Ignition distributor and burner

Abstract

The present invention discloses a fire divider and a burner, wherein the fire divider comprises a fire divider body, the fire divider body is provided with a hollow inner ring fire divider, a hollow outer ring fire divider, an inner ring air passage communicating with the inner ring fire divider, and a plurality of outer ring air passages communicating with the outer ring fire divider, the outer ring fire divider is annular and surrounds the inner ring fire divider, the inner ring air passage is connected to the inner ring side wall of the outer ring fire divider, a plurality of large fire holes distributed along the circumferential direction are arranged at intervals on the outer ring side wall of the outer ring fire divider, the large fire hole directly opposite to the inner ring air passage is the first fire hole, the large fire hole staggered from the inner ring air passage is the second fire hole, and the diameter of the first fire hole is smaller than the diameter of the second fire hole. When the fire divider and the burner of the present invention are applied to a gas stove, they can achieve full combustion, low smoke content, and high thermal efficiency.

Description

Technical Field

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

[0002] A household gas stove is a gas appliance that converts the chemical energy of gas into thermal energy to cook dishes and process food to meet the needs of the family. Among them, the fire distributor and the pot support are the two main components of a household gas stove.

[0003] In existing household gas stoves, the fire distributors all have the following structure, including an inner fire cover or an outer fire cover surrounding the inner fire cover. The inner fire cover is provided with a fire hole for heating the central part of the bottom of the pot. The fire holes on the outer fire cover are arranged around its outer side wall for heating other parts of the bottom of the pot. The fire holes on the outer fire cover are generally divided into two circles, upper and lower. For the convenience of processing, the diameters of the fire holes in the same circle are equal. Such a structure leads to the following problems: First, in the same circle of fire holes, some of the fire holes are facing the gas channel in the fire distributor, so the gas outlet speed of this part of the fire holes is faster, and the flame height of this part is higher than the flame of the fire holes in other positions. At the same time, the gas combustion of this part is not complete, and the smoke is large; second, the fire holes facing the furnace ears of the pot support will have the problem of incomplete combustion due to the blocking effect of the furnace ears. At the same time, the flames ejected from these fire holes are easy to burn the furnace ears of the pot support, further causing the problem of excessive smoke; third, due to the structural limitations of the existing fire distributor, the angle between the gas channel and the fire holes on the outer fire cover is very large, generally about 45 degrees, resulting in large airflow resistance, which affects the induced performance on the one hand and energy loss on the other hand. This is not conducive to efficient and stable combustion, and further affects the smoke content and thermal efficiency.

[0004] The present invention is made based on this situation. Summary of the invention

[0005] In view of this, an object of the present invention is to provide a flame distributor and a burner, which, when applied to a gas stove, can achieve complete combustion, low smoke content and high thermal efficiency.

[0006] The technical solution adopted by the present invention to solve the technical problem is:

[0007] A fire divider comprises a fire divider body, on which a hollow inner ring fire divider, a hollow outer ring fire divider, an inner ring air duct communicating with the inner ring fire divider, and a plurality of outer ring air ducts communicating with the outer ring fire divider are arranged, the outer ring fire divider is annular and surrounds the inner ring fire divider, the inner ring air duct is connected to the inner ring side wall of the outer ring fire divider, a plurality of large fire holes distributed along the circumferential direction are arranged at intervals on the outer ring side wall of the outer ring fire divider, the large fire hole directly opposite to the outer ring air duct is a first fire hole, the large fire hole staggered from the outer ring air duct is a second fire hole, and the diameter of the first fire hole is smaller than the diameter of the second fire hole.

[0008] In a preferred embodiment of the present invention, all first fire holes facing the same outer ring air duct form a fire hole group, and the top of the outer ring fire divider is provided with a plurality of ventilation slots capable of replenishing air to the corresponding fire hole group.

[0009] In a preferred embodiment of the present invention, the ratio of the diameter of the first fire hole to the diameter of the second fire hole is 0.5 to 0.8.

[0010] In a preferred embodiment of the present invention, a plurality of small fire holes distributed along the circumferential direction are arranged at intervals on the outer ring side wall of the outer ring fire divider, and the diameter of the small fire holes is smaller than the diameter of the first fire hole.

[0011] In a preferred embodiment of the present invention, a third fire hole is provided on the inner ring fire divider, and an air passage capable of replenishing air to the third fire hole is provided between the outer ring fire divider and the inner ring fire divider.

[0012] In a preferred embodiment of the present invention, the fire divider body includes an inner fire cover, an outer fire cover, and a fire divider base, the fire divider base is an integrally formed structure, the outer ring air duct and the inner ring air duct are both arranged in the fire divider base, the inner fire cover and a part of the fire divider base constitute the inner ring fire divider, and the outer fire cover and a part of the fire divider base constitute the outer ring fire divider.

[0013] A burner comprises a burner head, a flame distributor as described above, a liquid receiving tray, and a boiler support, wherein all first fire holes facing the same outer ring air duct constitute a fire hole group, and the boiler support comprises a plurality of furnace ears for supporting pots, each furnace ear is arranged at a position facing the corresponding fire hole group.

[0014] In a preferred embodiment of the present invention, the inner ring air duct is connected to the bottom of the inner ring fire divider, and all the outer ring air ducts are radially distributed with the inner ring air duct as the center. The outer ring air duct gradually rises from one end close to the inner ring air duct to the other end. The angle between the outer ring air duct and the horizontal plane is B, and the angle between the large fire hole and the horizontal plane is A. A and B satisfy the following expressions: 30°≤A≤40°, AB≤15°.

[0015] In a preferred embodiment of the present invention, a burner head outer ring channel communicating with the outer ring air duct is provided in the burner head, and an angle between the burner head outer ring channel and the horizontal plane is Y, and Y and B satisfy the following expression: 110°≤Y+B≤130°.

[0016] In a preferred embodiment of the present invention, the number of the outer ring air ducts is 3 or more, the number of the fire hole groups is 3 or more, the number of the furnace ears is 3 or more, and the outer ring air ducts, fire hole groups, and furnace ears correspond to each other one by one.

[0017] The beneficial effects of the present invention are:

[0018] First, the diameter of the first fire hole is smaller than that of the second fire hole, and the furnace ears of the boiler support are all arranged at a position directly opposite to the first fire hole. Such a structure can reduce the gas flow rate of the first fire hole, and avoid the problem of incomplete combustion and high smoke content such as CO caused by excessive gas flow at the first fire hole. In addition, the flame height of the first fire hole is relatively low, and the furnace ears of the boiler support are placed at a position directly opposite to the first fire hole, so as to avoid the problem of excessive smoke caused by the flame burning the furnace ears of the boiler support.

[0019] Second, the top of the outer ring fire distributor is provided with a plurality of ventilation slots that can supply air to the corresponding fire hole group. The ventilation slots can supply air to the first fire hole in a directional manner, so that the gas ejected from the first fire hole burns more fully.

[0020] Third, the present invention greatly reduces the gas flow resistance by controlling the value of AB and the value of B+Y, thereby making the ejection capacity stronger, the thermal efficiency higher, and the CO emission lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a perspective view of a burner of the present invention;

[0022] Figure 2 yes Figure 1 A partial enlarged view of part A;

[0023] Figure 3 is an exploded view of a burner of the present invention;

[0024] Figure 4 It is a cross-sectional view of a burner of the present invention. DETAILED DESCRIPTION

[0025] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features. Summary of the invention

[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0030] Reference Figures 1 to 4 The present invention further proposes a burner, which includes a burner head 5, a flame distributor, a liquid receiving tray 3, and a boiler bracket 4.

[0031] The above-mentioned fire divider includes a fire divider body 1, on which is provided a hollow inner ring fire divider 11, a hollow outer ring fire divider 12, an inner ring air duct 13 communicated with the inner ring fire divider 11, and a plurality of outer ring air ducts 14 communicated with the outer ring fire divider 12. The outer ring fire divider 12 is annular and surrounds the inner ring fire divider 11. The inner ring air duct 13 is connected to the inner ring side wall of the outer ring fire divider 12. A plurality of large fire holes distributed along the circumferential direction are arranged at intervals on the outer ring side wall of the outer ring fire divider 12. The large fire hole directly opposite to the outer ring air duct 14 is a first fire hole 121, and the large fire hole staggered with the outer ring air duct 14 is a second fire hole 122. The diameter of the first fire hole 121 is smaller than the diameter of the second fire hole 122. We define that all the first fire holes 121 facing the same outer ring air duct 14 constitute a fire hole group 120 , and the boiler support 4 includes a plurality of furnace ears 41 for supporting the cooker, and each furnace ear 41 is arranged at a position facing the corresponding fire hole group 120 .

[0032] The flame divider adopts such a structure, which can reduce the gas flow rate of the first fire hole 121, and avoid the problem of incomplete combustion and high smoke content such as CO caused by excessive gas flow at the first fire hole 121. In addition, when such a flame divider is used on a gas stove, the flame height of the first fire hole 121 is relatively low, and the furnace ear 41 of the boiler support 4 is placed at a position directly opposite to the first fire hole 121, so as to avoid the problem of excessive smoke caused by the flame burning the furnace ear 41 of the pot support.

[0033] Preferably, the ratio of the diameter of the first fire hole 121 to the diameter of the second fire hole 122 is 0.5-0.8.

[0034] Furthermore, a plurality of ventilation slots 15 are provided on the top of the outer ring fire distributor 12 to replenish air to the corresponding fire hole group 120. The ventilation slots 15 can replenish air to the first fire hole 121 in a directional manner, so that the gas ejected from the first fire hole 121 burns more fully.

[0035] Reference Figure 2 On the outer ring side wall of the outer ring fire divider, a plurality of small fire holes 123 are arranged at intervals along the circumferential direction, and the diameter of the small fire holes is smaller than the diameter of the first fire hole 121. All the large fire holes are in the same circle layer of the outer ring fire divider, and all the small fire holes are in the same circle layer of the outer ring fire divider. A whole circle of small fire holes is arranged below a whole circle of large fire holes.

[0036] Reference Figure 1 The inner ring fire divider 11 is provided with a third fire hole 111, and an air channel 2 capable of supplying air to the third fire hole 111 is provided between the outer ring fire divider 12 and the inner ring fire divider 11. The air channel 2 can supply air to the third fire hole 111 in a directional manner, so that the gas ejected from the third fire hole 111 burns more fully.

[0037] Preferably, the fire divider body 1 includes an inner fire cover 101, an outer fire cover 102, and a fire divider base 103. The first fire hole 121, the second fire hole 122, and the small fire hole are all arranged on the outer fire cover 102, and the third fire hole 111 is arranged on the inner fire cover 101. The fire divider base 103 is an integrally formed structure, the outer ring air channel 14 and the inner ring air channel 13 are both arranged in the fire divider base 103, the inner fire cover 101 and a part of the fire divider base 103 constitute the inner ring fire divider 11, and the outer fire cover 102 and a part of the fire divider base 103 constitute the outer ring fire divider 12. The fire divider base 103 is designed as an integrally formed structure, which can improve the sealing performance. The fire divider body is assembled from the inner fire cover 101, the outer fire cover 102, and the fire divider base 103, which is conducive to production and processing.

[0038] As a further improvement of the present invention, the inner ring air duct 13 is connected to the bottom of the inner ring fire divider 11, and all the outer ring air ducts 14 are radially distributed with the inner ring air duct 13 as the center. The outer ring air duct 14 gradually rises from one end close to the inner ring air duct 13 to the other end. The angle between the outer ring air duct 14 and the horizontal plane is B, and the angle between the large fire hole and the horizontal plane is A. A and B satisfy the following expressions: 30°≤A≤40°, AB≤15°.

[0039] As a further improvement of the present invention, a burner outer ring channel 51 communicating with the outer ring gas channel 14 is provided in the burner 5, and the angle between the burner outer ring channel 51 and the horizontal plane is Y, and Y and B satisfy the following expression: 110°≤Y+B≤130°. Generally speaking, Y takes a fixed value of 90°, and a burner inner ring channel 52 communicating with the inner ring gas channel 13 is also provided in the burner 5, and the angle between the burner outer ring channel 51 and the horizontal plane is also 90°.

[0040] Since the gas needs to flow through multiple channels, the flow resistance must be reduced as much as possible to ensure more complete and efficient combustion. The traditional ignition distributor B=0°, A=30~40°, AB=30~40°, B+Y=90°, which leads to large gas flow resistance, poor induced performance, serious energy waste, thus affecting gas combustion and low thermal efficiency.

[0041] When AB≤15°, the angle between the large fire hole and the outer ring gas channel 14 of the ignition distributor is very small, so the resistance of the gas flowing from the outer ring gas channel 14 to the large fire hole in the ignition distributor is very small, which can ensure more complete and efficient combustion. When 110°≤Y+B≤130°, the angle between the burner outer ring channel 51 and the outer ring gas channel 14 of the ignition distributor is 50-70°, and the flow resistance between the ignition distributor and the burner 5 is small. The present invention greatly reduces the gas flow resistance by controlling the value of AB and the value of B+Y, thereby making the induced emission capability stronger, the thermal efficiency higher, and the CO emission lower.

[0042] The number of outer ring air passages 14 is 3 or more, the number of fire hole groups 120 is 3 or more, the number of furnace ears 41 is 3 or more, and the outer ring air passages 14, the fire hole groups 120, and the furnace ears 41 correspond one to one. Preferably, the number of outer ring air passages 14 is 4, the number of fire hole groups 120 is 4, the number of furnace ears 41 is 4, and the number of ventilation slots 15 is 4.

[0043] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A fire distributor, characterized in that: The invention comprises a fire divider body (1), on which a hollow inner ring fire divider (11), a hollow outer ring fire divider (12), an inner ring air passage (13) communicating with the inner ring fire divider (11), and a plurality of outer ring air passages (14) communicating with the outer ring fire divider (12) are arranged. The outer ring fire divider (12) is annular and surrounds the inner ring fire divider (11). The inner ring air passage (13) is connected to the inner ring side wall of the outer ring fire divider (12). A plurality of large fire holes distributed along the circumferential direction are arranged at intervals on the outer ring side wall of the outer ring fire divider (12). The large fire hole directly facing the outer ring air passage (14) is a first fire hole (121), and the large fire hole staggered from the outer ring air passage (14) is a second fire hole (122). The diameter of the first fire hole (121) is smaller than the diameter of the second fire hole (122). All first fire holes (121) facing the same outer ring air duct (14) form a fire hole group (120), and the top of the outer ring fire distributor (12) is provided with a plurality of ventilation slots (15) capable of supplying air to the corresponding fire hole group (120); A plurality of small fire holes (123) distributed along the circumferential direction are arranged at intervals on the outer ring side wall of the outer ring fire distributor (12), and the diameter of the small fire holes is smaller than the diameter of the first fire hole (121).

2. The ignition device according to claim 1, characterized in that: The ratio of the diameter of the first fire hole (121) to the diameter of the second fire hole (122) is 0.5 to 0.

8.

3. The ignition device according to claim 1, characterized in that: A third fire hole (111) is provided on the inner ring fire divider (11), and an air passage (2) capable of replenishing air to the third fire hole (111) is provided between the outer ring fire divider (12) and the inner ring fire divider (11).

4. The ignition device according to claim 1, characterized in that: The fire divider body (1) comprises an inner fire cover (101), an outer fire cover (102), and a fire divider base (103); the fire divider base (103) is an integrally formed structure; the outer ring air duct (14) and the inner ring air duct (13) are both arranged in the fire divider base (103); the inner fire cover (101) and a part of the fire divider base (103) constitute the inner ring fire divider (11); the outer fire cover (102) and a part of the fire divider base (103) constitute the outer ring fire divider (12).

5. A burner, characterized in that: It comprises a burner head (5), a flame distributor as claimed in any one of claims 1 to 4, a liquid receiving tray (3), and a boiler support (4), all first fire holes (121) facing the same outer ring air duct (14) form a fire hole group (120), and the boiler support (4) comprises a plurality of furnace ears (41) for supporting pots, and each furnace ear (41) is arranged at a position facing the corresponding fire hole group (120).

6. The burner according to claim 5, characterized in that The inner ring air duct (13) is connected to the bottom of the inner ring fire divider (11), and all the outer ring air ducts (14) are radially distributed with the inner ring air duct (13) as the center. The outer ring air duct (14) gradually rises from one end close to the inner ring air duct (13) to the other end. The angle between the outer ring air duct (14) and the horizontal plane is B, and the angle between the large fire hole and the horizontal plane is A. A and B satisfy the following expressions: 30°≤A≤40°, AB≤15°.

7. The burner according to claim 6, characterized in that The burner head (5) is provided with a burner head outer ring channel (51) which is in communication with the outer ring air channel (14); the included angle between the burner head outer ring channel (51) and the horizontal plane is Y, and Y and B satisfy the following expression: 110°≤Y+B≤130°.

8. The burner according to claim 6, characterized in that The number of the outer ring air ducts (14) is 3 or more, the number of the fire hole groups (120) is 3 or more, the number of the furnace ears (41) is 3 or more, and the outer ring air ducts (14), the fire hole groups (120), and the furnace ears (41) correspond to each other one by one.

Images