CN202927840U - Nozzle suitable for super-long radiant tube - Google Patents
Nozzle suitable for super-long radiant tube Download PDFInfo
- Publication number
- CN202927840U CN202927840U CN 201220587948 CN201220587948U CN202927840U CN 202927840 U CN202927840 U CN 202927840U CN 201220587948 CN201220587948 CN 201220587948 CN 201220587948 U CN201220587948 U CN 201220587948U CN 202927840 U CN202927840 U CN 202927840U
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- CN
- China
- Prior art keywords
- combustion
- radiant tube
- guide pipe
- combustion chamber
- shell
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a nozzle suitable for a super-long radiant tube, which comprises a shell; ignition electrodes are installed at the front end of the shell; an air guide pipe is arranged at the rear end of the shell; a combustion-supporting air inlet is formed in the front side of the air guide pipe; a gas guide pipe is installed in the shell, an inlet of the gas guide pipe is formed in the shell, the gas guide pipe passes through the air guide pipe and extends to the rear side of the air guide pipe; a cyclone is installed at the output end of the gas guide pipe, and a combustion chamber is formed at the other end of the cyclone; a secondary air ring seam is formed between the combustion chamber and the air guide pipe; the radiant tube is sheathed on the rear side of the air guide pipe; and an opening of the combustion chamber faces the radiant tube. The nozzle has the beneficial effects that through reasonable structure transformation, in particular to the transformation of the combustion chamber, a multistage combustion technology effect is realized, the combustion is more complete, the flame temperature is uniform, and meanwhile, the combustion flame becomes longer, therefore, the nozzle is suitable for the special super-long radiant tube with a length of 10-50 meters.
Description
Technical field
The utility model relates to a kind of burner, particularly a kind of burner that is applicable to the overlength radiant tube.
Background technology
The burner burner is widely used in the industrial furnace heating and plays the effect that distributes fuel and combustion air and ejection burning, burner combustion mode commonly used is mainly premix half premix dual mode at present, combustion gas mixes with combustion air acutely, flame combustion speed is fast, flame is shorter, and temperature Centralized is not suitable for overlength radiant tube more than 10 meters; If when being used on the other hand the igniting of overlength radiant tube, resistance is large, be difficult for lighting.And combustion noise is large.
The utility model content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of burner that is applicable to the overlength radiant tube.
The technical scheme that its technical problem that solves the utility model adopts is:
a kind of burner that is applicable to the overlength radiant tube, comprise shell, the front end of described shell is equipped with ignitor, the rear end of described shell is provided with air conduit, the front side of this air conduit has combustion-supporting air inlet, in described shell, gas conduct pipe is installed, the import of wherein said gas conduct pipe is arranged on shell, described gas conduct pipe passes air conduit and extends to the rear side of air conduit, and the output of gas conduct pipe is equipped with cyclone, the other end of described cyclone is provided with the combustion chamber, leave the Secondary Air circumferential weld between this combustion chamber and air conduit, described air conduit rear side is set with radiant tube, described combustion chamber openings is towards radiant tube.
In order to make heating more abundant, have a wind hole of playing draught effect on described cyclone, described ignitor stretches into the combustion chamber by a wind hole.
In order to make flame can keep burning and be convenient to detecting, the side of described combustion chamber has stable flame hole.
The beneficial effects of the utility model are: this burner is by rational structure of modification, the particularly transformation of combustion chamber, match by combustion chamber, air conduit and Secondary Air circumferential weld, combustion air part enters the combustion chamber by a wind hole on cyclone, part forms second-time burning by the segment distance that the ejection of Secondary Air circumferential weld enters combustor exit and back thereof, realize the multistage combustion technique effect, burning more fully fully, homogeneous flame temperature, make simultaneously combustion flame become longer, reach 8～15 meters, be applicable to length at the overlength radiant tube of 10～50 meters.This burner power bracket is from 200KW to 1500KW, be applicable to various combustion gas and comprise natural gas, liquefied gas, town gas, coke-stove gas, high burnt gaseous mixture, producer gas etc., applicable furnace temperature scope also reaches 900 ℃, and igniting and combustion process noise are little, the pollutant discharge amounts such as nitrogen oxide are lower, meet the development trend of current energy-conserving and environment-protective.
Description of drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model.
The specific embodiment
With reference to Fig. 1, a kind of burner that is applicable to the overlength radiant tube comprises shell 1, and the front end of described shell 1 is equipped with ignitor 11, and wherein ignitor 11 can adopt bipolar electrode or single electrode design, also can increase the ultraviolet probe and carry out the flame detection.the rear end of described shell 1 is provided with air conduit 2, the front side of this air conduit 2 has combustion-supporting air inlet 21, in described shell 1, gas conduct pipe 3 is installed, the import 31 of wherein said gas conduct pipe 3 is arranged on shell 1, described gas conduct pipe 3 passes air conduit 2 and extends to the rear side of air conduit 2, and the output of gas conduct pipe 3 is equipped with cyclone 4, cyclone 4 is used for combustion air is guided and produce swirling eddy, the other end of described cyclone 4 is provided with combustion chamber 5, combustion gas and combustion air be 5 li mixed combustions in the combustion chamber, have a wind hole 8 of playing draught effect on described cyclone 4, described ignitor 11 stretches into combustion chamber 5 to carry out automatic ignition and ion detection by electrode hole, igniting is reliable, flame detection is stable.Leave Secondary Air circumferential weld 6 between this combustion chamber 5 and air conduit 2, described air conduit 2 rear sides are set with radiant tube 7, and radiant tube 7 one ends burn, and the other end is discharged fume, and described combustion chamber 5 openings are towards radiant tube 7.Combustion air part enters combustion chamber 5 by a wind hole 8, and part forms second-time burning by the segment distance that 6 ejections of Secondary Air circumferential weld enter combustion chamber 5 outlets and back thereof, compares with traditional nozzle, burns more abundant, and the combustion zone is also larger.
In order to make flame can keep burning and be convenient to detecting, the side of described combustion chamber 5 has stable flame hole 9.
When normal operation, combustion gas enters burner by import 31, sprays through cyclone 4 along gas conduct pipe 3.Combustion air is entered in air conduit 2 by the combustion-supporting air inlet 21 of part, wherein 10～30% combustion air enters to mix with combustion gas in combustion chamber 5 by a wind hole 8 and realizes imperfect combustion, the secondary combustion air is by 6 ejections of Secondary Air circumferential weld, enter 8～15 meters long segment distances in combustion chamber 5 outlets and back thereof and form second-time burning, thereby reach the purpose of completing combustion, the temperature that realizes simultaneously flame is more even, can not produce localized hyperthermia.At a high speed the flue gas of ejection, drain from radiant tube 7 tail ends, during have the part combustion air to enter combustion chamber 5 by stable flame hole 9 to participate in burning, make flame can keep burning and being convenient to detection.
The utility model matches by combustion chamber 5, air conduit 3 and Secondary Air circumferential weld 6, realizes the multistage combustion technique effect, and burning is more fully complete, and homogeneous flame temperature makes combustion flame become longer simultaneously, is applicable to overlength radiant tube special nozzle.
Claims (3)
1. burner that is applicable to the overlength radiant tube, comprise shell (1), the front end of described shell (1) is equipped with ignitor (11), it is characterized in that: the rear end of described shell (1) is provided with air conduit (2), the front side of this air conduit (2) has combustion-supporting air inlet (21), gas conduct pipe (3) is installed in described shell (1), the import (31) of wherein said gas conduct pipe (3) is arranged on shell (1), described gas conduct pipe (3) passes air conduit (2) and extends to the rear side of air conduit (2), and the output of gas conduct pipe (3) is equipped with cyclone (4), the other end of described cyclone (4) is provided with combustion chamber (5), leave Secondary Air circumferential weld (6) between this combustion chamber (5) and air conduit (2), described air conduit (2) rear side is set with radiant tube (7), described combustion chamber (5) opening is towards radiant tube (7).
2. a kind of burner that is applicable to the overlength radiant tube according to claim 1, it is characterized in that: have a wind hole (8) of playing draught effect on described cyclone (4), described ignitor (11) stretches into combustion chamber (5) by a wind hole (8).
3. a kind of burner that is applicable to the overlength radiant tube according to claim 1, it is characterized in that: the side of described combustion chamber (5) has stable flame hole (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220587948 CN202927840U (en) | 2012-11-08 | 2012-11-08 | Nozzle suitable for super-long radiant tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220587948 CN202927840U (en) | 2012-11-08 | 2012-11-08 | Nozzle suitable for super-long radiant tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202927840U true CN202927840U (en) | 2013-05-08 |
Family
ID=48217798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220587948 Withdrawn - After Issue CN202927840U (en) | 2012-11-08 | 2012-11-08 | Nozzle suitable for super-long radiant tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202927840U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966953A (en) * | 2012-11-08 | 2013-03-13 | 佛山市科皓燃烧设备制造有限公司 | Burner suitable for ultra-long radiant tube |
| CN105783027A (en) * | 2016-04-27 | 2016-07-20 | 新疆凝石工程技术有限公司 | Training simulation fire ignitor |
| CN108534138A (en) * | 2018-04-19 | 2018-09-14 | 杭州中景科技有限公司 | It is a kind of to be classified low NOx updrafts burner |
| CN108758629A (en) * | 2018-07-10 | 2018-11-06 | 东方电气集团东方锅炉股份有限公司 | low nitrogen oxide gas burner |
| CN108758629B (en) * | 2018-07-10 | 2024-04-12 | 东方电气集团东方锅炉股份有限公司 | Low-oxynitride gas burner |
-
2012
- 2012-11-08 CN CN 201220587948 patent/CN202927840U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966953A (en) * | 2012-11-08 | 2013-03-13 | 佛山市科皓燃烧设备制造有限公司 | Burner suitable for ultra-long radiant tube |
| CN102966953B (en) * | 2012-11-08 | 2015-09-09 | 佛山市科皓燃烧设备制造有限公司 | A kind of burner being applicable to ultra-long radiant tube |
| CN105783027A (en) * | 2016-04-27 | 2016-07-20 | 新疆凝石工程技术有限公司 | Training simulation fire ignitor |
| CN108534138A (en) * | 2018-04-19 | 2018-09-14 | 杭州中景科技有限公司 | It is a kind of to be classified low NOx updrafts burner |
| CN108534138B (en) * | 2018-04-19 | 2024-02-13 | 杭州中景科技有限公司 | Graded low NOx straight flame burner |
| CN108758629A (en) * | 2018-07-10 | 2018-11-06 | 东方电气集团东方锅炉股份有限公司 | low nitrogen oxide gas burner |
| CN108758629B (en) * | 2018-07-10 | 2024-04-12 | 东方电气集团东方锅炉股份有限公司 | Low-oxynitride gas burner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130508 Effective date of abandoning: 20150909 |
|
| RGAV | Abandon patent right to avoid regrant |