CN205953923U - Take two -sided radiant coil structure of coke cleaning elbow - Google Patents
Take two -sided radiant coil structure of coke cleaning elbow Download PDFInfo
- Publication number
- CN205953923U CN205953923U CN201620902615.8U CN201620902615U CN205953923U CN 205953923 U CN205953923 U CN 205953923U CN 201620902615 U CN201620902615 U CN 201620902615U CN 205953923 U CN205953923 U CN 205953923U
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- China
- Prior art keywords
- boiler tube
- tube
- sides
- furnace
- sided
- 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
Links
- 239000000571 coke Substances 0.000 title claims abstract description 17
- 238000004140 cleaning Methods 0.000 title claims abstract description 14
- 230000005855 radiation Effects 0.000 claims abstract description 34
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 238000005266 casting Methods 0.000 claims abstract description 11
- 238000005235 decoking Methods 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims 1
- 238000004939 coking Methods 0.000 abstract description 18
- 210000004262 dental pulp cavity Anatomy 0.000 abstract 1
- 230000003111 delayed effect Effects 0.000 description 4
- 239000003921 oil Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000011331 needle coke Substances 0.000 description 2
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000008570 general process Effects 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The utility model discloses a take two -sided radiant coil structure of coke cleaning elbow, include radiation chamber, combustor, boiler tube, sharp turn return bend and take the casting return bend of end cap, wherein, the boiler tube is established in the radiation chamber, the boiler tube both sides set up two rows of combustors, the both sides of boiler tube are two -sided radiant heating surface, the boiler tube is formed by many tie -in, and many root canals section sets up side by side, and one side of adjacent pipeline section is connected through the sharp turn return bend, and the opposite side of adjacent pipeline section is connected through the casting return bend of taking the end cap. Boiler tube both sides through setting up in the radiation chamber set up two rows of combustors for the two sides of boiler tube both sides is two -sided radiant heating surface, and the exit temperature of control coking stove radiation chamber boiler tube that can be better makes this temperature keep 495~505 DEG C, connects each pipeline section of boiler tube through set up the casting return bend of taking the end cap in the boiler tube, can be convenient carry out mechanical coke cleaning.
Description
Technical Field
The utility model relates to a petrochemical equipment field especially relates to a two-sided radiation coil pipe structure of taking coke cleaning elbow that delayed coking heating furnace was used.
Background
The delayed coking is to heat heavy oil in a tubular heating furnace, and the oil reaches the coking reaction temperature in the heating furnace in short time by adopting high flow rate and high heat intensity, and simultaneously leaves the heating furnace rapidly and enters a coke tower, so that the coking reaction is not carried out in the heating furnace but is delayed to be carried out in the coke tower.
In order to solve the contradiction, in the general process, after raw oil enters a heating furnace tube, steam or softened water is injected from a proper position at multiple points so as to increase the flow rate of the raw oil in the furnace tube and reduce the coking tendency. The structure of the coking furnace is a horizontal tube box type furnace with a furnace tube arranged horizontally. The heating of the furnace tube has two types of single-side radiation and double-side radiation, wherein only one side of the furnace tube is heated by flame to be the single-side radiation, and the two sides of the furnace tube are heated by flame to be the double-side radiation. The end of the radiant coil is provided with an elbow which can be mechanically decoked, and once coking is carried out, mechanical decoking can be adopted.
At present, a heating furnace tube of a delayed coking heating furnace adopts a double-sided radiation coil without a decoking elbow, specifically, two groups of burners are arranged at two sides of the inner bottom of a radiation chamber of the coking furnace, a group of furnace tubes are arranged between the two groups of burners, and after the burners are ignited, the furnace tubes are in double-sided radiation in a hearth. The upper furnace tube and the lower furnace tube are connected by the sharp-bend elbow, but the coking furnace is easy to coke because the furnace tubes are not provided with the coke cleaning elbows, and once the furnace tubes are coked, the structure cannot carry out mechanical coke cleaning because the furnace tubes are not provided with the coke cleaning elbows.
SUMMERY OF THE UTILITY MODEL
Based on the problem that above-mentioned prior art exists, the utility model provides a two-sided radiation coil pipe structure of band elimination burnt elbow, the control coking furnace that can be better radiates the exit temperature of room boiler tube, makes this temperature keep 495 ~ 505 ℃, moreover in the boiler tube in case can be convenient carry out mechanical decoking when the coking.
In order to solve the technical problem, the utility model provides a two-sided radiation coil pipe structure of burnt elbow is cleared in area, include:
the device comprises a radiation chamber, a burner, a furnace tube, a sharp bend and a casting return bend with a plug; wherein,
the furnace tube is arranged in the radiation chamber, two rows of burners are arranged on two sides of the furnace tube, and two sides of the furnace tube are double-sided radiation heating surfaces;
the furnace tube is formed by connecting a plurality of tube sections, the plurality of tube sections are arranged side by side, one side of each adjacent tube section is connected through a sharp bend, and the other side of each adjacent tube section is connected through a casting return bend with a plug.
The utility model has the advantages that: two rows of burners are arranged on two sides of the furnace tube arranged in the radiation chamber, so that two sides of the furnace tube are double-sided radiation heating surfaces, the outlet temperature of the furnace tube in the radiation chamber of the coking furnace can be better controlled, the temperature is kept at 495-505 ℃, and mechanical coke cleaning can be conveniently carried out by arranging a casting return bend with a plug in the furnace tube to connect each tube section of the furnace tube.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a double-sided radiant coil with a decoking elbow according to an embodiment of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is a sectional view taken along line B-B of FIG. 2;
fig. 4 is a schematic structural view of a cast return bend with a plug of a double-sided radiant coil pipe with a coke cleaning bend according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention are described below clearly and completely, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiment of the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The double-sided radiant coil of the present invention will be further described with reference to the following embodiments.
As shown in fig. 1 to 3, an embodiment of the present invention provides a double-sided radiant coil structure with a coke cleaning elbow, which includes a radiant chamber 1, a burner 2, a furnace tube 3, a sharp bend 4 and a casting return bend 5 with a plug; wherein,
the furnace tube is arranged in the radiation chamber, preferably, the furnace tube is arranged in the middle of the radiation chamber, two rows of burners are arranged on two sides of the furnace tube, and two sides of the furnace tube are double-sided radiation heating surfaces;
the furnace tube is formed by connecting a plurality of tube sections, the tube sections are arranged side by side, one sides of the adjacent tube sections are connected through a sharp bend, the other sides of the adjacent tube sections are connected through a casting return bend with a plug, and the casting return bend with the plug is structurally shown in figure 4.
The utility model discloses a two-sided radiation coil pipe structure arranges the boiler tube in radiation chamber (furnace) positive centre, and two rows of combustors are arranged to the boiler tube both sides, and the boiler tube is two-sided radiation, and medium heating intensity strengthens in the boiler tube, and the boiler tube is arranged relatively fewly, and by heating medium dwell time in the stove few, it is possible to alleviate the fracture, and faster intensifies to required temperature, guarantees to satisfy the technological requirement. One side of the furnace tube, which is connected with the upper and lower adjacent tube sections, adopts a sharp bend pipe, the other side adopts a cast return bend with a plug, the upper side of the cast return bend is provided with a plug, the plug can be unscrewed, the furnace tube can be conveniently and mechanically cleaned, and the plug can be detached to observe the coking condition in the furnace tube. The double-sided radiation coil pipe structure with the structure can better control the outlet temperature of the furnace pipe of the radiation chamber of the coking furnace, so that the temperature is kept at 495-505 ℃. And once the furnace tube is coked, the mechanical decoking can be conveniently carried out.
Will the utility model discloses a take two-sided radiation coil pipe structure of coke cleaning elbow is applied to in the 6 ten thousand tons of needle coke projects of xi ke china ink (Jiangsu) needle coke science and technology Limited company, is used in the delay coking furnace F-1101 of delay coking unit and tests, and is respond well, very big promotion the convenience of temperature control and coke cleaning.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (2)
1. A double-sided radiation coil pipe structure with a coke cleaning elbow is characterized by comprising a radiation chamber, a burner, a furnace pipe, a sharp bend elbow and a casting return elbow with a plug; wherein,
the furnace tube is arranged in the radiation chamber, two rows of burners are arranged on two sides of the furnace tube, and two sides of the furnace tube are double-sided radiation heating surfaces;
the furnace tube is formed by connecting a plurality of tube sections, the plurality of tube sections are arranged side by side, one side of each adjacent tube section is connected through a sharp bend, and the other side of each adjacent tube section is connected through a casting return bend with a plug.
2. The double-sided radiant coil construction with a decoking elbow as in claim 1 wherein the furnace tube is located in the middle of the radiant chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620902615.8U CN205953923U (en) | 2016-08-18 | 2016-08-18 | Take two -sided radiant coil structure of coke cleaning elbow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620902615.8U CN205953923U (en) | 2016-08-18 | 2016-08-18 | Take two -sided radiant coil structure of coke cleaning elbow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205953923U true CN205953923U (en) | 2017-02-15 |
Family
ID=57976499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620902615.8U Expired - Fee Related CN205953923U (en) | 2016-08-18 | 2016-08-18 | Take two -sided radiant coil structure of coke cleaning elbow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205953923U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114705044A (en) * | 2022-03-24 | 2022-07-05 | 中国神华煤制油化工有限公司 | Heating furnace |
-
2016
- 2016-08-18 CN CN201620902615.8U patent/CN205953923U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114705044A (en) * | 2022-03-24 | 2022-07-05 | 中国神华煤制油化工有限公司 | 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170215 Termination date: 20180818 |