CN100416161C - Circulating fluidized bed boiler - Google Patents
Circulating fluidized bed boiler Download PDFInfo
- Publication number
- CN100416161C CN100416161C CNB2005100414756A CN200510041475A CN100416161C CN 100416161 C CN100416161 C CN 100416161C CN B2005100414756 A CNB2005100414756 A CN B2005100414756A CN 200510041475 A CN200510041475 A CN 200510041475A CN 100416161 C CN100416161 C CN 100416161C
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- brick
- deflector
- steel pipe
- cyclone separator
- cfbb
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Abstract
The present invention relates to a circulating fluidized bed boiler. The present invention comprises the horizontal section of an outlet of a high temperature cyclone separator, wherein a plurality of vertical guide plates are arranged at the horizontal section of the outlet of the high temperature cyclone separator; the directions of the guide plates are identical to the direction of an outlet passage; the height of the guide plates is matched with the horizontal section of the outlet of the cyclone separator. Because the guide plates change the outlet air of the cyclone separator form rotary airflow to smooth airflow, partial impingement and abrasion of the airflow to heated steel pipes are reduced, the service life of the boiler is prolonged, and the heating to the heated steel pipes is uniform.
Description
Technical field
The present invention relates to CFBB.
Background technology
In high temperature cyclone separating CFBB, the flue gas of high temperature cyclone separator outlet has higher smoke content, because action of inertia, flue gas rotates at a high speed, because outlet section flue gas flow length is restricted, steady flow result can't be guaranteed, and the flue gas flow rate deviation is obvious.Thereby cause the concentrated wear of outlet section boiler heating surface, cause the local steel pipe wearing and tearing of the heating surface earial drainage that breaks, have a strong impact on the normal operation of boiler.
Summary of the invention
The object of the present invention is to provide a kind of Circulating Fluidized Bed Conservancy Diversion Antiwear Boiler, it can reduce the flow rate deviation of the high-temperature flue gas of inertia rotation, thereby reduce the concentrated wear of boiler heating surface, prevent the rupture and leakage accident that steel pipe causes because of wearing and tearing, guarantee the normal operation of boiler.
Technical scheme of the present invention is as follows:
A kind of CFBB, it comprises high temperature cyclone separator outlet horizontal segment, at high temperature cyclone separator outlet horizontal segment, the vertical deflector of multiple tracks is housed, the direction of deflector is consistent with the direction of exit passageway, the height of the height of deflector and cyclone separator outlet horizontal segment is complementary, and described deflector adopts that resistant to elevated temperatures brick is brick to form.Deflector makes the air-out of cyclone separator change over smooth air by swirling eddy, has reduced impact, the wearing and tearing of air-flow to local heating's steel pipe, and is more even to the heating of the steel pipe that is heated.
Above-mentioned CFBB at high temperature cyclone separator outlet horizontal segment, according to varying in size of boiler, can be equipped with the vertical deflector in 2～6 roads.
Above-mentioned CFBB, the cross section of described deflector can be rectangle, rhombus or streamlined, and rhombus or streamlined preferably is to reduce its resistance.
Above-mentioned CFBB, the widest part of the cross section of described deflector are 80～150 millimeters, and length is 300～800 millimeters.
Above-mentioned deflector can adopt resistant to elevated temperatures rectangular tiles, rhombus brick or the streamlined brick is brick forms.
Above-mentioned CFBB, described deflector collapses in order to prevent brick vertical deflector, the steel pipe of ventilation cooling was as anchor post in the fragment of brick center of per pass deflector can be installed with, the two ends of steel pipe are passed upper and lower heat-insulation layer of boiler and steel plate respectively, one end of steel pipe is an air inlet, and the other end is an air outlet.
Above-mentioned CFBB, the mobile wind in the described steel pipe can be introduced by boiler blower, and the outlet hot blast can be connected in once or the secondary air channel road, by boiler combustion is utilized.
Above-mentioned CFBB, installation for the ease of brick vertical deflector, rectangular tiles, rhombus brick or streamlined brick can divide forward and backward two bats to form, there is gap two bat junctions, front and back, can be stuck in the anchor post steel pipe in the middle of it, because the thermal coefficient of expansion of steel pipe is big, and the thermal coefficient of expansion of high temperature resistant brick is little, for the steel pipe expansion afterwards that prevents to be heated causes the cracked of brick, can outside the anchor post steel pipe, twine the high-temperature-resistant flexible asbestos material.
Above-mentioned CFBB, described forward and backward two bats have interior ventilation cooling pipe respectively as anchor post.
Above-mentioned CFBB, in order to prevent that forward and backward two bats from producing displacement, forward and backward two bats have last convex shoulder and following convex shoulder respectively, upper and lower convex shoulder is overlapped into a full sized brick, pin is arranged on the upper and lower convex shoulder or have horizontal groove or fin to make between forward and backward two bats respectively and intermesh, displacement before and after not understanding.
Above-mentioned CFBB produces left and right displacement in order to prevent forward and backward two halves, and forward and backward two bat above and below have groove or fin longitudinally respectively, makes between the upper and lower brick and intermeshes, can left and right displacement.
The advantage of this patent is easily manufactured, installs the multiple tracks deflector additional at outlet section, can prevent the concentrated wear of boiler heating surface effectively, and effect is obvious, and is safe and reliable.In addition, this deflector is made, checks, keeps in repair very convenient, has simplified to preventing the construction costs of the inhomogeneous required lengthening steady flow segment of flue gas, can make the structure of boiler compact more perfect.
Description of drawings:
Fig. 1 is the vertical view that the high temperature cyclone separator outlet horizontal segment of the vertical deflector of multiple tracks is housed, and wherein: 1 is preceding anchor post steel pipe; 2 is back anchor post steel pipe; 3 is preceding bat; 4 is the back bat; 5 are the cyclone separator outlet.
Fig. 2 is the preceding bat of streamlined brick, and wherein: 2a is a front view; 2b is a vertical view; 2c is a left view.
Fig. 3 is the back bat of streamlined brick, and wherein: 2a is a front view; 2b is a vertical view; 2c is a left view.
The specific embodiment:
Embodiment 1.
A kind of CFBB, it comprises high temperature cyclone separator outlet horizontal segment, at high temperature cyclone separator outlet horizontal segment, the vertical brick deflector in 4 roads is housed, the fragment of brick of deflector is poured into a mould in advance by the diamond spar mullite pouring material and is formed.The direction of deflector is consistent with the direction of exit passageway, and the height of the height of deflector and cyclone separator outlet horizontal segment is complementary, as Fig. 1, Fig. 2 and shown in Figure 3.The vertical brick deflector of per pass prevents that by 2 φ 51mm steel pipes 1 and 2 pillar that fixes deflector in use is subjected to collapse after sweep of gases and the thermal expansion.The anchor post steel pipe is coated in the deflector brick, does not directly contact with flue gas.In steel pipe 1 and 2, blowing air cools off from bottom to top, can be used as the burning that wind and secondary wind participate in boiler after the air heat.The cross section of deflector is a streamlined, and long is 400mm, and the widest part is 100mm.The streamlined brick is made up of forward and backward two bats, and preceding bat has last convex shoulder, has horizontal groove, back bat that following convex shoulder is arranged on the lower plane of convex shoulder, and horizontal fin is arranged on the plane on the convex shoulder, and upper and lower convex shoulder is superimposed, forms a full sized brick, and groove and fin intermesh.The upper surface of forward and backward two bats and lower surface have fin and groove respectively, and groove and fin between upper and lower two bricks intermesh, and making can not forward and backward or left and right displacement between the streamlined brick.Forward and backward two bat junctions have gap respectively, and in the middle of the anchor post that is wound with asbestos yarn was stuck in, anchor post played a supportive role, and prevents that the monolithic deflector from collapsing.
Turn to and velocity deviation according to air-flow earlier during installation, determine the quantity of the vertical deflector of multiple tracks and the location dimension that all around is arranged.Determine the position of the air-cooled steel pipe of anchor post simultaneously, and fix it.Build the streamlined deflector by laying bricks or stones, and stay 5mm left and right sides dilatation joint, and inlay with flexible asbestos material on top and flue top.
CFBB of the present invention has avoided having the rotation wind of hot flue gases of higher smoke content to the concentrated wear of boiler heating surface steel pipe, has prolonged the service life of boiler, and the thermal efficiency of boiler also increases simultaneously.
Claims (9)
1. CFBB, it comprises high temperature cyclone separator outlet horizontal segment, it is characterized in that: at high temperature cyclone separator outlet horizontal segment, the vertical deflector of multiple tracks is housed, the direction of deflector is consistent with the direction of exit passageway, the height of the height of deflector and cyclone separator outlet horizontal segment is complementary, and described deflector adopts that resistant to elevated temperatures brick is brick to form.
2. CFBB according to claim 1 is characterized in that: at high temperature cyclone separator outlet horizontal segment, according to varying in size of boiler, the vertical deflector in 2～6 roads is housed.
3. CFBB according to claim 1 is characterized in that: the cross section of described deflector is rectangle, rhombus or streamlined, adopts resistant to elevated temperatures rectangular tiles, rhombus brick or the streamlined brick is brick forms.
4. CFBB according to claim 3, it is characterized in that: the steel pipe of the cooling of ventilating in the fragment of brick center of per pass deflector is installed with is as anchor post, the two ends of steel pipe are passed upper and lower heat-insulation layer of boiler and steel plate respectively, and an end of steel pipe is an air inlet, and the other end is an air outlet.
5. CFBB according to claim 4 is characterized in that: the mobile wind in the described steel pipe is introduced by boiler blower, and the outlet hot blast is connected in once or the secondary air channel road, by boiler combustion is utilized.
6. CFBB according to claim 3, it is characterized in that: rectangular tiles, rhombus brick or streamlined brick divide forward and backward two bats to form, there is gap two bat junctions, front and back, the anchor post steel pipe is stuck in the middle of it, outside the anchor post steel pipe, twines the high-temperature-resistant flexible asbestos material.
7. CFBB according to claim 6 is characterized in that: described forward and backward two bats have interior ventilation cooling pipe respectively as anchor post.
8. CFBB according to claim 6, it is characterized in that: forward and backward two bats have last convex shoulder and following convex shoulder respectively, upper and lower convex shoulder is overlapped into a full sized brick, pin is arranged on the upper and lower convex shoulder or horizontal groove or fin are arranged respectively, make between forward and backward two bats and intermesh, displacement before and after not understanding.
9. according to claim 6 or 8 described CFBBs, it is characterized in that: forward and backward two bat above and below have groove or fin longitudinally respectively, make between the upper and lower brick and intermesh, can left and right displacement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100414756A CN100416161C (en) | 2005-08-15 | 2005-08-15 | Circulating fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100414756A CN100416161C (en) | 2005-08-15 | 2005-08-15 | Circulating fluidized bed boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1737425A CN1737425A (en) | 2006-02-22 |
| CN100416161C true CN100416161C (en) | 2008-09-03 |
Family
ID=36080312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100414756A Expired - Fee Related CN100416161C (en) | 2005-08-15 | 2005-08-15 | Circulating fluidized bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100416161C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104138950B (en) * | 2014-06-30 | 2016-06-29 | 刘上中 | A kind of technique of cutting processing metal abrasionproof deflector |
| CN108656525A (en) * | 2017-03-29 | 2018-10-16 | 宁夏共享模具有限公司 | A kind of air cooling mechanism of 3D printing discharging |
| CN110523207A (en) * | 2019-09-05 | 2019-12-03 | 山东保蓝环保工程有限公司 | A kind of flue gas being installed on boiler smoke outlet takes off white equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4481892A (en) * | 1983-08-03 | 1984-11-13 | Mah Clifford S | Atmospheric fluidized bed combustor |
| CN2080418U (en) * | 1990-08-03 | 1991-07-10 | 江西锅炉厂 | Counter-stop type inertia separator for smoke contg. dust |
| CN1031016C (en) * | 1991-06-24 | 1996-02-14 | 江西锅炉厂 | Cycling fuidized bed boiler with low carrying rate |
| US5562884A (en) * | 1990-04-17 | 1996-10-08 | A. Ahlstrom Corporation | Reducing N2 O emissions when burning nitrogen-containing fuels in fluidized bed reactors |
| CN2294764Y (en) * | 1997-06-10 | 1998-10-21 | 江西锅炉厂 | Lower-exhaust ash separator with repeller |
| CN2588208Y (en) * | 2002-12-20 | 2003-11-26 | 孙峰 | Flue gas flow-guiding device for coal-saving apparatus of boiler |
-
2005
- 2005-08-15 CN CNB2005100414756A patent/CN100416161C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4481892A (en) * | 1983-08-03 | 1984-11-13 | Mah Clifford S | Atmospheric fluidized bed combustor |
| US5562884A (en) * | 1990-04-17 | 1996-10-08 | A. Ahlstrom Corporation | Reducing N2 O emissions when burning nitrogen-containing fuels in fluidized bed reactors |
| CN2080418U (en) * | 1990-08-03 | 1991-07-10 | 江西锅炉厂 | Counter-stop type inertia separator for smoke contg. dust |
| CN1031016C (en) * | 1991-06-24 | 1996-02-14 | 江西锅炉厂 | Cycling fuidized bed boiler with low carrying rate |
| CN2294764Y (en) * | 1997-06-10 | 1998-10-21 | 江西锅炉厂 | Lower-exhaust ash separator with repeller |
| CN2588208Y (en) * | 2002-12-20 | 2003-11-26 | 孙峰 | Flue gas flow-guiding device for coal-saving apparatus of boiler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1737425A (en) | 2006-02-22 |
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| Date | Code | Title | Description |
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| 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 | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu Taihu Boiler Co., Ltd. Assignor: Gu Liping Contract record no.: 2011320010002 Denomination of invention: Manufacturing method of undergrate air distribution plate of circulation fluidized bed boiler Granted publication date: 20080903 License type: Exclusive License Open date: 20060222 Record date: 20110303 |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080903 Termination date: 20120815 |