CN2624059Y - Pulverized coal direct-fire combustor - Google Patents
Pulverized coal direct-fire combustor Download PDFInfo
- Publication number
- CN2624059Y CN2624059Y CN 03245903 CN03245903U CN2624059Y CN 2624059 Y CN2624059 Y CN 2624059Y CN 03245903 CN03245903 CN 03245903 CN 03245903 U CN03245903 U CN 03245903U CN 2624059 Y CN2624059 Y CN 2624059Y
- Authority
- CN
- China
- Prior art keywords
- spout
- oil gun
- gun
- jet pipe
- bluff body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a direct start-up burner of coal dust applied in the huge pulverized coal fired boiler in the generating plant, comprisng a thrust jet, a bluff component, an oil gun and an arc gun. The utility model is characterized in that the end of the thrust jet is provided with a flaring steady-burning spout; the bluff component is arranged at the center part of the spout; the oil gun and the arc gun are arranaged in line at the external side of the thrust jet and the spout; and the oil gun and the arc gun are communicated with the inner side of the spout and are plugged inside the spout. The utility model has the advantages of high oil saving efficiency, great suitability to the coal, steady combustion and little maintenance and so on.
Description
Technical field:
The utility model relates to the coal dust direct-fire burner that a kind of power station large coal powder boiler uses.
Background technology:
Burner is the critical piece in the generating plant pulverized coal boiler, is mainly used in the ignition of coal dust, thereby discharges the heating of heat energy boiler of feeding.Present coal dust direct-fire burner mainly is made of oil gun, arc gum, bluff body, jet pipe etc.This burner is round tubular structure, bluff body is arranged on the inside center position of jet pipe termination, for the ease of arranging oil gun and arc gum, the jet pipe rear portion is in tilted layout and is connected with an airduct, oil gun and arc gum fixedly install side by side along the central axis of jet pipe, the termination of oil gun and arc gum is positioned at the centre of bluff body, and the rear end of oil gun and arc gum is positioned at inclination place at jet pipe rear portion.During work, at first by arc gum oil is examined combustion, Ran Shao oil gun is lighted coal dust more then, make the coal dust of burning behind bluff body, form high temperature recirculation zone, after treating that fire box temperature is elevated to the ignition temperature of coal dust, fuel cut-off, burner will get up by burn steadily.Because oil gun fixedly installs in jet pipe vertically, the mist of oil of injection can cause negative effect to the steady combustion in the recirculating zone behind the bluff body, influence fuel-economizing and the Oil gun head coal dust obstruction that refluxed often takes place; Because of being subjected to washing away for a long time of breeze airflow, the oil gun in the jet pipe, arc gum and bluff body wearing and tearing are very fast, often maintenance, and influence is produced.
The utility model content:
The purpose of this utility model provides that a kind of rate of economizing gasoline height of lighting a fire, coal adaptability are strong, flameholding, coal dust direct-fire burner that maintenance capacity is little.
To achieve these goals, the utility model comprises: jet pipe, spout, bluff body, oil gun, arc gum, it is to have connected a tubaeform steady combustion spout in the termination of jet pipe, bluff body is fixedly installed on the center in the spout, the outside at jet pipe and spout is tiltedly installed with oil gun and arc gum side by side, oil gun and arc gum all are connected with the spout inboard, and can be inserted into spout inside.
Like this when work, Oil gun head and arc gum head are inserted into by the interior bluff body of spout, arc gum point oil combustion gun, arc gum withdraws from, drop into coal dust again behind the oil gun smooth combustion certain hour, breeze airflow is lighted and the high temperature recirculation zone smooth combustion behind bluff body, when burner hearth reaches igniting temperature of pulverized-coal, the oil gun fuel cut-off also withdraws from spout, finishes ignition smooth combustion work.The utlity model has following advantage: 1, because oil gun and arc gum are fixedly installed on the outside of jet pipe and spout, withdraw from spout finishing igniting back oil gun, thereby by the coal dust erosive wear and it is resulted in blockage, reduced maintenance capacity; 2, because oil gun is to tilt to insert, the mist of oil of injection has been strengthened the high temperature gases recirculating intensity behind the bluff body, has improved rate of economizing gasoline; 3, because the effect of tubaeform steady combustion spout makes breeze airflow reduce the erosive wear of bluff body, prolonged the life-span of bluff body, made the recirculating zone behind the bluff body desirable more; 4, coal adaptability is strong, can be used for the igniting and the low-load combustion-stabilizing of anthracite-fired boiler.
Description of drawings:
Below in conjunction with accompanying drawing the utility model is elaborated.
Fig. 1 is a structural representation of the present utility model.
The specific embodiment:
As shown in Figure 1, the utility model comprises: jet pipe 1, spout 2, bluff body 3, oil gun 8, arc gum 7.Connected a tubaeform steady combustion spout 2 in the termination of jet pipe 1, bluff body 3 is fixedly installed on the center in the spout 2, and bluff body 3 is made coniform and adapted with tubaeform steady combustion spout 2.The outside at jet pipe 1 and spout 2 is tiltedly installed with oil gun 8 and arc gum 7 side by side, oil gun 8 and arc gum 7 can be obliquely installed side by side up and down also can about be obliquely installed side by side, oil gun 8 is supported by oil gun sleeve pipe 9, arc gum 7 is supported by arc gum sleeve pipe 6, oil gun sleeve pipe 9 and arc gum sleeve pipe 6 are fixed on the outside of spout 2, oil gun 8 and arc gum 7 all are connected with spout 2 inboards, oil gun 8 can move in oil gun sleeve pipe 9, Oil gun head 4 can be inserted into spout 2 inside, when Oil gun head 4 inserted spout 2 inside, Oil gun head 4 was positioned at the next door of bluff body 3; Arc gum 7 can move in arc gum sleeve pipe 6, and arc gum head 5 can be inserted into by the Oil gun head of spout 2 inside.Oil gun and arc gum all are held back in separately the sleeve pipe under the normal condition, only just insert spout inside when igniting.The coal powder density of oil gun side is provided with a pulverized coal concentrator 10 when lighting a fire in order to improve in jet pipe, because the regulating action of pulverized coal concentrator increases the coal powder density of oil gun one side, helps catching fire fast.The utility model can select for use different steel welding or the castings that require to form, and the big I of its specification is made series of products according to the specification of boiler.
Claims (3)
1, a kind of coal dust direct-fire burner, comprise: jet pipe (1), spout (2), bluff body (3), oil gun (8), arc gum (7), it is characterized in that having connected a tubaeform steady combustion spout (2) in the termination of jet pipe (1), bluff body (3) is fixedly installed on the center in the spout (2), the outside at jet pipe (1) and spout (2) is tiltedly installed with oil gun (8) and arc gum (7) side by side, oil gun (8) and arc gum (7) all are connected with spout (2) inboard, and can be inserted into spout (2) inside.
2, coal dust direct-fire burner according to claim 1 is characterized in that being provided with a pulverized coal concentrator (10) in jet pipe (1)
3, coal dust direct-fire burner according to claim 1, when it is characterized in that Oil gun head (4) inserts spout (2) inside, Oil gun head (4) is positioned at the next door of bluff body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03245903 CN2624059Y (en) | 2003-06-02 | 2003-06-02 | Pulverized coal direct-fire combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03245903 CN2624059Y (en) | 2003-06-02 | 2003-06-02 | Pulverized coal direct-fire combustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2624059Y true CN2624059Y (en) | 2004-07-07 |
Family
ID=34251846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03245903 Expired - Fee Related CN2624059Y (en) | 2003-06-02 | 2003-06-02 | Pulverized coal direct-fire combustor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2624059Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100585279C (en) * | 2006-05-10 | 2010-01-27 | 中国科学技术大学 | Coal powder ignition device and method |
| CN113280332A (en) * | 2021-04-09 | 2021-08-20 | 西安热工研究院有限公司 | Direct-current stable-combustion burner system based on radial concentration of pulverized coal |
-
2003
- 2003-06-02 CN CN 03245903 patent/CN2624059Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100585279C (en) * | 2006-05-10 | 2010-01-27 | 中国科学技术大学 | Coal powder ignition device and method |
| CN113280332A (en) * | 2021-04-09 | 2021-08-20 | 西安热工研究院有限公司 | Direct-current stable-combustion burner system based on radial concentration of pulverized coal |
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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 |