CN208703911U - A kind of multistage combustion gas and multi-staged air mixing arrangement - Google Patents
A kind of multistage combustion gas and multi-staged air mixing arrangement Download PDFInfo
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- CN208703911U CN208703911U CN201820966834.1U CN201820966834U CN208703911U CN 208703911 U CN208703911 U CN 208703911U CN 201820966834 U CN201820966834 U CN 201820966834U CN 208703911 U CN208703911 U CN 208703911U
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Abstract
A kind of multistage combustion gas and multi-staged air mixing arrangement, including bellows, bellows include front shroud, back shroud, the bellows lower end is equipped with guide vane, door-plate is fixed 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 gap between Whirl deposite tank cone and 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 the present apparatus, 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 utility model relates to a kind of multistage combustion gas and multi-staged air mixing arrangements.
Background technique
During gas fuel burning, nitrogen oxides in effluent after the adequacy and reduction burning in order to guarantee burning
Content needs fuel gas to be sufficiently mixed with air, and conventional burning mixing arrangement usually only passes through one or several strands can
Combustion gas body carries out mixing after-combustion, flue gas after the adequacy and burning of burning by the free diffusing between itself with one air
Middle amount of nitrogen oxides cannot be guaranteed.
Utility model content
Its purpose of the utility model, which is that, provides a kind of multistage combustion gas and multi-staged air mixing arrangement, solves conventional
The mixing arrangement that burns usually only passes through one or several strands of fuel gas and one air to be carried out by the free diffusing between itself
After-combustion is mixed, the problem of nitrogen oxides in effluent content cannot be guaranteed after the adequacy and burning of burning.
It adopts the technical scheme that achieve the above object, a kind of multistage combustion gas and multi-staged air mixing arrangement, including
Bellows, bellows include front shroud, back shroud, and the bellows lower end is equipped with guide vane, is fixed with door-plate, wind 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, is further fixed on gas transmission elbow, one end of gas transmission elbow and combustion on the door-plate
The connection of gas jets ring.
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, is additionally provided with level-one blast tube, two 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.
Beneficial effect
The utility model has the following advantages that 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 combustion gas and air
Mixing intensity；
3. fuel gas is after mixing arrangement burning, nitrogen oxides in effluent is in 100 mg/m3(under standard state, natural gas)
Hereinafter, obtaining good environment protecting.
Detailed description of the invention
Below in conjunction with attached drawing, the utility model is described in further detail.
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the A-A structure sectional view in Fig. 1；
Fig. 3 is the Whirl deposite tank cone and bellows structure schematic diagram of the utility model；
Fig. 4 is the Whirl deposite tank wimble structure schematic diagram of the utility model；
Fig. 5 is that the Whirl deposite tank in Fig. 4 bores B-B structure sectional view；
Fig. 6 is the gas nozzle ring structure schematic diagram of the utility model；
Fig. 7 is the gas nozzle ring C-C structure sectional view in Fig. 6.
Specific embodiment
The present apparatus includes bellows 5, and bellows 5 include front shroud, back shroud, and as shown in Fig. 1-Fig. 7,5 lower end of bellows is set
There is guide vane 8, door-plate 4 is fixed on the front shroud, is equipped with gas nozzle ring 3, one end of gas nozzle ring 3 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 cone 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, is additionally provided with level-one blast tube 31, second level 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 main performance of the utility model are as follows:
A) it is suitable for the mixing of imflammable gas and air；
B) fuel gas inlet gas pressure (10 ~ 20) kpa.
When the utility model is used, needing mixed air and combustion gas to pass through different channels respectively enters Mixed Zone
9, wherein air point two-stage enters Mixed Zone, and main air enters from 5 bottom of bellows, uniformly divides after guide vane 8
Then cloth is divided into two parts in bellows 5, a portion enters Mixed Zone 9 by Whirl deposite tank cone 6, and another part is through firing
The interior air duct 33 of gas jets ring 3 enters Mixed Zone 9.Secondary air is by between 3 inside of gas nozzle ring and airhood 2
The gap of formation enters Mixed Zone 9.Combustion gas enters gas nozzle ring 3 by gas transmission elbow 1, sets respectively in gas nozzle ring 3
Level-one blast tube 31, second gas burning channel 32 are set, wherein the outlet of level-one blast tube 31 is divided into three regions, each
There are 8 outlet apertures in region, and the gas quantity of the outlet of level-one blast tube 31 accounts for about the 80% of total gas quantity, is injected directly into eddy flow
In wind cone 6, 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
Region sprays from 6 jet pipes respectively, and gas quantity accounts for about the 20% of total gas quantity, and close to secondary air exit, enhancing
The mixed effect of combustion gas and air.
Claims (6)
1. a kind of multistage combustion gas and multi-staged air mixing arrangement, including bellows (5), bellows (5) include front shroud, back shroud,
It is characterized in that, bellows (5) lower end is equipped with guide vane (8), is fixed with door-plate (4) on the front shroud, sets in bellows (5)
Have gas nozzle ring (3), one end of gas nozzle ring (3) is fixed on door-plate (4), and airhood is equipped in gas nozzle ring (3)
(2), the outside of gas nozzle ring (3) is equipped with Whirl deposite tank cone (6), and Whirl deposite tank cone (6) is directly anchored to the back shroud of door-plate (4)
On, Whirl deposite tank is bored the gap between (6) and the back shroud of door-plate (4) and is filled by refractory cement, and Whirl deposite tank bores (6) through fire clay
Ring (7) and back shroud are tightly connected, position connection Mixed Zone (9) corresponding with fire clay ring (7), the door on back shroud
It is further fixed on plate (4) gas transmission elbow (1), one end of gas transmission elbow (1) is connect with gas nozzle ring (3).
2. a kind of multistage combustion gas according to claim 1 and multi-staged air mixing arrangement, which is characterized in that the gas injection
The gap of secondary air circulation is equipped between mouth ring (3) and airhood (2).
3. a kind of multistage combustion gas according to claim 1 and multi-staged air mixing arrangement, which is characterized in that the water conservancy diversion leaf
Piece (8) is equipped with 5, and the air into bellows (5) is made to be evenly distributed in bellows (5).
4. a kind of multistage combustion gas according to claim 1 and multi-staged air mixing arrangement, which is characterized in that the gas injection
It is filled with fire-proof mud in mouth ring (3), is additionally provided with level-one blast tube (31), second gas burning channel (32) in gas nozzle ring (3)
With air duct (33), level-one blast tube (31) is 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).
5. a kind of multistage combustion gas according to claim 4 and multi-staged air mixing arrangement, which is characterized in that the level-one combustion
Gas channel (31) is 24, and is divided into three regions, and there is the outlet aperture of 8 level-one blast tubes (31) in each region.
6. a kind of multistage combustion gas according to claim 4 and multi-staged air mixing arrangement, which is characterized in that the second level combustion
Gas channel (32) is equipped with 6, and close to secondary air exit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820966834.1U CN208703911U (en) | 2018-06-22 | 2018-06-22 | A kind of multistage combustion gas and multi-staged air mixing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820966834.1U CN208703911U (en) | 2018-06-22 | 2018-06-22 | A kind of multistage combustion gas and multi-staged air mixing arrangement |
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| CN208703911U true CN208703911U (en) | 2019-04-05 |
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| CN201820966834.1U Active CN208703911U (en) | 2018-06-22 | 2018-06-22 | A kind of multistage combustion gas and multi-staged air mixing arrangement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108592014A (en) * | 2018-06-22 | 2018-09-28 | 江西中船航海仪器有限公司 | A kind of multistage combustion gas and multi-staged air hybrid system |
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2018
- 2018-06-22 CN CN201820966834.1U patent/CN208703911U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108592014A (en) * | 2018-06-22 | 2018-09-28 | 江西中船航海仪器有限公司 | A kind of multistage combustion gas and multi-staged air hybrid system |
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