CN203628642U - Novel stable-combustion and oil-saving pulverized coal ignition device - Google Patents
Novel stable-combustion and oil-saving pulverized coal ignition device Download PDFInfo
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- CN203628642U CN203628642U CN201320859958.7U CN201320859958U CN203628642U CN 203628642 U CN203628642 U CN 203628642U CN 201320859958 U CN201320859958 U CN 201320859958U CN 203628642 U CN203628642 U CN 203628642U
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- pulverized coal
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Abstract
The utility model relates to the technical field of pulverized coal ignition devices, in particular to a novel stable-combustion and iol-saving pulverized coal ignition device. One end of a gas film air box is provided with a pulverized coal flame outlet, the other end of the gas film air box is provided with a primary air pulverized coal inlet, a secondary hot air inlet is formed in the bottom of the gas film air box, gas film air windows are evenly arranged in the gas film air box, an oil burner is arranged at the top end of the gas film air box, and an auxiliary oil gun is arranged on the side face of the oil burner. The burner has the function of an ignition burner and the function of a main burner, and is wide in application range of coal types and high in burnout degree, the comprehensive oil conservation rate is higher than 80%, and the original low-load performance is not affected. The pulverized coal burner adopts the gas film cooling technology, is it guaranteed that slag-bonding and ablation can not occur, abrasion is lowered, the service life of the burner is greatly prolonged, a system is simple, energy consumption of the burner is small, devices are reliable, maintenance amount is low, free of maintenance can be basically achieved, the hedging type arrangement of the oil burner facilitates mutual supporting of oil flames, favorable conditions are provided for pulverized coal burning, the exchanging process of thermal mass is enhanced, a better condition is created for pulverized coal ignition, the oil gun and the ignition gun do not work in a high-temperature area, the position is fixed, and a boosting device is not needed.
Description
Technical field
The utility model relates to pulverized coal ignition device technique field, specifically a kind of new coal powder ignition smooth combustion petroleum economizer.
Background technology
The igniting of coal burning boiler of power station and steady combustion all can consume great amount of fuel oil every year, at present, the most throwing oil that adopts of generating plant pulverized coal boiler is combustion-supporting, surely fire when reaching underload, operating cost is increased, changeable or the Coal Quality Decline of operating coal also can cause unstable combustion, postpones and catches fire and cause the problems such as fly ash combustible material increase.In order to improve the stability of coal powder ignition and burning, improve efficiency of combustion, save fuel consume, in recent years domestic developed polytype without oil or few-oil ignition steady burning burner and flameholder, in recent years, along with rising steadily of crude oil price, power station fuel oil is more and more restricted, and coal-burning boiler igniting and stable combustion oil are also used as an important performance assessment criteria.The technology of " replace oil with coal " of employing and product by electricity power enterprise as reducing cost of electricity-generating, the important channel of improving Business Economic Benefit.In recent years, along with scientific and technological development, constantly there are new fuel-saving technique, product to occur, but some problems of all existence more or less, mainly contain system complex, the shortcoming such as service life is short, cost is high, coal adaptability is poor, maintenance is large, system self energy consumption height.
Therefore, design and adopted novel structure for overcoming the deficiency of above-mentioned technology, can under the condition of black furnace, cold wind, cold powder, directly light the various coals such as anthracite, meager coal, bituminous coal, a kind of new coal powder ignition smooth combustion petroleum economizer of coal fired power plant saving igniting and stable combustion oil, inventor's problem to be solved just.
Summary of the invention
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of new coal powder ignition smooth combustion petroleum economizer, it is simple in structure, easy to use, adopt novel structure, can under the condition of black furnace, cold wind, cold powder, directly light the various coals such as anthracite, meager coal, bituminous coal, be coal fired power plant saving igniting and stable combustion oil, has extraordinary practical value.
The utility model solves the technical scheme that its technical problem adopts: a kind of new coal powder ignition smooth combustion petroleum economizer, it is characterized in that: device comprises air film bellows, oil burner, primary wind and powder entrance, secondary hot-air entrance, air film air regulator, powder flame export, air film bellows one end is powder flame export, the air film bellows other end is primary wind and powder entrance, air film bellows bottom is provided with secondary hot-air entrance, air film bellows inside is evenly provided with air film air regulator, air film bellows top is provided with oil burner, and oil burner side is provided with auxiliary oil gun.
Further, described oil burner is made up of oily flame jet, main oil gun, burning torch, oily firelock, and burning torch is connected with oily firelock, and burning torch arranged outside has main oil gun, and the oily firelock other end is provided with oily flame jet.
Further, the quantity of described oil burner is at least two, and oil burner adopts opposite-flushing type to arrange.
Further, described air film bellows adopt steel alloy material.
Further, described air film air regulator is annular.
The beneficial effects of the utility model are:
1, the utility model burner has start-up burner to have main burner functions concurrently, and coal adapts to wide, and after-flame degree is high, and comprehensive rate of economizing gasoline, more than 80%, does not affect former low-load performance;
2, the utility model coal burner has adopted air film cooling technology, guarantees not slagging scorification, not ablation, has reduced wearing and tearing simultaneously, in the service life that has greatly extended burner, system is simple, and self energy consumption is little, equipment is reliable, and maintenance is extremely low, substantially can realize non-maintaining;
3, the opposite-flushing type of the utility model oil burner is furnished with the mutual support that is beneficial to oily flame, for coal dust firing provides favourable condition, strengthen the exchange process of caloic, for firing coal-dust has been created better condition, oil gun and burning torch are not worked in high-temperature region, position immobilizes, and does not need to establish propulsion plant.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Description of reference numerals: 1-air film bellows; 2-oil flame jet; 3-oil burner; The auxiliary oil gun of 4-; The main oil gun of 5-; 6-burning torch; 7-oil firelock; 8-primary wind and powder entrance; 9-secondary hot-air entrance; 10-air film air regulator; 11-powder flame export.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the utility model, should be understood that these embodiment are only not used in restriction scope of the present utility model for the utility model is described.In addition should be understood that those skilled in the art can make various changes or modifications the utility model after having read the content of the utility model instruction, these equivalent form of values drop on application appended claims limited range equally.
Fig. 1 is a kind of new coal powder ignition smooth combustion of the utility model petroleum economizer structural representation, it is characterized in that: device comprises air film bellows 1, oil burner 3, primary wind and powder entrance 8, secondary hot-air entrance 9, air film air regulator 10, powder flame export 11, air film bellows 1 one end is powder flame export 11, air film bellows 1 other end is primary wind and powder entrance 8, air film bellows 1 bottom is provided with secondary hot-air entrance 9, air film bellows 1 inside is evenly provided with air film air regulator 10, air film bellows 1 top is provided with oil burner 3, and oil burner 3 sides are provided with auxiliary oil gun 4.
The utility model operation principle is on coal burner, to liquidate to arrange that two oil burners 3, coal burner internal layer adopt the monoblock cast of fire resistant special type steel alloy, has annular air film air regulator 10 on burner inner wall, and burner skin is air film bellows 1.This device utilize liquidate arrange two oil burners 3, the thermal-flame sending through the oil burner 3 of overheavy firing in the time of igniting, the air-flow of the primary wind and powder entrance 8 by coal burner is heated to the ignition temperature that uses coal, oil pinkeye central temperature is up to 1800 ℃, primary wind and powder mixture is subject to the impact of thermal-flame, separate out rapidly volatilization takes fire simultaneously, after fugitive constituent is separated out, pulverized coal particle becomes cellular, strengthen reaction table area, thereby accelerated combustion, meet the igniting requirement of combustion technology in coal dust, realize Coal rank at black furnace, cold wind, direct-fire and burning under cold vermicelli part.
The utility model burner has start-up burner to have main burner functions concurrently, coal adapts to wide, after-flame degree is high, comprehensive rate of economizing gasoline is more than 80%, do not affect former low-load performance, the utility model coal burner has adopted air film cooling technology, guarantee not slagging scorification, not ablation, wearing and tearing have been reduced simultaneously, greatly extend the service life of burner, system is simple, self energy consumption is little, equipment is reliable, maintenance is extremely low, substantially can realize non-maintaining, the opposite-flushing type of oil burner 3 is furnished with the mutual support that is beneficial to oily flame, for coal dust firing provides favourable condition, strengthen the exchange process of caloic, for firing coal-dust has been created better condition, oil gun and burning torch are not worked in high-temperature region, position immobilizes, do not need to establish propulsion plant.
Claims (5)
1. a new coal powder ignition smooth combustion petroleum economizer, it is characterized in that: device comprises air film bellows, oil burner, primary wind and powder entrance, secondary hot-air entrance, air film air regulator, powder flame export, air film bellows one end is powder flame export, the air film bellows other end is primary wind and powder entrance, air film bellows bottom is provided with secondary hot-air entrance, air film bellows inside is evenly provided with air film air regulator, and air film bellows top is provided with oil burner, and oil burner side is provided with auxiliary oil gun.
2. a kind of new coal powder ignition smooth combustion petroleum economizer according to claim 1, it is characterized in that: described oil burner is made up of oily flame jet, main oil gun, burning torch, oily firelock, burning torch is connected with oily firelock, burning torch arranged outside has main oil gun, and the oily firelock other end is provided with oily flame jet.
3. a kind of new coal powder ignition smooth combustion petroleum economizer according to claim 1, is characterized in that: the quantity of described oil burner is at least two, and oil burner adopts opposite-flushing type to arrange.
4. a kind of new coal powder ignition smooth combustion petroleum economizer according to claim 1, described air film bellows adopt steel alloy material.
5. a kind of new coal powder ignition smooth combustion petroleum economizer according to claim 1, described air film air regulator is annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320859958.7U CN203628642U (en) | 2013-12-25 | 2013-12-25 | Novel stable-combustion and oil-saving pulverized coal ignition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320859958.7U CN203628642U (en) | 2013-12-25 | 2013-12-25 | Novel stable-combustion and oil-saving pulverized coal ignition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203628642U true CN203628642U (en) | 2014-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320859958.7U Expired - Fee Related CN203628642U (en) | 2013-12-25 | 2013-12-25 | Novel stable-combustion and oil-saving pulverized coal ignition device |
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| CN (1) | CN203628642U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485675A (en) * | 2015-12-28 | 2016-04-13 | 西安热工研究院有限公司 | Cyclone burner with abrasion resisting wind channel |
-
2013
- 2013-12-25 CN CN201320859958.7U patent/CN203628642U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485675A (en) * | 2015-12-28 | 2016-04-13 | 西安热工研究院有限公司 | Cyclone burner with abrasion resisting wind channel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20141225 |
|
| EXPY | Termination of patent right or utility model |