CN101644480B - Tubular double-square heating furnace - Google Patents
Tubular double-square heating furnace Download PDFInfo
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- CN101644480B CN101644480B CN2009100652470A CN200910065247A CN101644480B CN 101644480 B CN101644480 B CN 101644480B CN 2009100652470 A CN2009100652470 A CN 2009100652470A CN 200910065247 A CN200910065247 A CN 200910065247A CN 101644480 B CN101644480 B CN 101644480B
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- furnace
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- burner
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 31
- 230000005855 radiation Effects 0.000 claims abstract description 27
- 239000011449 brick Substances 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 8
- 239000010959 steel Substances 0.000 abstract description 8
- 230000007423 decrease Effects 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000003546 flue gas Substances 0.000 description 10
- 239000003921 oil Substances 0.000 description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 9
- 238000012546 transfer Methods 0.000 description 8
- 238000005292 vacuum distillation Methods 0.000 description 8
- 238000007670 refining Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000011796 hollow space material Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 3
- 239000010779 crude oil Substances 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 206010022000 influenza Diseases 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a tubular double-square heating furnace comprising burners (6), an inner wall plate (8) with an inner liner (7), an outer wall plate (2) with an outer liner (3), inner upright posts and outer upright posts (9). An integral double-square radiation chamber is formed by the inner wall plate (8) and the outer wall plate (2); in the middle of the radiation chamber, a square hollow chamber (II) structure is formed by the inner wall plate (8), and a square peripheral structure of the radiation chamber is formed by the outer wall plate (2); hearths (I) are arranged between theinner wall plate (8) and the outer wall plate (2); furnace tubes (4) are symmetrically arranged likewise in each hearth (I) so that each hearth (I) has the same block wall area; and the burners (6) are uniformly and respectively distributed in the middles of the furnace tubes of each hearth (I) and mounted at the furnace bottom which is provided with an air duct. The invention reduces the floor area of the device, lightens the pressure of steel structures, decreases the consumption of steel sheets and achieves the aims of saving energy and reducing emission.
Description
Technical field
The invention belongs to a kind of petrochemical enterprise heating furnace type of furnace, be particularly related to a kind of tubular double-square heating furnace, it is a kind of at large-scale oil refining apparatus, is specially adapted to treating capacity at 1,500 ten thousand tons of atmospheric and vacuum distillation unit and bigger devices of other treating capacity more than every year.
Background technology
Radiation furnace is applicable to the oil refining apparatus of high throughput, and it is the usual means of the heating type of furnace, is used for the heating of crude oil, also is the procedure that crude oil processing is handled, and is used for atmospheric and vacuum distillation unit etc.
2009,1,200 ten thousand tons of/year oil refining apparatus of Huizhou great oil refining of CNOOC project were gone into operation, and the oil refining apparatus of China is to surpassing ten million ton of scale development.Single covering device reaches that 1,500 ten thousand tons/year device is domestic sets up the project.In the near future, 1,500 ten thousand tons of/year oil refining apparatus will appear in China.
This shows heating furnace forward large scale development.At present, domestic atmospheric and vacuum distillation unit treating capacity mostly is millions of ton/years greatly, recent years newly-built 1,000 ten thousand tons of/year devices of several covers, still do not have 1,500 ten thousand tons/year and the above type of furnace.Because for the treatment of capacity is little, normal decompression heating furnace is in the past adopted standpipe (or lying pipe) stove near furnace wall four limit stringings more.And the big heating furnace for the treatment of capacity is adopted in such a way with a large amount of increase investment and occupation of land again.Therefore, the refinery uses large-scale atmospheric and vacuum distillation unit, says that from technology first problem that runs into is that device maximizes, and addressing this problem is the basic assurance of engineering design smooth implementation.
For the design of large-scale plant, useful many skinny devices of its basic ideas make up and directly design two kinds of thinkings of main equipment.Be combined into large-scale plant with many skinny devices, its designing technique mature and reliable, each Chevron Research Company (CRC), designing institute adopt a plurality of radiation chambers-merging convection cell type of furnace more, be equivalent to several heating all-radiant furnaces are placed on one relatively closely in the space, relatively independent or the type of furnace is long and narrow between the general radiation chamber, this type of type of furnace floor space is big, it is many to expend steel.Though its flexible operation takes up an area of greatly, the equipment control complexity, radiation loss is big, operation operating cost height, investment is big and gross efficiency is low.
Summary of the invention
The purpose of this invention is to provide a kind of " returning " type heating furnace, the purpose that it can reduce the plant area area, alleviate the pressure and the rolled steel dosage of steel construction and can reach energy-saving and emission-reduction.
Purpose of the present invention can realize with adopting following technical scheme: described heating furnace comprises inside panel in burner, the belt material and the exterior panel in the belt material, constitute integral body by inside panel and exterior panel and " return " the shape radiation chamber, the radiation chamber middle part forms square hollow structure by inside panel, form the rectangular periphery structure of radiation chamber by exterior panel, between inside panel and exterior panel, be provided with burner hearth; Each inner of the boiler chamber pipe is arranged identical symmetry, makes each burner hearth have identical brick wall area; Burner is distributed in burner hearth boiler tube middle part, is installed at the bottom of the all-radiant furnace; Radiation chamber is provided with the air channel.
Be provided with eight burner hearths between described inside panel and the exterior panel, the cross section of each burner hearth is a square.
Described " returning " type heating furnace has inner column and outer column, and inside panel is arranged on the inner column, and exterior panel is arranged on the outer column.
Described " returning " type heating furnace tube is arranged to vertical, connects with elbow between each pipe, and boiler tube is fixed by suspension hook and drag hook
The square length of side of each burner hearth of the present invention is determined by the convection cell width.Full stove weight all vertically imports into and lands on the column, steel construction is stressed evenly, has overcome the drawback that Large-scale Heater top weight will be assigned to side column through the furnace roof truss.Convection current tube sheet number minimizes, and only needs two high alloy tube sheets in the longitudinal direction.It makes convection cell obtain desirable flue gas flow rate, and radiation chamber has also obtained desirable gas radiation length and heat transfer parameter.Though hollow space has been wasted certain occupation of land, has obtained structure optimization, also guaranteed to see the flame of whole radiating furnace tubes and burner from peephole.The furnace wall of hollow space to the balanced contribution of the heat transfer of eight burner hearths greatly simultaneously.Hollow space also makes the support of radiating furnace tube greatly simplify, and generally speaking, full furnace structure is very compact, and heat transfer property is good, takes up an area of in visible scheme minimum.
In sum, the tubular double-square heating furnace type of furnace of the present invention is done squarely hollow with heating furnace radiation chamber integral body and " is returned " font (or burner hearth is the setting of " well " font), but convection cell can also can land according to the field condition top set, and the hot flue gas of centralized collection enters and carries out waste heat recovery in the air preheater then; Hot flue gas will be heated by the cold air that air blast is sent into through air preheater, and the hot-air of generation offers end burning burner and uses, and last cold flue gas is introduced chimney through air-introduced machine.
When the present invention was used for atmospheric and vacuum distillation unit, under the identical situation for the treatment of capacity, the floor space of this type of furnace was 1/2 of the conventional type of furnace.When being used for atmospheric and vacuum distillation unit, treating capacity is under 2,000 ten thousand tons of annual situations, and conventional type of furnace floor space is about 90 * 47m, and this type of furnace is taken up an area of and is about 65 * 23m.And the more common square type of furnace of this type of furnace rolled steel dosage reduces about 1/4.Type of furnace overall compact, thermal loss also will reduce synchronously.Simultaneously, but the convection cell top set is also saved very big occupation of land.Flue gas desulfur device is kept in the place that saves.
Heating furnace of the present invention adopts " returning " type standpipe vertical structure, adopts the major advantage of the heating type of furnace of this structure as follows: to take up an area of little; Gross investment is low; The cigarette ducting system is simple; The operation operating cost is low; Convection cell conducts heat and can be strengthened; Pressure-reducing line for oil-transferring can directly be supported on the body of heater, is convenient to absorb the thermal expansion of oil transfer line; The furnace roof space can utilize the degree height, is convenient to process pipelines and arranges.
The type of furnace of the present invention has bigger operating flexibility and operability, and for heating furnace, the distance at the burner of identical energy and boiler tube center is unusual important parameters.There is bigger distance at burner and boiler tube center, and then the tube wall calorific intensity is tending towards even.This can not embody in the Calculation of Heat Transfer of calculating heating furnace with uncle sieve one Yi Wansifa.But it is the key factor of furnace operation elasticity and security really.The distance of this programme burner center and boiler tube center line has prevented that effectively the bottom boiler tube is subjected to flame to influence the local overheating of generation more than 2m.Simultaneously because the heat of the every journey pipe of heating is provided the heat supply that can adjust a certain tube side by adjustment flame in operation like this by two burners.Adjustment process is very little to the heat supply influence of another tube side simultaneously, all other tube side heat supply is compared with every burner to have operability more flexibly.Because the build of this heating furnace is better, the high-altitude load vertically imports ground into, and the sectional shape heating furnace of loading on an equal basis is low, and full stove adopts slab and girder, and is handsome in appearance, helps the setting of furnace wall aperture of door and other equipment simultaneously.Platform and steel construction do not have the setting of repetition beam.Overall structure adopts the structure best techniques, coordinates each beam and column internal force, makes it balanced.The overall structure economical rationality, handsome in appearance.
Description of drawings
Accompanying drawing 1 is a structural representation of the present invention.
The A-A cutaway view of accompanying drawing 2 Fig. 1.
Accompanying drawing 3 is the present invention's examples (the atmospheric pressure kiln vacuum furnace type of furnace is identical) when being applied to atmospheric and vacuum distillation unit.
Among the figure: 1, outer column, 2, exterior panel, 3, outer lining, 4, boiler tube, 5, elbow, 6, burner, 7, inside liner, 8, inside panel, 9, inner column, 10, the air channel, 11, ladder, 12, flue collector, 13, convection cell, 14, oil transfer line, 15, secondary flue, 16, radiation chamber.I, burner hearth, II, hollow chamber.
The specific embodiment
In conjunction with the accompanying drawings, specific embodiments of the invention are described.
Shown in accompanying drawing 1,2: described heating furnace comprises the inside panel 8 of burner 6, band inside liner 7 and the exterior panel 2 of the outer lining 3 of band, constitute integral body by inside panel 8 and exterior panel 2 and " return " shape radiation chamber 16 (or burner hearth is the setting of " well " font), radiation chamber 16 middle parts form square hollow chamber II structure by inside panel, form the rectangular periphery structure of radiation chamber by exterior panel, be provided with eight burner hearth I between inside panel and exterior panel, the cross section of each burner hearth I is square burner hearth; Boiler tube 4 be a vertical structure in each burner hearth I, connects with 180 ° of elbows 5 between each pipe, can use also multitube journey of single tube journey, and employing suspension hook and drag hook are fixed, and the identical symmetry of boiler tube 4 arrangements makes each burner hearth have identical brick wall area; Burner is distributed in burner hearth boiler tube middle part, is installed on furnace bottom, and air channel 10 is set at the bottom of the all-radiant furnace.Described heating furnace has inner column 9 and outer column 1, and inside panel 8 is arranged on the inner column 9, and exterior panel is arranged on the outer column 1.The furnace bottom air channel provides burner 6 burnings required hot-air.Hot-air derives from residual neat recovering system.
Accompanying drawing 3 is applied to the example of atmospheric and vacuum distillation unit for the present invention.Convection section comprises convection calandria section and gas collection section.When the convection section top set was provided with, the gas collection section was collected flue gas respectively to plenum chamber by eight secondary flues 15 from radiation chamber 16 furnace roofs, and plenum chamber is positioned at the convection section hypomere, entered convection cell 13 behind the fume centralized and carried out heat exchange, entered flue collector then.Convection section lands when being provided with, and guides to the convection cell that lands on ground behind the available flue collector 12 collection flue gases.Convection coil is connected by oil transfer line 14 with radiating furnace tube.Be provided with ladder 11 at the radiation chamber sidepiece.
Its workflow: medium is entered by convection cell 13 top convection coil inlets, after oil transfer line 14 is gone into radiation chamber 16, by radiation furnace roof flows out collection behind the heat that the absorption burner produces in radiation chamber boiler tube 4 with hot flue gas heat exchange, enters destilling tower then.
The flue gas that burner produces in the radiation chamber 16 is collected by 8 secondary flues 15 of furnace roof and is entered plenum chamber, flue gas then enters convection cell and convection coil heat exchange after mixing, drain into residual neat recovering system through flue collector 12 then and carry out waste heat recovery, discharge via chimney at last.
The hot-air that residual neat recovering system obtains advanced hot-flow flue and reached furnace bottom air channel 10, used for stove burner 6.Normal decompression can be carried out the associating waste heat recovery.
The present invention only discloses a kind of representative instance, but the present invention is intended to comprise that all belong to all changes and the improvement of the example in this design and the scope of the invention.
Claims (4)
1. tubular double-square heating furnace, it is characterized in that: described heating furnace comprises the inside panel (8) of burner (6), band inside liner (7) and exterior panel (2), inner column, the outer column (9) of the outer lining of band (3), constitute whole " returning " shape radiation chamber by inside panel (8) and exterior panel (2), the radiation chamber middle part forms square hollow chamber (II) structure by inside panel (8), form the rectangular periphery structure of radiation chamber by exterior panel (2), between inside panel (8) and exterior panel (2), be provided with burner hearth (I); Boiler tube (4) in each burner hearth (I) is arranged identical symmetry, makes each burner hearth have identical brick wall area; Burner (6) is distributed in burner hearth boiler tube middle part, is installed on furnace bottom; Furnace bottom is provided with the air channel.
2. tubular double-square heating furnace according to claim 1 is characterized in that: be provided with eight burner hearths (I) between described inside panel (8) and the exterior panel (2), the cross section of each burner hearth (I) is a square.
3. according to the described tubular double-square heating furnace of described claim 1, it is characterized in that: described inside panel (8) is arranged on the inner column (1), and exterior panel is arranged on the outer column (9).
4. according to the described tubular double-square heating furnace of described claim 1, it is characterized in that: described boiler tube (4) is arranged to vertical, and boiler tube (4) is single tube journey or multitube journey, connects with elbow between each pipe, and boiler tube is fixed by suspension hook and drag hook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100652470A CN101644480B (en) | 2009-06-23 | 2009-06-23 | Tubular double-square heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100652470A CN101644480B (en) | 2009-06-23 | 2009-06-23 | Tubular double-square heating furnace |
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| Publication Number | Publication Date |
|---|---|
| CN101644480A CN101644480A (en) | 2010-02-10 |
| CN101644480B true CN101644480B (en) | 2011-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100652470A Active CN101644480B (en) | 2009-06-23 | 2009-06-23 | Tubular double-square heating furnace |
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| CN (1) | CN101644480B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103965944A (en) * | 2014-05-04 | 2014-08-06 | 何巨堂 | Heating furnace for wide-cut hydrocarbon material rich in colloidal asphalt components |
| CN108356520B (en) * | 2018-04-09 | 2020-04-07 | 宁波连通设备集团有限公司 | Manufacturing process of normal pressure heating furnace and normal pressure heating furnace manufactured by same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2625731Y (en) * | 2003-04-30 | 2004-07-14 | 董国民 | Waste heat recovery type molded coal boiler |
| WO2007088458A1 (en) * | 2006-01-31 | 2007-08-09 | Tenova S.P.A. | Flat- flame vault burner with low polluting emissions |
| CN101196308A (en) * | 2007-12-20 | 2008-06-11 | 姜亦迎 | Air thermalization gas burner |
| CN201434496Y (en) * | 2009-06-23 | 2010-03-31 | 河南方圆工业炉设计制造有限公司 | Tube-type square annular heating furnace |
-
2009
- 2009-06-23 CN CN2009100652470A patent/CN101644480B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2625731Y (en) * | 2003-04-30 | 2004-07-14 | 董国民 | Waste heat recovery type molded coal boiler |
| WO2007088458A1 (en) * | 2006-01-31 | 2007-08-09 | Tenova S.P.A. | Flat- flame vault burner with low polluting emissions |
| CN101196308A (en) * | 2007-12-20 | 2008-06-11 | 姜亦迎 | Air thermalization gas burner |
| CN201434496Y (en) * | 2009-06-23 | 2010-03-31 | 河南方圆工业炉设计制造有限公司 | Tube-type square annular heating furnace |
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| Publication number | Publication date |
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| CN101644480A (en) | 2010-02-10 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Tubular double-square heating furnace Effective date of registration: 20190412 Granted publication date: 20111214 Pledgee: Bank of China, Limited by Share Ltd, Luoyang branch Pledgor: Henan Fangyuan Industry Furnace Design Manufacture Co., Ltd. Registration number: 2019410000010 |
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Date of cancellation: 20200427 Granted publication date: 20111214 Pledgee: Bank of China, Limited by Share Ltd, Luoyang branch Pledgor: HENAN FANGYUAN INDUSTRIAL FURNACE DESIGN AND MANUFACTURING Co.,Ltd. Registration number: 2019410000010 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Tubular double-square heating furnace Effective date of registration: 20200427 Granted publication date: 20111214 Pledgee: Bank of China, Limited by Share Ltd, Luoyang branch Pledgor: HENAN FANGYUAN INDUSTRIAL FURNACE DESIGN AND MANUFACTURING Co.,Ltd. Registration number: Y2020980001836 |
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Date of cancellation: 20210415 Granted publication date: 20111214 Pledgee: Bank of China Limited by Share Ltd. Luoyang branch Pledgor: HENAN FANGYUAN INDUSTRIAL FURNACE DESIGN AND MANUFACTURING Co.,Ltd. Registration number: Y2020980001836 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
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Denomination of invention: Tubular "return" furnace Effective date of registration: 20210419 Granted publication date: 20111214 Pledgee: Bank of China Limited by Share Ltd. Luoyang branch Pledgor: HENAN FANGYUAN INDUSTRIAL FURNACE DESIGN AND MANUFACTURING Co.,Ltd. Registration number: Y2021980002770 |
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Date of cancellation: 20220608 Granted publication date: 20111214 Pledgee: Bank of China Limited by Share Ltd. Luoyang branch Pledgor: HENAN FANGYUAN INDUSTRIAL FURNACE DESIGN AND MANUFACTURING CO.,LTD. Registration number: Y2021980002770 |
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