CN105782961A - Tail shaft circulating fluidized bed heat conducting oil boiler with abrasion resistant structure - Google Patents
Tail shaft circulating fluidized bed heat conducting oil boiler with abrasion resistant structure Download PDFInfo
- Publication number
- CN105782961A CN105782961A CN201610305946.8A CN201610305946A CN105782961A CN 105782961 A CN105782961 A CN 105782961A CN 201610305946 A CN201610305946 A CN 201610305946A CN 105782961 A CN105782961 A CN 105782961A
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- CN
- China
- Prior art keywords
- flue
- abrasion
- fluidized bed
- heat conducting
- conducting oil
- 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
- F24H9/00—Details
-
- 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
Abstract
The invention relates to a tail shaft circulating fluidized bed heat conducting oil boiler with an abrasion resistant structure. The tail shaft circulating fluidized bed heat conducting oil boiler with the abrasion resistance structure comprises a gas flue. The gas flue is provided with a gas flue back wall, a gas flue front wall and gas flue walls at two sides. An abrasion resistant and fire proof device is arranged on the inner wall of the middle of the gas flue back wall; a plurality of horizontal coil pipes are arranged on the inner wall in the middle of the gas flue; a plurality of convection tubes are arranged at the lower portion inside the gas flue; the abrasion resistant and fire proof device is in a triangular shape; the height of the abrasion resistant and fire proof device is h, and the width of the abrasion resistant and fire proof device is delta; the diameter of each horizontal coil pipe is d; h equals (3-10)d, and delta 1 equals (0.5-2)d; the distance between the horizontal coil pipes and the inner side of the upper portion of the gas flue front wall is delta 2; delta 2 is larger than or equal to 0.5d; the distance between the horizontal coil pipes and the corresponding inner walls of the gas flue walls at two sides is delta 3; and delta 3 equals (0.5-2)d. The beneficial result of the tail shaft circulating fluidized bed heat conducting oil boiler is that the abrasion of the horizontal coil pipes is avoided by means of arranging the abrasion resistant and fire proof device on the inner wall of the middle portion of the gas flue back wall. The tail shaft circulating fluidized bed heat conducting oil boiler has the advantages of being simple in structure, being convenient and fast to process and the like.
Description
Technical field
The present invention relates to heat-transfer device technical field, particularly relate to a kind of tail vertical well circulation fluidized bed heat conducting oil boiler with abrasion-proof structure.
Background technology
Boiler adopts single drum, natural circulation mode, is divided into front portion and two vertical shafts of afterbody generally.Anterior vertical shaft is for always to hang structure, and surrounding is made up of fin panel casing.From bottom to top, being followed successively by air compartment, emulsion zone, a dilute-phase zone, back-end ductwork is followed successively by high temperature superheater, low temperature superheater and economizer, air preheater from top to bottom.Tail vertical well adopts supporting construction, is connected by vertical cyclone separator between two vertical shafts, and separator bottom couples loop back device and ash cooler.Enter heated coil face and convection heating surface at separator ash-laden gas out, easily cause the abrasion of this position heat pipe, it is necessary to shutdown maintenance, expend a large amount of manpower and materials, affect the shortcomings such as work efficiency.
Summary of the invention
For the weak point existed in the problems referred to above, the present invention provides a kind of tail vertical well circulation fluidized bed heat conducting oil boiler with abrasion-proof structure.
For achieving the above object, the present invention provides a kind of tail vertical well circulation fluidized bed heat conducting oil boiler with abrasion-proof structure to include flue, and described flue is provided with wall after flue, flue front wall and both sides flue；
After described flue, in the middle part of wall, inwall is provided with abrasionproof fire-proofing, and in the middle part of described flue, inwall is provided with many horizontal coil pipe, and in described flue, bottom is provided with multiple convection bank；
Described abrasionproof fire-proofing is triangular in shape, the height h of described abrasionproof fire-proofing, width δ 1；
The diameter d of described horizontal coil pipe；
H=(3～10) d, δ 1=(0.5～2) d:
The distance δ 2 of described horizontal coil pipe and described flue front wall upper inner；
δ2≥0.5d；
The distance δ 3 of described horizontal coil pipe distance both sides flue inner wall；
δ 3=(0.5～2) d.
Improving further as the present invention, described flue is flaring mouth-shaped, smooth excessively.
Improving further as the present invention, described convection bank upper wall is provided with triangle abrasion-proof cover plate, described abrasion-proof cover plate two wing plate length L；
Described convection bank diameter D, described abrasion-proof cover plate within angle γ；
L=(0.5+x) D/tg γ, wherein x is parametric coefficients, x=(0.2～0.5).
Improving further as the present invention, described convection bank is in-line arrangement.
The invention have the benefit that being provided with abrasionproof fire-proofing by inwall in the middle part of wall after flue avoids wear levels coil pipe, its simple in construction, the plurality of advantages such as fast easy to process.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of tail vertical well of the present invention circulation fluidized bed heat conducting oil boiler with abrasion-proof structure；
Fig. 2 be in Fig. 1 A-A to sectional view；
Fig. 3 is the sectional view of the convection bank of a kind of tail vertical well of the present invention circulation fluidized bed heat conducting oil boiler with abrasion-proof structure.
In figure: 1, flue front wall；2, wall after flue；3, abrasionproof fire-proofing；4, horizontal coil pipe；5, both sides flue；6, convection bank；601, triangle abrasion-proof cover plate.
Detailed description of the invention
As Figure 1-3, a kind of tail vertical well of the embodiment of the present invention circulation fluidized bed heat conducting oil boiler with abrasion-proof structure, including flue, flue is provided with wall 2 after flue, flue front wall 1 and both sides flue 5, after flue, in the middle part of wall 2, inwall is provided with abrasionproof fire-proofing 3, this abrasionproof fire-proofing is conventional abrasionproof refractory material, in the middle part of flue, inwall is provided with many horizontal coil pipe 4, and in flue, bottom is provided with multiple convection bank 6.Abrasionproof fire-proofing 3 is triangular in shape, the height h of abrasionproof fire-proofing 3, width δ 1；The diameter d of horizontal coil pipe 4；H=(3～10) d, δ 1=(0.5～2) d: the distance δ 2 of horizontal coil pipe 4 and flue front wall 1 upper inner；δ2≥0.5d；Horizontal coil pipe 4 is apart from the distance δ 3 of both sides flue 5 inwall；δ 3=(0.5～2) d.Flue is flaring mouth-shaped, smooth excessively.Convection bank 6 upper wall is provided with triangle abrasion-proof cover plate 601,601 liang of wing plate length L of abrasion-proof cover plate, convection bank 6 diameter D, abrasion-proof cover plate 601 within angle γ；L=(0.5+x) D/tg γ, wherein x is parametric coefficients, x=(0.2～0.5), and convection bank 6 is in-line arrangement.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (4)
1. a tail vertical well circulation fluidized bed heat conducting oil boiler with abrasion-proof structure, including flue, described flue is provided with wall (2) after flue, flue front wall (1) and both sides flue (5), it is characterised in that:
After described flue, wall (2) middle part inwall is provided with abrasionproof fire-proofing (3), and in the middle part of described flue, inwall is provided with many horizontal coil pipe (4), and in described flue, bottom is provided with multiple convection bank (6)；
Described abrasionproof fire-proofing (3) is triangular in shape, the height h, width δ 1 of described abrasionproof fire-proofing (3)；
The diameter d of described horizontal coil pipe (4)；
H=(3～10) d, δ 1=(0.5～2) d:
The distance δ 2 of described horizontal coil pipe (4) and described flue front wall (1) upper inner；
δ2≥0.5d；
The distance δ 3 of described horizontal coil pipe (4) distance both sides flue (5) inwall；
δ 3=(0.5～2) d.
2. the tail vertical well according to claim 1 circulation fluidized bed heat conducting oil boiler with abrasion-proof structure, it is characterised in that: described flue is flaring mouth-shaped, smooth excessively.
3. the tail vertical well according to claim 1 circulation fluidized bed heat conducting oil boiler with abrasion-proof structure, it is characterized in that: described convection bank (6) upper wall is provided with triangle abrasion-proof cover plate (601), described abrasion-proof cover plate (601) two wing plate length L；
Described convection bank (6) diameter D, described abrasion-proof cover plate (601) within angle γ；
L=(0.5+x) D/tg γ, wherein x is parametric coefficients, x=(0.2～0.5).
4. the tail vertical well according to claim 3 circulation fluidized bed heat conducting oil boiler with abrasion-proof structure, it is characterised in that: described convection bank (6) is in-line arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610305946.8A CN105782961B (en) | 2016-05-10 | 2016-05-10 | A kind of circulation fluidized bed heat conducting oil boiler of tail vertical well with abrasion-proof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610305946.8A CN105782961B (en) | 2016-05-10 | 2016-05-10 | A kind of circulation fluidized bed heat conducting oil boiler of tail vertical well with abrasion-proof structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105782961A true CN105782961A (en) | 2016-07-20 |
| CN105782961B CN105782961B (en) | 2017-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610305946.8A Active CN105782961B (en) | 2016-05-10 | 2016-05-10 | A kind of circulation fluidized bed heat conducting oil boiler of tail vertical well with abrasion-proof structure |
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| CN (1) | CN105782961B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655019A (en) * | 2017-10-10 | 2018-02-02 | 苏州海陆重工股份有限公司 | Wall and downward-flow flue front wall junction abrasion-proof structure after waste heat boiler uptake flue |
| WO2023241269A1 (en) * | 2022-06-15 | 2023-12-21 | 清华大学 | Double-medium tfb gasification incinerator and method for implementing waste gasification and incineration |
Citations (5)
| 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 |
| CN201487944U (en) * | 2009-09-17 | 2010-05-26 | 江西恒大高新技术股份有限公司 | Anti-abrasion device for circulating fluid bed boiler water wall |
| CN202182465U (en) * | 2011-04-01 | 2012-04-04 | 张全胜 | Stream guidance stand for dense-phase area of circulating fluidized bed boiler |
| CN103185337A (en) * | 2013-04-02 | 2013-07-03 | 刘少光 | Anti-abrasion and attrition-reducible circulating fluidized bed boiler |
| CN205640883U (en) * | 2016-05-10 | 2016-10-12 | 北京一亚高科能源科技有限公司 | Afterbody shaft area wear resisting structure's circulation bed conduction oil boiler |
-
2016
- 2016-05-10 CN CN201610305946.8A patent/CN105782961B/en active Active
Patent Citations (5)
| 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 |
| CN201487944U (en) * | 2009-09-17 | 2010-05-26 | 江西恒大高新技术股份有限公司 | Anti-abrasion device for circulating fluid bed boiler water wall |
| CN202182465U (en) * | 2011-04-01 | 2012-04-04 | 张全胜 | Stream guidance stand for dense-phase area of circulating fluidized bed boiler |
| CN103185337A (en) * | 2013-04-02 | 2013-07-03 | 刘少光 | Anti-abrasion and attrition-reducible circulating fluidized bed boiler |
| CN205640883U (en) * | 2016-05-10 | 2016-10-12 | 北京一亚高科能源科技有限公司 | Afterbody shaft area wear resisting structure's circulation bed conduction oil boiler |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655019A (en) * | 2017-10-10 | 2018-02-02 | 苏州海陆重工股份有限公司 | Wall and downward-flow flue front wall junction abrasion-proof structure after waste heat boiler uptake flue |
| CN107655019B (en) * | 2017-10-10 | 2023-07-28 | 苏州海陆重工股份有限公司 | Anti-wear structure for joint of back wall of rising flue and front wall of falling flue of waste heat boiler |
| WO2023241269A1 (en) * | 2022-06-15 | 2023-12-21 | 清华大学 | Double-medium tfb gasification incinerator and method for implementing waste gasification and incineration |
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| Publication number | Publication date |
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| CN105782961B (en) | 2017-08-25 |
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