has been effectively ensured
Fixed and high-intensity combustion；Flue gas after full combustion is downwardly into regenerative chamber, will not be on heat storage there is a phenomenon where burning, i.e.,
Make also to be less prone to above-mentioned phenomenon at high load conditions；The abundant content for directly reducing the CO in exhaust gas of burning.And it passes through
Site test and test, flame stabilization, utilization rate of heat value is high, and 10% or more utilization rate can be improved, and CO discharge amount reduces 50% or more,
It is to be truly realized energy-saving, emission-reducing, environment friendly, there is significant economic and social benefit.
Claims (7)
1. a kind of double air intake swirl injection top combustion stoves with mixed air vessel, including furnace roof, burner and furnace body,
It is characterized in that, burner be mounted between furnace roof (10) and furnace body, furnace roof lower part be combustion chamber (11), the burner be by
The wall (8) of outer heat insulation layer (1) and outer heat insulation layer inner face is constituted, and there is coal gas circuit (5) middle part in wall (8), on coal gas circuit
There are the first air circuit (12) on top and the second air circuit (2) of lower part in the wall of lower section respectively, the one of burner body
The first air inlet duct (2-1), gas inlet pipeline (4), the second air intlet pipe are sequentially arranged on side vertical wall from top to bottom
Road (2-2), the first air inlet duct (2-1) are vertically connected logical, gas inlet pipeline (4) and coal with the first air circuit (12)
Compression ring road (5) be vertically connected it is logical, the second air inlet duct (2-2) be vertically connected with the second air circuit (2) it is logical, constitute it is double into
Port configurations, middle part successively opens the first air port (3-1), the spray of the second air from top to down on the wall (8) inner face
Mouthful (3-2), the first gas port (6-1), the second gas port (6-2) are provided with gaseous mixture spout (13) in wall lower inner wall,
First air circuit (12) is connected through the oblique jet pipe (7-1) of wall intracorporal first with the first air port (3-1), the first air
Circuit (12) is connected through the oblique jet pipe (7-2) of wall intracorporal second with the second air port (3-2), the second air circuit (2)
It is connected through the third air lance (7-3) in wall (8) with the first air gas mixing chamber (15-1), coal gas circuit (5) warp
The oblique jet pipe of third coal gas (9-3) in wall (8) is connected with the second air gas mixing chamber (15-2), and the 4th coal gas is oblique
Jet pipe (9-4) is connected with the second air gas mixing chamber (15-2) in wall (8), the 4th oblique jet pipe (7-4) and second
Air gas mixing chamber (15-2) is connected, the first air gas mixing chamber (15-1), the second air gas mixing chamber (15-2)
Outlet be connected with gaseous mixture spout (13).
2. double air intake swirl injection top combustion stoves according to claim 1 with mixed air vessel, feature
It is, first air port (3-1), the second air port (3-2) are staggered uniformly distributed arrangement alternatively up and down.
3. double air intake swirl injection top combustion stoves according to claim 1 with mixed air vessel, feature
It is, first gas port (6-1), the second gas port (6-2) are staggered uniformly distributed arrangement alternatively up and down.
4. double air intake swirl injection top combustion stoves according to claim 1 with mixed air vessel, feature
It is, first air port (3-1) and the first gas port (6-1) are on same face directly, the second air port (3-2)
With the second gas port (6-2) on same face directly.
5. double air intake swirl injection top combustion stoves according to claim 1 with mixed air vessel, feature
It is, the oblique jet pipe of described first (7-1), the second oblique jet pipe (7-2) tilt down from the first air circuit (12) end,
It is connected respectively with the first air port (3-1), the second air port (3-2).
6. double air intake swirl injection top combustion stoves according to claim 1 with mixed air vessel, feature
It is, the oblique jet pipe of the first coal gas (9-1), the oblique jet pipe of the second coal gas (9-2) are held from coal gas circuit (5) to updip
Tiltedly, it is connected respectively with the first gas port (6-1), the second gas port (6-2).
7. double air intake swirl injection top combustion stoves according to claim 1 with mixed air vessel, feature
It is, the first air gas mixing chamber (15-1) and the second air gas mixing chamber (15-2) left and right pair in wall
Claim, inclination is connected to third air lance (7-3) with the first air gas mixing chamber (15-1) upwards, the oblique jet pipe of third coal gas
(9-3) is tilted down to be connected with the first air gas mixing chamber (15-1), the 4th oblique jet pipe of coal gas (9-4) tilt down with
Second air gas mixing chamber (15-2) is connected, and the 4th oblique jet pipe (7-4) tilts and the second air gas mixing chamber upwards
(15-2) connection, and bilateral symmetry is placed in wall.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920164118.6U CN209495455U (en) | 2019-01-30 | 2019-01-30 | Double air intake swirl injection top combustion stoves with mixed air vessel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920164118.6U CN209495455U (en) | 2019-01-30 | 2019-01-30 | Double air intake swirl injection top combustion stoves with mixed air vessel |
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| CN209495455U true CN209495455U (en) | 2019-10-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111238034A (en) * | 2020-03-11 | 2020-06-05 | 郑州釜鼎热能技术有限公司 | Hot blast stove with strong rotational flow combustion in circulating semi-premixed heat accumulator |
-
2019
- 2019-01-30 CN CN201920164118.6U patent/CN209495455U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111238034A (en) * | 2020-03-11 | 2020-06-05 | 郑州釜鼎热能技术有限公司 | Hot blast stove with strong rotational flow combustion in circulating semi-premixed heat accumulator |
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