CN110144239A - A kind of Coking Tower for Delayed Coking Unit is cold burnt to vapour treatment process - Google Patents
A kind of Coking Tower for Delayed Coking Unit is cold burnt to vapour treatment process Download PDFInfo
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- CN110144239A CN110144239A CN201910569260.3A CN201910569260A CN110144239A CN 110144239 A CN110144239 A CN 110144239A CN 201910569260 A CN201910569260 A CN 201910569260A CN 110144239 A CN110144239 A CN 110144239A
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- temperature
- steam
- vapour
- pressure reducer
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G9/00—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
- C10G9/34—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils by direct contact with inert preheated fluids, e.g. with molten metals or salts
- C10G9/36—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils by direct contact with inert preheated fluids, e.g. with molten metals or salts with heated gases or vapours
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
A kind of Coking Tower for Delayed Coking Unit is cold burnt to vapour treatment process, including gives vapour step greatly, and the concrete operations to vapour step greatly include: that the steam of 1.0Mpa is injected into coke drum；And it is also added side by side all the way by the condensed water of temperature-decreased pressure reducer processing；Saturated vapor is finally substituted as the medium that steams out greatly using low pressure moist steam and enters coke drum.Present invention process can either significantly reduce energy consumption, and can slow down very big to the impact that the generation of full factory's steam pipe network is very big, moreover it is possible to ensure that coking avoids the load fluctuation of boiler in switching tower.
Description
Technical field
It is cold burnt to vapour treatment process that the present invention relates to a kind of Coking Tower for Delayed Coking Unit, belongs to delayed coking coke drum skill
Art field.
Background technique
Coking Tower for Delayed Coking Unit processing stage mainly include it is small to vapour, greatly to vapour, small water supply, big water supply, overflow,
It discharges water, cuts burnt processing, catch up with air, preheat and cut tower, whole cycle is incremental, indispensable.In general, being needed to vapour process greatly
A large amount of 1.0Mpa steam injection, is stripped off a large amount of high-temperature oil gas in focus layer, sufficiently recycles the oil gas of old tower, reduce petroleum
Burnt volatile matter improves Petroleum Coke.A large amount of steam consumption is a big energy consumption point of device, how to be dropped by Optimizing Reconstruction
It is low to give vapour dosage greatly, while ensuring product quality, it appears it is particularly important.
In addition, to up to 430 DEG C of coke temperature in coke drum before vapour, heat transfer temperature difference can be made too big with low-temperature cooling media and
Chilling is caused, quenching factor is big, leads to burned and causes Thermal Stress to tower wall, influences the safe operation and use of coke drum
Service life, while increasing production accident probability of happening.
Summary of the invention
In order to overcome existing above-mentioned deficiency, the present invention provides that a kind of Coking Tower for Delayed Coking Unit is cold burnt to give vapour processing work
Skill, the technique can either significantly reduce energy consumption, and can slow down very big to the impact that the generation of full factory's steam pipe network is very big, moreover it is possible to ensure
Coking avoids the load fluctuation of boiler in switching tower.
The technical solution used to solve the technical problems of the present invention is that: it is big to the specific of vapour step including giving vapour step greatly
Operation includes: that the steam of 1.0Mpa is injected into coke drum；And it is also added side by side all the way by temperature-decreased pressure reducer processing
Condensed water, the branch finally substitute original saturated vapor as the medium that steams out greatly using low pressure moist steam and enter coke drum.
Compared with prior art, a kind of Coking Tower for Delayed Coking Unit of the invention is cold burnt to vapour treatment process, is not changing
Under conditions of device operating condition, the operation handled by increasing temperature-decreased pressure reducer is sufficiently mixed condensed water and the cold burnt processing of steam, real
Coke drum is showed to be replaced to steam consumption a part in vapour treatment process by condensed water greatly, has significantly reduced plant energy consumption, slow down
Full factory's steam pipe network is impacted very big, also ensures that coking avoids the load fluctuation of boiler in switching tower.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the structural schematic diagram of one embodiment of the invention.
In figure: 1, condensation flow meter, 2, level-one regulating valve, 3, second level regulating valve, 4, give steam flow meter, 5, give vapour adjust
Valve, 6, mixing after temperature spot, 7, mixing after pressure spot, 8, temperature-decreased pressure reducer.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, belongs to protection scope of the present invention.
Fig. 1 shows the structural schematic diagram of a preferred embodiment of the invention, and one of figure delayed coking unit is burnt
Charcoal tower is cold burnt to vapour treatment process, including gives vapour greatly, includes: greatly by 1.0Mpa pipe network by 1.0Mpa's to the concrete operations of vapour
Low-pressure steam is injected into coke drum；And the condensed water handled all the way by temperature-decreased pressure reducer 8 is added side by side simultaneously；Finally with
Low pressure moist steam substitution saturated vapor enters coke drum as the medium that steams out greatly.The embodiment of the present invention is mainly to utilize the cold of recycling
Condensate replaces deaerated water, reduces the usage amount of deaerated water, and now big is to vapour by filling the water " moist steam " instead of original " saturation
Steam ".
In the present embodiment, the process handled by temperature-decreased pressure reducer 8 includes: condensed water using two-stage regulating valve
Process is filled the water, successively enters temperature-decreased pressure reducer 8, after encountering saturated vapor in temperature-decreased pressure reducer 8, passes through temperature-decreased pressure reducer 8
Effect is atomized and has been mixed, and low pressure moist steam is formed.Wherein, two-stage regulating valve water filling process includes: condensed water
Enter temperature-decreased pressure reducer 8, level-one regulating valve by level-one regulating valve 2 and second level regulating valve 3 respectively after condensation flow meter 1
2 preliminary water supply mixing, the water supply once again of second level regulating valve 3 mixing.The steam of the 1.0Mpa pass sequentially through to steam flow meter 4 and to
Enter temperature-decreased pressure reducer 8 after steam control valve 5.Preferably, the low pressure moist steam come out by the temperature-decreased pressure reducer 8, temperature are
130 DEG C, pressure is not more than 0.6Mpa.
It is further preferred that the process that the temperature-decreased pressure reducer 8 is handled is using DN25 pipeline, the steam of 1.0Mpa is direct
Injection is by DN250 pipeline, and steam is through using DN200 pipeline after temperature-decreased pressure reducer 8.
Present invention implementation is mainly to increase a temperature-decreased pressure reducer 8, desuperheat subtracts on the basis of existing through-type technique
Depressor 8 using two-stage regulating valve fill the water process, condensed water by condensation flow meter 1, level-one regulating valve 2, second level regulating valve 3 into
Enter temperature-decreased pressure reducer 8, the preliminary water supply of level-one regulating valve 2 mixing, the water supply once again of second level regulating valve 3 mixing, while 1.0Mpa's is low
Press steam by entering temperature-decreased pressure reducer 8 to steam flow meter 4, to steam control valve 5, using temperature-decreased pressure reducer 8 by condensate water atomizing
It is mixed into low pressure moist steam, is filled the water and is atomized using two-stage regulating valve, sufficiently regulates and controls temperature, i.e. temperature upon mixing after pressure and temperature reducing
6 detection temperature of point control 130 DEG C or so, while observing the pressure of pressure spot 7 after mixing no more than 0.6Mpa, with low pressure moist steam
Substitution saturated vapor is as the medium that steams out greatly.In turn, low pressure moist steam enters coke drum (A tower, B tower are used alternatingly) afterwards and high temperature
After coke contact, low pressure moist steam gasifies rapidly, has not only played to the cooling effect of high-temperature coke, but also can strip inside coke drum
Oil gas, vapor, oil gas, which are sent from top of coke tower to blowdown system, carries out cooling recycling.
Locally gasification, rapid spatial expansion when entering focus layer in order to avoid water, causes the accident risk of burned and stifled tower,
And keep focus layer cooling more evenly, tower wall temperature stress influences smaller.Need to monitor key parameter (the cooling speed of coke drum simultaneously
Degree, pressure etc.) ensure safety operation.Under the premise of guaranteeing coke drum safe condition, water maximum operation.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, it is all according to
According to technical spirit of the invention, any simple modification and same variation are made to above embodiments, each fall within guarantor of the invention
Within the scope of shield.
Claims (6)
1. a kind of Coking Tower for Delayed Coking Unit is cold burnt to vapour treatment process, including gives vapour greatly, include: to the concrete operations of vapour greatly
The steam of 1.0Mpa is injected into coke drum, characterized in that be also added side by side all the way by the cold of temperature-decreased pressure reducer (8) processing
Condensate；Finally enter coke drum using low pressure moist steam as the medium that steams out greatly.
2. a kind of Coking Tower for Delayed Coking Unit according to claim 1 is cold burnt to vapour treatment process, characterized in that described
Include: condensed water using two-stage regulating valve water filling process by the process that temperature-decreased pressure reducer (8) are handled, successively enters pressure and temperature reducing
Device (8) is atomized and is mixed by the effect of temperature-decreased pressure reducer (8) after encountering saturated vapor in temperature-decreased pressure reducer (8),
Form low pressure moist steam.
3. a kind of Coking Tower for Delayed Coking Unit according to claim 2 is cold burnt to vapour treatment process, characterized in that described
Two-stage regulating valve water filling process includes: that condensed water passes through level-one regulating valve (2) and second level respectively after condensation flow meter (1)
Regulating valve (3) enters temperature-decreased pressure reducer (8), the preliminary water supply mixing of level-one regulating valve (2), and second level regulating valve (3) water supply once again is mixed
It closes.
4. a kind of Coking Tower for Delayed Coking Unit according to claim 2 or 3 is cold burnt to vapour treatment process, it is characterized in that:
The steam of the 1.0Mpa passes sequentially through to steam flow meter (4) and enters temperature-decreased pressure reducer (8) afterwards to steam control valve (5).
5. a kind of Coking Tower for Delayed Coking Unit according to claim 4 is cold burnt to vapour treatment process, it is characterized in that: by
The low pressure moist steam that the temperature-decreased pressure reducer (8) comes out, temperature are 130 DEG C, and pressure is not more than 0.6Mpa.
6. a kind of Coking Tower for Delayed Coking Unit according to claim 4 is cold burnt to vapour treatment process, it is characterized in that: described
The process of temperature-decreased pressure reducer (8) processing use DN25 pipeline, the steam of 1.0Mpa is directly injected into through DN250 pipeline, steam
Through using DN200 pipeline after temperature-decreased pressure reducer (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910569260.3A CN110144239A (en) | 2019-06-27 | 2019-06-27 | A kind of Coking Tower for Delayed Coking Unit is cold burnt to vapour treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910569260.3A CN110144239A (en) | 2019-06-27 | 2019-06-27 | A kind of Coking Tower for Delayed Coking Unit is cold burnt to vapour treatment process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110144239A true CN110144239A (en) | 2019-08-20 |
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ID=67596687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910569260.3A Pending CN110144239A (en) | 2019-06-27 | 2019-06-27 | A kind of Coking Tower for Delayed Coking Unit is cold burnt to vapour treatment process |
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| Country | Link |
|---|---|
| CN (1) | CN110144239A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329633A (en) * | 2011-08-31 | 2012-01-25 | 上海优华系统集成技术有限公司 | Energy-saving process of steam mass blowing flow in delayed coking device |
| CN203440306U (en) * | 2013-09-02 | 2014-02-19 | 山西宏特煤化工有限公司 | Needle coke production device |
| CN205821247U (en) * | 2016-07-08 | 2016-12-21 | 中化弘润石油化工有限公司 | The cold burnt of delayed coking coke drum improves device |
-
2019
- 2019-06-27 CN CN201910569260.3A patent/CN110144239A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329633A (en) * | 2011-08-31 | 2012-01-25 | 上海优华系统集成技术有限公司 | Energy-saving process of steam mass blowing flow in delayed coking device |
| CN203440306U (en) * | 2013-09-02 | 2014-02-19 | 山西宏特煤化工有限公司 | Needle coke production device |
| CN205821247U (en) * | 2016-07-08 | 2016-12-21 | 中化弘润石油化工有限公司 | The cold burnt of delayed coking coke drum improves device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20190820 |