CN107782138A - A kind of tube furnace - Google Patents
A kind of tube furnace Download PDFInfo
- Publication number
- CN107782138A CN107782138A CN201610777789.0A CN201610777789A CN107782138A CN 107782138 A CN107782138 A CN 107782138A CN 201610777789 A CN201610777789 A CN 201610777789A CN 107782138 A CN107782138 A CN 107782138A
- Authority
- CN
- China
- Prior art keywords
- boiler tube
- furnace
- tube body
- spout
- furnace wall
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B17/00—Furnaces of a kind not covered by any preceding group
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
- F23D14/22—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
- F23D14/24—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other at least one of the fluids being submitted to a swirling motion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/48—Nozzles
- F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Environmental & Geological Engineering (AREA)
- Combustion Of Fluid Fuel (AREA)
Abstract
The invention discloses a kind of tube furnace, circumferentially it is equally spaced burner including boiler tube body, furnace bottom, the burner is provided with spout, the notch setting is that tangential spout carries out swirl flow combustion, the boiler tube body is provided with boiler tube, the boiler tube is equally spaced along the circumference near furnace wall, medium with water in boiler tube, flows through furnace wall from bottom to top and furnace high-temperature flue gas carries out heat exchange.Boiler tube body part installs steel cylinder, for strengthen the radiant heat transfer of bottom and flow of fluid wall attachment effect, keeping the stability and uniformity of swirl flow combustion flame.
Description
Technical field
The present invention relates to a kind of tube furnace field.
Background technology
At present, petrochemical plant is to provide the material such as oil and coalification heat energy, carries out subsequent physical or chemical reaction, adds
The device of work productive target product.Tubular heater is transferred heat to by producing hyperthermia radiation in burner hearth combust fuel
Flow working medium in burner hearth periphery or middle boiler tube, it is the main energy consumption element device of technical process, its energy-efficient characteristic will
Directly affect the energy consumption index of device.Burner is placed in burner hearth bottom or top by conventional design, and flame vertical is up or down
Burning, when sky is larger in burner hearth, there can be multiple burner nozzles to spray fuel and air mixed combustion in the same direction.In order to reach
The purpose of energy-conservation, the design of present tube furnace install convection section additional in radiation of burner hearth section exhanst gas outlet, and some exports in convection section
Air preheater is installed additional again to reduce the main power consumption device that exhaust gas temperature tube furnace is chemical industry, there is cylindrical shape and box-shaped two
Kind, its burner combustion heat-supplying mode is the direct current diffusion type combustion heat supply of multiple spouts.
The content of the invention
The purpose of the present invention is to overcome problem of the prior art, there is provided a kind of multi-port forms the combustion of rotational flow field in stove
Burning mode replaces traditional approach, passes through experiment and commercial Application, it was demonstrated that swirl flow combustion mode can improve fluid field in furnace and temperature
, augmentation of heat transfer efficiency, reduce energy consumption.
A kind of tube furnace of the present invention, including boiler tube body, furnace bottom are circumferentially equally spaced burner, the burning
Device is provided with spout, and the notch setting is that tangential spout carries out swirl flow combustion, and the boiler tube body is provided with boiler tube, the stove
Pipe is equally spaced along the circumference near furnace wall, medium with water in boiler tube, flows through furnace wall and furnace high-temperature cigarette from bottom to top
Gas carries out heat exchange.Boiler tube body part installs steel cylinder, for strengthen the radiant heat transfer of bottom and flow of fluid wall attachment effect,
Keep the stability and uniformity of swirl flow combustion flame.
Preferably, the boiler tube body periphery is provided with insulation furnace wall, and the insulation furnace wall upper end is provided with exhaust opening.
Preferably, the boiler tube body side is provided with water inlet, and valve is provided between water inlet and the boiler tube body.
Preferably, connected between the boiler tube body and insulation furnace wall by polymeric membrane.
The present invention compared with prior art, has advantages below.
Circumferentially it is equally spaced burner including boiler tube body, furnace bottom, the burner is provided with spout, the spray
Mouth is arranged to tangential spout and carries out swirl flow combustion, and the boiler tube body is provided with boiler tube, and the boiler tube is along the circumference near furnace wall
It is equally spaced, medium with water in boiler tube, flows through furnace wall from bottom to top and furnace high-temperature flue gas carries out heat exchange, with direct current
Burning is compared, and the combustion intensity and temperature distribution evenness during swirl flow combustion all increased, and fuel is at spout outlet with regard to energy
Rapid burning, residence time of the flue gas in burner hearth is short during straight flow combustion, and mixing intensity is weak, and fume centralized is in the cylinder stove of garden
Center portion position flows up so that cigarette speed is not high at the boiler tube wall near barrel, and heat transfer is not strong；Straight flow combustion is changed to eddy flow combustion
After burning, the gentle cigarette speed of cigarette near furnace wall greatly improves, so that heat transfer is greatly strengthened；
Due to the effect of eddy flow, the burning of lower furnace portion is strengthened, and whole flame height temperate zone moves down, and has partially removed direct current combustion
The low-temperature space of lower furnace portion during burning so that the Temperature Distribution along the high direction of stove is more reasonable；Take the simple side for installing spout cap additional
The upward multiple diffusion combustion spouts of direct current are improved to the upward arrangement form of circumference tangential tilt by method, and install center radiation additional
Cylinder, can form more uniform swirling eddy flame in stove；The rotation of air-flow can be controlled with the method at adjustment spout inclination angle
Intensity, so as to take into account augmentation of heat transfer and prevent the aspect of boiler tube scaling loss two.Boiler tube biography is strengthened in the case where not increasing heating load
Heat, the thermal efficiency of stove is improved up to 6%~10% or so；Because tube furnace is to absorb stove by tube wall with flow working medium in boiler tube
Interior flue gas heat is come for the purpose of completing the physicochemical change process of Bottomhole pressure working medium, therefore swirl flow combustion is relative to direct current
For burning, it may finally be attributed under the conditions of same chamber structure size and Working fluid flow, the efficiency of utilization of burner hearth
Greatly improve.
Brief description of the drawings
Fig. 1 is the structural representation of tube furnace of the present invention.
Embodiment
Explanation that the present invention will be further explained with reference to the accompanying drawings and examples.
As shown in figure 1, a kind of tube furnace, including boiler tube body 1, furnace bottom are circumferentially equally spaced burner 2, described
Burner 2 is provided with spout 3, and the spout 3 is arranged to tangential spout and carries out swirl flow combustion, and the boiler tube body 1 is provided with stove
Pipe 4, the boiler tube 4 are equally spaced along the circumference near furnace wall, boiler tube（4）Interior medium with water, flows through boiler tube from bottom to top
Wall and furnace high-temperature flue gas carry out heat exchange, and steel cylinder 5 is installed at the position of boiler tube body 1, for being passed with strengthening the radiation of bottom
Heat and flow of fluid wall attachment effect, keep the stability and uniformity of swirl flow combustion flame.
The periphery of boiler tube body 1 is provided with insulation furnace wall 6, and the insulation upper end of furnace wall 6 is provided with exhaust opening 7, the boiler tube
The side of body 1 is provided with water inlet 8, and valve 9, the boiler tube body 1 and insulation are provided between the water inlet 8 and boiler tube body 1
Connected between furnace wall 6 by polymeric membrane.
The above is example and explanation of the invention, but does not mean that the obtainable advantage of the present invention is so limited, all
It is wherein the one of may be to being realized in the simple transformation of structure, and/or some embodiments in practice process of the present invention the advantages of
It is individual or multiple in the protection domain of the application.
Claims (4)
- A kind of 1. tube furnace, it is characterised in that：Including boiler tube body（1）, furnace bottom is circumferentially equally spaced burner（2）, The burner（2）It is provided with spout（3）, the spout（3）It is arranged to tangential spout and carries out swirl flow combustion, the boiler tube body （1）It is provided with boiler tube（4）, the boiler tube（4）It is equally spaced along the circumference near furnace wall, boiler tube（4）Interior medium with water, from lower and On flow through furnace wall and furnace high-temperature flue gas and carry out heat exchange, the boiler tube body（1）Position is installed by steel cylinder（5）, it is used for To strengthen the radiant heat transfer of bottom and flow of fluid wall attachment effect, the stability and uniformity of swirl flow combustion flame are kept.
- 2. tube furnace according to claim 1, it is characterised in that:The boiler tube body（1）Periphery is provided with insulation furnace wall （6）, the insulation furnace wall（6）Upper end is provided with exhaust opening（7）.
- 3. tube furnace according to claim 1, it is characterised in that：The boiler tube body（1）Side is provided with water inlet（8）, The water inlet（8）With boiler tube body（1）Between be provided with valve（9）.
- 4. tube furnace according to claim 2, it is characterised in that：The boiler tube body（1）With being incubated furnace wall（6）Between lead to Cross polymeric membrane connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610777789.0A CN107782138A (en) | 2016-08-31 | 2016-08-31 | A kind of tube furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610777789.0A CN107782138A (en) | 2016-08-31 | 2016-08-31 | A kind of tube furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107782138A true CN107782138A (en) | 2018-03-09 |
Family
ID=61450733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610777789.0A Pending CN107782138A (en) | 2016-08-31 | 2016-08-31 | A kind of tube furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107782138A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365992A (en) * | 2020-03-13 | 2020-07-03 | 武汉能望科技有限公司 | Tube furnace capable of adjusting heat distribution ratio |
-
2016
- 2016-08-31 CN CN201610777789.0A patent/CN107782138A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365992A (en) * | 2020-03-13 | 2020-07-03 | 武汉能望科技有限公司 | Tube furnace capable of adjusting heat distribution ratio |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180309 |
|
| WD01 | Invention patent application deemed withdrawn after publication |