CN213840903U - Alcohol-based fuel burner capable of improving heat efficiency - Google Patents

Abstract

The utility model discloses an alcohol-based fuel burner for improving heat efficiency, which belongs to the technical field of alcohol-based burners, and comprises a shell body, wherein the shell body is of a tubular structure with openings at two ends, the inner wall of the shell body is uniformly covered with a heating device, one end of the shell body is a butt joint, and the other end of the shell body is provided with a fan; fuel supply pipe, for inclosed heat-resistant pipe, unsettled inserting is established in the casing, pass whole the casing both ends, the flame direct injection that can make the combustor is on the boiler that needs the heating, with the rapid heating of boiler, and the fuel gasification pipe of this device can heat the gasification with the alcohol group fuel of inside, make nozzle spun alcohol group fuel become gaseous state and burn, combustion efficiency is higher, make the heater can burn sooner rapider, produce a large amount of heat, and this device is all injectd flame in the butt joint, make flame temperature not leak, concentrate and burn the boiler, thereby make the thermal efficiency higher, flame passes through the fan, directly blow to the boiler.

Description

Alcohol-based fuel burner capable of improving heat efficiency

Technical Field

The utility model relates to an alcohol group combustor technical field especially relates to an improve thermal efficiency's alcohol group fuel combustor.

Background

The alcohol-based fuel is prepared by taking methanol as a main body, has single component, low carbon and high oxygen content, can effectively reduce the emission of harmful gas due to sufficient combustion, and is internationally recognized clean energy; the alcohol-based fuel is a cheap and environment-friendly clean energy, is rich in stock and easy to obtain, and is the most potential novel alternative energy; the related department also has full research and publication to develop the methanol fuel to meet the national energy safety.

The alcohol-based fuel has obvious economic comparability, and compared with liquefied gas, diesel oil and kerosene, the alcohol-based fuel has the best characteristic of high thermal efficiency. The alcohol-based fuel is a green and environment-friendly energy source, compared with coal, coal tar, heavy oil, diesel oil and gasoline, the alcohol-based fuel is completely combusted, the heat conversion efficiency is highest, the emission is mainly water and carbon dioxide, and the alcohol-based fuel is the cleanest, most environment-friendly and most potential fuel in the future.

With the gradual application and popularization of alcohol-based fuels in recent years, most of the alcohol-based fuels are generally combusted by using a small stove, and the electric vaporization high-power combustor is used for heating equipment such as industrial boilers, kilns, drying furnaces, large-scale shed cultivation, cultivation heating and the like. The alcohol-based fuel used as the novel fuel of the boiler burner in the current market is a diesel burner directly adopting an atomization combustion principle to replace combustion, the combustion is insufficient, the consumption is large, the cost is high, and all the electric vaporization alcohol-based fuel burners (furnace ends) popularized in the current market are mainly cast aluminum furnace ends.

Based on this, the utility model designs an improve the alcohol group fuel combustor of thermal efficiency to solve above-mentioned problem.

Disclosure of Invention

An object of the utility model is to provide an improve thermal efficiency's alcohol group fuel combustor, the flame direct injection that can make the combustor is on the boiler that needs the heating, with the rapid heating of boiler, and the fuel gasification pipe of this device can heat gasification with inside alcohol group fuel, make nozzle spun alcohol group fuel become the gaseous state and burn, combustion efficiency is higher, make the heater can burn faster more rapidly, produce a large amount of heat, and this device is all injectd flame in the butt joint, make flame temperature not leak, concentrate and burn to the boiler, thereby make the thermal efficiency higher, and the flame that this device produced passes through the fan, directly blow to the boiler, do not heat the casing of self, make the temperature of the flame heating that this device allowed to produce higher, more accord with the demand of industrial boiler.

The utility model discloses a realize like this: an improved thermal efficiency alcohol-based fuel burner comprising:

the shell is of a cylindrical structure with openings at two ends, the inner wall of the shell is uniformly covered with a heating device, one end of the shell is a butt joint, and the other end of the shell is provided with a fan;

the fuel replenishing pipe is a closed heat-resistant pipe, is inserted in the shell in a hanging manner and penetrates through two ends of the whole shell, the inlet end of the fuel replenishing pipe is connected with the output port of the fuel replenishing pump through a fuel replenishing valve, and the outlet of the fuel replenishing pipe is communicated with a plurality of replenishing dispersion pipes;

the fuel gasification pipe is a closed heat-resistant pipe and is uniformly arranged on the inner wall of the heating device in a spiral shape, the outlet end of the fuel gasification pipe is connected with a plurality of gas dispersion pipes, and the inlet end of the fuel gasification pipe is connected with the output port of the gas fuel pump through a gas fuel valve;

the supplementary dispersion pipe and the gas dispersion pipe are both provided with a plurality of nozzles, the nozzles are uniformly distributed in a butt joint of the shell in a non-contact manner, the supplementary dispersion pipe and the gas dispersion pipe are both arranged in the butt joint, the projections of the supplementary dispersion pipe and the gas dispersion pipe are mutually staggered, and an igniter is also arranged in the butt joint;

inlets of the gas fuel pump and the fuel replenishing pump are communicated with an external alcohol-based fuel pipeline through a tee joint;

and the heating device, the fuel replenishing pump, the fuel replenishing valve, the gas fuel pump, the gas fuel valve, the fan and the igniter are electrically connected with the controller.

Further, the fuel replenishing pipe is arranged on the axis of the shell, and the fuel replenishing pipe is not in contact with the heating device.

Further, the butt joint is connected with the boiler through a flange.

Further, a temperature sensor is arranged in the heating device and electrically connected with the controller.

Further, the fan is tightly connected with the shell through bolts.

Further, the fuel replenishing valve and the gas fuel valve are electromagnetic valves, and the heating device is an electric heating coil.

Furthermore, the nozzles are uniformly distributed on the same cross section in the butt joint port in a circular shape, the nozzles are atomizing nozzles, the nozzles spray towards the outer side direction of the shell, and the supplementary dispersion pipe is not in contact with the gas dispersion pipe.

Further, flow meters are arranged between the inlets of the gas fuel pump and the fuel replenishing pump and the external alcohol-based fuel pipe, and the flow meters are electrically connected with the controller.

Furthermore, the tail ends of the fuel replenishing pipe and the fuel gasification pipe are communicated through a communicating pipe, a phase communicating valve is arranged on the phase communicating pipe, and the phase communicating valve is an electromagnetic valve.

The utility model has the advantages that: 1. the utility model gasifies the alcohol-based fuel through the fuel gasification pipe and the gas fuel pump, so that the alcohol-based fuel in a gas state can be fully combusted, atomization is not performed, the gas is easier to combust, and higher thermal efficiency is achieved;

2. the device not only burns gasified alcohol-based fuel to heat the boiler, but also directly increases fuel at the burning port through the fuel replenishing pipe when the boiler needs higher temperature, directly sprays liquid alcohol-based fuel into mist, burns through the state of gas mist mixing, more fuel burns to generate more heat, and the burning is quicker because of the existence of gas alcohol-based fuel, the heat generated in unit time is larger, and two different pipelines are separately controlled, so that the fuel feeding amount can be adjusted, and the firepower is adjusted;

3. the fan blows air at the other end to send air or high oxygen into the shell, so that the combustion is more sufficient, the flame can be directly blown to the boiler, the flame is ensured to only heat the boiler, the heat is concentrated on the part to be combusted, the heat is more concentrated, and the heat efficiency is higher;

4. the device has a plurality of nozzles which are uniformly distributed on the butt joint ports and annularly face the boiler, so that the alcohol-based fuel has larger and more uniform injection quantity at the same time, wider coverage, more uniform heating surface and better heating effect;

5. the combustion position of this device is not in the casing, also not facing the pipeline for this device itself can not receive very big heat, has avoided the device directly to receive the fire roast, makes the life of this device longer.

Drawings

The invention will be further described with reference to the following examples with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall internal structure of the present invention;

FIG. 2 is a front view of the gas distribution tubes, supplemental distribution tubes and nozzle distribution of the present invention;

FIG. 3 is a schematic view of the exterior of the housing of the present invention;

fig. 4 is a schematic diagram of the distribution of the gas dispersion pipe, the supplementary dispersion pipe and the nozzles of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1-shell, 11-heating device, 12-temperature sensor, 2-fuel supplement pipe, 21-fuel supplement pump, 22-fuel supplement valve, 23-supplement dispersion pipe, 3-fuel gasification pipe, 31-gas fuel pump, 32-gas fuel valve, 33-gas dispersion pipe, 34-phase through valve, 35-phase through pipe, 4-blower, 5-butt joint, 51-nozzle, 52-igniter, 6-flowmeter, 7-controller.

Detailed Description

Referring to fig. 1 to 4, the present invention provides a technical solution: an improved thermal efficiency alcohol-based fuel burner comprising:

the shell 1 is of a cylindrical structure with two open ends, the inner wall of the shell is uniformly covered with a heating device 11, one end of the shell is a butt joint 5, and the other end of the shell is provided with a fan 4;

the fuel replenishing pipe 2 is a closed heat-resistant pipe, is inserted in the shell 1 in a hanging manner, penetrates through two ends of the whole shell 1, is connected with an output port of a fuel replenishing pump 21 through a fuel replenishing valve 22 at an inlet end, and is communicated with a plurality of replenishing dispersion pipes 23 at an outlet;

the fuel gasification pipe 3 is a closed heat-resistant pipe, is uniformly arranged on the inner wall of the heating device 11 in a spiral shape, the outlet end of the fuel gasification pipe is connected with a plurality of gas dispersion pipes 33, and the inlet end of the fuel gasification pipe is connected with the output port of the gas fuel pump 31 through a gas fuel valve 32;

the supplementary dispersion pipe 23 and the gas dispersion pipe 33 are both provided with a plurality of nozzles 51, the plurality of nozzles 51 are uniformly distributed in the butt joint port 5 of the shell 1 without contacting, the supplementary dispersion pipe 23 and the gas dispersion pipe 33 are both arranged in the butt joint port 5, the supplementary dispersion pipe 23 and the gas dispersion pipe 33 are staggered in projection, and an igniter 52 is also arranged in the butt joint port 5;

the inlets of the gas fuel pump 31 and the fuel replenishing pump 21 are communicated with an external alcohol-based fuel pipeline through a tee joint;

the controller 7, the heating device 11, the fuel replenishing pump 21, the fuel replenishing valve 22, the gas fuel pump 31, the gas fuel valve 32, the fan 4 and the igniter 52 are all electrically connected with the controller 7, the flame of the burner can be directly sprayed on a boiler needing to be heated, the boiler can be rapidly heated, the fuel gasification pipe 3 of the device can heat and gasify the internal alcohol-based fuel, the alcohol-based fuel sprayed by the nozzle 51 is changed into a gas state for combustion, the combustion efficiency is higher, the heater can be rapidly and rapidly combusted to generate a large amount of heat, the fuel replenishing pipe 2 can be used for spraying the liquid alcohol-based fuel, the combustion substances are more, the device can be randomly switched and can be used together, the using modes are more, the proper modes can be selected for use, and the device limits the flame in the butt joint 5 so that the temperature of the flame does not leak, concentrate and burn the boiler to make the thermal efficiency higher, and the flame that this device produced passes through fan 4, directly blows to the boiler, does not heat the casing of self, makes the temperature that the flame that this device allowed to produce heated higher, more accords with the demand of industrial boiler.

The fuel replenishing pipe 2 is erected on the axis of the shell 1, the fuel replenishing pipe 2 is not in contact with the heating device 11, the fuel replenishing pipe 2 is prevented from being heated and gasified by the heating device 11, and the fuel replenishing pipe 2 needs to convey liquid alcohol-based fuel, so that the burning fuel quantity is larger;

the butt joint port 5 is connected with the boiler through a flange, so that the connection is stable, flame is restrained, heat is concentrated, wind directly blows an air outlet on the outer side of the boiler to blow away, flame is not influenced, flame can be restrained, and the heat utilization efficiency is higher;

a temperature sensor 12 is arranged in the heating device 11, the temperature sensor 12 is electrically connected with the controller 7, so that the alcohol-based fuel can be changed into gas through the heating device 11, and the control is more convenient through the controller 7;

the fan 4 is tightly connected with the shell 1 through bolts and tightly installed, so that fuel and flame are continuously blown to the boiler by the fan 4;

the fuel replenishing valve 22 and the gas fuel valve 32 are electromagnetic valves, and the heating device 11 is an electric heating coil, so that the fuel gasification pipe 3 can be conveniently heated and can be more conveniently controlled by the controller 7; the electric heating coil can be heated by direct current or alternating current, so that the electric heating coil is more convenient to use and install and safer.

The nozzles 51 are uniformly distributed on the same cross section in the butt joint port 5 in a circular shape, the nozzles 51 are atomizing nozzles, the nozzles 51 spray towards the outer side direction of the shell 1, and the supplementary dispersion pipe 23 is not in contact with the gas dispersion pipe 33, so that the liquid or gas alcohol-based fuel is sprayed more uniformly in the butt joint port 5, the distribution is wider, and the heating effect is better;

a flow meter 6 is also arranged between the inlets of the gas fuel pump 31 and the fuel replenishing pump 21 and the external alcohol-based fuel pipe, the flow meter 6 is electrically connected with the controller 7, and the total flow of the fuel is recorded through the controller 7, so that the usage amount of the fuel can be conveniently recorded and checked;

the tail ends of the fuel replenishing pipe 2 and the fuel gasification pipe 3 are communicated through a communicating pipe 35, a communicating valve 34 is arranged on the communicating pipe 35, and the communicating valve 34 is an electromagnetic valve, so that the fuel replenishing pipe (2) and the fuel gasification pipe (3) can be communicated or isolated through opening and closing of the communicating valve 34, the device can independently spray alcohol-based gas, liquid and oil-based liquid, and can be used for spraying the alcohol-based liquid and the oil mist mixture of the alcohol-based fuel can be mixed and sprayed.

In a specific embodiment of the present invention:

the embodiment of the utility model provides an improve thermal efficiency's alcohol group fuel combustor is provided, the utility model provides a technical problem be:

1. when the alcohol-based fuel is combusted, if the combustion is insufficient, the heat value is low, the combustion energy consumption is high, and the exhaust gas discharged after the combustion can also seriously exceed the standard;

2. liquid at normal temperature, uneven combustion, low heat efficiency, low flame temperature in liquid state, low firepower and low heating speed.

3. In the combustion process, when the temperature reaches about 64.7 ℃, the alcohol-based fuel begins to become gas, the combustion efficiency of the gaseous alcohol-based fuel is high, but when the temperature reaches about 250 ℃, the alcohol-based fuel begins to form carbon to block an air pipe and a furnace end, so that the alcohol-based fuel is very easy to deposit carbon during the combustion in a gasification state and cannot be normally used for a long time;

4. the combustion in the gaseous state is dangerous and it is difficult to control the fire.

The realized technical effects are as follows: 1. the utility model controls the alcohol-based fuel laminating and heating device 11 to advance through the fuel gasification pipe 3 and the gas fuel pump 31, so that the alcohol-based fuel is heated and gasified, the alcohol-based fuel in a gas state can be fully combusted, the alcohol-based fuel is gasified instead of atomized, and the gas is easier to combust, thereby achieving higher thermal efficiency;

2. the device not only has gasified alcohol-based fuel to burn and heat the boiler, but also when the boiler needs higher temperature, liquid alcohol-based fuel is directly added at the burning port through the fuel replenishing pipe 2, the liquid alcohol-based fuel is directly sprayed into mist through the nozzle 51, the combustion is carried out through the state of gas-mist mixing, more fuel is burnt to generate more heat, and because of the existence of gas alcohol-based fuel, the combustion is more rapid and sufficient, more fuel is burnt in unit time, the generated heat is larger, and the fuel replenishing pipe 2 and the fuel gasifying pipe 3 are separately controlled through two different pipelines, so that the fuel feeding amount can be adjusted, thereby adjusting the firepower form, and different alcohol-based fuels can be conveyed, the fuel replenishing pipe 2 conveys liquid fuel, the fuel gasifying pipe 3 conveys gas fuel, the separate control is realized, and the firepower can be controlled, the combustion temperature can be controlled, and the carbon deposition generation condition can be effectively controlled;

3. the blower 4 blows air at the other end of the blower to send air or high oxygen into the shell 1, so that the combustion is more sufficient, meanwhile, the flame can be directly blown to the boiler, the flame is ensured to only heat the boiler, the heat is concentrated on the part to be combusted, the heating power is more concentrated, the heat efficiency is higher, the condition that the heating power of the alcohol-based fuel is insufficient is made up, and the device can be used for the boiler with higher heat demand;

4. the device has a plurality of nozzles 51, the gas dispersion pipes 33 and the supplementary dispersion pipes 23 are arranged in two layers and are not overlapped with each other, the alcohol-based fuel is uniformly distributed on the butt joint port 5 and annularly faces the boiler, so that the injection quantity of the alcohol-based fuel at the same time is larger and more uniform, the combustion is more sufficient, a higher heat value is generated, the coverage is wider, the heating surface is more uniform, the heating effect is better, the fan 4 conveys higher air pressure and directly acts on the alcohol-based fuel sprayed out of the nozzles 51, the high temperature and the combustion cannot occur near the nozzles 51, and carbon deposition cannot be generated easily;

5. the combustion position of this device is not in casing 1, also not facing the pipeline for this device itself can not receive very big heat, has avoided the device directly to receive the fire roast, makes the life of this device longer.

The embodiment of the utility model provides an in technical scheme for solving above-mentioned problem, the general thinking is as follows:

for better understanding of the above technical solutions, the following detailed descriptions will be provided in conjunction with the drawings and the detailed description of the embodiments.

The utility model discloses when the installation preparation, through a high temperature resistant corrosion-resistant metal, generally make a holistic casing 1 with stainless steel, make it can the heat-resisting ability stronger, casing 1 is the cylinder, the inside is hollow, be covered with the electric heat coil on the inner wall and regard as heating device 11, as long as can the even heating all can regard as heating device 11, bend fuel gasification pipe 3 for the heliciform, and the laminating is installed in heating device 11 inboard, it can be enough to ensure that the pipeline between the entry and the export of fuel gasification pipe 3 is heated length on heating device 11, still installed temperature sensor 12 on heating device 11, it can spray to ensure to make alcohol group fuel become gaseous state at fuel gasification pipe 3; in the practice of this embodiment, as shown in fig. 1, the inlet of the fuel vaporizing tube 3 is at the left end of the housing 1, the outlet of the fuel vaporizing tube 3 is connected to the gas distributing tube 23, and the plurality of nozzles 51 on the gas distributing tube 23 spray the gaseous alcohol-based fuel outwards, so that there is enough length to heat the alcohol-based fuel from liquid to gas in the fuel vaporizing tube 3, the inlet of the fuel vaporizing tube 3 is connected to the outlet of the gas fuel pump 31, and a gas fuel valve 32 is further provided between the gas fuel pump 31 and the fuel vaporizing tube 3, the gas fuel valve 32 is an electromagnetic valve and is controlled by the controller 7;

the fuel-gasifying tube 3 and the fuel-replenishing tube 2 are both copper tubes or stainless steel tubes, are required to be resistant to high temperatures and corrosion, to avoid corrosion by alcohol-based fuels, and require the use of materials for heat transfer blocks.

Then, a fuel replenishing pipe 2 is erected on an intermediate axis of the casing 1, an inlet of the same fuel replenishing pipe 2 is connected with an output port of a fuel replenishing pump 21, a fuel replenishing valve 22 is further arranged between the fuel replenishing pipe 2 and the fuel replenishing pump 21, and the fuel replenishing valve 22 is also an electromagnetic valve and is controlled by the controller 7;

the fuel replenishing pipe 2 is not contacted with the heating device 11, the alcohol-based fuel sprayed from the fuel replenishing pipe 2 is ensured to be liquid, the outlet of the fuel replenishing pipe 2 is arranged in the butt joint port 5, and a supplementary dispersion pipe 33 is connected, the gas dispersion pipe 23 and the supplementary dispersion pipe 33 are distributed in a shape as shown in FIG. 4, and a plurality of nozzles 51 are installed on both the gas distribution pipe 23 and the supplementary distribution pipe 33, all the nozzles 51 are distributed on the same circumference with the fuel supplementary pipe 2 as the center, and covers the entire interior of the docking port 5, while requiring all of the nozzles 51 to be on the same cross-section of the docking port 5, ensuring a uniform spray, an igniter 52 is arranged in the butt joint port 5 and is used for igniting the alcohol-based fuel, all the nozzles 51 are aligned to the direction of the boiler, namely, towards the outer side of the shell 1, and the butt joint port 5 is made of stainless steel materials, is heat-resistant and is stably connected;

the inlets of the fuel replenishing pump 21 and the gas fuel pump 31 are connected to a total fuel inlet pipe through a tee joint, the flowmeter 6 is arranged on the total fuel inlet pipe, the controller 7 is electrically connected with the heating device 11, the temperature sensor 12, the fuel replenishing pump 21, the fuel replenishing valve 22, the gas fuel pump 31, the gas fuel valve 32, the fan 4, the flowmeter 6 and the igniter 52, the electric connections are controlled through the controller 7, the controller 7 is also in data connection with a pressure sensor in the heated boiler or the device to control the fire power through pressure parameters in the boiler, the electric connections can be made with the temperature sensor in the hot blast stove, different furnaces are connected with different sensors, and environment variables are in data connection with the controller 7 and contact feedback information according to actual conditions.

The utility model discloses when using, preheat earlier heating device 11 and heat up, make fuel vaporizer 3 temperature rise, look over heating device 11's temperature through temperature sensor 12, ensure that the temperature that temperature sensor 12 monitored is not less than 64.7 ℃, because the boiling point of the alcohol group fuel of using often now is 64.7 ℃, and this device heating device 11 is the best between 80 ℃ -88 ℃, the temperature that this embodiment indicates is the methanol fuel temperature that the market is commonly used, so long as the alcohol group fuel passes through in fuel vaporizer 3, will gasify rapidly, then controller 7 control gas fuel pump 31 opens and pumps the fuel in the alcohol group fuel holding vessel and get into fuel vaporizer 3 in, open solenoid valve gas fuel valve 32, fuel is pumped into fuel vaporizer 3 rapidly, fuel is heated by heating device 11, flow in spiral helicine fuel vaporizer 3, because the heating distance is longer, therefore, the alcohol-based fuel at the outlet of the fuel gasification pipe 3 can be changed into gas, the alcohol-based fuel enters the gas dispersion pipe 23 and is separated through the gas dispersion pipe 23, so that the alcohol-based fuel is uniformly sprayed into the butt joint port 5 through the nozzle 51 and is uniformly covered, then the controller 7 enables the igniter 52 to emit electric sparks, the alcohol-based fuel is ignited when encountering fire and is easily ignited, the fan 4 is continuously opened to blow the fuel to the boiler direction, the flame is only attached to the boiler to be combusted, the device can not be combusted, the boiler is cool at the moment and needs to be heated, the steam pressure sensor in the boiler is also in a low-pressure state, the controller 7 controls the fuel supplement pump 21 to be opened, the fuel supplement valve 22 is also opened, and the liquid alcohol-based fuel can be pumped into the fuel supplement pipe 2, the fuel in the fuel replenishing pipe 2 can not be heated by a heating device to become gas, and can be liquid all the time, because the liquid has higher density and the same flow rate, more fuel is sent out, the combustion is more facilitated, more fuel is supplied, the heat is larger, the alcohol-based fuel passes through the fuel replenishing pipe 2 and passes through the replenishing dispersion pipe 33 to be sprayed out from the nozzle 51 of the replenishing dispersion pipe 33, the alcohol-based fuel forms liquid fog, and the fuel is blown to the boiler by the fan 4, so that the fuel is more, and the boiler is heated more quickly;

when the phase through pipe 35 passes through the phase through valve 34, when the phase through valve 34 is opened, the alcohol-based fuel mixed with gas is sprayed out through all the nozzles 51 through the gas dispersion pipe 23 and the supplementary dispersion pipe 33, and the fuel is blown to the boiler by the fan 4, so that more fuel is supplied and the boiler is heated more quickly;

by activating the phase-through valve 34 and independently activating the gas fuel pump 31 or the fuel supplement pump 21, only the liquid in the form of spray or the whole fuel in the form of spray can be sprayed, the spraying amount is larger, namely double fuel is sprayed, and the combustion effect is better.

Because the interface 5 is connected with the boiler through the flange, the constraint on flame is stronger, heat is prevented from being dissipated outside, the nozzle 51 is only burnt outside the boiler, the heat efficiency is higher, the heating mode ensures that carbon is not easily accumulated on the nozzle, more fuel is provided, the fuel mixed in a gas state and a liquid state is more sufficiently burnt after being dispersed, the provided heat is larger, and the condition that the alcohol-based fuel is insufficient in heat is compensated;

the fuel consumption is checked through the flowmeter 6, and the consumption and the use time data are stored and uploaded, which is a relatively mature technology, and does not belong to the protection content of the device, and is not repeated, when the device heats a boiler, the boiler burns to a certain degree, the steam pressure in the boiler is increased, and the pressure sensor changes the pressure, the fuel replenishing pipe 2 can be independently controlled to provide liquid fuel for burning, and also can be independently controlled, the fuel gasification pipe 3 provides gas fuel for burning, and only the controller 7 needs to respectively control the opening and closing of the fuel replenishing pump 21, the fuel replenishing valve 22, the gas fuel pump 31 and the gas fuel valve 32, so that the device has a simple structure, can control the firepower and is very convenient; if the device is connected with a hot blast stove, the steam pressure is not monitored, but the temperature change in the hot blast stove is monitored, and a temperature sensor in the hot blast stove is connected with a controller 7 of the device.

Although specific embodiments of the present invention have been described, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the claims appended hereto.

Claims (9)

1. An alcohol-based fuel burner with improved thermal efficiency, comprising:

the shell (1) is of a cylindrical structure with openings at two ends, the inner wall of the shell is uniformly covered with a heating device (11), one end of the shell is provided with a butt joint (5), and the other end of the shell is provided with a fan (4);

the fuel replenishing pipe (2) is a closed heat-resistant pipe, is inserted in the shell (1) in a hanging manner, penetrates through two ends of the whole shell (1), the inlet end of the fuel replenishing pipe is connected with the output port of the fuel replenishing pump (21) through a fuel replenishing valve (22), and the outlet of the fuel replenishing pipe is communicated with a plurality of replenishing dispersion pipes (23);

the fuel gasification pipe (3) is a closed heat-resistant pipe, is uniformly arranged on the inner wall of the heating device (11) in a spiral shape, the outlet end of the fuel gasification pipe is connected with a plurality of gas dispersion pipes (33), and the inlet end of the fuel gasification pipe is connected with the output port of a gas fuel pump (31) through a gas fuel valve (32);

the supplementary dispersion pipe (23) and the gas dispersion pipe (33) are both provided with a plurality of nozzles (51), the nozzles (51) are uniformly distributed in the butt joint port (5) of the shell (1) in a non-contact manner, the supplementary dispersion pipe (23) and the gas dispersion pipe (33) are both arranged in the butt joint port (5), the projections of the supplementary dispersion pipe (23) and the gas dispersion pipe (33) are mutually staggered, and an igniter (52) is also arranged in the butt joint port (5);

inlets of the gas fuel pump (31) and the fuel replenishing pump (21) are communicated with an external alcohol-based fuel pipeline through a tee joint;

and the controller (7), the heating device (11), the fuel replenishing pump (21), the fuel replenishing valve (22), the gas fuel pump (31), the gas fuel valve (32), the fan (4) and the igniter (52) are all electrically connected with the controller (7).

2. A thermal efficiency enhanced alcohol-based fuel burner as claimed in claim 1, wherein: the fuel supply pipe (2) is arranged on the axis of the shell (1), and the fuel supply pipe (2) is not in contact with the heating device (11).

3. A thermal efficiency enhanced alcohol-based fuel burner as claimed in claim 1, wherein: the butt joint (5) is connected with the boiler through a flange.

4. A thermal efficiency enhanced alcohol-based fuel burner as claimed in claim 1, wherein: a temperature sensor (12) is arranged in the heating device (11), and the temperature sensor (12) is electrically connected with the controller (7).

5. A thermal efficiency enhanced alcohol-based fuel burner as claimed in claim 1, wherein: the fan (4) is tightly connected with the shell (1) through bolts.

6. A thermal efficiency enhanced alcohol-based fuel burner as claimed in claim 1, wherein: the fuel replenishing valve (22) and the gaseous fuel valve (32) are electromagnetic valves, and the heating device (11) is an electric coil.

7. A thermal efficiency enhanced alcohol-based fuel burner as claimed in claim 1, wherein: the nozzle (51) is circularly and uniformly distributed on the same cross section in the butt joint port (5), the nozzle (51) is an atomizing nozzle, the nozzle (51) sprays towards the outer side direction of the shell (1), and the supplementary dispersion pipe (23) is not in contact with the gas dispersion pipe (33).

8. A thermal efficiency enhanced alcohol-based fuel burner as claimed in claim 1, wherein: a flow meter (6) is further installed between the inlets of the gas fuel pump (31) and the fuel supplement pump (21) and the external alcohol-based fuel pipe, and the flow meter (6) is electrically connected with the controller (7).

9. A thermal efficiency enhanced alcohol-based fuel burner as claimed in claim 1, wherein: the tail ends of the fuel replenishing pipe (2) and the fuel gasification pipe (3) are communicated through a phase communicating pipe (35), a phase communicating valve (34) is arranged on the phase communicating pipe (35), and the phase communicating valve (34) is an electromagnetic valve.

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