CN211119339U

CN211119339U - Burner for gas stove

Info

Publication number: CN211119339U
Application number: CN201921538613.5U
Authority: CN
Inventors: 兰华
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2020-07-28
Anticipated expiration: 2029-09-17

Abstract

The utility model relates to a burner for a gas stove, which comprises a base with a first cavity positioned in the center, wherein a first ejector is arranged in the center of the first cavity; the method is characterized in that: the first cavity is connected with an external air supply part; still including setting up at the base in the peripheral second cavity of first cavity to and draw and penetrate pipe and second sprayer that are linked together with the second cavity, compare with prior art, the utility model has the advantages of: the utility model provides a combustor for gas-cooker, wherein main fire hole and the steady flame hole of fire lid have respectively corresponding gas mixing chamber and air feed portion and sprayer respectively to steady flame hole draws through the nature of second sprayer and draws and provides primary air, and main fire hole provides primary air through outside air feed portion, and the primary air's of main fire hole volume is controllable, burns with higher combustion load, and then avoids the primary air unstability in steady flame hole.

Description

Burner for gas stove

Technical Field

The utility model relates to a domestic kitchen utensils and appliances technical field especially relates to a combustor for gas-cooker with air blast structure.

Background

There are various blast-type cooking burners on the market today, structurally: a primary air blast burner, a secondary air blast burner and a primary and secondary air simultaneous blast burner, such as a Chinese patent application with the patent application number of CN201610790038.2 (application publication number of CN106287715A), which discloses a blast burner, a gas ejector pipe and a gas spray pipe which is communicated with the gas ejector pipe and protrudes out of a burner base are arranged on the burner base, a gas nozzle which can spray the gas in the gas ejector pipe is arranged above a panel, a burner upper cover which encloses an air flow cavity is also connected on the burner base, the burner upper cover is sleeved outside the gas spray pipe, an air blower flow passage which is communicated with the air flow cavity is formed between the burner upper cover and the outer wall of the gas spray pipe, a blower which can introduce external air into the air flow cavity is connected on the burner and is positioned below the panel, a distributor is connected on the burner upper cover, the distributor is provided with a mixed gas flow channel through which air in the air flow channel and gas in the gas nozzle can pass, and the upper end of the mixed gas flow channel is connected with a fire cover. The air-blowing burner provided by the invention can effectively prevent gas leakage and backfire, primary air is supplemented fully, the air blower is far away from a gas nozzle, the temperature rise of the air blower is low, and the reliability is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a burner for gas-cooker that flame stability is good is provided to above-mentioned prior art current situation.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: this a combustor for gas-cooker including:

the base is provided with a first concave cavity in the center, and a first ejector is arranged in the center of the first concave cavity;

the method is characterized in that:

the first cavity is connected with an external air supply part;

the second concave cavity is arranged on the periphery of the first concave cavity of the base;

the injection pipe is communicated with the second concave cavity;

the second ejector is adapted to the gas inlet end of the injection pipe;

the connecting body is arranged on the base, can cover the first cavity and the second cavity, comprises a disk body, a vertical gas channel is arranged at the central position of the disk body corresponding to the first cavity, the disk body further comprises at least two first transmission channels which are communicated with the gas channel and are distributed at intervals along the circumferential direction, and a second transmission channel which is positioned below the first transmission channels and is independent of the first transmission channels; and

the fire cover is arranged on the connecting body, and a first gas mixing chamber positioned in the center and a second gas mixing chamber positioned on the periphery are formed between the fire cover and the connecting body; the fire cover is provided with a main fire hole corresponding to the second gas mixing chamber along the circumferential direction, a flame stabilizing hole corresponding to the first gas mixing chamber is further formed below the main fire hole, and the first transmission channel is used for transmitting the mixed primary air and gas from the gas channel to the second gas mixing chamber and the main fire hole; and the second transmission channel is used for transmitting the mixed primary air and gas to the first gas mixing chamber and the flame stabilizing holes from the second concave cavity.

In order to better supplement the secondary air to the first air mixing chamber and the second air mixing chamber, preferably, a gap between adjacent first transmission channels and/or adjacent second transmission channels is communicated with the outside to form a secondary air inlet channel for supplementing air to the periphery of the first air mixing chamber and the inner periphery of the second air mixing chamber.

In order to realize the independence of the gas channels of the first gas mixing chamber and the second gas mixing chamber by the arrangement of the connecting body, preferably, the connecting body comprises an inner peripheral wall surface which is positioned at the periphery of the gas channel and vertically extends upwards, the inner peripheral wall surface is connected with the adjacent first transmission channel, and a connecting port for communicating the second cavity and the first gas mixing chamber is formed by the inner peripheral wall of the inner peripheral wall surface and the outer peripheral wall of the gas channel in a surrounding manner.

Furthermore, the fire cover comprises an inner ring fire cover which is positioned in the center and corresponds to the first gas mixing chamber, and the connecting body supports the inner ring fire cover through the inner peripheral wall surface. Wherein the inner ring fire lid corresponds is the ejector tube and the second ejector that naturally draw and penetrate, and then avoids the instability of the primary air of inner ring fire lid.

Further, the fire cover comprises an outer ring fire cover positioned on the periphery, the outer ring fire cover comprises a fire cover body, a gas mixing cavity corresponding to the second gas mixing cavity is formed between the annular top wall of the fire cover body and the inner ring wall and the outer ring wall, the inner ring wall and the outer ring wall vertically or obliquely extend downwards from the inner edge and the outer edge of the annular top wall, the gas inlet end of the flame stabilizing hole is positioned on the bottom wall of the outer ring wall, the gas outlet end of the flame stabilizing hole is positioned on the outer wall of the outer ring wall, and the main fire hole is also arranged on the outer wall of the outer ring wall and positioned above the gas outlet end of the flame stabilizing hole. Wherein main fire hole corresponds the second and mixes the gas chamber, then provides primary air through outside air feed portion, and the volume of primary air in main fire hole is controllable, and in addition, the flame stabilizing hole draws through nature and penetrates and provide primary air and can guarantee its stability, and the main fire that main fire hole formed can be held to more stable flame stabilizing hole, finally makes the flame stabilizing effect improvement of flame stabilizing hole to main fire hole.

In order to better realize the relative independence of the main fire hole and the flame stabilizing hole, preferably, the transmission end of the second transmission channel is more protruded than the transmission end of the first transmission channel, the flame stabilizing device further comprises a connecting ring respectively connected to the ends of the second transmission channel and the first transmission channel, the connecting body further comprises an outer peripheral wall surface located on the inner peripheral wall surface, and the outer ring fire cover is connected to the connecting body through the connecting ring and the outer peripheral wall surface.

Further, the connecting ring comprises an inner connecting wall and an outer connecting wall which are arranged at intervals, the lower end of the inner connecting wall is higher than the lower end of the outer connecting wall, an interval is formed between the lower end of the inner connecting wall and the tail end of the second transmission channel, and the interval forms an opening for transmitting the mixed primary air and gas from the second cavity to the flame stabilizing hole.

Further, the bottom wall of the outer ring fire cover covers the upper ends of the inner connecting wall and the outer connecting wall.

In order to conveniently connect the connection ring to the transmission end of the second transmission passage, it is preferable that a spacer is provided between the inner connection wall and the outer connection wall at a circumferential interval, and the connection ring is connected to the transmission end of the second transmission passage by a fastener passing through the spacer.

Compared with the prior art, the utility model has the advantages of: the utility model provides a combustor for gas-cooker, wherein main flame vent and the steady flame hole of fire lid are for having respective gas mixing chamber and air feed portion and the sprayer that corresponds respectively, and steady flame hole draws through the nature of second sprayer and penetrates and provide primary air, and main flame vent provides primary air through outside air feed portion, the primary air's in main flame vent volume is controllable, burn with higher burning load, and then avoid the primary air unstability in steady flame hole, the main fire that main flame hole formed can be pulled to more stable steady flame hole, finally make the steady flame effect of steady flame hole to main flame hole improve.

Drawings

FIG. 1 is a schematic structural diagram of a burner according to an embodiment of the present invention;

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

FIG. 3 is an exploded view of FIG. 1;

FIG. 4 is a schematic structural view of an outer ring fire cover in an embodiment of the present invention;

FIG. 5 is a cross-sectional view of an angle of an embodiment of a connector of the present invention;

FIG. 6 is a schematic structural view of another embodiment of the connecting body of the present invention;

fig. 7 is a cross-sectional view of fig. 6.

Detailed Description

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

As shown in FIGS. 1 to 7, the preferred embodiment of the present invention is shown. The burner for the gas stove in the embodiment comprises a base 1 with a first cavity 11 positioned in the center, wherein a first ejector 111 is arranged in the center of the first cavity 11, and the first cavity 11 is connected with an external gas supply part 3; the second cavity 12 is arranged on the periphery of the first cavity 11 of the base 1, the second cavity 12 is communicated with the injection pipe 4, and the second ejector 121 is adapted to the air inlet end of the injection pipe 4; in addition, the present embodiment further includes a connecting body 5 disposed on the base 1 and capable of covering the first cavity 11 and the second cavity 12, specifically, the connecting body 5 includes a disk body, a vertical gas channel 51 is disposed at a central position of the disk body corresponding to the first cavity 11, the disk body further includes at least two first transmission channels 52 communicated with the gas channel 51 and distributed at intervals along a circumferential direction, and a second transmission channel 53 located below the first transmission channels 52 and independent therefrom; the fire cover is arranged on the connecting body 5, and a first air mixing chamber 71 positioned in the center and a second air mixing chamber 61 positioned on the periphery are formed between the fire cover and the connecting body 5; the fire cover is provided with main fire holes 631 corresponding to the second gas mixing chamber 61 along the circumferential direction, and is further provided with flame stabilizing holes 632 corresponding to the first gas mixing chamber 71 below the main fire holes 631, and the first transmission channel 52 is used for transmitting the mixed primary air and gas from the gas channel 51 to the second gas mixing chamber 61 and the main fire holes 631; the second transmission channel 53 is used for transmitting the mixed primary air and gas from the second cavity 12 to the first gas mixing chamber 71 and the flame stabilizing hole 632, wherein the main fire hole 631 of the fire cover has the corresponding second gas mixing chamber 61 and the first injector 111, and the external gas supply part 3 such as a blower is used for providing the primary air, so that the amount of the primary air of the main fire hole 631 is controllable, the primary air is combusted with higher combustion load, the flame stabilizing hole 632 corresponds to the first gas mixing chamber 71 independent of the second gas mixing chamber 61, and the flame stabilizing hole 632 provides the primary air through natural injection of the second injector 121, thereby preventing the primary air of the flame stabilizing hole 632 from being unstable, and the more stable flame stabilizing hole 632 can pull the main fire formed by the main fire hole 631.

In order to better supplement the secondary air to the first air mixing chamber 71 and the second air mixing chamber 61, the gap between the adjacent first transmission channel 52 and/or the adjacent second transmission channel 53 is communicated with the outside, wherein the first transmission channel 52 and the second transmission channel 53 are vertically arranged in a straight line to form a secondary air inlet channel 8 for supplementing air to the periphery of the first air mixing chamber 71 and the inner periphery of the second air mixing chamber 61. In order to realize the independence of the gas channel 51 of the first gas mixing chamber 71 and the second gas mixing chamber 61 by the arrangement of the connecting body 5, the connecting body 5 comprises an inner peripheral wall surface 54 which is positioned at the periphery of the gas channel 51 and extends vertically upwards, the inner peripheral wall surface 54 is connected with the adjacent first transmission channel 52, and a connecting port 55 for communicating the second cavity 12 and the first gas mixing chamber 71 is formed between the inner peripheral wall of the inner peripheral wall surface 54 and the outer peripheral wall of the gas channel 51. And for the combustor to have inside and outside ring fire, the fire lid is including being located the central authorities, corresponding inner ring fire lid 7 of first gas mixing chamber 71, and connector 5 supports inner ring fire lid 7 through interior cliff side 54, and wherein inner ring fire lid 7 corresponds is the ejector tube 4 and the second sprayer 121 that naturally draw and penetrate, and then avoids the instability of the primary air of inner ring fire lid 7. In addition, the fire cover further comprises an outer ring fire cover 6 located at the periphery, the outer ring fire cover 6 comprises a fire cover body, a gas mixing cavity corresponding to the second gas mixing chamber 61 is formed between an annular top wall of the fire cover body and an inner ring wall 62 and an outer ring wall 63 which vertically or obliquely extend downwards from the inner edge and the outer edge of the annular top wall, a gas inlet end 6322 of the flame stabilizing hole 632 is located on the bottom wall 60 of the outer ring wall 63, a gas outlet end 6321 of the flame stabilizing hole 632 is located on the outer wall of the outer ring wall 63, and the main fire hole 631 is also formed in the outer wall of the outer ring wall 63 and located above the gas outlet end 6321 of the flame stabilizing hole 632. Wherein the main fire hole 631 corresponds to the second air mixing chamber 61, and then provides primary air through the outside air supply part 3, the amount of the primary air of the main fire hole 631 is controllable, and the flame stabilizing hole 632 provides primary air through natural injection to ensure the stability thereof, and the more stable flame stabilizing hole 632 can pull the main fire formed by the main fire hole 631, so that the flame stabilizing effect of the flame stabilizing hole 632 on the main fire hole 631 is finally improved.

Finally, in order to better realize the relative independence of the main flame hole 631 and the flame stabilizing hole 632, the transmission end of the second transmission channel 53 protrudes more than the transmission end of the first transmission channel 52, the connection device further comprises a connection ring 9 connected to the second transmission channel 53 and the end of the first transmission channel 52, the connection body 5 further comprises an outer peripheral wall surface 56 located on the inner peripheral wall surface 54, and the outer fire cover 6 is connected to the connection body 5 through the connection ring 9 and the outer peripheral wall surface 56, wherein the connection ring 9 comprises an inner connection wall 91 and an outer connection wall 92 which are arranged at an inner interval and an outer interval, the lower end of the inner connection wall 91 is higher than the lower end of the outer connection wall 92, the lower end of the inner connection wall 91 is spaced from the end of the second transmission channel 53, and the interval forms an opening 911 for transmitting the mixed primary air and fuel gas from the second cavity 12 to the flame stabilizing hole 632. And the bottom wall 60 of the outer ring wall 63 of the outer ring fire cover 6 covers the upper ends of the inner connecting wall 91 and the outer connecting wall 92. In order to conveniently connect the connection ring 9 to the transmission end of the second transmission passage 53, it is preferable that a spacer 93 is provided between the inner connection wall 91 and the outer connection wall 92 at a circumferential interval, and the connection ring 9 is connected to the transmission end of the second transmission passage 53 by fastening members passing through the spacer 93.

As described above, the paths of the primary air, gas and mixed primary air and gas inside the burner are as follows: since the first injector 111 is connected to the gas passage 51 of the connection body 5 and is transferred to the second air mixing chamber 61 through the first transfer passage 52, the required primary air is supplied through the external air supply part 3 such as a blower, the premixed primary air and gas finally enter the second air mixing chamber 61, and the mixed primary air and gas finally pass through the main fire hole 631 of the outer fire cover 6 and are ignited together with the secondary air of the external environment to form a main fire. The flame stabilizing hole 632 is obtained by natural injection of the second injector 121 and the injection pipe 4, so that fluid separation of the first and second

gas mixing chambers

71 and 61 is realized, and then the first and second gas mixing chambers can be independently supplied to allow a user to independently control inflow of a fuel mixture in the gas passage 51 of the connecting body 5 and the injection pipe 4, and the flame stabilizing hole 632 is obtained by natural injection of the second injector 121, so that the amount of the primary air of the flame stabilizing hole 632 is more controllable and stable than that of the primary air of the main flame hole 631, thereby improving the flame stabilizing performance of the flame stabilizing hole 632, and meanwhile, the gas of the inner ring flame cover 7 enters from the second injector 121 and the second cavity 12 through the opening 911, the required primary air is obtained through natural injection, stable combustion of the inner ring fire cover 7 can be realized, and fire can be better protected.

Claims

1. A burner for a gas range, comprising:

the device comprises a base (1) and a first ejector, wherein the base is provided with a first cavity (11) in the center, and a first ejector (111) is arranged in the center of the first cavity (11);

the method is characterized in that:

the first cavity (11) is connected with an external air supply part (3);

the second cavity (12) is arranged at the periphery of the first cavity (11) of the base (1);

the injection pipe (4) is communicated with the second concave cavity (12);

the second ejector (121) is adapted to the gas inlet end of the injection pipe (4);

the connecting body (5) is arranged on the base (1), can cover the first cavity (11) and the second cavity (12), comprises a disc body, a vertical gas channel (51) is arranged at the central position of the disc body corresponding to the first cavity (11), and further comprises at least two first transmission channels (52) which are communicated with the gas channel (51) and are distributed at intervals along the circumferential direction, and a second transmission channel (53) which is positioned below the first transmission channels (52) and is independent of the first transmission channels; and

the fire cover is arranged on the connecting body (5), and a first air mixing chamber (71) positioned in the center and a second air mixing chamber (61) positioned on the periphery are formed between the fire cover and the connecting body (5); the fire cover is provided with a main fire hole (631) corresponding to the second gas mixing chamber (61) along the circumferential direction, a flame stabilizing hole (632) corresponding to the first gas mixing chamber (71) is further formed below the main fire hole (631), and the first transmission channel (52) is used for transmitting the mixed primary air and gas from the gas channel (51) to the second gas mixing chamber (61) and the main fire hole (631); the second transmission channel (53) is used for transmitting the mixed primary air and gas from the second cavity (12) to the first gas mixing chamber (71) and the flame stabilizing holes (632).

2. Burner for gas cooktops according to claim 1, characterized in that: gaps between the adjacent first transmission channels (52) and/or the adjacent second transmission channels (53) are communicated with the outside to form secondary air inlet channels (8) for supplementing air to the periphery of the first air mixing chamber (71) and the inner periphery of the second air mixing chamber (61).

3. Burner for gas cooktops according to claim 2, characterized in that: the connecting body (5) comprises an inner peripheral wall surface (54) which is positioned at the periphery of the gas channel (51) and vertically extends upwards, the inner peripheral wall surface (54) is connected with the adjacent first transmission channel (52), and a connecting port (55) for communicating the second cavity (12) and the first gas mixing chamber (71) is formed by the inner peripheral wall of the inner peripheral wall surface (54) and the outer peripheral wall of the gas channel (51).

4. Burner for gas cooktops according to claim 3, characterized in that: the fire cover comprises an inner ring fire cover (7) which is positioned in the center and corresponds to the first gas mixing chamber (71), and the connecting body (5) supports the inner ring fire cover (7) through the inner peripheral wall surface (54).

5. Burner for gas cooktops according to claim 4, characterized in that: the fire cover comprises an outer ring fire cover (6) located on the periphery, the outer ring fire cover (6) comprises a fire cover body, a gas mixing cavity corresponding to the second gas mixing cavity (61) is formed between an annular top wall of the fire cover body and an inner ring wall (62) and an outer ring wall (63) which vertically or obliquely extend downwards from the inner side edge and the outer side edge of the annular top wall, a gas inlet end (6322) of the flame stabilizing hole (632) is located on the bottom wall (60) of the outer ring wall (63), a gas outlet end (6321) of the flame stabilizing hole (632) is located on the outer wall of the outer ring wall (63), and the main fire hole (631) is also formed in the outer wall of the outer ring wall (63) and located above the gas outlet end (6321) of the flame stabilizing hole (632).

6. Burner for gas cooktops according to claim 5, characterized in that: the transmission tail end of the second transmission channel (53) is more convex than the transmission tail end of the first transmission channel (52), the fire cover device further comprises a connecting ring (9) which is respectively connected to the tail ends of the second transmission channel (53) and the first transmission channel (52), the connecting body (5) further comprises an outer peripheral wall surface (56) which is located on the inner peripheral wall surface (54), and the outer fire cover (6) is connected to the connecting body (5) through the connecting ring (9) and the outer peripheral wall surface (56).

7. Burner for gas cooktops according to claim 6, characterized in that: the connecting ring (9) comprises an inner connecting wall (91) and an outer connecting wall (92) which are arranged at an inner interval and an outer interval, the lower end of the inner connecting wall (91) is higher than the lower end of the outer connecting wall (92), an interval is arranged between the lower end of the inner connecting wall (91) and the tail end of the second transmission channel (53), and the interval forms an opening (911) for transmitting mixed primary air and gas to the flame stabilizing hole (632) from the second cavity (12).

8. Burner for gas cooktops according to claim 7, characterized in that: the bottom wall (60) of the outer ring wall (63) of the outer ring fire cover (6) covers the upper ends of the inner connecting wall (91) and the outer connecting wall (92).

9. Burner for gas cooktops according to claim 8, characterized in that: the inner connecting wall (91) and the outer connecting wall (92) are provided with spacing blocks (93) at intervals along the circumferential direction, and the connecting ring (9) is connected to the transmission end of the second transmission channel (53) through the spacing blocks (93) by fasteners.