Combustor with gas outlet nozzle and working method thereof

Abstract

The invention relates to a burner with a gas outlet nozzle and a working method of the burner, and belongs to the field of kitchen appliances. The burner comprises an inner ring burner cap, an outer ring burner cap, a gas distribution disc, a base, an ignition needle and a thermocouple, the gas distribution disc, the ignition needle and the thermocouple are all arranged on the base, and the inner ring burner cap and the outer ring burner cap are both arranged on the gas distribution disc. The ignition gas outlet nozzle and the induction gas outlet nozzle are both arranged on the gas distribution disc, the ignition gas outlet nozzle and the induction gas outlet nozzle are matched with the ignition needle and the thermocouple respectively, and an ignition gas outlet hole, a first ignition speed reduction hole and a second ignition speed reduction hole are formed in the ignition gas outlet nozzle; the ignition gas outlet hole, the first ignition deceleration hole and the second ignition deceleration hole are sequentially formed in the gas flowing direction, and the hole diameters are sequentially increased.

Description

Technical Field

[0001] The invention relates to a burner with an air outlet nozzle and a working method thereof, belonging to the field of kitchen appliances. Background Art

[0002] The burner is a common kitchen utensil in the household for cooking food, and comprises an inner ring fire cover 1, an outer ring fire cover 2, an air distribution plate 3, a base 4, an ignition needle 5 and a thermocouple 6. The burner in the prior art usually directly opens an ignition air outlet and an induction air outlet nozzle on the air distribution plate 3, but does not provide an ignition air outlet nozzle 7 and an induction air outlet nozzle 8, which will cause the mixed gas to flow out too fast, and the flame on the inner ring fire cover will have a flame separation phenomenon; and the inner ring fire cover 1 is not provided with an ignition anti-blocking boss 11 and an induction anti-blocking boss 14, which makes it possible for the hydraulic overflow in the pot body during cooking to cause the ignition air outlet and the induction air outlet nozzle to be blocked.

[0003] In addition, the first ring-slit fire groove 23 and the second ring-slit fire groove 24 arranged on the outer ring fire cover 2 are arranged correspondingly, that is to say, the first ring-slit fire groove 23 and the second ring-slit fire groove 24 can only replenish secondary air from one side. Therefore, the two first ring-slit fire grooves 23 and the second ring-slit fire grooves 24 arranged corresponding to each other will affect the replenishment of secondary air, and then affect the combustion efficiency; at the same time, the first ring-slit fire hole 21 and the second ring-slit fire hole 22 are arranged vertically and perpendicular to the bottom of the pot body, resulting in a small negative pressure and a small flow rate during combustion, and it is difficult to replenish secondary air.

[0004] In view of this, a burner with an annular flame is disclosed in the patent document with application number 201510245108.1. The fire holes 21 in the above-mentioned prior art are arranged corresponding to each other inside and outside, which affects the supplement of secondary air. In addition, the fire holes 21 are arranged vertically and perpendicular to the bottom of the pot body. It is difficult to supplement secondary air during combustion, resulting in low combustion efficiency. Summary of the invention

[0005] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art and to provide a burner with a gas outlet nozzle having a reasonable structural design and a working method thereof.

[0006] The technical solution adopted by the present invention to solve the above-mentioned problem is: the burner with an air outlet nozzle includes an inner ring fire cover, an outer ring fire cover, an air distribution plate, a base, an ignition needle and a thermocouple, and the air distribution plate, the ignition needle and the thermocouple are all arranged on the base, and the inner ring fire cover and the outer ring fire cover are both arranged on the air distribution plate. Its structural characteristics are: it also includes an ignition air outlet nozzle and an induction air outlet nozzle, and the ignition air outlet nozzle and the induction air outlet nozzle are both arranged on the air distribution plate, and the ignition air outlet nozzle and the induction air outlet nozzle are respectively matched with the ignition needle and the thermocouple.

[0007] Furthermore, the ignition gas outlet nozzle is provided with an ignition gas outlet hole, a first ignition deceleration hole and a second ignition deceleration hole. The ignition gas outlet hole, the first ignition deceleration hole and the second ignition deceleration hole are arranged in sequence along the gas flow direction, and the apertures increase in sequence.

[0008] Furthermore, the induction gas outlet nozzle is provided with an induction gas outlet hole, a first induction deceleration hole and a second induction deceleration hole. The induction gas outlet hole, the first induction deceleration hole and the second induction deceleration hole are arranged in sequence along the gas flow direction, and the apertures increase in sequence.

[0009] Furthermore, the inner ring fire cover is provided with an ignition anti-blocking boss, a second ignition fire transfer hole, an induction anti-blocking boss, a first induction fire transfer hole, an inner ring main fire hole and a flame stabilizing hole; the ignition anti-blocking boss is provided with a first ignition fire transfer hole, and the induction anti-blocking boss is provided with a second induction fire transfer hole.

[0010] Furthermore, the ignition anti-blocking boss is located below the second ignition fire transfer hole, and the induction anti-blocking boss is located below the first induction fire transfer hole.

[0011] Furthermore, the ignition anti-blocking boss is located above the ignition air outlet nozzle, and the induction anti-blocking boss is located above the induction air outlet nozzle.

[0012] Furthermore, the first ignition flame transmission hole is arranged in parallel with the second ignition flame transmission hole, and the second induction flame transmission hole is arranged in parallel with the first induction flame transmission hole.

[0013] Furthermore, the outer ring fire cover is provided with a first ring strip fire groove and a second ring strip fire groove of an annular structure, the bottom of the first ring strip fire groove is provided with a plurality of first ring strip fire holes, and the bottom of the second ring strip fire groove is provided with a plurality of second ring strip fire holes.

[0014] Furthermore, the plurality of first annular strip slit fire holes and the plurality of second annular strip slit fire holes are arranged in a circular array, and the first annular strip slit fire holes and the second annular strip slit fire holes are staggered.

[0015] Furthermore, the first annular seam fire groove and the second annular seam fire groove are both inclined, the angle between the first annular seam fire groove and the horizontal plane is α1, 0°≤α1≤90°, and the angle between the second annular seam fire groove and the horizontal plane is α2, 0°≤α2≤90°.

[0016] Furthermore, another technical purpose of the present invention is to provide a working method of a burner with an air outlet nozzle.

[0017] The above technical objectives of the present invention are achieved through the following technical solutions.

[0018] A working method of a burner with an air outlet nozzle is as follows: Working process of the ignition air outlet nozzle: when the mixed gas passes through the ignition air outlet hole of the ignition air outlet nozzle, the flow rate of the mixed gas will decrease after passing through the first ignition deceleration hole and the second ignition deceleration hole, and the high-voltage electric sparks continuously emitted by the ignition needle ignite the mixed gas into a high-temperature flame. The high-temperature flame on the ignition air outlet nozzle ignites the mixed gas flowing out of the first ignition flame transfer hole at the edge of the ignition anti-blocking boss just above it, and the high-temperature flame on the first ignition flame transfer hole ignites the mixed gas flowing out of the second ignition flame transfer hole above the ignition anti-blocking boss. At this time, the high-temperature flame on the second ignition flame transfer hole ignites the mixed gas flowing out of all other fire holes in the circumferential direction of the inner ring fire cover.

[0019] Furthermore, the working process of the induction gas outlet nozzle is as follows: after all the fire holes in the circumferential direction of the inner ring fire cover are ignited, the flame of the first induction fire hole above the induction anti-blocking boss ignites the mixed gas flowing out of the second induction fire hole; when the mixed gas passes through the induction gas outlet hole of the induction gas outlet nozzle, the flow rate of the mixed gas after passing through the first induction deceleration hole and the second induction deceleration hole will be reduced, and it will be ignited by the high-temperature flame on the second induction deceleration hole; when the high-temperature flame on the induction gas outlet nozzle becomes stable continuously, the head of the thermocouple directly in front will be in a working state in the high-temperature flue gas.

[0020] Compared with the prior art, the present invention has the following advantages: the burner with an air outlet nozzle is equipped with an ignition air outlet nozzle and an induction air outlet nozzle on the gas distribution plate, and the apertures of the ignition air outlet hole, the first ignition deceleration hole and the second ignition deceleration hole arranged on the ignition air outlet nozzle are increased in sequence, and the apertures of the induction air outlet hole, the first induction deceleration hole and the second induction deceleration hole arranged on the induction air outlet nozzle are increased in sequence, thereby decelerating the mixed gas when it flows out, avoiding the flame separation phenomenon on the inner ring fire cover, and stabilizing the flame; at the same time, an ignition anti-blocking boss and an induction anti-blocking boss are arranged on the inner ring fire cover above the ignition air outlet nozzle and the induction air outlet nozzle, thereby avoiding the blockage of the ignition air outlet nozzle and the induction air outlet nozzle due to liquid overflow from the pot body during cooking.

[0021] A plurality of first-ring-slit fire grooves and second-ring-slit fire grooves arranged in a circular array are arranged on the outer-ring fire cover. Since the first-ring-slit fire grooves and the second-ring-slit fire grooves are staggered with each other, the supplement of secondary air by the first-ring-slit fire grooves and the second-ring-slit fire grooves will not be affected. That is, the secondary air can be supplemented to the first-ring-slit fire grooves and the second-ring-slit fire grooves on both the inner and outer sides of the outer-ring fire cover at the same time, and the first-ring-slit fire holes and the second-ring-slit fire holes are inclined, which can increase the negative pressure during combustion and increase the flow rate, which is beneficial to the supplement of secondary air, so that the combustion efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the explosion structure of a burner with an air outlet nozzle according to an embodiment of the present invention.

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of a burner with an air outlet nozzle according to an embodiment of the present invention.

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of a burner with an air outlet nozzle according to an embodiment of the present invention.

[0025] Figure 4 It is a schematic cross-sectional structure diagram of a burner with an air outlet nozzle according to an embodiment of the present invention.

[0026] Figure 5 It is a schematic cross-sectional structure diagram of a burner with an air outlet nozzle according to an embodiment of the present invention.

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the inner ring fire cover according to an embodiment of the present invention.

[0028] Figure 7 It is a schematic diagram of the three-dimensional structure of the outer ring fire cover according to an embodiment of the present invention.

[0029] Figure 8 It is a schematic diagram of the internal structure of the outer ring fire cover according to an embodiment of the present invention.

[0030] Fig. 9 It is a schematic diagram of the cross-sectional structure of the outer ring fire cover according to an embodiment of the present invention.

[0031] Fig.10 It is a schematic diagram of the three-dimensional structure of the ignition gas outlet nozzle according to an embodiment of the present invention.

[0032] Fig.11 It is a schematic diagram of the three-dimensional structure of the induction air outlet nozzle according to an embodiment of the present invention.

[0033] In the figure: inner ring fire cover 1, outer ring fire cover 2, gas distribution plate 3, base 4, ignition needle 5, thermocouple 6, ignition outlet nozzle 7, induction outlet nozzle 8, Ignition anti-blocking boss 11, first ignition flame transfer hole 12, second ignition flame transfer hole 13, induction anti-blocking boss 14, first induction flame transfer hole 15, second induction flame transfer hole 16, inner ring main flame hole 17, flame stabilizing hole 18, The first ring strip fire hole 21, the second ring strip fire hole 22, the first ring strip fire groove 23, the second ring strip fire groove 24, Ignition outlet hole 71, first ignition deceleration hole 72, second ignition deceleration hole 73, Induction air outlet hole 81, first induction deceleration hole 81, second induction deceleration hole 82. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and by way of examples. The following examples are intended to explain the present invention but the present invention is not limited to the following examples.

[0035] Example.

[0036] See also Figures 1 to 11 As shown, it should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, if there are references to terms such as "upper", "lower", "left", "right", "middle" and "one" in this specification, they are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0037] The burner with an air outlet nozzle in this embodiment includes an inner ring fire cover 1, an outer ring fire cover 2, an air distribution plate 3, a base 4, an ignition needle 5, a thermocouple 6, an ignition air outlet nozzle 7 and an induction air outlet nozzle 8. The air distribution plate 3, the ignition needle 5 and the thermocouple 6 are all arranged on the base 4, the inner ring fire cover 1 and the outer ring fire cover 2 are both arranged on the air distribution plate 3, the ignition air outlet nozzle 7 and the induction air outlet nozzle 8 are both arranged on the air distribution plate 3, and the ignition air outlet nozzle 7 and the induction air outlet nozzle 8 are respectively matched with the ignition needle 5 and the thermocouple 6.

[0038] The ignition gas outlet nozzle 7 in this embodiment is provided with an ignition gas outlet hole 71, a first ignition deceleration hole 72 and a second ignition deceleration hole 73. The ignition gas outlet hole 71, the first ignition deceleration hole 72 and the second ignition deceleration hole 73 are arranged in sequence along the gas flow direction, and the apertures increase in sequence.

[0039] The induction gas outlet nozzle 8 in this embodiment is provided with an induction gas outlet hole 81, a first induction deceleration hole 81 and a second induction deceleration hole 82. The induction gas outlet hole 81, the first induction deceleration hole 81 and the second induction deceleration hole 82 are arranged in sequence along the gas flow direction, and the apertures increase in sequence.

[0040] The inner ring ignition cover 1 in this embodiment is provided with an ignition anti-blocking boss 11, a second ignition fire transfer hole 13, an induction anti-blocking boss 14, a first induction fire transfer hole 15, an inner ring main fire hole 17 and a flame stabilizing hole 18; the ignition anti-blocking boss 11 is provided with a first ignition fire transfer hole 12, and the induction anti-blocking boss 14 is provided with a second induction fire transfer hole 16.

[0041] The ignition anti-blocking boss 11 in this embodiment is located below the second ignition flame transfer hole 13, and the induction anti-blocking boss 14 is located below the first induction flame transfer hole 15; the first ignition flame transfer hole 12 is arranged in parallel with the second ignition flame transfer hole 13, and the second induction flame transfer hole 16 is arranged in parallel with the first induction flame transfer hole 15; the ignition anti-blocking boss 11 is located above the ignition air outlet nozzle 7, and the induction anti-blocking boss 14 is located above the induction air outlet nozzle 8.

[0042] In this embodiment, the outer ring fire cover 2 is provided with a first ring strip fire groove 23 and a second ring strip fire groove 24 of an annular structure, and a plurality of first ring strip fire holes 21 are provided at the bottom of the first ring strip fire groove 23, and a plurality of second ring strip fire holes 22 are provided at the bottom of the second ring strip fire groove 24; the plurality of first ring strip fire holes 21 and the plurality of second ring strip fire holes 22 are arranged in a circular array, and the first ring strip fire holes 21 and the second ring strip fire holes 22 are staggered; the distance between adjacent first ring strip fire holes 21 is H1, H1 is the uncut portion of the bottom of the first ring strip fire groove 23, and the distance between adjacent second ring strip fire holes 22 is H2, H2 is the uncut portion of the bottom of the second ring strip fire groove 24.

[0043] In this embodiment, the first annular seam fire groove 23 and the second annular seam fire groove 24 are both inclined, and the angle between the first annular seam fire groove 23 and the horizontal plane is α1, 0°≤α1≤90°, and the angle between the second annular seam fire groove 24 and the horizontal plane is α2, 0°≤α2≤90°.

[0044] The working process of the ignition gas outlet nozzle 7 in this embodiment: When the mixed gas passes through the ignition outlet hole 71 of the ignition outlet nozzle 7, the flow rate of the mixed gas will be reduced after passing through the first ignition deceleration hole 72 and the second ignition deceleration hole 73, and the high-voltage electric sparks continuously emitted by the ignition needle 5 ignite the mixed gas and turn it into a high-temperature flame. The high-temperature flame on the ignition outlet nozzle 7 ignites the mixed gas flowing out of the first ignition flame transfer hole 12 at the edge of the ignition anti-blocking boss 11 directly above it, and the high-temperature flame on the first ignition flame transfer hole 12 ignites the mixed gas flowing out of the second ignition flame transfer hole 13 above the ignition anti-blocking boss 11. At this time, the high-temperature flame on the second ignition flame transfer hole 13 ignites the mixed gas flowing out of all other fire holes in the circumferential direction of the inner ring fire cover 1.

[0045] The working process of the induction gas outlet nozzle 8 in this embodiment is as follows: After all the fire holes in the circumferential direction of the inner ring fire cover 1 are ignited, the flame of the first induction fire hole 15 above the induction anti-blocking boss 14 ignites the mixed gas flowing out of the second induction fire hole 16. When the mixed gas passes through the induction outlet hole 81 of the induction outlet nozzle 8, the flow rate of the mixed gas will decrease after passing through the first induction deceleration hole 81 and the second induction deceleration hole 82, and is ignited by the high-temperature flame on the second induction deceleration hole 82. When the high-temperature flame on the induction outlet nozzle 8 becomes stable, the head of the thermocouple 6 directly in front will be in a working state in the high-temperature flue gas.

[0046] In addition, it should be noted that the shapes and names of the parts and components of the specific embodiments described in this specification may be different, and the above content described in this specification is only an example of the structure of the present invention. All equivalent changes or simple changes made based on the structure, features and principles described in the patent concept of the present invention are included in the protection scope of the patent of the present invention. Technicians in the technical field of the present invention can make various modifications or supplements to the specific embodiments described or replace them in a similar manner, as long as they do not deviate from the structure of the present invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A burner with an air outlet nozzle, comprising an inner ring fire cover (1), an outer ring fire cover (2), a gas distribution plate (3), a base (4), an ignition needle (5) and a thermocouple (6), wherein the gas distribution plate (3), the ignition needle (5) and the thermocouple (6) are all arranged on the base (4), and the inner ring fire cover (1) and the outer ring fire cover (2) are both arranged on the gas distribution plate (3), characterized in that: It also includes an ignition gas outlet nozzle (7) and an induction gas outlet nozzle (8), wherein the ignition gas outlet nozzle (7) and the induction gas outlet nozzle (8) are both arranged on the gas distribution plate (3), and the ignition gas outlet nozzle (7) and the induction gas outlet nozzle (8) are respectively matched with the ignition needle (5) and the thermocouple (6); The ignition gas outlet nozzle (7) is provided with an ignition gas outlet hole (71), a first ignition deceleration hole (72) and a second ignition deceleration hole (73), wherein the ignition gas outlet hole (71), the first ignition deceleration hole (72) and the second ignition deceleration hole (73) are arranged in sequence along the gas flow direction, and the hole diameters increase in sequence; The induction gas outlet nozzle (8) is provided with an induction gas outlet hole (81), a first induction deceleration hole (81) and a second induction deceleration hole (82); the induction gas outlet hole (81), the first induction deceleration hole (81) and the second induction deceleration hole (82) are arranged in sequence along the gas flow direction, and the apertures increase in sequence.

2. The burner with an air outlet nozzle according to claim 1, characterized in that: The inner ring fire cover (1) is provided with an ignition anti-blocking boss (11), a second ignition fire transfer hole (13), an induction anti-blocking boss (14), a first induction fire transfer hole (15), an inner ring main fire hole (17) and a flame stabilizing hole (18); the ignition anti-blocking boss (11) is provided with a first ignition fire transfer hole (12), and the induction anti-blocking boss (14) is provided with a second induction fire transfer hole (16).

3. The burner with an air outlet nozzle according to claim 2, characterized in that: The ignition anti-blocking boss (11) is located below the second ignition flame transfer hole (13), and the induction anti-blocking boss (14) is located below the first induction flame transfer hole (15).

4. The burner with an air outlet nozzle according to claim 2, characterized in that: The ignition anti-blocking boss (11) is located above the ignition air outlet nozzle (7), and the induction anti-blocking boss (14) is located above the induction air outlet nozzle (8).

5. The burner with an air outlet nozzle according to claim 2, characterized in that: The first ignition flame transmission hole (12) is arranged in parallel with the second ignition flame transmission hole (13), and the second induction flame transmission hole (16) is arranged in parallel with the first induction flame transmission hole (15).

6. The burner with an air outlet nozzle according to claim 1, characterized in that: The outer ring fire cover (2) is provided with a first ring fire groove (23) and a second ring fire groove (24) of an annular structure, the bottom of the first ring fire groove (23) is provided with a plurality of first ring fire holes (21), and the bottom of the second ring fire groove (24) is provided with a plurality of second ring fire holes (22).

7. The burner with an air outlet nozzle according to claim 6, characterized in that: The plurality of first annular strip slit fire holes (21) and the plurality of second annular strip slit fire holes (22) are arranged in a circular array, and the first annular strip slit fire holes (21) and the second annular strip slit fire holes (22) are arranged in a staggered manner.

8. The burner with an air outlet nozzle according to claim 6, characterized in that: The first annular fire groove (23) and the second annular fire groove (24) are both arranged obliquely, the angle between the first annular fire groove (23) and the horizontal plane is α1, 0°≤α1≤90°, and the angle between the second annular fire groove (24) and the horizontal plane is α2, 0°≤α2≤90°.

9. A method for operating a burner with an air outlet according to any one of claims 1 to 8, characterized in that: The working method is as follows, The working process of the ignition gas outlet nozzle (7) is as follows: when the mixed gas passes through the ignition gas outlet hole (71) of the ignition gas outlet nozzle (7), the flow rate of the mixed gas will be reduced after passing through the first ignition deceleration hole (72) and the second ignition deceleration hole (73), and the high-voltage electric spark continuously emitted by the ignition needle (5) ignites the mixed gas to become a high-temperature flame. The high-temperature flame on the ignition gas outlet nozzle (7) ignites the mixed gas flowing out of the first ignition flame transfer hole (12) at the edge of the ignition anti-blocking boss (11) directly above, and the high-temperature flame on the first ignition flame transfer hole (12) ignites the mixed gas flowing out of the second ignition flame transfer hole (13) above the ignition anti-blocking boss (11). At this time, the high-temperature flame on the second ignition flame transfer hole (13) ignites the mixed gas flowing out of all other flame holes in the circumferential direction of the inner ring fire cover (1).

10. The operating method of the burner with an air outlet nozzle according to claim 9, characterized in that: Working process of the induction gas outlet nozzle (8): after all the fire holes in the circumferential direction of the inner ring fire cover (1) are ignited, the flame of the first induction fire transmission hole (15) above the induction anti-blocking boss (14) ignites the mixed gas flowing out of the second induction fire transmission hole (16). When the mixed gas passes through the induction gas outlet hole (81) of the induction gas outlet nozzle (8), the flow rate of the mixed gas will decrease after passing through the first induction deceleration hole (81) and the second induction deceleration hole (82), and is ignited by the high-temperature flame on the second induction deceleration hole (82). When the high-temperature flame on the induction gas outlet nozzle (8) is continuously stable, the head of the thermocouple (6) directly in front will be in the working state in the high-temperature smoke.

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