Energy-saving and consumption-reducing furnace core and combustor adopting same

Abstract

The utility model relates to an energy-saving and consumption-reducing furnace core which comprises a furnace core body, a furnace cavity is formed in the furnace core body, a fuel inlet and an air inlet are formed in the lower portion of the furnace cavity, a fire outlet is formed in the upper portion of the furnace cavity, a first fire distributing piece is arranged in the furnace cavity corresponding to the fuel inlet, and the first fire distributing piece is located above the fuel inlet and the air inlet. A second fire distributing piece is formed in the furnace cavity corresponding to the fire outlet, the first fire distributing piece is a cover body with an opening in the lower end, the lower end of the cover body is a mounting end, the upper end of the cover body is a closed buffer end, a first through hole and a second through hole are formed in the cover body between the buffer end and the mounting end, and the upper end of the first through hole is located above the upper end of the second through hole; the first through hole and the second through hole both penetrate from the upper surface to the lower surface of the cover body, and the buffer end is arranged corresponding to the fuel inlet. The utility model further provides a burner adopting the furnace core. According to the furnace core and the combustor, fuel can be combusted more sufficiently, the combustion efficiency is improved, and the structure is simple.

Description

Technical Field

[0001] This utility model relates to an energy-saving and consumption-reducing furnace core and a burner using the furnace core, belonging to the field of burners. Background Technology

[0002] Compression combustion furnaces are a type of tubular heating furnace. They use a fan to blow air into the combustion chamber, ignite the fuel using an igniter, and rapidly propel the flame outwards under the force of the air. For example, Chinese utility model patent CN212511121U, entitled "A High-Efficiency Combustion Furnace," discloses a furnace chamber, a core assembly, an atomizing assembly, a blower assembly, and an oil supply assembly. The core assembly includes a core body, an igniter, and a flame distribution frame mounted above the core body. The core body includes a stepped transition section with a hollow inner cavity and an upper open section connected sequentially from bottom to top. The hollow inner cavities of the upper open section and the transition section together form the combustion chamber of the core body. 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, a fuel nozzle fixedly installed on the shell, a conical burner bowl installed at the upper end of the shell, gasification and flame distribution blades provided in the inner cavity of 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 provided in an annular interval on the gasification and flame distribution plate, a second gasification and flame distribution groove formed between two adjacent protrusions in an annular interval on the bottom of the flame suppressor cap, an air inlet pipe provided on the side end of the shell, a fan connected to one end of the air inlet pipe, and an air inlet hole communicating with the air inlet pipe in the burner bowl.

[0003] While the burner in the aforementioned patent can make the fuel burn more completely to some extent, its structure still needs further improvement.

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

[0005] The purpose of this utility model is to provide a furnace core that enables more complete combustion of fuel, improves combustion efficiency, and has a simple structure. Another purpose of this utility model is to propose a burner that uses this furnace core.

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

[0007] An energy-saving and consumption-reducing furnace core includes a furnace core body, within which a furnace cavity is formed. The lower part of the furnace cavity is provided with a fuel inlet 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-diverting component is provided in the furnace cavity corresponding to the fuel inlet, located above the fuel inlet. A second fire-diverting component is formed in the furnace cavity corresponding to the fire outlet. The first fire-diverting 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 penetrate from the upper surface to the lower surface of the cover. The buffer end is provided corresponding to the fuel inlet.

[0008] In a preferred embodiment of this utility model, the inner diameter of the cover gradually decreases from top to bottom. 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.

[0009] In a preferred embodiment of this invention, the axis of the first through hole, the axis of the second through hole, and the axis of the fuel inlet are arranged in parallel.

[0010] In a preferred embodiment of this utility model, the inner wall of the furnace cavity forms a first support platform, and the mounting end is mounted on the first support platform.

[0011] As a preferred embodiment of the present invention, the second flame distribution component includes an annular flange and a reflux shroud formed on the central hole of the annular flange. An upwardly extending reflux chamber is formed inside the reflux shroud. The first through hole is provided corresponding to the reflux chamber. A plurality of flame outlet through holes are provided on the annular flange, and the plurality of flame outlet through holes are evenly distributed along the circumference of the annular flange.

[0012] In a preferred embodiment of this utility model, the inner wall of the furnace cavity is provided with a second support platform, and the annular flange is mounted on the second support platform.

[0013] In a preferred embodiment of this utility model, the lower end of the furnace core body forms a conical section, and the first air inlet and the second air inlet are located below the cover. The air inlet includes at least the first air inlet and the second air inlet located on the conical section. The upper end of the first air inlet is located above the upper end of the second air inlet. There are multiple first air inlets, which are evenly distributed along the circumference of the conical section. There are also multiple second air inlets, which are evenly distributed along the circumference of the conical section. Both the first air inlet and the second air inlet extend obliquely upward. The axis of the first air inlet is set towards one side, and the axis of the second air inlet is set towards the other side. Both the first air inlet and the second air inlet are located below the second through hole.

[0014] The burner includes a furnace chamber, a furnace core disposed within the furnace chamber, an oil supply assembly, and an air supply mechanism. The lower end of the furnace chamber is provided with an air supply hole, the air supply mechanism is mounted on the air supply hole, a mounting bracket is provided inside the air supply hole, the oil supply assembly is disposed on the mounting bracket, and the furnace core is the aforementioned furnace core.

[0015] In a preferred embodiment of this utility model, the fuel supply assembly includes an igniter, a connecting pipe, and an atomizing nozzle. The atomizing nozzle is installed on the connecting pipe and is positioned corresponding to the fuel inlet. The connecting pipe is installed on the mounting bracket. An air guide cover is also fitted onto the connecting pipe. The air guide cover includes an air guide plate and a downwardly extending annular baffle. The air guide plate has multiple heat dissipation holes corresponding to the atomizing nozzle. An air guide channel is formed between the annular baffle and the bottom of the furnace cavity.

[0016] In a preferred embodiment of the present invention, the upper end of the furnace core forms an outwardly extending support flange, which is mounted on the upper end of the furnace chamber, and the support flange is provided with multiple air-assisted holes corresponding to the inner cavity of the furnace chamber.

[0017] By adopting the technical solution of this utility model, the shroud provides space for the dispersion of atomized fuel. The atomized fuel sprayed from the fuel inlet touches the buffer end of the shroud and flows back downwards and disperses. Combined with the air intake at the fuel inlet and the blowing from the air inlet, the flame is ejected from the first through-hole. With the assistance of the second through-hole, the atomized fuel is not too concentrated and difficult to burn completely. The furnace core of this utility model enables more complete fuel combustion, achieving energy saving and consumption reduction. Preferably, this utility model uses the first and second air inlets, which are inclined and have different orientations. The first and second air inlets can form cyclones with different directions and push upwards, thereby dispersing the atomized fuel more fully and improving combustion efficiency. Preferably, through the structural design of the return shroud, the flames ejected upwards enter the return chamber, where they are further vaporized at high temperature and flow back downwards before being ejected from the flame outlet. This allows the atomized fuel to be more fully atomized and burned more completely, improving fuel utilization. The burner proposed in this utility model adopts an air intake from the bottom of the furnace cavity. Through the air guide cover, the air intake first turns downward and then is transported upward, so that the air intake blows the atomized fuel of the atomizing nozzle upward from the periphery to the center, so that the atomized fuel is transported upward more evenly, improving the combustion efficiency. The setting of heat dissipation holes can cool the atomizing nozzle, ensuring the service life of the atomizing nozzle and uniform spray. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a partial sectional view of the present invention.

[0020] Figure 3This is a schematic diagram of the structure of the cover 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 cavity and air guide cover in this utility model.

[0023] In the picture:

[0024] Furnace core 1 Furnace chamber 2

[0025] Air supply mechanism 3 Oil supply 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, air intake 15

[0030] First support platform 16 Second support platform 17

[0031] Support flange 18

[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] Nut 43 Air duct 44

[0040] Air guide cover 60, air guide plate 61

[0041] 62 Annular baffle 63 Heat dissipation hole

[0042] First Wind Gap 121 Second Wind Gap 122

[0043] Air outlet 201 Mounting bracket 202 Detailed Implementation

[0044] To better understand the technical solution of this utility model, the following description is provided in more detail with reference to the embodiments.

[0045] Reference Figures 1 to 5 An energy-saving and consumption-reducing furnace core includes a furnace core body 10, within which a furnace cavity is formed. The lower part of the furnace cavity has a fuel inlet 14 and an air inlet, while the upper part forms a fire outlet. In this invention, the furnace core body 10 includes a straight cylindrical portion 11 and a conical portion 12 located at the lower end of the straight cylindrical portion 11. The lower end of the conical portion 12 forms a base plate 13. The fuel inlet 14 is located at the center of the base plate 13, and the air inlet 14 is located on the conical portion 12. The straight cylindrical portion 11, the conical portion 12, and the base plate 13 are integrally formed and can be made of cast iron or stainless steel, etc. A first fire-diverting element is provided within the furnace cavity corresponding to the fuel inlet 14, located above the fuel inlet 14. A second fire-diverting element 30 is formed within the furnace cavity corresponding to the fire outlet. In this utility model, the first flame divider 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 is provided with 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 penetrate from the upper surface to the lower surface of the cover 20. The buffer end 23 is provided corresponding to the fuel inlet 14. More specifically, the buffer end 23 is located directly above the fuel inlet 14. The flames ejected from the fuel inlet can be directly ejected to the buffer end 23 and folded back downwards.

[0046] In a preferred embodiment of this invention, 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. There are multiple first through holes 21, evenly distributed along the circumference of the cover 20. Similarly, there are 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 and second through holes 21 are staggered vertically. The first through hole 21 primarily serves to guide the flame, while the second through hole 22 primarily serves to supply air and propel the flame.

[0047] As a preferred embodiment of this utility model, the axis of the first through hole 21, the axis of the second through hole 22, and the axis of the fuel inlet 14 are arranged in parallel, that is, the axes of the three are all arranged in the vertical direction.

[0048] 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.

[0049] 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, and the entire second flame distribution member 30 is cap-shaped. An upwardly extending return chamber 33 is formed within the return shroud 32. The first through hole 21 is provided corresponding to the return chamber 33. Flames ejected from the first through hole 21 enter the return chamber 33 upwards and then fold back downwards. 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. The multiple flame outlet holes 34 are evenly distributed along the circumference of the annular flange 31. In this embodiment, the flame outlet holes are conical holes, smaller at the top and larger at the bottom, with their axes along the vertical direction. In a preferred embodiment of this invention, a second support platform 17 is provided on the inner wall of the furnace cavity, and the annular flange 31 is mounted on the second support platform 17.

[0050] In this utility model, the air inlet can adopt the air inlet through-hole design of CN216010827U in the background art. As a preferred embodiment of this utility model, the lower end of the furnace core body 10 forms a conical part 12. The first air inlet 121 and the second air inlet 122 are arranged below the cover 20. The air inlet includes at least the first air inlet 121 and the second air inlet 122 arranged on the conical part 12. The upper end of the first air inlet 121 is located above the upper end of the second air inlet 122. There are multiple first air inlets 121, and the multiple first air inlets 121 are at the same horizontal position. The multiple first air inlets 121 are arranged along the conical part 12. The second air vents 122 are evenly distributed around the circumference of the cone portion 12. There are multiple second air vents 122, which are located at the same horizontal position. The multiple second air vents 122 are evenly distributed around the circumference of the cone portion 12. The first air vent 121 and the second air vent 122 both extend obliquely upward. Preferably, the first air vent 121 and the second air vent 122 are staggered. The axis of the first air vent 121 is set to one side, and the axis of the second air vent 122 is set to the other side. That is, the axes of a corresponding set of first air vents 121 and second air vents 122 are oriented differently. The first air vent 121 and the second air vent 122 are both located below the second through hole 22. Figure 2 In the diagram, dashed lines a and b roughly show the orientation of a corresponding set of first air vents 121 and second air vents 122. The air supply from multiple first air vents 121 can form a wind circle in one direction of rotation, and the air supply from multiple second air vents 122 can form another wind circle in another direction of rotation. Through the mixing and superposition of the wind circles, the atomized fuel can be further dispersed and pushed upward.

[0051] This utility model also proposes a burner, including a furnace chamber 2, a furnace core 1 disposed within the furnace chamber 2, an oil supply assembly 4, and an air supply mechanism 3. The furnace core 1 is the furnace core 1 described above. The oil supply assembly 4 is connected to an oil supply device. The air supply mechanism 3 can be, for example, a blower. The lower end of the furnace chamber 2 is provided with an air supply hole 201. The air supply mechanism 3 is mounted on the air supply hole 201. A mounting bracket 202 is provided inside the air supply hole 201. The oil supply assembly 4 is disposed on the mounting bracket 202. In an embodiment, the oil supply assembly 4 extends out from the air supply pipe of the air supply mechanism 3.

[0052] In a preferred embodiment of this utility model, the fuel supply 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 igniter 42 is positioned corresponding to the atomizing nozzle. The connecting pipe 41 is mounted on the mounting bracket 202. Specifically, the outer wall of the connecting pipe 41 is provided with external threads and a nut 43. The mounting bracket 202 has a mounting hole at its center. The connecting pipe 41 passes through the mounting hole and is limited by the nut 43, thereby mounting the connecting pipe 41 on the mounting bracket 202. An air guide cover 60 is also fitted onto the connecting pipe 41. The air guide cover 60 includes an air guide plate 61 and a downwardly extending annular baffle 62. The air guide plate 61 is positioned horizontally, and the annular baffle 62 is positioned vertically. The air guide plate 61 has multiple heat dissipation holes 63 corresponding to the atomizing nozzle. The multiple heat dissipation holes 63 are arranged circumferentially along the air guide plate 61. An air guide channel 44 is formed between the annular baffle 62 and the bottom of the furnace cavity.

[0053] As a preferred embodiment of the present invention, the upper end of the furnace core 1 forms an outwardly extending support flange 18, the support flange 18 is mounted on the upper end of the furnace chamber 2, and the support flange 18 is provided with a plurality of air-assisted holes 15 corresponding to the inner cavity of the furnace chamber 2. The air-assisted holes 15 are arranged in a vertical direction, and a fire-gathering ring 5 is also provided at the upper end of the support flange 18, with the air-assisted holes 15 disposed inside the fire-gathering ring 5.

[0054] 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. An energy-saving and consumption-reducing furnace core, comprising a furnace core body, a furnace cavity formed within the furnace core body, a fuel inlet for blowing fuel and an air inlet for auxiliary air supply at the lower part of the furnace cavity, a fire outlet at the upper part of the furnace cavity, a first fire divider located above the fuel inlet within the furnace cavity corresponding to the fuel inlet, and a second fire divider located within the furnace cavity corresponding to the fire outlet, characterized in that: The first fire element is a cover body with an open lower end. The lower end of the cover body is a mounting end, and the upper end of the cover body is a closed buffer end. The cover body is provided with 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 pass through the upper surface to the lower surface of the cover body. The buffer end is provided corresponding to the fuel inlet.

2. The energy saving and consumption reducing core as claimed in claim 1, wherein: From top to bottom, the inner diameter of the cover body gradually decreases. The first through hole is a plurality of first through holes, which are uniformly arranged along the circumference of the cover body. The second through hole is a plurality of second through holes, which are uniformly arranged along the circumference of the cover body.

3. The energy saving and consumption reducing core as claimed in claim 2, wherein: The axis of the first through hole, the axis of the second through hole, and the axis of the fuel inlet are arranged in parallel.

4. The energy saving and consumption reducing core as claimed in claim 3, wherein: The inner wall of the furnace cavity forms a first support platform, and the mounting end is arranged on the first support platform.

5. The energy saving and consumption reducing core as claimed in claim 1, wherein: The second fire element includes an annular flange and a backflow cover formed on the central hole of the annular flange. An upwardly extending backflow chamber is formed in the backflow cover. The first through hole is arranged corresponding to the backflow chamber. A plurality of fire outlet through holes are arranged on the annular flange and uniformly arranged along the circumference of the annular flange.

6. An energy saving and consumption reducing core as claimed in claim 5, wherein: The inner wall of the furnace cavity is provided with a second support platform, and the annular flange is arranged on the second support platform.

7. The energy saving and consumption reducing core as claimed in claim 1, wherein: The lower end of the furnace core body forms a tapered cylinder part. The air inlet includes at least a first air inlet and a second air inlet arranged on the tapered cylinder part. The first air inlet and the second air inlet are arranged below the cover body. The upper end of the first air inlet is located above the upper end of the second air inlet. The first air inlet is a plurality of first air inlets, which are uniformly arranged along the circumference of the tapered cylinder part. The second air inlet is a plurality of second air inlets, which are uniformly arranged along the circumference of the tapered cylinder part. Both the first air inlet and the second air inlet extend obliquely upward. The axis of the first air inlet is arranged toward one side, and the axis of the second air inlet is arranged toward the other side. Both the first air inlet and the second air inlet are arranged below the second through hole.

8. A burner comprising a furnace, a burner core disposed within the furnace, a fuel oil supply assembly, and an air supply mechanism, characterized by: The lower end of the furnace chamber is provided with an air supply hole, and the air supply mechanism is mounted on the air supply hole. The air supply hole is provided with a mounting bracket, and the oil supply assembly is arranged on the mounting bracket. The furnace core adopts the furnace core of any one of claims 1 to 7.

9. The burner of claim 8, wherein: The oil supply assembly includes an igniter, a connecting pipe, and an atomizing nozzle. The atomizing nozzle is mounted on the connecting pipe and arranged corresponding to the fuel inlet. The connecting pipe is mounted on the mounting bracket. A wind guide cover is further arranged on the connecting pipe. The wind guide cover includes a wind guide plate and a downwardly extending annular baffle. A plurality of heat dissipation holes are arranged on the wind guide plate corresponding to the atomizing nozzle. The annular baffle and the bottom of the furnace cavity form an air guide channel.

10. The burner of claim 9, wherein: The upper end of the furnace core forms an outwardly extending support flange, which is arranged on the upper end of the furnace chamber. The support flange is provided with a plurality of air assisting holes corresponding to the inner cavity of the furnace chamber.

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