CN104566383B - A kind of oil gas mixing unit started for pulverized-coal fired boiler - Google Patents
A kind of oil gas mixing unit started for pulverized-coal fired boiler Download PDFInfo
- Publication number
- CN104566383B CN104566383B CN201510016185.XA CN201510016185A CN104566383B CN 104566383 B CN104566383 B CN 104566383B CN 201510016185 A CN201510016185 A CN 201510016185A CN 104566383 B CN104566383 B CN 104566383B
- Authority
- CN
- China
- Prior art keywords
- air
- oil
- gun
- combustion chamber
- mixing unit
- 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.)
- Active
Links
- 239000003245 coal Substances 0.000 title claims abstract description 43
- 238000002156 mixing Methods 0.000 title claims abstract description 43
- 238000002485 combustion reaction Methods 0.000 claims abstract description 61
- 239000007789 gas Substances 0.000 claims abstract description 53
- 239000012530 fluid Substances 0.000 claims abstract description 16
- 239000002737 fuel gas Substances 0.000 claims abstract description 15
- 238000000889 atomisation Methods 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 6
- 239000000567 combustion gas Substances 0.000 abstract description 21
- 239000000446 fuel Substances 0.000 abstract description 15
- 239000007921 spray Substances 0.000 abstract description 11
- 239000002817 coal dust Substances 0.000 abstract description 9
- 239000003595 mist Substances 0.000 abstract description 5
- 230000007812 deficiency Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 83
- 239000000203 mixture Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000010763 heavy fuel oil Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D17/00—Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel
- F23D17/002—Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel gaseous or liquid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2204/00—Burners adapted for simultaneous or alternative combustion having more than one fuel supply
- F23D2204/10—Burners adapted for simultaneous or alternative combustion having more than one fuel supply gaseous and liquid fuel
Abstract
The invention discloses a kind of oil gas mixing unit started for pulverized-coal fired boiler, when boiler startup is realized with oil, fluid in fueller sprays into combustion chamber by oil gun, air in air-source enters combustion chamber through air conveying cavity, mist of oil in combustion chamber is lighted oil mist combustion and produces flame by incendiary source, and flame sprays from the flame export of combustion chamber to be lighted into the second air port of pulverized-coal fired boiler to coal dust.When fluid is not enough, it is necessary to when changing combustion gas and realizing boiler startup, it is only necessary to open fuel gas source, combustion gas enters combustion chamber and replaces fluid burning to produce flame, and the second air port into pulverized-coal fired boiler is lighted to coal dust.When fluid deficiency needs to be replaced by combustion gas, it is not necessary to change the device of starting trouble, it is only necessary to open fuel gas source and be supplied to combustion chamber, burnt.As can be seen here, the oil gas mixing unit that the present invention is provided, when different fuel are changed, is not required to change the device of starting trouble, you can realize the startup to boiler, convenient and swift.
Description
Technical field
The present invention relates to mechanical equipment technical field, more particularly to a kind of air-fuel mixture dress started for pulverized-coal fired boiler
Put.
Background technology
The boiler startup in power plant needs the mist of oil of incendiary source point oil combustion gun offer and then puts the coal dust in combusting boiler, works as oil
During liquid shortage, the coal dust in the combustion gas provided by incendiary source point gas gun and then point combusting boiler.However, it is desirable to change oil gun be
Air gun, changes trouble, and then influence the production efficiency of boiler.
Therefore, how to simplify operating procedure when different fuel are changed is those skilled in the art's technology urgently to be resolved hurrily
Problem.
The content of the invention
In view of this, it is an object of the invention to provide a kind of oil gas mixing unit started for pulverized-coal fired boiler, to realize
Simplify the purpose of operating procedure when different fuel are changed.To achieve these goals, the invention provides following scheme：
A kind of oil gas mixing unit started for pulverized-coal fired boiler, including：
Inside surrounds the burning cylinder of combustion chamber, and the first end of the burning cylinder is provided with flame export, and the combustion
The first end for burning cylinder is axially inserted into the second air port of pulverized-coal fired boiler；
It is fixed on air gun and oil gun on burning cylinder second end, the spray of the puff prot of the air gun and the oil gun
Hydraulic fluid port is respectively positioned in the combustion chamber, and the air intake of the air gun is connected with fuel gas source, and oil inlet and the fuel feeding of the oil gun are filled
Put connection；
Air conveys cavity, the gas outlet of the air conveying cavity and the combustion chamber, the air conveyor chamber
The air inlet of body is connected with air-source；
For the incendiary source lighted a fire.
Preferably, in the above-mentioned oil gas mixing unit started for pulverized-coal fired boiler, the air conveying cavity is air
The air conveying cavity that conveyance conduit is surrounded.
Preferably, in the above-mentioned oil gas mixing unit started for pulverized-coal fired boiler, also including being connected to the combustion barrel
Multiple connection air chambers are provided with the air-distributing disc of the inside of body, and the air-distributing disc and enter aperture with the air of the combustion chamber.
Preferably, in the above-mentioned oil gas mixing unit started for pulverized-coal fired boiler, multiple air enter aperture edge
First mounting hole circumferentially to be distributed on the air-distributing disc.
Preferably, in the above-mentioned oil gas mixing unit started for pulverized-coal fired boiler, installation institute is provided with the air-distributing disc
State the first air gun mounting hole of air gun.
Preferably, in the above-mentioned oil gas mixing unit started for pulverized-coal fired boiler, installation is also provided with the air-distributing disc
First oil gun mounting hole of the oil gun.
Preferably, in the above-mentioned oil gas mixing unit started for pulverized-coal fired boiler, the oil gun is arranged installed in described
In air gun, and the oil gun jet through the air gun the second oil gun mounting hole for being provided with of head, the head of the air gun
Portion is circumferentially provided with multiple puff prots.
Preferably, in the above-mentioned oil gas mixing unit started for pulverized-coal fired boiler, the air-distributing disc, the air gun and institute
Oil gun is stated to be coaxially disposed.
Preferably, in the above-mentioned oil gas mixing unit started for pulverized-coal fired boiler, the oil gun using mechanical atomization or
Person's medium atomization fluid.
Preferably, in the above-mentioned oil gas mixing unit started for pulverized-coal fired boiler, the incendiary source is explosion-proof high energy point
Fiery device.
It can be seen from above-mentioned technical scheme that, provided by the present invention for the oil gas mixing unit that pulverized-coal fired boiler starts,
When boiler startup is realized with oil, the fluid in fueller enters oil gun by the oil inlet of oil gun, through the jet of oil gun
Atomization sprays into combustion chamber, and at the same time, the air in air-source conveys cavity through the air inlet air inlet of air conveying cavity,
Gas outlet through air conveying cavity enters combustion chamber, and incendiary source lights the mist of oil in combustion chamber, and oil mist combustion produces flame,
Flame sprays from the flame export of combustion chamber to be lighted into the second air port of pulverized-coal fired boiler to coal dust.When fluid is not enough, need
When changing combustion gas and realizing boiler startup, it is only necessary to open fuel gas source, combustion gas enters gas by the air intake of fuel gas inlet and air gun
Rifle, combustion chamber is out entered from the puff prot of air gun, and at the same time, the air in air-source conveys the air inlet of cavity through air
Air inlet conveys cavity, and the gas outlet through air conveying cavity enters combustion chamber, and incendiary source lights the combustion gas in combustion chamber
Fuel gas buring produces flame, and flame sprays from the flame export of combustion chamber to be carried out a little into the second air port of pulverized-coal fired boiler to coal dust
Combustion.When fluid deficiency needs to be replaced by combustion gas, it is not necessary to change the device of starting trouble, it is only necessary to open fuel gas source and be supplied to burning
Room, is burnt.As can be seen here, the oil gas mixing unit that the present invention is provided, when different fuel are changed, is not required to change startup
The device of boiler, you can realize the startup to boiler, it is convenient and swift.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the oil gas mixing unit started for pulverized-coal fired boiler that the embodiment of the present invention one is provided；
Fig. 2 is the structural representation of the oil gas mixing unit started for pulverized-coal fired boiler that the embodiment of the present invention two is provided；
Fig. 3 is that the front view structure of the oil gas mixing unit started for pulverized-coal fired boiler that the embodiment of the present invention three is provided is illustrated
Figure；
Fig. 4 is the left view structural representation of the oil gas mixing unit started for pulverized-coal fired boiler that the embodiment of the present invention three is provided
Figure.
Wherein, in Fig. 1-Fig. 4：
Burning cylinder 1, combustion chamber 101, flame export 102, air gun 2, puff prot 201, air conveying cavity 3, air-distributing disc
4th, air enters aperture 401, oil gun 5, jet 501, the second oil gun mounting hole 502.
Specific embodiment
In order that those skilled in the art is better understood from technical scheme, it is below in conjunction with the accompanying drawings and specific real
The present invention is described in further detail to apply mode.
The effect of air-distributing disc is combustion air is uniformly mixed with fuel and form stabilization and satisfactory flame profile,
Particularly in the case of fuel burning oil, to ensure heavy fuel oil firing completely, in addition to good atomization, it is necessary to have
Perfect air register, so that air is sufficiently mixed rapidly with fuel.
Fig. 1 is referred to, is the structure of the oil gas mixing unit started for pulverized-coal fired boiler that the embodiment of the present invention one is provided
Schematic diagram.It is defeated provided by the present invention for the oil gas mixing unit that pulverized-coal fired boiler starts, including burning cylinder 1, air gun 2, air
Send cavity 3 and incendiary source.The inside of burning cylinder 1 surrounds combustion chamber 101, and the first end of the cylinder 1 that burns is provided with flame export
102, wherein, the first end of the cylinder 1 that burns refers to the port of export of combustion chamber 101, i.e., burned flame sprays in combustion chamber 101
One end.
Air gun 2 and oil gun 5 on burning cylinder 1 second end are fixed on, the puff prot of air gun 2 and the jet of oil gun 5 are equal
In combustion chamber 101, the air inlet of air gun 2 is connected with fuel gas source, and the oil inlet of oil gun 5 is connected with fueller；The He of air gun 2
Oil gun 5 is used to provide fuel to combustion chamber 101, wherein, burning cylinder 1 second end refers to burning cylinder 1 away from combustion chamber 101
One end that interior flame sprays.The gas outlet of air conveying cavity 3 connects with combustion chamber 101, and air conveys the air inlet of cavity 3
Connected with air-source, air-source provides air by conveying cavity to combustion chamber 101；Incendiary source is used to light a fire.
Provided by the present invention for the oil gas mixing unit that pulverized-coal fired boiler starts, when boiler startup is realized with oil, fuel feeding
Fluid in device enters oil gun 5 by the oil inlet of oil gun 5, is sprayed into burning cylinder 1 through the atomization of jet 501 of oil gun 5
The combustion chamber 101 that portion is constituted, at the same time, the air in air-source is conveyed through the air inlet air inlet of air conveying cavity 3
Cavity 3, the gas outlet through air conveying cavity 3 enters combustion chamber 101, and the combustion gas in combustion chamber 101 is lighted combustion gas by incendiary source
Burning produces flame, and flame sprays from the flame export 102 of combustion chamber 101 to be carried out into the second air port of pulverized-coal fired boiler to coal dust
Light.When fluid is not enough, it is necessary to when changing combustion gas and realizing boiler startup, it is only necessary to open fuel gas source, combustion gas by fuel gas inlet and
The air intake of air gun 2 enters air gun 2, out enters combustion chamber 101 from the puff prot 201 of air gun 2, at the same time, in air-source
Air through air conveying cavity 3 air inlet air inlet convey cavity 3, through air conveying cavity 3 gas outlet enter combustion
Room 101 is burnt, the combustion gas in combustion chamber 101 is lighted fuel gas buring and produces flame, flame to go out from the flame of combustion chamber 101 by incendiary source
Mouth 102 sprays to be lighted into the second air port of pulverized-coal fired boiler to coal dust.When fluid deficiency needs to be replaced by combustion gas, it is not necessary to
Change the device of starting trouble, it is only necessary to open fuel gas source and be supplied to combustion chamber 101, burnt.As can be seen here, the present invention is provided
Oil gas mixing unit, when different fuel are changed, be not required to change the device of starting trouble, you can realization is opened boiler
It is dynamic, it is convenient and swift.
It should be noted that the oil gas mixing unit started provided by the present invention for pulverized-coal fired boiler, it is also possible to realize oil
Gas mixed combustion, the fluid in fueller enters oil gun 5 by the oil inlet of oil gun 5, is atomized through the jet 501 of oil gun 5
Combustion chamber 101 is sprayed into, combustion gas enters air gun 2 by the air intake of fuel gas inlet and air gun 2, from the puff prot 201 of air gun 2 out
Into combustion chamber 101, at the same time, the air in air-source conveys cavity through the air inlet air inlet of air conveying cavity 3
3, the gas outlet through air conveying cavity 3 enters combustion chamber 101, and the combustion gas in combustion chamber 101 is lighted fuel gas buring by incendiary source
Flame is produced, flame sprays from the flame export 102 of combustion chamber 101 to be carried out a little into the second air port of pulverized-coal fired boiler to coal dust
Combustion.So as to realize air-fuel mixture burning starting trouble.
As shown in Figure 2.It is the structure of the oil gas mixing unit started for pulverized-coal fired boiler that the embodiment of the present invention two is provided
Schematic diagram.In the another embodiment that the present invention is provided, the oil gas mixing unit started for pulverized-coal fired boiler in the present embodiment
It is similar with the oil gas mixing unit structure for pulverized-coal fired boiler startup in embodiment one, something in common is just repeated no more,
Only introduce difference.
In the present embodiment, the air conveying cavity 3 that air conveying cavity 3 is surrounded for airflow pipe.In air-source
Air be conveyed to combustion chamber 101 through airflow pipe.
Only it is a kind of form that air of the present invention conveys cavity 3 using airflow pipe composition air conveying cavity 3, needs
It is noted that the air conveying cavity 3 of other arbitrary forms composition is the scope of protection of the invention.
As Figure 3-Figure 4.In the 3rd embodiment that the present invention is provided, starting for pulverized-coal fired boiler in the present embodiment
Oil gas mixing unit it is similar with the oil gas mixing unit structure started for pulverized-coal fired boiler in embodiment one, to something in common
Just repeat no more, only introduce difference.
In the present embodiment, also include being connected in burning cylinder 1 for the oil gas mixing unit that pulverized-coal fired boiler starts
The air-distributing disc 4 in portion, and multiple connection air chambers are provided with air-distributing disc 4 enter aperture 401 with the air of combustion chamber 101.Into combustion
The air for burning room 101 enters aperture 401 and forms uniform mitigation air-flow through the air on air-distributing disc 4, it is to avoid air blast is to flame
Impact, combustion gas is fully burnt with air.
In order to further realize that air uniformly enters combustion chamber 101, multiple air enter aperture 401 and are installed along first
Hole is circumferentially distributed on air-distributing disc 4.
In the present embodiment, the first of the first air gun mounting hole and installation oil gun 5 for installing air gun 2 is provided with air-distributing disc 4
Oil gun mounting hole.It is easy 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 disposed.It is coaxially disposed and avoids what is sprayed from combustion chamber 101
Flame run-off the straight.
The invention discloses oil gun 5 in the form of mechanical atomization or medium atomization fluid both atomization fluid, need
It is noted that other any form of forms for realizing oil atomization are the scope of protection of the invention.
In the oil gas mixing unit started for pulverized-coal fired boiler, incendiary source is used to light combustion gas, and satisfaction is carried out to combustion gas
The form of igniting has a lot, wherein, it is explosion-proof high-energy ignition the invention discloses incendiary source present invention discloses only two kinds of forms
This form of device.As long as it should be noted that meeting the model that the form that can be lighted to combustion gas is present invention protection
Enclose.
In the fourth embodiment that the present invention is provided, the oil gas mixing unit started for pulverized-coal fired boiler in the present embodiment
It is similar with the oil gas mixing unit structure for pulverized-coal fired boiler startup in embodiment three, something in common is just repeated no more,
Only introduce difference.
In the present embodiment, in oil gas mixing unit, oil gun 5 is arranged in air gun 2, and oil gun 5 jet 501
Through the second oil gun mounting hole 502 that the head of air gun 2 is provided with, the head of air gun 2 is circumferentially provided with multiple puff prots 201.Will
Oil gun 5 is arranged is for the ease of when air-fuel mixture burns in air gun 2, it is ensured that air-fuel mixture is burnt together,
Make burned flame rigid uniform.In order to realize that the combustion gas that combustion chamber 101 is sprayed into air gun 2 can more be contacted with air,
Multiple puff prots 201 are circumferentially provided with the head of air gun 2.
Wherein, the rigidity of flame is to weigh the standard of the complexity that flame is off, and flame rigidity is less susceptible to more by force
It is off.Flame rigidity is relevant with the time of flame combustion and oxygen supply, and the flame rigidity being just ignited is weaker, by certain hour
Flame rigidity becomes strong after burning, and in certain scope, flame rigidity becomes strong with the increase of oxygen.
" first ", " second " in the present invention etc. is in description and is distinguished, without others particular meaning.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or uses the present invention.
Various modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and inventive features phase
Consistent scope most wide.
Claims (7)
1. it is a kind of for pulverized-coal fired boiler start oil gas mixing unit, it is characterised in that including：
Inside surrounds the burning cylinder (1) of combustion chamber (101), and the first end of burning cylinder (1) is provided with flame export
, and the first end of burning cylinder (1) is axially inserted into the second air port of pulverized-coal fired boiler (102)；
It is fixed on air gun (2) and oil gun (5) on burning cylinder (1) second end, the puff prot (201) of the air gun (2)
It is respectively positioned in the combustion chamber (101) with the jet of the oil gun (5) (501), the air intake and fuel gas source of the air gun (2)
Connection, the oil inlet of the oil gun (5) is connected with fueller；
Air conveys cavity (3), and the gas outlet of air conveying cavity (3) connects with the combustion chamber (101), the air
The air inlet of conveying cavity (3) is connected with air-source；
For the incendiary source lighted a fire；
The axial line of the oil gun (5) and the axial line distance of the air gun (2) more than the oil gun (5) radius with
The radius sum of the air gun (2).
2. oil gas mixing unit according to claim 1, it is characterised in that the air conveys cavity (3) for air is defeated
The air for sending pipeline to surround conveys cavity (3).
3. oil gas mixing unit according to claim 1, it is characterised in that also including being connected to burning cylinder (1)
Inside air-distributing disc (4), and the air of multiple connection air chambers and the combustion chamber (101) are provided with the air-distributing disc (4)
Into aperture (401).
4. oil gas mixing unit according to claim 3, it is characterised in that installation is provided with the air-distributing disc (4) described
First air gun mounting hole of air gun (2).
5. oil gas mixing unit according to claim 4, it is characterised in that installation institute is also provided with the air-distributing disc (4)
State the first oil gun mounting hole of oil gun (5).
6. oil gas mixing unit according to claim 1, it is characterised in that the oil gun (5) using mechanical atomization or
Medium atomization fluid.
7. oil gas mixing unit according to claim 1, it is characterised in that the incendiary source is explosion-proof high-energy ignition dress
Put.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510016185.XA CN104566383B (en) | 2015-01-13 | 2015-01-13 | A kind of oil gas mixing unit started for pulverized-coal fired boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510016185.XA CN104566383B (en) | 2015-01-13 | 2015-01-13 | A kind of oil gas mixing unit started for pulverized-coal fired boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104566383A CN104566383A (en) | 2015-04-29 |
| CN104566383B true CN104566383B (en) | 2017-05-31 |
Family
ID=53083078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510016185.XA Active CN104566383B (en) | 2015-01-13 | 2015-01-13 | A kind of oil gas mixing unit started for pulverized-coal fired boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104566383B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9328918B2 (en) * | 2010-05-28 | 2016-05-03 | General Electric Company | Combustion cold spray |
| CN101963355A (en) * | 2010-08-12 | 2011-02-02 | 黄晓华 | Oil and gas combined burner |
| CN202993214U (en) * | 2012-10-31 | 2013-06-12 | 重庆思微新能源有限公司 | Dual-purpose alcohol fuel and natural gas nozzle |
| CN103185342B (en) * | 2013-04-03 | 2015-09-30 | 大唐韩城第二发电有限责任公司 | A kind of oil gas combination burner |
| CN203731424U (en) * | 2013-12-24 | 2014-07-23 | 佛山市南海区辉泰科技机械有限公司 | Oil-gas dual-use main burner |
| CN204806402U (en) * | 2015-01-13 | 2015-11-25 | 烟台龙源电力技术股份有限公司 | A air -fuel mixture device for pulverized coal boiler starts |
-
2015
- 2015-01-13 CN CN201510016185.XA patent/CN104566383B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104566383A (en) | 2015-04-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205504983U (en) | Gas recirculation low NOx burner in combustion -supporting wind injection type stove | |
| RU187171U1 (en) | Gas oil burner | |
| CN102997235A (en) | Siphoning type alcohol-based liquid fuel kiln burner | |
| CN104566383B (en) | A kind of oil gas mixing unit started for pulverized-coal fired boiler | |
| CN207702461U (en) | The novel super-low nitrogen combustion apparatus that a kind of non-premixed combustion and premixed combustion are combined | |
| CN204404184U (en) | A kind of combustion gas air register | |
| CN104482535B (en) | A kind of combustion gas air register | |
| CN210624913U (en) | Pipeline type oil-coal co-combustion system | |
| CN205480975U (en) | Combustion engine | |
| CN204806402U (en) | A air -fuel mixture device for pulverized coal boiler starts | |
| CN106032907B (en) | Blast furnace gas burner igniter | |
| CN105889922B (en) | A kind of self-priming safe altar lamp of anti-backfire | |
| CN205746839U (en) | A kind of self-priming safe altar lamp of anti-backfire | |
| CN202660546U (en) | Air atomizing oil gun and two-stage gasification oil burner | |
| CN208382143U (en) | A kind of more gas combustion combustors | |
| CN208349285U (en) | A kind of automatic internal-circulation type low nitrogen burning system of flue gas | |
| CN205717246U (en) | The CIU of energy-conservation hazardous waste | |
| CN201925920U (en) | Gasification oil gun | |
| CN207797058U (en) | A kind of oil gas combustor | |
| CN108613175A (en) | A kind of more gas combustion combustors | |
| CN204648230U (en) | Be applicable to the burner using low heat value fuel oil and pluralities of fuel oil | |
| CN201935216U (en) | Biomass energy hybrid fuel ignition system used for coal fired power plant | |
| CN108662576A (en) | A kind of automatic internal-circulation type low nitrogen burning system of flue gas | |
| CN104595888B (en) | The device of oil-based fuel and alcohol-group fuel co-fire | |
| CN207455577U (en) | Return flow burner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |