WO2020124928A1

WO2020124928A1 - Small alcohol-based-fuel self-heating vaporization combustion device

Info

Publication number: WO2020124928A1
Application number: PCT/CN2019/085177
Authority: WO
Inventors: 陶积勇; 唐际钢; 卢昌锐; 梁永安; 李雁伦; 莫家国; 罗兆生; 莫宇生; 李力; 赵亚洲; 卿志杰; 曾庆发
Original assignee: 桂林市淦隆环保科技有限公司
Priority date: 2018-12-20
Filing date: 2019-04-30
Publication date: 2020-06-25

Abstract

Provided is a small alcohol-based-fuel self-heating vaporization combustion device, comprising a fuel supply system, an air supply system, an ignition system, a burner, a self-heating vaporization device, and a smart combustion controller (1); the fuel supply system outputs liquid alcohol-based fuel by means of an ignition fuel pipe (2), The self-heating vaporization device expands and thins, from top to bottom, the liquid alcohol-based fuel outputted from the ignition fuel pipe (2); the fuel supply system also outputs liquid alcohol-based fuel to the interior of the self-heating vaporization device by means of a vaporization fuel pipe (3), and the self-heating vaporization device vaporizes the liquid alcohol-based fuel outputted from the vaporized fuel pipe (3) for subsequent combustion. The device uses the outer surface of the self-heating vaporization device as an ignition pulse point, and, under the effect of gravity, thins and expands from top to bottom the liquid surface of the liquid alcohol-based fuel, facilitating successful ignition; the heat generated by the vaporization and combustion of alcohol-based fuel is used to heat the liquid alcohol-based fuel to obtain a vaporization output, and no additional alcohol-based fuel vaporization heat source is required; thus customer requirements for heating a hot-pot stove are satisfied.

Description

Small-scale alcohol-based fuel self-heating vaporization combustion device

Technical field

The invention relates to the field of alcohol-based fuel combustion, in particular to a small self-heating vaporization combustion device for alcohol-based fuel.

Background technique

Hot pot stoves are very commonly used in China. Customers' requirements for heating of hot pot stoves are fast response, adjustable thermal power, and easy movement (portable). At present, the most commonly used hot pot stoves are induction cookers, gas stoves and small can dimethyl ether cassette furnaces. These three kinds of stoves have the characteristics of fast response, but the wire of the induction cooker limits the induction cooker to only the place with power supply; the gas tank and gas pipe connected to the gas stove are inconvenient for customers to use; small canned two The methyl ether cassette furnace achieves the customer's portable needs, but due to the safety factors, the small firepower design and the short use time cannot meet the firepower requirements of the hot pot stove.

At present, domestic liquid alcohol-based fuels are dominated by alcohol-based fuels and are recognized as clean fuels. The density of alcohol-based fuel is 0.791, the melting point is -97.8℃, the boiling point is 64.7℃, the ignition point is 475℃, the specific heat capacity is 2.51kj/kg*K, and the heat of evaporation is 35.32KJ/mol.

There are also a variety of alcohol-based fuel vaporization and combustion devices in China, but none of them can meet the above-mentioned hot pot stove firepower requirements. Taking advantage of the low boiling point of alcohol-based fuel and easy heating and vaporization, a small self-heating vaporization combustion device for alcohol-based fuel is designed to vaporize the alcohol-based fuel and burn the alcohol-based fuel vapor. It is applied to the hot pot stove to satisfy customers' hot pot stove. "Response fast, firepower enough, portable" requirements, bring great convenience to users.

Summary of the invention

In summary, in order to overcome the shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a small self-heating vaporization combustion device of alcohol-based fuel.

The technical solution for solving the above technical problems of the present invention is as follows: A small alcohol-based fuel self-heating vaporization combustion device, including an oil supply system, an air supply system, an ignition system, a burner, a self-heating vaporization device, and an intelligent combustion controller; The self-heating vaporization device is located inside the burner, and the ignition system is connected to a position inside the burner corresponding to the lower outer side of the self-heating vaporization device; the oil supply system is connected to the burner through an ignition oil pipe It also corresponds to the position outside the lower part of the self-heating vaporization device, and then outputs the liquid alcohol-based fuel required for the ignition system to ignite on the lower side wall of the self-heating vaporization device, and the self-heating vaporization device will The liquid alcohol-based fuel output from the ignition tubing expands and thins from top to bottom to improve the ignition success rate; the air supply system is connected to the inside of the burner for outputting air into the burner; the oil supply system It is also connected to the interior of the self-heating vaporization device through a vaporized oil pipe for inputting liquid alcohol-based fuel into the self-heating vaporization device after successful ignition, and the heat generated by the self-heating vaporization device during ignition or during combustion The liquid alcohol-based fuel output from the vaporization oil pipe is vaporized for subsequent combustion; the intelligent combustion controller is located outside the burner and monitors the temperature inside the burner, which is also connected to control the The output of the fuel supply system and the air supply system and the actions of the ignition system, and in different stages, the output of the fuel supply system and the air supply system are controlled according to the temperature inside the burner to improve the ignition success rate And to promote the burning of fuel.

Wherein, the intelligent combustion controller uses the existing chip with the model number of stm32f103c8t6.

The beneficial effects of the invention are:

1. Using the outer surface of the self-heating vaporization device as the ignition pulse point, the liquid surface of the liquid alcohol-based fuel is thinned and expanded from top to bottom under the action of gravity, which is conducive to the success of pulse ignition;

2. Design a self-heating vaporization device, use the heat generated by the alcohol-based fuel vaporization combustion to heat the liquid alcohol-based fuel to obtain the vaporization output, without the need for another alcohol-based fuel vaporization heat source;

3. To meet the customer's requirements for heating the hot pot stove (fast response, adjustable firepower, easy to move).

Based on the above technical solutions, the present invention can also be improved as follows:

Further, the self-heating vaporization device includes an upper annular tube, a transition tube, and a lower conical chamber; the upper annular tube surrounds the upper peripheral position of the burner one circle; the lower conical chamber is located in the burner Inside corresponds to the position below the upper annular tube, and the side wall of the lower conical chamber has a conical structure with a small top and a large bottom to pull the liquid alcohol-based fuel output from the ignition tube under the influence of gravity from above While expanding downward to increase the ignition success rate; the fuel supply system is connected to the inside of the upper annular pipe through the vaporized oil pipe, and the upper annular pipe is connected to the lower conical chamber through the transition pipe to connect all The liquid alcohol-based fuel output from the vaporization oil pipe is delivered to the inside of the lower conical chamber and vaporized by heat generated during ignition or combustion; the side wall of the lower conical chamber is provided with an alcohol-based fuel to be vaporized Pores that are discharged into the burner for combustion.

The beneficial effects of adopting the above further scheme are: on the one hand, the side wall of the lower conical chamber is used as an ignition pulse point to realize the thinning and expansion of the liquid alcohol-based fuel liquid surface from top to bottom under the action of gravity; on the other hand, The liquid alcohol-based fuel is sent to the upper annular tube through the vaporized oil pipe for the first heating and vaporization. The alcohol-based fuel in the vapor-liquid mixed state enters the lower conical chamber through the transition tube and is then heated and vaporized for the second time, which greatly guarantees the liquid The vaporization effect of alcohol-based fuel to achieve normal operation.

Further, the air hole is provided obliquely upward toward the outer side of the lower conical chamber, and the intersection of the center line of the air hole and the upper annular tube is higher than the lower end surface of the upper annular tube to make the upper annular tube For the position of the internal flame in the burning flame.

The beneficial effect of adopting the above further scheme is that the self-heating vaporization device is installed at the root of the flame, that is, the self-heating vaporization device is heated by the internal flame, which ensures the vaporization output effect of the liquid alcohol-based fuel, and also protects the self-heating vaporization device from high-temperature oxidation , To extend the service life of self-heating vaporization device.

Further, the burner includes an outer bladder, an inner bladder, and a necking; the inner bladder is inside the outer bladder, and a space is formed between the inner bladder and the outer bladder to form a sandwich; the air supply The system is connected to the interlayer, and the side wall of the inner liner is provided with an air hole that communicates the interlayer with the inside of the inner liner; To the upper part of the inner bladder, the upper annular tube surrounds the outer circumference of the constriction and corresponds to the position of the top of the interlayer.

Further, a temperature sensor probe is also included; the temperature sensor probe is located inside the liner and used to collect temperature information in real time, and the intelligent combustion controller is connected to the temperature sensor probe through a temperature sensing line for real-time Obtain and monitor the temperature inside the liner.

Further, the oil supply system includes an oil tank, an electromagnetic pump, and an oil supply distribution valve; the oil tank is located outside the outer tank, and its outlet is connected to the electromagnetic pump and the oil supply distribution valve in sequence; the oil supply distribution The first outlet of the valve is connected to the inside of the liner through the ignition oil pipe at a position corresponding to the upper outer side of the lower conical chamber, and the second outlet is connected to the inside of the upper annular pipe through the vaporized oil pipe; The intelligent combustion controller controls the operation of the electromagnetic pump through an electromagnetic pump control line connection, and the intelligent combustion controller also controls the fuel supply distribution valve through a sub-valve output control line connection according to the temperature inside the liner The switch of the two outlets, so that the electromagnetic pump first outputs the liquid alcohol-based fuel required for ignition on the side wall of the lower conical chamber through the fuel supply distribution valve and through the ignition oil pipe, and then The oil supply distribution valve outputs the liquid alcohol-based fuel to be vaporized to the inside of the upper annular pipe through the vaporized oil pipe.

Further, the air supply system includes a fan and an air duct; the fan is located outside the outer tank, which is connected to the interlayer through the air duct; the intelligent combustion controller is based on the temperature inside the inner tank The operation of the fan is controlled through the connection of the fan control line, so that the corresponding air volume is delivered to the interior of the liner during ignition to improve the ignition success rate and promote the rapid combustion of fuel.

Further, the ignition system includes a pulse generator and an ignition needle; the pulse generator is located on the outside of the outer bladder, the ignition needle is located inside the inner bladder at a position corresponding to the outside of the lower cone-shaped outdoor, and The ignition needle is located above the ignition oil pipe; the side wall of the lower conical chamber is provided with a capillary shallow groove that drains the liquid alcohol-based fuel output from the ignition oil pipe to the position of the ignition needle; The output end of the pulse generator is connected to the ignition pin and pulse ignition preheating is performed on the liquid alcohol-based fuel that expands and thins on the side wall of the lower conical chamber through the ignition to achieve ignition; the intelligent combustion The controller controls the operation of the pulse generator through the connection of the ignition control line.

Further, the intelligent combustion controller sets the safe ignition temperature T1, the accelerated ignition temperature T2, and the operating temperature T3 in the liner through the temperature sensing probe according to the characteristics of the alcohol-based fuel, and the T1= 65～75℃, T2=160～170℃, T3=250～280℃.

The beneficial effects of adopting the above further scheme are: setting a safe ignition temperature T1, an accelerated ignition temperature T2 and an operating temperature T3 according to the characteristics of an alcohol-based fuel, to ensure the stable operation of the self-heating vaporization combustion device.

Further, both the ignition oil pipe and the vaporized oil pipe are stainless steel capillaries with an inner diameter≦1.5 mm.

The beneficial effect of using the above further scheme is to ensure the stability of combustion.

BRIEF DESCRIPTION

1 is a schematic diagram of the overall structure of the present invention;

Figure 2 is a schematic structural view of a self-heating vaporization device;

FIG. 3 is a schematic view of the top structure of the lower conical chamber.

In the drawings, the list of parts represented by each reference number is as follows:

1. Intelligent combustion controller, 2. Ignition oil pipe, 3. Vaporization oil pipe, 4. Upper annular pipe, 5. Transition pipe, 6. Lower conical chamber, 7, Pore, 8, Outer liner, 9, Inner liner, 10. Shrinkage, 11, Mezzanine, 12, Air vent, 13, Temperature sensor probe 13 probe, 14, Temperature sensing line, 15, Fuel tank, 16, Electromagnetic pump, 17, Oil supply distribution valve, 18, Electromagnetic Pump control line, 19, fan, 20, air pipe, 21, fan control line, 22, pulse generator, 23, ignition needle, 24, ignition control line, 25, valve output control line, 26, capillary shallow groove.

detailed description

The principles and features of the present invention will be described below in conjunction with the drawings. The examples given are only used to explain the present invention, not to limit the scope of the present invention.

As shown in FIG. 1, a small self-heating vaporization combustion device for an alcohol-based fuel includes an oil supply system, an air supply system, an ignition system, a burner, a self-heating vaporization device, and an intelligent combustion controller 1. The self-heating vaporization device is located inside the burner, and the ignition system is connected to a position inside the burner corresponding to the outer side of the lower portion of the self-heating vaporization device. The fuel supply system is connected to the burner through the ignition oil pipe 2 at a position corresponding to the outer side of the lower part of the self-heating vaporization device, and then output on the lower side wall of the self-heating vaporization device for the ignition system to ignite The liquid alcohol-based fuel is needed, and the self-heating vaporization device expands and thins the liquid alcohol-based fuel output from the ignition oil pipe 2 from top to bottom to improve the ignition success rate. The air supply system is connected to the inside of the burner for outputting air into the burner. The oil supply system is also connected to the interior of the self-heating vaporization device through a vaporized oil pipe 3 for outputting liquid alcohol-based fuel to the interior of the self-heating vaporization device after ignition is successful, and the self-heating vaporization device passes ignition or burns The heat generated in the process vaporizes the liquid alcohol-based fuel output from the vaporized oil pipe 3 for subsequent combustion. In order to ensure combustion stability, both the ignition oil pipe 2 and the vaporized oil pipe 3 are stainless steel capillaries with an inner diameter ≤ 1.5 mm. The intelligent combustion controller 1 is located outside the burner and monitors the temperature inside the burner, as follows: the combustion device further includes a temperature sensor probe 13. The temperature sensor probe 13 is located inside the liner 9 and is used to collect temperature information in real time. The intelligent combustion controller 1 is connected to the temperature sensor probe 13 through a temperature sensing line 14 for real-time acquisition The temperature inside the liner 9 is monitored. The intelligent combustion controller 1 is also connected to control the output of the fuel supply system and the air supply system and the operation of the ignition system through control line connections, and then at different stages according to the temperature inside the burner The output of the fuel supply system and the air supply system is used to improve the ignition success rate and promote the rapid combustion of fuel.

As shown in FIGS. 2 and 3, the self-heating vaporization device includes an upper annular tube 4, a transition tube 5 and a lower conical chamber 6. The upper ring-shaped tube 4 surrounds the upper periphery of the burner in a circle. The lower conical chamber 6 is located in the burner at a position corresponding to the lower annular tube 4, and the side wall of the lower conical chamber 6 is a conical structure with a small upper and a lower large to act under the action of gravity Next, the liquid alcohol-based fuel output from the ignition oil pipe 2 is expanded and thinned from top to bottom to improve the ignition success rate. The oil supply system is connected to the inside of the upper annular pipe 4 through the vaporized oil pipe 3, and the upper annular pipe 4 is connected to the lower conical chamber 6 through the transition pipe 5 to output the vaporized oil pipe 3 The liquid alcohol-based fuel is delivered to the inside of the lower cone chamber 6 and is vaporized by heat generated during ignition or combustion. On the side wall of the lower conical chamber 6 are provided gas holes 7 for discharging the vaporized alcohol-based fuel into the burner for combustion. The air hole 7 is provided obliquely upward toward the outer side of the lower conical chamber 6, and the intersection of the center line of the air hole 7 and the upper annular tube 4 is higher than the lower end surface of the upper annular tube 4 to make the The upper annular tube is at the inner flame position of the burning flame.

The burner includes an outer bladder 8, an inner bladder 9, and a constriction 10. The inner liner 9 is located inside the outer liner 8, and a space is formed between the inner liner 9 and the outer liner 8 to form an interlayer 11. The air supply system is connected to the interlayer 11, and an air hole 12 communicating with the interlayer 11 and the interior of the inner tank 9 is provided on the side wall of the inner tank 9. The constriction 10 is located after the top of the outer bladder 8 contracts inwardly and extends upward to the upper portion of the inner bladder 9, the upper annular tube 4 surrounds the outer periphery of the constriction 10 and corresponds to the interlayer 11 At the top.

The oil supply system includes an oil tank 15, an electromagnetic pump 16 and an oil supply distribution valve 17. The oil tank 15 is located outside the outer tank 8 and its outlet is connected to the electromagnetic pump 16 and the oil supply distribution valve 17 in this order. The first outlet of the fuel supply distribution valve 17 is connected to the inside of the liner 9 corresponding to the upper outer side of the lower conical chamber 6 through the ignition oil pipe 2, and the second outlet thereof passes through the vaporized oil pipe 3 Connect the inside of the upper annular tube 4. The intelligent combustion controller 1 is connected to control the operation of the electromagnetic pump 16 through an electromagnetic pump control line 18, and the intelligent combustion controller 1 is also connected through a sub-valve output control line 24 according to the temperature inside the liner 9 Control the opening and closing of the two outlets of the fuel supply and distribution valve 17, so that the electromagnetic pump 16 first passes through the fuel supply and distribution valve 17 and outputs through the ignition oil pipe 2 on the side wall of the lower conical chamber 6 The liquid alcohol-based fuel required for ignition, then passes through the fuel supply distribution valve 17 and passes through the vaporized oil pipe 3 to the inside of the upper annular pipe 4 to output the liquid alcohol-based fuel to be vaporized.

The air supply system includes a fan 19 and an air duct 20. The fan 19 is located outside the outer bladder 8 and is connected to the interlayer 11 through the air duct 20. The intelligent combustion controller 1 controls the operation of the fan 19 through a fan control line 21 according to the temperature inside the inner liner 9 to further deliver the corresponding amount of air to the inner liner 9 during ignition Improve the ignition success rate and promote the rapid combustion of fuel.

The ignition system includes a pulse generator 22 and an ignition needle 23. The pulse generator 22 is outside the outer bladder 8, the ignition needle 23 is positioned inside the inner bladder 9 corresponding to the outer side of the lower conical chamber 6, and the ignition needle 23 is in the ignition Above the oil pipe 2. The side wall of the lower cone-shaped chamber 6 is provided with a capillary shallow groove 26 that drains the liquid alcohol-based fuel output from the ignition oil pipe 2 to the position of the ignition needle 23. The output end of the pulse generator 22 is connected to the ignition pin 23 and pulsed preheating of the liquid alcohol-based fuel expanded and thinned on the side wall of the lower cone chamber 6 through the ignition pin 23 to achieve ignition. The intelligent combustion controller 1 is connected to control the operation of the pulse generator 22 through the ignition control line 24.

The working principle of the self-heating vaporization combustion device is as follows:

First, the intelligent combustion controller 1 controls the operation of the electromagnetic pump 16 through the electromagnetic pump control line 18, and at the same time controls the ignition channel of the fuel supply distribution valve 17 through the sub-valve output control line 25, that is, the first outlet connected to the ignition oil pipe 2 is opened, and the The liquid alcohol-based fuel in the fuel tank 15 is sent to the upper part of the outer surface of the side wall of the lower cone 6 through the ignition oil pipe 2 and is enlarged and thinned. Next, the intelligent combustion controller 1 controls the operation of the pulse generator 22 through the ignition control line 21, and ignites the liquid alcohol-based fuel expanded and thinned on the outer surface of the side wall of the lower cone chamber 6 through the ignition needle 23. After the ignition is successful, the intelligent combustion controller 1 controls the ignition channel of the fuel supply and distribution valve 17 to close through the sub-valve output control line 25. The vaporization channel, that is, the second outlet connected to the vaporization oil pipe 3 is opened, and the liquid alcohol base in the fuel tank 15 is opened. The fuel is sent to the upper annular tube 4 of the self-heating vaporizing device through the vaporized oil pipe 3 and is heated and vaporized for the first time by the heat generated by the ignition process. The alcohol-based fuel in the vapor-liquid mixed state enters the lower annular tube 4 through the transition pipe 5 In the conical chamber 6, the heat generated by the ignition process in the lower conical chamber 6 is heated and vaporized a second time to ensure that the alcohol-based fuel is completely vaporized to promote combustion. Then, the fully vaporized alcohol-based fuel is ejected from the air holes 7 on the side wall of the lower conical chamber 6 to burn, and normal operation is achieved. After that, the liquid alcohol-based fuel sent to the self-heating vaporization device through the vaporized oil pipe 3 is heated and vaporized twice by the heat generated by the combustion process in the upper annular tube 4 and the lower conical chamber 6, respectively. When small oil quantity is input, avoid mixing air into the oil pipe. The ignition oil pipe 2 and the vaporization oil pipe 3 are preferably made of stainless steel capillary (inner diameter≦1.5mm), which is resistant to high temperature oxidation and corrosion, and prolongs the service life.

Ignition stage: Set the safe temperature T1 (T1=65～75℃) in the inner tank 9 through the intelligent combustion controller 1, that is, when the temperature is lower than T1, the ignition procedure is allowed to start. The temperature in the inner tank 9 is obtained through the temperature sensor probe 13 probe 13 to ensure that the ignition process is started under safe conditions: the intelligent combustion controller 1 controls the pulse generator 22 to work, and the ignition needle 23 expands on the outer surface of the lower cone chamber 6 The thinned liquid alcohol-based fuel performs pulse discharge preheating. At the same time, the intelligent combustion controller 1 controls the electromagnetic pump 16 to operate at variable frequency. The intelligent combustion controller 1 controls the fuel supply distribution valve 17 to open the ignition channel and the vaporization channel at the same time. The fuel required for proper ignition is sent to the upper end of the outer surface of the lower cone chamber 6 through the ignition oil pipe 2, and the fuel liquid surface is thinned and expanded from top to bottom under the action of gravity, which is conducive to successful pulse ignition. When the temperature of the liquid fuel flame rises to the set value to accelerate the ignition temperature T2 (T2=160～170℃), the intelligent combustion controller 1 controls the fan 19 to work through the fan control line, and actively matches the wind oil through the air inlet of the air duct 20 Accelerate the combustion and quickly heat the self-heating vaporization device to the working temperature; on the other hand, the liquid fuel is opened from the vaporization channel of the fuel supply distribution valve 17 to deliver a small part of liquid alcohol-based fuel into the upper annular tube 4 of the self-heating vaporization device, using ignition The heat generated in the process is quickly preheated to vaporize the liquid alcohol-based fuel in the upper annular tube 4 and the lower conical chamber 6; when the alcohol-based fuel vapor vaporized in the self-heating vaporization device is output from the pore 7 of the lower conical chamber 6 After participating in the combustion in the inner tank 9, more heat is generated, and the temperature sensor probe 13 acquires the set operating temperature T3 (T3=250-280° C.) that the temperature in the inner tank 9 reaches.

Operation stage: The intelligent combustion controller 1 obtains the set operating temperature T3 reached by the temperature in the liner 9 through the temperature sensor probe 13 and determines that the self-heating vaporization device meets the working temperature, the fan 19 stops working, and the oil distribution valve 17 Close the ignition channel and open the vaporization channel. According to the user's firepower requirements, the intelligent combustion controller 1 frequency conversion controls the electromagnetic pump 16 to accurately obtain the required amount of alcohol-based fuel into the self-heating vaporization device, and the generated alcohol-based fuel vapor is output from the lower cone chamber 6 to form continuous vaporization Combustion heating. In order to obtain a better combustion effect, the air holes 7 of the lower conical chamber 6 are arranged obliquely upward toward the outer side of the lower conical chamber 6, that is, the air holes 7 are arranged to form an angle with the horizontal plane that rotates upward circumferentially, so that the alcohol-based fuel vapor A swirling flow from bottom to top is formed in the inner tank 9. Design and process to adjust the distance between the upper annular tube and the lower conical chamber 6 to ensure that the intersection of the center line of the air hole 7 and the upper annular tube 4 is higher than the lower end surface of the upper annular tube 4 so that the upper annular tube 4 corresponds to the combustion flame At the position of the inner flame, the temperature of the inner flame can completely ensure that the incoming liquid fuel is heated and vaporized. After the swirl of the alcohol-based fuel vapor is adjusted uniformly by the constriction 10, the upper end of the constriction 10 is further mixed with air to burn to form a high temperature. Outer flame.

The alcohol-based fuel vapor forms a swirling flow from bottom to top in the inner liner 9 so that a negative pressure is formed in the lower portion of the inner liner 9. The external air is first sucked in from the rear end of the fan 19 (the fan is not working at this time) and enters the outer liner 8 and The interlayer 11 between the inner bladder 9 enters the inner bladder 9 through the air hole 12 on the inner bladder 9 and is quickly mixed with alcohol-based fuel vapor to completely burn, meeting the user's "fast response" requirement. At the same time, the air sucked in by the negative pressure plays a cooling role in the lower part of the outer tank 8 and the inner tank 9.

According to the above working principle, through the prototype test, the rechargeable battery is selected as the power source of the intelligent combustion controller 1, the fuel supply system, the air supply system and the ignition system, and the electromagnetic pump 16, the fuel supply distribution valve 17, and the pulse generation The fan 22 and the fan 19 select the accessories with low DC power consumption and low power consumption. According to the firepower of burning alcohol-based fuel 1 to 1.5 kg/h (heat value of about 5000 kcal/kg), they can fully meet the requirements of the hot pot stove. It can run normally for 20s-30s, consume less power during the ignition phase, and ensure that the battery is used for a long enough time. Then configure a small fuel tank (the size of the fuel tank is customized according to the continuous working time that the user needs). , Hot pot and portable” requirements.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection of the present invention Within range.

Claims

A small alcohol-based fuel self-heating vaporization combustion device, characterized in that it includes an oil supply system, an air supply system, an ignition system, a burner, a self-heating vaporization device and an intelligent combustion controller (1); the self-heating vaporization The device is located inside the burner, and the ignition system is connected to the position inside the burner corresponding to the outside of the lower part of the self-heating vaporization device; the oil supply system is also connected to the burner through the ignition oil pipe (2). Corresponding to the position outside the lower part of the self-heating vaporization device, the liquid alcohol-based fuel required for ignition of the ignition system is output on the lower side wall of the self-heating vaporization device, and the self-heating vaporization device will The liquid alcohol-based fuel output from the ignition oil pipe (2) expands thinly from top to bottom to improve the ignition success rate; the air supply system is connected to the inside of the burner for inputting air into the burner; the supply The oil system is also connected to the interior of the self-heating vaporization device through a vaporized oil pipe (3) for inputting liquid alcohol-based fuel into the self-heating vaporization device after successful ignition, and the self-heating vaporization device passes through ignition or combustion process The heat generated in the vaporizes the liquid alcohol-based fuel output from the vaporized oil pipe (3) for subsequent combustion; the intelligent combustion controller (1) is outside the burner and monitors the temperature inside the burner , Which also controls the output of the fuel supply system and the air supply system and the operation of the ignition system through control line connections, and then controls the fuel supply system and the fuel supply system at different stages according to the temperature inside the burner The output of the air supply system is described to improve the ignition success rate and promote the rapid combustion of fuel.
The small alcohol-based fuel self-heating vaporization combustion device according to claim 1, characterized in that the self-heating vaporization device includes an upper annular tube (4), a transition tube (5) and a lower conical chamber (6); The upper annular tube (4) surrounds the upper peripheral position of the burner one circle; the lower conical chamber (6) is located in the burner at a position below the upper annular tube (4), and The side wall of the lower conical chamber (6) has a conical structure with a small top and a large bottom to expand and thin the liquid alcohol-based fuel output from the ignition tubing (2) from top to bottom under the effect of gravity Ignition success rate; the fuel supply system is connected to the inside of the upper annular pipe (4) through the vaporized oil pipe (3), and the upper annular pipe (4) is connected to the lower cone through the transition pipe (5) Shaped chamber (6) to transport the liquid alcohol-based fuel output from the vaporized oil pipe (3) to the interior of the lower cone chamber (6) and be vaporized by the heat generated when ignited or during combustion; in the lower cone The side wall of the shaped chamber (6) is provided with an air hole (7) for discharging the vaporized alcohol-based fuel into the burner for combustion.
The small alcohol-based fuel self-heating vaporization and combustion device according to claim 2, characterized in that the gas holes (7) are provided diagonally upward toward the outer side of the lower conical chamber (6), and the gas holes (7) The intersection point of the center line of the upper annular tube (4) is higher than the lower end surface of the upper annular tube (4) so that the upper annular tube is at the position of the internal flame of the combustion flame.
The small-sized alcohol-based fuel self-heating vaporization combustion device according to claim 2, characterized in that the burner includes an outer tank (8), an inner tank (9), and a necking (10); the inner tank (9 ) Is inside the outer bladder (8), and a space is formed between the inner bladder (9) and the outer bladder (8) to form an interlayer (11); the air supply system is connected to the interlayer (11) ), an air hole (12) connecting the interlayer (11) and the interior of the liner (9) is provided on the side wall of the liner (9); the constriction (10) is located at the After the top of the outer bladder (8) contracts inward and extends upward to the upper part of the inner bladder (9), the upper annular tube (4) surrounds the outer circumference of the constriction (10) and corresponds to the interlayer ( 11) At the top.
The small alcohol-based fuel self-heating vaporization combustion device according to claim 4, characterized in that it further comprises a temperature sensor probe (13); the temperature sensor probe (13) is located inside the inner tank (9) It is used to collect temperature information in real time. The intelligent combustion controller (1) is connected to the temperature sensor probe (13) through a temperature sensing line (14) to obtain and monitor the temperature inside the inner tank (9) in real time.
The small alcohol-based fuel self-heating vaporization and combustion device according to claim 5, characterized in that the fuel supply system includes an oil tank (15), an electromagnetic pump (16), and an oil supply distribution valve (17); the fuel tank ( 15) Located on the outside of the outer tank (8), its outlet is connected to the electromagnetic pump (16) and the oil supply distribution valve (17) in sequence; the first outlet of the oil supply distribution valve (17) passes through The ignition oil pipe (2) is connected to the interior of the inner tank (9) at a position corresponding to the upper outer side of the lower conical chamber (6), and the second outlet is connected to the upper ring through the vaporization oil pipe (3) The inside of the tube (4); the intelligent combustion controller (1) is connected to control the operation of the electromagnetic pump (16) through an electromagnetic pump control line (18), the intelligent combustion controller (1) according to the The temperature inside the liner (9) is also connected to the switches that control the two outlets of the oil supply distribution valve (17) through the sub-valve output control line (24), so that the electromagnetic pump (16) passes through the oil supply first A distribution valve (17) and output the liquid alcohol-based fuel required for ignition on the side wall of the lower conical chamber (6) through the ignition oil pipe (2), and then pass the oil supply distribution valve (17) And the liquid alcohol-based fuel to be vaporized is output into the upper annular tube (4) through the vaporized oil tube (3).
The small alcohol-based fuel self-heating vaporization combustion device according to claim 5, characterized in that the air supply system includes a fan (19) and an air duct (20); the fan (19) is located in the outer tank ( 8) The outer side, which is connected to the interlayer (11) through the air duct (20); the intelligent combustion controller (1) passes the fan control line (21) according to the temperature inside the inner tank (9) The connection controls the operation of the fan (19), so as to realize the delivery of a corresponding amount of air to the interior of the liner (9) during ignition to improve the ignition success rate and promote the rapid combustion of fuel.
The small alcohol-based fuel self-heating vaporization combustion device according to claim 5, characterized in that the ignition system includes a pulse generator (22) and an ignition needle (23); the pulse generator (22) is located at the Outside the outer bladder (8), the ignition needle (23) is located inside the inner bladder (9) at a position corresponding to the outer side of the lower conical chamber (6), and the ignition needle (23) is located at the Above the ignition oil pipe (2); the side wall of the lower conical chamber (6) is provided with a liquid alcohol-based fuel output from the ignition oil pipe (2) to flow downward to the position of the ignition needle (23) Capillary shallow groove (26); the output end of the pulse generator (22) is connected to the ignition needle (23) and expands on the side wall of the lower conical chamber (6) through the ignition needle (23) The thinned liquid alcohol-based fuel performs pulse discharge preheating to achieve ignition; the intelligent combustion controller (1) is connected to control the operation of the pulse generator (22) through an ignition control line (24).
The small self-heating vaporization combustion device for alcohol-based fuel according to claim 8, characterized in that the intelligent combustion controller (1) is set by the temperature sensing probe (13) according to the characteristics of the alcohol-based fuel The safe ignition temperature T1, the accelerated ignition temperature T2 and the operating temperature T3 in the inner tank (9), and the T1=65-75°C, T2=160-170°C, T3=250-280°C.
The small alcohol-based fuel self-heating vaporization combustion device according to any one of claims 1 to 9, wherein the ignition oil pipe (2) and the vaporization oil pipe (3) are stainless steel capillaries with an inner diameter ≦ 1.5 mm .