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

Abstract

The invention 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, and a first fire distributing piece is arranged in the furnace cavity corresponding to the fuel inlet and 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 invention 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] The invention relates to an energy-saving and consumption-reducing furnace core and a burner using the furnace core, belonging to the field of burners. Background Art

[0002] The compression combustion furnace is a type of tubular heating furnace. It blows air into the combustion pool through a fan, ignites the fuel through an igniter, and quickly pushes out the flame under the encouragement of the air. For example, in the Chinese utility model patent with the authorization announcement number CN212511121U and the name "A High-efficiency Combustion Furnace", a furnace, a furnace core assembly, an atomization assembly, an air blast assembly and an oil supply assembly are disclosed. The furnace core assembly includes a furnace core body, an igniter and a fire distribution rack mounted above the furnace core body. The furnace core body includes a transition section and an upper open section with a hollow inner cavity connected in sequence from bottom to top, which are distributed in a stepped manner. The upper open section and the hollow inner cavity of the transition section together form the combustion pool of the furnace core body. For another example, in the Chinese utility model patent with authorization announcement number CN216010827U and titled “A Liquid Fuel Burner with Complete Combustion”, a liquid fuel burner with complete combustion is disclosed, comprising: a hollow shell, on which a fuel nozzle is fixedly mounted, a conical burner bowl is mounted on the upper end of the shell, the inner cavity of the burner bowl is provided with a gasification fire-dividing blade, a gasification fire-dividing plate and a pressure cap are mounted on the upper end of the burner bowl, the gasification fire-dividing plate is provided with first gasification fire-dividing grooves at equal intervals in an annular manner, the bottom of the pressure cap is provided with protrusions at equal intervals in an annular manner, and a second gasification fire-dividing groove is formed between two adjacent protrusions, an air inlet duct is provided at the side end of the shell, a fan is connected to one end of the air inlet duct, and the burner bowl is provided with an air inlet through-hole connected to the air inlet duct.

[0003] Although the burner of the above patent can make the fuel burn more completely to a certain extent, its structure needs to be further improved.

[0004] Based on the above issues, the applicant conducted research, which resulted in this case. Summary of the invention

[0005] An object of the present invention is to provide a furnace core which can make fuel burn more completely, improve combustion efficiency and has a simple structure. Another object of the present invention is to provide a burner using the furnace core.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A furnace core for energy saving and consumption reduction comprises a furnace core body, wherein a furnace cavity is formed in the furnace 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 fire outlet is formed at the upper part of the furnace cavity, a first fire dividing piece is provided in the furnace cavity corresponding to the fuel inlet, the first fire dividing piece is located above the fuel inlet, a second fire dividing piece is formed in the furnace cavity corresponding to the fire outlet, the first fire dividing piece is a cover body with an opening at 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, 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, the first through hole and the second through hole both penetrate from the upper surface of the cover body to the lower surface, and the buffer end is provided corresponding to the fuel inlet.

[0008] As a preferred embodiment of the present invention, the inner diameter of the cover body gradually decreases from top to bottom, there are multiple first through holes, and the multiple first through holes are evenly distributed along the circumference of the cover body, and there are multiple second through holes, and the multiple second through holes are evenly distributed along the circumference of the cover body.

[0009] As a preferred embodiment of the present 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] As a preferred embodiment of the present invention, 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 fire distribution part includes an annular flange and a return flow cover formed on the center hole of the annular flange, and an upwardly extending return flow chamber is formed in the return flow cover. The first through hole is arranged corresponding to the return flow chamber, and a plurality of fire outlet through holes are provided on the annular flange. The plurality of fire outlet through holes are evenly distributed along the circumference of the annular flange.

[0012] As a preferred embodiment of the present invention, a second supporting platform is provided on the inner wall of the furnace cavity, and the annular flange is mounted on the second supporting platform.

[0013] As a preferred embodiment of the present invention, the lower end of the furnace core body forms a conical cylinder portion, the first air port and the second air port are arranged below the cover body, the air inlet at least includes the first air port and the second air port arranged on the conical cylinder portion, the upper end of the first air port is located above the upper end of the second air port, there are multiple first air ports, and the multiple first air ports are evenly arranged along the circumference of the conical cylinder portion, there are multiple second air ports, and the multiple second air ports are evenly arranged along the circumference of the conical cylinder portion, the first air port and the second air port both extend obliquely upward, the axis of the first air port is set toward one side, and the axis of the second air port is set toward the other side, and the first air port and the second air port are both set below the second through hole.

[0014] The burner comprises a furnace, a furnace core arranged in the furnace, an oil supply assembly and an air supply mechanism. An air supply hole is arranged at the lower end of the furnace, the air supply mechanism is installed on the air supply hole, a mounting frame is arranged in the air supply hole, the oil supply assembly is arranged on the mounting frame, and the furnace core adopts the above-mentioned furnace core.

[0015] As a preferred embodiment of the present invention, the oil supply assembly includes an igniter, a connecting pipe and an atomizing nozzle. The atomizing nozzle is installed on the connecting pipe and is arranged corresponding to the fuel inlet. The connecting pipe is installed on the mounting frame. An air guide cover is also provided on the connecting pipe. The air guide cover includes an air guide plate and a downwardly extending annular baffle. A plurality of heat dissipation holes are provided on the air guide plate corresponding to the atomizing nozzle. An air guide channel is formed between the annular baffle and the bottom of the furnace cavity.

[0016] As a preferred embodiment of the present invention, a support flange extending outward is formed at the upper end of the furnace core, the support flange is mounted at the upper end of the furnace, and a plurality of air-assisting holes are arranged on the support flange corresponding to the inner cavity of the furnace.

[0017] After adopting the technical solution of the present invention, the cover body provides a space for the atomized fuel to disperse. The atomized fuel sprayed from the fuel inlet touches the buffer end of the cover body and flows back and disperses downward. With the blowing of the fuel inlet and the air inlet, the flame sprays out from the first through hole. In addition, with the wind assistance of the second through hole, the atomized fuel will not be too concentrated and difficult to fully burn. The furnace core of the present invention can make the fuel burn more fully, achieving the effect of energy saving and consumption reduction. Preferably, the present invention is arranged by tilting the first air port and the second air port, and the first air port and the second air port have different directions. The first air port and the second air port can form a cyclone with different directions and push it upward in a superimposed manner, so that the atomized fuel is more fully dispersed and the combustion efficiency is improved. Preferably, the present invention uses the structural design of the reflux cover, so that the flame sprayed upward enters the reflux chamber, is further gasified at high temperature in the reflux chamber and flows back downward, and then sprays out from the fire outlet through hole, so that the atomized fuel can be more fully atomized and fully burned, thereby improving the utilization rate of the fuel. The burner proposed in the present invention adopts the method of taking in air from the lower part of the furnace cavity, passing through the air guide cover so that the incoming air is first turned back downward and then transported upward, so that the incoming air 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, thereby improving the combustion efficiency. The setting of the heat dissipation holes can cool the atomizing nozzle, thereby ensuring the service life of the atomizing nozzle and uniform spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention.

[0019] Figure 2 It is a partial cross-sectional view of the present invention.

[0020] Figure 3 It is a schematic structural diagram of the cover body of the present invention.

[0021] Figure 4 It is a schematic structural diagram of the second fire distribution member in the present invention.

[0022] Figure 5 It is a partial cross-sectional schematic diagram of the furnace cavity and the air guide cover in the present invention.

[0023] In the figure:

[0024] Furnace core 1 Furnace chamber 2

[0025] Air supply mechanism 3 Oil supply component 4

[0026] Fire Circle 5

[0027] Furnace core body 10 Straight tube part 11

[0028] Cone 12 Bottom plate 13

[0029] Fuel inlet 14 Air-assisting hole 15

[0030] First support platform 16 Second support platform 17

[0031] Support flange 18

[0032] Cover body 20 First through hole 21

[0033] Second through hole 22 Buffer end 23

[0034] Mounting end 24

[0035] The second fire-distributing part 30

[0036] Annular flange 31 Backflow cover 32

[0037] Backflow chamber 33 Fire outlet hole 34

[0038] Connecting pipe 41 Ignition device 42

[0039] Nut 43 Air guide channel 44

[0040] Air guide cover 60 Air guide plate 61

[0041] Annular baffle 62 Heat dissipation hole 63

[0042] The first air outlet 121 The second air outlet 122

[0043] Air supply hole 201 Mounting frame 202 DETAILED DESCRIPTION

[0044] In order to better understand the technical solution of the present invention, it is described in more detail below in conjunction with embodiments.

[0045] Reference Figures 1 to 5A kind of energy-saving and consumption-reducing furnace core includes a furnace core body 10, a furnace cavity is formed in the furnace core body 10, a fuel inlet 14 and an air inlet are arranged at the lower part of the furnace cavity, and a fire outlet is formed at the upper part of the furnace cavity. In the present invention, the furnace core body 10 includes a straight cylinder part 11 and a conical cylinder part 12 arranged at the lower end of the straight cylinder part 11, a bottom plate 13 is formed at the lower end of the conical cylinder part 12, a fuel inlet 14 is arranged at the center of the bottom plate 13, and an air inlet 14 is arranged on the conical cylinder part 12. The straight cylinder part 11, the conical cylinder part 12 and the bottom plate 13 are integrally formed, and can be made of cast iron or stainless steel. A first fire dividing piece is arranged in the furnace cavity corresponding to the fuel inlet 14, and the first fire dividing piece is located above the fuel inlet 14. A second fire dividing piece 30 is formed in the furnace cavity corresponding to the fire outlet. In the present invention, the first fire-spreading member is a cover body 20 with an opening at the lower end, the lower end of the cover body 20 is a mounting end 24, the upper end of the cover body 20 is a closed buffer end 23, and the cover body 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, and the first through hole 21 and the second through hole 22 both penetrate from the upper surface to the lower surface of the cover body 20, and the buffer end 23 is arranged corresponding to the fuel inlet 14. More specifically, the buffer end 23 is located directly above the fuel inlet 14, and the flame ejected from the fuel inlet can be directly ejected to the buffer end 23 and bend downward.

[0046] As a preferred embodiment of the present invention, the inner diameter of the cover body 20 gradually decreases from top to bottom, and the entire cover body 20 is in the shape of an inverted bowl or a hemisphere. There are multiple first through holes 21, and the multiple first through holes 21 are evenly arranged along the circumference of the cover body 20. There are multiple second through holes 22, and the multiple second through holes 22 are evenly arranged along the circumference of the cover body 20. In the embodiment, the aperture of the first through hole 21 is slightly smaller than the aperture of the second through hole 22, and the first through hole 21 and the second through hole 22 are staggered in the up and down direction. The first through hole 21 mainly serves to guide the flame out, and the second through hole 22 mainly serves to supply air and boost the flame.

[0047] As a preferred embodiment of the present invention, 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] As a preferred embodiment of the present invention, 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] As a preferred embodiment of the present invention, the second fire-distributing member 30 includes an annular flange 31 and a backflow cover 32 formed on the center hole of the annular flange 31, and the entire second fire-distributing member 30 is in the shape of a cap. A backflow chamber 33 extending upward is formed in the backflow cover 32, and the first through hole 21 is arranged corresponding to the backflow chamber 33. The flame ejected from the first through hole 21 enters the backflow chamber 33 upward and turns back downward. A plurality of fire outlet holes 34 are arranged on the annular flange 31, and the fire outlet holes 34 pass through from the upper surface of the annular flange 31 to the lower surface. The plurality of fire outlet holes 34 are evenly arranged along the circumference of the annular flange 31. In the embodiment, the fire outlet holes are in the shape of a tapered hole that is small at the top and large at the bottom, and its axis is in the vertical direction. As a preferred embodiment of the present invention, a second support platform 17 is arranged on the inner wall of the furnace cavity, and the annular flange 31 is mounted on the second support platform 17.

[0050] In the present invention, the air inlet can adopt the air inlet through hole design of CN216010827U in the background technology. As a preferred embodiment of the present invention, the lower end of the furnace core body 10 forms a conical cylinder portion 12, and the first air port 121 and the second air port 122 are arranged below the cover body 20. The air inlet at least includes the first air port 121 and the second air port 122 arranged on the conical cylinder portion 12, the upper end of the first air port 121 is located above the upper end of the second air port 122, there are multiple first air ports 121, and the multiple first air ports 121 are at the same horizontal position. The multiple first air ports 121 are arranged along the periphery of the conical cylinder portion 12. The second air outlets 122 are evenly arranged in the same horizontal position, the second air outlets 122 are evenly arranged along the circumference of the conical cylinder portion 12, the first air outlet 121 and the second air outlet 122 both extend obliquely upward, preferably, the first air outlet 121 and the second air outlet 122 are staggered, the axis of the first air outlet 121 is set to one side, and the axis of the second air outlet 122 is set to the other side, that is, the axes of a corresponding group of first air outlets 121 and second air outlets 122 are set in different directions, and the first air outlet 121 and the second air outlet 122 are both arranged below the second through hole 22. Figure 2 In the figure, the dotted line a and the dotted line b generally show the directions of a corresponding group of first air outlets 121 and second air outlets 122. The air supplied by multiple first air outlets 121 can form a wind circle in a rotating direction, and the air supplied by multiple second air outlets 122 can form a wind circle in another rotating direction. Through the mixing and superposition of the wind circles, the atomized fuel can be further dispersed and pushed upward.

[0051] The present invention further proposes a burner, comprising a furnace 2, a furnace core 1 arranged in the furnace 2, an oil supply assembly 4 and an air supply mechanism 3, wherein the furnace core 1 adopts the furnace core 1 introduced above, the oil supply assembly 4 is connected to the oil supply device, and the air supply mechanism 3 can adopt a blower, for example. An air supply hole 201 is provided at the lower end of the furnace 2, the air supply mechanism 3 is installed on the air supply hole 201, a mounting frame 202 is provided in the air supply hole 201, the oil supply assembly 4 is arranged on the mounting frame 202, and in an embodiment, the oil supply assembly 4 passes through the air supply duct of the air supply mechanism 3.

[0052] As a preferred embodiment of the present invention, the oil 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 arranged corresponding to the fuel inlet 14, the igniter 42 is arranged corresponding to the atomizing nozzle, the connecting pipe 41 is mounted on the mounting frame 202, specifically, the outer wall of the connecting pipe 41 is provided with an external thread and a nut 43, the center of the mounting frame 202 is provided with a mounting hole, the connecting pipe 41 is passed through the mounting hole and is limited by the nut 43, so that the connecting pipe 41 is mounted on the mounting frame 202. An air guide cover 60 is also sleeved on the connecting pipe 41, the air guide cover 60 includes an air guide plate 61 and an annular baffle 62 extending downward, the air guide plate 61 is arranged in the horizontal direction, the annular baffle 62 is arranged in the vertical direction, a plurality of heat dissipation holes 63 are arranged on the air guide plate 61 corresponding to the atomizing nozzle, the plurality of heat dissipation holes 63 are arranged along the circumference of the air guide plate 61, and 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, a support flange 18 extending outward is formed at the upper end of the furnace core 1, and the support flange 18 is mounted on the upper end of the furnace chamber 2. The support flange 18 is provided with a plurality of air-assisting holes 15 corresponding to the inner cavity of the furnace chamber 2, and the air-assisting holes 15 are arranged in a vertical direction. A fire-gathering ring 5 is also provided at the upper end of the support flange 18, and the air-assisting holes 15 are arranged in the fire-gathering ring 5.

[0054] The protection scope of the present invention is not limited to this embodiment, and any person making similar changes thereto shall be deemed to be within the protection scope of the present invention.

Claims

1. An energy-saving and consumption-reducing furnace core, comprising a furnace core body, a furnace cavity formed in the furnace 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 fire outlet is formed at the upper part of the furnace cavity, a first fire distributor is provided in the furnace cavity corresponding to the fuel inlet, the first fire distributor is located above the fuel inlet, and a second fire distributor is formed in the furnace cavity corresponding to the fire outlet, wherein: The first fire-distributing component is a cover body with an opening at 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, and 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, 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.

2. The energy-saving and consumption-reducing furnace core according to claim 1, characterized in that: From top to bottom, the inner diameter of the cover body gradually decreases, there are multiple first through holes, and the multiple first through holes are evenly distributed along the circumference of the cover body, and there are multiple second through holes, and the multiple second through holes are evenly distributed along the circumference of the cover body.

3. The energy-saving and consumption-reducing furnace core according to claim 2, characterized in that: 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 furnace core according to claim 3, characterized in that: The inner wall of the furnace cavity forms a first support platform, and the mounting end is mounted on the first support platform.

5. The energy-saving and consumption-reducing furnace core according to claim 1, characterized in that: The second fire distribution part includes an annular flange and a return flow cover formed on the center hole of the annular flange, and an upwardly extending return flow chamber is formed in the return flow cover. The first through hole is arranged corresponding to the return flow chamber, and a plurality of fire outlet through holes are provided on the annular flange. The plurality of fire outlet through holes are evenly distributed along the circumference of the annular flange.

6. The energy-saving and consumption-reducing furnace core according to claim 5, characterized in that: The inner wall of the furnace cavity is provided with a second supporting platform, and the annular flange is mounted on the second supporting platform.

7. The energy-saving and consumption-reducing furnace core according to claim 1, characterized in that: The lower end of the furnace core body forms a conical cylinder portion, and the air inlet includes at least a first air port and a second air port arranged on the conical cylinder portion, the first air port and the second air port are arranged below the cover body, the upper end of the first air port is located above the upper end of the second air port, there are multiple first air ports, and the multiple first air ports are evenly arranged along the circumference of the conical cylinder portion, there are multiple second air ports, and the multiple second air ports are evenly arranged along the circumference of the conical cylinder portion, the first air port and the second air port both extend obliquely upward, the axis of the first air port is set toward one side, and the axis of the second air port is set toward the other side, and the first air port and the second air port are both set below the second through hole.

8. A burner, comprising a furnace, a furnace core arranged in the furnace, an oil supply assembly and an air supply mechanism, characterized in that: An air supply hole is provided at the lower end of the furnace, the air supply mechanism is installed on the air supply hole, a mounting frame is provided in the air supply hole, the oil supply assembly is arranged on the mounting frame, and the furnace core adopts the furnace core described in any one of claims 1 to 7.

9. The burner according to claim 8, characterized in that: The oil supply assembly includes an igniter, a connecting pipe and an atomizing nozzle. The atomizing nozzle is installed on the connecting pipe and is arranged corresponding to the fuel inlet. The connecting pipe is installed on the mounting frame. An air guide cover is also sleeved on the connecting pipe. The air guide cover includes an air guide plate and a downwardly extending annular baffle. A plurality of heat dissipation holes are arranged on the air guide plate corresponding to the atomizing nozzle. An air guide channel is formed between the annular baffle and the bottom of the furnace cavity.

10. The burner according to claim 9, characterized in that: The upper end of the furnace core forms a support flange extending outward, the support flange is mounted on the upper end of the furnace, and the support flange is provided with a plurality of air-assisting holes corresponding to the inner cavity of the furnace.

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