CN107448931A - A kind of whirl wind gasified bed with turbulent structure - Google Patents
A kind of whirl wind gasified bed with turbulent structure Download PDFInfo
- Publication number
- CN107448931A CN107448931A CN201710677815.7A CN201710677815A CN107448931A CN 107448931 A CN107448931 A CN 107448931A CN 201710677815 A CN201710677815 A CN 201710677815A CN 107448931 A CN107448931 A CN 107448931A
- Authority
- CN
- China
- Prior art keywords
- whirlwind
- jet pipe
- turbulent structure
- air
- combustion chamber
- 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
-
- 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
- F23C10/02—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
-
- 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
- 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
- F23C10/20—Inlets for fluidisation air, e.g. grids; Bottoms
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2200/00—Details of gasification apparatus
- C10J2200/15—Details of feeding means
- C10J2200/152—Nozzles or lances for introducing gas, liquids or suspensions
-
- 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
- F23C2206/101—Entrained or fast fluidised bed
Abstract
A kind of whirl wind gasified bed with turbulent structure, including vaporizer, combustion chamber and turbulent structure etc..Turbulent structure includes whirlwind header includes jet pipe under jet pipe on a whirlwind and a whirlwind with some groups of sprays in whirlwind header, every group of spray is connected.Refractory material is laid with outside the whirlpool wind header and spray group of turbulent structure and between any jet pipe of spray group, makes the connection of turbulent structure and combustion chamber and forms streamlined connection with the connection in gasification ceiling portion.Nozzle angle α is 5 °≤α≤45 ° on vortex；The lower cant of the jet angle beta that is vortexed is 10 °≤β≤60 °.Jet pipe air-out rotation direction and the lower jet pipe air-out that is vortexed are oppositely oriented on vortex；The lower jet pipe air-out rotation direction that is vortexed and main blast cap air-out are oppositely oriented.Turbulent structure is arranged at aditus laryngis of the bottom of combustion chamber i.e. at the top of vaporizer.The present invention has the advantages that to strengthen disturbance and mixability, reduces flue gas particles carrying amount.
Description
Technical field
The present invention relates to a kind of whirl wind gasified bed with turbulent structure, for multicomponent, high-moisture, highly volatile fuel
Gasification, belongs to gasification combustion equipment field.
Background technology
Recirculating fluidized bed because it has the characteristics that fuel tolerance is wide, high combustion efficiency, in offal treatment also by
Favor.But simple outer circulation type combustion apparatus furnace binding is huge, initial cost is high.And simple internal-circulation type combustion apparatus is then
It is often complicated.To solve this problem, " a kind of combustion apparatus with cross-section variable circulating fluidized bed "（CN1305074A）Propose
A kind of burner hearth the air distribution plate of furnace bottom setting horse-hof shape spill distribution, passes through one similar to the contraction type combustion apparatus of gourd shape formula
The interior swirl effect of cloth wind is strengthened in the rotating Vortex effect of secondary wind and Secondary Air, realizes that inner-outer circulation has concurrently." a kind of eddy flow burns dress
Put "（CN 104848230 B）The eddy flow incinerator that a kind of burner hearth centre is wide, upper and lower both sides are narrow is proposed, it is reverse by two-stage
The setting of Secondary Air, eddy flow and disturbance inside intensifying device, improve and strengthen in material and circulate.
The content of the invention
It is an object of the invention to provide a kind of whirl wind gasified bed with turbulent structure, is strengthening disturbance and is mixing same
When, suppress air upflow particle carrying amount.
The present invention is achieved through the following technical solutions：
A kind of whirl wind gasified bed with turbulent structure, including vaporizer, the combustion chamber that is arranged on above vaporizer and it is arranged on gas
Change the primary air system of room bottom；The vaporizer includes the flaring wall and tapered wall for connecting setting from top to bottom；It is described
Primary air system includes the air compartment of bottom one time, the air compartment of side one time, air distribution plate and the main blast cap being located on air distribution plate, and is located at flaring wall
The crosswind cap of face bottom.The whirl wind gasified bed also includes the turbulent structure for being arranged on bottom of combustion chamber；The turbulent structure bag
Include whirlwind header includes jet pipe and one on a whirlwind with some groups of sprays in whirlwind header, every group of spray is connected
Jet pipe under individual whirlwind.Fire resisting is laid with outside the whirlpool wind header and spray group of turbulent structure and between any jet pipe of spray group
Material, make the connection of turbulent structure and combustion chamber and form streamlined connection with the connection in gasification ceiling portion.
In above-mentioned technical proposal, when the burning chamber cross-section is circular, the turbulent structure sets one group, the vortex
The whirlwind header of structure is to be circular layout.Some groups of spray equidistantly or waits central angle to set along ring whirl wind header 1.
In above-mentioned technical proposal, when the burning chamber cross-section is rectangle, the turbulent structure is at least provided with two groups, two groups
Turbulent structure is separately positioned at the top of the relative two side walls bottom in combustion chamber i.e. vaporizer at aditus laryngis, and two groups of whirlwinds
Header is arranged in parallel in same level.
In above-mentioned technical proposal, under the whirlwind air-out direction of jet pipe diagonally downward, jet pipe on the whirlwind
Air-out direction tilts upward.Angle α is 5 °≤α≤45 ° between jet pipe center line and horizontal plane on the vortex；Under the vortex
Angle β is 10 °≤β≤60 ° between jet pipe center line and horizontal plane.
In above-mentioned technical proposal, the air-out direction of jet pipe projects the rotation direction of formation in the horizontal plane under the whirlwind, with
The main blast cap air-out is oppositely oriented；The air-out direction of jet pipe projects rotation direction and the institute of formation in the horizontal plane on the whirlwind
The air-out for stating jet pipe under whirlwind is oppositely oriented.
The present invention has advantages below and beneficial effect：The setting of turbulent structure, enhance the disturbance in gasifier bed and thing
Material mixing；The air-flow of reverse rotation inhibits the particulate matter that air upflow carries；Streamlined connection reduces resistance and prevents that ash is heavy
Product.
Brief description of the drawings
Fig. 1 is a kind of whirl wind gasified bed schematic diagram with turbulent structure involved in the present invention.
Fig. 2 is turbulent structure when a kind of combustion chamber of whirl wind gasified bed with turbulent structure involved in the present invention is circle
A-A to arrangement schematic diagram.
Fig. 3 is turbulent structure when a kind of combustion chamber of whirl wind gasified bed with turbulent structure involved in the present invention is rectangle
A-A to arrangement schematic diagram.
Fig. 4 is turbulent structure schematic diagram involved in the present invention.
In figure：1- whirlwind headers；Jet pipe on 2- whirlwinds；Jet pipe under 3- whirlwinds；4- flaring walls；5- is gradually
Contracting wall；6- air distribution plates；The air compartment of 7- bottoms one time；The air compartment of 8- sides one time；The main blast caps of 9-；10- crosswind caps；11-, which is vortexed, to be tied
Structure；12- vaporizers；13- combustion chambers.
Embodiment
The embodiment and the course of work of the present invention are further described below in conjunction with the accompanying drawings.
The orientation such as upper, lower, left, right, front and rear in present specification term be based on position relationship shown in the drawings and
Establish.Accompanying drawing is different, then corresponding position relationship is also possible to change therewith, therefore can not be interpreted as with this to protecting model
The restriction enclosed.
As shown in figure 1, a kind of whirl wind gasified bed with turbulent structure, including vaporizer 12, it is arranged on the top of vaporizer 12
Combustion chamber 13 and be arranged on the primary air system of the bottom of vaporizer 12.Vaporizer 12 includes the flaring for connecting setting from top to bottom
Wall 4 and tapered wall 5, and at least two relative walls are that bottom is flaring wall 4 in four walls of vaporizer 12
Top is the variable section structure of tapered wall 5.That is, the left and right of vaporizer 12 or front and rear wall are that bottom is on flaring wall 4
Portion is the variable section structure of tapered wall 5, and remaining two relative walls are same structure or straight wall structure.First air system
System includes the air compartment 7 of bottom one time, the air compartment 8 of side one time, air distribution plate 6 and the main blast cap 9 being located on air distribution plate 6, and is located at flaring wall 4
The crosswind cap 10 of bottom.Main blast cap 9 is wind cap, is arranged in air distribution plate 6 by certain direction of rotation so that from the air compartment of bottom one time
The cloth wind direction that the ejection of 7 First airs entered forms rotate counterclockwise on horizontal plane or turned clockwise.And side First air
Cloth wind can be differently configured from the air compartment 7 of bottom one time independently of bottom First air cloth wind, the blast of air compartment 8 of side one time.The air-out direction of crosswind cap 10
Tilt upward, the disturbance formed in short transverse.
Due to the two-way disturbance of bottom First air and side First air, the material in vaporizer 12 easily carries out gasification with air-flow
Room 12, into the combustion chamber 13 of the top of vaporizer 12.To avoid the burden of subsequent cell, while reduce material（Ash）Loss, protect
Card gasifier bed 12 maintains enough solid thermal carriers, and the present invention is provided with turbulent structure 11 in the bottom of combustion chamber 13.The vortex
Structure 11 includes whirlwind header 1 includes a whirlwind with some groups of sprays in whirlwind header 1, every group of spray is connected
Jet pipe 3 under upper jet pipe 2 and a whirlwind.Whirlpool wind header 1 and spray the group outside of turbulent structure 11 and any spray of spray group
Refractory material is laid between pipe, makes the connection of turbulent structure 11 and combustion chamber 13 and is formed with the connection at the top of vaporizer 12
Streamlined connection, reduce resistance and prevent dust stratification.
As shown in Fig. 2 when the cross section of combustion chamber 13 is circular, the turbulent structure 11 sets one group, the knot that is vortexed
The whirlwind header 1 of structure 11 is circular layout in the bottom of combustion chamber 13 close to internal face.Some groups of spray is along ring whirl wind
Header 1 is equidistant or waits central angle to set.
When the cross section of combustion chamber 13 is rectangle, at least provided with two groups, two groups of turbulent structures 11 divide the turbulent structure 11
The relative two side walls bottom in combustion chamber 13 is not arranged on, and two groups of whirlwind headers 1 are arranged in parallel in same level
On.In embodiment as shown in Figure 3, the wall bottom of combustion chamber 13 4 is provided with turbulent structure 11.Some groups of spray edge
Whirlwind header 1 to be placed equidistant.
On the one hand in order to strengthen disturbance and material mixing, on the other hand in order to prevent ash to be carried out vaporizer 12, it is vortexed
Diagonally downward, and the air-out direction of jet pipe 3 projects the rotation of formation to the air-out direction of jet pipe 3 in the horizontal plane under whirlwind under wind
To oppositely oriented with the main air-out of blast cap 9.That is, if the main cloth wind rotation direction of blast cap 9 is counterclockwise, the then air-out of jet pipe 3 under whirlwind
Rotation direction is clockwise；Conversely, such as main cloth wind rotation direction of blast cap 9 is clockwise, then the air-out rotation direction of jet pipe 3 is counterclockwise under whirlwind.
The one side of jet pipe 2 is the air distribution of combustion chamber 13 on whirlwind, to entrained particle while on the other hand further strengthening mixed effect
Thing carries to form inhibitory action, and the air-out direction of jet pipe 2 tilts upward on whirlwind, and on whirlwind jet pipe 2 air-out direction
Project in the horizontal plane formation rotation direction and jet pipe 3 under whirlwind air-out it is oppositely oriented.
As shown in figure 4, the upper inclination angle of jet pipe 2 that is vortexed, that is, the upper angle α between the center line of jet pipe 2 and horizontal plane that is vortexed is 5 °
≤α≤45°；Be vortexed the lower inclination angle of jet pipe 3, that is, the lower angle β between the center line of jet pipe 3 and horizontal plane that is vortexed is 10 °≤β≤60 °.
Because the whirl wind gasified fluid bed is used for multicomponent, high-moisture, highly volatile fuel, calorific value is relatively low, vaporizer 12
Wall, including flaring wall 4 and tapered wall 5 be metallic plate or water-cooling wall laying refractory material double-decker, metal
Plate or water-cooling wall are arranged on outside.The structure of internal layer refractory material can play a part of accumulation of heat gasification.
Claims (6)
1. a kind of whirl wind gasified bed with turbulent structure, including vaporizer（12）, be arranged on vaporizer（12）The combustion chamber of top
（13）Be arranged on vaporizer（12）The primary air system of bottom；The vaporizer（12）Including connecting setting from top to bottom gradually
Expanding wall face（4）And tapered wall（5）；The primary air system includes the air compartment of bottom one time（7）, the air compartment of side one time（8）, air distribution plate and
The main blast cap being located on air distribution plate（9）, and it is located at flaring wall（4）The crosswind cap of bottom（10）, it is characterised in that：The eddy flow
Gasifier bed also includes being arranged on combustion chamber（13）The turbulent structure of bottom（11）；The turbulent structure（11）Including whirlwind header
（1）With connect in whirlwind header（1）On some groups of sprays, every group of spray include jet pipe on a whirlwind（2）With one
Jet pipe under whirlwind（3）.
A kind of 2. whirl wind gasified bed with turbulent structure according to claim 1, it is characterised in that：The combustion chamber（13）
When cross section is circular, the turbulent structure（11）One group is set, the turbulent structure（11）Whirlwind header（1）For annular
Arrangement.
A kind of 3. whirl wind gasified bed with turbulent structure according to claim 1, it is characterised in that：The combustion chamber（13）
When cross section is rectangle, the turbulent structure（11）At least provided with two groups, two groups of turbulent structures（11）It is separately positioned on combustion chamber
（13）Relative two side walls bottom, and two groups of whirlwind headers（1）It is arranged in parallel in same level.
A kind of 4. whirl wind gasified bed with turbulent structure according to claim 1, it is characterised in that：Sprayed under the whirlwind
Pipe（3）Air-out direction diagonally downward, jet pipe on the whirlwind（2）Air-out direction tilt upward.
A kind of 5. whirl wind gasified bed with turbulent structure according to claim 1 or 4, it is characterised in that：On the vortex
Jet pipe（2）Angle α is 5 °≤α≤45 ° between horizontal plane；Jet pipe under the vortex（3）Angle β is 10 ° between horizontal plane
≤β≤60°。
A kind of 6. whirl wind gasified bed with turbulent structure according to claim 1 or 4 or 5, it is characterised in that：The vortex
Jet pipe under wind（3）Air-out direction project the rotation direction of formation in the horizontal plane, with the main blast cap（9）Air-out is oppositely oriented；Institute
State jet pipe on whirlwind（2）Air-out direction project the rotation direction of formation and jet pipe under the whirlwind in the horizontal plane（3）Go out
Wind is oppositely oriented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710677815.7A CN107448931B (en) | 2017-08-10 | 2017-08-10 | A kind of whirl wind gasified bed with turbulent structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710677815.7A CN107448931B (en) | 2017-08-10 | 2017-08-10 | A kind of whirl wind gasified bed with turbulent structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107448931A true CN107448931A (en) | 2017-12-08 |
| CN107448931B CN107448931B (en) | 2019-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710677815.7A Active CN107448931B (en) | 2017-08-10 | 2017-08-10 | A kind of whirl wind gasified bed with turbulent structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112254139A (en) * | 2020-11-05 | 2021-01-22 | 北京一亚高科能源科技有限公司 | Gasification-combustion zone serial TFB incinerator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1305074A (en) * | 2001-02-28 | 2001-07-25 | 清华大学 | Combustion apparatus with cross-section variable circulating fluidized bed |
| JP2002372217A (en) * | 2001-06-15 | 2002-12-26 | Goro Takagi | Turning combustion type fluidized bed incinerator |
| CN202835341U (en) * | 2012-07-06 | 2013-03-27 | 广东电网公司电力科学研究院 | Differential rotational flow air distribution device for biomass fuel fluidized bed |
| EP2687783A1 (en) * | 2011-03-18 | 2014-01-22 | Mitsubishi Heavy Industries Environmental & Chemical Engineering Co., Ltd. | Combustion device |
| CN104848230A (en) * | 2015-05-31 | 2015-08-19 | 北京四维天拓技术有限公司 | Cyclone incinerator |
-
2017
- 2017-08-10 CN CN201710677815.7A patent/CN107448931B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1305074A (en) * | 2001-02-28 | 2001-07-25 | 清华大学 | Combustion apparatus with cross-section variable circulating fluidized bed |
| JP2002372217A (en) * | 2001-06-15 | 2002-12-26 | Goro Takagi | Turning combustion type fluidized bed incinerator |
| EP2687783A1 (en) * | 2011-03-18 | 2014-01-22 | Mitsubishi Heavy Industries Environmental & Chemical Engineering Co., Ltd. | Combustion device |
| CN202835341U (en) * | 2012-07-06 | 2013-03-27 | 广东电网公司电力科学研究院 | Differential rotational flow air distribution device for biomass fuel fluidized bed |
| CN104848230A (en) * | 2015-05-31 | 2015-08-19 | 北京四维天拓技术有限公司 | Cyclone incinerator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112254139A (en) * | 2020-11-05 | 2021-01-22 | 北京一亚高科能源科技有限公司 | Gasification-combustion zone serial TFB incinerator |
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| Publication number | Publication date |
|---|---|
| CN107448931B (en) | 2019-02-22 |
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Address after: Room 205, 2F, Building B, Tsinghua University Research Complex, Haidian District, Beijing 100084 Patentee after: Beijing hengran Technology Co.,Ltd. Address before: Room 205, 2F, Building B, Tsinghua University Research Complex, Haidian District, Beijing 100084 Patentee before: BEIJING ONE-A HI-TECH ENERGY TECHNOLOGY Co.,Ltd. |
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