CN104004539A - Apparatus for preventing coke obstruction of feeding pipeline of delayed coking device, and method thereof - Google Patents
Apparatus for preventing coke obstruction of feeding pipeline of delayed coking device, and method thereof Download PDFInfo
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- CN104004539A CN104004539A CN201310059657.0A CN201310059657A CN104004539A CN 104004539 A CN104004539 A CN 104004539A CN 201310059657 A CN201310059657 A CN 201310059657A CN 104004539 A CN104004539 A CN 104004539A
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- coke
- feeding line
- charging
- valve
- burnt
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- 239000000571 coke Substances 0.000 title claims abstract description 118
- 238000004939 coking Methods 0.000 title claims abstract description 49
- 230000003111 delayed effect Effects 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 230000002146 bilateral effect Effects 0.000 claims description 12
- 239000002010 green coke Substances 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract 1
- 238000005235 decoking Methods 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000002411 adverse Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000001698 pyrogenic effect Effects 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 206010053615 Thermal burn Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Landscapes
- Coke Industry (AREA)
Abstract
The invention discloses an apparatus for preventing the coke obstruction of a feeding pipeline of a delayed coking device, and a method thereof, and belongs to the technical field of the petrochemical industry. The coke obstruction prevention apparatus is arranged between a coke tower and the feeding pipeline, the coke tower comprises a tower body, a coke tower bottom flange and a feeding short circuit, the feeding short circuit is connected below the coke tower bottom flange, the feeding pipe is connected with the feeding short circuit, and the connection of the feeding pipeline and the feeding short circuit is provided with a coke baffle grating, and a coke baffle valve is arranged in the feeding pipeline. The arrangement of the coke baffle grating effectively prevents the countercurrent entrance and blocking of large blocks of coke to the pipeline, and the coke baffle valve can prevent the entrance of coke, effectively avoids the obstruction of the pipeline and the obstruction of a water discharge channel, and guarantees the production continuity. The apparatus and the method improve the work condition of the feeding pipeline of the delayed coking device, eliminate the hidden safety trouble, and improve the safety and the reliability of the delayed coking device.
Description
Technical field
Patent of the present invention relates to petrochemical technology field, the device and method that particularly the anti-coke of a kind of delayed coking unit feeding line stops up.
Background technology
In modern petroleum refining industry, delayed coking unit is one of important device of refinery.So-called postpone to refer to that heating is warming up to rapidly pyrogenic reaction temperature through process furnace by coking oil (stock oil and turning oil), green coke not in reaction boiler tube, carries out pyrogenic reaction again and enter coke drum, therefore there is delayed action, is called Delayed Coking Technology.
Technological process is as follows: raw material residual oil enters raw material surge tank from atmospheric and vacuum distillation unit (or tank field), by raw oil pump, extracted out, convection zone through the laggard process furnace of heat exchange is heated to 330 ℃ of left and right, on minute, lower two-way enters separation column, pyroreaction oil gas (410-430 ℃) contact heat-exchanging that top charging and coke drum come, at the bottom of turning oil in oil gas is condensed and mixes and fall into tower with stock oil, then through radiation fresh feed pump, deliver to the radiation section of process furnace, under the effect of water filling, pass through fast boiler tube, oil product is heated to 490-505 ℃, by four-way valve, switch and from the feeding line of coke drum bottom, enter coke drum and carry out pyrogenic reaction.Reaction product coke is gathered in tower, and other products are all vapour phase and through volatilization pipeline, enter people's separation column from top effusion, after stock oil heat exchange, through fractionation, obtain gas, gasoline, diesel oil and wax oil.Coke in coke drum gathers after certain height (normally controlling certain coking period), stops charging, is switched in another preheated coke drum and continues to produce.Stop tower after charging by steaming out and cold Jiao, coke is cooled in safety temperature, coke enters Jiao Chi through hydraulic decoking, with row sling cart, dispatches from the factory.
But, in cold Jiao and hydraulic decoking stage, coke cutting and powder easily enter in the feeding line of coke drum bottom, the passage that discharges water that stops up decoking water cause discharge water not smooth, affect carrying out continuously of production process, need artificial unloading's coke drum bottom flange, by flange slot, slowly discharge water, at least need the end that just can discharge water for 8 hours.The temperature of decoking water is higher, if hot water or steam are scalded from the tower bottom flange personnel that ejection can cause dismantling bottom rapidly, coke collapse occurs sometimes, and not only contaminate environment even can be scalded the other staff on platform, and the serious device that also can cause is stopped work.
Summary of the invention
In order to solve prior art delayed coking unit feeding line, easily stop up, and cause and can not produce continuously, and decoking process easily scalds operator's problem, the embodiment of the present invention provides a kind of delayed coking unit feeding line device and method that anti-coke stops up.Described technical scheme is as follows:
The device that the anti-coke of a kind of delayed coking unit feeding line stops up, the device that described anti-coke stops up is arranged between coke drum and feeding line, described coke drum comprises tower body, coke tower bottom flange and charging short circuit, described charging short circuit is connected to described coke tower bottom flange below, described feeding line is connected with described charging short circuit, described feeding line and described charging short circuit connecting place are provided with the burnt grid of gear, are provided with the burnt valve of gear in described feeding line.
Preferably, described feeding line is the vertical charging of bottom centre, the one-sided charging of level, one-sided charging obliquely, horizontal bilateral charging or bilateral charging obliquely with described coke drum formation feeding structure.
Preferably, the burnt valve of described gear is gate valve, ball valve, butterfly valve, stopcock or stopping valve.
The present invention also provides a kind of method that is applied to the device of the anti-coke obstruction of delayed coking unit feeding line, described method comprises the device that the anti-coke of described delayed coking unit feeding line stops up, wherein, described in charging green coke stage and the stage that discharges water, keep off burnt valve open, keep described feeding line unobstructed, described in during cold Jiao, keep off burnt valve closes, prevent that coke from entering.
The present invention also provides the another kind of delayed coking unit feeding line device that anti-coke stops up, the device that described anti-coke stops up is arranged between coke drum and feeding line, described coke drum comprises tower body and coke tower bottom flange, described feeding line is connected with described tower body bottom, described feeding line and described tower body connecting place are provided with the burnt grid of gear, are provided with the burnt valve of gear in described feeding line.
Preferably, described feeding line and described coke drum formation feeding structure are the one-sided charging of level, one-sided charging obliquely, horizontal bilateral charging or bilateral charging obliquely.
Preferably, the burnt valve of described gear is gate valve, ball valve, butterfly valve, stopcock or stopping valve.
The present invention also provides the another kind of method that is applied to the device of the anti-coke obstruction of delayed coking unit feeding line, described method comprises the device that the anti-coke of described delayed coking unit feeding line stops up, wherein, described in charging green coke stage and the stage that discharges water, keep off burnt valve open, keep described feeding line unobstructed, described in during cold Jiao, keep off burnt valve closes, prevent that coke from entering.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:
The embodiment of the present invention is by arranging the burnt grid of gear, can effectively prevent that large lump coke adverse current from entering pipeline, jam in-line, can prevent that by the burnt valve of described gear coke from entering, effectively avoid the obstruction of the obstruction of pipeline and the passage that discharges water, guaranteed the continuity of producing.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the setting drawing that the anti-coke of the delayed coking unit feeding line that provides of one embodiment of the invention stops up;
Fig. 2 is the setting drawing that the anti-coke of the delayed coking unit feeding line that provides of another embodiment of the present invention stops up;
Fig. 3 is the setting drawing that the anti-coke of the delayed coking unit feeding line that provides of another embodiment of the present invention stops up;
Fig. 4 is the setting drawing that the anti-coke of the delayed coking unit feeding line that provides of another embodiment of the present invention stops up;
Fig. 5 is the setting drawing that the anti-coke of the delayed coking unit feeding line that provides of another embodiment of the present invention stops up;
Fig. 6 is the setting drawing that the anti-coke of the delayed coking unit feeding line that provides of another embodiment of the present invention stops up;
Fig. 7 is the setting drawing that the anti-coke of the delayed coking unit feeding line that provides of another embodiment of the present invention stops up;
Fig. 8 is the setting drawing that the anti-coke of the delayed coking unit feeding line that provides of another embodiment of the present invention stops up;
Fig. 9 is the setting drawing that the anti-coke of the delayed coking unit feeding line that provides of another embodiment of the present invention stops up;
Figure 10 is the structure iron of the burnt grid of the gear that provides of one embodiment of the invention;
Figure 11 is the structure iron of the burnt grid of the gear that provides of another embodiment of the present invention;
Figure 12 is the structure iron of the burnt grid of the gear that provides of another embodiment of the present invention.
In figure, each symbol represents that implication is as follows:
1 tower body, 2 entrances, 3 coke tower bottom flanges, 4 charging short circuits, 5 feeding lines, the burnt grid of 6 gear, the burnt valve of 7 gear.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment mono-
As Figure 1-5, the embodiment of the present invention provides a kind of delayed coking unit feeding line device that anti-coke stops up, the present embodiment be take Fig. 1 and is illustrated as main, the device that described anti-coke stops up is arranged between coke drum and feeding line 5, described coke drum comprises tower body 1, coke tower bottom flange 3 and charging short circuit 4, described charging short circuit 4 is connected to described coke tower bottom flange 3 belows, described feeding line 5 is connected with described charging short circuit 4, described feeding line 5 is provided with the burnt grid of gear with described charging short circuit 4 connecting places, coking tower entrance 2 places of entering that are feeding line 5 are provided with the burnt grid of gear, in described feeding line 5, be provided with the burnt valve 7 of gear.
The embodiment of the present invention is by arranging the burnt grid 6 of gear, can effectively prevent that large lump coke adverse current from entering pipeline, jam in-line, can prevent that by the burnt valve 7 of described gear coke from entering, effectively avoid the obstruction of the obstruction of pipeline and the passage that discharges water, guaranteed the continuity of producing.Therefore, the present invention improves the working condition of the feeding line 5 of delayed coking unit, eliminates the safe reliability of hidden danger, raising delayed coking unit.
Particularly, in the present embodiment, on feeding line 5, distance enters the burnt valve 7 of the nearest correct position mounting block of tower mouth, in order to stop that coke enters.
Preferably, described feeding line 5 is the vertical charging of bottom centre (as shown in Figure 1), the one-sided charging of level (as shown in Figure 2), one-sided charging obliquely (as shown in Figure 3), horizontal bilateral charging (as shown in Figure 5) or bilateral charging obliquely (as shown in Figure 4) with described coke drum formation feeding structure.
Preferably, the burnt valve 7 of described gear is gate valve, ball valve, butterfly valve, stopcock or stopping valve.
More specifically, as shown in figure 10, the burnt grid of described gear is cruciform, to increase the burnt effect of gear.
Certainly one of ordinary skill in the art will appreciate that, the burnt grid of described gear can also be structure shown in Figure 11 as shown in figure 11, and the burnt grid of described gear can also be a meter font structure as shown in figure 12.
Embodiment bis-
Shown in Fig. 1-Fig. 5, the present invention also provides a kind of method that is applied to the device of the anti-coke obstruction of delayed coking unit feeding line, described method comprises the device that the anti-coke of delayed coking unit feeding line described in embodiment mono-stops up, wherein, in the charging green coke stage with discharge water and keep off burnt valve 7 described in the stage and open, keep described feeding line 5 unobstructed, described in during cold Jiao, keeping off burnt valve 7 closes, prevent that coke from entering, blocking pipeline and the passage that discharges water, in discharge, keeping off burnt valve 7 described in the coke cooling water stage opens, discharge water as early as possible, close keeping off burnt valve 7 described in the hydraulic decoking stage, prevent that coke from entering, blocking pipeline, the next production cycle of impact.
The embodiment of the present invention is by arranging the burnt grid 6 of gear, can effectively prevent that large lump coke adverse current from entering pipeline, jam in-line, can prevent that by the burnt valve 7 of described gear coke from entering, effectively avoid the obstruction of the obstruction of pipeline and the passage that discharges water, guaranteed the continuity of producing.Therefore, the present invention improves the working condition of the feeding line 5 of delayed coking unit, eliminates the safe reliability of hidden danger, raising delayed coking unit.
Embodiment tri-
As shown in Fig. 6-Fig. 9, the present invention also provides the another kind of delayed coking unit feeding line device that anti-coke stops up, the present embodiment be take Fig. 6 and is illustrated as main, the device that described anti-coke stops up is arranged between coke drum and feeding line 5, described coke drum comprises tower body 1 and coke tower bottom flange 3, described feeding line 5 is connected with described tower body 1 bottom, and described feeding line 5 is provided with the burnt grid of gear with described tower body 1 connecting place, is provided with the burnt valve 7 of gear in described feeding line 5.
The embodiment of the present invention is by arranging the burnt grid 6 of gear, can effectively prevent that large lump coke adverse current from entering pipeline, jam in-line, can prevent that by the burnt valve 7 of described gear coke from entering, effectively avoid the obstruction of the obstruction of pipeline and the passage that discharges water, guaranteed the continuity of producing.Therefore, the present invention improves the working condition of the feeding line 5 of delayed coking unit, eliminates the safe reliability of hidden danger, raising delayed coking unit.
Particularly, in the present embodiment, described coke drum is with charging short circuit 4, feeding line 5 enter coking tower entrance 2 directly under coke drum tower body oblique conical section near lower tower mouth flange.
Preferably, described feeding line 5 is the one-sided charging of level, one-sided charging obliquely, horizontal bilateral charging or bilateral charging obliquely with described coke drum formation feeding structure.
Preferably, the burnt valve 7 of described gear is gate valve, ball valve, butterfly valve, stopcock or stopping valve.
More specifically, as shown in figure 10, the burnt grid of described gear is cruciform, to increase the burnt effect of gear.
Certainly one of ordinary skill in the art will appreciate that, the burnt grid of described gear can also be structure shown in Figure 11 as shown in figure 11, and the burnt grid of described gear can also be a meter font structure as shown in figure 12.
Embodiment tetra-
Shown in Fig. 6-Fig. 9, the present invention also provides the another kind of method that is applied to the device of the anti-coke obstruction of delayed coking unit feeding line, described method comprises the device that the anti-coke of delayed coking unit feeding line described in embodiment tri-stops up, wherein, in the charging green coke stage with discharge water and keep off burnt valve 7 described in the stage and open, keep described feeding line 5 unobstructed, described in during cold Jiao, keeping off burnt valve 7 closes, prevent that coke from entering, blocking pipeline and the passage that discharges water, in discharge, keeping off burnt valve 7 described in the coke cooling water stage opens, discharge water as early as possible, close keeping off burnt valve 7 described in the hydraulic decoking stage, prevent that coke from entering, blocking pipeline, the next production cycle of impact.
The embodiment of the present invention is by arranging the burnt grid 6 of gear, can effectively prevent that large lump coke adverse current from entering pipeline, jam in-line, can prevent that by the burnt valve 7 of described gear coke from entering, effectively avoid the obstruction of the obstruction of pipeline and the passage that discharges water, guaranteed the continuity of producing.Therefore, the present invention improves the working condition of the feeding line 5 of delayed coking unit, eliminates the safe reliability of hidden danger, raising delayed coking unit.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. the device that the anti-coke of a delayed coking unit feeding line stops up, it is characterized in that, the device that described anti-coke stops up is arranged between coke drum and feeding line, described coke drum comprises tower body, coke tower bottom flange and charging short circuit, described charging short circuit is connected to described coke tower bottom flange below, described feeding line is connected with described charging short circuit, and described feeding line and described charging short circuit connecting place are provided with the burnt grid of gear, is provided with the burnt valve of gear in described feeding line.
2. the device that anti-coke stops up according to claim 1, it is characterized in that, it is the vertical charging of bottom centre, the one-sided charging of level, one-sided charging obliquely, horizontal bilateral charging or bilateral charging obliquely that described feeding line forms feeding structure with described coke drum.
3. the device that anti-coke stops up according to claim 1, is characterized in that, the burnt valve of described gear is gate valve, ball valve, butterfly valve, stopcock or stopping valve.
4. be applied to the method for the device of the anti-coke obstruction of delayed coking unit feeding line, it is characterized in that, described method comprises the device that the anti-coke of delayed coking unit feeding line stops up described in claim 1-3 any one, wherein, described in charging green coke stage and the stage that discharges water, keep off burnt valve open, keep described feeding line unobstructed, coldly keep off burnt valve closes described in when burnt, prevent that coke from entering.
5. the device that the anti-coke of a delayed coking unit feeding line stops up, it is characterized in that, the device that described anti-coke stops up is arranged between coke drum and feeding line, described coke drum comprises tower body and coke tower bottom flange, described feeding line is connected with described tower body bottom, described feeding line and described tower body connecting place are provided with the burnt grid of gear, are provided with the burnt valve of gear in described feeding line.
6. the device that anti-coke stops up according to claim 5, is characterized in that, it is the one-sided charging of level, one-sided charging obliquely, horizontal bilateral charging or bilateral charging obliquely that described feeding line and described coke drum form feeding structure.
7. the device that anti-coke stops up according to claim 5, is characterized in that, the burnt valve of described gear is gate valve, ball valve, butterfly valve, stopcock or stopping valve.
8. be applied to the method for the device of the anti-coke obstruction of delayed coking unit feeding line, it is characterized in that, described method comprises the device that the anti-coke of delayed coking unit feeding line stops up described in claim 5-7 any one, wherein, described in charging green coke stage and the stage that discharges water, keep off burnt valve open, keep described feeding line unobstructed, coldly keep off burnt valve closes described in when burnt, prevent that coke from entering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310059657.0A CN104004539B (en) | 2013-02-26 | 2013-02-26 | The device and method of the anti-coke blocking of a kind of delayed coking unit feeding line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310059657.0A CN104004539B (en) | 2013-02-26 | 2013-02-26 | The device and method of the anti-coke blocking of a kind of delayed coking unit feeding line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104004539A true CN104004539A (en) | 2014-08-27 |
| CN104004539B CN104004539B (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310059657.0A Active CN104004539B (en) | 2013-02-26 | 2013-02-26 | The device and method of the anti-coke blocking of a kind of delayed coking unit feeding line |
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| Country | Link |
|---|---|
| CN (1) | CN104004539B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201077829Y (en) * | 2007-07-19 | 2008-06-25 | 中国石油化工集团公司 | Coke drum bottom feeder |
| CN201400660Y (en) * | 2009-05-05 | 2010-02-10 | 洛阳涧光石化设备有限公司 | Flat-plate type automatic bottom cover machine of coke drum |
| CN203095987U (en) * | 2013-02-26 | 2013-07-31 | 中国石油天然气集团公司 | Device for preventing coke blockage of feed pipeline of delayed coking device |
-
2013
- 2013-02-26 CN CN201310059657.0A patent/CN104004539B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201077829Y (en) * | 2007-07-19 | 2008-06-25 | 中国石油化工集团公司 | Coke drum bottom feeder |
| CN201400660Y (en) * | 2009-05-05 | 2010-02-10 | 洛阳涧光石化设备有限公司 | Flat-plate type automatic bottom cover machine of coke drum |
| CN203095987U (en) * | 2013-02-26 | 2013-07-31 | 中国石油天然气集团公司 | Device for preventing coke blockage of feed pipeline of delayed coking device |
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| Publication number | Publication date |
|---|---|
| CN104004539B (en) | 2015-11-18 |
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