Gas appliance

Abstract

The gas appliance comprises a shell, furnace ends and a control valve, the furnace ends and the control valve are arranged on the shell, centripetal combustion areas and centrifugal combustion areas are arranged on the furnace ends, the number of the furnace ends is at least two, the centripetal combustion areas of the furnace ends face the center of the corresponding furnace end arrangement shape, and the control valve controls the furnace ends to at least work in the centripetal combustion areas. And flames of the centripetal combustion areas of all the furnace ends face the center to form a central combustion area. The centripetal combustion areas form the central combustion area, and the requirement for heating the central area of the large-diameter cookware is met.

Description

Technical Field

[0001] The present invention relates to a gas appliance. Background Art

[0002] There are some existing large-diameter cookware placed on the gas appliance for use, that is, the diameter of the cookware allows it to be placed on multiple burners simultaneously. In the traditional multi-burner gas appliance, during the use of the above-mentioned cookware, the burner can only heat the outer periphery of the cookware, resulting in a low temperature at the center of the cookware and poor cooking effect.

[0003] Patent CNN220061742U discloses a multi-jet burner, including a bottom plate, an upper shell, a plurality of outer-ring jet combustion caps, a central jet combustion cap, and longitudinal oxygen inlet holes; a gas distribution cavity is formed in the middle between the upper shell and the bottom plate; a central upper air hole is opened at the center of the upper shell and covered with the central jet combustion cap; a plurality of concave and radially extending Y-shaped gas distribution channels are opened at the bottom of the upper shell, and the front ends of which are all communicated with the gas distribution cavity; outer-ring air outlet holes are opened at the top of the upper shell at the ends of the two branch channels at the end of each Y-shaped gas distribution channel and communicated with the branch channel, and all the top orifices of the outer-ring air outlet holes are covered with outer-ring jet combustion caps; longitudinal oxygen inlet holes are arranged between adjacent two Y-shaped gas distribution channels; the Y-shaped gas distribution channels of this product reduce the number of gas distribution channels opened and the structural complexity of opening the gas distribution channels; the overall gas distribution is more uniform and the gas pressure of the gas flow is more balanced.

[0004] This kind of multi-jet burner is the same as the traditional burner, that is, it has inner-ring flame and outer-ring flame control, and its design still cannot meet the cooking requirements of large-diameter cookware. Summary of the Invention

[0005] The object of the present invention is to provide a gas appliance that meets the cooking requirements of large-diameter cookware.

[0006] The object of the present invention is achieved as follows.

[0007] A gas appliance, including a housing and burners and control valves arranged on the housing, the burners are provided with a centripetal combustion zone and a centrifugal combustion zone, there are at least two burners, the centripetal combustion zones of the burners all face the center of the arrangement shape of the corresponding burner, and the control valve controls the burners to at least have only the centripetal combustion zone working, and the flames of the centripetal combustion zones of all burners face the center to form a central combustion zone.

[0008] The present invention forms a central combustion zone through the centripetal combustion zone to meet the heating requirement of the central area of large-diameter cookware.

[0009] Further, the sum of the angles of the centripetal combustion zone and the centrifugal combustion zone is 360°, the angle of the centripetal combustion zone is 90 - 180°, and correspondingly, the angle of the centrifugal combustion zone is 270 - 180°.

[0010] Set the angle ranges of the centripetal combustion zone and the centrifugal combustion zone reasonably according to the number of burners.

[0011] Further, there are four burners, the four burners are arranged in a rectangular array, and the centripetal combustion zones of the four burners all face the center of the rectangular array.

[0012] The flames in the centripetal combustion zone converge towards the center to heat the central area of large-diameter cookware through the central combustion zone.

[0013] Further, the overlapping position of the central axes of the centripetal combustion zones of the four burners is the center of the rectangular array.

[0014] Further, the angle of the centripetal combustion zone is 120°, and correspondingly, the angle of the centrifugal combustion zone is 240°.

[0015] The four burners are arranged to provide a better heating space for the flames in the centripetal combustion zone.

[0016] Further, there are two burners, the two burners are arranged side by side, the centripetal combustion zones of the two burners are symmetrically arranged left and right, the angle of the centripetal combustion zone is 180°, and correspondingly, the angle of the centrifugal combustion zone is 180°.

[0017] The dual-burner setting meets the requirements of the central area of large-diameter cookware.

[0018] Further, the burner includes an air inlet seat, a burner cap seat and a burner cap. The burner cap seat sits on the air inlet seat. The centripetal combustion zone and the centrifugal combustion zone are provided on the burner cap seat. A burner cap sits on the burner cap seat and simultaneously sits above the centripetal combustion zone and the centrifugal combustion zone. The air inlet seat supplies gas independently to the centripetal combustion zone and the centrifugal combustion zone respectively. A concave combustion chamber is provided at the top of the burner cap seat. A second gas supply hole is provided at the center of the combustion chamber. An arc-shaped surrounding wall is provided on one side of the second gas supply hole. The two ends of the arc-shaped surrounding wall are respectively provided with partition walls along the radial direction of the burner cap seat. The ends of the partition walls extend to abut against the side wall of the combustion chamber. The arc-shaped surrounding wall and the partition walls divide the combustion chamber into the centripetal combustion zone and the centrifugal combustion zone. The second gas supply hole communicates with the centrifugal combustion zone. A first gas supply hole is provided at the middle part of the bottom surface of the combustion chamber corresponding to the centripetal combustion zone. A plurality of fire holes are provided on the side wall of the combustion chamber.

[0019] The centripetal combustion zone and the centrifugal combustion zone are easy and simple to form.

[0020] Further, a laterally concave notch is provided on the outer side of the burner cap seat corresponding to the centripetal combustion zone. The notch communicates with the centripetal combustion zone, and an ignition needle is provided at the notch.

[0021] The notch indicates the direction of the centripetal combustion zone, thereby facilitating the angular fitting installation of multiple burners.

[0022] Furthermore, a limiting bracket is provided at the bottom of the burner base. The burner base sits on the air intake seat through the limiting bracket, and an air intake channel is left between the burner base and the air intake seat. The air intake channel communicates with the mixing chamber of the air intake seat. The first air supply hole extends downward to form a first air guide cylinder, and the second air supply hole extends downward to form a second air guide cylinder. The air intake seat is provided with a first ejector tube and a second ejector tube. The outlet of the first ejector tube is located directly below the first air guide cylinder, and the outlet of the first ejector tube communicates with the first air guide cylinder through the mixing chamber. The outlet of the second ejector tube is located directly below the second air guide cylinder, and the outlet of the second ejector tube communicates with the second air guide cylinder through the mixing chamber.

[0023] The gas in the first ejector tube is ejected into the first air guide cylinder, and the gas in the second ejector tube is ejected into the second air guide cylinder. The outside air enters the mixing chamber through the air intake channel and then enters the corresponding first air guide cylinder and second air guide cylinder together with the gas. The mixing of the gas and air is repeated to ensure the full combustion of the gas.

[0024] Furthermore, the housing includes a panel and a bottom shell. The panel covers the bottom shell. The burner further includes a connecting disk, which is connected and fixed to the outer periphery of the air intake seat. The panel is provided with an installation hole corresponding to the air intake seat. The outer diameter of the connecting disk is larger than the diameter of the installation hole. The air intake seat is placed in the bottom shell through the installation hole, and the connecting disk sits on the panel. An inlet of the air intake channel is left between the connecting disk and the bottom surface of the burner base.

[0025] The installation of the burner is simple and easy.

[0026] In the present invention, the centripetal combustion zone forms the central combustion zone to meet the heating requirement for the central area of large-diameter cookware. According to the number of burners, the included angle range between the centripetal combustion zone and the centrifugal combustion zone is reasonably set. The formation of the centripetal combustion zone and the centrifugal combustion zone is easy and simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural schematic diagram of Embodiment 1.

[0028] Figure 2 It is an exploded structural schematic diagram of Embodiment 1.

[0029] Figure 3 It is a structural schematic diagram of the burner in Embodiment 1.

[0030] Figure 4 It is an exploded structural schematic diagram of the burner.

[0031] Figure 5 It is an exploded structural schematic diagram of the burner from another perspective.

[0032] Figure 6 It is a partial sectional structural schematic diagram of Embodiment 1.

[0033] Figure 7 It is a top view of the burner head (the burner cap is omitted).

[0034] Figure 8 It is a schematic diagram of the closed state of the burner head in the first embodiment.

[0035] Figure 9 It is a schematic diagram of the first state of the burner head in the first embodiment (the blue line indicates the range of the flame angle).

[0036] Figure 10 It is a schematic diagram of the second state of the burner head in the first embodiment.

[0037] Figure 11 It is a schematic diagram of the third state of the burner head in the first embodiment.

[0038] Figure 12 It is a schematic diagram of the third state of the burner head in the second embodiment. Detailed implementation manners

[0039] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0040] Embodiment 1. Refer to Figure 1-11 As shown, a gas appliance includes a housing 1, a burner head 2 and a control valve 3 provided on the housing 1. In this embodiment, one burner head 2 is controlled by one control valve 3.

[0041] The burner head 2 is provided with a centripetal combustion zone 21 and a centrifugal combustion zone 22. Specifically, the burner head 2 includes an air inlet seat 4, a burner cap seat 5 and a burner cap 6. The burner cap seat 5 is seated on the air inlet seat 4. The burner cap seat 5 is provided with the centripetal combustion zone 21 and the centrifugal combustion zone 22. One burner cap 6 is seated on the burner cap seat 5 and is simultaneously seated above the centripetal combustion zone 21 and the centrifugal combustion zone 22. The air inlet seat 4 supplies gas independently to the centripetal combustion zone 21 and the centrifugal combustion zone 22 respectively. The top of the burner cap seat 5 is provided with a concave combustion chamber 50. A second gas supply hole 52 is provided at the center of the combustion chamber 50. One side of the second gas supply hole 52 is provided with an arc-shaped surrounding wall 53. The two end parts of the arc-shaped surrounding wall 53 are respectively provided with partition walls 54 along the radial direction of the burner cap seat 5. The end parts of the partition walls 54 extend to abut against the side wall of the combustion chamber 50. The arc-shaped surrounding wall 53 and the partition walls 54 divide the combustion chamber 50 into the centripetal combustion zone 21 and the centrifugal combustion zone 22. The second gas supply hole 52 communicates with the centrifugal combustion zone 22. A first gas supply hole 51 is provided corresponding to the middle part of the centripetal combustion zone 21 on the bottom surface of the combustion chamber 50. A plurality of flame holes 55 are provided on the side wall of the combustion chamber 50.

[0042] A laterally concave notch 56 is provided on the outside of the burner cap seat 5 corresponding to the centripetal combustion zone 21. The notch 56 communicates with the centripetal combustion zone 21. An ignition needle 7 is provided at the notch 56. Preferably, the notch 56 is located on the central axis of the arc of the centripetal combustion zone 21. The top of the ignition needle 7 is placed below the burner cap 6.

[0043] In the present invention, there are at least two burner heads 2, and the centripetal combustion zones 21 of the burner heads 2 all face the center of the arrangement shape of the corresponding burner heads 2. The control valve 3 controls the burner heads 2 to have at least the centripetal combustion zones 21 working, and the flames of the centripetal combustion zones 21 of all the burner heads 2 face the center to form a central combustion zone. Generally, the sum of the angles of the centripetal combustion zones 21 and the centrifugal combustion zones 22 is 360°, the angle of the centripetal combustion zones 21 is 90 - 180°, and the corresponding angle of the centrifugal combustion zones 22 is 270 - 180°.

[0044] In this embodiment, there are four burner heads 2, and the four burner heads 2 are arranged in a rectangular array, and the centripetal combustion zones 21 of the four burner heads 2 all face the center of the rectangular array. If the rectangular array is a square, the overlapping position of the central axes of the centripetal combustion zones 21 of the four burner heads 2 is the center of the rectangular array. The angle of the centripetal combustion zones 21 of the burner heads 2 is 120°, and the corresponding angle of the centrifugal combustion zones 22 is 240°.

[0045] A limiting bracket 57 is provided at the bottom of the burner cap seat 5. The burner cap seat 5 is seated on the air inlet seat 4 through the limiting bracket 57. An air inlet passage 8 is left between the burner cap seat 5 and the air inlet seat 4. The air inlet passage 8 communicates with the mixing chamber 40 of the air inlet seat 4. The first air supply hole 51 extends downward to form a first air guide cylinder 58, and the second air supply hole 52 extends downward to form a second air guide cylinder 59. The air inlet seat 4 is provided with a first ejector tube 41 and a second ejector tube 42. The outlet of the first ejector tube 41 is arranged directly below the first air guide cylinder 58, and the outlet of the first ejector tube 41 communicates with the first air guide cylinder 58 through the mixing chamber 40. The outlet of the second ejector tube 42 is arranged directly below the second air guide cylinder 59, and the outlet of the second ejector tube 42 communicates with the second air guide cylinder 59 through the mixing chamber 40.

[0046] The housing 1 includes a front panel 11 and a bottom shell 12. The front panel 11 covers the bottom shell 12. The burner head 2 further includes a connecting plate 9. The connecting plate 9 is connected and fixed to the outer periphery of the air inlet seat 4 by screws. The front panel 11 is provided with an installation hole 10 corresponding to the air inlet seat 4. The outer peripheral diameter of the connecting plate 9 is larger than the diameter of the installation hole 10. The air inlet seat 4 is placed in the bottom shell 12 through the installation hole 10. The connecting plate 9 is seated on the front panel 11, and an inlet of the air inlet passage 8 is left between the connecting plate 9 and the bottom surface of the burner cap seat 5.

[0047] In this embodiment, the control valve 3 has at least three gears.

[0048] See Figure 8 , when the control valve 3 is in the first gear, at this time, the control valve 3 is in the closed state, that is, the gas cannot supply gas to the burner head 2 through the control valve 3, and the burner head 2 is in the closed state.

[0049] See Figure 9, when the control valve 3 is in the second gear, that is, when the control valve 3 rotates counterclockwise by 90°, the control valve 3 is in the fully open state. At this time, gas enters both the first ejector pipe 41 and the second ejector pipe 42 of the burner head 2. At this time, both the centripetal combustion zone 21 and the centrifugal combustion zone 22 of the burner head 2 are in the working state, that is, the centripetal combustion zone 21 and the centrifugal combustion zone 22 are in the high-fire state. Specifically, after the ignition needle 7 ignites the gas in the centripetal combustion zone 21, the flame of the burning gas in the centripetal combustion zone 21 spreads to the centrifugal combustion zone 22, thereby igniting the gas in the centrifugal combustion zone 22.

[0050] See Figure 10 , when the control valve 3 rotates counterclockwise by 45° from the second gear to the first gear, the control valve 3 is half-closed, that is, gas enters both the first ejector pipe 41 and the second ejector pipe 42 of the burner head 2. At this time, both the centripetal combustion zone 21 and the centrifugal combustion zone 22 of the burner head 2 are in the working state, that is, the centripetal combustion zone 21 and the centrifugal combustion zone 22 are in the low-fire state. When the control valve 3 rotates counterclockwise from the second gear to the first gear, the firepower of the centripetal combustion zone 21 and the centrifugal combustion zone 22 decreases from high to low until it is turned off.

[0051] See Figure 11 , when the control valve 3 is in the third gear, the control valve 3 controls the supply of gas to the first ejector pipe 41 and stops supplying gas to the second ejector pipe 42. At this time, only the centripetal combustion zone 21 of the burner head 2 is in the working state, and the centrifugal combustion zone 22 is in the closed state, that is, the centripetal combustion zone 21 and the centrifugal combustion zone 22 are in the low-fire state. When the control valve 3 rotates counterclockwise from the second gear to the third gear, the centripetal combustion zone 21 remains in the combustion state, while the firepower of the centrifugal combustion zone 22 decreases from high to low until it is turned off. The centripetal combustion zones 21 of the four burner heads 2 form the central combustion zone.

[0052] Example 1, see Figure 12 As shown, the difference from Example 1 is that there are two burner heads 2, the two burner heads 2 are arranged side by side, the centripetal combustion zones 21 of the two burner heads 2 are symmetrically arranged left and right, the included angle of the centripetal combustion zones 21 is 180°, and the corresponding included angle of the centrifugal combustion zones 22 is 180°.

[0053] For example, in the present invention, the use of terms: first, second, etc. does not represent any order, quantity or importance, but is only used for distinction.

[0054] For example, in the present invention, the use of terms: one, a kind of, etc. does not represent a limitation of quantity, but represents the existence of at least one mentioned object.

[0055] For example, in the present invention, the use of terms indicating orientation or position: front end, rear end, top, bottom, side, longitudinal, transverse, middle, center, outside, inside, horizontal, vertical, left, right, above, below, etc. means reflecting relative position, rather than absolute position.

[0056] Terms such as "substantially", "entirely", "approximately", "close to", etc., as used in the present invention, are limiting terms that indicate the existence of a feature but allow for a certain deviation. The amount of deviation allowed may vary depending on the specific context.

Claims

1. A gas appliance, comprising a housing (1) and a burner (2) and a control valve (3) arranged on the housing (1), wherein: The burner head (2) is provided with a centripetal combustion zone (21) and a centrifugal combustion zone (22), and the burner heads (2) have at least two centripetal combustion zones (21). The centripetal combustion zones (21) of the burner heads (2) are all oriented toward the center of the corresponding burner head (2) arrangement shape. The control valve (3) controls the burner head (2) to at least have only the centripetal combustion zone (21) working, and the flames of the centripetal combustion zones (21) of all the burner heads (2) are oriented toward the center to form a central combustion zone.

2. The gas appliance according to claim 1, characterized in that: The sum of the included angles of the centripetal combustion zone (21) and the centrifugal combustion zone (22) is 360°, the included angle of the centripetal combustion zone (21) is 90-180°, and the corresponding included angle of the centrifugal combustion zone (22) is 270-180°.

3. The gas appliance according to claim 2, characterized in that: There are four burner heads (2), which are arranged in a rectangular array, and the centripetal combustion zones (21) of the four burner heads (2) are all oriented toward the center of the rectangular array.

4. The gas appliance according to claim 3, characterized in that: The position where the central axes of the centripetal combustion zones (21) of the four burners (2) coincide is the center of the rectangular array.

5. The gas appliance according to claim 2, characterized in that: The included angle of the centripetal combustion zone (21) is 120°, and the included angle of the corresponding centrifugal combustion zone (22) is 240°.

6. The gas appliance according to claim 2, characterized in that: There are two burner heads (2), the two burner heads (2) are arranged side by side, the centripetal combustion zones (21) of the two burner heads (2) are arranged symmetrically, the included angle of the centripetal combustion zones (21) is 180°, and the included angle of the corresponding centrifugal combustion zones (22) is 180°.

7. The gas appliance according to claim 1, characterized in that: The burner head (2) comprises an air inlet seat (4), a fire cover seat (5) and a fire cover (6); the fire cover seat (5) is seated on the air inlet seat (4); the fire cover seat (5) is provided with the centripetal combustion zone (21) and the centrifugal combustion zone (22); a fire cover (6) is seated on the fire cover seat (5) and is simultaneously seated above the centripetal combustion zone (21) and the centrifugal combustion zone (22); the air inlet seat (4) supplies air to the centripetal combustion zone (21) and the centrifugal combustion zone (22) independently; a concave combustion chamber (50) is provided on the top of the fire cover seat (5); a second air supply hole (52) is provided at the center of the combustion chamber (50); and the second air supply hole (52) is provided at the center of the combustion chamber (50). An arc-shaped surrounding wall (53) is provided on one side of the hole (52), and partition walls (54) are provided at both ends of the arc-shaped surrounding wall (53) along the radial direction of the fire cover seat (5), and the ends of the partition walls (54) extend to abut against the side wall of the combustion chamber (50). The arc-shaped surrounding wall (53) and the partition wall (54) divide the combustion chamber (50) into the centripetal combustion zone (21) and the centrifugal combustion zone (22), and the second air supply hole (52) is connected to the centrifugal combustion zone (22). A first air supply hole (51) is provided on the bottom surface of the combustion chamber (50) corresponding to the middle of the centripetal combustion zone (21), and a plurality of fire holes (55) are provided on the side wall of the combustion chamber (50).

8. The gas appliance according to claim 7, characterized in that: A laterally inwardly concave notch (56) is provided on the outer side of the fire cover seat (5) corresponding to the centripetal combustion zone (21); the notch (56) is in communication with the centripetal combustion zone (21); and an ignition needle (7) is provided at the notch (56).

9. The gas appliance according to claim 7, characterized in that: A limiting bracket (57) is provided at the bottom of the fire cover seat (5). The fire cover seat (5) is seated on the air intake seat (4) through the limiting bracket (57). An air intake passage (8) is left between the fire cover seat (5) and the air intake seat (4). The air intake passage (8) is connected to an air mixing chamber (40) of the air intake seat (4). A first air supply hole (51) extends downwardly to form a first air guide cylinder (58). A second air supply hole (52) extends downwardly to form a second air guide cylinder (59). The air intake seat (4) is provided with a first ejector tube (41) and a second ejector tube (42). An outlet of the first ejector tube (41) is arranged directly below the first air guide cylinder (58). An outlet of the first ejector tube (41) is connected to the first air guide cylinder (58) via the air mixing chamber (40). An outlet of the second ejector tube (42) is arranged directly below the second air guide cylinder (59). An outlet of the second ejector tube (42) is connected to the second air guide cylinder (59) via the air mixing chamber (40).

10. The gas appliance according to claim 9, characterized in that: The housing (1) comprises a panel (11) and a bottom shell (12), wherein the panel (11) covers the bottom shell (12), and the burner head (2) further comprises a connecting plate (9), wherein the connecting plate (9) is connected and fixed to the outer periphery of an air inlet seat (4), and the panel (11) is provided with a mounting hole (10) corresponding to the air inlet seat (4), and the outer periphery diameter of the connecting plate (9) is larger than the diameter of the mounting hole (10), and the air inlet seat (4) is placed in the bottom shell (12) through the mounting hole (10), and the connecting plate (9) is seated on the panel (11), and an entrance of an air inlet passage (8) is reserved on the bottom surfaces of the connecting plate (9) and the fire cover seat (5).

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