A blast burner and hob

Abstract

The application discloses a blast burner, which is characterized in that the blast burner comprises a center fire cover, an outer fire cover, a gas distribution disc, a burner head, an air duct, a fan, and a damper nozzle assembly; the fan is fixed on the air duct to form a fan assembly; the air duct assembly is fixed on the burner head; the fan assembly is connected with the burner head through the air duct assembly and is used for guiding air into the burner head; the burner head is connected with the damper nozzle assembly; the center fire cover and the outer fire cover are positioned in alignment and are sequentially placed on the gas distribution disc to form a gas distribution disc assembly, and are positioned and connected on the burner head. The blast burner has good stability, strong universality and low processing cost.

Description

Technical Field

[0001] This invention relates to the field of gas stove technology, and more specifically to a blower burner and stove. Background Technology

[0002] With the increasing emphasis on energy conservation and environmental protection, research on high-efficiency burners has become a major research direction in China. While conventional gas stoves offer improved firepower and thermal efficiency, insufficient air supply during gas combustion can lead to issues such as excessive flue gas and yellow flames. Therefore, forced draft fans are often added to gas stoves. Furthermore, for ordinary gas stoves, the burner holes are manufactured using drilling and multi-segment grooving techniques, requiring a certain distance between them to prevent flame interference and incomplete combustion, resulting in excessive CO content and yellow flames. This results in low heat intensity and low thermal efficiency, wasting fuel, polluting the environment, and harming users' health. Therefore, further improvements to existing technologies are necessary. Summary of the Invention

[0003] The purpose of this invention is to provide a stable and reliable blower burner with a short flame length, high flame hole heat intensity, and higher combustion thermal efficiency in order to overcome the shortcomings of the existing technology.

[0004] Another objective of this invention is to provide a stove that is stable and reliable, has a short flame length, high heat intensity of the fire holes, and higher combustion thermal efficiency.

[0005] The present invention achieves the above-mentioned objective by adopting the following technical solution: a blower burner, characterized in that it includes a central burner cap, an outer burner cap, a gas distribution plate, a burner head, an air duct, a fan, and an air damper nozzle assembly. The fan is fixed on the air duct to form a fan assembly. The air duct is fixed on the burner head. The fan assembly is connected to the burner head through the air duct for introducing air into the burner head. The burner head is connected to the air damper nozzle assembly. The central burner cap and the outer burner cap are aligned and positioned and placed sequentially on the gas distribution plate to form a gas distribution plate assembly, which is then positioned and connected to the burner head.

[0006] As a further explanation of the above scheme, the top of the gas distribution plate is provided with a ring, which is integrated with the gas distribution plate. The outer flame cap is assembled with the gas distribution plate to form a mixing chamber. The outer flame cap has a positioning boss with a groove. The inner side of the top of the ring has an inner conical surface, and the outer flame cap has an outer conical surface and a connecting block. The outer conical surface of the outer flame cap and the inner conical surface of the ring form an annular seam for flame stabilization. The connecting block is provided with a connecting hole.

[0007] Furthermore, the outer flame cover has an annular groove, and multiple connecting blocks are evenly distributed along the circumference on the annular groove; the connecting holes of the connecting blocks are connected to the gas mixing chamber.

[0008] Furthermore, the gas distribution plate is provided with a positioning notch, and the positioning boss of the outer burner cap is in concave-convex fit with the positioning notch.

[0009] Furthermore, the gas distribution plate is provided with an outer ring channel and an inner ring channel. The mixed gas flowing through the outer ring channel flows out and burns through the groove and annular seam of the outer burner cap. In addition to being used for connection, the connecting block of the outer burner cap is also used for setting the fireproof hole of the pot rack.

[0010] Furthermore, the outer conical surface of the outer flame cap is inclined inward, and the inner conical surface of the ring is set parallel to the outer conical surface.

[0011] Furthermore, the damper nozzle assembly includes a damper plate and a nozzle, with the damper plate disposed between the blower assembly and the nozzle, and the damper plate being used to adjust the air volume within the burner head.

[0012] Furthermore, the fan is equipped with a speed control switch, which is used to adjust the speed of the fan.

[0013] Furthermore, it also includes a bottom shell, on which the nozzles of the burner head through the damper nozzle assembly are fixed.

[0014] A stove, characterized in that it includes a stove body, on which the aforementioned blower burner is disposed.

[0015] The beneficial effects that can be achieved by adopting the above-mentioned technical solution in this invention are as follows.

[0016] This invention employs a forced-air burner structure primarily composed of a central burner cap, an outer burner cap, a gas distribution plate, a burner head, an air duct, a blower, and an air damper / nozzle assembly. The blower is fixed to the air duct to form a blower assembly, which is fixed to the burner head. The blower assembly is connected to the burner head via the air duct to introduce air into the burner head. The burner head is connected to the air damper / nozzle assembly. The central burner cap and outer burner cap are aligned and positioned sequentially on the gas distribution plate to form a gas distribution plate assembly, which is then positioned and connected to the burner head. The blower assembly, fitted onto the nozzles of the air damper / nozzle assembly, provides forced-air oxygenation. Simultaneously, the flame holes of the outer burner cap are machined and connected to form a complete circle, enabling slit-fire combustion. Due to forced-air combustion, the flame length is short, the heat intensity of the flame holes is high, and the combustion thermal efficiency is higher. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the burner structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the exploded structure of the burner of the present invention.

[0019] Figure 3 This is a schematic diagram of the burner installation structure of the present invention.

[0020] Figure 4 This is a schematic diagram of the AA cross-sectional structure of the present invention.

[0021] Figure 5 This is a top view of the outer flame cover.

[0022] Figure 6 for Figure 5 BB cross-sectional view.

[0023] Figure 7 for Figure 5 CC section view.

[0024] Figure 8 This is a schematic diagram of the front structure of the outer flame cover.

[0025] Figure 9 This is a schematic diagram of the reverse side structure of the outer flame cap.

[0026] Explanation of reference numerals in the attached drawings: 1. Bottom shell; 2. Center burner cover; 3. Outer burner cover; 3-1. Positioning boss; 3-1; 3-2. Groove; 3-3. Outer conical surface; 3-3. Connecting block; 3-3; 3-4. Connecting hole; 4. Annular seam; 4. Gas distribution plate; 4-1. Outer ring channel; 4-2. Inner ring channel; 4-3. Positioning notch; 5. Burner head; 6. Air duct; 7. Blower; 8. Air damper and nozzle assembly; 8-1. Air damper plate; 8-2. Nozzle; 9. Ring component; 9-1. Inner conical surface. Detailed Implementation

[0027] In the description of this invention, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this invention.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature, and in the description of this invention, "at least" means one or more, unless otherwise explicitly specified.

[0029] In this invention, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] In this invention, unless otherwise specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "below," and "over" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Above," "below," and "below" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings, making the technical solution and beneficial effects of the present invention clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0032] like Figures 1-9 As shown, this invention is a blower burner and stove, applied to a gas stove. It includes a base shell 1, a central burner cap 2, an outer burner cap 3, a gas distribution plate 4, a burner head 5, an air duct 6, a fan 7, and an air damper / nozzle assembly 8. The central burner cap 2 is positioned at the center of the outer burner cap 3. The fan 7 is fixed to the air duct 6 to form a fan assembly. The air duct is fixed to the burner head 5, and the fan assembly is connected to the burner head 5 via the air duct to guide air into the burner head. The burner head 5 is connected to the air damper / nozzle assembly 8. The central burner cap 2 and the outer burner cap 3 are aligned and positioned on the gas distribution plate to form a gas distribution plate assembly. During assembly, the nozzles of the burner head passing through the air damper / nozzle assembly are fixed to the base shell. After the central burner cap and outer burner cap are aligned and placed on the gas distribution plate, they are finally aligned and positioned on the burner head. The air damper / nozzle assembly 8 includes an air damper plate 8-1 and a nozzle 8-2. The air damper plate 8-1 is positioned between the fan assembly and the nozzle, and the air damper plate 8-1 is used to adjust the airflow within the burner head. The fan 7 is equipped with a speed switch, which is used to adjust the speed of the fan.

[0033] The top of the gas distribution plate 4 is provided with a ring 9, wherein the ring 9 and the gas distribution plate 4 can be combined together to form a single part by means of casting, riveting, or other processing methods. The outer flame cap 3 and the gas distribution plate 4 are assembled together to form a mixing chamber; the gas distribution plate 4 is provided with an outer ring channel 4-1 and an inner ring channel 4-2, and the inner ring channel 4-2 communicates with the internal space of the central flame cap 2. The outer flame cap 3 has a positioning boss 3-1, and the positioning boss 3-1 has a groove 3-11; the inner side of the top of the ring 9 has an inner conical surface 9-1, the outer flame cap 3 has an outer conical surface 3-2 and a connecting block 3-3, the outer conical surface 3-2 of the outer flame cap and the inner conical surface 9-1 of the ring 9 form an annular seam 3-4 for flame stabilization, and the connecting block is provided with a connecting hole 3-31. The outer flame cap has an annular groove, and multiple connecting blocks are evenly distributed along the circumference on the annular groove; the connecting holes of the connecting blocks communicate with the mixing chamber. The gas distribution plate is equipped with a positioning notch 4-3, and the positioning boss of the outer burner cap is in concave-convex fit with the positioning notch.

[0034] The outer conical surface of the outer flame cap 3 is an outer conical surface with an inner slope, which forms an exhaust channel with the inner conical surface set on the top inner side of the ring 9. The working principle is that the gas and air mixture enter the outer ring channel and inner ring channel of the gas distribution plate respectively. The mixture flowing through the outer ring channel flows out from the groove, annular groove and exhaust channel of the positioning boss for combustion. In addition to being used for connection, the connecting block is also used for setting the fireproof hole of the pot rack.

[0035] Compared with existing technologies, this invention utilizes gas flowing from nozzles on an air damper nozzle assembly. Due to the gas's velocity, it draws air into the burner head. At the high-fire position or a lower fire level, to ensure complete combustion, a blower is used for forced air intake combined with natural ignition; at other fire levels, natural ignition is employed. The outer flame cap's main flame holes are grooved and connected to form a complete ring for slit-fire combustion. The outer flame cap is placed on the gas distribution plate, with its outer conical surface fitting into the inner conical surface of the gas distribution plate. This slit provides flame stabilization. A blower assembly, consisting of a blower and air duct, is fixed to the burner head and then fitted onto the nozzles. Existing materials can be directly reused for the burner head, resulting in high parts versatility. A direct-insertion valve body can be used, eliminating the need for piping and reducing costs. The forced air intake combined with slit-fire combustion results in a short flame length, high flame hole heat intensity, and higher combustion thermal efficiency.

[0036] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. A blower burner, characterized in that, It includes a central burner cap, an outer burner cap, a gas distribution plate, a burner head, an air duct, a fan, and an air damper / nozzle assembly. The fan is fixed on the air duct to form a fan assembly. The air duct assembly is fixed on the burner head. The fan assembly is connected to the burner head through the air duct assembly to introduce air into the burner head. The burner head is connected to the air damper / nozzle assembly. The central burner cap and outer burner cap are aligned and positioned and placed on the gas distribution plate to form a gas distribution plate assembly, which is then positioned and connected to the burner head. The top of the gas distribution plate is provided with a ring, which is integrated with the gas distribution plate. The outer flame cap is assembled with the gas distribution plate to form a mixing chamber. The outer flame cap has a positioning boss with a groove. The inner side of the top of the ring has an inner conical surface. The outer flame cap has an outer conical surface and a connecting block. The outer conical surface of the outer flame cap and the inner conical surface of the ring form an annular seam for flame stabilization. The connecting block is provided with a connecting hole. The outer flame cover has an annular groove, and multiple connecting blocks are evenly distributed along the circumference on the annular groove; the connecting holes of the connecting blocks are connected to the gas mixing chamber.

2. The blower burner according to claim 1, characterized in that, The gas distribution plate is equipped with a positioning notch, and the positioning boss of the outer burner cap is in concave-convex fit with the positioning notch.

3. The blower burner according to claim 1, characterized in that, The gas distribution plate is equipped with an outer ring channel and an inner ring channel. The mixed gas flowing through the outer ring channel flows out through the groove and annular slit of the outer burner cap for combustion.

4. A blower burner according to claim 1, characterized in that, The outer conical surface of the outer flame cap is inclined inward, and the inner conical surface of the ring is set parallel to the outer conical surface.

5. A blower burner according to claim 1, characterized in that, The damper nozzle assembly includes a damper plate and a nozzle. The damper plate is disposed between the blower assembly and the nozzle, and the damper plate is used to adjust the air volume in the burner head.

6. A blower burner according to claim 5, characterized in that, The fan is equipped with a speed control switch, which is used to adjust the speed of the fan.

7. A blower burner according to claim 1, characterized in that, It also includes a bottom shell, on which the nozzles of the burner head through the damper nozzle assembly are fixed.

8. A stove, characterized in that, It includes a stove body, on which a blower burner as described in any one of claims 1-7 is provided.

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