CN210088834U - Boiler multistage combustion efficient heating device - Google Patents
Boiler multistage combustion efficient heating device Download PDFInfo
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- CN210088834U CN210088834U CN201920905768.1U CN201920905768U CN210088834U CN 210088834 U CN210088834 U CN 210088834U CN 201920905768 U CN201920905768 U CN 201920905768U CN 210088834 U CN210088834 U CN 210088834U
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model discloses a boiler multistage combustion high-efficiency heating device, which comprises a first combustion chamber, a second combustion chamber and a third combustion chamber; central pipes are arranged in the first combustion chamber, the second combustion chamber and the third combustion chamber; the first combustion chamber is connected with a primary feed inlet and a first hot air inlet, and a plurality of secondary air inlets are formed in the side wall of the first combustion chamber; the second combustion chamber is communicated with the first combustion chamber, a multi-stage feeding hole is formed in the second combustion chamber, and the multi-stage feeding hole is communicated with the second combustion chamber and the third combustion chamber; the second combustion chamber is connected with a second hot air inlet, and a tertiary air inlet is formed in the side wall of the second combustion chamber; the third combustion chamber is communicated with the second combustion chamber, and a fourth air inlet is formed in the side wall of the third combustion chamber; the utility model discloses a high temperature air is igniteed, and multiple ventilation, feed many times, multistage burning effectively improve fuel combustion efficiency, energy-concerving and environment-protective.
Description
Technical Field
The utility model belongs to multistage burning heating field especially relates to a high-efficient heating device of boiler multistage burning.
Background
The multi-stage combustion is to send fuel and air into different combustion chambers for combustion for many times in unequal amounts, so as to improve the combustion rate of the fuel, effectively reduce the emission of S, N compounds, reduce the pollution to the air and improve the environmental quality; however, most of the existing multi-stage combustion devices have insufficient fuel combustion, and the fly ash is blown out of a combustion chamber along with hot air, so that resource waste is caused to a certain extent, and the environment is polluted.
In the prior art, the following technical schemes are adopted for automatic processing:
chinese patent application 201520543177.6 discloses a multi-stage combustion type hot water boiler, which is characterized in that: the multi-stage combustion type hot water boiler comprises a shell, a water interlayer, a combustion chamber, a smoke and fire channel and a slag layer, wherein the water interlayer, the combustion chamber and the smoke and fire channel are assembled in the shell, the water interlayer is positioned between the inner wall of the shell and the smoke and fire channel, the bottom of the combustion chamber is assembled with the slag layer, the upper end of the combustion chamber is assembled with the lower end of the smoke and fire channel, a cigarette holder is assembled at the upper end of the smoke and fire channel, the smoke and fire channel is of an S-shaped bent structure, and the cigarette holder is fixedly installed at the upper end of the shell. The utility model discloses a structure of flue is the design of the crooked column structure of S type, has increased the area of contact of flue with water, has improved the utilization ratio of coal-fired for the speed of heat transfer and heat supply has obtained the improvement, still can adopt the burning that fuel such as burning timber replaced the coal.
The Chinese patent application 200910208953.6 discloses a multi-stage burner, which comprises a furnace body, a first-stage combustion chamber arranged in the furnace body, and a feed inlet and an ash removal port which are arranged on the furnace body; the furnace body is also internally provided with at least one auxiliary combustion chamber communicated with the primary combustion chamber, and an auxiliary combustion medium in the auxiliary combustion chamber is a high-temperature resistant material; the novel energy-saving combustion-cleaning device has the advantages of simple structure, energy conservation, environmental protection, high economic and social benefits and is a milestone for clean combustion of the traditional energy source in the future.
However, in the prior art, the combustible is directly ignited to realize combustion heating by an ignition mode without adopting multi-stage combustion, so that sufficient combustion of fuel cannot be guaranteed, the combustion rate of the fuel is low, and the heating efficiency is low.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model aims to provide a high-efficient heating device of boiler multistage burning through setting up a plurality of combustion chambers, ignites through the high temperature air, and multiple ventilation, feed many times, multistage burning effectively improves fuel combustion efficiency, energy-concerving and environment-protective.
The utility model provides a following technical scheme:
a boiler multistage combustion efficient heating device comprises a first combustion chamber, a second combustion chamber and a third combustion chamber; central pipes are arranged in the first combustion chamber, the second combustion chamber and the third combustion chamber; the first combustion chamber is connected with a primary feed inlet and a first hot air inlet, and a plurality of secondary air inlets are formed in the side wall of the first combustion chamber; the second combustion chamber is communicated with the first combustion chamber, a multi-stage feeding hole is formed in the second combustion chamber, and the multi-stage feeding hole is communicated with the second combustion chamber and the third combustion chamber; the second combustion chamber is connected with a second hot air inlet, and a tertiary air inlet is formed in the side wall of the second combustion chamber; the third combustion chamber is communicated with the second combustion chamber, and a fourth air inlet is formed in the side wall of the third combustion chamber.
Preferably, the central tube is a high-temperature-resistant corundum tube, and asbestos cord fillers are arranged on the inner wall of the combustion chamber.
Preferably, the primary air flow of the cold coal powder entering the primary feed port is used as a central jet flow, the cold coal powder is mixed with the high-temperature air jet flow of the first hot air inlet and enters the central pipe, after the cold coal powder is ignited by the primary combustion chamber, the secondary air inlet is connected with a blower and is fed into secondary tangential wind, most of the area close to the wall of the central pipe is positive-flow directional wind, a reverse flow area can be formed on the inner wall of the first combustion chamber of the secondary air inlet, and the coal powder particles are formed in the combustion chamber to circulate along the axial direction in the reverse flow area, so that a vortex is formed, and the combustion efficiency of the coal; then the pulverized coal enters the secondary combustion chamber, high-temperature air is introduced again through the second hot air inlet, tertiary tangential wind is fed through the tertiary air inlet, then the pulverized coal is fed into the tertiary combustion chamber, the amount of the pulverized coal particles entering is controlled through the second feeding adjusting valve, and quaternary tangential wind is introduced through the quaternary air inlet, so that the pulverized coal particles are fully combusted, and the heat energy utilization rate is effectively improved.
Preferably, the mass of the introduced coal powder in the primary combustion chamber is Ga1The mass of the pulverized coal introduced into the secondary combustion chamber is Ga2The mass of the pulverized coal introduced into the three-stage combustion chamber is Ga3(ii) a The mass of air introduced into the primary combustion chamber is Gf1The mass of air introduced into the secondary combustion chamber is Gf2The mass of air introduced into the three-stage combustion chamber is Gf3(ii) a The pulverized coal combustion efficiency μ satisfies the following formula:
μ＝(Ga1+Ga2+Ga3)*H*β/(Gf1+Gf2+Gf3)+(Ga1+Ga2+Ga3)；
in the above formula, the unit of the coal powder mass and the air mass are kg, H is the coal powder heat productivity in KJ, and β is the fuel coefficient constant.
The formula can effectively judge the combustion efficiency of the pulverized coal, change the air quality and pulverized coal mass ratio, achieve the complete combustion of the pulverized coal, and improve the combustion efficiency of the pulverized coal.
Preferably, the first hot air inlet is connected with an L-shaped first high-temperature-resistant pipeline which leads to the inside of the first combustion chamber, the high-temperature-resistant pipeline is provided with a plurality of first hot air nozzles, and the first hot air nozzles are cylindrical and hollow; the second hot air inlet is connected with a second high-temperature resistant pipeline to lead to the second combustion chamber and the third combustion chamber, and the second high-temperature resistant pipeline is provided with a plurality of second hot air nozzles which are hollow cylindrical.
Preferably, a first feeding adjusting valve is arranged at the position where the multi-stage feeding hole is connected with the second combustion chamber, and a second feeding adjusting valve is arranged at the position where the multi-stage feeding hole is connected with the third combustion chamber.
Preferably, the second combustion chamber is provided with a plurality of temperature measuring couples, the temperature measuring couples penetrate through the side wall of the combustion chamber, are close to the central pipe and measure the axial temperature of the second combustion chamber, and the temperature measuring couples are connected with a data acquisition instrument through a lead.
Preferably, the third combustion chamber is provided with a temperature measuring couple and an eight-shaped flame jet.
Preferably, the primary feed port is connected with a primary powder feeder, the primary powder feeder is connected with a flow meter, and the flow meter is connected with a high-pressure fan; the multi-stage feed inlet is connected with a multi-stage powder feeder.
Preferably, the secondary air inlet, the tertiary air inlet and the quaternary air inlet are connected with air blowers; the first hot air inlet is connected with an air heater, and the second hot air inlet is connected with an air heater.
In addition, the heating device mainly comprises the following components: 1. the feeding system is used for providing cold-state pulverized coal by the powder feeder; 2. the air supply system comprises a high-pressure fan, an air feeder and the like, wherein the air heater and the pulverized coal feeder are supplied with air by the high-pressure fan, and the air feeder is used for supplying air for multiple times; 3. the hot air heating system consists of a high-frequency power supply and an air heater; 4. the measuring system consists of a temperature measuring couple, a data acquisition unit HP34970B and a computer for storing data.
The heating device can be directly used for external heating of various furnace bodies, the furnace bodies are connected with a draught fan through a tail flue, and the draught fan is introduced into a chimney to discharge smoke through the chimney.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the utility model relates to a high-efficient heating device of multistage burning of boiler, through setting up the center tube, the combustion chamber lateral wall lets in the secondary and cuts the wind, forms the vortex with hot-blast, and fuel burning improves combustion efficiency with higher speed.
(2) The utility model relates to a high-efficient heating device of boiler multistage burning sets up a lot of ventilation, and a lot of feed, multistage burning can be effectively through adjusting the volume ratio that lets in fuel and air, guarantees the abundant burning of fuel, and heating efficiency is fast, and reduces exhaust emissions, less pollution.
(3) The utility model relates to a high-efficient heating device of multistage burning of boiler through setting up temperature monitoring, satisfies controlling under the condition of burning at the certain limit with the temperature in the combustion chamber, does benefit to abundant burning, reduces the harmful gas emission.
(4) The utility model relates to a high-efficient heating device of boiler multistage burning, mu ═ Ga1+Ga2+Ga3)*H*β/(Gf1+Gf2+Gf3)+(Ga1+Ga2+Ga3) The formula can effectively judge the combustion efficiency of the pulverized coal, change the air quality and pulverized coal mass ratio, achieve the complete combustion of the pulverized coal, and improve the combustion efficiency of the pulverized coal.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a plan view of the overall structure of the present invention.
Fig. 2 is a schematic view of the present invention.
Fig. 3 is a flow chart of the present invention.
In the figure: 1. a first combustion chamber; 2. a second combustion chamber; 3. a third combustion chamber; 4. A first-stage feed inlet; 5. a central tube; 6. a first hot air inlet; 7. a first hot air nozzle; 8. a secondary air inlet; 9. a multi-stage feed inlet; 10. a first feed regulating valve; 11. A second hot air inlet; 12. a second hot air nozzle; 13. a tertiary air inlet; 14. a temperature measuring couple; 15. a second feed regulating valve; 16. a fourth air inlet; 17. a flame port; 18. a high pressure fan; 19. a flow meter; 20. a first-stage powder feeder; 21. a multi-stage powder feeder; 22. an air heater; 23. a data acquisition instrument; 24. a blower; 25. A furnace body; 26. an induced draft fan; 27. and (4) a chimney.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention will be combined to clearly and completely describe the technical solutions of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The first embodiment is as follows:
a boiler multistage combustion high-efficiency heating device comprises a first combustion chamber 1, a second combustion chamber 2 and a third combustion chamber 3; central pipes 5 are arranged in the first combustion chamber 1, the second combustion chamber 2 and the third combustion chamber 3; the first combustion chamber 1 is connected with a primary feed port 4 and a first hot air inlet 6, and a plurality of secondary air inlets 8 are arranged on the side wall of the first combustion chamber 1; the second combustion chamber 2 is communicated with the first combustion chamber 1, the second combustion chamber 2 is provided with a multi-stage feeding hole 9, and the multi-stage feeding hole 9 is communicated with the second combustion chamber 2 and the third combustion chamber 3; the second combustion chamber 2 is connected with a second hot air inlet 11, and a tertiary air inlet 13 is formed in the side wall of the second combustion chamber; the third combustion chamber 3 is communicated with the second combustion chamber 2, and a four-time air inlet is formed in the side wall of the third combustion chamber 3; the central tube 5 is a high-temperature-resistant corundum tube, and asbestos rope fillers are arranged on the inner wall of the combustion chamber; through setting up center tube 5, the combustion chamber lateral wall lets in secondary tangential wind, forms the vortex with hot-blast, and fuel burning is accelerated, improves combustion efficiency.
The primary air flow of cold coal powder entering the primary feed port 4 is used as central jet flow, is mixed with the high-temperature air jet flow of the first hot air inlet 6, enters the central tube 5, is ignited through the primary combustion chamber, the secondary air inlet 8 is connected with the air feeder 24, and is fed into secondary tangential wind, most of the area close to the wall of the central tube 5 is positive directional wind, a reverse flow area can appear on the inner wall of the first combustion chamber 1 of the secondary air inlet 8, and the reverse flow area forms coal powder particles in the combustion chamber to circulate along the axial direction to form vortex, so that the combustion efficiency of the coal powder particles is improved; then the pulverized coal enters the secondary combustion chamber, high-temperature air is introduced again through the second hot air inlet 11, tertiary tangential air is fed through the tertiary air inlet 13, then the pulverized coal is fed into the tertiary combustion chamber, the pulverized coal particle entering amount is controlled through the second feeding adjusting valve 15, and quaternary tangential air is introduced through the quaternary air inlet 16, so that the pulverized coal particles are fully combusted, and the heat energy utilization rate is effectively improved.
The first hot air inlet 6 is connected with an L-shaped first high-temperature-resistant pipeline and leads to the inside of the first combustion chamber 1, a plurality of first hot air nozzles 7 are arranged on the high-temperature-resistant pipeline, and the first hot air nozzles 7 are cylindrical and hollow; the second hot air inlet 11 is connected with a second high temperature resistant pipeline leading to the second combustion chamber 2 and the third combustion chamber 3, and the second high temperature resistant pipeline is provided with a plurality of second hot air nozzles 12 which are hollow cylinders.
A first feeding adjusting valve 10 is arranged at the position where the multistage feeding hole 9 is connected with the second combustion chamber 2, and a second feeding adjusting valve 15 is arranged at the position where the multistage feeding hole is connected with the third combustion chamber 3; can effectively guarantee the abundant burning of fuel through adjusting the volume ratio of letting in fuel and air, heating efficiency is fast, and reduces exhaust emissions, less pollution.
The second combustion chamber 2 is provided with a plurality of temperature measuring couples 14, the temperature measuring couples 14 penetrate through the side wall of the combustion chamber, are close to the central pipe 5, measure the axial temperature of the second combustion chamber 2, and the temperature measuring couples 14 are connected with a data acquisition instrument 23 through conducting wires; the third combustion chamber 3 is provided with a temperature measuring couple 14 and an eight-shaped flame jet 17, and the flame jet 17 is aligned with a furnace body 25 to be heated when in use.
The primary feeding hole 4 is connected with a primary powder feeder 20, the primary powder feeder 20 is connected with a flowmeter 19, and the flowmeter 19 is connected with a high-pressure fan 18; the multi-stage feed inlet 9 is connected with a multi-stage powder feeder 21.
The secondary air inlet 8, the tertiary air inlet 13 and the quaternary air inlet 16 are connected with a blower 24; the first hot air inlet 6 is connected to the air heater 22, and the second hot air inlet 11 is connected to the air heater 22.
Example two:
a boiler multistage combustion high-efficiency heating device comprises a first combustion chamber 1, a second combustion chamber 2 and a third combustion chamber 3; central pipes 5 are arranged in the first combustion chamber 1, the second combustion chamber 2 and the third combustion chamber 3; the first combustion chamber 1 is connected with a primary feed port 4 and a first hot air inlet 6, and a plurality of secondary air inlets 8 are arranged on the side wall of the first combustion chamber 1; the second combustion chamber 2 is communicated with the first combustion chamber 1, the second combustion chamber 2 is provided with a multi-stage feeding hole 9, and the multi-stage feeding hole 9 is communicated with the second combustion chamber 2 and the third combustion chamber 3; the second combustion chamber 2 is connected with a second hot air inlet 11, and a tertiary air inlet 13 is formed in the side wall of the second combustion chamber; the third combustion chamber 3 is communicated with the second combustion chamber 2, and a four-time air inlet is formed in the side wall of the third combustion chamber 3; the central tube 5 is a high-temperature-resistant corundum tube, and asbestos rope fillers are arranged on the inner wall of the combustion chamber; through setting up center tube 5, the combustion chamber lateral wall lets in secondary tangential wind, forms the vortex with hot-blast, and fuel burning is accelerated, improves combustion efficiency.
The primary air flow of cold coal powder entering the primary feed port 4 is used as central jet flow, is mixed with the high-temperature air jet flow of the first hot air inlet 6, enters the central tube 5, is ignited through the primary combustion chamber, the secondary air inlet 8 is connected with the air feeder 24, and is fed into secondary tangential wind, most of the area close to the wall of the central tube 5 is positive directional wind, a reverse flow area can appear on the inner wall of the first combustion chamber 1 of the secondary air inlet 8, and the reverse flow area forms coal powder particles in the combustion chamber to circulate along the axial direction to form vortex, so that the combustion efficiency of the coal powder particles is improved; then the pulverized coal enters the secondary combustion chamber, high-temperature air is introduced again through the second hot air inlet 11, tertiary tangential air is fed through the tertiary air inlet 13, then the pulverized coal is fed into the tertiary combustion chamber, the pulverized coal particle entering amount is controlled through the second feeding adjusting valve 15, and quaternary tangential air is introduced through the quaternary air inlet 16, so that the pulverized coal particles are fully combusted, and the heat energy utilization rate is effectively improved.
The mass of the introduced coal powder in the primary combustion chamber is Ga1The mass of the pulverized coal introduced into the secondary combustion chamber is Ga2The mass of the pulverized coal introduced into the three-stage combustion chamber is Ga3(ii) a The mass of air introduced into the primary combustion chamber is Gf1The mass of air introduced into the secondary combustion chamber is Gf2The mass of air introduced into the three-stage combustion chamber is Gf3(ii) a The pulverized coal combustion efficiency μ satisfies the following formula:
μ＝(Ga1+Ga2+Ga3)*H*β/(Gf1+Gf2+Gf3)+(Ga1+Ga2+Ga3)；
in the above formula, the unit of the coal powder mass and the air mass are kg, H is the coal powder heat productivity in KJ, and β is the fuel coefficient constant.
The formula can effectively judge the combustion efficiency of the pulverized coal, change the air quality and pulverized coal mass ratio, achieve the complete combustion of the pulverized coal, and improve the combustion efficiency of the pulverized coal.
The heating device mainly comprises the following components: 1. the feeding system is used for providing cold-state pulverized coal by the powder feeder; 2. the air supply system comprises a high-pressure fan 18, a blower 24 and the like, the air heater 22 and the pulverized coal feeder supply air by the high-pressure fan 18, and the blower 24 supplies multiple air; 3. a hot air heating system consisting of a high frequency power supply and an air heater 22; 4. the measuring system consists of a temperature measuring couple 14, a data acquisition unit HP34970B and a computer for storing data.
The heating device can be directly used for external heating of various furnace bodies 25, the furnace bodies 25 are connected with an induced draft fan 26 through a tail flue, the induced draft fan 26 is introduced into a chimney 27, and smoke is discharged through the chimney 27.
The working principle is as follows: the primary air flow of cold coal powder entering the primary feed port 4 is used as central jet flow, is mixed with the high-temperature air jet flow of the first hot air inlet 6, enters the central tube 5, is ignited through the primary combustion chamber, the secondary air inlet 8 is connected with the air feeder 24, and is fed into secondary tangential wind, most of the area close to the wall of the central tube 5 is positive directional wind, a reverse flow area can appear on the inner wall of the first combustion chamber 1 of the secondary air inlet 8, and the reverse flow area forms coal powder particles in the combustion chamber to circulate along the axial direction to form vortex, so that the combustion efficiency of the coal powder particles is improved; then the pulverized coal enters a secondary combustion chamber, high-temperature air is introduced again through a second hot air inlet 11, tertiary tangential air is fed through a tertiary air inlet 13, then the pulverized coal is fed into the tertiary combustion chamber, the amount of the pulverized coal particles entering is controlled through a second feeding adjusting valve 15, and quaternary tangential air is introduced through a quaternary air inlet 16, so that the pulverized coal particles are fully combusted, and the heat energy utilization rate is effectively improved; the data measured by the temperature measuring couple 14 is transmitted to a computer for storage, so that the temperature of the combustion chamber can be adjusted conveniently.
The device that obtains through above-mentioned technical scheme is a boiler multistage burning high-efficient heating device, through setting up a plurality of combustion chambers, through high-temperature air ignition, ventilates many times, and the feed many times, multistage burning effectively improves fuel combustion efficiency, and is energy-concerving and environment-protective.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art; any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A boiler multi-stage combustion efficient heating device comprises a first combustion chamber (1), a second combustion chamber (2) and a third combustion chamber (3); the combustion chamber is characterized in that central pipes (5) are arranged in the first combustion chamber (1), the second combustion chamber (2) and the third combustion chamber (3); the first combustion chamber (1) is connected with a primary feed inlet (4) and a first hot air inlet (6), and a plurality of secondary air inlets (8) are arranged on the side wall of the first combustion chamber (1); the second combustion chamber (2) is communicated with the first combustion chamber (1), the second combustion chamber (2) is provided with a multi-stage feed inlet (9), and the multi-stage feed inlet (9) is communicated with the second combustion chamber (2) and the third combustion chamber (3); the second combustion chamber (2) is connected with a second hot air inlet (11), and a tertiary air inlet (13) is formed in the side wall of the second combustion chamber; the third combustion chamber (3) is communicated with the second combustion chamber (2), and a four-time air inlet (16) is formed in the side wall of the third combustion chamber (3).
2. The boiler multistage combustion high-efficiency heating device according to claim 1, wherein the first hot air inlet (6) is connected with an L-shaped first high-temperature resistant pipeline leading to the inside of the first combustion chamber (1), the high-temperature resistant pipeline is provided with a plurality of first hot air nozzles (7), and the first hot air nozzles (7) are cylindrical and hollow; the second hot air inlet (11) is connected with a second high-temperature-resistant pipeline to lead to the second combustion chamber (2) and the third combustion chamber (3), and a plurality of second hot air nozzles (12) are arranged on the second high-temperature-resistant pipeline and are hollow cylindrical inside.
3. The boiler multi-stage combustion high-efficiency heating device according to claim 1, characterized in that a first feed adjusting valve (10) is arranged at the position where the multi-stage feed inlet (9) is connected with the second combustion chamber (2), and a second feed adjusting valve (15) is arranged at the position where the multi-stage feed inlet is connected with the third combustion chamber (3).
4. The boiler multistage combustion high-efficiency heating device according to claim 1, characterized in that the second combustion chamber (2) is provided with a plurality of temperature measuring couples (14), the temperature measuring couples (14) penetrate through the side wall of the combustion chamber, are close to the central pipe (5), measure the axial temperature of the second combustion chamber (2), and the temperature measuring couples (14) are connected with a data acquisition instrument (23) through conducting wires.
5. The multi-stage combustion high-efficiency heating device for the boiler according to the claim 1 is characterized in that the third combustion chamber (3) is provided with a temperature measuring couple (14) and an eight-shaped flame jet (17).
6. The boiler multi-stage combustion high-efficiency heating device according to claim 1, characterized in that the primary feed port (4) is connected with a primary powder feeder (20), the primary powder feeder (20) is connected with a flow meter (19), and the flow meter (19) is connected with a high pressure fan (18); the multi-stage feed inlet (9) is connected with a multi-stage powder feeder (21).
7. The multi-stage combustion efficient heating device for the boiler according to the claim 1, characterized in that the secondary air inlet (8), the tertiary air inlet (13) and the quaternary air inlet (16) are connected with a blower (24); the first hot air inlet (6) and the second hot air inlet (11) are connected with an air heater (22).
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| CN110131706A (en) * | 2019-06-17 | 2019-08-16 | 河南迪诺环保科技股份有限公司 | A kind of boiler multilevel burning highly effective heating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110131706A (en) * | 2019-06-17 | 2019-08-16 | 河南迪诺环保科技股份有限公司 | A kind of boiler multilevel burning highly effective heating device |
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