Carbon deposition prevention fuel atomization structure based on copper pipe heating
Patent Information
- Application Number
- CN202522424102.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-14
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-11-14
AI Technical Summary
[0003]然而，市面上的燃油灶使用久之后，加热器容易出现积碳现象，主要是在燃油灶的电源关闭时，加热器内会残留有余油（即油膜），容易出现燃油碳化现象（即油膜冷却后形成积碳），而碳化后残留物容易附着在加热器内，久而久之就会出现堵塞现象，影响燃油灶的使用及寿命等
[0013]与现有技术相比，本实用新型提供了一种基于铜管加热的防积碳燃油雾化结构，具备以下有益效果：本实用新型所公开的基于铜管加热的防积碳燃油雾化结构包括：雾化喷嘴；电加热器；油泵；电磁阀；进油管，其一端用于与油罐连接，油泵设置在进油管中；混合器，其输入口与进油管的另一端连接；第一回油管，其一端与混合器连接，另一端用于与油罐连接，电磁阀设置在第一回油管中；排油管，其一端与混合器连接；铜管，其另一端的底壁与排油管的另一端连接，雾化喷嘴设置在铜管的一端中，且电加热器设置在铜管中；第二回油管，其一端设置在铜管的另一端的顶壁，另一端与第一回油管连接。通过上述方式，本实用新型能够在关闭火源后利用雾化喷嘴输入少量冷空气至铜管内，以通过铜管的余热烘干残留油膜，避免冷却后形成积碳，有效降低附着在铜管内的积碳，使得不容易出现堵塞现象，保证燃油灶的使用及寿命。
Smart Images
Figure CN224904935U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of household fuel stoves, specifically a fuel atomization structure based on copper tube heating to prevent carbon buildup. Background Technology
[0002] With the development of bio-ethanol fuel oil, fuel prices have become relatively cheap and have gained increasing popularity. As a result, most households now have fuel stoves. Currently, fuel stoves on the market mainly consist of a panel, a burner core, a burner frame surrounding the burner core, an ignition switch, an igniter, a heater, and fuel lines. Fuel stoves primarily use a heater to heat the fuel oil, which then produces vapors. These vapors are then ignited by an igniter for cooking.
[0003] However, after prolonged use, fuel stoves on the market are prone to carbon buildup in the heater. This is mainly because when the power to the fuel stove is turned off, residual oil (i.e., an oil film) remains inside the heater, which can easily lead to fuel carbonization (i.e., the oil film cools and forms carbon deposits). The carbonized residue tends to adhere to the heater, eventually causing blockages and affecting the use and lifespan of the fuel stove. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides a fuel atomization structure based on copper tube heating to prevent carbon buildup and solve the aforementioned technical problems.
[0005] To solve the above-mentioned technical problems, this utility model provides a technical solution: a fuel atomization structure for preventing carbon buildup based on copper tube heating, including an atomizing nozzle, an electric heater, a fuel pump, and a solenoid valve, characterized in that it further includes: a fuel inlet pipe, one end of which is connected to a fuel tank, wherein the fuel pump is disposed in the fuel inlet pipe; a mixer, the inlet of which is connected to the other end of the fuel inlet pipe; a first return fuel pipe, one end of which is connected to the return port of the mixer, and the other end of which is connected to the fuel tank, wherein the solenoid valve is disposed in the first return fuel pipe; a fuel outlet pipe, one end of which is connected to the outlet port of the mixer; a cylindrical copper tube located above the mixer, one end of which is sealed and the other end of which is open, wherein the bottom wall of the other end of the copper tube is connected to the other end of the fuel outlet pipe, the atomizing nozzle is disposed in one end of the copper tube, and the electric heater is disposed in the copper tube; and a second return fuel pipe, one end of which is disposed on the top wall of the other end of the copper tube, and the other end of which is connected to the first return fuel pipe.
[0006] Furthermore, the outer diameter of the oil drain pipe is larger than the outer diameter of the second oil return pipe, and the orifice diameter of the oil drain pipe is larger than the orifice diameter of the second oil return pipe.
[0007] Furthermore, the electric heater is an electric heating wire, wherein the electric heating wire is arranged around the outside of the copper tube.
[0008] Furthermore, the inner hole at one end of the copper tube is provided with an internal thread, and one end of the atomizing nozzle extends with an extension portion, the outer wall of the extension portion being provided with an external thread that is threadedly connected to the internal thread.
[0009] Furthermore, the mixer includes: an outer tube, cylindrical in shape, with one end sealed and the other end open, wherein one end of the outer tube has a first opening serving as the oil return port of the mixer, and one end of the first oil return pipe communicates with the first opening at one end of the outer tube; and a middle tube, cylindrical in shape, inserted inside the outer tube, with one end sealed and the other end open, wherein the outer wall of the other end of the middle tube is sealed to the inner wall of the other end of the outer tube, such that the outer wall of the middle tube and the inner wall of the outer tube form an annular inner wall. The outer tube has a first opening at one end that communicates with the annular inner cavity, and the middle tube has a second opening at one end that communicates with the annular inner cavity; the inner tube is cylindrical and passes through the middle tube, with both ends open, wherein one end of the inner tube communicates with the other end of the oil inlet pipe, and the other end of the inner tube communicates with the second opening; wherein the other end of the outer tube has a third opening that communicates with the annular inner cavity, the third opening serving as the oil outlet of the mixer, and one end of the oil outlet pipe communicates with the third opening.
[0010] Furthermore, the distance between the sealing connection of the middle tube and the outer tube and one end of the middle tube is less than the distance between the sealing connection of the middle tube and the outer tube and the first opening.
[0011] Furthermore, the outer tube has a larger aperture than the middle tube, the middle tube has a larger aperture than the inner tube, and the outer wall of the other end of the middle tube extends with a cylindrical protrusion, the outer diameter of which is equal to the aperture of the outer tube.
[0012] Furthermore, the inner wall of the copper tube is coated with an anti-sticking layer.
[0013] Compared with the prior art, this utility model provides a fuel atomization structure for preventing carbon buildup based on copper tube heating, which has the following beneficial effects: The fuel atomization structure for preventing carbon buildup based on copper tube heating disclosed in this utility model includes: an atomizing nozzle; an electric heater; an oil pump; a solenoid valve; an inlet pipe, one end of which is used to connect to the oil tank, and the oil pump is installed in the inlet pipe; a mixer, the inlet of which is connected to the other end of the inlet pipe; a first return pipe, one end of which is connected to the mixer, and the other end of which is used to connect to the oil tank, and the solenoid valve is installed in the first return pipe; an outlet pipe, one end of which is connected to the mixer; a copper tube, the bottom wall of which is connected to the other end of the outlet pipe, the atomizing nozzle is installed in one end of the copper tube, and the electric heater is installed in the copper tube; and a second return pipe, one end of which is installed in the top wall of the other end of the copper tube, and the other end of which is connected to the first return pipe. Through the above method, this utility model can use an atomizing nozzle to input a small amount of cold air into the copper tube after the fire source is turned off, so as to dry the residual oil film through the residual heat of the copper tube, avoid the formation of carbon deposits after cooling, effectively reduce the carbon deposits adhering to the copper tube, so that blockage is less likely to occur, and ensure the use and life of the fuel stove. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of the fuel stove of this utility model; Figure 2 This is a schematic diagram of the anti-carbon-deposit fuel atomization structure based on copper tube heating of this utility model; Figure 3 for Figure 2 A partial structural diagram of the fuel atomization structure for preventing carbon buildup in the middle section; Figure 4 for Figure 2 A cross-sectional schematic diagram of the mixer with a fuel atomization structure designed to prevent carbon buildup in the middle section; Figure 5 for Figure 2 A schematic diagram of the second part of the fuel atomization structure for preventing carbon buildup; Figure 6 for Figure 2 A schematic diagram of the third part of the fuel atomization structure for preventing carbon buildup. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0016] like Figure 1-6As shown, the present invention provides a fuel atomization structure for preventing carbon buildup based on copper pipe heating, including an atomizing nozzle 10, an electric heater, an oil pump 11, a solenoid valve 12, an oil inlet pipe 13, a mixer 14, a first return oil pipe 15, an oil outlet pipe 16, a copper pipe 17, and a second return oil pipe 18.
[0017] One end of the inlet pipe 13 is used to connect to the oil tank, wherein the oil pump 11 is installed in the inlet pipe 13 to pump the fuel in the oil tank to the mixer 14.
[0018] The inlet of mixer 14 is connected to the other end of oil inlet pipe 13.
[0019] One end of the first return oil pipe 15 is connected to the return oil port of the mixer 14, and the other end of the first return oil pipe 15 is used to connect to the oil tank. The solenoid valve 12 is installed in the first return oil pipe 15. It should be understood that when the solenoid valve 12 is opened, excess or unsprayed fuel in the mixer 14 flows back to the oil tank.
[0020] One end of the oil drain pipe 16 is connected to the oil drain port of the mixer 14.
[0021] The copper pipe 17 is cylindrical and located above the mixer 14. One end of the copper pipe 17 is sealed and the other end is open. The bottom wall of the other end of the copper pipe 17 is connected to the other end of the oil drain pipe 16, so that the fuel discharged from the mixer 14 enters the copper pipe 17 through the oil drain pipe 16.
[0022] Preferably, the inner wall of the copper tube 17 is coated with an anti-sticking layer, which can reduce the adhesion of residues after fuel carbonization.
[0023] In this embodiment, the atomizing nozzle 10 is disposed at one end of the copper tube 17, so that the fuel in the copper tube 17 is sprayed out through the atomizing nozzle 10. It should be understood that the burner core 20 of the fuel stove in this embodiment is at a certain distance from the nozzle 10, so that the atomized oil-gas mixture sprayed by the atomizing nozzle 10 enters the burner core 20 for combustion.
[0024] Preferably, the inner hole of one end of the copper tube 17 is provided with an internal thread, and one end of the atomizing nozzle 10 is provided with an extension portion, wherein the outer wall of the extension portion is provided with an external thread that is threadedly connected to the internal thread, so that the atomizing nozzle 10 and the copper tube 17 are connected by a threaded connection, which facilitates disassembly and replacement.
[0025] In this embodiment, an electric heater is installed in the copper pipe 17, so that the copper pipe 17 can be heated by the electric heater to heat the fuel and produce oil vapor.
[0026] Preferably, the electric heater is an electric heating wire, which is arranged around the outside of the copper tube 17. Of course, in other embodiments, the electric heater can also be an electric heating rod, which is located inside the copper tube 17. In addition, the electric heater in this embodiment is electrically connected to the controller of the fuel stove, and the controller of the fuel stove can control the electric heater to heat (the heating of the copper tube 17 by the electric heater is sufficient to turn the fuel inside the copper tube 17 into vapor).
[0027] One end of the second return oil pipe 18 is located on the top wall of the other end of the copper pipe 17, and the other end of the second return oil pipe 18 is connected to the first return oil pipe 15. It should be understood that the second return oil pipe 18 is located above the copper pipe 17, and the fuel oil and / or oil vapor in the copper pipe 17 can also flow back to the first return oil pipe 15 through the second return oil pipe 18, thereby flowing back to the oil tank.
[0028] It is worth noting that since the second return fuel line 18 is located above the copper line 17, when the fuel pump 11 is not working (i.e., after each ignition shutdown), the solenoid valve 12 opens, and the fuel in the first return fuel line 15 automatically flows to the fuel tank. At this time, the flowing fuel will form a siphon effect in the second return fuel line 18, which will cause outside air to enter the copper line 17 from the atomizing nozzle 10. That is, a small amount of cold air is automatically introduced into the copper line 17, and the residual heat of the copper line 17 dries the residual oil film, preventing carbon deposits from forming after cooling.
[0029] Preferably, the outer diameter of the oil drain pipe 16 is larger than the outer diameter of the second return oil pipe 18, and the orifice diameter of the oil drain pipe 16 is larger than the orifice diameter of the second return oil pipe 18.
[0030] In this embodiment, the mixer 14 includes an outer tube 141, a middle tube 142, and an inner tube 143.
[0031] The outer tube 141 is cylindrical, with one end sealed and the other end open. One end of the outer tube 141 has a first opening that serves as the return port of the mixer 14, and one end of the first return pipe 15 is connected to the first opening at one end of the outer tube 141.
[0032] The middle tube 142 is cylindrical and passes through the outer tube 141. One end of the middle tube 142 is sealed and the other end is open. The outer wall of the other end of the middle tube 142 is sealed to the inner wall of the other end of the outer tube 141, so that the outer wall of the middle tube 142 and the inner wall of the outer tube 141 form an annular inner cavity 140. The first opening at one end of the outer tube 141 communicates with the annular inner cavity 140, and the middle tube 142 has a second opening at one end that communicates with the annular inner cavity 140.
[0033] The inner tube 143 is cylindrical and is installed inside the middle tube 142. Both ends of the inner tube 143 are open. One end of the inner tube 143 is connected to the other end of the oil inlet pipe 13, and the other end of the inner tube 143 is connected to the second opening.
[0034] In this embodiment, the other end of the outer tube 141 is provided with a third opening that communicates with the annular inner cavity 140. The third opening serves as the oil drain port of the mixer 14, and one end of the oil drain pipe 16 is connected to the third opening.
[0035] It should be understood that when the fuel stove is burning normally, the fuel pump 11 pumps the fuel in the fuel tank to the inner tube 143 through the fuel inlet pipe 13. The fuel in the inner tube 143 is output from the other end of the inner tube 143 and enters the annular inner cavity 140 through the second opening. At this time, the fuel flows in the annular inner cavity 140 and is output from the top of the outer tube 141 to the drain pipe 16 (the solenoid valve 12 is closed). When the fuel stove is not burning, the solenoid valve 12 is opened, allowing the excess fuel in the annular inner cavity 140 to flow back to the fuel tank through the first return pipe 15.
[0036] Preferably, the distance between the sealing connection of the middle pipe 142 and the outer pipe 141 and the end of one end of the middle pipe 142 is less than the distance between the sealing connection of the middle pipe 142 and the outer pipe 141 and the first opening. That is, there is a certain distance between the end of one end of the middle pipe 142 and the first opening, so that there is enough space for the fuel delivered by the inner pipe 143 to the annular inner cavity 140.
[0037] In this embodiment, the diameter of the outer tube 141 is larger than the outer diameter of the middle tube 142, and the diameter of the middle tube 142 is larger than the outer diameter of the inner tube 143. The outer wall of the other end of the middle tube 142 extends with a cylindrical protrusion 1421, and the outer diameter of the protrusion 1421 is equal to the diameter of the hole of the outer tube 141.
[0038] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A fuel atomization structure for preventing carbon buildup based on copper tube heating, comprising an atomizing nozzle, an electric heater, a fuel pump, and a solenoid valve, characterized in that, Also includes: An oil inlet pipe, one end of which is used to connect to an oil tank, wherein the oil pump is installed in the oil inlet pipe; A mixer, the inlet of which is connected to the other end of the oil inlet pipe; The first return oil pipe has one end connected to the return oil port of the mixer and the other end connected to the oil tank, wherein the solenoid valve is installed in the first return oil pipe; An oil drain pipe, one end of which is connected to the oil drain port of the mixer; A cylindrical copper tube is positioned above the mixer, with one end sealed and the other end open. The bottom wall of the other end of the copper tube is connected to the other end of the oil drain pipe. The atomizing nozzle is disposed in one end of the copper tube, and the electric heater is disposed in the copper tube. The second return oil pipe has one end located on the top wall of the other end of the copper pipe, and the other end connected to the first return oil pipe.
2. The anti-carbon deposit fuel atomization structure according to claim 1, characterized in that, The outer diameter of the oil drain pipe is larger than the outer diameter of the second oil return pipe, and the orifice diameter of the oil drain pipe is larger than the orifice diameter of the second oil return pipe.
3. The anti-carbon-deposit fuel atomization structure according to claim 1, characterized in that, The electric heater is an electric heating wire, which is arranged around the outside of the copper tube.
4. The anti-carbon-deposit fuel atomization structure according to claim 1, characterized in that, The inner hole at one end of the copper tube is provided with an internal thread, and one end of the atomizing nozzle extends with an extension portion. The outer wall of the extension portion is provided with an external thread that is threadedly connected to the internal thread.
5. The anti-carbon-deposit fuel atomization structure according to claim 1, characterized in that, The mixer includes: The outer tube is cylindrical, with one end sealed and the other end open. One end of the outer tube is provided with a first opening, which serves as the oil return port of the mixer. One end of the first oil return tube is connected to the first opening at one end of the outer tube. The middle tube is cylindrical and passes through the outer tube. One end of the middle tube is sealed and the other end is open. The outer wall of the other end of the middle tube is sealed to the inner wall of the other end of the outer tube, so that the outer wall of the middle tube and the inner wall of the outer tube form an annular cavity. A first opening at one end of the outer tube communicates with the annular cavity, and a second opening at one end of the middle tube communicates with the annular cavity. The inner tube is cylindrical and is inserted inside the middle tube. Both ends of the inner tube are open. One end of the inner tube is connected to the other end of the oil inlet pipe, and the other end of the inner tube is connected to the second opening. The outer tube has a third opening at the other end that communicates with the annular inner cavity. The third opening serves as the oil drain port of the mixer, and one end of the oil drain pipe communicates with the third opening.
6. The anti-carbon deposit fuel atomization structure according to claim 5, characterized in that, The distance between the sealed connection between the middle tube and the outer tube and one end of the middle tube is less than the distance between the sealed connection between the middle tube and the outer tube and the first opening.
7. The anti-carbon-deposit fuel atomization structure according to claim 5, characterized in that, The outer tube has a larger diameter than the middle tube, the middle tube has a larger diameter than the inner tube, and the outer wall of the other end of the middle tube extends with a cylindrical protrusion, the outer diameter of which is equal to the diameter of the outer tube.
8. The anti-carbon-deposit fuel atomization structure according to claim 1, characterized in that, The inner wall of the copper tube is coated with an anti-sticking layer.