KR20220159152A - Gas injection device - Google Patents

Gas injection device Download PDF

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Publication number
KR20220159152A
KR20220159152A KR1020210067154A KR20210067154A KR20220159152A KR 20220159152 A KR20220159152 A KR 20220159152A KR 1020210067154 A KR1020210067154 A KR 1020210067154A KR 20210067154 A KR20210067154 A KR 20210067154A KR 20220159152 A KR20220159152 A KR 20220159152A
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KR
South Korea
Prior art keywords
fine adjustment
pressure
pressure fine
gas
hole
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KR1020210067154A
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Korean (ko)
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KR102554064B1 (en
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이정록
박창주
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한국전력공사
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Priority to KR1020210067154A priority Critical patent/KR102554064B1/en
Publication of KR20220159152A publication Critical patent/KR20220159152A/en
Priority to KR1020230087751A priority patent/KR102653624B1/en
Priority to KR1020230087750A priority patent/KR102653623B1/en
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Publication of KR102554064B1 publication Critical patent/KR102554064B1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • H02B13/055—Features relating to the gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • H02B13/065—Means for detecting or reacting to mechanical or electrical defects
    • H02B13/0655—Means for detecting or reacting to mechanical or electrical defects through monitoring changes of gas properties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0326—Valves electrically actuated

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

Disclosed is a gas injecting device. The disclosed gas injecting device comprises: a first pipe unit which is connected to a gas tank, and through which gas passes; a first pressure gauge which is mounted in the first pipe unit, and measures pressure of the gas tank; a body unit which is connected to the first pipe unit, and includes a passing hole unit through which the gas passes; a second pipe unit which is combined with a gas insulating switchgear, and is connected to the passing hole unit; a second pressure gauge which is mounted in a body unit, and measures pressure of the gas insulating switchgear; a solenoid valve which is mounted in the passing hole unit, and opens and closes the passing hole unit based on measured information of the second pressure gauge; and a controlling unit which receives a measured signal from the second pressure gauge, and closes the passing hole unit by operating the solenoid valve based on the measured signal. The present invention can prevent over-injection of gas.

Description

가스주입장치{GAS INJECTION DEVICE}Gas injection device {GAS INJECTION DEVICE}

본 발명은 가스주입장치에 관한 것으로서, 더욱 상세하게는, 가스의 과주입을 방지하는 가스주입장치에 관한 것이다.The present invention relates to a gas injection device, and more particularly, to a gas injection device for preventing excessive gas injection.

일반적으로, 가스 차단기(Gas Circuit Breaker) 혹은 가스절연개폐장치(GIS: Gas Insulated Switchgear)는 전기계통의 전원측과 부하측 간의 회로 사이에 설치되어 회로상에 지락이나 단락 등 이상전류가 발생하였을 때 전류를 안전하게 차단하여 전력계통 및 부하기기를 보호하는 전기기기로서 주로 초고압(High Voltage)용으로 사용된다. In general, a gas circuit breaker or a gas insulated switchgear (GIS) is installed between the circuit between the power side and the load side of the electrical system to block current when an abnormal current such as a ground fault or short circuit occurs on the circuit. It is an electrical device that protects the power system and load equipment by safely shutting off, and is mainly used for high voltage.

가스절연개폐장치에 SF6 GAS 등 가스를 주입시 가스주입장치를 사용한다. 그러나, 가스주입장치의 사용시 가스절연개폐장치의 압력계 이상 등과, 작업자 등의 부주의로 인해 가스 과주입으로 압력방출장치(Press Relief Device)의 동작 고장이 발생되는 2차 고장 발생의 우려가 있는 문제점이 있다. When injecting gas such as SF6 GAS into the gas insulated switchgear, use the gas injection device. However, when the gas injection device is used, there is a problem in that there is a possibility of a secondary failure in which the pressure gauge of the gas insulated switchgear is abnormal and the operation failure of the pressure relief device occurs due to gas overinjection due to negligence of the operator, etc. have.

또한, 가스누기 발생으로 인한 가스 보충시에 과다한 압력으로 가스를 주입하게 되는 경우, 가스탱크의 내부에 가스에 포함되는 이물질이 부유하여 고장으로 진전될 수 있으며, 압력방출장치 및 가스주입장치의 압력계가 아날로그 방식이여서 눈짐작으로 압력을 맞추어야 하는 문제점이 있다. 따라서, 이를 개선할 필요성이 요청된다.In addition, when gas is injected at an excessive pressure when replenishing gas due to gas leakage, foreign substances contained in the gas float inside the gas tank and may develop into a failure, and the pressure gauge of the pressure release device and the gas injection device may float. Since it is an analog method, there is a problem in that the pressure must be adjusted by eye guessing. Therefore, there is a need to improve this.

본 발명에 대한 배경기술은 대한민국 등록특허공보 제10-0980390호(발명의 명칭: 가스 절연 개폐장치의 가스 충전 구조, 등록일: 2010.08.31.)에 개시되어 있다.The background art for the present invention is disclosed in Republic of Korea Patent Registration No. 10-0980390 (Title of Invention: Gas Filling Structure of Gas Insulated Switchgear, Registration Date: 2010.08.31.).

본 발명은 상기와 같은 필요성에 의해 창출된 것으로서, 가스의 과주입을 방지하는 가스주입장치를 제공하는 데 그 목적이 있다.The present invention has been created by the above needs, and an object of the present invention is to provide a gas injection device that prevents excessive injection of gas.

상기한 목적을 달성하기 위하여 본 발명의 가스주입장치는: 가스탱크와 연결되고, 가스가 통과되는 제1관부; 상기 제1관부에 장착되고, 상기 가스탱크의 압력을 측정하는 제1압력계; 상기 제1관부와 연결되고, 가스가 통과되는 통과홀부를 구비하는 바디부; 가스절연개폐장치와 결합되고, 상기 통과홀부와 연결되는 제2관부; 상기 바디부에 장착되고, 상기 가스절연개폐장치의 압력을 측정하는 제2압력계; 상기 통과홀부 상에 장착되고, 상기 제2압력계의 측정정보를 토대로 상기 통과홀부를 개폐하도록 작동되는 솔레노이드밸브; 및 상기 제2압력계로부터 측정신호를 전달받고, 상기 측정신호를 토대로 상기 솔레노이드밸브를 작동시켜 상기 통과홀부를 폐쇄하도록 하는 제어부;를 포함하는 것을 특징으로 한다. In order to achieve the above object, a gas injection device of the present invention includes: a first pipe portion connected to a gas tank and through which gas passes; a first pressure gauge mounted on the first pipe part and measuring the pressure of the gas tank; a body portion connected to the first pipe portion and having a passage hole through which gas passes; A second pipe part coupled to the gas insulated switchgear and connected to the through hole part; a second pressure gauge mounted on the body and measuring the pressure of the gas insulated switchgear; a solenoid valve mounted on the through hole and operated to open and close the through hole based on measurement information of the second pressure gauge; and a controller configured to receive a measurement signal from the second pressure gauge and close the passage hole by operating the solenoid valve based on the measurement signal.

또한, 상기 제2관부에 장착되고, 상기 가스절연개폐장치의 가스가 상기 가스탱크 측으로 역류하는 것을 방지하는 체크밸브;를 더 포함하는 것을 특징으로 한다. In addition, it is characterized in that it further comprises a; check valve mounted on the second pipe portion, to prevent the gas of the gas insulated switchgear from flowing back toward the gas tank.

또한, 상기 바디부에 상기 통과홀부의 개방정도를 단계조절가능하게 장착되는 압력미세조절부;를 더 포함하는 것을 특징으로 한다. In addition, it is characterized in that it further comprises; a fine pressure control unit mounted to the body to be able to step-adjust the degree of opening of the passage hole.

또한, 상기 압력미세조절부는, 상기 바디부에 이동가능하게 결합되고, 상기 통과홀부의 개방정도를 조절하는 압력미세조절돌기부; 상기 바디부에 회전가능하게 결합되고, 상기 압력미세조절돌기부를 지지하며, 상기 압력미세조절돌기부를 가압하는 압력미세조절받침부; 상기 압력미세조절받침부에 회전가능하게 장착되는 압력미세조절걸쇠부; 및 상기 바디부에 결합되고, 상기 압력미세조절걸쇠부를 단계적으로 고정하여 상기 압력미세조절받침부의 가압상태를 유지하는 압력미세조절걸쇠고정부;를 포함하는 것을 특징으로 한다. In addition, the pressure fine adjustment unit may include a pressure fine adjustment protrusion movably coupled to the body and adjusting the opening degree of the passage hole; a pressure fine adjustment supporting portion rotatably coupled to the body, supporting the pressure fine adjustment projection, and pressurizing the pressure fine adjustment projection; a pressure fine adjustment latch rotatably mounted on the pressure fine adjustment supporting part; and a pressure fine adjustment clasp fixing portion coupled to the body portion and fixing the pressure fine adjustment clasp portion in stages to maintain a pressurized state of the pressure fine adjustment receiving portion.

또한, 상기 압력미세조절돌기부는, 상기 통과홀부 상에 위치되며, 상기 통과홀부를 폐쇄하는 볼; 상기 바디부에 이동가능하게 장착되며, 상기 압력미세조절받침부의 가압력에 의해 상기 볼을 밀어 상기 통과홀부를 개방하는 압력미세조절돌기; 및 상기 바디부에 장착되고, 상기 볼을 탄성지지하며, 상기 압력미세조절돌기의 가압 해제시 탄성복원력으로 상기 볼을 원위치로 복귀시키는 탄성부;를 포함하는 것을 특징으로 한다. In addition, the pressure fine adjustment protrusion is located on the through-hole portion, the ball for closing the through-hole portion; a pressure fine adjustment protrusion movably mounted on the body and opening the passage hole by pushing the ball by the pressure of the pressure fine adjustment support; and an elastic part mounted on the body, elastically supporting the ball, and returning the ball to its original position with an elastic restoring force when the pressure fine adjustment protrusion is released.

또한, 상기 압력미세조절받침부는 일단부가 상기 바디부에 힌지결합되고, 타단부가 회전가능한 것을 특징으로 한다. In addition, the pressure fine adjustment supporting portion is characterized in that one end is hinged to the body portion, the other end is rotatable.

또한, 상기 압력미세조절걸쇠고정부는, 상기 바디부에 결합되는 압력미세조절걸쇠고정프레임; 및 상기 압력미세조절걸쇠고정프레임에 복수개가 이격되게 결합되고, 복수개 중 어느 하나에 상기 압력미세조절걸쇠부가 걸리는 걸림블록;을 포함하는 것을 특징으로 한다. In addition, the pressure fine adjustment clasp fixing portion, the pressure fine adjustment clasp fixing frame coupled to the body portion; and a locking block coupled to the pressure fine adjustment latch fixing frame at a distance from each other, and the pressure fine adjustment latch part is caught on one of the plurality of blocks.

본 발명에 따른 가스주입장치는 가스절연개폐장치의 압력을 측정하는 제2압력계 및 솔레노이드밸브를 통해 가스절연개폐장치에 가스를 주입할 때 가스가 과주입되는 것이 방지될 수 있는 효과가 있다. The gas injection device according to the present invention has an effect of preventing excessive injection of gas when gas is injected into the gas insulated switchgear through the second pressure gauge and the solenoid valve for measuring the pressure of the gas insulated switchgear.

또한, 본 발명은 체크밸브를 통해 가스절연개폐장치의 가스가 가스탱크 측으로 역류하는 것을 방지하는 효과가 있다. In addition, the present invention has the effect of preventing the gas of the gas insulated switchgear from flowing back to the gas tank side through the check valve.

또한, 본 발명은 압력미세조절부를 통해 통과홀부의 개방정도를 단계조절하는 효과가 있다. In addition, the present invention has the effect of step-adjusting the degree of opening of the through hole through the pressure fine adjustment unit.

도 1은 본 발명의 일 실시예에 따른 가스주입장치를 대략적으로 나타낸 도면이다.
도 2는 본 발명의 일 실시예에 따른 가스주입장치의 단면도이다.
도 3은 본 발명의 일 실시예에 따른 가스주입장치의 통과홀부가 최대로 개방된 상태를 나타낸 도면이다.
도 4는 도 3의 요부 확대도이다.
도 5는 본 발명의 일 실시예에 따른 가스주입장치의 통과홀부가 최소로 개방된 상태를 나타낸 도면이다.
도 6은 도 5의 요부 확대도이다. 1 is a diagram schematically showing a gas injection device according to an embodiment of the present invention.
2 is a cross-sectional view of a gas injection device according to an embodiment of the present invention.
3 is a view showing a state in which the passage hole of the gas injection device according to an embodiment of the present invention is opened to the maximum.
FIG. 4 is an enlarged view of a main part of FIG. 3 .
5 is a view showing a state in which the passage hole of the gas injection device according to an embodiment of the present invention is opened to the minimum.
FIG. 6 is an enlarged view of a main part of FIG. 5 .

이하, 첨부된 도면들을 참조하여 본 발명의 일 실시예에 따른 가스주입장치를 설명하도록 한다.Hereinafter, a gas injection device according to an embodiment of the present invention will be described with reference to the accompanying drawings.

이 과정에서 도면에 도시된 선들의 두께나 구성요소의 크기 등은 설명의 명료성과 편의상 과장되게 도시되어 있을 수 있다. 또한, 후술되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로서 이는 사용자, 운용자의 의도 또는 관례에 따라 달라질 수 있다. 그러므로, 이러한 용어들에 대한 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것이다.In this process, the thickness of lines or the size of components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of a user or operator. Therefore, definitions of these terms will have to be made based on the content throughout this specification.

도 1은 본 발명의 일 실시예에 따른 가스주입장치를 대략적으로 나타낸 도면이고, 도 2는 본 발명의 일 실시예에 따른 가스주입장치의 단면도이고, 도 3은 본 발명의 일 실시예에 따른 가스주입장치의 통과홀부가 최대로 개방된 상태를 나타낸 도면이고, 도 4는 도 3의 요부 확대도이고, 도 5는 본 발명의 일 실시예에 따른 가스주입장치의 통과홀부가 최소로 개방된 상태를 나타낸 도면이고, 도 6은 도 5의 요부 확대도이다. 1 is a schematic diagram of a gas injection device according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of the gas injection device according to an embodiment of the present invention, and FIG. 3 is a view according to an embodiment of the present invention. It is a view showing a state in which the passage hole of the gas injection device is opened to the maximum, FIG. 4 is an enlarged view of the main part of FIG. 3, and FIG. It is a drawing showing the state, and FIG. 6 is an enlarged view of a main part of FIG. 5 .

도 1 내지 도 6을 참조하면, 본 발명의 일 실시예에 따른 가스주입장치(1)는 제1관부(100), 제1압력계(200), 바디부(300), 제2관부(400), 제2압력계(500), 솔레노이드밸브(600) 및 제어부(700)를 포함한다. 제1관부(100)는 가스탱크(10)와 연결되고, 가스가 통과된다. 제1관부(100)는 일단부가 가스탱크(10)와 연결되고, 타단부가 후술된 바디부(300)와 연결된다. 제1관부(100)에는 제1압력계(200)가 장착되고, 내부에 가스가 통과된다. 1 to 6, the gas injection device 1 according to an embodiment of the present invention includes a first pipe part 100, a first pressure gauge 200, a body part 300, and a second pipe part 400. , It includes a second pressure gauge 500, a solenoid valve 600 and a control unit 700. The first pipe part 100 is connected to the gas tank 10, and gas passes therethrough. The first pipe part 100 has one end connected to the gas tank 10 and the other end connected to the body part 300 described below. A first pressure gauge 200 is mounted on the first pipe part 100, and gas passes therein.

제1압력계(200)는 제1관부(100)에 장착되고, 가스탱크(10)의 압력을 측정한다. 제1압력계(200)는 디지털압력계로, 가스탱크(10)의 압력을 측정하여, 가스탱크(10)의 현재 압력상태를 나타낸다. 즉, 가스탱크(10)에 저장된 가스의 양을 측정할 수 있다. The first pressure gauge 200 is mounted on the first pipe part 100 and measures the pressure of the gas tank 10 . The first pressure gauge 200 is a digital pressure gauge, measures the pressure of the gas tank 10, and indicates the current pressure state of the gas tank 10. That is, the amount of gas stored in the gas tank 10 can be measured.

바디부(300)는 제1관부(100)와 연결되고, 가스가 통과되는 통과홀부(311)를 구비한다. 바디부(300)는 바디본체(310)와 바디연장부(320)를 포함한다. 바디본체(310)에는 통과홀부(311)가 형성된다. 통과홀부(311)는 제1통과홀부(311a)와 제2통과홀부(311b)를 포함한다. 제1통과홀부(311a)는 제1관부(100)와 연결된다. 제2통과홀부(311b)는 일단부가 제1통과홀부(311a)와 연결되고, 타단부가 후술된 제2관부(400)와 연결된다. 바디본체(310)에는 후술된 압력미세조절부(900)의 압력미세조절돌기부(910)가 장착된다. The body part 300 is connected to the first pipe part 100 and has a passage hole 311 through which gas passes. The body part 300 includes a body body 310 and a body extension part 320 . A through hole 311 is formed in the body body 310 . The through-hole part 311 includes a first through-hole part 311a and a second through-hole part 311b. The first through-hole portion 311a is connected to the first pipe portion 100 . The second through-hole portion 311b has one end connected to the first through-hole portion 311a and the other end connected to the second pipe portion 400 described below. A pressure fine adjustment protrusion 910 of the pressure fine adjustment unit 900 described below is mounted on the body body 310 .

바디연장부(320)는 바디본체(310)에서 연장형성되며, 후술된 압력미세조절부(900)가 장착된다. 바디연장부(320)는 제1연장프레임(321), 제2연장프레임(322) 및 제3연장프레임(323)을 포함한다. 제1연장프레임(321)은 바디본체(310)에서 일측으로 연장형성된다. 제2연장프레임(322)은 바디본체(310)에서 일측으로 연장형성되며, 제1연장프레임(321)과 이격되게 배치된다. 이때, 압력미세조절부(900)의 압력미세조절받침부(920)가 제1연장프레임(321)에 회전가능하게 장착된다. The body extension part 320 extends from the body body 310 and is equipped with a pressure fine adjustment part 900 described later. The body extension part 320 includes a first extension frame 321 , a second extension frame 322 and a third extension frame 323 . The first extension frame 321 extends from the body body 310 to one side. The second extension frame 322 extends from the body body 310 to one side and is spaced apart from the first extension frame 321 . At this time, the pressure fine adjustment support part 920 of the pressure fine adjustment part 900 is rotatably mounted on the first extension frame 321 .

제3연장프레임(323)은 제1연장프레임(321)과 제2연장프레임(322)을 연결하며, 압력미세조절부(900)의 압력미세조절걸쇠고정부(940)가 장착된다. The third extension frame 323 connects the first extension frame 321 and the second extension frame 322, and the pressure fine adjustment latch fixing part 940 of the pressure fine adjustment unit 900 is mounted.

제2관부(400)는 가스절연개폐장치(20)와 결합되고, 통과홀부(311)와 연결된다. 제2관부(400)는 일단부가 통과홀부(311)와 연결되고, 타단부가 가스절연개폐장치(20)와 연결된다. The second pipe portion 400 is coupled to the gas insulated switchgear 20 and connected to the through hole portion 311. The second pipe portion 400 has one end connected to the through hole 311 and the other end connected to the gas insulated switchgear 20.

구체적으로, 가스절연개폐장치(20)에 가스 주입시, 가스탱크(10)에 저장된 가스가 제1관부(100), 바디부(300)의 통과홀부(311) 및 제2관부(400)를 통과하여 가스절연개폐장치(20)로 주입된다. Specifically, when gas is injected into the gas insulated switchgear 20, the gas stored in the gas tank 10 passes through the first pipe portion 100, the passage hole portion 311 of the body portion 300, and the second pipe portion 400. It passes through and is injected into the gas insulated switchgear (20).

제2압력계(500)는 바디부(300)에 장착되고, 가스절연개폐장치(20)의 압력을 측정한다. 제2압력계(500)는 디지털압력계로, 가스절연개폐장치(20)의 압력을 측정하여, 가스절연개폐장치(20)의 현재 압력상태를 나타낸다. 즉, 가스절연개폐장치(20)로 주입되는 가스의 양을 측정할 수 있다. The second pressure gauge 500 is mounted on the body 300 and measures the pressure of the gas insulated switchgear 20 . The second pressure gauge 500 is a digital pressure gauge, measures the pressure of the gas insulated switchgear 20, and indicates the current pressure state of the gas insulated switchgear 20. That is, the amount of gas injected into the gas insulated switchgear 20 can be measured.

솔레노이드밸브(600)는 통과홀부(311) 상에 장착되고, 제2압력계(500)의 측정정보를 토대로 통과홀부(311)를 개폐하도록 작동된다. 솔레노이드밸브(600)는 통과홀부(311)의 통과홀부(311b)를 개폐하도록 작동된다. The solenoid valve 600 is mounted on the through hole portion 311 and operates to open and close the through hole portion 311 based on the measurement information of the second pressure gauge 500 . The solenoid valve 600 is operated to open and close the through-hole portion 311b of the through-hole portion 311 .

제어부(700)는 제2압력계(500)로부터 측정신호를 전달받고, 측정신호를 토대로 솔레노이드밸브(600)의 작동을 작동시켜 통과홀부(311)를 폐쇄하도록 작동시킨다. 이로 인해, 가스절연개폐장치(20)에 가스 주입시 가스가 과주입되는 것이 방지될 수 있다. The control unit 700 receives the measurement signal from the second pressure gauge 500 and operates the solenoid valve 600 to close the passage hole 311 based on the measurement signal. Due to this, when gas is injected into the gas insulated switchgear 20, excessive injection of gas can be prevented.

구체적으로, 작업자가 제2압력계(500)에 설정압력을 입력하고, 제2압력계(500)가 가스절연개폐장치(20)의 압력을 측정한 압력이 입력된 설정압력에 도달하면, 제2압력계(500)는 제어부(700)로 측정신호를 전달한다. 이와 같이, 제2압력계(500)에 측정된 압력이 입력된 설정압력에 도달되는 것은 가스가 가스절연개폐장치(20)로 과주입된다는 것을 의미한다. Specifically, when the operator inputs the set pressure to the second pressure gauge 500 and the pressure measured by the second pressure gauge 500 of the gas insulated switchgear 20 reaches the input set pressure, the second pressure gauge (500) transmits the measurement signal to the control unit (700). In this way, when the pressure measured by the second pressure gauge 500 reaches the input set pressure, it means that the gas is over-injected into the gas insulated switchgear 20 .

제어부(700)는 제2압력계(500)로부터 측정신호를 토대로 솔레노이드밸브(600)를 작동시켜 통과홀부(311)를 폐쇄하도록 한다. 이로써, 가스절연개폐장치(20)에 가스가 과주입되는 것을 막을 수 있다. 그 결과, 가스절연개폐장치(20)에 가스가 과주입되어 발생되는 파손 및 고장사고를 방지할 수 있다. The controller 700 operates the solenoid valve 600 based on the measurement signal from the second pressure gauge 500 to close the passage hole 311 . Thus, excessive injection of gas into the gas insulated switchgear 20 can be prevented. As a result, it is possible to prevent damage and malfunction caused by excessive injection of gas into the gas insulated switchgear 20 .

가스주입장치(1)는 체크밸브(800), 압력미세조절부(900)를 더 포함한다. 체크밸브(800)는 제2관부(400)에 장착되고, 가스절연개폐장치(20)의 가스가 가스탱크(10) 측으로 역류하는 것을 방지한다. 그 결과, 가스절연개폐장치(20)의 가스가 가스탱크(10) 측으로 역류하면서 발생되는 안전사고를 막을 수 있다. The gas injection device 1 further includes a check valve 800 and a fine pressure control unit 900. The check valve 800 is mounted on the second pipe part 400 and prevents the gas of the gas insulated switchgear 20 from flowing backward to the gas tank 10 side. As a result, safety accidents occurring while the gas of the gas insulated switchgear 20 flows backward toward the gas tank 10 can be prevented.

압력미세조절부(900)는 바디부(300)에 통과홀부(311)의 개방정도를 단계조절가능하게 장착된다. 압력미세조절부(900)는 압력미세조절돌기부(910), 압력미세조절받침부(920), 압력미세조절걸쇠부(930) 및 압력미세조절걸쇠고정부(940)를 포함한다. 압력미세조절돌기부(910)는 바디부(300)에 이동가능하게 결합되고, 통과홀부(311)의 개방정도를 조절한다. 압력미세조절돌기부(910)는 바디부(300)의 바디본체(310)에 이동가능하게 결합되며, 바디본체(310)에 구비된 통과홀부(311)의 폐쇄한 상태로 이동되는 양에 따라 통과홀부(311)의 개방정도를 조절할 수 있다.The pressure fine adjustment unit 900 is mounted on the body unit 300 so that the degree of opening of the passage hole unit 311 can be adjusted stepwise. The pressure fine adjustment unit 900 includes a pressure fine adjustment protrusion 910, a pressure fine adjustment support 920, a pressure fine adjustment clasp 930, and a pressure fine adjustment clasp fixing unit 940. The pressure fine adjustment protrusion 910 is movably coupled to the body 300 and controls the degree of opening of the through hole 311 . The pressure fine adjustment protrusion 910 is movably coupled to the body body 310 of the body portion 300, and passes according to the amount of movement of the through hole portion 311 provided in the body body 310 in a closed state. The degree of opening of the hole 311 can be adjusted.

압력미세조절받침부(920)는 바디부(300)에 회전가능하게 결합되고, 압력미세조절돌기부(910)를 지지하며, 압력미세조절돌기부(910)를 가압한다. 구체적으로, 압력미세조절받침부(920)는 바디부(300)의 바디연장부(320)에 회전가능하게 결합되고, 설정방향으로 회전되어 압력미세조절돌기부(910)를 가압하거나, 설정방향의 반대방향으로 회전되어 압력미세조절돌기부(910)의 가압을 해제한다. The pressure fine adjustment support 920 is rotatably coupled to the body 300, supports the pressure fine adjustment protrusion 910, and presses the pressure fine adjustment projection 910. Specifically, the pressure fine adjustment supporting portion 920 is rotatably coupled to the body extension 320 of the body portion 300, and is rotated in a setting direction to press the pressure fine adjustment protrusion 910 or in a setting direction. It is rotated in the opposite direction to release the pressure of the pressure fine adjustment protrusion 910 .

압력미세조절걸쇠부(930)는 압력미세조절받침부(920)에 회전가능하게 장착된다. 압력미세조절걸쇠부(930)는 압력미세조절받침부(920)의 측부에 시계 또는 반시계방향으로 회전가능하게 장착되며, 후술된 압력미세조절걸쇠고정부(940)에 걸려 고정될 수 있다. 이로 인해, 압력미세조절받침부(920)가 압력미세조절돌기부(910)를 가압한 상태가 유지될 수 있다. 즉, 통과홀부(311)의 개방상태가 지속적으로 유지될 수 있다. The pressure fine adjustment clasp 930 is rotatably mounted on the pressure fine adjustment support 920 . The pressure fine adjustment clasp 930 is rotatably mounted on the side of the pressure fine adjustment support 920 in a clockwise or counterclockwise direction, and may be caught and fixed by the pressure fine adjustment clasp fixing unit 940 described below. Due to this, a state in which the pressure fine adjustment support 920 presses the pressure fine adjustment protrusion 910 can be maintained. That is, the open state of the through hole 311 can be continuously maintained.

압력미세조절걸쇠고정부(940)는 바디부(300)에 결합되고, 압력미세조절걸쇠부(930)와 체결되며, 압력미세조절걸쇠부(930)를 단계적으로 고정하여 압력미세조절받침부(920)의 가압상태를 유지한다. The pressure fine adjustment clasp fixing part 940 is coupled to the body portion 300, and is engaged with the pressure fine adjustment clasp 930, and the pressure fine adjustment clasp 930 is fixed in stages to form a pressure fine adjustment receiving portion ( 920) is maintained.

압력미세조절돌기부(910)는 볼(911), 압력미세조절돌기(912) 및 탄성부(913)를 포함한다. 볼(911)은 통과홀부(311) 상에 위치되며, 통과홀부(311)를 폐쇄한다. The pressure fine adjustment protrusion 910 includes a ball 911, a pressure fine adjustment projection 912, and an elastic part 913. The ball 911 is positioned on the through hole 311 and closes the through hole 311 .

압력미세조절돌기(912)는 바디부(300)에 이동가능하게 장착되며, 압력미세조절받침부(920)의 가압력에 의해 볼(911)을 밀어 통과홀부(311)를 개방한다. 압력미세조절돌기(912)는 바디부(300)의 바디본체(310) 내부에 삽입된 상태로 이동되며, 압력미세조절받침부(920)의 가압력에 따라 볼(911)을 미는 힘이 달라지면서 통과홀부(311)의 개방정도를 조절할 수 있다. 압력미세조절받침부(920)의 가압력이 해제되면, 볼(911)을 미는 힘이 해제되면서 통과홀부(311)가 폐쇄된다. The pressure fine adjustment protrusion 912 is movably mounted on the body 300 and opens the passage hole 311 by pushing the ball 911 by the pressing force of the pressure fine adjustment support 920 . The pressure fine adjustment protrusion 912 is moved while being inserted into the body body 310 of the body 300, and the force pushing the ball 911 varies according to the pressing force of the pressure fine adjustment support 920. The degree of opening of the through hole 311 may be adjusted. When the pressing force of the pressure fine adjustment supporting part 920 is released, the through hole 311 is closed while the force pushing the ball 911 is released.

압력미세조절돌기(912)는 제1압력미세조절돌기(912a)와 제2압력미세조절돌기(912b)를 포함한다. 제1압력미세조절돌기(912a)는 압력미세조절받침부(920)에 의해 가압된다. 제2압력미세조절돌기(912b)는 제1압력미세조절돌기(912a)와 연결되고, 크기가 제1압력미세조절돌기(912a)의 크기와 작으며, 볼(911)을 민다.The pressure fine adjustment projection 912 includes a first pressure fine adjustment projection 912a and a second pressure fine adjustment projection 912b. The first pressure fine adjustment protrusion 912a is pressed by the pressure fine adjustment supporting part 920 . The second pressure fine adjustment projection 912b is connected to the first pressure fine adjustment projection 912a, has a size smaller than that of the first pressure fine adjustment projection 912a, and pushes the ball 911.

탄성부(913)는 바디부(300)에 장착되고, 볼(911)을 탄성지지하며, 압력미세조절돌기(912)의 가압 해제시 탄성복원력으로 볼(911)을 원위치로 복귀시킨다. 탄성부(913)는 코일스프링으로 볼(911)을 탄성지지한다. The elastic part 913 is mounted on the body part 300, elastically supports the ball 911, and returns the ball 911 to its original position with an elastic restoring force when the pressure fine adjustment protrusion 912 is released. The elastic part 913 elastically supports the ball 911 as a coil spring.

구체적으로, 압력미세조절받침부(920)의 가압력에 의해 압력미세조절돌기(912)가 볼(911)을 밀면, 탄성부(913)는 볼(911)에 의해 압축된다. Specifically, when the pressure fine adjustment protrusion 912 pushes the ball 911 by the pressing force of the pressure fine adjustment supporting part 920, the elastic part 913 is compressed by the ball 911.

이후, 압력미세조절받침부(920)의 가압력이 해제되면, 압력미세조절돌기(912)가 볼(911)을 밀지 않게 되고, 탄성부(913)는 탄성복원력에 의해 원상태로 복원되면서 볼(911)을 원위치로 복귀시킨다. 이에 따라, 볼(911)은 통과홀부(311)를 폐쇄하게 된다. Then, when the pressing force of the pressure fine adjustment supporting part 920 is released, the pressure fine adjustment protrusion 912 does not push the ball 911, and the elastic part 913 is restored to its original state by the elastic restoring force, and the ball 911 ) is returned to its original position. Accordingly, the ball 911 closes the passage hole 311 .

압력미세조절받침부(920)는 일단부가 바디부(300)에 힌지결합되고, 타단부가 회전가능하다. 압력미세조절받침부(920)는 바디부(300)의 제1연장프레임(321)에 힌지결합된다. One end of the pressure fine adjustment support 920 is hinged to the body 300 and the other end is rotatable. The pressure fine adjustment supporting part 920 is hinged to the first extension frame 321 of the body part 300 .

압력미세조절걸쇠고정부(940)는 압력미세조절걸쇠고정프레임(941)과 걸림블록(942)을 포함한다. 압력미세조절걸쇠고정프레임(941)은 바디부(300)에 결합된다. 압력미세조절걸쇠고정프레임(941)은 바디부(300)의 바디연장부(320)에 결합된다. 즉, 압력미세조절걸쇠고정프레임(941)은 바디연장부(320)의 제3연장프레임(323)에 결합되되, 압력미세조절받침부(920)와 마주보게 배치된다. The pressure fine adjustment clasp fixing part 940 includes a pressure fine adjustment clasp fixing frame 941 and a locking block 942 . The pressure fine adjustment clasp fixing frame 941 is coupled to the body portion 300. The pressure fine adjustment clasp fixing frame 941 is coupled to the body extension part 320 of the body part 300. That is, the pressure fine adjustment clasp fixing frame 941 is coupled to the third extension frame 323 of the body extension 320, and is disposed facing the pressure fine adjustment support 920.

걸림블록(942)은 압력미세조절걸쇠고정프레임(941)에 복수개가 이격되게 결합되고, 복수개 중 어느 하나에 압력미세조절걸쇠부(930)가 걸린다. 걸림블록(942)은 복수개로 압력미세조절걸쇠고정프레임(941)의 길이방향으로 이격되게 배치된다. A plurality of locking blocks 942 are coupled to the pressure fine adjustment latch fixing frame 941 spaced apart, and the pressure fine adjustment latch part 930 is caught on one of the plurality. A plurality of locking blocks 942 are disposed spaced apart in the longitudinal direction of the pressure fine adjustment clasp fixing frame 941 .

일 예로, 복수개의 걸림블록(942) 중 압력미세조절돌기부(910)와 가장 가까운 거리에 배치되는 걸림블록(942)에 압력미세조절걸쇠부(930)가 걸리는 경우, 압력미세조절받침부(920)가 압력미세조절돌기부(910)의 압력미세조절돌기(912)에 가하는 압력이 가장 크다. 즉, 압력미세조절돌기(912)가 볼(911)을 미는 힘이 가장 크며, 볼(911)의 이동량이 많아 통과홀부(311)가 개방되는 크기(L1)가 가장 클 수 있다(도 3, 4 참조). For example, when the pressure fine adjustment latch 930 is caught on the locking block 942 disposed closest to the pressure fine adjustment protrusion 910 among the plurality of locking blocks 942, the pressure fine adjustment support 920 ) has the greatest pressure applied to the pressure fine adjustment projection 912 of the pressure fine adjustment projection 910. That is, the force of the pressure fine adjustment protrusion 912 pushing the ball 911 is the greatest, and the amount of movement of the ball 911 is large, so the size (L1) at which the through hole 311 is opened may be the largest (FIG. 3, see 4).

다른 예로, 복수개의 걸림블록(942) 중 압력미세조절돌기부(910)와 가장 먼 거리에 배치되는 걸림블록(942)에 압력미세조절걸쇠부(930)가 걸리는 경우, 압력미세조절받침부(920)가 압력미세조절돌기부(910)의 압력미세조절돌기(912)에 가하는 압력이 가장 작다. 즉, 압력미세조절돌기(912)가 볼(911)을 미는 힘이 가장 작으며, 볼(911)의 이동량이 작아 통과홀부(311)가 개방되는 크기(L2)가 가장 작을 수 있다(도 5, 6 참조). As another example, when the pressure fine adjustment latch 930 is caught on the locking block 942 disposed at the furthest distance from the pressure fine adjustment protrusion 910 among the plurality of locking blocks 942, the pressure fine adjustment support 920 ) has the smallest pressure applied to the pressure fine adjustment projection 912 of the pressure fine adjustment projection 910. That is, the force of the pressure fine adjustment protrusion 912 pushing the ball 911 is the smallest, and the amount of movement of the ball 911 is small, so the opening size (L2) of the through hole 311 may be the smallest (FIG. 5 , see 6).

이와 같이, 상황에 따라 압력미세조절걸쇠부(930)를 압력미세조절걸쇠고정부(940)의 복수개의 걸림블록(942) 중 어느 하나에 걸어 고정하여, 압력미세조절받침부(920)가 압력미세조절돌기부(910)를 가압하는 가압력을 단계별로 조정하여 통과홀부(311)의 개방정도를 조절할 수 있다. In this way, depending on the situation, the pressure fine adjustment clasp 930 is hooked and fixed to any one of the plurality of locking blocks 942 of the pressure fine adjustment clasp fixing unit 940, so that the pressure fine adjustment support 920 The degree of opening of the through hole 311 may be adjusted by adjusting the pressing force for pressing the fine adjustment protrusion 910 step by step.

본 발명은 도면에 도시된 실시예를 참고로 하여 설명되었으나, 이는 예시적인 것에 불과하며, 당해 기술이 속하는 분야에서 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해할 것이다.The present invention has been described with reference to the embodiments shown in the drawings, but this is only exemplary, and those skilled in the art can make various modifications and equivalent other embodiments. will understand

따라서, 본 발명의 진정한 기술적 보호범위는 아래의 특허청구범위에 의해서 정하여져야 할 것이다.Therefore, the true technical protection scope of the present invention should be determined by the claims below.

1 : 가스주입장치 10 : 가스탱크
20 : 가스절연개폐장치 100: 제1관부
200 : 제1압력계 300 : 바디부
310 : 바디본체 311 : 통과홀부
311a : 제1통과홀부 311b : 제2통과홀부
320 : 바디연장부 321 : 제1연장프레임
322 : 제2연장프레임 323 : 제3연장프레임
400 : 제2관부 500 : 제2압력계
600 : 솔레노이드밸브 700 : 제어부
800 : 체크밸브 900 : 압력미세조절부
910 : 압력미세조절돌기부 911 : 볼
912 : 압력미세조절돌기 912a : 제1압력미세조절돌기
912b : 제2압력미세조절돌기 913 : 탄성부
920 : 압력미세조절받침부 930 : 압력미세조절걸쇠부
940 : 압력미세조절걸쇠고정부 941 : 압력미세조절걸쇠고정프레임
942 : 걸림블록1: gas injection device 10: gas tank
20: gas insulated switchgear 100: first pipe
200: first pressure gauge 300: body part
310: body body 311: through hole
311a: first through-hole portion 311b: second through-hole portion
320: body extension 321: first extension frame
322: second extension frame 323: third extension frame
400: second pipe part 500: second pressure gauge
600: solenoid valve 700: control unit
800: check valve 900: fine pressure control unit
910: pressure fine adjustment protrusion 911: ball
912: pressure fine adjustment projection 912a: first pressure fine adjustment projection
912b: second pressure fine adjustment protrusion 913: elastic part
920: pressure fine adjustment support 930: pressure fine adjustment clasp
940: pressure fine adjustment clasp fixing part 941: pressure fine adjustment clasp fixing frame
942: jamming block

Claims (7)

가스탱크와 연결되고, 가스가 통과되는 제1관부;
상기 제1관부에 장착되고, 상기 가스탱크의 압력을 측정하는 제1압력계;
상기 제1관부와 연결되고, 가스가 통과되는 통과홀부를 구비하는 바디부;
가스절연개폐장치와 결합되고, 상기 통과홀부와 연결되는 제2관부;
상기 바디부에 장착되고, 상기 가스절연개폐장치의 압력을 측정하는 제2압력계;
상기 통과홀부 상에 장착되고, 상기 제2압력계의 측정정보를 토대로 상기 통과홀부를 개폐하도록 작동되는 솔레노이드밸브; 및
상기 제2압력계로부터 측정신호를 전달받고, 상기 측정신호를 토대로 상기 솔레노이드밸브를 작동시켜 상기 통과홀부를 폐쇄하도록 하는 제어부;를 포함하는 것을 특징으로 하는 가스주입장치.
A first pipe part connected to the gas tank and through which gas passes;
a first pressure gauge mounted on the first pipe part and measuring the pressure of the gas tank;
a body portion connected to the first pipe portion and having a passage hole through which gas passes;
A second pipe part coupled to the gas insulated switchgear and connected to the through hole part;
a second pressure gauge mounted on the body and measuring the pressure of the gas insulated switchgear;
a solenoid valve mounted on the through hole and operated to open and close the through hole based on measurement information of the second pressure gauge; and
and a controller configured to receive a measurement signal from the second pressure gauge and to close the passage hole by operating the solenoid valve based on the measurement signal.
 제 1항에 있어서,
상기 제2관부에 장착되고, 상기 가스절연개폐장치의 가스가 상기 가스탱크 측으로 역류하는 것을 방지하는 체크밸브;를 더 포함하는 것을 특징으로 하는 가스주입장치.
According to claim 1,
The gas injection device further comprising a check valve mounted on the second pipe and preventing the gas of the gas insulated switchgear from flowing back toward the gas tank.
 제 1항에 있어서,
상기 바디부에 상기 통과홀부의 개방정도를 단계조절가능하게 장착되는 압력미세조절부;를 더 포함하는 것을 특징으로 하는 가스주입장치.
According to claim 1,
The gas injection device further comprises a pressure fine adjustment unit mounted on the body to be able to step-adjust the degree of opening of the passage hole.
 제 3항에 있어서,
상기 압력미세조절부는,
상기 바디부에 이동가능하게 결합되고, 상기 통과홀부의 개방정도를 조절하는 압력미세조절돌기부;
상기 바디부에 회전가능하게 결합되고, 상기 압력미세조절돌기부를 지지하며, 상기 압력미세조절돌기부를 가압하는 압력미세조절받침부;
상기 압력미세조절받침부에 회전가능하게 장착되는 압력미세조절걸쇠부; 및
상기 바디부에 결합되고, 상기 압력미세조절걸쇠부를 단계적으로 고정하여 상기 압력미세조절받침부의 가압상태를 유지하는 압력미세조절걸쇠고정부(940);를 포함하는 것을 특징으로 하는 가스주입장치.
According to claim 3,
The pressure fine adjustment unit,
a pressure fine adjustment protrusion movably coupled to the body and adjusting the degree of opening of the passage hole;
a pressure fine adjustment supporting portion rotatably coupled to the body, supporting the pressure fine adjustment projection, and pressurizing the pressure fine adjustment projection;
a pressure fine adjustment latch rotatably mounted on the pressure fine adjustment supporting part; and
A gas injection device comprising a; pressure fine adjustment latch fixing part (940) coupled to the body part and fixing the pressure fine adjustment latch part in stages to maintain a pressurized state of the pressure fine adjustment receiving part.
 제 4항에 있어서,
상기 압력미세조절돌기부는,
상기 통과홀부 상에 위치되며, 상기 통과홀부를 폐쇄하는 볼;
상기 바디부에 이동가능하게 장착되며, 상기 압력미세조절받침부의 가압력에 의해 상기 볼을 밀어 상기 통과홀부를 개방하는 압력미세조절돌기; 및
상기 바디부에 장착되고, 상기 볼을 탄성지지하며, 상기 압력미세조절돌기의 가압 해제시 탄성복원력으로 상기 볼을 원위치로 복귀시키는 탄성부;를 포함하는 것을 특징으로 하는 가스주입장치.
According to claim 4,
The pressure fine adjustment protrusion,
a ball positioned on the through-hole portion and closing the through-hole portion;
a pressure fine adjustment protrusion movably mounted on the body and opening the passage hole by pushing the ball by the pressure of the pressure fine adjustment support; and
and an elastic part mounted on the body, elastically supporting the ball, and returning the ball to its original position with an elastic restoring force when the pressure fine adjustment protrusion is released.
 제 5항에 있어서,
상기 압력미세조절받침부는 일단부가 상기 바디부에 힌지결합되고, 타단부가 회전가능한 것을 특징으로 하는 가스주입장치.
According to claim 5,
The gas injection device, characterized in that one end of the pressure fine adjustment support is hinged to the body and the other end is rotatable.
 제 6항에 있어서,
상기 압력미세조절걸쇠고정부는,
상기 바디부에 결합되는 압력미세조절걸쇠고정프레임; 및
상기 압력미세조절걸쇠고정프레임에 복수개가 이격되게 결합되고, 복수개 중 어느 하나에 상기 압력미세조절걸쇠부가 걸리는 걸림블록;을 포함하는 것을 특징으로 하는 가스주입장치.
According to claim 6,
The pressure fine adjustment clasp fixing part,
A pressure fine adjustment clasp fixing frame coupled to the body portion; and
A gas injection device comprising a plurality of locking blocks coupled to the pressure fine adjustment latch fixing frame at a distance from each other, and the pressure fine adjustment latch part being caught on one of the plurality of blocks.
KR1020210067154A 2021-05-25 2021-05-25 Gas injection device KR102554064B1 (en)

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Publication number Priority date Publication date Assignee Title
KR20100035498A (en) * 2008-09-26 2010-04-05 이호기술단(주) Portable type gas refill device for gas insulation circuit breaker of distribution line
KR20120039771A (en) * 2010-08-26 2012-04-26 한국전력공사 System for recovering or supplying gas having sf6 gas meter
KR20150046858A (en) * 2013-10-23 2015-05-04 대보전력기술 주식회사 Checking and repair system of sf6 gas machine
KR20150127810A (en) * 2011-05-12 2015-11-18 야마호고오교오가부시기가이샤 Lever type liquid injector
KR20170036272A (en) * 2015-09-24 2017-04-03 이파워텍(주) Pressure Measurement Apparatus of Load Break Switchgear
KR20170059035A (en) * 2015-11-19 2017-05-30 한국전력공사 Pressure regulating appartus, and apparatus and method for test of switch including the same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100035498A (en) * 2008-09-26 2010-04-05 이호기술단(주) Portable type gas refill device for gas insulation circuit breaker of distribution line
KR20120039771A (en) * 2010-08-26 2012-04-26 한국전력공사 System for recovering or supplying gas having sf6 gas meter
KR20150127810A (en) * 2011-05-12 2015-11-18 야마호고오교오가부시기가이샤 Lever type liquid injector
KR20150046858A (en) * 2013-10-23 2015-05-04 대보전력기술 주식회사 Checking and repair system of sf6 gas machine
KR20170036272A (en) * 2015-09-24 2017-04-03 이파워텍(주) Pressure Measurement Apparatus of Load Break Switchgear
KR20170059035A (en) * 2015-11-19 2017-05-30 한국전력공사 Pressure regulating appartus, and apparatus and method for test of switch including the same

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KR102653624B1 (en) 2024-04-03

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