Multi-nozzle atomization fuel oil low-nitrogen burner

Abstract

The utility model discloses a multi-nozzle atomizing fuel oil low-nitrogen burner which comprises a burner structure, a nozzle atomizing structure is arranged in the burner structure, the burner structure comprises a burner body serving as a foundation, a fuel oil pipe is installed in the burner body, an atomizing gas pipe is installed at one end of the fuel oil pipe in an embedded mode, and the atomizing gas pipe is connected with the nozzle atomizing structure. The fuel pipe and the atomization gas pipe are each wrapped with a first annular heater, a first temperature sensing module for detecting the temperature is arranged on each first annular heater, a cavity conveying disc is installed at one end of the fuel pipe in an embedded mode, a conveying pipe is installed on the surface of the cavity conveying disc in an embedded mode, and meanwhile a second temperature sensing module is installed on the surface of the conveying pipe; a second annular heater is arranged in the combustor body, the second annular heater and the first annular heater are both electrically connected, and according to the multi-nozzle atomization fuel oil low-nitrogen combustor, atomization conveying is achieved through the arranged atomization gas pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel oil low-nitrogen burners, in particular to a fuel oil low-nitrogen burner with multi-nozzle atomization. Background Art

[0002] Diesel burners generally use compressed air to spray oil with a certain pressure into the furnace for atomized combustion. Due to equipment cost and valve control reasons, one burner is usually equipped with one fuel spray gun, so that the oil mist will be concentrated in front of the nozzle. Although the combustion speed is very fast, the atomization effect of the sprayed fuel is not good, resulting in an uneven atmosphere for fuel combustion. Utility Model Content

[0003] The purpose of the utility model is to provide a multi-nozzle atomizing fuel low-nitrogen burner to address the shortcomings of the prior art, so as to solve the problem proposed in the above background technology that the oil mist passing through will be concentrated in front of the nozzle. Although the combustion speed is very fast, the atomization effect of the sprayed fuel is not good, resulting in an uneven atmosphere for fuel combustion.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-nozzle atomizing fuel low-nitrogen burner, comprising a burner structure, wherein a nozzle atomizing structure is provided inside the burner structure;

[0005] The burner structure includes a burner body as a basis, and a fuel pipe is installed inside the burner body, and an atomizing gas pipe is embedded and installed at one end of the fuel pipe;

[0006] The fuel pipe and the atomizing gas pipe are both wrapped with a first annular heater, and the first annular heater is provided with a first temperature sensing module for temperature detection.

[0007] By adopting the above technical solution, atomization transportation is achieved through the provided atomization air pipe.

[0008] Preferably, a cavity delivery disc is embedded in one end of the fuel pipe, and a delivery pipe is embedded in the surface of the cavity delivery disc, and a second temperature sensing module is installed on the surface of the delivery pipe.

[0009] By adopting the above technical solution, the temperature detection is performed by setting up the second temperature sensing module.

[0010] Preferably, a second annular heater is provided inside the burner body, and the second annular heater and the first annular heater are both electrically connected.

[0011] By adopting the above technical solution, the second annular heater is provided to achieve annular heating.

[0012] Preferably, the nozzle atomization structure includes a cavity ring with a hollow structure inside, and a first atomization nozzle is embedded and installed on the cavity ring, and the first atomization nozzle is matched and installed with a delivery pipe.

[0013] By adopting the above technical solution, the cavity ring is provided to achieve an annular matching installation connection.

[0014] Preferably, a T-shaped cavity disk is fixed inside the cavity ring, and a second atomizing nozzle is inlaid and installed on the T-shaped cavity disk, and the second atomizing nozzle is inlaid and installed connected to the T-shaped cavity disk through a connecting pipe.

[0015] By adopting the above technical solution, the connecting pipe is provided to connect the atomization delivery.

[0016] Preferably, the T-shaped cavity disk and the cavity conveying disk are connected by inlaying and conveying, and the connection shape of the T-shaped cavity disk and the cavity conveying disk is arranged in an "I" shape.

[0017] By adopting the above technical solution, the T-shaped cavity disc is provided to achieve inlay installation and conveying connection.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the multi-nozzle atomizing fuel low-nitrogen burner,

[0019] (1) In this case, the nozzle atomization structure is set to solve the problem that the oil mist will be concentrated in front of the nozzle. Although the combustion speed is very fast, the atomization effect of the sprayed fuel is not good, resulting in an uneven fuel atmosphere. When the fuel is transported to the inside of the T-shaped cavity disk and the cavity ring, the fuel is transported to the inside of the second atomization nozzle and the first atomization nozzle through the T-shaped cavity disk and the cavity ring respectively for atomization and injection. When the fuel is injected at multiple angles and directions through the first atomization nozzle and the second atomization nozzle, the atomization injection property and injection dispersion combustion distribution of the diffused fuel are improved;

[0020] (2) By setting up the burner structure, the problem of fuel-type NOx being generated at 600-800°C is solved. General fuel burners cannot avoid this temperature range, so the NOx emission value will be high. When the first annular heater and the second annular heater are in operation, the fuel pipe, the atomizing gas pipe, the cavity conveying plate and the conveying pipe are heated. When the above components are heated, the conveying fuel temperature is increased. When the fuel delivery temperature is increased, the nitrogen-containing organic compounds in the fuel are rapidly cracked and gasified in the burner, and a reduction reaction occurs with other reducing elements in the fuel to generate N2, thereby reducing the generation of NOx. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the burner of the utility model;

[0023] Figure 3 It is a schematic diagram of the structure of the cavity ring, the first atomizing nozzle, the T-shaped cavity disk and the second atomizing nozzle of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of a T-shaped cavity disk of the utility model;

[0025] Figure 5 This is a schematic diagram of the connecting pipe structure of the utility model.

[0026] In the figure: 1. burner structure; 101. burner body; 102. fuel pipe; 103. atomizing gas pipe; 104. first annular heater; 105. first temperature sensing module; 106. cavity conveying disk; 107. conveying pipe; 108. second temperature sensing module; 109. second annular heater; 2. nozzle atomizing structure; 201. cavity ring; 202. first atomizing nozzle; 203. T-shaped cavity disk; 204. second atomizing nozzle; 205. connecting pipe. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-5 The utility model provides a technical solution: a multi-nozzle atomizing fuel low-nitrogen burner, such as Figure 1 and Figure 2 As shown, a burner structure 1 is included. The burner structure 1 includes a burner body 101 as a basis, and a fuel pipe 102 is installed inside the burner body 101. At the same time, an atomizing gas pipe 103 is embedded and installed at one end of the fuel pipe 102.

[0029] Furthermore, in the above scheme, the fuel pipe 102 and the atomizing gas pipe 103 are both wrapped with a first annular heater 104, and the first annular heater 104 is provided with a first temperature sensing module 105 for temperature detection, wherein the first temperature sensing module 105 and the first annular heater 104 are used to heat the fuel and atomizing gas in the fuel pipe 102 and the atomizing gas pipe 103, and the heating of the fuel and the atomizing gas is used to increase the atomization effect during fuel transportation.

[0030] In the above solution, a cavity delivery plate 106 is embedded and installed at one end of the fuel pipe 102, and a delivery pipe 107 is embedded and installed on the surface of the cavity delivery plate 106, and a second temperature sensing module 108 is installed on the surface of the delivery pipe 107.

[0031] Furthermore, in the above scheme, a second annular heater 109 is provided inside the burner body 101, and the second annular heater 109 and the first annular heater 104 are electrically connected, wherein the second annular heater 109 and the second temperature sensing module 108 are used to reheat the transported fuel to reduce NOx generated during the combustion process.

[0032] like Figure 3 , Figure 4 and Figure 5 As shown, a nozzle atomizing structure 2 is provided inside the burner structure 1, and the nozzle atomizing structure 2 includes a cavity ring 201 with a hollow structure inside, and a first atomizing nozzle 202 is embedded and installed on the cavity ring 201, and the first atomizing nozzle 202 is installed and connected with the delivery pipe 107. The cavity ring 201 and the delivery pipe 107 are both made of high thermal conductivity materials, and the high thermal conductivity materials are used to effectively achieve efficient heat absorption and heating transfer effect when the above two are installed.

[0033] In the above scheme, a T-shaped cavity disk 203 is fixed inside the cavity ring 201 , and a second atomizing nozzle 204 is inlaid and installed on the T-shaped cavity disk 203 . Meanwhile, the second atomizing nozzle 204 is inlaid and connected to the T-shaped cavity disk 203 through a connecting pipe 205 .

[0034] Furthermore, in the above scheme, the T-shaped cavity plate 203 is connected to the cavity conveying plate 106 for inlay conveying, and the connection shape of the T-shaped cavity plate 203 and the cavity conveying plate 106 is arranged in an "I" shape.

[0035] In the above scheme, the first annular heater 104 and the second annular heater 109 heat the fuel pipe 102, the atomizing gas pipe 103, the cavity delivery plate 106 and the delivery pipe 107 during operation. When the fuel is delivered to the inside of the T-shaped cavity plate 203 and the cavity ring 201, the fuel is respectively delivered to the inside of the second atomizing nozzle 204 and the first atomizing nozzle 202 through the T-shaped cavity plate 203 and the cavity ring 201 for atomization and injection. When the fuel is injected at multiple angles and directions through the first atomizing nozzle 202 and the second atomizing nozzle 204, the atomization injection property and the injection dispersion combustion distribution property of the diffused fuel are improved.

[0036] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the protection content of the present invention.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-nozzle atomizing fuel low-nitrogen burner, comprising a burner structure (1), characterized in that: The burner structure (1) is provided with a nozzle atomization structure (2) inside; The burner structure (1) comprises a burner body (101) as a base, a fuel pipe (102) is installed inside the burner body (101), and an atomizing gas pipe (103) is embedded and installed at one end of the fuel pipe (102); The fuel pipe (102) and the atomizing gas pipe (103) are both wrapped with a first annular heater (104), and the first annular heater (104) is provided with a first temperature sensing module (105) for detecting temperature.

2. A multi-nozzle atomizing fuel low-nitrogen burner according to claim 1, characterized in that: A cavity delivery disk (106) is embedded and installed at one end of the fuel pipe (102), and a delivery pipe (107) is embedded and installed on the surface of the cavity delivery disk (106), and a second temperature sensing module (108) is installed on the surface of the delivery pipe (107).

3. The multi-nozzle atomizing fuel low-nitrogen burner according to claim 1, characterized in that: A second annular heater (109) is provided inside the burner body (101), and the second annular heater (109) and the first annular heater (104) are both electrically connected.

4. The multi-nozzle atomizing fuel low-nitrogen burner according to claim 1, characterized in that: The nozzle atomization structure (2) comprises a cavity ring (201) with a hollow structure inside, and a first atomization nozzle (202) is embedded and installed on the cavity ring (201), and the first atomization nozzle (202) is matched and installed with the delivery pipe (107).

5. The multi-nozzle atomizing fuel low-nitrogen burner according to claim 4, characterized in that: A T-shaped cavity disk (203) is fixed inside the cavity ring (201), and a second atomizing nozzle (204) is inlaid and installed on the T-shaped cavity disk (203). The second atomizing nozzle (204) is inlaid and installed and connected to the T-shaped cavity disk (203) via a connecting pipe (205).

6. A multi-nozzle atomizing fuel low-nitrogen burner according to claim 5, characterized in that: The T-shaped cavity plate (203) and the cavity conveying plate (106) are connected by being embedded and conveyed, and the connection shape of the T-shaped cavity plate (203) and the cavity conveying plate (106) is arranged in the shape of an "I" character.

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