Burner with flame enhancement function

Abstract

The present invention relates to a burner head with a flame enhancement function, comprising a burner body and a burner arranged in the burner body, wherein the burner has a first combustion zone inside, wherein the air and gas are suitable for mixing and burning in the first combustion zone; the upper part of the burner is also provided with a second combustion zone, wherein the second combustion zone comprises a plurality of annularly arranged auxiliary combustion holes arranged on the upper end surface, wherein the auxiliary combustion holes are all connected to the annular cavity; and the second combustion zone also comprises a fire protection ring arranged on the periphery of the auxiliary combustion holes. The present invention can not only make the gas burn fully, but also increase the combustion area, enhance the flame, and improve the utilization rate of the gas and the power of the product.

Description

Technical Field

[0001] The invention relates to the technical field of gas equipment, and in particular to a burner head with a flame enhancement function. Background Art

[0002] The burner is the core component of gas equipment, which usually determines the parameters and performance of gas equipment such as power and gas utilization rate. Existing burners, especially those of commercial gas equipment, usually have combustion holes on the side wall or bottom of the internal burner. In order to fully burn the gas, the flame needs to be higher away from the bottom of the pot.

[0003] Most of the flames of the above-mentioned burner are concentrated at the bottom of the pot, resulting in a poor cooking experience and low gas utilization rate. In order to make the gas burn fully, the burner needs to be in a semi-open state, which causes a large amount of exhaust gas to enter the kitchen, polluting the kitchen air and being detrimental to the health of the staff. Summary of the invention

[0004] Based on this, it is necessary to provide a burner head with a flame enhancement function, which can not only make the gas burn fully, but also increase the combustion area, enhance the flame, and improve the utilization rate of the gas and the power of the product.

[0005] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical solutions.

[0006] The present invention provides a burner head with a flame enhancement function, comprising a furnace body and a burner arranged in the furnace body, wherein the furnace body has an air inlet for introducing air, a plurality of main fire burning holes are arranged on the side wall of the burner, and an air inlet for introducing fuel gas is arranged at the bottom; an annular cavity is formed between the furnace body and the burner, and the annular cavity is connected with the air inlet;

[0007] The burner has a first combustion zone inside, and the air and gas are suitable for mixing and burning in the first combustion zone;

[0008] A second combustion zone is also provided on the upper part of the burner, and the second combustion zone includes a plurality of auxiliary combustion holes arranged in an annular manner and provided on the upper end surface, and the auxiliary combustion holes are all communicated with the annular cavity; the second combustion zone also includes a fire protection ring provided on the periphery of the auxiliary combustion hole, and the fire protection ring extends upward relative to the upper end surface of the burner, and the height of the fire protection ring matches the diameter of the auxiliary combustion hole.

[0009] Preferably, the auxiliary combustion holes are one to two circles.

[0010] Preferably, the fire protection ring is arranged on the burner and extends upward along the outer edge of the upper end surface of the burner.

[0011] Preferably, the upper end surface of the fire protection ring is flush with the upper end surface of the furnace body.

[0012] Preferably, the fire protection ring is arranged on the furnace body, and the inner diameter of the fire protection ring is matched with the outer diameter of the upper part of the burner.

[0013] Preferably, the burner is embedded in the furnace body, and a flange is provided in the furnace body, a flange is provided on the upper part of the burner, and the lower end surface of the flange is supported on the flange.

[0014] Preferably, a premixing chamber is provided at the lower part of the burner, and the air inlet is connected to the premixing chamber; an air inlet hole and an air outlet hole are provided on the premixing chamber, and the air is suitable for entering the premixing chamber through the air inlet, the annular cavity and the air inlet hole in sequence, and after being mixed with the fuel gas, entering the first combustion zone through the air outlet hole.

[0015] Preferably, a side ignition device is also provided on the side of the furnace body.

[0016] Preferably, a boss suitable for installation and transportation is provided at the waist of the furnace body, and the side ignition device is arranged on the boss.

[0017] Preferably, the side ignition device comprises an ignition electrode, a flame nozzle and a fire pressure cover, and the flame nozzle is connected to the premixed fuel gas through a conduit.

[0018] The present invention provides a flange on the end face of the burner, provides a plurality of auxiliary combustion holes in the circumferential direction of the flange, and provides a fire protection ring. The fire protection ring and the flange define a second combustion zone. Through the combustion in the second combustion zone, not only the combustion area can be increased, but also air can be supplemented through the auxiliary combustion holes, so that the gas in the second combustion zone can be burned more completely and the flame temperature is higher, thereby improving the utilization rate of the gas and increasing the power and efficiency of the burner head. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is one of the overall structural schematic diagrams of the burner with flame enhancement function in the first embodiment of the present invention;

[0020] Figure 2 This is the second schematic diagram of the overall structure of the burner with flame enhancement function in the first embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the exploded structure of the burner head with flame enhancement function in the first embodiment;

[0022] Figure 4 This is a schematic diagram of the top view of the burner head with flame enhancement function in the first embodiment;

[0023] Figure 5 for Figure 4 AA cross-sectional structure diagram;

[0024] Figure 6 for Figure 4 Schematic diagram of the cross-sectional structure of the middle BB;

[0025] Figure 7 Schematic diagram of the three-dimensional structure of the burner in the first embodiment;

[0026] Figure 8 This is a schematic diagram of the overall structure of a burner with a flame enhancement function in the second embodiment;

[0027] Fig. 9 This is a schematic cross-sectional view of the burner head with flame enhancement function in the second embodiment;

[0028] Fig.10 It is a schematic diagram of the three-dimensional structure of the burner in the second embodiment.

[0029] The realization of the purpose of the present invention and its functions and principles will be further explained in the specific implementation manner in conjunction with the accompanying drawings. DETAILED DESCRIPTION

[0030] The following is a further description with reference to the accompanying drawings and specific embodiments.

[0031] Embodiment 1:

[0032] like Figures 1 to 6 As shown, this embodiment provides a burner head 100 with a flame enhancement function, comprising a furnace body 110 and a burner 120 disposed in the furnace body 110, wherein the furnace body 110 has an air inlet 111 for introducing gas and an air inlet 112 for introducing air, and an annular cavity 130 is formed between the furnace body 110 and the burner 120, and the annular cavity 130 is connected to the air inlet 112; the burner 120 has a first combustion zone 10 inside, and the gas and air are in the first combustion zone 10 (such as Figure 5 The gas includes but is not limited to liquefied petroleum gas, natural gas, biogas and other combustible gases. The air inlet 112 is connected to a blower or similar equipment, and air is introduced into the annular cavity 130 through the blower. By adjusting the optimal ratio of gas to air, the gas is burned as fully as possible.

[0033] The burner head 100 of this embodiment not only has a first combustion zone 10, but also is provided with a second combustion zone 20 with a larger combustion area. A plurality of main fire combustion holes 121 are provided on the side wall of the burner 120, and an air inlet 111 for introducing gas is provided at the bottom; the gas is ignited at the main fire combustion holes 121 and burns in the first combustion zone 10; and the newly-added second combustion zone 20 is located at the upper part of the burner 120, and after the gas equipment is installed, the bottom of the pot is located in the second combustion zone 20, and the larger area makes the temperature of the bottom of the pot more uniform.

[0034] The structure and principle of the second combustion zone 20 are described in detail below.

[0035] Figure 5 and Figure 6 They are cross-sectional views of the furnace head 100 in two directions. Figure 7 1 is a schematic diagram of the three-dimensional structure of the burner 120. Figure 5~Figure 7 As shown, the burner 120 of this embodiment is substantially columnar, with a flange 122 at the upper portion of the burner 120, and a plurality of annularly arranged auxiliary combustion holes 123 are provided along the circumference of the flange 122. These auxiliary combustion holes 123 are all connected to the annular cavity 130, so that the air in the annular cavity 130 can enter the second combustion zone 20 through the auxiliary combustion holes 123. Moreover, it has been found through experiments that the auxiliary combustion holes 123 are preferably one or two circles.

[0036] At the same time, the second combustion zone 20 also includes a fire protection ring 124 arranged on the periphery of the auxiliary combustion hole 123. The fire protection ring 124 extends upward relative to the upper end surface of the burner 120, and the height of the fire protection ring 124 matches the diameter of the auxiliary combustion hole 123.

[0037] like Figure 5 , 6 As shown in Figures 7 and 8, the fire protection ring 124 of this embodiment is arranged on the burner 120 and extends upward along the outer edge of the upper end surface of the burner 120, and the upper end surface of the fire protection ring 124 is flush with the upper end surface of the furnace body 110, making the furnace head 100 look more beautiful.

[0038] It has been found through experiments that when the relationship between the height of the fire protection ring 124 and the diameter of the auxiliary combustion hole 123 changes, the flame formed at the auxiliary combustion hole 123 will also change accordingly.

[0039] In this embodiment, a premixing chamber 125 is provided at the lower portion of the burner 120, and the air inlet 112 is connected to the premixing chamber 125; an air inlet hole 126 and an air outlet hole 127 are provided on the premixing chamber 125, and the air is suitable for entering the premixing chamber 125 through the air inlet 112, the annular cavity 130 and the air inlet hole 126 in sequence, and after mixing with the fuel gas, enters the first combustion zone 10 through the air outlet hole 127.

[0040] In addition, the burner 120 of this embodiment is embedded in the furnace body 110, and the outer diameter of the fire protection ring 124 is matched with the inner diameter of the furnace body 110, so that the distance between the auxiliary combustion hole 123 and the fire protection ring 124 is constant, so that the flame formed at the auxiliary combustion hole 123 is stabilized in the best state and will not change due to improper installation. The inner diameter of the fire protection ring 124 matches the outer diameter of the flange 122, which also facilitates the removal and placement of the burner 120. At the same time, a flange 113 (such as Figure 3 and 5 ), the lower end surface of the flange 122 is supported on the flange 113, so that the burner 120 and the furnace body 110 can be relatively fixed, and the above-mentioned annular cavity 130 can be formed between the burner 120 and the furnace body 110.

[0041] In addition, this embodiment also has a side ignition device 140 for igniting the mixed gas in the first combustion zone 10. Specifically, a boss 114 for mounting and carrying the burner head is provided at the waist of the furnace body 110, and the side ignition device 140 is provided on the boss 114. The side ignition device 140 includes an ignition electrode 141, a flame nozzle 142, a pressure cover 143 and an induction electrode (not shown). The ignition electrode 141 is used to ignite the premixed gas ejected from the flame nozzle 142 using an electric arc; the flame nozzle 142 is connected to the premixed gas through a conduit 144. The premixed gas is a mixture of combustible gas and air, and can be directly ignited and burned. The fire suppression cover 143 is used to direct the flame from the flame nozzle 142 to the second combustion zone 20 to ignite the gas ejected from the first combustion zone 10; and the sensing electrode is used to detect whether the flame nozzle 142 has been ignited. If not, the relevant mechanism is controlled to stop supplying gas to the above-mentioned air inlet 111, thereby avoiding safety hazards caused by gas leakage.

[0042] It can be seen that this embodiment forms a second combustion zone 20 by arranging an auxiliary combustion hole 123 and a fire protection ring 124 on the burner 120, thereby increasing the combustion area of ​​the burner head 100, and the added auxiliary combustion holes 123 and the fire protection ring 124 can supplement air and form an additional flame at the auxiliary combustion hole 123 by controlling the reasonable relationship between the height of the fire protection ring 124 and the diameter of the auxiliary combustion hole 123, thereby enhancing the flame of the burner head 100, improving the utilization rate of the gas, and increasing the power of the burner head.

[0043] Embodiment 2:

[0044] Figure 8 is a schematic diagram of the overall structure of the furnace head 200 of this embodiment; Fig. 9 is a schematic cross-sectional structural diagram of the furnace head 200 of this embodiment; Fig.10 Schematic diagram of the three-dimensional structure of the burner 220 of this embodiment.

[0045] Reference Figures 8-10 As shown, the present embodiment provides another burner head 200 with a flame enhancement function. The structure of the burner head 200 of the present embodiment is basically the same as that of the first embodiment, that is, the burner 220 of the present embodiment is basically columnar, and a flange 222 is provided on the upper end surface of the burner 220, and a plurality of auxiliary combustion holes 223 are arranged in a ring shape along the circumference of the flange 222. These auxiliary combustion holes 223 are through-set on the flange 222 to connect the second combustion zone 20 and the annular cavity 230, so that the air at the air inlet 212 can enter the second combustion zone 20 through the annular cavity 230 and the auxiliary combustion holes 223 in sequence.

[0046] The main difference between this embodiment and the first embodiment is that the fire protection ring 224 is arranged on the furnace body 210 instead of the burner 220, and the fire protection ring 224 is located at the outer circle of the auxiliary combustion hole 223. The second combustion zone 20 is defined by the upper space of the burner 220 and the fire protection ring 224.

[0047] In addition, the inner diameter of the fire protection ring 224 matches the outer diameter of the flange 222 of the burner 220, so that the distance between the auxiliary combustion hole 223 and the fire protection ring 224 is constant, so that the flame formed at the auxiliary combustion hole 223 is stabilized in the best state and will not change due to improper installation. The inner diameter of the fire protection ring 224 matches the outer diameter of the flange 222, which also facilitates the removal and placement of the burner 220. Similarly, a flange 213 (such as Fig. 9 As shown in the figure, the lower end surface of the flange 222 is supported on the flange 213, so that the burner 220 and the furnace body 210 can be relatively fixed, and the above-mentioned annular cavity 230 can be formed between the burner 220 and the furnace body 210.

[0048] In summary, the present invention provides a flange on the end face of the burner, provides a plurality of auxiliary combustion holes in the circumferential direction on the flange, and provides a fire protection ring, and the fire protection ring and the flange define a second combustion zone. Through the combustion in the second combustion zone, not only can additional flames be added to increase the combustion area, but also air can be supplemented through the auxiliary combustion holes, so that the gas in the second combustion zone can burn more completely and the flame temperature is higher, thereby improving the utilization rate of the gas and increasing the power and efficiency of the burner.

[0049] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A burner head with flame enhancement function, comprising a burner body and a burner arranged in the burner body, characterized in that: The furnace body has an air inlet for introducing air, a plurality of main fire burning holes are arranged on the side wall of the burner, and an air inlet for introducing fuel gas is arranged at the bottom; an annular cavity is formed between the furnace body and the burner, and the annular cavity is connected to the air inlet; The burner has a first combustion zone inside, and the air and gas are suitable for mixing and burning in the first combustion zone; A second combustion zone is also provided on the upper part of the burner, and the second combustion zone includes a plurality of auxiliary combustion holes arranged in an annular manner and provided on the upper end surface, and the auxiliary combustion holes are all communicated with the annular cavity; the second combustion zone also includes a fire protection ring provided on the periphery of the auxiliary combustion holes, and the fire protection ring is provided on the burner and extends upward along the outer edge of the upper end surface of the burner, and the height of the fire protection ring matches the diameter of the auxiliary combustion hole.

2. The burner head with flame enhancement function as claimed in claim 1, characterized in that: The auxiliary combustion holes are one or two circles.

3. The burner head with flame enhancement function as claimed in claim 2, characterized in that: The upper end surface of the fire protection ring is flush with the upper end surface of the furnace body.

4. The burner head with flame enhancement function as claimed in any one of claims 1 to 3, characterized in that: The burner is embedded in the furnace body, and a flange is arranged in the furnace body. A flange is arranged on the upper part of the burner, and the lower end surface of the flange is supported on the flange.

5. The burner head with flame enhancement function as claimed in claim 1, characterized in that: A premixing chamber is provided at the lower part of the burner, and the air inlet is connected to the premixing chamber; an air inlet hole and an air outlet hole are provided on the premixing chamber, and the air is suitable for entering the premixing chamber through the air inlet, the annular cavity and the air inlet hole in sequence, and after being mixed with the fuel gas, entering the first combustion zone through the air outlet hole.

6. The burner head with flame enhancement function as claimed in claim 1, characterized in that: A side ignition device is also arranged on the side of the furnace body.

7. The burner head with flame enhancement function as claimed in claim 6, characterized in that: The waist of the furnace body is provided with a boss suitable for installation and transportation, and the side ignition device is arranged on the boss.

8. The burner head with flame enhancement function as claimed in claim 6 or 7, characterized in that: The side ignition device comprises an ignition electrode, a flame nozzle and a fire pressure cover, and the flame nozzle is connected to the premixed fuel gas through a conduit.

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