CN204005916U - Single step Steam generating furnace - Google Patents
Single step Steam generating furnace Download PDFInfo
- Publication number
- CN204005916U CN204005916U CN201420475385.2U CN201420475385U CN204005916U CN 204005916 U CN204005916 U CN 204005916U CN 201420475385 U CN201420475385 U CN 201420475385U CN 204005916 U CN204005916 U CN 204005916U
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- Prior art keywords
- heater
- steam generating
- single step
- generating furnace
- water
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model relates to Steam generating furnace field, particularly relates to single step Steam generating furnace.The utility model discloses a kind of single step Steam generating furnace, it comprises body of heater and burning bed, body of heater top is provided with charging aperture, described burning bed is positioned at body of heater chamber central authorities, oxygen enrichment puff prot is arranged at the mouth top of burning bed, the burned bed boundary in described body of heater chamber is gas fuel burning section and gasification of biomass section, and the body of heater of described gasification of biomass section is surrounded by water-cooling wall chuck, and described water-cooling wall chuck is provided with water inlet and steam (vapor) outlet.The utility model has improved biomass combustion utilization rate of heat value significantly, has reduced to greatest extent the thermal loss in energy transport, reduces environmental pollution and has obtained again considerable economic benefit, has a good application prospect.
Description
Technical field
The utility model relates to Steam generating furnace field, particularly relates to single step Steam generating furnace.
Background technology
Living beings mainly refer to the material such as the fowl and animal excrement in lignocellulosic (abbreviation lignin), farming industry leftover bits and pieces, agriculture and forestry organic waste material and the animal husbandry production process such as the stalk except grain, fruit, trees and discarded object in agriculture and forestry production process.
Biomass energy is the important energy source that the mankind depend on for existence always, and he is only second to coal, oil and natural gas and the energy that occupy the 4th of world energy sources total quantity consumed, in whole energy resource system, occupies critical role.China's biomass energy is very abundant, approximately 600,000,000 tons of whole nation agricultural crop straw year generations, about 300,000,000 tons can be used as fuel use, amount to approximately 1.5 hundred million tons of standard coals, forest branch and forestry waste year approximately 900,000,000 tons of Availabilities, about 300,000,000 tons can be used as using energy source, amount to approximately 200,000,000 tons of standard coals, and China's biomass resource can be exchanged into approximately 800,000,000 tons of standard coals of potentiality of the energy at present.
Gasification of biomass refers to by biomass gasifying furnace biomass fuel is converted into combustible gas, it is extensive use, but technical also Shortcomings, as low in the biological fuel gas utilization rate of heat value of the gained that gasifies, little medium-sized biomass power generation system gross efficiency only has 25%～35%, (comparison such as analysis such as biomass generation such as grade of Wu's wound, regenerative resource, 200826 (3) 34-37); In combustion gas, tar content is high, causes rear system jams and corrosion etc., and these have seriously limited the application of Biomass Gasification Power Generation Technology.
Utility model content
The purpose of this utility model is exactly to solve the problem that above-mentioned prior art occurs, a kind of single step Steam generating furnace is provided.
For this reason, the utility model discloses a kind of single step Steam generating furnace, it comprises body of heater and burning bed, body of heater top is provided with charging aperture, described burning bed is positioned at body of heater chamber central authorities, and oxygen enrichment puff prot is arranged at the mouth top of burning bed, and the burned bed boundary in described body of heater chamber is gas fuel burning section and gasification of biomass section, the body of heater of described gasification of biomass section is surrounded by water-cooling wall chuck, and described water-cooling wall chuck is provided with water inlet and steam (vapor) outlet.
When innovative point of the present utility model is the utility model use, on working temperature, height bends down (upper: 1100～1200 ℃ of gas fuel burning sections, under: 900～1000 ℃ of gasification of biomass sections), be different from prior art low high (100～250 ℃ of drying layers on updraft type fixed-bed gasification furnace completely, 300～800 ℃ of pyrolytic layers, 900 ℃ of reducing zones, 1200 ℃ of oxide layers), gasification of biomass and fuel gas oxygen-enriched combusting are integrated to one, utilize gasification of biomass to produce fuel gas oxygen-enriched combusting, form high temperature, its a part of heat is supplied with the gasification of living beings quick high-temp, other heat heating working mediums, for generating or heating, guaranteed that heat utilization ratio is high, produce fuel gas tar content extremely low simultaneously, avoid the coking phenomenon that burns.
In certain embodiments, described burning bed is one can drive the grate structure rotating by compressed gas (1.2 more than atmospheric pressure), and its drives structure is similar to windmill, and compressed gas makes its generation torsion drive fire grate to rotate through fan blade.Its main purpose has three: the one, make the even destructive gasifying of energy block; The 2nd, by the control of gasification rate being carried out to the temperature of control combustion bed; The 3rd, filter reacted lime-ash, make it fall deslagging device, to remove.
In certain embodiments, between the body of heater of described gasification of biomass section and water-cooling wall chuck, be lined with the thermal-insulation anticorrosion heat-insulation layer that one deck 50mm is thick, make reaction zone heat loss, the evenly corrosion to furnace wall generation to water-cooling wall heat release and reactant, and solved by way of parenthesis the problem of expanding with heat and contract with cold of material.
In certain embodiments, described body of heater integral body is surrounded by water-cooling wall chuck, has realized the maximum utilization of heat.
In certain embodiments, in described burning bed edge, be deslagging device.
In certain embodiments, described steam outlet is equipped with bottom air damper.
In certain embodiments, it also comprises feeding system single step Steam generating furnace, and the discharging opening of described feeding system is positioned at institute's body of heater its top feed mouth top.
In certain embodiments, described single step Steam generating furnace also comprises drum, and described drum communicates with steam (vapor) outlet by jet chimney.
In certain embodiments, described body of heater is provided with manhole cover, so that operating repairs.
The utility model will be reacted into fuel gas and burning is merged in steps converting steam to, improved significantly biomass combustion utilization rate of heat value, reduced to greatest extent the thermal loss in energy transport, reduce environmental pollution and obtained again considerable economic benefit, have a good application prospect.
Accompanying drawing explanation
The structural representation of Fig. 1 single step Steam generating furnace.
The face of the overlooking structural representation of Fig. 2 single step Steam generating furnace.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the utility model.These embodiment are only not used in restriction scope of the present utility model for the utility model is described.The experimental technique of unreceipted actual conditions in the following example, conventionally according to normal condition or the condition of advising according to manufacturer.Unless otherwise indicated, otherwise all percentage and umber all by weight.
Unless otherwise defined, the familiar meaning of all specialties of using in literary composition and scientific words and one skilled in the art is identical.In addition, any method similar or impartial to described content and material all can be applicable in the utility model method.The use that better implementation method described in literary composition and material only present a demonstration.
As Fig. 1, shown in 2 (1, charge door, 2, drum, 3, body of heater and water leg, 4, bottom support, 5, feeding system, 6, raw material storage pond, 7, manhole cover, 8, spiral burning bed, 9, hydraulic pressure soot cleaning system, 10, intake oxygen enrichment mouth, 11, water inlet pipe, 12, jet chimney, 13, slip hopper, 14, plenum chamber center, 15, flame retardant coating, 16, ash chute), a kind of single step Steam generating furnace, it comprises body of heater and burning bed, body of heater top is provided with charging aperture, described burning bed is positioned at body of heater chamber central authorities, oxygen enrichment puff prot is arranged at the mouth top of burning bed, the burned bed boundary in described body of heater chamber is gas fuel burning section and gasification of biomass section, the body of heater of described gasification of biomass section is surrounded by water-cooling wall chuck, described water-cooling wall chuck is provided with water inlet and steam (vapor) outlet.Described burning bed is one can drive the grate structure rotating by compressed gas (1.2 more than atmospheric pressure), and its drives structure is similar to windmill, and compressed gas makes its generation torsion drive fire grate to rotate through fan blade.Between the body of heater of described gasification of biomass section and water-cooling wall chuck, be lined with the thermal-insulation anticorrosion heat-insulation layer that one deck 50mm is thick.
Depending on field condition and technique, need, this type of furnace can be with same stove according in operating process, and adjustments of gas reaction time, and water-cooling wall jacket steam discharges and water filling ratio is realized fuel gas and steam association or producing steam only.The time of staying of the fuel gas that i.e. increase reaction produces in stove, directly exothermic heat of reaction in stove, becomes the water in water-cooling wall chuck into steam.Specific operation process is as follows:
Take stalk as example, stalk is pressed into the energy block of prescribed level by compressor
1, energy block is delivered to furnace roof charging aperture by feeding system accumulator tank from underground zero time, by charging lock hopper by the program feeding stove setting in advance.Energy block will pass through gas fuel burning section (temperature is 1200 ℃) in the process falling, and moment falls on burning bed after super-dry, preheating.
2, the temperature on burning bed has reached 1000 ℃ above (temperature is by epimere gas combustion reaction gained).Bottom at burning bed, due to the mouth top of oxygen enrichment puff prot at burning bed, at it, around there is hardly energy block, and under the operating mode of middle and lower part (gasification of biomass section) energy block that drops on burning bed in high temperature, isolated air, energy block fusing destructive distillation.Destructive distillation gained gas main component is CO and H
2, and comprise CH
4.
3, burning bed of the present utility model is a grate structure that can be rotated by compressed gas (1.2 more than atmospheric pressure) driving, and its drives structure is similar to windmill, and compressed gas makes it produce torsion through fan blade and drives fire grate rotation.Its main purpose has three: the one, make the even destructive gasifying of energy block; The 2nd, by the control of gasification rate being carried out to the temperature of control combustion bed; The 3rd, filter reacted lime-ash, make it fall deslagging device, to remove.Burning bed edge is the deslagging devices such as ash pan, ash plough, and when lime-ash runs up to a certain degree, these devices just start lime-ash is discharged to outside stove.
4, whole gasification of biomass section body of heater is all surrounded by water-cooling wall chuck, between high temperature reaction zone and water-cooling wall, be lined with the thermal-insulation anticorrosion heat-insulation layer that one deck 50mm is thick, make reaction zone heat loss, the evenly corrosion to furnace wall generation to water-cooling wall heat release and reactant, and solved by way of parenthesis the problem of expanding with heat and contract with cold of material.
5, wireway
Bottom air damper is equipped with in water-cooling wall jacket steam exit, to guarantee the equilibrium of vapor stream amount.
In the situation that need to produce (as existing natural gas boiler) under the operating mode of fuel gas, reduce the time of staying of reacting gas, in gas reaction section, gas is drawn.The utility model does not relate to fuel gas is drawn, but increase the time of staying of fuel gas in body of heater, add oxygen enrichment (1.2～1.4 atmospheric pressure) and make its heat release of fully burning, heat conducts to the steam that the water heating in water-cooling wall chuck makes it to be gasificated into 2～3 kilograms of pressure;
Steam can be used for heating or generating, as steam through steam (vapor) outlet to screw rod decompressor, directly drive screw rod decompressor, screw expander direct drive generator generating.
According to the difference for the treatment of capacity, the type of furnace that has different-diameter is corresponding, and from two to three meter two of one meter in diameter not etc., supporting burner, steam generator, decompressor, generator are also thereupon different for the type of furnace.
By measurements and calculations, the combustion heat value utilization rate of stalk energy block is 40%～50%, higher than 25%～35% of prior art.
Scope of the present utility model is not subject to the restriction of described specific embodiments, and described embodiment is only wanted, as the single example of illustrating the utility model various aspects, also to comprise method and the component of functional equivalent within the scope of the utility model.In fact, except content as herein described, those skilled in the art can easily grasp multiple improvement of the present utility model with reference to description and accompanying drawing above.Within described improvement also falls into the scope of appended claims.Every piece of list of references mentioned above is listed in herein as a reference all in full.
Claims (10)
1. a single step Steam generating furnace, it comprises body of heater and burning bed, it is characterized in that institute's body of heater top is provided with charging aperture, described burning bed is positioned at body of heater chamber central authorities, oxygen enrichment puff prot is arranged at the mouth top of burning bed, the burned bed boundary in described body of heater chamber is gas fuel burning section and gasification of biomass section, and the body of heater of described gasification of biomass section is surrounded by water-cooling wall chuck, and described water-cooling wall chuck is provided with water inlet and steam (vapor) outlet.
2. single step Steam generating furnace as claimed in claim 1, is characterized in that described burning bed is spiral burning bed.
3. single step Steam generating furnace as claimed in claim 2, is characterized in that described spiral burning bed is for being driven the grate structure rotating by compressed gas.
4. single step Steam generating furnace as claimed in claim 1, is characterized in that being lined with one deck thermal-insulation anticorrosion heat-insulation layer between the body of heater of described gasification of biomass section and water-cooling jacket.
5. single step Steam generating furnace as claimed in claim 1, is characterized in that described body of heater integral body surrounded by water-cooling wall chuck.
6. single step Steam generating furnace as claimed in claim 1, is characterized in that described burning bed edge is deslagging device.
7. single step Steam generating furnace as claimed in claim 1, is characterized in that described steam outlet is equipped with bottom air damper.
8. single step Steam generating furnace as claimed in claim 1, is characterized in that it also comprises feeding system, and the discharging opening of described feeding system is positioned at institute's body of heater its top feed mouth top.
9. single step Steam generating furnace as claimed in claim 1, is characterized in that it also comprises drum, and described drum communicates with steam (vapor) outlet by jet chimney.
10. single step Steam generating furnace as claimed in claim 1, is characterized in that described body of heater is provided with manhole cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420475385.2U CN204005916U (en) | 2014-08-21 | 2014-08-21 | Single step Steam generating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420475385.2U CN204005916U (en) | 2014-08-21 | 2014-08-21 | Single step Steam generating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204005916U true CN204005916U (en) | 2014-12-10 |
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ID=52045914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420475385.2U Withdrawn - After Issue CN204005916U (en) | 2014-08-21 | 2014-08-21 | Single step Steam generating furnace |
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| Country | Link |
|---|---|
| CN (1) | CN204005916U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104152182A (en) * | 2014-08-21 | 2014-11-19 | 潘凡峰 | Biomass gasification power generation method |
-
2014
- 2014-08-21 CN CN201420475385.2U patent/CN204005916U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104152182A (en) * | 2014-08-21 | 2014-11-19 | 潘凡峰 | Biomass gasification power generation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141210 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |