CN111795399A - A kind of alcohol-based fuel automatic proportioning combustion system - Google Patents

Abstract

The invention discloses an alcohol-based fuel automatic proportioning combustion system, comprising: a combustion device, which is used for burning the alcohol-based fuel and provides heat; and an oil supply device, which is used for providing the alcohol-based fuel to the combustion device. The oil device includes: an oil supply pipe, the outlet of which is connected to the combustion device; and a fuel delivery device, which includes: at least two storage tanks, one of which is used to store methanol, and the other storage tanks are used to store additives; at least two an oil supply pump, the oil supply pump is arranged in a one-to-one correspondence with the storage tank, and the inlet of each oil supply pump is communicated with the corresponding storage tank; and at least two first valves, the first valve and the oil supply pump are arranged in a one-to-one correspondence, each first valve The inlet of the 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 using the combustion system of the present invention can be prepared and used immediately, avoiding phenomena such as stratification and uneven mixing, so that the alcohol-based fuel can be normally and fully burned.

Description

A kind of alcohol-based fuel automatic proportioning combustion system

technical field

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

Background technique

Alcohol-based fuels are fuels that are mainly configured with alcohols (such as methanol, ethanol, butanol, etc.). Alcohol-based fuels burn most completely and have the highest heat conversion efficiency. The cleanest, greenest and most promising fuel. Alcohol-based fuels are easy to produce and can be stored, transported and used at normal temperature and pressure. No high-pressure steel cylinders are required for storage. They can be stored in ordinary metal or plastic containers. They are not as prone to poisoning and explosion as gas. high. Facing the exhaustion of petrochemical energy, alcohol-based fuel is the most potential new alternative energy. The application of alcohol-based fuel to industrial boilers, agricultural drying furnaces and other production industries that require heat supply through alcohol-based fuel burners is an important direction for the application of alcohol-based fuels at present. Since the alcohol-based fuel is liquid at room temperature, the existing alcohol-based fuel burner needs to vaporize the alcohol-based fuel in order to fully burn the alcohol-based fuel and improve the utilization efficiency.

Alcohol-based fuels are prepared by mixing methanol and combustion-supporting additives in a certain proportion. Existing alcohol-based fuels are prepared by manufacturers and stored in storage tanks for subsequent transportation and use. In the process from preparation to use, there will be a certain time difference, that is, the alcohol-based fuel will be stored for a period of time. During the storage process of alcohol-based fuels, the additives and other components will be stratified and unevenly mixed due to the problem of stable aging, which will lead to abnormal combustion of alcohol-based fuels and affect the heating efficiency. pollute the environment.

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 of ordinary skill in the art.

SUMMARY OF THE INVENTION

The object of the present invention is to provide a kind of alcohol-based fuel automatic proportioning combustion system, so as to overcome the shortcomings of existing prepared alcohol-based fuels that are prone to stratification and uneven mixing due to the time difference between preparation and use and the stable timeliness of the fuel. .

In order to achieve the above object, the present invention provides an alcohol-based fuel automatic proportioning combustion system, comprising: a combustion device for burning alcohol-based fuel and providing heat; and an oil supply device for providing the combustion device with An alcohol-based fuel, wherein the fuel supply device comprises: an fuel supply pipe, the outlet of which is connected to the combustion device; and a fuel delivery device, which includes: at least two storage tanks, one of which is used for storing methanol, The rest of the storage tanks are used to store additives; at least two oil supply pumps, which are arranged in a one-to-one correspondence with the storage tanks, and the inlet of each of the oil supply pumps is communicated with the corresponding storage tank; and at least two second oil supply pumps. A valve, the first valve is arranged in a one-to-one correspondence with the oil supply pump, 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 oil supply pipe import connection.

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

Preferably, in the above technical solution, the combustion device includes: a furnace body, which is provided with a combustion chamber with an open left end, and a vaporization chamber is arranged in the combustion chamber; at least one nozzle, each of which is arranged in the combustion chamber The right end, and each of the nozzles is communicated with the vaporization chamber; the main oil inlet pipe, the outlet of which is communicated with the vaporization chamber, the inlet 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 ; A number of main air inlet pipes, all of which are arranged at intervals along the circumferential direction of the furnace body, and the outlet of each of the main air inlet pipes is communicated with the right end of the combustion chamber, and each of the main air inlet pipes is communicated with the right end of the combustion chamber. The inlet of the main air inlet pipe is connected with the air supply device; the ignition device, the bottom of the right end of the combustion chamber is inclined downward from left to right, the ignition device is arranged at the bottom of the right end of the combustion chamber and is connected with the vaporization chamber Correspondingly arranged; a secondary oil inlet pipe, the outlet of which is communicated with the combustion chamber, and 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 secondary oil inlet pipe is connected with the outlet of the fuel supply pipe The inlet of the oil inlet pipe is provided with a second throttle valve and a third valve; and an air inlet chamber, which is located at the lower right of the furnace body and is arranged corresponding to the secondary oil inlet pipe, and the air inlet of the air inlet chamber passes through the secondary inlet pipe. The air duct is connected with the air supply device, and the air inlet chamber is provided with at least one air outlet hole communicating with the combustion chamber.

Preferably, in the above technical solution, the combustion device further comprises a buffer chamber, the buffer chamber is arranged 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, and each nozzle It communicates 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 solution, 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, and the The inner cavity of the side wall is an air inlet cavity, the air inlet of the air inlet cavity is connected with the air supply device through the secondary air inlet pipe, and at least one air inlet is provided on the wall surface of the air inlet cavity with the combustion chamber. The connected air outlet holes; wherein, the ignition device is located at the bottom of the air inlet chamber.

Preferably, in the above technical solution, the cross section of the air inlet chamber is annular, and the axis of the air inlet chamber is inclined upward from right to left, and the top wall of the air inlet chamber is provided with several The air outlet holes are also provided on the inner side wall of the air inlet cavity.

Preferably, in the above technical solution, the air outlet holes arranged on the top wall of the air inlet cavity are first air outlet holes, and all the first air outlet holes are evenly distributed along the same circumference, and each The axis of the first air outlet is inclined downward from the inside to the outside; the air outlet arranged on the inner side wall of the air inlet cavity includes several second air outlets and several third air outlets, all of which are The third air outlet holes are located at the bottom of the air inlet cavity and are distributed along the same circumferential direction, all the second air outlet holes are located above the third air outlet holes and are distributed along the same circumferential direction, and each The axes of each of the second air outlet holes are inclined downward from the inside to the outside.

Preferably, in the above technical solution, the outlet of the main oil inlet pipe is communicated with the vaporization chamber after passing through one of the main air inlet pipes.

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

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

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

1. The combustion system of the present invention includes a combustion device and an oil supply device, and the oil supply device is composed of at least two storage tanks for storing methanol and additives respectively, so as to transport methanol and additives into the oil supply pipe to mix and prepare alcohol-based fuel, and It is delivered to the combustion device in time to achieve the purpose of ready-to-use and to avoid the phenomenon of stratification and uneven mixing, so that the alcohol-based fuel can be fully burned normally.

2. A first throttle valve is provided between each oil supply pump and the corresponding first valve of the present invention, and a pressure sensor is provided on the conveying pipe connecting each first throttle valve with the corresponding oil supply pump, In order to control the pressure in the conveying pipe to be stable within a certain range through the pressure sensor, and adjust the flow rate through the first throttle valve, when the flow rate and pressure are constant, the methanol and methanol can be proportionally controlled by controlling the opening time of the first valve. The output of the additive, so that the methanol and the additive can be mixed in the fuel supply pipe in a certain proportion to prepare the alcohol-based fuel.

3. In the present invention, the alcohol-based fuel is directly transported into the combustion chamber by the secondary oil inlet pipe, so that the burner can be used for heating immediately, and the vaporization chamber is heated at the same time, so that the temperature in the vaporization chamber is gradually increased. After the temperature in the chamber reaches the temperature for vaporizing the alcohol-based fuel, the alcohol-based fuel is transported to the vaporizing chamber by the main oil inlet pipe, so that the alcohol-based fuel can be further fully mixed and vaporized in the vaporizing chamber, and the vaporized alcohol-based fuel is re-circulated from the vaporization chamber. The nozzle is transported to the combustion chamber for combustion, which can achieve the purpose of immediate use; the vaporization chamber is set in the combustion chamber, which has high heat transfer efficiency, shortens the vaporization time of alcohol-based fuel, and reduces the heat dissipation rate. During the heating process of the external equipment, the alcohol-based fuel is vaporized by heating the vaporization chamber, and no additional heating device is required, so that the alcohol-based fuel can be fully vaporized and burned, so as to improve the heat production efficiency and effectively reduce the manufacturing and use costs.

4. The top of the air inlet chamber of the present invention is communicated with the bottom of the combustion chamber, the cross section of the air inlet chamber is annular, and the axis of the air inlet chamber is inclined upward from right to left, and the top wall of the air inlet chamber is provided with a There are several air outlet holes, and there are also several air outlet holes on the inner side wall of the air inlet chamber. The alcohol-based fuel atomized by the small hole at the outlet can be fully burned, and the generated flame is sprayed into the vaporization chamber and the buffer chamber in the combustion chamber, which improves the heating efficiency of the vaporization chamber and further ensures that the alcohol-based fuel can be fully and quickly. Vaporization, and the burner can be used for heating immediately to achieve the purpose of instant use; wherein, the left end of the combustion chamber is open, the air inlet chamber is located at the bottom of the right end of the combustion chamber, and the axis of the air inlet chamber is from right to Left and upward inclined, 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, so as to prevent the alcohol-based fuel atomized and input by the secondary oil inlet pipe from being ejected from the opening at the left end of the combustion chamber, so that the The alcohol-based fuel atomized by the secondary oil inlet pipe can be fully burned in the air inlet chamber and the combustion chamber.

5. The combustion device of the present invention includes a high-pressure air delivery pipe. When it is necessary to clean up the residual fuel in the main oil inlet pipe, the vaporization chamber and the buffer chamber and the residual substances produced by the combustion of the fuel, close each of the first and third valves and open the first and third valves. The four valves and the second valve pass high-pressure gas into the vaporization chamber to remove residual substances in the main oil inlet pipe, vaporization chamber and buffer chamber, so as to achieve the purpose of cleaning the furnace chamber and improve the service life of the burner.

Description of drawings

1 is a schematic diagram of the main structure of an alcohol-based fuel automatic proportioning combustion system according to the present invention.

FIG. 2 is an enlarged schematic view of the X part in FIG. 1 according to the present invention.

Description of main reference signs:

1-furnace body, 2-connecting rod, 3-vaporization chamber, 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-Fuel supply pipe, 12-Second throttle valve, 13-First valve, 14-First throttle valve, 15-Pressure sensor, 16-Oil supply pump, 17-Storage tank , 18-time oil inlet pipe, 19-time air inlet pipe, 20-buffer chamber, 21-nozzle, 22-ignition device, 23-air inlet chamber, 24-air inlet chamber, 25-first air outlet, 26- The second air outlet, 27-the third air outlet.

Detailed ways

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

Unless expressly stated otherwise, throughout the specification and claims, the term "comprising" or its conjugations such as "comprising" or "comprising" and the like will be understood to include the stated elements or components, and Other elements or other components are not excluded.

1 and 2 show a schematic structural diagram of an alcohol-based fuel automatic proportioning combustion system according to a preferred embodiment of the present invention. The combustion engine includes a combustion device and an oil supply device. 1 , the combustion device is used to burn alcohol-based fuel and provide heat; the oil supply device is used to provide alcohol-based fuel to the combustion device, wherein the oil supply device includes an oil supply pipe 11 and a fuel delivery device, and the outlet of the oil supply pipe 11 Connected to a combustion device to deliver alcohol-based fuel to the combustion device. The fuel delivery device includes at least two storage tanks 17 , at least two fuel supply pumps 16 and at least two first valves 13 . Among the two storage tanks 17 , one of the storage tanks 17 is used to store methanol, and the other storage tanks 17 are used to store additives. The number of storage tanks 17 for storing additives is determined according to the types of additives required to prepare the alcohol-based fuel. , a storage tank 17 is used to store an additive. The oil supply pumps 16 and the storage tanks 17 are arranged in a one-to-one correspondence, 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 oil supply pipe 11 is mixed to form an alcohol-based fuel; the first valve 13 is arranged in a one-to-one correspondence with the oil supply pump 16, the inlet of each first valve 13 is connected with the outlet of the corresponding oil supply pump 16, and the outlet of each first valve 13 is connected with the oil supply Inlet connection of pipe 11. The combustion system of the present invention includes a combustion device and an oil supply device, and the oil supply device includes at least two storage tanks 17 for storing methanol and additives respectively, so as to transport methanol and additives into the oil supply pipe 11 to mix and prepare alcohol-based fuel, and It is delivered to the combustion device in time to achieve the purpose of ready-to-use and to avoid the phenomenon of stratification and uneven mixing, so that the alcohol-based fuel can be fully burned normally.

Referring to FIG. 1 , preferably, the fuel delivery device further includes at least two first throttle valves 14 for adjusting the flow rate. The first throttle valves 14 are arranged in a one-to-one correspondence with the fuel supply pump 16 , and each first throttle valve The inlet of the valve 14 is connected with the outlet of the corresponding oil supply pump 16 through a delivery pipe, and the outlet of each first throttle valve 14 is connected with the inlet of the corresponding first valve 13; wherein, each delivery pipe is provided with a pressure The sensor 15 is used to detect the pressure of the liquid in the conveying pipe, so as to control the pressure in the conveying pipe to be stable within a certain range, and adjust the flow rate through the first throttle valve 14. When the flow rate and pressure are constant, the first valve can be controlled by 13 is turned on to control the output of methanol and additives in proportion, so that methanol and additives can be mixed in the fuel supply pipe 11 to prepare alcohol-based fuel in a certain proportion.

1 and 2 , preferably, the combustion device includes a furnace body 1 , at least one nozzle 21 , a main oil inlet pipe 6 , several main air inlet pipes 5 , an ignition device 22 , a secondary oil inlet pipe 18 and an air inlet chamber 24 . The furnace body 1 is provided with a combustion chamber 4 with an open left end. The combustion chamber 4 is provided with a vaporization chamber 3. The vaporization chamber 3 is arranged in the combustion chamber 4, which can improve the heat transfer efficiency, shorten the vaporization time of alcohol-based fuel, and reduce the vaporization chamber. The heat dissipation rate of 3, by using the heat generated by the combustion chamber 4 to heat the external equipment, heats the vaporization chamber 3, thereby vaporizing the alcohol-based fuel, and does not need to set up a heating device, so that the alcohol-based fuel can be fully vaporized and heated. Combustion, improve heat production efficiency, and effectively reduce manufacturing and use costs. The right end of the combustion chamber 4 is provided with at least one nozzle 21, each nozzle 21 is arranged at the right end of the combustion chamber 4, and each nozzle 21 communicates with the vaporization chamber 3, so that the vaporized alcohol-based fuel in the vaporization chamber 3 passes through the nozzle 21 It is ejected and burned in the combustion chamber 4 . The outlet of the main oil inlet pipe 6 is connected with the vaporization chamber 3, and 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 chamber 3, The vaporized alcohol-based fuel is injected into the combustion chamber 4 by the nozzle 21 for combustion. The inlet of the main oil inlet pipe 6 is provided with a second valve 7 so as to control the opening and closing of the main oil inlet pipe 6 . All the main air inlet pipes 5 are arranged at intervals along the circumferential direction of the furnace body 1, and the outlet of each main air inlet pipe 5 is communicated with the right end of the combustion chamber 4, and the inlet of each main air inlet pipe 5 is connected to the air supply device It is connected to deliver air into the combustion chamber 4 for combustion support, and can eject the heat in the combustion chamber 4 to the left end opening of the combustion chamber 4 . Wherein, the air supply device may be a blower. The bottom of the right end of the combustion chamber 4 is inclined downward from left to right, and the ignition device 22 is arranged at the bottom of the right end of the combustion chamber 4 and corresponding to the vaporization chamber 3 for ignition. Wherein, the ignition device 22 can be a conventional electronic igniter. The outlet of the secondary oil inlet pipe 18 is communicated with the combustion chamber 4, and the outlet of the secondary oil inlet pipe 18 is arranged corresponding to the ignition device 22, the inlet of the secondary oil inlet pipe 18 is connected with the outlet of the oil supply pipe 11, and the inlet of the secondary oil inlet pipe 18 is provided with The second throttle valve 12 and the third valve 10, the third valve 10 can control the opening and closing of the secondary oil inlet pipe 18, the second throttle valve 12 can adjust the size of the liquid flow in the secondary oil inlet pipe 18, and the flow rate in the oil supply pipe 11 After the alcohol-based fuel is atomized into the bottom of the right end of the combustion chamber 4 through the small hole at the outlet of the secondary oil inlet pipe 18, the ignition device 22 is ignited, and the alcohol input from the small hole at the outlet of the secondary oil inlet pipe 18 can be directly atomized. The base fuel is ignited for combustion heat. The air inlet chamber 24 is located at the lower right of the furnace body 1 and is arranged corresponding to the secondary oil inlet pipe 18 . The air outlet connected to the chamber 4 is used to assist the combustion of the alcohol-based fuel delivered by the secondary oil inlet pipe 18, so that the heat of combustion of the alcohol-based fuel from the secondary oil inlet pipe 18 is sprayed to the vaporization chamber 3 to heat the vaporization chamber 3. . In the present invention, the alcohol-based fuel is firstly atomized and input into the combustion chamber 4 through the small hole at the outlet of the secondary oil inlet pipe 18 to be burned in the combustion chamber 4, so that the burner can be used for heating immediately, and at the same time, the vaporization chamber 3 is heated, so that the vaporization chamber 3 The temperature inside gradually rises, and when the temperature in the vaporization chamber 3 reaches the temperature at which the alcohol-based fuel is vaporized, the alcohol-based fuel in the fuel supply pipe 11 is transported into the vaporization chamber 3 through the main fuel inlet pipe 6, so that the alcohol-based fuel can be evaporated. It can be further fully mixed and vaporized in the vaporization chamber 3, and the vaporized alcohol-based fuel is then transported from the nozzle 21 to the combustion chamber 4 for combustion, which can achieve the purpose of instant use.

1, preferably, the vaporization chamber 3 is located in the middle of the combustion chamber 4 to further improve the heat transfer efficiency and reduce the heat dissipation speed of the vaporization chamber 3; and the left side wall of the vaporization chamber 3 is connected to the left end of the furnace body 1 through the connecting rod 2 connected to fix and support the vaporization chamber 3 to prevent the vaporization chamber 3 from sagging after being deformed by heat. The cross section of the vaporization chamber 3 in the vertical direction is circular, that is, the axis of the vaporization chamber 3 is distributed along the left-right direction, so that the flame in the combustion chamber 4 can be sprayed to the left along the gap between the vaporization chamber 3 and the furnace body 1 out for heating.

1 , the combustion device further includes a buffer chamber 20 , the buffer chamber 20 is arranged at the right end of the combustion chamber 4 , and the ignition device 22 is located below the buffer chamber 20 , so that the heat in the combustion chamber 4 can be transferred to the buffer chamber 20 , to heat the buffer chamber 20, and the right end of the vaporization chamber 3 is connected to the left end of the combustion chamber 4, so that the vaporized alcohol-based fuel in the vaporization chamber 3 can enter the buffer chamber 20 to ensure the combustion efficiency. The buffer chamber 20 communicates and is located at the left end of the buffer chamber 20, so that the axis of the nozzle 21 can be horizontally distributed and correspond to the left end opening of the combustion chamber 4, so as to eject the heat in the combustion chamber 4 to its left end opening. Further preferably, a temperature sensor is provided in the buffer chamber 20. Since the buffer chamber 20 is located at the right end of the combustion chamber 4, the temperature of the buffer chamber 20 will be slightly lower than that of the vaporization chamber 3. When the temperature sensor detects that the temperature in the buffer chamber 20 reaches When the alcohol-based fuel is vaporized, the temperature in the vaporization chamber 3 must also reach the vaporization temperature of the alcohol-based fuel. Therefore, it can be accurately judged by the temperature sensor whether the temperature in the buffer chamber 20 and the vaporization chamber 3 has reached the temperature for vaporizing the alcohol-based fuel. The temperature in the buffer chamber 20 does not meet the requirements, so that the alcohol-based fuel vaporized in the vaporization chamber 3 is cooled and liquefied when passing through the buffer chamber 20 . In addition, preferably, all the nozzles 21 are evenly distributed along the same circumference, and the circumference where all the nozzles 21 are located is distributed coaxially with the axis of the vaporization chamber 3, so as to improve the uniformity of the flame.

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 with an inner cavity, and the side wall of the air inlet chamber 24 The inner cavity is the air inlet cavity 23, the air inlet of the air inlet cavity 23 is connected with the air supply device through the 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 located at the bottom of the air inlet chamber 24 . Further preferably, the cross section of the air inlet chamber 23 is annular, and the axis of the air inlet chamber 24 is inclined upward from right to left, so as to burn the alcohol-based fuel atomized and input from the small hole of the outlet of the secondary oil inlet pipe 18. The heat of the air inlet is blown to the buffer chamber 20 and the vaporization chamber 3, and the buffer chamber 20 and the vaporization chamber 3 are fully heated. There are also a number of air outlet holes; wherein, the left end of the combustion chamber 4 is open, the air inlet chamber 24 is located at the bottom of the right end of the combustion chamber 4, and the axis of the air inlet chamber 24 is inclined upward from right to left, and the secondary oil inlet pipe 18. The outlet is arranged at the bottom of the air inlet chamber 24 and corresponds to the vaporization chamber 3 and the buffer chamber 20 to prevent the alcohol-based fuel atomized and input by the secondary oil inlet pipe 18 from being ejected from the left end opening of the combustion chamber 4, so that the secondary oil inlet pipe 18 The alcohol-based fuel input by atomization can be fully burned in the air inlet chamber 24 and the combustion chamber 4 . Again, it is further preferred that the air outlet holes provided on the top wall of the air inlet cavity 23 are the first air outlet holes 25, and all the first air outlet holes 25 are evenly distributed along the same circumference, and all the first air outlet holes 25 are evenly distributed along the same circumference. The circumference where it is located is coaxial with the axis of the air inlet cavity 23, and the axis of each first air outlet 25 is inclined downward from the inside to the outside; The air holes 26 and a number of third air outlets 27, all the third air outlets 27 are located at the bottom of the air inlet cavity 23 and are distributed along the same circumferential direction, and the third air outlets 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 are distributed along the same circumferential direction, and the axis of each second air outlet hole 26 is inclined downward from the inside to the outside. In the present invention, the ignition device 22 and the end of the secondary oil inlet pipe 18 that communicate with the combustion chamber 4 are all arranged at the bottom of the air inlet chamber 24, and the third air outlet hole 27 corresponds to the secondary oil inlet pipe 18, so that the secondary oil inlet pipe The alcohol-based fuel atomized by the small holes at the outlet of 18 can be fully vaporized and burned, and the first air outlet 25 and the second air outlet 26 are both inclined and arranged, which can make the small holes at the outlet of the secondary oil inlet pipe 18 mist mist. The flame generated by the combustion of the input alcohol-based fuel is sprayed to the bottom of the buffer chamber 20 and the right end of the vaporization chamber 3, which improves the heating efficiency of the vaporization chamber 3 and the buffer chamber 20, and further ensures that the alcohol-based fuel can be fully and quickly vaporized. And the burner can be used for heating immediately. The air supply device may be a blower, and the air inlet chamber 24 and the main air inlet duct 5 may share one blower, or may use different blowers separately.

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

1, preferably, the combustion device further includes a high-pressure air delivery pipe 9, the inlet of the high-pressure air delivery pipe 9 is connected with the high-pressure air device, the outlet of the high-pressure air delivery pipe 9 is connected with the inlet of the main oil inlet pipe 6, and the high-pressure air The outlet is provided with a fourth valve 8; when it is necessary to deliver alcohol-based fuel to the vaporization chamber 3, the fourth valve 8 is closed; when it is necessary to clean the main oil inlet pipe 6, the vaporization chamber 3 and the residual fuel in the buffer chamber 20 and the combustion of the fuel When the residual substances are left, close each of the first valve 13 and the third valve 10 and open the fourth valve 8 and the second valve 7, and inject high-pressure gas into the vaporization chamber 3 to remove the main oil inlet pipe 6, vaporization chamber 3 and buffer. Residual substances in the chamber 20 can be removed to achieve the purpose of cleaning the furnace cavity and improve the service life of the burner.

1, preferably, the outlet of the main oil inlet pipe 6 extends to the left end of the vaporization chamber 3 to ensure that the alcohol-based fuel has sufficient time to vaporize, so that the alcohol-based fuel delivered from the main oil inlet pipe 6 is fully vaporized. It is then transported from the vaporization chamber 3 to the buffer chamber 20 to prevent the liquid alcohol-based fuel from entering the buffer chamber 20 .

The control mode of the combustion system of the present invention can be manual manual control, and can also be set to automatic control mode, preferably automatic control, that is, the combustion system also includes a controller, all the first valve 13, the second valve 7, the third valve The three valves 10 and the fourth valve 8 are all solenoid valves. The ignition device 22, the air supply device, the temperature sensor and all the valves, the throttle valve, the pressure sensor 15, and the fuel supply pump 16 are all connected to the controller. the first valve 13 and the fuel supply pump 16, and adjust the opening of the corresponding first throttle valve 14 according to the pressure information sent by the pressure sensor 15, so that methanol and additives can be mixed in the fuel supply pipe 11 in a certain proportion The alcohol-based fuel is prepared; the third valve 10 and the ignition device 22 are controlled to be opened simultaneously, and the liquid alcohol-based fuel in the oil supply pipe 11 is atomized and imported into the combustion chamber 4 by the secondary oil inlet pipe 18, and is ignited by the ignition device 22. , so that the burner can be used for heating immediately, and under the action of the strong wind input from the air inlet chamber 24 during combustion, the oxygen-enriched environment is maintained in the combustion chamber 4, so that the atomized alcohol-based fuel has enough oxygen to fully burn, and The burned heat is sprayed to the upper left to heat the vaporization chamber 3 and the buffer chamber 20, so that the temperature in the vaporization chamber 3 and the buffer chamber 20 gradually increases. When the controller detects the temperature information sent by the temperature sensor After reaching the temperature for vaporizing the alcohol-based fuel, the second valve 7 is controlled to open, and the liquid alcohol-based fuel in the fuel supply pipe 11 is transported to the vaporization chamber 3 by the main oil inlet pipe 6 to further mix and vaporize methanol and additives, The vaporized alcohol-based fuel is then transported from the nozzle 21 to the combustion chamber 4 for combustion. Under the strong wind input from the main air inlet pipe 5, the combustion chamber 4 maintains an oxygen-rich environment in the combustion chamber 4, so that the alcohol-based fuel is fully burned. And the heat is ejected from the left end opening of the combustion chamber 4 for heating. Among them, the combustion chamber 4 can keep heating the vaporization chamber 3 while burning the vaporized alcohol-based fuel, so that the alcohol-based fuel continuously input from the main oil inlet pipe 6 is fully vaporized and then continuously input into the combustion chamber 4. After the alcohol-based fuel in the main oil inlet pipe 6 is used for normal heating, the oil supply amount of the secondary oil supply pipe 11 can be closed or reduced as required. When it is necessary to turn off the burner, the controller controls and closes all the fuel supply pumps 16, valves and throttle valves, so that the main oil inlet pipe 6 and the secondary oil inlet pipe 18 stop delivering alcohol-based fuel to the combustion chamber 4, and keep the air supply device continuously feeding. Wind, reduce the temperature in the furnace, so that the burner can achieve the effect of turning off and stopping. When it is necessary to clean the residual substances in the main oil inlet pipe 6, the vaporization chamber 3 and the buffer chamber 20, 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, and open the second valve 7 and the fourth valve 8. The high-pressure air device feeds high-pressure gas into the vaporization chamber 3 to remove 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 improve the service life of the burner.

The combustion system of the present invention can prepare and use alcohol-based fuel on site, so as to achieve the purpose of current preparation and use, and to avoid the phenomena such as stratification and uneven mixing of components such as methanol and additives, so that the alcohol-based fuel can be properly and fully burned.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. These descriptions are not intended to limit the invention to the precise form disclosed, and obviously many changes and modifications are possible in light of the above teachings. The exemplary embodiments were chosen and described for the purpose of explaining certain principles of the invention and their practical applications, to thereby enable one skilled in the art to make and utilize various exemplary embodiments and various different aspects of the invention. Choose and change. The scope of the invention is intended to 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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