CN204240346U - Fluidized-bed combustion boiler external bed whirlwind fluidization system - Google Patents
Fluidized-bed combustion boiler external bed whirlwind fluidization system Download PDFInfo
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- CN204240346U CN204240346U CN201420693256.0U CN201420693256U CN204240346U CN 204240346 U CN204240346 U CN 204240346U CN 201420693256 U CN201420693256 U CN 201420693256U CN 204240346 U CN204240346 U CN 204240346U
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- combustion boiler
- whirlwind
- high temperature
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- 238000005243 fluidization Methods 0.000 title claims abstract description 103
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 70
- 239000002245 particle Substances 0.000 claims abstract description 44
- 230000005540 biological transmission Effects 0.000 claims abstract description 43
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 6
- 230000003993 interaction Effects 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 18
- 230000033001 locomotion Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model provides a kind of fluidized-bed combustion boiler external bed whirlwind fluidization system, and be applicable to fluidized-bed combustion boiler external bed, comprise: fluidized-bed combustion boiler external bed, inside has been room; At least four high temperature circulation particulate charge pipes, pass into high temperature circulation particle in high temperature circulation particulate charge pipe; At least four first class airducts, be arranged in the sidewall of fluidized-bed combustion boiler external bed, formed with empty room and be communicated with and be communicated in high temperature circulation particulate charge pipe, the fluidized wind entering first class airduct carries the high temperature circulation particle formation jet entering high temperature circulation particulate charge pipe and is incident upon in sky room, and each jet interactions forms eddy flow; Multiple second wind transmission pipe, is vertically communicated in the bottom of sky room, is sent in sky room by the fluidized wind entering second wind transmission pipe.The utility model can make high temperature circulation particle at the horizontal whirlwind of the indoor formation of sky and vertical fluidized, thus realizes high temperature circulation particle and heating surface heat exchange fully, solves fluidized wind and arrange irrational problem.
Description
Technical field
The utility model relates to a kind of fluidization system of fluidized-bed combustion boiler external bed, particularly fluidized-bed combustion boiler external bed carry out whirlwind air distribution fluidisation system to boiler recycle stock.
Background technology
CFBB is widely used day by day, mainly because it has the multiple advantages such as control polluted articles discharge costs is cheap, fuel tolerance is wide, load regulation range is large.Along with the continuous lifting of CFBB capacity and parameter, boiler heat-exchanger Heat absorption fraction significantly improves, and difficulty continues to increase to cause stove internal heating surface to arrange.Therefore large-scale fluidized bed boiler extensively adopts various forms of external bed.So-called external bed is exactly move to outside boiler by a part of heating surface in boiler, and a kind of heat-exchange device heated by high-temp circulating ash, is also called external heat exchanger.
Existing external bed (external heat exchanger) is designed to the airtight frame structure device be made up of liner High Strength Wear-Resistance Material, and its inside is divided into several bin by dividing wall.Dividing wall is made up of carbon steel, and is laid with Fire and abrasion resistant material on surface, adopts enclosed water quench in dividing wall.Each bin is furnished with bellows, and high temperature circulation particle realizes fluidisation by the bell-type windshield be arranged in bottom bin.In external bed, high temperature circulation particle carries out heat exchange with the heating surface arranged in each bin successively.For reducing steam (vapor) outlet Temperature Deviation, controlling heating surface temperature, the design of heating surface caliber and area need be carried out according to high, medium and low temperature heat-exchange temperature level.
But, by several for external bed interior separation bin in prior art, high temperature circulation particle can be caused only in bin, to carry out vertical circulation, transverse movement is limited, and the situation insufficient with heating surface heat exchange occurs, and in each bin, the high temperature circulation particle temperature difference of fluidisation is larger, differ with heating surface heat transfer intensity, heating surface is arranged and is required strictly with coordinating of fluidized wind, if there is cooperation deviation, heating surface heat exchange easily occurs uneven.Moreover, owing to only having bottom to be furnished with fluidization hood in bin, if Fire and abrasion resistant material comes off the fluidized wind blast cap plugged bottom bin in material returning valve or external bed, part bin Fluidization wind rate will be caused low, high temperature circulation particle cannot fluidisation, cannot with heating surface heat exchange.
Utility model content
The utility model provides a kind of fluidized-bed combustion boiler external bed whirlwind fluidization system, and insufficient, uneven to solve in prior art high temperature circulation particle and heating surface heat exchange in external bed, fluidized wind arranges irrational problem.
The technical scheme that the utility model provides is for providing a kind of fluidized-bed combustion boiler external bed whirlwind fluidization system, be applicable to first-class fluidized bed boiler external bed, wherein, whirlwind fluidization system comprises: fluidized-bed combustion boiler external bed, at least four first class airducts, at least four high temperature circulation particulate charge pipes, multiple second wind transmission pipes.The inside of fluidized-bed combustion boiler external bed has been room; High temperature circulation particle is passed in each high temperature circulation particulate charge pipe; Each first class airduct is arranged in the sidewall of fluidized-bed combustion boiler external bed, formed with empty room and be communicated with, and be communicated in high temperature circulation particulate charge pipe, the fluidized wind entering first class airduct carries the high temperature circulation particle formation jet entering high temperature circulation particulate charge pipe and is incident upon in sky room, and each jet interactions forms eddy flow; Each second wind transmission pipe is vertically communicated in the bottom of sky room, is sent in sky room by the fluidized wind entering second wind transmission pipe.
Fluidized-bed combustion boiler external bed whirlwind fluidization system as above, wherein, first class airduct be uniformly distributed be arranged at fluidized-bed combustion boiler external bed sidewall in.
Fluidized-bed combustion boiler external bed whirlwind fluidization system as above, wherein, first class airduct is horizontally placed in the top sidewall of fluidized-bed combustion boiler external bed.
Fluidized-bed combustion boiler external bed whirlwind fluidization system as above, wherein, first class airduct is provided with whirlwind stator near one end place of empty room.
Fluidized-bed combustion boiler external bed whirlwind fluidization system as above, wherein, whirlwind stator is 8 or 12.
Fluidized-bed combustion boiler external bed whirlwind fluidization system as above, wherein, the air outlet place of each second wind transmission pipe is provided with bell-jar fluidization hood.
Fluidized-bed combustion boiler external bed whirlwind fluidization system as above, wherein, the not congruent footpath of bell-jar fluidization hood, arrange pipe with small pipe diameter fluidization hood in the air outlet place of the second wind transmission pipe being communicated in sky room bottom center portion, arrange Large Diameter Pipeline fluidization hood in the air outlet place of the second wind transmission pipe being communicated in sky room bottom margin.
Fluidized-bed combustion boiler external bed whirlwind fluidization system as above, wherein, pipe with small pipe diameter fluidization hood and Large Diameter Pipeline fluidization hood diameter ratio are 1.0:1.2.
Fluidized-bed combustion boiler external bed whirlwind fluidization system as above, wherein, first class airduct is provided with wind pressure sensor.
Fluidized-bed combustion boiler external bed whirlwind fluidization system as above, wherein, first class airduct is provided with airduct control valve and airduct stop valve.
Technical scheme in sum, the first class airduct arranged by the top lateral wall circumference even level of fluidized-bed combustion boiler external bed is coordinated with the high temperature circulation particulate charge pipe being communicated in first class airduct, sky fluidized wind and high temperature circulation particle being sent into fluidized-bed combustion boiler external bed is indoor, thus makes fluidized wind carry high temperature circulation particle to do horizontal fluidised swirling motion; By fluidized wind that bell-jar fluidization hood is introduced bottom fluidized-bed combustion boiler external bed, make bottom fluidization wind carry high temperature circulation particle and do vertical fluidized motion, horizontal fluidised swirling motion combines with vertical fluidized motion thus the heating surface of high temperature circulation particle and sky indoor is carried out fully and heat exchange equably.
Feature of the present utility model is, better realize whirlwind fluidisation to make fluidized wind and high temperature circulation particle to move and vertical fluidized motion, first class airduct in fluidized-bed combustion boiler external bed is provided with whirlwind stator near one end place of empty room, makes the fluidized wind entering fluidized-bed combustion boiler external bed carry high temperature circulation particle and does radial rotary motion.The utility model also improves to fluidized-bed combustion boiler external bed second wind transmission pipe and in the bell-jar fluidization hood layout of its air outlet place setting, arrange pipe with small pipe diameter fluidization hood in the second wind transmission pipe place of fluidized-bed combustion boiler external bed bottom center portion, arrange Large Diameter Pipeline fluidization hood in the second wind transmission pipe place of the bottom margin of fluidized-bed combustion boiler external bed.By bell-jar fluidization hood layout of the present utility model, reduce the empty indoor sidewall of external bed to the viscous effect of high temperature circulation particle, enhance the fluidization of fluid bed madial wall simultaneously.
Another feature of the present utility model is, in order to ensure the high temperature circulation particle introducing uniform flow from high temperature circulation particulate charge pipe, each first class airduct is provided with airduct control valve, airduct stop valve and wind pressure sensor.Therefore, it is insufficient, uneven that the utility model can to solve in prior art high temperature circulation particle and heating surface heat exchange in external bed, fluidized wind arranges irrational problem, and then make the high temperature circulation particle and more abundant, the uniform heat exchange of heating surface that enter the empty room of external bed, improve the thermal efficiency of external bed, more reasonably fluidized wind configuration makes the operation of external bed more flexible, and load adjustment is more rapid, improves the load-response-speed of fluidized-bed combustion boiler.
Accompanying drawing explanation
Fig. 1 is the top view of the fluidized-bed combustion boiler external bed whirlwind fluidization system of the utility model one embodiment;
Fig. 2 is the side view of the fluidized-bed combustion boiler external bed whirlwind fluidization system of the utility model embodiment;
Fig. 3 is the top view of the empty room of external bed in the fluidized-bed combustion boiler external bed whirlwind fluidization system of the utility model embodiment;
Fig. 4 is the top view of the fluidized-bed combustion boiler external bed whirlwind fluidization system of another embodiment of the utility model;
Fig. 5 is the axial sectional view of first class wind pipeline of the utility model embodiment;
Fig. 6 is the utility model embodiment whirlwind stator place pipeline radial cross-section.
Reference numeral illustrates:
10: the empty room of fluidized-bed combustion boiler external bed;
11: fluidized-bed combustion boiler external bed flank wall;
12: fluidized-bed combustion boiler external bed corner wall;
20: first class airduct;
201: fluidized wind;
21: high temperature circulation particulate charge pipe;
211: high temperature circulation particle;
22: bell-jar fluidization hood;
23: second wind transmission pipe;
231: fluidized wind;
24: the horizontal tornado flow wind transmission in top jet;
31: straight tube;
32: whirlwind stator:
41: wind pressure sensor;
42: airduct stop valve;
43: airduct control valve.
Detailed description of the invention
In order to make technical characterstic of the present utility model and effect more obvious, existing spy is described further the technical solution of the utility model by reference to the accompanying drawings, it should be noted that, the utility model is communicated with angle to first class airduct with fluidized-bed combustion boiler external bed sidewall and does not limit, as long as ensure that the jet launched from fluidisation airduct can form the fluidisation eddy flow of an inscribed circle shape in the empty indoor of external bed, the high temperature circulation particle that the fluidized wind that the jet said refers to carries here.Meanwhile, the shape of the utility model to the empty room of external bed does not also limit, and the concrete size of size bell-jar fluidization hood related to and layout also do not limit.In addition, accompanying drawing is depicted as simplification, schematically expresses, the not realistic ratio of the component size in figure.
As shown in Figure 1, accompanying drawing 1 is the top view of the fluidized-bed combustion boiler external bed whirlwind fluidization system of the utility model one embodiment, and whirlwind fluidization system comprises: fluidized-bed combustion boiler external bed, at least four first class airducts 20, at least four high temperature circulation particulate charge pipes 21, multiple second wind transmission pipe (Fig. 1 does not show).
The utility model embodiment is arranged at empty indoor, fluidized-bed combustion boiler external bed top for the distribution of first class airduct horizontal homogeneous and is described whirlwind fluidization system.Other forms of non-perpendicular whirlwind fluidisation same level whirlwind fluidisation, is not just describing here one by one.
The inside of fluidized-bed combustion boiler external bed has been room 10, in the utility model one embodiment, the empty room of external bed is an approximate octagon layout, be made up of four flank walls 11 and four corner walls 12, its structure is see shown in accompanying drawing 1, horizontally disposed and each corner being arranged at external bed top at an angle, one end of four first class airducts 20 within the walls, four high temperature circulation particulate charge pipes 21 are arranged vertically, weld together with one end of first class airduct 20 respectively, also the one end by one section of bend pipe and overhead stream wind transmission pipe 20 welds together, high temperature circulation particulate charge pipe 21 and first class airduct 20 is made to be connected state, the high temperature circulation particle formation top water advection wind transmission jet that fluidized wind in each first class airduct 20 can carry each high temperature circulation particulate charge pipe 21 enters to the empty indoor of external bed, each top water advection wind transmission jet is at the counterclockwise fluidisation eddy flow of horizontal direction of the empty indoor formation quadrangle tangential circle of external bed, thus realize the horizontal fluidised of high temperature circulation particle.
In the present embodiment, multiple second wind transmission pipe, is vertically communicated in the bottom of sky room, is sent in sky room by the fluidized wind entering second wind transmission pipe.The air outlet place of second wind transmission pipe is provided with bell-jar fluidization hood, refer to accompanying drawing 2 and accompanying drawing 3, accompanying drawing 2 is the side view of the fluidized-bed combustion boiler external bed whirlwind fluidization system of the utility model embodiment, accompanying drawing 3 is the top view of the empty room of external bed in the fluidized-bed combustion boiler external bed whirlwind fluidization system of the utility model embodiment, fig. 3 gives the layout scenarios of bell-jar fluidization hood 22.As shown in Figure 2, bell-jar fluidization hood 22 is connected with second wind transmission pipe 23.During fluidized-bed combustion boiler external bed whirlwind fluidisation system works, the fluidized wind 231 passing into second wind transmission pipe 23 is sent in the empty room 10 of external bed by bell-jar fluidization hood 22, the high-temperature particle that level rotary flow is fallen by fluidized wind 231 sends into vertical fluidized circulation again, make the continuous horizontal cyclic of high temperature circulation particle, vertical circulation, thus realize high temperature circulation particle and heating surface exchanges fully.
The utility model is not limited to the shape of above-mentioned fluidized-bed combustion boiler external bed, in another embodiment of the utility model, the empty room of external bed is a quadrangular layout, first class airduct at an angle or be vertically installed in the four avris walls at external bed top, as long as first class airduct and four avris walls be communicated with jet that position ensures to launch from fluidisation airduct can form the horizontal direction of the shape of inscribed circle fluidisation eddy flow in the empty indoor of external bed, in other embodiments, outer wall wall is an approximate dodecagon layout, according to actual requirement of engineering, the shape of fluidized-bed combustion boiler external bed is generally quadrangular layout or approximate octagon layout.
Simultaneously, the utility model does not also do concrete restriction to the number of first class airduct and high temperature circulation particulate charge pipe, as long as ensure that first class airduct and high temperature circulation particulate charge pipe layout can meet the high temperature circulation particle that fluidized wind carries and form counterclockwise eddy flow at top, empty room, but first class airduct and high temperature circulation particulate charge pipe are one to one, namely their number is identical, preferably, high temperature circulation particulate charge pipe and fluidisation airduct caliber are 1:1 ratio, for convenience of description, the high temperature circulation particle feed tube related in subsequent embodiment and fluidisation airduct are 4.
The fluidized wind related in the utility model can be drawn by a fluidisation airduct, this root fluidisation airduct is formed with four first class airducts in place and is communicated with, thus fluidized wind is split into 4 horizontal directions, in one embodiment, the fluidized wind entering second wind transmission pipe and the fluidized wind entering first class airduct are that drainage is in same flow wind transmission pipe.
The utility model first class airduct and high temperature circulation particulate charge pipe to be formed with elbow pipe welding by one and are communicated with, and first class airduct also can be formed directly in high temperature circulation particulate charge pipe and is communicated with.The non-essential vertical arrangement of described high temperature circulation particulate charge pipe, also can have the one end being welded in bend pipe at certain angle of inclination, as long as angle of inclination ensures that soak cycles particle fully can mix with fluidized wind.
The fluidized-bed combustion boiler external bed whirlwind fluidization system provided in the another embodiment of the utility model also comprises four horizontal straight tubes, as Fig. 2, shown in Fig. 4, Fig. 4 is the top view of the fluidized-bed combustion boiler external bed whirlwind fluidization system of another embodiment of the utility model, each horizontal straight tube 31 one end is horizontally placed in corner, the top wall 12 of fluidized-bed combustion boiler external bed, each horizontal straight tube 31 can connect with corner wall 12 is vertical or connects at an angle, the principle of connecting mode is selected to be that the jet that four horizontal straight tubes send can form the counterclockwise fluidisation eddy flow of horizontal direction of quadrangle tangential circle in empty room in external bed.Each horizontal straight tube 31 other end is communicated with first class airduct 20 one end, and high temperature circulation particulate charge pipe 21 is directly communicated with or is communicated in one end of first class airduct 20 and the other end of horizontal straight tube 31 by a bend pipe.Wherein, the caliber of the caliber of high temperature circulation particulate charge pipe 21, first class airduct 20 caliber and horizontal straight tube 31 is the ratio of 1:1:1.Meanwhile, in one end that horizontal straight tube 31 is communicated with the empty room of external bed, 8 whirlwind stators 32 are provided with.As shown in Figures 4 to 6, Fig. 5 is the axial sectional view of first class wind pipeline of the utility model embodiment, Fig. 6 is the utility model embodiment whirlwind stator place pipeline radial cross-section, what whirlwind stator was evenly distributed be arranged at horizontal straight tube or first class airduct pass into the port, one end to the empty room 10 of external bed, described whirlwind stator is made up of high-abrasive material, fluidized wind 201 carries high temperature circulation particle 211 after whirlwind stator 32, doing radial rotary is moved into the empty room of external bed, the high temperature circulation particle carried by the fluidized wind entering to sky room can form the distinguished and admirable wind transmission jet 24 of horizontal rotary, by cooperatively interacting of the distinguished and admirable wind transmission jet 24 of each horizontal rotary, make fluidized wind carry high temperature circulation particle and do anticlockwise horizontal eddy flow in the empty indoor of external bed, namely axial horizontal rotary distinguished and admirableization is formed.
Evenly fully heat exchange is better realized in order to enable the utility model, solve fluidized wind and arrange irrational problem, the utility model is again in an embodiment, be arranged at the not congruent footpath of bell-jar fluidization hood 22 at second wind transmission pipe air outlet place, refer to shown in accompanying drawing 2 and accompanying drawing 3 again, Fig. 3 shows the layout of bell-jar fluidization hood, the i.e. layout of second wind transmission pipe, in the present embodiment, in external bed empty room, bottom center portion is communicated with 3X3, totally nine second wind transmission pipes, the air outlet place of these nine second wind transmission pipes is provided with pipe with small pipe diameter bell-jar fluidization hood, external bed Kong Shi edge around pipe with small pipe diameter bell-jar fluidization hood is communicated with 12 second wind transmission pipes, the air outlet place of these 12 second wind transmission pipes is provided with Large Diameter Pipeline bell-jar fluidization hood, in a preferred embodiment of the present utility model, Large Diameter Pipeline bell-jar fluidization hood and pipe with small pipe diameter bell-jar fluidization hood diameter ratio are about 1.2:1.0, the fluidized wind of second wind transmission pipe is shunted by a fluidisation airduct and is obtained.During fluidized-bed combustion boiler external bed whirlwind fluidisation system works, fluidized wind is passed into second wind transmission pipe 23, it is empty indoor that fluidized wind 231 enters to external bed by bell-jar fluidization hood 22, the high temperature circulation particle that level rotary flow falls by fluidized wind 231 sends into vertical fluidized circulation again, makes high temperature circulation particle and heating surface carry out heat exchange fully.According to practical experience, because each metope in the empty room of external bed has viscous effect to high-temperature particle, therefore the fluid effect of the central area of the empty room of external bed is significantly better than sidewall areas, therefore the Fluidization wind rate can strengthened near the empty room flank wall of external bed and four corner walls of the bell-jar fluidization hood arrangement that provides of the present embodiment, reduce external bed empty room sidewall to the viscous effect of high temperature circulation particle, strengthen the abundant heat exchange of high-temperature particle and heating surface thus make high temperature circulation particle realize better heat exchange.
The layout being not limited to above-mentioned fluidization hood of the present utility model, in another preferred embodiment of the utility model, bottom center portion in fluidized-bed combustion boiler external bed is communicated with 16 second wind transmission pipes, in second wind transmission pipe air outlet, place arranges 16 pipe with small pipe diameter fluidization hoods, be communicated with 16 second wind transmission pipes at edge, empty room, in second wind transmission pipe air outlet, place arranges 16 Large Diameter Pipeline fluidization hoods.Certainly, in order to better realize the fluidization of the empty locular wall side of external bed, the external bed shape concrete condition that the layout scenarios of external bed bottom fluidization blast cap adopts depending on fluidized-bed combustion boiler external bed whirlwind fluidization system.
Similarly, the blade number of the utility model to whirlwind stator does not also limit, and in other embodiments of the utility model, the number of whirlwind stator can be also 12, according to requirement of engineering, gets 8 or 12 under normal circumstances.
In an embodiment of the present utility model, refer to again shown in Fig. 2 and Fig. 4, in order to the high temperature circulation grain flux making high temperature circulation particle pipeline introduce is even, a wind pressure sensor 41 is installed additional on each first class airduct, to detect the fluidisation blast entering first class airduct in real time, ensure that the fluidisation blast entering four first class airducts is consistent, in other embodiments, each first class airduct also adds airduct control valve 42 and an airduct stop valve 43, the control of all airduct control valves and airduct stop valve and sensor signal can be sent into thermal control process device and carry out automatic wind pressure-controlled.
The above specific embodiment is not intended to limit the utility model.Those skilled in the art, not departing from the change or conversion done in spirit and scope of the present utility model, all belongs to protection domain of the present utility model, and the scope that the utility model is specifically protected is when being as the criterion depending on right.
Claims (10)
1. a fluidized-bed combustion boiler external bed whirlwind fluidization system, is applicable to first-class fluidized bed boiler external bed, it is characterized in that, described whirlwind fluidization system comprises:
Fluidized-bed combustion boiler external bed, its inside has been room;
At least four high temperature circulation particulate charge pipes, pass into high temperature circulation particle in described high temperature circulation particulate charge pipe;
At least four first class airducts, be arranged in the sidewall of described fluidized-bed combustion boiler external bed, formed with described empty room and be communicated with and be communicated in described high temperature circulation particulate charge pipe, the fluidized wind entering described first class airduct carries the high temperature circulation particle formation jet entering described high temperature circulation particulate charge pipe and is incident upon in described empty room, and each jet interactions forms eddy flow;
Multiple second wind transmission pipe, is vertically communicated in the bottom of described empty room, is sent in described empty room by the fluidized wind entering described second wind transmission pipe.
2. fluidized-bed combustion boiler external bed whirlwind fluidization system as claimed in claim 1, is characterized in that, described first class airduct be uniformly distributed be arranged at described fluidized-bed combustion boiler external bed sidewall in.
3. fluidized-bed combustion boiler external bed whirlwind fluidization system as claimed in claim 2, it is characterized in that, described first class airduct is horizontally placed in the top sidewall of described fluidized-bed combustion boiler external bed.
4. fluidized-bed combustion boiler external bed whirlwind fluidization system as claimed in claim 1, it is characterized in that, described first class airduct is provided with whirlwind stator near one end place of empty room.
5. fluidized-bed combustion boiler external bed whirlwind fluidization system as claimed in claim 4, it is characterized in that, described whirlwind stator is 8 or 12.
6. the fluidized-bed combustion boiler external bed whirlwind fluidization system as described in any one of claim 1 to 5, is characterized in that, the air outlet place of described second wind transmission pipe is provided with bell-jar fluidization hood.
7. fluidized-bed combustion boiler external bed whirlwind fluidization system as claimed in claim 6, it is characterized in that, the not congruent footpath of described bell-jar fluidization hood, arrange pipe with small pipe diameter fluidization hood in the air outlet place of the second wind transmission pipe being communicated in described empty room bottom center portion, arrange Large Diameter Pipeline fluidization hood in the air outlet place of the second wind transmission pipe being communicated in described empty room bottom margin.
8. fluidized-bed combustion boiler external bed whirlwind fluidization system as claimed in claim 7, it is characterized in that, described pipe with small pipe diameter fluidization hood and described Large Diameter Pipeline fluidization hood diameter ratio are 1.0:1.2.
9. the fluidized-bed combustion boiler external bed whirlwind fluidization system as described in any one of claim 1 to 5, is characterized in that, described first class airduct is provided with wind pressure sensor.
10. the fluidized-bed combustion boiler external bed whirlwind fluidization system as described in any one of claim 1 to 5, is characterized in that, described first class airduct is provided with airduct control valve and airduct stop valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420693256.0U CN204240346U (en) | 2014-11-18 | 2014-11-18 | Fluidized-bed combustion boiler external bed whirlwind fluidization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420693256.0U CN204240346U (en) | 2014-11-18 | 2014-11-18 | Fluidized-bed combustion boiler external bed whirlwind fluidization system |
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| Publication Number | Publication Date |
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| CN204240346U true CN204240346U (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420693256.0U Withdrawn - After Issue CN204240346U (en) | 2014-11-18 | 2014-11-18 | Fluidized-bed combustion boiler external bed whirlwind fluidization system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650629A (en) * | 2016-02-24 | 2016-06-08 | 东方电气集团东方锅炉股份有限公司 | Method for eliminating heat deviation of working medium of external heat exchanger |
| CN105674253A (en) * | 2014-11-18 | 2016-06-15 | 国家电网公司 | Cyclone fluidizing system for fluidized bed boiler external bed |
| CN111351030A (en) * | 2020-03-25 | 2020-06-30 | 济南黄台煤气炉有限公司 | Cyclone type airflow field combustion liquid state slag discharging multifunctional boiler |
-
2014
- 2014-11-18 CN CN201420693256.0U patent/CN204240346U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105674253A (en) * | 2014-11-18 | 2016-06-15 | 国家电网公司 | Cyclone fluidizing system for fluidized bed boiler external bed |
| CN105650629A (en) * | 2016-02-24 | 2016-06-08 | 东方电气集团东方锅炉股份有限公司 | Method for eliminating heat deviation of working medium of external heat exchanger |
| CN111351030A (en) * | 2020-03-25 | 2020-06-30 | 济南黄台煤气炉有限公司 | Cyclone type airflow field combustion liquid state slag discharging multifunctional boiler |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150401 Effective date of abandoning: 20180209 |