A cyclone burner high mixing ratio combustion head

Abstract

This utility model relates to the field of burner technology and discloses a high-mixing-ratio burner head for a swirling burner. It includes a burner head body with two injection channels. A swirler is fitted into the lower part of the inner cavity of each injection channel. A main air supply channel is located in the lower inner cavity of the burner head body. An air inlet communicating with the main air supply channel is located at the bottom of the burner head body. Air inlet channels are located on both sides of the main air supply channel. An air distribution plate is fixedly connected to the lower inner wall of the air inlet channel. Air distribution holes are evenly distributed on the air distribution plate around the axis of the air inlet channel. Compared to the prior art, this utility model uses a separate channel to supply air to the injection channels, allowing air to be evenly delivered into each injection channel. This ensures a uniform air intake for each injection channel, avoiding uneven air distribution that could lead to different combustion effects in different injection channels. Furthermore, the air distribution plate allows air to rise evenly and flow to all parts of the swirler, thereby improving the uniformity of air swirling and enhancing the mixing effect.

Description

Technical Field

[0001] This utility model belongs to the field of combustion head technology, specifically a high mixing ratio combustion head for a swirl burner. Background Technology

[0002] Gas water heaters generally consist of a burner and a heat exchanger. The burner heats the heat exchanger. Cold water flows through the heat exchanger and is heated into hot water by the burner. Existing burners are generally configured as a fire bar. That is, the burner has multiple burners arranged in a straight line, forming a row. The flames emitted by the burners are generally vertically upward, thus heating the heat exchanger above them.

[0003] A search revealed a swirl-type burner, burner, and gas water heater as disclosed in announcement number CN219222867U, comprising a burner body, a gas nozzle, a swirler, and a convergence / divergence structure. The burner body defines an injection channel; the top of the gas nozzle is located within the injection channel, and the gas nozzle is used to receive gas; the swirler is installed within the injection channel, and the swirler is used to receive air and cause the air flowing through it to form a swirling flow.

[0004] In actual use, the applicant found that the air in the aforementioned burner head enters the body of the burner head through the air inlet and then directly enters the cyclone separator from the internal cavity of the burner head body. The air is not directly delivered to the cyclone separator, resulting in severe aerodynamic losses, which affects the initial velocity entering the cyclone separator. At the same time, it is impossible to distribute the air evenly to all parts of the cyclone separator, thus affecting the swirling mixing effect and easily leading to inconsistent combustion effects among different burner heads. In order to solve the above-mentioned problems, a high mixing ratio burner head for cyclone burners is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a high mixing ratio combustion head for a swirl burner in order to solve the problems mentioned above.

[0006] The technical solution adopted by this utility model is as follows: A high mixing ratio burner head for a swirl burner includes a burner head body, two injection channels are provided on the burner head body, a swirl generator is installed in the lower part of the inner cavity of the injection channel, a main air supply channel is provided in the lower inner cavity of the burner head body, an air inlet communicating with the main air supply channel is opened at the bottom of the burner head body, air inlet channels are provided on both sides of the main air supply channel, the air outlet of the air inlet channel is connected to the injection channel, an air distribution plate is fixedly connected to the lower inner wall of the air inlet channel, and air distribution holes are evenly opened on the air distribution plate around the axis of the air inlet channel.

[0007] In a preferred embodiment, a gas nozzle connected to the burner body is provided in the main gas supply channel, the upper part of the gas nozzle extends into the injection channel, and the gas nozzle penetrates the air distribution plate.

[0008] In a preferred embodiment, the top of the gas nozzle is a conical structure, and multiple oblique holes are equally spaced around the axis of the gas nozzle on the conical surface.

[0009] In a preferred embodiment, the cyclone separator includes an outer ring and an inner ring, the inner ring being disposed within the outer ring, the outer ring being inserted into the injection channel, the inner ring being disposed within the outer ring, the gas nozzle penetrating the inner ring, the inner wall of the inner ring abutting against the outer wall of the gas nozzle, and a plurality of helical blades being fixedly connected at equal intervals between the inner ring and the outer ring around the axis of the cyclone separator.

[0010] In a preferred embodiment, an annular contraction and expansion member is fixedly connected to the upper inner wall of the injection channel. The end of the contraction and expansion member near the gas nozzle is provided with a conical surface for narrowing, and the end of the contraction and expansion member away from the gas nozzle is provided with a conical surface for widening.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0012] 1. In this utility model, air enters the main air supply channel inside the burner head body through the air inlet. The main air supply channel guides the air into the air intake channel. Then, the air passes through the air distribution holes of the air distribution plate to make the airflow evenly distributed. Then, the air intake channel guides the air into the swirler in the injection channel. The swirler makes the air swirl, thereby making the air and fuel gas fully mixed and burned. Compared with the prior art, the entire air supply structure uses a separate channel to supply air to the injection channel. The air can be evenly delivered into the injection channel, so that the air intake of each injection channel is uniform, avoiding uneven air distribution that leads to different combustion effects in different injection channels. Moreover, the air distribution plate can make the air rise evenly and flow to all parts of the swirler, thereby improving the uniformity of air swirling and improving the mixing effect. Attached Figure Description

[0013] Figure 1 This is a simplified structural diagram of the present invention;

[0014] Figure 2 This is a simplified three-dimensional structural diagram of the hydrocyclone in this utility model.

[0015] The markings in the diagram are: 1-burner head body, 2-injection channel, 3-swirler, 4-main gas supply channel, 5-air inlet, 6-air inlet channel, 7-gas nozzle, 8-oblique hole, 9-outer ring, 10-inner ring, 11-spiral blade, 12-expansion and contraction component, 13-contraction cone surface, 14-expansion cone surface, 15-air distribution plate, 16-air distribution hole. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] The following will combine Figures 1-2 A detailed description is provided of a high-mixing-ratio burner head for a swirl burner according to an embodiment of this utility model.

[0018] Example:

[0019] This utility model provides a high-mixing-ratio burner head for a swirl burner, referenced... Figures 1 to 2 As shown, the device includes a burner head body 1, which has two injection channels 2. A cyclone separator 3 is fitted into the lower part of the inner cavity of each injection channel 2. A main air supply channel 4 is located in the lower inner cavity of the burner head body 1. An air inlet 5 communicating with the main air supply channel 4 is located at the bottom of the burner head body 1. Air inlet channels 6 are located on both sides of the main air supply channel 4. The outlet of the air inlet channel 6 is connected to the injection channel 2. A distribution plate 15 is fixedly connected to the lower inner wall of the air inlet channel 6. Air distribution holes 16 are evenly distributed on the distribution plate 15 around the axis of the air inlet channel 6. In this structure, air enters the main air supply channel 4 inside the burner head body 1 through the air inlet 5. The main air supply channel 4 distributes the air... Air is introduced into the intake channel 6, and then the air flows evenly through the air distribution holes 16 of the air distribution plate 15. The intake channel 6 then guides the air into the swirler 3 in the injection channel 2. The swirler 3 causes the air to swirl, thereby ensuring that the air and fuel are fully mixed and combusted. Compared with the comparative document, the entire air supply structure uses a separate channel to supply air to the injection channel 2. The air can be evenly delivered into the injection channel 2, thereby ensuring that the air intake of each injection channel 2 is uniform and avoiding uneven air distribution that leads to different combustion effects in different injection channels 2. Furthermore, the air distribution plate 15 can make the air rise evenly and flow to the swirler 3, thereby improving the uniformity of air swirl and improving the mixing effect.

[0020] refer to Figures 1 to 2As shown, a gas nozzle 7 connected to the burner head body 1 is installed in the main gas supply channel 4. The upper part of the gas nozzle 7 extends into the injection channel 2 and the gas nozzle 7 penetrates the air distribution plate 15. In this structure, the gas nozzle 7 is used to transport gas into the injection channel 2.

[0021] refer to Figures 1 to 2 As shown, the top of the gas nozzle 7 is a conical structure, and multiple oblique holes 8 are equally spaced around the axis of the gas nozzle 7 on the conical surface. In this structure, the gas is directly injected into the swirling air through the oblique holes 8.

[0022] refer to Figures 1 to 2 As shown, the cyclone separator 3 includes an outer ring 9 and an inner ring 10. The inner ring 10 is disposed inside the outer ring 9. The outer ring 9 is inserted into the injection channel 2. The inner ring 10 is disposed inside the outer ring 9. The gas nozzle 7 passes through the inner ring 10. The inner wall of the inner ring 10 abuts against the outer wall of the gas nozzle 7. Multiple spiral blades 11 are fixedly connected at equal intervals between the inner ring 10 and the outer ring 9 around the axis of the cyclone separator 3. The above structure constitutes the cyclone separator 3 mechanism, which uses the spiral blades 11 to make the air swirl.

[0023] refer to Figures 1 to 2 As shown, an annular expansion member 12 is fixedly connected to the upper inner wall of the injection channel 2. The expansion member 12 has a concave cone surface 13 at one end near the gas nozzle 7 and a flaring cone surface 14 at the other end away from the gas nozzle 7. This structure uses the expansion member 12 to prevent backfire, and the ejected gas can collide and disperse with the expansion member 12, which is conducive to the full mixing of gas and air.

[0024] The implementation principle of a high-mixing-ratio burner head of a swirl burner according to an embodiment of this application is as follows: In use, air enters the main air supply channel 4 inside the burner head body 1 through the air inlet 5. The main air supply channel 4 guides the air into the air intake channel 6. Then, the air passes through the air distribution holes 16 of the air distribution plate 15 to make the airflow evenly distributed. Then, the air intake channel 6 guides the air into the swirler 3 in the injection channel 2. The swirler 3 makes the air form a swirling flow, thereby making the air and the fuel gas fully mixed and burned. Compared with the prior art, the entire air supply structure uses a separate channel to supply air to the injection channel 2. The air can be evenly delivered into the injection channel 2, so that the air intake of each injection channel 2 is uniform, avoiding uneven air distribution that leads to different combustion effects in different injection channels 2. In addition, the air distribution plate 15 can make the air rise evenly to the swirler 3, thereby improving the uniformity of air swirling and improving the mixing effect.

[0025] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A high-swept ratio combustor bucket, comprising a bucket body (1), characterized in that: The burner head body (1) is provided with two injection channels (2). A cyclone separator (3) is installed in the lower part of the inner cavity of the injection channel (2). The lower inner cavity of the burner head body (1) is provided with a main air supply channel (4). An air inlet (5) communicating with the main air supply channel (4) is opened at the bottom of the burner head body (1). Air inlet channels (6) are provided on both sides of the main air supply channel (4). The air outlet of the air inlet channel (6) is connected to the injection channel (2). An air distribution plate (15) is fixedly connected to the lower inner wall of the air inlet channel (6). Air distribution holes (16) are evenly opened on the air distribution plate (15) around the axis of the air inlet channel (6).

2. A high turbulence ratio burner head of the cyclone burner type as claimed in claim 1, characterized in that: The main gas supply channel (4) is provided with a gas nozzle (7) connected to the burner head body (1). The upper part of the gas nozzle (7) extends into the injection channel (2) and the gas nozzle (7) penetrates the air distribution plate (15).

3. The high-mixing-ratio burner head of a swirl burner as described in claim 2, characterized in that: The top of the gas nozzle (7) is a conical structure, and multiple oblique holes (8) are equally spaced around the axis of the gas nozzle (7) on the conical surface.

4. A high-mixing-ratio burner head for a swirl burner as described in claim 2, characterized in that: The cyclone separator (3) includes an outer ring (9) and an inner ring (10). The outer ring (9) is inserted into the injection channel (2). The inner ring (10) is disposed inside the outer ring (9). The gas nozzle (7) passes through the inner ring (10). The outer wall of the outer ring (9) abuts against the inner wall of the injection channel (2). The inner wall of the inner ring (10) abuts against the outer wall of the gas nozzle (7). Multiple spiral blades (11) are fixedly connected at equal intervals around the axis of the cyclone separator (3) between the inner ring (10) and the outer ring (9).

5. A high-mixing-ratio burner head for a swirl burner as described in claim 2, characterized in that: An annular contraction and expansion member (12) is fixedly connected to the upper inner wall of the injection channel (2). The contraction and expansion member (12) has a concave cone surface (13) at one end near the gas nozzle (7) and a flaring cone surface (14) at the other end away from the gas nozzle (7).

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