CN108592014A - A kind of multistage combustion gas and multi-staged air hybrid system - Google Patents
A kind of multistage combustion gas and multi-staged air hybrid system Download PDFInfo
- Publication number
- CN108592014A CN108592014A CN201810649641.8A CN201810649641A CN108592014A CN 108592014 A CN108592014 A CN 108592014A CN 201810649641 A CN201810649641 A CN 201810649641A CN 108592014 A CN108592014 A CN 108592014A
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- China
- Prior art keywords
- gas
- door
- bellows
- nozzle ring
- plate
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C7/00—Combustion apparatus characterised by arrangements for air supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K5/00—Feeding or distributing other fuel to combustion apparatus
- F23K5/002—Gaseous fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L9/00—Passages or apertures for delivering secondary air for completing combustion of fuel
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
A kind of multistage combustion gas and multi-staged air hybrid system, including bellows, bellows include front shroud, back shroud, the bellows lower end is equipped with guide vane, it is fixed with door-plate on the front shroud, gas nozzle ring is equipped in bellows, one end of gas nozzle ring is fixed on door-plate, airhood is equipped in gas nozzle ring, it is bored equipped with Whirl deposite tank in the outside of gas nozzle ring, Whirl deposite tank cone is directly anchored on the back shroud of door-plate, it is filled by refractory cement in the gap that Whirl deposite tank is bored between the back shroud of door-plate, Whirl deposite tank cone is tightly connected through fire clay ring and back shroud, position corresponding with fire clay ring connects Mixed Zone on back shroud, gas transmission elbow is further fixed on the door-plate, one end of gas transmission elbow is connect with gas nozzle ring.On the one hand fuel gas and air are classified by this system, by changing fuel gas and air flow channel, multi-staged air and multistage combustion gas is respectively set even into mixed zone, increases the area that contacts with each other, accelerates mixing velocity；Another aspect main air forms Whirl deposite tank after Whirl deposite tank is bored, and enhances mixed zone air agitation, strengthens the mixing intensity of combustion gas and air.
Description
Technical field
The present invention relates to a kind of multistage combustion gas and multi-staged air hybrid system.
Background technology
During gas fuel burning, nitrogen oxides in effluent after burning for the adequacy and reduction that ensure burning
Content needs fuel gas to be sufficiently mixed with air, and conventional burning mixing arrangement usually only can by one or several strands
Combustion gas body and one air mix after-combustion by the free diffusing between itself, flue gas after the adequacy of burning and burning
Middle amount of nitrogen oxides cannot be guaranteed.
Invention content
Its purpose of the invention is that a kind of multistage combustion gas of offer and multi-staged air hybrid system, solves conventional burning
Mixing arrangement is usually only mixed with one air by the free diffusing between itself by one or several strands of fuel gas
The problem of after-combustion, nitrogen oxides in effluent content cannot be guaranteed after the adequacy of burning and burning.
It adopts the technical scheme that achieve the above object, a kind of multistage combustion gas and multi-staged air hybrid system, including
Bellows, bellows include front shroud, back shroud, and the bellows lower end is equipped with guide vane, door-plate, wind are fixed on the front shroud
Gas nozzle ring is equipped in case, one end of gas nozzle ring is fixed on door-plate, and airhood, gas injection are equipped in gas nozzle ring
The outside of mouth ring is bored equipped with Whirl deposite tank, and Whirl deposite tank cone is directly anchored on the back shroud of door-plate, the rear cover of Whirl deposite tank cone and door-plate
Gap between plate is filled by refractory cement, and Whirl deposite tank cone is tightly connected through fire clay ring and back shroud, on back shroud with it is resistance to
The corresponding position of chamotte ring connects Mixed Zone, and gas transmission elbow, one end of gas transmission elbow and combustion are further fixed on the door-plate
Gas jets ring connects.
Further, secondary air passage gaps are equipped between the gas nozzle ring and airhood.
Further, the guide vane is equipped with 5, and the air into bellows is made to be evenly distributed in bellows.
Further, it is filled with fire-proof mud in the gas nozzle ring, level-one blast tube, two are additionally provided in gas nozzle ring
Grade blast tube and air duct, level-one blast tube are connected to gas transmission elbow and Whirl deposite tank cone；Second gas burning channel is connected to gas transmission
Elbow and Mixed Zone.
Further, the level-one blast tube is 24, and is divided into three regions, and there are 8 level-one combustions in each region
The outlet aperture in gas channel.
Further, the second gas burning channel is equipped with 6, and close to secondary air exit.
Advantageous effect
The present invention has the following advantages compared with prior art.
1. fuel gas is classified with air, by changing fuel gas and air flow channel, multi-staged air is respectively set
And multistage combustion gas increases the area that contacts with each other even into mixed zone, accelerates mixing velocity；
2. main air forms Whirl deposite tank after Whirl deposite tank is bored, enhance mixed zone air agitation, strengthens the mixed of combustion gas and air
Close intensity；
3. fuel gas is after mixing arrangement burning, nitrogen oxides in effluent is in 100mg/m3（Under standard state, natural gas）Hereinafter,
Obtain good environment protecting.
Description of the drawings
Below in conjunction with attached drawing, the invention will be further described.
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the A-A structure sectional views in Fig. 1；
Fig. 3 is the Whirl deposite tank cone and bellows structure schematic diagram of the present invention；
Fig. 4 is the Whirl deposite tank wimble structure schematic diagram of the present invention；
Fig. 5 is that the Whirl deposite tank in Fig. 4 bores B-B structure sectional views；
Fig. 6 is the gas nozzle ring structure schematic diagram of the present invention；
Fig. 7 is the gas nozzle ring C-C structure sectional views in Fig. 6.
Specific implementation mode
This system includes bellows 5, and bellows 5 include front shroud, back shroud, and as shown in Fig. 1-Fig. 7,5 lower end of the bellows is set
There is guide vane 8, door-plate 4 is fixed on the front shroud, gas nozzle ring 3, one end of gas nozzle ring 3 are equipped in bellows 5
It is fixed on door-plate 4, airhood 2 is equipped in gas nozzle ring 3, the outside of gas nozzle ring 3 is equipped with Whirl deposite tank and bores 6, Whirl deposite tank
Cone 6 is directly anchored on the back shroud of door-plate 4, and the gap between Whirl deposite tank cone 6 and the back shroud of door-plate 4 is filled out by refractory cement
It fills, Whirl deposite tank cone 6 is tightly connected through fire clay ring 7 and back shroud, and position connection corresponding with fire clay ring 7 is mixed on back shroud
Region 9 is closed, is further fixed on gas transmission elbow 1 on the door-plate 4, one end of gas transmission elbow 1 is connect with gas nozzle ring 3.
The gap of secondary air circulation is equipped between the gas nozzle ring 3 and airhood 2.
The guide vane 8 is equipped with 5, and the air into bellows 5 is made to be evenly distributed in bellows 5.
It is filled with fire-proof mud in the gas nozzle ring 3, level-one blast tube 31, two level are additionally provided in gas nozzle ring 3
Blast tube 32 and air duct 33, level-one blast tube 31 are connected to gas transmission elbow 1 and Whirl deposite tank cone 6；Second gas burning channel 32
It is connected to gas transmission elbow 1 and Mixed Zone 9.
The level-one blast tube 31 is 24, and is divided into three regions, and there are 8 level-one blast tubes in each region
31 outlet aperture.
The second gas burning channel 32 is equipped with 6, and close to secondary air exit.
The present invention main performance be：
A) it is suitable for the mixing of imflammable gas and air；
B) fuel gas inlet gas pressure（10~20）kpa.
In the use of the present invention, mixed air and combustion gas is needed to enter Mixed Zone 9 by different channels respectively,
Hollow qi leel two-stage enters Mixed Zone, and main air enters from 5 bottom of bellows, is evenly distributed in after guide vane 8
In bellows 5, then it is divided into two parts, a portion enters Mixed Zone 9 by Whirl deposite tank cone 6, and another part is through gas injection
The interior air duct 33 of mouth ring 3 enters Mixed Zone 9.Secondary air between 3 inside of gas nozzle ring and airhood 2 by forming
Gap enter Mixed Zone 9.Combustion gas enters gas nozzle ring 3 by gas transmission elbow 1, and one is respectively set in gas nozzle ring 3
Grade blast tube 31, second gas burning channel 32, the outlet of wherein level-one blast tube 31 is divided into three regions, each region
There are 8 outlet apertures, the gas quantity of the outlet of level-one blast tube 31 to account for about the 80% of total gas quantity, is injected directly into Whirl deposite tank cone 6
It is interior, it is mixed in advance with the main air for entering Whirl deposite tank cone 6.The outlet in second gas burning channel 32 is divided into six regions,
Sprayed from 6 jet pipes respectively, gas quantity accounts for about the 20% of total gas quantity, and close to secondary air exit, enhancing combustion gas with
The mixed effect of air.
Claims (6)
1. a kind of multistage combustion gas and multi-staged air hybrid system, including bellows（5）, bellows（5）Including front shroud, back shroud,
It is characterized in that, the bellows（5）Lower end is equipped with guide vane（8）, door-plate is fixed on the front shroud（4）, bellows（5）Inside set
There is gas nozzle ring（3）, gas nozzle ring（3）One end be fixed on door-plate（4）On, gas nozzle ring（3）It is interior to be equipped with airhood
（2）, gas nozzle ring（3）Outside equipped with Whirl deposite tank bore（6）, Whirl deposite tank cone（6）It is directly anchored to door-plate（4）Back shroud
On, Whirl deposite tank cone（6）With door-plate（4）Back shroud between gap filled by refractory cement, Whirl deposite tank cone（6）Through fire clay
Ring（7）Be tightly connected with back shroud, on back shroud with fire clay ring（7）Corresponding position connects Mixed Zone（9）, the door
Plate（4）On be further fixed on gas transmission elbow（1）, gas transmission elbow（1）One end and gas nozzle ring（3）Connection.
2. a kind of multistage combustion gas according to claim 1 and multi-staged air hybrid system, which is characterized in that the gas injection
Mouth ring（3）With airhood（2）Between be equipped with secondary air circulation gap.
3. a kind of multistage combustion gas according to claim 1 and multi-staged air hybrid system, which is characterized in that the water conservancy diversion leaf
Piece（8）Equipped with 5, make to enter bellows（5）Air in bellows（5）In be evenly distributed.
4. a kind of multistage combustion gas according to claim 1 and multi-staged air hybrid system, which is characterized in that the gas injection
Mouth ring（3）It is interior to be filled with fire-proof mud, gas nozzle ring（3）Inside it is additionally provided with level-one blast tube（31）, second gas burning channel（32）
And air duct（33）, level-one blast tube（31）It is connected to gas transmission elbow（1）It is bored with Whirl deposite tank（6）；Second gas burning channel（32）
It is connected to gas transmission elbow（1）The Mixed Zone and（9）.
5. a kind of multistage combustion gas according to claim 1 and 4 and multi-staged air hybrid system, which is characterized in that described one
Grade blast tube（31）It is 24, and is divided into three regions, each region there are 8 level-one blast tubes（31）Outlet it is small
Hole.
6. a kind of multistage combustion gas according to claim 1 and 4 and multi-staged air hybrid system, which is characterized in that described two
Grade blast tube（32）Equipped with 6, and close to secondary air exit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810649641.8A CN108592014A (en) | 2018-06-22 | 2018-06-22 | A kind of multistage combustion gas and multi-staged air hybrid system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810649641.8A CN108592014A (en) | 2018-06-22 | 2018-06-22 | A kind of multistage combustion gas and multi-staged air hybrid system |
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| Publication Number | Publication Date |
|---|---|
| CN108592014A true CN108592014A (en) | 2018-09-28 |
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ID=63628913
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810649641.8A Pending CN108592014A (en) | 2018-06-22 | 2018-06-22 | A kind of multistage combustion gas and multi-staged air hybrid system |
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| CN (1) | CN108592014A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130112120A1 (en) * | 2011-05-27 | 2013-05-09 | Yuehua Li | Dense Phase Swirl Pulverized Coal Burner |
| CN105805746A (en) * | 2016-05-12 | 2016-07-27 | 徐州科融环境资源股份有限公司 | Classified-combustion fuel gas low-nitrogen combustor |
| CN106765104A (en) * | 2016-11-16 | 2017-05-31 | 广州汇迪新能源科技有限公司 | A kind of biological fuel gas three swirler air distribution low NO |
| CN208703911U (en) * | 2018-06-22 | 2019-04-05 | 江西中船航海仪器有限公司 | A kind of multistage combustion gas and multi-staged air mixing arrangement |
-
2018
- 2018-06-22 CN CN201810649641.8A patent/CN108592014A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130112120A1 (en) * | 2011-05-27 | 2013-05-09 | Yuehua Li | Dense Phase Swirl Pulverized Coal Burner |
| CN105805746A (en) * | 2016-05-12 | 2016-07-27 | 徐州科融环境资源股份有限公司 | Classified-combustion fuel gas low-nitrogen combustor |
| CN106765104A (en) * | 2016-11-16 | 2017-05-31 | 广州汇迪新能源科技有限公司 | A kind of biological fuel gas three swirler air distribution low NO |
| CN208703911U (en) * | 2018-06-22 | 2019-04-05 | 江西中船航海仪器有限公司 | A kind of multistage combustion gas and multi-staged air mixing arrangement |
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