CN206019326U - A kind of tube furnace - Google Patents
A kind of tube furnace Download PDFInfo
- Publication number
- CN206019326U CN206019326U CN201621019008.3U CN201621019008U CN206019326U CN 206019326 U CN206019326 U CN 206019326U CN 201621019008 U CN201621019008 U CN 201621019008U CN 206019326 U CN206019326 U CN 206019326U
- 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.)
- Expired - Fee Related
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Classifications
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- 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
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- Combustion Of Fluid Fuel (AREA)
Abstract
The utility model 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 carries out swirl flow combustion for tangential spout, 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, and flowing through furnace wall and furnace high-temperature flue gas from bottom to top carries out heat exchange.Boiler tube body part installs steel cylinder, for strengthen radiant heat transfer and the flow of fluid wall attachment effect of bottom, keeping the stability and uniformity of swirl flow combustion flame.
Description
Technical field
This utility model is related to a kind of tube furnace field.
Background technology
At present, petrochemical plant is to provide the material heat energy such as oil and coalification, carries out subsequent physical or chemical reaction, plus
The device of work productive target product.Tubular heater passes through to produce hyperthermia radiation in burner hearth combust fuel, transfers heat to
Flow working medium in burner hearth periphery or middle boiler tube, is the main energy consumption element device of technical process, and 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 empty larger in burner hearth, can have 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 had exports in convection section
Install air preheater again additional to reduce the main power consumption device that exhaust gas temperature tube furnace is chemical industry, have 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.
Utility model content
The purpose of this utility model is to overcome problem of the prior art, there is provided a kind of multi-port forms rotational flow field in stove
Combustion system replacing traditional approach, by test and commercial Application, it was demonstrated that swirl flow combustion mode can improve fluid field in furnace and
Temperature field, augmentation of heat transfer efficiency, reducing energy consumption.
A kind of tube furnace of the present utility model, is circumferentially equally spaced burner including boiler tube body, furnace bottom, described
Burner is provided with spout, and the notch setting carries out swirl flow combustion for tangential spout, and the boiler tube body is provided with boiler tube, institute
State boiler tube to be equally spaced along the circumference near furnace wall, medium with water in boiler tube, flow through from bottom to top high in furnace wall and stove
Warm flue gas carries out heat exchange.Boiler tube body part installs steel cylinder, for the radiant heat transfer and the attached wall of flow of fluid of enhancing bottom
Effect, keeps the stability and uniformity of swirl flow combustion flame.
Preferably, the boiler tube body periphery is provided with insulation furnace wall, and insulation furnace wall upper end is provided with exhaust opening.
Preferably, the boiler tube body side is provided with water inlet, is provided with valve between the water inlet and boiler tube body.
Preferably, connected by polymeric membrane between the boiler tube body and insulation furnace wall.
This utility model compared with prior art, with advantages below.
Circumferentially it is equally spaced burner including boiler tube body, furnace bottom, the burner is provided with spout, the spray
Mouth is set to tangential spout carries out swirl flow combustion, and the boiler tube body is provided with boiler tube, circumference of the boiler tube near furnace wall
It is equally spaced, medium with water in boiler tube, flowing through furnace wall and furnace high-temperature flue gas from bottom to top 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, during straight flow combustion, the time of staying of the flue gas in burner hearth is short, and mixing intensity is weak, and fume centralized is in the cylinder stove of garden
Center portion position flows up so that at the boiler tube wall near barrel, cigarette speed is not high, conducts heat not strong；Straight flow combustion is changed to eddy flow combustion
After burning, the gentle cigarette speed of cigarette near furnace wall is greatly improved, so that heat transfer is greatly strengthened；
As the effect of eddy flow, the burning of lower furnace portion are strengthened, whole flame is thermal zone to be moved down, and has partially removed straight
The low-temperature space of lower furnace portion during stream burning so that the Temperature Distribution along the high direction of stove is more reasonable；Take the letter for installing spout cap additional
Multiple diffusion combustion spouts of the folk prescription method by direct current upwards are improved to circumference tangential tilt arrangement form upwards, and install center additional
Radiative cylinder, can form more uniform swirling eddy flame in stove；Air-flow can be controlled with the method at adjustment spout inclination angle
Spin intensity, in terms of taking into account augmentation of heat transfer and preventing boiler tube scaling loss two.Stove is strengthened in the case where heating load is not increased
Pipe conducts heat, and improves the thermal efficiency of stove up to 6%～10% or so；As tube furnace is inhaled by tube wall with flow working medium in boiler tube
Inner flue gas of the stove heat is received come for the purpose of completing the physicochemical change process of Bottomhole pressure working medium, therefore swirl flow combustion relative to
For straight flow combustion, may finally be attributed under the conditions of same chamber structure size and Working fluid flow, the heat utilization of burner hearth
Efficiency is greatly improved.
Description of the drawings
Structural representations of the Fig. 1 for this utility model tube furnace.
Specific embodiment
Explanation is further explained to this utility model with reference to the accompanying drawings and examples.
As shown in figure 1, a kind of tube furnace, circumferentially it is equally spaced burner 2 including boiler tube body 1, furnace bottom, described
Burner 2 is provided with spout 3, and the spout 3 is set 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 1 position of boiler tube body, for being passed with the radiation for strengthening bottom
Heat and flow of fluid wall attachment effect, keep the stability and uniformity of swirl flow combustion flame.
1 periphery of boiler tube body is provided with insulation furnace wall 6, and 6 upper end of insulation furnace wall is provided with exhaust opening 7, the boiler tube
1 side of body is provided with water inlet 8, is provided with valve 9, the boiler tube body 1 and insulation between the water inlet 8 and boiler tube body 1
Connected by polymeric membrane between furnace wall 6.
The above is example of the present utility model and explanation, but does not mean that the obtainable advantage of this utility model receives this
Limit, may be excellent to realized in the simple transformation of structure, and/or some embodiments in every this utility model practice process
Wherein one or more of point are in the protection domain of the application.
Claims (4)
1. a kind of 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）Being set to tangential spout carries out swirl flow combustion, the boiler tube body
（1）It is provided with boiler tube（4）, the boiler tube（4）Circumference near furnace wall is equally spaced, 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 radiant heat transfer and the flow of fluid wall attachment effect of bottom, the stability and uniformity of swirl flow combustion flame is 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 insulation furnace wall（6）Between lead to
Cross polymeric membrane connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621019008.3U CN206019326U (en) | 2016-08-31 | 2016-08-31 | A kind of tube furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621019008.3U CN206019326U (en) | 2016-08-31 | 2016-08-31 | A kind of tube furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206019326U true CN206019326U (en) | 2017-03-15 |
Family
ID=58256497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621019008.3U Expired - Fee Related CN206019326U (en) | 2016-08-31 | 2016-08-31 | A kind of tube furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206019326U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106940088A (en) * | 2017-03-28 | 2017-07-11 | 天津辰创环境工程科技有限责任公司 | A kind of squirrel-cage heating furnace |
-
2016
- 2016-08-31 CN CN201621019008.3U patent/CN206019326U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106940088A (en) * | 2017-03-28 | 2017-07-11 | 天津辰创环境工程科技有限责任公司 | A kind of squirrel-cage heating furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170315 Termination date: 20170831 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |