CN212673209U - Stove burner - Google Patents

Abstract

The utility model relates to a stove burner, which comprises a base, a burner cover and a burner cover, wherein the base is provided with an annular cavity which is annular and has an open top; the first infrared combustion plate is arranged at the position, close to the top, of the annular cavity to cover at least part of the top opening of the annular cavity, and first fire holes are distributed in the first infrared combustion plate; the infrared combustion device is characterized by further comprising a convex lens, wherein the convex lens covers the open top of the annular cavity and is positioned above the first infrared combustion plate, and the upper surface of the convex lens is arched upwards. The infrared rays of the first infrared combustion plate can be gathered together after passing through the convex lens, so that the condition that the infrared rays are diffused outwards is reduced, and the heat efficiency is improved; the first infrared combustion plate is located the central point of base and puts, sets up burning passageway and tonifying qi passageway in the periphery of first infrared combustion plate, covers the fire lid on the burning passageway, adopts half atmosphere half infrared formula combustor promptly for the burning is more abundant, has further improved the thermal efficiency.

Description

Stove burner

Technical Field

The utility model belongs to the technical field of cooking utensils, concretely relates to cooking utensils combustor.

Background

The burner is one of the important components of the gas cooker, and directly influences the performance of the gas cooker, such as smoke, heat efficiency and the like.

The existing burner structure like the Chinese utility model 'a burner for kitchen range' that the applicant previously applied for, its patent number is ZL201821028377.8 (the publication number is CN208886771U) discloses a burner for kitchen range, including outer ring cavity, the outer ring cavity is including being the annular and concentric inner ring wall and the outer rampart that sets up at interval and the diapire of connecting inner ring wall and outer rampart, inner ring wall and outer rampart top cover have outer ring fire lid, its characterized in that: the outer ring cavity is internally provided with secondary air supplement cells which are relatively isolated, the top wall of the outer ring fire cover is provided with main fire holes and secondary air supplement cells which are distributed along the radial direction at intervals, and the inner ring wall and/or the outer ring wall and/or the bottom wall of the outer ring cavity are/is provided with air inlets which are communicated with the outside air and the air outlets at the positions corresponding to the secondary air supplement cells.

The maximum temperature of flame of the atmospheric cooker is generally about 850 ℃, the pot body is heated by two modes of convection and heat radiation of high-temperature smoke, wherein the convection heating ratio accounts for about 80%, the radiation heating ratio accounts for 20%, the heat load is large, the convection heating of the pot body is limited by the heat absorption capacity of the pot body, the temperature of the smoke exhausted from the bottom of the pot is high, nearly one fourth of heat is taken away by the exhausted smoke and is dissipated to the surrounding environment, and the maximum heat efficiency can only reach about 78%.

In order to solve the technical problems, for example, a suspension type infrared burner is disclosed in the patent of Chinese utility model patent, for example, patent No. ZL201621448461.6 (publication No. CN206347571U), the suspension type infrared burner comprises a distributor and a bracket arranged below the distributor, the distributor comprises an outer fire diffusion cavity and a central fire diffusion cavity, an outer fire combustion plate is arranged on the outer fire diffusion cavity, and a central fire combustion plate is arranged on the central fire diffusion cavity; two external fire mixed air cavities communicated with the external fire diffusion cavity are arranged below the external fire diffusion cavity. The central fire diffusion cavity is provided with a central fire combustion plate, the central fire combustion plate adopts an infrared combustion mode, however, infrared rays are diffused outwards and cannot be effectively collected, and the heat efficiency is relatively low.

Therefore, further improvements to existing cooktop burners are needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the first technical problem that to the current situation of above-mentioned prior art, provide a cooking utensils combustor with infrared ray gathering in order to reach the purpose of increasing the thermal efficiency.

The second technical problem to be solved by the utility model is to provide a semi-atmospheric and semi-infrared cooker burner which can burn more components by supplementing secondary air.

The utility model provides a technical scheme that above-mentioned first technical problem adopted does: a stove burner comprises a base, a burner body and a burner body, wherein the base is provided with an annular cavity which is annular and has an open top;

the first infrared combustion plate is arranged at the position, close to the top, of the annular cavity to cover at least part of the top opening of the annular cavity, and first fire holes are distributed in the first infrared combustion plate;

it is characterized by also comprising

And the convex lens covers the open top of the annular cavity and is positioned above the first infrared combustion plate, and the upper surface of the convex lens is arched upwards.

The structure of the convex lens has various forms, but preferably, the upper surface of the convex lens is a first spherical surface, the lower surface of the convex lens is a second spherical surface which is convex downwards, the thickness of the thickest part of the convex lens is d,

n is the refractive index of the convex lens, r1 is the radius of the second spherical surface, r2 is the radius of the first spherical surface, and H is the height between the first spherical surface and the bottom surface of the member to be heated.

In order to prevent flameout when realizing the purpose of igniting, be provided with the ignition needle on the base, annular cavity inside has the passageway that link up from top to bottom, enclose between the periphery wall of passageway and the internal perisporium of annular cavity and close the annular channel who forms the confession inner ring gas and get into, first infrared combustion board is cyclic annularly, and is located in the annular channel, the ignition needle is located in the passageway, and the part extends the passageway and is located between first infrared combustion board and the convex lens. The ignition needle is hidden in the channel and is positioned below the convex lens, so that the phenomenon that overflowing liquid directly contacts the ignition needle to extinguish is prevented.

The utility model provides a technical scheme that above-mentioned second technical problem adopted does: the base is lieing in the periphery of annular cavity is provided with and is annular zhonghuan cavity, be provided with the baffle in the zhonghuan cavity, the inner chamber quilt of zhonghuan cavity the baffle separates into mutually independent and open gas passage in top and tonifying qi passageway at least, the open department in top of gas passage covers has the fire lid, the fire is covered and is seted up the external fire hole that communicates with gas passage, the tonifying qi passageway has the secondary air intake that supplies the secondary air to get into and is used for the secondary air outlet to a fire hole tonifying qi.

The gas is supplied to the gas channel through the gas supply channel, so that the combustion efficiency is fully improved. The combination of infrared combustion and atmospheric combustion is adopted, the combustion efficiency and the exchange efficiency are higher, the flame wavelength of the outer ring flame generator is smaller than 0.76 mu m, the flame wavelength of the middle ring flame generator is between 0.75 and 40 mu m, and the flame wavelength of the inner ring flame generator is between 25 and 1000 mu m, so that the semi-atmospheric and semi-infrared combustor can adopt the 'full-band' technology

The gas channel and the air supply channel can be annular and arranged in sequence along the radial direction, and also can be arranged in sequence along the circumferential direction, preferably, the partition plates vertically extend, at least two partition plates are arranged at intervals along the circumferential direction, and then the gas channel and the air supply channel are arranged at intervals along the circumferential direction.

In order to supplement secondary air to the fire outlet hole in time, a cover plate covers the open top of the air supply channel, a gap is reserved between the cover plate and the air supply channel, and the gap is the secondary air outlet. The top cover plate on the air supply channel is arranged to block the overflowing liquid to a certain extent.

Further preferably, the cover plate is located above the fire cover, a gap is reserved between the cover plate and the fire cover, and the gap is communicated with the secondary air outlet.

In order to increase the supplement of secondary air and improve the combustion efficiency, the air supply channels are vertically communicated, at least two air supply channels are arranged at intervals along the circumferential direction and are communicated with each other in fluid, the secondary air inlet is the lower opening of each air supply channel, and the fuel gas channel is arranged between every two adjacent air supply channels. Therefore, secondary air can be supplemented to the gas channel to enable combustion to be more sufficient, and combustion efficiency is improved.

In an improved manner, each air supply channel is covered with the cover plate, the cover plates are connected through a connecting ring, the connecting ring is placed on the base and corresponds to the annular cavity, and the convex lens covers the connecting ring. So, can block the discharge better, reduce the discharge and get into out the fire hole.

In order to guide the overflowing liquid into the concave cavity conveniently, the upper surface of the convex lens is positioned above the cover plate, and the upper surface of the cover plate is sunken downwards to form a concave cavity for containing the overflowing liquid.

Compared with the prior art, the utility model has the advantages of: according to the stove burner, the convex lens is arranged above the first infrared combustion plate, infrared rays of the first infrared combustion plate can be gathered together after passing through the convex lens, the condition that the infrared rays are diffused outwards is reduced, and the heat efficiency is improved; the first infrared combustion plate is located the central point of base and puts, sets up burning passageway and tonifying qi passageway in the periphery of first infrared combustion plate, covers the fire lid on the burning passageway, adopts half atmosphere half infrared formula combustor promptly for the burning is more abundant, has further improved the thermal efficiency.

Drawings

FIG. 1 is a partial schematic structural view of the present embodiment;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a schematic diagram of a convex lens;

FIG. 4 is a schematic view of an assembly structure of a convex lens and a cover plate;

FIG. 5 is a schematic structural view of a cover plate;

FIG. 6 is a schematic structural diagram of the present embodiment;

FIG. 7 is a cross-sectional view of FIG. 6;

FIG. 8 is a schematic structural view of the base of FIG. 1;

fig. 9 is a cross-sectional view of fig. 8.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 7, the utility model discloses cooking utensils combustor of embodiment includes base 1, first infrared combustion board 2, convex lens 3, fire lid 4, apron 5, second combustion board 6 and ignition needle 7

As shown in fig. 1, 2 and 7 to 9, the base 1 has an annular cavity 11 with an open top, the annular cavity 11 is located at the center of the base 1, a through channel 111 is formed in the annular cavity 11, an annular channel 112 for the inner ring gas to enter is formed between the outer peripheral wall of the channel 111 and the inner peripheral wall of the annular cavity 11, the first infrared combustion plate 2 is annular and located in the annular channel 112 near the topThe top of the annular channel 12 is covered and opened, and the first infrared combustion plate 2 is distributed with first fire holes 21. The convex lens 3 covers the top opening of the annular cavity 11 and is positioned above the first infrared combustion plate 2, and the upper surface of the convex lens 3 is arched upwards. Specifically, the upper surface of the convex lens 3 is a first spherical surface 31, the lower surface of the convex lens 3 is a second spherical surface 32 which is convex downward, the thickness of the thickest part of the convex lens 3 is d,

n is the refractive index of the convex lens 3, r1 is the radius of the second spherical surface 32, r2 is the radius of the first spherical surface 31, and H is the height between the first spherical surface 31 and the bottom surface of the pan 8. Therefore, infrared rays of the first infrared combustion plate can be gathered together to a point at the center of the bottom of the pot 8 after passing through the convex lens, the condition that the infrared rays are diffused outwards is reduced, and the heat efficiency is improved.

As shown in fig. 2 and 7, the ignition needle 7 is disposed on the base 1 and located in the channel 111, and a part of the ignition needle 7 extends out of the channel 111 and is located between the first infrared combustion plate 2 and the convex lens 3, so that the ignition needle 7 is hidden in the channel and located below the convex lens 3, thereby preventing the overflowing liquid from directly contacting the ignition needle to cause flameout.

As shown in fig. 8 and 9, the base 1 is provided with a middle ring cavity 12 located at the periphery of the ring cavity 11 and having an open top, the middle ring cavity 12 is ring-shaped, a partition plate 12a is disposed in the middle ring cavity 12, the partition plate 12a extends vertically and is at least two and is arranged at intervals along the circumferential direction, an inner cavity of the middle ring cavity 12 is at least divided into a gas channel 121 and an air supply channel 122 which are independent from each other and have open tops by the partition plate 12a, and the gas channel 121 and the air supply channel 122 are arranged at intervals along the circumferential direction. In this embodiment, the number of the gas supply channels 122 is three, 3 gas supply channels 122 are arranged at intervals along the circumferential direction and are in fluid communication with each other, the gas channel 121 is disposed between two adjacent gas supply channels 122, a gas inlet 1211 for gas to enter is disposed on the base 1, and the gas inlet 1211 is communicated with the gas channel 121.

As shown in fig. 1, fig. 2, fig. 6 and fig. 7, the open top of the gas channel 121 is covered with a fire cover 4, the fire cover 4 is substantially in the shape of a sector with a narrow inner end and a wide outer end, the fire cover 4 is a mesh, the fire cover 4 is provided with a fire outlet 41 communicating the outside with the gas channel 121, and the lower opening of the air supply channel 122 forms a secondary air inlet 1221 for secondary air to enter; the cover plate 5 covers the open top of each air supply channel 122, a space is reserved between each cover plate 5 and the corresponding air supply channel 122, the space is a secondary air outlet 1222 for supplying air to the fire outlet 41, the cover plate 5 is located above the fire cover 4, a gap a is reserved between each cover plate 5 and the fire cover 4, and the gap a is communicated with the secondary air outlet 1222, so that air supply to the fire outlet is achieved.

As shown in fig. 4 and 5, the cover plates 5 are connected by a connecting ring 51, the connecting ring 51 rests on the base 11 and corresponds to the annular cavity 11, the convex lens 3 rests on the connecting ring 51, the upper surface of the convex lens 3 is located above the cover plate 5, and the upper surface of the cover plate 5 is recessed downward to form a cavity 52 for accommodating the overflowing liquid.

As shown in fig. 6 and 7, the second infrared combustion plate 6 is disposed at a position adjacent to the top of the outer ring cavity 13, and the second infrared combustion plate 6 is distributed with second fire holes 61, and the upper surface of the second combustion plate 6 is an inclined surface gradually inclined downward from outside to inside, and the arrangement of the cover plate at the top of the air supply channel can block the overflow to a certain extent, and the overflow on the cover plate can be carbonized under the heating action of the second infrared combustion plate, so as to reduce the blockage of the fire holes caused by the overflow entering the fire holes of the fire cover.

As shown in fig. 8 and 9, the susceptor 1 has an annular outer ring cavity 13 with an open top at the periphery of the middle ring cavity 12, three mixed gas channels are arranged on the susceptor 1, which are respectively a first air inlet channel 14, a second air inlet channel 15 and a third air inlet channel 16 arranged at the bottom of the susceptor 1, and the first air inlet channel 14 is communicated with the annular cavity 11; an opening 1212 is opened on the side wall of the gas channel 121, and the gas channel 121 is communicated with the second air inlet channel 15 through the opening 1212; the third air inlet passage 16 is communicated with the outer ring cavity 13, and the first air inlet passage 14, the second air inlet passage 15 and the third air inlet passage 16 are respectively connected with the ejector pipe, so that the base 1 can receive mixed gas of the ejector pipe.

The term "fluid communication" as used herein refers to a spatial relationship between two components or portions (hereinafter collectively referred to as a first portion and a second portion), i.e., a fluid (gas, liquid or a mixture of both) can flow along a flow path from the first portion or/and be transported to the second portion, and may be directly communicated between the first portion and the second portion, or indirectly communicated between the first portion and the second portion via at least one third member, which may be a fluid passage such as a pipe, a channel, a duct, a flow guide, a hole, a groove, or a chamber allowing the fluid to flow therethrough, or a combination thereof.

Claims (10)

1. A stove burner comprises

The device comprises a base (1) and a base, wherein the base is provided with an annular cavity (11) which is annular and open at the top;

the first infrared combustion plate (2) is arranged at the position, close to the top, of the annular cavity (11) to cover at least part of the top opening of the annular cavity (11), and first fire holes (21) are distributed on the first infrared combustion plate;

it is characterized by also comprising

And the convex lens (3) covers the open top of the annular cavity (11) and is positioned above the first infrared combustion plate (2), and the upper surface of the convex lens (3) is arched upwards.

2. The cooktop burner of claim 1, wherein: the upper surface of the convex lens (3) is a first spherical surface (31), the lower surface of the convex lens (3) is a second spherical surface (32) which is convex downwards, the thickness of the thickest part of the convex lens (3) is d,

n is the refractive index of the convex lens (3), r1 is the radius of the second spherical surface (32), r2 is the radius of the first spherical surface (31), and H is the height between the first spherical surface (31) and the bottom surface of the member to be heated.

3. The cooktop burner of claim 1, wherein: be provided with ignition needle (7) on base (1), annular cavity (11) inside has passageway (111) that link up from top to bottom, enclose between the internal perisporium of periphery wall and annular cavity (11) of passageway (111) and form annular channel (112) that supply the inner ring gas to get into, first infrared combustion board (2) are cyclic annularly, and are located in annular channel (112), ignition needle (7) are located in passageway (111), and the part extends passageway (111) and is located between first infrared combustion board (2) and convex lens (3).

4. Hob burner according to any of the claims 1 to 3, characterized in that: base (1) is lieing in the periphery of annular cavity (11) is provided with and is annular middle ring cavity (12), be provided with baffle (12a) in middle ring cavity (12), the inner chamber of middle ring cavity (12) quilt baffle (12a) separate into mutually independent and open-topped gas passageway (121) and tonifying qi passageway (122) at least, the open mouth in top of gas passageway (121) covers fire lid (4), set up the fire outlet (41) of intercommunication external world and gas passageway (121) on fire lid (4), tonifying qi passageway (122) have supply secondary air intake (1221) of secondary air entering and be used for to secondary air outlet (1222) tonifying qi of fire outlet (41).

5. The cooktop burner of claim 4, wherein: the partition plates (12a) extend vertically, at least two partition plates are arranged at intervals along the circumferential direction, and the gas channel (121) and the gas supplementing channel (122) are arranged at intervals along the circumferential direction.

6. The cooktop burner of claim 5, wherein: the top opening of the air supply channel (122) is covered with a cover plate (5), a gap is reserved between the cover plate (5) and the air supply channel (122), and the gap is the secondary air outlet (1222).

7. The cooktop burner of claim 6, wherein: the cover plate (5) is located above the fire cover (4), a gap (A) is reserved between the cover plate and the fire cover (4), and the gap (A) is communicated with the secondary air outlet (1222).

8. The cooktop burner of claim 6, wherein: the gas supplementing channels (122) are vertically communicated, at least two gas supplementing channels are arranged at intervals along the circumferential direction and are communicated with each other through fluid, the secondary air inlet (1221) is an opening at the lower part of each gas supplementing channel (122), and the fuel gas channel (121) is arranged between every two adjacent gas supplementing channels (122).

9. The cooktop burner of claim 8, wherein: each air supply channel (122) is covered with the cover plate (5), the cover plates (5) are connected through a connecting ring (51), the connecting ring (51) is placed on the base (1) and corresponds to the annular cavity (11), and the convex lens (3) covers the connecting ring (51).

10. The cooktop burner of claim 9, wherein: the upper surface of the convex lens (3) is positioned above the cover plate (5), and the upper surface of the cover plate (5) is recessed downwards to form a concave cavity (52) for containing overflowing liquid.

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