CN102967048B - Indirect hot-air furnace using alcohol base liquid fuels - Google Patents
Indirect hot-air furnace using alcohol base liquid fuels Download PDFInfo
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- CN102967048B CN102967048B CN201210541941.7A CN201210541941A CN102967048B CN 102967048 B CN102967048 B CN 102967048B CN 201210541941 A CN201210541941 A CN 201210541941A CN 102967048 B CN102967048 B CN 102967048B
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Abstract
The invention discloses an indirect hot-air furnace using alcohol base liquid fuels, which comprises a furnace body, wherein a combustion chamber and a heat exchange chamber are arranged in the furnace body, an air inlet, an air outlet and a smoke outlet are formed in the furnace body, and a distributed alcohol base liquid fuel burner and a fuel supply device for providing alcohol base liquid fuels and combustion-supporting gas for the distributed alcohol base liquid fuel burner are arranged in the combustion chamber; and at least two groups of heat exchangers are arranged in the heat exchange chamber in parallel in the conduction direction of hot air generated by the combustion chamber, wherein a hot air inlet and a hot air outlet are formed in each group of heat exchanger, a hot air diversion channel for allowing the heat-exchange air to circulate is arranged between the hot air outlets and the hot air inlets of each two adjacent groups of heat exchangers, the air inlet is communicated with the hot air inlet of the group of heat exchanger which is farthest from the combustion chamber, a blowing unit is arranged at the air inlet, and the air outlet is communicated with the hot air outlet of the group of heat exchanger which is closest to the combustion chamber.
Description
Technical field
The invention belongs to the fluid heater technical field of heat-generating device, concrete is a kind of indirect hot air stove using alcohol radical liquid fuel.
Background technology
Industrial hot-air stove is that the hot blast of having many uses provides equipment, be divided into direct-type hot-blast stove and indirect hot air stove, indirect hot air stove is mainly used in dry do not allow contaminated material or being applied to the lower heat sensitive material of temperature, as fields such as food-baking, pharmacy, synthetic resin, fine chemistry industries.
Hot-blast stove adds hot-air by the heat exchanger of the various ways such as fuel combustion or electric energy, and then provide the fluid heater of hot blast.Because electric energy belongs to secondary energy sources, use cost is high, so industrial hot-air stove is widely used remain traditional fuel, as coal, diesel oil, combustion gas etc., but owing to using the fire coal of traditional fuel, warm air oil furnace not only at the bottom of the thermal efficiency, and environmental pollution is serious, it uses and is subject to more and more restriction, and when gas pollution is slightly smaller, it uses again by the limitation of feed region.
Coal traditional on the other hand, diesel combustion can produce a large amount of oxysulfides, corrosion can be caused to the hardware of heat exchanger, the critical component of indirect hot air stove is exactly heat exchanger, inefficacy is damaged by flue gas premature corrosion in order to prevent heat exchanger, the thickness of the heat exchanger material in this kind of hot-blast stove must increase, this must reduce the heat exchange efficiency of heat exchanger, and the technological development therefore using the new forms of energy substituting traditional fuel in hot-blast stove is exactly very necessary thing.
Alcohol radical liquid fuel is a kind of liquid fuel of economic environmental protection, can as traditional fuel substitute, and use in hot-blast stove, along with widely using of alcohol radical liquid fuel, industrial trade it is also proposed higher requirement to the combustion technology of alcohol radical liquid fuel and application apparatus.
In view of this, the present invention is intended to explore a kind of indirect hot air stove using alcohol radical liquid fuel, and this indirect hot air stove can not only meet the instructions for use of alcohol radical liquid fuel, but also has the advantage that heat exchange efficiency is high and environmental pollution is little.
Summary of the invention
The technical problem to be solved in the present invention proposes a kind of indirect hot air stove using alcohol radical liquid fuel, and this indirect hot air stove can not only meet the instructions for use of alcohol radical liquid fuel, but also have the advantage that heat exchange efficiency is high and environmental pollution is little.
Realize above-mentioned technical purpose, the present invention uses the indirect hot air stove of alcohol radical liquid fuel, comprises body of heater, is provided with combustion chamber and heat-exchanging chamber in described body of heater, and described body of heater is provided with air intake, air outlet slit and exhanst gas outlet;
Collecting and distributing type alcohol group liquid fuel burner is provided with and for providing the fuel supply device of alcohol radical liquid fuel, combustion-supporting gas to described collecting and distributing type alcohol group liquid fuel burner in described combustion chamber;
The heat exchanger that thermal current conduction orientation that at least two groups produce along described combustion chamber is set up in parallel is provided with in described heat-exchanging chamber, each is organized on described heat exchanger and is equipped with hot-wind inlet and hot-blast outlet, and the hot blast be provided with between the hot-blast outlet of two adjacent groups heat exchanger and hot-wind inlet for heat exchange air circulation turns to runner, described air intake communicates with the hot-wind inlet apart from described combustion chamber one group of heat exchanger farthest, and described air intake is provided with air-blast device, described air outlet slit communicates with the hot-blast outlet of nearest apart from described combustion chamber one group of heat exchanger.
Further, described fuel supply device comprises fuel inlet pipe for injecting alcohol radical liquid fuel and to be positioned at below described fuel inlet pipe and combustion-supporting gas entry grates for injecting combustion-supporting gas.
Further, described air intake is provided with entrance Taper Pipe, and the diameter of described entrance Taper Pipe increases gradually along the airflow direction of heat exchange air.
Further, described air outlet slit is provided with exit cone, and the diameter of described exit cone reduces gradually along the airflow direction of heat exchange air.
Further, described heat exchanger comprises heat exchanger tube, and described heat exchanger tube is the band fin of the rounded or odd-shaped cross section in cross section or not finned heating resisting metal pipe.
Further, heat-insulation layer is provided with in described body of heater.
Further, described heat-exchanging chamber is positioned at the top of described combustion chamber, and described heat exchanger is arranged in described heat-exchanging chamber along vertical direction, and described exhanst gas outlet is positioned at the top of described body of heater.
Beneficial effect of the present invention is:
The indirect hot air stove of use alcohol radical liquid fuel of the present invention, by arranging collecting and distributing type alcohol group liquid fuel burner in combustion chamber, can be used in the alcohol radical liquid fuel that burns, and is only H due to alcohol radical liquid fuel combustion product
2o and CO
2, there is no flue dust, do not cause the etchant gas of Heat-exchanger Corrosion, therefore the wall thickness of the heat exchanger tube of heat exchanger can arrange thinner, can heat exchanger effectiveness be improved, both environmental protection and energy saving, extend service life again, and can use cost be reduced;
The heat exchanger that the thermal current conduction orientation produced along combustion chamber by arranging at least two groups in heat-exchanging chamber is set up in parallel, heat exchange air enters from the hot-wind inlet of distance combustion chamber heat exchanger farthest, then runner is turned to by each group of heat exchanger and hot blast successively, continuous participation heat exchange, the utilization rate of waste heat of combustion product gases can be improved, reduce the temperature of discharging flue gas, improve the efficiency of utilization of fuel.
Vertical structure above combustion chamber is positioned at by the indirect hot air stove of use alcohol radical liquid fuel of the present invention being set to heat-exchanging chamber, can self-assembling formation negative-pressure firing condition, therefore adopt during collecting and distributing type alcohol group liquid fuel burner and burn completely without the need to combustion-supporting just can the reaching of air blast, owing to there is no unnecessary air distribution, improve efficiency of combustion.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention uses the indirect hot air stove embodiment of alcohol radical liquid fuel.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.
As shown in Figure 1, the structural representation of the indirect hot air stove embodiment of alcohol radical liquid fuel is used for the present invention.The present embodiment uses the indirect hot air stove of alcohol radical liquid fuel, and comprise body of heater 1, be provided with combustion chamber 2 and heat-exchanging chamber 3 in body of heater 1, body of heater 1 is provided with air intake 4, air outlet slit 5 and exhanst gas outlet 6.
Collecting and distributing type alcohol group liquid fuel burner 7 is provided with and for providing the fuel supply device of alcohol radical liquid fuel, combustion-supporting gas to collecting and distributing type alcohol group liquid fuel burner 7 in combustion chamber 2.The fuel supply device of the present embodiment comprises the fuel inlet pipe 8 for injecting alcohol radical liquid fuel and to be positioned at below fuel inlet pipe 8 and combustion-supporting gas entry grates 9 for injecting combustion-supporting gas, alcohol radical liquid fuel enters combustion chamber by fuel inlet pipe 8, combustion-supporting gas enters combustion chamber by combustion-supporting gas entry grates 9, realizes the Thorough combustion of alcohol radical liquid fuel.
The heat exchanger 10 that thermal current conduction orientation that at least two groups produce along combustion chamber 2 is set up in parallel is provided with in heat-exchanging chamber 3, each group heat exchanger 10 is equipped with hot-wind inlet 10a and hot-blast outlet 10b, and the hot blast be provided with between the hot-blast outlet 10b of two adjacent groups heat exchanger 10 and hot-wind inlet 10a for heat exchange air circulation turns to runner 11, realize the circulation of heat exchange air between each group heat exchanger 10.Air intake 4 communicates with the hot-wind inlet 10a of distance combustion chamber 2 one group of heat exchanger 10 farthest, and air intake 4 is provided with air-blast device 12, the hot-blast outlet 10b of one group of heat exchanger 10 that air outlet slit 5 is nearest with distance combustion chamber 2 communicates, under the effect of air-blast device 12, realize the circulation of heat exchange air.
The indirect hot air stove of the use alcohol radical liquid fuel of the present embodiment, by arranging collecting and distributing type alcohol group liquid fuel burner 7 in combustion chamber 2, can be used in the alcohol radical liquid fuel that burns, and is only H due to alcohol radical liquid fuel combustion product
2o and CO
2, there is no flue dust, do not cause the etchant gas that heat exchanger 10 corrodes, therefore the wall thickness of the heat exchanger tube of heat exchanger 10 can arrange thinner, can heat exchanger effectiveness be improved, both environmental protection and energy saving, extend service life again, and can use cost be reduced;
The heat exchanger 10 that the thermal current conduction orientation produced along combustion chamber 2 by arranging at least two groups in heat-exchanging chamber 3 is set up in parallel, heat exchange air enters from the hot-wind inlet 10a of distance combustion chamber 2 heat exchanger 10 farthest, then runner 11 is turned to by each group of heat exchanger 10 and hot blast successively, continuous participation heat exchange, the utilization rate of waste heat of combustion product gases can be improved, reduce the temperature of discharging flue gas, improve the efficiency of utilization of fuel.
Further, air intake 4 is provided with entrance Taper Pipe 13, the diameter of entrance Taper Pipe 13 increases gradually along the airflow direction of heat exchange air, namely the direction that the diameter of entrance Taper Pipe 13 points to the hot-wind inlet 10a of the heat exchanger 10 corresponding with air intake 4 at air intake 4 increases gradually, and heat exchange air can be made to enter equably in heat exchanger 10.Air outlet slit 5 is provided with exit cone 14, the diameter of exit cone 14 reduces gradually along the airflow direction of heat exchange air, namely the direction that the diameter of exit cone 14 points to air outlet slit 5 at the hot-blast outlet 10b of the heat exchanger 10 corresponding with air outlet slit 5 reduces gradually, effectively can increase output pressure and the speed of heat exchange air.
Further, heat exchanger 10 comprises heat exchanger tube 10c, heat exchanger tube 10c is the band fin of the rounded or odd-shaped cross section in cross section or not finned heating resisting metal pipe, and the heat exchanger tube 10c of the present embodiment is the rounded and finned heating resisting metal pipe in cross section, effectively can improve heat exchange efficiency.
Further, in body of heater 1, be provided with heat-insulation layer 15, effectively can completely cut off body of heater 1 and outside air, prevent the heat leak in body of heater 1.
Further, the indirect hot air stove employing heat-exchanging chamber 3 of the present embodiment use alcohol radical liquid fuel is positioned at the vertical structure above combustion chamber 2, and namely heat exchanger 10 is arranged in heat-exchanging chamber 3 along vertical direction, and exhanst gas outlet 6 is positioned at the top of body of heater 1.The heat exchanger 10 of the present embodiment is set to two groups that are set up in parallel up and down along vertical direction, and hot blast turns to runner 11 to be one and between the hot-blast outlet 10b and the hot-wind inlet 10a of lower floor's heat exchanger 10 of upper strata heat exchanger 10.Be set to heat-exchanging chamber 3 by the indirect hot air stove of the use alcohol radical liquid fuel by the present embodiment and be positioned at vertical structure above combustion chamber 4, can self-assembling formation negative-pressure firing condition, therefore adopt during collecting and distributing type alcohol group liquid fuel burner 7 and burn completely without the need to combustion-supporting just can the reaching of air blast, owing to there is no unnecessary air distribution, improve efficiency of combustion.
The present invention uses the indirect hot air stove of alcohol radical liquid fuel can also be horizontal type structure, and it is identical with above-mentioned embodiment that it implements principle, is not repeated.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (3)
1. use an indirect hot air stove for alcohol radical liquid fuel, comprise body of heater, be provided with combustion chamber and heat-exchanging chamber in described body of heater, described body of heater is provided with air intake, air outlet slit and exhanst gas outlet, it is characterized in that:
Collecting and distributing type alcohol group liquid fuel burner is provided with and for providing the fuel supply device of alcohol radical liquid fuel, combustion-supporting gas to described collecting and distributing type alcohol group liquid fuel burner in described combustion chamber;
The heat exchanger that thermal current conduction orientation that at least two groups produce along described combustion chamber is set up in parallel is provided with in described heat-exchanging chamber, each is organized on described heat exchanger and is equipped with hot-wind inlet and hot-blast outlet, and the hot blast be provided with between the hot-blast outlet of two adjacent groups heat exchanger and hot-wind inlet for heat exchange air circulation turns to runner, described air intake communicates with the hot-wind inlet apart from described combustion chamber one group of heat exchanger farthest, and described air intake is provided with air-blast device, described air outlet slit communicates with the hot-blast outlet of nearest apart from described combustion chamber one group of heat exchanger,
Described air intake is provided with entrance Taper Pipe, and the diameter of described entrance Taper Pipe increases gradually along the airflow direction of heat exchange air;
Described air outlet slit is provided with exit cone, and the diameter of described exit cone reduces gradually along the airflow direction of heat exchange air.
2. use the indirect hot air stove of alcohol radical liquid fuel according to claim 1, it is characterized in that: described heat exchanger comprises heat exchanger tube, described heat exchanger tube is the band fin of the rounded or odd-shaped cross section in cross section or not finned heating resisting metal pipe.
3. use the indirect hot air stove of alcohol radical liquid fuel according to claim 1, it is characterized in that: in described body of heater, be provided with heat-insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210541941.7A CN102967048B (en) | 2012-12-14 | 2012-12-14 | Indirect hot-air furnace using alcohol base liquid fuels |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210541941.7A CN102967048B (en) | 2012-12-14 | 2012-12-14 | Indirect hot-air furnace using alcohol base liquid fuels |
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| CN102967048A CN102967048A (en) | 2013-03-13 |
| CN102967048B true CN102967048B (en) | 2015-06-03 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154519B (en) * | 2014-08-22 | 2016-04-06 | 桂林市淦隆环保科技有限公司 | A kind of alcohol-group fuel steam boiler |
| CN107940979B (en) * | 2017-12-21 | 2023-05-19 | 吉林大学 | Drying hot blast stove equipment and control method thereof |
| CN108507169A (en) * | 2018-03-30 | 2018-09-07 | 宁波金名片能源科技有限公司 | A kind of hot-blast stove |
| CN109506363B (en) * | 2018-11-26 | 2021-04-30 | 尚丹 | Dual-heating natural gas boiler and working method thereof |
| CN111854155A (en) * | 2020-08-21 | 2020-10-30 | 榆林碳氢研究院股份有限公司 | Methanol hot-blast stove using methanol fuel |
| CN111854159A (en) * | 2020-08-21 | 2020-10-30 | 榆林碳氢研究院股份有限公司 | Direct-heating methanol hot-blast stove using methanol fuel and containing induced draft fan |
| CN111854160A (en) * | 2020-08-24 | 2020-10-30 | 榆林碳氢研究院股份有限公司 | Multifunctional methanol hot-blast stove using methanol fuel |
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| CN2152182Y (en) * | 1993-02-03 | 1994-01-05 | 刘仁勇 | Tube changeable combined hot wind furnace |
| CN2568972Y (en) * | 2002-09-16 | 2003-08-27 | 刘泮书 | Combined, multipurpose, energy saving and environmental protection boiler |
| CN202101528U (en) * | 2011-05-24 | 2012-01-04 | 季明樟 | Hot air furnace |
| CN102563855A (en) * | 2010-12-23 | 2012-07-11 | 吴跃增 | Vertical boiler for alcohol base liquid fuel |
| CN202947314U (en) * | 2012-12-14 | 2013-05-22 | 重庆市大为能源有限公司 | Indirect type hot-blast furnace using alcohol-base liquid fuel |
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2012
- 2012-12-14 CN CN201210541941.7A patent/CN102967048B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2152182Y (en) * | 1993-02-03 | 1994-01-05 | 刘仁勇 | Tube changeable combined hot wind furnace |
| CN2568972Y (en) * | 2002-09-16 | 2003-08-27 | 刘泮书 | Combined, multipurpose, energy saving and environmental protection boiler |
| CN102563855A (en) * | 2010-12-23 | 2012-07-11 | 吴跃增 | Vertical boiler for alcohol base liquid fuel |
| CN202101528U (en) * | 2011-05-24 | 2012-01-04 | 季明樟 | Hot air furnace |
| CN202947314U (en) * | 2012-12-14 | 2013-05-22 | 重庆市大为能源有限公司 | Indirect type hot-blast furnace using alcohol-base liquid fuel |
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| CN102967048A (en) | 2013-03-13 |
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