Liquid fuel burner capable of automatically returning oil and intelligently supplementing oxygen

Abstract

The utility model discloses a liquid fuel burner capable of automatically returning oil and intelligently supplementing oxygen. The liquid fuel burner comprises a furnace end, an oil tank, an atomization gas mixing tank, an atomizer and an air blower. The oil tank comprises an oil filling port, an oil outlet and an oil return port; the atomization gas mixing box comprises a blower nozzle, an oil inlet, an oil outlet, a mist outlet and a gas mixing cavity; the atomizer is installed on the atomization gas mixing box, and liquid fuel at the oil inlet can be converted into mist and sent out towards the gas mixing cavity and the mist outlet. The blower can blow air to the gas mixing cavity; and the atomizer and the blower are electrically connected with the control center. According to the utility model, fuel oil at the oil discharge outlet can be automatically sucked and recycled into the oil tank to a certain extent, so that the air pressure in the oil tank is kept stable; by means of synchronous control of the atomizer and the air blower, the fuel suction atomization rate and the air supplement blowing rate can be conveniently and synchronously adjusted, and under different fire powers, the better air and liquid fuel ratio is kept for combustion.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid fuel burners, in particular to a liquid fuel burner with automatic oil return and intelligent oxygen supplement. Background Art

[0002] In addition to conventional gas combustion devices, there are also liquid fuel combustion devices on the market, such as mineral oils such as white oil. This liquid combustion device achieves combustion by atomizing and igniting the atomized gas. During the combustion process, the atomized white oil is easily liquefied into liquid fuel again and remains in the burner. A matching combustion structure needs to be set to ensure smooth combustion of white oil.

[0003] Existing liquid fuel combustion devices usually use fuel storage tanks. As the fuel is consumed, a certain negative pressure will be formed in the tank. When the negative pressure drops to a certain level, the fuel cannot be released. In the end, some of the fuel cannot be used and is wasted.

[0004] In addition, during the use of the oil burner, fuel will adhere to the inner walls of the burner and the inner walls of the ejector tube. Generally, the fuel will be drained to the auxiliary fuel tank through the oil drain pipe. If the oil drain pipe is blocked, the fuel will block the atomizing gas passage, and the concentration of the mixed gas at the burner nozzle will change, resulting in incomplete combustion, black smoke, and carbon deposits at the nozzle blocking the fire hole, causing deflagration.

[0005] In addition, the combustion of liquid fuel also requires the introduction of air for more complete combustion. If only the speed of liquid fuel being introduced into the burner is adjusted without adjusting the air supplement, it will be difficult to obtain combustion at a better air-fuel ratio, and the liquid fuel will be difficult to be fully burned. Utility Model Content

[0006] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes.

[0007] The technical solution adopted by an embodiment of the utility model to solve the technical problem is: a liquid fuel burner with automatic oil return and intelligent oxygen supplementation, comprising: a burner head, an oil tank, an atomizing gas mixing box, an atomizer and a blower;

[0008] The furnace head includes a furnace base and an ejector tube; the furnace base is provided with an air supply mixing chamber connected to the air outlet end of the ejector tube; the atomizing gas mixing box is provided at the air inlet end of the ejector tube;

[0009] The oil tank includes a refueling port, an oil outlet and an oil return port; the atomizing gas mixing box includes an air blast port, an oil inlet, an oil outlet, a mist outlet and an air mixing chamber; the air blast port is connected to the blower; the oil inlet is connected to the oil outlet; the oil outlet is connected to the oil return port; the mist outlet is connected to the air inlet end of the ejector pipe;

[0010] The atomizer is installed on the atomizing gas mixing box, and can convert the liquid fuel at the oil inlet into mist and send it toward the gas mixing chamber and the mist outlet; the blower can blow air toward the gas mixing chamber; the atomizer and the blower are electrically connected to the control center.

[0011] Optionally, the oil drain port is arranged below the atomizing gas mixing box.

[0012] Optionally, the atomizing and mixing box is provided with a card slot; the atomizer is a flat atomizing sheet structure, which can be carded in the card slot.

[0013] Optionally, a sealing rubber ring is provided on the outer edge of the atomizer.

[0014] Optionally, at least two atomizers and mist outlets are provided correspondingly, and gas can be supplied corresponding to a plurality of the ejection tubes.

[0015] Optionally, the atomizing gas mixing box is provided with an oil inlet synchronization chamber; the oil inlet synchronization chamber is connected to the oil inlet and the plurality of atomizers.

[0016] Optionally, the oil discharge port is connected to the oil return port via a pipeline, and a sealing steel ball is arranged in the connecting pipeline between the two, and the sealing steel ball can seal the oil discharge port.

[0017] Optionally, an oil guide groove is provided below the ejector tube.

[0018] Optionally, the oil outlet is located at the bottom end of the oil tank; the oil return port and the oil filling port are located above the oil tank; and the arrangement height of the oil outlet is higher than the arrangement height of the oil inlet.

[0019] The beneficial effects of the utility model are as follows: after the fuel tank is filled with fuel, the fuel filling port can be closed; then the atomizer can draw the fuel in the tank from the fuel outlet to the fuel inlet through the pipeline, and convert it into mist and send it toward the gas mixing chamber and the mist outlet; the blower can blow air toward the gas mixing chamber through the pipeline and the blowing port, so that the air and the mist liquid fuel are sent toward the ejector tube for combustion. The control center can conveniently adjust the fuel suction and atomization rate and the air supplement and blowing rate synchronously through synchronous control of the atomizer and the blower, and maintain a better air-liquid-fuel ratio for combustion under different firepower. In addition, the mist fuel can flow downward to the oil discharge port of the atomized gas mixing box after being attached to the ejector tube. When the amount of oil returned from the oil drain port is small, the oil drain port will not be blocked. At this time, the oil drain port is connected with the oil return port of the fuel tank, and air can be replenished to the fuel tank through the pipeline of the oil return port. No negative pressure will be formed, and it can be smoothly sucked into the atomization component for atomization; when the amount of oil returned from the oil drain port is large, the oil drain port is blocked. At this time, the oil return port cannot suck air into the fuel tank, and negative pressure will be formed in the fuel tank. When the negative pressure reaches a certain value, the fuel in the oil drain port can be sucked and reflux into the fuel tank, making the oil drain port unobstructed again; so that the atomization component can continue to smoothly suck the fuel from the fuel tank to work.

[0020] In the utility model, the fuel at the oil outlet can be automatically sucked back into the oil tank to a certain extent, so as to maintain the stability of the gas pressure in the oil tank. On the one hand, a high negative pressure will not be formed in the oil tank, which will waste the fuel. On the other hand, the fuel refluxed from the ejector pipe can be promptly recovered into the oil tank for reuse, which is not easy to block the gas passage. The fuel concentration at the ejector pipe can maintain a better value state, ensuring the stability of combustion. The overall structure connection is simple and ingenious, and it is easy to disassemble and assemble. In addition, by using the synchronous control of the atomizer and the blower, the rate of fuel suction and atomization and the rate of air supplement and blowing can be conveniently adjusted synchronously, so as to maintain a better air-liquid-fuel ratio for combustion under different firepower.

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 This is a schematic diagram of the structure of the liquid fuel burner of the utility model;

[0024] Figure 2 for Figure 1 Schematic diagram of the structure of the middle furnace head;

[0025] Figure 3 for Figure 1 Schematic diagram of the structure of the atomizing gas mixing box;

[0026] Figure 4 for Figure 3 Schematic diagram of the decomposition of the atomizing gas mixing box;

[0027] Figure 5 This is a schematic structural diagram of an atomizing gas mixing box according to another embodiment of the present invention;

[0028] Figure 6 for Figure 5 Schematic diagram of the decomposition of the atomizing mixing box.

[0029] Description of main component symbols:

[0030] 10. Burner head; 11. Burner base; 111. Oil guide groove; 12. Injection pipe; 20. Oil tank; 21. Oil filling port; 22. Oil outlet; 23. Oil return port; 30. Atomizing gas mixing box; 31. Air blast port; 32. Oil inlet; 33. Oil drain port; 34. Mist outlet; 35. Gas mixing chamber; 36. Card slot; 37. Oil inlet synchronization chamber; 40. Atomizer; 50. Blower. DETAILED DESCRIPTION

[0031] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0032] In the description of the present utility model, the meaning of "more than" is more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0033] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 a limitation on the present invention.

[0034] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0035] Example

[0036] Reference Figures 1 to 6 The utility model provides a liquid fuel burner with automatic oil return and intelligent oxygen supplementation, comprising: a burner head 10, an oil tank 20, an atomizing gas mixing box 30, an atomizer 40 and a blower 50;

[0037] The furnace head 10 includes a furnace base 11 and an ejector tube 12; the furnace base 11 is provided with an air supply mixing chamber connected to the air outlet end of the ejector tube 12; the atomizing gas mixing box 30 is provided at the air inlet end of the ejector tube 12;

[0038] The oil tank 20 includes a refueling port 21, an oil outlet 22 and an oil return port 23; the atomizing gas mixing box 30 includes an air blast port 31, an oil inlet 32, an oil discharge port 33, a mist outlet 34 and an air mixing chamber 35; the air blast port 31 is connected to the blower 50; the oil inlet 32 ​​is connected to the oil outlet 22; the oil discharge port 33 is connected to the oil return port 23; the mist outlet 34 is connected to the air inlet end of the ejector pipe 12;

[0039] The atomizer 40 is installed on the atomizing mixing box 30, which can convert the liquid fuel at the fuel inlet 32 ​​into mist and send it toward the mixing chamber 35 and the mist outlet 34; the blower 50 can blow air toward the mixing chamber 35; the atomizer 40 and the blower 50 are electrically connected to the control center.

[0040] In the utility model, after the fuel tank 20 is filled with fuel, the fuel filling port 21 can be closed; then the atomizer 40 can draw the fuel in the fuel tank 20 from the fuel outlet 22 to the fuel inlet 32 ​​through the pipeline, and convert it into mist and send it to the mixing chamber 35 and the mist outlet 34; the blower 50 can blow air to the mixing chamber 35 through the pipeline and the blowing port 31, so that the air and the mist liquid fuel are sent to the ejector tube 12 for combustion. The control center can conveniently adjust the fuel suction and atomization rate and the air supplement and blowing rate synchronously through the synchronous control of the atomizer 40 and the blower 50, so as to maintain the best air-liquid-fuel ratio for combustion under different firepower. In addition, the mist fuel can flow downward to the oil outlet 33 of the atomizing mixing box 30 after being attached to the ejector tube 12. When the amount of oil returned from the oil drain port 33 is small, the oil drain port 33 will not be blocked. At this time, the oil drain port 33 is connected with the oil return port 23 of the fuel tank 20, and air can be replenished to the fuel tank 20 through the pipeline of the oil return port 23. No negative pressure will be formed, and the air can be smoothly sucked into the atomizing component for atomization; when the amount of oil returned from the oil drain port 33 is large, the oil drain port 33 is blocked. At this time, the oil return port 23 cannot suck air into the fuel tank 20, and a negative pressure will be formed in the fuel tank 20. When the negative pressure reaches a certain value, the fuel in the oil drain port 33 can be sucked and refluxed into the fuel tank 20, so that the oil drain port 33 is unobstructed again, so that the atomizing component can continue to smoothly suck the fuel from the fuel tank 20 to work.

[0041] In the utility model, the fuel at the oil outlet 33 can be automatically sucked and recovered into the oil tank 20 to a certain extent, so as to maintain the stability of the air pressure in the oil tank 20. On the one hand, a high negative pressure will not be formed in the oil tank 20, which will waste the fuel. On the other hand, the fuel refluxed from the ejector pipe 12 can be promptly recovered into the oil tank 20 for reuse, and it is not easy to block the gas passage. The fuel concentration at the ejector pipe 12 can maintain a better value state, ensuring the stability of combustion. The overall structure is simple and ingenious to connect, and it is easy to disassemble and assemble. In addition, by using the synchronous control of the atomizer 40 and the blower 50, the rate of fuel suction and atomization and the rate of air supplement and blowing can be conveniently adjusted synchronously, and the better air-liquid-fuel ratio can be maintained for combustion under different firepower.

[0042] In this embodiment, the oil discharge port 33 is disposed below the atomizing gas mixing box 30 so as to collect the fuel oil refluxed from the burner head 10 and the atomizing gas mixing box 30 and recover it from the lowest point toward the fuel tank 20 .

[0043] Furthermore, the bottom of the atomizing mixing box may be arranged in an inverted triangle or arc shape that gradually narrows downward.

[0044] See also Figure 3 and Figure 4 The atomizing gas mixing box 30 is provided with a card slot 36; the atomizer 40 is a flat atomizing sheet structure, which can be carded in the card slot 36. The flat atomizer 40 can be conveniently carded and connected for assembly.

[0045] Furthermore, in order to maintain the sealing performance of the connection between the atomizer 40 and the oil inlet 32 ​​, a sealing rubber ring is sleeved on the outer edge of the atomizer 40 .

[0046] See also Figure 5 and Figure 6 For the two-ring fire and three-ring fire burner head 10 with multiple ejection tubes 12, multiple atomizers 40 and mist outlets 34 can be provided correspondingly. At least two atomizers 40 and mist outlets 34 are provided correspondingly, and gas can be supplied correspondingly to multiple ejection tubes 12.

[0047] Furthermore, in some embodiments, in order to facilitate the user to connect the oil outlet 22 of the oil tank 20, the atomizing mixing box 30 is provided with an oil inlet synchronization chamber 37; the oil inlet synchronization chamber 37 is connected to the oil inlet 32 ​​and the plurality of atomizers 40. Through a single oil inlet 32 ​​and the oil inlet synchronization chamber 37, oil can be supplied to the plurality of atomizers 40 at the same time.

[0048] In this embodiment, the oil discharge port 33 is connected to the oil return port 23 through a pipeline, and a sealing steel ball is arranged in the connecting pipeline between the two, and the sealing steel ball can block the oil discharge port 33. Through the sealing steel ball, the one-way conduction between the oil discharge port 33 and the oil return port 23 can be achieved. When negative pressure is not formed in the fuel tank 20, the sealing steel ball presses against the sealed oil discharge port 33 under the action of gravity; when negative pressure is formed in the fuel tank 20, the negative pressure sucks the fuel and the steel ball toward the oil return port 23, so that the oil discharge port 33 is conducted in the direction of the oil return port 23.

[0049] See also Figure 2 In some embodiments, an oil guide groove 111 is provided below the ejector tube 12 to facilitate the collection of fuel oil on the inner wall of the furnace base 11 and the ejector tube 12 and to flow back to the atomizing gas mixing box 30 for collection.

[0050] In this embodiment, the oil outlet 22 is located at the bottom of the oil tank 20; the oil return port 23 and the refueling port 21 are located above the oil tank 20; the arrangement height of the oil outlet 22 is higher than the arrangement height of the oil inlet 32. The arrangement height of the oil tank 20 and the oil outlet 22 is higher than the arrangement height of the oil inlet 32, and the fuel in the oil tank 20 can automatically flow toward the atomization assembly under the action of gravity.

[0051] Of course, the present invention is not limited to the above-mentioned embodiments, and technicians familiar with the field may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications and substitutions are all included in the scope defined by the claims of this application.

Claims

1. A liquid fuel burner with automatic oil return and intelligent oxygen supplementation, characterized in that: include: A burner head (10), an oil tank (20), an atomizing gas mixing box (30), an atomizer (40) and a blower (50); The furnace head (10) comprises a furnace base (11) and an ejector tube (12); the furnace base (11) is provided with an air supply mixing chamber connected to the air outlet end of the ejector tube (12); the atomizing air mixing box (30) is arranged at the air inlet end of the ejector tube (12); The oil tank (20) comprises a refueling port (21), an oil outlet (22) and an oil return port (23); the atomizing air mixing box (30) comprises an air blast port (31), an oil inlet (32), an oil discharge port (33), a mist outlet (34) and an air mixing chamber (35); the air blast port (31) is connected to the air blower (50); the oil inlet (32) is connected to the oil outlet (22); the oil discharge port (33) is connected to the oil return port (23); the mist outlet (34) is connected to the air inlet end of the ejector pipe (12); The atomizer (40) is installed on the atomizing gas mixing box (30) and can convert the liquid fuel at the oil inlet (32) into mist and send it toward the gas mixing chamber (35) and the mist outlet (34); the blower (50) can blow air toward the gas mixing chamber (35); the atomizer (40) and the blower (50) are electrically connected to a control center.

2. The liquid fuel burner with automatic oil return and intelligent oxygen supplementation according to claim 1 is characterized in that: The oil discharge port (33) is arranged below the atomizing gas mixing box (30).

3. The liquid fuel burner with automatic oil return and intelligent oxygen supplementation according to claim 1 is characterized in that: The atomizing gas mixing box (30) is provided with a card slot (36); the atomizer (40) is a flat atomizing sheet structure and can be card-mounted in the card slot (36).

4. The liquid fuel burner with automatic oil return and intelligent oxygen supplementation according to claim 3 is characterized in that: The outer edge of the atomizer (40) is sleeved with a sealing rubber ring.

5. The liquid fuel burner with automatic oil return and intelligent oxygen supplementation according to claim 1 is characterized in that: At least two atomizers (40) and mist outlets (34) are provided correspondingly, and gas can be supplied to a plurality of the ejection tubes (12).

6. The liquid fuel burner with automatic oil return and intelligent oxygen supplementation according to claim 5 is characterized in that: The atomizing gas mixing box (30) is provided with an oil inlet synchronization chamber (37); the oil inlet synchronization chamber (37) is connected to the oil inlet (32) and the plurality of atomizers (40).

7. The liquid fuel burner with automatic oil return and intelligent oxygen supplementation according to claim 1 is characterized in that: The oil discharge port (33) is connected to the oil return port (23) via a pipeline, and a sealing steel ball is arranged in the connecting pipeline between the two, and the sealing steel ball can seal the oil discharge port (33).

8. The liquid fuel burner with automatic oil return and intelligent oxygen supplementation according to claim 1 is characterized in that: An oil guide groove (111) is provided below the ejector tube (12).

9. The liquid fuel burner with automatic oil return and intelligent oxygen supplementation according to claim 1 is characterized in that: The oil outlet (22) is located at the bottom end of the oil tank (20); the oil return port (23) and the oil filling port (21) are located above the oil tank (20); and the arrangement height of the oil outlet (22) is higher than the arrangement height of the oil inlet (32).

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