CN203487098U - Delayed coking heavy wax oil sump tank device capable of preventing gas phase entrainment - Google Patents
Delayed coking heavy wax oil sump tank device capable of preventing gas phase entrainment Download PDFInfo
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- CN203487098U CN203487098U CN201320589345.6U CN201320589345U CN203487098U CN 203487098 U CN203487098 U CN 203487098U CN 201320589345 U CN201320589345 U CN 201320589345U CN 203487098 U CN203487098 U CN 203487098U
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- oil header
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- oil sump
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Abstract
The utility model discloses a delayed coking heavy wax oil sump tank device capable of preventing gas phase entrainment and belongs to the field of the petroleum and chemical technology. The device consists of an oil sump tank standpipe, an inverted U-shaped damper, an oil sump tank bottom plate, an oil sump tank down-flow plate, an oil sump tank withdrawal hopper, an oil sump tank overflow port, a heavy wax oil withdrawal pipeline and the like. The device disclosed by the utility model is capable of removing contaminants such as entrainment, droplets and coke powder solid entrained by the rising gas phase, thus the contaminants are prevented from being taken to an upper wax oil section to influence the quality of wax oil products. The oil sump tank bottom plate is arranged obliquely, so the flow speed of liquid on the oil sump tank can be accelerated, the coke powder solid can be fast taken into the withdrawal hopper, and coke powder can be prevented from depositing on the oil sump tank to cause other problems. The total height of the heavy wax oil sump tank is reduced greatly, so the total height of a newly constructed fractionating tower can be lowered, and the steel consumption is reduced.
Description
Technical field
The utility model belongs to petrochemical technology field, is specifically related to a kind of delayed coking heavy gas oil accumulator device that prevents Vapor Entrainment.
Background technology
In the separation column of delayed coking unit, the effect of heavy gas oil accumulator is to collect wax slop liquid, for wax slop pump, extracts out enough liquid levels are provided, and prevents wax slop pump depletion.Conventional delayed coking heavy gas oil accumulator base plate is oval arch, centre only has a large air rising hole, above air rising hole, there is a liquid baffle board, prevent that the liquid that top falls from falling into oil header bottom from air rising hole, the height of oil header is generally 3 meters of left and right, in actual motion, heavy gas oil accumulator liquid level maintains 2 meters of left and right.
Conventional delayed coking heavy gas oil accumulator Main Function is mainly to collect liquid to provide liquid level for wax slop extractor pump.Delayed coking reaction oil gas is generally entrained with the pollutents such as mist, drop, coke breeze solid particles, these pollutents of Vapor Entrainment are by after heavy gas oil accumulator, to enter separation column top wax oil section, pollute wax oil product, cause wax oil product to contain a large amount of coke powders, and carbon residue content is high, do height; In the middle of conventional delayed coking heavy gas oil accumulator, only has a large air rising hole, air rising hole in the middle of the gas rising on bottom first will gather, by redispersion after air rising hole, risen and entered separation column top, this will cause gas distribution inhomogeneous, and air rising hole is larger from top tray spacing; Conventional delayed coking heavy gas oil accumulator liquid residence time is generally designed to 3-5 minute, the residence time of liquid in oil header is long, in actually operating, oil header liquid level control ratio is higher, and the base plate of oil header is oval arch, the place connecting at He Tabi forms a bent angle, causes liquid to be not easy to flow, and easily causes the deposition of solid, long-time operation, because solid accumulation is too high, easily causes wax slop to extract a mouthful obstruction out.
Utility model content
The utility model is easily carried dirt secretly for the gas phase in current heavy gas oil accumulator, the deposition of coke powder solid in oil header, and the problem that wax oil quality product is low, proposes a kind of delayed coking heavy gas oil accumulator device that prevents Vapor Entrainment.
A kind of delayed coking heavy gas oil accumulator device that prevents Vapor Entrainment, this device is positioned at fractionation tower body 11 inside, plate 10 is positioned at the top of oil header 9, oil header 9 is connected on fractionation tower body 11 by oil header base plate 6 and extraction bottom sheet 3, oil header is extracted the side that bucket 2 is positioned at oil header 9 out, wax slop is extracted pipeline 1 out and is connected with oil header extraction bucket 2, oil header liquid discharging plate 5 gos deep into oil header downwards and extracts out in bucket 2, oil header liquid discharging plate 5 is connected with oil header base plate 6, oil header riser 7 is positioned on oil header base plate 6, inverted U baffle plate 8 is positioned at oil header riser 7 tops.
Oil header is extracted bucket 2 out and is formed by extracting bottom sheet 3 out and extracting bucket overflow weir 4 out.
The bottom of described wax slop extraction pipeline 1 is concordant with extraction bottom sheet 3, and base plate drain hole is not set.
Described oil header base plate 6 is tilting, and the angle of inclination is 1-3 degree, extracts bucket 2 directions out tilt to oil header.
The number of described oil header riser 7 is 10-100, and inverted U baffle plate 8 is identical with the number of oil header riser 7.
The total height of described heavy gas oil accumulator device is 1-1.5 rice; The height of described oil header riser 7 is 200-300 millimeter.
The beneficial effects of the utility model: device of the present utility model can, by pollutant removings such as the mist of rising Vapor Entrainment, drop, coke powder solids, prevent that pollutent is brought into the quality that top wax oil section affects wax oil product; Adopt the design of many riseies, make through the gas distribution of overweight wax oil header more evenly, be conducive to improve the fractionating effect of tower, and can reduce the distance between oil header and top tower tray, reduce the height of full tower; The base plate of oil header adopts tilting design, can the velocity of flow of accelerating liquid on oil header, and coke powder solid is brought into fast and extracted out in bucket, prevent that coke powder from depositing and causing other problems on oil header; Oil header liquid residence time is shorter, and the wax slop that carries solid coke powder body is drawn out of fast, prevents that coke powder deposition in extracting bucket out from causing other problems; The extraction bucket of oil header is designed with overflow port, if the excessive or wax slop of amount of liquid is extracted pipeline out and is stopped transport on oil header, liquid can fall into automatically from overflow port the bottom of tower, and can not accumulate on the base plate of oil header, also can not exceed and make liquid fall to upset in tower from riser to operate because of liquid level; The base plate of oil header does not arrange drain hole, during normal operation, all wax slops are all extracted pipeline by wax slop and are extracted out, and it is concordant that wax slop is extracted the base plate of the bottom of pipeline extracting bucket out with oil header out, installs when oil is moved back in shut-down, oil in separation column all can be extracted out, be guaranteed the security of break-down maintenance; Owing to there not being liquid level on the base plate of oil header, and liquid rapid flow enters and extracts bucket out, so that the height of oil header riser can drop to is minimum, is 200-300 millimeter, can reduce the consumption of steel; The total height of heavy gas oil accumulator reduces greatly, can make the height overall of newly-built separation column reduce, and reduces rolled steel dosage.
Accompanying drawing explanation
Fig. 1 is the utility model heavy gas oil accumulator apparatus structure schematic diagram;
In figure, 1-wax slop is extracted pipeline out, 2-oil header is extracted bucket, 3-extraction bottom sheet, 4-extraction bucket overflow weir, 5-oil header liquid discharging plate, 6-oil header base plate, 7-oil header riser, 8-inverted U baffle plate, 9-oil header, 10-plate, 11-fractionation tower body out.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
A kind of delayed coking heavy gas oil accumulator device that prevents Vapor Entrainment, as shown in Figure 1, this device is positioned at fractionation tower body 11 inside, plate 10 is positioned at the top of oil header 9, oil header 9 is connected on fractionation tower body 11 by oil header base plate 6 and extraction bottom sheet 3, oil header is extracted the side that bucket 2 is positioned at oil header 9 out, wax slop is extracted pipeline 1 out and is connected with oil header extraction bucket 2, oil header liquid discharging plate 5 gos deep into oil header downwards and extracts out in bucket 2, oil header liquid discharging plate 5 is connected with oil header base plate 6, oil header riser 7 is positioned on oil header base plate 6, inverted U baffle plate 8 is positioned at oil header riser 7 tops.
Oil header is extracted bucket 2 out and is formed by extracting bottom sheet 3 out and extracting bucket overflow weir 4 out, and oil header riser 7 and oil header liquid discharging plate 5 form overflow port, prevent that oil header liquid level from surpassing the base plate of oil header.
The bottom of wax slop extraction pipeline 1 is concordant with extraction bottom sheet 3, and base plate drain hole is not set, and when device is stopped work, the trapped fuel in oil header can all be taken away from extracting pipeline out, prevents the interior trapped fuel of oil header.
Oil header base plate 6 is tilting, and the angle of inclination is 2 degree, extracts bucket (2) direction out tilt to oil header, is mainly in order to make the liquid that top falls flow into fast oil header extraction bucket 2, to reduce the residence time of liquid on oil header liquid discharging plate 5.
The number of oil header riser 7 is 50, and inverted U baffle plate 8 is identical with the number of oil header riser 7.
The total height of heavy gas oil accumulator device is 1.2 meters; The height of described oil header riser 7 is 250 millimeters.
On oil header base plate 6, there is not liquid level, the liquid that top falls all flows to oil header and extracts bucket 2 out, the liquid level of oil header is controlled at oil header and extracts out in bucket 2, the liquid level of oil header maximum is no more than the height of weir plate that oil header is extracted bucket 2 out, if while causing in oil header that due to fluctuation the too high or wax slop of liquid level is extracted pipeline out and stopped transport, liquid can flow out the bottom that falls into tower from the overflow port of oil header extraction bucket 2, and liquid can not stop on oil header base plate 6.
Described inverted U baffle plate 8 is buckled in the top of oil header riser 7, and the two forms a gas break-in passage.Gas enters backward upper the flowing of oil header riser 7, then run into inverted U baffle plate 8, gas is proceeded to gas break-in passage, gas first turns over 180 degree angle current downflow, and then turn on 180 degree angles mobile, by such process, the gas rising in separation column has entered the top of separation column by oil header riser 7 and inverted U baffle plate 8.In separation column, gas phase is when passing through the gas break-in passage of oil header, the mist of Vapor Entrainment, drop, coke powder solid etc. when gas phase turns to rising for the second time because gravity reason falls, fall on oil header base plate 6, along with the fallen liquid in oil header top flows into oil header fast, extract out in bucket, by oil header, extracted out pipeline and take away.
The key problem in technology point of the present embodiment is:
1, adopt a plurality of oil header riseies, oil header riser is evenly distributed on whole oil header, makes gas distribution more even.
2, adopt with the oil header riser that turns to passage, by contaminant removal such as the mist of carrying secretly in gas, drop, coke powder solids.
3, adopt tilting oil header back-plane design, on quickening oil header, wax slop is mobile, and coke powder solid on oil header is brought into fast and extracted out in bucket.
4, oil header adopts full extraction type design, and the bottom of wax slop extraction pipeline is concordant with oil header extraction bottom sheet.
5, the extraction bucket of oil header is provided with overflow port, and when falling into the excessive or wax slop of the wax slop amount of oil header and extract pipeline out and stop transport, the liquid in oil header can fall into separation column bottom.
6, the liquid residence time of oil header is designed to 1.5 minutes, prevents the overstand of liquid in oil header.
Claims (7)
1. a delayed coking heavy gas oil accumulator device that prevents Vapor Entrainment, it is characterized in that, this device is positioned at fractionation tower body (11) inside, plate (10) is positioned at the top of oil header (9), oil header (9) is connected on fractionation tower body (11) by oil header base plate (6) and extraction bottom sheet (3), oil header is extracted the side that bucket (2) is positioned at oil header (9) out, wax slop is extracted pipeline (1) out and is connected with oil header extraction bucket (2), oil header liquid discharging plate (5) gos deep into oil header downwards and extracts out in bucket (2), oil header liquid discharging plate (5) is connected with oil header base plate (6), oil header riser (7) is positioned on oil header base plate (6), inverted U baffle plate (8) is positioned at oil header riser (7) top.
2. a kind of delayed coking heavy gas oil accumulator device that prevents Vapor Entrainment according to claim 1, is characterized in that, oil header is extracted bucket (2) out and formed by extracting bottom sheet (3) out and extracting the overflow weir (4) that struggles against out.
3. a kind of delayed coking heavy gas oil accumulator device that prevents Vapor Entrainment according to claim 1, is characterized in that, oil header riser (7) and oil header liquid discharging plate (5) form overflow port.
4. a kind of delayed coking heavy gas oil accumulator device that prevents Vapor Entrainment according to claim 1, is characterized in that, it is concordant with extraction bottom sheet (3) that described wax slop is extracted the bottom of pipeline (1) out, and base plate drain hole is not set.
5. a kind of delayed coking heavy gas oil accumulator device that prevents Vapor Entrainment according to claim 1, is characterized in that, described oil header base plate (6) is tilting, and the angle of inclination is 1-3 degree, extracts bucket (2) direction out tilt to oil header.
6. a kind of delayed coking heavy gas oil accumulator device that prevents Vapor Entrainment according to claim 1, it is characterized in that, the number of described oil header riser (7) is 10-100, and inverted U baffle plate (8) is identical with the number of oil header riser (7).
7. a kind of delayed coking heavy gas oil accumulator device that prevents Vapor Entrainment according to claim 1, is characterized in that, the total height of described heavy gas oil accumulator device is 1-1.5 rice; The height of described oil header riser (7) is 200-300 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320589345.6U CN203487098U (en) | 2013-09-24 | 2013-09-24 | Delayed coking heavy wax oil sump tank device capable of preventing gas phase entrainment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320589345.6U CN203487098U (en) | 2013-09-24 | 2013-09-24 | Delayed coking heavy wax oil sump tank device capable of preventing gas phase entrainment |
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| CN203487098U true CN203487098U (en) | 2014-03-19 |
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| CN201320589345.6U Expired - Lifetime CN203487098U (en) | 2013-09-24 | 2013-09-24 | Delayed coking heavy wax oil sump tank device capable of preventing gas phase entrainment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106117013A (en) * | 2016-07-08 | 2016-11-16 | 深圳市诚达科技股份有限公司 | The method of purification of a kind of 1,3 propylene glycol and device thereof |
| CN110556230A (en) * | 2018-06-04 | 2019-12-10 | 株洲变流技术国家工程研究中心有限公司 | Transformer oil collecting tank |
| CN113457187A (en) * | 2021-07-02 | 2021-10-01 | 武汉金中石化工程有限公司 | Suspension bed hydrogenation solid-containing oil distillation equipment |
-
2013
- 2013-09-24 CN CN201320589345.6U patent/CN203487098U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106117013A (en) * | 2016-07-08 | 2016-11-16 | 深圳市诚达科技股份有限公司 | The method of purification of a kind of 1,3 propylene glycol and device thereof |
| CN110556230A (en) * | 2018-06-04 | 2019-12-10 | 株洲变流技术国家工程研究中心有限公司 | Transformer oil collecting tank |
| CN113457187A (en) * | 2021-07-02 | 2021-10-01 | 武汉金中石化工程有限公司 | Suspension bed hydrogenation solid-containing oil distillation equipment |
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Granted publication date: 20140319 |
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