Multi-fuel combustion furnace with double feeding channels

Abstract

A multi-fuel double-feeding-channel combustion furnace relates to the new technical field of outdoor and kitchen oil gas furnaces and comprises a furnace end body and an inner barrel structure in sealed connection with the interior of the furnace end body, the inner barrel is of a barrel structure with the upper end open and the lower end closed, and the lower portion of the inner barrel is connected with an oil pipeline in a bypass mode and provided with a flow adjusting valve to achieve accurate oil supply control. The upper end of the inner cylinder is in sealed connection with an oil nozzle with a protruding structure, and the protruding part is inserted into an air spraying hole of the air nozzle above. Air is supplied to a cavity formed between the air nozzle and the oil nozzle through an independent air pipeline, so that oil and gas burning can be carried out independently and can also cooperate with each other. According to the structure, the preheating-free function of the oil furnace and the preheating-free function of the low-flash-point fuel are achieved, multiple purposes of one furnace are achieved, and optimization is achieved in the aspects of combustion efficiency improvement and use convenience.

Description

Technical Field

[0001] This utility model belongs to the new technical field of outdoor and kitchen gas stoves, and particularly relates to a multi-fuel dual-feed channel combustion furnace. Background Technology

[0002] Existing liquid fuel stoves typically require preheating of the burner head using alcohol ignition or a spray gun before use. The heat from the burner head vaporizes the liquid fuel, allowing it to ignite and burn. This means they cannot be used immediately upon ignition, resulting in slightly less ease of use. Furthermore, liquid fuel stoves can only burn liquid fuels, not gaseous fuels, and certainly cannot achieve simultaneous combustion of liquid and gaseous fuels. Therefore, improvements to existing liquid fuel stoves are necessary. Utility Model Content

[0003] To achieve preheating-free ignition of liquid fuel furnaces and simultaneous use of liquid and gaseous fuels, this invention provides a multi-fuel dual-feed channel combustion furnace. This invention adds a gaseous fuel channel to the liquid fuel furnace, allowing the gaseous fuel to be used immediately upon ignition. After ignition, the furnace head is preheated, and the heat is conducted through the furnace head to vaporize the liquid fuel, thereby achieving preheating-free ignition of liquid fuel furnaces and simultaneous use of liquid and gaseous fuels.

[0004] The technical solution provided by this utility model is: a multi-fuel dual-feed channel combustion furnace, including a furnace head, an inner cylinder sealed inside the furnace head, the upper end of the inner cylinder being open and the lower end being closed, an oil pipeline bypassing the lower part of the inner cylinder, an oil nozzle sealed at the upper end of the inner cylinder, an oil nozzle having an oil injection hole in the center of the oil nozzle, an air jet nozzle sealed inside the furnace head above the oil nozzle, an air jet hole in the center of the air jet nozzle, a protrusion in the center of the upper end of the oil nozzle, the protrusion being inserted into the air jet hole of the air jet nozzle and fitting with the air jet hole with a gap, and a gas pipeline bypassing the furnace head between the oil nozzle and the air jet nozzle.

[0005] A further technical solution is to install a unclogging needle inside the inner cylinder below the fuel injector for clearing the fuel injection hole.

[0006] Optional: Both the needle and the inner cylinder are made of non-magnetic material. The lower end of the needle is equipped with a magnet, which is driven to move up and down by another magnet outside the inner cylinder.

[0007] Optionally: The needle has a rack, a gear meshes next to the rack, and an adjusting rod is connected to the center of the gear. The up and down movement of the needle is adjusted by rotating the adjusting rod.

[0008] Optionally: The needle has a transverse groove on its side, and a rotating rod is provided on the side of the inner cylinder. One end of the rotating rod extends into the inner side of the inner cylinder and the rotating rod can rotate relative to the inner cylinder. The end of the rotating rod extending into the inner cylinder has an eccentric protrusion. The eccentric protrusion is inserted into the transverse groove, so that rotating the rotating rod drives the needle to move up and down.

[0009] A further technical solution is that a regulating valve for controlling the oil inlet volume is installed inside the oil pipeline.

[0010] A further technical solution is: the upper center of the fuel injector has a protrusion that is inserted into the jet hole of the fuel injector and sealed to the jet hole, and another gas ejection hole is opened on the fuel injector.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention adds a gaseous fuel channel to the liquid fuel furnace, allowing the gaseous fuel to be used immediately upon ignition. After ignition, the furnace head is preheated, and the heat is conducted through the furnace head to vaporize the liquid fuel, thus achieving preheating-free ignition of the liquid fuel furnace.

[0013] In this invention, liquid fuel and gaseous fuel are supplied separately, interacting with each other but not interfering with each other. It can be used with only the oil line, or only the gas line, or both at the same time.

[0014] This invention avoids the situation of fuel cross-contamination, thereby preventing liquid fuel from clogging the gas pipeline.

[0015] This invention allows for separate control of liquid and gaseous fuels, resulting in more precise ignition control.

[0016] When the liquid fuel is a low flash point fuel, such as gasoline, this invention introduces high-pressure air into the gas circuit. The airflow carries the fuel upward and atomizes it, thus achieving the same preheating-free ignition function. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of Embodiment 1.

[0018] Figure 2 This is a schematic diagram of the structure of Embodiment 2.

[0019] Figure 3 This is a schematic diagram of the structure of Embodiment 3.

[0020] In the diagram: 1. Burner head; 2. Air jet hole; 3. Air jet nozzle; 4. Gas pipe; 5. Oil injector; 6. Oil injection hole; 7. Needle; 8. Magnet; 9. Inner cylinder; 10. Oil pipe; 11. Regulating valve; 12. Protrusion; 13. Gas ejection hole; 14. Rotating rod; 15. Eccentric protrusion. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] Example 1: Reference Figure 1 This embodiment includes a burner head 1, with an inner cylinder 9 sealed inside the burner head 1. The upper end of the inner cylinder 9 is open and the lower end is closed. An oil pipe 10 is bypassed to the lower part of the inner cylinder 9. An oil nozzle 5 is sealed to the upper end of the inner cylinder 9. The oil nozzle 5 has an oil spray hole 6 in the center. An air jet nozzle 3 is sealed to the burner head 1 above the oil nozzle 5. The air jet nozzle 3 has an air spray hole 2 in the center. The upper end of the oil nozzle 5 has a protrusion 12 in the center. The protrusion 12 is inserted into the air spray hole 2 of the air jet nozzle 3 and is in clearance fit with the air spray hole 2. A gas pipe 4 is bypassed on the burner head 1 between the oil nozzle 5 and the air jet nozzle 3. The gas from the gas pipe 4 is sprayed out from the gap between the oil nozzle 5 and the air spray hole 2.

[0023] A cleaning needle 7 for unblocking the fuel injector 6 is installed inside the inner cylinder 9 below the fuel injector 5. Both the cleaning needle 7 and the inner cylinder 9 are made of non-magnetic material. The lower end of the cleaning needle 7 is equipped with a magnet 8. Through another magnet 8 outside the inner cylinder 9, the two magnets 8 drive the magnet 8 at the lower end of the cleaning needle 7 to move up and down using the principle that like poles repel and unlike poles attract.

[0024] The oil pipeline 10 is equipped with a regulating valve 11 to control the oil inlet volume.

[0025] Example 2: Reference Figure 2 Unlike Embodiment 1, the needle 7 described in this embodiment has a rack, a gear meshing next to the rack, and an adjusting rod connected to the center of the gear. The up and down movement of the needle 7 can be adjusted by rotating the adjusting rod.

[0026] The protrusion 12 at the center of the upper end of the fuel injector 5 is inserted into the jet hole 2 of the jet nozzle 3 and is sealed to fit the jet hole 2. Another gas ejection hole 13 is opened on the upper part of the jet nozzle 3.

[0027] Example 3: Reference Figure 3 Unlike Embodiment 1, the needle 7 has a transverse groove on its side, and the inner cylinder 9 has a rotating rod 14 on its side. One end of the rotating rod 14 extends into the inner side of the inner cylinder 9 and can rotate relative to the inner cylinder 9. The end of the rotating rod 14 extending into the inner cylinder 9 has an eccentric protrusion 15. The eccentric protrusion 15 is not coaxial with the rotating rod 14, but is located at an eccentric position at the end of the rotating rod 14. The eccentric protrusion 15 is inserted into the transverse groove, so that rotating the rotating rod 14 drives the needle 7 to move up and down.

[0028] In summary, this application adds a gaseous fuel channel to the liquid fuel furnace, allowing the gaseous fuel to be used immediately upon ignition. After ignition, the burner head 1 is preheated, and the heat is conducted through the burner head 1 to vaporize the liquid fuel, thus achieving preheating-free ignition of the liquid fuel furnace. In this application, liquid and gaseous fuels are supplied separately, avoiding cross-contamination and thus preventing liquid fuel from clogging the gas pipeline 4. After ignition, this application can use either the oil line alone, the gas line alone, or both simultaneously. The separate supply and control of liquid and gaseous fuels in this application allows for more precise ignition control. When the liquid fuel used in this application is a low flash point fuel (such as gasoline), high-pressure air is introduced into the gas line, and the airflow atomizes the fuel, achieving the same preheating-free ignition function.

Claims

1. A multi-fuel dual-feed channel combustion furnace, comprising a furnace head (1), characterized in that: The inner cylinder (9) is sealed inside the burner head (1). The upper end of the inner cylinder (9) is open and the lower end is closed. An oil pipe (10) is bypassed at the lower part of the inner cylinder (9). An oil nozzle (5) is sealed at the upper end of the inner cylinder (9). An oil nozzle (6) is provided in the center of the oil nozzle (5). An air nozzle (3) is sealed inside the burner head (1) above the oil nozzle (5). An air nozzle (2) is provided in the center of the air nozzle (3). A protrusion (12) is provided at the center of the upper end of the oil nozzle (5). The protrusion (12) is inserted into the air nozzle (2) of the air nozzle (3) and is fitted with the air nozzle (2) with a gap. A gas pipe (4) is bypassed on the burner head (1) between the oil nozzle (5) and the air nozzle (3).

2. The multi-fuel dual-feed channel combustion furnace according to claim 1, characterized in that: A needle (7) for unblocking the injection hole (6) is provided in the inner cylinder (9) below the fuel injector (5).

3. The multi-fuel dual-feed channel combustion furnace according to claim 2, characterized in that: The needle (7) and the inner cylinder (9) are both made of non-magnetic materials. The lower end of the needle (7) is equipped with a magnet (8), which is driven to move up and down by another magnet (8) outside the inner cylinder (9).

4. A multi-fuel dual-feed channel combustion furnace according to claim 2, characterized in that: The needle (7) has a rack, a gear meshing next to the rack, and an adjusting rod connected to the center of the gear. The up and down movement of the needle (7) can be adjusted by rotating the adjusting rod.

5. A multi-fuel dual-feed channel combustion furnace according to claim 2, characterized in that: The needle (7) has a transverse groove on its side, and the inner cylinder (9) has a rotating rod (14) on its side. One end of the rotating rod (14) extends into the inner side of the inner cylinder (9) and the rotating rod (14) can rotate relative to the inner cylinder (9). The end of the rotating rod (14) extending into the inner cylinder (9) has an eccentric protrusion (15). The eccentric protrusion (15) is inserted into the transverse groove, so that when the rotating rod (14) is rotated, the needle (7) moves up and down.

6. A multi-fuel dual-feed channel combustion furnace according to claim 1, characterized in that: The oil pipeline (10) is equipped with a regulating valve (11) to control the oil inlet volume.

7. A multi-fuel dual-feed channel combustion furnace according to claim 1, characterized in that: The protrusion (12) at the center of the upper end of the fuel injector (5) is inserted into the jet hole (2) of the jet nozzle (3) and sealed with the jet hole (2). Another gas ejection hole (13) is opened on the jet nozzle (3).

Images