KR102520679B1 - A Device for ignition using plasma - Google Patents

Abstract

The plasma ignition device of the present invention includes an ignition unit for generating plasma, a high voltage generation unit for applying voltage to the ignition unit, and a fluid supply unit connected to the ignition unit and supplying fluid for discharging the plasma to the outside. The ignition unit includes an opening formed at a front end to discharge the plasma, and a predetermined accommodation space is formed therein so that the fluid supplied from the fluid supply unit flows and is discharged to the front end. and a housing provided at a rear end of the housing and a fluid injection unit formed to receive fluid from the fluid supply unit.

Description

Plasma ignition device {A Device for ignition using plasma}

The present invention relates to a plasma ignition device, and more particularly, to a plasma ignition device having improved ignition stability by being mounted on a burner for operating a thermal power plant and allowing ignition to proceed based on plasma.

A thermal power plant generates high-temperature, high-pressure steam from heat obtained by burning coal, heavy oil, and natural gas, and generates electricity by operating a generator by rotating a steam turbine. Therefore, large boilers and gas turbines are usually installed in thermal power plants, and ignition devices for igniting natural gas, diesel, etc. are provided in the boilers and gas turbines.

Such an ignition device must be manufactured and used by reflecting the number of discharges in the design according to the type and composition of the fuel, otherwise ignition failure is highly likely to occur. In addition, if ignition failure occurs due to failure or damage of the ignition device, power supply failure due to failure of the corresponding equipment may occur, and system operation may be difficult to predict.

On the other hand, the spark plug that is connected to the above-mentioned ignition device to generate a spark is the area and / or volume (or size) of the (+) electrode portion located in the spark generating area, and the area and volume (or size) of the (-) electrode portion size) had a problem that the overall life of the spark plug was very short.

In addition, since the consumption rate of the opposing (+) electrode part and (-) electrode part due to spark generation proceeds more rapidly than in a high-temperature gas turbine, the overall life of the spark plug according to the prior art is very short. had no problems.

In particular, when sparks are generated while being inserted into an ignition furnace where ignition is in progress when using a conventional spark plug, the spark generated from the spark plug flows along the inner wall surface of the ignition furnace. A problem that often occurs and the ignition efficiency is lowered is also included.

In order to solve this problem, a plasma ignition device that generates plasma by applying a high voltage and proceeds with ignition through the plasma has been developed. However, there is still a problem in that the operation of the high voltage generator is intermittently stopped, making stable operation difficult.

KR 10-2014-0115831 A (2014.10.01) 'Plasma burner'

An object of the present invention is to provide a plasma ignition device that solves the above problems.

More specifically, a plasma ignition device capable of maintaining a more stable operating state by preventing the high voltage generator from being stopped due to high heat by more efficiently cooling the high voltage generator provided to apply the high voltage. Its purpose is to provide

In addition, a plasma ignition device capable of further improving ignition efficiency by generating plasma and injecting a high-pressure fluid toward the ignition furnace to expand the arrival direction of the plasma in the inward direction of the ignition furnace Provided aims to do

The plasma ignition device of the present invention includes an ignition unit for generating plasma, a high voltage generation unit for applying voltage to the ignition unit, and a fluid supply unit connected to the ignition unit and supplying fluid for discharging the plasma to the outside. The ignition unit includes an opening formed at a front end to discharge the plasma, and a predetermined accommodation space is formed therein so that the fluid supplied from the fluid supply unit flows and is discharged to the front end. and a housing provided at a rear end of the housing and a fluid injection unit formed to receive fluid from the fluid supply unit.

More specifically, the high voltage generating unit includes a case having a predetermined accommodating space therein, a voltage generating module accommodated in the case and provided to generate a voltage applied to the ignition unit, and the voltage and at least one pair of cooling means for discharging heat generated when the generating module is driven, wherein the cooling means are arranged in opposite directions with the voltage generating module interposed therebetween, and are identical to each other. It is characterized in that it is provided to cool the voltage generating module by moving the fluid in a direction or moving the fluid in a mutually opposite direction.

More specifically, the ignition unit is disposed at the front end of the housing, receives an electrode member for generating plasma by receiving a voltage from the high voltage generating unit, and is separated from the front end of the housing while accommodating the electrode member. It is characterized in that it includes a head portion having an open shape at both ends and an insulating portion provided to electrically separate the electrode member and the head portion while being accommodated in the housing.

More specifically, the head portion is characterized in that the fluid outlet side diameter of the head portion is smaller than or equal to the fluid inlet side diameter of the head portion.

More specifically, the electrode member is formed in front of the voltage application unit and the voltage application unit accommodated inside the insulating unit, and the outer circumferential surface is spaced apart from the inner wall surface of the head unit by a predetermined distance to form a predetermined separation space between them. and a plasma generating unit provided to form a discharge gap, which is a region in which discharge proceeds by narrowing the separation space, wherein a portion of the plasma generation unit has a shape thicker than both ends.

More specifically, the insulator includes a columnar first insulator accommodated inside the housing and provided to fix the electrode member, and provided in front of the first insulator to fix the electrode member. and a second insulator having a columnar shape in which at least one distribution hole is formed so that the fluid can pass therethrough.

More specifically, the first insulator is provided behind the second insulator and has a diameter smaller than that of the second insulator so as not to close a passage hole formed in the second insulator. to be

More specifically, the second insulator includes an accommodation hole formed to accommodate the electrode member, and at least one formed in the same direction as the extension direction of the accommodation hole, so that the fluid supplied from the fluid supply unit can flow. It is characterized in that it includes one or more distribution holes.

More specifically, the first insulator further comprises a first flow guide surface formed in front of the first insulator to guide the fluid toward a flow hole formed in the second insulator. .

More specifically, the second insulator includes an accommodation groove formed at a rear end of the second insulator and accommodating a portion of the front area of the first insulator, and a distribution hole formed in the second insulator toward the side. and a second flow guide surface formed on an inner circumferential surface of the accommodating groove and inclined toward the distribution hole to guide the fluid.

More specifically, the high voltage generating unit includes a cable member for transmitting voltage to the ignition unit, and the ignition unit is coupled to the high voltage generating unit to receive voltage from the high voltage generating unit. and further comprising a connector portion provided to be fastened to the cable member, wherein the connector portion includes at least one guide groove formed along an outer circumferential surface of the connector portion and provided to retain a spiral shape.

The plasma ignition device according to an embodiment of the present invention generates the voltage by allowing the high voltage generating unit to be cooled more efficiently through cooling means disposed to face each other with the voltage generating module interposed therebetween. It is possible to prevent the operation of the ignition device from being stopped due to the heating of the module, thereby providing an effect of securing more stable driving performance.

In addition, by providing a detachable head unit, when replacement of the electrode member or the insulation unit is required, only the head unit can be separated to perform maintenance work on the electrode member and the insulation unit more conveniently.

In addition, the fluid discharged through the head portion is formed to narrow the diameter of the fluid outlet side of the head portion so that the fluid discharged through the head portion can be concentrated and discharged, thereby providing an effect of extending the reach distance of the plasma.

In addition, it is possible to provide an effect of inducing more stable plasma generation through the electrode member by separately forming a discharge gap between the electrode member and the head unit.

In addition, through the second insulator in which the distribution hole is formed, it is possible to provide an effect of extending the reach of the plasma by smoothly proceeding the flow of the fluid while firmly fixing the electrode member.

In addition, the position of the electrode member is fixed in a state provided behind the second insulator, and the flow path of the fluid is prevented from being blocked by the first insulator provided to have a diameter smaller than the diameter of the second insulator. , It is possible to provide an effect of extending the reach of the plasma arc by proceeding with more smooth fluid discharge while firmly supporting the electrode member.

In addition, the flow path through which the fluid flows can be minimized by allowing the distribution hole to be formed in the same direction as the extension direction of the receiving hole, so that the fluid can be discharged to the outside more quickly. effect can be provided.

In addition, by forming the first flow guide surface, a larger amount of fluid can be discharged by concentrating toward the flow hole, thereby providing an effect of increasing the amount of fluid discharged.

In addition, by forming the second flow guide surface, a larger amount of fluid can be discharged by concentrating toward the flow hole, thereby providing an effect of increasing the amount of fluid discharged.

In addition, it is possible to more easily attach and detach from the cable member constituting the high voltage generating unit through the connector portion in which the guide groove having the spiral shape is formed, thereby providing improved convenience in use.

1 is an overall configuration diagram illustrating a plasma ignition device according to an embodiment of the present invention.
2 is a side cross-sectional view showing an assembled ignition unit constituting a plasma ignition device according to an embodiment of the present invention.
3 is a side cross-sectional view illustrating a state in which an ignition unit constituting a plasma ignition device according to an embodiment of the present invention is separated.
FIG. 4 is an enlarged view illustrating area A of FIG. 3 .
5 is a front view showing a second insulator of an ignition unit constituting a plasma ignition device according to an embodiment of the present invention from the front.
6 is a perspective view illustrating a high voltage generating unit constituting a plasma ignition device according to an embodiment of the present invention.
7 is a side view illustrating a right side of a high voltage generating unit constituting a plasma ignition device according to an embodiment of the present invention.
8 is a side view showing a left side of a high voltage generating unit constituting a plasma ignition device according to an embodiment of the present invention.

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below and can be implemented in various different forms, only these embodiments are intended to complete the disclosure of the present invention, and are common in the art to which the present invention belongs. It is provided to fully inform the knowledgeable person of the scope of the invention, and the invention is only defined by the scope of the claims.

Also, terms used in this specification are for describing the embodiments and are not intended to limit the present invention.

In this specification, singular forms also include plural forms unless specifically stated otherwise in a phrase. As used herein, "comprises" and/or "comprising" does not exclude the presence or addition of other components than the recited components.

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used in a meaning commonly understood by those of ordinary skill in the art to which the present invention belongs.

Hereinafter, the plasma ignition device of the present invention will be described in more detail with reference to the accompanying drawings.

First, with reference to FIG. 1, a plasma ignition device according to an embodiment of the present invention will be described.

1 is an overall configuration diagram illustrating a plasma ignition device according to an embodiment of the present invention.

As shown in FIG. 1 , the plasma ignition device of the present invention is characterized by including an ignition unit 100 , a high voltage generation unit 200 and a fluid supply unit 300 .

First, the ignition unit 100 is provided to generate plasma for ignition in a specific area by receiving a high voltage, and is provided to have a bar shape extending to a predetermined length.

The high voltage generating unit 200 is provided to generate a high voltage for generating the plasma in the ignition unit 100, and is electrically connected to the ignition unit 100, so that the ignition unit ( 100), it may be provided to include a voltage cable (C) in order to apply a high voltage.

And, the fluid supply unit 300 is connected to the ignition unit 100 and is provided to supply a fluid capable of extending the reach of the plasma. It may include various pump means capable of discharging by a predetermined reach distance.

At this time, it goes without saying that any one or more fluids selected from gas and liquid may be used in order to extend the reach distance of the plasma generated in the ignition unit 100 .

Additionally, the fluid supply unit 300 may include a fluid supply member F to supply the high-pressure fluid generated in the fluid supply unit 300 to the ignition unit 100 .

As described above, it is possible to provide an effect of further improving the ignition rate by preventing anchoring of plasma generated along the inner wall of the heating furnace by expanding the arrival point of the plasma by proceeding with the injection and discharge of the fluid.

Next, with reference to FIGS. 2 and 3 , the ignition unit 100 will be described in more detail.

2 is a side cross-sectional view showing an assembled ignition unit constituting a plasma ignition device according to an embodiment of the present invention.

3 is a side cross-sectional view illustrating a state in which an ignition unit constituting a plasma ignition device according to an embodiment of the present invention is separated.

As shown in FIG. 2, the ignition unit 100 of the present invention includes a housing 110, a fluid injection unit 120, an electrode member 130, a head unit 140, an insulation unit 150, and a connector unit. (160), a voltage transfer member (170) and a support member (180).

First, the housing 110 is characterized in that a predetermined accommodation space is formed therein so that the fluid supplied from the fluid supply unit 300 flows and is discharged to the front end.

At this time, as shown in FIG. 3 , the housing 110 may include a first housing 111 and a second housing 112 that are separably coupled to each other so as to be separable.

And, the fluid injection unit 120 is provided to inject the fluid generated from the fluid supply unit 300 into the housing 110, characterized in that it is formed at the rear end of the housing 110 do.

At this time, by minimizing the flow path of the fluid injected from the fluid injection unit 120, the injection hole formed in the fluid injection unit 120 is formed in the housing 110 so that the fluid can be discharged more quickly. It can be designed to be placed on the central axis of the receiving space.

Next, the electrode member 130 is provided to generate plasma by receiving voltage from the high voltage generating unit 200 .

More specifically, the electrode member 130 is disposed in a region adjacent to the front end of the second housing 112, that is, a position where the fluid flowing inside the housing is discharged, among the housing 110. to be

In addition, the head portion 140 is provided to accommodate the electrode member and is detachably fastened to the front end of the housing 110 .

At this time, by providing the detachable head portion 140, when replacement of the electrode member 130 or the insulating portion 150 is required, only the head portion 140 is separated to separate the electrode member 130 and the insulating portion. It is possible to provide an effect of more simply proceeding with the maintenance work for the (150).

More specifically, the head part 140 is characterized in that it is provided to have an opening with both ends open so that the fluid flowing inside the housing 110 can pass.

At this time, the opening formed on the head part 140 is formed on the central axis of the accommodation space formed inside the housing 110 so that the fluid flowing inside the housing 110 can be discharged at a higher speed. It can be designed to be placed.

That is, the opening may be disposed on the same line as the inlet of the fluid injection unit 120 described above.

Next, the insulating part 150 is provided to electrically separate the electrode member 130 and the head part 140, and is accommodated in the housing 110.

At this time, the insulating part 150 may perform a function of fixing the position of the electrode member 130, and details will be described in more detail with reference to FIG. 4 below.

Also, the connector part 160 is provided to receive voltage from the high voltage generating unit, and is provided to electrically connect the high voltage generating unit 200 to the connector part 160 .

More specifically, the connector part 160 is provided to be able to fasten with the cable member C. In order to proceed with simple fastening with the cable member C, at least one guide is provided on the connector part 160. A groove 161 may be formed.

In particular, at least one guide groove 161 is formed along the outer circumferential surface of the connector part, and is characterized in that it is provided to hold a spiral shape.

At this time, although not particularly shown in the drawing, a binding hole may be provided at an end of the connector part of the cable member C to proceed with the connection with the connector part, and the binding hole may be provided in the guide groove 161. At least one protrusion formed to be fastened may be formed, and a screw-type coupling between the binding sphere and the connector part 160 may be performed to perform more convenient coupling.

As such, through the connector part 160 in which the guide groove 161 having a spiral shape is formed, it is possible to more easily attach and detach from the cable member C constituting the high voltage generating unit, thereby providing more improved convenience of use. can do.

The voltage transfer member 170 is provided to transfer voltage to the above-described electrode member 130, and one end is connected to the connector part 160 and the other end is connected to the electrode member 130. It is characterized in that it is accommodated inside the housing 110 of the ignition unit 100 to provide the high voltage generated from the high voltage generating unit 200 to the electrode member 130.

In addition, the cable support member 180 is provided so that the position of the voltage transfer member 170 can be fixed inside the housing 110 of the ignition unit 100, and the cable support member 180 Through this, it is possible to fix the position of the voltage transfer member 170, thereby providing an effect of securing better assembly quality.

Next, with reference to FIG. 4 , the detailed configuration of the ignition unit 100 will be described in more detail.

FIG. 4 is an enlarged view illustrating area A of FIG. 3 .

As shown in FIG. 4, the ignition unit 100 constituting the plasma ignition device of the present invention is characterized in that it includes an electrode member 130, a head part 140, and an insulator part 150.

First, as described above, the electrode member 130 is provided to generate plasma in the head part 140 by receiving a voltage, and includes a voltage applying part 131 and a plasma generating part 132. .

At this time, the voltage applying unit 131 is connected to the above-described voltage transfer member to receive a voltage and provide the voltage to the plasma generating unit, and is provided to be accommodated inside the insulating unit 150 .

The plasma generating unit 132 is formed in front of the voltage applying unit, and has an outer circumferential surface spaced apart from the inner wall surface of the head unit by a predetermined distance to form a predetermined space to generate plasma.

More specifically, in order to form a discharge gap, which is a region in which discharge proceeds by narrowing the separation space, the thickness d2 of a partial region is provided to have a shape thicker than the thickness of both ends d1 and d3.

As described above, a discharge gap can be separately formed between the outer circumferential surface of the plasma generating unit 132 and the inner wall surface of the head unit 140, thereby providing an effect of inducing more stable plasma generation. .

In addition, the head part 140 is provided to accommodate the electrode member 130 and generate plasma, and at the same time, it is provided so that the fluid g can flow out, thereby reducing the reach distance of the plasma generated in the discharge gap. available to improve.

More specifically, the fluid outlet side diameter D2 of the head portion 140 may be formed to be smaller than or equal to the fluid inlet side diameter D1 of the head portion 140, and the head portion 140 It is possible to provide an effect of extending the reach distance of the plasma by forming the fluid outlet side diameter D2 to be narrow so that the fluid discharged through the head portion 140 can be concentrated and discharged.

The insulating part 150 is provided to electrically separate the electrode member 130 and the head part 140 so that discharge can proceed at a specific location.

At this time, the insulating part 150 may be provided to include the first insulator 151 and the second insulator 152 .

Here, the first insulator 151 is accommodated inside the housing and is provided to fix the electrode member 130 .

In addition, the first insulator 151 may have a pillar shape extending a predetermined length, and a receiving hole may be formed to accommodate the voltage application unit 131 of the electrode member 130 .

In particular, the first insulator 151 is provided behind the second insulator 152 to fix the position of the voltage applying unit 131 .

At this time, the first insulator 151 is characterized in that it is provided to have a smaller diameter than the diameter of the second insulator 152 so as not to close the distribution hole 152b formed in the second insulator 152. .

As described above, the first insulator 151 is provided on the rear side of the second insulator 152 and fixes the position of the voltage applying part 131, while the diameter of the second insulator 152 is smaller than the diameter of the second insulator 152. It is provided to have a small diameter to prevent the flow path of the fluid (g) from being closed, so that the voltage applying unit 131 is firmly supported, while the fluid (g) is discharged more smoothly. It is possible to provide an effect capable of extending the reach range of the plasma generated by the electrode member 130 .

In addition, the first insulator 151 may include a first flow guide surface 151a.

Here, the first flow guide surface 151a is provided to guide the fluid g toward the distribution hole 152b formed in the second insulator 152, Characterized in that it is formed along the front circumference.

In this case, the first flow guide surface 151a may be provided to have a shape inclined toward a central axis in the extending direction of the first insulator, and the first insulator 151 having the first flow guide surface 151a. The diameter of ) may be formed so as not to deviate from a range formed by an imaginary line that virtually connects the centers of the through holes 152b formed in the second insulator 152 to be described later.

In this way, through the formation of the first flow guide surface 151a, a larger amount of fluid g can be discharged by concentrating toward the flow hole, thereby increasing the amount of fluid g discharged. effect can be provided.

In addition, the second insulator 152 is provided in front of the first insulator 151, fixes the electrode member 130 and the first insulator, and supplies the aforementioned fluid g to the ignition unit ( 100) is provided so as to be discharged toward the outside.

At this time, the second insulator 152 is provided to have a columnar shape, and at least one distribution hole 152b is formed to allow the fluid g to pass therethrough.

More specifically, the second insulator 152 includes a receiving hole 152a and a distribution hole 152b.

First, the accommodating hole 152a is formed to accommodate the electrode member 130 .

The distribution hole 152b is formed so that the fluid g supplied from the fluid supply unit and flowing inside the housing can pass, in the same direction as the extending direction of the receiving hole 152a, that is, It is formed from the rear of the second insulator 152 toward the front.

In particular, at least one distribution hole 152b may be provided, and may be disposed while maintaining equal intervals from each other around the receiving hole 152a.

The arrangement structure of the distribution hole 152b will be described in more detail with reference to FIG. 5 to be described later.

As such, while firmly fixing the electrode member 130 through the second insulator 152 in which the distribution hole 152b is formed, the flow of the fluid g proceeds smoothly to expand the reach of the plasma. possible effects can be provided.

In addition, the flow path through which the fluid g flows can be minimized by allowing the distribution hole 152b to be formed in the same direction as the extension direction of the receiving hole 152a, so that more rapid It is possible to provide an effect capable of discharging the fluid (g) to the outside.

And, the second insulator 152 is characterized in that it includes a receiving groove (152c) and the second flow guide surface (152d).

First, the accommodating groove 152c is formed at the rear end of the second insulator and accommodates a portion of the front portion of the first insulator.

At this time, the accommodating groove 152c is concave from the rear toward the front, and is formed so that the front end of the first insulator 151 can be partially accommodated.

That is, through the formation of the receiving groove 152c, the fluid g flowing inside the housing can be concentrated to the inside of the second insulator 152, so that a larger amount of fluid g can be stored. It can be provided to the plasma generating unit 132 side.

And, the second flow guide surface 152d is formed to guide the fluid g toward the distribution hole 152b formed in the second insulator 152 .

More specifically, the second flow guide surface 152d is formed along the inner circumferential surface of the receiving groove 152c and slopes toward the distribution hole 152b at the rear end of the second insulator 152. Characterized in that it is formed to have a photographic shape.

As such, through the formation of the second flow guide surface 152d, a larger amount of fluid g can be concentrated and discharged toward the distribution hole 152b, thereby increasing the amount of fluid g discharged. possible effects can be provided.

Next, with reference to FIG. 5, the above-described second insulator will be described in more detail.

5 is a front view showing a second insulator of an ignition unit constituting a plasma ignition device according to an embodiment of the present invention from the front.

As shown in FIG. 5 , the second insulator 152 includes a receiving hole 152a and a distribution hole 152b.

First, the accommodating hole 152a is formed to accommodate the electrode member and penetrates the center of the second insulator 152 in the extending direction.

Also, the distribution hole 152b is formed to allow the fluid supplied from the fluid supply unit to flow, and at least one is formed in the same direction as the extending direction of the receiving hole 152a.

At this time, the distribution hole 152b may be formed such that the center of the distribution hole 152b is disposed at a position spaced apart by a predetermined distance (l) from the center of the receiving hole 152a. ) is formed, the distance l between the center of one of the plurality of distribution holes 152b and the center of the receiving hole 152a is the distance l between the center of the other distribution hole and the receiving hole 152a. The distance between the centers of may be formed to be the same as each other.

That is, the plurality of distribution holes may be arranged at equal intervals and at equal angles.

Next, a high voltage generating unit constituting a plasma ignition device according to an embodiment of the present invention will be described in more detail with reference to FIGS. 6 to 8 .

6 is a perspective view illustrating a high voltage generating unit constituting a plasma ignition device according to an embodiment of the present invention, and FIG. 7 is a right side view of a high voltage generating unit constituting a plasma ignition device according to an embodiment of the present invention. This is a side view, and FIG. 8 is a side view showing a left side of a high voltage generating unit constituting a plasma ignition device according to an embodiment of the present invention.

As shown in FIGS. 6 to 8 , the high voltage generating unit 200 includes a case 210, a voltage generating module 220, a cooling unit 230, and a controller 240.

First, the case 210 has a predetermined accommodation space for accommodating the voltage generating module 220, the cooling means 230, and the control unit 240 described above is formed therein.

The voltage generation module 220 is provided to generate a voltage applied to the ignition unit, and is accommodated in the case.

Next, the cooling means 230 is provided to discharge heat generated when the voltage generating module 220 is driven.

In addition, in order to improve the cooling efficiency of the voltage generation module 220 through the cooling means 230, at least one pair is provided inside the case.

In particular, the cooling unit 230 is characterized in that it is arranged to face each other with the voltage generation module 220 interposed therebetween.

At this time, the cooling unit 230 may include a first cooling unit 231 and a second cooling unit 232, and in a state with the voltage generation module 220 interposed therebetween, the first cooling unit ( 231) and the second cooling unit 232 are disposed facing each other.

Also, when the cooling unit 230 is driven, the voltage generation module may be cooled by moving the fluid in the same direction or moving the fluid in opposite directions.

More specifically, the outside air is sucked in from the first cooling means 231 and discharged to the second cooling means 232, or outside air is sucked from the second cooling means 232 to cool the first cooling means. It can be operated to discharge the air inside the case 210 to the 231 side.

In addition, the first cooling means 231 and the second cooling means 232 can be operated to discharge the air inside the case 210 at the same time, conversely, the first cooling means 231 and the second cooling means It goes without saying that means 232 can be operated to suck in outside air at the same time.

As described above, the voltage generation module 220 can be cooled more efficiently through the cooling means 220 arranged to face each other with the voltage generation module 220 interposed therebetween, It is possible to prevent the operation of the ignition device from being stopped due to the heating of the voltage generation module 220, thereby providing an effect of securing more stable driving performance.

Next, the control unit 240 controls the operation of the voltage generation module 220 to control plasma generation in the above-described ignition unit, and is communicatively connected to the voltage generation module 220. , It is provided to generate a control signal capable of controlling the number of plasma generation in the ignition unit.

More specifically, the control signal may include a control command for generating the plasma as many times as the number of discharges per predetermined unit time, and the control unit 240 may set the unit time and the number of discharges as desired by the user. .

As described above, the present invention has been described with reference to the embodiments shown in the drawings, but this is only for explaining the present invention, and those skilled in the art to which the present invention belongs may make various modifications or equivalents from the detailed description of the present invention. It will be appreciated that one embodiment is possible.

Therefore, the true scope of the present invention should be determined by the technical spirit of the claims.

1000: plasma ignition device
100: ignition unit
110: housing
111: first housing
112: second housing
120: fluid injection unit
130: electrode member
131: voltage application unit
132: plasma generating unit
140: head part
150: insulation
151: first insulator
151a: first flow guide surface
152: second insulator
152a: receiving hole
152b: distributor
152c: receiving groove
152d: second flow guide surface
160: connector part
161: guide groove
170: voltage transfer member
180: support member
200: high voltage generating unit
210: case
220: voltage generation module
230: cooling means
231: first cooling means
232: second cooling means
300: fluid supply unit
C: voltage cable
F: fluid supply member
g : fluid

Claims (11)

an ignition unit 100 generating plasma;
a high voltage generating unit 200 for applying a voltage to the ignition unit; and
A fluid supply unit 300 connected to the ignition unit to supply fluid for discharging the plasma to the outside;
The ignition unit 100 includes an opening formed to discharge the plasma at the front end, and a housing having a predetermined accommodation space formed therein so that the fluid supplied from the fluid supply unit can flow and be discharged to the front end. (110) and; a fluid injection unit 120 provided at a rear end of the housing and configured to receive fluid from the fluid supply unit; an electrode member 130 disposed at a front end of the housing and receiving a voltage from the high voltage generating unit to generate plasma; a head portion 140 that accommodates the electrode member, is detachably fastened to the front end of the housing, and has an open shape at both ends; And an insulating part 150 provided to electrically separate the electrode member and the head part while being accommodated in the housing; includes,
The insulator 150 includes a columnar first insulator 151 accommodated inside the housing and provided to fix the electrode member; and a columnar second insulator 152 provided in front of the first insulator, provided to fix the electrode member, and formed with at least one distribution hole through which the fluid passes,
The second insulator 152 includes a receiving hole 152a formed to accommodate the electrode member; and at least one distribution hole (152b) formed to allow the fluid supplied from the fluid supply unit to flow, and formed in the same direction as the extending direction of the receiving hole. According to claim 1,
The high voltage generating unit 200,
Case 210 in which a predetermined accommodation space is formed therein;
a voltage generating module 220 accommodated inside the case and provided to generate a voltage applied to the ignition unit; and
Including; at least one pair of cooling means 230 provided to dissipate heat generated when the voltage generating module is driven;
The cooling means 230,
It is provided to be disposed in opposite directions with the voltage generating module interposed therebetween, and is provided to cool the voltage generating module by moving the fluid in the same direction or moving the fluid in mutually opposite directions. Plasma ignition device with. delete According to claim 1,
The head part 140,
Plasma ignition device, characterized in that the fluid outlet side diameter of the head portion is smaller than or equal to the fluid inlet side diameter of the head portion. According to claim 1,
The electrode member 130,
a voltage applying unit 131 accommodated inside the insulating unit; and
A plasma generating unit 132 formed in front of the voltage applying unit and having an outer circumferential surface spaced apart from the inner wall surface of the head unit by a predetermined distance to form a predetermined separation space between them;
The plasma generating unit 132,
Plasma ignition device, characterized in that provided to have a shape thicker than both ends to form a discharge gap, which is a region in which discharge proceeds by narrowing the separation space. delete According to claim 1,
The first insulator 151,
Plasma ignition device characterized in that it is provided at the rear of the second insulator 152 and has a smaller diameter than the diameter of the second insulator 152 so as not to close the through hole formed in the second insulator . delete According to claim 1,
The first insulator 151,
Plasma ignition device further comprising a first flow guide surface (151a) formed in front of the first insulator to guide the fluid toward the flow hole formed in the second insulator (152). According to claim 1,
The second insulator 152,
an accommodating groove 152c formed at a rear end of the second insulator and accommodating a portion of the front area of the first insulator; and
a second flow guide surface 152d formed on an inner circumferential surface of the accommodating groove and inclined toward the distribution hole to guide the fluid toward the distribution hole formed in the second insulator; Plasma ignition device comprising a. According to claim 1,
The high voltage generating unit,
Including; a cable member (C) for transmitting voltage to the ignition unit side,
The ignition unit is
A connector part 160 coupled to the high voltage generating unit to receive voltage from the high voltage generating unit and coupled to the cable member;
the connector part,
Plasma ignition apparatus comprising: a guide groove (161) formed along an outer circumferential surface of the connector part and provided to hold a spiral shape.

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