CN204874410U - Segmentation of delayed coking fractionating tower is washd heat transfer and is prevented burnt device of tower bear building -up - Google Patents
Segmentation of delayed coking fractionating tower is washd heat transfer and is prevented burnt device of tower bear building -up Download PDFInfo
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- CN204874410U CN204874410U CN201520529498.0U CN201520529498U CN204874410U CN 204874410 U CN204874410 U CN 204874410U CN 201520529498 U CN201520529498 U CN 201520529498U CN 204874410 U CN204874410 U CN 204874410U
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Abstract
The utility model relates to a segmentation of delayed coking fractionating tower is washd heat transfer and is prevented burnt device of tower bear building -up belongs to petroleum processing delayed coking technical field for fractionating tower and the serious problem of washing heat transfer section coking when solving the heavy matter residual oil of delayed coking processing. Should be through oil agitating unit at the bottom of the tower at the bottom of the fractionating tower, can the effectual coking that prevents at the bottom of the fractionating tower, through setting up different combinations of washing heat transfer pattern and internals structural style in different positions, the fine coke having realized carrying in the oil gas wash with raw oil and oil gas between high -efficient heat transfer, but guarantee product quality, reduced low reaches device coking probably, guaranteed the long period run who installs.
Description
Technical field
The utility model belongs to refining of petroleum field, is specifically related to a kind of delayed coker fractionator segmentation washing heat exchange and anti-tower bottom coke device.
Background technology
Delayed coking unit separation column is the separating unit of delayed coking unit, and major function is that the reaction oil gas from coke drum is separated into the products such as wax oil, diesel oil, gasoline, rich gas, and the said products is as the further deep processing of raw material of refinery's downstream unit.Conventional delayed coker fractionator adopts the upper and lower charging of stock oil as washing oil, and washing coke powder and heat exchange, feed control column bottom temperature under stock oil, arranges oil flow and the residence time at the bottom of oil circulating pump control tower at the bottom of tower simultaneously.Simple is poor by stock oil washing effect, because the resin and asphalt comparision contents in stock oil is many, and can not effectively by the easily coking component removing such as the coke powder in reaction oil gas, resin and asphalt; At the bottom of simple tower, oil circulating pump is under column bottom temperature controls jiggly situation, and can not ensure that at the bottom of the tower of coke powder, oil keeps good mobility, it is serious that coke powder causes Fractionator Bottom coking.
Utility model content
The utility model is the problem that when solving delayed coking processing heavy oil residue, separation column is serious with the coking of washing heat exchanging segment, provides a kind of delayed coker fractionator segmentation washing heat exchange and anti-tower bottom coke device.
The above-mentioned technical problem of the utility model is mainly solved by following technical proposals.
A kind of delayed coker fractionator segmentation washing heat exchange and anti-tower bottom coke device mainly comprise: separation column and stripping tower, be provided with successively from top to bottom in separation column and stir slurry oil endless tube, stir steam loop, first washing heat exchanging segment, circulation wax oil oil header, the second washing heat exchanging segment, distillation stage, it is characterized in that: fractionation column base is provided with and stirs slurry oil endless tube, stir slurry oil endless tube top and be provided with stirring steam loop; The circulation wax oil oil header of separation column is extracted line out by wax oil and is connected with stripping tower; Stripping tower bottom portion is connected with stirring steam loop respectively by stirring steamline, sprays sparger be connected by steamline with the stock oil of separation column; Stripping tower top is returned tower line by gas phase and is connected with distillation stage.
Be provided with at the bottom of tower between described stirring steam loop and stirring slurry oil endless tube and extract strainer out, stir steam loop and stir slurry oil endless tube and be all provided with distribution hole and shower nozzle, mixing effect is played by distribution hole and shower nozzle, stir slurry oil and control column bottom temperature, stir steam and play certain stripping effect simultaneously.
The first described washing heat exchanging segment sprays distribution by stock oil and herring-bone plate washer forms, stock oil spray sparger is positioned at herring-bone plate washer top, herring-bone plate washer arranges 1-4 layer, stock oil spray sparger is connected with steamline, according to the appropriate injecting steam of feedstock property, improve atomizing effect, ensure the life-time service of nozzle.
The second described washing heat exchanging segment sprays sparger by wax oil and grid forms, and wax oil spray sparger is positioned at grid top, and most of oil gas directly washs through shower nozzle and oil gas, decreases the tendency of column plate and column internals coking.
The utility model, by arranging whipping appts at Fractionator Bottom, effectively can prevent the coking of Fractionator Bottom; At different positions, different flushing heat exchanging patterns and the combination of inner parts structure form are set, achieve the high efficient heat exchanging between the flushing of the coke powder carried in oil gas and stock oil and oil gas, ensure quality product, reduce downstream unit coking possibility, the long-term operation of assurance device.
Accompanying drawing explanation
Fig. 1 is segmentation washing heat exchanging segment apparatus structure schematic diagram at the bottom of the utility model delayed coker fractionator;
In figure, 1 for stirring slurry oil endless tube, and 2 for stirring steam loop, and 3 is the first washing heat exchanging segment, 4 for circulation wax oil oil header, 5 second washing heat exchanging segments, and 6 is distillation stage, and 7 return tower line for gas phase, 8 is wax oil spray sparger, and 9 is grid, and 10 is wax oil extraction line, 11 is steamline, and 12 is stock oil spray sparger, and 13 is chev(e)ron baffle, 14 for stirring steamline, and 15 for extracting strainer out at the bottom of tower, and 16 is separation column, 17 is strainer, and 18 is stripping tower, and 19 is interchanger.
Embodiment
A kind of delayed coker fractionator segmentation washing heat exchange and anti-tower bottom coke device,
As shown in Figure 1, a kind of delayed coker fractionator segmentation washing heat exchange and anti-tower bottom coke device mainly comprise: separation column and stripping tower, it is characterized in that: separation column 16 is provided with successively from top to bottom and stirs slurry oil endless tube 1, stir steam loop 2, first washing heat exchanging segment 3, circulation wax oil oil header 4, second washs heat exchanging segment 5, distillation stage 6; Be provided with at the bottom of tower between stirring steam loop 2 and stirring slurry oil endless tube 1 and extract strainer 15 out, stir steam loop 2 and be all provided with distribution hole and shower nozzle with stirring slurry oil endless tube 1; First washing heat exchanging segment 3 sprays sparger 12 by stock oil and herring-bone plate washer 13 forms, and stock oil spray sparger 12 is positioned at herring-bone plate washer 13 top, and herring-bone plate washer 13 arranges 1-4 layer; Second washing heat exchanging segment 5 sprays sparger 8 by wax oil and grid 9 forms, and wax oil spray sparger 8 is positioned at grid 9 top; The oil header 4 of separation column 16 is extracted line 10 out by wax oil and is connected with in the middle part of stripping tower 18 through filter 17, be connected with stirring steam loop 2 by stirring steamline 14 through interchanger 19 respectively bottom stripping tower 18, spray sparger 12 by steamline 11 with the stock oil of separation column 16 to be connected, stripping tower 18 top is returned tower line 7 by gas phase and is connected with distillation stage 6.
Claims (4)
1. a delayed coker fractionator segmentation washing heat exchange and anti-tower bottom coke device, comprise separation column and stripping tower, be provided with successively from top to bottom in separation column (16) and stir slurry oil endless tube (1), stir steam loop (2), first washing heat exchanging segment (3), circulation wax oil oil header (4), second washing heat exchanging segment (5), distillation stage (6), it is characterized in that: separation column (16) bottom is provided with stirs slurry oil endless tube (1), stirs slurry oil endless tube (1) top and is provided with stirring steam loop (2); The circulation wax oil oil header (4) of separation column (16) is extracted line (10) out by wax oil and is connected with stripping tower (18) middle part; Stripping tower (18) bottom is connected with stirring steam loop (2) respectively by stirring steamline (14), sprays sparger (12) be connected by steamline (11) and the stock oil of separation column (16); Stripping tower (18) top is returned tower line (7) by gas phase and is connected with distillation stage (6).
2. a kind of delayed coker fractionator segmentation washing heat exchange according to claim 1 and anti-tower bottom coke device, it is characterized in that: stir between steam loop (2) and stirring slurry oil endless tube (1) and be provided with extraction strainer (15) at the bottom of tower, stirring steam loop (2) and stirring slurry oil endless tube (1) are all provided with distribution hole and shower nozzle.
3. heat exchange and anti-tower bottom coke device are washed in a kind of delayed coker fractionator segmentation according to claim 1, it is characterized in that: the first washing heat exchanging segment (3) sprays sparger (12) by stock oil and herring-bone plate washer (13) forms, stock oil spray sparger (12) is positioned at herring-bone plate washer (13) top, and herring-bone plate washer (13) arranges 1-4 layer.
4. heat exchange and anti-tower bottom coke device are washed in a kind of delayed coker fractionator segmentation according to claim 1, it is characterized in that: the second washing heat exchanging segment (5) sprays sparger (8) by wax oil and grid (9) forms, and wax oil spray sparger (8) is positioned at grid (9) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520529498.0U CN204874410U (en) | 2015-07-21 | 2015-07-21 | Segmentation of delayed coking fractionating tower is washd heat transfer and is prevented burnt device of tower bear building -up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520529498.0U CN204874410U (en) | 2015-07-21 | 2015-07-21 | Segmentation of delayed coking fractionating tower is washd heat transfer and is prevented burnt device of tower bear building -up |
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| CN204874410U true CN204874410U (en) | 2015-12-16 |
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| CN201520529498.0U Active CN204874410U (en) | 2015-07-21 | 2015-07-21 | Segmentation of delayed coking fractionating tower is washd heat transfer and is prevented burnt device of tower bear building -up |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642071A (en) * | 2016-12-29 | 2017-05-10 | 南京天河汽车零部件股份有限公司 | Device and method for converting high-temperature steam into normal-temperature gas |
| CN107227168A (en) * | 2017-07-18 | 2017-10-03 | 新乡市华音再生能源设备有限公司 | The application of steam-stirring formula rectifying furnace and steam in crude oil rectifying furnace coking is prevented |
| CN112708442A (en) * | 2019-10-24 | 2021-04-27 | 中国石化工程建设有限公司 | Catalytic slurry oil reduced pressure distillation tower and anti-coking method thereof |
| CN115637164A (en) * | 2021-07-19 | 2023-01-24 | 中国石化工程建设有限公司 | Method and system for pumping light diesel oil with specific control dry point by catalytic or coking fractionating tower |
| CN115637164B (en) * | 2021-07-19 | 2024-05-14 | 中国石化工程建设有限公司 | Method and system for extracting light diesel oil with specific control dry point from catalytic or coking fractionating tower |
-
2015
- 2015-07-21 CN CN201520529498.0U patent/CN204874410U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642071A (en) * | 2016-12-29 | 2017-05-10 | 南京天河汽车零部件股份有限公司 | Device and method for converting high-temperature steam into normal-temperature gas |
| CN107227168A (en) * | 2017-07-18 | 2017-10-03 | 新乡市华音再生能源设备有限公司 | The application of steam-stirring formula rectifying furnace and steam in crude oil rectifying furnace coking is prevented |
| CN112708442A (en) * | 2019-10-24 | 2021-04-27 | 中国石化工程建设有限公司 | Catalytic slurry oil reduced pressure distillation tower and anti-coking method thereof |
| CN112708442B (en) * | 2019-10-24 | 2022-11-01 | 中国石化工程建设有限公司 | Catalytic slurry oil reduced pressure distillation tower and anti-coking method thereof |
| CN115637164A (en) * | 2021-07-19 | 2023-01-24 | 中国石化工程建设有限公司 | Method and system for pumping light diesel oil with specific control dry point by catalytic or coking fractionating tower |
| CN115637164B (en) * | 2021-07-19 | 2024-05-14 | 中国石化工程建设有限公司 | Method and system for extracting light diesel oil with specific control dry point from catalytic or coking fractionating tower |
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