Low pressure fan atomizing burner

Abstract

The utility model discloses a middle and low pressure fan atomization stove head, including the shell, the shell bottom intercommunication has the air pipe, the shell inner chamber bottom fixed mounting has the bottom plate, and the bottom plate top installs the fuel oil atomizer, and the fuel oil atomizer top installs the inner bag, and the inner bag inside installation has the ignition needle, the fuel oil atomizer inside installation has the atomization oil nozzle, and the atomization oil nozzle outside is equipped with the cyclone pipe, and the cyclone pipe bottom is fixedly connected with the fuel oil atomizer inner chamber, and the cyclone pipe top fixed mounting has the wind flow acceleration pipe, and the wind flow acceleration pipe is communicated with the wind oil atomization hole that fuel oil atomizer top opened, and the cyclone pipe surface is equipped with the cyclone hole, and the cyclone hole is communicated with the fuel oil atomizer inner chamber, and the middle and low pressure wind rotates acceleration in the cyclone pipe inside. The utility model solves the atomization stove head in the use of middle and low pressure fan and supplies the wind when, the atomization effect of fuel oil is poor, and the problem of influence fuel oil subsequent combustion.

Description

Technical Field

[0001] This utility model relates to the field of fuel stove technology, specifically to a medium- and low-pressure fan atomizing burner head. Background Technology

[0002] In existing fuel-fired stove technology, to improve combustion efficiency and fuel utilization, liquid fuel is generally atomized before combustion. Currently, mainstream products on the market mainly include electric fuel injection stoves, gas-operated stoves, and high-pressure fan atomizing stoves. Among them, high-pressure fan atomizing stoves use high-pressure air to disperse fuel into fine mist inside the burner, achieving complete combustion and offering advantages such as high combustion efficiency and stable flame. However, the high-pressure fans relied upon by these stoves are mostly driven by brushed or brushless motors. While brushed fans are cheaper, their carbon brushes wear easily, leading to a short lifespan, frequent maintenance, and a poor user experience. Brushless fans, while having a longer lifespan and stable operation, are expensive to manufacture and sell, making them difficult for consumers to widely accept. Therefore, how to reduce the cost of the fan system, extend its lifespan, and improve overall economy while ensuring good atomization and combustion performance has become a pressing technical challenge for the fuel-fired stove industry. To address the aforementioned issues, there is an urgent need to develop a new type of atomizing burner structure that can effectively atomize fuel by utilizing the airflow generated by more common and inexpensive medium- or low-pressure fans, thereby balancing performance, lifespan, and economy, and meeting the market's pressing demand for high-performance, cost-effective fuel cooktops. Utility Model Content

[0003] The purpose of this invention is to provide a medium- and low-pressure fan atomizing burner head, which solves the problem that the existing atomizing burner head has poor fuel atomization effect when using a medium- and low-pressure fan for air supply, thus affecting the subsequent combustion of fuel. To achieve the above objectives, this utility model provides the following technical solution: a medium-low pressure fan atomizing furnace head, including a shell, with an air duct connected to the bottom of the shell, a base plate fixedly installed at the bottom of the inner cavity of the shell, a fuel atomizer installed at the top of the base plate, an inner liner installed at the top of the fuel atomizer, and an ignition needle installed inside the inner liner; The fuel atomizer is equipped with an atomizing nozzle inside, and a cyclone tube is provided on the outside of the atomizing nozzle. The bottom of the cyclone tube is fixedly connected to the inner cavity of the fuel atomizer, and an airflow acceleration tube is fixedly installed on the top of the cyclone tube. The airflow acceleration tube is connected to the air-fuel atomization hole opened on the top of the fuel atomizer. Cyclone holes are opened on the surface of the cyclone tube and are connected to the inner cavity of the fuel atomizer. Medium and low pressure air rotates and accelerates inside the cyclone tube. As a preferred embodiment of the medium-low pressure fan atomizing furnace head of this utility model, the airflow acceleration pipe is a cone shape that is narrow at the top and wide at the bottom. It guides and accelerates the airflow through the Venturi principle. The bottom of the outer shell, the bottom plate, and the fuel atomizer are provided with through holes that are connected to the air duct. As a preferred embodiment of the medium-low pressure fan atomizing furnace head of this utility model, the surface of the fuel atomizer is provided with air outlet holes, which are connected to the inner cavity of the outer shell. As a preferred embodiment of the medium-low pressure fan atomizing furnace head of this utility model, the inner liner surface is provided with inner liner air holes around the top and bottom, and the inner liner air holes are connected to the inner cavity of the outer shell. As a preferred embodiment of the medium-low pressure fan atomizing furnace head of this utility model, a lower pressure fire plate is fixedly installed in the middle of the inner cavity of the inner liner. As a preferred embodiment of the medium-low pressure fan atomizing furnace head of this utility model, an upper pressure fire plate is fixedly installed on the top of the inner liner. As a preferred embodiment of the medium-low pressure fan atomizing furnace head of this utility model, a fire-gathering ring is fixedly installed on the top of the upper pressure fire plate. As a preferred embodiment of the medium-low pressure fan atomizing furnace head of this utility model, the atomizing nozzle is threadedly connected to the bottom of the fuel atomizer, and the bottom of the atomizing nozzle extends through the air duct. As a preferred embodiment of the medium-low pressure fan atomizing furnace head of this utility model, an oil inlet pipe is installed at the bottom of the atomizing oil nozzle, and one end of the oil inlet pipe extends through to the outside of the air duct. Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model utilizes the synergistic effect of a cyclone tube, cyclone orifice, and airflow acceleration tube. A portion of the air enters the cyclone tube tangentially through the cyclone orifice, forming a rotating airflow. Under the guidance of the conical airflow acceleration tube, it is further accelerated and pressurized, thereby generating a high-speed rotating airflow at the atomizing nozzle outlet. This fully breaks the sprayed fuel into fine oil mist. The other portion of the air enters the combustion chamber through the air outlet and inner liner air holes, providing secondary combustion air and optimizing the combustion atmosphere. This design significantly reduces the dependence on high-pressure blowers and avoids the disadvantages of short lifespan of brushed high-pressure blowers and high cost of brushless blowers. While ensuring good atomization effect and combustion efficiency, it greatly improves the economy, reliability, and service life of the entire machine. 2. The inner liner of this utility model has built-in lower and upper pressure plates, which effectively control the flame height and shape, prevent flame overflow or backfire, and the top flame concentrating ring further concentrates heat energy, improves thermal efficiency and firepower concentration, and meets the cooking requirements for flame stability and intensity. At the same time, the atomizing nozzle is threaded and extends into the air duct, which is convenient for disassembly and maintenance. The oil inlet path is simple and reliable. The whole system not only achieves efficient atomization and complete combustion of fuel, but also has the advantages of compact structure, low manufacturing cost, low operating noise and convenient maintenance. It is particularly suitable for the commercial and household fuel stove market with high requirements for cost performance and long-term operational stability, and has significant promotion and application value. Attached Figure Description

[0004] Figure 1 This is a schematic diagram of the structure of this utility model. In the diagram: 1. Outer shell; 2. Inner liner; 3. Inner liner vent; 4. Fuel atomizer; 5. Air outlet; 6. Base plate; 7. Air duct; 8. Cyclone vent; 9. Cyclone duct; 10. Fuel inlet pipe; 11. Through hole; 12. Atomizing nozzle; 13. Airflow acceleration pipe; 14. Lower burner plate; 15. Upper burner plate; 16. Flame concentrator ring; 17. Ignition needle; 18. Fuel atomizing hole. Detailed Implementation

[0005] Please see Figure 1 The medium and low pressure fan atomizing furnace head includes an outer shell 1, with an air duct 7 connected to the bottom of the outer shell 1, a base plate 6 fixedly installed at the bottom of the inner cavity of the outer shell 1, a fuel atomizer 4 installed on the top of the base plate 6, an inner liner 2 installed on the top of the fuel atomizer 4, and an ignition needle 17 installed inside the inner liner 2. Furthermore, an atomizing nozzle 12 is installed inside the fuel atomizer 4, and a cyclone tube 9 is provided on the outside of the atomizing nozzle 12. The bottom of the cyclone tube 9 is fixedly connected to the inner cavity of the fuel atomizer 4, and an airflow acceleration tube 13 is fixedly installed on the top of the cyclone tube 9. The airflow acceleration tube 13 is connected to the air-oil atomization hole 18 opened on the top of the fuel atomizer 4. A cyclone hole 8 is opened on the surface of the cyclone tube 9, and the cyclone hole 8 is connected to the inner cavity of the fuel atomizer 4. The medium and low pressure air rotates and accelerates inside the cyclone tube 9. Furthermore, the airflow acceleration pipe 13 is a cone shape that is narrow at the top and wide at the bottom. It guides and accelerates the airflow through the Venturi principle. The bottom of the outer shell 1, the base plate 6 and the fuel atomizer 4 are provided with through holes 11, which are connected to the air duct 7. Furthermore, the surface of the fuel atomizer 4 is provided with air outlet holes 5, which are connected to the inner cavity of the outer shell 1. Furthermore, the inner liner 2 has vent holes 3 around its top and bottom surfaces, which are connected to the inner cavity of the outer shell 1. Furthermore, a downward-pressing fire plate 14 is fixedly installed at the middle of the inner cavity of the inner liner 2. Furthermore, an upper pressure plate 15 is fixedly installed on the top of the inner liner 2. Furthermore, a fire-gathering ring 16 is fixedly installed on the top of the upper fire plate 15. Furthermore, the atomizing nozzle 12 is threadedly connected to the bottom of the fuel atomizer 4, and the bottom of the atomizing nozzle 12 extends into the air duct 7. Furthermore, an oil inlet pipe 10 is installed at the bottom of the atomizing nozzle 12, with one end of the oil inlet pipe 10 extending through to the outside of the air duct 7. During operation, a common low-to-medium pressure fan generates air, which is blown into the fuel atomizer 4 through the air duct 7 and through-hole 11. After entering the fuel atomizer 4, the air splits into two parts. One part enters the space between the outer shell 1 and the inner liner 2 through the air outlet 5, and then enters the inner liner 2 through the inner liner air hole 3. The other part of the air enters the airflow acceleration pipe 13, which pressurizes and accelerates the air using the Venturi principle. The accelerated and pressurized air then enters the cyclone hole 8, which is inclined, causing the air to swirl. The tube 9 rotates inside, and the external fuel enters the atomizing nozzle 12 through the fuel inlet pipe 10. Then, the air blows the fuel sprayed from the atomizing nozzle 12 out of the air-fuel atomizing hole 18. The generated oil mist enters the bottom of the inner cavity of the inner liner 2. At this time, the ignition needle 17 inside the inner liner 2 works. The spark on the ignition needle 17 ignites the oil mist. The flame generated by the combustion of the oil mist burns inside the inner liner 2. The lower pressure plate 14 and the upper pressure plate 15 suppress the flame, and the flame concentrating ring 16 concentrates the flame so that a usable flame is sprayed out from the top of the flame concentrating ring 16. The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A medium-low pressure fan atomizing burner tip comprising a housing (1), characterized in that: The bottom of the outer shell (1) is connected to an air duct (7), and a base plate (6) is fixedly installed at the bottom of the inner cavity of the outer shell (1). A fuel atomizer (4) is installed on the top of the base plate (6), and an inner liner (2) is installed on the top of the fuel atomizer (4). An ignition needle (17) is installed inside the inner liner (2). The fuel atomizer (4) is equipped with an atomizing nozzle (12) inside. A cyclone tube (9) is provided on the outside of the atomizing nozzle (12). The bottom of the cyclone tube (9) is fixedly connected to the inner cavity of the fuel atomizer (4). An airflow acceleration tube (13) is fixedly installed on the top of the cyclone tube (9). The airflow acceleration tube (13) is connected to the air-oil atomization hole (18) opened on the top of the fuel atomizer (4). A cyclone hole (8) is opened on the surface of the cyclone tube (9). The cyclone hole (8) is connected to the inner cavity of the fuel atomizer (4). The medium and low pressure air rotates and accelerates inside the cyclone tube (9).

2. The medium-low pressure fan atomizing burner tip of claim 1, wherein: The airflow acceleration tube (13) is a cone shape that is narrow at the top and wide at the bottom. It guides and accelerates the airflow through the Venturi principle. The bottom of the outer shell (1), the base plate (6) and the fuel atomizer (4) are provided with through holes (11), which are connected to the air duct (7).

3. The medium-low pressure fan atomizing burner tip of claim 1, wherein: The fuel atomizer (4) has an air outlet (5) around its surface, and the air outlet (5) is connected to the inner cavity of the outer shell (1).

4. The medium-low pressure fan atomizing burner tip of claim 1, wherein: The inner liner (2) has vent holes (3) around its top and bottom surfaces, and the vent holes (3) are connected to the inner cavity of the outer shell (1).

5. The medium-low pressure fan atomizing burner tip of claim 1, wherein: The inner liner (2) has a pressure plate (14) fixedly installed at the middle of its inner cavity.

6. The medium-low pressure fan atomizing burner tip of claim 1, wherein: The top of the inner liner (2) is fixedly installed with an upper pressure plate (15).

7. The medium-low pressure fan atomizing burner tip of claim 6, wherein: A fire-gathering ring (16) is fixedly installed on the top of the upper fire-pressing plate (15).

8. The low-medium pressure fan atomizing burner tip of claim 1, wherein: The atomizing nozzle (12) is threaded to the bottom of the fuel atomizer (4), and the bottom of the atomizing nozzle (12) extends into the air duct (7).

9. The medium-low pressure fan atomizing burner tip of claim 8, wherein: The atomizing nozzle (12) is equipped with an oil inlet pipe (10) at the bottom, and one end of the oil inlet pipe (10) extends through to the outside of the air duct (7).

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