Ignition needle for boiler

Abstract

The utility model discloses an ignition needle for a boiler, and relates to the technical field of ignition needles, the ignition needle for the boiler comprises a gas pipe, the upper end of the gas pipe is provided with a natural gas electromagnetic valve interface, and the natural gas electromagnetic valve interface is used for connecting a natural gas electromagnetic valve so as to control the gas pipe to enter or not enter natural gas; the air inlets are densely formed in the cambered surface, close to the lower end, of the air pipe, so that the air enters the air pipe to be premixed with natural gas; the ignition needle bodies are located on the two sides of the gas pipe, and the upper ends of the two ignition needle bodies are provided with a first wiring end and a second wiring end respectively; a first high voltage igniter high voltage line, a second high voltage igniter high voltage line and a grounding high voltage line. As any two high-voltage wires can generate ignition arcs, the ignition success rate is multiple times that of a common igniter and is superior to that of the common igniter; the grounding high-voltage wire extends downwards, so that the grounding high-voltage wire can jet ignition flames.

Description

Technical Field

[0001] The utility model relates to the technical field of ignition needles, in particular to an ignition needle for a boiler. Background Art

[0002] At present, the premix burner in the boiler needs to be equipped with an ignition needle to ignite the natural gas. In order to increase the probability of ignition, there is a double-needle ignition needle, that is, it has two ignition needles, so the probability of ignition can be increased.

[0003] In order to further improve the ignition probability, for example, a double-bracket ignition needle is proposed in the patent with publication number CN219120618U, which uses three ignition needles. However, the ignition needle in the middle cannot spread the flame to the other parts, resulting in a slow ignition speed. Utility Model Content

[0004] The utility model provides an ignition needle for a boiler, which has the advantage of fast ignition speed, and solves the problem in the prior art that the ignition needle in the middle cannot spread the flame to other parts, resulting in slow ignition speed.

[0005] In order to achieve the purpose of fast ignition speed, the utility model provides the following technical solutions: an ignition needle for a boiler, comprising: an air pipe, the upper end of which is provided with a natural gas solenoid valve interface, the natural gas solenoid valve interface is used to connect the natural gas solenoid valve to control whether the air pipe enters natural gas or not; an air inlet, the air inlet is densely arranged on the arc surface of the air pipe near the lower end, so that the air enters the air pipe and is premixed with the natural gas; an ignition needle body, the ignition needle body is located on both sides of the air pipe, and the upper ends of the two ignition needle bodies are respectively set as a first wiring terminal and a second wiring terminal, the lower end of the ignition needle body has a bending portion, and the lower end surface of the air pipe is provided with an ignition A flame injection port, wherein the bending portion is opposite to the flame injection port; a first high-voltage igniter high-voltage wire, a second high-voltage igniter high-voltage wire and a grounding high-voltage wire, wherein the first high-voltage igniter high-voltage wire and the second high-voltage igniter high-voltage wire are respectively arranged at one end of the two ignition needle main body bending portions away from the lower end of the trachea, and the grounding high-voltage wire is arranged directly below the trachea, and any two of the first high-voltage igniter high-voltage wire, the second high-voltage igniter high-voltage wire and the grounding high-voltage wire can generate an ignition arc to form an ignition flame; the grounding high-voltage wire extends downward so that the grounding high-voltage wire has an extended length, and the grounding high-voltage wire with an extended length can spray an ignition flame.

[0006] As a preferred technical solution of the utility model, the grounded high-voltage wire is electrically connected to a gas solenoid valve; during ignition, the gas solenoid valve is opened to allow gas to enter.

[0007] As a preferred technical solution of the utility model, an ignition needle cover is provided outside the ignition needle body near the upper part, so that the ignition needle cover insulates the upper part of the ignition needle body.

[0008] As a preferred technical solution of the utility model, the ignition needle outer cover is made of PVC or ceramic material.

[0009] As a preferred technical solution of the utility model, it also includes a bracket, the air pipe and the ignition needle outer cover are fixed on the bracket, and the bracket is provided with a mounting hole, and the mounting hole is used to mount the bracket on the boiler.

[0010] Compared with the prior art, the utility model provides an ignition needle for a boiler, which has the following beneficial effects:

[0011] 1. This boiler uses an ignition needle. Since any two high-voltage wires can generate an ignition arc, the ignition success rate is many times that of an ordinary igniter, which is better than using.

[0012] 2. The ignition needle of the boiler extends downward through the grounding high-voltage wire, so that the grounding high-voltage wire has an extended length. The grounding high-voltage wire with the extended length can spray the ignition flame, thereby further ensuring the combustion of the flame below. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is the front view of the utility model;

[0015] Figure 3 It is a side view of the utility model;

[0016] Figure 4 It is a bottom view of the utility model.

[0017] In the figure: 1. ignition needle body; 101. first wiring terminal; 102. second wiring terminal; 2. air pipe; 21. natural gas solenoid valve interface; 22. flame injection port; 3. bracket; 4. air inlet; 5. first high-voltage igniter high-voltage wire; 6. second high-voltage igniter high-voltage wire; 7. grounding high-voltage wire; 8. ignition needle outer cover. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1 - Figure 4 As shown, the utility model discloses an ignition needle for a boiler, including an air pipe 2, at the upper end of which a natural gas solenoid valve interface 21 is provided. The natural gas solenoid valve interface 21 is used to connect a natural gas solenoid valve, so as to control whether natural gas enters the air pipe 2 or not by controlling the opening or closing of the natural gas solenoid valve.

[0020] An air inlet 4 is also provided, and the air inlet 4 is densely arranged on the arc surface near the lower end of the gas pipe 2, so that air and natural gas can be premixed at the lower end inside the gas pipe 2 to achieve better combustion.

[0021] The ignition needle body 1 is arranged on both sides of the air pipe 2, and the upper ends of the two ignition needle bodies 1 are respectively set as the first terminal 101 and the second terminal 102, the first terminal 101 and the second terminal 102 are respectively connected to the two terminals of the double-needle high-voltage igniter, so that the double-needle high-voltage igniter can be electrically connected to the ignition needle body 1, the lower end of the ignition needle body 1 here has a bending part, and the lower end surface of the air pipe 2 is provided with a flame injection port 22, the bending part is opposite to the flame injection port 22, so that the lower end of the ignition needle body 1 is aligned with the flame injection port 22, in fact, the flame can be formed after the electric arc is generated, so that the flame injection port 22 can spray the flame.

[0022] A first high-voltage igniter high-voltage wire 5, a second high-voltage igniter high-voltage wire 6 and a grounding high-voltage wire 7 are also provided. The first high-voltage igniter high-voltage wire 5 and the second high-voltage igniter high-voltage wire 6 are respectively provided at the two ends of the ignition needle body 1 that are bent away from the lower end of the trachea 2. The grounding high-voltage wire 7 is provided directly below the trachea 2. Any two of the first high-voltage igniter high-voltage wire 5, the second high-voltage igniter high-voltage wire 6 and the grounding high-voltage wire 7 can generate an ignition arc to form an ignition flame. Therefore, the ignition needle for a boiler provided in the embodiment of the utility model has an ignition arc generated by any two high-voltage wires, so the ignition success rate is many times that of an ordinary igniter, which is better than using.

[0023] The grounding high-voltage line 7 extends downward so that the grounding high-voltage line 7 has an extended length. The grounding high-voltage line 7 with the extended length can spray an ignition flame, thereby further ensuring the combustion of the flame below.

[0024] Specifically, the grounded high-voltage wire 7 is electrically connected to the gas solenoid valve; the gas solenoid valve is opened during ignition to allow gas to enter, and a controller should also be included. When the grounded high-voltage wire 7 is energized and ignited, the controller controls the gas solenoid valve to open, thereby allowing gas to enter the gas pipe 2.

[0025] Combination Figure 1An ignition needle cover 8 is provided outside the ignition needle body 1 near the upper part, so that the ignition needle cover 8 insulates the upper part of the ignition needle body 1 and protects the ignition needle body 1.

[0026] The optional ignition needle cover 8 is made of PVC or ceramic material.

[0027] like Figure 1 A bracket 3 is also provided, the air pipe 2 and the ignition needle outer cover 8 are fixed on the bracket 3, and a mounting hole is opened on the bracket 3, and the mounting hole is used to install the bracket 3 on the boiler, thereby achieving the purpose of installing the ignition needle provided by the utility model on the boiler for use.

[0028] The working principle and use process of the utility model are as follows: when in use, the double-needle high-voltage igniter can work through the first high-voltage igniter high-voltage wire 5 and the second high-voltage igniter high-voltage wire 6 on the ignition needle body 1. Any two high-voltage wires of the first high-voltage igniter high-voltage wire 5, the second high-voltage igniter high-voltage wire 6 and the grounding high-voltage wire 7 can generate an arc, so that the ignition success rate is many times that of an ordinary igniter, which is better than using the grounding high-voltage wire 7. The gas solenoid valve can be controlled to open, so that the gas can flow downward from the gas pipe 2, and the air can enter the gas pipe 2 from the air inlet 4, so that the air and gas can be premixed at the lower end of the gas pipe 2 and discharged from the flame injection port 22, and ignited by the extended length of the grounding high-voltage wire 7, so as to realize combustion below the grounding high-voltage wire 7.

[0029] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0030] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ignition needle for a boiler, characterized in that: include: An air pipe (2), wherein a natural gas solenoid valve interface (21) is provided at the upper end of the air pipe (2), and the natural gas solenoid valve interface (21) is used to connect a natural gas solenoid valve to control whether natural gas enters the air pipe (2) or not; Air inlets (4), the air inlets (4) being densely arranged on the arc surface near the lower end of the air pipe (2) so that the air can enter the air pipe (2) and be premixed with the natural gas; An ignition needle body (1), the ignition needle body (1) being located on both sides of the air pipe (2), and the upper ends of the two ignition needle bodies (1) being respectively configured as a first wiring terminal (101) and a second wiring terminal (102), the lower end of the ignition needle body (1) having a bending portion, the lower end surface of the air pipe (2) being provided with a flame injection port (22), the bending portion being opposite to the flame injection port (22); A first high-voltage igniter high-voltage wire (5), a second high-voltage igniter high-voltage wire (6) and a grounding high-voltage wire (7), wherein the first high-voltage igniter high-voltage wire (5) and the second high-voltage igniter high-voltage wire (6) are respectively arranged at one end of the bending part of the two ignition needle bodies (1) away from the lower end of the air pipe (2), and the grounding high-voltage wire (7) is arranged directly below the air pipe (2), and any two of the first high-voltage igniter high-voltage wire (5), the second high-voltage igniter high-voltage wire (6) and the grounding high-voltage wire (7) can generate an ignition arc to form an ignition flame; The grounding high-voltage wire (7) extends downward so that the grounding high-voltage wire (7) has an extended length, and the grounding high-voltage wire (7) with the extended length can spray an ignition flame.

2. The ignition needle for a boiler according to claim 1, characterized in that: The grounded high-voltage wire (7) is electrically connected to a gas solenoid valve; during ignition, the gas solenoid valve is opened to allow gas to enter.

3. An ignition needle for a boiler according to claim 1 or 2, characterized in that: An ignition needle outer cover (8) is provided outside the ignition needle body (1) near the upper part, so that the ignition needle outer cover (8) is insulated from the upper part of the ignition needle body (1).

4. The ignition needle for a boiler according to claim 3, characterized in that: The ignition needle outer cover (8) is made of PVC material or ceramic material.

5. The ignition needle for a boiler according to claim 4, characterized in that: It also comprises a bracket (3), the gas pipe (2) and the ignition needle outer cover (8) are both fixed on the bracket (3), and the bracket (3) is provided with a mounting hole, and the mounting hole is used to mount the bracket (3) on the boiler.

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