CN205402650U - Large capacity bagasse fuel boiler - Google Patents
Large capacity bagasse fuel boiler Download PDFInfo
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- CN205402650U CN205402650U CN201620138192.7U CN201620138192U CN205402650U CN 205402650 U CN205402650 U CN 205402650U CN 201620138192 U CN201620138192 U CN 201620138192U CN 205402650 U CN205402650 U CN 205402650U
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- burner hearth
- flue
- economizer
- bagasse
- furnace
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Abstract
The utility model discloses a large capacity bagasse fuel boiler, including furnace and flue and drum, economizer and air heater are installed to the terminal vertical part of flue, and the furnace anterior segment is equipped with grate, bagasse tear ware, bellows, the horizontal membrane wall that is covered with all around of furnace, and the ranging back forms the furnace face arch, and furnace is provided with four group's overgrate airs and enters the mouth, the grate slope sets up, the top is equipped with the over heater in the furnace, two independent cavities are cut apart into to the terminal vertical part of flue on controlling width direction, economizer and air heater establish on the right side in the cavity. The utility model discloses it is high to solve current bagasse fuel boiler energy consumption, problem that use cost is high.
Description
Technical field
This utility model relates to biomass fuel equipment technical field, especially a kind of heavy duty boiler for the bagasse fuel that burns.
Background technology
Existing as in the middle of the biomass of biomass fuel boiler, bagasse is southern relatively broad and that price is relatively low biomass fuel, but, existing bagasse fuel boiler generally comprises burner hearth and burner hearth and drum, vertical flue after burner hearth exhanst gas outlet, burner hearth front lower portion is provided with fire grate, fire grate is arranged over bagasse and sows grass seeds by duster device, multiple bellows it are provided with bottom fire grate, vertical flue place is provided with economizer and air preheater, air-supply entrance is generally located at the top of burner hearth, owing to burner hearth front lower portion temperature is relatively low, and oxygen content is relatively low, cause that bagasse burning is insufficient, need the ignition temperature increasing in boiler furnace or increase catalyst to increase the process of nitrogen oxides in the steam discharged, energy consumption remains high always, use cost is significantly high.
Summary of the invention
Problem to be solved in the utility model is to provide a kind of Large Copacity bagasse fuel boiler, high to solve existing bagasse fuel boiler energy consumption, the problem that use cost is high.
In order to solve the problems referred to above, the technical solution of the utility model is: this Large Copacity bagasse fuel boiler includes the burner hearth of leading portion and the flue of back segment and drum, described flue end vertical portion is provided with economizer and air preheater, before described burner hearth, pars infrasegmentalis is provided with fire grate, described fire grate is arranged over bagasse and sows grass seeds by duster device, it is provided with bellows bottom described fire grate, described burner hearth cross section is square and surrounding is covered with fin panel casing, described fin panel casing is provided with totally two ten six closed circuits, the outlet of described upper furnace is protruded backward, the bottom of described fin panel casing extends inwardly to form described burner hearth face arch, described burner hearth Hou Qiang bottom is provided with three groups of secondary wind entrances, described burner hearth Hou Qiang top is provided with one group of secondary wind entrance；Described fire grate is obliquely installed, and described bagasse device of sowing grass seeds by duster has six, and described bellows are provided with ten and are evenly arranged in bottom described fire grate, and described fire grate is connected with ash bucket；Described burner hearth inner top is provided with steam, the position that the outlet of described upper furnace is protruded backward is provided with pendant superheater, horizontal flue place after described furnace outlet is uniformly provided with high temperature superheater and low temperature superheater, and the lower, transverse of described air flue horizontal part is provided with four flue-dust retainers；Described flue end vertical portion is divided into two independent chambers, described economizer and described air preheater to be located in the described chamber on right side along the width of left and right.
In technique scheme, more specifically scheme may is that described economizer is divided into high-temperature economizer and low-level (stack-gas) economizer two-stage, described air preheater is also classified into high-temperature air preheater and low-temperature air preheater two-stage, is disposed with high-temperature economizer described in a group in described flue end vertical portion, high-temperature air preheater described in two groups, low-level (stack-gas) economizer described in three groups and low-temperature air preheater described in a group.
Further: described low temperature superheater is multiloop superheater.
Owing to have employed technique scheme, this utility model compared with prior art has the advantages that
1, its cross section of the burner hearth of this Large Copacity bagasse fuel boiler is square and upper outlet is protruded backward, form ∏ type with flue, join and the fin panel casing of 26 closed circuits, make the water system Natural Circulation of boiler, add radiation of burner hearth heating surface area, reduce furnace exit temperature；The bottom of fin panel casing respectively forwardly and extends rearwardly to form front furnace face arch and rear arch, has delayed the rise time of bagasse especially cane powder, makes flame burn more abundant in lower furnace portion；The fire grate being obliquely installed, and the device of slag is blown with steam, and have one group of secondary wind entrance to be located at burner hearth front lower portion, being uniformly distributed and fully and oxygen mix of bagasse herein can be made, make the timely ignition of bagasse, coordinate the selection of other secondary wind entrance again, further increase the burning in flue gas of the bagasse powder, dramatically saves on energy consumption；
2, the Flue duct design of this Large Copacity bagasse fuel boiler becomes to be divided into two independent chambers along the width of left and right, both economizer coiled pipe length can have been shortened, strengthen its rigidity, be conducive to again arranging tube case of air preheater, in order to be connected with two Fans simultaneously；The superheater of this Large Copacity bagasse fuel boiler, adopts radiation and convection current to combine, repeatedly intersects mixing, in order to adjust superheater vapor (steam) temperature, minimizing thermal deviation flexibly；Horizontal flue lower, transverse is provided with four flue-dust retainers, it is possible to separated by the dust stratification on horizontal flue, and send device to send back in stove by wind to burn away, and improves boiler combustion efficiency, reduces use cost.
Accompanying drawing explanation
Fig. 1 is the front view of this utility model embodiment；
Fig. 2 is the sectional view of A-A and the B-B of Fig. 1；
Fig. 3 is the sectional view of the C-C of Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model embodiment is described in further detail:
This Large Copacity bagasse fuel boiler as shown in Figure 1, Figure 2, Figure 3 shows, it includes the burner hearth 6 of leading portion and the flue 13 of back segment and drum 9.Burner hearth 6 cross section is square and surrounding is covered with fin panel casing 7, and rear water wall top is provided with four groups at furnace outlet place, and the front wall of burner hearth 6 is provided with eight groups, and burner hearth 6 both walls is provided with three groups, and fin panel casing 7 is provided with totally two ten six closed circuits.Burner hearth 6 upper outlet is protruded backward, and the bottom of fin panel casing 7 extends inwardly to form burner hearth face arch 5, and burner hearth Hou Qiang bottom is provided with three groups of secondary wind entrances 18, and described burner hearth Hou Qiang top is provided with one group of secondary wind entrance 18.
Before burner hearth 6, pars infrasegmentalis is provided with fire grate 3, and fire grate 3 is arranged over bagasse and sows grass seeds by duster device 4, and wherein the secondary wind entrance 18 of burner hearth front lower portion is opened in bagasse and sows grass seeds by duster on device 4.Being provided with bellows 2 bottom fire grate 3, fire grate is obliquely installed, and tilts 5 ° from front to back, blows the device of slag with steam, utilize steam to remove the gred.Bagasse device 4 of sowing grass seeds by duster has six, and bellows 2 are provided with ten and are evenly arranged in bottom fire grate 3, and fire grate 3 is connected with ash bucket 1.
Burner hearth 6 inner top is provided with steam 8, the position that burner hearth 6 upper outlet is protruded backward is provided with pendant superheater 10, horizontal flue 13 place after burner hearth 6 outlet is uniformly provided with high temperature superheater 11 and low temperature superheater 12, and the lower, transverse of flue 13 horizontal component is provided with four flue-dust retainers 14.Low temperature superheater 12 is multiloop superheater, two-stage direct-contact desuperheater it is provided with between high temperature superheater 11 and pendant superheater 10, the outlet of these superheaters is provided with steam manifold, and steam manifold devises stop valve, personal steam valve, steam discharge of lighting a fire, backwash, relief valve and thermocouple seat, thermometer, Pressure gauge etc..Steam first separation system adopts cyclone separator, and second separator adopts 7 layer of 8 order 18# galvanized steel wire netting and the top separator of one layer of even steam vent plate composition of porous.
Flue 13 end vertical portion is divided into two independent chamber 13-1 and 13-2 along the width of left and right, and institute's economizer and air preheater are located in the chamber on right side.Economizer is divided into high-temperature economizer 15 and low-level (stack-gas) economizer 17 two-stage, air preheater is also classified into high-temperature air preheater 16 and low-temperature air preheater 19 two-stage, is disposed with one group of high-temperature economizer, 16, three groups of low-level (stack-gas) economizers 17 of 15, two groups of high-temperature air preheaters and one group of low-temperature air preheater 19 in flue 13-1 end vertical portion.
Claims (3)
1. a Large Copacity bagasse fuel boiler, including the burner hearth of leading portion and the flue of back segment and drum, described flue end vertical portion is provided with economizer and air preheater, before described burner hearth, pars infrasegmentalis is provided with fire grate, this fire grate is arranged over bagasse and sows grass seeds by duster device, it is provided with bellows bottom this fire grate, it is characterized in that: described burner hearth cross section is that inboard wall of burner hearth is square and surrounding is covered with fin panel casing, described fin panel casing is provided with totally two ten six closed circuits, the outlet of described upper furnace is protruded backward, the bottom of described fin panel casing extends inwardly to form described burner hearth face arch, described burner hearth Hou Qiang bottom is provided with three groups of secondary wind entrances, described burner hearth Hou Qiang top is provided with one group of secondary wind entrance；
Described fire grate is obliquely installed, and described bagasse device of sowing grass seeds by duster has six, and described bellows are provided with ten and are evenly arranged in bottom described fire grate, and described fire grate is connected with ash bucket；
Described burner hearth inner top is provided with steam, the position that the outlet of described upper furnace is protruded backward is provided with pendant superheater, horizontal flue place after described furnace outlet is uniformly provided with high temperature superheater and low temperature superheater, and the lower, transverse of described air flue horizontal part is provided with four flue-dust retainers；
Described flue end vertical portion is divided into two independent chambers, described economizer and described air preheater to be located in the described chamber on right side along the width of left and right.
2. Large Copacity bagasse fuel boiler according to claim 1, it is characterized in that: described economizer is divided into high-temperature economizer and low-level (stack-gas) economizer two-stage, described air preheater is also classified into high-temperature air preheater and low-temperature air preheater two-stage, is disposed with high-temperature economizer described in a group in described flue end vertical portion, high-temperature air preheater described in two groups, low-level (stack-gas) economizer described in three groups and low-temperature air preheater described in a group.
3. Large Copacity bagasse fuel boiler according to claim 1 and 2, it is characterised in that: described low temperature superheater is multiloop superheater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620138192.7U CN205402650U (en) | 2016-02-24 | 2016-02-24 | Large capacity bagasse fuel boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620138192.7U CN205402650U (en) | 2016-02-24 | 2016-02-24 | Large capacity bagasse fuel boiler |
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| Publication Number | Publication Date |
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| CN205402650U true CN205402650U (en) | 2016-07-27 |
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| CN201620138192.7U Active CN205402650U (en) | 2016-02-24 | 2016-02-24 | Large capacity bagasse fuel boiler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106765015A (en) * | 2016-12-22 | 2017-05-31 | 江联重工集团股份有限公司 | One kind prevents the biomass fluid bed boiler of low-temperature corrosion of air preheater and system |
-
2016
- 2016-02-24 CN CN201620138192.7U patent/CN205402650U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106765015A (en) * | 2016-12-22 | 2017-05-31 | 江联重工集团股份有限公司 | One kind prevents the biomass fluid bed boiler of low-temperature corrosion of air preheater and system |
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