CN87210929U - Double screw leading hot gas burning nozzle with down flame - Google Patents
Double screw leading hot gas burning nozzle with down flame Download PDFInfo
- Publication number
- CN87210929U CN87210929U CN 87210929 CN87210929U CN87210929U CN 87210929 U CN87210929 U CN 87210929U CN 87210929 CN87210929 CN 87210929 CN 87210929 U CN87210929 U CN 87210929U CN 87210929 U CN87210929 U CN 87210929U
- Authority
- CN
- China
- Prior art keywords
- heating gas
- air
- coal gas
- burner
- double screw
- 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.)
- Ceased
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Abstract
The utility model relates to a double screw leading hot coal gas burning nozzle with down flame, which belongs to a novel energy-saving burner installed on a heating device which serves hot coal gas as fuel. On the basis of the prior art, the double screw leading hot gas burning nozzle with down flame is additionally provided with a volute-shaped hot coal gas screw device with an air ejector in the inner part and a blowdown device for eliminating tar and dust. The air and the hot coal gas respectively form stable screw jet which are thoroughly mixed with each other to form stable down flame to burn. The utility model has the advantages of high speed, energy saving, homogeneous hearth temperature, and improved heating quality.
Description
It is a kind of energy-saving burner of installing on the firing equipment of fuel that the utility model belongs to the heating gas.
More domestic enterprises are the firing equipment of fuel with the heating gas at present--forge furnace, heat-treatment furnace and some other smelting furnaces etc., the burner of installing on it mostly is the bushing type burner.This bushing type burner is that heating gas and air are axially sprayed to burner hearth from burner, and the flame of ejaculation is long, and air, heating gas mix bad, it is inhomogeneous to produce furnace temperature in heating process, phenomenons such as blank hot-spot, and make that furnace thermal efficiency is low, energy consumption is high, fire door is burned with anger seriously.
The purpose of this utility model is to improve the flame spray configuration, makes furnace temperature even, thermal efficiency height.
The volute type heating gas swirl-flow devices of air ejector and the blowdown apparatus of eliminating tar and dust in having set up on the basis of existing technology, the utility model are arranged.Can make air, heating gas form swirl jet, the two direction of rotation unanimity makes air burn while mixing with heating gas, and flat flame diameter increases and decreases with the size of two media swirl strength, and it is big that flame is sprawled face, and temperature is even.Flame blackness is big, can tempering, and handling safety.The heating gas ratio of combustion is more complete.Swirl jet effect in the flat flame burner mainly contains two aspects, the first is by the centrifugal action of vortex gas-flow, when swirling eddy leaves cyclone, gaseous mass has lost the restraining force of tube wall to it, the trend that gas particle directed tangent direction flows, when the swirl strength of air-flow surpassed a certain limit, centrifugal force increased, stream burst fully expansion, fuel burns in open and flat air-flow and obtains flat flame.It two is when vortex gas-flow forms flat flame, and the reflux gas amount increases, and the recirculating zone enlarges, and causes the central negative nip, makes the low-temperature burning product be back to the burner root, plays the effect of continuous igniting, smooth combustion.
Fig. 1 is bispin stream injection type heating gas flat flame burner front view.
Fig. 2 is bispin stream injection type heating gas flat flame burner vertical view.
As shown in the figure: blowdown apparatus 1, heating gas swirl-flow devices 2, air ejector 3, air pressure stabilizing chamber 4, air cyclone 5, heating gas eddy flow passage 6, air swirl passage 7, flat flame burner brick 8.
In the utility model, air ejector 3 places in the heating gas swirl-flow devices 2, and heating gas swirl-flow devices 2 communicates with heating gas eddy flow passage 6. The heating gas that enters heating gas swirl-flow devices 2 from steam line has the pressure air ejection through air ejector 3, makes heating gas be easy to stably eddy flow of mineralization pressure. In order to make gas purification, the prevention dirt stops up burner, also is provided with more than one blowdown apparatus.
Working method of the present utility model is: in normal operation, heating gas enters heating gas swirl-flow devices 2 by pipeline, by air ejector 3 air ejection of pressure low pressure heating gas will be arranged on a small quantity, makes it to reduce the heating gas pressure oscillation. After air enters 4 voltage stabilizings of air pressure stabilizing chamber, enter air swirl passage 7 by air cyclone 5, formed air swirl mixes the burning of formation flat flame with the heating gas eddy flow of heating gas eddy flow passage 6 at the bellmouth orifice place of flat flame burner 8. In view of heating gas pressure is low and unstable, tar and dust are many, and the spy is provided with blowdown apparatus 1.
Because flat flame burner can be realized completing combustion under near the theoretical air requirement, the excess air of therefore burning is few, can shorten the burner hearth heating-up time, reduces the amount of stored heat of stove inwall, improves furnace wall temperature, and the material firing rate is fast, and specific yield can improve.Therefore compared with prior art, obvious energy-saving effect is arranged.
Claims (4)
1, a kind of being applicable to the heating gas is the flat flame burner of installing on the firing equipment of fuel.This burner is made up of air cyclone and heating gas eddy flow passage 6, air swirl passage 7, flat flame burner brick 8.Feature of the present utility model is: be provided with air ejector 3, heating gas swirl-flow devices 2 and blowdown apparatus 1.
2, flat flame burner according to claim 1 is characterized in that: the heating gas swirl-flow devices 2 on this burner communicates for volute type and with heating gas eddy flow passage.
3, flat flame burner according to claim 1 is characterized in that: air ejector 3 places in the heating gas swirl-flow devices 2.
4, flat flame burner according to claim 1 is characterized in that: the blowdown apparatus that anti-dirt stops up is installed on the burner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87210929 CN87210929U (en) | 1987-07-23 | 1987-07-23 | Double screw leading hot gas burning nozzle with down flame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87210929 CN87210929U (en) | 1987-07-23 | 1987-07-23 | Double screw leading hot gas burning nozzle with down flame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87210929U true CN87210929U (en) | 1988-05-18 |
Family
ID=4825810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87210929 Ceased CN87210929U (en) | 1987-07-23 | 1987-07-23 | Double screw leading hot gas burning nozzle with down flame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87210929U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749708B (en) * | 2008-12-02 | 2011-07-27 | 同济大学 | High-temperature air-gas flat-flame burner |
-
1987
- 1987-07-23 CN CN 87210929 patent/CN87210929U/en not_active Ceased
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749708B (en) * | 2008-12-02 | 2011-07-27 | 同济大学 | High-temperature air-gas flat-flame burner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Co-applicant after: Shijiazhuang Vehicles Factory, Ministry of Railways |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CE01 | Termination of patent right | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: CO-APPLICANT TO: MINISTRY OF RAILWAYS SHIJIAZHUANG VEHICLE FACTORY |