Plateau oxygen-combined warm air blower and combustion system thereof

Abstract

The application discloses a plateau oxygen-combined warm air blower and a combustion system thereof, and relates to the field of warm air blowers, which comprises a box body, the inside of the box body is divided into a combustion engine bin, a heat exchanger bin and a centrifugal fan bin, a combustion engine is fixedly arranged in the combustion engine bin, a heat exchanger is arranged in the heat exchanger bin, the combustion engine is connected with the heat exchanger, and the combustion engine heats the heat exchanger, a centrifugal fan is fixedly arranged in the centrifugal fan bin, an air outlet of the centrifugal fan is communicated with the heat exchanger bin, and the centrifugal fan is used for sending air to the heat exchanger bin; when the air passes through the heat exchanger bin, the air can be heated; an oxygen production module is further arranged in the box body, the oxygen production module is communicated with an air inlet pipe, and the oxygen production module is used for increasing the oxygen content in the air. The combustion engine is used for heating the air, the heated air is discharged into a room or a tent from an air outlet pipe, and the tent is heated. The oxygen production module is arranged, the oxygen produced by the oxygen production module is heated together with the air, and then the oxygen and the air are discharged into the tent, so that the oxygen is provided to the inside of the tent.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of fan heaters, in particular to a plateau oxygen accompanying fan heater and a combustion system thereof. BACKGROUND

[0002] Fan heaters, as a kind of heating equipment, are widely used in cold regions. For example, in the northeast of China, the duration of winter is relatively long, generally about 5 months, and the temperature can reach minus 40 to 50 degrees. Therefore, heating is needed for indoor heating. For cities and other developed places, unified heating equipment is used. For rural areas, basically, the way of heating is still using the earth stove, which is not safe to use and pollutes a lot. Therefore, a fan heater specially used for heating is developed. For example, the patent fan heater with the announcement number CN114992714A uses electricity to heat.

[0003] However, it is not suitable for the field environment. In the field, there is not enough power source, especially for the army training or people who like to explore the field. Training in the plateau environment is very suitable for the army's exercise because of the vast land and the lack of personnel. It is also a kind of exercise for the environment, but the army usually sets up a tent as a temporary residence when training, and the soldiers live in the tent. However, there is also a lack of sufficient power, so the electric fan heater is not suitable.

[0004] In addition, for the environment in China, the eastern plain area is relatively stable and basically will not encounter geological disasters, while the western plateau mountain area is very frequent in natural disasters. Especially in the case of cold weather, the temperature of the temporary tent is relatively low, which is cruel for personnel to live in. The electric fan heater is also not suitable, and in the case of disaster, there is basically no power to use. Moreover, in the plateau case, the atmosphere is relatively thin, and the oxygen content is low. For normal people, oxygen deficiency will cause altitude sickness, and even high altitude disease, which is serious and will endanger life.

[0005] Therefore, the present application discloses a plateau oxygen accompanying fan heater and a combustion system thereof, which solves the problem of using a fan heater in a plateau environment and without power supply. SUMMARY

[0006] The purpose of the present application is to provide a plateau oxygen accompanying fan heater to solve the problems raised in the background art.

[0007] To solve the above technical problems, the present application provides the following technical scheme: a plateau oxygen accompanying fan heater, comprising a box structure composed of a lower shell and an upper shell, an air inlet pipe and an air outlet pipe are respectively installed on both sides of the box and are in communication with the inner cavity of the box,

[0008] The inner part of the box is three compartments of combustion engine compartment, heat exchanger compartment and centrifugal fan compartment; the combustion engine compartment is internally fixedly installed with a combustion engine, the heat exchanger compartment is internally installed with a heat exchanger, the combustion engine is connected with the heat exchanger together and heats the heat exchanger, the centrifugal fan compartment is fixedly installed with a centrifugal fan, the air outlet of the centrifugal fan is communicated with the heat exchanger compartment for sending air to the heat exchanger compartment, the air inlet pipe is communicated with the centrifugal fan compartment, the air outlet pipe is communicated with the heat exchanger compartment, and the air can be heated when passing through the heat exchanger compartment;

[0009] An oxygen making module is also installed in the box and communicated with the air inlet pipe for increasing the oxygen content in the air.

[0010] A combustion system of a plateau oxygen accompanying fan heater:

[0011] The combustion engine is a light oil combustion engine, the nozzle of the light oil combustion engine is installed with the heat exchanger together and extends into the inside of the heat exchanger, the inside of the heat exchanger is a combustion chamber, the heat exchanger is further installed with a chimney communicated with the combustion chamber, the flame of the combustion engine can burn in the inside of the heat exchanger, the side wall of the heat exchanger is heated, and the waste gas generated by combustion can be discharged through the chimney.

[0012] Preferably, a flame guide column is fixedly installed in the inside of the combustion chamber, the nozzle of the combustion engine is on the same axis as the flame guide column, the atomized oil sprayed from the nozzle of the combustion engine flows to the side wall of the heater under the action of the flame guide column, and the flame generated by the combustion of the atomized oil directly heats the side wall.

[0013] Preferably, the flame guide column is a structure similar to a wine bottle, the front end of the flame guide column is a ball-shaped flow guide head, and the flow guide head and the flame guide column are a tapered slope ring in structure;

[0014] A skirt plate is fixedly installed along the tangential direction of the edge of the flow guide head and the extension direction of the slope ring, and the atomized oil can fly outward along the skirt plate when sprayed from the nozzle.

[0015] Preferably, an air inlet pipe is further fixedly installed at the rear end of the flame guide column, the air inlet pipe extends into the inside of the chimney and is coaxially arranged with the chimney;

[0016] The top of the air inlet pipe is a sealing structure, a horizontal pipe is fixedly installed at the upper end of the air inlet pipe, one end of the horizontal pipe extends from the inside of the chimney to the outside, and the horizontal pipe is lower than the position of the top of the chimney,

[0017] A plurality of uniformly distributed air holes are formed in the flame guide column directly below the skirt plate, air can enter the combustion chamber from the air inlet pipe during combustion of the atomized oil, and the waste gas is discharged from the chimney.

[0018] Preferably, a circular ring net parallel to the flame guide column is fixedly installed at the edge of the skirt plate, the flame can heat the circular ring net, and the oil drops sprayed on the circular ring net can evaporate quickly.

[0019] Preferably, a pressure valve is fixedly installed on the chimney, and the opening pressure of the pressure valve is greater than the external air pressure, so that the inside of the combustion chamber forms high pressure, and the flame combustion temperature increases under high pressure.

[0020] Preferably, the horizontal pipe is connected with a high-pressure chamber through a pipeline, the high-pressure chamber is installed with a high-pressure air pump, and a one-way valve is installed between the high-pressure chamber and the horizontal pipe.

[0021] Preferably, the pressure valve comprises a shell, a support frame is fixedly installed in the inside of the shell, a piston is installed in the inside of the shell, a support column is fixedly installed on the upper end of the piston, the support column is slidingly installed on the support frame, a spring is installed between the support frame and the piston, and the spring is located on the outer side of the support column and provides elastic force to the piston.

[0022] Preferably, an adjusting cylinder is threadedly installed on the outside of the chimney, the adjusting cylinder is flush with the horizontal pipe, the adjusting cylinder can block the opening of the horizontal pipe, and the size of the opening of the horizontal pipe is adjusted.

[0023] Compared with the prior art, the present application has the following beneficial effects:

[0024] The present application sets up a combustion engine chamber, a heat exchanger chamber and a centrifugal machine chamber, adopts a combustion engine, heats air, and the heated air is discharged into a room or a tent from an air outlet pipe to heat the tent. The present application sets up an oxygen generator module, and the oxygen generated by the oxygen generator module is discharged into the tent together with the heated air to provide oxygen for the inside of the tent. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a front view of the box body of the present application;

[0026] Figure 2 It is a sectional view of A-A in the present application; Figure 1

[0027] Figure 3 It is a sectional view of B-B in the present application; Figure 1

[0028] It is a sectional view of the box body and the heat exchanger of the present application; Figure 4

[0029] It is a sectional view of the flame guide column of the present application; Figure 5

[0030] It is a structure diagram of the flame guide column and the circular ring net of the present application; Figure 6

[0031] It is a sectional view of the flame guide column and the circular ring net of the present application; Figure 7

[0032] Figure 8 ​​Structure diagram of the flame guide column and the air inlet pipeline of the present application;

[0033] Figure 9 Sectional view of the box body and the pressure valve of the present application;

[0034] Figure 10 Linear table of the influence of pressure on flame temperature of the present application;

[0035] Figure 11 Structure diagram of the pressure valve of the present application.

[0036] In the figure: 1, lower shell; 2, flame guide column; 3, centrifugal fan; 4, air outlet pipe; 5, oxygen generation module; 6, upper shell; 7, chimney; 8, adjusting cylinder; 9, air inlet pipeline; 10, air inlet pipe; 11, combustion engine; 12, apron; 13, slope ring; 14, flow guide head; 15, horizontal pipe; 16, air hole; 17, circular ring net; 18, shell; 19, piston; 20, spring; 21, support column; 22, support frame; 23, support ring; 24, high-pressure chamber; 25, heat exchanger. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0038] Please refer to Figures 1-3 The present embodiment provides a highland oxygen-combined air heater, which comprises a box body composed of a lower shell 1 and an upper shell 6.

[0039] The inside of the box body is divided into three independent compartments, i.e., a combustion engine compartment, a heat exchanger compartment and a centrifugal fan compartment. A partition plate is fixedly installed between the combustion engine compartment and the heat exchanger compartment to separate the two compartments. A combustion engine 11 is fixedly installed in the combustion engine compartment, and a heat exchanger 25 is installed in the heat exchanger compartment. The heat exchanger 25 is fixedly installed on the partition plate, and the combustion engine 11 and the heat exchanger 25 are connected together, with the nozzle of the combustion engine 11 extending into the inside of the heat exchanger 25, so that the flame of the combustion engine 11 can heat the heat exchanger 25. A centrifugal fan 3 is fixedly installed in the centrifugal fan compartment, and the air outlet of the centrifugal fan 3 is communicated with the heat exchanger compartment for supplying air to the heat exchanger compartment. An air inlet pipe 10 is also flange-mounted on the upper shell 6, and the air inlet pipe 10 is communicated with the centrifugal fan compartment for providing air source for the centrifugal fan.

[0040] The lower shell 1 is fixedly provided with an air outlet pipe 4, which is communicated with the heat exchanger bin. When the air passes through the heat exchanger bin, the air can be heated. The heated air in the heat exchanger bin is discharged through the air outlet pipe 4.

[0041] An oxygen generating module 5 is also installed in the box. The oxygen generating module 5 is composed of two parts. One is a compressed air power system, which is installed in the centrifugal fan bin and is arranged on the bracket on the upper side of the centrifugal fan and is connected with the air inlet pipe 10 to increase the oxygen concentration of the air supply and improve the high altitude oxygen deficiency environment. The other part is an oxygen generating system, which is installed on the side of the oil tank. The air is sent to the oxygen generating system by the compressor to separate high oxygen concentration gas, such as a membrane separation oxygen generator or a molecular sieve oxygen generator. Taking the molecular sieve oxygen generator as an example, the nitrogen and oxygen in the air are separated by using the adsorption performance of the molecular sieve and by physical principles and by using a large displacement oil-free compressor as power.

[0042] The heated air discharged from the air outlet pipe 4 can be directly introduced into the tent to heat the inside of the tent. Especially in the plateau environment, sufficient oxygen and temperature can be provided to the inside of the tent to improve the environment and improve the comfort of life.

[0043] In actual production and use, the combustion machine 11 is a light oil combustion machine, such as a diesel combustion machine. The diesel oil is pressurized by an oil pump, atomized through an oil nozzle, ignited by a high-pressure ignition needle, and the combustion machine is provided with a fan to provide fresh air for the diesel combustion (which is the prior art). The inside of the heat exchanger is a combustion chamber. The nozzle of the combustion machine 11 is installed with the heat exchanger and extends into the combustion chamber in the inside of the heat exchanger. The flame can be ignited in the combustion chamber. The heat exchanger is also provided with a chimney 7 which is communicated with the combustion chamber. The flame of the combustion machine 11 can be burned in the inside of the heat exchanger to heat the side wall of the heat exchanger. The waste gas generated by the combustion can be discharged through the chimney. As shown in Figure 1 The inside of the heat exchanger bin and the chimney 7 are wrapped with thermal insulation cotton for heat preservation to reduce heat loss.

[0044] In this embodiment, please refer to Figure 4 The inside of the combustion chamber is fixedly provided with a flame guide column 2 which has a structure similar to a wine bottle. The flame guide column 2 is on the same axis as the nozzle of the combustion machine 11. The atomized oil sprayed from the combustion machine 11 flows to the side wall of the heat exchanger under the action of the flame guide column 2. The front end of the flame guide column 2 is a ball-shaped flow guide head 14. The flow guide head 14 and the flame guide column 2 are connected by a conical slope ring 13. The atomized oil sprayed from the combustion machine 11 will fly to the outside under the action of the flow guide head 14, as shown in Figure 4The flame or fire of the atomized oil can directly contact with the side wall of the heat exchanger when the atomized oil is ignited, and directly heat the side wall of the heat exchanger. Compared with the prior art that the atomized oil is directly sprayed from the nozzle, the atomized oil is horizontally sprayed along the axis of the nozzle due to the pressure provided by the oil pump when the atomized oil is directly sprayed, the atomized oil is combusted in the middle of the burner, and there is no contact between the flame and the side wall of the heater when the flame heats the side wall of the heater. The flame first heats the air in the combustion chamber, and the air transfers heat to the side wall of the heater, and the heating efficiency is not high by using air as the heat transfer medium. By adding the flame guide column 2, the atomized oil is scattered to the two sides of the nozzle axis under the action of the flow guide head 14 of the flame guide column 2, as shown in Figure 2 When the atomized oil is combusted, the flame directly heats the side wall of the heater, the heater can directly heat the air, and the heating effect of the heater is better, and the heat loss caused by using air to transfer heat is avoided.

[0045] The slope ring 13 is a conical structure, and the diameter of the side of the slope ring 13 away from the nozzle is greater than the side close to the nozzle. The slope ring 13 also has a guiding effect on the atomized oil and the flame, so that the atomized oil and the flame are scattered to the outside. Part of the flame directly heats the slope ring 13, and the oil droplets falling on the slope ring 13 rapidly evaporate and combust under high temperature, thereby increasing the width of the flame, so that the flame can directly adhere to the side wall of the heat exchanger, and directly heat the side wall of the heat exchanger.

[0046] Please refer to Figure 5 The skirt plate 12 is fixedly installed along the tangential direction of the edge of the flow guide head 14 and the extension direction of the slope ring 13. When the atomized oil is sprayed from the nozzle, the atomized oil can be scattered to the outside along the skirt plate 12. The skirt plate 12 prolongs the length of the flow guide head 14 and the slope ring 13, and has a longer guiding path for the atomized oil when the atomized oil is scattered to the outside, so that the atomized oil is better scattered to the outside.

[0047] Correspondingly, when the oil droplets fall on the flow guide head 14 or the entire flame guide column 2, the oil droplets can also rapidly evaporate and combust, and the combustion effect is the same as that of the slope ring 13, which will not be described herein.

[0048] Since the combustion chamber is a closed cavity, the air used for combustion of the flame is provided by a fan. When the atomized oil is combusted at the front end of the flame, a large amount of oxygen is consumed, and there is not enough oxygen for combustion of the atomized oil at the rear end of the flame, so that the atomized oil is not fully combusted (as shown by the dashed line a in Figure 4 The part close to the burner 11 is the front end of the flame, and the dashed line is approximately the oxygen boundary).

[0049] Therefore in further embodiments, the flame guide column 2 is provided as a hollow structure, and a plurality of air holes 16 are formed in the flame guide column 2. An air inlet pipe 9 is fixedly installed at the rear end of the flame guide column 2, as shown in Figure 4 and Figure 8 The air inlet pipe 9 extends into the interior of the chimney 7 and is coaxially arranged with the chimney 7. A gap is left between the air inlet pipe 9 and the chimney 7, so that the exhaust gas generated in the heat exchanger can be discharged.

[0050] The top of the air inlet pipe 9 is a sealed structure, which can prevent the exhaust gas from entering the air inlet pipe 9. Four horizontal pipes 15 are fixedly installed at the upper end of the air inlet pipe 9, as shown in Figure 8 The horizontal pipes 15 extend from the interior of the chimney 7 to the outside and are in communication with the outside air, so that air can be introduced into the air inlet pipe 9. The horizontal pipes 15 are lower than the top of the chimney 7. An adjusting cylinder 8 is threadedly installed at the outside of the chimney 7 and is flush with the horizontal pipes 15. By changing the position of the adjusting cylinder 8, the size of the opening of the horizontal pipes 15 can be adjusted. When the adjusting cylinder 8 is at the bottom, the opening of the horizontal pipes 15 can be closed.

[0051] Under the action of the chimney effect, the hot air with small density rises and is discharged from the chimney 7. A negative pressure is generated in the combustion chamber, and the air with low temperature outside enters the interior of the flame guide column 2 from the horizontal pipes 15 and is discharged from the air holes 16, directly contacting the burning atomized oil to provide oxygen for the atomized oil and ensure the combustion of the atomized oil.

[0052] When the atomized oil is sprayed from the nozzle, it has a backward flow rate. The pressure is small at the place with large flow rate, which accelerates the gas in the flame guide column 2 to mix with the atomized oil from the air holes 16 to provide sufficient oxygen for the atomized oil. The hot air flow enters the tail of the combustion chamber following the spraying force of the nozzle and is discharged from the chimney 7. New air continuously enters the flame guide column 2.

[0053] In this embodiment, since the flame has uncertainty of spreading or bursting outward, the air holes 16 are located directly below the apron 12. The atomized oil and the flame flow along the apron 12 under the guidance of the apron 12. The flame does not enter the air holes 16 when it spreads or bursts, and the flame does not enter the flame guide column 2. The situation that the air inlet effect is poor due to the blockage of the air holes 16 by the flame does not occur, as shown in Figure 5 .

[0054] During the combustion of the flame, the excess oxygen flows to the tail of the combustion chamber with the sprayed atomized oil to provide oxygen for the flame in the tail, so that the atomized oil in the tail is burned more fully.

[0055] As Figure 6 shown and Figure 7 shown, a circular ring net 17 parallel to the flame guide column 2 is fixedly installed at the edge of the apron 12, and the flame can heat the circular ring net 17, and the oil droplets sprayed on the circular ring net 17 can be quickly evaporated.

[0056] When the flame burns, the oil droplets will fall on the circular ring net 17, and the flame will pass through the circular ring net 17. The temperature of the circular ring net 17 is higher than that of the flame guide column 2, and the evaporation effect of the oil droplets is better, which can further improve the combustion effect of the atomized oil.

[0057] For the method of directly exchanging heat between the flame and the side wall of the heat exchanger, the temperature of the flame can also be increased by increasing the pressure of the combustion chamber, thereby improving the heating efficiency of the heat exchanger. As Figure 9 shown, a pressure valve is fixedly installed on the chimney 7, the opening pressure of the pressure valve is greater than the external air pressure, the opening pressure of the pressure valve is greater than the external air pressure, and the oil injection pressure of the oil injection nozzle is greater than the opening pressure of the pressure valve, so that the oil injection nozzle can spray atomized oil. Under high pressure conditions, the rate of chemical reaction increases, the temperature of the flame increases, and the increase in pressure also enhances the complex reaction, thereby increasing the temperature.

[0058] Under the same environment, the combustion temperature of the flame is studied at 0.1 MPa, 0.5 MPa, 1.0 MPa, 2.0 MPa, 3.0 MPa, and 4.0 MPa, respectively.

[0059] The specific values are shown in the following table:

[0060]

[0061]

[0062] Combining Figure 10 , through analysis, under the pressure of 0.1-0.5 MPa, the temperature of the flame increases rapidly with the increase of the pressure, because in this pressure range, the chemical reaction increases rapidly with the increase of the pressure, thereby producing a relatively large temperature change. In the pressure range of 0.5 to 2.0 MPa, the increase in pressure enhances the complex reaction and increases the radiation loss, and the temperature increasing speed of the flame slows down. With the continuous increase of the pressure, the highest temperature continues to increase, and after exceeding 3.0 MPa, the temperature of the flame begins to decrease.

[0063] Therefore, the opening pressure of the pressure valve is selected to be 0.1-0.5 MPa, and in this pressure range, the temperature of the flame increases the most. While increasing the temperature, it can also better provide a higher temperature to the heat exchanger.

[0064] In this embodiment, for example, 0.5 MPa is preferred,

[0065] As shown in Figure 11 The pressure valve comprises a housing 18 and a support frame 22, the inner bottom of the housing 18 is provided with an inwardly protruding convex ring, the convex ring has a diameter smaller than that of the upper part of the housing. The support frame 22 is fixedly installed in the interior of the housing 18, the support frame 22 is a cross-shaped intersecting structure, a support ring 23 is fixedly installed at the intersection of the support frame 22, a support column 21 is slidingly installed in the interior of the support ring 23, and a piston 19 is fixedly installed at the bottom of the support column 21. A spring 20 is installed between the support frame 22 and the piston 19, the spring 20 is located outside the support column 21 and provides elastic force to the piston 19, the bottom of the piston 19 is attached to the convex ring of the housing 18 and is pressed together with the convex ring to form a seal, and the pressure P of the pressure valve is mainly provided by the spring 20 and the external air pressure, and the pressure P provided by the two is 0.5 MPa.

[0066] When the air pressure in the combustion chamber is greater than the pressure P, the piston 19 moves upward to open, and when the air pressure in the combustion chamber is less than the pressure P, the piston is sealed against the convex ring, so that the combustion chamber forms a relatively high pressure environment, thereby generating a relatively high temperature.

[0067] Correspondingly, in the case of setting the pressure valve, only one horizontal pipe 15 is provided, and the horizontal pipe 15 is connected with a high-pressure chamber 24 through a pipeline, a high-pressure air pump is installed on the high-pressure chamber 24, the high-pressure air pump provides air for the high-pressure chamber 24, and a one-way valve is installed between the high-pressure chamber 24 and the horizontal pipe 15, during combustion, the gas in the high-pressure chamber 24 can enter the combustion chamber to supplement air for the flame. The one-way valve can prevent the waste gas in the combustion chamber from flowing back to the high-pressure chamber 24. The high-pressure chamber 24 can provide air for the combustion of atomized oil.

[0068] The pressure range of the high-pressure chamber is 0.1-0.5 MPa, and the maximum pressure is the same as the opening pressure of the pressure valve, which is 0.5 MPa. When the opening pressure of the pressure valve is the same as that of the high-pressure chamber 24, the pressure in the combustion chamber can be kept at 0.5 MPa.

[0069] Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A combustion system for a high altitude oxygen enrichment fan heater, characterized by: The plateau oxygen heating fan comprises a box structure composed of a lower shell (1) and an upper shell (6), air inlet pipes (10) and air outlet pipes (4) are respectively arranged on both sides of the box and are communicated with the inner cavity of the box, the inner part of the box is divided into three compartments, i.e., a combustion engine compartment, a heat exchanger compartment and a centrifugal fan compartment; a combustion engine (11) is fixedly arranged in the combustion engine compartment, a heat exchanger (25) is arranged in the heat exchanger compartment, the combustion engine (11) is connected with the heat exchanger (25) and heats the heat exchanger (25), a centrifugal fan (3) is fixedly arranged in the centrifugal fan compartment, the air outlet of the centrifugal fan (3) is communicated with the heat exchanger compartment and is used for sending air to the heat exchanger compartment, the air inlet pipe (10) is communicated with the centrifugal fan compartment, the air outlet pipe (4) is communicated with the heat exchanger compartment, and air can be heated when passing through the heat exchanger compartment; An oxygen generating module (5) is further arranged in the box, the oxygen generating module (5) is communicated with the air inlet pipe (10) and is used for increasing the oxygen content in air; The combustion engine (11) is a light oil combustion engine, the nozzle of the light oil combustion engine is arranged together with the heat exchanger and extends into the inside of the heat exchanger, the inside of the heat exchanger is a combustion chamber, a chimney (7) communicated with the combustion chamber is further arranged on the heat exchanger, the flame of the combustion engine (11) can burn in the inside of the heat exchanger, the side wall of the heat exchanger is heated, and the waste gas generated by combustion can be discharged through the chimney; A flame guide column (2) is fixedly arranged in the inside of the combustion chamber, the nozzle of the combustion engine (11) is on the same axis as the flame guide column (2), the atomized oil sprayed by the combustion engine (11) flows to the side wall of the heat exchanger under the action of the flame guide column (2), and the flame generated by the combustion of the atomized oil directly heats the side wall; The flame guide column (2) is in a wine bottle-like structure, the front end of the flame guide column (2) is a ball-shaped flow guide head (14), and the flow guide head (14) and the flame guide column (2) are connected through a conical slope ring (13); A skirt plate (12) is fixedly arranged along the tangential direction of the edge of the flow guide head (14) and the extension direction of the slope ring (13), and the atomized oil sprayed from the nozzle can fly outward along the skirt plate (12).

2. The combustion system of claim 1, wherein: The rear end of the flame guide column (2) is further fixedly arranged with an air inlet pipe (9), the air inlet pipe (9) extends into the inside of the chimney (7) and is coaxially arranged with the chimney (7); The top of the air inlet pipe (9) is in a sealing structure, a horizontal pipe (15) is fixedly arranged at the upper end of the air inlet pipe (9), one end of the horizontal pipe (15) extends from the inside of the chimney (7) to the outside, and the horizontal pipe (15) is lower than the position of the top of the chimney (7), A plurality of air holes (16) are arranged on the flame guide column (2) below the skirt plate (12), air can enter the combustion chamber through the air inlet pipe (9) during the combustion of the atomized oil, and the waste gas is discharged from the chimney (7).

3. The combustion system of claim 2, wherein: The edge of the skirt plate (12) is fixedly arranged with a circular ring net (17) parallel to the flame guide column (2), the flame can heat the circular ring net (17), and the oil drops sprayed on the circular ring net (17) can be quickly evaporated.

4. The combustion system of claim 2, wherein: The chimney (7) is fixedly provided with a pressure valve, the opening pressure of the pressure valve is greater than the external air pressure, so that the inside of the combustion chamber forms high pressure, and the flame combustion temperature increases under high pressure.

5. The combustion system of claim 2, wherein: The horizontal pipe (15) is connected with a high pressure chamber (24) through a pipeline, the high pressure chamber (24) is provided with a high pressure air pump, and a one-way valve is arranged between the high pressure chamber (24) and the horizontal pipe (15).

6. The combustion system of claim 4, wherein: The pressure valve comprises a shell (18), a support frame (22) is fixedly arranged in the shell (18), a piston (19) is arranged in the shell (18), a support column (21) is fixedly arranged at the upper end of the piston (19), the support column (21) is slidingly arranged on the support frame (22), a spring (20) is arranged between the support frame (22) and the piston (19), and the spring (20) is located outside the support column (21) and provides elastic force to the piston (19).

7. The combustion system of claim 5, wherein: The outside of the chimney (7) is threadedly provided with an adjusting cylinder (8), the adjusting cylinder (8) is flush with the horizontal pipe (15), the adjusting cylinder (8) can block the opening of the horizontal pipe (15), and the size of the opening of the horizontal pipe (15) is adjusted.

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