CN204848760U - Reduce burnt stirring steam loop of coking fractionating tower bear building -up - Google Patents
Reduce burnt stirring steam loop of coking fractionating tower bear building -up Download PDFInfo
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- CN204848760U CN204848760U CN201520529497.6U CN201520529497U CN204848760U CN 204848760 U CN204848760 U CN 204848760U CN 201520529497 U CN201520529497 U CN 201520529497U CN 204848760 U CN204848760 U CN 204848760U
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Abstract
The utility model relates to a reduce burnt stirring steam loop of coking fractionating tower bear building -up belongs to petroleum processing technical field. Extract oil cap upper portion at the bottom of the tower at the bottom of the fractionating tower of delayed coking device is arranged in to this stirring steam loop, and at the bottom of the stirring tower under the liquid level 20 - 30 centimetres, the highest evenly distributed 6 of a steam loop branch pipe, adjacent branch pipe are relative state, and the place plane becomes 30 with stirring steam loop axis place plane, connects the shower nozzle of stirring steam on the branch pipe, passes through steam during the device operation and strike and form the vortex and mix oil at the bottom of the tower, makes at the bottom of the tower oil all the time at the motion state, the emergence of reduction coking.
Description
Technical field
The utility model belongs to refining of petroleum field, is specifically related to a kind of stirring steam loop reducing coking fractional distillation column bottom coke.
Background technology
Delayed coking unit processes vacuum residuum for main raw material, separation column is the very crucial production unit of delayed coking unit, the gasoline of coker, diesel oil, wax oil mainly generate in separation column, and Fractionator Bottom coking can cause gas-liquid two-phase in separation column uneven, destroy material balance, separation column evaporator section temperature is too high, causes separation column to rush tower, causes quality product defective.The easy coking of separation column is restriction coker safety always, steadily, at full capacity, the principal element of long-term operation, and the factor affecting Fractionator Bottom coking is exactly the poor fluidity of Fractionator Bottom oil, when top of coke tower oil gas carry micro-coke powder enter Fractionator Bottom time, due to the poor fluidity of oil at the bottom of tower, coke powder can be caused to be deposited in Fractionator Bottom, and can not extract out with radiation oil and enter strainer and filter out, As time goes on, coke powder can be cumulative, because containing the static overstand of oil at the bottom of the tower of coke powder, coke powder is caused to stick to continuous coking on tower wall, in order to aggravate the kinestate of oil at the bottom of tower, the utilization that Fractionator Bottom stirs steam loop can well alleviate this problem, and the design of rational steam-stirring endless tube farthest can stir oil at the bottom of tower, alleviate Coking, the stable operation of assurance device.
The stirring steam loop that present delayed coking unit is applied, majority is direct perforate on endless tube, or the direction of perforate upper spray nozzle is not designed targetedly, make the stirring scope of stirring steam loop to oil at the bottom of tower little, make to stir steaming effect undesirable, do not reach good anti-coking effect.
Utility model content
The utility model is solve the deficiencies in the prior art to provide a kind of stirring steam loop reducing coking fractional distillation column bottom coke, is a kind of coking device of the Fractionator Bottom being applied to delayed coking unit.
The technical solution adopted in the utility model: a kind of stirring steam loop reducing coking fractional distillation column bottom coke, comprise and stir steam loop and separation column, it is characterized in that: stirring steam loop is positioned at separation column and extracts oily cap top out, stir steam loop to be connected with stirring steam-in underwater flange, stir steam loop external diameter with separation column diameter than 0.4-0.8, stirring steam loop internal diameter than 0.2-0.7, steam loop is uniformly distributed 6 arms with separation column diameter.
Described stirring steam loop is arranged at fractionation column base and extracts 10-15 centimetre on oily cap out, 15-40 centimetre under separation column 4 end slurry oil liquid level.
The external diameter of described stirring steam loop is greater than internal diameter.
Described arm and place plane are 15-45 ° with the main ring pipe place plane of stirring steam loop, adjacent arm is relatively in 30-60 °, arm connects and stirs steam jet, the design of arm makes the steam sprayed form the steam-stirring oar being equivalent to stirring rake effect, the motion containing oil at the bottom of coke powder tower of maximum increase Fractionator Bottom, reduce the residence time of coke powder, reach the object suppressing the coking of Fractionator Bottom coke powder.
The arm that the minimizing coking fractional distillation column bottom coke that the utility model relates to stirs steam loop is provided with multiple shower nozzle, Fractionator Bottom can be sprayed steam into, farthest can stir oil at the bottom of separation column tower, coke powder is made to be in the state of constantly motion, can extract out with radiation outlet port or turning oil smoothly, prevent coke powder to adhere to coking at the bottom of separation column tower.
Accompanying drawing explanation
Fig. 1 is the application schematic diagram of stirring steam loop on separation column of minimizing coking fractional distillation column bottom coke described in the utility model;
Fig. 2 is the structural representation of the stirring steam loop of minimizing coking fractional distillation column bottom coke of the present utility model;
Fig. 3 is the vertical view of the stirring steam loop of minimizing coking fractional distillation column bottom coke of the present utility model;
In figure, 1 extracts oily cap out for separation column, and 2 for stirring steam loop, and 3 for stirring steam-in, and 4 be separation column, and 5 is oily outlet port at the bottom of tower, and 6 is opening for feed under stock oil, and 7 is arm, and 8 is main ring pipe.
Embodiment
A kind of stirring steam loop reducing coking fractional distillation column bottom coke.
As shown in Figure 1, a kind of stirring steam loop reducing coking fractional distillation column bottom coke, comprise and stir steam loop and separation column, steam-stirring endless tube 2 is connected with stirring steam-in pipeline 3, 2 are positioned at bottom separation column 4 and extract 10-15 centimetre on oily cap 1 out, 15-40 centimetre under separation column 4 end slurry oil liquid level, steam-stirring endless tube 2 external diameter and separation column 4 diameter are than 0.4-0.8, stir steam loop 2 internal diameter with separation column 4 diameter than 0.2-0.7, steam loop 2 is uniformly distributed 6 arms 7, arm 7 is 15-45 ° with the main ring pipe 8 place plane of stirring steam loop 2, adjacent arm is relatively in 30-60 °.
Claims (3)
1. one kind is reduced the stirring steam loop of coking fractional distillation column bottom coke, comprise and stir steam loop and separation column, it is characterized in that: stirring steam loop (2) is arranged at separation column and extracts the upper 10-15 centimetre of oily cap (1) out, 15-40 centimetre under Fractionator Bottom slurry oil liquid level, stir steam loop (2) and pass through Flange joint with stirring steam-in pipeline (3), stirring steam loop (2) external diameter and separation column (4) diameter are than 0.4-0.8, stirring steam loop (2) internal diameter and separation column (4) diameter are than 0.2-0.7, stir on steam loop (2) and be uniformly distributed 6 arms (7).
2. a kind of stirring steam loop reducing coking fractional distillation column bottom coke according to claim 1, is characterized in that: arm (7) is 15-45 ° with main ring pipe (8) the place plane of stirring steam loop (2), and adjacent arm is relatively in 30-60 °.
3. a kind of stirring steam loop reducing coking fractional distillation column bottom coke according to claim 1, is characterized in that: arm (7) upper connection stirs steam jet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520529497.6U CN204848760U (en) | 2015-07-21 | 2015-07-21 | Reduce burnt stirring steam loop of coking fractionating tower bear building -up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520529497.6U CN204848760U (en) | 2015-07-21 | 2015-07-21 | Reduce burnt stirring steam loop of coking fractionating tower bear building -up |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204848760U true CN204848760U (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520529497.6U Active CN204848760U (en) | 2015-07-21 | 2015-07-21 | Reduce burnt stirring steam loop of coking fractionating tower bear building -up |
Country Status (1)
| Country | Link |
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| CN (1) | CN204848760U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN114733221A (en) * | 2022-04-24 | 2022-07-12 | 南通利奥化工科技有限公司 | Rectifying tower for quickly heating and vaporizing materials |
-
2015
- 2015-07-21 CN CN201520529497.6U patent/CN204848760U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN114733221A (en) * | 2022-04-24 | 2022-07-12 | 南通利奥化工科技有限公司 | Rectifying tower for quickly heating and vaporizing materials |
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