CN2396288Y - Forced circulation smoke prevention and dust control energy-saver for boiler smoke - Google Patents
Forced circulation smoke prevention and dust control energy-saver for boiler smoke Download PDFInfo
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- CN2396288Y CN2396288Y CN 99248719 CN99248719U CN2396288Y CN 2396288 Y CN2396288 Y CN 2396288Y CN 99248719 CN99248719 CN 99248719 CN 99248719 U CN99248719 U CN 99248719U CN 2396288 Y CN2396288 Y CN 2396288Y
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- boiler
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Abstract
The utility model relates to a forced circulation smoke-prevention and dust-control energy saver for boiler smoke. Smoke circulation is formed by a steam generating device, a spray combustion supporting device, an air distributing chamber and a secondary air combustion supporting device, wherein, the steam generating device is an interlayer type steam sleeve pipe sheathed on a smoke circulating pipe, the upper end of the steam generating device is provided with the spray combustion supporting device communicated with an outlet pipe, the air distributing chamber is composed of an air pipe connected with a smoke circulating blower and an air pipe connected with a blower, and secondary air enters a combustion chamber. The utility model makes combustible gas components and heat in a boiler obtain sufficient circulating combustion and utilization, has high thermal efficiency, saves energy, reduces harmful substance in smoke to be discharged and makes smoke-prevention and dust-control effects reach standards.
Description
The utility model relates to the boiler smoke abatement dedusting energy-saving device, and concrete is a kind of boiler smoke forced circulation smoke abatement and dust control energy saver.
China's industrial boiler and domestic boiler major part are coal-burning boiler, the smoke elimination of coal-burning boiler, dedusting and energy-conservation be permanent problem, it relates to environmental protection and people's health; prior art is various in style; though the effect that has is good, complex structure, operating cost is higher.Though the structure that has is simple, effect is relatively poor.Prior art has further improvement, perfect necessity.
The purpose of this utility model provides a kind of boiler smoke forced circulation smoke abatement and dust control energy saver, make combustible gas composition and heat in the boiler obtain sufficient circulating combustion and utilization, improve the thermal efficiency, energy savings, reduce the harmful substance in the discharging flue gas, make smoke elimination, dust removing effects up to standard.
The purpose of this utility model is achieved in that
A kind of boiler smoke forced circulation smoke abatement and dust control energy saver, this boiler comprises body of heater, burner hearth, water courage, water pipe, coal filling hole, dedusting chamber, and the top of the fire grate in the burner hearth is the fired coal combustion chamber, and the body of heater top is provided with exhanst gas outlet;
This device constitutes flue gas recirculation by generation steam unit, spraying auxiliary combustion equipment, distribution plenum, secondary wind auxiliary combustion equipment;
Produce steam unit and be one and be arranged at the outer jacket steam sleeve pipe of boiler furnace, be set in the cylindrical of circulating flue gas smoke pipe hermetically, boiler flue gas outlet pipe is connected in this smoke pipe upper end, and the lower end connects the flue gas recirculation blower fan; The water inlet pipe that is provided with water valve is connected in the lower end of described sleeve pipe, and the upper end has outlet to be communicated with the pipeline of spraying auxiliary combustion equipment, and this outlet is provided with safety valve;
The spraying auxiliary combustion equipment is arranged at the below of fire grate in the body of heater, is made of the connection outlet of being in charge of that is provided with plurality of nozzles, and the direction of each nozzle is upwards towards fire grate;
Distribution plenum is constituted with the airduct that is provided with exhaust outlet that is connected air blast by the airduct that is provided with exhaust outlet that connects the flue gas recirculation blower fan, and the exhaust outlet position on the airduct of this two blower fan is staggered, is arranged at the below of the sprayer unit under the fire grate in the body of heater;
Secondary wind auxiliary combustion equipment is upward through fire grate with branched pipe along the furnace wall by the airduct of air blast and enters fire box, and this branched pipe top is provided with horizontal exhaust duct, and a plurality of exhaust outlets towards combustion chamber central authorities are arranged on this exhaust duct.
Described boiler is the horizontal boiler that body of heater is rectangle;
The pipeline of described spraying auxiliary combustion equipment is the direct tube of some connection steam jacket outlets, and this direct tube top is provided with a plurality of nozzles;
The airduct that is provided with exhaust outlet of the connection flue gas recirculation blower fan of described distribution plenum and the airduct that is provided with exhaust outlet that is connected air blast respectively are parallel straight tube, parallel being crisscross arranged;
The horizontal exhaust duct at the branched pipe top of upwards stretching into the combustion chamber along the furnace wall of the connection air blast of described secondary wind auxiliary combustion equipment is a horizontal straight tube, and this straight tube has a plurality of exhaust outlets towards combustion chamber central authorities.
Described boiler is the cylindrical circular vertical boiler of body of heater;
The straight tube of the connection steam jacket outlet of described combustion-supporting sprayer unit is provided with the branched pipe of radial circumference in equal parts, and each branched pipe respectively has nozzle upwards;
The airduct that is provided with exhaust outlet that described distribution plenum connects the flue gas recirculation blower fan is inside and outside cover decussate structure with the airduct that is provided with exhaust outlet that is connected air blast;
The horizontal exhaust duct at the branched pipe top of upwards stretching into the combustion chamber along the furnace wall of the connection air blast of described secondary wind auxiliary combustion equipment is the semicircle pipe, and this semicircle pipe has a plurality of exhaust outlets towards the center, combustion chamber;
The horizontal semicircle airduct that stretches into the combustion chamber of the inside and outside cover airduct of the radial branched pipe of above-mentioned combustion-supporting sprayer unit, distribution plenum, secondary auxiliary combustion equipment is that the center of circle is arranged with the burner hearth center all.
The utility model has following actively useful effect:
Discharged flue gas was sent combustion system back to again by smoke pipe and blower fan when this device burnt coal in boiler, make combustible gas composition (carbon monoxide, hydrogen, methane, sublimed sulfur etc.) and small carbon granule in the flue gas enter burning of coal layer and fire bed, the forced circulation burning from lower furnace portion; Replenish needed air of coal combustion process and the combustion-supporting needed air of secondary wind with an air blast again; Be equipped with the steam spray auxiliary combustion equipment again, make coal in burner hearth, keep best fired state.
Adopt this device can make combustible gas composition and heat in the boiler smoke obtain sufficient circulating combustion and utilization, thereby make the thermal efficiency of boiler improve 20-30%, make the harmful substance in the boiler emission flue gas reduce 70-90%.
What this device was successful at present is applied on the following vertical horizontal boiler of 0.7MW, and smoke abatement and dust control and effect of coal saving are very remarkable, formally detect by Langfang City environmental monitoring station, and every index all meets national specified discharge standard.
Now in conjunction with the accompanying drawings:
Fig. 1 is the structural representation that the utility model is used for horizontal boiler embodiment, shows the flue gas recirculation structure;
Fig. 2 is the A-A partial view of Fig. 1; Show the combustion-supporting structure of secondary wind;
Fig. 3 is that the B of Fig. 1 is to partial view; Show the sprayer unit structure;
Fig. 4 is that the C of Fig. 1 is to partial view; Show the distribution plenum structure;
Fig. 5 is the structural representation that the utility model is used for vertical boiler;
Fig. 6 be the D of Fig. 5 to partial view, show the combustion-supporting structure of secondary wind;
Fig. 7 be the E of Fig. 5 to partial view, show the sprayer unit structure;
Fig. 8 be the F of Fig. 5 to partial view, show the distribution plenum structure.
Accompanying drawing number:
1. circulating flue gas smoke pipe 2. produces steam unit
201. jacket steam sleeve pipe 202. outlets
3. flue gas recirculation blower fan 4. air blasts
401. exhaust outlet 402. airducts
5. distribution plenum 501. exhaust outlets
502. airduct
6. spraying auxiliary combustion equipment 601. is in charge of
602. nozzle
7. secondary wind auxiliary combustion equipment 701. branched pipes
702. horizontal exhaust duct 703. exhaust outlets
8. boiler
9. fire grate 10. coal seams
11. combustion chamber 12. boiler flue gas outlets
13. water valve 14. safety valves
Please refer to Fig. 1, a kind of boiler smoke forced circulation smoke abatement and dust control energy saver of the present utility model, this boiler comprises body of heater, burner hearth, water courage, water pipe, coal filling hole, dedusting chamber, (this is a prior art, and accompanying drawing does not show; ) the top of fire grate 9 in the burner hearth is fired coal combustion chamber 11, the body of heater top is provided with exhanst gas outlet 12;
This device constitutes flue gas recirculation by generation steam unit 2, spraying auxiliary combustion equipment 6, distribution plenum 5, secondary wind auxiliary combustion equipment 7;
Produce steam unit 2 and be one and be arranged at the outer jacket steam sleeve pipe 201 of boiler furnace, be set in the cylindrical of circulating flue gas smoke pipe 1 hermetically, boiler flue gas outlet pipe 12 is connected in this smoke pipe 1 upper end, and the lower end connects flue gas recirculation blower fan 3; The water inlet pipe that is provided with water valve 13 is connected in the lower end of described sleeve pipe 201, and the upper end has outlet 202 to be communicated with the pipeline of spraying auxiliary combustion equipment 6, and this outlet is provided with safety valve 14;
Please be simultaneously with reference to Fig. 3, spraying auxiliary combustion equipment 6 is arranged at the below of fire grate 9 in the body of heater, is made of the 601 connection outlets 202 of being in charge of that are provided with plurality of nozzles 602, and the direction of each nozzle 602 is upwards towards fire grate;
Please be simultaneously with reference to Fig. 4, distribution plenum 5 is by the airduct that is provided with exhaust outlet 501 502 that connects flue gas recirculation blower fan 3, constitute with the airduct that is provided with exhaust outlet 401 402 that is connected air blast 4, exhaust outlet position 501,401 on this two blower fans airduct 502,402 is staggered, is arranged at the below of the sprayer unit 6 under the fire grate in the body of heater;
Please be simultaneously with reference to Fig. 2, secondary wind auxiliary combustion equipment 7 is upward through fire grate with branched pipe 701 along the furnace wall by the airduct 402 of air blast 4 and enters fire box, these branched pipe 701 tops are provided with horizontal exhaust duct 702, and a plurality of exhaust outlets 703 towards combustion chamber central authorities are arranged on this exhaust duct 702.
Fig. 1, Fig. 2, Fig. 3, embodiment illustrated in fig. 4 in, described boiler is the horizontal boiler that body of heater is rectangle;
The pipeline of described spraying auxiliary combustion equipment 6 is the direct tube 601 of some connection steam jacket outlets 202, and these direct tube 601 tops are provided with a plurality of nozzles 602;
The airduct that is provided with exhaust outlet 501 502 of the connection flue gas recirculation blower fan 3 of described distribution plenum 5 and the airduct that is provided with exhaust outlet 401 402 that is connected air blast 4 respectively are parallel straight tube, parallel being crisscross arranged;
The horizontal exhaust duct 702 at branched pipe 701 tops of upwards stretching into the combustion chamber along the furnace wall of the connection air blast of described secondary wind auxiliary combustion equipment 7 is horizontal straight tube, and this straight tube has a plurality of exhaust outlets 703 towards combustion chamber central authorities.
Fig. 5, Fig. 6, Fig. 7, embodiment illustrated in fig. 8 in, described boiler is the cylindrical circular vertical boiler of body of heater;
The straight tube of the connection steam jacket outlet 202 of described combustion-supporting sprayer unit 6 is provided with the branched pipe 601 of radial circumference in equal parts, and each branched pipe respectively has nozzle 602 upwards;
The airduct that is provided with exhaust outlet 501 502 that described distribution plenum 5 connects flue gas recirculation blower fan 3 is inside and outside cover decussate structure with the airduct that is provided with exhaust outlet 401 402 that is connected air blast 4;
The horizontal exhaust duct 702 at branched pipe 701 tops of upwards stretching into the combustion chamber along the furnace wall of the connection air blast 4 of described secondary wind auxiliary combustion equipment 7 is the semicircle pipe, and this semicircle pipe has a plurality of exhaust outlets 703 towards the center, combustion chamber;
The horizontal semicircle airduct 702 that stretches into the combustion chamber of the inside and outside cover airduct 502,402 of the radial branched pipe 601 of above-mentioned combustion-supporting sprayer unit 6, distribution plenum 5, secondary auxiliary combustion equipment 7 is that the center of circle is arranged with the burner hearth center all.
Claims (3)
1. boiler smoke forced circulation smoke abatement and dust control energy saver, this boiler comprises body of heater, burner hearth, water courage, water pipe, coal filling hole, dedusting chamber, the top of the fire grate 9 in the burner hearth is fired coal combustion chamber (11), and the body of heater top is provided with exhanst gas outlet (12), it is characterized in that:
This device is by producing steam unit (2), spraying auxiliary combustion equipment (6), distribution plenum (5), the flue gas recirculation of secondary wind auxiliary combustion equipment (7) formation;
Produce steam unit (2) and be one and be arranged at the outer jacket steam sleeve pipe (201) of boiler furnace, be set in the cylindrical of circulating flue gas smoke pipe (1) hermetically, boiler flue gas outlet pipe (12) is connected in this smoke pipe (1) upper end, and the lower end connects flue gas recirculation blower fan (3); The water inlet pipe that is provided with water valve (13) is connected in the lower end of described sleeve pipe (201), and the upper end has outlet (202) to be communicated with the pipeline of spraying auxiliary combustion equipment (6), and this outlet is provided with safety valve (14);
Spraying auxiliary combustion equipment (6) is arranged at the below of fire grate (9) in the body of heater, connects outlet (202) formation by be in charge of (601) that are provided with plurality of nozzles (602), and the direction of each nozzle (602) is upwards towards fire grate;
Distribution plenum (5) is constituted with the airduct that is provided with exhaust outlet (401) (402) that is connected air blast (4) by the airduct that is provided with exhaust outlet (501) (502) that connects flue gas recirculation blower fan (3), exhaust outlet position (501) on the airduct of this two blower fan (502), (402), (401) interlock, and are arranged at the below of the sprayer unit (6) under the fire grate in the body of heater;
Secondary wind auxiliary combustion equipment (7) is upward through fire grate with branched pipe (701) along the furnace wall by the airduct (402) of air blast (4) and enters fire box, this branched pipe (701) top is provided with horizontal exhaust duct (702), and a plurality of exhaust outlets (703) towards combustion chamber central authorities are arranged on this exhaust duct (702).
2. boiler smoke forced circulation smoke abatement and dust control energy saver as claimed in claim 1 is characterized in that:
Described boiler is the horizontal boiler that body of heater is rectangle;
The pipeline of described spraying auxiliary combustion equipment (6) is the direct tube (601) of some connection steam jacket outlets (202), and this direct tube (601) top is provided with a plurality of nozzles (602);
The airduct that is provided with exhaust outlet (501) (502) of the connection flue gas recirculation blower fan (3) of described distribution plenum (5) and the airduct that is provided with exhaust outlet (401) (402) that is connected air blast (4) respectively are parallel straight tube, parallel being crisscross arranged;
The horizontal exhaust duct (702) at branched pipe (701) top of upwards stretching into the combustion chamber along the furnace wall of the connection air blast of described secondary wind auxiliary combustion equipment (7) is a horizontal straight tube, and this straight tube has a plurality of exhaust outlets (703) towards combustion chamber central authorities.
3. boiler smoke forced circulation smoke abatement and dust control energy saver as claimed in claim 1 is characterized in that:
Described boiler is the cylindrical circular vertical boiler of body of heater;
The straight tube of the connection steam jacket outlet (202) of described combustion-supporting sprayer unit (6) is provided with the branched pipe (601) of radial circumference in equal parts, and each branched pipe respectively has nozzle (602) upwards;
The airduct that is provided with exhaust outlet (501) (502) that described distribution plenum (5) connects flue gas recirculation blower fan (3) is inside and outside cover decussate structure with the airduct that is provided with exhaust outlet (401) (402) that is connected air blast (4);
The horizontal exhaust duct (702) at branched pipe (701) top of upwards stretching into the combustion chamber along the furnace wall of the connection air blast (4) of described secondary wind auxiliary combustion equipment (7) is the semicircle pipe, and this semicircle pipe has a plurality of exhaust outlets (703) towards the center, combustion chamber;
The horizontal semicircle airduct (702) that stretches into the combustion chamber of the radial branched pipe (601) of above-mentioned combustion-supporting sprayer unit (6), the inside and outside cover airduct (502) of distribution plenum (5), (402), secondary auxiliary combustion equipment (7) is that the center of circle is arranged with the burner hearth center all.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99248719 CN2396288Y (en) | 1999-10-18 | 1999-10-18 | Forced circulation smoke prevention and dust control energy-saver for boiler smoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99248719 CN2396288Y (en) | 1999-10-18 | 1999-10-18 | Forced circulation smoke prevention and dust control energy-saver for boiler smoke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2396288Y true CN2396288Y (en) | 2000-09-13 |
Family
ID=34033840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99248719 Expired - Fee Related CN2396288Y (en) | 1999-10-18 | 1999-10-18 | Forced circulation smoke prevention and dust control energy-saver for boiler smoke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2396288Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104654285A (en) * | 2014-12-20 | 2015-05-27 | 灵璧县长城锅炉制造厂 | Biomass combustion boiler |
| CN107110492A (en) * | 2014-09-11 | 2017-08-29 | 科罗拉多州立大学研究基金会 | Side feed forced ventilation formula biomass combustion cooking furnace |
| CN109444325A (en) * | 2018-12-25 | 2019-03-08 | 长沙开元仪器有限公司 | A kind of steam jacket and elemental analyser |
| CN110836382A (en) * | 2018-08-17 | 2020-02-25 | 四川耀农机电科技有限公司 | Straw burns burning furnace combustion chamber device |
-
1999
- 1999-10-18 CN CN 99248719 patent/CN2396288Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107110492A (en) * | 2014-09-11 | 2017-08-29 | 科罗拉多州立大学研究基金会 | Side feed forced ventilation formula biomass combustion cooking furnace |
| CN104654285A (en) * | 2014-12-20 | 2015-05-27 | 灵璧县长城锅炉制造厂 | Biomass combustion boiler |
| CN110836382A (en) * | 2018-08-17 | 2020-02-25 | 四川耀农机电科技有限公司 | Straw burns burning furnace combustion chamber device |
| CN109444325A (en) * | 2018-12-25 | 2019-03-08 | 长沙开元仪器有限公司 | A kind of steam jacket and elemental analyser |
| CN109444325B (en) * | 2018-12-25 | 2024-04-05 | 长沙开元仪器有限公司 | Steam sleeve and element analyzer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |