A gas burner

Abstract

The present invention relates to a gas burner, comprising an air mixing chamber, an outer ring fire cover having an annular fire cover body, and an inner ring fire cover, the top of the air mixing chamber is provided with an inner ring air mixing chamber and an outer ring air mixing chamber opening upwards in sequence from the inside to the outside, the inner ring fire cover and the outer ring fire cover are respectively covered on the inner ring air mixing chamber and the outer ring air mixing chamber, a secondary air annular channel is provided between the inner ring air mixing chamber and the outer ring air mixing chamber, and a secondary air supplement hole communicating with the secondary air annular channel is provided on the side wall of the air mixing chamber, a fire transfer channel is radially penetrated on the fire cover body, and the fire transfer channel is communicated with the corresponding secondary air supplement hole. Compared with the prior art, the present invention can supplement air to the fire transfer channel through the secondary air supplement hole, thereby promoting the efficient combustion of the fire transfer flame in the fire transfer channel, and then improving the fire transfer speed.

Description

Technical Field

[0001] The invention relates to the field of gas stoves, and in particular to a gas burner. Background Art

[0002] Existing gas burners are generally provided with fire transfer structures such as fire transfer grooves and fire transfer holes. For example, Chinese invention patent No. ZL201310302720.9 (authorization announcement No. CN103388843A) discloses a new type of high-efficiency, energy-saving and environmentally friendly burner, which includes a main body, which includes an outer ring flame generator forming an outer ring mixing chamber, an outer ring fire cover is provided above the outer ring mixing chamber, and the outer ring fire cover is provided with a fire transfer groove.

[0003] As the combustion efficiency of gas stoves continues to improve, the current common methods for improving combustion efficiency include the following: (1) lowering the height of the pot support; (2) adjusting the air damper. Among them, lowering the height of the pot support to improve the combustion efficiency of the gas stove will cause the problem that the inner ring fire cannot be transmitted to the outer ring, or cause incomplete combustion; adjusting the air damper cannot solve the problem of high error rate of fire transmission. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a gas burner with a fast flame transfer speed in view of the prior art.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a gas burner, comprising an air mixing chamber, an outer ring fire cover with an annular fire cover body and an inner ring fire cover, the top of the above-mentioned air mixing chamber is provided with an inner ring air mixing cavity and an outer ring air mixing cavity opening upward from the inside to the outside, the above-mentioned inner ring fire cover and the outer ring fire cover are respectively covered on the inner ring air mixing cavity and the outer ring air mixing cavity, a secondary air annular channel is provided between the above-mentioned inner ring air mixing cavity and the outer ring air mixing cavity, and a secondary air replenishment hole communicating with the above-mentioned secondary air annular channel is provided on the side wall of the air mixing chamber, characterized in that a fire transfer channel is radially penetrated on the fire cover body, and the fire transfer channel is communicated with the corresponding secondary air replenishment hole.

[0006] Preferably, the fire transfer channel is connected to the corresponding secondary air replenishment hole through a first air flow channel, and the extension direction of the first air flow channel is perpendicular to the extension direction of the above-mentioned fire transfer channel, so that the air in the secondary air replenishment hole can be more efficiently replenished into the fire transfer channel.

[0007] Preferably, a first gas hole penetrating to the outer ring gas mixing cavity is provided on the bottom surface of the fire transfer channel, so that gas can be added to the fire transfer channel through the first gas hole, further accelerating the fire transfer speed.

[0008] Preferably, a gas mixing groove is provided on the bottom surface of the fire transfer channel, so that the gas supplemented by the first gas hole and the air supplemented by the first air flow channel can flow, stir and mix in the gas mixing groove, thereby enabling the gas to burn fully.

[0009] Preferably, the gas mixing groove is curved in shape, so as to further increase the collision probability between gas molecules and air molecules, further improve the flow, stirring and mixing of the two in the gas mixing groove, and make the gas burn more fully.

[0010] Further, preferably, two ends of the gas mixing groove extend to two ends of the fire transfer channel and are opened respectively, and the first air flow channel and the gas holes are arranged on both sides of the gas mixing groove respectively.

[0011] Preferably, a first air inlet hole communicating with the outside is provided on the side wall of the fire transfer channel, through which air can be replenished from the side of the fire transfer channel to the inside of the fire transfer channel.

[0012] Preferably, a second gas hole communicating with the outer ring gas mixing chamber is provided on the side wall of the fire transfer channel, through which gas can be replenished from the side of the fire transfer channel to the inside of the fire transfer channel.

[0013] Preferably, the top of the fire transfer channel is closed, which can replenish more air compared with a traditional open fire transfer channel, thereby accelerating the fire transfer speed.

[0014] Preferably, a second air flow channel connected to the secondary air replenishment hole is provided on the top wall of the fire transfer channel. The second air flow channel can replenish the air in the secondary air replenishment hole to the top of the fire cover body, and can also guide the overflow dripping to the top of the fire cover body from the second air flow channel to the secondary air replenishment hole for external discharge.

[0015] Preferably, a second air inlet hole penetrating the top wall of the fire transfer channel is provided, so that the air on the top of the fire cover can be replenished into the fire transfer channel.

[0016] The above-mentioned first airflow channel can be implemented in many ways. Preferably, a first through hole is opened on the inner bottom surface of the fire transfer channel, and the hole wall of the first through hole extends vertically downward to form a first connecting sleeve, and the inner cavity of the first connecting sleeve forms the above-mentioned first airflow channel.

[0017] The above-mentioned second airflow channel can be implemented in many ways. Preferably, a second through hole is opened on the top wall of the fire transfer channel, and the hole wall of the second through hole extends vertically downward to form a second connecting sleeve, and the inner cavity of the second connecting sleeve forms the above-mentioned second airflow channel.

[0018] Compared with the prior art, the advantages of the present invention are: a fire transfer channel is radially penetrated on the fire cover body of the present invention, and the fire transfer channel is connected to the corresponding secondary air replenishment hole, so that air can be replenished to the fire transfer channel through the secondary air replenishment hole, thereby promoting efficient combustion of the fire transfer flame in the fire transfer channel, and then improving the fire transfer speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a burner in an embodiment of the present invention;

[0020] Figure 2 for Figure 1 A schematic diagram of the structure in another direction;

[0021] Figure 3 for Figure 1 A schematic diagram of the structure in another direction;

[0022] Figure 4 This is a structural exploded view of a burner in an embodiment of the present invention;

[0023] Figure 5 for Figure 4 A schematic diagram of the structure in another direction;

[0024] Figure 6 It is a schematic diagram of the structure of the fire cover in an embodiment of the present invention;

[0025] Figure 7 for Figure 6 A schematic diagram of the structure in another direction;

[0026] Figure 8 for Figure 7 Cross-sectional view along AA direction;

[0027] Fig. 9 for Figure 7 Cross-sectional view along direction BB;

[0028] Fig.10 for Figure 7 Cross-sectional view along CC direction;

[0029] Fig.11 for Figure 8 Enlarged view of part I;

[0030] Fig.12 for Fig. 9 Enlarged view of part II;

[0031] Fig.13 for Fig.10 Enlarged view of part III;

[0032] Fig.14 is a cross-sectional view of a fire cover in an embodiment of the present invention;

[0033] Fig.15 for Fig.14 Enlarged view of part IV. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below with reference to the accompanying drawings.

[0035] like Figures 1 to 15 As shown, a gas burner comprises a gas mixing chamber 2, an outer ring fire cover having an annular fire cover body 1 and an inner ring fire cover (not shown), the top of the gas mixing chamber 2 is provided with an inner ring gas mixing chamber 23 and an outer ring gas mixing chamber 22 which are open upwards in sequence from the inside to the outside, the inner ring fire cover and the outer ring fire cover are respectively covered on the inner ring gas mixing chamber 23 and the outer ring gas mixing chamber 22, a secondary air annular channel 24 is provided between the inner ring gas mixing chamber 23 and the outer ring gas mixing chamber 22, and a secondary air replenishment hole 21 which communicates with the secondary air annular channel 24 is provided on the side wall of the gas mixing chamber 2. Four outer ring air inlets 221 are provided on the outer ring gas mixing chamber 22 at intervals along the circumferential direction, and an inner ring air inlet 231 is provided on the inner ring gas mixing chamber 23.

[0036] The fire cover body 1 is provided with a fire transmission channel 3 in the radial direction, and the fire transmission channel 3 is connected with the corresponding secondary air supply hole 21. In this embodiment, a protruding block 30 protruding inward is formed on the upper part of the fire cover body 1, and the fire transmission channel 3 is provided on the protruding block 30, and the cross section of the fire transmission channel 3 is square and expands from the inside to the outside, so that more air can be sucked through its outer port to promote the combustion of the fire transmission flame in the fire transmission channel 3. Further, the fire cover body 1 includes an annular top wall 101 and an inner annular wall 103 and an outer annular wall 102 formed by the inner and outer edges of the annular top wall 101 extending vertically or obliquely downward, respectively. The outer annular wall 102 is provided with a main fire hole 11, and the channel of the main fire hole 11 extends obliquely upward from the inside to the outside. The annular top wall 101, the inner annular wall 103 and the outer annular wall 102 enclose a gas mixing space 10, and the gas mixing space 10 is located above the outer annular gas mixing chamber 22.

[0037] In addition, the outer ring wall 102 is provided with a first flame stabilizing groove 12 and a second flame stabilizing groove 13 extending along the circumferential direction of the outer ring wall 102, the first flame stabilizing groove 12 penetrates the hole wall of the main fire hole 11, and further includes a flame stabilizing hole 131, the flame stabilizing hole 131 penetrates from the bottom wall of the first flame stabilizing groove 12 to the second flame stabilizing groove 13 and continues to penetrate to the bottom of the outer ring wall 102, and the flame stabilizing hole 131 is communicated with the outer ring gas mixing chamber 22. In this embodiment, two flame stabilizing grooves are provided, wherein the first flame stabilizing groove 12 penetrates into the interior of the main fire hole 11, so that a better flame stabilizing effect can be obtained.

[0038] The above-mentioned fire transfer channel 3 is connected with the corresponding secondary air replenishment hole 21 through the first airflow channel 90, and the extension direction of the first airflow channel 90 is perpendicular to the extension direction of the above-mentioned fire transfer channel 3. Specifically, a first through hole 91 is opened on the inner bottom surface of the fire transfer channel 3, and the hole wall of the first through hole 91 extends vertically downward to form a first connecting sleeve 9, and the inner cavity of the first connecting sleeve 9 forms the above-mentioned first airflow channel 90. In this way, air can be replenished from the secondary air replenishment hole 21 to the fire transfer channel 3 through the first airflow channel 90, thereby promoting the efficient combustion of the fire transfer flame in the fire transfer channel 3, and then increasing the fire transfer speed. In this embodiment, the first connecting sleeve 9 is one.

[0039] In order to further speed up the fire transfer speed, a first gas hole 81 penetrating to the outer ring gas mixing chamber 22 is opened on the bottom surface of the fire transfer channel 3, and second gas holes 82 are opened on the left and right side walls of the fire transfer channel 3 respectively. The above-mentioned protrusion 30 protrudes downward from the outer ring gas mixing chamber 22, and each of the above-mentioned second gas holes 82 respectively penetrates to the protruding part of the protrusion 30 and communicates with the outer ring gas mixing chamber 22 respectively.

[0040] In this embodiment, the top of the fire transmission channel 3 is closed, that is, in this embodiment, the fire transmission channel 3 is open inside and outside respectively, and a second air flow channel 40 connected to the above-mentioned secondary air replenishment hole 21 is penetrated on the top wall of the fire transmission channel 3. The second air flow channel 40 can replenish the air in the secondary air replenishment hole 21 to the top of the fire cover body 1. In addition, the overflow dripping to the top of the fire cover body 1 can also be directed from the second air flow channel 40 to the secondary air replenishment hole 21 and discharged outside. Specifically, a second through hole 41 is opened on the top wall of the fire transmission channel 3, and the hole wall of the second through hole 41 extends vertically downward to form a second connecting sleeve 4, and the inner cavity of the second connecting sleeve 4 forms the above-mentioned second air flow channel 40. In this embodiment, the above-mentioned second connecting sleeves 4 are two arranged at intervals.

[0041] Furthermore, first air inlet holes 7 communicating with the outside are respectively provided on the side walls of the fire transmission channel 3, and air can be replenished from both sides of the fire transmission channel 3 to the inside of the fire transmission channel 3 through the first air inlet holes 7. A second air inlet hole 6 penetrating the top wall of the fire transmission channel 3 is provided, so that the air on the top of the fire cover body 1 can be replenished into the fire transmission channel 3.

[0042] In addition, a gas mixing groove 5 is provided on the bottom surface of the fire transmission channel 3, so that the gas supplemented by the first gas hole 81 and the air supplemented by the first gas flow channel 90 can flow, stir and mix in the gas mixing groove 5, so that the gas can be fully burned. Further, the shape of the gas mixing groove 5 is curved. Specifically, the gas mixing groove 5 extends in a wave shape along the length direction of the fire transmission channel 3, and the first gas flow channel 90 and the first gas hole 81 are respectively arranged on both sides of the gas mixing groove 5. The two ends of the gas mixing groove 5 extend to the two ends of the fire transmission channel 3 and are opened respectively, so that the collision probability of gas molecules and air molecules can be further increased, and the flow, stirring and mixing of the two in the gas mixing groove 5 can be further improved, so that the gas can burn more fully.

[0043] Furthermore, an auxiliary gas hole 83 is provided on the bottom surface of the above-mentioned fire transfer channel 3. The auxiliary gas hole 83 is provided at the inner end of the above-mentioned protrusion 30, and connects the above-mentioned outer ring gas mixing chamber 22 with the gas mixing groove 5, so that the gas can be directly added to the gas mixing groove 5, and the efficient mixing of gas and air can be better promoted while adding gas to the fire transfer channel 3.

[0044] In order to facilitate the positioning and installation of the outer ring fire cover on the gas mixing chamber 2, the bottom surface of the outer ring gas mixing chamber 22 is respectively provided with a first through hole 26 and a second through hole 25 which are in communication with the corresponding secondary air supply hole 21. The first through hole 26 is for the insertion of the first connecting sleeve 9, and the second through hole 25 is for the insertion of the second connecting sleeve 4. During installation, the positioning of the outer ring fire cover and the gas mixing chamber can be achieved by simply inserting each connecting sleeve into the corresponding through hole. In this embodiment, there is one first through hole 26 and two second through holes 25.

Claims

1. A gas burner, comprising a gas mixing chamber (2), an outer ring fire cover having an annular fire cover body (1), and an inner ring fire cover, wherein the top of the gas mixing chamber (2) is provided with an inner ring gas mixing cavity (23) and an outer ring gas mixing cavity (22) which are open upwards in sequence from the inside to the outside, the inner ring fire cover and the outer ring fire cover are respectively covered on the inner ring gas mixing cavity (23) and the outer ring gas mixing cavity (22), a secondary air annular channel (24) is provided between the inner ring gas mixing cavity (23) and the outer ring gas mixing cavity (22), and a secondary air replenishment hole (21) which is communicated with the secondary air annular channel (24) is provided on the side wall of the gas mixing chamber (2), characterized in that: The fire cover body (1) is provided with a fire transmission channel (3) in the radial direction, and the fire transmission channel (3) is connected to the corresponding secondary air supply hole (21); The fire transmission channel (3) is connected to the corresponding secondary air supply hole (21) through a first air flow channel (90), and the extension direction of the first air flow channel (90) is perpendicular to the extension direction of the fire transmission channel (3); A first gas hole (81) is provided on the bottom surface of the fire transmission channel (3) and penetrates to the outer ring gas mixing chamber (22); A gas mixing groove (5) is provided on the bottom surface of the fire transmission channel (3); The gas mixing groove (5) has a curved shape; The top of the fire transmission channel (3) is closed.

2. The gas burner according to claim 1, characterized in that: The two ends of the gas mixing groove (5) extend to the two ends of the fire transfer channel (3) and are open respectively. The first air flow channel (90) and the first gas hole (81) are arranged on both sides of the gas mixing groove (5).

3. The gas burner according to claim 1, characterized in that: A first air inlet (7) communicating with the outside is provided on the side wall of the fire transmission channel (3).

4. The gas burner according to claim 1, characterized in that: A second gas hole (82) communicating with the outer ring gas mixing chamber (22) is provided on the side wall of the fire transmission channel (3).

5. The gas burner according to claim 1, characterized in that: A second air flow channel (40) connected to the secondary air supply hole (21) is formed through the top wall of the fire transmission channel (3).

6. The gas burner according to claim 1, characterized in that: A second air inlet hole (6) penetrating the top wall of the fire transfer channel (3) is provided on the top wall.

7. The gas burner according to claim 1, characterized in that: A first through hole (91) is provided on the inner bottom surface of the fire transmission channel (3), and the hole wall of the first through hole (91) extends vertically downward to form a first connecting sleeve (9), and the inner cavity of the first connecting sleeve (9) forms the above-mentioned first airflow channel (90).

8. The gas burner according to claim 5, characterized in that: A second through hole (41) is provided on the top wall of the fire transmission channel (3), and the hole wall of the second through hole (41) extends vertically downward to form a second connecting sleeve (4), and the inner cavity of the second connecting sleeve (4) forms the above-mentioned second air flow channel (40).

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