CN212987289U - Stove burner - Google Patents

Abstract

The utility model relates to a stove burner, which comprises a base, an outer ring cavity and an inner ring cavity, wherein the inner ring cavity is arranged on the inner periphery of the outer ring cavity; the infrared combustion plate is annular, covers the top opening of the outer ring cavity and is encircled with the outer ring cavity to form an outer ring gas mixing chamber; the fire cover is provided with fire holes on the peripheral wall; the liquid containing disc is positioned below the base; the method is characterized in that: the inner ring cavity is internally provided with a central flow passage which is communicated up and down, an annular flow passage is formed by enclosing between the outer peripheral wall of the central flow passage and the inner peripheral wall of the inner ring cavity, the fire cover covers the top opening of the annular flow passage and is enclosed with the annular flow passage to form a gas passage, the fire cover is provided with a passage which is communicated with the central flow passage at the position corresponding to the central flow passage, and the central flow passage is communicated with the passage to form a flow guide passage which is not communicated with the gas passage. The overflow liquid is prevented from accumulating on the upper surface of the fire cover and flowing onto the fire hole of the fire cover, and the possibility of blocking the fire hole is reduced.

Description

Stove burner

Technical Field

The utility model belongs to the cooking utensils field, 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 is like the Chinese utility model patent 'an last air inlet burner and applied this stove that goes up air inlet burner' that applicant applied earlier, and its patent number is ZL201821788847.0 (the publication number of granting is CN209706048U) discloses an last air inlet burner, including the base, transversely run through the first pipe that draws of base, set up on the base to and be formed with the first fire lid that is located the first gas mixing chamber of central authorities between and the base, and be located the cushion chamber under the base, the first air outlet end that draws the pipe is through cushion chamber and first gas mixing chamber fluid intercommunication, be provided with flourishing liquid dish under the burner.

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, the Chinese utility model patent "a direct injection type infrared burner" with the patent number ZL201620291261.8 (the publication number is CN205504987U) discloses a direct injection type infrared burner which comprises a combustion part and an injection part; the combustion part comprises an annular infrared combustion part and a disc-shaped direct-injection combustion part, and the direct-injection combustion part is positioned in a circular hole of the annular infrared combustion part; the direct injection type combustion part comprises one or more direct injection type combustors, each direct injection type combustor comprises a fire cover, and combustion holes are distributed in the fire cover. The semi-infrared semi-atmospheric burner improves the heat efficiency, but the overflowed liquid is easy to contact with the burning hole of the fire cover to block the burning hole

Therefore, further improvements to existing cooktop burners are needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the current situation of above-mentioned prior art, a half infrared half atmospheric type cooking utensils combustor that prevents to cover fire hole jam is provided.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a stove burner comprises

The base is provided with an outer ring cavity with an opening at the top, and an inner ring cavity with an opening at the top is arranged on the inner periphery of the outer ring cavity;

the infrared combustion plate is annular, is arranged at the position, close to the top opening, of the outer ring cavity, covers the top opening of the outer ring cavity, and forms an outer ring gas mixing chamber by enclosing with the outer ring cavity;

the fire cover covers the open top of the inner ring cavity, and the peripheral wall of the fire cover is provided with a fire outlet;

the liquid containing disc is positioned below the base;

the method is characterized in that: the inner ring cavity is internally provided with a central flow passage which is communicated up and down and is positioned on the liquid containing disc, an annular flow passage is formed between the outer peripheral wall of the central flow passage and the inner peripheral wall of the inner ring cavity in an enclosing manner, the fire cover is arranged at the open top of the annular flow passage and forms a gas channel with the annular flow passage in an enclosing manner, a channel communicated with the central flow passage is arranged at the position corresponding to the central flow passage of the fire cover, and the central flow passage is communicated with the channel to form a flow guide passage which is not communicated with the gas channel.

In order to guide the overflowing liquid into the channel conveniently, the upper part of the channel is a contraction section which gradually shrinks inwards from top to bottom.

Specifically, the inner circumferential surface of the contraction section is a flow guide surface which gradually inclines inwards from top to bottom. Thus, the overflowing liquid enters the channel under the guiding action of the flow guide surface.

In order to realize being connected of base and inner ring cavity, the inner ring cavity with be formed with the tonifying qi passageway between the outer loop cavity, have two at least first mounting panels along circumference interval arrangement and inside extension on the base, the periphery wall of inner ring cavity is provided with outside extension and connects on the position that corresponds first mounting panel second mounting panel on the first mounting panel, first mounting panel and second mounting panel are located in the tonifying qi passageway.

Preferably, a secondary air inlet channel for secondary air to flow in is formed between the base and the liquid containing disc, and a gap is reserved between the flow guide channel and the liquid containing disc and is in fluid communication with the secondary air inlet channel. So, the water conservancy diversion of overflow is realized to the existence of water conservancy diversion passageway on the one hand, and on the other hand, secondary air upwards flows through this water conservancy diversion passageway and supply secondary air to the hole of putting out a fire of fire lid to can reduce the temperature of fire lid, avoid each part because of the problem that the high temperature caused the life-span.

In order to facilitate the assembly and disassembly of the infrared combustion plate, a supporting piece for supporting the infrared combustion plate is placed on the outer ring cavity.

Specifically, the supporting piece comprises at least two supporting strips, and an inner ring body and an outer ring body which are arranged from inside to outside at intervals and are annular, wherein the supporting strips are arranged at intervals along the circumferential direction, two ends of each supporting strip are respectively arranged at the positions, adjacent to the lower parts, of the inner ring body and the outer ring body, and a space for accommodating the infrared combustion plate is formed among the supporting strips, the inner ring body and the outer ring body.

Preferably, the upper surface of the infrared combustion plate is gradually inclined inward from top to bottom.

In order to inject the gas mixed with air into the gas channel and the outer ring gas mixing chamber, an inner ring injection pipe and an outer ring injection pipe are arranged on the base and positioned above the liquid containing disc, the inner ring injection pipe is in fluid communication with the gas channel, and the outer ring injection pipe is in fluid communication with the outer ring gas mixing chamber.

In order to supplement gas mixed with air to the outer ring gas mixing chamber, two outer ring injection pipes are arranged at intervals along the circumferential direction and basically extend along the circumferential direction, and the opening directions of the inlet ends of the two outer ring injection pipes are opposite. Therefore, the mixed gas in the outer ring gas mixing chamber is distributed more uniformly, and the combustion is more sufficient.

Compared with the prior art, the utility model has the advantages of: the inner ring cavity of the stove burner is internally provided with a flow guide channel which is communicated up and down, and water at the bottom of a pot falls on the upper surface of the fire cover and flows to the liquid containing disc through the flow guide channel, so that the overflow liquid is prevented from accumulating on the upper surface of the fire cover and flowing to the fire hole of the fire cover, the possibility of blocking the fire hole is reduced, and the blocking of the fire hole is avoided to a certain extent. In addition, secondary air is supplemented upwards to the fire outlet hole of the fire cover through the flow guide channel, so that the combustion is more sufficient and the combustion efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

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

FIG. 3 is a cross-sectional view at another angle from FIG. 1;

FIG. 4 is a schematic view of a portion of the structure of FIG. 1;

FIG. 5 is a schematic view of the structure of FIG. 4 at another angle;

FIG. 6 is a schematic structural view of the base of FIG. 1;

FIG. 7 is a schematic perspective exploded view of FIG. 4;

FIG. 8 is a cross-sectional view of the cooktop.

Detailed Description

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

As shown in fig. 8, the cooktop of the present embodiment includes a cooktop panel 10 and a cooktop burner, and the cooktop panel 10 is provided with a mounting hole 101 for accommodating a portion of the cooktop burner therein.

As shown in fig. 1 to 8, the stove burner includes a base 1, an inner ring cavity 2, an infrared combustion plate 3, a fire cover 4, a liquid containing tray 5, a support member 6, an inner ring injection pipe 7, an outer ring injection pipe 8, and an energy-gathering cover 9. As shown in fig. 8, the liquid containing tray 5 of the aforementioned stove burner is partially located in the mounting hole 101, and the top edge of the liquid containing tray 5 is located above the stove panel 10 and rests on the position of the stove panel 10 adjacent to the mounting hole 101.

As shown in fig. 4 and 5, the base 1 has an outer ring cavity 11 with an open top, as shown in fig. 1, the infrared combustion plate 3 is annular, and the infrared combustion plate 3 is disposed at the position of the outer ring cavity 11 adjacent to the open top and covers the open top of the outer ring cavity 11, as shown in fig. 2 and 3, the infrared combustion plate 3 and the outer ring cavity 11 enclose an outer ring air mixing chamber 12 communicated with the outer ring injection pipe 8, the upper surface 32 of the infrared combustion plate 3 is inclined inward from top to bottom, as shown in fig. 2, fire holes 31 communicated with the outer ring air mixing chamber 12 are distributed on the upper surface of the infrared combustion plate 3. As shown in fig. 1 to 3, the energy concentrating cover 9 is located at the periphery of the outer ring cavity 11, and the inside of the energy concentrating cover 9 has a cavity D. In order to support the pot conveniently, as shown in fig. 1 to 3, four pot supporting legs 91 for supporting the pot are provided on the top surface of the energy-collecting cover 9, and the four pot supporting legs 91 are arranged at intervals along the circumferential direction.

In order to facilitate the installation of the infrared combustion plate 3, a supporting member 6 for supporting the infrared combustion plate 3 is disposed on the outer ring cavity 11, and specifically, as shown in fig. 4, 5 and 7, the supporting member 6 includes supporting strips 63, and an inner ring body 61 and an outer ring body 62 which are spaced from each other from inside to outside, the inner ring body 61 is annular and disposed on a top edge of an inner circumferential wall of the outer ring cavity 11, the outer ring body 62 is annular and disposed on a top edge of an outer circumferential wall of the outer ring cavity 11, the supporting strips 63 have 3 pieces and are spaced from each other in the axial direction, two ends of each supporting strip 63 are respectively connected to a lower portion of the inner ring body 61 and a lower portion of the outer ring body 62, a space for accommodating the infrared combustion plate 3 is formed among the supporting strips 63, the inner ring body 61 and the outer ring body 62, and the supporting strips 63 are located below the infrared combustion plate 3 in a state.

As shown in fig. 1 to 3, the inner ring cavity 2 is located at the inner periphery of the outer ring cavity 11, and a gas supply channel C is formed between the inner ring cavity 2 and the outer ring cavity 11. In order to facilitate the connection between the inner ring cavity 2 and the base 1, as shown in fig. 5 to 7, at least two first mounting plates 13 are arranged on the base 1 at intervals along the circumferential direction and extend inward, in this embodiment, there are two first mounting plates 13, a second mounting plate 24 extending outward and connected to the corresponding first mounting plate 13 is disposed on the outer circumferential wall of the inner ring cavity 2 at a position corresponding to the first mounting plate 13, and both the first mounting plate 13 and the second mounting plate 24 are located in the gas supplementing channel C, as shown in fig. 5.

As shown in fig. 3, the top of the inner cavity 2 is open, a central flow channel 21 is formed in the inner cavity 2 and runs through the inner cavity from top to bottom, and the liquid tray 5 is located below the base 1 and below the central flow channel 21 and the infrared combustion plate 3 for accommodating the overflow. As shown in fig. 7, an annular flow passage 22 is defined between the outer peripheral wall of the central flow passage 21 and the inner peripheral wall of the inner annular cavity 2, and the fire cover 4 covers the open top of the annular flow passage 22 and defines a gas passage 23 with the annular flow passage 22, as shown in fig. 3. The gas channel 23 is communicated with the inner ring injection pipe 7, as shown in fig. 2 to 5, the fire cover 4 is provided with a channel 41 communicated with the central channel 21 at a position corresponding to the central channel 21, the central channel 21 is communicated with the channel 41 to form a flow guide channel a which is not communicated with the gas channel 23, and a gap is reserved between the flow guide channel a and the liquid containing disc 5. In addition, as shown in fig. 2 and 3, a secondary air intake channel B for secondary air to flow in is formed between the liquid containing tray and the base 1, the secondary air intake channel B is in fluid communication with the air replenishing channel C, and the secondary air intake channel B is in fluid communication with the flow guide channel a through the gap E.

In order to guide the overflow from the top of the fire lid into the central channel 21, as shown in fig. 2 and 3, the upper portion of the channel 41 is a shrinking section 411 which gradually shrinks inward from top to bottom, and the inner circumferential surface of the shrinking section 411 is a guide surface 412 which gradually inclines inward from top to bottom, so that the overflow flows into the channel 41 under the guidance of the guide surface 412.

As shown in fig. 3, the inner ring ejector pipe 7 and the outer ring ejector pipe 8 are positioned between the liquid containing tray 5 and the base 1. The two inner ring injection pipes 7 are arranged side by side and communicated with the gas channel 23. As shown in fig. 6, two outer ring injection pipes 8 are arranged at intervals along the circumferential direction, each of the two outer ring injection pipes 8 extends substantially along the circumferential direction, and the opening directions of the inlet ends 81 of the two outer ring injection pipes 8 are opposite.

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 outer ring cavity (11) with an opening at the top, and an inner ring cavity (2) with an opening at the top is arranged on the inner periphery of the outer ring cavity (11);

the infrared combustion plate (3) is annular, is arranged at the position, close to the top opening, of the outer ring cavity (11), covers the top opening of the outer ring cavity, and is enclosed with the outer ring cavity (11) to form an outer ring gas mixing chamber (12);

the fire cover (4) covers the top opening of the inner ring cavity (2), and the peripheral wall of the fire cover is provided with a fire outlet (42);

the liquid containing disc (5) is positioned below the base (1);

the method is characterized in that: the inner ring cavity (2) is internally provided with a central flow passage (21) which is vertically communicated and is positioned on the liquid containing disc (5), an annular flow passage (22) is formed by enclosing between the outer peripheral wall of the central flow passage (21) and the inner peripheral wall of the inner ring cavity (2), the fire cover (4) covers the open top of the annular flow passage (22) and is enclosed with the annular flow passage (22) to form a gas passage (23), the fire cover (4) is provided with a passage (41) communicated with the central flow passage (21) at the position corresponding to the central flow passage (21), and the central flow passage (21) is communicated with the passage (41) to form a flow guide passage (A) which is not communicated with the gas passage (23).

2. The cooktop burner of claim 1, wherein: the upper part of the channel (41) is a contraction section (411) which gradually shrinks inwards from top to bottom.

3. The cooktop burner of claim 2, wherein: the inner circumferential surface of the contraction section (411) is a flow guide surface (412) which gradually inclines inwards from top to bottom.

4. The cooktop burner of claim 1, wherein: inner ring cavity (2) with be formed with tonifying qi passageway (C) between outer loop cavity (11), have two at least first mounting panel (13) along circumference interval arrangement and inward extension on base (1), the periphery wall of inner ring cavity (2) is provided with outward extension and connects on the position that corresponds first mounting panel (13) second mounting panel (24) on first mounting panel (13), first mounting panel (13) and second mounting panel (24) are located in tonifying qi passageway (C).

5. Hob burner according to any of the claims 1 to 4, characterized in that: a secondary air inlet channel (B) for secondary air to flow in is formed between the base (1) and the liquid containing disc (5), and a gap is reserved between the flow guide channel (A) and the liquid containing disc (5) and is in fluid communication with the secondary air inlet channel (B).

6. The cooktop burner of claim 1, wherein: and a support piece (6) used for supporting the infrared combustion plate (3) is placed on the outer ring cavity (11).

7. The cooktop burner of claim 6, wherein: the support piece (6) comprises at least two support strips (63) and an inner ring body (61) and an outer ring body (62) which are arranged from inside to outside at intervals and are annular, the support strips (63) are arranged at intervals along the circumferential direction, two ends of each support strip (63) are connected to the positions, close to the lower parts, of the inner ring body (61) and the outer ring body (62) respectively, and spaces for containing the infrared combustion plates (3) are formed among the support strips (63), the inner ring body (61) and the outer ring body (62).

8. The cooktop burner of claim 1, wherein: the upper surface (32) of the infrared combustion plate (3) is gradually inclined inwards from top to bottom.

9. The cooktop burner of claim 1, wherein: the base (1) is provided with an inner ring injection pipe (7) and an outer ring injection pipe (8) above the liquid containing disc (5), the inner ring injection pipe (7) is in fluid communication with the gas channel (23), and the outer ring injection pipe (8) is in fluid communication with the outer ring gas mixing chamber (12).

10. The cooktop burner of claim 9, wherein: the two outer ring injection pipes (8) are arranged at intervals along the circumferential direction and extend along the circumferential direction basically, and the opening directions of the inlet ends (81) of the two outer ring injection pipes (8) are opposite.

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