KR20240019967A - Gas plugger for prevention of overpressures - Google Patents

Gas plugger for prevention of overpressures Download PDF

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Publication number
KR20240019967A
KR20240019967A KR1020220097812A KR20220097812A KR20240019967A KR 20240019967 A KR20240019967 A KR 20240019967A KR 1020220097812 A KR1020220097812 A KR 1020220097812A KR 20220097812 A KR20220097812 A KR 20220097812A KR 20240019967 A KR20240019967 A KR 20240019967A
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South Korea
Prior art keywords
gas
valve body
port
overpressure prevention
inlet
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KR1020220097812A
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Korean (ko)
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허영필
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허영필
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Priority to KR1020220097812A priority Critical patent/KR20240019967A/en
Publication of KR20240019967A publication Critical patent/KR20240019967A/en

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    • 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
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/02—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with liquefied gases
    • 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
    • F17C2205/0329—Valves manually actuated
    • 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
    • F17C2205/0332—Safety valves or pressure relief 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
    • 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
    • F17C2205/0335—Check-valves or non-return 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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/035—Propane butane, e.g. LPG, GPL

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

Abstract

본 발명은 과충전압 방지용 가스충전구에 관한 것으로서, 가스를 주입하기 위해 연결되는 충전몸체와, 상기 충전몸체에 결합된 밸브몸체와, 상기 밸브몸체 내에 삽입된 볼밸브체와, 상기 볼밸브체에 연결된 개폐손잡이와, 상기 밸브몸체와 결합된 주입구를 포함하는 가스충전구에 있어서, 상기 주입구와 볼밸브체 사이에 설치되어 밸브몸체와 충전몸체 사이에 잔류하는 가스를 주입구 방향으로는 흐르게 하지만, 상기 주입구의 반대반향으로는 흐르지 못하도록 제한한 과압방지구를 더 포함한 것이며, 가스충전구를 통해 LPG 저장탱크에 가스를 주입하고 난 후 상기 가스충전구 내에 잔류하고 있던 일부의 가스가 조금의 압력 상승으로도 과압방지구에 의해 주입구 쪽으로 흘러 다시 LPG 저장탱크 내로 주입되는 효과가 있다.The present invention relates to a gas charging port for preventing overcharge pressure, comprising a charging body connected to inject gas, a valve body coupled to the charging body, a ball valve body inserted into the valve body, and the ball valve body. In the gas filling port including a connected opening/closing handle and an inlet coupled to the valve body, it is installed between the inlet and the ball valve body to allow the gas remaining between the valve body and the filling body to flow in the direction of the inlet. It further includes an overpressure prevention port that restricts the flow in the opposite direction of the injection port, and after injecting gas into the LPG storage tank through the gas charging port, some of the gas remaining in the gas charging port is released due to a slight increase in pressure. This has the effect of flowing toward the injection port through the overpressure prevention port and injecting it back into the LPG storage tank.

Description

과충전압 방지용 가스충전구{Gas plugger for prevention of overpressures}Gas plugger for prevention of overpressures}

본 발명은 과충전압 방지용 가스충전구에 관한 것으로서, 상세히는 가스충천구 내에 잔류하는 가스로 인한 과한 압력을 주입구 방향으로만 원활하게 흐르도록 볼밸브체 주입구 사이에 과압방지구를 설치한 과충전압 방지용 가스충전구에 관한 것이다.The present invention relates to a gas filling port for preventing overcharge pressure, and more specifically, to a gas filling port for preventing overcharge pressure in which an overpressure prevention port is installed between the ball valve inlets so that excessive pressure caused by gas remaining in the gas filling port flows smoothly only in the direction of the inlet. It's about gas filling ports.

일반적으로 LPG는 가연성이 매우 크기 때문에 폭발의 위험성이 높고, 따라서 이러한 LPG를 저장하는 탱크는 그 취급 및 설치시 항상 세심한 주의가 필요할 뿐만 아니라 엄격한 기밀시험을 거쳐 승인된 규격의 탱크에 저장할 수 있도록 규제하고 있다.In general, LPG is very flammable, so there is a high risk of explosion. Therefore, tanks storing such LPG not only require careful attention at all times during handling and installation, but are also regulated so that they can be stored in tanks of approved specifications after undergoing strict airtightness tests. I'm doing it.

소형 LPG 저장탱크는 LPG를 사용하기 위한 저장탱크로서, 저장능력 3톤 미만인 것을 지칭하며 벌크용기(Bulk cylinder)라고도 하며, 이러한 소형 LPG 저장탱크는 보통의 LPG 용기보다 안전성과 안정적인 공급면에서 유리하기 때문에 그 수요가 점차 증가하고 있다.A small LPG storage tank is a storage tank for using LPG. It refers to a storage tank with a storage capacity of less than 3 tons and is also called a bulk cylinder. These small LPG storage tanks are more advantageous than ordinary LPG containers in terms of safety and stable supply. Therefore, the demand is gradually increasing.

이와 같은 소형 LPG 저장탱크는 저장탱크, 기화기, 가스펌프, 부대배관 시설 등을 프레임 구조물 위에 조립하여 완제품으로 판매하는 가스저장 및 공급 시스템이다.This small LPG storage tank is a gas storage and supply system that assembles a storage tank, vaporizer, gas pump, and auxiliary piping facilities on a frame structure and sells it as a finished product.

특히, 위와 같은 소형 LPG 저장탱크는 폭발의 위험을 안고 있는 특성상 안전밸브의 채용을 의무화하고 있으며, 주기적인 점검 등을 통해 LPG의 취급과 관련한 안전성을 확보하고 있다.In particular, the small LPG storage tanks mentioned above are required to use safety valves due to the risk of explosion, and the safety of handling LPG is ensured through periodic inspection.

그러나 기존 소형 LPG 저장탱크의 안전밸브의 경우 저장탱크 내의 압력이 유사시에 설정압력 이상이 될 때 저장탱크 내의 가스를 안전하게 배출할 뿐, 배출 후 설정압력 이하로 되면 안전밸브가 자동으로 차단되어야 하나, 상기 안전밸브가 고장이 나는 등의 비상시에 계속해서 배출되는 가스를 차단할 방법이 없어, 가스를 차단하기 위한 볼밸브를 상기 안전밸브와는 별도로 설치하고 있다.However, in the case of the safety valve of an existing small LPG storage tank, the gas in the storage tank is safely discharged when the pressure within the storage tank exceeds the set pressure in an emergency. If the pressure falls below the set pressure after discharge, the safety valve should be automatically shut off. Since there is no way to block the gas that is continuously discharged in an emergency, such as when the safety valve breaks down, a ball valve to block the gas is installed separately from the safety valve.

이에 이러한 볼밸브의 설치에 의해 비상시 배출되는 가스를 차단하고 있는데, 종래의 가스충전구로 소형 LPG 저장탱크에 가스를 주입하고 나면 상기 가스충전구 내에도 일부 가스가 잔류하면서 가스압력을 형성하게 된다.Accordingly, the installation of such a ball valve blocks gas discharged in an emergency. When gas is injected into a small LPG storage tank through a conventional gas filling port, some gas remains in the gas filling port to form gas pressure.

그런데 이러한 가스충전구는 실외 환경에 노출되어 있기 때문에 상기 가스충전구 내에 잔류하고 있는 가스는 실외 온도 등의 영향으로 인해 압력이 상승된다. 이렇게 상승된 과한 가스압력은 정상적인 압력 범위를 벗어난 압력이기 때문에, 상기 가스충전구 내부에서 부품들을 손상시키는 등의 문제를 발생시키곤 한다.However, since this gas filling port is exposed to the outdoor environment, the pressure of the gas remaining in the gas filling port increases due to the influence of outdoor temperature, etc. Since this increased excessive gas pressure is outside the normal pressure range, it often causes problems such as damage to parts inside the gas filling port.

이러한 문제점을 개선하고자 도 ??에 도시한 바와 같은 종래 가스충전구에서는 볼밸브(5)가 내장된 밸브몸체(1)의 측면으로 관통된 가스배출공(10)과 같은 것으로, 상기 가스충전구 내에 잔류하고 있는 가스가 압력이 높아지기 전에 배출하고 있는 것도 있다.In order to improve this problem, the conventional gas filling port as shown in Figure ?? is like a gas discharge hole (10) penetrated through the side of the valve body (1) in which the ball valve (5) is built. Some gases remaining inside are released before the pressure increases.

하지만 이러한 경우 상기 가스배출공(10)을 통해 잔류하고 있는 가스를 배출할 때 갑자기 가스가 배출되면서 작업자를 향해 뿜어져 나오는 문제가 있고, 더욱이 가스충전구의 잔류가스의 압력이 높아져 문제를 일으키는 시점이 언제인지 정확히 알 수 없어 대략 짐작으로 가스배출공(10)을 열어야만 하는 문제가 있다.However, in this case, when the remaining gas is discharged through the gas discharge hole 10, there is a problem that the gas is suddenly discharged and spouted toward the worker, and furthermore, the pressure of the residual gas in the gas filling port increases, causing the problem. There is a problem in that the gas discharge hole (10) must be opened by guessing as it is not known exactly when.

본 발명은 상기한 바와 같은 제반 문제점을 개선하기 위해 안출된 것으로서, 그 목적은 가스충전구 내에서 볼밸브와 결합되어 설치되는 과압방지구에 의해 가스를 주입하고 난 후, 상기 가스충전구 내에 있는 남아 있는 잔류 가스가 주입구 방향으로는 흐르지만 그 반대방향을 흐르지 못하도록 함으로써, 가스충전구 내에서 과압 상태로 있는 잔류 가스의 안전한 배출을 도모하도록 한 과충전압 방지용 가스충전구를 제공함에 있다.The present invention was devised to improve various problems as described above, and its purpose is to inject gas through an overpressure prevention device installed in combination with a ball valve within the gas filling port, The aim is to provide a gas charging port for preventing overcharge pressure, which ensures safe discharge of residual gas in an overpressure state within the gas charging port by allowing the remaining residual gas to flow in the direction of the inlet but not flowing in the opposite direction.

상기한 바와 같은 목적을 달성하기 위해 본 발명의 과충전압 방지용 가스충전구는, 가스를 주입하기 위해 연결되는 충전몸체와, 상기 충전몸체에 결합된 밸브몸체와, 상기 밸브몸체 내에 삽입된 볼밸브체와, 상기 볼밸브체에 연결된 개폐손잡이와, 상기 밸브몸체와 결합된 주입구를 포함하는 가스충전구에 있어서, 상기 주입구와 볼밸브체 사이에 설치되어 밸브몸체와 충전몸체 사이에 잔류하는 가스를 주입구 방향으로는 흐르게 하지만, 상기 주입구의 반대반향으로는 흐르지 못하도록 제한한 과압방지구를 더 포함하는 것을 특징으로 하고 있다.In order to achieve the above-described object, the gas charging port for preventing overcharge pressure of the present invention includes a charging body connected to inject gas, a valve body coupled to the charging body, and a ball valve inserted into the valve body. , a gas filling port including an opening and closing handle connected to the ball valve body and an inlet coupled to the valve body, which is installed between the inlet and the ball valve body to direct the gas remaining between the valve body and the filling body toward the inlet. It is characterized in that it further includes an overpressure prevention device that allows the flow to flow in the opposite direction of the injection port.

또 상기 과압방지구는 볼밸브체의 하단에 밀착되는 링 형태의 시트커버와 상기 시트커버의 커버면에 설치된 과압방지밸브로 이루어지는 것이 바람직하다.In addition, the overpressure prevention device is preferably composed of a ring-shaped seat cover in close contact with the lower end of the ball valve body and an overpressure prevention valve installed on the cover surface of the seat cover.

또 상기 과압방지밸브는 시트커버에 형성된 삽입공 내에 삽입되어 고정되는 것이 바람직하다.In addition, it is preferable that the overpressure prevention valve is inserted and fixed into an insertion hole formed in the seat cover.

상기 과압방지밸브는 파이프 형상으로 구성하되 파이프 형상의 한쪽은 얇은 막의 나팔관 형태로 구성하는 것이 바람직하다.The overpressure prevention valve is preferably configured in the shape of a pipe, with one side of the pipe being configured in the form of a thin fallopian tube.

또 상기 과압방지밸브는 나팔관 형태의 한쪽이 주입구 쪽으로 향하도록 시트커버의 삽입공 내에 삽입되어 고정되는 것이 바람직하다.In addition, the overpressure prevention valve is preferably inserted and fixed into the insertion hole of the seat cover so that one side of the fallopian tube is directed toward the inlet.

본 발명의 과충전압 방지용 가스충전구에 의하면, 가스충전구를 통해 LPG 저장탱크에 가스를 주입하고 난 후 상기 가스충전구 내에 잔류하고 있던 일부의 가스가 조금의 압력 상승으로도 과압방지구에 의해 주입구 쪽으로 흘러 다시 LPG 저장탱크 내로 주입되는 효과가 있다.According to the gas charging port for preventing overcharge pressure of the present invention, after injecting gas into the LPG storage tank through the gas charging port, some of the gas remaining in the gas charging port is discharged by the overpressure prevention port even with a slight increase in pressure. It has the effect of flowing toward the injection port and being injected back into the LPG storage tank.

이와 같이 본 발명의 가스충전구는 가스를 주입한 후에도 상기 가스충전구 내에는 미량의 가스라도 남아있지 않기 때문에 상기 가스충전구 내의 잔류가스의 압력 상승으로 인한 부품 손상 등을 미연에 방지할 수 있는 효과가 있다.In this way, the gas filling port of the present invention has the effect of preventing damage to parts due to an increase in the pressure of the residual gas in the gas charging port because even a trace amount of gas does not remain in the gas charging port even after gas is injected. There is.

더욱이 가스충전구 내에 일부 가스가 잔류하더라도 일정 조건만 되면 자동으로 주입구 쪽으로 배출되기 때문에 임의로 잔류가스를 배출해야 하는 등의 불편함이 전혀 없고, 잔류가스의 배출에 따라 사고의 위험으로 전혀 없는 효과가 있다.Moreover, even if some gas remains in the gas filling port, it is automatically discharged to the inlet under certain conditions, so there is no inconvenience such as having to arbitrarily discharge the residual gas, and there is no effect at all due to the risk of accidents due to the discharge of the residual gas. there is.

도 1은 본 발명에 따른 과충전압 방지용 가스충전구의 사시도
도 2는 본 발명에 따른 과충전압 방지용 가스충전구의 종단면도
도 3은 본 발명에 따른 과충전압 방지용 가스충전구의 분리 종단도
도 4는 본 발명에 따른 과충전압 방지용 가스충전구의 과압방지구의 사시도
도 5는 본 발명에 따른 과충전압 방지용 가스충전구의 과압방지구의 분리 사시도
도 6은 종래 가스충전구의 종단면도1 is a perspective view of a gas charging port for preventing overcharge pressure according to the present invention.
Figure 2 is a longitudinal cross-sectional view of a gas charging port for preventing overcharge pressure according to the present invention.
Figure 3 is an exploded longitudinal view of the gas charging port for preventing overcharge pressure according to the present invention.
Figure 4 is a perspective view of the overpressure prevention device of the gas charging port for preventing overcharge pressure according to the present invention.
Figure 5 is an exploded perspective view of the overpressure prevention device of the gas charging port for preventing overcharge pressure according to the present invention.
Figure 6 is a longitudinal cross-sectional view of a conventional gas filling port.

이하, 본 발명에 따른 과충전압 방지용 가스충전구의 바람직한 실시예를 첨부한 도면을 참조로 하여 상세히 설명한다. 본 발명은 이하에서 개시되는 실시예에 한정되는 것이 아니라 서로 다른 다양한 형태로 구현될 수 있으며, 단지 본 실시예는 본 발명의 개시가 완전하도록 하며 통상의 지식을 가진 자에게 발명의 범주를 완전하게 알려주기 위하여 제공되는 것이다.Hereinafter, a preferred embodiment of a gas charging port for preventing overcharge pressure according to the present invention will be described in detail with reference to the accompanying drawings. The present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms. However, the present embodiments only serve to complete the disclosure of the present invention and to fully convey the scope of the invention to those skilled in the art. It is provided for information purposes only.

도 1은 본 발명에 따른 과충전압 방지용 가스충전구의 사시도이고, 도 2는 본 발명에 따른 과충전압 방지용 가스충전구의 종단면도이며, 도 3은 본 발명에 따른 과충전압 방지용 가스충전구의 분리 종단도를 도시한 것이다.Figure 1 is a perspective view of a gas charging port for preventing overcharge voltage according to the present invention, Figure 2 is a longitudinal cross-sectional view of a gas filling port for preventing overcharge voltage according to the present invention, and Figure 3 is an separated longitudinal view of a gas charging port for preventing overcharge voltage according to the present invention. It is shown.

도 1 내지 도 3에 도시한 바와 같이, 본 발명에 따른 과충전압 방지용 가스충전구는 과압방지구(1)를 포함하여 구성되는데, 상기 과압방지구(1)는 충전몸체(2), 밸브몸체(3), 볼밸브체(4), 개폐손잡이(5) 및 주입구(6)를 포함하여 구성되는 가스충전구에서 상기 밸브몸체(3) 내에 삽입되어 볼밸브체(4)와 함께 결합하게 되며, 이에 대해서 다음과 같이 상세한 구성을 설명하도록 한다.As shown in Figures 1 to 3, the gas charging port for preventing overcharge pressure according to the present invention is comprised of an overpressure prevention device (1), wherein the overpressure prevention device (1) includes a charging body (2) and a valve body ( 3), the gas filling port consisting of the ball valve body (4), the opening/closing handle (5) and the inlet (6) is inserted into the valve body (3) and coupled with the ball valve body (4), The detailed configuration of this will be explained as follows.

먼저 상기한 바와 같은 가스충전구는 소형 LPG 저장탱크에 가스를 주입하기 위해 설치되며, 상기 개폐손잡이(5)를 조작하여 연결편(5a)을 통해 연결된 볼밸브체(4)의 볼밸브(4a)를 열면 충전몸체(2)를 통해 가스가 주입됨과 동시에 상기 주입구(6)를 통해 소형 LPG 저장탱크에 가스가 채워지게 된다.First, the gas filling port as described above is installed to inject gas into a small LPG storage tank, and the opening/closing handle (5) is operated to open the ball valve (4a) of the ball valve body (4) connected through the connection piece (5a). When opened, gas is injected through the charging body (2) and at the same time, the small LPG storage tank is filled with gas through the injection port (6).

상기한 가스충전구의 구성에서 상기 충전몸체(2)는 밸브몸체(3)의 상부 내로 삽입되어 결합되고, 상기 볼밸브체(4)는 볼밸브(4a)를 사이에 두고 상기 볼밸브(4a)의 상부에는 상부시트(4b)가 밀착되고, 하부에는 하부시트(4c)가 밀착된 상태에서 밸브몸체(3)의 하부 내로 삽입되어 결합된다. 또한 상기 하부시트(4c)와 주입구(6) 사이에는 과압방지구(1)로써 과압방지밸브(1a)가 설치된 시트커버(1b)가 위치하여 상기 주입구(6)와 함께 밸브몸체(4)의 하부 내로 삽입되어 결합된다. 따라서 상기 시트커버(1b)의 상면은 하부시트(4c)의 하면에 밀착되고, 상기 시트커버(1b)의 하면은 주입구(6)의 상면에 밀착된다.In the configuration of the gas filling port described above, the filling body (2) is inserted into and coupled to the upper part of the valve body (3), and the ball valve body (4) is connected to the ball valve (4a) with the ball valve (4a) interposed therebetween. The upper sheet 4b is in close contact with the upper part, and the lower sheet 4c is in close contact with the lower part and is inserted into the lower part of the valve body 3 to be coupled. In addition, a seat cover (1b) installed with an overpressure prevention valve (1a) as an overpressure prevention port (1) is located between the lower seat (4c) and the inlet (6), so that the valve body (4) together with the inlet (6) are positioned. It is inserted into the lower part and joined. Accordingly, the upper surface of the seat cover 1b is in close contact with the lower surface of the lower sheet 4c, and the lower surface of the seat cover 1b is in close contact with the upper surface of the injection port 6.

상기 시트커버(1b)는 중심부가 관통된 링 형태로 구성되며, 상기 과압방지밸브(1a)는 상기 시트커버(1b)의 커버면 소정 부위에 설치되는데, 상기 커버면 소정 부위에 홀 형태로 삽입공(7)을 관통시켜 과압방지밸브(1a)를 상기 삽입공(7)에 삽입하여 설치하게 된다. 즉 과압방지밸브(1a)를 삽입공(7)에 삽입한 상태에서 시트커버(1b)를 주입구(6)와 함께 밸브몸체(4) 내에 삽입하여 결합하면, 상기 과압방지밸브(1a)는 상부 및 하부에 하부시트(4c)와 주입구(6)가 밀착되면서 자연스럽게 고정된 상태로 있게 된다.The seat cover (1b) is configured in the form of a ring with a penetrating center, and the overpressure prevention valve (1a) is installed in a predetermined area of the cover surface of the seat cover (1b), and is inserted in the form of a hole in a predetermined area of the cover surface. The overpressure prevention valve (1a) is installed by penetrating the hole (7) and inserting it into the insertion hole (7). That is, when the overpressure prevention valve (1a) is inserted into the insertion hole (7) and the seat cover (1b) is inserted and coupled together with the injection port (6) into the valve body (4), the overpressure prevention valve (1a) is connected to the upper part. And the lower sheet 4c and the injection port 6 are in close contact with each other and are naturally fixed.

한편 상기 과압방지밸브(1a)는 시트커버(1b) 두께 정도의 미세한 파이프 형상으로 구성되며, 파이프 형상의 한쪽은 다른 쪽보다 얇은 막의 나팔관의 형태로 되어 있다. 이렇게 생긴 과압방지밸브(1a)는 나팔관 형태의 한쪽이 주입구(6) 방향으로, 파이프 형상의 다른 쪽이 볼밸브체(4)로 향하도록 시트커버(1b)의 삽입공(7)에 삽입된다.Meanwhile, the overpressure prevention valve 1a is composed of a fine pipe shape about the thickness of the seat cover 1b, and one side of the pipe shape is in the form of a fallopian tube with a thinner membrane than the other side. This overpressure prevention valve (1a) is inserted into the insertion hole (7) of the seat cover (1b) so that one side of the fallopian tube shape is directed toward the injection port (6) and the other side of the pipe shape is toward the ball valve body (4). .

따라서 가스충전구의 충전몸체(2)를 통해 가스를 주입하고 난 후, 밸브몸체(3) 내에서 상기 충전몸체(2)와 볼밸브체(4) 사이에 잔류하고 있던 가스는 과압방지밸브(1a)의 형상에 의해 주입구(6) 방향의 상기 과압방지밸브(1a)의 나팔관 형상 방향으로는 잘 흘러 소형 LPG 저장탱크에 수월하게 저장된다.Therefore, after injecting gas through the filling body (2) of the gas filling port, the gas remaining between the filling body (2) and the ball valve body (4) in the valve body (3) is transferred to the overpressure prevention valve (1a). Due to the shape of ), it flows well in the direction of the fallopian tube shape of the overpressure prevention valve (1a) in the direction of the injection port (6) and is easily stored in a small LPG storage tank.

하지만 상기의 잔류 가스가 소형 LPG 저장탱크에 저장되고 난 후에는 상기 과압방지밸브(1a)의 나팔관 형상에 의해 막혀 충전몸체(2) 방향으로는 흐를 수 없게 된다.However, after the residual gas is stored in the small LPG storage tank, it is blocked by the fallopian tube shape of the overpressure prevention valve (1a) and cannot flow in the direction of the filling body (2).

이와 같이 본 발명에 따른 과충전압 방지용 가스충전구로 소형 LPG 저장탱크에 가스를 충전하고 난 후에 상기한 과압방지구에 의해 가스충전구 내에 남아있던 잔류가스는 항상 소형 LPG 저장탱크로 흘러 주입되므로 상기 가스충전구 내에 미량의 가스라도 전혀 남아있지 않게 된다.In this way, after charging gas into the small LPG storage tank with the gas charging port for preventing overcharge pressure according to the present invention, the residual gas remaining in the gas charging port due to the overpressure prevention port always flows into the small LPG storage tank and is injected into the gas. Even a trace amount of gas will not remain in the charging port.

이상과 같이 본 발명에 따른 과충전압 방지용 가스충전구에 대해서 예시한 도면을 참조로 하여 설명하였으나, 본 명세서에 개시된 실시예와 도면에 의해 본 발명이 한정되는 것은 아니며, 본 발명의 기술사상의 범위 내에서 당업자에 의해 다양한 변형이 이루어질 수 있음은 물론이다.As described above, the gas charging port for preventing overcharge pressure according to the present invention has been described with reference to the drawings, but the present invention is not limited to the embodiments and drawings disclosed herein, and the scope of the technical idea of the present invention Of course, various modifications can be made by those skilled in the art.

1 : 과압방지구 1a : 과압방지밸브
1b : 시트커버 2 : 충전몸체
3 : 밸브몸체 4 : 볼밸브체
4a : 볼밸브 4b : 상부시트
4c : 하부시트 5 : 개폐손잡이
5a : 연결편 6 : 주입구
7 : 삽입공1: Overpressure prevention device 1a: Overpressure prevention valve
1b: Seat cover 2: Charging body
3: valve body 4: ball valve body
4a: Ball valve 4b: Upper seat
4c: Lower seat 5: Opening/closing handle
5a: Connection piece 6: Inlet
7: Insertion hole

Claims (5)

가스를 주입하기 위해 연결되는 충전몸체와, 상기 충전몸체에 결합된 밸브몸체와, 상기 밸브몸체 내에 삽입된 볼밸브체와, 상기 볼밸브체에 연결된 개폐손잡이와, 상기 밸브몸체와 결합된 주입구를 포함하는 가스충전구에 있어서,
상기 주입구와 볼밸브체 사이에 설치되어 밸브몸체와 충전몸체 사이에 잔류하는 가스를 주입구 방향으로는 흐르게 하지만, 상기 주입구의 반대반향으로는 흐르지 못하도록 제한한 과압방지구를 더 포함하는 것을 특징으로 하는 과충전압 방지용 가스충전구.A filling body connected to inject gas, a valve body coupled to the filling body, a ball valve body inserted into the valve body, an opening/closing handle connected to the ball valve body, and an injection port coupled to the valve body. In the gas filling port containing,
Characterized in that it further includes an overpressure prevention device installed between the inlet and the ball valve body to allow the gas remaining between the valve body and the filling body to flow in the direction of the inlet, but to restrict it from flowing in the opposite direction of the inlet. Gas charging port to prevent overcharge pressure. 제1항에 있어서,
상기 과압방지구는 볼밸브체의 하단에 밀착되는 링 형태의 시트커버와 상기 시트커버의 커버면에 설치된 과압방지밸브로 이루어지는 것을 특징으로 하는 과충전압 방지용 가스충전구.According to paragraph 1,
The overpressure prevention device is a gas charging port for preventing overcharge pressure, characterized in that it consists of a ring-shaped seat cover that is in close contact with the lower end of the ball valve body and an overpressure prevention valve installed on the cover surface of the seat cover. 제2항에 있어서,
상기 과압방지밸브는 시트커버에 형성된 삽입공 내에 삽입되어 고정되는 것을 특징으로 하는 과충전압 방지용 가스충전구.According to paragraph 2,
The overpressure prevention valve is a gas charging port for preventing overcharge pressure, characterized in that it is inserted and fixed into an insertion hole formed in the seat cover. 제3항에 있어서,
상기 과압방지밸브는 파이프 형상으로 구성하되 파이프 형상의 한쪽은 얇은 막의 나팔관 형태로 구성한 것을 특징으로 하는 과충전압 방지용 가스충전구.According to paragraph 3,
The overpressure prevention valve is configured in the shape of a pipe, and one side of the pipe shape is configured in the form of a thin fallopian tube. 제4항에 있어서,
상기 과압방지밸브는 나팔관 형태의 한쪽이 주입구 쪽으로 향하도록 시트커버의 삽입공 내에 삽입되어 고정된 것을 특징으로 하는 과충전압 방지용 가스충전구.According to clause 4,
The overpressure prevention valve is a gas filling port for preventing overcharge pressure, characterized in that it is inserted and fixed into the insertion hole of the seat cover so that one side of the fallopian tube is directed toward the inlet.
KR1020220097812A 2022-08-05 2022-08-05 Gas plugger for prevention of overpressures KR20240019967A (en)

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