CN203190406U - Combustor and air delivery structure thereof - Google Patents
Combustor and air delivery structure thereof Download PDFInfo
- Publication number
- CN203190406U CN203190406U CN 201320152156 CN201320152156U CN203190406U CN 203190406 U CN203190406 U CN 203190406U CN 201320152156 CN201320152156 CN 201320152156 CN 201320152156 U CN201320152156 U CN 201320152156U CN 203190406 U CN203190406 U CN 203190406U
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- air
- burner
- fuel gas
- accelerating tube
- delivery pipe
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Abstract
The utility model relates to a combustor and an air delivery structure thereof. The combustor comprises a combustion nozzle, an air delivery pipe and a combustible gas delivery pipe, wherein the air delivery pipe and the combustible gas delivery pipe are respectively used for delivering air and combustible gas for the combustion nozzle from back to front, an air accelerating pipe is connected onto the air delivery pipe in series, and the pipe diameter of the air accelerating pipe is gradually small from the air inlet position to the air outlet position. The combustor can improve air flowing speed at the outlet end.
Description
Technical field
The utility model relates to a kind of burner and air-conduction structure thereof.
Background technology
In the roasting field, such as can use burner for the industry circle cellar for storing things of firing refractory material." the pellet roasting stove novel burner " that burners in prior such as Chinese patent 94225287.X are disclosed, this burner comprises that burner and two arrange with one heart, and are used for concentric tube to the burner air feed, bubbling air in two concentric tubes, another feeds fuel gas, and air and fuel gas keep released state up to mixing in burner igniting place.The problem that this burner exists is: want to reach the abundant burning in burner of air, fuel gas, air should have bigger flow velocity at the burner place, and have now in the burner because the restriction of concentric tube shape, air can not have the higher speed of giving vent to anger at the burner place, in order to improve the flow velocity of air, often need to be equipped with the very big air compressor machine of power, this has just increased production cost; Simultaneously, because air can not obtain the bigger speed of giving vent to anger, in order to prevent the back draft of mist, air and fuel gas can not carry out premix in advance, therefore the ratio of air and fuel gas is difficult to reach the best combustion ratio in burner place mist, reduced the utilization rate of fuel, increased product cost, not clean-burning waste gas can cause air pollution; In addition, because the shape of burner and the restriction of concentric tube outgassing direction, cause the flame that is produced by this burner to be slender type more, when using existing burner in industry circle cellar for storing things, to fire refractory material, flame directly burns raw material in the cellar for storing things easily, cause the raw material hot-spot, thereby reduce product yield.
Summary of the invention
The purpose of this utility model is to provide a kind of air-conduction structure of the end air velocity of can increasing export; The purpose of this utility model also is to provide a kind of burner that uses this air-conduction structure.
In order to address the above problem, the technical scheme of air-conduction structure is in the utility model:
The air-conduction structure of burner comprises successively air accelerating tube and air delivery pipe serial connection, that be used for being carried to the corresponding burner of forward direction by the back air, and the caliber of described air accelerating tube is diminished gradually by air intake place to air outlet slit place.
The scroll casing shape pipe that line extends along fore-and-aft direction centered by the described air accelerating tube.
Be provided with the rotation direction spiral stream guidance blade consistent with described air accelerating tube rotation direction in the described air delivery pipe, described spiral stream guidance blade surrounds import and is communicated with, exports the spirality guide channel that is used for the air guide burner with the air outlet slit of air accelerating tube.
The technical scheme of burner is in the utility model:
Burner, comprise burner and be respectively applied to be carried to the forward direction burner by the back air delivery pipe and the fuel gas carrier pipe of air and fuel gas, be serially connected with the air accelerating tube on the described air delivery pipe, the caliber of air accelerating tube is diminished gradually by air intake place to air outlet slit place.
The scroll casing shape pipe that line extends along fore-and-aft direction centered by the described air accelerating tube.
Be provided with the rotation direction spiral stream guidance blade consistent with described air accelerating tube rotation direction in the described air delivery pipe, described spiral stream guidance blade surrounds import and is communicated with, exports the spirality guide channel that is used for the air guide burner with the air outlet slit of air accelerating tube.
Described fuel gas carrier pipe coaxial line is arranged in the air delivery pipe, described burner is the hollow bushing structure that axis extends along fore-and-aft direction, the port of export body of described fuel gas carrier pipe is sheathed on the body periphery of burner, the port of export body of the body of described burner and fuel gas carrier pipe surrounds for air, the premix space that fuel gas mixes, the port of export body of described air delivery pipe extends to the port of export body periphery of fuel gas carrier pipe, the port of export body of described fuel gas carrier pipe is provided with the radial perforation that is communicated with air delivery pipe tube chamber and premix space, and the body of described burner is provided with for the air with the burner periphery, fuel gas imports the burner body through hole in the burner.
The endoporus of described burner is the taper that the aperture, rear end is little, the front end aperture is big, and described burner body through hole has a plurality of, and each burner body through hole evenly arranges circumferentially that around burner the axis of each burner body through hole all extends along fore-and-aft direction.
The hole taper of described burner is 120 ° ~ 150 °.
Coaxial line is equipped with the observation tube that front end is communicated with the endoporus of burner in the described fuel gas carrier pipe, and the rear end of observation tube is provided with for the observation panel of observing burner flame situation.
The beneficial effects of the utility model are: by serial connection air accelerating tube in air delivery pipe, air is when flowing through the air accelerating tube, because nozzle effect, the flow velocity of air increases gradually, thereby increased the air velocity in air delivery pipe exit, bigger air velocity can with the fuel gas better mixing, make gas fuel burning more abundant.
Further, the air accelerating tube is a helix tube, can guarantee that air has an accelerator of growing when guaranteeing that air accelerating tube axial length is enough little like this, when making air obtain more high flow rate, has also reduced taking up room of entire equipment.
Further, air and fuel gas are before entering burner, can in the premix space of burner periphery, carry out premix, thereby make air and the ratio of fuel gas reach the best combustion ratio, gas fuel burning more abundant improved the utilization rate of fuel gas, also reduced simultaneously because the insufficient pollution toxic emission that causes of gas fuel burning, because the air velocity in air delivery pipe exit is higher, effectively avoided tempering phenomenon simultaneously.
Description of drawings
Fig. 1 is the structural representation of an embodiment of burner in the utility model, also is the use state diagram of an embodiment of air-conduction structure in the utility model simultaneously;
Fig. 2 is the structural representation of air accelerating tube among Fig. 1;
Fig. 3 be among Fig. 1 C-C to cutaway view;
Fig. 4 be among Fig. 1 A-A to cutaway view;
Fig. 5 be among Fig. 1 B-B to cutaway view.
The specific embodiment
The embodiment of burner is shown in Fig. 1 ~ 5: comprise the burner of being made by ceramic material 11 and be respectively applied to be carried to the forward direction burner by the back air delivery pipe 10 and the fuel gas carrier pipe 6 of air and fuel gas, burner is the hollow bushing structure that axis extends along fore-and-aft direction, the endoporus of burner is the taper that the aperture, rear end is little, the front end aperture is big, and the hole taper of burner is 135 °.Fuel gas carrier pipe coaxial line is arranged in the air delivery pipe, coaxial line is equipped with the observation tube 5 that front end is communicated with the endoporus of burner in the fuel gas carrier pipe, the rear end of observation tube is provided with for the observation panel 4 of observing burner flame situation, is provided with fuel gas import 3 in a side of fuel gas carrier pipe.The rear end of air delivery pipe is serially connected with air accelerating tube 7, line extends and is located on the scroll casing shape pipe of fuel gas carrier pipe periphery centered by the air accelerating tube along fore-and-aft direction, the air accelerating tube has air intake 7-1 and the air outlet slit 7-2 that arranges in proper order along the respective air throughput direction, the caliber of air accelerating tube is diminished to the air outlet slit place gradually by the air intake place, is communicated with air intlet pipe 1 on the air intake of air accelerating tube.Be provided with the rotation direction spiral stream guidance blade 8 consistent with air accelerating tube rotation direction in the air delivery pipe, the spiral stream guidance blade surrounds import and is communicated with, exports the spirality guide channel 9 that is used for the air guide burner with the air outlet slit of air accelerating tube, and air accelerating tube and air delivery pipe have constituted air-conduction structure.The port of export body of fuel gas carrier pipe is sheathed on the body periphery of burner, the port of export body of fuel gas carrier pipe and the body of burner surround for air, the premix space that fuel gas mixes, the port of export body of air delivery pipe extends to the port of export body periphery of fuel gas carrier pipe, the port of export body of fuel gas carrier pipe is provided with corresponding with the channel outlet of spirality guide channel, and the radial perforation 6-1 of connection premix space and fuel gas carrier pipe tube chamber, radial perforation has a plurality of and is distributed in the periphery of fuel gas carrier pipe, the body upper edge of burner circumferentially is evenly equipped with a plurality of for the air with the burner periphery, fuel gas imports the burner body through hole 11-1 in the burner, and the axis of each burner body through hole all extends along fore-and-aft direction.
During work, fuel gas enters in the fuel gas carrier pipe by the fuel gas import and by extremely preceding conveying of back, fuel gas can be natural gas, coal gas etc.; Air is entered in the air accelerating tube by the air intlet pipe, air is accelerated by air accelerating tube spiral through the air accelerating tube time, the air accelerating tube makes air form eddy flow, then the spirality guide channel in air delivery pipe by after carry to preceding spirally-guided, the spiral stream guidance blade plays regulating action; Enter in the fuel gas carrier pipe and the fuel gas premix at the radial perforation of port of export air on the fuel gas carrier pipe of air delivery pipe, the air behind the premix and fuel gas enter in the burner through burner body through hole and burn.Because air has higher muzzle velocity, air is carried by the spiral stream guidance blade screw, and air becomes eddy flow and carried out premix in advance with fuel gas, so air and fuel gas can reach best ratio of combustion, gas fuel burning is abundant, and the utilization rate of fuel gas is provided; Simultaneously by the endoporus of burner is arranged to the pyramidal structure that the aperture, rear end is little, the front end aperture is big, reduced the flame spray penetration in the burner, the length of flame enters cellar for storing things body inside 100 ~ 300mm, flame is mushroom-shaped, the inner eddy current that forms at the circle cellar for storing things, product is evenly burnt, finally adapted to the cellar for storing things stove and fire, save cost.In the actual production at cellar for storing things, industry park, the spread pattern that often adopts a plurality of burners to be set up in parallel, this burner forms mushroom-shaped rotation fire in outlet burning place and rolls into a ball, by the acting in conjunction of many burners, in the circle cellar for storing things, form whole eddy current, reduce localized hyperthermia, make the material thermally equivalent, improve the quality of products, reduce percent defective, increase economic efficiency.
In other embodiment of this burner, the air accelerating tube can also be the conical pipe that the aperture, rear end is little, the front end aperture is big; More in short-term, the spiral stream guidance blade in the air delivery pipe can not established yet at the axial length of air delivery pipe; Certainly the air in the air delivery pipe and the fuel gas in the fuel gas carrier pipe also can directly enter the burner internal combustion without shifting to an earlier date premix; But the tapering of burner is other arbitrary value between 120 ° ~ 150 ° also the time, is waiting to burn distance between product and the burner when enough big, and burner can also be circular tube structure.
The embodiment of air-conduction structure is shown in Fig. 1,3: air-conduction structure is identical with the air-conduction structure described in above-mentioned each burner embodiment, is not described in detail in this.
Claims (10)
1. the air-conduction structure of burner, it is characterized in that: comprise successively air accelerating tube and air delivery pipe serial connection, that be used for being carried to the corresponding burner of forward direction by the back air, the caliber of described air accelerating tube is diminished gradually by air intake place to air outlet slit place.
2. air-conduction structure according to claim 1 is characterized in that: the scroll casing shape pipe that line extends along fore-and-aft direction centered by the described air accelerating tube.
3. air-conduction structure according to claim 2, it is characterized in that: be provided with the rotation direction spiral stream guidance blade consistent with described air accelerating tube rotation direction in the described air delivery pipe, described spiral stream guidance blade surrounds import and is communicated with, exports the spirality guide channel that is used for the air guide burner with the air outlet slit of air accelerating tube.
4. burner, comprise burner and be respectively applied to be carried to the forward direction burner by the back air delivery pipe and the fuel gas carrier pipe of air and fuel gas, it is characterized in that: be serially connected with the air accelerating tube on the described air delivery pipe, the caliber of air accelerating tube is diminished gradually by air intake place to air outlet slit place.
5. burner according to claim 4 is characterized in that: the scroll casing shape pipe that line extends along fore-and-aft direction centered by the described air accelerating tube.
6. burner according to claim 5, it is characterized in that: be provided with the rotation direction spiral stream guidance blade consistent with described air accelerating tube rotation direction in the described air delivery pipe, described spiral stream guidance blade surrounds import and is communicated with, exports the spirality guide channel that is used for the air guide burner with the air outlet slit of air accelerating tube.
7. according to any described burner of claim 4 ~ 6, it is characterized in that: described fuel gas carrier pipe coaxial line is arranged in the air delivery pipe, described burner is the hollow bushing structure that axis extends along fore-and-aft direction, the port of export body of described fuel gas carrier pipe is sheathed on the body periphery of burner, the port of export body of the body of described burner and fuel gas carrier pipe surrounds for air, the premix space that fuel gas mixes, the port of export body of described air delivery pipe extends to the port of export body periphery of fuel gas carrier pipe, the port of export body of described fuel gas carrier pipe is provided with the radial perforation that is communicated with air delivery pipe tube chamber and premix space, and the body of described burner is provided with for the air with the burner periphery, fuel gas imports the burner body through hole in the burner.
8. burner according to claim 7, it is characterized in that: the endoporus of described burner is the taper that the aperture, rear end is little, the front end aperture is big, described burner body through hole has a plurality of, each burner body through hole evenly arranges circumferentially that around burner the axis of each burner body through hole all extends along fore-and-aft direction.
9. burner according to claim 8, it is characterized in that: the hole taper of described burner is 120 ° ~ 150 °.
10. burner according to claim 7, it is characterized in that: coaxial line is equipped with the observation tube that front end is communicated with the endoporus of burner in the described fuel gas carrier pipe, and the rear end of observation tube is provided with for the observation panel of observing burner flame situation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320152156 CN203190406U (en) | 2013-03-29 | 2013-03-29 | Combustor and air delivery structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320152156 CN203190406U (en) | 2013-03-29 | 2013-03-29 | Combustor and air delivery structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203190406U true CN203190406U (en) | 2013-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320152156 Expired - Lifetime CN203190406U (en) | 2013-03-29 | 2013-03-29 | Combustor and air delivery structure thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN203190406U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454785A (en) * | 2019-08-16 | 2019-11-15 | 乔永 | A kind of low NO |
| WO2021027094A1 (en) * | 2019-08-14 | 2021-02-18 | 江苏中圣园科技股份有限公司 | Combustion apparatus for upper combustion chamber of sleeve kiln |
-
2013
- 2013-03-29 CN CN 201320152156 patent/CN203190406U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021027094A1 (en) * | 2019-08-14 | 2021-02-18 | 江苏中圣园科技股份有限公司 | Combustion apparatus for upper combustion chamber of sleeve kiln |
| CN110454785A (en) * | 2019-08-16 | 2019-11-15 | 乔永 | A kind of low NO |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhao Ruibao Inventor after: An Shaoku Inventor after: Wu Guofu Inventor after: Wang Junjie Inventor after: Hu Chunying Inventor after: Ma Jianlu Inventor after: Xia Qiongyu Inventor after: Ding Yanxiang Inventor after: Liu Jianping Inventor after: Zhang Wenfeng Inventor before: Zhao Ruibao Inventor before: An Shaoku Inventor before: Wu Guofu Inventor before: Wang Junjie Inventor before: Hu Chunying Inventor before: Ma Jianlu Inventor before: Xia Qiongyu Inventor before: Ding Yanxiang Inventor before: Liu Jianping Inventor before: Zhang Wenfeng |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Card 1, 2, 3, 11 and 12, 20 / F, international financial center, no.16-3, Zhongshan Third Road, East District, Zhongshan City, Guangdong Province, 528400 Patentee after: Runzhi Technology Co.,Ltd. Address before: 45 000 1 No. 75 Science Avenue, Zhengzhou High-tech Industrial Development Zone, Henan Province Patentee before: ZHENGZHOU ZHENGRAN PRESSURE CONTROL TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130911 |