CN210602780U - Coil pipe type radiation heating furnace tube - Google Patents
Coil pipe type radiation heating furnace tube Download PDFInfo
- Publication number
- CN210602780U CN210602780U CN201921149831.XU CN201921149831U CN210602780U CN 210602780 U CN210602780 U CN 210602780U CN 201921149831 U CN201921149831 U CN 201921149831U CN 210602780 U CN210602780 U CN 210602780U
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- Prior art keywords
- tube
- boiler tube
- convection
- radiation
- chamber
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- Expired - Fee Related
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- 230000005855 radiation Effects 0.000 title claims abstract description 54
- 238000010438 heat treatment Methods 0.000 title claims abstract description 35
- 239000002184 metal Substances 0.000 claims abstract description 16
- 238000010521 absorption reaction Methods 0.000 claims description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 10
- 239000003546 flue gas Substances 0.000 abstract description 10
- 238000004939 coking Methods 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 description 10
- 239000003921 oil Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000011280 coal tar Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000011269 tar Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The utility model provides a coil pipe formula radiant heating boiler tube, including setting up radiation boiler tube and convection current boiler tube in the furnace body, the furnace body includes radiation chamber and convection current room, radiation chamber bottom is equipped with a plurality of combustors, the radiation boiler tube is fixed to be set up in the middle part of radiation chamber, the radiation boiler tube is the spiral coil pipe who encircles the radiation chamber inner wall, the convection current boiler tube includes a plurality of annular horizontal pipes, arbitrary adjacent two horizontal pipes pass through the elbow and connect, the pipe wall of horizontal pipe is equipped with metal fin, metal fin is the multilayer helix structure of encircleing the horizontal pipe outer wall, the upper end of convection current boiler tube extends to the upper portion of convection current room, the lower extreme stretches into the inside bottom that just extends to the radiation chamber of radiation boiler tube, and convection current boiler tube lower extreme connection radiation boiler tube lower extreme, the convection current boiler tube upper end extends the furnace body and forms the. The utility model has the advantages that: the contact area of the convection furnace tube and the high-temperature flue gas is increased, the flue gas is fully utilized, the heating efficiency is improved, and the coking probability is reduced.
Description
Technical Field
The utility model relates to a metallurgical coking equipment technical field especially relates to a coil pipe formula radiant heating boiler tube.
Background
The tubular heating furnace is a process heating furnace used in industries such as petroleum refining, petrochemical industry, coal chemical industry, tar processing, crude oil transportation and the like, a flowing medium of a heated substance in the tube is gas or liquid, the tubular heating furnace is the most basic and essential equipment and is also key equipment which plays a determining factor on the production capacity of the petrochemical industry, and the heat load of the tubular heating furnace directly determines the processing capacity of a petrochemical device, so that the improvement of the heat load of the heating furnace is particularly important under the condition of the same appearance structure. In the convection chamber of the existing tubular heating furnace, a convection furnace tube is often in direct contact with high-temperature flue gas in the furnace to heat fluid in the convection furnace tube, the heat efficiency is low due to limited contact area and poor heating effect, and coking often occurs due to insufficient heating of the fluid which just enters the convection furnace tube.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the present invention provides a coil type radiant heating furnace tube.
The embodiment of the utility model provides a coil pipe type radiant heating furnace tube, which comprises a radiation furnace tube and a convection furnace tube arranged in a furnace body, wherein the furnace body comprises a radiation chamber at the lower part and a convection chamber at the upper part, a plurality of burners are arranged at the bottom of the radiation chamber, the radiation furnace tube is fixedly arranged at the middle part of the radiation chamber, the radiation furnace tube is a spiral coil pipe surrounding the inner wall of the radiation chamber, the convection furnace tube is arranged at the middle part of the furnace body and comprises a plurality of annular horizontal tubes, all the horizontal tubes are arranged at intervals and horizontally, any two adjacent horizontal tubes are connected through an elbow, the pipe wall of each horizontal tube is provided with a metal fin, the metal fin is a multilayer spiral line structure surrounding the outer wall of the horizontal tube, a heat absorption space is formed between the two adjacent layers of the metal fin, and the upper end of the convection furnace tube extends to the upper part of the, the lower end of the convection furnace tube extends into the radiation furnace tube and extends to the bottom of the radiation chamber, the lower end of the convection furnace tube is connected with the lower end of the radiation furnace tube, the upper end of the convection furnace tube extends out of the outer wall of the furnace body to form a rich oil inlet, and the upper end of the radiation furnace tube extends out of the outer wall of the furnace body to form a rich oil outlet.
Furthermore, the convection chamber is provided with a tube plate, the tube plate is vertically arranged, two sides of the tube plate are fixed on the inner wall of the convection chamber, each horizontal tube penetrates through the tube plate and is fixedly connected with the tube plate, and the tube plate vertically and equally divides all the horizontal tubes.
Furthermore, the furnace body is a stepped cylinder, a circular upper port is arranged at the upper end of the radiation chamber, the diameter of the upper port is smaller than the inner diameter of the horizontal pipe, and the upper port and the horizontal pipe share the same axis.
Furthermore, the burners are heating nozzles, all the burners penetrate and are fixed at the bottom of the radiation chamber, and the upper ends of all the burners face to the middle of the convection furnace tube and are uniformly distributed and arranged into a circle.
Further, a manhole is arranged on the outer wall of the radiation chamber.
The embodiment of the utility model provides a beneficial effect that technical scheme brought is: the utility model discloses a coil pipe formula radiant heating boiler tube, metal fin's adjacent two-layer between form the heat absorption space, metal fin absorbs the heat of the indoor high temperature flue gas of convection current, and then heats the fluid in the horizontal tube, increases the area of contact of convection current boiler tube and high temperature flue gas, and the flue gas that make full use of fuel burning produced improves the comprehensive heating efficiency of heating furnace effectively, and strengthens the heating effect to just getting into the fluid in the convection current boiler tube, can reduce the probability of fluid coking.
Drawings
FIG. 1 is a schematic view of a coil type radiant heating furnace tube according to the present invention;
FIG. 2 is a schematic view of the horizontal tube 10 of the radiant furnace tube 4 of FIG. 1.
In the figure: 1-radiation chamber, 2-convection chamber, 3-radiation furnace tube, 4-convection furnace tube, 5-tube plate, 6-upper port, 7-rich oil inlet, 8-rich oil outlet, 9-manhole, 10-horizontal hole, 11-metal fin and 12-heat absorption space.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be further described below with reference to the accompanying drawings.
Referring to fig. 1, an embodiment of the present invention provides a coil type radiant heating furnace tube, a radiant furnace tube and a convection furnace tube disposed in a furnace body.
The furnace body is a ladder cylinder with a narrow upper part and a wide lower part, and comprises a radiation chamber 1 at the lower part and a convection chamber 2 at the upper part.
The convection furnace tube 4 is arranged in the middle of the furnace body, the lower part of the convection furnace tube 4 extends into the accommodating space in the middle of the radiation furnace tube 3, the upper part of the convection furnace tube extends to the upper part of the convection chamber 2, the convection furnace tube 4 comprises a plurality of annular horizontal tubes 10, all the horizontal tubes 10 are arranged at intervals and horizontally, and any two adjacent horizontal tubes 10 are connected through an elbow.
Referring to fig. 2, the wall of each horizontal tube 10 is provided with a metal fin 11, the metal fin 11 has a multi-layer helical line structure surrounding the outer wall of the horizontal tube, a heat absorption space 12 is formed between two adjacent layers of the metal fin 11, and the heat absorption space 12 absorbs heat of high-temperature flue gas in the furnace through two layers of the metal fin 11 and the wall of the horizontal tube 10, so that the heat absorption area is greatly increased, and the heating effect on the horizontal tube 10 can be effectively improved. In this embodiment, the vertical distances between two adjacent horizontal tubes 10 are equal. The horizontal pipe 10 is horizontally arranged, so that the flow velocity of fluid in the pipe is reduced, and the heat exchange time is prolonged.
In order to fix the convection furnace tube 4 conveniently, a tube plate 5 is arranged in the convection chamber 2, the tube plate 5 is vertically arranged, two sides of the tube plate 5 are fixed on the inner wall of the convection chamber 2 through welding, each horizontal tube penetrates through the tube plate 5 and is fixedly connected with the tube plate, and the tube plate 5 vertically and equally divides all the horizontal tubes 10.
In order to facilitate the flue gas in the radiation chamber 1 to fully contact the convection furnace tube 4 when rising, a circular upper port 6 is arranged at the upper end of the radiation chamber 1, the upper port 6 is communicated with the lower part of the convection chamber 2, the diameter of the upper port 6 is smaller than the inner diameter of the horizontal tube 10, and the upper port 6 and the horizontal tube 10 are coaxial, so that the high-temperature flue gas is directly opposite to the convection furnace tube 4 when rising.
The horizontal pipe at the lowest end of the convection furnace tube 4 extends to the bottom of the radiation chamber 1 and is connected with the lower end of the radiation furnace tube 3, the horizontal pipe at the highest end of the convection furnace tube 4 extends out of the outer wall of the furnace body from the upper part of the convection chamber 2 to form an oil-rich inlet 7, and the upper end of the radiation furnace tube 3 extends out of the outer wall of the furnace body from the upper part of the radiation chamber 1 to form an oil-rich outlet 8.
The bottom of the radiation chamber 1 is provided with a plurality of burners which are heating nozzles, all the burners penetrate and are fixed at the bottom of the radiation chamber 1, and the upper ends of all the burners face to the middle part of the convection furnace tube 4 and are uniformly distributed and arranged into a circle. The burner can heat the radiant coils 3 and the convection coils 4 simultaneously. The outer wall of the radiation chamber 1 is provided with a manhole 9, and the manhole 9 is used for overhauling the furnace body.
The coil type radiant heating furnace tube of the utility model inputs rich oil or coal tar to wait for heating fluid from the rich oil inlet 7, the fluid slowly flows through each layer of horizontal tubes 10 of the convection furnace tube 4 from top to bottom in sequence, flows to the bottom of the radiation chamber 1 to enter the radiation furnace tube 3 and then rises to the rich oil outlet 8 to flow out, the radiant furnace tubes 3 and the convection furnace tubes 4 are heated simultaneously by the burner, and when high-temperature flue gas generated in the furnace body enters the convection chamber 2 and flows through each heat absorption space 12, contacts with the metal fins 11 on the outer wall of the horizontal tube 10, increases the heat absorption area, fully utilizes the smoke generated by fuel combustion, effectively improves the comprehensive heating efficiency of the heating furnace, and the heating effect of the fluid which just enters the convection furnace tube 4 is enhanced, and the probability of fluid coking can be reduced.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The features of the embodiments and embodiments described herein above may be combined with each other without conflict.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (5)
1. The utility model provides a coil pipe formula radiant heating boiler tube, is including setting up radiation boiler tube and convection current boiler tube in the furnace body, the furnace body includes the radiation chamber of lower part and the convection current chamber on upper portion, radiation chamber bottom is equipped with a plurality of combustors, its characterized in that: the radiant boiler tube is fixedly arranged in the middle of the radiant chamber, the radiant boiler tube is a spiral coil pipe surrounding the inner wall of the radiant chamber, the convection boiler tube is arranged in the middle of the boiler body and comprises a plurality of annular horizontal tubes, all the horizontal tubes are arranged at intervals up and down and horizontally, any two adjacent horizontal tubes are connected through an elbow, the wall of each horizontal tube is provided with a metal fin, the metal fin is a multilayer spiral line structure surrounding the outer wall of the horizontal tube, a heat absorption space is formed between every two adjacent layers of the metal fins, the upper end of the convection boiler tube extends to the upper part of the convection chamber, the lower end of the convection boiler tube extends into the interior of the radiant boiler tube and extends to the bottom of the radiant chamber, the lower end of the convection boiler tube is connected with the lower end of the radiant boiler tube, and the upper end of the convection boiler tube extends out of the outer, the upper end of the radiation furnace tube extends out of the outer wall of the furnace body to form an oil-rich outlet.
2. The coil radiant heating furnace of claim 1, wherein: the convection chamber is provided with a tube plate, the tube plate is vertically arranged, two sides of the tube plate are fixed on the inner wall of the convection chamber, each horizontal tube penetrates through the tube plate and is fixedly connected with the tube plate, and the tube plate vertically and equally divides all the horizontal tubes.
3. The coil radiant heating furnace of claim 1, wherein: the furnace body is a stepped cylinder, a circular upper port is arranged at the upper end of the radiation chamber, the diameter of the upper port is smaller than the inner diameter of the horizontal pipe, and the upper port and the horizontal pipe are coaxial.
4. The coil radiant heating furnace of claim 1, wherein: the burners are heating nozzles, all the burners penetrate and are fixed at the bottom of the radiation chamber, and the upper ends of all the burners face to the middle part of the convection furnace tube and are uniformly distributed and arranged into a circle.
5. The coil radiant heating furnace of claim 1, wherein: the outer wall of the radiant chamber is provided with a manhole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921149831.XU CN210602780U (en) | 2019-07-19 | 2019-07-19 | Coil pipe type radiation heating furnace tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921149831.XU CN210602780U (en) | 2019-07-19 | 2019-07-19 | Coil pipe type radiation heating furnace tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210602780U true CN210602780U (en) | 2020-05-22 |
Family
ID=70698313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921149831.XU Expired - Fee Related CN210602780U (en) | 2019-07-19 | 2019-07-19 | Coil pipe type radiation heating furnace tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210602780U (en) |
-
2019
- 2019-07-19 CN CN201921149831.XU patent/CN210602780U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200522 |