Novel liquid burner

Abstract

The utility model relates to a novel liquid burner which comprises a hearth, a furnace core, an oil injection assembly and an air supply hole formed in the hearth, the furnace core comprises a furnace core body, a furnace cavity is formed in the furnace core body, a fuel inlet used for blowing fuel and an air inlet used for assisting air supply are formed in the lower portion of the furnace cavity, and a fire outlet is formed in the upper portion of the furnace cavity. A first fire distribution piece is arranged in the furnace cavity corresponding to the fuel inlet and located above the fuel inlet, a second fire distribution piece is formed in the furnace cavity corresponding to the fire outlet, the air supply hole is formed in the bottom of the hearth, an air guide cover is arranged in the hearth corresponding to the air supply hole, and an air guide channel is formed between the air guide cover and the bottom of the hearth. An air guide cylinder is arranged between the air guide cover and the lower end of the furnace core, the oil injection assembly extends into the air guide cylinder, the upper end of the air guide cylinder is arranged corresponding to the fuel inlet, and air blowing holes are formed in the cylinder wall of the air guide cylinder and penetrate from the outer wall to the inner wall of the air guide cylinder. According to the utility model, the atomization effect of oil liquid can be further improved, and the combustion efficiency is improved.

Description

Technical Field

[0001] This utility model relates to a novel liquid burner. Background Technology

[0002] A compression combustion furnace is a type of tubular heating furnace. It uses a fan to blow air into the combustion chamber, ignites the fuel using an igniter, and rapidly propels the flame outwards under the force of the air. For example, Chinese utility model patent CN216010827U, entitled "A Liquid Fuel Burner with Complete Combustion," discloses a liquid fuel burner with complete combustion, comprising: a hollow shell with a fuel nozzle fixedly installed thereon; a conical burner bowl installed at the upper end of the shell; gasification and flame distribution blades within the burner bowl; a gasification and flame distribution plate and a flame suppressor cap installed at the upper end of the burner bowl; a first gasification and flame distribution groove arranged annularly at equal intervals on the gasification and flame distribution plate; and a second gasification and flame distribution groove formed between adjacent protrusions at equal intervals on the bottom of the flame suppressor cap. An air inlet pipe is provided on the side of the shell, one end of which is connected to a fan. The burner bowl has an air inlet hole communicating with the air inlet pipe.

[0003] The burner in the aforementioned patent still has some shortcomings. For example, the air from the fan enters through the air inlet of the burner bowl, the liquid fuel is injected from the bottom of the burner bowl, and the liquid fuel is sprayed out from the nozzle and then further atomized and dispersed after entering the burner bowl. The dispersion path is relatively short, the liquid atomization and dispersion effect is relatively poor, and the combustion efficiency needs to be further improved.

[0004] Based on the above issues, the applicant conducted research, which led to this case. Utility Model Content

[0005] The purpose of this invention is to provide a novel liquid burner that can improve combustion efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A novel liquid burner includes a furnace chamber, a core disposed within the furnace chamber, an oil injection assembly, and an air inlet disposed on the furnace chamber. The core includes a core body, within which a furnace cavity is formed. The lower part of the furnace cavity has a fuel inlet for blowing fuel and an air inlet for auxiliary air supply. The upper part of the furnace cavity forms a flame outlet. A first flame divider is disposed within the furnace cavity corresponding to the fuel inlet, located above the fuel inlet. A second flame divider is disposed within the furnace cavity corresponding to the flame outlet. The air inlet is disposed at the bottom of the furnace chamber. An air guide cover is disposed within the furnace chamber corresponding to the air inlet, forming an air guide channel between the air guide cover and the bottom of the furnace chamber. An air guide duct is disposed between the air guide cover and the lower end of the core. The oil injection assembly extends into the air guide duct. The upper end of the air guide duct is disposed corresponding to the fuel inlet. Air blowing holes are disposed on the wall of the air guide duct, extending from the outer wall to the inner wall of the air guide duct.

[0008] In a preferred embodiment of this utility model, there are multiple air blowing holes, which are evenly distributed along the circumference of the air guide tube in the lower middle part of the air guide tube.

[0009] As a preferred embodiment of the present invention, the air guide cover includes an air guide plate and a downwardly extending annular baffle. The annular baffle is disposed around the periphery of the air guide plate, and multiple heat dissipation holes are provided on the air guide plate corresponding to the oil spraying assembly.

[0010] In a preferred embodiment of this utility model, the air inlet is provided with a mounting bracket, the fuel injection assembly includes an igniter, a connecting pipe and an atomizing nozzle, the atomizing nozzle is mounted on the connecting pipe and is set corresponding to the fuel inlet, the igniter extends into the air guide tube, the connecting pipe is mounted on the mounting bracket, and the air guide plate is sleeved on the connecting pipe.

[0011] As a preferred embodiment of this utility model, the lower end of the furnace core is provided with a positioning groove, and the upper end of the air guide tube is embedded in the positioning groove.

[0012] As a preferred embodiment of this utility model, the outer wall of the connecting pipe is provided with an external thread, and the mounting bracket is provided with a first internal thread hole that mates with the external thread.

[0013] As a preferred embodiment of this utility model, the center of the air guide plate is provided with a second internal thread hole that mates with the external thread.

[0014] As a preferred embodiment of the present invention, the furnace core body includes a straight cylindrical section, a conical section, and a bottom plate arranged from top to bottom. The air inlet includes an air-assisted passage hole. Both the conical section and the bottom plate are provided with air-assisted passage holes. The air-assisted passage holes located in the conical section are arranged in a row, and the row of air-assisted passage holes is arranged along the circumference of the conical section.

[0015] In a preferred embodiment of this utility model, the air-assisted through hole located on the bottom plate is located around the fuel inlet and inside the air guide tube.

[0016] In a preferred embodiment of this utility model, the first flame distribution component is a cover with an open lower end. The lower end of the cover is a mounting end, and the upper end of the cover is a closed buffer end. The cover has a first through hole and a second through hole between the buffer end and the mounting end. The upper end of the first through hole is located above the upper end of the second through hole. Both the first through hole and the second through hole extend from the upper surface to the lower surface of the cover. The buffer end is set corresponding to the fuel inlet. From top to bottom, the inner diameter of the cover gradually decreases. There are multiple first through holes, which are evenly distributed along the circumference of the cover. There are also multiple second through holes, which are evenly distributed along the circumference of the cover. The second flame distribution component includes an annular flange and a return shroud formed on the central hole of the annular flange. An upwardly extending return chamber is formed inside the return shroud. The first through holes are set corresponding to the return chamber. Multiple flame outlet holes are provided on the annular flange, which are evenly distributed along the circumference of the annular flange.

[0017] By adopting the technical solution of this utility model, the air supply hole is set at the bottom of the furnace. In use, the fan blows air from the air supply hole. After the air blows to the air guide cover, it turns downward and moves upward through the air guide channel and passes through the air blowing hole of the air guide tube. The oil sprayed by the oil injection component is further dispersed by the air blowing hole and transported upward for combustion, and then enters the furnace core. Compared with blowing air directly through the furnace core, this utility model can further improve the atomization effect of the oil and improve the combustion efficiency. Attached Figure Description

[0018] Figure 1 This is a partial sectional view of the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the structure of the first fire-distributing component of the cover body of this utility model.

[0021] Figure 4 This is a schematic diagram of the structure of the second fire-distributing component in this utility model.

[0022] Figure 5 This is a partial cross-sectional view of the furnace and air guide cover in this utility model.

[0023] In the picture:

[0024] Furnace core 1 Furnace chamber 2

[0025] Fan 3, Oil Injection Assembly 4

[0026] Fire Circle 5

[0027] Furnace core body 10 Straight cylinder section 11

[0028] Conical section 12, base plate 13

[0029] Fuel inlet 14 Auxiliary air vent 15

[0030] First support platform 16 Second support platform 17

[0031] Support flange 18, air intake hole 19

[0032] Cover 20 First through hole 21

[0033] Second through hole 22 Buffer end 23

[0034] Installation end 24

[0035] Second fire component 30

[0036] Annular flange 31 Return shroud 32

[0037] Reflux chamber 33, ignition port 34

[0038] Connecting pipe 41 Igniter 42

[0039] External thread 43, air guide channel 44

[0040] First internal threaded hole 45 Second internal threaded hole 46

[0041] Air guide cover 60, air guide plate 61

[0042] 62 Annular baffle 63 Heat dissipation hole

[0043] Air guide tube 70, air blowing hole 71

[0044] Mounting bracket 201, air outlet 202 Detailed Implementation

[0045] To better understand the technical solution of this utility model, the following description is provided in more detail with reference to the embodiments.

[0046] Reference Figures 1 to 5This utility model describes the orientation of the burner in its normal installed state. A novel liquid burner includes a furnace 2, a furnace core 1 disposed within the furnace 2, an oil injection assembly 4, and an air inlet 202 disposed on the furnace 2. The furnace core 1 is mounted on the upper end of the furnace 2 and extends into the furnace 2. The oil injection assembly 4 is used to spray atomized oil and ignite it; its structure can be directly selected from existing technologies. In use, the air inlet 202 is connected to the air outlet of a fan 3, and air is supplied to the air inlet 202 by the fan 3. In this utility model, the furnace core 1 includes a furnace core body 10, and a furnace cavity is formed inside the furnace core body 10. The lower part of the furnace cavity is provided with a fuel inlet 14 for blowing fuel and an air inlet for auxiliary air supply. The upper part of the furnace cavity forms a fire outlet. A first fire divider is provided in the furnace cavity corresponding to the fuel inlet 14. The first fire divider is located above the fuel inlet 14. A second fire divider 30 is formed in the furnace cavity corresponding to the fire outlet. A fire-gathering ring 5 is provided on the second fire divider 30 to gather the flames.

[0047] In this invention, the air inlet 202 is located at the bottom of the furnace chamber 2, specifically on the central axis of the bottom. A guide cover 60 is provided inside the furnace chamber 2 corresponding to the air inlet 202, positioned directly above it. An air guide channel 44 is formed between the guide cover 60 and the bottom of the furnace chamber 2. An air guide duct 70 is provided between the guide cover 60 and the lower end of the furnace core 1, with the lower end of the duct 70 abutting against the upper end of the guide cover 60 and the upper end extending to the lower end of the furnace core 1. The oil injection assembly 4 extends into the air guide duct 70 to provide oil and ignition. The upper end of the air guide duct 70 is positioned corresponding to the fuel inlet 14. An air blowing hole 71 is provided on the wall of the air guide duct 70, extending from the outer wall to the inner wall. As a preferred embodiment of this utility model, there are multiple air blowing holes 71, and the multiple air blowing holes 71 are evenly distributed in the lower middle part of the air guide 70 along the circumference of the air guide 70.

[0048] As a preferred embodiment of this utility model, the air guide cover 60 includes an air guide plate 61 and a downwardly extending annular baffle 62. The air guide plate 61 is arranged in a horizontal direction, and the annular baffle 62 is arranged around the air guide plate 61. A plurality of heat dissipation holes 63 are provided on the air guide plate 61 corresponding to the oil injection assembly 4. Part of the upward-blown air directly enters the air guide tube 70 through the heat dissipation holes 63 to cool down the oil injection assembly 4 and improve the service life of the oil injection assembly 4.

[0049] In a preferred embodiment of this invention, a mounting bracket 201 is provided inside the air inlet 202. The mounting bracket 201 is arranged horizontally, and can be machined by drilling holes in the bottom of the furnace 2. The fuel injection assembly 4 includes an igniter 42, a connecting pipe 41, and an atomizing nozzle (not shown in the figure). The atomizing nozzle is mounted on the connecting pipe 41 and is positioned corresponding to the fuel inlet 14. The atomizing nozzle and the connecting pipe 41 can be an integral structure or a separate structure. In this embodiment, a separate structure is used, with the nozzle positioned at the upper end of the connecting pipe 41. The igniter 42 can be located outside the furnace 2 and extend into the air guide duct 70. The connecting pipe 41 is mounted on the mounting bracket 201, and the air guide plate 61 is sleeved on the connecting pipe 41. In a preferred embodiment of this invention, the outer wall of the connecting pipe 41 is provided with an external thread 43, and the mounting bracket 201 is provided with a first internal threaded hole 45 that mates with the external thread 43. In a preferred embodiment of this invention, the air guide plate 61 has a second internal threaded hole 46 at its center that mates with the external thread 43. During assembly, the connecting pipe 41 is threaded into the first internal threaded hole 45 of the mounting bracket 201 to fix the connecting pipe 41, and the air guide plate 61 is threaded onto the connecting pipe 41 through the second internal threaded hole 46 to fix the air guide plate 61.

[0050] As a preferred embodiment of this utility model, the lower end of the furnace core 1 is provided with a positioning groove, which is annular, and the upper end of the air guide duct 70 is embedded in the positioning groove.

[0051] As a preferred embodiment of the present invention, the furnace core body 10 includes a straight cylindrical section 11, a conical section 12, and a bottom plate 13 arranged from top to bottom. The air inlet includes an air-assisted passage hole 19. Both the conical section 12 and the bottom plate 13 are provided with air-assisted passage holes 19. The air-assisted passage holes 19 located in the conical section 12 are arranged in a row, and the row of air-assisted passage holes 19 is arranged along the circumference of the conical section 12. Preferably, the air-assisted passage holes 19 are arranged obliquely upward.

[0052] As a preferred embodiment of this utility model, the air-assisted through hole 19 located on the bottom plate 13 is located around the fuel inlet 14 and inside the air guide duct 70, that is, the air-assisted through hole 19 is located within the inner circle of the air guide duct 70. There are multiple air-assisted through holes 19, and the multiple air-assisted through holes 19 are arranged along the circumference of the bottom plate 13.

[0053] In a preferred embodiment of this utility model, the first flame distribution component is a cover 20 with an open lower end. The lower end of the cover 20 is a mounting end 24, and the upper end of the cover 20 is a closed buffer end 23. The cover 20 has a first through hole 21 and a second through hole 22 between the buffer end 23 and the mounting end 24. The upper end of the first through hole 21 is located above the upper end of the second through hole 22. Both the first through hole 21 and the second through hole 22 extend from the upper surface to the lower surface of the cover 20. The buffer end 23 is provided corresponding to the fuel inlet 14. With this structure, the cover 20 provides space for the atomized fuel to disperse. The atomized fuel sprayed from the fuel inlet 14 touches the buffer end 23 of the cover 20 and flows back and disperses downward. With the air intake of the fuel inlet 14 and the blowing of the air inlet, the flame is sprayed out from the first through hole 21. With the assistance of the air from the second through hole 22, the atomized fuel will not be too concentrated and difficult to burn completely. The furnace core 1 can make the fuel burn more completely, achieving the effect of energy saving and consumption reduction. In this embodiment, the inner diameter of the cover 20 gradually decreases from top to bottom, and the entire cover 20 is shaped like an inverted bowl or hemisphere. In this invention, there are multiple first through holes 21, evenly distributed along the circumference of the cover 20; and multiple second through holes 22, also evenly distributed along the circumference of the cover 20. In this embodiment, the diameter of the first through hole 21 is slightly smaller than the diameter of the second through hole 22. The first through hole 21 and the second through hole 22 are staggered vertically. The first through hole 21 mainly serves to guide the flame, while the second through hole 22 mainly serves to supply air and propel the flame. In this embodiment, the axes of the first through hole 21, the second through hole 22, and the fuel inlet 14 are parallel, meaning all three axes are vertical.

[0054] In a preferred embodiment of this utility model, the inner wall of the furnace cavity forms a first support platform 16, and the mounting end 24 is mounted on the first support platform 16.

[0055] In a preferred embodiment of this invention, the second flame distribution member 30 includes an annular flange 31 and a return shroud 32 formed on the central hole of the annular flange 31. An upwardly extending return chamber 33 is formed within the return shroud 32, and the first through hole 21 is correspondingly provided in the return chamber 33. Multiple flame outlet holes 34 are provided on the annular flange 31, extending from the upper surface to the lower surface of the annular flange 31. These multiple flame outlet holes 34 are evenly distributed along the circumference of the annular flange 31. In this embodiment, the flame outlet holes 34 are tapered holes, smaller at the top and larger at the bottom, with their axis along the vertical direction. With this structure, the flame ejected from the first through hole 21 enters the return chamber 33 upwards and then veers downwards. The upward-ejected flame enters the return chamber 33, where it is further vaporized at high temperature and flows downwards before being ejected from the flame outlet holes 34. This allows the atomized fuel to be more fully atomized and combusted, improving fuel utilization. As a preferred embodiment of the present invention, the inner wall of the furnace cavity is provided with a second support platform 17, and the annular flange 31 is mounted on the second support platform 17.

[0056] In a preferred embodiment of the present invention, the upper end of the furnace core 1 forms an outwardly extending support flange 18, which is mounted on the upper end of the furnace chamber 2. The support flange 18 is provided with a plurality of auxiliary air holes 15 corresponding to the inner cavity of the furnace chamber 2. The auxiliary air holes 15 are arranged in a vertical direction. The fire-gathering ring 5 is arranged on the support flange 18, and the auxiliary air holes 15 are arranged inside the fire-gathering ring 5.

[0057] The scope of protection of this utility model is not limited to this embodiment. Any similar modifications made to it are considered to be within the scope of protection of this utility model.

Claims

1. A novel liquid burner, comprising a furnace chamber, a core disposed within the furnace chamber, an oil injection assembly, and an air inlet disposed on the furnace chamber, wherein the core comprises a core body, a furnace cavity is formed within the core body, a fuel inlet for blowing fuel and an air inlet for auxiliary air supply are provided at the lower part of the furnace cavity, a flame outlet is formed at the upper part of the furnace cavity, a first flame divider is provided in the furnace cavity corresponding to the fuel inlet, the first flame divider is located above the fuel inlet, and a second flame divider is formed in the furnace cavity corresponding to the flame outlet, characterized in that: The air supply hole is located at the bottom of the furnace. A guide cover is provided in the furnace corresponding to the air supply hole. An air guide channel is formed between the guide cover and the bottom of the furnace. An air guide tube is provided between the guide cover and the lower end of the furnace core. The oil injection assembly extends into the air guide tube. The upper end of the air guide tube is located corresponding to the fuel inlet. Air blowing holes are provided on the tube wall of the air guide tube, and the air blowing holes penetrate from the outer wall to the inner wall of the air guide tube.

2. The novel liquid burner as described in claim 1, characterized in that: The air blowing holes are multiple, and the multiple air blowing holes are evenly distributed along the circumference of the air guide tube in the lower middle part of the air guide tube.

3. The novel liquid burner as described in claim 1, characterized in that: The air guide cover includes an air guide plate and a downwardly extending annular baffle. The annular baffle is disposed around the periphery of the air guide plate, and multiple heat dissipation holes are provided on the air guide plate corresponding to the oil spraying assembly.

4. A novel liquid burner as described in claim 3, characterized in that: The air inlet is provided with a mounting bracket. The fuel injection assembly includes an igniter, a connecting pipe, and an atomizing nozzle. The atomizing nozzle is mounted on the connecting pipe and is set corresponding to the fuel inlet. The igniter extends into the air guide tube. The connecting pipe is mounted on the mounting bracket. The air guide plate is sleeved on the connecting pipe.

5. A novel liquid burner as described in claim 4, characterized in that: The lower end of the furnace core is provided with a positioning groove, and the upper end of the air guide tube is embedded in the positioning groove.

6. A novel liquid burner as described in claim 5, characterized in that: The outer wall of the connecting pipe is provided with external threads, and the mounting bracket is provided with a first internal thread hole that mates with the external threads.

7. A novel liquid burner as described in claim 6, characterized in that: The air guide plate has a second internal thread hole at its center that mates with the external thread.

8. A novel liquid burner as described in claim 2, characterized in that: The furnace core body includes a straight cylindrical section, a conical section, and a bottom plate arranged from top to bottom. The air inlet includes an air-assisted passage. Air-assisted passages are provided on both the conical section and the bottom plate. The air-assisted passages on the conical section are arranged in a row, and the row of air-assisted passages is arranged along the circumference of the conical section.

9. A novel liquid burner as described in claim 8, characterized in that: The air intake hole located on the bottom plate is located around the fuel inlet and inside the air duct.

10. A novel liquid burner as described in claim 1, characterized in that: The first ignition distribution element is a cover with an open bottom. The lower end of the cover is the mounting end, and the upper end of the cover is a closed buffer end. The cover has a first through hole and a second through hole between the buffer end and the mounting end. The upper end of the first through hole is located above the upper end of the second through hole. Both the first through hole and the second through hole extend from the upper surface to the lower surface of the cover. The buffer end is set corresponding to the fuel inlet. From top to bottom, the inner diameter of the cover gradually decreases. There are multiple first through holes, which are evenly distributed along the circumference of the cover. There are also multiple second through holes, which are evenly distributed along the circumference of the cover. The second ignition distribution element includes an annular flange and a return shroud formed on the central hole of the annular flange. An upwardly extending return chamber is formed inside the return shroud. The first through holes are set corresponding to the return chamber. Multiple flame outlet holes are provided on the annular flange, which are evenly distributed along the circumference of the annular flange.

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