CN102329633B - Energy-saving process of steam mass blowing flow in delayed coking device - Google Patents
Energy-saving process of steam mass blowing flow in delayed coking device Download PDFInfo
- Publication number
- CN102329633B CN102329633B CN 201110254588 CN201110254588A CN102329633B CN 102329633 B CN102329633 B CN 102329633B CN 201110254588 CN201110254588 CN 201110254588 CN 201110254588 A CN201110254588 A CN 201110254588A CN 102329633 B CN102329633 B CN 102329633B
- Authority
- CN
- China
- Prior art keywords
- flow
- water
- spraying gun
- steam
- energy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000004939 coking Methods 0.000 title claims abstract description 14
- 230000003111 delayed effect Effects 0.000 title claims abstract description 10
- 238000007664 blowing Methods 0.000 title abstract 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 238000005507 spraying Methods 0.000 claims description 34
- 239000000571 coke Substances 0.000 claims description 30
- 239000007791 liquid phase Substances 0.000 claims description 13
- 241000282326 Felis catus Species 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010025 steaming Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract 6
- 239000003208 petroleum Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 239000002006 petroleum coke Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005235 decoking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
Abstract
The invention relates to the technical field of petroleum chemical industry, particularly to an energy-saving process of a steam mass blowing flow in a delayed coking device. The energy-saving process comprises an atomizer and a coking tower, wherein steam is conveyed to one inlet of the atomizer after the flow is adjusted; liquid water is conveyed to the other inlet of the atomizer after the flow is adjusted; steam flows at a high speed and atomizes liquid water into a micron-scale liquid drop state in the atomizer; and the atomized water in the micro-scale liquid drop state is conveyed to the coking tower from the outlet of the atomizer so as to carry out the steam mass blowing flow. Compared with the traditional steam mass blowing flow, liquid water is used for replacing steam, thus the steam consumption is saved by more than 70%; and compared with existing whole-water flow, water in the micro-scale liquid drop state is used for avoiding the problem caused by expansion in a water steaming process, thus the steam mass blowing flow can basically achieve the effect of the traditional steam mass blowing flow, and furthermore, the safety performance is improved and the service life of the coking tower is prolonged.
Description
Technical field
The present invention relates to the petrochemical technology field, the energy-saving technique of the flow process that specifically steams out greatly in a kind of delayed coking unit.
Background technology
Delayed coking is one of important Production Flow Chart of oil-refining chemical.Delayed coking is with the residual oil in the oil refining process, through after the process furnace heating, transfers to rapidly in the coke drum, makes residual oil Pintsch process and produce lightweight oil and the process of petroleum coke in coke drum.
Coke drum is as the core process equipment of delayed coking, and its operating features is the circulation that colds and heat succeed each other, and the temperature cycle process is as follows in the tower: 1. will be heated to residual oil about 420 ℃ through process furnace and send into coke drum and carry out coking reaction and generate petroleum coke; 2. carry out cold burnt process: the petroleum coke that generates is cooled to about 45 ℃ by about 420 ℃; 3. high pressure water is passed into coke drum, carry out the water-cooled decoking; 4. through processes such as preheatings, 420 ℃ of high temperature residual oil are sent into coke drum.
Wherein, cold burnt process is divided into: littlely steam out, steam out greatly, little feedwater and four steps that feed water greatly.In traditional technology, steaming out greatly generally is to utilize system's steam as heat-eliminating medium.Residual oil in the coke drum is cooled to about 330 ℃ from about 420 ℃, need to consume the steam of 1.0Mpa, every tower consumes quantity of steam and is about 30 tons, with the switching flow of 2 stoves, the 4 tower systems of general refinery, 150 times/the tower that goes into operation the whole year calculates, and 4 annual quantity of steams that consume of tower are about 1.8 ten thousand tons.And this blocked operation is periodical operation, and is larger on the balance of steam impact of full factory.
In traditional technology, steaming out does not greatly use water as heat-eliminating medium with vapour, mainly is because excessive with water-cooled Jiao's cooling rate, can produce larger Thermal Stress to the tower wall, thereby affect the work-ing life of coke drum.
In recent years, many refinerys have carried out the trial of the full modify-water that steams out greatly, and some factory has obtained good effect, does not produce the accidents such as burned.But because water when entering coke drum, has a phase change expansion process, and when large one current entered coke drum, the swell increment of water was very large.In the coke drum ingress, water vapor and the excessive expanding volume that produces is easy to cause coke landslide in the tower, thus blocking channel causes the accident.Therefore, a kind of energy-saving technique that can make water security enter coke drum of design is vital.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of energy-saving technique that can make water security enter coke drum to be.
In order to achieve the above object, the present invention includes spraying gun and coke drum, it is characterized in that: water vapor transfers to the entrance of spraying gun after Flow-rate adjustment, and the steam rates that enters spraying gun is controlled according to the blending agent temperature of spraying gun outlet and the liquid phase water flow that enters spraying gun; Liquid phase water transfers to another entrance of spraying gun after Flow-rate adjustment, the liquid phase water flow that enters spraying gun is controlled according to default flow and the pressure of coke drum cat head; In spraying gun, the water vapor flow at high speed also is atomized into micron-sized drop state with liquid phase water, and the water of the micron-sized drop state after the atomizing transfers to the coke drum flow process that steams out greatly from the outlet of spraying gun.
The Parameter Conditions of steam is as follows in the described spraying gun: the normal discharge scope is 0.3t/h-15t/h, and peak flow is 20t/h, and pressure range is 0.6MPa-1.2MPa, and temperature range is 180 ℃-250 ℃.
The Parameter Conditions of water is as follows in the described spraying gun: the normal discharge scope is 0t/h-12t/h, and peak flow is 15t/h, and pressure range is 0.5MPa-3.5MPa, and temperature range is: 40 ℃-250 ℃.
The present invention compares with the tradition flow process that steams out greatly, adopts liquid phase water to replace water vapor, saves the water vapor consumption more than 70%; The present invention compares with existing full modify-water flow process, adopt the water of micron-sized superfine small droplets state, the problem of having avoided the water vapor process to expand and cause, thereby the flow process that steams out is greatly steamed out greatly in the effect of flow process substantially reaching tradition, make also that safety performance is improved, prolonged the work-ing life of coke drum.
Description of drawings
Fig. 1 is connection diagram of the present invention.
Referring to Fig. 1,1 is spraying gun; 2 is coke drum; 3 is the PLC system.
Embodiment
Now by reference to the accompanying drawings the present invention is described further.
Referring to Fig. 1, the present invention includes spraying gun and coke drum.Water vapor transfers to the entrance of spraying gun 1 after Flow-rate adjustment, the steam rates that enters spraying gun 1 is controlled according to the blending agent temperature of spraying gun 1 outlet and the liquid phase water flow that enters spraying gun 1; Liquid phase water transfers to another entrance of spraying gun 1 after Flow-rate adjustment, the liquid phase water flow that enters spraying gun 1 is controlled according to default flow and the pressure of coke drum 2 cats head; In spraying gun 1, the water vapor flow at high speed also is atomized into micron-sized drop state with liquid phase water, and the water of the micron-sized drop state after the atomizing transfers to coke drum 2 flow process that steams out greatly from the outlet of spraying gun 1.Although the water of micron order drop state volume when entering coke drum 2 still has larger expansion, but because flow state and the steam of the water of micron order drop state are very approaching, so the water of micron order drop state can not cause burned and the accident that coke drum 2 blocks up towers occurs in local rapid expansion.The water that enters the micron order drop state in the coke drum 2 makes the petroleum coke cooling more even, makes the tower wall of coke drum 2 be subjected to the impact of thermal stress less.The present invention is by the PLC system 3 full automatic control flow process that steams out greatly, and tower wall temperature and Vibration Condition that can Real Time Monitoring coke drum 1.
The Parameter Conditions of steam is as follows in the spraying gun 1: the normal discharge scope is 0.3t/h-15t/h, and peak flow is 20t/h, and pressure range is 0.6MPa-1.2MPa, and temperature range is 180 ℃-250 ℃.
The Parameter Conditions of water is as follows in the spraying gun 1: the normal discharge scope is 0t/h-12t/h, and peak flow is 15t/h, and pressure range is 0.5MPa-3.5MPa, and temperature range is: 40 ℃-250 ℃.
Claims (3)
1. the delayed coking unit energy-saving technique of flow process that steams out greatly, comprise spraying gun and coke drum, it is characterized in that: water vapor transfers to the entrance of spraying gun (1) after Flow-rate adjustment, and the steam rates that enters spraying gun (1) is controlled according to the blending agent temperature of spraying gun (1) outlet and the liquid phase water flow that enters spraying gun (1); Liquid phase water transfers to another entrance of spraying gun (1) after Flow-rate adjustment, the liquid phase water flow that enters spraying gun (1) is controlled according to default flow and the pressure of coke drum (2) cat head; In spraying gun (1), the water vapor flow at high speed also is atomized into micron-sized drop state with liquid phase water, and the water of the micron-sized drop state after the atomizing transfers to coke drum (2) flow process that steams out greatly from the outlet of spraying gun (1).
2. a kind of delayed coking unit according to claim 1 energy-saving technique of flow process that steams out greatly, it is characterized in that: the Parameter Conditions of steam is as follows in the described spraying gun (1): the normal discharge scope is 0.3t/h-15t/h, pressure range is 0.6MPa-1.2MPa, and temperature range is 180 ℃-250 ℃.
3. a kind of delayed coking unit according to claim 1 energy-saving technique of flow process that steams out greatly, it is characterized in that: the Parameter Conditions of water is as follows in the described spraying gun (1): the normal discharge scope is 0t/h-12t/h, pressure range is 0.5MPa-3.5MPa, and temperature range is: 40 ℃-250 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110254588 CN102329633B (en) | 2011-08-31 | 2011-08-31 | Energy-saving process of steam mass blowing flow in delayed coking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110254588 CN102329633B (en) | 2011-08-31 | 2011-08-31 | Energy-saving process of steam mass blowing flow in delayed coking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102329633A CN102329633A (en) | 2012-01-25 |
| CN102329633B true CN102329633B (en) | 2013-09-18 |
Family
ID=45481604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110254588 Active CN102329633B (en) | 2011-08-31 | 2011-08-31 | Energy-saving process of steam mass blowing flow in delayed coking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102329633B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9828554B2 (en) | 2014-08-28 | 2017-11-28 | Exxonmobil Chemical Patent Inc. | Process and apparatus for decoking a hydocarbon steam cracking furnace |
| SG11201610863YA (en) * | 2014-08-28 | 2017-01-27 | Exxonmobil Chemical Patents Inc | Process and apparatus for decoking a hydrocarbon steam cracking furnace |
| CN106277677A (en) * | 2016-09-20 | 2017-01-04 | 上海优华系统集成技术股份有限公司 | A kind of mud combination treatment method and device |
| CN110144239A (en) * | 2019-06-27 | 2019-08-20 | 山东清沂山石化科技有限公司 | A kind of Coking Tower for Delayed Coking Unit is cold burnt to vapour treatment process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201145850Y (en) * | 2007-06-17 | 2008-11-05 | 袁志祥 | Automatic operation system for delayed coking coke chamber |
| CN201261761Y (en) * | 2009-01-21 | 2009-06-24 | 博爱新开源制药有限公司 | Special drying apparatus for polyvinyl pyrrolidon |
| CN101638585A (en) * | 2009-06-25 | 2010-02-03 | 中国石油化工集团公司 | Delayed coking method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5954949A (en) * | 1998-03-25 | 1999-09-21 | Unipure Corporation | Conversion of heavy petroleum oils to coke with a molten alkali metal hydroxide |
| US7037408B2 (en) * | 2002-12-18 | 2006-05-02 | Chevron U.S.A. Inc. | Safe and automatic method for preparation of coke for removal from a coke vessel |
-
2011
- 2011-08-31 CN CN 201110254588 patent/CN102329633B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201145850Y (en) * | 2007-06-17 | 2008-11-05 | 袁志祥 | Automatic operation system for delayed coking coke chamber |
| CN201261761Y (en) * | 2009-01-21 | 2009-06-24 | 博爱新开源制药有限公司 | Special drying apparatus for polyvinyl pyrrolidon |
| CN101638585A (en) * | 2009-06-25 | 2010-02-03 | 中国石油化工集团公司 | Delayed coking method |
Non-Patent Citations (1)
| Title |
|---|
| 郭崇志等.延迟焦化节能新工艺及对设备性能的影响.《华南理工大学学报（自然科学报）》.2003,第31卷(第4期),第28-31页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102329633A (en) | 2012-01-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102329633B (en) | Energy-saving process of steam mass blowing flow in delayed coking device | |
| CN103423739B (en) | A kind of Wear-resistance leak-proof slag blast cap with combination core pipe | |
| CN108264923A (en) | Delayed coking steams out blowdown system | |
| CN201488631U (en) | Horizontal water-tube primary cooler descaling device | |
| CN102519285B (en) | Integrated technique and special equipment for raw gas waste heat recovery and steam replacement with heat transfer soil | |
| CN106867547B (en) | Coke oven crude gas waste heat recovery system | |
| CN106839808B (en) | High-low temperature comprehensive recovery system and method for waste heat of raw gas | |
| CN103292378A (en) | Recovery method and device for boiler waste water and waste heat of heat supply network | |
| CN104946272B (en) | A kind of coal oven dithio-gas waste-heat recovery device and combination two stage heat taking method | |
| CN202988746U (en) | Tail gas shock cooling device of polycrystalline silicon reducing furnace and heating hydrogenation furnace | |
| CN204151071U (en) | A kind of high-temperature fusion sulphur porous jet apparatus | |
| CN217351259U (en) | Coke drum energy-saving device for delayed coking device | |
| CN204727849U (en) | The smart spraying technique of the flow process that steams out greatly in a kind of coker | |
| CN102746896B (en) | Heating method and device of hydrogenation feed | |
| CN102425976B (en) | Automatic temperature regulating method of high-temperature flue gas for metal heat exchanger | |
| CN204022848U (en) | A kind of low pressure lower wall tubular type flash distillation plant | |
| CN102078950A (en) | Intelligent heating system for centrifugally casting ultra-long thin-walled slim tubes | |
| CN208545354U (en) | A kind of coke dry quenching furnace air leading-in conduit of preheated air | |
| CN206018588U (en) | A kind of reducing-and-cooling plant that can change nozzle online | |
| CN206244730U (en) | Waste lubricant oil regeneration and production diesel device | |
| WO2015084780A1 (en) | Apparatus for decreasing smr tube temperature | |
| CN106196003B (en) | Temperature and pressure reducing device with online replaceable nozzle | |
| CN214654670U (en) | Delayed coking coke tower heat control device | |
| CN106147822A (en) | A kind of smart spraying technique of the flow process that steams out greatly in coking plant | |
| CN104531229A (en) | Chilling device and chilling method of high-temperature gas of gasifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200127 B, 9 floor, 2 building, 428 Yanggao South Road, Pudong New Area, Shanghai. Patentee after: SHANGHAI YOUHUA SYSTEM INTEGRATION TECHNOLOGY Co.,Ltd. Patentee after: GUANGZHOU YOUHUA PROCESS TECHNOLOGY Co.,Ltd. Address before: 200127 B, 9 floor, 2 building, 428 Yanggao South Road, Pudong New Area, Shanghai. Patentee before: SHANGHAI YOUHUA SYSTEM INTEGRATION TECHNOLOGY Co.,Ltd. Patentee before: Guangzhou Youhua Process Technology Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |