CN103900113B - The solid particle fuel gasification combustor of efficient noncoking - Google Patents

The solid particle fuel gasification combustor of efficient noncoking Download PDF

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Publication number
CN103900113B
CN103900113B CN201410091972.6A CN201410091972A CN103900113B CN 103900113 B CN103900113 B CN 103900113B CN 201410091972 A CN201410091972 A CN 201410091972A CN 103900113 B CN103900113 B CN 103900113B
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combustion
gasification
core
gas
air intake
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CN103900113A (en
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王宏丁
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Guangdong macro energy saving Technology Development Co., Ltd.
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王宏丁
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/34Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Abstract

The invention discloses a kind of solid particle fuel gasification combustor of efficient noncoking, it comprises gasification, and combustion core (1) and core overcoat (2); Gasification, and combustion core (1) entirety in a tubular form; Cavity in gasification, and combustion core (1) is divided into combustion gasification room (11) and gas combustion chamber (12), and gasification, and combustion core (1) bottom opening is ash hole (13), is also fuel combustion supporting air inlet; Gasification, and combustion core (1) upper opening is flame export (14), is also solid particle fuel import; Core overcoat (2) entirety in a tubular form, gasification, and combustion core (1) is sleeved in core overcoat (2), and the annular clamping cavity between gasification, and combustion core (1) and core overcoat (2) is air intake preheating compensating chamber (22); (1) has pore with gasification, and combustion core.It proves to there will not be fuel and combustion ash to tie problem that is fast thus blocking combustion road in interior coking through putting into practice repeatedly; It is energy-efficient, environment protection smokeless dirt.

Description

The solid particle fuel gasification combustor of efficient noncoking
Technical field
The present invention relates to a kind of cooking stove parts, mainly a kind of solid particle fuel cooking stove parts, the solid particle fuel gasification combustor of particularly a kind of efficient noncoking; It is installed in the burner hearth of solid particle fuel cooking stove, and solid particle fuel is burnt wherein and gasified, and the flame produced wherein and the combustion gas of gasification are sent in burner hearth.
Background technology
Solid particle fuel mainly comprises biomass granule fuel, mineral particle fuel etc.
Biomass granule fuel is called for short biomass fuel, biomass fuel mostly is agricultural wastes and timber refuse is bulk (the being mainly cylindric) fuel that main (bulbous crops, peanut shell, bark, sawdust and solid waste (furfural dregs, edible fungi residues etc.)) produces through processing, its diameter is generally 6 ~ 8 millimeters, length is 4 ~ 5 times of its diameter, percentage of damage is less than 1.5% ~ 2.0%, dry basis moisture content is less than 10% ~ 15%, content of ashes is less than 1.5%, sulfur content and chlorinity are all less than 0.07%, and nitrogen content is less than 0.5%.Biomass fuel has following characteristics:
1, biomass fuel caloric value is large, caloric value at 3900 ~ 4800 kilocalories/about kg, the caloric value after charing up to 7000-8000 kilocalories/kg.
2, biomass fuel purity is high, does not produce the foreign material of heat containing other, its carbon content 75-85%, ash 3-6%, water content 1-3%
3, not containing gangue, stone etc. do not generate heat the impurity of heat dissipation on the contrary, will be directly Reducing Cost in Enterprises.
4, biomass fuel is sulfur-bearing phosphorus not, does not corrode boiler, can service life of prolonged boiler, and enterprise is by benefited a great deal.
5, due to biomass fuel not sulfur-bearing phosphorus, during burning, do not produce sulfur dioxide and phosphorus pentoxide, acid rain thus can not be caused to produce, not atmosphere pollution, free from environmental pollution.
6, biomass fuel sanitation and hygiene, feed intake conveniently, reduce the labour intensity of workman, significantly improve work situation, and enterprise is used for the cost of labour aspect by reducing.
7, after biomass fuel combustion, ash quarrel is few, greatly reduces the place of stacking coal quarrel, reduces muck removal expense.
8, the ashes after biomass fuel combustion are the high high-quality organic potassic fertilizers of grade, recyclablely make profits.
9, biomass fuel is the reproducible energy that the Nature bestows in us, creates economies society, the adventurous headman that industry nurtures agriculture.
Biomass fuel is the ideal fuels of the daily productive life of people thus, is the developing direction of environmental protection, sustainable energy; But there is following problem in current biomass stove:
1. do not have independently burner, do not have independently burner, whole burner hearth dust, when the dust flown upward falls burner hearth, is difficult to cleaning in burner hearth everywhere, can be cumulative; Combusting firepower is not prosperous, efficiency is not high.Be " loose fire " everywhere, firepower is not concentrated, and flame does not circle round space.
2. charging and ash discharge bother, and even affect continuous burning; Mainly adopt flat push type feeding at present, or time-sharing type feeding, easy coking; Ash discharge bothers, can not ash discharge continuously, human assistance ability ash discharge is needed toward contact, fuel and the dust coking in burner hearth (namely luming) after firing, fuel is often caused to enter not go, dust can't get out, just must cease fire after often burning several hours, labor cleaning is carried out to the burner in biomass stove, cause truce, time-consuming useless power, coking problem has become the significant obstacle (namely people often abandon because of the problem of coking in burner using biomass stove, and adopt gas furnace) of biomass stove lifeline;
3. be directly enter cold air, and upper and lower temperature difference in restive burner hearth, cause temperature in burner hearth high, the temperature difference is high, and (the high-temperature region temperature on top is high, can reach the superhigh temperature of more than 1000 DEG C, and the low-temperature space temperature of bottom is low, general below 100 DEG C), this environment makes fuel and the easy coking of dust, and blocking combustion road (fuel channel and passage of flame), even cannot burn away; Simultaneously because temperature instability is unbalanced, gasification result is also bad;
4. fuel efficiency rate (the fuel efficiency rate heat energy of being fully used after referring to biomass fuel combustion account for biomass fuel all burn clean after the ratio of whole heat energy that produces) not high; For hypoxgia, burn insufficient, flue gas is many, and fuel efficiency rate is low; Gasification degree is not high, incomplete combustion, and a large amount of combustibles is not sufficiently burned.
Mineral particle fuel can be that coal is processed into granular fuel, and it burns and there is the problem substantially identical with biomass granule fuel in current fuel cooking stove.
Summary of the invention
The object of the invention is to overcome the above-mentioned deficiency of prior art and a kind of solid particle fuel gasification combustor of efficient noncoking be provided, its through practice repeatedly prove to there will not be fuel and combustion ash at interior coking knot the fast thus problem in blocking combustion road; It is energy-efficient, and fuel efficiency rate can reach more than 80%; Environmental protection, smoke dust.
Technical scheme of the present invention is: a kind of solid particle fuel gasification combustor of efficient noncoking, and it comprises gasification, and combustion core; Gasification, and combustion in-core is the cavity of upper and lower opening, and namely its entirety in a tubular form; The cavity of gasification, and combustion in-core is divided into combustion gasification room and gas combustion chamber, and combustion gasification room is positioned at the inner chamber Lower Half of gasification, and combustion core, and solid particle fuel mainly carries out burning and gasifying in combustion gasification room; Gas combustion chamber is positioned at the inner chamber first half of gasification, and combustion core, and the combustion gas after solid particle fuel gasification is mainly burnt in gas combustion chamber; Gasification, and combustion core bottom opening is ash hole, and ash hole is also fuel combustion supporting air inlet; Gasification, and combustion core upper opening is flame export, is also solid particle fuel import; The gas combustion chamber of described gasification, and combustion in-core be olive shape, namely small in ends, broad in the middle up and down; Combustion gasification room is cylindricality or up-small and down-big platform shape cavity, and the angle R that also namely gasification, and combustion in-core sidewall and baseplane are formed is less than or equal to 90 degree.
The present invention further technical scheme is: it also comprises core overcoat, core overcoat entirety in a tubular form, the inner chamber of core overcoat and the side profile of gasification, and combustion core adapt, gasification, and combustion core retainer plate is contained in core overcoat, a spaced apart gap of gasification, and combustion core and core overcoat is to form an annular clamping cavity, and the annular clamping cavity between gasification, and combustion core and core overcoat is air intake preheating compensating chamber; The top of core overcoat is provided with an air intake and chews, and its endoporus is connected with air intake preheating compensating chamber; Gasification, and combustion core has the hole linking up air intake preheating compensating chamber and gasification, and combustion in-core chamber.
The present invention further technical scheme is: described gasification, and combustion core has bottom and top that the hole linking up air intake preheating compensating chamber and gasification, and combustion in-core chamber is located at gasification, and combustion core respectively, the hole of bottom is gas-fired combustion-supporting fresh air inlet, and the hole on top is the combustion-supporting fresh air inlet of flue gas; Gas-fired combustion-supporting fresh air inlet is positioned at the junction of combustion gasification room and gas combustion chamber; The combustion-supporting fresh air inlet of flue gas is near the position of flame export.
The present invention also further technical scheme is: described gas-fired combustion-supporting fresh air inlet is multiple, multiple gas-fired combustion-supporting fresh air inlet is divided into many rows up and down, the multiple gas-fired combustion-supporting fresh air inlets often arranged circumferentially are distributed in the bottom of gasification, and combustion core, and often arranging gas-fired combustion-supporting fresh air inlet is ten five to three ten; The combustion-supporting fresh air inlet of flue gas is multiple, and the combustion-supporting fresh air inlet of multiple flue gas is divided into many rows up and down, and the combustion-supporting fresh air inlet of multiple flue gases often arranged circumferentially is distributed on gasification, and combustion core also near flame export.
The further technical scheme of the present invention is: be positioned at outside described gasification, and combustion core air intake preheating compensating chamber circumferentially Lower Half be equipped with pre-backing; Air intake is chewed and is in air intake preheating compensating chamber upper position.
The further technical scheme of the present invention is: the position described gasification, and combustion core being close to flame export is provided with flame spread and chews, and flame spread is chewed as horn mouth shape; The upper and lower side of gasification, and combustion core or core overcoat is respectively equipped with the nosing exported up and down for sealing air intake preheating compensating chamber; The upper outside of gasification, and combustion core is provided with the ribs strengthening the firmness that flame spread is chewed; The ribs strengthening structural capacity is also provided with outside core overcoat; Core overcoat lower end is also provided with the flange for installing; The cross section of gasification, and combustion core is annular.
The present invention compared with prior art has following features:
1. repeatedly prove that the present invention there will not be fuel and fire ash fast at interior coking knot through practice, thus road is fired in blocking, so that the phenomenon that cannot burn away, structure of the present invention of tracing it to its cause is brought:
A. the angle R that gasification, and combustion core 1 madial wall and baseplane are formed is less than or equal to 90 degree, can ensure fuel burn in combustion gasification room 11 after dust can fall by nature, destroy the flowing environment of coking;
B. ash hole 13 is also fuel combustion supporting air inlet simultaneously, and fuel carries out air when burning and gasify and enters from the fuel combustion supporting air inlet of bottom, and air intake has cooling effect to combustion ash (dust produced after burning), destroys the grey coking environment of combustion;
2. repeatedly prove that fuel efficiency rate of the present invention is high through practice, can reach more than 80%, far above the fuel efficiency rate of about 50% of common biomass stove, structure of the present invention of tracing it to its cause is brought:
A. gasification, and combustion in-core gas combustion chamber be olive shape, it is long that the fire that combustion gas and fuel gas buring produce falls into the time of staying, and combustion gas can be burnt more abundant, can improve efficiency of combustion;
B. flame spread chews 15 for horn mouth shape, is convenient to flame to burner hearth intramedullary expansion, improves the temperature in whole burner hearth;
C. by blast apparatus, air is chewed 21 from air intake and be blown into air intake preheating compensating chamber 22, then by gas-fired combustion-supporting fresh air inlet 18, arrive the junction of combustion gasification room 11 and gas combustion chamber 12, converge with the combustion gas of gasifying through combustion gasification room 11, for fuel gas buring provides enough oxygen, make combustion gas can Thorough combustion; Be blown into gas combustion chamber 12 and combustion gasification room 11 from the hot-air of the top preheating of air intake preheating compensating chamber 22, make fuel energy Thorough combustion, gasify better (relative to cold air);
D. air intake is chewed 21 and to be located on core overcoat 2 and to be positioned at air intake preheating compensating chamber 22 upper position, air can be made like this to enter the stroke of air intake preheating compensating chamber 22 longer, on the one hand preheating is carried out to air, enablely to be fully used, reach energy-conservation effect, balance the temperature difference of gasification, and combustion core 1 top and the bottom on the other hand, the temperature difference of gasification, and combustion core 1 top and the bottom is diminished, temperature step-down in high-temperature region in gasification, and combustion core 1 can be made, destroy the environment of gasification, and combustion core 1 fuel and dust coking, the low-temperature space temperature of bottom uprises, the fuel bottom gasification, and combustion core 1 can be made better to gasify and burn, gasification is good with combustion efficiency,
E. gas-fired combustion-supporting fresh air inlet 18 sends into hot-air, the fuel (i.e. combustion gas) gasified can be helped fully to mix in the junction of combustion gasification room 11 with gas combustion chamber 12, conflagration, and enter in gas combustion chamber 12 and burn away, the effect of Danone efficient burning;
F. gasification, and combustion core 1 upper opening is flame export 14, and be again charging aperture, namely solid particle fuel enters gasification, and combustion core 1 from here, forms counter-current relationship with flame, can dry in advance solid particle fuel simultaneously, improves fuel performance and the thermal efficiency;
G. the combustion-supporting fresh air inlet 19 of flue gas sends into some air, high-temperature flue gas oxygen combustion-supporting under, can conflagration, can improve fuel efficiency rate so on the one hand, flue gas is fully burned on the other hand, and the discharge of minimizing flue gas, reaches the effect of energy-conserving and environment-protective; Two groups of fresh air inlets match with circular air inlet preheating compensating chamber 22, can make the air intake circumferentially balanced air intake of 360 deg, make the burning of fuel burn and gasify more evenly with gasification all balanced the carrying out of different azimuth, stablize;
Applicant tests through up to a hundred efficiencies of combustion, detects, fuel efficiency rate on average more than 80%, far above current solid particle fuel stove.
3. gasification, and combustion core and core overcoat adopt split-type structural to be convenient to keep in repair and clean annular clamping cavity; The cold air that pre-backing 111 can improve an air intake preheating compensating chamber 22 carries out the effect of preheating; The upper outside of gasification, and combustion core 1 is provided with can strengthen the ribs 151 that flame spread chews the firmness of 15, and ribs 151 can also improve air preheat effect simultaneously; Also be provided with the ribs 23 strengthening structural capacity outside core overcoat 2, can prevent from hardening cracking; Core overcoat 2 lower end is also provided with the flange 24 for installing, and flange 24 is provided with the screw for installing.
4. smoke dust, environmental protection.
Below in conjunction with the drawings and specific embodiments, detailed construction of the present invention is further described.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the structural representation of gasification, and combustion core of the present invention;
Fig. 4 is the upward view of Fig. 3;
Fig. 5 is the structural representation of core overcoat of the present invention.
Detailed description of the invention
Embodiment 1
As Figure 1-5: a kind of solid particle fuel gasification combustor of efficient noncoking, it comprises gasification, and combustion core 1 and core overcoat 2, gasification, and combustion core 1 entirety in a tubular form, is namely the cavity (hollow tubular, also namely its inner chamber is through hole) of upper and lower opening in it, as Fig. 3, shown in 4, inner chamber in gasification, and combustion core 1 is divided into combustion gasification room 11 and gas combustion chamber 12, combustion gasification room 11 is positioned at the inner chamber Lower Half of gasification, and combustion core 1, solid particle fuel (below also can referred to as fuel) mainly carries out burning and gasifying in combustion gasification room 11, combustion gasification room 11 is cylindricality or up-small and down-big platform shape cavity, also the angle R that namely gasification, and combustion core 1 madial wall and baseplane are formed is less than or equal to 90 degree, with ensure fuel burn in combustion gasification room 11 after dust can nature fall, if angle R is greater than an angle of 90 degrees, then fuel and dust can be descending not smooth, so that easily block and form coking, gas combustion chamber 12 is positioned at the inner chamber first half of gasification, and combustion core 1, combustion gas (directly can be called for short combustion gas below) after fuel gasification is mainly in this burning, the body shape of gas combustion chamber 12 is olive shape (namely overall in olive shape), also namely small in ends up and down, broad in the middle, due to broad in the middle, the fire that fuel combustion produces in combustion gasification room 11 falls into, the combustion gas that fuel gasification produces and the fire that fuel gas buring produces fall into meeting " suddenly enlightened hold wide " when arriving gas combustion chamber 12 middle part, namely the fire that fuel combustion produces falls into, flows decrease (because gas flow rate and cross-sectional area are inversely proportional to) when the combustion gas that fuel gasification produces and the fire that fuel gas buring produces fall into gas combustion chamber 12 middle part, the time of staying is long, combustion gas can be burnt more abundant, efficiency of combustion can be improved, fuel carries out burning and gasifying in combustion gasification room 11, a composition part after gasification is burnt in gas combustion chamber 12, some burns away after entering burner hearth (namely having gone out gasification, and combustion core 1), so that after-flame, bottom gasification, and combustion core 1, (positive bottom) opening (i.e. the end mouth of combustion gasification room 11) is ash hole 13, ash hole 13 is the outlet of combustion ash (dust produced after fuel combustion), ash hole 13 is also fuel combustion supporting air inlet simultaneously, and fuel carries out air when burning and gasify and enters from the fuel combustion supporting air inlet of bottom, gasification, and combustion core 1 upper opening is flame export 14, be again charging aperture simultaneously, namely solid particle fuel enters gasification, and combustion core 1 from here, position gasification, and combustion core 1 being close to flame export 14 is provided with flame spread and chews 15, flame spread chews 15 for horn mouth shape, be convenient to flame to burner hearth intramedullary expansion, improve the temperature in whole burner hearth.
The cross section of gasification, and combustion core 1 is annular (as shown in Figure 2,4).
As shown in Figure 5, core overcoat 2 entirety in a tubular form, the inner chamber of core overcoat 2 and the side profile (side profile of gasification, and combustion core 1, do not comprise bottom surface and end face) adapt, gasification, and combustion core 1 is sleeved in core overcoat 2, and a spaced apart gap of gasification, and combustion core 1 and core overcoat 2, to form an annular space, namely forms annular clamping cavity, make whole the present invention generally in double-decker, the annular clamping cavity between gasification, and combustion core 1 and core overcoat 2 is air intake preheating compensating chamber 22, gasification, and combustion core 1 and core overcoat 2 can be integral structures, also can be split-type structural (shown in Fig. 1 are split-type structurals), adopt split-type structural to be convenient to maintenance and cleaning annular clamping cavity, the upper and lower side of gasification, and combustion core 1 is respectively equipped with the nosing (16,17) matched with core overcoat 2, to seal the outlet up and down of air intake preheating compensating chamber 22, certainly, the nosing (16,17) exported up and down sealing air intake preheating compensating chamber 22 also can be located on core overcoat 2, and this belongs to simple equivalent technologies and replaces, the top of core overcoat 2 is provided with an air intake, and to chew 21(also can be only an air intake opening, and this belongs to simple equivalent technologies and replaces), its endoporus is connected with air intake preheating compensating chamber 22, as shown in Figure 1,3, the bottom of gasification, and combustion core 1 and top are provided with two groups of fresh air inlets, i.e. gas-fired combustion-supporting fresh air inlet 18 and the combustion-supporting fresh air inlet 19 of flue gas, gas-fired combustion-supporting fresh air inlet about 18 is divided into six rounds, the multiple gas-fired combustion-supporting fresh air inlets 18 often arranged circumferentially are distributed in the bottom of gasification, and combustion core 1, and near the junction being positioned at combustion gasification room 11 and gas combustion chamber 12, often arranging gas-fired combustion-supporting fresh air inlet 18 is 15-30 hole (as shown in Figure 3), it is communicated with air intake preheating chamber 21 and gas combustion chamber 12 and combustion gasification room 11, by blast apparatus, air is chewed 21 from air intake and be blown into air intake preheating compensating chamber 22, then by gas-fired combustion-supporting fresh air inlet 18, arrive the junction of combustion gasification room 11 and gas combustion chamber 12, converge with the combustion gas of gasifying through combustion gasification room 11, for fuel gas buring provides enough oxygen, make combustion gas can Thorough combustion, air intake is chewed 21 and is located on core overcoat 2 and is positioned at air intake preheating compensating chamber 22 upper position, air can be made like this to enter the stroke of air intake preheating compensating chamber 22 longer, simultaneously because gas combustion chamber 12 temperature of gasification, and combustion core 1 generally can higher than the temperature of combustion gasification room 11, the first half temperature of gasification, and combustion core 1 is higher than Lower Half temperature, it is that air is moved from the high-temperature region of gasification, and combustion core 1 appearance to low-temperature space that the air entering air intake preheating compensating chamber 22 moves actual from top to bottom, namely reverse movement is formed with the flame of gasification, and combustion core 1 inner chamber, on the one hand preheating is carried out to air, enablely to be fully used, reach energy-conservation effect, balance the temperature difference of gasification, and combustion core 1 top and the bottom on the other hand, the temperature difference of gasification, and combustion core 1 top and the bottom is diminished, namely temperature step-down in high-temperature region in gasification, and combustion core 1 can be made, because what first cold air reached after coming in is high-temperature region, like this because the temperature difference is large, cold air can absorb a large amount of heat energy fast, the high temperature on gasification, and combustion core 1 top is reduced fast, be unlikely to temperature too high, destroy the environment of gasification, and combustion core 1 fuel and dust coking, the low-temperature space temperature of bottom uprises, the fuel bottom gasification, and combustion core 1 can be made better to gasify and burn, gasification is good with combustion efficiency.Because fuel carries out burning and gasifying in combustion gasification room 11, fuel after gasification is bottom-up through the junction of combustion gasification room 11 with gas combustion chamber 12, at this moment from the air that fuel combustion supporting air inlet enters oxygen because the burning of fuel is exhausted substantially, the fuel of gasification can be caused because no oxygen and can not Thorough combustion, namely the oxygen supply of combustion gasification room 11 is not enough, cause combustion gas cannot Thorough combustion, at this moment just in time gas-fired combustion-supporting fresh air inlet 18 sends into hot-air, the fuel (i.e. combustion gas) gasified can be helped fully to mix in the junction of combustion gasification room 11 with gas combustion chamber 12, conflagration, and enter in gas combustion chamber 12 and burn away, reach the effect of efficient burning.
The combustion-supporting fresh air inlet 19 of flue gas is circumferentially distributed in the top of gasification, and combustion core 1, it is communicated with air intake preheating chamber 21 and gas combustion chamber 12, due to the aggregation zone of combustion gas for producing after fuel combustion carbonization of gas combustion chamber 12, its firepower is large, temperature is high, maximum temperature can reach 900 degree, at this moment be exhausted from the oxygen the air that fuel combustion supporting air inlet and gas-fired combustion-supporting fresh air inlet 18 are sent into, when the flame that fuel combustion and fuel gas buring produce will be discharged from gas combustion chamber 12, combustion gas fuming may be aggravated because oxygen is not enough, cause combustion gas and flue gas to stablize to burn fully, flue dust is caused to produce, these high-temperature flue gas, can produce air and pollute, at this moment the combustion-supporting fresh air inlet 19 of flue gas just by gasification, and combustion core 1 sends into some air, high-temperature flue gas oxygen combustion-supporting under, meeting conflagration, such one side can improve fuel efficiency rate, flue gas is fully burned on the other hand, reduce the discharge of flue gas, reach the effect of energy-conserving and environment-protective.
Be blown into gas combustion chamber 12 and combustion gasification room 11 from the hot-air of the top preheating of air intake preheating compensating chamber 22, make fuel energy Thorough combustion, gasify better (relative to cold air).
Two groups of fresh air inlets match with circular air inlet preheating compensating chamber 22, the air intake circumferentially balanced air intake of 360 deg can be made, the burning of fuel and gasification is made all balancedly to carry out (instead of resembling traditional air intake and taking from a direction air intake in different azimuth, make burning and asynchronous carrying out of gasifying, there is no the fuel combustion beyond perforate and gasify slower or insufficient), for the gas-fired combustion-supporting of also not fully gasification, enter in burner hearth and burn away, make firepower more prosperous, the fuel gas buring of gasification is more abundant, burns and gasifies more stable;
Be positioned at outside gasification, and combustion core 1 air intake preheating compensating chamber 22 circumferentially Lower Half (being also the position that gasification, and combustion core 1 cavity temperature is the highest) all establish (namely evenly lay) have pre-backing 111(or be fin, because be preheating relative to air intake, but be heat radiation relative to gasification, and combustion core 1, to reduce the temperature of gasification, and combustion core 1, prevent from exceeding 1,000 degrees Celsius and cause coking), the cold air that pre-backing 111 can improve an air intake preheating compensating chamber 22 carries out the effect of preheating.
The upper outside of gasification, and combustion core 1 is provided with can strengthen the ribs 151 that flame spread chews the firmness of 15, and ribs 151 can also improve air preheat effect simultaneously.
Also be provided with the ribs 23 strengthening structural capacity outside core overcoat 2, can prevent from hardening cracking; Core overcoat 2 lower end is also provided with the flange 24 for installing, and flange 24 is provided with the screw for installing.
Using method of the present invention and operation principle: the present invention is used for being arranged in burner hearth, and be connected with ash discharge system with air feed system, feed system, solid particle fuel drops into from gasification, and combustion core 1 its top feed mouth (flame export 14) by the solid fuel conveying device of feed system, fuel burns in combustion gasification room 11, gasification, gasification enters in gas combustion chamber 12 burns, because the fuel dropped into moves under gravity from top to bottom, and the flame in combustion gasification room 11 moves from bottom to top, solid particle fuel and flame counter motion, because the temperature of combustion gasification room is higher, solid fuel is dropped into after in gasification, and combustion core 1 dry rapidly, and enter in combustion gasification room 11 and be in fired state, and be fully burned, gasify simultaneously, when the flame in combustion gasification room 11 enters into gas combustion chamber 12 time, because the gas combustion chamber 12 of gasification, and combustion core 1 is broad in the middle, all can " suddenly enlightened hold wide " when the combustion gas of fuel, gasification and fire fall into gas combustion chamber 12 middle part, namely flows decrease (because gas flow rate and area of section are inversely proportional to) when the combustion gas of fuel, gasification and fire fall into middle part, the gasification of such fuel with burn more abundant, air intake preheating compensating chamber 22 is positioned at outside gasification, and combustion core 1, air is chewed 21 from air intake and is blown into by blast apparatus, from top to bottom, the outside of substantially inswept gasification, and combustion core 1, cold air is through gasification, and combustion core 1 outer surface, heated, when entering gasification, and combustion core 1, general temperature can reach more than 300 DEG C, be equivalent to carry out preheating to air, the combustion effects that this hot-air enters inside gasification, and combustion core 1 pair of gasification, and combustion core 1 is little, can adapt to the internally fired requirement of gasification, and combustion core 1, relative cold air hot-air enters and combustion-supportingly again saves energy, gas-fired combustion-supporting fresh air inlet 18 and the combustion-supporting fresh air inlet 19 of flue gas are circumferentially evenly arranged and air intake can be made even, and combustion gasification is even, more far better than single side face air inlet effect, and can not cause the phenomenon of " Bian Yin limit sun ", burning and gasification are more completely evenly, cold air enters combustion gasification room 11 from bottom to top from fuel combustion supporting air inlet (ash hole 13), it is just in time solid fuel concentration district herein, and cold air is direct and solid fuel meets, might as well to fuel cooling-down effect, make the temperature of (combustion gasification room 11) in gasification, and combustion core 1 can not reach more than 900 degree, thus the environment of solid fuel coking has not been existed, avoid coking, the solid fuel of graininess (being generally φ 5 ~ φ 6mm order of magnitude) constantly drops into from top to bottom, the dust (being generally a μm order of magnitude) burnt constantly will drop to ash hole place downwards and discharge from ash discharge system (sieve aperture of fire grate), particularly ash naturally vertical by Action of Gravity Field under fall and bring conveniently to ash discharge, not need manually or ash shovels out by other device from combustion gasification room 11, the hot-air of three or four hundred degree by gas-fired combustion-supporting fresh air inlet 18 and combustion-supporting fresh air inlet 19 air sent in gasification, and combustion core 1 of flue gas from air intake preheating compensating chamber 22, making to have a narrow range of temperature in whole gasification, and combustion core 1, (upper and lower temperature difference is at about 400 degree, if as traditional method, directly enter cold air, in gasification, and combustion core 1, upper and lower temperature difference can reach more than 900 degree, easy coking caking), temperature equalization, be conducive to gasification and firepower evenly, stable, lasting.
In the process that noncoking of the present invention and power-saving technology are formed, applicant has successively done the test (applicant has dropped into a large amount of manpower and financial resources) of at every turn burning more than 7 hours for more than 100 time in nearly 2 years, test shows that fuel efficiency rate of the present invention is on average more than 80%, far above current solid particle fuel stove; In 50 test of many times below, high-temperature region (gasification, and combustion core 1 internal upper part flame export 14 place) temperature is low, not more than 1000 DEG C, low-temperature space (in gasification, and combustion core 1 lower air intake place) temperature is high, more than 300 DEG C can be reached, have a narrow range of temperature in whole gasification combustor, temperature stabilization, gasification, and combustion is cmpletely, also destroy the coking environment of more than 1000 DEG C simultaneously, never occur the situation of fuel and dust coking.
The present invention is not limited to above-mentioned concrete structure, as long as the solids gasification burner being provided with air intake preheating chamber bottom top charging simultaneously outside automatic ash discharge, gasification, and combustion core 1 just drops within protection scope of the present invention.

Claims (9)

1. a solid particle fuel gasification combustor for efficient noncoking, is characterized in that: it comprises gasification, and combustion core (1); Be the cavity of upper and lower opening in gasification, and combustion core (1), namely its entirety in a tubular form; Cavity in gasification, and combustion core (1) is divided into combustion gasification room (11) and gas combustion chamber (12), combustion gasification room (11) is positioned at the inner chamber Lower Half of gasification, and combustion core (1), and solid particle fuel mainly carries out burning and gasifying in combustion gasification room (11); Gas combustion chamber (12) is positioned at the inner chamber first half of gasification, and combustion core (1), the mainly burning in gas combustion chamber (12) of the combustion gas after solid particle fuel gasification; Gasification, and combustion core (1) bottom opening is ash hole (13), and ash hole (13) is also fuel combustion supporting air inlet; Gasification, and combustion core (1) upper opening is flame export (14), is also solid particle fuel import;
Gas combustion chamber (12) in described gasification, and combustion core (1) be olive shape, namely small in ends, broad in the middle up and down; Combustion gasification room (11) is cylindricality or up-small and down-big platform shape cavity, and the angle R that also namely gasification, and combustion core (1) madial wall and baseplane are formed is less than or equal to 90 degree.
2. the solid particle fuel gasification combustor of efficient noncoking according to claim 1, it is characterized in that: it also comprises core overcoat (2), core overcoat (2) entirety in a tubular form, the inner chamber of core overcoat (2) and the side profile of gasification, and combustion core (1) adapt, gasification, and combustion core (1) is sleeved in core overcoat (2), a spaced apart gap of gasification, and combustion core (1) and core overcoat (2) is to form an annular clamping cavity, and the annular clamping cavity between gasification, and combustion core (1) and core overcoat (2) is air intake preheating compensating chamber (22); The top of core overcoat (2) is provided with an air intake and chews (21), and its endoporus is connected with air intake preheating compensating chamber (22); Gasification, and combustion core (1) has the hole linking up air intake preheating compensating chamber (22) and gasification, and combustion core (1) inner chamber.
3. the solid particle fuel gasification combustor of efficient noncoking according to claim 2, it is characterized in that: described gasification, and combustion core (1) has bottom and top that the hole linking up air intake preheating compensating chamber (22) and gasification, and combustion core (1) inner chamber is located at gasification, and combustion core (1) respectively, the hole of bottom is gas-fired combustion-supporting fresh air inlet (18), and the hole on top is the combustion-supporting fresh air inlet of flue gas (19); Gas-fired combustion-supporting fresh air inlet (18) is positioned at the junction of combustion gasification room (11) and gas combustion chamber (12); The combustion-supporting fresh air inlet of flue gas (19) is near the position of flame export (14).
4. the solid particle fuel gasification combustor of efficient noncoking according to claim 3, it is characterized in that: described gas-fired combustion-supporting fresh air inlet (18) is for multiple, multiple gas-fired combustion-supporting fresh air inlet (18) is divided into many rows up and down, multiple gas-fired combustion-supporting fresh air inlets (18) of often arranging circumferentially are distributed in the bottom of gasification, and combustion core (1), and often arranging gas-fired combustion-supporting fresh air inlet (18) is ten five to three ten; The combustion-supporting fresh air inlet of flue gas (19) is for multiple, row more than the combustion-supporting fresh air inlet of multiple flue gas (19) is divided into up and down, the combustion-supporting fresh air inlet of multiple flue gases (19) often arranged circumferentially is distributed in gasification, and combustion core (1) and goes up and close flame export (14).
5. the solid particle fuel gasification combustor of efficient noncoking according to claim 2, is characterized in that: described gasification, and combustion core (1) outside be positioned at air intake preheating compensating chamber (22) circumferentially Lower Half be equipped with pre-backing (111); Air intake is chewed (21) is in air intake preheating compensating chamber (22) upper position.
6. the solid particle fuel gasification combustor of efficient noncoking according to claim 3, is characterized in that: described gasification, and combustion core (1) outside be positioned at air intake preheating compensating chamber (22) circumferentially Lower Half be equipped with pre-backing (111); The top of core overcoat (2) is provided with an air intake and chews (21), and its endoporus is connected with air intake preheating compensating chamber (22), and air intake is chewed (21) is in air intake preheating compensating chamber (22) top correspondence position.
7. the solid particle fuel gasification combustor of efficient noncoking according to claim 4, is characterized in that: described gasification, and combustion core (1) outside be positioned at air intake preheating compensating chamber (22) circumferentially Lower Half be equipped with pre-backing (111); The top of core overcoat (2) is provided with an air intake and chews (21), and its endoporus is connected with air intake preheating compensating chamber (22), and air intake is chewed (21) is in air intake preheating compensating chamber (22) top correspondence position.
8. the solid particle fuel gasification combustor of efficient noncoking according to claim 2, it is characterized in that: the position described gasification, and combustion core (1) being close to flame export (14) is provided with flame spread and chews (15), flame spread is chewed (15) is horn mouth shape; The upper and lower side of gasification, and combustion core (1) or core overcoat (2) is respectively equipped with the nosing (16,17) exported up and down for sealing air intake preheating compensating chamber (22); The upper outside of gasification, and combustion core (1) is provided with can strengthen the ribs (151) that flame spread chews the firmness of (15); Core overcoat (2) outside is also provided with the ribs (23) strengthening structural capacity; Core overcoat (2) lower end is also provided with the flange (24) for installing; The cross section of gasification, and combustion core (1) is annular.
9. the solid particle fuel gasification combustor of efficient noncoking according to claim 3, it is characterized in that: the position described gasification, and combustion core (1) being close to flame export (14) is provided with flame spread and chews (15), flame spread is chewed (15) is horn mouth shape; The upper and lower side of gasification, and combustion core (1) or core overcoat (2) is respectively equipped with the nosing (16,17) exported up and down for sealing air intake preheating compensating chamber (22); The upper outside of gasification, and combustion core (1) is provided with can strengthen the ribs (151) that flame spread chews the firmness of (15); Core overcoat (2) outside is also provided with the ribs (23) strengthening structural capacity; Core overcoat (2) lower end is also provided with the flange (24) for installing; The cross section of gasification, and combustion core (1) is annular.
CN201410091972.6A 2014-03-13 2014-03-13 The solid particle fuel gasification combustor of efficient noncoking Expired - Fee Related CN103900113B (en)

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