CN111795399A - Automatic proportioning combustion system for alcohol-based fuel - Google Patents

Abstract

The invention discloses an alcohol-based fuel automatic proportioning combustion system, which comprises: a combustion device for combusting an alcohol-based fuel and providing heat; and an oil supply device for supplying an alcohol-based fuel to the combustion device, wherein the oil supply device includes: an outlet of the oil supply pipe is connected with the combustion device; and a fuel delivery device comprising: at least two storage tanks, wherein one storage tank is used for storing methanol, and the other storage tanks are used for storing additives; the oil supply pumps are arranged in one-to-one correspondence with the storage tanks, and the inlet of each oil supply pump is communicated with the corresponding storage tank; and the first valves are arranged in one-to-one correspondence with the oil supply pumps, the inlet of each first valve is connected with the outlet of the corresponding oil supply pump, and the outlet of each first valve is connected with the inlet of the oil supply pipe. The alcohol-based fuel adopting the combustion system can be prepared at present, and the phenomena of layering, uneven mixing and the like are avoided, so that the alcohol-based fuel can be normally and fully combusted.

Description

Automatic proportioning combustion system for alcohol-based fuel

Technical Field

The invention relates to the field of burners, in particular to an automatic proportioning combustion system for alcohol-based fuel.

Background

The alcohol-based fuel is a fuel mainly prepared from alcohols (such as methanol, ethanol, butanol and the like), the alcohol-based fuel is completely combusted, the heat conversion efficiency is highest, and the emissions are mainly water and carbon dioxide, so that the alcohol-based fuel is the cleanest, most environment-friendly and most potential fuel in the future. The alcohol-based fuel is easy to produce, can be stored, transported and used under normal temperature and normal pressure, does not need a high-pressure steel cylinder for storage, can be stored only by using a common metal or plastic container, is not easy to be poisoned and exploded like coal gas, and has high safety. In the face of exhaustion of petrochemical energy, alcohol-based fuels are the most potential new alternative energy sources. The alcohol-based fuel is applied to the production industries needing heat supply, such as industrial boilers, agricultural drying furnaces and the like through the alcohol-based fuel combustor, and is an important direction for applying the alcohol-based fuel at present. Because alcohol group fuel is liquid under the normal temperature, current alcohol group fuel combustor improves the utilization efficiency for making alcohol group fuel can fully burn, needs to vaporize alcohol group fuel.

The alcohol-based fuel is prepared by mixing methanol and a combustion-supporting additive according to a certain proportion, and the existing alcohol-based fuel is prepared by manufacturers and stored in a storage tank so as to be convenient for subsequent transportation and use. There is a certain time difference between the preparation and the use, namely, the alcohol-based fuel is kept still for a certain period of time. In the process of storing the alcohol-based fuel, the additive and other components can generate the phenomena of layering, uneven mixing and the like due to the problem of stable aging, the abnormal combustion of the alcohol-based fuel can be caused, the heat supply efficiency is influenced, and the environment can be polluted.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Disclosure of Invention

The invention aims to provide an automatic proportioning combustion system for alcohol-based fuel, so as to overcome the defects that the existing prepared alcohol-based fuel is easy to generate layering and uneven mixing due to the poor time from preparation to use and the stable timeliness of the fuel.

In order to achieve the above object, the present invention provides an alcohol-based fuel auto-proportioning combustion system, comprising: a combustion device for combusting an alcohol-based fuel and providing heat; and an oil supply device for supplying the alcohol-based fuel to the combustion device, wherein the oil supply device includes: an outlet of the oil supply pipe is connected with the combustion device; and a fuel delivery device comprising: at least two storage tanks, wherein one storage tank is used for storing methanol, and the other storage tanks are used for storing additives; the oil supply pumps are arranged in one-to-one correspondence with the storage tanks, and the inlet of each oil supply pump is communicated with the corresponding storage tank; and at least two first valves, the first valves and the oil supply pump are arranged in a one-to-one correspondence manner, the inlet of each first valve is connected with the corresponding outlet of the oil supply pump, and the outlet of each first valve is connected with the inlet of the oil supply pipe.

Preferably, in the above technical solution, the fuel conveying device further includes at least two first throttle valves, the first throttle valves are arranged in one-to-one correspondence with the fuel supply pumps, an inlet of each first throttle valve is connected to an outlet of the corresponding fuel supply pump through a conveying pipe, and an outlet of each first throttle valve is connected to an inlet of the corresponding first valve; wherein, each conveying pipe is provided with a pressure sensor.

Preferably, in the above technical solution, the combustion apparatus includes: the furnace body is provided with a combustion chamber with an opening at the left end, and a vaporization cavity is arranged in the combustion chamber; at least one nozzle, wherein each nozzle is arranged at the right end of the combustion chamber and is communicated with the vaporization cavity; the outlet of the main oil inlet pipe is communicated with the vaporization cavity, the inlet of the main oil inlet pipe is connected with the outlet of the oil supply pipe, and the inlet of the main oil inlet pipe is provided with a second valve; the main air inlet pipes are arranged at intervals along the circumferential direction of the furnace body, the outlet of each main air inlet pipe is communicated with the right end of the combustion chamber, and the inlet of each main air inlet pipe is connected with an air supply device; the bottom of the right end of the combustion chamber inclines downwards from left to right, and the ignition device is arranged at the bottom of the right end of the combustion chamber and corresponds to the vaporization cavity; the outlet of the secondary oil inlet pipe is communicated with the combustion chamber, the outlet of the secondary oil inlet pipe is arranged corresponding to the ignition device, the inlet of the secondary oil inlet pipe is connected with the outlet of the oil supply pipe, and the inlet of the secondary oil inlet pipe is provided with a second throttle valve and a third valve; and the air inlet chamber is positioned at the right lower part of the furnace body and is correspondingly arranged with the secondary oil inlet pipe, an air inlet of the air inlet chamber is connected with the air supply device through the secondary air inlet pipe, and the air inlet chamber is provided with at least one air outlet hole communicated with the combustion chamber.

Preferably, in the above technical solution, the combustion apparatus further includes a buffer chamber, the buffer chamber is disposed at the right end of the combustion chamber, the right end of the vaporization chamber is communicated with the left end of the combustion chamber, each nozzle is communicated with the buffer chamber and is located at the left end of the buffer chamber, wherein the ignition device is located below the buffer chamber.

Preferably, in the above technical scheme, the top of the air inlet chamber is communicated with the bottom of the right end of the combustion chamber, the side wall of the air inlet chamber is a hollow wall body with an inner cavity, the inner cavity of the side wall of the air inlet chamber is an air inlet cavity, an air inlet of the air inlet cavity is connected with the air supply device through the secondary air inlet pipe, and the wall surface of the air inlet cavity is provided with at least one air outlet hole communicated with the combustion chamber; wherein, ignition is located the bottom of air inlet chamber.

Preferably, among the above-mentioned technical scheme, the transversal personally submitting ring form in air inlet chamber, just the axis tilt up from right to left of air inlet chamber, be equipped with a plurality of on the roof of air inlet chamber the exhaust vent, just also be equipped with a plurality of on the inside wall in air inlet chamber the exhaust vent.

Preferably, in the above technical scheme, the air outlet holes formed in the top wall of the air inlet cavity are first air outlet holes, all the first air outlet holes are uniformly distributed along the same circumference, and the axis of each first air outlet hole inclines downwards from inside to outside; set up in the inside wall of air inlet chamber the exhaust vent includes a plurality of second exhaust vent and a plurality of third exhaust vent, all the third exhaust vent is located the bottom of air inlet chamber just distributes along same circumferencial direction, all the second exhaust vent is located the top of third exhaust vent just distributes along same circumferencial direction, and every the axis of second exhaust vent is from interior to outer downward sloping.

Preferably, in the above technical solution, an outlet of the main oil inlet pipe passes through one of the main air inlet pipes and then is communicated with the vaporization chamber.

Preferably, in the above technical scheme, the combustion apparatus further includes a high-pressure air delivery pipe, an inlet of the high-pressure air delivery pipe is connected with the high-pressure air apparatus, an outlet of the high-pressure air delivery pipe is connected with an inlet of the main oil inlet pipe, and an outlet of the high-pressure air delivery pipe is provided with a fourth valve.

Preferably, in the above technical scheme, the vaporization chamber is located in the middle of the combustion chamber, and the left side wall of the vaporization chamber is connected with the left end of the furnace body through a connecting rod.

Compared with the prior art, the invention has the following beneficial effects:

1. the combustion system comprises a combustion device and an oil supply device, wherein the oil supply device comprises at least two storage tanks which are respectively used for storing methanol and additives so as to convey the methanol and the additives into an oil supply pipe to be mixed to prepare the alcohol-based fuel, and the alcohol-based fuel is conveyed to the combustion device in time, so that the aim of preparation before use is fulfilled, and the phenomena of layering, uneven mixing and the like are avoided, so that the alcohol-based fuel can be normally and fully combusted.

2. According to the invention, a first throttle valve is arranged between each oil supply pump and the corresponding first valve, and the delivery pipe connected with each first throttle valve and the corresponding oil supply pump is provided with a pressure sensor, so that the pressure in the delivery pipe is controlled to be stabilized in a certain range through the pressure sensor, the flow is regulated through the first throttle valve, and when the flow and the pressure are fixed, the output quantities of methanol and an additive can be proportionally controlled by controlling the opening time of the first valve, so that the methanol and the additive can be mixed in the oil supply pipe according to a certain proportion to prepare the alcohol-based fuel.

3. According to the invention, the secondary oil inlet pipe directly conveys the alcohol-based fuel to the combustion chamber for combustion, so that the combustion engine can be used for heating immediately, the vaporization chamber is heated simultaneously, the temperature in the vaporization chamber is gradually increased, when the temperature in the vaporization chamber reaches the temperature for vaporizing the alcohol-based fuel, the main oil inlet pipe conveys the alcohol-based fuel to the vaporization chamber, so that the alcohol-based fuel can be further and fully mixed and vaporized in the vaporization chamber, and the vaporized alcohol-based fuel is conveyed to the combustion chamber from the nozzle for combustion, so that the purpose of instant use can be achieved; set up the vaporization chamber in the combustion chamber, heat transfer efficiency is high, shortens the vaporization time of alcohol group fuel, reduces the radiating rate, and the in-process heating vaporization chamber that gives the external equipment heat supply through the heat that utilizes the combustion chamber to produce comes to vaporize alcohol group fuel, need not set up heating device in addition to can make alcohol group fuel obtain abundant vaporization and burning, in order to improve heat production efficiency, and effectively reduce and make and use cost.

4. The top of the air inlet chamber is communicated with the bottom of the combustion chamber, the cross section of the air inlet chamber is in a circular ring shape, the axis of the air inlet chamber inclines upwards from right to left, the top wall of the air inlet chamber is provided with a plurality of air outlet holes, the inner side wall of the air inlet chamber is also provided with a plurality of air outlet holes, the ignition device and the discharge hole of the secondary oil inlet pipe are both arranged at the bottom of the air inlet chamber, so that alcohol-based fuel atomized and input from the small hole of the outlet of the secondary oil inlet pipe can be fully combusted, the generated flame is sprayed to the vaporization chamber and the buffer chamber in the combustion chamber, the heating efficiency of the vaporization chamber is improved, the alcohol-based fuel can be further ensured to be fully and quickly vaporized, and the burner can be used for heating at once, so as to achieve the; the left end opening of the combustion chamber, the air inlet chamber are located at the bottom of the right end of the combustion chamber, the axis of the air inlet chamber inclines upwards from right to left, the outlet of the secondary oil inlet pipe is arranged at the bottom of the air inlet chamber and corresponds to the vaporization chamber and the buffer chamber, and the alcohol-based fuel atomized and input through the secondary oil inlet pipe is prevented from being sprayed out from the left end opening of the combustion chamber, so that the alcohol-based fuel atomized and input through the secondary oil inlet pipe can be fully combusted in the air inlet chamber and the combustion chamber.

5. The combustion device comprises a high-pressure air delivery pipe, when the main oil inlet pipe, the vaporization chamber and the residual fuel in the buffer chamber and the residual substances generated by the combustion of the fuel need to be cleaned, each first valve and each third valve are closed, the fourth valve and the second valve are opened, high-pressure gas is introduced into the vaporization chamber, and the residual substances in the main oil inlet pipe, the vaporization chamber and the buffer chamber are cleaned, so that the aim of cleaning the furnace chamber is fulfilled, and the service life of the combustion machine is prolonged.

Drawings

Fig. 1 is a schematic structural view of the main body of the alcohol-based fuel auto-proportioning combustion system according to the invention.

Fig. 2 is an enlarged schematic view of the X portion of fig. 1 according to the present invention.

Description of the main reference numerals:

1-furnace body, 2-connecting rod, 3-vaporization cavity, 4-combustion chamber, 5-main air inlet pipe, 6-main oil inlet pipe, 7-second valve, 8-fourth valve, 9-high-pressure air delivery pipe, 10-third valve, 11-oil supply pipe, 12-second throttle valve, 13-first valve, 14-first throttle valve, 15-pressure sensor, 16-oil supply pump, 17-storage tank, 18-secondary oil inlet pipe, 19-secondary air inlet pipe, 20-buffer chamber, 21-nozzle, 22-ignition device, 23-air inlet cavity, 24-air inlet chamber, 25-first air outlet, 26-second air outlet and 27-third air outlet.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

Fig. 1 and 2 are schematic structural views showing an alcohol-based fuel auto-proportioning combustion system according to a preferred embodiment of the present invention, and the combustion engine includes a combustion device and an oil supply device. Referring to fig. 1, a combustion apparatus is used to combust an alcohol-based fuel and provide heat; the oil supply device is used for providing alcohol-based fuel for the combustion device, wherein the oil supply device comprises an oil supply pipe 11 and a fuel conveying device, and an outlet of the oil supply pipe 11 is connected with the combustion device so as to convey the alcohol-based fuel for the combustion device. The fuel delivery device comprises at least two storage tanks 17, at least two feed pumps 16 and at least two first valves 13. Of the two storage tanks 17, one storage tank 17 is used to store methanol, the remaining storage tanks 17 are used to store additives, the number of storage tanks 17 storing additives is determined according to the kind of additives required to formulate the alcohol-based fuel, and one storage tank 17 is used to store one additive. The oil supply pumps 16 are arranged in one-to-one correspondence with the storage tanks 17, and the inlet of each oil supply pump 16 is communicated with the corresponding storage tank 17 so as to pump the liquid in the corresponding storage tank 17 into the oil supply pipe 11, so that the liquid is mixed in the oil supply pipe 11 to form the alcohol-based fuel; the first valves 13 are arranged in one-to-one correspondence with the fuel feed pumps 16, an inlet of each first valve 13 is connected to an outlet of the corresponding fuel feed pump 16, and an outlet of each first valve 13 is connected to an inlet of the fuel feed pipe 11. The combustion system comprises a combustion device and an oil supply device, wherein the oil supply device comprises at least two storage tanks 17 which are respectively used for storing methanol and additives so as to convey the methanol and the additives into an oil supply pipe 11 to be mixed to prepare the alcohol-based fuel, and convey the alcohol-based fuel to the combustion device in time, so that the aim of preparation before use is fulfilled, and the phenomena of layering, uneven mixing and the like are avoided, so that the alcohol-based fuel can be normally and fully combusted.

Referring to fig. 1, preferably, the fuel delivery apparatus further includes at least two first throttles 14 for adjusting the magnitude of the flow, the first throttles 14 are provided in one-to-one correspondence with the feed pumps 16, an inlet of each first throttle 14 is connected to an outlet of the corresponding feed pump 16 through a delivery pipe, and an outlet of each first throttle 14 is connected to an inlet of the corresponding first valve 13; wherein, all be equipped with pressure sensor 15 on every conveyer pipe for detect the pressure of the interior liquid of conveyer pipe, thereby control the pressure in the conveyer pipe and stabilize in certain scope, and adjust the flow size through first choke valve 14, when flow and pressure are certain, can be through controlling the output quantity of first valve 13 open time come the proportional control methanol and additive, so that methanol and additive can mix in oil supply pipe 11 according to certain proportion and prepare the alcohol group fuel.

Referring to fig. 1 and 2, preferably, the combustion apparatus includes a furnace body 1, at least one nozzle 21, a main oil inlet pipe 6, a plurality of main air inlet pipes 5, an ignition device 22, a secondary oil inlet pipe 18, and an air inlet chamber 24. Furnace body 1 is equipped with a left end open-ended combustion chamber 4, be equipped with vaporization chamber 3 in the combustion chamber 4, set up vaporization chamber 3 in combustion chamber 4, can improve heat transfer efficiency, shorten the vaporization time of alcohol group fuel, reduce the radiating rate of vaporization chamber 3, in-process heating vaporization chamber 3 for the external equipment heat supply through the heat that utilizes combustion chamber 4 to produce, thereby vaporize alcohol group fuel, need not set up heating device in addition, can make alcohol group fuel obtain abundant vaporization and burning, improve heat production efficiency, and effectively reduce manufacturing and use cost. At least one nozzle 21 is arranged at the right end of the combustion chamber 4, each nozzle 21 is arranged at the right end of the combustion chamber 4, and each nozzle 21 is communicated with the vaporization chamber 3, so that the alcohol-based fuel vaporized in the vaporization chamber 3 is sprayed out through the nozzle 21 and is combusted in the combustion chamber 4. The outlet of the main oil inlet pipe 6 is communicated with the vaporization cavity 3, the inlet of the main oil inlet pipe 6 is connected with the outlet of the oil supply pipe 11, so that the alcohol-based fuel in the oil supply pipe 11 can be further fully mixed and vaporized in the vaporization cavity 3, the vaporized alcohol-based fuel is sprayed into the combustion chamber 4 by the nozzle 21 to be combusted, and the inlet of the main oil inlet pipe 6 is provided with the second valve 7 so as to control the opening and closing of the main oil inlet pipe 6. All main air inlet pipes 5 are arranged at intervals along the circumferential direction of the furnace body 1, the outlet of each main air inlet pipe 5 is communicated with the right end of the combustion chamber 4, the inlet of each main air inlet pipe 5 is connected with an air supply device so as to convey air into the combustion chamber 4 for combustion supporting, and heat in the combustion chamber 4 can be sprayed out to the left end opening of the combustion chamber 4. Wherein, the air supply device can be a blower. The bottom of the right end of the combustion chamber 4 inclines downwards from left to right, and the ignition device 22 is arranged at the bottom of the right end of the combustion chamber 4 and corresponds to the vaporization chamber 3 for ignition. The ignition device 22 may be a conventional electronic igniter, among others. The export of inferior oil pipe 18 and combustion chamber 4 intercommunication, and the export of inferior oil pipe 18 corresponds the setting with ignition 22, the import of inferior oil pipe 18 and the exit linkage of confession oil pipe 11, and the import of inferior oil pipe 18 is equipped with second choke valve 12 and third valve 10, the opening and closing of inferior oil pipe 18 can be controlled to third valve 10, the size of liquid flow in inferior oil pipe 18 can be adjusted to second choke valve 12, alcohol-based fuel in the confession oil pipe 11 is input the bottom of combustion chamber 4 right-hand member through the aperture atomizing of the export of inferior oil pipe 18, ignite by ignition 22, alright ignite the alcohol-based fuel of aperture atomizing input from the export of inferior oil pipe 18 directly, in order to burn the heat supply. The air inlet chamber 24 is located the right side below the furnace body 1 and corresponds the setting with inferior oil inlet pipe 18, and the air intake of air inlet chamber 24 is connected with air supply arrangement through inferior air inlet pipe 19, and air inlet chamber 24 is equipped with at least one exhaust vent with combustion chamber 4 intercommunication to the alcohol group fuel that the inferior oil inlet pipe 18 was carried out combustion-supportingly, thereby will spout the heat of the alcohol group fuel burning that the inferior oil inlet pipe 18 came out to vaporization chamber 3, heat vaporization chamber 3. According to the invention, the alcohol-based fuel is atomized and input into the combustion chamber 4 through the small hole at the outlet of the secondary oil inlet pipe 18 to be combusted, so that the combustion engine can be used for supplying heat immediately, the vaporization chamber 3 is heated at the same time, the temperature in the vaporization chamber 3 is gradually increased, when the temperature in the vaporization chamber 3 reaches the temperature for vaporizing the alcohol-based fuel, the alcohol-based fuel in the oil supply pipe 11 is conveyed into the vaporization chamber 3 through the main oil inlet pipe 6, so that the alcohol-based fuel can be further and fully mixed and vaporized in the vaporization chamber 3, and the vaporized alcohol-based fuel is conveyed into the combustion chamber 4 from the nozzle 21 to be combusted, so that the purpose of being ready to use can be achieved.

With continued reference to fig. 1, the vaporization chamber 3 is preferably located in the middle of the combustion chamber 4 to further improve heat transfer efficiency and reduce the heat dissipation rate of the vaporization chamber 3; and the left side wall of the vaporization chamber 3 is connected with the left end of the furnace body 1 through the connecting rod 2 so as to fix and support the vaporization chamber 3 and avoid the vaporization chamber 3 from sagging after being heated and deformed. The cross section of the vaporization cavity 3 along the vertical direction is circular, that is, the axis of the vaporization cavity 3 is distributed along the left and right direction, so that the flame in the combustion chamber 4 can be ejected leftwards along the gap between the vaporization cavity 3 and the furnace body 1, and the heat supply is facilitated.

Referring to fig. 1, the combustion apparatus further includes a buffer chamber 20, the buffer chamber 20 is disposed at a right end of the combustion chamber 4, and an ignition device 22 is located below the buffer chamber 20 to enable heat in the combustion chamber 4 to be transferred into the buffer chamber 20 to heat the buffer chamber 20, a right end of the vaporization chamber 3 is communicated with a left end of the combustion chamber 4 to enable alcohol-based fuel vaporized in the vaporization chamber 3 to enter the buffer chamber 20, so as to ensure combustion efficiency, each nozzle 21 is communicated with the buffer chamber 20 and located at the left end of the buffer chamber 20, so that axes of the nozzles 21 are horizontally distributed and correspond to a left end opening of the combustion chamber 4 to spray heat in the combustion chamber 4 to the left end opening thereof. Further preferably, a temperature sensor is arranged in the buffer chamber 20, because the buffer chamber 20 is positioned at the right end of the combustion chamber 4, the temperature of the buffer chamber 20 is slightly lower than that of the vaporization chamber 3, when the temperature sensor detects that the temperature in the buffer chamber 20 reaches the temperature of vaporization of the alcohol-based fuel, the temperature in the vaporization chamber 3 also surely reaches the temperature of vaporization of the alcohol-based fuel, so that whether the temperatures in the buffer chamber 20 and the vaporization chamber 3 reach the temperature of vaporization of the alcohol-based fuel can be accurately judged through the temperature sensor, and the alcohol-based fuel vaporized in the vaporization chamber 3 is prevented from being cooled and liquefied when passing through the buffer chamber 20 due to the fact that the temperature in the buffer chamber 20 does not reach the requirement. In addition, it is preferable that all the nozzles 21 are uniformly distributed along the same circumference, and the circumference on which all the nozzles 21 are located is coaxially distributed with the axis of the vaporization chamber 3, in order to improve the uniformity of the flame.

Referring to fig. 1 and 2, preferably, the top of the air inlet chamber 24 is communicated with the bottom of the right end of the combustion chamber 4, the side wall of the air inlet chamber 24 is a hollow wall body with an inner cavity, the inner cavity of the side wall of the air inlet chamber 24 is an air inlet cavity 23, an air inlet of the air inlet cavity 23 is connected with an air supply device through a secondary air inlet pipe 19, and the wall surface of the air inlet cavity 23 is provided with at least one air outlet hole communicated with the combustion chamber 4; wherein, the ignition device 22 and the outlet of the secondary oil inlet pipe 18 are positioned at the bottom of the air inlet chamber 24. Further preferably, the cross section of the air inlet cavity 23 is circular, the axial line of the air inlet chamber 24 inclines upwards from right to left, so that the heat generated by combustion of the alcohol-based fuel atomized and input from the small hole of the outlet of the secondary oil inlet pipe 18 is blown to the buffer chamber 20 and the vaporization cavity 3, the buffer chamber 20 and the vaporization cavity 3 are sufficiently heated, the top wall of the air inlet cavity 23 is provided with a plurality of air outlet holes, and the inner side wall of the air inlet cavity 23 is also provided with a plurality of air outlet holes; wherein, the left end opening of combustion chamber 4, air inlet chamber 24 are located the bottom of the right-hand member of combustion chamber 4, and the axis of air inlet chamber 24 inclines upwards from right to left, the export of inferior oil inlet pipe 18 sets up in the bottom of air inlet chamber 24 and with vaporization chamber 3 and buffer chamber 20, avoid the alcohol group fuel of input by the atomization of inferior oil inlet pipe 18 from the left end opening blowout of combustion chamber 4 to make the alcohol group fuel of input by the atomization of inferior oil inlet pipe 18 can fully burn in air inlet chamber 24 and combustion chamber 4. Thirdly, further preferably, the air outlet holes formed in the top wall of the air inlet cavity 23 are first air outlet holes 25, all the first air outlet holes 25 are uniformly distributed along the same circumference, the circumference where all the first air outlet holes 25 are located and the axis of the air inlet cavity 23 are coaxially distributed, and the axis of each first air outlet hole 25 is inclined downwards from inside to outside; the air outlet holes arranged on the inner side wall of the air inlet cavity 23 comprise a plurality of second air outlet holes 26 and a plurality of third air outlet holes 27, all the third air outlet holes 27 are located at the bottom of the air inlet cavity 23 and distributed along the same circumferential direction, the third air outlet holes 27 correspond to the secondary oil inlet pipe 18, all the second air outlet holes 26 are located above the third air outlet holes 27 and distributed along the same circumferential direction, and the axis of each second air outlet hole 26 inclines downwards from inside to outside. According to the invention, the ignition device 22 and one end of the secondary oil inlet pipe 18 communicated with the combustion chamber 4 are arranged at the bottom of the air inlet chamber 24, the third air outlet hole 27 corresponds to the secondary oil inlet pipe 18, so that the alcohol-based fuel atomized and input from the small hole at the outlet of the secondary oil inlet pipe 18 can be fully vaporized and combusted, the first air outlet hole 25 and the second air outlet hole 26 are obliquely arranged, flame generated by combustion of the alcohol-based fuel atomized and input from the small hole at the outlet of the secondary oil inlet pipe 18 can be sprayed to the bottom of the buffer chamber 20 and the right end of the vaporization chamber 3, the heating efficiency of the vaporization chamber 3 and the buffer chamber 20 is improved, the alcohol-based fuel can be further ensured to be fully and rapidly vaporized, and the burner can be used for heat supply immediately. Wherein, the air supply device can be a blower, and the air inlet chamber 24 and the main air inlet pipe 5 can share one blower or can be separated to use different blowers.

Referring to fig. 1, it is preferable that the outlet of the main oil feed pipe 6 is communicated with the vaporization chamber 3 after passing through one of the main air inlet pipes 5, so as to prevent the alcohol-based fuel in the main oil feed pipe 6 from being vaporized before entering the vaporization chamber 3.

Referring to fig. 1, preferably, the combustion apparatus further comprises a high-pressure air delivery pipe 9, an inlet of the high-pressure air delivery pipe 9 is connected with the high-pressure air apparatus, an outlet of the high-pressure air delivery pipe 9 is connected with an inlet of the main oil inlet pipe 6, and the outlet of the high-pressure air is provided with a fourth valve 8; when the alcohol-based fuel needs to be conveyed into the vaporization chamber 3, the fourth valve 8 is closed; when the residual fuel in the main oil inlet pipe 6, the vaporization chamber 3 and the buffer chamber 20 and the residual substances generated by the combustion of the fuel need to be cleaned, each of the first valve 13 and the third valve 10 is closed, the fourth valve 8 and the second valve 7 are opened, high-pressure gas is introduced into the vaporization chamber 3, and the residual substances in the main oil inlet pipe 6, the vaporization chamber 3 and the buffer chamber 20 are cleaned, so that the purpose of cleaning the furnace chamber is achieved, and the service life of the burner is prolonged.

With continued reference to fig. 1, preferably, the outlet of the main oil inlet pipe 6 extends to the left end of the vaporization chamber 3, so as to ensure that the alcohol-based fuel has enough time to vaporize, so that the alcohol-based fuel delivered from the main oil inlet pipe 6 is delivered into the buffer chamber 20 from the vaporization chamber 3 after being sufficiently vaporized, and the liquid alcohol-based fuel is prevented from entering the buffer chamber 20.

The control mode of the combustion system can be manual control, and can also be set as an automatic control mode, preferably, the combustion system further comprises a controller, all the first valves 13, the second valves 7, the third valves 10 and the fourth valves 8 are electromagnetic valves, the ignition device 22, the air supply device, the temperature sensor, all the valves, the throttle valves, the pressure sensor 15 and the oil supply pump 16 are all connected with the controller, the controller controls to open all the first valves 13 and the oil supply pump 16, and adjusts the opening degree of the corresponding first throttle valve 14 according to pressure information transmitted by the pressure sensor 15, so that methanol and additives can be mixed in the oil supply pipe 11 according to a certain proportion to prepare alcohol-based fuel; meanwhile, the third valve 10 and the ignition device 22 are controlled to be opened, the liquid alcohol-based fuel in the oil supply pipe 11 is atomized and input into the combustion chamber 4 through the secondary oil inlet pipe 18, and is ignited by the ignition device 22 and then combusted, so that the combustion engine can be immediately used for supplying heat, an oxygen-enriched environment is kept in the combustion chamber 4 under the action of strong air input by the air inlet chamber 24 during combustion, the atomized alcohol-based fuel is sufficiently combusted through oxygen, the heat after combustion is sprayed towards the upper left direction to heat the vaporization chamber 3 and the buffer chamber 20, the temperature in the vaporization chamber 3 and the temperature in the buffer chamber 20 are gradually increased, when the controller detects that the temperature information transmitted by the temperature sensor reaches the temperature for vaporizing the alcohol-based fuel, the second valve 7 is controlled to be opened, the liquid alcohol-based fuel in the oil supply pipe 11 is transmitted to the vaporization chamber 3 through the main oil inlet pipe 6, so that methanol and an additive are further mixed and vaporized, the vaporized alcohol-based fuel is conveyed into the combustion chamber 4 from the nozzle 21 to be combusted, the combustion chamber 4 keeps an oxygen-enriched environment in the combustion chamber 4 under the action of strong wind input by the main air inlet pipe 5, so that the alcohol-based fuel is fully combusted, and heat is sprayed out from the left end opening of the combustion chamber 4 to supply heat. Wherein, can burn the alcohol group fuel after the vaporization in the combustion chamber 4, continuously keep heating vaporization chamber 3 simultaneously, make from the main alcohol group fuel that advances oil pipe 6 and continuously input in the combustion chamber 4 again after fully vaporizing, after can utilizing the alcohol group fuel that advances oil pipe 6 and normally supplying heat, can close or turn down the fuel feeding volume of secondary oil supply pipe 11 as required. When the burner needs to be closed, the controller controls to close all the oil supply pumps 16, the valves and the throttle valves so that the main oil inlet pipe 6 and the secondary oil inlet pipe 18 stop conveying the alcohol-based fuel into the combustion chamber 4, the air supply device keeps supplying air continuously, and the temperature in the furnace is reduced, so that the effect that the burner can be closed and stopped immediately can be achieved. When the residual substances in the main oil inlet pipe 6, the vaporization chamber 3 and the buffer chamber 20 need to be cleaned, the controller controls to open the second valve 7 and the fourth valve 8, close the third valve 10 and all the first valves 13, open the high-pressure air device, introduce high-pressure gas into the vaporization chamber 3, and clean the residual substances in the main oil inlet pipe 6, the vaporization chamber 3 and the buffer chamber 20, so as to achieve the purpose of cleaning the furnace chamber and prolong the service life of the burner.

The combustion system can be used for preparing and using the alcohol-based fuel on site so as to achieve the purpose of preparation and use at present, and avoid the phenomena of layering, uneven mixing and the like of components such as methanol, additives and the like so that the alcohol-based fuel can be normally and fully combusted.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims (10)

1. An alcohol-based fuel auto-proportioning combustion system, comprising:

a combustion device for combusting an alcohol-based fuel and providing heat; and

an oil supply device for supplying the alcohol-based fuel to the combustion device, wherein the oil supply device includes:

an outlet of the oil supply pipe is connected with the combustion device; and

a fuel delivery apparatus, comprising:

at least two storage tanks, wherein one storage tank is used for storing methanol, and the other storage tanks are used for storing additives;

the oil supply pumps are arranged in one-to-one correspondence with the storage tanks, and the inlet of each oil supply pump is communicated with the corresponding storage tank; and

the first valves are arranged in one-to-one correspondence with the oil supply pumps, the inlet of each first valve is connected with the corresponding outlet of the oil supply pump, and the outlet of each first valve is connected with the inlet of the oil supply pipe.

2. The alcohol-based fuel auto-proportioning combustion system of claim 1, wherein the fuel delivery device further comprises at least two first throttle valves, the first throttle valves are arranged in one-to-one correspondence with the fuel supply pumps, an inlet of each first throttle valve is connected with an outlet of the corresponding fuel supply pump through a delivery pipe, and an outlet of each first throttle valve is connected with an inlet of the corresponding first valve; wherein, each conveying pipe is provided with a pressure sensor.

3. The alcohol-based fuel auto-proportioning combustion system of claim 1, wherein the combustion apparatus comprises:

the furnace body is provided with a combustion chamber with an opening at the left end, and a vaporization cavity is arranged in the combustion chamber;

at least one nozzle, wherein each nozzle is arranged at the right end of the combustion chamber and is communicated with the vaporization cavity;

the outlet of the main oil inlet pipe is communicated with the vaporization cavity, the inlet of the main oil inlet pipe is connected with the outlet of the oil supply pipe, and the inlet of the main oil inlet pipe is provided with a second valve;

the main air inlet pipes are arranged at intervals along the circumferential direction of the furnace body, the outlet of each main air inlet pipe is communicated with the right end of the combustion chamber, and the inlet of each main air inlet pipe is connected with an air supply device;

the bottom of the right end of the combustion chamber inclines downwards from left to right, and the ignition device is arranged at the bottom of the right end of the combustion chamber and corresponds to the vaporization cavity;

the outlet of the secondary oil inlet pipe is communicated with the combustion chamber, the outlet of the secondary oil inlet pipe is arranged corresponding to the ignition device, the inlet of the secondary oil inlet pipe is connected with the outlet of the oil supply pipe, and the inlet of the secondary oil inlet pipe is provided with a second throttle valve and a third valve; and

the air inlet chamber is positioned below the right side of the furnace body and is correspondingly arranged with the secondary oil inlet pipe, an air inlet of the air inlet chamber is connected with the air supply device through the secondary air inlet pipe, and the air inlet chamber is provided with at least one air outlet hole communicated with the combustion chamber.

4. The alcohol-based fuel auto-proportioning combustion system of claim 3, wherein the combustion device further comprises a buffer chamber disposed at a right end of the combustion chamber, a right end of the vaporization chamber is communicated with a left end of the combustion chamber, each of the nozzles is communicated with the buffer chamber and is located at the left end of the buffer chamber, and wherein the ignition device is located below the buffer chamber.

5. The alcohol-based fuel automatic proportioning combustion system of claim 3, wherein the top of the air inlet chamber is communicated with the bottom of the right end of the combustion chamber, the side wall of the air inlet chamber is a hollow wall body with an inner cavity, the inner cavity of the side wall of the air inlet chamber is an air inlet cavity, an air inlet of the air inlet cavity is connected with the air supply device through the secondary air inlet pipe, and the wall surface of the air inlet cavity is provided with at least one air outlet hole communicated with the combustion chamber; wherein, ignition is located the bottom of air inlet chamber.

6. The alcohol-based fuel automatic proportioning combustion system of claim 5, wherein the cross section of the air inlet cavity is circular ring-shaped, the axis of the air inlet chamber inclines upwards from right to left, the top wall of the air inlet cavity is provided with a plurality of air outlet holes, and the inner side wall of the air inlet cavity is also provided with a plurality of air outlet holes.

7. The automatic proportioning combustion system of alcohol-based fuel according to claim 6, wherein the air outlet holes arranged on the top wall of the air inlet chamber are first air outlet holes, all the first air outlet holes are uniformly distributed along the same circumference, and the axis of each first air outlet hole is inclined downwards from inside to outside; set up in the inside wall of air inlet chamber the exhaust vent includes a plurality of second exhaust vent and a plurality of third exhaust vent, all the third exhaust vent is located the bottom of air inlet chamber just distributes along same circumferencial direction, all the second exhaust vent is located the top of third exhaust vent just distributes along same circumferencial direction, and every the axis of second exhaust vent is from interior to outer downward sloping.

8. The alcohol-based fuel automatic proportioning combustion system of claim 3, wherein an outlet of the main oil inlet pipe passes through one of the main air inlet pipes and then is communicated with the vaporization chamber.

9. The alcohol-based fuel automatic proportioning combustion system of claim 3, wherein the combustion device further comprises a high-pressure air delivery pipe, an inlet of the high-pressure air delivery pipe is connected with a high-pressure air device, an outlet of the high-pressure air delivery pipe is connected with an inlet of the main oil inlet pipe, and a fourth valve is arranged at an outlet of the high-pressure air delivery pipe.

10. The alcohol-based fuel vaporization burner of claim 3, wherein the vaporization chamber is located in the middle of the combustion chamber, and the left side wall of the vaporization chamber is connected with the left end of the furnace body through a connecting rod.

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