Complete-combustion mixed burner

Abstract

The utility model discloses a sufficient combustion mixing burner which comprises a main body, the main body is provided with a fire cover, a mixing cavity is arranged between the fire cover and the main body, the main body is provided with a gas guide groove, one part of the bottom of the gas guide groove is provided with a gas inlet hole communicated with the mixing cavity, and the other part of the bottom of the gas guide groove is provided with a plurality of steps protruding upwards. The step is used for fully mixing gas and air; one part of the bottom of the gas guide groove is provided with the gas inlet hole, and the other part of the bottom of the gas guide groove is provided with the step, so that part of gas entering the gas guide groove is not directly exhausted from the gas inlet hole but is firstly contacted with the step and then exhausted from the gas inlet hole, and due to the existence of the step, the space size of the mixing cavity is gradually reduced towards the direction close to the gas inlet hole. And then the fuel gas and the air are fully mixed under the action of the step, so that the gas can be fully combusted on the fire cover.

Description

Technical Field

[0001] The utility model relates to the field of gas stoves, in particular to a full combustion mixing burner. Background Art

[0002] A commonly used burner for a gas stove includes a main body and a fire cover, with a mixing chamber between the fire cover and the main body, an air inlet connected to the mixing chamber at the bottom of the main body, and the air inlet is connected to the ejector tube. The existing air inlet does not have a structure for fully mixing the gas and air, which results in the burner being unable to fully burn the gas. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a fully burning mixed burner.

[0004] The fully combustion mixing burner according to the first aspect of the utility model embodiment includes a main body, the main body is provided with a fire cover, a mixing chamber is provided between the fire cover and the main body, the main body has an air guide groove, a part of the bottom of the air guide groove has an air inlet hole connected to the mixing chamber, and another part of the bottom of the air guide groove has a plurality of steps protruding upward, and the steps are used to fully mix the gas and air.

[0005] The fully combusting mixing burner according to the embodiment of the utility model has at least the following technical effects: a part of the bottom of the gas guide groove has an air inlet hole, and the other part has a step, so that part of the gas entering the gas guide groove is not discharged directly from the air inlet hole, but first contacts the step and then is discharged from the air inlet hole, and due to the existence of the step, the space size of the mixing chamber is gradually reduced toward the air inlet hole, so that the gas and air are fully mixed under the action of the step, so that the gas can be fully burned on the fire cover.

[0006] According to some embodiments of the utility model, the two sides of the bottom surface of the air guide groove are respectively provided with a step and an air inlet hole, and the top of the step is provided with a guide structure, and the guide structure is used to gather the gas above the step to the center of the step close to the air inlet hole and guide it to the bottom surface of the air guide groove.

[0007] According to some embodiments of the utility model, the inner side wall of the air guide groove is circular, the step is semicircular when viewed from the axial direction of the inner side wall, and the cross-sectional shape of the step is a right triangle.

[0008] According to some embodiments of the present invention, the top of the side wall of the air inlet near the step has an inclined surface inclined toward the bottom of the air guide groove.

[0009] According to some embodiments of the present invention, the air inlet hole is located on the bottom surface of the air guide groove and the inner side wall of the air guide groove.

[0010] According to some embodiments of the present invention, the fire cover includes an outer ring cover and an inner ring cover.

[0011] According to some embodiments of the present invention, the outer ring cover wraps the outer wall of the main body.

[0012] According to some embodiments of the utility model, the outer ring cover includes a connecting end face, an outer side face and an inner side face, the bottom of the outer side face and the bottom of the inner side face are both connected to the connecting end face, the top of the outer side face has a flange, and the main body is located between the connecting end face and the flange.

[0013] According to some embodiments of the present invention, a position of the mixing chamber corresponding to the air inlet hole has a recessed portion for better gas circulation, and the air inlet hole is located in the recessed portion.

[0014] According to some embodiments of the present invention, the recessed portion is funnel-shaped.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic structural diagram of a fully-combustion mixed burner according to an embodiment of the utility model;

[0018] Figure 2 A schematic diagram of the top structure of a fully-combustion mixed burner at a certain viewing angle;

[0019] Figure 3 A schematic diagram of the top structure of a fully-combustion mixed burner from another perspective;

[0020] Figure 4 A cross-sectional view of a fully combusted mixing burner;

[0021] Figure 5 A schematic diagram of the top structure of a fully-combustion mixed burner from another perspective;

[0022] Figure 6 It is a schematic diagram of the structure in which the main body is installed with an inner ring cover.

[0023] Figure numerals: main body 100, mixing chamber 110, recessed portion 111, air guide groove 120, air inlet hole 121, step 122, large arc profile 1221, small arc profile 1222, connecting surface 1223, inclined surface 123, flow guide structure 130, fire cover 200, outer ring cover 210, connecting end surface 211, outer side surface 212, inner side surface 213, flange 214, inner ring cover 220. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments 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.

[0025] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, 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 cannot be understood as a limitation on the present invention.

[0026] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include 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.

[0027] 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.

[0028] Reference Figure 1 , 2 As shown, the fully combustion mixing burner according to the embodiment of the utility model includes a main body 100, the main body 100 is provided with a fire cover 200, a mixing chamber 110 is provided between the fire cover 200 and the main body 100, the main body 100 has an air guide groove 120 for connecting with the ejector pipe, and a part of the bottom of the air guide groove 120 has an air inlet hole 121 communicating with the mixing chamber 110, as shown in FIG. Figure 2 , 3 As shown, another portion of the bottom of the gas guide groove 120 has a plurality of upwardly protruding steps 122, and the steps 122 are used to fully mix the gas and the air.

[0029] For example, Figure 2 , 3 As shown, the inner wall of the gas guide groove 120 is circular, and an air inlet hole 121 is provided on the right side of the bottom surface of the gas guide groove 120. When viewed from a top view, the area of ​​the air inlet hole 121 is one-third of the area of ​​the bottom surface, and a step 122 is provided on the left side of the bottom surface of the gas guide groove 120; when the ejector tube transports the mixed gas (fuel gas and air) into the gas guide groove 120, a small part of the mixed gas is directly discharged from the air inlet hole 121, and most of the mixed gas first contacts the step 122 and the bottom surface of the gas guide groove 120 and then is discharged from the air inlet hole 121. The fuel gas and air in the mixed gas are fully mixed under the action of the step 122 and the gradual reduction of the spatial size of the mixing chamber 110 toward the direction close to the air inlet hole 121, so that the gas can be fully burned on the fire cover 200; it is conceivable that the step 122 can be one, two or more.

[0030] In some embodiments of the present invention, Figure 2 , 3 As shown, the left and right sides of the bottom surface of the gas guide groove 120 are respectively provided with a step 122 and an air inlet hole 121, and the top of the step 122 is provided with a guide structure 130. The guide structure 130 is used to gather the gas above the step 122 to the center of the step 122 close to the air inlet hole 121 (the middle of the right end) and guide it to the bottom surface of the gas guide groove 120. By providing the guide structure 130 on the step 122, it is ensured that the fuel gas and air are fully mixed, so that the gas can be fully burned.

[0031] In a further embodiment of the present invention, Figure 3 , 4 As shown, the inner side wall of the air guide groove 120 is circular, the step 122 is semicircular when viewed from the axial direction of the inner side wall, and the cross-sectional shape of the step 122 is a right triangle, that is, the top surface of the step 122 includes a large arc line 1221, a small arc line 1222 and a connecting surface 1223, the large arc line 1221 is located above the small arc line 1222, the large arc line 1221 is connected to the inner side wall of the air guide groove 120, and the small arc line 1222 is provided on the air guide groove 12 0 and is located in the middle of the bottom surface of the gas guide groove 120, a connecting surface 1223 is connected between the large arc profile 1221 and the small arc profile 1222, and the gas above the step 122 is guided to the small arc profile 1222 under the action of the connecting surface 1223 and moves from the small arc profile 1222 to the bottom surface of the gas guide groove 120, and then discharged from the air inlet 121. The guide structure 130 adopts the above structure to ensure that the fuel gas and air are fully mixed so that the gas can be fully burned.

[0032] In some embodiments of the present invention, Figure 2 ,3 As shown in FIG. 4 , the top of one side wall of the air inlet hole 121 close to the step 122 has an inclined surface 123 inclined toward the bottom of the air guide groove 120 , so that the gas on the bottom surface of the air guide groove 120 can enter the mixing chamber 110 more smoothly.

[0033] In some embodiments of the present invention, Figure 2 As shown, the air inlet holes 121 are located on the bottom surface of the air guide groove 120 and the inner side wall of the air guide groove 120 so that the gas can enter the mixing chamber 110 more smoothly.

[0034] In some embodiments of the present invention, Figure 1 As shown, the fire cover 200 includes an outer ring cover 210 and an inner ring cover 220 .

[0035] In a further embodiment of the present invention, Figure 1 , 5 As shown, the outer ring cover 210 wraps the outer wall of the main body 100, so that the outer ring cover 210 and the main body 100 can be made of different materials, so that the manufacturing cost of the burner is low.

[0036] In a further embodiment of the present invention, Figure 1 , 5 As shown, the outer ring cover 210 includes a connecting end face 211, an outer side face 212 and an inner side face 213. The bottom of the outer side face 212 and the bottom of the inner side face 213 are both connected to the connecting end face 211. The top of the outer side face 212 has a flange 214. The main body 100 is located between the connecting end face 211 and the flange 214. The flange 214 is provided to fix the main body 100 on the outer ring cover 210.

[0037] In some embodiments of the present invention, Figure 6 As shown, the mixing chamber 110 has a recessed portion 111 at a position corresponding to the air inlet hole 121 for better gas circulation, and the air inlet hole 121 is located in the recessed portion 111 to allow the gas to better enter the mixing chamber 110 to ensure full combustion of the gas.

[0038] In a further embodiment of the present invention, Figure 6 As shown, the recessed portion 111 is funnel-shaped, so that the gas can move along the side wall of the recessed portion 111 and enter the mixing chamber 110 better.

[0039] In the description of this specification, the description with reference to the terms "some embodiments" or "it is conceivable that" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A fully combustion mixed burner, characterized in that: include: The main body is provided with a fire cover, a mixing chamber is provided between the fire cover and the main body, the main body has an air guide groove, a part of the bottom of the air guide groove has an air inlet hole connected to the mixing chamber, and another part of the bottom of the air guide groove has a plurality of steps protruding upward, and the steps are used to fully mix the gas and air.

2. The fully combustion mixed burner according to claim 1, characterized in that: The bottom surface of the air guide groove is provided with a step and an air inlet hole on both sides respectively, and the top of the step is provided with a guide structure, which is used to gather the gas above the step to the center of the step close to the air inlet hole and guide it to the bottom surface of the air guide groove.

3. The full combustion mixed burner according to claim 2, characterized in that: The inner side wall of the air guide groove is circular, the step is semicircular when viewed from the axial direction of the inner side wall, and the cross-sectional shape of the step is a right triangle.

4. The fully combustion mixed burner according to claim 1, characterized in that: The top of the side wall of the air inlet close to the step has an inclined surface inclined toward the bottom of the air guide groove.

5. The fully-combustion mixed burner according to claim 1, characterized in that: The air inlet holes are located on the bottom surface of the air guide groove and the inner side wall of the air guide groove.

6. The fully combustion mixed burner according to claim 1, characterized in that: The fire cover comprises an outer ring cover and an inner ring cover.

7. The complete combustion mixed burner according to claim 6, characterized in that: The outer ring cover wraps the outer wall of the main body.

8. The complete combustion mixed burner according to claim 7, characterized in that: The outer ring cover includes a connecting end face, an outer side face and an inner side face, the bottom of the outer side face and the bottom of the inner side face are both connected to the connecting end face, the top of the outer side face has a flange, and the main body is located between the connecting end face and the flange.

9. The fully-combustion mixed burner according to claim 1, characterized in that: The mixing chamber has a recessed portion at a position corresponding to the air inlet hole for better gas circulation, and the air inlet hole is located in the recessed portion.

10. The complete combustion mixed burner according to claim 9, characterized in that: The recessed portion is funnel-shaped.

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