Downdraft burner assembly

Abstract

The utility model discloses a bottom air inlet burner assembly, comprising a base, the base comprising an inner ring fire cover seat and an outer ring fire cover seat formed in one piece; the inner ring fire cover seat is connected to the fire separation cavity of the outer ring fire cover seat through at least two inclined guide cavities, an inclined surface is arranged in the fire separation cavity, and the end of the guide cavity is flush with the inclined surface. The utility model can not only realize the distribution of the mixed gas from the inclined surface to both sides through the guide cavity to achieve the guide effect, but also can meet the use requirements of a burner with a smaller diameter, improve energy efficiency, and avoid the flashback phenomenon.

Description

Technical Field

[0001] The utility model relates to the technical field of burners, in particular to a downwind burner assembly. Background Art

[0002] At present, the inner-outer-outer type (Siemens type) bottom-inlet air-fire burners on the market generally have more than three guide chambers to solve the problem of flame uniformity, which not only makes the manufacturing process complicated, but also has high costs. The burner with the above structure has a large diameter and a large flame combustion radius, which is not conducive to improving energy efficiency. At the same time, it leads to an overly large fire distribution chamber, which is easy to cause problems such as flashback.

[0003] The burner's extinction protection pin and ignition pin of the above-mentioned structure are generally far from the center point, resulting in a larger diameter of the inner ring fire cover, which is not conducive to improving energy efficiency. Utility Model Content

[0004] The utility model aims to provide a technical solution for a down-wind burner assembly in view of the deficiencies in the prior art, which can not only realize the distribution of the mixed gas from the inclined surface to both sides through the guide cavity to achieve the guide effect, but also meet the use requirements of a burner with a smaller diameter, improve energy efficiency and avoid flashback.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] Downdraft burner assembly, including

[0007] A base, the base comprising an inner ring fire cover base and an outer ring fire cover base formed in one piece;

[0008] Features:

[0009] The inner ring fire cover seat is connected to the fire dividing chamber of the outer ring fire cover seat through at least two inclined guide chambers. An inclined surface is provided in the fire dividing chamber, and the end of the guide chamber is flush with the inclined surface. Through the design of the above structure, not only can the mixed gas be distributed to both sides from the inclined surface through the guide chamber to achieve the guide effect, but also it can meet the use requirements of smaller diameter burners, improve energy efficiency and avoid backfire.

[0010] Furthermore, the inner ring fire cover seat is connected to the inner ring fire cover through a positioning assembly, and inner ring fire holes are distributed on the inner ring fire cover. The positioning assembly facilitates the rapid assembly between the inner ring fire cover and the inner ring fire cover seat, which is beneficial for the ignition needle to align with the ignition package and the extinguishing protection needle to align with the extinguishing protection package.

[0011] Furthermore, an ignition package and a flameout protection package are provided on the outer circumferential side of the inner ring fire cover, and the ignition package and the flameout protection package protrude from the outer ring fire cover. The design of this structure can not only lengthen the radius, but also make the inner ring fire cover smaller, and the distance between the ignition needle and the flameout protection needle can be closer, thereby reducing the manufacturing cost.

[0012] Furthermore, the inner ring fire cover is provided with a fire transfer groove, which is located above the ignition package and the flameout protection package. The design of the fire transfer groove can not only transfer fire to the ignition package and the flameout protection package, but also stabilize the flame of the inner ring fire outlet.

[0013] Furthermore, the inner ring fire cover is provided with an anti-overflow plate, the anti-overflow plate is close to the ignition package, and the inner ring fire cover is located between the anti-overflow plate and the ignition package without an inner ring fire outlet hole, which is beneficial to reducing the temperature of the anti-overflow plate and improving durability.

[0014] Furthermore, the positioning assembly includes a positioning block and a positioning groove. The positioning block protrudes from the top surface of the inner ring fire cover seat. The inner ring fire cover is provided with a positioning groove. The positioning block is embedded in the positioning groove to achieve positioning assembly between the inner ring fire cover and the inner ring fire cover seat.

[0015] Furthermore, a mounting hole is provided between two adjacent inclined surfaces for mounting the outer ring fire cover.

[0016] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0017] 1. The utility model can not only realize the distribution of the mixed gas from the inclined surface to both sides through the guide cavity to achieve the guide effect, but also can meet the use requirements of the burner with a smaller diameter, improve energy efficiency and avoid the flashback phenomenon.

[0018] 2. The design of the ignition package and the flameout protection package can not only lengthen the radius, but also make the inner ring fire cover smaller, and the distance between the ignition needle and the flameout protection needle can be closer, thereby reducing the manufacturing cost; the design of the fire transfer groove can not only transfer fire to the ignition package and the flameout protection package, but also stabilize the flame of the inner ring fire hole; the inner ring fire cover is located between the anti-overflow plate and the ignition package, and no inner ring fire hole is set, which is beneficial to reduce the temperature of the anti-overflow plate and improve durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings:

[0020] Figure 1 This is a structural schematic diagram of a bottom air inlet burner assembly of the utility model;

[0021] Figure 2 for Figure 1 A top view of

[0022] Figure 3 for Figure 2 Schematic diagram of the structure in the AA direction;

[0023] Figure 4 It is a structural schematic diagram of the base in the utility model;

[0024] Figure 5This is a schematic diagram of the structure of the inner ring fire cover in the utility model;

[0025] Figure 6 for Figure 5 Schematic diagram of the structure in the B direction.

[0026] In the figure: 1-base; 101-outer ring fire cover seat; 102-inner ring fire cover seat; 103-flow guide cavity; 104-fire distribution cavity; 105-inclined surface; 106-positioning block; 107-mounting hole;

[0027] 2-Outer ring fire cover;

[0028] 3-inner ring fire cover; 301-anti-overflow plate; 302-ignition package; 303-extinguishing protection package; 304-fire transfer groove; 305-positioning groove; 306-inner ring fire outlet hole. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0031] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0032] like Figures 1 to 6 As shown, the utility model shows a bottom air inlet burner assembly, which includes a base 1, an inner ring fire cover 3 and an outer ring fire cover 2.

[0033] The base 1 includes an integrally formed inner ring fire cover seat 102 and an outer ring fire cover seat 101. The inner ring fire cover seat 102 is connected to the fire separation chamber 104 of the outer ring fire cover seat 101 through at least two inclined diversion chambers 103. The present application preferably uses two diversion chambers 103. An inclined surface 105 is provided in the fire separation chamber 104. The end of the diversion chamber 103 is flush with the inclined surface 105. A mounting hole 107 is provided between two adjacent inclined surfaces 105 for mounting the outer ring fire cover 2.

[0034] Through the design of the above structure, not only can the mixed gas be distributed to both sides through the inclined surface 105 through the guide cavity 103 to achieve the guide effect, but it can also meet the use requirements of a smaller diameter burner, improve energy efficiency, and avoid flashback.

[0035] The inner ring fire cover seat 102 is connected to the inner ring fire cover 3 through a positioning assembly, and the positioning assembly includes a positioning block 106 and a positioning groove 305. The positioning block 106 protrudes from the top surface of the inner ring fire cover seat 102, and the inner ring fire cover 3 is provided with a positioning groove 305. The positioning block 106 is embedded in the positioning groove 305 to achieve the positioning and assembly between the inner ring fire cover 3 and the inner ring fire cover seat 102. Inner ring fire outlet holes 306 are distributed on the inner ring fire cover 3. The positioning assembly facilitates the rapid assembly between the inner ring fire cover 3 and the inner ring fire cover seat 102, and is conducive to aligning the ignition needle with the ignition package 302 and the flameout protection needle with the flameout protection package 303.

[0036] An ignition package 302 and a flameout protection package 303 are provided on the outer circumferential side of the inner ring fire cover 3. The ignition package 302 and the flameout protection package 303 protrude from the outer ring fire cover 2. The design of this structure can not only lengthen the radius, but also make the inner ring fire cover 3 smaller, so that the distance between the ignition needle and the flameout protection needle can be closer, thereby reducing the manufacturing cost.

[0037] The inner ring fire cover 3 is provided with a fire transfer groove 304, which is located above the ignition package 302 and the flameout protection package 303. The design of the fire transfer groove 304 can not only transfer fire to the ignition package 302 and the flameout protection package 303, but also stabilize the flame of the inner ring fire outlet hole 306.

[0038] The inner ring fire cover 3 is provided with an anti-overflow plate 301, which is close to the ignition package 302. The inner ring fire cover 3 is located between the anti-overflow plate 301 and the ignition package 302 and is not provided with an inner ring fire hole 306, which is beneficial to reducing the temperature of the anti-overflow plate 301 and improving durability.

[0039] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. Downward air inlet burner assembly, including A base, the base comprising an inner ring fire cover base and an outer ring fire cover base formed integrally; Features: The inner ring fire cover seat is connected to the fire dividing cavity of the outer ring fire cover seat through at least two inclined guide cavities. An inclined surface is arranged in the fire dividing cavity, and the end of the guide cavity is flush with the inclined surface.

2. The downdraft burner assembly according to claim 1, characterized in that: The inner ring fire cover seat is connected with the inner ring fire cover through a positioning component, and the inner ring fire cover is provided with inner ring fire outlet holes.

3. The downdraft burner assembly according to claim 2, characterized in that: An ignition package and a flameout protection package are provided on the outer circumferential side surface of the inner ring fire cover, and the ignition package and the flameout protection package protrude from the outer ring fire cover.

4. The downdraft burner assembly according to claim 3, characterized in that: The inner ring fire cover is provided with a fire transfer groove, and the fire transfer groove is located above the ignition package and the flameout protection package.

5. The downdraft burner assembly according to claim 3, characterized in that: The inner ring fire cover is provided with an anti-overflow plate, the anti-overflow plate is close to the ignition package, the inner ring fire cover is located between the anti-overflow plate and the ignition package, and the inner ring fire outlet hole is not provided.

6. The downdraft burner assembly according to claim 2, characterized in that: The positioning assembly includes a positioning block and a positioning groove. The positioning block protrudes from the top surface of the inner ring fire cover seat. The inner ring fire cover is provided with the positioning groove. The positioning block is embedded in the positioning groove to achieve positioning assembly between the inner ring fire cover and the inner ring fire cover seat.

7. The downdraft burner assembly according to claim 1, characterized in that: A mounting hole is provided between two adjacent inclined surfaces for mounting the outer ring fire cover.

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