KR101879138B1 - Igniter and using method thereof - Google Patents

Abstract

According to one embodiment of the present invention, provided is an igniter, which can comprise: an ignition rod unit having an electrode core covered with a fire-resistance insulating body to expose one end portion of the ignition rod unit and an electrode cover covering the electrode core while forming a predetermined gap with the electrode core so as to enable the fire-resistance insulating body to be disposed between the electrode core and the electrode cover; and a shielding unit which covers the electrode cover, and of which position is moved to be close to one end portion of the electrode core.

Description

Igniter and using method < RTI ID = 0.0 >

The present invention relates to an igniter and a method of using the same.

In an annealing furnace, an igniter for generating high-voltage electricity for burner ignition is used.

This igniter generates an electric spark at an end portion of the ignition rod unit by an interval between the center electromotive force and the electrode shell (or iron foil) surrounding the electrode shim so that the fuel from the fuel nozzle of the burner body 2 and the air nozzle And acts as a combustion ignition point against the air coming out.

That is, an electric spark is generated in a mixture of the fuel nozzle and the fuel or air from the air nozzle to cause ignition for combustion.

However, even when the ignition rod unit is normally ignited in the burner main body, the end portion of the ignition rod unit is continuously exposed in the high-temperature flame, so that the front end of the ignition rod unit and the electrode shell are damaged by the deterioration in the early stage, An unlikely problem will arise.

That is, even if electricity is supplied to the ignition rod unit for re-ignition, the electrode shell of the end portion is burned or deformed due to deterioration, and the spark is not generated because the interval can not be maintained will be.

In addition, due to the deficiency of the ignition rod unit, the ignition rod unit must be replaced, which requires a lot of time, increases the work load of the worker, and stops the use of the annealing furnace, .

Accordingly, there is a need for research into an igniter and a method of using the same to solve the above-mentioned problems.

Korean Application No. 20-1990-0015227

It is an object of the present invention to provide an igniter that delays burn-out of an electrode shell of an ignition rod unit and a method of using the same.

It is also an object of the present invention to provide an igniter that maintains the ignition function of the ignition rod unit by adjusting the shielding unit so that the electrode shell of the ignition rod unit can be replaced even if it is burned.

The igniter according to an embodiment of the present invention forms a certain gap with the electrostatic center so that the refractory insulator is provided between the electrostatic pole surrounded by the refractory insulator and the electrostatic pole so that only one end is exposed, And a shielding unit surrounding the electrode shell and provided so as to be moved to a position adjacent to one end of the electrode shell.

Here, the shielding unit of the igniter according to an embodiment of the present invention may include a shielding pipe member inserted into the ignition rod unit and having one end adjacent to one end of the electrode seam.

In addition, the shielding unit of the igniter according to an embodiment of the present invention may include a tube fixing member coupled to the shielding tube member and closely fixed to the ignition rod unit.

The tube fixing member of the igniter according to an embodiment of the present invention includes a bolt coupling portion including an inclined surface at an inner portion and screwed to an inclined nut portion formed at the other end portion of the shielding tube member, And a tightening bushing portion provided between the bolt coupling portion and provided on one side of the bolt coupling portion.

In addition, the tightening bushing portion of the igniter according to the embodiment of the present invention may have an inclined surface formed at one end portion thereof which is in contact with the inclined surface of the inclined nut portion.

Further, the tightening bushing portion of the igniter according to the embodiment of the present invention may be characterized in that one side thereof is diagonally bent.

The shielding unit of the igniter according to an embodiment of the present invention may be formed of a material that is more refractory than the electrode shell and is energized.

The method of using an igniter according to another embodiment of the present invention includes a preceding ignition step of coupling the igniter to a burner body and burning the fuel in the burner body using sparks generated between the electrode tip and the electrode shell, A burn-out confirmation step of separating the igniter from the burner body after completion of combustion and confirming a disappearance state of the electrode shell and the shielding unit; A position adjusting step of changing the remaining portion of the shielding unit to a position adjacent to the pole tip.

Here, the position adjusting step of the igniter using method according to another embodiment of the present invention may further comprise: a shielding tube member of the shielding unit inserted into the ignition rod unit and a tube fixing member for fixing the shielding tube member to the ignition rod unit, A moving step of moving one end of the remaining shielding tube member adjacent to the one end of the electrode shim, a step of moving the shielding tube member moved adjacent to the one end of the electrode shim, And fixing the moved position of the shielding pipe member.

According to another aspect of the present invention, there is provided a method of using an igniter, comprising the steps of: coupling an igniter, whose position is adjusted by the shielding unit, to a burner body; and applying a spark generated between the electric pole and the shielding unit to the burner body And a post ignition step of combusting the re-injected fuel.

The igniter and the method of using the same according to the present invention have an advantage that the burning of the electrode shell of the ignition rod unit can be delayed.

Further, the igniter and the method of using the same according to the present invention have an advantage in that the ignition function of the ignition rod unit can be maintained by adjusting the shielding unit so that the electrode shell of the ignition rod unit is burned out.

Thus, by reducing the number of times of replacement of the ignition rod unit by increasing the service life of the ignition rod unit, the time required for replacing the ignition rod unit and the load of the operator can be reduced, And the like can be prevented.

1 is a perspective view showing a state where an igniter of the present invention is coupled to a burner main body.
2 is a front view showing the igniter of the present invention.
FIG. 3 is a front view showing a state in which the shielding pipe member partially burnt in the igniter of the present invention is moved to the vicinity of the extreme end.
4 is a front view showing the ignition rod unit in the igniter of the present invention.
5 is a front view showing a state in which the shielding unit is unlocked in the igniter of the present invention.
6 is a cross-sectional view showing a shielding unit in the igniter of the present invention.
7 is a flowchart showing a method of using the igniter of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, the embodiments of the present invention can be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below. Further, the embodiments of the present invention are provided to more fully explain the present invention to those skilled in the art. The shape and size of elements in the drawings may be exaggerated for clarity.

Also, in this specification, the singular forms "a,""an," and "the" include plural referents unless the context clearly dictates otherwise, and reference signs allotted in the same reference notation or the like throughout the specification refer to the same or corresponding components .

The present invention relates to an igniter (1) and a method of using the igniter. The present invention can delay the burnout of the electrode shell (12) of the ignition rod unit (10) The ignition function of the ignition rod unit 10 can be maintained by adjusting the shielding unit 20 so that the ignition rod unit 10 can be replaced.

This reduces the number of times of replacement of the ignition rod unit 10 by increasing the service life of the ignition rod unit 10, thereby reducing the time required for replacing the ignition rod unit 10 and the load on the operator, It is possible to prevent the problem that the use of the annealing furnace or the like provided with the burner main body 2 to be used is stopped and the production amount is lowered.

1 is a perspective view showing a state where the igniter 1 of the present invention is coupled to the burner body 2, FIG. 2 is a front view showing the igniter 1 of the present invention, and FIG. 3 is a cross- FIG. 4 is a front view showing a state in which the shielding pipe member 21 partially burnt in the igniter 1 of the ignition device 1 of the present invention is moved to the vicinity of the pole tip 11, Fig.

Particularly, FIG. 3 is a cross-sectional view of the electrode enclosure 2 adjacent to the end of the electric pole core 11 after the use of the ignition function in the burner main body 2 in a state where the shielding unit 20 is coupled to the ignition rod unit 10, (11) so that a remaining portion of the shielding pipe member (21) can replace the portion of the electrode shell (12) when the portion of the shielding pipe member (12) And is moved and fixed adjacent to the part.

1 to 4, an igniter 1 according to an embodiment of the present invention includes a pole tip 11 surrounded by a refractory insulator 11a so as to expose only one end thereof, An ignition rod unit 10 formed of an electrode shell 12 surrounding the pole tip 11 and forming a certain gap from the pole tip 11 so that the refractory insulator 11a is provided between the pole tip 11 and the pole tip 11, And a shielding unit 20 provided around the shell 12 and provided so as to be moved in a position adjacent to one end of the pole tip 11. [

In this way, the shielding unit 20 is provided in connection with the ignition rod unit 10, so that the burning of the electrode shell 12 can be delayed, and even when the electrode shell 12 is burned, The unit 20 can perform the function of the electrode shell 12 in place of the function of the electrode shell 12.

The ignition rod unit 10 functions to generate an electric spark to form an ignition point for igniting the fuel. For this purpose, the ignition rod unit 10 may include a central pole 11 and an electrode shell 12 spaced apart from the pole center 11 by a predetermined distance.

Here, the pole tip 11 and the pole shell 12 electrically form an anode and a cathode, respectively, and electric sparks are generated in a gap between the pole tip 11 and the shell 12.

The electric spark means a gap in which a current can move through a material such as air provided in the space between the pole tip 11 and the electrode shell 12.

In addition, the pole tip 11 may be exposed in such a manner that only one end thereof can pass current, while the other pole portion may be coated with a refractory insulator 11a such as a ceramic. According to this, although the electrode shell 12 is provided in close contact with the refractory insulator 11a, the electrode shell 12 naturally maintains a certain distance from the pole tip 11. The structure of this ignition rod unit 10 can be more clearly seen in Fig.

The pole tip 11 may be formed of a Kanthal material. The pole tip 11 may be formed of a material having a higher refractoriness than the electrode shell 12. For example, the pole tip 11 may be formed of Kanthal, And may be formed of a common steel material for heat resistance of the cantilever.

The shielding unit 20 is provided to enclose the ignition rod unit 10 so as to delay the problem of burning the ignition rod unit 10 in the high temperature region of the burner body 2. [

In particular, the shielding unit 20 is provided so as to surround the periphery of one end of the pole tip 11 for generating a spark in the ignition rod unit 10, so that the electrode disposed around one end of the pole tip 11 It is possible to delay the burnout of the envelope 12.

To this end, the shielding unit 20 of the igniter 1 according to the embodiment of the present invention is inserted into the ignition rod unit 10, and one end thereof is adjacent to one end of the ion pole 11 The shielding tube member 21 may be formed of a metal.

That is, the shielding tube member 21 protects the electrode shell 12. For this purpose, the shielding pipe member 21 is preferably made of a material having better refractory than the electrode shell 12.

The shielding pipe member 21 may be made of an electrically conductive material so as to generate a spark between the electrode shell 12 and the electrode core 12 in place of the electrode shell 12 when the electrode shell 12 is burned. .

That is, the shielding unit 20 of the igniter 1 according to an embodiment of the present invention is formed of a material which is more refractory than the electrode shell 12 and is energized.

In order for the shielding pipe member 21 to replace the function of the electrode shell 12, the position of the shielding pipe member 21 may be moved adjacent to the one end of the pole tip 11. [ The fact that the electrode shell 12 adjacent to one end of the pole tip 11 is destroyed means that a portion of the shielding pole member 21 adjacent to one end of the pole tip 11 has also been damaged, It is necessary to move the remaining portion of the tubular member 21 adjacent to the one end of the pole tip 11.

To this end, the shielding unit 20 further includes a tube adjusting member in addition to the shielding tube member 21, which will be described later in detail with reference to FIGS. 5 and 6. FIG.

5 is a front view showing a state in which the shielding unit 20 is released from the igniter 1 of the present invention and FIG. 6 is a sectional view showing the shielding unit 20 in the igniter 1 of the present invention.

The shielding unit 20 of the igniter 1 according to the embodiment of the present invention is connected to the shielding tube member 21 and is fixed to the ignition rod unit 10 (22).

In other words, in order to fix the remaining portion of the shielding pipe member 21 after moving it adjacent to the one end of the pole tip 11, the shielding unit 20 further includes the pipe fixing member 22 You can do it.

More specifically, the tube fixing member 22 may include a bolt coupling portion 22a and a tightening bushing portion 22b. When the bolt coupling portion 22a is screwed with the shielding tube member 21, And the tightening bushing 22b provided therebetween is configured to be tightly fixed to the ignition rod unit 10 with the diameter reduced.

The tube fixing member 22 of the igniter 1 according to the embodiment of the present invention includes an inclined nut portion 21a formed at the other end portion of the shielding tube member 21, And a tightening bushing 22b provided between the tilting nut portion 21a and the bolt coupling portion 22a and provided at one side of the bolt coupling portion 22a, .

The tightening bushing 22b is tightly fixed to the ignition rod unit 10 while being crushed while moving along the inclined surface of the inclined nut 21a of the shielding pipe member 21. [

In addition, the tightening bush portion 22b of the igniter 1 according to the embodiment of the present invention may have an inclined surface formed at one end of the tightening nut portion 21a which is in contact with the inclined surface.

The inclined surface is also formed on the outer surface of the tightening bushing 22b so that the tightening bushing 22b is guided along the inclined surface when moving along the inclined surface formed on the inclined nut 21a.

Further, the tightening bush portion 22b of the igniter 1 according to the embodiment of the present invention may be characterized in that one side thereof is diagonally bent.

That is, when the tightening bushing 22b is shrunk, only one side in the radial direction is subjected to a torsion force, the torsion force is concentrated, thereby causing a problem of breakage or permanent deformation of the tightening bushing 22b However, if the toe portion of the tightening bush portion 22b is formed in an oblique shape, the force of the erosion is dispersed, and the problem of breakage or permanent deformation of the tightening bush portion 22b can be reduced.

Referring to FIG. 7, a method of using an igniter 1 according to another embodiment of the present invention includes combining the igniter 1 with a burner body, A preliminary ignition step of burning the fuel in the burner body by using a spark generated between the extreme core 11 and the electrode shell 12; separating the igniter 1 from the burner body after completion of combustion of the fuel; And a shielding unit 20 for shielding the electrode shell 12 and the shielding unit 20 from contact with the electrode shell 12 and the shielding unit 20, The position of the remaining portion of the shielding unit 20 is changed to a position adjacent to the pole tip 11 when the loss of the portion of the shielding unit 20 is confirmed.

As described above, the method of using the igniter 1 of the present invention includes the pre-ignition step, and further includes the burn-out confirmation step and the position adjustment step to replace the burned electrode shell 12 with the shielding unit 20 serve as an electrode, so that the ignition function can be maintained.

The pre-ignition step is a step of generating an electric spark between the pole tip 11 of the ignition rod unit 10 and the electrode shell 12 so that the fuel inside the burner main body 2 is burned To form an ignition point.

The burn-out confirmation step is a step in which the fuel inside the burner body 2 is burned by the pre-ignition step so that the burn-in of the electrode shell 12 at one end of the ignition rod unit 10, And confirming the disappearance. At this time, since the shielding unit 20 surrounds the electrode shell 12, it is possible to delay the disappearance of the electrode shell 12, but with continued ignition and exposure to the flame, .

At this time, the disappearance of the electrode shell 12 means that the shielding unit 20 surrounding the electrode shell 12 is also lost, and the burn-out confirmation step confirms disappearance of the electrode shell 12, 20) (more specifically, the portion of the shielding pipe member 21 adjacent to the pole tip 11).

The position adjustment step may include checking the disappearance of the electrode shell 12 adjacent to one end of the tip electrode 11 and the disappearance of the shielding unit 20 adjacent to one end of the tip electrode 11 in the burn- , The remaining portion of the shielding unit 20 is moved and fixed to a position adjacent to one end of the pole tip 11 in order to maintain the ignition function.

That is, since the dislocated electrode shell 12 is tightly coupled to the refractory insulator 11a surrounding the pole tip 11 (or coated structure), it is impossible to move the position, The spark does not occur too far away,

However, since the shielding unit 20 includes the shielding pipe member 21 and the pipe fixing member 22, since the position can be shifted, the remaining portion can be moved adjacent to the one end of the pole core 11 And an electrode for replacing the electrode shell 12.

More specifically, the position adjustment step includes a fixed disassembly step, a moving step, and a stocking step, so that the remaining shielding tube member 21 can be moved and fixed to a position adjacent to one end of the pole shaft 11 do.

In other words, the position adjustment step of the method of using the igniter 1 according to another embodiment of the present invention may include a step of positioning the shielding tube member 21 of the shielding unit 20 inserted in the ignition rod unit 10, (22) for fixing the pipe member (21) to the ignition rod unit (10); a step of disengaging one end portion of the remaining shielding pipe member (21) (22) to the shielding pipe member (21) moved adjacent to one end of the pole tip (11) to move the shielding pipe member (21) And fixing the moved position.

The disengagement step is a step of disengaging the tube fixing member 22 from the shielding tube member 21 and fixing the bolt fitting portion 22a of the tube fixing member 22 and the shielding tube member 21 by releasing the screwing of the inclined nut portion 21a.

The moving step is a step of moving the remaining shielding pipe member 21 from which the fixation is released, adjacent to the one end of the pole tip 11. At this time, it is preferable that the gap between one end of the pole tip 11 and the remaining portion of the shielding pipe member 21 is such a gap that current can flow through air or the like located between the gaps. For example, it is preferable to adjust the position to be about 2 to 3 mm.

The restoring step is a step of fixing the tube fixing member 22 to the shielding tube member 21 whose position has been adjusted and fixing the tube fixing member 22 to the inclined nut portion 21a. 22a are screwed and the tightening bush portion 22b provided therebetween is fixed to the ignition rod unit 10 while being crushed.

The method of using the igniter 1 according to another embodiment of the present invention is characterized in that the igniter 1 whose position is adjusted by the shielding unit 20 is again coupled to the burner body, And a post ignition step of burning the fuel re-injected into the burner body by using sparks generated between the burner body 20 and the burner body.

That is, the post-ignition step is a step of burning the fuel in the burner body by generating a spark by the shielding tube member 21 serving as an electrode instead of the electrode shell 12 by being repositioned.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined in the appended claims. But will be obvious to those of ordinary skill in the art.

1: igniter 2: burner body
10: ignition rod unit 11:
11a: Refractory insulator 12: Electrode sheath
20: Shielding unit 21: Shielding tube member
21a: an inclined nut portion 22: a tube fixing member
22a: bolt connecting portion 22b: tightening bushing portion

Claims (10)

An ignition rod unit including an electrode shell formed to surround the electrode shaft and forming a certain gap from the total length of the armature so that the refractory insulator is provided between the pole tip and the pole tip, ; And
A shielding unit surrounding the electrode shell and provided so as to be moved in a position adjacent to one end of the electrode stem;
/ RTI >
Wherein the shielding unit is made of a material which is more refractory than the electrode shell and is energized. The method according to claim 1,
The shielding unit includes:
A shielding pipe member inserted into the ignition rod unit and having one end adjacent to one end of the electrode seam;
≪ / RTI > 3. The method of claim 2,
The shielding unit includes:
A tube fixing member coupled to the shielding tube member and fixedly attached to the ignition rod unit;
≪ / RTI > The method of claim 3,
Wherein the tube-
A bolt engaging portion including an inclined surface at an inner portion thereof and screwed to an inclined nut portion formed at the other end portion of the shielding tube member; And
A tightening bushing provided between the tilting nut portion and the bolt coupling portion and provided in a shape of one side of the tightening nut portion;
≪ / RTI > 5. The method of claim 4,
Wherein the tightening bushing has an inclined surface formed at one end portion thereof which is in contact with an inclined surface of the inclined nut portion. 5. The method of claim 4,
Wherein the tightening bushing portion has one side projected in an oblique shape. delete A pre-ignition step in which the igniter of any one of claims 1 to 6 is coupled to a burner body, and the fuel in the burner body is burned using sparks generated between the electrode tip and the electrode shell;
A burn-out confirmation step of separating the igniter from the burner body after completion of the combustion of the fuel, and confirming the disappearance state of the electrode shell and the shielding unit; And
A position adjusting step of changing a remaining portion of the shielding unit to a position adjacent to the electrostatic pole when the electrode shell adjacent to one end exposed to the outside of the electrode shim and the part of the shielding unit are confirmed to be lost;
/ RTI > 9. The method of claim 8,
Wherein the position adjustment step comprises:
Releasing the engagement of the shielding tube member of the shielding unit inserted into the ignition rod unit and the tube fixing member fixing the shielding tube member to the ignition rod unit;
Moving the one end of the shielding tube member remaining adjacent to one end of the electrode stem; And
Fixing the moved position of the shielding pipe member by connecting the pipe fixing member to the shielding pipe member moved adjacent to the one end of the electrode pier;
/ RTI > 9. The method of claim 8,
A rear ignition step of coupling the igniter with the position of the shielding unit to the burner body again and burning the fuel injected into the burner body using the spark generated between the front end and the shielding unit;
/ RTI >

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