CN201547760U - Water-cooled flue gas generator - Google Patents
Water-cooled flue gas generator Download PDFInfo
- Publication number
- CN201547760U CN201547760U CN2009200823003U CN200920082300U CN201547760U CN 201547760 U CN201547760 U CN 201547760U CN 2009200823003 U CN2009200823003 U CN 2009200823003U CN 200920082300 U CN200920082300 U CN 200920082300U CN 201547760 U CN201547760 U CN 201547760U
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- water
- cooled
- flue gas
- gas generator
- pin
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Abstract
The utility model discloses a water-cooled flue gas generator which is used for generating high temperature thermal flue gas during ignition of a circulating fluidized bed boiler. The characteristics of the water-cooled flue gas generator are as follows: a water-cooled pin tube ring is arranged in a fire-resistant layer of a general high temperature thermal flue gas generator which is mostly used during ignition of the circulating fluidized bed boiler; the pin welded on the water-cooled pin tube ring can firmly grab the refractory material to prevent the refractory material from falling off. The water-cooled flue gas generator comprises the water-cooled pin tube ring, a shell, an inner tube, the fire-resistant layer, an adjusting damper, an observation hole, an oil burner, a wind chamber, a cooled water outlet, a ring-shaped duct, a mixed-air outlet, a cooled water inlet, a flame-detecting probe, and a high-energy ignition device. The water-cooled flue gas generator not only keeps the advantages of easy controlling of amount of flue gas and temperature and flexible adjusting for the general thermal flue gas generator, but also solves the problem that the refractory material of the inner tube easily falls off due to being burned down, and the maintenance of the fire-resistant layer is removed. The volume is small, the weight is light, and therefore, it is convenient for the water-cooled flue gas generator to support or hang. The series products with different flue gas amounts can be designed according to the capacity size of the boiler.
Description
Affiliated technical field
The utility model relates to a kind of device that is used for producing when the CFBB fluidization is lighted a fire the elevated temperature heat flue gas, can prevent that especially been provided with internal refractories from burning out a kind of hot smoke generator that comes off easily.
Background technology
At present, the high-temperature flue gas that needs during CFBB fluidization igniting is much all produced by hot smoke generator, is the exhaust gas volumn that produces because of hot smoke generator, and flue-gas temperature is controlled easily and regulated flexibly.Hot smoke generator is made up of inner core, shell, annular passage, the outlet of mixing wind, air compartment, damper, oil burner, high energy ignition unit, flame detecting probe, peephole, flame retardant coating.What have does not have an annular passage, exporting outside directly the outlet with mixing wind with annulus collection case at mixing wind joins, because there is not the cooling effect (acting on less) of annular passage, so increased the thickness of inner lining material, generally about 350mm, liner is made up of refractory material, insulation material and insulation material layer, so volume is heavy greatly again.The principle that the hot smoke generator of two kinds of forms produces high-temperature flue gas all is the same basically.Elder generation is by the mist of oil of high energy ignition unit point oil burner ejection, mix wind (wind of part that inserts separately) simultaneously from the outlet ejection, after mixing, the high-temperature flue gas that produces during with oil firing enters the air compartment of CFBB, mixed gas (also claiming hot flue gas) temperature generally is controlled at 850～900 ℃ (controlling by regulating oil mass and air quantity), mixed gas enters in the bed of CFBB by the blast cap inlet that is arranged in the air compartment top, make bed material (igniting with) fluidisation and be heated gradually and light, enter the operation that just stops hot smoke generator after normal coal supply moves when CFBB.Because this hot gas ignition mode is carried out under bed materials flow state, so homogeneous heating, easy control of temperature is regulated flexibly, and ignition success rate is very high.But because hot smoke generator internal heat load (volume heat load and cross section thermic load) is very high, so the hot smoke generator of these two kinds of forms all exists a refractory material in the tube to burn out easily to come off the problem that service work is frequent.
Summary of the invention
For burning out easily, the effective refractory material that solves in the hot smoke generator tube comes off the problem that service work is frequent.The utility model provides a kind of water-cooled hot smoke generator, it has not only kept general hot smoke generator exhaust gas volumn and easy control of temperature, regulate advantage flexibly, and can make refractory material obtain cooling and do not burnt out and come off, removed maintenance work from flame retardant coating.Because volume is little, in light weight, be convenient to support or hang.
The technical scheme that its technical problem that solves the utility model adopts is: water-cooled pin pipeloop is set in the inner core flame retardant coating, and (elder generation is water-cooled pin pipeloop fixedly, back cast castable refractory), the pin pipeloop is arranged along the cylinder length of inner core, the similar spring pipeloop of the monnolithic case of water-cooled pin pipeloop, its diameter equals the middle footpath of flame retardant coating, length equals the cylinder length of inner core, and this scope is the high-temperature region of inner core just.Cooling water adopts the feedwater of boiler, and feedwater is inserted by the inlet of pin pipeloop, introduces oxygen-eliminating device again behind the cooling refractory material.Because cooling water adopts the feedwater of boiler, pin pipeloop non flouling behaviour can be by oxygen corrosion yet, and cooling system is safe and reliable, on the other hand, introduces oxygen-eliminating device because of the heated water of cooling surface, and heat has also obtained utilization.Refractory material is effectively cooled off and do not burnt out; The pin that welds on the water-cooled pin-fin tube on the other hand, can catch refractory material that it can not come off firmly, especially at the inner core top that refractory material comes off easily, what weld on the pipe is " V " shape pin (other parts are straight shape pin), more reliable coming off of preventing refractory material.
The beneficial effects of the utility model are, the exhaust gas volumn and the easy control of temperature that have not only kept general hot smoke generator, regulate advantage flexibly, and the refractory material that has solved its inner core effectively burns out the problem that comes off easily, removed maintenance work from flame retardant coating; Also can reduce volume, reduce manufacturing expense.Owing to only increased water-cooled pin pipeloop, its structure is also fairly simple.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a layout drawing of the present utility model.
Fig. 2 is the structural map of embodiment.
Among Fig. 1, the 1. hot smoke generator of water-cooled, 2. air compartment, 3. bellows
Among Fig. 2,4. flame retardant coating, 5. damper, 6. peephole, 7. oil burner, 8. bellows, 9. coolant outlet, 10. annular passage, 11. mix wind outlet, 12. cooling water inlets, 13. flame detecting probe, 14. high energy ignition units, 15. water-cooled pin pipeloops, 16. shells, 17. inner cores
The specific embodiment
In Fig. 1, import at the air compartment (2) of CFBB is provided with two bellows (3), each bellows connects a hot smoke generator of water-cooled (1), the hot smoke generator of water-cooled (1) and air compartment (2) over against, make mixed gas travel longer, mix more abundant.A wind of CFBB enters bellows (3) to make things convenient for the layout of primary air system from the both sides of boiler.Fig. 1 is the arrangement form commonly used of the hot smoke generator of water-cooled, because the utility model volume is little, in light weight, be used for the general form (also can adopt supporting form) of hanging that adopts of boiler capacity the utility model below 410t/h, the employing supporting form that 410t/h is above.The hot exhaust gas volumn that the utility model produced, fuel consumption, mixing increases with the capacity of air quantity according to boiler, generally the utility model can be designed to series of products.
In embodiment illustrated in fig. 2, form the hot smoke generator of water-cooled by water-cooled pin pipeloop (15), shell (16), inner core (17), flame retardant coating (4), damper (5), peephole (6), oil burner (7), bellows (8), coolant outlet (9), annular passage (10), the outlet of mixing wind (11), cooling water inlet (12), flame detecting probe (13), high energy ignition unit (14).The simple and mechanical atomized oil gun of the general employing of oil gun in the oil burner (7), oil firing wind, enter oil burner (7) from oil gun with wind inlet, carry out the adjusting of air quantity by damper (5), totally 2 of dampers (5), be arranged in juxtaposition, one is used to regulate oil firing wind, and one is used to regulate mixed air volume.The size of oil mass is regulated by oily control valve; Mix wind and enter, mix with the high-temperature flue gas that oil firing is produced from mixing wind outlet (11) ejection, carry out the adjusting of air quantity by damper (5) through annular passage (10) back from mixing wind inlet.Adjusting by oil mass and air quantity during operation reaches desired temperature of igniting and exhaust gas volumn.Oil gun is with wind and mix wind and all inserted by an air channel, and air compartment is provided with dividing plate in (8), will mix wind respectively and oil gun separates with wind, and formation is passage independently separately.Cooling water (taking over from the feedwater piping of boiler) enters water-cooled pin pipeloop (15) by cooling water inlet (12), and flame retardant coating (4) cooling back is flowed out from coolant outlet (9), enters oxygen-eliminating device.
Claims (2)
1. one kind can prevent that the interior refractory material from being burnt out the hot smoke generator of the water-cooled that comes off, it is made up of water-cooled pin pipeloop, shell, inner core, flame retardant coating, damper, peephole, oil burner, air compartment, coolant outlet, annular passage, the outlet of mixing wind, cooling water inlet, flame detecting probe, high energy ignition unit, it is characterized in that: it is to set up water-cooled pin pipeloop in the flame retardant coating that uses more hot smoke generator inner core.
2. the hot smoke generator of water-cooled according to claim 1 is characterized in that establishing water-cooled pin pipeloop in the flame retardant coating of hot smoke generator inner core increases, and is welded with pin on the pipeloop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200823003U CN201547760U (en) | 2009-07-03 | 2009-07-03 | Water-cooled flue gas generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200823003U CN201547760U (en) | 2009-07-03 | 2009-07-03 | Water-cooled flue gas generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201547760U true CN201547760U (en) | 2010-08-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200823003U Expired - Fee Related CN201547760U (en) | 2009-07-03 | 2009-07-03 | Water-cooled flue gas generator |
Country Status (1)
| Country | Link |
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| CN (1) | CN201547760U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453547A (en) * | 2013-09-05 | 2013-12-18 | 哈尔滨锅炉厂有限责任公司 | Different-wall water-cooled wall structure and medium circulating method |
| CN104791779A (en) * | 2015-04-16 | 2015-07-22 | 无锡锡能锅炉有限公司 | Ignition-under-bed combustion device with air cooling structure for circulating fluidized bed boiler |
| CN107091527A (en) * | 2016-12-27 | 2017-08-25 | 四川川锅锅炉有限责任公司 | A kind of eccentric gaseous film control formula heat smoke generator |
| CN108488787A (en) * | 2018-05-22 | 2018-09-04 | 无锡锡能锅炉有限公司 | A kind of Fluidized Boiler Bed down-firing burner |
-
2009
- 2009-07-03 CN CN2009200823003U patent/CN201547760U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453547A (en) * | 2013-09-05 | 2013-12-18 | 哈尔滨锅炉厂有限责任公司 | Different-wall water-cooled wall structure and medium circulating method |
| CN104791779A (en) * | 2015-04-16 | 2015-07-22 | 无锡锡能锅炉有限公司 | Ignition-under-bed combustion device with air cooling structure for circulating fluidized bed boiler |
| CN107091527A (en) * | 2016-12-27 | 2017-08-25 | 四川川锅锅炉有限责任公司 | A kind of eccentric gaseous film control formula heat smoke generator |
| CN107091527B (en) * | 2016-12-27 | 2019-07-30 | 四川川锅锅炉有限责任公司 | A kind of bias gaseous film control formula hot fume generator |
| CN108488787A (en) * | 2018-05-22 | 2018-09-04 | 无锡锡能锅炉有限公司 | A kind of Fluidized Boiler Bed down-firing burner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20170703 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |