CN202346969U - Washing oil combined distribution device of delayed coking fractionating tower for ultra-low circulating ratio operation - Google Patents
Washing oil combined distribution device of delayed coking fractionating tower for ultra-low circulating ratio operation Download PDFInfo
- Publication number
- CN202346969U CN202346969U CN2011204904897U CN201120490489U CN202346969U CN 202346969 U CN202346969 U CN 202346969U CN 2011204904897 U CN2011204904897 U CN 2011204904897U CN 201120490489 U CN201120490489 U CN 201120490489U CN 202346969 U CN202346969 U CN 202346969U
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- Prior art keywords
- washing
- inlet pipeline
- oil
- delayed coker
- washing oil
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Abstract
The utility model relates to a washing oil combined distribution device of a delayed coking fractionating tower for ultra-low circulating ratio operation. The washing oil combined distribution device comprises a spraying layer positioned inside the delayed coking fractionating tower, an adjusting valve (2) and a temperature sensor (1), wherein the spraying layer comprises an inlet pipeline combined unit (3); the inlet pipeline combined unit (3) comprises a spray nozzle (4); the adjusting valve (2) is positioned outside the delayed coking fractionating tower and is connected with the inlet pipeline combined unit (3); and the temperature sensor (1) is positioned outside the delayed coking fractionating tower and is connected with the adjusting valve (2).
Description
Technical field
The utility model belongs to Liquid Distribution, scrubbing purification or heat exchange field; Relate to a kind of delayed coker fractionator washing oil combination distribution device that is used for ultralow recycle ratio operation, this device can be widely used in Liquid Distribution, gas sweetening washing or the heat transfer process of processes such as petrochemical complex, Coal Chemical Industry, environmental protection.
Background technology
At present, delayed coking unit raw material vacuum residuum gets into the separation column bottom after installing separation column side line, backflow heat exchange with this, mixes back entering process furnace with the turning oil that washs and heats, and transfers to rapidly then and carries out degree of depth heat cracking reaction in the coke drum.The oil gas that cracking produces gets into the separation column heat exchanging segment from the coke drum top, oil gas rises through six layers of heat exchange plate washer and eight layers of tower tray, gets into wax slop or wax oil oil header riser.Wax slop or wax oil are extracted out from oil header by wax slop or wax oil pump, and a part goes out device as product, and all the other return separation column and do upper and lower backflow respectively.Wherein, the main effect of refluxed is exactly to wash oil gas, washs the turning oil in the oil gas get off.In the delayed coking unit of operating greater than 0.15 recycle ratio, because recycle ratio is big, required wax slop or wax oil flow next time are big, and common tower tray and heat exchange plate washer can meet the demands.But for to be lower than the delayed coking unit of 0.15 even 0.05 recycle ratio operation; Wax slop or wax oil flow next time are very little; Common tower tray and heat exchange plate washer can't satisfy rational gas-to-liquid contact, cause tower tray and heat exchange plate washer dry plate and coking, can cause device to stop work when serious.
Therefore, with regard to the bottom-up six layers of heat exchange plate washer of coking fractional distillation column and the effect of eight layers of column plate, mainly play the effect of heat exchange washing; And under this system; Carry the coke powder particle under the washing in the cycles of washing oil, also carry coke powder in the oil gas secretly, also be easy to cause obstruction and the coking of this section column plate.
Therefore, in order effectively to suppress coking in the tower, to improve the stability of operation, reduce the circulation cleaning oil mass and realize ultralow recycle ratio operation, this area presses for develops a kind of novel washing oil combination distribution method and device.
The utility model content
The utility model provides a kind of delayed coker fractionator washing oil combination distribution device that is used for ultralow recycle ratio operation of novelty, thereby has solved the problem that exists in the prior art.
The utility model provides a kind of delayed coker fractionator washing oil combination distribution device that is used for ultralow recycle ratio operation; This device comprises: be positioned at the inner spraying layer of delayed coker fractionator; Said spraying layer comprises the inlet pipeline assembled unit, and this inlet pipeline assembled unit comprises nozzle; It is outside to be positioned at delayed coker fractionator, the variable valve that is connected with said inlet pipeline assembled unit; And it is outside to be positioned at delayed coker fractionator, the TP that is connected with said variable valve.
One preferred embodiment in, said device also comprises and is positioned at delayed coker fractionator liquid-droping groove inner, that place said spraying layer below; And be positioned at delayed coker fractionator baffling washing baffle plate inner, that place said liquid-droping groove below.
Another preferred embodiment in, said spraying layer is a single or multiple lift.
Another preferred embodiment in, the quantity of said nozzle is one or more.
Another preferred embodiment in, the pipeline of said inlet pipeline assembled unit adopts the layout of annular or cross type.
Another preferred embodiment in, the pipeline of said inlet pipeline assembled unit is connected with said nozzle through screw thread or flange.
Description of drawings
Fig. 1 is the structural representation according to the delayed coker fractionator washing oil combination distribution device that is used for ultralow recycle ratio operation of an embodiment of the utility model.
Embodiment
The contriver of the utility model finds after having carried out extensive and deep research; Change the column plate cancellation of existing delayed coker fractionator into cycles of washing oil evenly spray washing; Have the stability that can effectively suppress coking in the tower, improve operation, reduce the circulation cleaning oil mass and realize advantages such as ultralow recycle ratio operation.Based on above-mentioned discovery, the utility model is accomplished.
The technical conceive of the utility model is following:
The multilayer column plate that present coking fractional distillation column is played washing, heat exchange effect changes spray washing into; Realize the controlled purpose of uniform distribution, distribution density of washing oil through the molectron of TEMP, flow control, pressure-controlling and inlet pipeline unit, nozzle; Greatly reduce the usage quantity of cycles of washing oil, improved washing heat exchange effect, realize ultralow recycle ratio operation; And effectively suppress coking in the tower, improved the stability of operation.
The utility model provides a kind of delayed coker fractionator washing oil combination distribution device that is used for ultralow recycle ratio operation; This device relies on TP, variable valve, inlet pipeline assembled unit; And/or the complete unit equipment that baffling washing baffle plate, liquid-droping groove are formed in nozzle and the tower; Realized that oil droplet is evenly distributed in the washing oil spray cross section under the ultralow recycle ratio operational condition, oil droplet size is controlled, the oil droplet distribution density is adjustable, the washing oil mass is controlled, the purpose of washing back oil gas Controllable Temperature.
In the utility model; The combination of depending nozzle realizes the uniform distribution of oil droplet in the washing oil spray cross section, and wherein, spraying layer can be made as single or multiple lift; The size droplet diameter of spray can fall control through pressure, and the washing oil mass of spray can be through the temperature control of washing back oil gas.
In the utility model, washing oil throwing cross section can be made as single or multiple lift, and the quantity of individual layer nozzle can be one or more, according to oil gas impurities amount and oil gas washing back the temperature drop that will realize decide.
In the utility model, the nozzle quantity in every layer of spray cross section can be decided according to tower diameter and required droplet distribution homogeneity, droplet distribution density; Nozzle is center and the method that axially is circular layout and combines in tower, allow the overlapping of spray face, and injector spacing can be the 1/10D to 1D of tower diameter D.
In the utility model; Baffling washing baffle plate and liquid-droping groove are optional accessory in the tower; Realization improves the Impurity removal effect to carrying secretly in the oil gas to the purification and washing and the cooling effect of oil gas, improves washing heat exchange effect and is applicable to the washing process that contains solid particle polluter.
In the utility model, can come the regulating and controlling valve through TP, so that the spray flux of control washing oil, the Applicable temperature of TP is 100-460 ℃, the flow of variable valve can realize that the 50-120% of normal discharge is controlled.
In the utility model, flow, pressure distribution that the inlet pipeline assembled unit is implemented to the spraying layer single-nozzle are even; The piping arrangement of inlet pipeline assembled unit can adopt annular, cross type etc.
In the utility model, nozzle adopts screw thread or flange type of attachment with being connected of inlet pipeline assembled unit, so that the installing and replacing of nozzle.
Below in conjunction with accompanying drawing the utility model is done further to describe, it should be understood that, they only are used to the utility model is described and are not used in the scope of restriction the utility model.
Fig. 1 is the structural representation according to the delayed coker fractionator washing oil combination distribution device that is used for ultralow recycle ratio operation of an embodiment of the utility model.As shown in Figure 1, the oil gas that cracking produces gets into the heat exchanging segment of delayed coker fractionator from the coke drum top, and oil gas rises, and the back gets into washing section after baffling washing baffle plate 5 is removed part coke powder particle; Washing oil gets into behind regulating valve 2 that inlet pipeline assembled unit 3 is distributed to each nozzle 4 in the tower, and the washing oil after nozzle atomization from up to down sprays with oil gas and carries out the reverse washing heat exchange that contacts; This device adopts two-layer spray, arranges 7 nozzles for every layer, and injector spacing is between the 1/5D to 1/2D, to guarantee the homogeneity of spray; The TP 1 outer through tower comes regulating and controlling valve 2, with the spray flux of control washing oil; Through purification and washing and the cooling effect of 6 realizations of the liquid-droping groove in the tower to oil gas.
The major advantage of the utility model is:
The delayed coker fractionator washing oil combination distribution device that is used for ultralow recycle ratio operation of the utility model has realized that oil droplet is evenly distributed in the washing oil spray cross section under the ultralow recycle ratio operational condition of delayed coking, oil droplet size is controlled, the oil droplet distribution density is adjustable; The washing oil mass is controlled, the purpose of washing back oil gas Controllable Temperature; And this device has simple, the characteristics such as droplet distribution is even, size droplet diameter is controlled, washing back oil gas Controllable Temperature of installing; Has the usage quantity that can effectively reduce washing oil; Realize ultralow recycle ratio operation, improve washing or heat exchange effect, prevent advantages such as the interior coking of tower; Improve the stability of the ultralow recycle ratio operation of delayed coking, prolonged the device cycle of operation; This device is also oily applicable to washing (heat exchange) in other tower, the distribution of water.
Though for purpose clear and that understand; The utility model has been carried out detailed description; But after having read present specification, it will be apparent to those skilled in the art that under the prerequisite of spirit that does not depart from the utility model and essence; Can carry out various modifications and change to the utility model, these modifications and change all fall within the included scope of appended claims and equivalents thereof.
Claims (6)
1. one kind is used for the delayed coker fractionator washing oil combination distribution device that ultralow recycle ratio is operated; It is characterized in that; This device comprises: be positioned at the inner spraying layer of delayed coker fractionator; Said spraying layer comprises inlet pipeline assembled unit (3), and this inlet pipeline assembled unit (3) comprises nozzle (4); It is outside to be positioned at delayed coker fractionator, the variable valve (2) that is connected with said inlet pipeline assembled unit (3); And it is outside to be positioned at delayed coker fractionator, the TP (1) that is connected with said variable valve (2).
2. device as claimed in claim 1 is characterized in that, said device also comprises and is positioned at delayed coker fractionator liquid-droping groove (6) inner, that place said spraying layer below; And be positioned at delayed coker fractionator baffling washing baffle plate (5) inner, that place said liquid-droping groove (6) below.
3. according to claim 1 or claim 2 device is characterized in that said spraying layer is a single or multiple lift.
4. according to claim 1 or claim 2 device is characterized in that the quantity of said nozzle (4) is one or more.
5. according to claim 1 or claim 2 device is characterized in that, the pipeline of said inlet pipeline assembled unit (3) adopts the layout of annular or cross type.
6. according to claim 1 or claim 2 device is characterized in that, the pipeline of said inlet pipeline assembled unit (3) is connected with said nozzle (4) through screw thread or flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204904897U CN202346969U (en) | 2011-11-30 | 2011-11-30 | Washing oil combined distribution device of delayed coking fractionating tower for ultra-low circulating ratio operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204904897U CN202346969U (en) | 2011-11-30 | 2011-11-30 | Washing oil combined distribution device of delayed coking fractionating tower for ultra-low circulating ratio operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202346969U true CN202346969U (en) | 2012-07-25 |
Family
ID=46535986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204904897U Expired - Lifetime CN202346969U (en) | 2011-11-30 | 2011-11-30 | Washing oil combined distribution device of delayed coking fractionating tower for ultra-low circulating ratio operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202346969U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103468308A (en) * | 2013-09-23 | 2013-12-25 | 博英睿科(北京)科技有限公司 | Coking delay equipment and method capable of optimizing product quality and liquid yield |
| CN108641742A (en) * | 2018-05-24 | 2018-10-12 | 董国良 | A kind of anti-coke powder carrying device of delayed coker fractionator side line |
| CN113318547A (en) * | 2021-05-18 | 2021-08-31 | 上海灿越化工科技有限公司 | Method and device for removing coke powder from delayed coking quenching oil gas |
-
2011
- 2011-11-30 CN CN2011204904897U patent/CN202346969U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103468308A (en) * | 2013-09-23 | 2013-12-25 | 博英睿科(北京)科技有限公司 | Coking delay equipment and method capable of optimizing product quality and liquid yield |
| CN103468308B (en) * | 2013-09-23 | 2016-01-20 | 博英睿科(北京)科技有限公司 | A kind of can the delayed coking Apparatus and method for of optimizing product quality and liquid yield |
| CN108641742A (en) * | 2018-05-24 | 2018-10-12 | 董国良 | A kind of anti-coke powder carrying device of delayed coker fractionator side line |
| CN113318547A (en) * | 2021-05-18 | 2021-08-31 | 上海灿越化工科技有限公司 | Method and device for removing coke powder from delayed coking quenching oil gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120725 |