CN102116493B - Mixed fuel furnace system and combustion method - Google Patents
Mixed fuel furnace system and combustion method Download PDFInfo
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- CN102116493B CN102116493B CN2011100010300A CN201110001030A CN102116493B CN 102116493 B CN102116493 B CN 102116493B CN 2011100010300 A CN2011100010300 A CN 2011100010300A CN 201110001030 A CN201110001030 A CN 201110001030A CN 102116493 B CN102116493 B CN 102116493B
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- 238000009841 combustion method Methods 0.000 title claims abstract description 10
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- 239000007788 liquid Substances 0.000 claims abstract description 58
- 238000002485 combustion reaction Methods 0.000 claims abstract description 55
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000003546 flue gas Substances 0.000 claims abstract description 39
- 239000007789 gas Substances 0.000 claims abstract description 22
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 17
- 239000001301 oxygen Substances 0.000 claims abstract description 17
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- 238000009834 vaporization Methods 0.000 claims description 73
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- 238000010438 heat treatment Methods 0.000 claims description 3
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- 239000000779 smoke Substances 0.000 abstract description 5
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Abstract
The invention discloses a mixed fuel furnace system and a combustion method, the mixed fuel furnace system comprises a furnace and a liquid fuel supply device connected with the furnace, wherein a gas fuel supply device is further connected onto the furnace, the gas fuel supply device comprises a solid fuel smoldering barrel and an oxygen supply device, a sealing cover is arranged at an opening at the top part of the smoldering barrel, an ignition device and an ash outlet are arranged at the bottom part, a flue gas outlet is further arranged at the upper part of the smoldering barrel, and the flue gas outlet is connected with a gas fuel spout formed on the furnace through a gas conveying pipe. The mixed fuel furnace system can effectively solve the problems of low fuel combustion efficiency and series environmental pollution of the conventional solid fuel furnaces and achieve the purposes of enabling a solid fuel to combust fully and avoiding producing black smoke and other environmental pollution by firstly smoldering the solid fuel and then mixing combustible gas produced through the smoldering with a vaporized liquid fuel for combustion; compared with the conventional ordinary liquid fuel furnaces, the mixed fuel furnace can save the fuel by about 45% at most.
Description
Technical field
The present invention relates to a kind of stove and accessory system, the especially a kind of fuel combination furnace system and combustion method that can utilize the energy-saving and environmental protection that firewood, agricultural crop straw act as a fuel.
Background technology
The stove of prior art mostly uses single solid, liquid or gaseous fuel, for solid fuel, and the solid fuel of plant class especially; The stove of prior art adopts the directly mode of burning mostly; This mode imperfect combustion occurs easily and produces a large amount of black smokes at fuel combustion process, has not only wasted a large amount of fuel, has also polluted environment; Some fuel gas of following combustion process to produce are in addition also directly discharged with flue gas easily, thereby have reduced the utilization rate of fuel.And in the rural area, a large amount of crop material that crops harvesting back produces etc. are not because its combustion heat value is not high, and the peasant is unwilling to act as a fuel and uses and become rubbish or directly destroyed by fire, has not only polluted environment, also causes the waste of resource.Though the factory that can utilize the generating of this type vegetable garbage is also arranged, the stove in existing this type power plant also directly burns this mode through rubbish and moves, and therefore, inefficient and problem of environmental pollution exists equally.Open day is on July 22nd, 2009; Publication number is that the Chinese patent file of CN201277694Y discloses a kind of fuel combination multiple duct oxygen supply power economized boiler; Comprise body of heater, combustion chamber, oxygen supply storehouse, air blast, air-introduced machine, fume emission passage; The oxygen supply pipeline of said air blast sets up two-way separately, and one road pipeline is communicated with the mist inlet that the combustion chamber sidepiece is provided with, and another road is communicated with the oxygen supply storehouse of fire bars below.Compare with conventional boiler, this boiler can buring solid fuel burning gases fuel or cheap liquid fuel simultaneously, guarantee the abundant burning of various fuel through the ventilation of controlling each air channel.The solid fuel of this boiler adopts traditional combustion method, does not solve problem of environmental pollution.Open day be that the patent document that May 20, publication number in 2009 are CN101435573A discloses a kind of material mixing suspension combustion process of boiler biomass fuel pressurization air, include: with the broken powder process of biomass fuel, granularity is 0.5-2.0mm; Utilize existing boiler observation port that nozzle is installed, to send into the powdery biomass fuel of entrained air; Agricultural crop straw or waste paper are put into indoor the lighting of boiler combustion as kindling make furnace temperature reach 450 ℃, send into the powdery biomass fuel; It is indoor that the powdery biomass fuel is delivered into boiler combustion through pressure air mixing duct and nozzle, and wherein the volume ratio of material and air is 1: 1500～2000; Send the indoor disposable suspension combustion of powdery biomass fuel of boiler combustion to, stove internal combustion temperature reaches 1050 ℃～1100 ℃.This method is not changing on the basis that has boiler structure now, and also can directly put in the existing boiler with biomass fuel replacement traditional fuel and use, because in advance with biomass fuel fragmentation powder process, so it is relatively complete to burn.But this method needs elder generation with the broken powder process of biomass fuel, and cost is very high, and this method only is applicable to boiler simultaneously, can't use by every household in the rural area, in addition, is easy to generate a large amount of dust behind pulverous biomass fuel combustion, and environmental pollution is very big.
Summary of the invention
The present invention provides a kind of fuel economy high, low in the pollution of the environment fuel combination furnace system for the fuel economy problem low, that environmental pollution is serious that solves present solid fuel cooker existence.
Another object of the present invention provides the combustion method of high, the low in the pollution of the environment fuel combination furnace system of a kind of fuel economy for the fuel economy problem low, that environmental pollution is serious that solves its combustion method existence of present solid fuel cooker.
The present invention reaches the concrete technical scheme that above-mentioned technical purpose adopts to be: a kind of fuel combination furnace system, comprise a stove and accessory and the liquid fuel feeding mechanism that is connected with stove and accessory, and also be connected with gas fuel supply device on the described stove and accessory; Stove and accessory comprises combustion chamber, is provided with furnace chamber in the combustion chamber, is provided with vaporization chamber in the furnace chamber; The liquid fuel feeding mechanism connects vaporization chamber through woven hose, non-return device, and the outlet of vaporization chamber connects the vaporization shower nozzle that is arranged on the furnace chamber bottom, and the bottom of furnace chamber is provided with air inlet duct; Be provided with gaseous fuel jets in the air inlet duct; Described gas fuel supply device comprise solid fuel glow the bucket and apparatus of oxygen supply, the opening part at barrel top of glowing is provided with seal cover, the bottom is provided with ignition device and ash hole; Glow the bucket top also be provided with exhanst gas outlet, exhanst gas outlet is connected with gaseous fuel jets through appendix.A lot of solid matters like crop material, cavings, paper, sawdust, fabric and some porous thermosetting plastics etc., all might glow, particularly when they are piled up.Glowing is a kind of form of solid combustion, is the smoulder of no visible light, produces phenomenons such as cigarette and temperature rising usually, and the difference of it and flaming combustion is no flame, and it and aphlogistic difference are thermal decomposition to go out combustible gas.The present invention utilizes crop material, cavings, sawdust the like waste; Utilize its characteristics of glowing easily, through the bucket that glows it is glowed, combustibles such as the flue gas (carbon particulate) that produces in the bucket that will glow then, carbon monoxide are introduced liquid fuel vaporizing burner through appendix; The high temperature and the flame that utilize liquid fuel combustion to produce; Combustibles such as flue gas, carbon monoxide are fully burnt, and such burning is quite complete, the black smoke that does not have the sort of direct buring solid fuel to produce; Therefore it has not only solved the problem that solid fuel ignition efficient is low, environmental pollution is serious of prior art; Can also make full use of crop material, cavings, sawdust the like waste, those vegetal rubbish also can adopt structure of the present invention to be used even, under the prerequisite of equal firepower; Can reduce the use amount of liquid fuel significantly, practice thrift the energy effectively.The seal cover at barrel top of glowing can be opened and be used to add solid fuel; The ash hole of bottom is used to discharge ashes; Ignition device is used to light solid fuel; Apparatus of oxygen supply can be given in the bucket that glows air is provided, and guarantees that solid-fuelled glowing continues to carry out in the bucket, can also regulate the size of oxygen-supplying amount simultaneously and control the solid-fuelled speed of glowing in the bucket that glows.In addition, the ashes that the bucket that glows produces can also supply proportion of crop planting to use as organic fertilizer, have also reduced the crop planting cost.Need to prove; Structure of the present invention can be used liquid fuel work separately; Solid fuel glow do not begin or unsettled situation under also can normally use, avoided traditional stove and accessory little and influence the situation of stove and accessory operate as normal when big when solid fuel ignition because during firepower.
As preferably; Furnace chamber top is provided with some flow deflectors; Wherein the inside of at least one flow deflector is the vaporization chamber of hollow structure; The flow deflector outside is provided with the flow-disturbing ring that is provided with around flow deflector near the position of furnace chamber wall, and the ring body of described flow-disturbing ring is the shape structure in the shape of a spiral, and the spiral shell crack of said helical structure is percent 25 to percent 55 of a said helical structure external diameter.The effect one of flow deflector is a steering current, and the burning fire seedling is evenly distributed, and improves the heats of stove and accessory, and vaporization chamber is provided with the inside of flow deflector, can make full use of ready-made flow deflector structure liquid fuel evaporation need not be provided with vaporization chamber in addition; The 2nd, liquid fuel and flue gas after the vaporization are mixed, guarantee the combustion efficiency of fuel.The effect of flow-disturbing ring is that near the flow direction of the mixed fuel gas furnace wall changed, thereby improves two kinds of uniformity coefficients after the fuel mix, helps improving the stability of stove and accessory flame simultaneously.In addition, the spiral shell crack of flow-disturbing ring helical structure and the external diameter of helical structure need certain proportionate relationship, and the ratio of the external diameter of spiral shell crack and helical structure is too little, and air-flow is difficult for passing through; And ratio is too big; Then " flow-disturbing " of flow-disturbing ring effect is not obvious; So the excessive or too small effect that does not all reach the stability that improves stove and accessory flame of this ratio, spiral shell crack described here is meant the gap that can let air communication cross between the two adjacent rings spiral; It numerically deducts the diameter or the thickness of helical structure material therefor less than the pitch of helical structure for the pitch of helical structure.
As preferably, flow deflector is 3 to 5, and flow deflector is inverted V-shaped, is provided with vaporization chamber in two or more flow deflectors, and described vaporization chamber is that serial or parallel connection connects, and the import of vaporization chamber and outlet are separately positioned on the open side two ends of v-shaped structure flow deflector.The flow deflector top of inverted V-shaped connects and the junction is positioned at the central authorities on furnace chamber top, and the bottom of flow deflector separately and evenly be arranged on the position of furnace chamber middle part near the furnace chamber wall.Because being umbrella usually, flow deflector integral body arranges; Therefore flow deflector connects into high in the middle of forming, the low structure all around of umbrella-shaped structure; And single flow deflector is inverted V-shaped, because the outlet of liquid fuel inlet and vaporization back liquid fuel all is arranged on the bottom of combustion chamber usually, therefore; Adopt the flow deflector of inverted V-shaped structure because its openend is lower, the two ends of opening are connected with the outlet of liquid fuel inlet or vaporization back liquid fuel easily.Usually use 3 to 5 flow deflectors just can satisfy the needs of general stove and accessory.Being provided with of vaporization chamber in the flow deflector can be confirmed according to the actual conditions of stove and accessory; Stove and accessory hour only needs in a flow deflector, vaporization chamber to be set usually and just can meet the demands, and also can in two or more flow deflectors, vaporization chamber be set simultaneously, and vaporization chamber can connect for serial or parallel connection at this moment; Its liquid fuel evaporation temperature of the structure that is connected in series is higher; Compare with single vaporization chamber, combustion efficiency is better, but spray vapour amount can significantly not increase; Its spray vapour amount of the structure that is connected in parallel significantly increases, and is applicable to bigger stove and accessory.Need to prove that though the top of each flow deflector interconnects, the vaporization chamber that is provided with separately in the flow deflector is not communicated with in this junction, the serial or parallel connection of vaporization chamber all is that the import through vaporization chamber is connected with outlet accordingly.
As preferably, the below of air inlet duct is connected with the flue gas cushion chamber, and the flue gas cushion chamber is horn-like structure, the opening of horn-like structure down, the height of flue gas cushion chamber is greater than the height of combustion chamber.The flue gas cushion chamber can play cushioning effect to the flue gas of gaseous fuel jets ejection, and when the ejection exhaust gas volumn was big, partial fume can gather downwards; Make it temporarily rest on the below of furnace chamber; And get into furnace chamber again with the stove and accessory air intake, can avoid flue gas outwards to walk around the furnace chamber of combustion chamber and directly discharge like this, when flue gas is outwards walked around the furnace chamber of combustion chamber and when directly discharging; Because flue gas is not by ignition combustion; Therefore not only waste fuel, but also can cause that stove and accessory smolders, influenced the use of stove and accessory.
As preferably, non-return device comprises spray orifice, and spray orifice is arranged on the junction of vaporization chamber and woven hose, and the diameter of described spray orifice is less than the internal diameter of woven hose.The spray orifice here also has the effect with liquid fuel atomization except single effect, help the vaporization of liquid fuel.When adopting jet orifice structure; When the diameter of spray orifice is significantly less than the internal diameter of woven hose, the fuel gas of vaporization receives the dual of spray orifice and liquid fuel pressure and stops in the vaporization chamber like this, can flow to shower nozzle; And can not flow backwards to woven hose, therefore can play the effect that prevents that fuel from flowing backwards.Through simple jet orifice structure, save the check valve of traditional gasification burner like this, improved work efficiency, also practiced thrift cost.In addition, non-return device also can adopt nozzle, and nozzle self possesses and prevents that fuel from flowing backwards and with the double action of fuel atomization.
As preferably, the vaporization shower nozzle is arranged on the bottom of furnace chamber, and described gaseous fuel jets is arranged on the below of vaporization shower nozzle.It is in order to make full use of the air-flow of vaporization shower nozzle ejection that gaseous fuel jets is placed the below of vaporization shower nozzle; Liquid fuel after making flue gas and vaporizing fully mixes; Reach the clean-burning purpose of flue gas, simultaneously, flue gas with the vaporization after liquid fuel fully mix; Improved the combustion rate of flue gas, can also make the combustion flame of stove and accessory more stable.
As preferably; The ring body of flow-disturbing ring is coil spring shape in the form of sheets; The ring body material of flow-disturbing ring is flat flake structure; The helical spring spiral shell of said sheet crack is percent 30 to percent 50 of a said sheet spring outside coil diameter, and the helical spring internal diameter of said sheet is percent 20 to percent 40 of a said sheet spring outside coil diameter.The flow-disturbing ring constitutes a circulus on the whole; Ring body itself is structure in the shape of a spiral; Sheet coil spring shape described here is meant the ring body structurc of flow-disturbing ring; And the material that constitutes helical structure is a flake structure, and the sheet plane of this flake structure promptly is similar to the structure of the packing auger blade of mechanical field on the direction vertical with helical structure center line cardinal principle.The fuel gas that is in the furnace chamber bottom rises when touching the flow-disturbing ring of this structure; Fuel gas can rotate in certain scope; Thereby the air-flow in the stirring furnace chamber; Multiple fuel gas is fully mixed, effectively improved the combustion rate of fuel gas, also make the combustion flame of stove and accessory more stable simultaneously.Spiral shell crack described here is meant the gap that can let air communication cross between adjacent two helical spring sheets, and it numerically deducts the thickness of helical spring sheet material therefor less than helical spring pitch for pitch; Flake structure described here, the thickness that is meant sheet helical spring material therefor are much smaller than the helical spring pitch of sheet, and the thickness of sheet helical spring material therefor is not more than 1/10th of the helical spring pitch of sheet usually.
As preferably, the V-shaped structure in bucket bottom of glowing, described ignition device is the heating tube that is arranged on the v-shaped structure bottom, the bottom of v-shaped structure connects ash hole.Glow bucket bottom v-shaped structure on the one hand for fuel igniting and the wind direction of apparatus of oxygen supply plays guide effect, can make the ashes after solid fuel glows discharge the bucket that glows smoothly on the other hand.
A kind of combustion method of fuel combination furnace system comprises following characteristic or step:
A. use liquid fuel and solid fuel simultaneously, wherein solid fuel is the fuel that contains string;
B. liquid fuel pressurization back directly gets into the vaporization chamber in the stove and accessory through non-return device; And overflow from the vaporization shower nozzle at last; The ignited fuel that will overflow; The heat that fuel combustion produces makes the liquid fuel evaporation in the vaporization chamber, and the liquid fuel after the vaporization makes stove and accessory be in fired state through vaporization shower nozzle ejection burning;
C. solid fuel put into glow the bucket and compress, the solid fuel volume after compressing in the bucket that glows is no more than 85% of barrel volume that glows;
D. the ignition device of opening the bucket bottom of glowing glows the solid fuel in the bucket, closes ignition device after solid fuel glows and opens apparatus of oxygen supply, regulates intake and makes the solid fuel in the bucket that glows keep the state that glows;
E. the glow flue gas that produces of solid fuel gets into the air inlet duct of stove and accessory through appendix, gaseous fuel jets; And in furnace chamber with the naked light mixed combustion of liquid fuel combustion; Control gets into the flue gas of stove and accessory and the ratio of liquid fuel, and the flue gas that gets into stove and accessory is fully burnt.
Preferred as such scheme; Put into the bucket and when compressing of glowing at solid fuel; Several passages are set in solid fuel; The opening of passage is positioned at solid-fuelled upper surface, and the lower end is positioned at solid fuel inside and near solid-fuelled bottom, said flue gas is 0.5 to 1 with the volume ratio of vaporization back liquid fuel.Can be when passage is set through in the bucket that glows, placing column such as waddy in advance, put into solid fuel again and compress after waddy is extracted out, will stay vent hole structure like this in solid fuel inside, help solid fuel the oozing out of fuel gas afterwards of glowing.In addition, the volume ratio of flue gas and vaporization back liquid fuel is controlled between 0.5 to 1 usually, and the flue gas ratio is too high; Will cause smoke combustion insufficient, produce black smoke and the firepower of stove and accessory is reduced, and the flue gas ratio be low excessively; Will strengthen the use amount of liquid fuel, not reach obvious energy-saving effect.
The invention has the beneficial effects as follows: it has solved the problem that fuel economy is low, environmental pollution is serious that present solid fuel cooker exists effectively; The present invention makes solid fuel glow earlier, and the liquid fuel mixed combustion after will glow the then fuel gas that produces and the vaporization is fully burnt solid fuel and do not produced the purpose of environmental pollutions such as black smoke thereby reaches; The present invention is adapted to various vegetalitas solid fuels; Comprise crop material, cavings, sawdust, branch leaf, waste paper, vegetable garbage and some waste or used plastics etc., under the prerequisite of equal firepower, can reduce the use amount of liquid fuel significantly; Effectively utilize discarded object, reduced environmental pollution and practiced thrift the energy; Compare with present common liquid fuel range, can practice thrift the fuel about 45% at most, have remarkable economical and social benefit.
Description of drawings
Fig. 1 is a kind of structural representation of fuel combination furnace system of the present invention.
Fig. 2 be fuel combination furnace system of the present invention glow the bucket a kind of structure cutaway view.
Fig. 3 is a kind of structure cutaway view of fuel combination furnace system combustion chamber of the present invention.
Fig. 4 is the vertical view of Fig. 3.
Fig. 5 is a kind of structure cutaway view of fuel combination furnace system non-return device of the present invention.
Fig. 6 is the another kind of structure cutaway view of fuel combination furnace system combustion chamber of the present invention.
The specific embodiment
Pass through embodiment below, and combine accompanying drawing that the specific embodiment of technical scheme of the present invention is further described.
Embodiment 1
In embodiment shown in Figure 11, a kind of fuel combination furnace system comprises a stove and accessory 1 and the liquid fuel feeding mechanism 26 and the gas fuel supply device that are connected with stove and accessory; Described stove and accessory comprises combustion chamber, is provided with furnace chamber in the combustion chamber, is provided with the liquid fuel evaporation chamber in the furnace chamber; The liquid fuel feeding mechanism connects vaporization chamber through woven hose 5, non-return device; The outlet of vaporization chamber connects the vaporization shower nozzle that is arranged on the furnace chamber bottom, and the bottom of furnace chamber is provided with air inlet duct, is provided with gaseous fuel jets in the air inlet duct; Described gas fuel supply device comprises the solid fuel bucket 10 and apparatus of oxygen supply 13 that glows; Apparatus of oxygen supply is the air extractor that is arranged on the appendix, and the opening part at barrel top of glowing is provided with seal cover 11, and the bottom is provided with ignition device and ash hole; The glow top of bucket also is provided with exhanst gas outlet 15, and exhanst gas outlet is connected with gaseous fuel jets in the stove and accessory through air extractor, appendix 16.
Combustion chamber such as Fig. 3 of embodiment 2 are shown in Figure 4; Be provided with furnace chamber 3 in the combustion chamber 2, furnace chamber top is provided with 4 flow deflectors 17, and flow deflector is inverted V-shaped; The central authorities that the flow deflector top connection of inverted V-shaped and junction are positioned at furnace chamber top; The bottom of flow deflector separates and evenly is arranged on the position of furnace chamber middle part near the furnace chamber wall, and the inside of one of them flow deflector is the vaporization chamber 4 of hollow structure, and the import of vaporization chamber and outlet are separately positioned on the open side two ends of v-shaped structure flow deflector.The liquid fuel feeding mechanism connects vaporization chamber through woven hose 5, non-return device 6, and described non-return device comprises spray orifice 19 (see figure 5)s, and spray orifice is arranged on the junction of vaporization chamber and woven hose, and the diameter of described spray orifice is less than the internal diameter of woven hose.The flow deflector outside is provided with the flow-disturbing ring 18 that is provided with around flow deflector near the position of furnace chamber wall, and the ring body of described flow-disturbing ring is the shape structure in the shape of a spiral.The outlet of vaporization chamber connects the vaporization shower nozzle 7 that is arranged on the furnace chamber bottom, and gaseous fuel jets is arranged on the below of vaporization shower nozzle.The bottom of furnace chamber is provided with air inlet duct 8, is provided with gaseous fuel jets 9 in the air inlet duct, and the upper end of combustion chamber also is provided with stove circle 23, and the combustion chamber junction of stove circle and below is provided with secondary air road 24.Described gas fuel supply device comprises the solid fuel bucket 10 and apparatus of oxygen supply 13 (see figure 2)s that glows; Described apparatus of oxygen supply is the air-blast device that is arranged on the bucket bottom of glowing, the V-shaped structure in bottom of the bucket that glows, and described ignition device 12 is for being arranged on the heating tube of v-shaped structure bottom; The bottom of v-shaped structure connects ash hole 14; Glowing also is provided with fire door 25 on the bucket wall of bucket bottom, and exhanst gas outlet is arranged on the seal cover of the bucket that glows, and all the other are identical with embodiment 1.
The below of the air inlet duct of embodiment 3 is connected with flue gas cushion chamber 20 (see figure 6)s, and the flue gas cushion chamber is horn-like structure, the opening of horn-like structure down, the height of flue gas cushion chamber is greater than the height of combustion chamber.Flow deflector is 5; Wherein two flow deflector inside are provided with vaporization chamber; Described vaporization chamber is for being connected in parallel, and the ring body of flow-disturbing ring is coil spring shape in the form of sheets, and the ring body material of flow-disturbing ring is flat flake structure; The helical spring spiral shell of said sheet crack is percent 40 of a said sheet spring outside coil diameter; The helical spring internal diameter of said sheet is percent 30 of a said sheet spring outside coil diameter, and the thickness of sheet helical spring material therefor is 1/10th of sheet helical spring pitch, and all the other are identical with embodiment 2.
The flow deflector of embodiment 4 is 3; The inside of 3 flow deflectors is equipped with vaporization chamber; Described vaporization chamber is for being connected in series, and the ring body of flow-disturbing ring is a coil spring shape, and the cross section of flow-disturbing ring material is circular; Said helical spring spiral shell crack is percent 30 of a said spring outside coil diameter, and all the other are identical with embodiment 2.
During the actual use of fuel combination furnace system, select for use conventional alcohols, oils etc. as liquid fuel, solid fuel adopts dry string fuel such as crop material, cavings, sawdust, branch leaf; The operation principle of liquid fuel evaporation combustion parts is identical with common liquid fuel vaporizing burner; Normally liquid fuel pressurization back is directly got into the vaporization chamber in the stove and accessory through non-return device; And overflow from the vaporization shower nozzle at last, the ignited fuel that will overflow, the heat that fuel combustion produces makes the liquid fuel evaporation in the vaporization chamber; Liquid fuel after the vaporization makes stove and accessory be in fired state through vaporization shower nozzle ejection burning.And solid fuel need put into earlier glow the bucket and compress; Solid fuel 21 volumes that glow after compressing in the bucket are no more than 85% of barrel volume that glows; Put into the bucket and when compressing of glowing at solid fuel, several passages 22 are set in solid fuel, the opening of passage is positioned at solid-fuelled upper surface; It is inner and near solid-fuelled bottom (see figure 2) that the lower end is positioned at solid fuel; An ignition device of opening the bucket bottom of glowing then glows the solid fuel in the bucket, and solid fuel glows and closes ignition device and open apparatus of oxygen supply after the beginning, regulates oxygen-supplying amount and makes the solid fuel in the bucket that glows remain on the state that glows continuously; The air inlet duct of fuel gas such as flue gas bottom appendix, gaseous fuel jets entering stove and accessory that solid fuel glows and produces; And in furnace chamber with the naked light mixed combustion of liquid fuel combustion; Control gets into the flue gas of stove and accessory and the ratio of liquid fuel; The flue gas that gets into stove and accessory is fully burnt, and the volume ratio of flue gas and vaporization back liquid fuel is between 0.5 to 1 usually.
Claims (10)
1. a fuel combination furnace system comprises a stove and accessory and the liquid fuel feeding mechanism that is connected with stove and accessory, and it is characterized in that: described stove and accessory also is connected with gas fuel supply device on (1); Stove and accessory comprises combustion chamber (2); Be provided with furnace chamber (3) in the combustion chamber, be provided with liquid fuel evaporation chamber (4) in the furnace chamber, the liquid fuel feeding mechanism connects vaporization chamber through woven hose (5), non-return device (6); The outlet of vaporization chamber connects the vaporization shower nozzle (7) that is arranged on the furnace chamber bottom; The bottom of furnace chamber is provided with air inlet duct (8), is provided with gaseous fuel jets (9) in the air inlet duct, described gas fuel supply device comprise solid fuel glow the bucket (10) and an apparatus of oxygen supply (13); The glow opening part at barrel top of solid fuel is provided with seal cover (11); The bottom is provided with ignition device (12) and ash hole (14), and the glow top of bucket of solid fuel also is provided with exhanst gas outlet (15), and exhanst gas outlet is connected with gaseous fuel jets through appendix (16).
2. fuel combination furnace system according to claim 1; It is characterized in that described furnace chamber top is provided with some flow deflectors (17); Wherein the inside of at least one flow deflector is the vaporization chamber of hollow structure; The flow deflector outside is provided with the flow-disturbing ring (18) that is provided with around the flow deflector group near the position of furnace chamber wall, and the ring body of described flow-disturbing ring is the shape structure in the shape of a spiral, and the spiral shell crack of said helicoidal structure is percent 25 to percent 55 of a said helicoidal structure external diameter.
3. fuel combination furnace system according to claim 2; It is characterized in that described flow deflector is 3 to 5; Flow deflector is inverted V-shaped; Be provided with vaporization chamber in two or more flow deflectors, described vaporization chamber is that serial or parallel connection connects, and the import of vaporization chamber and outlet are separately positioned on the open side two ends of v-shaped structure flow deflector; The flow deflector top of said inverted V-shaped connects and the junction is positioned at the central authorities on furnace chamber top, and the bottom of flow deflector separately and evenly be arranged on the position of furnace chamber middle part near the furnace chamber wall.
4. fuel combination furnace system according to claim 1; The below that it is characterized in that said air inlet duct is connected with flue gas cushion chamber (20); The flue gas cushion chamber is horn-like structure, the big opening of horn-like structure down, the height of flue gas cushion chamber is greater than the height of combustion chamber.
5. fuel combination furnace system according to claim 1 is characterized in that described non-return device comprises spray orifice (19), and spray orifice is arranged on the junction of vaporization chamber and woven hose, and the diameter of described spray orifice is less than the internal diameter of woven hose.
6. fuel combination furnace system according to claim 1 is characterized in that described gaseous fuel jets is arranged on the below of vaporization shower nozzle.
7. according to claim 2 or 3 described fuel combination furnace systems; The ring body that it is characterized in that the flow-disturbing ring is coil spring shape in the form of sheets; The ring body material of flow-disturbing ring is flat flake structure; The helical spring spiral shell of said sheet crack is percent 30 to percent 50 of a said sheet spring outside coil diameter, and the helical spring internal diameter of said sheet is percent 20 to percent 40 of a said sheet spring outside coil diameter.
8. according to claim 1 or 2 or 3 or 4 or 5 or 6 described fuel combination furnace systems; The V-shaped structure in bucket bottom is characterized in that glowing; Described ignition device is the heating tube that is arranged on the v-shaped structure bottom; The bottom of v-shaped structure connects ash hole, and apparatus of oxygen supply is to be arranged on the air extractor on the appendix or to be arranged on the bucket bottom air-blast device that glows.
9. the combustion method of a fuel combination furnace system according to claim 1 is characterized in that:
A. use liquid fuel and solid fuel simultaneously, wherein solid fuel is the fuel that contains string;
B. liquid fuel pressurization back directly gets into the vaporization chamber in the stove and accessory through non-return device; And overflow from the vaporization shower nozzle at last; The ignited fuel that will overflow; The heat that fuel combustion produces makes the liquid fuel evaporation in the vaporization chamber, and the liquid fuel after the vaporization makes stove and accessory be in fired state through vaporization shower nozzle ejection burning;
C. solid fuel put into glow the bucket and compress, the solid fuel volume after compressing in the bucket that glows is no more than 85% of barrel volume that glows;
D. the ignition device of opening the bucket bottom of glowing glows the solid fuel in the bucket, closes ignition device after solid fuel glows and opens apparatus of oxygen supply, regulates air quantity and makes the solid fuel in the bucket that glows keep the state that glows;
E. the glow flue gas that produces of solid fuel gets into the air inlet duct of stove and accessory through appendix, gaseous fuel jets; And in furnace chamber with the naked light mixed combustion of liquid fuel combustion; Control gets into the flue gas of stove and accessory and the ratio of liquid fuel, and the flue gas that gets into stove and accessory is fully burnt.
10. the combustion method of fuel combination furnace system according to claim 9; It is characterized in that: put into the bucket and when compressing of glowing at solid fuel (21); Several passages (22) are set in solid fuel; The opening of passage is positioned at solid-fuelled upper surface, and the lower end is positioned at solid fuel inside and near solid-fuelled bottom, said flue gas is 0.5 to 1 with the volume ratio of vaporization back liquid fuel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011100010300A CN102116493B (en) | 2011-01-05 | 2011-01-05 | Mixed fuel furnace system and combustion method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100010300A CN102116493B (en) | 2011-01-05 | 2011-01-05 | Mixed fuel furnace system and combustion method |
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| CN102116493A CN102116493A (en) | 2011-07-06 |
| CN102116493B true CN102116493B (en) | 2012-05-23 |
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| CN2011100010300A Expired - Fee Related CN102116493B (en) | 2011-01-05 | 2011-01-05 | Mixed fuel furnace system and combustion method |
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| CN108105790B (en) * | 2017-12-27 | 2019-11-05 | 陕西中轻环境科技有限公司 | Oily sludge glows processing unit |
| CN111594851A (en) * | 2020-06-02 | 2020-08-28 | 重庆科技学院 | Smoldering garbage incineration treatment device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| FR1387027A (en) * | 1963-07-19 | 1965-01-29 | Antargaz | Radiant and convection heating apparatus operating with gaseous or liquid fuels |
| US4408593A (en) * | 1982-05-27 | 1983-10-11 | Nippon Carbureter Co., Ltd. | Liquid fuel combustion apparatus |
| CN2120287U (en) * | 1992-04-16 | 1992-10-28 | 梁六斤 | Household liquid fuel stove with evaporation burner |
| CN2221726Y (en) * | 1995-03-15 | 1996-03-06 | 李泉德 | Oil and gas range |
| CN101126513A (en) * | 2006-08-16 | 2008-02-20 | 吴锦强 | Two in one multifunctional evaporation furnace |
| CN201166400Y (en) * | 2008-01-04 | 2008-12-17 | 张世贵 | Multifunctional violent fire range of synthetic liquid fuel |
| CN201964467U (en) * | 2011-01-05 | 2011-09-07 | 方新成 | Mixed fuel furnace system |
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