KR20210014918A - Pulse type spark plug - Google Patents

Pulse type spark plug Download PDF

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Publication number
KR20210014918A
KR20210014918A KR1020190092975A KR20190092975A KR20210014918A KR 20210014918 A KR20210014918 A KR 20210014918A KR 1020190092975 A KR1020190092975 A KR 1020190092975A KR 20190092975 A KR20190092975 A KR 20190092975A KR 20210014918 A KR20210014918 A KR 20210014918A
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South Korea
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insulating
contact surface
housing
electrode member
shielding
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KR1020190092975A
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Korean (ko)
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KR102220484B1 (en
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안상근
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(주)고려엔지니어링
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T13/00—Sparking plugs
    • H01T13/02—Details
    • H01T13/08—Mounting, fixing or sealing of sparking plugs, e.g. in combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/26—Starting; Ignition
    • F02C7/264—Ignition
    • F02C7/266—Electric
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T13/00—Sparking plugs
    • H01T13/20—Sparking plugs characterised by features of the electrodes or insulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T13/00—Sparking plugs
    • H01T13/40—Sparking plugs structurally combined with other devices

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Spark Plugs (AREA)

Abstract

The present invention relates to a pulse-type ignition plug capable of easily and accurately performing combustion of an ignition fuel. According to the present invention, the pulse-type ignition plug includes: a front housing (100); an insulating member (200); a front electrode member (300); an electrode support member (400); an outer shielding member (500); an inner shielding member (600); a connection housing (700); a heat insulation member (800); a rear housing (900); a rear electrode member (1000); and a shielding member (1100).

Description

펄스타입 점화플러그{Pulse type spark plug}Pulse type spark plug

본 발명은 화력발전소의 가스터빈이나 보일러 버너를 가동시키기 위해 연료를 점화시키는 펄스타입 점화장치에 관한 것으로, 화력발전소의 가스터빈 또는 보일러 버너용 점화장치에 적용되는 점화플러그를 통한 점화연료(발전연료)의 연소시 발생되는 고온의 침투를 방지할 수 있는 펄스타입 점화플러그에 관한 것이다. The present invention relates to a pulse-type ignition device for igniting fuel to operate a gas turbine or a boiler burner of a thermal power plant, and an ignition fuel through an ignition plug applied to an ignition device for a gas turbine or a boiler burner of a thermal power plant. It relates to a pulse type spark plug that can prevent penetration of high temperature generated during combustion of ).

일반적으로, 화력발전의 전력 생산 시 가스터빈은 원동기로 사용하여 발전하는 방식으로 이 가스터빈을 고온 및 고압의 연소가스로 터빈을 가동시키도록 되어 있다. 또한 보일러 버너는 연료에 의한 화염으로 증기를 만들어 터빈을 가동시키도록 되어 있다. In general, when generating power in thermal power generation, the gas turbine is used as a prime mover to generate electricity, and the gas turbine is operated with combustion gas of high temperature and high pressure. In addition, boiler burners are designed to run turbines by making steam from flames from fuel.

전술한 가스터빈과 보일러 버너를 가동할 때 점화설비를 이용하게 되는데, 이 점화설비는 가스터빈이나 보일러 버너의 운전 중에 연소방법이 변경될 때 재 점화시키는 설비로서 주요 구성부품으로는 전원공급부, 점화케이블 및 점화플러그로 구성되어 있다. When operating the above-described gas turbine and boiler burner, an ignition facility is used. This ignition facility is a facility to re-ignite when the combustion method is changed during operation of the gas turbine or boiler burner. The main components include power supply and ignition. It is composed of cables and spark plugs.

이와 같은 점화장치는 가동 시 공급된 연료를 점화플러그로 점화시키는 역할을 하여 연소실(버너)에서 안정적인 연소를 하도록 도와주는바, 즉 전원공급부로부터 공급되는 전원이 점화케이블의 케이블을 매개로 인가되어 점화플러그에서 스파크를 일으켜 증기상태로 공급되는 경유, 중유, 대체연료유 또는 가스와 같은 연료를 점화시킨다. Such an ignition device serves to ignite the supplied fuel with an ignition plug when it is operated, thereby helping stable combustion in the combustion chamber (burner). That is, power supplied from the power supply is applied through the cable of the ignition cable to ignite it. A spark is created in the plug to ignite fuels such as diesel, heavy oil, alternative fuel oil or gas supplied in the vapor state.

따라서, 연소되는 점화연료의 폭발력(화력)을 이용하여 가스터빈의 회전축 동력으로 에너지를 변화시켜서 발전기를 통해 전력을 생산하게 된다. Therefore, by using the explosive power (thermal power) of the ignition fuel to be burned, the energy is changed to the power of the rotating shaft of the gas turbine to generate power through the generator.

그러나, 상기와 같은 역할을 수행하는 종래 가스터빈용 점화장치는 점화플러그를 통한 점화연료(발전연료)의 연소시 발생되는 고온이 침투되고 침투된 고온이 외부의 상온에 접촉됨에 따라 결로가 발생되는 문제점이 있다. However, in the conventional gas turbine ignition device that performs the above role, the high temperature generated when the ignition fuel (power generation fuel) is burned through the spark plug penetrates and condensation is generated as the penetration high temperature contacts the outside room temperature. There is a problem.

이러한, 결로 발생에 의해 가스터빈용 점화장치의 점화실패로 이어지고 점화실패에 의한 전력생산에 차질이 발생되어 원활한 전력공급이 이루어지지 못하는 문제점이 있다. Such condensation leads to ignition failure of the ignition device for gas turbines, and there is a problem in that power generation is disrupted due to the ignition failure, so that smooth power supply cannot be achieved.

본 발명의 배경기술은 등록특허 10-0585958(등록일2006.05.25.)호에 게재되어 있다. The background technology of the present invention is published in Registration Patent 10-0585958 (Registration Date 2006.05.25.).

본 발명이 해결하고자 하는 과제는, 화력발전소의 가스터빈 또는 보일러 버너용 점화장치에 적용되는 점화플러그를 통한 점화연료(발전연료)의 연소시 발생되는 고온의 침투를 방지할 수 있는 펄스타입 점화플러그를 제공하고자 하는 것이다. The problem to be solved by the present invention is a pulse type spark plug that can prevent penetration of high temperatures generated during combustion of ignition fuel (power generation fuel) through a spark plug applied to an ignition device for a gas turbine or a boiler burner of a thermal power plant. Is to provide.

본 발명의 일실시예에 따른 펄스타입 점화플러그는, 출력전압을 AC에서 DC로 변환시키면서 고압으로 승압시켜서 제공하여 펄스타입의 스파크를 발생시키는 펄스타입 점화플러그에 있어서, 내부공간이 양단으로 개방되는 전방하우징(100)과, 전방하우징(100)의 내부공간에 장착되고 내부공간이 양단으로 개방되는 절연부재(200)와, 절연부재(200)의 내부공간을 관통하여서 전방하우징(100)의 일단에 일단이 근접되는 전방전극부재(300)와, 전방전극부재(300)의 타단에 결합되어 절연부재(200)의 타단에 지지되는 전극지지부재(400)와, 절연부재(200)가 관통되는 상태로 전방하우징(100)의 타단에 삽입되어서 압착되어 절연부재(200)의 외측을 차폐하는 외측차폐부재(500)와, 전방전극부재(300)가 관통되는 상태로 절연부재(200)의 타단에 삽입되어서 압착되어 절연부재(200)의 내측을 차폐하는 내측차폐부재(600)와, 전방전극부재(300)를 커버하는 상태로 전방하우징(100)에 연결되는 연결하우징(700)과, 연결하우징(700)에 삽입된 상태로 연결하우징(700)의 내부를 단열하여 고온의 침투를 차단하는 단열부재(800)와, 연결하우징(700)에 연결되어 -전류가 인가되는 후방하우징(900)과, 전방전극부재(300)의 타단에 결합되어 +전류가 인가되는 후방전극부재(1000)와, 후방하우징(900)에 삽입된 상태로 후방하우징(900)의 내부를 차폐하여 결로의 침투를 차단하는 차폐부재(1100)를 포함하는 것을 특징으로 한다. In the pulse-type spark plug according to an embodiment of the present invention, in the pulse-type spark plug that generates a pulse-type spark by providing a high-pressure boost while converting an output voltage from AC to DC, the internal space is opened to both ends. The front housing 100, the insulating member 200 mounted in the inner space of the front housing 100 and open to both ends, and one end of the front housing 100 by penetrating the inner space of the insulating member 200 The front electrode member 300 having one end close to the front electrode member 300, the electrode support member 400 coupled to the other end of the front electrode member 300 and supported on the other end of the insulating member 200, and the insulating member 200 through The outer shielding member 500 which is inserted into the other end of the front housing 100 in a state and is compressed to shield the outside of the insulating member 200, and the other end of the insulating member 200 in a state through which the front electrode member 300 passes. An inner shielding member 600 that is inserted into and compressed to shield the inner side of the insulating member 200, and a connection housing 700 connected to the front housing 100 while covering the front electrode member 300, and A heat insulating member 800 that insulates the interior of the connection housing 700 while being inserted into the housing 700 to block high-temperature penetration, and a rear housing 900 connected to the connection housing 700 to which current is applied And, the rear electrode member 1000 coupled to the other end of the front electrode member 300 to which the + current is applied, and the rear housing 900 in a state inserted into the rear housing 900 are shielded to prevent the penetration of condensation. It characterized in that it comprises a shielding member (1100) to block.

바람직하게, 전방하우징(100)은 일단홀(110)에서 내부공간으로 연이어지는 내부접촉면(120)이 형성되고, 절연부재(200)는 일단에서 외주면에 전방하우징(100)의 내부접촉면(120)에 접촉되는 절연외부접촉면(210)이 형성되며, 일단에서 내주면에 전방전극부재(300)가 접촉되는 절연내부접촉면(240)이 형성되고, 전방전극부재(300)는 전방하우징(100)의 일단홀(110)에 위치되는 일단에 헤드가 형성되며, 헤드에는 절연부재(200)의 절연내부접촉면(240)에 접촉되는 외부접촉면(310)이 형성되는 것을 특징으로 한다. Preferably, the front housing 100 has an inner contact surface 120 connected from one end hole 110 to the inner space, and the insulating member 200 is an inner contact surface 120 of the front housing 100 on an outer peripheral surface at one end. An insulating outer contact surface 210 is formed in contact with, and an insulating inner contact surface 240 to which the front electrode member 300 is in contact is formed on the inner circumferential surface at one end, and the front electrode member 300 is formed at one end of the front housing 100. A head is formed at one end positioned in the hole 110, and an external contact surface 310 contacting the insulating inner contact surface 240 of the insulating member 200 is formed on the head.

바람직하게, 내부접촉면(120)은 테이퍼로 구성되고, 절연외부접촉면(210)은 내부접촉면(120)에 밀착되는 테이퍼로 구성되며, 외부접촉면(310)은 테이퍼로 구성되고, 절연내부접촉면(240)은 외부접촉면(310)에 밀착되는 테이퍼로 구성되는 것을 특징으로 한다. Preferably, the inner contact surface 120 is composed of a taper, the insulating outer contact surface 210 is composed of a taper in close contact with the inner contact surface 120, the outer contact surface 310 is composed of a taper, the insulating inner contact surface 240 ) Is characterized in that it is composed of a taper in close contact with the external contact surface (310).

바람직하게, 전방전극부재(300)의 타단에는 나사축이 형성되고, 전극지지부재(400)는 전방전극부재(300)의 나사축에 결합되는 너트로 구성되며, 전극지지부재(400)가 전방전극부재(300)의 나사축에 결합되면 전방전극부재(300)의 외부접촉면(310)이 절연부재(200)의 절연내부접촉면(240)에 밀착되는 것을 특징으로 한다. Preferably, a screw shaft is formed at the other end of the front electrode member 300, the electrode support member 400 is composed of a nut coupled to the screw shaft of the front electrode member 300, and the electrode support member 400 is front When coupled to the screw shaft of the electrode member 300, the outer contact surface 310 of the front electrode member 300 is in close contact with the insulating inner contact surface 240 of the insulating member 200.

바람직하게, 외측차폐부재(500)가 절연부재(200)의 외측단차(220)에 외측차폐부재(500)가 압착되어서 설치되면, 전방하우징(100)의 내부접촉면(120)에 절연부재(200)의 절연외부접촉면(210)이 밀착되는 것을 특징으로 한다. Preferably, when the outer shielding member 500 is installed by pressing the outer shielding member 500 to the outer step 220 of the insulating member 200, the insulating member 200 is formed on the inner contact surface 120 of the front housing 100. ) Of the insulating outer contact surface 210 is in close contact.

바람직하게, 절연부재(200)는 전방하우징(100) 일단 및 절연부재(200) 일단의 사이에 위치되는 일단에 전류를 유도하기 위한 저저항도체(230)가 코팅되는 것을 특징으로 한다. Preferably, the insulating member 200 is characterized in that a low resistance conductor 230 for inducing a current is coated on one end of the front housing 100 and one end positioned between one end of the insulating member 200.

바람직하게, 단열부재(800)는 후방전극부재(1000)가 관통된 상태로 연결하우징(700)의 내주면에 지지되어 연결하우징(700)의 내부로 침투하는 고온을 차단하는 다수의 단열블록(810)과, 후방전극부재(1000)가 관통된 상태로 단열블록(810)들에 양단이 지지되어 단열블록(810)들을 이격시켜서 단열블록(810)들의 사이에 단열을 위한 공기층이 형성되게 하는 다수의 단열관체(820)를 포함하는 것을 특징으로 한다. Preferably, the heat insulating member 800 is supported on the inner circumferential surface of the connection housing 700 in a state in which the rear electrode member 1000 is penetrated to block a high temperature penetrating into the interior of the connection housing 700. ), and the rear electrode member 1000 is supported at both ends of the insulation blocks 810 in a state through which the insulation blocks 810 are spaced apart so that an air layer for insulation is formed between the insulation blocks 810 It characterized in that it comprises a heat insulation tube body 820.

바람직하게, 차폐부재(1100)는 후방전극부재(1000)가 관통된 상태로 후방하우징(900)의 내주면에 밀착된 상태로 차폐하여 온도차에 의해 발생되는 결로의 침투를 차단하는 다수의 차폐블록(1110)과, 후방전극부재(1000)가 관통된 상태로 차폐블록(1110)들을 지지하여 밀착시키는 다수의 차폐관체(1120)를 포함하는 것을 특징으로 한다. Preferably, the shielding member 1100 is a plurality of shielding blocks that block the penetration of condensation caused by a temperature difference by shielding the rear electrode member 1000 in a state in which it is in close contact with the inner circumferential surface of the rear housing 900 ( 1110 and a plurality of shielding tube bodies 1120 that support and adhere to the shielding blocks 1110 in a state in which the rear electrode member 1000 penetrates.

본 발명은, 화력발전소의 가스터빈 또는 보일러 버너용 점화장치에 적용되는 점화플러그에서 펄스형태의 스파크가 발생되므로, 공급되는 경유, 중유, 대체연료유 또는 가스와 같은 점화연료의 연소가 용이하고 정확하게 이루어질 수 있다. In the present invention, since a spark in the form of a pulse is generated from a spark plug applied to an ignition device for a gas turbine or a boiler burner of a thermal power plant, the combustion of ignition fuel such as supplied diesel, heavy oil, alternative fuel oil or gas is easy and accurate. Can be done.

또한, 본 발명의 점화플러그에서 전방하우징의 내부접촉면에 절연부재의 절연외부접촉면이 밀착되므로 전방하우징 및 절연부재의 사이가 차폐되고, 전방전극부재의 외부접촉면이 절연부재의 절연내부접촉면에 밀착되므로 절연부재 및 전방전극부재의 사이도 차폐될 수 있어서, 절연부재의 일단을 통한 고온의 침투가 1차적으로 방지될 수 있다. In addition, in the spark plug of the present invention, since the insulating outer contact surface of the insulating member is in close contact with the inner contact surface of the front housing, the space between the front housing and the insulating member is shielded, and the outer contact surface of the front electrode member is in close contact with the insulating inner contact surface of the insulating member. Since the space between the insulating member and the front electrode member may also be shielded, penetration of high temperature through one end of the insulating member may be primarily prevented.

또한, 본 발명의 점화플러그에서 외측차폐부재가 절연부재의 외측 및 전방하우징의 내측의 사이에 압착되어 설치되므로 전방하우징 및 절연부재의 사이가 차폐되고, 내측차폐부재가 절연부재의 내측 및 전방전극부재의 외측의 사이에 압착되어 설치되므로 전방하우징 및 절연부재의 사이가 차폐될 수 있어서, 절연부재의 타단을 통한 고온의 침투가 2차적으로 방지될 수 있다. In addition, in the spark plug of the present invention, since the outer shielding member is compressed and installed between the outer side of the insulating member and the inner side of the front housing, the space between the front housing and the insulating member is shielded, and the inner shielding member is the inner and front electrodes of the insulating member. Since it is installed by being compressed between the outer sides of the member, the space between the front housing and the insulating member can be shielded, so that the penetration of high temperature through the other end of the insulating member can be prevented secondary.

또한, 본 발명의 점화플러그에서 연결하우징에 설치되는 단열부재에 의해 고온의 침투가 3차적으로 방지될 수 있고, 후방하우징에 설치되는 차폐부재에 의해 고온의 침투가 4차적으로 방지될 수 있다. In addition, in the spark plug of the present invention, high-temperature penetration may be thirdly prevented by the heat insulating member installed in the connecting housing, and the high-temperature penetration may be fourthly prevented by the shielding member installed in the rear housing.

또한, 본 발명의 점화플러그에서 단열부재가 세라믹재로 이루어지는 단열블록에 의해 열전달이 최소화될 수 있고, 단열부재가 내열고무재로 이루어지는 단열블록에 의해 차폐능력이 최대화될 수 있다. In addition, in the spark plug of the present invention, heat transfer can be minimized by an insulating block in which the insulating member is made of ceramic material, and the shielding ability can be maximized by the insulating block in which the insulating member is made of heat-resistant rubber material.

또한, 본 발명의 점화플러그에서 단열부재가 단열블록들의 간격을 유지시키면서 공기층이 형성되게 하여 온도전달이 최소화될 수 있다. In addition, in the spark plug of the present invention, an air layer is formed while the heat insulating member maintains the space between the heat insulating blocks, so that temperature transfer can be minimized.

이와 같이, 고온의 침투가 1차, 2차, 3차, 4차적으로 방지되므로 온도차에 의한 결로 발생이 방지될 수 있다. In this way, since the penetration of high temperature is first, second, third, and fourthly prevented, condensation due to a temperature difference can be prevented.

도 1은 본 발명의 일실시예에 따른 펄스타입 점화플러그를 보인 사시도.
도 2는 본 발명의 분해된 상태를 보인 분해사시도.
도 3는 본 발명의 분해된 상태를 보인 분해단면도.
도 4은 본 발명의 결합된 상태를 보인 단면도. 1 is a perspective view showing a pulse type spark plug according to an embodiment of the present invention.
Figure 2 is an exploded perspective view showing an exploded state of the present invention.
Figure 3 is an exploded cross-sectional view showing an exploded state of the present invention.
Figure 4 is a cross-sectional view showing a combined state of the present invention.

이하, 첨부된 도면을 참조하여 본 발명에 대하여 자세히 살펴본다. Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 1 내지 도 4에 도시된 바와 같이, 본 발명의 일실시예에 따른 펄스타입 점화플러그는, 출력전압을 AC에서 DC로 변환시키면서 고압으로 승압시켜서 제공하여 펄스타입의 스파크를 발생시키는 펄스타입 점화플러그에 관한 것으로, 내부공간이 양단으로 개방되는 전방하우징(100)과, 전방하우징(100)의 내부공간에 장착되고 내부공간이 양단으로 개방되는 절연부재(200)와, 절연부재(200)의 내부공간을 관통하여서 전방하우징(100)의 일단에 일단이 근접되는 전방전극부재(300)와, 전방전극부재(300)의 타단에 결합되어 절연부재(200)의 타단에 지지되는 전극지지부재(400)와, 절연부재(200)가 관통되는 상태로 전방하우징(100)의 타단에 삽입되어서 압착되어 절연부재(200)의 외측을 차폐하는 외측차폐부재(500)와, 전방전극부재(300)가 관통되는 상태로 절연부재(200)의 타단에 삽입되어서 압착되어 절연부재(200)의 내측을 차폐하는 내측차폐부재(600)와, 전방전극부재(300)를 커버하는 상태로 전방하우징(100)에 연결되는 연결하우징(700)과, 연결하우징(700)에 삽입된 상태로 연결하우징(700)의 내부를 단열하여 고온의 침투를 차단하는 단열부재(800)와, 연결하우징(700)에 연결되어 -전류가 인가되는 후방하우징(900)과, 전방전극부재(300)의 타단에 결합되어 +전류가 인가되는 후방전극부재(1000)와, 후방하우징(900)에 삽입된 상태로 후방하우징(900)의 내부를 차폐하여 결로의 침투를 차단하는 차폐부재(1100)를 포함한다. As shown in Figs. 1 to 4, the pulse type spark plug according to an embodiment of the present invention is a pulse type ignition that generates a pulse type spark by boosting the output voltage from AC to DC while boosting it to a high pressure. Regarding the plug, the front housing 100 with the inner space open to both ends, the insulating member 200 mounted in the inner space of the front housing 100 and open to both ends, and the insulating member 200 The front electrode member 300 that penetrates the internal space and has one end close to one end of the front housing 100, and an electrode support member coupled to the other end of the front electrode member 300 and supported on the other end of the insulating member 200 ( 400), an outer shielding member 500 that is inserted into the other end of the front housing 100 in a state through which the insulating member 200 is penetrated and compressed to shield the outside of the insulating member 200, and the front electrode member 300 The front housing 100 is inserted into the other end of the insulating member 200 in a penetrating state and is compressed to cover the inner shielding member 600 to shield the inner side of the insulating member 200 and the front electrode member 300. ) Connected to the connection housing 700, the insulation member 800 that insulates the interior of the connection housing 700 while being inserted into the connection housing 700 to block the penetration of high temperature, and the connection housing 700 Connected to the rear housing 900 to which current is applied, the rear electrode member 1000 to which + current is applied by being coupled to the other end of the front electrode member 300, and the rear housing in a state inserted into the rear housing 900 It includes a shielding member (1100) that shields the inside of 900 to block the penetration of condensation.

전방하우징(100)은 일단에 내부공간으로 연통되는 일단홀(110)이 형성되어 내장되는 전방전극부재(300)의 일단이 일단홀(110)을 통해 노출될 수 있다. 이때, 일단홀(110)의 내경이 전방전극부재(300) 일단의 직경보다 크게 형성되어 일단홀(110)의 내주면에 전방전극부재(300)의 외주면이 접촉되지 않으면서 근접된 상태가 유지될 수 있다. 이러한 상태에서 전방하우징(100)으로 -전류가 인가되면서 전방전극부재(300)에 +전류가 인가되면, 전방하우징(100)의 일단 및 전방전극부재(300)의 일단에서 스파크가 발생된다. 이때, 발생되는 스파크에 의해 가스터빈에 공급되는 경유나 가스와 같은 연료가 점화된다. The front housing 100 has one end hole 110 communicating with the internal space at one end, and one end of the embedded front electrode member 300 may be exposed through the one end hole 110. At this time, the inner diameter of the one end hole 110 is formed larger than the diameter of one end of the front electrode member 300 so that the close state is maintained without contacting the outer circumferential surface of the front electrode member 300 to the inner circumferential surface of the one end hole 110. I can. In this state, when a-current is applied to the front housing 100 and a + current is applied to the front electrode member 300, sparks are generated at one end of the front housing 100 and one end of the front electrode member 300. At this time, fuel such as diesel or gas supplied to the gas turbine is ignited by the generated spark.

그리고, 전방하우징(100)은 일단홀(110)에서 내부공간으로 연이어지는 내부접촉면(120)이 형성되고, 외주면에 고정지그(130)가 형성된다. 내부접촉면(120)은 전방하우징(100)의 내부공간에서 일단홀(110)을 향해 점점 좁혀지게 형성되는 테이퍼로 구성될 수 있다. 고정지그(130)는 플랜지형태로 형성되어 외측차폐부재(500)가 가압되어서 설치될 때 사용된 후에 제거된다. 그리고, 고정지그(130)는 제거됨에 따라 전방하우징(100)의 부피가 최소화될 수 있다. In addition, the front housing 100 has an inner contact surface 120 extending from one end hole 110 to the inner space, and a fixing jig 130 is formed on the outer circumferential surface. The inner contact surface 120 may be composed of a taper formed to be gradually narrowed toward the one end hole 110 in the inner space of the front housing 100. The fixing jig 130 is formed in a flange shape and is removed after being used when the outer shielding member 500 is pressed and installed. In addition, as the fixing jig 130 is removed, the volume of the front housing 100 may be minimized.

절연부재(200)는 전방하우징(100) 및 전방전극부재(300)의 사이에 위치되어 전방하우징(100)의 내주면에 고르게 지지되도록 원통형태로 형성되고, 전방전극부재(300) 전류의 도통을 방지하기 위해 세라믹과 같은 부도체로 구성될 수 있다. The insulating member 200 is positioned between the front housing 100 and the front electrode member 300 and formed in a cylindrical shape so that it is evenly supported on the inner circumferential surface of the front housing 100, and the front electrode member 300 prevents the conduction of current. In order to prevent it, it can be made of a non-conductor such as ceramic.

그리고, 절연부재(200)는 일단에 전방하우징(100)의 내부접촉면(120)에 접촉되는 절연외부접촉면(210)이 형성되고, 일단에서 내주면에 전방전극부재(300)가 접촉되는 절연내부접촉면(240)이 형성된다. 절연외부접촉면(210)은 절연부재(200)의 외측에서 끝단으로 갈수록 좁혀지는 테이퍼로 형성되고, 절연내부접촉면(240)은 절연부재(200)의 내측에서 끝단으로 갈수록 넓혀지는 테이퍼로 형성된다. In addition, the insulating member 200 has an insulating outer contact surface 210 in contact with the inner contact surface 120 of the front housing 100 at one end, and an insulating inner contact surface in which the front electrode member 300 contacts the inner peripheral surface at one end. 240 is formed. The insulating outer contact surface 210 is formed with a taper that narrows from the outer side of the insulating member 200 toward the end, and the insulating inner contact surface 240 is formed with a taper that increases from the inner side of the insulating member 200 toward the end.

또한, 절연부재(200)는 타단에서 외측에 외측차폐부재(500)가 압착되어서 설치되기 위한 외측단차(220)가 형성되고, 타단에서 내측에 내측차폐부재(600)가 압착되어서 설치되기 위한 내측단차(221)가 형성된다. In addition, the insulating member 200 has an outer step 220 for installation by pressing the outer shielding member 500 on the outside at the other end, and the inner shielding member 600 is crimped to the inside at the other end to be installed. A step 221 is formed.

여기서, 절연외부접촉면(210)은 절연부재(200)의 외측에서 일단을 향해 점점 좁혀지게 형성되는 테이퍼로 구성되고, 절연내부접촉면(240)은 절연부재(200)의 내측에서 일단을 향해 점점 넓혀지게 형성되는 테이퍼로 구성될 수 있다. 따라서, 절연부재(200)가 전방하우징(100)의 내부공간으로 용이하게 삽입될 수 있을 뿐만 아니라, 절연외부접촉면(210)이 내부접촉면(120)에 면 접촉되므로 절연부재(200) 및 전방하우징(100)의 사이에 간극이 형성되지 않는다. Here, the insulating outer contact surface 210 is composed of a taper formed to be gradually narrowed toward one end from the outside of the insulating member 200, and the insulating inner contact surface 240 is gradually widened toward one end from the inner side of the insulating member 200 It may be composed of a tapered formed. Therefore, the insulating member 200 can be easily inserted into the inner space of the front housing 100, and since the insulating outer contact surface 210 is in contact with the inner contact surface 120, the insulating member 200 and the front housing No gap is formed between (100).

이에 의해, 전방하우징(100)의 내부접촉면(120)에 절연부재(200)의 절연외부접촉면(210)이 밀착되므로 전방하우징(100) 및 절연부재(200)의 사이가 1차적으로 차폐되어 연료의 연소에 의해 발생되는 고온의 침투가 방지된다. Thereby, since the insulating outer contact surface 210 of the insulating member 200 is in close contact with the inner contact surface 120 of the front housing 100, the space between the front housing 100 and the insulating member 200 is primarily shielded, thereby reducing fuel consumption. The high temperature penetration caused by the combustion of is prevented.

또한, 절연부재(200)는 전방하우징(100) 일단 및 절연부재(200) 일단의 사이에 위치되는 일단에 전류를 유도하기 위한 저저항도체(230)가 코팅될 수 있다. 저저항도체(230)는 은, 동, 금, 알루미늄 등으로 구성될 수 있다. 이러한, 저저항도체(230)는 전방하우징(100) 및 전방전극부재(300)에 접촉된다. 따라서, 전방하우징(100)의 일단 및 전방전극부재(300) 일단의 사이에 접촉되는 저저항도체(230)에 의해 전류가 용이하게 유도되므로, 전방하우징(100) 일단 및 전방전극부재(300) 일단의 사이에서 펄스형태의 스파크가 용이하게 발생될 수 있다. In addition, the insulating member 200 may be coated with a low resistance conductor 230 for inducing a current at one end of the front housing 100 and one end positioned between one end of the insulating member 200. The low resistance conductor 230 may be made of silver, copper, gold, aluminum, or the like. The low resistance conductor 230 is in contact with the front housing 100 and the front electrode member 300. Therefore, since the current is easily induced by the low-resistance conductor 230 in contact between one end of the front housing 100 and one end of the front electrode member 300, the front housing 100 and one end of the front electrode member 300 A spark in the form of a pulse can be easily generated between one end.

전방전극부재(300)는 전방하우징(100)의 일단홀(110)에 위치되는 일단에 헤드가 형성되고, 타단에 후방전극부재(1000)에 결합되는 나사축이 형성된다. 헤드는 일단홀(110)의 내경보다 직은 직경으로 형성되어 외주면이 일단홀(110)의 내주면에 근접된다. 그리고, 헤드에는 절연부재(200)의 절연내부접촉면(240)에 접촉되는 외부접촉면(310)이 형성된다. The front electrode member 300 has a head formed at one end positioned in the one end hole 110 of the front housing 100, and a screw shaft coupled to the rear electrode member 1000 at the other end. The head is formed with a diameter that is straighter than the inner diameter of the one end hole 110 so that the outer circumferential surface approaches the inner circumferential surface of the one end hole 110. In addition, an outer contact surface 310 that contacts the insulating inner contact surface 240 of the insulating member 200 is formed on the head.

전극지지부재(400)는 전방전극부재(300)의 타단에 형성된 나사축에 결합되는 너트로 구성될 수 있다. 따라서, 절연부재(200)에 관통된 전방전극부재(300)의 나사축에 전극지지부재(400)인 너트가 결합된 상태로 절연부재(200)의 타단에 지지되면, 전방전극부재(300)의 헤드가 전방하우징(100)의 일단홀(110)에 근접된 상태가 견고하게 유지될 수 있다. 여기서, 전방전극부재(300)의 나사축은 결합되는 전극지지부재(400)를 관통하여 돌출된다. The electrode support member 400 may be composed of a nut coupled to a screw shaft formed at the other end of the front electrode member 300. Therefore, when the nut, which is the electrode support member 400, is coupled to the screw shaft of the front electrode member 300 through the insulating member 200 and is supported on the other end of the insulating member 200, the front electrode member 300 The state in which the head of the front housing 100 is close to the one end hole 110 of the front housing 100 may be firmly maintained. Here, the screw shaft of the front electrode member 300 protrudes through the electrode support member 400 to be coupled.

그리고, 전극지지부재(400)가 전방전극부재(300)의 나사축에 결합되면 전방전극부재(300)의 외부접촉면(310)이 절연부재(200)의 절연내부접촉면(240)에 밀착되므로, 절연부재(200) 및 전방전극부재(300)의 사이가 1차적으로 차폐되어 연료의 연소에 의해 발생되는 고온의 침투가 방지된다. In addition, when the electrode support member 400 is coupled to the screw shaft of the front electrode member 300, the outer contact surface 310 of the front electrode member 300 is in close contact with the insulating inner contact surface 240 of the insulating member 200, The insulating member 200 and the front electrode member 300 are primarily shielded from each other to prevent penetration of high temperature generated by combustion of fuel.

외측차폐부재(500)는 절연부재(200)가 관통되면서 전방하우징(100)의 내부공간에 삽입되어서 고정되는 동재질의 와셔로 구성될 수 있다. 이러한, 외측차폐부재(500)는 절연부재(200)의 외측단차(220)에 걸린 상태로 전방하우징(100)의 내부공간에 강제로 삽입되어서 압착된다. 이에 의해, 절연부재(200)가 전방하우징(100)에 내장된 상태가 견고하게 유지될 수 있을 뿐만 아니라, 전방하우징(100)의 내부접촉면(120)에 절연부재(200)의 절연외부접촉면(210)이 밀착되므로, 전방하우징(100) 및 절연부재(200)의 사이가 2차적으로 차폐되어 연료의 연소에 의해 발생되는 고온의 침투가 방지된다. The outer shielding member 500 may be composed of a washer made of a copper material that is inserted into the inner space of the front housing 100 and fixed while the insulating member 200 passes through it. The outer shielding member 500 is forcibly inserted into the inner space of the front housing 100 while being caught by the outer step 220 of the insulating member 200 and compressed. Accordingly, the state in which the insulating member 200 is embedded in the front housing 100 can be firmly maintained, and the insulating outer contact surface of the insulating member 200 on the inner contact surface 120 of the front housing 100 ( Since 210) is in close contact, the space between the front housing 100 and the insulating member 200 is secondarily shielded to prevent penetration of high temperatures generated by combustion of the fuel.

내측차폐부재(600)는 전방전극부재(300)이 관통되면서 절연부재(200)의 내부에 삽입되어서 고정되는 동재질의 와셔로 구성될 수 있다. 이러한, 내측차폐부재(600)는 절연부재(200)의 내측단차(221)에 걸린 상태로 가압됨에 따라 압착된다. 이에 의해, 전방전극부재(300)의 외측면 및 절연부재(200)의 외측면의 사이가 2차적으로 차폐되어 연료의 연소에 의해 발생되는 고온의 침투가 방지된다. The inner shielding member 600 may be formed of a washer made of a copper material that is inserted into the insulating member 200 and fixed while the front electrode member 300 passes therethrough. As such, the inner shielding member 600 is compressed as it is pressed while being caught in the inner step 221 of the insulating member 200. As a result, the gap between the outer surface of the front electrode member 300 and the outer surface of the insulating member 200 is secondarily shielded to prevent penetration of high temperature caused by combustion of fuel.

연결하우징(700)은 전방하우징(100)의 타단에 용접으로 연결되어서 일체화될 수 있다. 따라서, 연결하우징(700)이 전방하우징(100)에 용접으로 연결되면 밀폐성이 증대되므로 가스터빈의 내부에 위치되어도 연결하우징(700) 및 전방하우징(100)의 사이를 통해 고온 및 고압의 침투됨이 방지될 수 있다. The connection housing 700 may be connected to the other end of the front housing 100 by welding to be integrated. Therefore, when the connection housing 700 is connected to the front housing 100 by welding, the sealing property increases, so even if it is located inside the gas turbine, high temperature and high pressure penetrate through the connection housing 700 and the front housing 100 This can be prevented.

단열부재(800)는 후방전극부재(1000)가 관통된 상태로 연결하우징(700)의 내주면에 지지되어 연결하우징(700)의 내부로 침투하는 고온을 차단하는 다수의 단열블록(810)과, 후방전극부재(1000)가 관통된 상태로 단열블록(810)들에 양단이 지지되어 단열블록(810)들을 이격시켜서 단열블록(810)들의 사이에 단열을 위한 공기층이 형성되게 하는 다수의 단열관체(820)를 포함한다. The heat insulating member 800 is supported on the inner circumferential surface of the connection housing 700 in a state in which the rear electrode member 1000 is penetrated to block a high temperature penetrating into the interior of the connection housing 700, and A plurality of insulating pipes that are supported at both ends of the insulating blocks 810 with the rear electrode member 1000 penetrating therethrough to separate the insulating blocks 810 to form an air layer for insulating between the insulating blocks 810 Includes 820.

단열블록(810)은 원통형태로 형성되면서 고온에 강한 세라믹으로 구성되어 연결하우징(700)에 내장된 상태로 가스터빈의 내부에 위치되어 고온에 견디면서 고온의 침투를 차단시킬 수 있다. The insulating block 810 is formed in a cylindrical shape and is made of ceramic that is resistant to high temperatures, and is located inside the gas turbine while being embedded in the connection housing 700 to block high-temperature penetration while enduring high temperatures.

단열관체(820)는 단열블록(810)보다 작은 직경으로 구성되어 연결하우징(700)의 내부에 공기층이 형성되게 하므로 고온의 전달됨이 차단될 수 있다. Since the heat insulation tube body 820 has a diameter smaller than that of the heat insulation block 810 to form an air layer inside the connection housing 700, transmission of high temperature may be blocked.

이와 같이, 단열블록(810)에 의해 고온의 침투됨이 차단되고 단열관체(820)들에 의해 형성되는 공기층에 의해서도 고온의 침투됨이 차단되므로, 차단효과가 증대될 수 있다. In this way, since the penetration of high temperature is blocked by the heat insulating block 810 and the penetration of high temperature is also blocked by the air layer formed by the heat insulating tube 820, the blocking effect can be increased.

후방하우징(900)은 연결하우징(700)에 용접으로 연결되어서 일체화되는 상태로 가스터빈의 외측에 위치되면서 -측 전원이 인가된다. 그리고, 후방하우징(900)은 하부에서 내주면에 암나사산이 형성될 수 있다. 이러한, 후방하우징(900)은 외부의 상온에 노출될 수 있다. The rear housing 900 is connected to the connection housing 700 by welding and is located outside the gas turbine in an integrated state, and the negative power is applied. In addition, the rear housing 900 may have a female thread formed on the inner circumferential surface from the bottom. This, the rear housing 900 may be exposed to an external room temperature.

후방전극부재(1000)는 일단에 전방전극부재(300)의 나사축이 결합되는 나사홀이 형성되고, 타단에 후술되는 전극고정부재(1200)가 결합되는 나사축이 형성된다. 그리고, 전방전극부재(300)의 타단에 나사축이 형성되지 않은 경우 후방전극부재(1000)가 용접으로 연결될 수 있다. The rear electrode member 1000 has a screw hole at one end to which the screw shaft of the front electrode member 300 is coupled, and at the other end, a screw shaft to which the electrode fixing member 1200 to be described later is coupled is formed. In addition, when the screw shaft is not formed at the other end of the front electrode member 300, the rear electrode member 1000 may be connected by welding.

따라서, 후방전극부재(1000)가 전방전극부재(300)에 연결되어 도통되면서 일직선형태를 이루는 상태로 연결하우징(700)의 내부에 위치된다. Accordingly, the rear electrode member 1000 is connected to the front electrode member 300 and is connected to the front electrode member 300 and is positioned inside the connection housing 700 to form a straight line shape.

차폐부재(1100)는 후방전극부재(1000)가 관통된 상태로 후방하우징(900)의 내주면에 밀착된 상태로 차폐하여 온도차에 의해 발생되는 결로의 침투를 차단하는 다수의 차폐블록(1110)과, 후방전극부재(1000)가 관통된 상태로 차폐블록(1110)들을 지지하여 밀착시키는 다수의 차폐관체(1120)를 포함한다. The shielding member 1100 includes a plurality of shielding blocks 1110 that block the penetration of condensation caused by a temperature difference by shielding in a state in which the rear electrode member 1000 is penetrated and in close contact with the inner circumferential surface of the rear housing 900. , And a plurality of shielding tube bodies 1120 that support and adhere to the shielding blocks 1110 in a state in which the rear electrode member 1000 is penetrated.

차폐블록(1110)은 원통형태로 형성되면서 내열고무로 구성되어 관통되는 후방전극부재(1000)의 외주면이 밀착되면서 후방하우징(900)의 내주면에 밀착되므로, 고온의 침투가 차단될 뿐만 아니라 고온에 의해 팽창되는 공기의 유실됨이 방지될 수 있다. 이러한, 차폐블록(1110)들은 에폭시접착제에 의해 서로 연결될 수 있다. The shielding block 1110 is formed in a cylindrical shape and is composed of heat-resistant rubber, and the outer peripheral surface of the rear electrode member 1000 that penetrates through it is in close contact with the inner peripheral surface of the rear housing 900, so that not only high temperature penetration is blocked, but also high temperature By this, the loss of the expanded air can be prevented. These, the shielding blocks 1110 may be connected to each other by an epoxy adhesive.

차폐관체(1120)는 차폐블록(1110)보다 작은 직경으로 형성되면서 일단이 단열블록(810)에 지지되고 타단이 차폐블록(1110)에 지지된다. 차폐관체(1120)의 외측과 후방하우징(900) 내측의 사이에는 단열을 위한 공기층이 형성될 수 있다. 그리고, 차폐관체(1120)에 의해 차폐블록(1110)들이 밀착된 상태가 유지되어 고온이 차폐블록(1110)들을 연속적으로 침투하기 어려울 뿐만 아니라, 후방하우징(900)의 내측에서 고온과 상온의 온도차에 의해 발생되는 결로가 후방하우징(900)의 내측으로 침투을 방지할 수 있다. The shielding tube body 1120 is formed to have a diameter smaller than that of the shielding block 1110 and one end is supported by the insulating block 810 and the other end is supported by the shielding block 1110. An air layer for heat insulation may be formed between the outer side of the shielding tube 1120 and the inner side of the rear housing 900. In addition, since the shielding blocks 1110 are kept in close contact by the shielding tube 1120, it is difficult for the high temperature to continuously penetrate the shielding blocks 1110, as well as the temperature difference between high temperature and room temperature inside the rear housing 900. It is possible to prevent the condensation generated by the penetration into the inside of the rear housing (900).

그리고, 본 발명은 후방전극부재(1000)에 결합되어 차폐부재(1100)를 고정시키는 전극고정부재(1200)를 포함한다. In addition, the present invention includes an electrode fixing member 1200 that is coupled to the rear electrode member 1000 to fix the shielding member 1100.

전극고정부재(1200)는 후방전극부재(1000)의 나사축에 결합되는 너트로 구성될 수 있다. 이러한, 전극고정부재(1200)에 의해 전방전극부재(300)에 단열부재(800)가 설치되고 후방전극부재(1000)에 차폐부재(1100)가 설치된 상태가 견고하게 유지될 수 있다. The electrode fixing member 1200 may be composed of a nut coupled to the screw shaft of the rear electrode member 1000. The insulating member 800 is installed on the front electrode member 300 by the electrode fixing member 1200 and the shielding member 1100 is installed on the rear electrode member 1000 may be firmly maintained.

또한, 본 발명은 후방하우징(900)의 내측에 장착되어 차폐부재(1100)를 지지하면서 후방전극부재(1000)를 절연하는 후방절연부재(1300)를 포함한다. In addition, the present invention includes a rear insulating member 1300 that is mounted inside the rear housing 900 to support the shield member 1100 and insulate the rear electrode member 1000.

후방절연부재(1300)는 세라믹으로 제조되면서 후방절연부재(1300)가 삽입되도록 내부공간이 양단으로 개방되는 관체로 구성된다. 따라서, 후방하우징(900) 및 후방전극부재(1000)를 통해 입력되는 전원이 합선됨을 방지할 수 있다. The rear insulating member 1300 is made of ceramic and is composed of a tube body in which the inner space is opened at both ends so that the rear insulating member 1300 is inserted. Therefore, it is possible to prevent a short circuit of power input through the rear housing 900 and the rear electrode member 1000.

이와 같이, 구성되는 본 발명에 출력전압을 AC에서 DC로 변환시키면서 2,200V의 고압으로 승압시켜서 1초에 10회로 제공하면, 전방하우징(100)의 일단과 전방전극부재(300)의 헤드의 사이에서 펄스타입의 스파크가 1초에 10회로 형성되므로 분사되는 연료의 점화가 용이하게 이루어질 수 있다. In the present invention thus constituted, if the output voltage is converted from AC to DC and boosted to a high voltage of 2,200 V and provided 10 circuits per second, between one end of the front housing 100 and the head of the front electrode member 300 Since the pulse type spark is formed 10 times per second, ignition of the injected fuel can be easily performed.

이와 같은, 본 발명은 화력발전소의 가스터빈 또는 보일러 버너용 점화장치에 적용되는 점화플러그를 통한 점화연료(발전연료)의 연소시 발생되는 고온의 침투를 방지할 수 있으므로, 펄스타입 점화플러그에 적용되어서 널리 사용될 수 있는 매우 유용한 발명이라 할 수 있다. As such, the present invention can prevent penetration of high temperatures generated during combustion of ignition fuel (power generation fuel) through a spark plug applied to an ignition device for a gas turbine or a boiler burner of a thermal power plant, so it is applied to a pulse type spark plug. It can be said to be a very useful invention that can be used widely.

본 발명이 속하는 기술분야의 당업자는 본 발명이 그 기술적 사상이나 필수적 특징을 변경하지 않고서 다른 구체적인 형태로 실시될 수 있다는 것을 이해할 수 있을 것이다. 그러므로 이상에서 기술한 실시예는 모든 면에서 예시적인 것이며 한정적인 것이 아닌 것으로서 이해되어야 하고, 본 발명의 범위는 상세한 설명보다는 후술하는 청구범위에 의하여 나타내어지며, 청구범위의 의미 및 범위 그리고 그 등가개념으로부터 도출되는 모든 변경 또는 변형된 형태가 본 발명의 범위에 포함되는 것으로 해석되어야 한다.Those skilled in the art to which the present invention pertains will appreciate that the present invention can be implemented in other specific forms without changing the technical spirit or essential features thereof. Therefore, the embodiments described above should be understood as illustrative and non-limiting in all respects, and the scope of the present invention is indicated by the claims to be described later rather than the detailed description, and the meaning and scope of the claims and their equivalent concepts All changes or modified forms derived from it should be interpreted as being included in the scope of the present invention.

100 : 전방하우징 110 : 일단홀
120 : 내부접촉면 130 : 고정지그
200 : 절연부재 210 : 절연외부접촉면
220 : 외측단차 221 : 내측단차
230 : 저저항도체 240 : 절연내부접촉면
300 : 전방전극부재 310 : 외부접촉면
400 : 전극지지부재 500 : 외측차폐부재
600 : 내측차폐부재 700 : 연결하우징
800 : 단열부재 810 : 단열블록
820 : 단열관체 900 : 후방하우징
1000 : 후방전극부재 1100 : 차폐부재
1110 : 차폐블록 1120 : 차폐관체
1200 : 전극고정부재 1300 : 후방절연부재100: front housing 110: one end hole
120: inner contact surface 130: fixing jig
200: insulating member 210: insulating outer contact surface
220: outer step 221: inner step
230: low resistance conductor 240: insulating inner contact surface
300: front electrode member 310: external contact surface
400: electrode support member 500: outer shielding member
600: inner shielding member 700: connecting housing
800: insulation member 810: insulation block
820: insulation pipe 900: rear housing
1000: rear electrode member 1100: shield member
1110: shielding block 1120: shielding tube
1200: electrode fixing member 1300: rear insulating member

Claims (8)

출력전압을 AC에서 DC로 변환시키면서 고압으로 승압시켜서 제공하여 펄스타입의 스파크를 발생시키는 펄스타입 점화플러그에 있어서,
내부공간이 양단으로 개방되는 전방하우징(100)과,
전방하우징(100)의 내부공간에 장착되고 내부공간이 양단으로 개방되는 절연부재(200)와,
절연부재(200)의 내부공간을 관통하여서 전방하우징(100)의 일단에 일단이 근접되는 전방전극부재(300)와,
전방전극부재(300)의 타단에 결합되어 절연부재(200)의 타단에 지지되는 전극지지부재(400)와,
절연부재(200)가 관통되는 상태로 전방하우징(100)의 타단에 삽입되어서 압착되어 절연부재(200)의 외측을 차폐하는 외측차폐부재(500)와,
전방전극부재(300)가 관통되는 상태로 절연부재(200)의 타단에 삽입되어서 압착되어 절연부재(200)의 내측을 차폐하는 내측차폐부재(600)와,
전방전극부재(300)를 커버하는 상태로 전방하우징(100)에 연결되는 연결하우징(700)과,
연결하우징(700)에 삽입된 상태로 연결하우징(700)의 내부를 단열하여 고온의 침투를 차단하는 단열부재(800)와,
연결하우징(700)에 연결되어 -전류가 인가되는 후방하우징(900)과,
전방전극부재(300)의 타단에 결합되어 +전류가 인가되는 후방전극부재(1000)와,
후방하우징(900)에 삽입된 상태로 후방하우징(900)의 내부를 차폐하여 결로의 침투를 차단하는 차폐부재(1100)를 포함하는 것을 특징으로 하는 펄스타입 점화플러그.
In the pulse type spark plug that converts the output voltage from AC to DC and boosts it to high voltage to generate a pulse type spark,
The front housing 100 in which the internal space is opened to both ends,
An insulating member 200 mounted in the inner space of the front housing 100 and open to both ends of the inner space,
A front electrode member 300 having one end close to one end of the front housing 100 by penetrating the inner space of the insulating member 200,
An electrode support member 400 coupled to the other end of the front electrode member 300 and supported on the other end of the insulating member 200,
An outer shielding member 500 that is inserted into the other end of the front housing 100 in a state through which the insulating member 200 is penetrated and compressed to shield the outside of the insulating member 200,
An inner shielding member 600 that is inserted into the other end of the insulating member 200 in a state through which the front electrode member 300 is penetrated and compressed to shield the inner side of the insulating member 200,
A connection housing 700 connected to the front housing 100 while covering the front electrode member 300,
A heat insulating member 800 that insulates the inside of the connection housing 700 while being inserted into the connection housing 700 to block high-temperature penetration,
The rear housing 900 is connected to the connection housing 700 to which current is applied,
A rear electrode member 1000 coupled to the other end of the front electrode member 300 to which a + current is applied,
A pulse type spark plug comprising a shielding member 1100 that blocks the penetration of condensation by shielding the inside of the rear housing 900 while being inserted into the rear housing 900.
 청구항 1에 있어서, 전방하우징(100)은 일단홀(110)에서 내부공간으로 연이어지는 내부접촉면(120)이 형성되고,
절연부재(200)는 일단에서 외주면에 전방하우징(100)의 내부접촉면(120)에 접촉되는 절연외부접촉면(210)이 형성되며, 일단에서 내주면에 전방전극부재(300)가 접촉되는 절연내부접촉면(240)이 형성되고,
전방전극부재(300)는 전방하우징(100)의 일단홀(110)에 위치되는 일단에 헤드가 형성되며, 헤드에는 절연부재(200)의 절연내부접촉면(240)에 접촉되는 외부접촉면(310)이 형성되는 것을 특징으로 하는 펄스타입 점화플러그.
The method according to claim 1, wherein the front housing 100 is formed with an inner contact surface 120 extending from the one end hole 110 to the inner space,
The insulating member 200 has an insulating outer contact surface 210 that is in contact with the inner contact surface 120 of the front housing 100 on the outer circumferential surface at one end, and an insulating inner contact surface where the front electrode member 300 is in contact with the inner peripheral surface at one end. 240 is formed,
The front electrode member 300 has a head formed at one end positioned in the one end hole 110 of the front housing 100, and an external contact surface 310 contacting the insulating inner contact surface 240 of the insulating member 200 on the head Pulse type spark plug, characterized in that formed.
 청구항 2에 있어서,
내부접촉면(120)은 테이퍼로 구성되고,
절연외부접촉면(210)은 내부접촉면(120)에 밀착되는 테이퍼로 구성되며,
외부접촉면(310)은 테이퍼로 구성되고,
절연내부접촉면(240)은 외부접촉면(310)에 밀착되는 테이퍼로 구성되는 것을 특징으로 하는 펄스타입 점화플러그.
The method according to claim 2,
The inner contact surface 120 is composed of a taper,
The insulating outer contact surface 210 is composed of a taper in close contact with the inner contact surface 120,
The external contact surface 310 is composed of a taper,
Insulated inner contact surface 240 is a pulse type spark plug, characterized in that consisting of a taper in close contact with the outer contact surface (310).
 청구항 2에 있어서,
전방전극부재(300)의 타단에는 나사축이 형성되고,
전극지지부재(400)는 전방전극부재(300)의 나사축에 결합되는 너트로 구성되며,
전극지지부재(400)가 전방전극부재(300)의 나사축에 결합되면 전방전극부재(300)의 외부접촉면(310)이 절연부재(200)의 절연내부접촉면(240)에 밀착되는 것을 특징으로 하는 펄스타입 점화플러그.
The method according to claim 2,
A screw shaft is formed at the other end of the front electrode member 300,
The electrode support member 400 is composed of a nut coupled to the screw shaft of the front electrode member 300,
When the electrode support member 400 is coupled to the screw shaft of the front electrode member 300, the outer contact surface 310 of the front electrode member 300 is in close contact with the insulating inner contact surface 240 of the insulating member 200. Pulse type spark plug.
 청구항 2에 있어서, 외측차폐부재(500)가 절연부재(200)의 외측단차(220)에 외측차폐부재(500)가 압착되어서 설치되면, 전방하우징(100)의 내부접촉면(120)에 절연부재(200)의 절연외부접촉면(210)이 밀착되는 것을 특징으로 하는 펄스타입 점화플러그.
The insulating member according to claim 2, wherein when the outer shield member 500 is installed by pressing the outer shield member 500 to the outer step 220 of the insulating member 200, the inner contact surface 120 of the front housing 100 A pulse type spark plug, characterized in that the insulating external contact surface 210 of 200 is in close contact.
 청구항 1에 있어서, 절연부재(200)는 전방하우징(100) 일단 및 절연부재(200) 일단의 사이에 위치되는 일단에 전류를 유도하기 위한 저저항도체(230)가 코팅되는 것을 특징으로 하는 펄스타입 점화플러그.
The pulse according to claim 1, wherein the insulating member 200 is coated with a low-resistance conductor 230 for inducing current at one end positioned between one end of the front housing 100 and one end of the insulating member 200. Type spark plug.
 청구항 1에 있어서, 단열부재(800)는
후방전극부재(1000)가 관통된 상태로 연결하우징(700)의 내주면에 지지되어 연결하우징(700)의 내부로 침투하는 고온을 차단하는 다수의 단열블록(810)과,
후방전극부재(1000)가 관통된 상태로 단열블록(810)들에 양단이 지지되어 단열블록(810)들을 이격시켜서 단열블록(810)들의 사이에 단열을 위한 공기층이 형성되게 하는 다수의 단열관체(820)를 포함하는 것을 특징으로 하는 펄스타입 점화플러그.
The method according to claim 1, the heat insulating member 800
A plurality of insulating blocks 810 that are supported on the inner circumferential surface of the connection housing 700 in a state in which the rear electrode member 1000 is penetrated to block high temperatures penetrating into the connection housing 700,
A plurality of insulating pipes that are supported at both ends of the insulating blocks 810 with the rear electrode member 1000 penetrating therethrough to separate the insulating blocks 810 to form an air layer for insulating between the insulating blocks 810 Pulse type spark plug, characterized in that it comprises (820).
 청구항 1에 있어서, 차폐부재(1100)는
후방전극부재(1000)가 관통된 상태로 후방하우징(900)의 내주면에 밀착된 상태로 차폐하여 온도차에 의해 발생되는 결로의 침투를 차단하는 다수의 차폐블록(1110)과,
후방전극부재(1000)가 관통된 상태로 차폐블록(1110)들을 지지하여 밀착시키는 다수의 차폐관체(1120)를 포함하는 것을 특징으로 하는 펄스타입 점화플러그. The method according to claim 1, the shield member (1100)
A plurality of shielding blocks 1110 for blocking penetration of condensation caused by temperature difference by shielding in a state in which the rear electrode member 1000 is penetrated and in close contact with the inner circumferential surface of the rear housing 900,
A pulse type spark plug comprising a plurality of shielding tubes 1120 supporting and in close contact with the shielding blocks 1110 while the rear electrode member 1000 is penetrated.
KR1020190092975A 2019-07-31 2019-07-31 Pulse type spark plug KR102220484B1 (en)

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JP4360320B2 (en) * 2004-12-09 2009-11-11 株式会社デンソー Spark plug
JP2009236438A (en) * 2008-03-28 2009-10-15 Ngk Spark Plug Co Ltd Glow plug
KR101399107B1 (en) * 2013-12-24 2014-05-27 주식회사 대성엔지니어링 Apparatus for igniting for combustion
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KR102536365B1 (en) * 2022-06-30 2023-05-26 한국중부발전(주) Ignition apparatus for boiler burner of gas turbine

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