CN216431704U

CN216431704U - Combustion device for blue flame combustion

Info

Publication number: CN216431704U
Application number: CN202122483730.XU
Authority: CN
Inventors: 叶小勇
Original assignee: Cixi City Heng Jin Electron Co ltd
Current assignee: Cixi City Heng Jin Electron Co ltd
Priority date: 2021-10-15
Filing date: 2021-10-15
Publication date: 2022-05-03
Anticipated expiration: 2031-10-15

Abstract

The utility model discloses a burner of blue flame burning, a serial communication port, burner include centrifugal combustion fan, wind channel subassembly, electric heater, flame stabilizing disc subassembly, big combustion barrel, throat shape combustion chamber, compressed air cup, current-limiting ring, high pressure glib talker, combustion barrel back plate, combustion barrel front bezel, combustion face guard, heat-proof bucket, installing support, take wire ignition needle, flame stabilizing disc subassembly include flame stabilizing disc, guide vane, heater fixed column, backward flow window, big combustion chamber subassembly by big combustion barrel, combustion barrel back plate, combustion barrel front bezel, the combustion face guard is constituteed, the wind channel subassembly in be equipped with photoelectric flame detector. The double combustion chambers designed by the invention form heat flow circulation heating by utilizing the relation of positive pressure and negative pressure, so that fuel oil is gasified and combusted, blue flame is generated, the fuel oil is fully combusted, the emission is reduced, the energy consumption is reduced, and the heat conversion efficiency is improved.

Description

Combustion device for blue flame combustion

Technical Field

The utility model belongs to the technical field of the heating articles for use technique and specifically relates to a burner of blue flame burning is related to.

Background

The existing combustion system adopts a single combustion chamber structure, a fan accelerates oxygen supply and assists combustion, an oil nozzle atomizes, an ignition system ignites, oil mist burns in the combustion chamber, and a heat reflux structure and a fuel heater are omitted. The fuel oil is atomized through a low-pressure or high-pressure nozzle, but is also fine granular oil mist, the oil mist is combusted in a combustion chamber without a thermal backflow combustion cavity, because combustion-supporting cold air is blown in, the high and low temperature areas in the combustion chamber are obvious, and the oil mist cannot be normally gasified, so that the combustion flame is red or faint yellow, the waste gas emission is high, the environmental protection is poor, and meanwhile, the combustion of the red or faint yellow flame is insufficient, so that the energy consumption is high, and the heat conversion rate is low.

Disclosure of Invention

The utility model relates to an overcome the exhaust emission of current combustion system structure height, the energy consumption is high, and the heat conversion rate is low, and the air that the required oxygen of burning produced through combustion fan does not have hot reflux structure and fuel heater scheduling problem. The utility model provides a combustion device which has the advantages of sufficient combustion, low exhaust emission, low energy consumption and high heat conversion rate.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a combustion device for burning blue flame comprises a centrifugal combustion fan, an air duct assembly, an external oil supply interface, an electric heater, a flame stabilizing disc assembly, a large combustion barrel, a necking combustion chamber, a compressed air cup, a current limiting ring, a high-pressure oil nozzle, a combustion barrel rear disc, a combustion barrel front disc, a combustion mask, a heat insulation barrel, a mounting bracket and an ignition needle with a lead, wherein the flame stabilizing disc assembly comprises a flame stabilizing disc, an air guide sheet, a heater fixing column and a backflow window; the front end of the centrifugal combustion-supporting fan is provided with an air duct assembly, the barrel wall of the air duct assembly is provided with a photoelectric flame detector fixing port, an ignition needle lead port, an electric heater power supply hole and an oil pipe through hole, and the air duct assembly is used as an air supply pipeline of the centrifugal combustion-supporting fan and fixes the centrifugal combustion-supporting fan; the high-pressure oil nozzle is arranged at the front end of the electric heater, the electric heater is fixed on the flame holder component, and an electrified lead of the electric heater penetrates out of the air duct component and is connected with an external control device; the ignition needle with the lead is arranged on an ignition needle fixing hole arranged on a flame stabilizing disc of the flame stabilizing disc assembly, the two ignition needles are arranged on the side surface of the front end of the high-pressure oil nozzle and at the outer end of the compression fan cover cup, and the lead on the ignition needle with the lead penetrates out of the air duct assembly and is externally connected with an igniter for use; the heat insulation barrel is fixed on the outer surface of the large combustion barrel through a mounting bracket.

Preferably, the input end of the electric heater is provided with an external oil supply interface, one end of the electric heater is arranged in the air duct assembly, and the other end of the electric heater extends out of the wall surface of the air duct assembly and is externally connected with an oil supply system; the high-pressure oil nozzle is assembled at the front end of the electric heater. The input fuel oil is heated at the high temperature of 120 ℃ through 100-.

Preferably, the flame stabilizing disc assembly comprises a flame stabilizing disc, air guide plates, a heater fixing column and a backflow window, wherein an arc-shaped fin is arranged at the center of the flame stabilizing disc, an ignition needle fixing port is formed in the plane of the flame stabilizing disc, the heater fixing column is welded at the center of the back face of the arc-shaped fin of the flame stabilizing disc, the heater fixing column is provided with four grooves with 90-degree angles, the four air guide plates are welded on the four grooves, the heater fixing column is fixed with the electric heater, the backflow window is welded at the center of the flame stabilizing disc, the backflow window is in the shape of a cylinder and is coplanar with the arc-shaped fin and centered in the center, four windows are arranged on the wall surface of the backflow window, and two fixed current-limiting ring-shaped holes are formed in the wall surface of the backflow window; the backflow window center is equipped with a compressed air cup, and is concentric with high-pressure glib talker, the compressed air cup be the throat turriform, the turriform top is equipped with the through-hole, the compressed air cup top surface exceeds high-pressure glib talker face, the current-limiting circle installation fix and circle in steady flame dish subassembly backflow window. The flow-limiting ring can movably adjust the size of heat flow entering the backflow window.

Preferably, the combustion device adopts double combustion chambers, and comprises a first combustion chamber and a second combustion chamber, wherein the first combustion chamber is a necking-shaped combustion chamber, the second combustion chamber consists of a large combustion barrel, a combustion barrel rear disc, a combustion barrel front disc and a combustion mask, the necking-shaped combustion chamber is provided with a large cylinder and a small cylinder, the middle of the large cylinder and the small cylinder is butted by a trapezoidal cylinder to form the necking-shaped combustion chamber, the middle of the small cylinder is provided with a high-pressure oil nozzle atomizing area, the large combustion barrel is internally provided with a combustion barrel front disc which is positioned at the front end of combustion flame of the necking-shaped combustion chamber, the combustion barrel front disc is a disc, the center of the combustion barrel front disc is provided with a large hole, and the peripheral wall surfaces of the large hole have a flame-blocking backflow function; the combustion face guard is arranged at the front end of the middle outlet of the large combustion barrel, the combustion face guard is tower-shaped, four fixing claws are arranged on the edge of the combustion face guard, holes are formed in the fixing claws and are fixed with the wall surface of the large combustion barrel, four heat flow outlet openings are arranged between the four fixing claws and the tower-shaped surface, and heat flows in the first combustion chamber and the second combustion chamber are discharged from the openings and are positioned at the outlet end of the large combustion barrel. The tower-shaped surface of the combustion mask is heated and burned due to heat flow to play a role in heat radiation.

The scheme firstly adopts a high-pressure atomizing oil nozzle and an oil pump, the input end of the oil nozzle is improved to increase a fuel preheating electric heater device, the early-stage oil temperature is increased to 120 ℃, the oil speed is accelerated, the oil is sprayed out through the high-pressure oil nozzle, the atomized particles are finer, the oil mist is ignited and combusted through an ignition device, meanwhile, an independent centrifugal oxygen-assisting fan is designed, the wind coming out of the fan uniformly rotates the wind speed through an arc-shaped wing piece of a flame stabilizing disc, and then passes through a compressed air cup to accelerate the oxygen supply wind, the combustion mixing ratio of the oil mist and the oxygen supply wind is more ideal, and the combustion efficiency is greatly improved; the combustion chamber is designed with two layers of combustion chambers, the first layer of combustion chamber is a combustion chamber with a necking shape, fuel oil is combusted in the combustion chamber to spray flame, the flame is sent to the second layer of large combustion chamber, the second large combustion chamber is designed with a middle large round hole and a front plate of a combustion barrel with a flame blocking wall surface, the flame can be folded from the flame blocking wall surface and returned to the inside of the large combustion chamber, the heat of the combustion chamber with the necking shape is circulated from the large combustion chamber to the head of the oil nozzle to spray oil mist by utilizing the principle that the wind coming out of the fan brings negative pressure through high-speed positive pressure of a compression fan cover cup, and a heat reflux window is designed at the position to secondarily heat the oil mist, so that the oil mist is gasified and changed, and is fully combusted in the first layer of combustion chamber with the necking shape, and blue flame with higher temperature than red or faint yellow is formed; the large combustion chamber outlet is provided with a combustion mask, the design tower-shaped surface of the combustion mask is heated and burned due to heat flow to start to the action of heat radiation, four openings are designed in front of the combustion mask and the combustion chamber, and the heat flow generated by combustion is discharged from the openings; the outer surface of the large combustion chamber is provided with a heat insulation barrel which is designed in a circular shape, and the high temperature on the wall surface of the heat insulation combustion barrel is directly transmitted to the outer shell and has a heat dissipation function;

oxygen is blown into the combustion chamber by the centrifugal oxygen-assisted fan, so that the oxygen in the combustion chamber is increased, and the fuel oil is fully combusted;

when the scheme works, fuel oil is introduced into a combustion system through an external oil supply system, the fuel oil is ignited by an external ignition system, and the whole combustion process is monitored by an external control system;

the fuel oil enters the combustion device under the action of the oil supply device, atomized fuel oil is sprayed out of an oil nozzle in the combustion device, and the fuel oil is ignited by the ignition device; if the combustion device is used for stopping the oil supply device under the condition that the combustion flame is abnormal or the flame is extinguished or the ambient temperature reaches the set temperature, the external control device stops the oil supply device.

Therefore, the utility model discloses following beneficial effect has: the combustion device is provided with a centrifugal oxygen-assisting fan to increase oxygen in the combustion chamber, the rear end of the high-pressure oil nozzle is provided with an electric heater to increase the temperature of fuel oil, so that fuel oil atomization is facilitated, the designed double combustion chambers form heat flow circulation heating by utilizing the relation of positive pressure and negative pressure, the purpose of fuel oil gasification combustion is achieved, blue flame is generated, the fuel oil is fully combusted, emission is reduced, energy consumption is reduced, and the heat conversion efficiency is improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the explosion structure of the present invention.

Fig. 3 is a schematic view of the fuel combustion and heat dissipation principle of the present invention.

Fig. 4 is a schematic sectional structure of the present invention.

Detailed Description

The invention will be further described with reference to the accompanying drawings, as shown in fig. 1 to 4:

a combustion device for burning blue flame comprises a centrifugal combustion fan 1, an air duct assembly 2, an external oil supply connector 3, an electric heater 4, a flame stabilizing disc assembly 7, a large combustion barrel 13, a throat-shaped combustion chamber 10, a compressed air cup 9, a flow limiting ring 8, a high-pressure oil nozzle 5, a combustion barrel rear disc 11, a combustion barrel front disc 14, a combustion mask 15, a heat insulation barrel 16, a mounting bracket 12 and a needle 6 with a lead, wherein the ignition disc assembly 7 comprises a flame stabilizing disc 7-2, an air guide sheet 7-3, a heater fixing column 7-4 and a backflow window 7-1, the large combustion barrel 13, the combustion barrel rear disc 11 and the combustion barrel front disc 14 form the large combustion chamber assembly by the combustion mask 15, and a photoelectric flame detector is arranged in the air duct assembly 2; the front end of the centrifugal combustion-supporting fan 1 is provided with an air duct component 2, the barrel wall of the air duct component 2 is provided with a photoelectric flame detector fixing port, an ignition needle lead port, an electric heater power supply hole and an oil pipe through hole, and the air duct component 2 is used as an air supply pipeline of the centrifugal combustion-supporting fan 1 and fixes the centrifugal combustion-supporting fan 2; the high-pressure oil nozzle 5 is arranged at the front end of the electric heater 4, the electric heater 4 is fixed on the flame stabilizing disc assembly 7, and a power-on lead of the electric heater 4 penetrates out of the air duct assembly 2 and is connected with an external control device; the ignition needles 6 with the wires are arranged on ignition needle fixing holes arranged on a flame stabilizing disc 7-2 of a flame stabilizing disc assembly 7, the two ignition needles 6 are arranged on the side surface of the front end of the high-pressure oil nozzle 5 and at the outer end of the compressed air cup 9, and the wires on the ignition needles 6 with the wires penetrate out of the air duct assembly 2 and are externally connected with an igniter for use; the heat insulation barrel 16 is fixed on the outer surface of the large combustion barrel 13 through a mounting bracket 12;

the centrifugal combustion fan 1 is arranged on the air duct component 2, the air duct component 2 is arranged at the rear end of the flame stabilizing disc component 7 and is positioned on the same surface as the heater fixing column 7-4 on the flame stabilizing disc component 7, the compressed air cup 9 is arranged on the flame stabilizing disc 7-2 in the flame stabilizing disc component 7, is positioned on the same surface as the arc-shaped fin on the flame stabilizing disc 7-2 and is also positioned at the center of the backflow window 7-1 on the flame stabilizing disc component 7, the flow limiting ring 8 is arranged in the backflow window 7-1 on the flame stabilizing disc component 7, and the backflow window 7-1, the flow limiting ring 8 and the compressed air cup 9 are positioned on the same center; the external oil supply interface 3 is arranged at the input end of the electric heater 4, the high-pressure oil nozzle 5 is arranged at the output end of the electric heater 4 to form an oil path assembly for oil supply input end, fuel oil heating and fuel oil atomization, the electric heater 4 is arranged on a heater fixing column 7-4 in the flame stabilizing disc component 7, the high-pressure oil nozzle 5 is arranged at the center of the compressed air cup 9 and is lower than the top end surface of the compressed air cup 9, the external oil supply interface 3 is connected with threads on the outer surface of the air duct component 2, the electric heater 4 is arranged in the air duct component 2, and a lead penetrates out of the air duct component 2; the necking combustion chamber 10 is arranged in a backflow window 7-1 on the flame holder component 7, and the small cylinder is arranged in a hole position of the backflow window 7-1;

the combustion device adopts double combustion chambers, and comprises a first combustion chamber and a second combustion chamber, wherein the first combustion chamber is a necking-shaped combustion chamber 10, the second combustion chamber consists of a large combustion barrel 13, a combustion barrel rear disk 11, a combustion barrel front disk 14 and a combustion face mask 15, the necking-shaped combustion chamber 10 is provided with a large cylinder and a small cylinder, the middles of the large cylinder and the small cylinder are butted by a trapezoidal cylinder to form the necking-shaped combustion chamber 10, the middle of the small cylinder is a high-pressure oil nozzle atomization area, the large combustion barrel 13 is internally provided with the combustion barrel front disk 14 which is positioned at the front end of combustion flame of the necking-shaped combustion chamber 10, the combustion barrel front disk 14 is a circular disk, the center is provided with large holes, and the peripheral wall surfaces of the large holes are used for blocking flame backflow; a combustion mask 15 is arranged at the front end of an outlet in the large combustion barrel 13, the combustion mask 15 is tower-shaped, four fixing claws are arranged on the side of the combustion mask, holes are formed in the fixing claws and are fixed with the wall surface of the large combustion barrel 13, four heat flow outlet openings are arranged between the four fixing claws and the tower-shaped surface, and heat flows in the first combustion chamber and the second combustion chamber are discharged from the openings and are positioned at the outlet end of the large combustion barrel 13;

the combustion barrel rear disc 11 is arranged at the tail part of the large combustion barrel 13, the combustion barrel front disc 14 is arranged inside the large combustion barrel 13, the combustion mask 15 is arranged at the outlet end of the large combustion barrel 13, and the mounting bracket 12 is welded on the outer surface of the large combustion barrel 13 to form a large combustion chamber;

the heat insulation barrel 16 is arranged on the outer mounting bracket 12 of the large combustion chamber;

the flame stabilizing disc component 7 comprises a flame stabilizing disc 7-2, air guide sheets 7-3, a heater fixing column 7-4 and a backflow window 7-1, wherein an arc-shaped fin is arranged at the center of the flame stabilizing disc 7-2, an ignition needle fixing port is arranged on the plane of the flame stabilizing disc 7-2, the heater fixing column 7-4 is welded at the center of the back face of the arc-shaped fin of the flame stabilizing disc 7-2, the heater fixing column 7-4 is provided with four grooves with 90-degree angles, the four air guide sheets 7-3 are welded on the four grooves, the heater fixing column 7-4 is fixed with the electric heater 4, the backflow window 7-1 is welded at the center of the flame stabilizing disc 7-2, the backflow window 7-1 is coplanar with the arc-shaped fin and centered at the center, the backflow window 7-1 is in a cylindrical shape, and four windows are arranged on the wall face of the backflow window 7-1, two 8-shaped holes for fixing the current-limiting ring are arranged at the same time; a compressed air cup 9 is arranged at the center of the backflow window 7-1 and is concentric with the high-pressure oil nozzle 5, the compressed air cup 9 is in a reducing tower shape, a through hole is formed in the top end of the tower shape, the topmost surface of the compressed air cup 9 is higher than the surface of the high-pressure oil nozzle 5, and the flow limiting ring 8 is fixedly arranged on the inner ring of the backflow window 7-1 of the flame stabilizing disc assembly 7;

the centrifugal combustion-supporting fan 1, the air duct component 2, the electric heater 4, the external oil supply interface 3, the flame stabilizing disc component 7, the necking-shaped combustion chamber 10, the compressed air cup 9, the flow limiting ring 8, the high-pressure oil nozzle 5 and the ignition needle assembly with the lead are fixed in the center of a combustion barrel rear disc 11 of the large combustion chamber through a flame stabilizing disc 7-2-shaped mounting hole in the flame stabilizing disc component 7, the centrifugal combustion-supporting fan 1 and the air duct component 2 are arranged outside the large combustion chamber, the necking-shaped combustion chamber 10 is arranged inside the large combustion chamber, the outlet end of the necking-shaped combustion chamber 10 is arranged behind a combustion barrel front disc 14, and the necking-shaped combustion chamber 10 and the large combustion chamber are arranged on the same central line.

The specific implementation process is that firstly, a high-pressure oil nozzle 5 and an oil pump are adopted to atomize fuel oil, a fuel oil preheating electric heater 4 device is added at the input end of the high-pressure oil nozzle 5, the early-stage oil temperature is improved to 100-plus-oil 120 ℃, the oil speed is accelerated, the atomized particles are finer after being sprayed out through the high-pressure oil nozzle 5, the oil mist is ignited and combusted through an ignition device, meanwhile, an independent centrifugal combustion-supporting fan 1 is designed, the air from the centrifugal combustion-supporting fan 1 uniformly rotates through an arc-shaped fin of a flame stabilizing disc 7-2, and then the air supply is accelerated through a compressed air cup 9, the combustion mixing ratio of the oil mist and the air supply is more ideal, and the combustion efficiency is greatly improved;

the combustion chamber is designed with two layers of combustion chambers, the first layer of combustion chamber is a combustion chamber 10 with a necking shape, fuel oil is combusted in the combustion chamber to spray flame, the flame is sent to the second layer of large combustion chamber, the second large combustion chamber is designed with a middle large round hole and a front plate of a combustion barrel with a flame blocking wall surface, the flame can be folded from the flame blocking wall surface and returns to the interior of the large combustion chamber, the heat of the combustion chamber 10 with the necking shape is circulated from the large combustion chamber to the head of oil mist sprayed out by the high-pressure oil nozzle 5 by utilizing the principle that air from the front centrifugal combustion-supporting fan 1 brings negative pressure through high-speed positive pressure of a compression air cup 9, a heat backflow window 7-1 is designed at the position to ensure that the oil mist is heated for the second time and is gasified and changed, and the combustion is fully carried out in the first layer of combustion chamber 10 with the necking shape to form blue flame with temperature higher than red or faint yellow; the large combustion chamber outlet is provided with a combustion face shield 15, the combustion face shield 15 is designed into a tower-shaped surface which is heated by heat flow and started to perform the heat radiation function, four openings are designed between the combustion face shield 15 and the large combustion chamber, and the heat flow generated by combustion is discharged from the openings; the outer surface of the large combustion chamber is provided with a heat insulation barrel 16, the heat insulation barrel 16 is designed in a circular shape, the high temperature on the wall surface of the heat insulation combustion barrel is directly transmitted to the outer shell, and meanwhile, the heat insulation combustion barrel has a heat dissipation effect;

oxygen is blown into the combustion chamber by the centrifugal oxygen-assisting fan 1, so that the oxygen in the combustion chamber is increased, and the fuel oil is fully combusted;

introducing fuel oil into the combustion device through an external oil supply system, igniting the fuel oil by an external ignition system, and monitoring the whole combustion process by an external control system;

the fuel oil enters the combustion device under the action of the oil supply device, atomized fuel oil is sprayed out from a high-pressure fuel nozzle 5 in the combustion device, and the fuel oil is ignited by the ignition device; if the combustion device is used for stopping the oil supply device under the condition that the combustion flame is abnormal or the flame is extinguished or the ambient temperature reaches the set temperature, the external control device stops the oil supply device.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims

1. A combustion device for burning blue flame is characterized by comprising a centrifugal combustion-supporting fan, an air duct assembly, an external oil supply interface, an electric heater, a flame stabilizing disc assembly, a large combustion barrel, a necking-shaped combustion chamber, a compressed air cup, a current-limiting ring, a high-pressure oil nozzle, a combustion barrel rear disc, a combustion barrel front disc, a combustion mask, a heat insulation barrel, a mounting bracket and an ignition needle with a lead, wherein the flame stabilizing disc assembly comprises a flame stabilizing disc, an air guide sheet, a heater fixing column and a backflow window; the front end of the centrifugal combustion-supporting fan is provided with an air duct assembly, the barrel wall of the air duct assembly is provided with a photoelectric flame detector fixing port, an ignition needle lead port, an electric heater power supply hole and an oil pipe through hole, and the air duct assembly is used as an air supply pipeline of the centrifugal combustion-supporting fan and fixes the centrifugal combustion-supporting fan; the high-pressure oil nozzle is arranged at the front end of the electric heater, the electric heater is fixed on the flame holder component, and an electrified lead of the electric heater penetrates out of the air duct component and is connected with an external control device; the ignition needle with the lead is arranged on an ignition needle fixing hole arranged on a flame stabilizing disc of the flame stabilizing disc assembly, the two ignition needles are arranged on the side surface of the front end of the high-pressure oil nozzle and at the outer end of the compression fan cover cup, and the lead on the ignition needle with the lead penetrates out of the air duct assembly and is externally connected with an igniter for use; the heat insulation barrel is fixed on the outer surface of the large combustion barrel through a mounting bracket.

2. The combustion device with blue flame combustion as claimed in claim 1, wherein the input end of the electric heater is provided with an external oil supply interface, one end of the electric heater is arranged in the air duct assembly, and the other end of the electric heater extends out of the wall surface of the air duct assembly and is externally connected with an oil supply system; the high-pressure oil nozzle is assembled at the front end of the electric heater.

3. The combustion device for burning blue flame according to claim 1, wherein the flame stabilizing disc assembly comprises a flame stabilizing disc, an air guide plate, a heater fixing column and a backflow window, an arc-shaped fin is arranged at the center of the flame stabilizing disc, an ignition needle fixing port is arranged on the plane of the flame stabilizing disc, the heater fixing column is welded at the center of the back face of the arc-shaped fin of the flame stabilizing disc, the heater fixing column is provided with four 90-degree grooves, the four air guide plates are welded on the four grooves, the heater fixing column is fixed with the electric heater, the backflow window is welded at the center of the flame stabilizing disc, the backflow window is coplanar with the arc-shaped fin and centered at the center, the backflow window is cylindrical, four windows are arranged on the wall of the backflow window, and two fixed flow limiting coil strip-shaped holes are formed in the backflow window; the backflow window center is equipped with a compressed air cup, and is concentric with high-pressure glib talker, the compressed air cup be the throat turriform, the turriform top is equipped with the through-hole, the compressed air cup top surface exceeds high-pressure glib talker face, the current-limiting circle installation fix and circle in steady flame dish subassembly backflow window.

4. The combustion device for burning blue flame as claimed in claim 1, wherein the combustion device adopts double combustion chambers, and comprises a first combustion chamber and a second combustion chamber, the first combustion chamber is a necking-shaped combustion chamber, the second combustion chamber is composed of a large combustion barrel, a combustion barrel rear disc, a combustion barrel front disc and a combustion mask, the necking-shaped combustion chamber is provided with a large cylinder and a small cylinder, the middle of the large cylinder and the small cylinder is butted by a trapezoidal cylinder to form the necking-shaped combustion chamber, the middle of the small cylinder is provided with a high-pressure oil nozzle atomization area, the large combustion barrel is internally provided with a combustion barrel front disc which is positioned at the front end of the combustion flame of the necking-shaped combustion chamber, the combustion barrel front disc is a disc, the center of the combustion barrel is provided with large holes, and the peripheral wall surfaces of the large holes are used for blocking the backflow of flame; the front end of the outlet of the large combustion barrel is provided with a combustion face mask which is tower-shaped, the edge of the combustion face mask is provided with four fixed claws, the fixed claws are provided with holes and fixed with the wall surface of the large combustion barrel, four heat flow outlet openings are arranged between the four fixed claws and the tower-shaped surface, and heat flows in the first combustion chamber and the second combustion chamber are discharged from the openings and positioned at the outlet end of the large combustion barrel.