CN201000059Y - Anti-wear circulating fluid bed boiler - Google Patents
Anti-wear circulating fluid bed boiler Download PDFInfo
- Publication number
- CN201000059Y CN201000059Y CNU2007200038305U CN200720003830U CN201000059Y CN 201000059 Y CN201000059 Y CN 201000059Y CN U2007200038305 U CNU2007200038305 U CN U2007200038305U CN 200720003830 U CN200720003830 U CN 200720003830U CN 201000059 Y CN201000059 Y CN 201000059Y
- Authority
- CN
- China
- Prior art keywords
- air
- air chamber
- coal
- chamber
- combustion
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model relates to an abrasion proof circulation fluidized bed boiler. The utility model comprises a combustion chamber, an air chamber, and an air delivery pipeline connected in the air chamber, a grid plate is arranged between the combustion chamber and an air chamber, a ventilation hole is arranged on the grid plate, a funnel cap is installed on the ventilation hole, the air chamber is divided into a strong fluidizing air chamber and a week fluidizing air chamber, the middle position of the air chamber is separated as the week fluidizing air chamber, the periphery of the air chamber is separated as the strong fluidizing air chamber, and the strong fluidizing air chamber and the week fluidizing air chamber are respectively connected with the air delivery pipeline. The improvement is simple and ingenious, the utility model changes the combustion state on the combustion chamber through the distribution and adjustment of the primary air, the abrasion of the coal to the water cooling wall of the combustion chamber is reduced or even avoided, the pipe bursting problem of the water cooling wall is solved, simultaneously the complete and full combustion of the coal is promoted, the thermal efficiency is greatly enhanced, and the purpose of the combustion of carbonaceous coal, middle coal, inferior coal and coal slack is really performed.
Description
Technical field
The utility model relates to a kind of improved abrasionproof CFBB.
Background technology
It is meager coal, middle coal, colm and gangue etc. that CFBB adapts to fire coal species, and ature of coal is harder, and weight is big, brings more serious wearing and tearing easily.Especially, enter the primary combustion wind mean allocation of combustion chamber, make the fire coal of air distribution plate top whereaboutss of in combustion process, outwards rolling, the just suitable water-cooling wall of coal-fired particle and descending, second-time burning wind blows afloat again against the wind, make coal-fired at emulsion zone formation eddy current, cause the heavy wear to the boiler furnace water-cooling wall, the water-cooling wall that has used less than three months will have only the benefit of stopping production pipe or replace tubes because of the serious wear booster behind the booster, the loss that once stops production is up to a million, costly.
The utility model content
The purpose of this utility model is to provide a kind of abrasionproof CFBB, can distribute wind well one time, reduces coal-fired wearing and tearing to the combustion chamber water-cooling wall, promotes coal-fired completing combustion, improves the thermal efficiency.
Abrasionproof CFBB described in the utility model, the air supply duct that comprises combustion chamber, air compartment and feeding air compartment, be provided with air distribution plate between combustion chamber and air compartment, be distributed with air vent on the air distribution plate, be fitted with blast cap on the air vent, it is characterized in that air compartment is divided into high current wind transmission chamber and weak current wind transmission chamber at interval, the middle part of air compartment is spaced apart weak current wind transmission chamber, the peripheral intervals of air compartment is high current wind transmission chamber, and high current wind transmission chamber and weak current wind transmission chamber are communicated with air supply duct respectively.
By air compartment being divided at interval high current wind transmission chamber and weak current wind transmission chamber, coal-fired wind is redistributed in the combustion chamber, form strong fluidization regions at periphery, form weak fluidization regions in the zone of centre.In the fired coal combustion process, coal-fired particle can drop on weak fluidization regions from strong fluidization regions like this, and ecto-entad turns over; substantially avoided coal-fired particle to fall to the wearing and tearing of combustion chamber water-cooling wall; solve the booster problem of water-cooling wall well, prolonged the service life of water-cooling wall greatly, remarkable benefit.Simultaneously, in the fluidization regions, coal-fired in slow dropping process a little less than the centre of combustion chamber, prolonged burning time greatly, made the combustible in the coal ash have the more time burning fully, fully, because the prolongation of fluidisation time, the combustion chamber water-cooling wall is more to the absorption of heat, thermal efficiency height.
Form strong fluidization regions and weak fluidization regions in order to cooperate, air vent on the air distribution plate is done corresponding the improvement to be adjusted, bigger with the air vent on the air distribution plate of high current wind transmission chamber correspondence design, less with the design of the air vent on the air distribution plate of weak current wind transmission chamber correspondence, the corresponding ventilation of adjusting.The big air vent 1-4 row that preferably distributes is suitable.
In the utility model,, repeat no more about the concrete structure of air distribution plate, blast cap, furnace wall, water screen tube and air supply duct etc. is identical with existing fluidized-bed combustion boiler with application feature.
The utility model abrasionproof CFBB, improve simply ingenious, by a wind is distributed adjustment, changed the fired coal combustion situation in the combustion chamber, reduce even avoided coal-fired wearing and tearing, solved the booster problem of water-cooling wall the combustion chamber water-cooling wall, promoted simultaneously coal-fired fully, fully burning, improve the thermal efficiency greatly, also really played the purpose of burning meager coal, middle coal, colm and gangue.
Description of drawings
Fig. 1, the simple and easy schematic diagram of the utility model one embodiment cross section structure.
Fig. 2, air distribution plate structural representation.
Among the figure: 1, furnace wall 2, combustion chamber 3, blast cap 4, air distribution plate 5, weak current wind transmission chamber 6, high current wind transmission chamber 7,10, air quantity are regulated flashboard 8,9, air supply duct 11, space bar 12, big air vent 13, little air vent.
The specific embodiment
The utility model is described in further detail in conjunction with the foregoing description accompanying drawing.
As shown in the figure, abrasionproof CFBB described in the utility model, comprise combustion chamber 2, the air supply duct 8 of air compartment and feeding air compartment, 9, be provided with air distribution plate 4 between combustion chamber 2 and air compartment, be distributed with air vent on the air distribution plate 4, be fitted with blast cap 3 on the air vent, its air compartment is spaced apart high current wind transmission chamber 6 and weak current wind transmission chamber 5 by space bar 11, the middle part of air compartment is spaced apart weak current wind transmission chamber 5, the peripheral intervals of air compartment is high current wind transmission chamber 6, high current wind transmission chamber 6 and weak current wind transmission chamber 5 are communicated with air supply duct 8 respectively, 9, air supply duct 8, be respectively equipped with air quantity on 9 and regulate flashboard 7,10, be used to regulate air output, the big air vent 12 on the air distribution plate 4 of high current wind transmission chamber 6 correspondences, little air vent 13 on the air distribution plate 4 of weak current wind transmission chamber 5 correspondences, big air vent 12 is distributed with two rows.
Operating condition:
By the setting of high current wind transmission chamber 6 and weak current wind transmission chamber 5, and under the fit adjustment of air distribution plate 4 different air vents, coal-fired wind is redistributed in combustion chamber 2, formed strong fluidization regions, form weak fluidization regions in the zone of centre at periphery.In the combustion process; coal-fired particle can drop on weak fluidization regions from strong fluidization regions; ecto-entad turns over, and has avoided coal-fired particle to fall to the wearing and tearing of combustion chamber water-cooling wall, simultaneously substantially; a little less than the centre of combustion chamber in the fluidization regions; fire coal has prolonged burning time greatly in slow dropping process, make the combustible in the coal ash obtain more fully, burn fully; also help of the more absorptions of combustion chamber water-cooling wall, thermal efficiency height to heat.
Claims (3)
1, a kind of abrasionproof CFBB, the air supply duct that comprises combustion chamber, air compartment and feeding air compartment, be provided with air distribution plate between combustion chamber and air compartment, be distributed with air vent on the air distribution plate, be fitted with blast cap on the air vent, it is characterized in that air compartment is spaced apart high current wind transmission chamber and weak current wind transmission chamber, the middle part of air compartment is spaced apart weak current wind transmission chamber, the peripheral intervals of air compartment is high current wind transmission chamber, and high current wind transmission chamber and weak current wind transmission chamber are communicated with air supply duct respectively.
2, abrasionproof CFBB according to claim 1 is characterized in that the air vent on the air distribution plate of high current wind transmission chamber correspondence is big, and the air vent on the air distribution plate of weak current wind transmission chamber correspondence is little.
3, abrasionproof CFBB according to claim 2 is characterized in that big air vent is distributed with 1-4 row.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200038305U CN201000059Y (en) | 2006-12-22 | 2007-02-02 | Anti-wear circulating fluid bed boiler |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200620161661.3 | 2006-12-22 | ||
| CN200620161661 | 2006-12-22 | ||
| CNU2007200038305U CN201000059Y (en) | 2006-12-22 | 2007-02-02 | Anti-wear circulating fluid bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201000059Y true CN201000059Y (en) | 2008-01-02 |
Family
ID=39014464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200038305U Expired - Fee Related CN201000059Y (en) | 2006-12-22 | 2007-02-02 | Anti-wear circulating fluid bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201000059Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943402A (en) * | 2010-06-18 | 2011-01-12 | 中国神华能源股份有限公司 | Circulating fluidized bed boiler |
| CN102423625A (en) * | 2011-11-29 | 2012-04-25 | 南京龙玖环境工程有限公司 | Circulating fluidized bed flue gas desulfurization tower |
| CN107356115A (en) * | 2016-05-09 | 2017-11-17 | 镇江北新建材有限公司 | A kind of air-distribution device for improving boiling furnace combustion efficiency |
| CN109990270A (en) * | 2019-04-06 | 2019-07-09 | 骆姝颖 | A kind of fluidized-bed combustion boiler using coal gangue combustion |
-
2007
- 2007-02-02 CN CNU2007200038305U patent/CN201000059Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943402A (en) * | 2010-06-18 | 2011-01-12 | 中国神华能源股份有限公司 | Circulating fluidized bed boiler |
| CN102423625A (en) * | 2011-11-29 | 2012-04-25 | 南京龙玖环境工程有限公司 | Circulating fluidized bed flue gas desulfurization tower |
| CN107356115A (en) * | 2016-05-09 | 2017-11-17 | 镇江北新建材有限公司 | A kind of air-distribution device for improving boiling furnace combustion efficiency |
| CN109990270A (en) * | 2019-04-06 | 2019-07-09 | 骆姝颖 | A kind of fluidized-bed combustion boiler using coal gangue combustion |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102628590B (en) | Biomass circulating fluidized bed direct combustion apparatus | |
| CN102095195B (en) | Reburning type circulating fluidized bed boiler | |
| CN102537943A (en) | Horizontal type circulating fluidized bed boiler with horizontal cyclone separator | |
| CN2937851Y (en) | Biomass energy fuel boiler | |
| CN102927564A (en) | Method of reducing fly ash carbon content of circulating fluidized bed boiler | |
| CN106838890A (en) | A kind of fuel and the low emission CFBB of desulfurizing agent classification supply | |
| CN201000059Y (en) | Anti-wear circulating fluid bed boiler | |
| CN202613429U (en) | Biomass circulating fluidized bed direct-burning device | |
| CN102537942A (en) | Low-speed fluidized bed and lower-heating-value waste gas mixed burning device and method | |
| CN103697467B (en) | Method for coal slime combustion of circulating fluidized bed boiler | |
| CN101761922B (en) | Combustion process method for granular coal circulating fluidized bed boiler | |
| CN103604119A (en) | Circulating fluidized bed overgrate air distribution method and special-purpose boiler | |
| CN203082866U (en) | Fluid-reconstruction-based circulating fluidized bed boiler capable of controlling nitrogen oxide | |
| CN205299497U (en) | Hierarchical sorting combustion system of circulating fluidized bed fuel thickness | |
| CN201177367Y (en) | Boiler using paddy hull as fuel | |
| CN107084387A (en) | The low NOx Horizontal CFB Boilers of multipaths that a kind of flue gas strile-backs | |
| CN103104912A (en) | Circulating fluidized bed boiler for coal water slurry combustion | |
| CN206861513U (en) | The low NOx Horizontal CFB Boilers of multipaths that a kind of flue gas strile-backs | |
| CN103075728A (en) | Flow-reconstruction based circulating fluidized bed boiler for controlling nitric oxide | |
| CN2919034Y (en) | Natural circulation single fluidized bed boiler | |
| CN204962736U (en) | Horizontal circulating fluidized bed boiler of area bed material extrinsic cycle | |
| CN206488271U (en) | A kind of low emission CFBB of fuel and desulfurizing agent classification supply | |
| CN208794397U (en) | Overhead burner pulverized-coal fired boiler | |
| CN202973068U (en) | Fired water-coal-slurry circulating fluidized bed boiler | |
| CN202470044U (en) | Co-burning device for low-speed fluidized bed and low calorific value waste gases |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080102 Termination date: 20100202 |