CN210602779U - Integral radiant tube furnace - Google Patents
Integral radiant tube furnace Download PDFInfo
- Publication number
- CN210602779U CN210602779U CN201921145404.4U CN201921145404U CN210602779U CN 210602779 U CN210602779 U CN 210602779U CN 201921145404 U CN201921145404 U CN 201921145404U CN 210602779 U CN210602779 U CN 210602779U
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- CN
- China
- Prior art keywords
- furnace
- radiation
- convection
- tube
- chamber
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- 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
Links
- 230000005855 radiation Effects 0.000 claims abstract description 63
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 230000002035 prolonged effect Effects 0.000 abstract description 6
- 238000004939 coking Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 15
- 239000012530 fluid Substances 0.000 description 4
- 230000004308 accommodation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000011280 coal tar Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000007788 liquid Substances 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
- 230000008569 process Effects 0.000 description 1
- 239000011269 tar Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Abstract
The utility model provides an integral radiant tube furnace, which comprises a furnace body, radiation boiler tube and convection current boiler tube, the furnace body includes the radiation room and the convection current room on upper portion of lower part, radiation bottom of the room portion is equipped with a plurality of combustors, the radiation boiler tube is fixed to be set up in the middle part of radiation room, the spiral coil pipe of radiation boiler tube for encircleing the indoor wall of radiation, the convection current boiler tube sets up in the middle part of furnace body, the convection current boiler tube includes a plurality of annular horizontal pipes, all horizontal pipes stagger from top to bottom, arbitrary adjacent two horizontal pipes pass through the elbow and connect, the convection current boiler tube upper end extends to the upper portion of convection current room, the lower extreme stretches into the inside bottom that just extends to the radiation room of radiation boiler tube, and the radiation boiler tube lower extreme is connected to convection current boiler tube lower extreme, the furnace body. The utility model has the advantages that: the heat exchange area is increased, the heating time is prolonged, the heating efficiency is improved, the coking probability can be reduced, and the production capacity is improved.
Description
Technical Field
The utility model relates to a metallurgical coking equipment technical field especially relates to an integral radiant tube furnace.
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. According to the development status of petrochemical equipment, the heat load of a heating furnace in the petrochemical industry is closely related to the heat exchange efficiency of a furnace tube of a radiation chamber of the heating furnace, and the conventional radiation chamber of the heating furnace has the defects of low heat efficiency, unsatisfactory heating effect and limitation on the production capacity of a device because the heat exchange area is influenced due to the unreasonable layout of the inner furnace tube.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the present invention provides an integral radiant tube furnace.
An embodiment of the utility model provides an integral radiant tube furnace, including furnace body, radiation boiler tube and convection boiler tube, the furnace body includes radiation chamber and the convection chamber on upper portion in lower part, radiation chamber bottom is equipped with a plurality of combustors, radiation boiler tube fixed set up in the middle part of radiation chamber, radiation boiler tube is the spiral coil pipe who encircles the radiation chamber inner wall, convection boiler tube set up in the middle part of the furnace body, convection boiler tube includes a plurality of annular horizontal pipes, all horizontal pipes stagger from top to bottom and set up horizontally, arbitrary adjacent two horizontal pipes are connected through the elbow, convection boiler tube upper end extends to the upper portion of convection chamber, the lower extreme extends into radiation boiler tube inside and to the bottom of radiation chamber, and the convection lower extreme connects radiation boiler tube lower extreme, the convection upper end extends out the furnace body outer wall, and forming a rich oil inlet, wherein 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 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.
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, a chimney is arranged at the top of the furnace body, and an escalator is arranged on the outer wall of the chimney.
Further, a plurality of observation windows are arranged on the outer wall of the convection chamber.
Further, the convection chamber is provided with a wind box.
Furthermore, a plurality of fire extinguishing steam inlets are formed in the bottom of the radiation chamber and connected with fire extinguishing steam connecting pipes.
The embodiment of the utility model provides a beneficial effect that technical scheme brought is: the utility model discloses an integral radiant tube furnace, convection furnace tube lower extreme set up inside the radiation furnace tube, make full use of radiation chamber space, rich oil flows into the radiation furnace tube by convection furnace tube upper end, upwards flows out again, has prolonged the flow of rich oil greatly, has increased heat transfer area, has prolonged the time of being heated of rich oil flow through radiation chamber, improves the comprehensive efficiency of heating furnace effectively, and can reduce the probability of rich oil coking, has improved the productivity effect of device.
Drawings
Fig. 1 is a schematic view of an integral radiant tube furnace of the present invention.
In the figure: 1-radiation chamber, 2-convection chamber, 3-radiation furnace tube, 4-convection furnace tube, 5-tube plate, 6-burner, 7-rich oil inlet, 8-rich oil outlet, 9-wind box, 10-observation window, 11-fire-extinguishing steam inlet, 12-fire-extinguishing steam connecting tube, 13-chimney and 14-staircase.
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 an integral radiant tube furnace, which includes a furnace body, a radiant furnace tube 3 and a convection furnace tube 4.
The furnace body is the ladder barrel of narrow top down width, the furnace body includes radiation chamber 1 and the convection chamber 2 on upper portion of lower part, the top of convection chamber 2 still is equipped with chimney 13, the chimney 13 outer wall is equipped with staircase 14.
Convection furnace tube 4 set up in the middle part of furnace body, convection furnace tube 4 lower part stretches into the accommodation space at radiation furnace tube 3 middle part, upper portion extends to 2 upper portions of convection chamber, convection furnace tube 4 includes a plurality of annular horizontal pipes, and stagger and the level setting from top to bottom of all horizontal pipes, arbitrary adjacent two the horizontal pipe passes through the elbow and connects, makes adjacent two in this embodiment vertical distance between the horizontal pipe equals. The horizontal pipe is horizontally arranged, so that the flow velocity of fluid in the pipe is reduced, and the heat exchange time is prolonged. 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.
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 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. The convection chamber 2 is provided with an air box 9, and the air box 9 can blow air into the convection chamber 2. The outer wall of the convection chamber 2 is provided with a plurality of observation windows 10, and the condition in the convection chamber 2 can be observed through the observation windows 10.
The bottom of the radiation chamber 1 is provided with a plurality of burners 6, the burners 6 are heating nozzles, all the burners 6 penetrate and are fixed at the bottom of the radiation chamber 1, and the upper ends of all the burners 6 face the middle part of the convection furnace tube 4 and are uniformly distributed and arranged into a circle. The burners 6 can heat the radiant coils 3 and the convection coils 4 simultaneously. The bottom of the radiation chamber 1 is provided with a plurality of fire extinguishing steam inlets 11, the fire extinguishing steam inlets 11 are connected with fire extinguishing steam connecting pipes 12, and fire extinguishing steam can be introduced into the radiation chamber 1 through the fire extinguishing steam connecting pipes 12 to extinguish fire and reduce temperature.
The utility model discloses an integral radiant tube furnace, by rich oil import 7 input rich oil or coal tar wait for the heating fluid, and fluid top-down slowly flows through in proper order each layer horizontal pipe of convection furnace tube 4 flows extremely the bottom of radiation chamber 1 gets into in the radiation furnace tube 3, the rerum extremely rich oil export 8 flows out, through combustor 6 is right radiation furnace tube 3 and convection furnace tube 4 simultaneous heating have prolonged the flow of rich oil greatly, have increased heat transfer area, have prolonged the time of being heated that the rich oil flows through radiation chamber 1, and the inside air of furnace body is heated and has just got into the fluid of convection furnace tube 4 carries out the primary heating, improves the comprehensive efficiency of heating furnace effectively.
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 (7)
1. An integral radiant tube furnace, characterized in that: 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 tubes are fixedly arranged at the middle part of the radiation chamber, the radiation furnace tubes are spiral coil tubes surrounding the inner wall of the radiation chamber, the convection furnace tubes are arranged at the middle part of the furnace body and comprise a plurality of annular horizontal tubes, all the horizontal tubes are staggered up and down and are horizontally arranged, any two adjacent horizontal tubes are connected through an elbow, the upper ends of the convection furnace tubes extend to the upper part of the convection chamber, the lower ends of the convection furnace tubes extend into the interior of the radiation furnace tubes and extend to the bottom of the radiation chamber, the lower ends of the convection furnace tubes are connected with the lower ends of the radiation furnace tubes, the upper ends of the convection furnace tubes extend out of the outer wall of the furnace body to form an oil-rich inlet, and the upper ends of the, forming a rich oil outlet.
2. An integral radiant tube furnace as defined in 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.
3. An integral radiant tube furnace as defined in 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.
4. An integral radiant tube furnace as defined in claim 1 wherein: the top of the furnace body is provided with a chimney, and the outer wall of the chimney is provided with an escalator.
5. An integral radiant tube furnace as defined in claim 1 wherein: and a plurality of observation windows are arranged on the outer wall of the convection chamber.
6. An integral radiant tube furnace as defined in claim 1 wherein: the convection chamber is provided with an air box.
7. An integral radiant tube furnace as defined in claim 1 wherein: the bottom of the radiation chamber is provided with a plurality of fire extinguishing steam inlets, and the fire extinguishing steam inlets are connected with fire extinguishing steam connecting pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921145404.4U CN210602779U (en) | 2019-07-19 | 2019-07-19 | Integral radiant tube furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921145404.4U CN210602779U (en) | 2019-07-19 | 2019-07-19 | Integral radiant tube furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210602779U true CN210602779U (en) | 2020-05-22 |
Family
ID=70687007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921145404.4U Expired - Fee Related CN210602779U (en) | 2019-07-19 | 2019-07-19 | Integral radiant tube furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210602779U (en) |
-
2019
- 2019-07-19 CN CN201921145404.4U patent/CN210602779U/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 |