Low-cost multi-channel single-split-flow rotating circumferential type multi-head burner

Abstract

The utility model discloses a low-cost multi-channel single-split-flow rotating-circle-type multi-head burner which comprises a gas distribution base, a center spray head and an outer ring spray head. A plurality of outer ring air supply channels are arranged on the periphery of the outer ring air supply cavity, and each outer ring air supply channel comprises a first air supply section and a second air supply section; the first air supply section extends outwards from the outer ring air supply cavity and is connected to the end of the second air supply section in an arc transition mode. A plurality of outer ring gas supply seats are arranged on the outer ring gas supply channel at intervals; the center nozzle and the outer ring nozzle are of cap-shaped structures made of metal plates and can be tightly pressed and fixed to the center gas supply base and the outer ring gas supply base respectively. According to the utility model, the outer ring gas can uniformly and smoothly form a rotationally flowing diffusion gas supply gas flow outwards, and the gas is supplied upwards through the outer ring nozzle, so that the gas mixing rate is effectively improved; and the burner is pressed on the gas supply seat in a press fit and close fit manner to form an integrated burner structure, so that the overall weight of the burner can be effectively reduced, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of burners, in particular to a low-cost multi-channel single-dividing flow rotary multi-head burner. Background Art

[0002] A multi-head burner is also called a star-shaped burner. It consists of a central nozzle and several outer ring nozzles. It is one of the more commonly used burner structures. Existing multi-head burners are generally provided with two structures. One is an annular tubular stove base, matched with an upward extending stove head outlet pipe and a fire cover. The overall structure is simple, but the gas mixing is uneven, such as the multi-head burner with upper air inlet provided by patent number CN201520620501.X; the other is an annular disc-shaped stove base, with a gas mixing chamber provided in the stove base, and several gas outlets opened on the top, matched with a fire cover. The overall structure is relatively complex, providing an annular gas mixing chamber, which can improve the efficiency of gas mixing, such as the multi-head stainless steel burner provided by patent number CN202021383139.6.

[0003] However, the nozzle arrangement and gas mixture of the above two multi-head burners are relatively simple, the flame combustion coverage is uneven, the gas mixing rate still needs to be improved, and the nozzles are usually made of copper, which is heavy and expensive. Utility Model Content

[0004] 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 low-cost multi-channel single-split swirl multi-head burner.

[0005] The technical solution adopted by an embodiment of the utility model to solve the technical problem is: a low-cost multi-channel single-dividing swirl multi-head burner, comprising: a gas distributor, a central nozzle and an outer ring nozzle;

[0006] The air distribution seat is provided with a central air supply cavity and an outer ring air supply cavity; the outer ring air supply cavity is arranged around the outer periphery of the central air supply cavity; a central air supply seat is provided above the central air supply cavity;

[0007] The outer circumference of the outer ring air supply cavity is provided with a plurality of outer ring air supply channels, the outer ring air supply channels including a first air supply section and a second air supply section; the second air supply section spacer rings of the plurality of outer ring air supply channels are provided on the outer circumference of the outer ring air supply cavity; the first air supply section extends outward from the outer ring air supply cavity and is connected to the end of the second air supply section in an arc-shaped transition;

[0008] The outer ring air supply channel is provided with a plurality of outer ring air supply seats at intervals; the central nozzle and the outer ring nozzle are cap-shaped structures made of metal sheets, which can be tightly fitted and fixed to the central air supply seat and the outer ring air supply seat respectively.

[0009] Optionally, the first air supply section and the second air supply section are arranged in an “L”-shaped structure.

[0010] Optionally, several outer ring air supply channels are uniformly arranged along the circumferential direction on the outside of the outer ring air supply cavity; and the second air supply sections of several of the outer ring air supply channels are connected to the same side of the first air supply section and extend in the same rotation direction.

[0011] Optionally, four outer ring air supply channels are provided.

[0012] Optionally, a single outer ring air supply channel is provided with two outer ring nozzles; one outer ring nozzle is provided at the arc-shaped transition connection between the first air supply section and the second air supply section, and the other outer ring nozzle is provided at the end of the second air supply section.

[0013] Optionally, the first air supply section is arranged to be inclined upward toward one end of the second air supply section.

[0014] Optionally, the bottom plate wall of the first air supply section and the bottom plate wall of the second air supply section are connected bottom shell wall structures; the bottom shell wall is arranged to be inclined upward toward one side of the second air supply section.

[0015] Optionally, the central nozzle and the outer ring nozzle are made of stainless steel sheet metal.

[0016] Optionally, the plate thickness of the central nozzle and the outer ring nozzle is in the range of 0.4 mm to 0.8 mm.

[0017] The beneficial effects of the present invention are as follows: the gas distributor is installed at the gas outlet of the burner head, and part of the gas from the burner head is sent to the central gas supply cavity, and the other part is sent to the outer ring gas supply cavity; the outer ring gas forms a mixed effect in the outer ring gas supply cavity, and then is sent outward to the outer ring gas supply distributor through the outer ring gas supply channel on the periphery, and then is sent to the outer ring nozzle; wherein, the first gas supply section extends outward from the outer ring gas supply cavity, and is connected to the end of the second gas supply section in an arc-shaped transition, the outer ring gas can form a rotating flow of diffused gas supply airflow outward evenly and smoothly, and is supplied upward through the outer ring nozzle, effectively improving the gas mixing rate. In addition, the central nozzle and the outer ring nozzle are cap-shaped structures made of flat metal sheets, which are pressed onto the gas supply holder by pressing and fitting to form an integrated burner structure, which can effectively reduce the overall weight of the burner and reduce production costs.

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 This is a structural diagram of a single-dividing swirl-type multi-head burner of the utility model;

[0021] Figure 2 for Figure 1 Cross-sectional view of a single-dividing swirl multi-head burner.

[0022] Description of main component symbols:

[0023] 10. Gas distribution seat; 11. Central gas supply seat; 12. Outer ring gas supply seat; 13. Bottom shell wall; 20. Central nozzle; 30. Outer ring nozzle; 40. Central gas supply cavity; 50. Outer ring gas supply cavity; 60. Outer ring gas supply channel; 61. First gas supply section; 62. Second gas supply section. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0025] In the description of this utility model, "above," "below," and "within" are understood to be exclusive of the number indicated, while "above," "below," and "within" are understood to be inclusive of the number indicated. The use of "first" and "second" is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, or implicitly specifying the number or order of the indicated technical features.

[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., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They 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. Therefore, they cannot be understood as limitations on the present invention.

[0027] In this utility model, unless otherwise expressly defined, terms such as "disposed," "installed," and "connected" should be interpreted broadly. For example, they may refer to direct connection or indirect connection through an intermediate medium; fixed connection or detachable connection or integral molding; mechanical connection; internal communication between two components or interaction between two components. Those skilled in the art can reasonably determine the specific meanings of these terms in this utility model based on the specific content of the technical solution.

[0028] Example

[0029] Reference Figure 1 and Figure 2 The utility model proposes a low-cost multi-channel single-dividing swirl multi-head burner, comprising: a gas distributor 10, a central nozzle 20 and an outer ring nozzle 30;

[0030] The air distribution seat 10 is provided with a central air supply cavity 40 and an outer ring air supply cavity 50; the outer ring air supply cavity 50 is arranged around the outer periphery of the central air supply cavity 40; the central air supply seat 11 is provided above the central air supply cavity 40;

[0031] The outer ring air supply cavity 50 is provided with a plurality of outer ring air supply channels 60, each of which includes a first air supply section 61 and a second air supply section 62. The second air supply sections 62 of the plurality of outer ring air supply channels 60 are arranged at intervals around the outer ring air supply cavity 50. The first air supply section 61 extends outward from the outer ring air supply cavity 50 and transitions to the end of the second air supply section 62 in an arc shape.

[0032] The outer ring air supply channel 60 is provided with a plurality of outer ring air supply seats 12 at intervals; the central nozzle 20 and the outer ring nozzle 30 are cap-shaped structures made of metal sheets, which can be tightly fitted and fixed to the central air supply seat 11 and the outer ring air supply seat 12 respectively.

[0033] In the present invention, the gas distributor 10 is installed at the gas outlet of the burner head. A portion of the gas from the burner head is sent to the central gas supply cavity 40, and the other portion is sent to the outer ring gas supply cavity 50. The outer ring gas forms a mixed effect in the outer ring gas supply cavity 50, and is then sent outward to the outer ring gas supply seat 12 through the outer ring gas supply channel 60 on the periphery, and then sent to the outer ring nozzle 30. Among them, the first gas supply section 61 extends outward from the outer ring gas supply cavity 50 and is connected to the end of the second gas supply section 62 in an arc-shaped transition. The outer ring gas can form a rotating and diffused gas supply airflow outward evenly and smoothly, and is supplied upward through the outer ring nozzle 30, effectively improving the gas mixing rate. In addition, the central nozzle 20 and the outer ring nozzle 30 are cap-shaped structures made of flat metal sheets. They are pressed onto the gas supply seat by pressing and fitting to form an integrated burner structure, which can effectively reduce the overall weight of the burner and reduce production costs.

[0034] In this embodiment, the first air supply section 61 and the second air supply section 62 are arranged in an L-shaped structure. The corner transition of the L-shaped structure is arranged in an arc shape to make the air flow more smoothly toward the end of the outer ring air supply channel 60.

[0035] Four outer ring air supply channels, each with two outer ring nozzles, can form the combustion effect of a 9-head multi-head burner.

[0036] Specifically, several outer ring air supply channels 60 are evenly distributed along the circumference outside the outer ring air supply cavity 50. The second air supply sections 62 of several outer ring air supply channels 60 are connected to the same side of the first air supply section 61 and extend in the same rotational direction. The multiple outer ring air supply channels 60 are evenly spaced and extend in the same rotational direction in an "L"-shaped" arrangement, creating a simple and aesthetically pleasing rotating flower-like structure. Furthermore, the outer ring gas flows in a uniform, single-channel, circumferential flow, ensuring stable and uniform air supply to each outer ring nozzle 30.

[0037] In this embodiment, four outer ring air supply channels 60 are provided.

[0038] Specifically, a single outer ring air supply channel 60 is provided with two outer ring nozzles 30; one outer ring nozzle 30 is provided at the arc-shaped transition connection between the first air supply section 61 and the second air supply section 62, and the other outer ring nozzle 30 is provided at the end of the second air supply section 62.

[0039] In this embodiment, the first gas supply section 61 is tilted upward toward one end of the second gas supply section 62. The tilted first gas supply section 61 allows gas to flow in the direction of the upward flow of the burner gas, tilted beyond the outer second gas supply section 62. This results in smoother gas flow and less chance of local turbulence. This ensures a stable gas output from the outer ring nozzle 30 and a stable flame combustion.

[0040] Furthermore, the bottom wall of the first gas supply section 61 and the bottom wall of the second gas supply section 62 form a connected bottom shell wall 13 structure; the bottom shell wall 13 is tilted upward toward the side of the second gas supply section 62. The continuous bottom shell wall 13 structure facilitates the upward tilted gas supply of the outer ring gas supply channel 60 and also facilitates mold casting.

[0041] In this embodiment, the central nozzle 20 and the outer ring nozzle 30 are made of stainless steel sheet metal. The nozzle structure made of flat stainless steel sheet metal has strong corrosion resistance, low weight, and is easy to be pressed and fixed to the fixing seat.

[0042] Preferably, the thickness of the central nozzle 20 and the outer ring nozzle 30 is in the range of 0.4 mm to 0.8 mm, for example, the thickness is 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm or 0.8 mm.

[0043] Of course, the present invention is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications and substitutions are all included in the scope defined by the claims of this application.

Claims

1. A low-cost multi-channel single-dividing swirl type multi-head burner, characterized in that: include: An air distributor (10), a central nozzle (20) and an outer ring nozzle (30); The gas distribution seat (10) is provided with a central gas supply cavity (40) and an outer ring gas supply cavity (50); the outer ring gas supply cavity (50) is arranged around the outer periphery of the central gas supply cavity (40); a central gas supply seat (11) is arranged above the central gas supply cavity (40); The outer circumference of the outer ring air supply cavity (50) is provided with a plurality of outer ring air supply channels (60), and the outer ring air supply channels (60) include a first air supply section (61) and a second air supply section (62); the second air supply sections (62) of the plurality of outer ring air supply channels (60) are arranged at intervals on the outer circumference of the outer ring air supply cavity (50); the first air supply section (61) extends outward from the outer ring air supply cavity (50) and is connected to the end of the second air supply section (62) in an arc-shaped transition; The outer ring air supply channel (60) is provided with a plurality of outer ring air supply seats (12) at intervals; the central nozzle (20) and the outer ring nozzle (30) are cap-shaped structures formed by metal sheets and can be respectively tightly fitted and fixed to the central air supply seat (11) and the outer ring air supply seat (12).

2. The low-cost multi-channel single-dividing swirl type multi-head burner according to claim 1 is characterized in that: The first air supply section (61) and the second air supply section (62) are arranged in an "L"-shaped structure.

3. The low-cost multi-channel single-dividing swirl type multi-head burner according to claim 2 is characterized in that: A plurality of outer ring air supply channels (60) are uniformly arranged along the circumferential direction on the outside of the outer ring air supply cavity (50); and the second air supply sections (62) of the plurality of outer ring air supply channels (60) are connected to the same side of the first air supply section (61) and extend in the same rotation direction.

4. The low-cost multi-channel single-dividing swirl type multi-head burner according to claim 3 is characterized in that: Four outer ring air supply channels (60) are provided.

5. The low-cost multi-channel single-dividing swirl type multi-head burner according to claim 2 is characterized in that: The single outer ring air supply channel (60) is provided with two outer ring nozzles (30); one outer ring nozzle (30) is arranged at the arc-shaped transition connection between the first air supply section (61) and the second air supply section (62), and the other outer ring nozzle (30) is arranged at the end of the second air supply section (62).

6. The low-cost multi-channel single-dividing swirl type multi-head burner according to claim 1 is characterized in that: The first air supply section (61) is arranged to be inclined upwards at one end toward the second air supply section (62).

7. The low-cost multi-channel single-dividing swirl type multi-head burner according to claim 6 is characterized in that: The bottom plate wall of the first air supply section (61) and the bottom plate wall of the second air supply section (62) are connected to each other as a bottom shell wall (13); the bottom shell wall (13) is arranged to be inclined upwards toward one side of the second air supply section (62).

8. The low-cost multi-channel single-dividing swirl type multi-head burner according to claim 1 is characterized in that: The central nozzle (20) and the outer ring nozzle (30) are made of stainless steel sheet metal.

9. The low-cost multi-channel single-dividing swirl type multi-head burner according to claim 1 is characterized in that: The plate thickness of the central nozzle (20) and the outer ring nozzle (30) ranges from 0.4 mm to 0.8 mm.

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