CN2116836U - Spherical pre-combustion burner - Google Patents
Spherical pre-combustion burner Download PDFInfo
- Publication number
- CN2116836U CN2116836U CN 91231793 CN91231793U CN2116836U CN 2116836 U CN2116836 U CN 2116836U CN 91231793 CN91231793 CN 91231793 CN 91231793 U CN91231793 U CN 91231793U CN 2116836 U CN2116836 U CN 2116836U
- Authority
- CN
- China
- Prior art keywords
- chamber
- combustion chamber
- oil
- burner
- combustion
- 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.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 17
- 239000003921 oil Substances 0.000 abstract description 25
- 239000000295 fuel oil Substances 0.000 abstract description 4
- 239000000571 coke Substances 0.000 abstract 1
- 238000005242 forging Methods 0.000 abstract 1
- 239000003595 mist Substances 0.000 description 10
- 230000008016 vaporization Effects 0.000 description 8
- 238000009834 vaporization Methods 0.000 description 7
- 238000001704 evaporation Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Landscapes
- Spray-Type Burners (AREA)
- Nozzles For Spraying Of Liquid Fuel (AREA)
Abstract
A spherical pre-combustion type burner is characterized in that a spherical pre-combustion chamber is additionally arranged in a main combustion chamber, and a rotational flow air guide chamber with an included angle of 80-90 degrees formed by the air flow direction and the axial direction of a main combustion chamber is additionally arranged at one end, connected with a nozzle, of the combustion chamber. The main combustion chamber adopts an expansion structure and carries out secondary mixed combustion. The device has simple structure, low noise and uniform flame, is suitable for medium and low temperature industrial oil furnaces such as thermal furnaces, kilns, forgings and the like which require uniform temperature, and does not coke heavy oil and residual oil.
Description
A kind of billiard table shape preheating type burner belongs to the burner class of drop or the direct spirt of evaporating liquid combustion zone.
Known burner, as 892119640 oil film evaporating burners of being announced, be by a part of fuel oil being sprayed directly on the central authorities of burner inner liner, make oil gas mixing, vaporization after-combustion, and another part mist of oil forms oil film after being dispersed in the burner inner liner wall, the axial wind that dependence sprays into makes the oil film after-combustion of progressively vaporizing, and the oil film of vaporization relies on the footpath on the wall aweather to burn totally.The burner of this class formation, though quick heating is arranged, advantages of simple structure and simple, but still following shortcoming is arranged: the one, fuel oil is sprayed directly on and forms oil film in the burner inner liner, though axial wind vaporization is arranged, but poor when oil, when the low vaporization effect of air pressure was bad, the oil film on the tube wall surface was shaped inhomogeneous, so be easy to generate coking phenomenon, the 2nd, directly burning in burner inner liner, the outlet temperature of burner inner liner is higher, is difficult to the strict industrial furnace of adaptive temperature; The 3rd, mist of oil is sprayed directly on the barrel, and chamber wall temperature is low, starting ignition is difficult.
The purpose of this utility model is the deficiency that overcomes foregoing invention, provides a kind of low pressure starting easily, has the burner of half billiard table precombustion chamber.
Characteristics of the present utility model are: the inside in burner (3), the precombustion chamber (2) that half billiard table or interior frustum are set up in the front end position of close shower nozzle (5), establish an eddy flow air guiding chamber (1) in main chamber (3) outer end, the airflow direction of eddy flow air guiding chamber (1) and main chamber (3) axial becomes 80～90 ° of angles, almost mist of oil is formed oil film spilling under the action of centrifugal force on the locular wall face of precombustion chamber (2) with the axially perpendicular air-flow of main chamber (3), the mist of oil in space is a vaporization combustion, and main chamber (3) is an expanding or horn.
This is reasonable with new design.Simple in structure, start easily burning heavy oil, residual oil noncoking for low temperature, low-tension ignition.Owing to adopted the precombustion chamber (2) of hemisphere platform, the chamber wall temperature height, flame is even, be specially adapted to forge, heat treatment, Beijing enamel kiln etc. require temperature uniformly in, low temperature burns the industrial furnace of reducing flame.
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the utility model structure principle chart.
1-eddy flow air guiding chamber among the figure, 2-preheating chamber, 3-main chamber, 4-air admission hole (groove), 5-shower nozzle, 6-low pressure tuyere.
Embodiment one:
Spray to billiard table shape (or interior taper type) precombustion chamber 2 through the mixed mist of oil of multistage atomizing by shower nozzle 5, because the airflow direction of eddy flow air guiding chamber 5 axially becomes 80～90 ° of angles with main chamber 3, mist of oil after the atomizing is under the centrifugal action of spiral air flow, air-flow is at first big with granularity in the mist of oil, the heavy elaioleucite of quality falls to spill and form the very thin oil film of one deck on the wall of preheating chamber 2, and most of atomization quality is good, the tiny mist of oil of granularity moves under the effect of wind-force, behind the ignition trigger, at the aerial fine oil mist of the precombustion chamber formation flame that at first catches fire, cause the oil film evaporating burning on precombustion chamber 2 walls thus, increase along with the flame amount, temperature in the preheating chamber 2 improves rapidly, when chamber wall temperature reaches the fuel film vaporization temperature, startup stage, finish, burning enters normal work stage, and the thermal current behind the oil film evaporating mixes formation eddy current mist of oil and advances to main chamber 3 with the low-pressure air that enters the combustion chamber from low pressure tuyere 6.Be the capacity of returns and the amount of entrainmenting that increases thermal current in the stove, strengthen convection heat transfer' heat-transfer by convection, raising heat utilization efficiency and burning reducing flame, main chamber 3 have adopted horn (or expanding) structure, and opened the hole 4(groove of several 0.2～0.4mm at preheating chamber 2 later positions), carry out secondary air, so, in case the thermal current of precombustion chamber 2 enters the just diffusion rapidly of main chamber 3 backs.Along with the continuation of burning, fuel film vaporization speed is faster, the burning liberated heat is also bigger.Especially after entering main chamber 3, mix through secondary-atomizing, make it be completed into flame status, the ejection burner enters the stove internal combustion under the promotion of air-flow.
Adopt burner of the present utility model, service condition is less demanding, strong adaptability, and the good even flame of reproducibility flame quality of producing, and combustion stability is good, and main chamber shortens 1/3rd than existing burner, and noise is low.
Claims (2)
1, a kind of billiard table shape preheating type burner contains nozzle, eddy flow air guiding chamber, combustion chamber, it is characterized in that:
(1) inside of (3) in the combustion chamber, the precombustion chamber that half billiard table or interior frustum are set up in the front end position of close shower nozzle (5).
(2) be provided with eddy flow air guiding chamber in the outer end of main chamber, the airflow direction of eddy flow air guiding chamber becomes 80～90 ° of angles with main chamber.
2,, it is characterized in that main chamber is an expanding according to the described burner of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91231793 CN2116836U (en) | 1991-12-28 | 1991-12-28 | Spherical pre-combustion burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91231793 CN2116836U (en) | 1991-12-28 | 1991-12-28 | Spherical pre-combustion burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2116836U true CN2116836U (en) | 1992-09-23 |
Family
ID=4936962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91231793 Granted CN2116836U (en) | 1991-12-28 | 1991-12-28 | Spherical pre-combustion burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2116836U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101566345B (en) * | 2009-03-17 | 2010-09-08 | 王文庭 | Flame guider |
| CN106152124A (en) * | 2014-12-19 | 2016-11-23 | 洪序明 | Bundle fire noise-reduction energy-saving combustion chamber for compression combustion furnace |
| CN114294676A (en) * | 2021-12-16 | 2022-04-08 | 北京动力机械研究所 | Precombustion chamber structure with wide ignition boundary |
-
1991
- 1991-12-28 CN CN 91231793 patent/CN2116836U/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101566345B (en) * | 2009-03-17 | 2010-09-08 | 王文庭 | Flame guider |
| CN106152124A (en) * | 2014-12-19 | 2016-11-23 | 洪序明 | Bundle fire noise-reduction energy-saving combustion chamber for compression combustion furnace |
| CN106196047A (en) * | 2014-12-19 | 2016-12-07 | 洪序明 | Flame anti-rotation noise-reduction energy-saving combustion chamber for compression combustion furnace |
| CN106196047B (en) * | 2014-12-19 | 2019-01-18 | 洪序明 | The anti-rotation noise-reduction energy-saving furnace core of flame for compression combustion furnace |
| CN106152124B (en) * | 2014-12-19 | 2019-01-18 | 洪序明 | Beam fire noise-reduction energy-saving furnace core for compression combustion furnace |
| CN114294676A (en) * | 2021-12-16 | 2022-04-08 | 北京动力机械研究所 | Precombustion chamber structure with wide ignition boundary |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |