KR101870969B1 - Torch assembly for seperating ignition plug - Google Patents

Abstract

The present invention relates to a torch assembly for separating an ignition plug. The torch assembly provided with a spark plug comprises: a fixing body inserted with the spark plug and provided with a first fastening portion; and the spark plug provided with a second fastening portion which is processed to be fastened to the first fastening portion at one side of the spark plug, thereby capable of reducing exchanging time of the ignition plug.

Description

[0001] Torch assembly for seperating ignition plug [

The present invention relates to an ignition device having an ignition plug, and more particularly to an ignition plug detachable torch assembly in which an ignition plug is detachably replaceable from a fixture through which the ignition plug is fixed.

Generally, the ignition device is configured to ignite the gas by generating a spark in the spark plug when the power supplied from the power supply is applied to the spark plug through the ignition cable.

Such an ignition device is used, for example, in a gas turbine generator configured to rotate a turbine with a high-temperature, high-pressure combustion gas in such a manner as to produce electricity using a gas turbine as a prime mover. Such a gas turbine ignition device is installed to ignite the gas supplied by the spark plug when the gas turbine is operated, so that the gas is combusted stably in the gas turbine combustion chamber.

More specifically, as shown in FIG. 1, the ignition apparatus is configured such that the power supplied from the power supply unit 10 is applied to the spark plug 13 through the ignition cable 11, So that the gas is ignited to cause stable combustion in the gas turbine combustion chamber. Here, the torch assembly is composed of the spark plug 13 and the fixture 14. At this time, the spark plug 12 is embedded in the fixed body 13 installed through the side wall of the combustion chamber, and can be firmly fixed to the fixed body 13 via an insulator provided at regular intervals. The explosive force of the gas burned by the ignition device constructed as above is changed as the rotational power source of the gas turbine to produce electric power through the generator.

However, if the igniter is used for a certain period of time, the insulator should be replaced after a certain period of time, such as when the insulator built in the spark plug 13 is destroyed or thermally deformed to seriously degrade the high temperature.

Therefore, it is necessary to separate the ignition device from the combustion chamber in order to replace the insulator, to purge all of the gas in the gas turbine combustion chamber for this purpose, and to reset the conditions in the gas turbine combustion chamber again after the ignition device is re- There is a problem in that replacement work is performed.

Korean Patent No. 10-1399107 (Announcement of May 27, 2014) Korean Patent No. 10-0585958 (2006.06.09. Announcement) Korean Registered Patent No. 10-1121394 (Announced on March 5, 2012)

It is an object of the present invention, which is devised to solve the problems described above, to provide a spark plug detachment type ignition plug capable of replacing an ignition plug in a state in which a condition in a combustion chamber is maintained, To provide a torch assembly.

In order to achieve the above-mentioned object, a spark plug detachable type torch assembly according to the present invention is a torch assembly having a spark plug, comprising: a fixed body having a spark plug inserted therein and having a first fastening portion; And a spark plug having a second fastening part that is fastened to the first fastening part.

Here, the fixture is composed of a head portion fixed to the side wall of the combustion chamber and having a fastening hole formed in a part of the inner surface of the first fastening portion while the spark plug is inserted, and a spark plug extending from the head portion and passing through the fastening hole And an extension portion which is located inside.

The spark plug includes a housing having an electrode rod fixed therein, and a connection port fixed to one side of the housing and connected to the ignition cable, wherein the second coupling portion is fabricated on a part of the housing or the connection port.

Further, the housing or the connection port is selectively provided with a plurality of cut-out grippers so as to fit the spanner.

The first fastening portion and the second fastening portion are engaged by screws, bolts, or hooks using hooks and hooks.

As described above, according to the present invention, when the spark plug is replaced with a failure or aging, the spark plug is detached from the fixed body fixed to the side wall of the combustion chamber and is removed, It is possible to save the conventional replacement time of about 8 hours to about 2 hours.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description, serve to further the understanding of the technical idea of the invention, Should not be interpreted.
Figure 1 is a schematic diagram of a general torch assembly.
2 is a side view of an ignition plug detachable torch assembly according to a preferred embodiment of the present invention.
Figure 3 is a side view of the torch assembly of Figure 2 in an exploded state;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the detailed description of known functions and configurations incorporated herein will be omitted when it may unnecessarily obscure the subject matter of the present invention.

<Configuration>

A detachable torch assembly according to a preferred embodiment of the present invention comprises a fixture 100 and a spark plug 200, as shown in FIGS. Here, one or two spark plugs 200 may be inserted and fixed to the fixture 100.

The fixture 100 is a member in which one or more spark plugs 200 are inserted and fixed, for example, a tip of a spark plug 200 is located in a combustion chamber of a gas turbine of a power plant. The fixture 100 may include a fixing portion 110 and an extension portion 120.

First, the fixing portion 110 is a portion fixed through the side wall of the combustion chamber. The fixing portion 110 has a substantially cylindrical shape and may have a fastening hole 111 so that the electrode of the spark plug 200 passes through. Of course, the shape of the fixing portion 110 may be a polygon including a quadrangle, an octagon, etc. other than the cylindrical shape. Further, the fastening holes 111 can be machined to be the same as the number of the spark plugs 200. The inner surface of the fastening hole 111 may have a first fastening part 112 that is screwed or bolted or engaged with the second fastening part 230 of the spark plug 200. The first fastening portion 112 can be threaded for threading, threaded or bolted for bolting, and hooks or anchoring holes can be machined for engagement.

The extended portion 120 is extended from the fixed portion 110 and is a portion where the electrode of the spark plug 200 is inserted and fixed. The extended portion 120 can be machined with the same number of holes as the fastening holes 111 while communicating with the fastening holes 111. The tip of the spark plug 200 may be fixed to the tip of the extension 120 such that the tip of the spark plug 200 slightly protrudes.

The spark plug 200 is a member in which a tip is positioned in the combustion chamber to generate a spark. The spark plug 200 is typically manufactured such that an electrode rod connected to an anode is firmly fixed through a plurality of insulators in a housing 210 connected to a cathode. In addition, a connection port 220 connected to the ignition cable may be provided on one side of the spark plug 200.

3, the spark plug 200 is screwed or bolted or engaged with the first fastening portion 112 formed on the inner surface of the fastening hole 111 on the opposite side of the tip, The second fastening part 230 may be provided. The second fastening part 230 may be formed on the housing 210 or may be formed on a part of the connection port 220 on the housing 210 side.

Threads can be machined for threading, threads can be machined or nuts fixed for bolting, and hooks or jam holes can be machined for jamming. In addition, the multiple-cut gripper 240, which can be held by the spanner, can be machined by turning the spark plug 200 clockwise or counterclockwise for screwing or bolting. The grip portion 240 may be formed on the outer surface of the housing 210 or the outer surface of the connection port 200 and may be located near the second connection portion 230.

<Assembly and Separation>

Hereinafter, the assembly and separation of the spark plug detachable torch assembly according to the preferred embodiment of the present invention will be described.

When the spark plug 200 is fixed to the fixture 100,

First, the fixing portion 110 of the fixture 100 is passed through the side wall of the combustion chamber and is firmly fixed. At this time, the extension portion 120 is positioned inside the combustion chamber.

Next, the housing 210 of the spark plug 200 is inserted into the extended portion 120 through the fastening hole 111 of the fixing portion 110.

Finally, the first fastening part 112 of the fixing part 110 and the second fastening part 230 of the spark plug 200 are fastened together. At this time, when the first fastening part 112 and the second fastening part 230 are screwed or bolted, the spark plug 200 is rotated clockwise or counterclockwise, To be caught in the latching hole. When the screw fastening or bolt fastening is performed, the spanner may be inserted into the grip portion 240 formed near the second fastening portion 230, and then the spark plug 200 may be coupled with the spanner in one direction.

On the other hand, when the spark plug 200 is separated from the fixture 100,

First, the first fastening part 112 of the fixing part 110 and the second fastening part 230 of the spark plug 200 are fastened together. At this time, disengagement of the first fastening part 112 and the second fastening part 230 rotates the spark plug 200 in one direction or releases the hook from the fastening hole. If the screw is fastened or bolted, the spanner may be inserted into the gripper 240, which is machined near the second fastening part 230, and then the spark plug 200 may be rotated in one direction with the spanner.

Then, the spark plug 200 is pulled out and separated from the fixed body 100.

As described above, those skilled in the art will appreciate that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is defined by the appended claims, rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and equivalents of the claims are to be construed as being included within the scope of the present invention do.

100: Fixed body
110:
111: fastening hole
112: first fastening portion
120: Extension
200: Spark plug
210: Housing
220: connection port
230: second fastening portion
240: Finger section.

Claims (4)

And a first fastening part 112 formed on the inner surface of the fastening hole 111. The first fastening part 112 is formed in the same number as the number of the electrode rods of the spark plug 200, A fixing part 110 formed in the shape of a cylinder and penetrating and fixing to the side wall of the combustion chamber;
An extension part 120 extending from one side of the fixing part 110 and passing through the fastening hole 111 to fix the electrode rod therein;
A housing 210 in which the electrode rod is fixed;
A connection port 220 fixed to one side of the housing 210 and connected to the ignition cable;
A second coupling part 230 formed on a part of the housing 210 or the connection port 220 and formed on one side of the spark plug 200 and fastened to the first coupling part 112;
A grip portion 240 cut into a plurality of pieces to fit a spanner on a part of the housing 210 or the connection port 220;
And an ignition plug detachably coupled to the ignition plug.
delete delete The method according to claim 1,
Wherein the first fastening portion (112) and the second fastening portion (230) are connected to each other by selecting one of a screw fastening, a bolt fastening, and a fastening with a hook and a fastening hole.

Images