Gas burner rotational flow disc with independent ignition cavity and UV flame monitoring hole

Abstract

The utility model relates to the technical field of industrial furnace gas burners, in particular to a gas burner rotational flow disc with an independent ignition cavity and an ultraviolet (UV) flame monitoring hole. Comprising an air-fuel gas mixed flow disc with a specific shape and an open pore structure, a fuel gas pipe, an independent ignition cavity, a UV flame monitoring hole, a cooling hole selectively formed in the bottom of the independent ignition cavity, a fuel gas pipe, a flexible corrugated pipe and a mounting flange. According to the utility model, by arranging the air-fuel gas mixed flow disc with a specific shape and an open pore structure, during use, fuel gas enters from the fuel gas pipe, and most of the fuel gas flows out through the open pores with specific pore diameters and angles on the air-fuel gas mixed flow disc and enters a combustion chamber at the front end of the silicon carbide ceramic burner pipe; a small part of fuel gas flows into the independent ignition cavity through a small hole with a specific hole diameter at the joint of the air-fuel gas mixed flow disc and the independent ignition cavity, and combustion-supporting air enters from an interlayer between the silicon carbide ceramic burner pipe and the fuel gas pipe.

Description

Technical Field

[0001] This utility model relates to the field of industrial furnace gas burner technology, and in particular to a gas burner swirl plate with an independent ignition chamber and a UV ultraviolet flame monitoring hole. Background Technology

[0002] Industrial furnaces are thermal equipment used in industrial production to heat materials or workpieces using heat generated from fuel combustion or electrical energy conversion. Our discussion of furnaces is limited to those heated by fuel combustion, primarily those heated by natural gas.

[0003] Currently, common industrial furnace gas burners typically ignite within the combustion chamber, such as... Figure 1 As shown, this ignition method has poor stability and low ignition success rate. Especially when the furnace temperature of industrial furnaces is low (below 300℃), the low ignition success rate and frequent re-ignition lead to a large accumulation of gas in the combustion chamber, which can easily cause deflagration or even explosion. In addition, there is no independent UV ultraviolet flame monitoring hole on the air-gas mixing plate, so the effect of equipping a UV ultraviolet flame monitor for flame monitoring is not ideal. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a gas burner swirl plate with an independent ignition chamber and a UV ultraviolet flame monitoring port. This solves the technical problems of low ignition success rate, frequent re-ignition leading to a large accumulation of gas in the combustion chamber, which can easily cause deflagration or even barrel explosion, and unsatisfactory flame monitoring effect when equipped with a UV ultraviolet flame monitor.

[0005] To solve the above technical problems, the utility model discloses the following technical scheme: specific shape and open hole structure's air -fuel gas mixed flow disc, gas pipe, independent ignition chamber, UV ultraviolet flame monitoring hole, cooling hole that the independent ignition chamber bottom selects and sets, the heat -resisting steel baffle that the independent ignition chamber side surface selects and welds, gas pipe and flexible bellows and mounting flange, air -fuel gas mixed flow disc and gas pipe are connected through welding, the independent ignition chamber sets up on the one side outer wall of air -fuel gas mixed flow disc, the UV ultraviolet flame monitoring hole is set up in the inside of air -fuel gas mixed flow disc, the one side wall of independent ignition chamber selects and has cooling hole, the heat -resisting steel baffle that the independent ignition chamber side surface selects and welds, the one side of gas pipe and air -fuel gas mixed flow disc communicates, and gas -tight welding, the other end of gas pipe and flexible bellows gas -tight connection, and both communicate, the other end of flexible bellows and mounting flange gas -tight connection, and both communicate, the outer wall of air -fuel gas mixed flow disc has opening three, the inside of independent ignition chamber is provided with combustion chamber, air -fuel gas mixed flow disc, independent ignition chamber and UV ultraviolet flame monitoring hole are integrally casted into shape, the outer wall of air -fuel gas mixed flow disc has opening three, the inside of independent ignition chamber is provided with combustion chamber, air -fuel gas mixed flow disc, independent ignition chamber and UV ultraviolet flame monitoring hole are integrally casted into shape, the outer wall of air -fuel gas mixed flow disc is special high -temperature alloy material, the independent ignition chamber and air -fuel gas mixed flow disc have small hole communication, the outer wall of the axial one side of independent ignition chamber has opening two.

[0006] Further, one end of the air -fuel gas mixed flow disc and the gas pipe are connected by gas -tight welding.

[0007] Further, the UV ultraviolet flame monitoring hole is used with the UV ultraviolet flame monitor installed on the burner shell, the flame in the combustion chamber is easily monitored by the UV ultraviolet flame monitor through the UV ultraviolet flame monitoring hole, and the burner electrode is limitingly inserted into the inside of the independent ignition chamber.

[0008] Further, the outer wall of the air -fuel gas mixed flow disc away from the gas pipe has a slotted opening one with a specific angle and a specific aperture, and the slotted opening one is provided with multiple groups, the slotted opening one is evenly arrayed in a circumferential shape with the air -fuel gas mixed flow disc horizontal center line as the center, and the slotted opening one is spaced apart.

[0009] The utility model has the advantages of:

[0010] By setting the air-fuel gas mixing disc with specific shape and opening structure, when in use, the gas enters from the gas pipe, most of the gas flows out through the opening with specific aperture and angle on the air-fuel gas mixing disc, enters the combustion chamber at the front end of the silicon carbide ceramic burner pipe, a small part of the gas flows into the independent ignition cavity through the small hole with specific aperture at the joint of the air-fuel gas mixing disc and the independent ignition cavity, the combustion air enters from the interlayer between the silicon carbide ceramic burner pipe and the gas pipe, most of the combustion air flows out through the slot and opening with specific size and angle on the air-fuel gas mixing disc, enters the combustion chamber at the front end of the silicon carbide ceramic burner pipe, a small part of the combustion air enters the independent ignition cavity through the gap between the opening with specific aperture on the independent ignition cavity and the electrode insulation sleeve, mixes with a small part of the gas entering the independent ignition cavity, a plurality of cooling holes with specific size can be opened at the bottom of the independent ignition cavity according to the requirement, which is used for reducing the flame temperature and protecting the burner electrode, and a section of flexible bellows is arranged between the gas pipe and the mounting flange for axial compensation during the installation process. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0012] Figure 1 The existing technical structure schematic diagram of the gas burner swirler disc with independent ignition cavity and UV ultraviolet flame monitoring hole;

[0013] Figure 2 The three-dimensional structure schematic diagram of the gas burner swirler disc with independent ignition cavity and UV ultraviolet flame monitoring hole;

[0014] Figure 3 The air-fuel gas mixing disc side view schematic diagram of the gas burner swirler disc with independent ignition cavity and UV ultraviolet flame monitoring hole;

[0015] Figure 4 The internal structure installation schematic diagram of the gas burner swirler disc with independent ignition cavity and UV ultraviolet flame monitoring hole;

[0016] Figure 5 The local structure three-dimensional schematic diagram of the gas burner swirler disc with independent ignition cavity and UV ultraviolet flame monitoring hole.

[0017] Identified in the figure: 1, air-fuel gas mixing disc; 2, gas pipe; 3, independent ignition cavity; 4, UV ultraviolet flame monitoring hole; 5, cooling hole; 6, flexible bellows; 7, mounting flange; 8, heat-resistant steel baffle; 9, small hole; 10, slotted; 11, hole one; 12, hole two; 13, hole three; 14, burner electrode; 15, UV ultraviolet flame monitor. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Figures 1-5 The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0019] It should be understood that when used in the specification and the appended claims, the terms "comprise" and "include" indicate the presence of the described features, integers, steps, operations, elements, and / or components, but do not exclude one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0020] It should also be understood that the terms used in this specification of the present application are only for the purpose of describing particular embodiments and are not intended to limit the present application. As used in the specification and the appended claims of the present application, the singular forms "a," "an," and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0021] It should be further understood that the term "and / or" used in the specification and the appended claims of the present application means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0022] Please refer to Figures 1-5The gas burner swirl disc with independent ignition cavity and UV ultraviolet flame monitoring hole is characterized in that: the gas burner swirl disc comprises a special-shaped and open hole structured air-fuel gas mixing disc 1, a gas pipe 2, an independent ignition cavity 3, a UV ultraviolet flame monitoring hole 4, a cooling hole 5 arranged at the bottom of the independent ignition cavity 3, a heat-resistant steel baffle 8 welded at the side of the independent ignition cavity 3, a flexible bellows 6 and a mounting flange 7, the air-fuel gas mixing disc 1 is connected with the gas pipe 2 through welding, the independent ignition cavity 3 is arranged on one side outer wall of the air-fuel gas mixing disc 1, the UV ultraviolet flame monitoring hole 4 is arranged in the air-fuel gas mixing disc 1, the cooling hole 5 is arranged on one side wall of the independent ignition cavity 3, the gas pipe 2 is communicated with one side of the air-fuel gas mixing disc 1 and is tightly welded, the other end of the gas pipe 2 is tightly connected with the flexible bellows 6 and the two are communicated, the other end of the flexible bellows 6 is tightly connected with the mounting flange 7, the outer wall of the air-fuel gas mixing disc 1 is provided with an open hole three 13, the heat-resistant steel baffle 8 is welded on the side of the independent ignition cavity 3, the air-fuel gas mixing disc 1, the independent ignition cavity 3 and the UV ultraviolet flame monitoring hole 4 are integrally cast, the air-fuel gas mixing disc 1 is made of special high-temperature-resistant alloy material, the independent ignition cavity 3 is communicated with the air-fuel gas mixing disc 1 through a small hole 9, and the axial one side outer wall of the independent ignition cavity 3 is provided with an open hole two 12.

[0023] Specifically, by arranging the special-shaped and open hole structured air-fuel gas mixing disc 1, when in use, the gas enters from the gas pipe 2, most of the gas flows out through the open holes with specific aperture and angle on the air-fuel gas mixing disc 1 and enters the combustion chamber 16 at the front end of the silicon carbide ceramic burner pipe, a small part of the gas flows into the independent ignition cavity 3 through the small hole 9 with specific aperture between the air-fuel gas mixing disc 1 and the independent ignition cavity 3, the combustion air enters from the interlayer between the silicon carbide ceramic burner pipe and the gas pipe 2, most of the combustion air flows out through the open slots 10 and open holes 11 with specific size and angle on the air-fuel gas mixing disc 1 and enters the combustion chamber 16 at the front end of the silicon carbide ceramic burner pipe, a small part of the combustion air enters the independent ignition cavity 3 through the gap between the open hole with specific aperture on the independent ignition cavity 3 and the electrode insulation sleeve, and mixes with a small part of the gas entering the independent ignition cavity 3, a plurality of cooling holes 5 with specific size can be arranged at the bottom of the independent ignition cavity 3 according to needs, for reducing the flame temperature and protecting the burner electrode 14; a section of flexible bellows 6 is arranged between the gas pipe 2 and the mounting flange 7 for axial compensation during installation.

[0024] In the embodiment, one end of the air-fuel gas mixing disc 1 is connected with the gas pipe 2 through welding.

[0025] Specifically, the welding processing mode is better, facilitates sealed assembly, and has lower process requirement.

[0026] UV ultraviolet flame monitoring hole 4 is matched with UV ultraviolet flame monitor 15 installed on the burner shell, the flame in the combustion chamber is easily monitored by the UV ultraviolet flame monitor through the UV ultraviolet flame monitoring hole, and the inside of the independent ignition cavity 3 is limited by the plug-in burner electrode 14.

[0027] Specifically, the ignition electrode extends into the independent ignition cavity 3, and under the action of high voltage, an electric spark is generated by discharge in the independent ignition cavity 3, igniting the gas and air mixture in the independent ignition cavity 3, and then the flame generated in the independent ignition cavity 3 ignites the gas and air mixture in the combustion chamber 16, completing the ignition of the burner. By igniting a small amount of gas and air mixture in the independent ignition cavity 3 first, the stability of ignition is ensured, and when the burner is equipped with a UV ultraviolet flame monitor 15, the UV ultraviolet flame monitoring hole 4 on the air-gas mixture flow disc 1 ensures the flame monitoring effect.

[0028] The air-gas mixture flow disc 1 has a groove 10 and an opening 11 on the outer wall away from the gas pipe 2, and the groove 10 and the opening 11 are provided in multiple groups. The groove 10 and the opening 11 are uniformly arrayed in a circular manner with the horizontal center line of the air-gas mixture flow disc 1 as the center, and the groove 10 and the opening 11 are spaced apart.

[0029] Specifically, the air-gas mixture flow disc 1 has a gas passage with a specific aperture and angle, and an air slot 10 and an opening 11 with specific dimensions and angles, so that the gas and combustion air flow into the combustion chamber 16 with strong vortex, and the gas and combustion air are uniformly mixed in the combustion chamber 16, ensuring the combustion effect.

[0030] In summary, compared with the prior art, the gas burner cyclone disc has at least the following beneficial effects: by setting the air-gas mixture flow disc 1 with a specific shape and opening structure, when in use, the gas enters from the gas pipe 2, most of the gas flows out through the opening with a specific aperture and angle on the air-gas mixture flow disc 1, enters the combustion chamber 16 at the front end of the silicon carbide ceramic burner pipe, a small part of the gas flows into the independent ignition cavity 3 through the small hole 9 with a specific aperture at the joint of the air-gas mixture flow disc 1 and the independent ignition cavity 3, the combustion air enters from the interlayer between the silicon carbide ceramic burner pipe and the gas pipe 2, most of the combustion air flows out through the air slot 10 and the opening 11 with specific dimensions and angles on the air-gas mixture flow disc 1, enters the combustion chamber 16 at the front end of the silicon carbide ceramic burner pipe, a small part of the combustion air enters the independent ignition cavity 3 through the gap between the opening with a specific aperture on the independent ignition cavity 3 and the electrode insulation sleeve, and mixes with a small part of the gas entering the independent ignition cavity 3. According to the need, multiple cooling holes 5 with specific dimensions can be opened at the bottom of the independent ignition cavity 3 for reducing the flame temperature and protecting the burner electrode 14; a section of flexible bellows 6 is arranged between the gas pipe 2 and the mounting flange 7 for axial compensation during installation.

[0031] The above merely describes a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present application, and these modifications or replacements should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A gas burner swirl plate with an independent ignition chamber and a UV flame monitoring port, characterized in that, include: The air-gas mixing plate (1) with an open structure includes a gas pipe (2), an independent ignition chamber (3), a UV flame monitoring hole (4), a cooling hole (5) selectively located at the bottom of the independent ignition chamber (3), a flexible corrugated pipe (6), and a mounting flange (7). The air-gas mixing plate (1) and the gas pipe (2) are connected by welding. The independent ignition chamber (3) is located on one side of the outer wall of the air-gas mixing plate (1). The UV flame monitoring hole (4) is located inside the air-gas mixing plate (1). A cooling hole (5) is selectively located on one side wall of the independent ignition chamber (3). The gas pipe (2) is connected to one side of the air-gas mixing plate (1) and is airtightly welded. The other end of the gas pipe (2) is connected to the flexible corrugated pipe (6), and the two are connected. The other end of the flexible corrugated pipe (6) is airtightly connected to the mounting flange (7), and the two are connected. The outer wall of the air-gas mixing plate (1) has three openings (13). The side of the independent ignition chamber (3) is welded with a heat-resistant steel baffle (8). The air-gas mixing plate (1), the independent ignition chamber (3) and the UV ultraviolet flame monitoring hole (4) are integrally cast. The air-gas mixing plate (1) is made of high-temperature alloy material. The independent ignition chamber (3) is connected to the air-gas mixing plate (1) by a small hole. The outer wall of the independent ignition chamber (3) on one axial side has two openings (12).

2. The gas burner swirl plate with an independent ignition chamber and a UV flame monitoring port according to claim 1, characterized in that, One end of the air-gas mixing plate (1) is connected to the gas pipe (2) by welding.

3. The gas burner swirl plate with an independent ignition chamber and a UV flame monitoring port according to claim 2, characterized in that, The UV flame monitoring hole (4) is used in conjunction with the UV flame monitor (15) installed on the burner housing. The flame in the combustion chamber is easily monitored by the UV flame monitor (15) through the UV flame monitoring hole (4). The burner electrode (14) is inserted into the internal limit of the independent ignition chamber (3).

4. The gas burner swirl plate with an independent ignition chamber and a UV flame monitoring port according to claim 3, characterized in that, The outer wall of the air-gas mixing plate (1) away from the gas pipe has a slot (10) and an opening (11) with a specific angle. There are multiple sets of slots (10) and openings (11). The slots and openings are evenly distributed in a circular array with the horizontal center line of the air-gas mixing plate (1) as the center. The slots (10) and openings (11) are distributed at intervals.

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