CN106838889A - A kind of CFBB with interior circulation ash heat exchanger - Google Patents
A kind of CFBB with interior circulation ash heat exchanger Download PDFInfo
- Publication number
- CN106838889A CN106838889A CN201710070402.2A CN201710070402A CN106838889A CN 106838889 A CN106838889 A CN 106838889A CN 201710070402 A CN201710070402 A CN 201710070402A CN 106838889 A CN106838889 A CN 106838889A
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- interior circulation
- heat exchanger
- circulation ash
- ash
- room
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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
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The invention discloses a kind of CFBB with interior circulation ash heat exchanger, it is related to large circulating fluidized bed boiler burner hearth interior circulation ash hot swapping, equipment primary structure to include：Burner hearth 8, interior circulation ash heat exchanger 1, cyclone separator 10, interior circulation ash introduce room 3, interior circulation ash material return chamber 2, Heat Room 4, heat exchanger 7 and feed back passage 9.A kind of CFBB with interior circulation ash heat exchanger that the present invention is provided, the fluidized wind of heating surface and each room of inside of control interior circulation ash heat exchanger 1 in by arranging interior circulation ash heat exchanger 1, flexible arrangement interior circulation ash heat exchanger 1 in boiler inner moduleization effectively organizes the modes such as furnace high-temperature interior circulation ash directed flow, possess the ability that superheated steam and reheated steam are heated to 700 DEG C when meeting ultra supercritical CFBB underload, and ensure that boiler furnace bed temperature is in optimal combustion with reduced pollutants temperature range etc. and requires under different load.
Description
Technical field：
The present invention relates to Large Scale Circulating Fluidized Bed Combustion Technology, particularly large circulating fluidized bed boiler technology.
Background technology：
There is CFBB extensive fuel tolerance, good load adjustment ability and lime-ash to be easy to comprehensive
The advantages of utilization, is as a kind of very promising boiler form.And, since the eighties in 20th century, large-scale recycle stream
Fluidized bed boiler technology make good progress during maximization, and put into operation more than ten circulation of supercritical steam conditions both at home and abroad at present
Fluid bed station boiler, its highest vapor (steam) temperature is up to 591 DEG C.The characteristics of CFBB has low-temperature burning, its stove
Interior desulphurization and denitration is all relatively simple.But it is continuous with ultra supercritical CFBB steam parameter (temperature and pressure)
Improve, the superheat steam temperature and reheat steam temperature of the ultra supercritical CFBB in future may be up to 700 DEG C.
On the other hand, to simplify steam generator system, cost is reduced, following ultra supercritical CFBB may be not provided with external
Circulation ash heat exchanger.Thereby produce two urgent problems：How one keeps overheating steam temperature and again in underload
Hot vapour temperature.Because CFBB is in underrun, the flue-gas temperature of furnace outlet is usually less than 700 DEG C, therefore
Overheating steam temperature and reheat steam temperature cannot be heated to 700 DEG C by the superheater and reheater being arranged in behind furnace outlet.The second is
In the CFBB without external bed, burner hearth bed temperature can change and change with boiler load, so that off-target is low
Pollution combustion reference temperature.
The content of the invention：
The purpose of the present invention is exactly, in order to overcome the shortcomings of above-mentioned background technology, to propose that one kind can be to boiler interior circulation ash
The CFBB that trend is adjusted.
A kind of CFBB with interior circulation ash heat exchanger, including burner hearth 8, feed back passage 9, cyclone separator
10, at least one interior circulation ash heat exchanger 1, wherein the bottom air distribution plate area of burner hearth 8 account for the top cross-sectional area of burner hearth 8 40~
60%, bending section is arranged at the emulsion zone top of burner hearth 8, and bending section is 45~70 ° with the angle of horizontal direction, and the presence of bending section can
So that more interior circulation ashes enter interior circulation ash heat exchanger 1.When boiler normally runs, cyclone separator is carried along into by flue gas
10 most flying dusts, are separated in cyclone separator 10, form outer circulation ash.Outer circulation ash flows through outer circulation ash
Loop, burner hearth is returned by the outer circulation ash feedback outlet 8-2 of the bottom of burner hearth 8.During inner flue gas of the stove is flowed up, entrained portion
Divide material, can be descending along the wall of burner hearth 8 under gravity, form interior circulation ash.
Interior circulation ash heat exchanger 1 is arranged in the emulsion zone both sides of burner hearth 8, interior circulation ash heat exchanger 1 using modular construction
Bent using water screen tube form, liner castable refractory, the interior circulation ash in interior circulation ash heat exchanger 1 is grey by interior circulation heat
Outlet 1-1 or the cold ash outlet 1-2 of interior circulation enter feed back passage 9, then return to the close of burner hearth 8 by interior circulation ash feedback outlet 8-1
Phase region, the inside of interior circulation ash heat exchanger 1 can arrange superheater, reheater, evaporating heating surface or economizer surface.
Described a kind of CFBB with interior circulation ash heat exchanger, inside its described interior circulation ash heat exchanger 1
It is by 6 points of interior circulation ash dividing plate 5 and Heat Room dividing plate：Interior circulation ash material return chamber 2, interior circulation ash introduces room 3 and Heat Room 4, interior
Circulating ash enters interior circulation ash and introduces room 3 by interior circulation ash entrance 1-3, and interior circulation ash introduces the bottom of room 3 and interior circulation ash is returned
Material room 2 is communicated, and interior circulation ash is introduced room 3 and communicated by Heat Room ash inlet 6-1 and Heat Room 4, arrangement heat exchange in Heat Room 4
Device 7, heat exchanger 7 can be as superheater, reheater, evaporating heating surface or economizer surface, and interior circulation ash heat exchanger 1 can
It is used to make interior circulation ash when heat exchanger 7 need not be heated with single-sided arrangement heat exchanger 7, opposite side, returns to the close of burner hearth 8
Phase region, it is also possible to which bilateral arranges heat exchanger 7, in interior circulation ash when that need not heat heat exchanger 7, makes interior circulation ash from interior
The emulsion zone of burner hearth 8 is returned in the middle of circulation ash heat exchanger 1.
A kind of described CFBB with interior circulation ash heat exchanger, the larger heat exchange of its air distribution plate area
Room 4 uses the independent air feed of isobaric air compartment 11 in its bottom.When interior circulation ash heat exchanger 1 is internally divided into three rooms, interior circulation
Grey material return chamber 2 and interior circulation ash introduce room 3 using its bottom the independent air feed of isobaric air compartment 11, fluidized wind can be used air or
Flue gas after purification；When interior circulation ash heat exchanger 1 is internally divided into four rooms, in order to ensure normal fluidisation, interior circulation ash feed back
Room 2 and interior circulation ash introduce room 3 and carry out single blast cap air feed, i.e. each blast cap individually correspondence one using the high-pressure blast main pipe 12 of bottom
High-pressure blast pipe 14 of the root with a suspended body flowmeter, compressed air interface pipe 13 is provided with the sub- pipe 14 of high-pressure blast.Normally
During operation, the float in suspended body flowmeter is located between the 1/2~2/3 of suspended body flowmeter full scale, once find float highly
It is interval less than this, just illustrate that the blast cap has clogging, the valve that can be closed immediately on the sub- pipe 14 of high-pressure blast opens compression
The valve of air interface pipe 13, blows logical with compressed air by blast cap, is then shut off compressed air interface pipe 13, then open high-pressure blast
Sub- pipe 14, puts back into the blast cap.
The present invention is using in the flexible arrangement heating surface in the interior circulation ash heat exchanger 1 and control interior circulation ash heat exchanger 1
The mode of each room fluidized state, can effectively organize the directed flow of furnace high-temperature interior circulation ash.On the one hand in underload,
The heat exchange being arranged in interior circulation ash heat exchanger 1 is introduced into by by up to 800 DEG C near emulsion zone in stove of high-temperature internal circulation ash
Superheater or reheater in room 4, make superheater or reheater have larger heat transfer temperature difference, so that it is guaranteed that in underload,
The superheated steam and reheated steam of ultra supercritical CFBB is set to be heated to more than 700 DEG C, specific steam temperature is regarded
Boiler Steam parameter designing.On the other hand, it is interior in interior circulation ash heat exchanger 1 by decreasing or increasing when boiler load changes
The heating surface quantity of circulating ash heating, you can change the caloric receptivity of emulsion zone, maintains burner hearth close so as to reach under different load
The substantially invariable purpose of phase region temperature, is at optimal combustion with reduced pollutants temperature range.
How a kind of CFBB with interior circulation ash heat exchanger involved in the present invention is solved in recycle stream
Ensure that superheater and reheater outlet steam temperature reach design load during fluidized bed boiler underload, and without external heat exchanger recycle stream
How fluidized bed boiler ensures the problems such as emulsion zone temperature is in optimal combustion with reduced pollutants temperature range in stove in different load.
Brief description of the drawings：
Fig. 1 is the sectional view of the CFBB with interior circulation ash heat exchanger of the invention；
Fig. 2 is the A-A generalized sections of Fig. 1；
Fig. 3 is the sectional view of the interior circulation ash heat exchanger of embodiment 1；
Fig. 4 is the B-B generalized sections of Fig. 3；
Fig. 5 is the C-C generalized sections of Fig. 3；
Fig. 6 is the sectional view of the interior circulation ash heat exchanger of embodiment 2；
Fig. 7 is the D-D generalized sections of Fig. 6；
Fig. 8 is the E-E generalized sections of Fig. 6；
In above-mentioned figure：1 is interior circulation ash heat exchanger, 1-1 is exported for interior circulation heat is grey, 1-2 is the cold grey outlet of interior circulation, 1-
3 be interior circulation ash intake, 2 be interior circulation ash material return chamber, 3 be interior circulation ash introduce room, 4 be Heat Room, 5 be interior circulation ash every
Plate, 6 be Heat Room dividing plate, 6-1 be Heat Room ash inlet, 7 be heat exchanger, 8 be burner hearth, 8-1 be interior circulation ash feedback outlet, 8-
2 is the grey feedback outlet of outer circulation, 9 is feed back passage, 10 is cyclone separator, 11 is equipressure air compartment, 12 is high-pressure blast main pipe, 13 are
Compressed air interface pipe, 14 are high-pressure blast pipe.
Specific embodiment：
Below by embodiment, and with reference to accompanying drawing, technical scheme is described in further detail.
CFBB with inner-circulation heat exchanger of the present invention, including burner hearth 8, feed back passage 9, whirlwind point
From device 10, it includes at least one interior circulation ash heat exchanger 1.Interior circulation ash in the emulsion zone of burner hearth 8 is by interior circulation ash entrance
1-3 enters interior circulation ash heat exchanger 1, and interior circulation ash heat exchanger 1 is arranged in boiler bottom using modular construction, and interior circulation ash is changed
Heat Room 4 in hot device 1 can arrange superheater, reheater, economizer or evaporating heating surface, inside interior circulation ash heat exchanger 1
Whether the trend of interior circulation ash is guided by controlling each room to be in fluidized state, overheating steam temperature is ensured to reach underload
With reheat steam temperature and the purpose of flexible modulation bed temperature.
The invention will be further described with reference to the accompanying drawings and examples：
Embodiment 1
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, by interior circulation ash dividing plate 5 and Heat Room inside interior circulation ash heat exchanger 1
6 points of dividing plate is four rooms --- interior circulation ash material return chamber 2, interior circulation ash introduces room 3, Heat Room 4, and Heat Room 4 is arranged symmetrically in
Interior circulation ash material return chamber 2 and interior circulation ash introduce the both sides of room 3, and the independent air feed in each room can be using the flue gas after air or purification
Each room is fluidized.To ensure when CFBB underload overheating steam temperature and reheat steam temperature, during boiler design
Superheater or reheater can be arranged as heat exchanger 7 in Heat Room 4.
In boiler operatiopn underload, it is necessary to be heated to heat exchanger 7 using interior circulation ash, can just ensure that overheat is steamed
Vapour and reheat steam temperature reach 700 DEG C.Now, fluidize interior circulation ash introducing room 3 and Heat Room 4, interior circulation ash material return chamber 2
It is de-fluidized.For the interior circulation ash from the emulsion zone of burner hearth 8, due to interior circulation ash, material return chamber 2 is de-fluidized, and interior circulation ash can only be from
Interior circulation ash introduces the underflow of room 3 and enters Heat Room 4 by Heat Room ash inlet 6-1, heats heat exchanger 7, then overflow is in
The cold ash outlet 1-2 of circulation enters feed back passage 9, and the emulsion zone of burner hearth 8 is returned to by interior circulation ash feedback outlet 8-1；Followed due to interior
Ring ash is grey (more than 800 DEG C) from the emulsion zone of burner hearth 8 heat, so, after the heat exchanger 7 in Heat Room 4 is flowed through, it is ensured that
Overheating steam temperature or reheat steam temperature are increased to 700 DEG C.
And in boiler heavy-duty service, heat exchanger 7 is heated without using interior circulation ash, you can ensure overheat
Steam and reheat steam temperature reach design load.Now, fluidisation interior circulation ash material return chamber 2 and interior circulation ash introduce room 3, and exchange heat
Room 4 is de-fluidized.For the interior circulation ash from the emulsion zone of burner hearth 8, enter interior circulation ash from interior circulation ash entrance 1-3 and introduce room 3,
Again by bottom opening, underflow enters interior circulation ash material return chamber 2, and last overflow enters feed back by interior circulation heat ash outlet 1-1
Passage 9, the emulsion zone of burner hearth 8 is returned to by interior circulation ash feedback outlet 8-1.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, under different load, it is ensured that bed temperature is in optimal low stain
Combustion reference temperature, Heat Room 4 that can be in interior circulation ash heat exchanger 1 arranges evaporating heating surface, economizer surface or middle temperature
Superheater surface.When boiler bed temperature needs to improve, control interior circulation ash reduces pot without flow through the heating surface in Heat Room 4
Stove boiler circuit is absorbed heat, and the interior circulation ash temperature for returning to the emulsion zone of burner hearth 8 is improved, so as to help to lift the emulsion zone temperature of burner hearth 8
Degree.Now, fluidisation interior circulation ash material return chamber 2 and interior circulation ash introduce room 3, and Heat Room 4 is de-fluidized.Interior circulation ash will not pass through
Heat exchanger 7 in Heat Room 4, is returned directly to the emulsion zone of burner hearth 8.And when boiler bed temperature needs to reduce, make interior circulation ash
The heat exchanger 7 in Heat Room 4 is flowed through, increases the interior circulation ash temperature that boiler circuit caloric receptivity returns to the emulsion zone of burner hearth 8 to reduce
Degree, reduces bed temperature.Now, fluidisation interior circulation ash introduces room 3 and Heat Room 4, and interior circulation ash material return chamber 2 is de-fluidized.Inside follow
Ring ash will flow through Heat Room 4 and heat the emulsion zone that heat exchanger therein 7 returns burner hearth 8.
Also to ensure that normal fluidisation, except the larger Heat Room 4 of both sides air distribution plate area using its bottom etc.
Outside the pressure independent air feed of air compartment 11, interior circulation ash material return chamber 2 and interior circulation ash introduce high-pressure blast main pipe 12 single wind of the room 3 using bottom
Cap air feed, i.e. each blast cap piece sub- pipe 14 of high-pressure blast with a suspended body flowmeter of independent correspondence, on the sub- pipe 14 of high-pressure blast
It is provided with compressed air interface pipe 13.During normal operation, the float in suspended body flowmeter is located at the 1/2 of suspended body flowmeter full scale
Between~2/3, once finding that float is highly interval less than this, just illustrate that the blast cap has clogging, can immediately close height
Valve on pressure wind pipe 14, opens the valve of compressed air interface pipe 13, and blast cap is blown into logical with compressed air, is then shut off pressure
Contracting air interface pipe 13, then the sub- pipe 14 of high-pressure blast is opened, put back into the blast cap.
Interior circulation ash heat exchanger 1 is arranged by large circulating fluidized bed boiler inner moduleization, large-scale recycle stream can be made
Fluidized bed boiler is provided simultaneously with underload and ensures overheating steam temperature and the purpose such as reheat steam temperature and flexible modulation bed temperature.
Embodiment 2
As shown in Figure 1, Figure 2, shown in Fig. 6, Fig. 7, Fig. 8, difference from Example 1 is interior circulation ash in the present embodiment structure
By 6 points of interior circulation ash dividing plate 5 and Heat Room dividing plate it is three rooms inside heat exchanger 1 --- interior circulation ash material return chamber 2, interior circulation ash
Room 3, Heat Room 4, the independent air feed in each room are introduced, fluidized wind can be used the flue gas after air or purification.By controlling interior circulation
Grey material return chamber 2, interior circulation ash introduces the fluidized state of room 3 and Heat Room 4, and interior circulation ash can flow through interior circulation ash heat exchanger 1
The emulsion zone of burner hearth 8 is returned to after the heating heat exchanger 7 of Heat Room 4 of side, it is also possible to which the interior circulation ash material return chamber 2 from opposite side is straight
Connect the emulsion zone for returning to burner hearth 8.Remaining structure is same as Example 1.
Claims (3)
1. a kind of CFBB with interior circulation ash heat exchanger, including burner hearth (8), feed back passage (9), cyclone separator
(10), interior circulation ash heat exchanger (1), it is characterised in that：
Bending section is arranged at burner hearth (8) the emulsion zone top, and bending section is 45~70 ° with the angle of horizontal direction, on bending section
Interior circulation ash entrance (1-3) is offered, interior circulation ash feedback outlet (8-1) and outer circulation ash feedback outlet (8-2) lower edge are away from burner hearth (8)
Bottom air distribution plate is 400~600mm, and burner hearth is arranged in using modular construction by one to eight interior circulation ash heat exchanger (1)
(8) bottom furnace wall, the vertical outside wall surface and sloped top face of interior circulation ash heat exchanger (1) are bent and are laid using monowall tube
Castable refractory and formed, into interior circulation ash heat exchanger (1) high-temperature internal circulation ash by interior circulation heat ash export (1-1) or
Cold ash outlet (1-2) of interior circulation enters feed back passage (9), then the close phase of burner hearth (8) is returned to by interior circulation ash feedback outlet (8-1)
Arrangement fizzy mineral water heated surface bundle inside area, interior circulation ash heat exchanger (1)；
The interior circulation ash heat exchanger (1) is internal to be divided into interior circulation ash feed back by interior circulation ash dividing plate (5) and Heat Room dividing plate (6)
Room (2), interior circulation ash introduce room (3) and Heat Room (4), and interior circulation ash enters interior circulation ash by interior circulation ash entrance (1-3)
Introduce room (3), interior circulation ash introduces room (3) bottom and interior circulation ash material return chamber (2) is communicated, interior circulation ash introduces room (3) and passes through
The Heat Room ash inlet (6-1) and Heat Room (4) of Heat Room dividing plate (6) bottom are communicated, arrangement heat exchanger in Heat Room (4)
(7), heat exchanger (7) is as superheater, reheater, evaporating heating surface or economizer surface；
The air distribution plate of the Heat Room (4) uses the independent air feed of isobaric air compartment (11) in its bottom, interior circulation ash material return chamber (2)
High-pressure blast main pipe (12) the list blast cap air feed of room (3) using bottom, i.e. each blast cap individually correspondence one are introduced with interior circulation ash
With high-pressure blast pipe (14) for suspended body flowmeter, compressed air interface pipe (13) is provided with high-pressure blast pipe (14).
2. a kind of CFBB with interior circulation ash heat exchanger according to claim 1, it is characterised in that：Inside follow
Ring ash heat exchanger (1) bilateral arranges heat exchanger (7), and interior circulation ash returns to burner hearth (8) from the middle of interior circulation ash heat exchanger (1)
Emulsion zone.
3. a kind of CFBB with interior circulation ash heat exchanger according to claim 1, it is characterised in that：Inside follow
Ring ash heat exchanger (1) single-sided arrangement heat exchanger (7), interior circulation ash returns to burner hearth from the opposite side of interior circulation ash heat exchanger (1)
(8) emulsion zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710070402.2A CN106838889B (en) | 2017-02-09 | 2017-02-09 | A kind of circulating fluidized bed boiler of the interior circulation ash heat exchanger of band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710070402.2A CN106838889B (en) | 2017-02-09 | 2017-02-09 | A kind of circulating fluidized bed boiler of the interior circulation ash heat exchanger of band |
Publications (2)
| Publication Number | Publication Date |
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| CN106838889A true CN106838889A (en) | 2017-06-13 |
| CN106838889B CN106838889B (en) | 2019-09-27 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112661314A (en) * | 2020-12-31 | 2021-04-16 | 成都九翼环保科技有限公司 | Subcritical fluidized bed reactor and method for treating high-concentration organic waste liquid |
| CN112696665A (en) * | 2020-12-31 | 2021-04-23 | 华电国际电力股份有限公司天津开发区分公司 | Circulating fluidized bed boiler capable of quickly adjusting load lifting speed |
| CN112944332A (en) * | 2021-02-02 | 2021-06-11 | 清华大学 | Circulating ash heat storage system and method for optimizing deep peak shaving |
| CN114135865A (en) * | 2021-12-20 | 2022-03-04 | 重庆大学 | High-temperature ash storage device and circulating fluidized bed boiler provided with same |
| CN114396617A (en) * | 2021-12-03 | 2022-04-26 | 中国特种设备检测研究院 | Circulating fluidized bed boiler and circulating ash heat exchanger |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994022570A1 (en) * | 1993-04-05 | 1994-10-13 | A. Ahlstrom Corporation | Method and apparatus for circulating solid material in a fluidized bed reactor |
| JP2840458B2 (en) * | 1995-04-21 | 1998-12-24 | フォスター ホイーラー エナージア オサケ ユキチュア | Combined cycle power plant with circulating fluidized bed reactor |
| CN2376579Y (en) * | 1999-07-09 | 2000-05-03 | 中国科学院化工冶金研究所 | Two-stage circular bed refuse incineration boiler |
| JP2000304224A (en) * | 1999-04-16 | 2000-11-02 | Kawasaki Heavy Ind Ltd | Method and apparatus for recovering heat from fluidized bed |
| CN2515543Y (en) * | 2001-12-22 | 2002-10-09 | 浙江大学 | Material circulating device of cyclic fluidized bed boiler |
| CN1587803A (en) * | 2004-08-12 | 2005-03-02 | 广东亨达利水泥厂有限公司 | Burning device and process for oil shale fluidized bed |
| CN1884909A (en) * | 2006-07-10 | 2006-12-27 | 西安交通大学 | Internally circulating fluidized reburning device for fly ash based on high temperature separation |
| US20090293818A1 (en) * | 2006-05-10 | 2009-12-03 | Foster Wheeler Energia Oy | Fluidized Bed Heat Exchanger for a Circulating Fluidized Bed Boiler and a Circulating Fluidized Bed Boiler with a Fluidized Bed Heat Exchanger |
| CN101995016A (en) * | 2010-10-19 | 2011-03-30 | 重庆大学 | Circulating fluidized bed boiler device using low calorific value coal gangue for post ignition |
| CN102840577A (en) * | 2011-06-23 | 2012-12-26 | 中国科学院工程热物理研究所 | Circulation fluidized bed boiler having compact type external dual fluidized bed heat exchanger |
| CN102840578A (en) * | 2011-06-23 | 2012-12-26 | 中国科学院工程热物理研究所 | Compact parallel connection type external fluidized bed heat exchanger |
| CN204922961U (en) * | 2015-08-14 | 2015-12-30 | 东方电气集团东方锅炉股份有限公司 | Many air distribution plates fluidized bed boiler of in -band replacement calorimeter |
-
2017
- 2017-02-09 CN CN201710070402.2A patent/CN106838889B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994022570A1 (en) * | 1993-04-05 | 1994-10-13 | A. Ahlstrom Corporation | Method and apparatus for circulating solid material in a fluidized bed reactor |
| JP2840458B2 (en) * | 1995-04-21 | 1998-12-24 | フォスター ホイーラー エナージア オサケ ユキチュア | Combined cycle power plant with circulating fluidized bed reactor |
| JP2000304224A (en) * | 1999-04-16 | 2000-11-02 | Kawasaki Heavy Ind Ltd | Method and apparatus for recovering heat from fluidized bed |
| CN2376579Y (en) * | 1999-07-09 | 2000-05-03 | 中国科学院化工冶金研究所 | Two-stage circular bed refuse incineration boiler |
| CN2515543Y (en) * | 2001-12-22 | 2002-10-09 | 浙江大学 | Material circulating device of cyclic fluidized bed boiler |
| CN1587803A (en) * | 2004-08-12 | 2005-03-02 | 广东亨达利水泥厂有限公司 | Burning device and process for oil shale fluidized bed |
| US20090293818A1 (en) * | 2006-05-10 | 2009-12-03 | Foster Wheeler Energia Oy | Fluidized Bed Heat Exchanger for a Circulating Fluidized Bed Boiler and a Circulating Fluidized Bed Boiler with a Fluidized Bed Heat Exchanger |
| CN1884909A (en) * | 2006-07-10 | 2006-12-27 | 西安交通大学 | Internally circulating fluidized reburning device for fly ash based on high temperature separation |
| CN101995016A (en) * | 2010-10-19 | 2011-03-30 | 重庆大学 | Circulating fluidized bed boiler device using low calorific value coal gangue for post ignition |
| CN102840577A (en) * | 2011-06-23 | 2012-12-26 | 中国科学院工程热物理研究所 | Circulation fluidized bed boiler having compact type external dual fluidized bed heat exchanger |
| CN102840578A (en) * | 2011-06-23 | 2012-12-26 | 中国科学院工程热物理研究所 | Compact parallel connection type external fluidized bed heat exchanger |
| CN204922961U (en) * | 2015-08-14 | 2015-12-30 | 东方电气集团东方锅炉股份有限公司 | Many air distribution plates fluidized bed boiler of in -band replacement calorimeter |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112661314A (en) * | 2020-12-31 | 2021-04-16 | 成都九翼环保科技有限公司 | Subcritical fluidized bed reactor and method for treating high-concentration organic waste liquid |
| CN112696665A (en) * | 2020-12-31 | 2021-04-23 | 华电国际电力股份有限公司天津开发区分公司 | Circulating fluidized bed boiler capable of quickly adjusting load lifting speed |
| CN112696665B (en) * | 2020-12-31 | 2022-03-29 | 华电国际电力股份有限公司天津开发区分公司 | Circulating fluidized bed boiler capable of quickly adjusting load lifting speed |
| CN112661314B (en) * | 2020-12-31 | 2022-08-30 | 成都九翼环保科技有限公司 | Subcritical fluidized bed reactor and method for treating high-concentration organic waste liquid |
| CN112944332A (en) * | 2021-02-02 | 2021-06-11 | 清华大学 | Circulating ash heat storage system and method for optimizing deep peak shaving |
| CN112944332B (en) * | 2021-02-02 | 2023-05-23 | 清华大学 | Circulating ash heat storage system and method for optimizing depth peak shaving thereof |
| CN114396617A (en) * | 2021-12-03 | 2022-04-26 | 中国特种设备检测研究院 | Circulating fluidized bed boiler and circulating ash heat exchanger |
| CN114135865A (en) * | 2021-12-20 | 2022-03-04 | 重庆大学 | High-temperature ash storage device and circulating fluidized bed boiler provided with same |
| CN114135865B (en) * | 2021-12-20 | 2024-02-27 | 重庆大学 | High-temperature ash storage device and circulating fluidized bed boiler with same |
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| Publication number | Publication date |
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| CN106838889B (en) | 2019-09-27 |
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