Double-channel ring-shaped atomized fuel oven machine
Patent Information
- Application Number
- CN202522409330.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-13
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-11-13
AI Technical Summary
[0004]一般常规燃油型油枪采取机械雾化，机械雾化油枪的结构及系统相对简单，这种油枪的调节范围较小，因为其结构及系统的简单性在此机械式雾化油枪依靠油泵调节回油压力将液体燃料的压力提高，使以较高的压力喷入燃烧室；液体燃料从燃油喷嘴喷入燃烧室时，往往会形成比较大的液滴，使燃油无法和空气均匀地混合，不能充分燃烧，并且还会有一部分燃油液滴被燃气携带经过烟囱排入大气，大大降低了燃烧效率
将燃油作为燃料，以压缩风作为燃油雾化的动力介质，利用压缩风的高压特性以及油枪枪头内部设计的环形拨片，将燃油破碎成微小颗粒并形成环形雾化流，进入油枪内部的燃烧区进行燃烧，具备高安全性、良好稳定性和操作简便性。
Smart Images
Figure CN224838329U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oven drying technology, specifically to a dual-channel annular atomizing fuel oil oven drying machine. Background Technology
[0002] During my country's industrial development era, various industries such as steel, petrochemicals, chemicals, and power generation have different types of industrial kilns. Before the wear-resistant insulation layer inside each kiln is put into use, it needs to be preheated to allow the crystal water and chemical water in the insulation layer to be fully discharged, so that the material can form an organic chemical bond and achieve the required wear resistance. Conventional hot flue gas is generally used for kiln preheating.
[0003] Diesel fuel, used as fuel for hot flue gas furnace drying, is easy to store and has a high calorific value, making it one of the preferred industrial fuels. Through practice and theory, our company has developed a simple, practical, and highly thermally efficient fuel-fired furnace drying device. This device includes: an oil gun, gun head, spiral vanes, oil passages, air passages, spiral diffuser holes, an air compressor, a furnace drying machine combustion chamber housing, a regulating cabinet, an electronic valve, a viewing port, and accessories.
[0004] Conventional fuel nozzles typically employ mechanical atomization. Mechanical atomization nozzles have a relatively simple structure and system, but their adjustment range is limited. Due to this simplicity, they rely on a fuel pump to regulate the return pressure, increasing the pressure of the liquid fuel and injecting it into the combustion chamber at a higher pressure. When the liquid fuel is injected into the combustion chamber from the fuel nozzle, it often forms relatively large droplets, preventing the fuel from mixing evenly with air and resulting in incomplete combustion. Furthermore, some fuel droplets are carried by the combustion gases through the chimney and discharged into the atmosphere, significantly reducing combustion efficiency. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model proposes a dual-channel annular atomizing fuel oil oven, including an adjustment cabinet. One side of the adjustment cabinet has neatly arranged compressed air channels and fuel oil channels from top to bottom. The compressed air channels and fuel oil channels are respectively equipped with compressed air pressure gauges and fuel oil pressure gauges. An oil gun is connected to one side of the adjustment cabinet. The fuel nozzle has a combustion zone inside, a protective plate on the back, and an annular paddle inside the nozzle head. The compressed air channel is connected to the compressed air inlet on the fuel nozzle, and the fuel channel is connected to the fuel inlet on the fuel nozzle via an electronic valve.
[0006] As a further improvement of this utility model, regulating valves are provided on both the compressed air passage and the fuel passage.
[0007] As a further improvement of this utility model, the protective plate is provided with an igniter connection hole, a flame detection probe mounting hole and a fire observation hole.
[0008] The beneficial effects of this utility model are: Using fuel oil as fuel and compressed air as the power medium for fuel atomization, the high-pressure characteristics of compressed air and the annular blades designed inside the fuel nozzle break the fuel into tiny particles and form an annular atomized flow, which enters the combustion zone inside the fuel nozzle for combustion. It features high safety, good stability and ease of operation.
[0009] In kiln baking applications, the atomization effect is thorough, which can significantly save fuel. In addition, the combustion zone is designed with refractory materials, which has higher heat utilization efficiency and is durable.
[0010] The fuel nozzle is equipped with two channels, one compressed air inlet, and one fuel port. An annular blade is located inside the nozzle head, where air and liquid fuel converge and atomize. The nozzle head has a tapered annular orifice on the outside, and is detachable for easy cleaning. The fuel nozzle system burns within the combustion zone of the oven. The outer shell of the combustion zone is made of high-temperature and heat-resistant steel, while the interior is cast in one piece from refractory and wear-resistant materials (alumina silicate fiber blanket, silicon carbide castable). Attached Figure Description
[0011] Figure 1 This is a diagram showing the internal structure of the dual-channel annular atomizing fuel oil oven of this utility model; Figure 2 This is a structural diagram of the oil gun protective plate of this utility model; Figure 3 This is a cross-sectional view of the structure of the oil gun of this utility model.
[0012] In the diagram: 1. Combustion zone, 2. Fuel nozzle, 3. Fuel inlet, 4. Compressed air inlet, 5. Igniter connection hole, 6. Flame detection probe mounting hole, 7. Observation hole, 8. Regulating cabinet, 9. Compressed air passage, 10. Fuel passage, 11. Compressed air pressure gauge, 12. Fuel pressure gauge, 13. Electronic valve. Detailed Implementation
[0013] like Figures 1 to 3 As shown, the dual-channel annular atomizing fuel oil oven provided by this utility model mainly consists of two parts: a regulating cabinet 8 and an oil gun 2.
[0014] Inside the regulating cabinet 8, compressed air passage 9 and fuel passage 10 are vertically mounted side by side. Compressed air passage 9 is equipped with a compressed air pressure gauge 11 and a regulating valve for monitoring and regulating the pressure and flow rate of compressed air from the air compressor. Similarly, fuel passage 10 is equipped with a fuel pressure gauge 12, a regulating valve, and a solenoid valve 13. The electronic valve 13 is used to control the fuel supply.
[0015] The oil gun 2 is connected to the regulating cabinet 8 via a pipeline. A protective plate 14 is fixed to the rear of the oil gun 2, integrating three functional holes: an igniter connection hole 5 for connecting an automatic ignition device; a flame detection probe mounting hole 6 for installing a probe to monitor the flame status and ensure operational safety; and a viewing hole 7 for operators to directly observe the combustion process. The internal cavity of the oil gun 2 forms the combustion zone 1. Its outer shell is made of heat-resistant steel, and the inner lining is formed by a one-time casting of aluminum silicate fiber blanket and silicon carbide castable, providing excellent fire resistance and heat insulation. The nozzle of the oil gun 2 is the core atomizing component, and an annular atomizing disc (not shown separately in the figure) is installed inside.
[0016] During operation, this device uses fuel oil as fuel and compressed air as the power medium for fuel atomization. The compressed air is delivered to the compressed air inlet 4 of the fuel gun 2 through the compressed air channel 9, where it mixes with the fuel oil that enters the fuel inlet 3 of the fuel gun via the fuel channel 10 and electronic valve 13. Utilizing the high-pressure characteristics of the compressed air and the annular blades designed inside the nozzle of the fuel gun 2, the fuel oil is broken into tiny particles and forms an annular atomized flow, which enters the combustion zone 1 inside the fuel gun 2 for combustion.
[0017] Furthermore, the flame generated during combustion can be observed in real time through the observation hole 7 on the protective plate 14. The igniter is connected through the igniter connection hole 5 to achieve automatic ignition. The flame detection probe is installed through the mounting hole 6 to monitor the flame status and ensure stable combustion. At the same time, the compressed air pressure gauge 11 and the fuel oil pressure gauge 12 can monitor the pressure of the two media in real time. By adjusting the regulating valves on the compressed air channel 9 and the fuel oil channel 10, the ratio of compressed air to fuel oil can be flexibly adjusted to adapt to the temperature requirements of different furnace baking conditions, ensuring furnace baking efficiency and fuel utilization. In kiln baking applications, the atomization effect is thorough and fuel is saved. The combustion zone 1 is designed with refractory materials, which has higher thermal utilization efficiency and is durable.
[0018] The fuel gun 2 uses compressed gas atomization, which uses compressed gas to atomize liquid fuel through the nozzle of the fuel gun 2. This method can not only improve combustion efficiency, but also effectively save fuel resources.
[0019] In practical use, the oil gun 2 is installed in the combustion chamber of the oven. It generates compressed gas by means of an air compressor connected to the outside of the compressed air channel. After increasing its pressure, it is injected into the compressed air inlet 4. The other end of the oil gun 2 is the fuel inlet 3. Under the pressure of the compressed gas, the liquid fuel can be more fully atomized, thereby improving combustion efficiency, saving fuel, and also helping to meet environmental protection requirements.
[0020] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A dual-channel annular atomizing fuel oil oven, comprising a regulating cabinet (8), characterized in that: The regulating cabinet (8) has a neatly arranged compressed air channel (9) and fuel channel (10) on one side from top to bottom. The compressed air channel (9) and fuel channel (10) are respectively equipped with a compressed air pressure gauge (11) and a fuel pressure gauge (12). A fuel gun (2) is connected to one side of the regulating cabinet (8). The fuel gun (2) has a combustion zone (1) inside and a protective plate (14) on the back. The nozzle of the fuel gun (2) is designed with an annular paddle. The compressed air channel (9) is connected to the compressed air inlet (4) on the fuel gun (2). The fuel channel (10) is connected to the fuel inlet (3) on the fuel gun (2) via an electronic valve (13).
2. The dual-channel annular atomizing fuel oil oven according to claim 1, characterized in that: Both the compressed air passage (9) and the fuel passage (10) are equipped with regulating valves.
3. The dual-channel annular atomizing fuel oil oven according to claim 2, characterized in that: The protective plate (14) has an igniter connection hole (5), a flame detection probe mounting hole (6), and a fire observation hole (7).