CN2575441Y - Anticoking gas combustion steam turbine oil gun - Google Patents
Anticoking gas combustion steam turbine oil gun Download PDFInfo
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- CN2575441Y CN2575441Y CN 02275213 CN02275213U CN2575441Y CN 2575441 Y CN2575441 Y CN 2575441Y CN 02275213 CN02275213 CN 02275213 CN 02275213 U CN02275213 U CN 02275213U CN 2575441 Y CN2575441 Y CN 2575441Y
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- secondary air
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- dust
- boiler
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Abstract
The utility model belongs to the field of delaminated coal horizontal boilers, which relates to a horizontal boiler with an inner device for eliminating smoke and removing dust. In order to solve the problems of environmental pollution due to black smoke and smoke dust, low efficiency, existing in the current boilers, a knocking stream type delaminated device for eliminating smoke and removing dust with a plurality of holes are in stagger arrangement above a coal layer in boiler hearth. The utility model is provided with at least three layers secondary air pipes arranged in parallel; the secondary air pipe correspondingly arranged on both sides of the same layer is correspondingly and oppositely provided with a plurality of nozzles, and both ends of each layer of air pipe are connected with a main air pipe for secondary air. The utility model can be arranged in the boiler hearth or outside the boiler hearth; each layer of second air pipe is fixed on the boiler wall on both sides, and the nozzles of the same layer of air pipe are arranged in a coaxial shaft state or in an eccentric shaft state. The utility model has the advantages of simple structure, low cost, high efficiency and coal saving. When the boiler starts to supply primary air, supplies the secondary air simultaneously, etc.; the Ringelmen blackness, the discharge concentration of smoke, etc. meet the requirement of GWPB3-1999 country environmental protection standard class I zone.
Description
Technical field
The utility model belongs to the coal-fired horizontal boiler of stratiform field, relates to having device for eliminating smoke and dust horizontal boiler in the stove.
Background technology
As everyone knows, horizontal boiler mainly comprises furnace wall, air compartment, fire grate, burner hearth etc.The separate unit volume of boiler is little, adopt outer deduster, some top, stove inner combustion chamber installs cyclone separator additional, complex structure, cost height, efficient are low, discharge flue gas lingemann blackness, smoke dust discharge concentration etc., all above national environmental standard, serious pollution environment, do not have a kind of measure of smoke abatement and dust control preferably for a long time.
So-called smoke abatement and dust control is meant the black smoke of discharging when eliminating boiler combustion, reduces smoke dust discharge concentration.The carbon black that black smoke forms when being the fuel high-temp combustion, its particle diameter is little, and proportion is little to 0.05-1 μ m, can float the long period in air.Black smoke has carbon black to exist in case formation is difficult to eliminate in the black smoke, flue dust also is difficult to remove.
The utility model content
The purpose of this utility model is to solve existing boiler to discharge black smoke, flue dust low to the pollution of environment and boiler dusting complex structure, cost height, efficient, provides and has been provided with the device for eliminating smoke and dust horizontal boiler in the stove.
The utility model is achieved by following technical scheme:
Horizontal boiler with device for eliminating smoke and dust in the stove, mainly comprise furnace wall, air compartment, fire grate and a burner hearth, it is characterized in that in burner hearth above the coal seam, be provided with porous layering stagger arrangement shock flow type device for eliminating smoke and dust, it is at least three layers of secondary air channel that are arranged in parallel, and it is provided with secondary air channel with layer both sides correspondence, and equal correspondence is provided with several nozzles on it, each layer airduct two ends link to each other with secondary wind air main, in addition closed at both ends; This device is located at outside the burner hearth, and each layer secondary air channel is fixed on the furnace wall of both sides.
Above-mentioned horizontal boiler, described device for eliminating smoke and dust is located in the burner hearth, and each layer secondary air channel is fixed on the furnace wall of both sides.
Above-mentioned horizontal boiler, it is described to be that concentric shafts is arranged in opposite directions with the nozzle on the secondary air channel of layer both sides.
Above-mentioned horizontal boiler, it is described to be that eccentric shaft is arranged in opposite directions with the nozzle on the secondary air channel of layer both sides.
The technical solution of the utility model can be used for the development of new horizontal boiler, also can be used for existing horizontal boiler is improved.Porous layering stagger arrangement shock flow type device for eliminating smoke and dust, it is with the nozzle on the secondary air channel of layer both sides, adopt concentric shafts or eccentric shaft correspondence arrangement in opposite directions, all strengthen the inner flue gas of the stove vortex disturbance, strengthen its mixing, in time supply with the required oxygen of fuel gas in the stove, suppress carbon black and form, prolong the time of staying of fly ash granule in stove, realize the separation of gas stream in the stove formula flying dust, make its further after-flame, realize integrating burning, smoke elimination, dedusting in stove, have simple in structurely, cost is low, the advantage that efficient is high, smoke dust discharge concentration are 66.23-76.57mg/Nm
3, lingemann blackness meets the district's requirement of GWPB3-1999 national environmental standard I class less than 1 grade.
The utility model is monitored according to " air and waste gas monitoring analytical method " that GB5468-91 " smoke-dust measurement method ", GB/T16157-1996 " particle is measured and the pollutant method of sampling in the solid pollution exhaust ", State Environmental Protection Administration work out, estimates according to GWPB3-1999 " emission standard of air pollutants for boilers ".
Table 1 is the nozzle on the secondary air channel of the same layer of 1t/h of the present utility model both sides, is the horizontal boiler that eccentric shaft is arranged in opposite directions, its environment and thermodynamic test result.From this table as seen, the smoke evacuation lingemann blackness, smoke dust discharge concentration meets the district's requirement of GWPB3-1999 national environmental standard I class.Device for eliminating smoke and dust is simple in structure in the stove, cost is low, efficient is high, economizing on coal reaches more than 20%.
Table 1 1t/h horizontal boiler of the present utility model environment and thermodynamic test result
| Project | Unit | Nominal output | 70% exerts oneself |
| Boiler output | kg/h | 1020 | 750 |
| Exhaust gas temperature | ℃ | 140 | 130 |
| Smoke evacuation place excess air coefficient | - | 1.90 | 2.13 |
| Boiler slag carbon content | ％ | 7.09 | 11.02 |
| The furnace wall average surface temperature | ℃ | 35 | 36 |
| Fire box temperature | ℃ | 1001 | 798 |
| The positive balance thermal efficiency | ％ | 82.12 | 78.85 |
| Smoke dust discharge concentration | mg/Nm 3 | 76.57 | 73 |
| Lingemann blackness＜ | Level | 1 | 1 |
Description of drawings
Fig. 1 is the utility model horizontal boiler master pseudosection;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the B-B cutaway view (arranging schematic diagram in opposite directions with layer both sides secondary air channel top nozzle concentric shafts) of Fig. 1;
Fig. 4 is that the G of Fig. 3 is to figure;
Fig. 5 is that the H of Fig. 3 is to figure;
Fig. 6 is the another kind of B-B cutaway view of Fig. 1 (the nozzle eccentric shaft of same layer both sides secondary air channel is the jet schematic diagram in opposite directions);
Fig. 7 is that the E of Fig. 6 is to figure;
Fig. 8 is that the F of Fig. 6 is to figure; Wherein:
An air compartment 2-of 1-fire grate 3-coal bunker 4-burner hearth 5-cylindrical shell
6-stove baking 7-secondary wind air main 8～10-secondary air channel 11-nozzle
12-volume damper 13-water-cooling wall 14-outlet flue 15-furnace wall
The specific embodiment
Now in conjunction with the accompanying drawings the utility model is further specified as follows:
Embodiment 1: from Fig. 1-3 as seen, be fire grate 2 above an air compartment 1, its top one side is provided with coal bunker 3.Be burner hearth 4 above coal is arranged 2 coal seams, cylindrical shell 5 is arranged on the furnace roof, its below is a chimney arch 6.Furnace wall 15 inboards are water-cooling wall 13, and both sides, burner hearth 4 rear are outlet flue 14.It is total more than to be the utility model and existing shape grate firing coal horizontal boiler.From Fig. 1 as seen, porous layering stagger arrangement shock flow type device for eliminating smoke and dust of the present utility model is the three layers of secondary air channel 8,9,10 that are arranged in parallel; From Fig. 3-5 as seen, be corresponding the laying with layer both sides secondary air channel, equal correspondence is provided with 33 nozzles in opposite directions on it.Described nozzle is that concentric shafts is arranged in opposite directions.Each layer secondary air channel two ends can be welded on the secondary wind air main 7.Described device for eliminating smoke and dust is located at outside the burner hearth 4, and each layer secondary air channel is fixed on the furnace wall 15 of both sides, and example 3 in 3 sees the following form.But it not is to be only limited to three layers that secondary air channel is arranged in parallel, and body of heater increases its number of plies and increases (following table 3 has provided related data).
Before the boiler startup, by coal bunker 3 cloth coal on fire grate 2.Wind is sent in starting ignition one time, regulates each layer secondary air flow by secondary air flow control valve 12 simultaneously, is secondary wind with the air, and making it secondary air flow is 50% of total blast volume, and its wind speed is 40m/s.Show that from monitoring result the utility model is simple in structure, cost is low, its lingemann blackness, smoke dust discharge concentration etc. all meet the district's requirement of GWPB3-1999 national environmental standard I class.
Embodiment 2: described device for eliminating smoke and dust is located in the burner hearth 4, its secondary air flow is 20% of a total blast volume, wind speed 20m/s, the secondary air channel number of plies, nozzle number, arrangement of nozzles mode (seeing shown in Fig. 6-8) and smoke medicining dust-removing effect, the example 1 in 3 that sees the following form, all the other are with above-mentioned embodiment 1.
Embodiment 3: described device for eliminating smoke and dust is located at outside the burner hearth 4, its secondary air flow is 40% of a total blast volume, wind speed 35m/s, the secondary air channel number of plies, nozzle number, arrangement of nozzles mode (seeing shown in Fig. 6-8) and smoke medicining dust-removing effect, the example 2 in 3 that sees the following form, all the other are with above-mentioned embodiment 1.
Embodiment 4: described device for eliminating smoke and dust is located at outside the burner hearth 4, its secondary air flow is 30% of a total blast volume, wind speed 45m/s, the secondary air channel number of plies, nozzle number, arrangement of nozzles mode (seeing shown in Fig. 6-8) and smoke medicining dust-removing effect, the example 4 in 3 that sees the following form, all the other are with above-mentioned embodiment 1.
Embodiment 5: described device for eliminating smoke and dust is located at outside the burner hearth 4, its secondary air flow is 50% of a total blast volume, wind speed 60m/s, the secondary air channel number of plies, nozzle number, arrangement of nozzles mode (seeing shown in Fig. 6-8) and smoke medicining dust-removing effect, the example 5 in 3 that sees the following form, all the other are with above-mentioned embodiment 1.
5 embodiment of the utility model that more than provides and test result, but and it is non exhaustive.
Table 2 the utility model horizontal boiler specific embodiment
| Example | The boiler model | Secondary stratification of wind number | Nozzle number (individual) | The arrangement of nozzles mode | Smoke medicining dust-removing effect | ||
| Smoke dust discharge concentration (mg/Nmp 3) | Lingemann blackness (level) | SO2 discharges (mg/Nm 3) | |||||
| 1 | DZL1-0.7-A IIIType | 3 | 31 | Eccentric shaft | 76.57 | ＜1 | 719 |
| 2 | SZG x2-1.25-A 1Type (transformation) | 3 | 35 | Eccentric shaft | 66.23 | ＜1 | 569 |
| 3 | DZW w1-0.09-A IIIType | 3 | 33 | Coaxial | 76.52 | ＜1 | 356 |
| 4 | DZW-2.8-0.7-95/70-A IIType | 5 | 45 | Eccentric shaft | 73.03 | ＜1 | 410 |
| 5 | ZL4.2-0.7/95/70-A IIType | 5 | 55 | Eccentric shaft | 74.07 | ＜1 | 452 |
Claims (4)
1, has device for eliminating smoke and dust horizontal boiler in the stove, mainly comprise furnace wall, air compartment, fire grate and a burner hearth, it is characterized in that top, coal seam in the burner hearth, be provided with porous layering stagger arrangement shock flow type device for eliminating smoke and dust, it is at least three layers of secondary air channel that are arranged in parallel, and it is provided with secondary air channel with layer both sides correspondence, and equal correspondence is provided with several nozzles in opposite directions on it, each layer airduct two ends link to each other with secondary wind air main, two ends sealing in addition; This device is located at outside the burner hearth, and each layer secondary air channel is fixed on the furnace wall of both sides.
2, horizontal boiler according to claim 1 is characterized in that described device for eliminating smoke and dust is located in the burner hearth, and each layer secondary air channel is fixed on the furnace wall of both sides.
3, horizontal boiler according to claim 1 and 2 is characterized in that the nozzle with layer both sides secondary air channel is that concentric shafts is arranged in opposite directions.
4, horizontal boiler according to claim 1 and 2, its feature is that eccentric shaft is arranged in opposite directions at the nozzle with layer both sides secondary air channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02275213 CN2575441Y (en) | 2002-09-10 | 2002-09-10 | Anticoking gas combustion steam turbine oil gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02275213 CN2575441Y (en) | 2002-09-10 | 2002-09-10 | Anticoking gas combustion steam turbine oil gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2575441Y true CN2575441Y (en) | 2003-09-24 |
Family
ID=33739316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02275213 Expired - Fee Related CN2575441Y (en) | 2002-09-10 | 2002-09-10 | Anticoking gas combustion steam turbine oil gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2575441Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013159267A1 (en) * | 2012-04-23 | 2013-10-31 | Zhu Hongfeng | Biomass fuel stove |
| CN104764037A (en) * | 2015-02-06 | 2015-07-08 | 江苏金鼎锅炉有限公司 | Improved fire coal chain boiler |
-
2002
- 2002-09-10 CN CN 02275213 patent/CN2575441Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013159267A1 (en) * | 2012-04-23 | 2013-10-31 | Zhu Hongfeng | Biomass fuel stove |
| CN104067050A (en) * | 2012-04-23 | 2014-09-24 | 朱宏锋 | Biomass fuel stove |
| CN104764037A (en) * | 2015-02-06 | 2015-07-08 | 江苏金鼎锅炉有限公司 | Improved fire coal chain boiler |
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| 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 |