CN105778977B - A kind of ethane cracking furnace - Google Patents
A kind of ethane cracking furnace Download PDFInfo
- Publication number
- CN105778977B CN105778977B CN201610185249.3A CN201610185249A CN105778977B CN 105778977 B CN105778977 B CN 105778977B CN 201610185249 A CN201610185249 A CN 201610185249A CN 105778977 B CN105778977 B CN 105778977B
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- furnace
- black matrix
- corrugated plating
- matrix component
- blackbody element
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Classifications
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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
- C10G9/14—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils in pipes or coils with or without auxiliary means, e.g. digesters, soaking drums, expansion means
- C10G9/18—Apparatus
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C4/00—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms
- C07C4/02—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by cracking a single hydrocarbon or a mixture of individually defined hydrocarbons or a normally gaseous hydrocarbon fraction
- C07C4/04—Thermal processes
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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
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1037—Hydrocarbon fractions
- C10G2300/1044—Heavy gasoline or naphtha having a boiling range of about 100 - 180 °C
-
- 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
- C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
- C10G2400/20—C2-C4 olefins
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (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)
- Radiation Pyrometers (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention discloses a kind of ethane cracking furnace, multigroup black matrix component, the black matrix component normal direction face cracking tube are set on pyrolysis furnace radiant section furnace wall；The cavity Blackbody element of multiple close wrong rows is set on black matrix component；Corrugated plating is set on convection section in cracking furnace furnace wall, and the corrugated plating ripple direction is consistent with flow of flue gas direction；The ripple plate surface and Blackbody element surface and Blackbody element backplate surface are coated with high emissivity coating.The sealing enhancing of furnace lining of the present invention, strengthens the heat insulating effect of body of heater, reduces radiation loss, while increase the high temperature resistant of convection section in cracking furnace, decay resistance；By in pyrolysis furnace set energy saving component plus high emissivity coating can make pyrolysis furnace heat transfer area increase be twice the above, inboard wall of burner hearth blackness reaches more than 0.95, effectively make pyrolysis furnace thermal energy consumption save more than 5%.
Description
Technical field
The present invention relates to technical field of petrochemical industry, more particularly, to a kind of ethane cracking furnace.
Background technology
Petro chemical industry has very important status in national economy and social development, and ethylene industry is oil
" tap " of work, and frequently as the development level for weighing a national basic chemical industry.The energy consumption of ethylene unit is to weigh
The advanced important indicator of ethylene, and ethane cracking furnace is the energy consumption rich and influential family of ethylene unit, it is total that its energy consumption accounts for device
The 60%-80% of energy consumption.The energy consumption for reducing pyrolysis furnace is one of important channel for reducing production cost of ethylene.The energy consumption of pyrolysis furnace exists
It is heavily dependent on cracking furnace system design in itself and operation is horizontal, in recent years, pyrolysis furnace technology is to high temperature, short stop
Time, maximization and long running cycle direction are developed.By improving cracking selectivity, raising cracking furnace thermal efficiency, improving high temperature
Cracking gas heat recovery, extend the measures such as service cycle, decline Energy consumption of cracking furnace, but above method all has an investment
Greatly, the shortcomings that construction period is long.
Heat transfer conditions in ethane cracking furnace are as follows：It is mainly radiant heat transfer outside boiler tube, by boiler tube area and furnace lining face
Product control and heat transfer coefficient control, are mainly heat transfer in furnace wall, are determined by material, are mainly convection heat transfer' heat-transfer by convection in boiler tube, by
Heat transfer coefficient（Emissivity）Controlled with heat transfer area, and heat transfer area is determined by boiler tube configuration and furnace lining structure.Therefore, in boiler tube
When configuration determines, heat transfer can only be increased by changing heat transfer coefficient and increase furnace lining area.
The content of the invention
In order to overcome the defects of above-mentioned existing, it is an object of the invention to provide a kind of sealing increasing for improving furnace lining
By force, the heat insulating effect of body of heater is strengthened, reduces radiation loss, while increases the high temperature resistant, resistance to of convection section in cracking furnace
Corrosive nature, generally improve energy-saving efficiency and the ethane cracking furnace of thermal energy consumption.
In order to achieve the above object, the present invention is achieved through the following technical solutions：
The technical program is a kind of ethane cracking furnace, and multigroup black matrix component is set on pyrolysis furnace radiant section furnace wall, described black
Body component normal direction face cracking tube；The cavity Blackbody element of multiple close wrong rows is set on black matrix component；Pyrolysis furnace convection current
Corrugated plating is set on section furnace wall, the corrugated plating ripple direction is consistent with flow of flue gas direction；The ripple plate surface and black matrix
Element surface and Blackbody element backplate surface are coated with high emissivity coating；The high emissivity coating is by 15% adhesive, 15%
Zirconium silicate, 10% manganese dioxide, 10% di-iron trioxide, 40% carborundum and 10% rare earth material are prepared.
As optimization, the pyrolysis furnace radiant section liner is formed by light weight alumina insulation brick masonry, light weight alumina insulating brick
With the good heat insulating that compressive resistance is high, thermal conductivity factor is low and good, the energy-saving efficiency of pyrolysis furnace can be effectively improved；Pyrolysis furnace
Convection section liner is made up of refractory fibre, increases high temperature resistant, the decay resistance of convection section in cracking furnace.
As optimization, the black matrix component is fixed on pyrolysis furnace radiant section furnace wall by ceramic screw；Corrugated plating passes through
Ceramic screw is fixed on convection section in cracking furnace furnace wall.The installation fixed form of ceramic screw substantially increases efficiency of construction, contracting
The engineering time is subtracted.The installation of discrete component needs to drill on furnace wall, there is certain breakage, black matrix component and template to furnace lining
The installation of element reduces the quantity of drilling, due to the whole installation of black matrix component and plank model component on furnace lining, makes furnace lining
Sealing strengthens, and strengthens the heat insulating effect of body of heater, reduces radiation loss.
As optimization, the Blackbody element is made up of high-strength light mullite castable, and such material composition makes black
The refractoriness and compressive resistance of volume elements part are better than pyrolysis furnace radiant section inner lining material, effectively extend the service life of liner；Institute
State corrugated plating to be formed by high temperature fiber compacting, fiber corrugated plating strengthens the heat insulating effect of body of heater, reduces radiation loss.
As optimization, the Blackbody element is cylindrical cavity frustum, the cavity heat radiation principle of Blackbody element is entered one
Step enhancing, so as to improve the heat obtained in the boiler tube unit interval.
Compared with prior art, the beneficial effects of the invention are as follows：The sealing enhancing of furnace lining of the present invention, strengthens body of heater
Heat insulating effect, reduce radiation loss, while increase the high temperature resistant of convection section in cracking furnace, decay resistance；By
Set energy saving component to increase pyrolysis furnace heat transfer area plus high emissivity coating in pyrolysis furnace and be twice the above, inboard wall of burner hearth
Blackness reaches more than 0.95, pyrolysis furnace thermal energy consumption is saved more than 5%.
Brief description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
Fig. 1 is the main structure schematic diagram of the present invention.
Fig. 2 is the black matrix component and Blackbody element structural representation of the present invention.
Fig. 3 is the mounting structure schematic diagram of the black matrix component of the present invention.
Fig. 4 is the corrugated board structures schematic diagram of the present invention.
Marked in figure：Black matrix component 1, Blackbody element 2 and corrugated plating 3.
Embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment 1, as shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 4, the present invention is a kind of ethane cracking furnace, pyrolysis furnace radiant section
Multigroup black matrix component 1, the normal direction face cracking tube of black matrix component 1 are set on furnace wall；Set on black matrix component 1 multiple tight
The cavity Blackbody element 2 of close wrong row；Corrugated plating 3, the ripple direction of corrugated plating 3 and flue gas are set on convection section in cracking furnace furnace wall
Flow direction is consistent；The surface of corrugated plating 3 and the surface of Blackbody element 2 and the backplate surface of Blackbody element 2 are coated with high emissivity
Coating；The high emissivity coating is by 15% adhesive, 15% zirconium silicate, 10% manganese dioxide, 10% di-iron trioxide, 40% carbonization
Silicon and 10% rare earth material are prepared.
Black matrix component is set on pyrolysis furnace radiant section furnace wall, increases more than one times of pyrolysis furnace furnace lining heat transfer area, together
When the surface of Blackbody element 2 and backplate surface scribble high emissivity coating, increase the heat transfer coefficient of furnace lining, so as to enhance radiation
Heat transfer.In the convection section of pyrolysis furnace, corrugated plating (plank model component is set）, ripple plate surface scribbles high emissivity coating, and increase passes
Hot area and heat transfer coefficient, enhance radiant heat transfer.Each black matrix component 1 is made up of the close wrong row of 9 Blackbody elements 2, profit
Blackbody cavity heat radiation principle.Described Blackbody element 2 is cavity frustum, and blackbody cavity die cavity is than size L:R=3.5~
4.5.The plank model component of corrugated plating 3 is pressed into ripple type, the single long 50-60cm of plank model component, wide 25-30cm, ripple by high temperature fiber
Line height 6-8cm.The normal direction face cracking tube of black matrix component 1, plus the surface of corrugated plating 3 and the surface of Blackbody element 2 and black matrix
The backplate surface of element 2 is coated with high emissivity coating, forms the directional transmissions to infrared ray, makes to obtain more in the boiler tube unit interval
More heats.The ripple direction of corrugated plating 3 is consistent with flow of flue gas direction, gas stream in the stove will not be formed and adversely affected.
In the case where not changing cracking furnace body external structure, the present invention in pyrolysis furnace by setting energy saving component to add
Upper high emissivity coating can make pyrolysis furnace heat transfer area increase be twice the above, inboard wall of burner hearth blackness reaches more than 0.95, effectively
Pyrolysis furnace thermal energy consumption is set to save more than 5%.
Embodiment 2, the inner lining structure of pyrolysis furnace radiant section and convection section is optimized on the basis of embodiment 1 and set
Meter, the pyrolysis furnace radiant section liner are formed by light weight alumina insulation brick masonry, light weight alumina insulating brick have compressive resistance it is high,
The low and good good heat insulating of thermal conductivity factor, the energy-saving efficiency of pyrolysis furnace can be effectively improved.Convection section in cracking furnace liner is by resistance to
Fiery fiber is formed, and increases high temperature resistant, the decay resistance of convection section in cracking furnace.
Embodiment 3, design is optimized to the mounting means of black matrix component 1 and corrugated plating 3 on the basis of embodiment 2,
The black matrix component 1 is fixed on pyrolysis furnace radiant section furnace wall by ceramic screw；Corrugated plating 3 is fixed on by ceramic screw to be split
Solve on stove convection section furnace wall.The installation fixed form of ceramic screw substantially increases efficiency of construction, reduces the engineering time.It is single
The installation of element needs to drill on furnace wall, has certain breakage to furnace lining, the installation of black matrix component and plank model component reduces
The quantity of drilling, due to the whole installation of black matrix component and plank model component on furnace lining, make the sealing of furnace lining strengthen, strengthen
The heat insulating effect of body of heater, reduces radiation loss.
Embodiment 4, the material of Blackbody element 2 and corrugated plating 3 is optimized on the basis of embodiment 1 or embodiment 3
Design, the Blackbody element 2 are made up of high-strength light mullite castable, and such material, which is formed, makes the resistance to of Blackbody element 2
Fiery degree and compressive resistance are better than pyrolysis furnace radiant section inner lining material, effectively extend the service life of liner.The corrugated plating 3 by
High temperature fiber compacting is formed, and corrugated plating 3 is formed by high temperature fiber compacting, while fiber corrugated plating 3 also enhances the insulation of body of heater
Effect of heat insulation, reduce radiation loss.
Embodiment 5, design, the black matrix member are optimized to the planform of Blackbody element 2 on the basis of embodiment 4
Part 2 is cylindrical cavity frustum, further enhances the cavity heat radiation principle of Blackbody element 2, during so as to improve boiler tube unit
The heat of interior acquisition.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (4)
- A kind of 1. ethane cracking furnace, it is characterised in that：Multigroup black matrix component is set on pyrolysis furnace radiant section furnace wall（1）, it is described black Body component（1）Normal direction face cracking tube；Black matrix component（1）The upper cavity Blackbody element that multiple close wrong rows are set（2）；Split Corrugated plating is set on solution stove convection section furnace wall（3）, the corrugated plating（3）Ripple direction is consistent with flow of flue gas direction；The ripple Card（3）Surface and Blackbody element（2）Surface and Blackbody element（2）Backplate surface is coated with high emissivity coating；It is described occurred frequently Rate coating is penetrated by 15% adhesive, 15% zirconium silicate, 10% manganese dioxide, 10% di-iron trioxide, 40% carborundum and 10% rare earth material Material is prepared；The pyrolysis furnace radiant section liner is formed by light weight alumina insulation brick masonry；Convection section in cracking furnace liner is by resistance to Fiery fiber is formed.
- A kind of 2. ethane cracking furnace according to claim 1, it is characterised in that：The black matrix component（1）Pass through ceramic spiral shell Nail is fixed on pyrolysis furnace radiant section furnace wall；Corrugated plating（3）It is fixed on by ceramic screw on convection section in cracking furnace furnace wall.
- A kind of 3. ethane cracking furnace according to claim 1 or 2, it is characterised in that：The Blackbody element（2）By lightweight height Strong mullite castable is made；The corrugated plating（3）Formed by high temperature fiber compacting.
- A kind of 4. ethane cracking furnace according to claim 3, it is characterised in that：The Blackbody element（2）For cylindric sky Chamber frustum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610185249.3A CN105778977B (en) | 2016-03-29 | 2016-03-29 | A kind of ethane cracking furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610185249.3A CN105778977B (en) | 2016-03-29 | 2016-03-29 | A kind of ethane cracking furnace |
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| Publication Number | Publication Date |
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| CN105778977A CN105778977A (en) | 2016-07-20 |
| CN105778977B true CN105778977B (en) | 2018-01-09 |
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| CN201610185249.3A Active CN105778977B (en) | 2016-03-29 | 2016-03-29 | A kind of ethane cracking furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU217328U1 (en) * | 2020-11-12 | 2023-03-28 | Луян Энерджи-Сэйвинг Материалз Ко., Лтд. | ETHYLENE CRACKING FURNACE AND ITS COMPOSITE HEAT-INSULATING LINING |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081711A (en) * | 2019-04-22 | 2019-08-02 | 东北大学 | A kind of double circular table black body radiation energy saving components and its preparation, application method |
| CN214095520U (en) * | 2020-11-12 | 2021-08-31 | 山东鲁阳节能材料股份有限公司 | Ethylene cracking furnace and composite heat-insulating lining thereof |
| CN116769504B (en) * | 2022-03-10 | 2024-04-23 | 中国石化工程建设有限公司 | Anchoring nozzle for ethylene cracking furnace and anchoring method |
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| CN103090671A (en) * | 2013-01-14 | 2013-05-08 | 浙江西华节能技术有限公司 | Pipe type heating furnace and energy saving method thereof |
| CN103954131A (en) * | 2014-04-17 | 2014-07-30 | 四川科达节能技术有限公司 | Inner liner material for industrial kiln furnace |
| CN104031439A (en) * | 2014-06-30 | 2014-09-10 | 北斗启明（北京）节能科技服务有限公司 | High temperature resistant nano black body coating and preparation process thereof |
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- 2016-03-29 CN CN201610185249.3A patent/CN105778977B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202382573U (en) * | 2011-07-14 | 2012-08-15 | 北京西华蓝天节能技术有限公司 | Cellular-type semi-enclosed cavity fire-resistant prefabricated member |
| CN103063033A (en) * | 2012-12-29 | 2013-04-24 | 浙江西华节能技术有限公司 | Energy-saving kiln and energy-saving method |
| CN103090671A (en) * | 2013-01-14 | 2013-05-08 | 浙江西华节能技术有限公司 | Pipe type heating furnace and energy saving method thereof |
| CN103954131A (en) * | 2014-04-17 | 2014-07-30 | 四川科达节能技术有限公司 | Inner liner material for industrial kiln furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU217328U1 (en) * | 2020-11-12 | 2023-03-28 | Луян Энерджи-Сэйвинг Материалз Ко., Лтд. | ETHYLENE CRACKING FURNACE AND ITS COMPOSITE HEAT-INSULATING LINING |
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| CN105778977A (en) | 2016-07-20 |
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