CN206037021U - Biomass circulating fluid bed boiler sweeps cooling and broadcasts material device - Google Patents
Biomass circulating fluid bed boiler sweeps cooling and broadcasts material device Download PDFInfo
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- CN206037021U CN206037021U CN201621074613.0U CN201621074613U CN206037021U CN 206037021 U CN206037021 U CN 206037021U CN 201621074613 U CN201621074613 U CN 201621074613U CN 206037021 U CN206037021 U CN 206037021U
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- feed
- sowing groove
- silo
- broadcast
- sleeve
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Abstract
The utility model discloses a biomass circulating fluid bed boiler sweeps cooling and broadcasts material device, including the combustion chamber, the silo is broadcast to one side intercommunication of combustion chamber, the lower lateral wall of broadcasting the silo is opened and to be broadcast material wind gap A and to broadcast material wind gap B, broadcast material wind gap A and be located the below of broadcasting the silo entrance, broadcast material wind gap B and be arranged in the lower part of broadcasting the silo, broadcast silo and combustion chamber linking department, broadcast the silo the top around and the both sides overcoat have a sleeve, the sleeve with broadcast the cooling air spray tube that is equipped with circumference between the silo section of thick bamboo wall and distributes, the air -out orientation of cooling air spray tube is towards the combustion chamber, the sleeve with broadcast between a silo section of thick bamboo wall formation and cool off the plenum, be equipped with cooling air port on the sleeve. Has following advantage: fast -speed air current can avoid fuel to stop in broadcasting the silo, pile up and put up a bridge, guarantees the noncongestion of fuel, makes fuel distribute very uniformly at whole combustion bed face, guarantees fuel stable combustion, and the bed surface temperature is even, prevents the high temperature coking.
Description
Technical field
This utility model belongs to Sector of Cfb Boilers, and particularly a kind of biomass recirculating fluidized bed boiler blows
Sweep cooling material seeding device.
Background technology
Fossil fuel traditional at present can not meet the needs of human social development and central energy supply, with non-renewable energy
The gradually exhaustion of source resource, and the heavy pressure having resulted in ecological environment, make concern journey of the people to renewable and clean energy resource
Degree more and more higher.Biomass energy is the part in regenerative resource, is world's fourth largest energy, it has also become regenerative resource
In important research object.Biomass energy is internationally recognized clean energy resource, and exploitation biomass energy has far-reaching society to China
Meeting meaning and wide market prospect, for the fundamental realities of the country of China and biomass economy development level, biomass are directly fired
Burning technology is undoubtedly one of most simple and feasible mode of efficient utilization biomass energy.
The fuel tolerance of CFBB itself is wide, and load regulation range is big, easy to operate and low NOx drainage
The features such as, can the characteristic such as preferably adapted biomass fuel Gao Shui, low ash, burning be rapid, biomass fuel can be effectively improved
The efficiency of combustion of material, thus circulating fluidized bed technique be effective way that biomass are developed as clean energy resource it
One.
Conventional biomass fuel mainly has various agricultural wastes（Such as rice husk, cotton stalk, rice straw, wheat-straw and corn stalk
Deng）, forestry waste（Such as branch, timber, bark, sawdust etc.）And animal husbandry garbage（Such as chicken manure, duck excrement etc.）, due to this
A little fuel have variation, size is irregular, density is low, water content is high, easy early fire, easily blocking feed circuit the features such as, and by
In the particularity of biomass fuel, with seasonal variations, this causes people to fill in the feed of biomass fuel to biomass fuel composition
Install in meter, it is necessary to give enough attention in terms of conveying seriality and safety is improved.Otherwise easily cause feed arrangement
Blocking is burnt, and causes boiler plant run, it is necessary to carry out shutdown maintenance, cause the user economic loss and safety Gu
Consider.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of biomass recirculating fluidized bed boiler purging cooling and broadcasts
Material device, solves the blocking of biomass fuel circulating fluidized bed boiler material seeding device and nozzle exit area easily burns asking for deformation
Inscribe, realize material seeding device and fuel is smoothly transported to using purging wind at a high speed for burning interior, it is continuous reliably and with long-term to run, carry
High boiler load stability, with the high technical advantage of equipment good economy performance reliability.
For solving above-mentioned technical problem, the biomass recirculating fluidized bed boiler purging cooling material seeding dress that this utility model is provided
Put, it includes combustor, the side of the combustor is communicated with feed-sowing groove, and the lower wall of the feed-sowing groove is provided with material seeding outlet A
With material seeding outlet B, lower sections of the material seeding outlet A positioned at feed-sowing groove porch, material seeding outlet B are located at the middle and lower part of feed-sowing groove；
The joining place of the feed-sowing groove and combustor, the top of feed-sowing groove and sleeve, sleeve and feed-sowing groove barrel is cased with outside both sides in front and back
Between be provided with circumferentially distributed cooling wind jet pipe, cool down the air-out direction of wind jet pipe towards combustor, sleeve and feed-sowing groove barrel
Between formed cooling air compartment；The sleeve is provided with cooling air port.
Material seeding outlet A plays the purpose for carrying conveying fuel, prevents fuel accumulated plugging at the feed-sowing groove bridging；Material seeding wind
Fuel is sent into burning interior and is uniformly sowed by mouth B so that fuel prevents fuel in the indoor office of burning in burning interior homogenous combustion
Portion piles up, detonation, causes localized hyperthermia's coking, temperature when stably burning；The setting of cooling air compartment, is held in the mouth with combustor to feed-sowing groove
Meet place（Material seeding nozzle area）Effectively cooled down, prevent nozzle exit area to be subject to high temperature and deform；Cooling wind jet pipe in sleeve and
Effective support is formed between feed-sowing groove barrel, feed-sowing groove spout barrel is reinforced, is prevented which to be heated and is burnt deformation.
Preferably, the lower wall of the feed-sowing groove is provided with air distribution plate.High velocity air can be produced.
Preferably, the combustor is provided with overfire air device.Burning for fuel and burn enough air are provided.
Preferably, the lower wall of the feed-sowing groove, feed-sowing groove and combustor joining place damage steel plate using heat resistant and wear resistant
It is embedded in heat resistant and wear resistant castable.The structure arrangement can be prevented effectively from this region of conventional feed arrangement and be burnt by furnace high-temperature
Ruin the generation with fuel erosive wear, it is ensured that equipment long-term safety is continuously run.
After using above structure, biomass recirculating fluidized bed boiler of the present utility model purging cooling material seeding device with it is existing
Technology is compared, with advantages below：
1st, the air-flow of high speed can avoid fuel from stopping in the feed-sowing groove, pile up and put up a bridge, it is ensured that fuel it is unimpeded.
2nd, fuel uniformly can be sent out by high velocity air, make fuel be spread evenly across whole burning bed surface, it is ensured that combustion
Material is stable to burn, and bed surface temperature is uniform, prevents high-temperature coking.
3rd, high velocity air also acts as sealing effectiveness, effectively prevents heat smoke from playing a reversed role into feed-sowing groove and bringing accident potential.
4th, there is no traditional machine driving parts and components in feed-sowing groove, eliminate hidden danger easily stuck during operation, increased pot
Stove reliability of operation.
5th, before charging gear is all placed in feed-sowing groove, the simple to fuel system arrangement form of power plant is made, at the beginning of saving system
Investment.
Description of the drawings
Fig. 1 is this utility model structural representation；
A direction views of the Fig. 2 for Fig. 1.
Wherein：1st, combustor, 2, feed-sowing groove, 3, material seeding outlet A, 4, material seeding outlet B, 5, sleeve, 6, cooling wind jet pipe,
7th, cooling air port, 8, overfire air device, 9, steel plate, 10, castable.
Specific embodiment
Accompanying drawing is combined below by embodiment, and the utility model will be further described.
As shown in Figure 1-2, the biomass recirculating fluidized bed boiler purging cooling material seeding device that the present embodiment is provided, it includes
Combustor 1, the side of the combustor 1 are communicated with feed-sowing groove 2, and the lower wall of the feed-sowing groove 2 is provided with air distribution plate, the material seeding
The lower wall of groove 2 is also provided with material seeding outlet A3 and material seeding outlet B4, and the material seeding outlet A3 is located under 2 porch of feed-sowing groove
Side, material seeding outlet B4 are located at the middle and lower part of feed-sowing groove 2；The joining place of the feed-sowing groove 2 and combustor 1, the top of feed-sowing groove 2 and
It is cased with sleeve 5 in front and back outside both sides, between 2 barrel of sleeve 5 and feed-sowing groove, is provided with circumferentially distributed cooling wind jet pipe 6, cooling wind spray
The air-out direction of pipe 6 forms cooling air compartment towards combustor, between 2 barrel of sleeve 5 and feed-sowing groove；The sleeve 5 is provided with cold
But air port 7, the combustor 1 are provided with overfire air device 8.
The lower wall of the feed-sowing groove, feed-sowing groove and combustor joining place damage steel plate 9 using heat resistant and wear resistant and are embedded into
In heat resistant and wear resistant castable 10.
Fuel sends into feed-sowing groove from feed bin by stokehold feeding device, and material seeding outlet A is constituted with feed-sowing groove first half barrel
Isobaric air compartment, material seeding wind can produce high velocity air after air distribution plate, effectively carry conveying fuel, prevent fuel from taking in feed-sowing groove
Bridge accumulated plugging；Material seeding outlet B constitutes isobaric air compartment with feed-sowing groove lower half barrel, and material seeding wind is by air distribution plate in material seeding spout
Region produces high velocity air, and fuel feeding combustor is uniformly sowed.Cooling wind is introduced by cooling air port, cooling wind is by cold
But wind jet pipe exits into combustor at a high speed, and high speed cold wind effectively can be cooled down to material seeding nozzle area barrel, prevent which from receiving
Heat and burn deformation.
Claims (4)
1. a kind of biomass recirculating fluidized bed boiler purging cools down material seeding device, it is characterised in that：It includes combustor, the combustion
The side for burning room is communicated with feed-sowing groove, and the lower wall of the feed-sowing groove is provided with material seeding outlet A and material seeding outlet B, the material seeding wind
Mouth A is located at the lower section of feed-sowing groove porch, and material seeding outlet B is located at the middle and lower part of feed-sowing groove；The rank of the feed-sowing groove and combustor
The place of connecing, the top of feed-sowing groove and sleeve is cased with outside both sides in front and back, be provided with circumferentially distributed cooling between sleeve and feed-sowing groove barrel
Wind jet pipe, cools down the air-out direction of wind jet pipe towards combustor, forms cooling air compartment between sleeve and feed-sowing groove barrel；The set
Cylinder is provided with cooling air port.
2. biomass recirculating fluidized bed boiler purging according to claim 1 cools down material seeding device, it is characterised in that：It is described
The lower wall of feed-sowing groove is provided with air distribution plate.
3. biomass recirculating fluidized bed boiler purging according to claim 1 cools down material seeding device, it is characterised in that：It is described
Combustor is provided with overfire air device.
4. biomass recirculating fluidized bed boiler purging according to claim 1 cools down material seeding device, it is characterised in that：It is described
The lower wall of feed-sowing groove, feed-sowing groove and combustor joining place damage steel plate using heat resistant and wear resistant and are embedded into heat resistant and wear resistant cast
In material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621074613.0U CN206037021U (en) | 2016-09-23 | 2016-09-23 | Biomass circulating fluid bed boiler sweeps cooling and broadcasts material device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621074613.0U CN206037021U (en) | 2016-09-23 | 2016-09-23 | Biomass circulating fluid bed boiler sweeps cooling and broadcasts material device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206037021U true CN206037021U (en) | 2017-03-22 |
Family
ID=58296624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621074613.0U Active CN206037021U (en) | 2016-09-23 | 2016-09-23 | Biomass circulating fluid bed boiler sweeps cooling and broadcasts material device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206037021U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114484490A (en) * | 2022-01-17 | 2022-05-13 | 柏乡县热华能源科技有限公司 | Self-cooling direct-pushing feeding device suitable for biomass |
-
2016
- 2016-09-23 CN CN201621074613.0U patent/CN206037021U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114484490A (en) * | 2022-01-17 | 2022-05-13 | 柏乡县热华能源科技有限公司 | Self-cooling direct-pushing feeding device suitable for biomass |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 1216, danionggang Road, Jianggan District, Hangzhou City, Zhejiang Province, 310021 Patentee after: Xizi clean energy equipment manufacturing Co.,Ltd. Address before: 1216, danionggang Road, Jianggan District, Hangzhou City, Zhejiang Province, 310021 Patentee before: HANGZHOU BOILER GROUP Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |