CN105782960A - Circulating bed heat-conducting oil boiler with dense phase zone with anti-abrasion structures - Google Patents
Circulating bed heat-conducting oil boiler with dense phase zone with anti-abrasion structures Download PDFInfo
- Publication number
- CN105782960A CN105782960A CN201610304894.2A CN201610304894A CN105782960A CN 105782960 A CN105782960 A CN 105782960A CN 201610304894 A CN201610304894 A CN 201610304894A CN 105782960 A CN105782960 A CN 105782960A
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- CN
- China
- Prior art keywords
- abrasion
- proof structure
- conducting oil
- oil boiler
- emulsion zone
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
- F24H7/007—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release using solid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C2206/00—Fluidised bed combustion
- F23C2206/10—Circulating fluidised bed
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The invention relates to a circulating bed heat-conducting oil boiler with a dense phase zone with anti-abrasion structures. A heat insulation structure comprises straight sections and inclined sections, wherein the height of each straight section is H1; the height of each inclined section is H2; the average table speed of the dense phase zone is omega; (H1+H2)/omega is smaller than (0.5-2.0)s; the anti-abrasion structures are paved on the fireside surfaces of 1-5 rows of coil pipes at the lower parts of horizontal coil pipes and on the inner walls of the heat insulation structure respectively and are divided into anti-abrasion structure upper sections, anti-abrasion structure middle sections and anti-abrasion structure lower sections respectively; an inclination angle of each anti-abrasion structure supper section is beta; an inclination angle of each anti-abrasion structure middle section is alpha; alpha is larger than beta; the thickness of the lower end of each anti-abrasion structure upper section is delta 1; the thickness of the upper end of each anti-abrasion structure upper section is delta 2; the thickness of each anti-abrasion structure middle section is delta 0; and delta 1 is equal to (3/4-2/3) delta 0 and is larger than or equal to 2x delta 2. The circulating bed heat-conducting oil boiler has many advantages that a flow direction of flue gas can be changed, the horizontal coil pipes are prevented from being scratched by particles in the flue gas, the particles can better drop, the structure is simple and the like.
Description
Technical field
The present invention relates to circulation fluidized bed heat conducting oil boiler technical field, particularly relate to a kind of emulsion zone band abrasionproof knot
The circulation fluidized bed heat conducting oil boiler of structure.
Background technology
Combustion technology of circulating fluidized is nearly New combustion technique developed rapidly for twenties years.Its tool
There is fuel tolerance good, the inferior fuel such as burning house refuse, spoil, slag, de-in stove can be used
Sulfur, the plurality of advantages such as nitrogen oxide emission is low, are the type of furnaces the most with fastest developing speed.Along with ciculation fluidized
The development of bed boiler technology, CFBC low heat value, the advantage of high-ash fuel obtain abundant body
Existing, it is increasingly becoming the main flow type of furnace of low calorie fuels.Granule after flue gas carries burning secretly in combustion
Thing flows up, and through horizontal coil pipe, horizontal coil pipe is easily scratched by particulate matter, needs after broken pipe
Blowing out is keeped in repair, and affects work efficiency, and maintenance cost is higher, and particulate matter is easily deposited in emulsion zone and dilute phase
Junction, district and its inwall, affect the continuous maneuverability of boiler, process cumbersome shortcomings of Denging.
Summary of the invention
For weak point present in the problems referred to above, the present invention provides a kind of emulsion zone band abrasion-proof structure
Circulation fluidized bed heat conducting oil boiler.
For achieving the above object, the present invention provides the circulation fluidized bed heat conduction oil boiler of a kind of emulsion zone band abrasion-proof structure
Stove, including: emulsion zone, it is provided with dilute-phase zone on described emulsion zone top；
Described dilute-phase zone inwall is provided with the horizontal coil pipe of multiple superposition, is provided with in the outside of described horizontal coil pipe
Heat-insulation layer；
Described emulsion zone is heat insulating construction；
Described heat insulating construction includes straight section and tilting section；
The height of described straight section is H1, and the height of described tilting section is H2, the average bed of described emulsion zone
Speed is ω；
(H1+H2)/ω < (0.5～2.0) second；
Abrasion-proof structure is laid in described horizontal coil pipe bottom 1-5 row's coil pipe side towards the fire and described heat insulating construction
Wall；
Described abrasion-proof structure is divided into abrasion-proof structure epimere, abrasion-proof structure stage casing and abrasion-proof structure hypomere；
The angle of inclination of described abrasion-proof structure epimere is β, and the angle of inclination in described abrasion-proof structure stage casing is α；
α>β；
Described abrasion-proof structure epimere lower end thickness is δ 1, and described abrasion-proof structure epimere upper end thickness is δ 2,
Described abrasion-proof structure stage casing thickness is δ 0；
δ 1=(3/4～2/3) δ 0, δ 1 >=2 δ 2.
Improving further as the present invention, described horizontal coil pipe is fixed by positioning device at described dilute-phase zone
Inwall, the thickness of described positioner is L1, a diameter of d of described horizontal coil pipe；
L1=(1.05～1.2) d；
Described horizontal coil pipe and described external thermal insulation thickness are L2；
L2=L1+ △ L, △ L=(10～200) mm.
Improving further as the present invention, described abrasion-proof structure epimere is the most outward-dipping shape.
Improving further as the present invention, described abrasion-proof structure stage casing is the most outward-dipping shape.
Improve further as the present invention, described tilting section and described abrasion-proof structure stage casing cant angle degree phase
With.
Improving further as the present invention, described emulsion zone and described dilute-phase zone are structure as a whole in infundibulate
Shape.
Improving further as the present invention, described abrasion-proof structure inwall is shiny surface.
Improve further as the present invention, described abrasion-proof structure stage casing and described abrasion-proof structure hypomere thickness phase
With.
The invention have the benefit that by arranging coil pipe at the horizontal coil pipe bottom 1-5 that is laid in by abrasion-proof structure
Side towards the fire and heat insulating construction inwall, this abrasion-proof structure is divided into abrasion-proof structure epimere, abrasion-proof structure stage casing with anti-
Mill structure hypomere；Abrasion-proof structure epimere and abrasion-proof structure stage casing are equipped with angle of inclination, abrasion-proof structure stage casing
Angle of inclination more than the angle of inclination of abrasion-proof structure epimere, abrasion-proof structure epimere thickness is gradually reduced, anti-
Mill structure stage casing thickness, more than abrasion-proof structure epimere thickness, can change the flow direction of flue gas, it is to avoid in flue gas
Particulate matter scratches horizontal coil pipe, the plurality of advantages such as particulate matter can preferably fall, its simple in construction.
Accompanying drawing explanation
Fig. 1 is the sectional view of the circulation fluidized bed heat conducting oil boiler of the present invention a kind of emulsion zone band abrasion-proof structure；
Fig. 2 is the enlarged drawing in figure at I.
In figure: 1, heat-insulation layer；2, horizontal coil pipe；3, abrasion-proof structure；4, emulsion zone；5, location dress
Put.
Detailed description of the invention
As shown in Figure 1-2, the circulation fluidized bed heat conduction oil boiler of a kind of emulsion zone band abrasion-proof structure of the embodiment of the present invention
Stove, including: emulsion zone 4, it is provided with dilute-phase zone on emulsion zone 4 top；Dilute-phase zone inwall is provided with multiple superposition
Horizontal coil pipe 2, be provided with heat-insulation layer 1 in the outside of horizontal coil pipe 2.Emulsion zone 4 is heat insulating construction；Absolutely
Heat structure includes straight section and tilting section；The height of straight section is H1, and the height of tilting section is H2, emulsion zone 4
Average bed speed be ω；(H1+H2)/ω < (0.5～2.0) second.Abrasion-proof structure 3 is laid in horizontal coil pipe 2 times
Portion 1-5 row's coil pipe side towards the fire and heat insulating construction inwall, abrasion-proof structure 3 is divided into abrasion-proof structure epimere, abrasionproof to tie
Structure stage casing and abrasion-proof structure hypomere, the angle of inclination of abrasion-proof structure epimere is β, inclining of abrasion-proof structure stage casing
Rake angle is α；α>β.Abrasion-proof structure epimere lower end thickness is δ 1, abrasion-proof structure epimere upper end thickness
For δ 2, abrasion-proof structure stage casing thickness is δ 0；δ 1=3/4～2/3 δ 0, δ 1 >=2 δ 2.Horizontal coil pipe 2
Be fixed on the inwall of dilute-phase zone by positioner 5, the thickness of positioner 5 is L1, horizontal coil pipe 2
A diameter of d；L1=1.05～1.2d；Horizontal coil pipe 2 and external thermal insulation 1 thickness are L2；L2=L1+ △
L, △ L=10～200mm.Abrasion-proof structure epimere is the most outward-dipping shape, abrasion-proof structure stage casing be by
The most outward-dipping shape, tilting section is identical with abrasion-proof structure stage casing cant angle degree.Emulsion zone 4 and dilute phase
District is structure as a whole in funnel shaped, and abrasion-proof structure 3 inwall is shiny surface, abrasion-proof structure stage casing and abrasionproof
Structure hypomere thickness is identical.
Time specifically used: the cigarette of entrained particulate flows up, during flowing, particulate matter is from trend
Under fall, abrasion-proof structure level of protection coil pipe avoid it to scratch, abrasion-proof structure epimere and stage casing are in outwards
Tilted shape, particulate matter is in the downward landing in its surface, it is to avoid particle packing is on surface.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for this
For the technical staff in field, the present invention can have various modifications and variations.All spirit in the present invention and
Within principle, any modification, equivalent substitution and improvement etc. made, should be included in the protection of the present invention
Within the scope of.
Claims (8)
1. the circulation fluidized bed heat conducting oil boiler of an emulsion zone band abrasion-proof structure, it is characterised in that including: close
Phase region (4), is provided with dilute-phase zone on described emulsion zone (4) top；
Described dilute-phase zone inwall is provided with the horizontal coil pipe (2) of multiple superposition, in described horizontal coil pipe (2)
Outside is provided with heat-insulation layer (1)；
Described emulsion zone (4) is heat insulating construction；
Described heat insulating construction includes straight section and tilting section；
The height of described straight section is H1, and the height of described tilting section is H2, putting down of described emulsion zone (4)
All bed speed is ω；
(H1+H2)/ω < (0.5～2.0) second；
Abrasion-proof structure (3) be laid in described horizontal coil pipe (2) bottom 1-5 row coil pipe side towards the fire and described absolutely
Heat structure inwall；
Described abrasion-proof structure (3) is divided into abrasion-proof structure epimere, abrasion-proof structure stage casing and abrasion-proof structure hypomere；
The angle of inclination of described abrasion-proof structure epimere is β, and the angle of inclination in described abrasion-proof structure stage casing is α；
α>β；
Described abrasion-proof structure epimere lower end thickness is δ 1, and described abrasion-proof structure epimere upper end thickness is δ 2,
Described abrasion-proof structure stage casing thickness is δ 0；
δ 1=(3/4～2/3) δ 0, δ 1 >=2 δ 2.
The circulation fluidized bed heat conducting oil boiler of emulsion zone band abrasion-proof structure the most according to claim 1, it is special
Levy and be: described horizontal coil pipe (2) is fixed on the inwall of described dilute-phase zone by positioner (5),
The thickness of described positioner (5) is L1, a diameter of d of described horizontal coil pipe (2)；
L1=(1.05～1.2) d；
Described horizontal coil pipe (2) and described external thermal insulation (1) thickness are L2；
L2=L1+ △ L, △ L=(10～200) mm.
The circulation fluidized bed heat conducting oil boiler of emulsion zone band abrasion-proof structure the most according to claim 1, it is special
Levy and be: described abrasion-proof structure epimere is the most outward-dipping shape.
The circulation fluidized bed heat conducting oil boiler of emulsion zone band abrasion-proof structure the most according to claim 1, it is special
Levy and be: described abrasion-proof structure stage casing is the most outward-dipping shape.
The circulation fluidized bed heat conducting oil boiler of emulsion zone band abrasion-proof structure the most according to claim 4, it is special
Levy and be: described tilting section is identical with described abrasion-proof structure stage casing cant angle degree.
The circulation fluidized bed heat conducting oil boiler of emulsion zone band abrasion-proof structure the most according to claim 1, it is special
Levy and be: described emulsion zone (4) and described dilute-phase zone are structure as a whole in funnel shaped.
The circulation fluidized bed heat conducting oil boiler of emulsion zone band abrasion-proof structure the most according to claim 1, it is special
Levy and be: described abrasion-proof structure (3) inwall is shiny surface.
The circulation fluidized bed heat conducting oil boiler of emulsion zone band abrasion-proof structure the most according to claim 1, it is special
Levy and be: described abrasion-proof structure stage casing is identical with described abrasion-proof structure hypomere thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610304894.2A CN105782960B (en) | 2016-05-10 | 2016-05-10 | A kind of circulation fluidized bed heat conducting oil boiler of emulsion zone with abrasion-proof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610304894.2A CN105782960B (en) | 2016-05-10 | 2016-05-10 | A kind of circulation fluidized bed heat conducting oil boiler of emulsion zone with abrasion-proof structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105782960A true CN105782960A (en) | 2016-07-20 |
| CN105782960B CN105782960B (en) | 2017-08-25 |
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|---|---|---|---|
| CN201610304894.2A Active CN105782960B (en) | 2016-05-10 | 2016-05-10 | A kind of circulation fluidized bed heat conducting oil boiler of emulsion zone with abrasion-proof structure |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001289569A (en) * | 2000-03-31 | 2001-10-19 | Asahi Tec Corp | Wearproof device for inner wall face of fluidized bed furnace |
| CN200968600Y (en) * | 2006-11-09 | 2007-10-31 | 上海锅炉厂有限公司 | Fluidized-bed boiler furnace transition region anti-wear structure |
| CN201203106Y (en) * | 2007-12-24 | 2009-03-04 | 上海锅炉厂有限公司 | Anti-wear structure of water-cooled wall joint of fluidized bed boiler furnace |
| CN101655233A (en) * | 2009-08-28 | 2010-02-24 | 无锡海源重工股份有限公司 | Abrasion-proof structure for dense phase region and dilute phase transitional region of boiler furnace of circulating fluid bed |
| CN201944829U (en) * | 2011-01-17 | 2011-08-24 | 四川省金路树脂有限公司 | Wearing-preventing device for transition zone of fluidized bed boiler |
| CN103712205A (en) * | 2014-01-10 | 2014-04-09 | 哈尔滨红光锅炉总厂有限责任公司 | Circulating fluidized bed hot-water boiler free of abrasion and corrosion |
| CN205782873U (en) * | 2016-05-10 | 2016-12-07 | 北京一亚高科能源科技有限公司 | A kind of circulation fluidized bed heat conducting oil boiler of emulsion zone band abrasion-proof structure |
-
2016
- 2016-05-10 CN CN201610304894.2A patent/CN105782960B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001289569A (en) * | 2000-03-31 | 2001-10-19 | Asahi Tec Corp | Wearproof device for inner wall face of fluidized bed furnace |
| CN200968600Y (en) * | 2006-11-09 | 2007-10-31 | 上海锅炉厂有限公司 | Fluidized-bed boiler furnace transition region anti-wear structure |
| CN201203106Y (en) * | 2007-12-24 | 2009-03-04 | 上海锅炉厂有限公司 | Anti-wear structure of water-cooled wall joint of fluidized bed boiler furnace |
| CN101655233A (en) * | 2009-08-28 | 2010-02-24 | 无锡海源重工股份有限公司 | Abrasion-proof structure for dense phase region and dilute phase transitional region of boiler furnace of circulating fluid bed |
| CN201944829U (en) * | 2011-01-17 | 2011-08-24 | 四川省金路树脂有限公司 | Wearing-preventing device for transition zone of fluidized bed boiler |
| CN103712205A (en) * | 2014-01-10 | 2014-04-09 | 哈尔滨红光锅炉总厂有限责任公司 | Circulating fluidized bed hot-water boiler free of abrasion and corrosion |
| CN205782873U (en) * | 2016-05-10 | 2016-12-07 | 北京一亚高科能源科技有限公司 | A kind of circulation fluidized bed heat conducting oil boiler of emulsion zone band abrasion-proof structure |
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| Publication number | Publication date |
|---|---|
| CN105782960B (en) | 2017-08-25 |
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