CN204806402U - A air -fuel mixture device for pulverized coal boiler starts - Google Patents
A air -fuel mixture device for pulverized coal boiler starts Download PDFInfo
- Publication number
- CN204806402U CN204806402U CN201520020409.XU CN201520020409U CN204806402U CN 204806402 U CN204806402 U CN 204806402U CN 201520020409 U CN201520020409 U CN 201520020409U CN 204806402 U CN204806402 U CN 204806402U
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- CN
- China
- Prior art keywords
- air
- gun
- oil
- combustion chamber
- mixing unit
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- Expired - Fee Related
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- 239000003245 coal Substances 0.000 title claims abstract description 43
- 239000000446 fuel Substances 0.000 title abstract description 16
- 239000000203 mixture Substances 0.000 title abstract description 10
- 238000002485 combustion reaction Methods 0.000 claims abstract description 58
- 239000012530 fluid Substances 0.000 claims abstract description 16
- 239000007789 gas Substances 0.000 claims description 53
- 239000002737 fuel gas Substances 0.000 claims description 14
- 238000000889 atomisation Methods 0.000 claims description 12
- 239000003595 mist Substances 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 78
- 239000000567 combustion gas Substances 0.000 description 17
- 239000002817 coal dust Substances 0.000 description 7
- 230000004224 protection Effects 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000010763 heavy fuel oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Abstract
The utility model discloses an air -fuel mixture device for pulverized coal boiler starts, when oil expenses realized that the boiler starts, fluid among the oil supply unit spouted intos the combustion chamber through the oil gun, and air in the air source gets into the combustion chamber through the air transportation cavity, and the oil mist of some burning things which may cause a fire disaster in with the combustion chamber is lighted the oil mist burning and is produced flame, and flame is lighted the buggy from the flame export blowout entering pulverized coal boiler's of combustion chamber second wind gap. It is not enough when fluid, when the gas that needs to be changed realizes that the boiler starts, only need open the gas source, the gas gets into the combustion chamber and replaces the fluid burning to produce flame, and light the buggy in the second wind gap that gets into pulverized coal boiler. When fluid inadequately needed to be changed to the gas, the unnecessary device of changing auxiliary boiler only need be opened the gas source and be supplied to the combustion chamber, burns. Therefore, the utility model provides an auxiliary boiler's device when changing different fuel, need not changed to the air -fuel mixture device, can realize the start -up to the boiler, convenient and fast.
Description
Technical field
The utility model relates to mechanical equipment technical field, particularly relates to a kind of oil gas mixing unit started for pulverized-coal fired boiler.
Background technology
Coal dust in the mist of oil that the boiler startup in power plant needs incendiary source point oil combustion gun to provide and then some combusting boiler, when fluid shortage, the coal dust in the combustion gas provided by incendiary source point gas gun and then some combusting boiler.But, need more scavenge oil gun to be air gun, change trouble, and then affect the production efficiency of boiler.
Therefore, the step that how simplifies the operation when changing different fuel is those skilled in the art's technical problems urgently to be resolved hurrily.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of oil gas mixing unit started for pulverized-coal fired boiler, with the object of the step that realizes simplifying the operation when changing different fuel.To achieve these goals, the utility model provides following scheme:
For the oil gas mixing unit that pulverized-coal fired boiler starts, comprising:
Inside surrounds the burning cylindrical shell of combustion chamber, and the first end of described burning cylindrical shell is provided with flame export, and the first end of described burning cylindrical shell axially inserts the second air port of pulverized-coal fired boiler;
Be fixed on the air gun on described burning cylindrical shell second end and oil gun, the puff prot of described air gun and the jet of described oil gun are all positioned at described combustion chamber, and the air intake of described air gun is communicated with fuel gas source, and the oil-in of described oil gun is communicated with fueller;
Air conveying cavity, the gas outlet of described air conveying cavity and described combustion chamber, the air inlet of described air conveying cavity is communicated with air-source;
For the incendiary source of lighting a fire.
Preferably, in the above-mentioned oil gas mixing unit started for pulverized-coal fired boiler, described air conveying cavity is the air conveying cavity that airflow pipe surrounds.
Preferably, in the above-mentioned oil gas mixing unit started for pulverized-coal fired boiler, also comprise the air-distributing disc of the inside being connected to described burning cylindrical shell, and the air described air-distributing disc having multiple connection air chamber and described combustion chamber enters aperture.
Preferably, in the above-mentioned oil gas mixing unit started for pulverized-coal fired boiler, multiple described air enters aperture and is distributed on described air-distributing disc along described first installing hole circumference.
Preferably, in the above-mentioned oil gas mixing unit started for pulverized-coal fired boiler, described air-distributing disc has the first air gun installing hole installing described air gun.
Preferably, in the above-mentioned oil gas mixing unit started for pulverized-coal fired boiler, described air-distributing disc also has the first oil gun installing hole installing described oil gun.
Preferably, in the above-mentioned oil gas mixing unit started for pulverized-coal fired boiler, described oil gun is sheathed to be arranged in described air gun, and the second oil gun installing hole that the head that the jet of described oil gun passes described air gun has, the head circumference of described air gun is provided with multiple puff prot.
Preferably, in the above-mentioned oil gas mixing unit started for pulverized-coal fired boiler, described air-distributing disc, described air gun and described oil gun are coaxially arranged.
Preferably, in the above-mentioned oil gas mixing unit started for pulverized-coal fired boiler, described oil gun adopts mechanical atomization or medium atomization fluid.
Preferably, in the above-mentioned oil gas mixing unit started for pulverized-coal fired boiler, described incendiary source is explosion-proof high energy ignition unit.
As can be seen from above-mentioned technical scheme, the oil gas mixing unit started for pulverized-coal fired boiler that the utility model provides, when realizing boiler startup with oil, fluid in fueller enters oil gun through the oil-in of oil gun, jet atomization through oil gun sprays into combustion chamber, meanwhile, air in air-source enters air conveying cavity through the air inlet of air conveying cavity, combustion chamber is entered through the gas outlet of air conveying cavity, mist of oil in combustion chamber is lighted by incendiary source, oil mist combustion produces flame, the second air port that flame enters pulverized-coal fired boiler from the flame export ejection of combustion chamber is lighted coal dust.When fluid is not enough, when needing replacing combustion gas to realize boiler startup, only need to open fuel gas source, combustion gas enters air gun through the air intake of fuel gas inlet and air gun, out combustion chamber is entered from the puff prot of air gun, meanwhile, air in air-source enters air conveying cavity through the air inlet of air conveying cavity, combustion chamber is entered through the gas outlet of air conveying cavity, combustion gas in combustion chamber is lighted fuel gas buring and is produced flame by incendiary source, and the second air port that flame enters pulverized-coal fired boiler from the flame export ejection of combustion chamber is lighted coal dust.When fluid deficiency needs to be replaced by combustion gas, the device of starting trouble need not be changed, only need to open fuel gas source and be supplied to combustion chamber, burn.As can be seen here, the oil gas mixing unit that the utility model provides, when changing different fuel, not needing the device changing starting trouble, can realize the startup to boiler, convenient and swift.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the oil gas mixing unit for pulverized-coal fired boiler startup that Fig. 1 provides for the utility model embodiment one;
The structural representation of the oil gas mixing unit for pulverized-coal fired boiler startup that Fig. 2 provides for the utility model embodiment two;
The main TV structure schematic diagram of the oil gas mixing unit for pulverized-coal fired boiler startup that Fig. 3 provides for the utility model embodiment three;
The left TV structure schematic diagram of the oil gas mixing unit for pulverized-coal fired boiler startup that Fig. 4 provides for the utility model embodiment three.
Wherein, in Fig. 1-Fig. 4:
Burning cylindrical shell 1, combustion chamber 101, flame export 102, air gun 2, puff prot 201, air conveying cavity 3, air-distributing disc 4, air enter aperture 401, first air gun installing hole 402, first oil gun installing hole 403, oil gun 5, jet 501, second oil gun installing hole 502.
Detailed description of the invention
In order to make those skilled in the art better understand the technical solution of the utility model, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
The effect of air-distributing disc combustion air is mixed with uniform fuel and is formed to stablize and satisfactory flame profile, particularly under fuel burning oil condition, complete for ensureing heavy fuel oil firing, except good atomization, also must there is perfect air register, fully mix rapidly with fuel to make air.
Referring to Fig. 1, is the structural representation of the oil gas mixing unit for pulverized-coal fired boiler startup that the utility model embodiment one provides.The oil gas mixing unit started for pulverized-coal fired boiler that the utility model provides, comprises burning cylindrical shell 1, air gun 2, air conveying cavity 3 and incendiary source.The inside of burning cylindrical shell 1 surrounds combustion chamber 101, and the first end of burning cylindrical shell 1 is provided with flame export 102, and wherein, the first end of burning cylindrical shell 1 refers to the port of export of combustion chamber 101, i.e. one end of the flame ejection of combustion chamber 101 combustion.
Be fixed on the air gun 2 on burning cylindrical shell 1 second end and oil gun 5, the puff prot of air gun 2 and the jet of oil gun 5 are all positioned at combustion chamber 101, and the air inlet of air gun 2 is communicated with fuel gas source, and the oil-in of oil gun 5 is communicated with fueller; Air gun 2 and oil gun 5 are all for providing fuel to combustion chamber 101, and wherein, burning cylindrical shell 1 second end refers to burning cylindrical shell 1 one end away from the flame ejection in combustion chamber 101.The gas outlet of air conveying cavity 3 is communicated with combustion chamber 101, and the air inlet of air conveying cavity 3 is communicated with air-source, and air-source provides air through conveying cavity to combustion chamber 101; Incendiary source is used for igniting.
The oil gas mixing unit started for pulverized-coal fired boiler that the utility model provides, when realizing boiler startup with oil, fluid in fueller enters oil gun 5 through the oil-in of oil gun 5, jet 501 atomization through oil gun 5 sprays into the combustion chamber 101 of burning cylindrical shell 1 Inner Constitution, meanwhile, air in air-source enters air conveying cavity 3 through the air inlet of air conveying cavity 3, combustion chamber 101 is entered through the gas outlet of air conveying cavity 3, combustion gas in combustion chamber 101 is lighted fuel gas buring and is produced flame by incendiary source, the second air port that flame enters pulverized-coal fired boiler from flame export 102 ejection of combustion chamber 101 is lighted coal dust.When fluid is not enough, when needing replacing combustion gas to realize boiler startup, only need to open fuel gas source, combustion gas enters air gun 2 through the air intake of fuel gas inlet and air gun 2, combustion chamber 101 is out entered from the puff prot 201 of air gun 2, meanwhile, air in air-source enters air conveying cavity 3 through the air inlet of air conveying cavity 3, combustion chamber 101 is entered through the gas outlet of air conveying cavity 3, combustion gas in combustion chamber 101 is lighted fuel gas buring and is produced flame by incendiary source, the second air port that flame enters pulverized-coal fired boiler from flame export 102 ejection of combustion chamber 101 is lighted coal dust.When fluid deficiency needs to be replaced by combustion gas, the device of starting trouble need not be changed, only need to open fuel gas source and be supplied to combustion chamber 101, burn.As can be seen here, the oil gas mixing unit that the utility model provides, when changing different fuel, not needing the device changing starting trouble, can realize the startup to boiler, convenient and swift.
It should be noted that, the oil gas mixing unit started for pulverized-coal fired boiler that the utility model provides, also air-fuel mixture burning can be realized, fluid in fueller enters oil gun 5 through the oil-in of oil gun 5, jet 501 atomization through oil gun 5 sprays into combustion chamber 101, combustion gas enters air gun 2 through the air intake of fuel gas inlet and air gun 2, combustion chamber 101 is out entered from the puff prot 201 of air gun 2, meanwhile, air in air-source enters air conveying cavity 3 through the air inlet of air conveying cavity 3, combustion chamber 101 is entered through the gas outlet of air conveying cavity 3, combustion gas in combustion chamber 101 is lighted fuel gas buring and is produced flame by incendiary source, the second air port that flame enters pulverized-coal fired boiler from flame export 102 ejection of combustion chamber 101 is lighted coal dust.Thus realize air-fuel mixture burning starting trouble.
As shown in Figure 2.For the structural representation of the oil gas mixing unit for pulverized-coal fired boiler startup that the utility model embodiment two provides.In the another embodiment that the utility model provides, the oil gas mixing unit for pulverized-coal fired boiler startup in the present embodiment and the oil gas mixing unit similar started for pulverized-coal fired boiler in embodiment one, something in common is just repeated no more, has only introduced difference.
In the present embodiment, the air that air conveying cavity 3 surrounds for airflow pipe carries cavity 3.Air in air-source flows to combustion chamber 101 through airflow pipe.
Adopt airflow pipe composition air conveying cavity 3 to be only a kind of form that the utility model air carries cavity 3, it should be noted that, the air conveying cavity 3 of other arbitrary forms composition is all scopes of the utility model protection.
As Figure 3-Figure 4.In the 3rd embodiment that the utility model provides, the oil gas mixing unit for pulverized-coal fired boiler startup in the present embodiment and the oil gas mixing unit similar started for pulverized-coal fired boiler in embodiment one, something in common is just repeated no more, has only introduced difference.
In the present embodiment, the oil gas mixing unit for pulverized-coal fired boiler startup also comprises the air-distributing disc 4 of the inside being connected to burning cylindrical shell 1, and air air-distributing disc 4 having multiple connection air chamber and combustion chamber 101 enters aperture 401.The air of air on air-distributing disc 4 entering combustion chamber 101 enters aperture 401 and is formed and evenly relax air-flow, avoids the impact of air blast to flame, make combustion gas can with air Thorough combustion.
Enter combustion chamber 101 uniformly to realize air further, multiple air enters aperture 401 and is distributed on air-distributing disc 4 along the first installing hole circumference.
In the present embodiment, air-distributing disc 4 has the first air gun installing hole 402 installing air gun 2 and the first oil gun installing hole 403 installing oil gun 5.Be convenient to the installation of air gun 2 and oil gun 5.
Further, air-distributing disc 4, air gun 2 and oil gun 5 are coaxially arranged.Coaxial setting avoids the flame run-off the straight sprayed from combustion chamber 101.
The utility model discloses the form that oil gun 5 adopts mechanical atomization or medium atomization fluid these two kinds atomization fluid, it should be noted that, the form realizing oil atomization of other arbitrary forms is all scopes of the utility model protection.
In the oil gas mixing unit started for pulverized-coal fired boiler, incendiary source is used for lighting combustion gas, meets and has a lot to the form that combustion gas is lighted a fire, wherein, the utility model only discloses two kinds of forms, and it is this form of explosion-proof high energy ignition unit that the utility model discloses incendiary source.It should be noted that, as long as meet the scope that the form can lighted combustion gas is all the utility model protections.
In the 4th embodiment that the utility model provides, the oil gas mixing unit for pulverized-coal fired boiler startup in the present embodiment and the oil gas mixing unit similar started for pulverized-coal fired boiler in embodiment three, something in common is just repeated no more, has only introduced difference.
In the present embodiment, in oil gas mixing unit, oil gun 5 is sheathed to be arranged in air gun 2, and the second oil gun installing hole 502 that the head that the jet 501 of oil gun 5 passes air gun 2 has, the head circumference of air gun 2 is provided with multiple puff prot 201.Be for the ease of when air-fuel mixture burns by sheathed for oil gun 5 being arranged in air gun 2, ensure that air-fuel mixture burns together, make burned flame rigid uniform.In order to the combustion gas realizing spraying in air gun 2 combustion chamber 101 can contact more with air, the head circumference of air gun 2 is provided with multiple puff prot 201.
Wherein, the rigidity of flame weighs flame by the standard of complexity extinguished, and flame rigidity is more not easy to be extinguished more by force.Time and the oxygen supply of flame rigidity and flame combustion are relevant, just more weak by the flame rigidity lighted, and flame rigidity grow after certain hour burning, in certain scope, flame rigidity is grow along with the increase of oxygen.
" first ", " second " in the utility model etc. are in description and distinguish, and do not have other particular meaning.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and inventive features.
Claims (10)
1., for the oil gas mixing unit that pulverized-coal fired boiler starts, it is characterized in that, comprising:
Inside surrounds the burning cylindrical shell (1) of combustion chamber (101), the first end of described burning cylindrical shell (1) is provided with flame export (102), and the first end of described burning cylindrical shell (1) axially inserts the second air port of pulverized-coal fired boiler;
Be fixed on the air gun (2) on described burning cylindrical shell (1) second end and oil gun (5), the puff prot (201) of described air gun (2) and the jet (501) of described oil gun (5) are all positioned at described combustion chamber (101), the air intake of described air gun (2) is communicated with fuel gas source, and the oil-in of described oil gun (5) is communicated with fueller;
Air conveying cavity (3), the gas outlet of described air conveying cavity (3) is communicated with described combustion chamber (101), and the air inlet of described air conveying cavity (3) is communicated with air-source;
For the incendiary source of lighting a fire.
2. oil gas mixing unit according to claim 1, is characterized in that, air conveying cavity (3) that described air conveying cavity (3) surrounds for airflow pipe.
3. oil gas mixing unit according to claim 1, it is characterized in that, also comprise the air-distributing disc (4) of the inside being connected to described burning cylindrical shell (1), and the air described air-distributing disc (4) having multiple connection air chamber and described combustion chamber (101) enters aperture (401).
4. oil gas mixing unit according to claim 3, is characterized in that, multiple described air enters aperture (401) and is distributed on described air-distributing disc (4) along the first air gun installing hole circumference.
5. oil gas mixing unit according to claim 4, is characterized in that, described air-distributing disc (4) has the described first air gun installing hole (402) installing described air gun (2).
6. oil gas mixing unit according to claim 4, is characterized in that, described air-distributing disc (4) also has the first oil gun installing hole (403) installing described oil gun (5).
7. oil gas mixing unit according to claim 4, it is characterized in that, described oil gun (5) is sheathed to be arranged in described air gun (2), and the second oil gun installing hole (502) that the jet (501) of described oil gun (5) has through the head of described air gun (2), the head circumference of described air gun (2) is provided with multiple puff prot (201).
8. oil gas mixing unit according to claim 4, is characterized in that, described air-distributing disc (4), described air gun (2) and described oil gun (5) are coaxially arranged.
9. oil gas mixing unit according to claim 1, is characterized in that, described oil gun (5) adopts mechanical atomization or medium atomization fluid.
10. oil gas mixing unit according to claim 1, is characterized in that, described incendiary source is explosion-proof high energy ignition unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520020409.XU CN204806402U (en) | 2015-01-13 | 2015-01-13 | A air -fuel mixture device for pulverized coal boiler starts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520020409.XU CN204806402U (en) | 2015-01-13 | 2015-01-13 | A air -fuel mixture device for pulverized coal boiler starts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204806402U true CN204806402U (en) | 2015-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520020409.XU Expired - Fee Related CN204806402U (en) | 2015-01-13 | 2015-01-13 | A air -fuel mixture device for pulverized coal boiler starts |
Country Status (1)
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| CN (1) | CN204806402U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104566383A (en) * | 2015-01-13 | 2015-04-29 | 烟台龙源电力技术股份有限公司 | Oil and gas mixing device for start-up of pulverized coal fired boiler |
-
2015
- 2015-01-13 CN CN201520020409.XU patent/CN204806402U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104566383A (en) * | 2015-01-13 | 2015-04-29 | 烟台龙源电力技术股份有限公司 | Oil and gas mixing device for start-up of pulverized coal fired boiler |
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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: 20151125 Termination date: 20160113 |