Nozzle atomizer and furnace end device

Abstract

The invention discloses a nozzle atomizer and a furnace end device. The nozzle atomizer comprises a nozzle, a base and an oil inlet pipe which are sequentially connected. A cavity communicated with the atomization nozzle is formed between the lower part of the spray head and the upper part of the base; a mounting through hole and a plurality of first air inlet holes are formed in the bottom wall of the base, and the first air inlet holes are communicated with the cavity; one end of the oil inlet pipe is connected into the mounting through hole and communicates with an oil spraying opening, and the oil spraying opening is located in the position, close to the atomization spraying opening, in the cavity. The nozzle atomizer and the furnace end device are not prone to blockage, long in service life and low in cost.

Description

Technical Field

[0001] The invention relates to the field of combustion medium nozzles, and more particularly to a nozzle atomizer and a burner head device. Background Art

[0002] Oil and gas stoves are widely used in hotels, restaurants, families and company canteens, etc. The burner is a key component of oil and gas stoves. At present, the nozzles of burners on the market generally use high-pressure atomizing nozzles, which are equipped with multiple small-diameter spray holes. The fuel needs to be pressurized by a high-pressure electromagnetic oil pump and then transported to the nozzle, so that the fuel is sprayed through multiple spray holes to obtain atomized fuel, and then ignited and burned by an igniter.

[0003] However, during the combustion process, the nozzle contacts the combustion flame in the oil bowl. Due to the small diameter of the spray hole, the carbon deposits produced by the incompletely burned fuel are easy to adhere to the spray nozzle at high temperature, causing the spray nozzle to be blocked and unable to be used normally, thus affecting the service life. At the same time, in order to allow the fuel to have sufficient pressure to pass through the tiny spray hole, the high-pressure atomizing nozzle must be used in conjunction with a high-pressure electromagnetic oil pump, but the high-pressure electromagnetic oil pump needs to be controlled by an electronic controller, and after long-term operation, it is prone to failure and has high maintenance costs. Summary of the invention

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides a nozzle atomizer and a burner head device, which have the advantages of not being easily blocked and having a long service life, and have a simple structure and are easy to assemble, thereby effectively reducing costs.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a nozzle atomizer, comprising a nozzle, a base and an oil inlet pipe connected in sequence; an atomizing nozzle is provided at the upper part of the nozzle, and a cavity connected to the atomizing nozzle is formed between the lower part of the nozzle and the upper part of the base; a mounting through hole and a plurality of first air inlet holes are provided on the bottom wall of the base, and the first air inlet holes are connected to the cavity; one end of the oil inlet pipe is connected to the mounting through hole and is connected to the oil nozzle, and the oil nozzle is located in the cavity near the atomizing nozzle.

[0006] The nozzle atomizer provided by the technical solution can form a high-speed airflow when the airflow entering the cavity through the first air inlet hole passes through the atomizing nozzle due to the smaller channel diameter of the airflow when passing through the atomizing nozzle, and mixes with the fuel flowing out of the fuel nozzle to form an atomized mixed oil and gas, which is then directly sprayed out through the atomizing nozzle with a larger aperture. It is not easy to be blocked and has a long service life. It also has a simple structure and is easy to assemble, which can reduce maintenance work and reduce costs. In addition, the fuel flows directly to the fuel nozzle through the fuel inlet pipe, and the entire process can be achieved without high-pressure compression of the fuel. Therefore, the nozzle atomizer does not need to be used in conjunction with a high-pressure electromagnetic oil pump, and a mechanical handle oil valve can be used, which solves the problem of the high-pressure electromagnetic oil pump being easy to wear, thereby reducing the cost of the burner device.

[0007] In a preferred technical solution, the fuel injection port and the fuel inlet pipe are an integrally formed structure; the fuel inlet pipe includes the fuel injection port, the fuel inlet port, and a fuel inlet channel connecting the fuel injection port and the fuel inlet port, the aperture of the fuel injection port is smaller than the aperture of the fuel inlet port, and the aperture of the fuel injection port is smaller than the aperture of the atomizing nozzle. In this technical solution, the fuel injection port and the fuel inlet pipe are integrated, so the fuel inlet pipe is installed in the installation through hole and one end passes through the installation through hole to extend the fuel injection port into the cavity near the atomizing nozzle, which has a simple structure and is easy to install.

[0008] In a preferred technical solution, the fuel injection port is arranged on the base, and the fuel injection port is located above the mounting through hole; the aperture of the fuel injection port is smaller than the aperture of the mounting through hole, and the aperture of the fuel injection port is smaller than the inner diameter of the fuel inlet pipe, and one end of the fuel inlet pipe is connected to the mounting through hole by a thread, and the connection is more stable, so that the nozzle atomizer has better stability and sealing. In this technical solution, the fuel injection port is integrated on the base, so it is only necessary to connect the oil outlet end of the fuel inlet pipe to the mounting through hole, and the fuel will be directly sprayed out from the fuel injection port on the base.

[0009] In a preferred technical solution, the fuel injection port and the base are an integrally formed structure, or the fuel injection port is detachably connected to the base via a threaded structure, so as to facilitate replacement of fuel injection ports of different calibers.

[0010] Furthermore, the outer walls of the upper and lower ends of the oil inlet pipe are both provided with threads, the inner wall of the mounting through hole is provided with threads, and the upper end of the oil inlet pipe is connected to the mounting through hole via threads.

[0011] In a preferred technical solution, the bottom of the base is provided with an outwardly extending edge portion, and the edge portion is provided with a plurality of second air inlet holes, and the second air inlet holes are used to communicate with the inner cavity of the burner head device so that external air can enter the inner cavity of the burner head device through the second air inlet holes, thereby playing the role of replenishing air and assisting combustion for each combustion chamber inside the burner head device.

[0012] In a preferred technical solution, multiple first air inlet holes are evenly distributed around the mounting through hole, and the first air inlet holes are straight holes or spiral holes, which facilitate air to enter the cavity evenly to ensure the atomization effect; multiple second air inlet holes are evenly distributed circumferentially along the edge portion, and the second air inlet holes are straight holes or spiral holes, which can ensure uniform air intake into the inner cavity of the burner head device, thereby improving the combustion-supporting effect.

[0013] In a preferred technical solution, the edge portion is in the shape of an annular cone, a polygonal cone, an annular plate or a polygonal plate.

[0014] In a preferred technical solution, the bottom wall edge of the base is provided with an upwardly protruding annular mounting portion; the nozzle is sealed and connected in the annular mounting portion, and a cavity is formed between the conical surface of the bottom of the nozzle and the top surface of the bottom wall of the base. The bottom of the nozzle is provided with a conical surface, and the conical surface and the top surface of the bottom wall of the base form a cavity with an inner diameter that gradually decreases from bottom to top, so that the channel diameter of the airflow gradually decreases until a high-speed airflow is formed at the atomizing nozzle, thereby obtaining a better atomization effect.

[0015] In a preferred technical solution, the inner wall of the annular mounting portion is connected to the outer wall of the nozzle by threads, which has good sealing performance and is easy to assemble.

[0016] A stove head device, comprising an air inlet component, a shell, a first oil bowl, a second oil bowl, a bowl cover, a fire dividing wing, a fire gathering ring, an igniter, and a nozzle atomizer as in any of the above technical solutions; the bottom end of the shell is connected to the air inlet component, and the air inlet component has an air inlet channel; the first oil bowl is arranged inside the shell, the bottom of the first oil bowl is provided with a mixed oil and gas inlet, the first oil bowl is also provided with an air inlet hole, and the ignition needle of the igniter is located in the first oil bowl; the second oil bowl is arranged inside the first oil bowl, and the bottom of the second oil bowl is provided with a gear The second oil bowl has a conical convex portion and a first oil and gas hole, and the second oil and gas hole is provided on the side wall of the second oil bowl; the bowl cover is arranged on the top of the second oil bowl, and the bowl cover is provided with a third oil and gas hole; the fire dividing fin is arranged above the second oil bowl, and a plurality of fire dividing holes are provided on the side wall of the fire dividing fin; the fire gathering ring is arranged on the top of the first oil bowl and is located on the outside of the fire dividing fin, and the top of the fire gathering ring is higher than the top of the fire dividing fin; the base is arranged between the air inlet channel and the inner cavity of the shell, the atomizing nozzle is located in the mixed oil and gas inlet, and the oil inlet pipe extends downward from the bottom wall of the air inlet component. Specifically, when the burner head device is working, the atomizing nozzle sprays the atomized mixed oil and gas into the first oil bowl through the mixed oil and gas inlet, and the sprayed atomized mixed oil and gas hits the toothed conical protrusion at the bottom of the second oil bowl to achieve secondary atomization, and then ignites and burns through the igniter; while the atomized mixed oil and gas burns in the first oil bowl, the heat generated by the combustion heats the first oil bowl and the second oil bowl, and the atomized mixed oil and gas contacts the heated first oil bowl and the second oil bowl, which can quickly vaporize the liquid mixed oil and gas, thereby achieving the purpose of complete combustion.

[0017] The burner head device in the present technology can utilize the air injected by the air inlet component to achieve three-stage mixing, and then achieve three-stage combustion, so as to achieve the effect of complete combustion, energy saving, environmental protection and high safety; at the same time, by adopting the above-mentioned nozzle atomizer, the nozzle is not easy to be blocked and has a long service life; moreover, there is no need to use an electronic controller, a high-pressure electromagnetic oil pump and a heater, the stability is good, it is more energy-saving and environmentally friendly, and the maintenance cost can be reduced.

[0018] It can be seen from the above technical solution that, compared with the prior art, the beneficial effects of the present invention are:

[0019] The nozzle atomizer provided by the present invention can form a high-speed airflow when the airflow entering through the first air inlet hole passes through the atomizing nozzle due to the smaller channel diameter of the airflow when passing through the atomizing nozzle, and mix with the fuel flowing out of the fuel nozzle to form an atomized mixed oil and gas, which is then directly sprayed out through the atomizing nozzle with a larger aperture. The nozzle atomizer is not easy to be blocked and has a long service life. The nozzle atomizer has a simple structure and is easy to assemble, which can reduce maintenance work and reduce costs. In addition, the fuel flows directly to the fuel nozzle through the fuel inlet pipe, and the whole process can be achieved without high-pressure compression of the fuel. Therefore, the nozzle atomizer does not need to be used in conjunction with a high-pressure electromagnetic oil pump, and a mechanical handle oil valve can be used, which solves the problem of the high-pressure electromagnetic oil pump being easy to wear, thereby reducing maintenance costs.

[0020] A burner head device adopts the above-mentioned nozzle atomizer, which can realize sufficient atomization and three-stage combustion of fuel, thereby achieving the effect of complete combustion, energy saving and environmental protection; and the nozzle is not easy to be blocked, has a long service life and low maintenance cost.

[0021] In addition, other advantages of the present invention will be given in the following description, and some will become obvious from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 A cross-sectional view of the overall structure of a nozzle atomizer in one embodiment of the present invention;

[0024] Figure 2 A cross-sectional view of the exploded structure of a nozzle atomizer in one embodiment of the present invention;

[0025] Figure 3 A cross-sectional view of the overall structure of a nozzle atomizer in another embodiment of the present invention;

[0026] Figure 4 A schematic diagram of the structure of a nozzle atomizer in another embodiment of the present invention;

[0027] Figure 5 Another structural schematic diagram of a nozzle atomizer in yet another embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the exploded structure of a nozzle atomizer in another embodiment of the present invention;

[0029] Figure 7 A top view of a nozzle according to an embodiment of the present invention;

[0030] Figure 8 A top view of a base in one embodiment of the present invention;

[0031] Fig. 9 for Figure 8 Cross-section view at the middle AA position;

[0032] Fig.10 A top view of a base in another embodiment of the present invention;

[0033] Fig.11 for Fig.10 Cross-section view of the middle BB position;

[0034] Fig.12 A bottom view of a base in another embodiment of the present invention;

[0035] Fig.13 for Fig.12 Cross-section at the mid-CC location;

[0036] Fig.14 A cross-sectional view of a burner device in another embodiment of the present invention;

[0037] Explanation of the reference numerals: 10, nozzle atomizer; 11, nozzle; 110, atomizing nozzle; 12, base; 120, mounting through hole; 121, first air inlet hole; 122, second air inlet hole; 123, annular mounting portion; 13, oil inlet pipe; 131, oil nozzle; 132, oil inlet; 133, oil inlet channel; 20, burner head device; 21, air inlet component; 22, shell; 23, first oil bowl; 24, second oil bowl; 25, bowl cover; 26, fire dividing fins; 27, fire gathering ring; 28, igniter. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] In the description of the present invention, it should be understood that the terms "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0040] Reference Figure 1-14 A nozzle atomizer 10 and a furnace head device 20 according to an embodiment of the present invention are described.

[0041] In one embodiment, Figure 1-2 As shown, a nozzle atomizer 10 is applied to a furnace head device 20. The nozzle atomizer 10 includes a nozzle 11, a base 12 and an oil inlet pipe 13 which are connected in sequence.

[0042] like Figure 7 As shown, an atomizing nozzle 110 is provided at the upper portion of the nozzle 11, and a cavity connected to the atomizing nozzle 110 is formed between the lower portion of the nozzle 11 and the upper portion of the base 12; a mounting through hole 120 and a plurality of first air inlet holes 121 are provided on the bottom wall of the base 12, and the first air inlet holes 121 are connected to the cavity; an outwardly extending edge portion is provided at the bottom of the base 12, and a plurality of second air inlet holes 122 are provided at the edge portion, and the second air inlet holes 122 are used to communicate with the inner cavity of the burner device 20; one end of the oil inlet pipe 13 is connected to the mounting through hole 120 and is connected to an oil injection port 131, and the oil injection port 131 is located in the cavity near the atomizing nozzle 110, and is used to spray fuel.

[0043] The burner device 20 may be a burner of an oil or gas stove, and the nozzle atomizer 10 may be mounted at the bottom of the burner device 20. Specifically, the base 12 may be located between the inner cavity of the burner device 20 and the air inlet channel, the first air inlet hole 121 and the second air inlet hole 122 are respectively connected to the air inlet channel of the burner device 20, and the atomizing nozzle 110 is located at the mixed oil and gas inlet of the oil bowl in the inner cavity of the burner device 20, and the mixed atomized fuel is sprayed into the oil bowl for ignition and combustion; preferably, the oil inlet pipe 13 may adopt a straight pipe structure, the pressure required for oil inlet is small, and the structure is simple, which is easy to assemble.

[0044] The working principle of the nozzle atomizer 10 is as follows: the airflow flowing in through the first air inlet 121 enters the cavity formed between the nozzle 11 and the base 12. When flowing through the atomizing nozzle 110, the airflow caliber becomes smaller, the air is compressed, and an airflow difference is formed. The airflow is accelerated, and a high-speed airflow is formed at the atomizing nozzle 110, which is mixed with the fuel oil and gas flowing out of the oil injection port 131 to form an atomized mixed oil and gas. The atomizing nozzle 110 sprays the atomized mixed oil and gas into the combustion chamber of the burner device 20, and the atomized mixed oil and gas hits the toothed conical convex part of the oil bowl in the combustion chamber to achieve re-atomization, and then ignites and burns through the igniter, the atomization effect is better, and it helps to improve the combustion efficiency; at the same time, the second air inlet 122 is located outside the cavity and is not connected to the cavity. A part of the air entering the air inlet channel of the burner device 20 can enter the inner cavity of the burner device 20 through the multiple second air inlet holes 122, and is used by the combustion chamber inside the burner device 20, which plays a combustion-supporting effect.

[0045] In the nozzle atomizer 10, since the fuel does not need to be sprayed out through a fine spray hole, there is no need to apply high pressure to the fuel for compression. Therefore, in actual use, the burner device 20 using the nozzle atomizer 10 can use a mechanical handle oil valve to control the oil volume, and there is no need to install an electronic controller and a high-pressure electromagnetic oil pump, which can effectively reduce maintenance costs.

[0046] In the above embodiment, the nozzle atomizer 10 can form a high-speed airflow when the airflow entering through the first air inlet hole 121 passes through the atomizing nozzle 110 due to the smaller channel diameter of the airflow, and mixes with the fuel flowing out of the fuel injection port 131 to form an atomized mixed oil and gas, which is then directly sprayed out through the atomizing nozzle 110 with a larger aperture. It is not easy to be blocked and has a long service life. It also has a simple structure and is easy to assemble, which can reduce maintenance work and reduce costs. In addition, the fuel flows directly to the fuel injection port 131 through the fuel inlet pipe 13, and the entire process can be achieved without high-pressure compression of the fuel. Therefore, the nozzle atomizer 10 does not need to be used in conjunction with a high-pressure electromagnetic oil pump, and a mechanical handle oil valve can be used, which solves the problem of the high-pressure electromagnetic oil pump being easy to wear, thereby reducing maintenance costs.

[0047] In one embodiment, Figure 1-2 As shown, the fuel injection port 131 and the fuel inlet pipe 13 are an integrally formed structure; the fuel inlet pipe 13 is installed in the mounting through hole 120 and one end thereof passes through the mounting through hole 120 so that the fuel injection port 131 extends into the cavity near the atomizing nozzle 110, and the structure is simple and the installation is convenient. The fuel inlet pipe 13 includes the fuel injection port 131, the fuel inlet port 132, and the fuel inlet channel 133 connecting the fuel injection port 131 and the fuel inlet port 132, the aperture of the fuel injection port 131 is smaller than the aperture of the fuel inlet port 132, and the aperture of the fuel injection port 131 is smaller than the aperture of the atomizing nozzle 110.

[0048] Among them, the aperture of the fuel injection port 131 is 1 to 3 mm, and the aperture of the fuel inlet port 132 is 3 to 8 mm; the fuel inlet channel 133 has a first connecting section and a second connecting section, the first connecting section is connected to the fuel injection port 131, and the second connecting section is connected to the fuel inlet port 132, the inner diameter of the first connecting section is the same as the aperture of the fuel injection port 131, and the inner diameter of the second connecting section is the same as the aperture of the fuel inlet port 132.

[0049] In a specific implementation, the aperture of the oil injection port 131 may be 1 mm, 2 mm, 3 mm, etc., and the aperture of the oil inlet port 132 may be 3 mm, 5 mm, 8 mm, etc.

[0050] In another embodiment, Figure 3 As shown, the fuel injection port 131 is provided on the base 12, and the fuel injection port 131 is located above the mounting through hole 120, the aperture of the fuel injection port 131 is smaller than the aperture of the mounting through hole 120, the aperture of the fuel injection port 131 is smaller than the inner diameter of the fuel inlet pipe 13, and one end of the fuel inlet pipe 13 is connected to the mounting through hole 120 by a thread.

[0051] In specific implementation, the fuel injection port 131 is integrated on the base 12 , so the fuel outlet end of the fuel inlet pipe 13 is connected to the mounting through hole 120 , and the fuel will be directly sprayed out from the fuel injection port 131 on the base 12 .

[0052] As an implementation method of the above embodiment, the fuel injection port 131 and the base 12 can be an integrally formed structure, or can be detachably connected to the base 12 through a threaded structure. When the fuel injection port 131 is connected to the base 12 through a threaded structure, fuel injection ports 131 of different calibers can be replaced according to actual use requirements. The base 12 is provided with a threaded interface for connecting the fuel injection port 131, and the fuel injection port 131 can be connected to the base 12 through a threaded structure.

[0053] As an implementation mode of the above-mentioned embodiment, the outer walls of the upper and lower ends of the oil inlet pipe 13 are provided with threads, and the inner wall of the mounting through hole 120 is provided with threads. The upper end of the oil inlet pipe 13 is connected to the mounting through hole 120 by threads, and the connection is more stable, so that the nozzle atomizer 10 has better stability and sealing; when the nozzle atomizer 10 is used on the burner head device 20, by providing threads on the outer wall of the lower end of the oil inlet pipe 13, it is convenient to connect the fuel source.

[0054] In this embodiment, a plurality of first air inlet holes 121 are evenly distributed around the mounting through hole 120 , and the first air inlet holes 121 are straight holes or spiral holes.

[0055] Among them, the mounting through hole 120 is used to install and allow the oil inlet pipe 13 to pass through. The multiple first air inlet holes 121 are arranged as straight holes or spiral holes evenly distributed around the mounting through hole 120, so that the airflow entering through the multiple first air inlet holes 121 can enter the cavity evenly to ensure the atomization effect.

[0056] In this embodiment, a plurality of second air inlet holes 122 are evenly distributed along the circumference of the edge portion. The second air inlet holes 122 are straight holes or spiral holes, which can ensure uniform air intake into the inner cavity of the burner head device 20, thereby improving the combustion-supporting effect.

[0057] In various embodiments, the edge portion may be Figure 4-6 and Figure 8-9 The annular cone shown, Figure 1-3 The polygonal pyramid shown, Figure 10-11 The annular plate or Figure 12-13 The edge portion is in the shape of a polygonal plate as shown. The thickness of the edge portion may be less than the thickness of the bottom wall of the base 12, and is mainly used to set the second air inlet hole 122 and to be installed on the burner device 20. It should be noted that the above-mentioned annular cone, polygonal cone, annular plate or polygonal plate are only several feasible implementations of the nozzle atomizer 10. In specific implementation, the edge portion may adopt other structures that can set the second air inlet hole 122. In specific implementation, the edge portion may form a certain inclination angle with the bottom wall of the base 12, or may be arranged parallel to the bottom wall of the base 12.

[0058] In yet another embodiment, Figure 4-6 As shown, the edge is annularly conical, the second air inlet 122 is arranged perpendicular to the edge, and is a through hole inclined outward from bottom to top, and the oil injection port 131 is an integrally formed structure with the base 12. In specific implementation, since the air inlet of the combustion chamber is generally opened on the side of the oil bowl, the external air enters the inner cavity of the burner device 20 obliquely through the second air inlet 122, and the entry position is closer to the outer side of the oil bowl, which is convenient for entering the combustion chamber through the air inlet to assist combustion, and the structure is simple, which can save installation space.

[0059] In the above embodiments, the number of first air inlet holes 121 can be 2 to 8, and the number of second air inlet holes 122 can be 6 to 16; for example, in one implementation of the present embodiment, the number of first air inlet holes 121 can be 5, and the number of second air inlet holes 122 can be 12.

[0060] In actual application, the number of the first air inlet holes 121 and the second air inlet holes 122 may also be set to other values ​​according to actual product needs.

[0061] In this embodiment, the bottom wall edge of the base 12 is provided with an upwardly protruding annular mounting portion 123 ; the nozzle 11 is sealed and connected in the annular mounting portion 123 , and a cavity is formed between the conical surface at the bottom of the nozzle 11 and the top surface of the bottom wall of the base 12 .

[0062] Among them, a conical surface is provided at the bottom of the nozzle 11, and the conical surface and the top surface of the bottom wall of the base 12 form a conical cavity. The upper end of the cavity is connected to the nozzle 110, and the lower end is connected to the first air inlet 121. The oil injection port 131 is located in the cavity near the atomizing nozzle 110.

[0063] In specific implementation, fuel and air can enter the cavity through the oil inlet pipe 13 and the first air inlet hole 121 respectively. Since the inner diameter of the cavity gradually decreases from bottom to top, the channel diameter of the airflow gradually becomes smaller until a high-speed airflow is formed at the atomizing nozzle, thereby obtaining a better atomization effect.

[0064] In this embodiment, the inner wall of the annular mounting portion 123 is threadedly connected to the outer wall of the nozzle 11. The inner wall of the annular mounting portion 123 and the outer wall of the nozzle 11 are provided with matching threads, which can realize threaded connection, have good sealing performance, and are easy to assemble.

[0065] In another embodiment, Figure 5As shown, the present invention provides a burner head device 20, which can be used in cooking appliances such as oil or gas stoves. The burner head device 20 includes an air inlet component 21, a shell 22, a first oil bowl 23, a second oil bowl 24, a bowl cover 25, a fire dividing fin 26, a fire gathering ring 27, an igniter 28, and a nozzle atomizer 10 as in any of the above embodiments; the bottom end of the shell 22 is connected to the air inlet component 21, and the air inlet component 21 has an air inlet channel; the first oil bowl 23 is arranged inside the shell 22, and the bottom of the first oil bowl 23 is provided with a mixed oil and gas inlet, and the first oil bowl 23 is also provided with an air inlet hole, and the ignition needle of the igniter 28 is located in the first oil bowl 23; the second oil bowl 24 is arranged inside the first oil bowl 23, and the bottom of the second oil bowl 24 It is provided with a toothed conical protrusion and a first oil and gas hole, and the second oil bowl 24 is provided with a second oil and gas hole on the side wall; the bowl cover 25 is covered on the top of the second oil bowl 24, and the bowl cover 25 is provided with a third oil and gas hole; the fire dividing fin 26 is provided above the second oil bowl 24, and a plurality of fire dividing holes are provided on the side wall of the fire dividing fin 26; the fire gathering ring 27 is provided at the top of the first oil bowl 23 and is located on the outside of the fire dividing fin 26, and the top of the fire gathering ring 27 is higher than the top of the fire dividing fin 26; the base 12 is provided between the air inlet channel and the inner cavity of the shell 22, the atomizing nozzle 110 is located in the mixed oil and gas inlet, and the oil inlet pipe 13 extends downward from the bottom wall of the air inlet component 21.

[0066] Among them, a first combustion chamber is formed between the inner wall of the first oil bowl 23 and the outer wall of the second oil bowl 24, a second combustion chamber is formed between the second oil bowl 24 and the bowl cover 25, and a third combustion chamber is formed between the bowl cover 25 and the fire dividing fin 26. The above three combustion chambers are connected in sequence.

[0067] The working principle of the burner device 20 is as follows: the nozzle atomizer 10 mixes the fuel with the air entering from the first air inlet 121 and atomizes it. The atomized mixed oil and gas enters the first combustion chamber through the atomizing nozzle 110, hits the toothed conical convex part at the bottom of the second oil bowl 23 in the first combustion chamber to achieve re-atomization, and is ignited and burned by the ignition needle. The atomized mixed oil and gas that is not completely burned enters the second combustion chamber and the third combustion chamber in turn, and is mixed with the air entering the inner cavity of the shell 22 from the second air inlet 122 and continues to burn, thereby achieving the effect of complete combustion. At the same time, the atomized mixed oil and gas burns in the first combustion chamber, and the first oil bowl and the second oil bowl are heated while burning. The atomized mixed oil and gas contacts the heated first oil bowl and the second oil bowl, and can quickly gasify the liquid mixed oil and gas to achieve the purpose of complete combustion.

[0068] Since the fuel directly enters the cavity through the oil inlet pipe 13, the entire process can be achieved without high-pressure compression of the fuel. Therefore, the burner head device 20 does not need to be used in conjunction with a high-pressure electromagnetic oil pump, and a mechanical handle oil valve can be used, thereby solving the problem of the high-pressure electromagnetic oil pump being easily damaged, with low maintenance costs and convenient and safe operation; moreover, the mixed oil and gas can be directly ignited and burned after being atomized, and the oil bowl is heated while burning to achieve gasification, without the need to use an additional heater to heat the atomized oil and gas, further improving the energy-saving effect; in addition, the high-speed and high-pressure fan connected to the air inlet channel can also be replaced by an ordinary-pressure AC fan, thereby solving the problem that the burner head in the prior art is difficult to stably control a low fire, and can improve the energy-saving effect; therefore, in specific implementation, the above-mentioned burner head device 20 does not require an electronic controller, a high-pressure electromagnetic oil pump, a high-pressure atomizing fuel nozzle, a heater, etc. to achieve premixed atomization, gasification and combustion of the fuel.

[0069] The above-mentioned burner head device 20 can realize sufficient atomization, gasification and three-stage combustion of the fuel, thereby achieving the effect of complete combustion, energy saving, environmental protection and high safety; at the same time, the nozzle atomizer 10 in the above-mentioned embodiments is adopted, the nozzle is not easy to be blocked and has a long service life; moreover, there is no need to use an electronic controller, a high-pressure electromagnetic oil pump and a heater, the stability is good, it is more energy-saving and environmentally friendly, and the maintenance cost can also be reduced.

[0070] At present, kitchen fuel is generally liquefied gas, natural gas, etc., which are all flammable and explosive fuels, have great safety hazards, and are non-renewable resources. The nozzle atomizer 10 and burner device 20 provided by the present invention can realize the atomization and full combustion of fuel oil fuels such as waste oil and coal-to-oil. Since fuel oils such as waste oil and coal-to-oil do not belong to dangerous chemicals, and have high flash points, open flames are not easy to ignite, and the problem of flammable and explosive existing fuels can be solved; in addition, waste oil belongs to renewable resources, can be recycled, and is more energy-saving and environmentally friendly. Therefore, the nozzle atomizer 10 and burner device 20 provided by the present invention can reasonably utilize new energy fuels such as waste oil and coal-to-oil, so that it can play a role in a variety of places such as hotels and canteens that need stove heating.

[0071] Other structures and operations of the spray head atomizer 10 and the burner head device 20 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

[0072] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0073] In the description of this specification, the reference terms "embodiment", "specific embodiment", "example" and the like mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention.

[0074] In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined with each other in any one or more embodiments or examples in a suitable manner without interference or contradiction.

Claims

1. A nozzle atomizer (10), characterized in that: It comprises a nozzle (11), a base (12) and an oil inlet pipe (13) which are connected in sequence; An atomizing nozzle (110) is provided at the upper portion of the nozzle head (11), and a cavity communicating with the atomizing nozzle (110) is formed between the lower portion of the nozzle head (11) and the upper portion of the base (12); The bottom wall of the base (12) is provided with a mounting through hole (120) and a plurality of first air inlet holes (121), wherein the first air inlet holes (121) are in communication with the cavity; One end of the oil inlet pipe (13) is connected to the mounting through hole (120) and is in communication with an oil injection port (131), and the oil injection port (131) is located in the cavity at a position close to the atomizing nozzle (110).

2. A spray head atomizer (10) according to claim 1, characterized in that: The oil injection port (131) and the oil inlet pipe (13) are an integrally formed structure; The oil inlet pipe (13) comprises the oil injection port (131), the oil inlet port (132), and an oil inlet passage (133) connecting the oil injection port (131) and the oil inlet port (132); the aperture of the oil injection port (131) is smaller than the aperture of the oil inlet port (132); and the aperture of the oil injection port (131) is smaller than the aperture of the atomizing nozzle (110).

3. A spray head atomizer (10) according to claim 1, characterized in that: The oil injection port (131) is arranged on the base (12), and the oil injection port (131) is located above the mounting through hole (120); The diameter of the oil injection port (131) is smaller than the diameter of the mounting through hole (120), and the diameter of the oil injection port (131) is smaller than the inner diameter of the oil inlet pipe (13). One end of the oil inlet pipe (13) is connected to the mounting through hole (120) via a thread.

4. A spray head atomizer (10) according to claim 3, characterized in that: The oil injection port (131) and the base (12) are an integrally formed structure, or the oil injection port (131) is detachably connected to the base (12) via a threaded structure.

5. A spray head atomizer (10) according to any one of claims 1 to 4, characterized in that: The bottom of the base (12) is provided with an outwardly extending edge portion, and the edge portion is provided with a plurality of second air inlet holes (122), and the second air inlet holes (122) are used to communicate with the inner cavity of the burner head device (20).

6. A spray head atomizer (10) according to claim 5, characterized in that: A plurality of the first air inlet holes (121) are evenly distributed around the mounting through hole (120), and the first air inlet holes (121) are straight holes or spiral holes; A plurality of the second air inlet holes (122) are evenly distributed along the circumferential direction on the edge portion, and the second air inlet holes (122) are straight holes or spiral holes.

7. A spray head atomizer (10) according to claim 6, characterized in that: The edge portion is in the shape of an annular cone, a polygonal cone, an annular plate or a polygonal plate.

8. The nozzle atomizer (10) according to claim 1, characterized in that: The bottom wall edge of the base (12) is provided with an upwardly protruding annular mounting portion (123); The nozzle (11) is sealed and connected in the annular mounting portion (123), and the cavity is formed between the conical surface at the bottom of the nozzle (11) and the top surface of the bottom wall of the base (12).

9. A spray head atomizer (10) according to claim 8, characterized in that: The inner side wall of the annular mounting portion (123) is connected to the outer side wall of the nozzle (11) via threads.

10. A furnace head device (20), characterized in that: It comprises an air inlet component (21), a housing (22), a first oil bowl (23), a second oil bowl (24), a bowl cover (25), a fire dividing fin (26), a fire ring (27), an igniter (28), and a nozzle atomizer (10) as claimed in any one of claims 1 to 8; The bottom end of the housing (22) is connected to the air inlet component (21), and the air inlet component (21) has an air inlet channel; The first oil bowl (23) is arranged inside the housing (22), a mixed oil and gas inlet is arranged at the bottom of the first oil bowl (23), an air inlet is also arranged on the first oil bowl (23), and an ignition needle of the igniter (28) is located in the first oil bowl (23); The second oil bowl (24) is arranged inside the first oil bowl (23), the bottom of the second oil bowl (24) is provided with a tooth-shaped conical protrusion and a first oil and gas hole, and the side wall of the second oil bowl (24) is provided with a second oil and gas hole; The bowl cover (25) is arranged on the top of the second oil bowl (24), and a third oil and gas hole is arranged on the bowl cover (25); The fire dividing fin (26) is arranged above the second oil bowl (24), and a plurality of fire dividing holes are arranged on the side wall of the fire dividing fin (26); The fire-gathering ring (27) is arranged on the top of the first oil bowl (23) and is located outside the fire-dividing fin (26), and the top of the fire-gathering ring (27) is higher than the top of the fire-dividing fin (26); The base (12) is arranged between the air inlet channel and the inner cavity of the shell (22), the atomizing nozzle (110) is located in the mixed oil and gas inlet, and the oil inlet pipe (13) extends downwardly out of the bottom wall of the air inlet component (21).

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