KR100311358B1 - Liquefied petroleum gas overflow accident prevention device - Google Patents
Liquefied petroleum gas overflow accident prevention device Download PDFInfo
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- KR100311358B1 KR100311358B1 KR1019980032756A KR19980032756A KR100311358B1 KR 100311358 B1 KR100311358 B1 KR 100311358B1 KR 1019980032756 A KR1019980032756 A KR 1019980032756A KR 19980032756 A KR19980032756 A KR 19980032756A KR 100311358 B1 KR100311358 B1 KR 100311358B1
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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
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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
- F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/30—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces specially adapted for pressure containers
- F16K1/304—Shut-off valves with additional means
- F16K1/305—Shut-off valves with additional means with valve member and actuator on the same side of the seat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/30—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces specially adapted for pressure containers
- F16K1/307—Additional means used in combination with the main valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
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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
- 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
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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
- 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
- F17C2205/0382—Constructional details of valves, regulators
-
- 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
- F17C2205/0388—Arrangement of valves, regulators, filters
- F17C2205/0394—Arrangement of valves, regulators, filters in direct contact with the pressure vessel
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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
- 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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- 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
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
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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
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
- F17C2223/033—Small pressure, e.g. for liquefied gas
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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
- F17C2270/00—Applications
- F17C2270/07—Applications for household use
- F17C2270/0745—Gas bottles
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Safety Valves (AREA)
Abstract
본 발명은 액화석유가스용기 밸브에 관한 것으로, 특히 가스가 과류로 배출되는 사고가 발생될 시 이를 신속히 신뢰성 있게 차단하여 대형 가스사고를 미연에 방지할 수 있도록 한 액화석유가스 과류사고방지장치에 관한 것으로, 가스유입 및 배출구(110A), 가스통과공(110B) 및 가스배출구(110C)를 갖는 밸브몸체(110)의 가스통과공(110B)을 개폐 조작시키기 위한 밸브 핸들(120)을 구비한 액화석유가스용기 밸브에 있어서,The present invention relates to a liquefied petroleum gas container valve, and more particularly to a liquefied petroleum gas overflow accident prevention device that can prevent large gas accident in advance by reliably blocking when an accident that gas is discharged due to overflow Liquefaction with a valve handle 120 for opening and closing the gas passage hole 110B of the valve body 110 having the gas inlet and outlet port 110A, the gas passage hole 110B and the gas outlet port 110C. In the oil gas container valve,
상기 가스배출구(110C)측의 과류발생시 상기 가스통과공(110B)내에서 압력차를 발생시키고, 이 차압에 의해 상승 작동하여 상기 가스통과공(110B)을 차단하는 밸브수단과;Valve means for generating a pressure difference in the gas through hole (110B) when an overflow occurs on the gas discharge port (110C) side, and raising by the differential pressure to block the gas through hole (110B);
상기 밸브수단의 상승 작동시 이를 안내 지지하도록 상기 밸브몸체(110)의 가스유입 및 배출구(110A)내에 설치된 밸브 안내수단과;Valve guide means installed in the gas inlet and outlet port 110A of the valve body 110 to guide and support the valve means during the ascending operation;
상기 밸브수단을 상기 밸브 안내수단에서 탄성적으로 지지하는 탄성지지수단(180)을 포함한 것을 특징으로 한다.It characterized in that it comprises an elastic support means 180 for elastically supporting the valve means in the valve guide means.
Description
본 발명은 액화석유가스용기 밸브에 관한 것으로, 특히 가스가 과류로 배출되는 사고가 발생될 시 이를 신속히 신뢰성 있게 차단하여 대형 가스사고를 미연에 방지할 수 있도록 한 액화석유가스 과류사고방지장치에 관한 것이다.The present invention relates to a liquefied petroleum gas container valve, and more particularly to a liquefied petroleum gas overflow accident prevention device that can prevent large gas accident in advance by reliably blocking when an accident that gas is discharged due to overflow will be.
액화석유가스(LPG)를 저장하는 가스용기에는 가스 사용중 배출구 또는 외부에서 발생되는 과류를 차단하기 위해 과류차단장치가 요구된다.Gas containers for storing liquefied petroleum gas (LPG) require an overflow shutoff device to block outflows occurring outside the gas outlet or during use.
이러한 과류의 발생은 ①가스기기 사용중 ②용기 이동시 ③재충전시 ④지진발생 ⑤자해행위 ⑥테러 등등 여러 상황에서 발생될 수 있는 바, 이를 차단하기 위해 가스용기 밸브에 과류차단장치가 설치된다.Such overflow can occur in various situations such as ① during use of gas equipment ② during moving of the container ③ during recharging ④ earthquake ⑤ self-harm ⑥ terrorism etc. To prevent this, an overflow blocking device is installed in the gas container valve.
종래, 가스용기 밸브 과류차단장치가 도 4에 도시된 바와 같이, 가스유입 및 배출구(11), 가스통과공(12) 및 가스배출구(13)를 갖는 밸브몸체(10)와, 상기 밸브몸체(10)의 가스통과공(12)을 개폐시키는 밸브 핸들(20)과, 상기 가스유입 및 배출구(11)내에 설치된 볼 실린더(30)와, 이 볼 실린더(30)내에 삽입됨과 동시에 스프링(40)에 의해 지지되어 상기 가스배출구(13)에 과류의 발생시 가스통과공(12)을 폐쇄하는 자동밸브용 볼(50)을 포함하고 있다.Conventionally, as shown in FIG. 4, a gas container valve overflow blocking device includes a valve body 10 having a gas inlet and outlet 11, a gas passage hole 12, and a gas outlet 13, and the valve body ( The valve handle 20 which opens and closes the gas passage hole 12 of the 10, the ball cylinder 30 provided in the gas inlet and outlet 11, and the spring 40 being inserted into the ball cylinder 30 at the same time. It is supported by the gas outlet 13 includes a ball 50 for the automatic valve for closing the gas passage hole 12 in the event of an overflow.
이와 같이 구성된 종래의 가스용기 밸브의 과류차단은 다음과 같이 하여 작동한다.The overcurrent blocking of the conventional gas container valve configured as described above operates as follows.
먼저, 밸브 핸들(20)을 회전시켜 가스통과공(12)을 개방시키면 가스배출구(13)로 가스가 배출될 수 있는 상태가 된다. 이때 자동밸브용 볼(50)은 스프링(40)에 받쳐진 상태로 가스통과공(12)에서 소정의 간격으로 떨어져 있는 상태를 유지한다.First, opening the gas passage hole 12 by rotating the valve handle 20 is in a state in which gas can be discharged to the gas outlet 13. At this time, the automatic valve ball 50 is maintained at a predetermined interval from the gas passage hole 12 in a state supported by the spring (40).
이때, 일례로 가스배출구(13)에 연결된 호스(도시안됨) 부분에 화재가 발생하는 등의 이유로 과류가스가 누출되면, 가스배출구(13)측의 압력은 급작히 하강하고, 가스유입 및 배출구(11)측의 높은 가스압력에 의해 자동밸브용 볼(50)이 상승하여 가스통과공(12)을 차단하게 되어 있다.At this time, for example, when the overflow gas leaks due to a fire occurring in a portion of the hose (not shown) connected to the gas outlet 13, the pressure on the gas outlet 13 side drops abruptly, and the gas inlet and outlet ( Due to the high gas pressure on the 11) side, the automatic valve ball 50 rises to block the gas passage hole 12.
그런데 이같이 작동하는 종래의 가스용기 밸브의 과류안전장치는 다음과 같은 문제가 있다.However, the overflow safety device of the conventional gas container valve operating as described above has the following problems.
첫째, 자동밸브용 볼(50)이 과류차단을 하기 위해 상승시 잔류가스회수의 목적으로 볼 실린더(30)내에 형성된 Ａ부분의 확대통로에서 갑자기 상승압력이 떨어져 가스통과공(12)을 제대로 막지 못하고 중간에서 노는 경우가 발생한다.First, when the automatic valve ball 50 rises in order to block the overflow, the upward pressure drops suddenly in the enlarged passage of the A portion formed in the ball cylinder 30 for the purpose of recovering residual gas, thereby preventing the gas passage hole 12 from being properly blocked. If you do not play in the middle.
따라서 만에 하나 이렇게 될 경우 액화석유가스의 과류차단이 이루어지지 않아 대형 사고를 유발할 수 있는 것이다.Therefore, in this case, the overflow of liquefied petroleum gas is not made, which may cause a large accident.
둘째, 액화석유가스용기내의 잔류가스액 회수시 밸브 핸들을 돌려 자동밸브용 볼을 들어올리고 가스통과공(12)을 열어서 Ｔ부분을 개방시키는데 시간이 많이 걸리므로 회수작업을 신속히 할 수 없다.Second, when recovering the residual gas liquid in the liquefied petroleum gas container, it takes a long time to lift the ball for the automatic valve by turning the valve handle and open the gas passage hole (12) to open the T part, so the recovery operation cannot be performed quickly.
셋째, 밸브몸체에 추가적으로 설치된 안전밸브가 유사시 배출압력을 충분히 뺄 수 없어 액화석유가스용기가 가열을 받을 시 폭발위험성이 큰 단점이 있다.Third, there is a big risk of explosion when the liquefied petroleum gas container is heated because the safety valve additionally installed on the valve body cannot release the discharge pressure sufficiently.
본 발명은 상기와 같은 사정을 감안하여 창안된 것으로, 가스가 과류로 배출되는 사고가 발생될 시 이를 신속히 신뢰성 있게 차단하여 대형 가스사고를 미연에 방지할 수 있도록 한 액화석유가스 과류사고방지장치를 제공함에 그 목적이 있다.The present invention was devised in view of the above circumstances, and when the accident that the gas is discharged into the overflow occurs, a liquefied petroleum gas overflow accident prevention device that can prevent the large gas accident in advance by reliably blocking it. The purpose is to provide.
다른 목적은, 밸브 핸들의 조작 이송량을 종래 보다 2배로 증가케 하여 잔류가스액의 신속한 회수가 가능케 하는 것이다.Another object is to increase the operation transfer amount of the valve handle by 2 times than before, thereby enabling the rapid recovery of the residual gas liquid.
또 다른 목적은, 가스용기 밸브에 설치된 안전밸브측에 설정압 이상의 높은 배출압력이 충분히 빠져나갈 수 있도록 하여 액화석유가스용기의 폭발을 미연에 방지할 수 있도록 함에 있다.Another object is to prevent the explosion of the liquefied petroleum gas container by allowing the high discharge pressure higher than the set pressure to sufficiently escape to the safety valve side installed in the gas container valve.
상기의 목적을 달성하기 위한 본 발명의 구체적인 수단은, 가스유입 및 배출구(110A), 가스통과공(110B) 및 가스배출구(110C)를 갖는 밸브몸체(110)의 가스통과공(110B)을 개폐 조작시키기 위한 밸브 핸들(120)을 구비한 액화석유가스용기 밸브에 있어서,Specific means of the present invention for achieving the above object, opening and closing the gas passage hole (110B) of the valve body 110 having a gas inlet and outlet 110A, gas passage hole (110B) and gas outlet (110C). In the liquefied petroleum gas container valve having a valve handle 120 for operating,
상기 가스배출구(110C)측의 과류발생시 상기 가스통과공(110B)내에서 압력차를 발생시키고, 이 차압에 의해 상승 작동하여 상기 가스통과공(110B)을 차단하는 밸브수단과;Valve means for generating a pressure difference in the gas through hole (110B) when an overflow occurs on the gas discharge port (110C) side, and raising by the differential pressure to block the gas through hole (110B);
상기 밸브수단의 상승 작동시 이를 안내 지지하도록 상기 밸브몸체(110)의 가스유입 및 배출구(110A)내에 설치된 밸브 안내수단과;Valve guide means installed in the gas inlet and outlet port 110A of the valve body 110 to guide and support the valve means during the ascending operation;
상기 밸브수단을 상기 밸브 안내수단에서 탄성적으로 지지하는 탄성지지수단(180)을 포함한 것을 특징으로 한다.It characterized in that it comprises an elastic support means 180 for elastically supporting the valve means in the valve guide means.
또, 상기 밸브몸체(110)에는 가스유입 및 배출구(110A)와 연통된 안전밸브(200)측에 배압제거 보조홀(110E)을 추가로 구성한 것을 특징으로 한다.In addition, the valve body 110 is characterized in that the back pressure removal auxiliary hole (110E) is further configured on the side of the safety valve 200 in communication with the gas inlet and outlet (110A).
도 1은 본 발명의 실시예에 의한 가스용기 밸브의 과류사고방지장치의 조립단면도로서 과류 발생전의 상태도.1 is a cross-sectional view of the assembly of the overflow accident prevention device of the gas container valve according to an embodiment of the present invention before the overflow occurs.
도 2는 도 1의 요부 확대도.2 is an enlarged view illustrating main parts of FIG. 1;
도 3은 도 1에서 과류 발생시 과류사고방지장치의 작동상태도로서 요부확대도.3 is an enlarged view of the main part as an operating state diagram of the overflow accident prevention device when the overflow occurs in FIG.
도 4는 종래 액화석유가스용기 밸브의 과류차단장치 구성도.Figure 4 is a block diagram of an overflow blocking device of a conventional liquefied petroleum gas container valve.
<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>
110 : 밸브 몸체 110A : 가스유입 및 배출구 110B : 가스통과공110: valve body 110A: gas inlet and outlet 110B: gas through hole
110C : 가스배출구 130 : 상부 밸브안내구 131,141 : 밸브축 안내공110C: gas outlet 130: upper valve guide 131,141: valve shaft guide hole
132,142 : 가스홀 140 : 하부 밸브안내구 150 : 밸브축132, 142: gas hole 140: lower valve guide port 150: valve shaft
151 : 플랜지 160 : 과류차단용 패킹 170 : 압력작용턱151: Flange 160: Overflow blocking packing 170: Pressure working jaw
200 : 안전밸브 110E : 배압제거 보조홀 110-1 : 기밀유지턱200: safety valve 110E: back pressure relief auxiliary hole 110-1: airtight holding jaw
이하, 첨부된 도면을 참조하여 본 발명의 실시예를 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;
도 1내지 도 2에 도시된 바와 같이 가스유입 및 배출구(110A), 가스통과공(110B) 및 가스배출구(110C)를 갖는 밸브몸체(110)와, 이 밸브몸체(110)의 가스통과공(110B)을 개폐 조작시키기 위한 밸브 핸들(120)을 구비한 가스용기 밸브에 있어서,1 to 2, a valve body 110 having a gas inlet and outlet 110A, a gas passage hole 110B and a gas outlet 110C, and a gas passage hole of the valve body 110 ( In the gas container valve having a valve handle 120 for opening and closing 110B),
상기 밸브 핸들(120)에는 나사(121)를 통해 스핀들(122)이 연결되어 있고, 이 스핀들(122)은 상기 밸브몸체(110)에 2줄 나사 결합되어 있고, 상기 스핀들(122)에는 스템(123)이 상기 밸브 핸들(120)의 회전방향에 따라 스핀들(122)에 연동하여 상하로 작동하게 되어 있고, 상기 스템(123)의 저면에는 상기 가스통과공(110B)을 개폐시키기 위한 시트(124)가 설치되어 있고, 상기 시트(124)에는 잔류가스액 회수시 후술할 과류차단을 위한 밸브수단의 밸브축(150)을 강제로 하강시키기 위한 니들(125)이 설치되어 있다.The spindle 122 is connected to the valve handle 120 through a screw 121, and the spindle 122 is screwed to the valve body 110 in two rows, and the spindle 122 has a stem ( 123 is operated up and down in conjunction with the spindle 122 in accordance with the rotation direction of the valve handle 120, the seat 124 for opening and closing the gas passage hole (110B) on the bottom surface of the stem (123). Is installed, and the seat 124 is provided with a needle 125 for forcibly lowering the valve shaft 150 of the valve means for blocking the excess flow to be described later when the residual gas liquid is recovered.
따라서 밸브 핸들(120)을 1회전시키면 스핀들(122)이 밸브몸체(110)에 2줄 나사결합되어 있어 스템(123)의 이송량이 종래 보다 2배로 증가되어 잔류가스액의 회수를 신속히 할 수 있다.Therefore, when the valve handle 120 is rotated once, the spindle 122 is screwed to the valve body 110 in two rows so that the transfer amount of the stem 123 is doubled than before, so that the remaining gas liquid can be recovered quickly.
상기 밸브몸체(110)의 가스유입 및 배출구(110A)내에는 후술할 밸브수단이 작동할 시 이를 안내하기 위한 밸브 안내수단으로, 상기 밸브몸체(110)의 가스유입 및 배출구(110A) 상부에 삽입되어 중앙에 관통된 밸브 축 안내공(131)을 갖고 둘레에 관통된 수개의 가스홀(132)을 갖는 상부 밸브안내구(130)와, 상기 가스유입 및 배출구(110A)의 하부에 나사결합되어 중앙에 관통된 밸브 축 안내공(141)을 갖고 둘레에 관통된 수개의 가스홀(142)을 갖는 하부 밸브안내구(140)로 구성되어 있고, 상기 상부 밸브안내구(130)는 하부 밸브안내구(140)에 원통 지지대(146)로 지지되어 있다.In the gas inlet and outlet 110A of the valve body 110 is a valve guide means for guiding this when the valve means to be described later to operate, inserted into the gas inlet and outlet 110A of the valve body 110. And an upper valve guide port 130 having a valve shaft guide hole 131 penetrated at the center and several gas holes 132 penetrated therethrough, and screwed into a lower portion of the gas inlet and outlet 110A. It consists of a lower valve guide port 140 having a valve shaft guide hole 141 penetrated in the center and several gas holes 142 penetrated around the upper valve guide port 130. It is supported by the cylindrical support 146 to the sphere 140.
상기 가스배출구(110C)의 과류발생시 상기 가스통과공(110B)내에서 압력차를 발생시키고, 이 차압에 의해 상승 작동하여 상기 가스통과공(100B)을 차단하는 밸브수단으로,As a valve means for generating a pressure difference in the gas through hole (110B) when the overflow of the gas discharge port (110C) occurs, and by the differential pressure to act to block the gas through hole (100B),
상기 상,하부 밸브안내구(130,140)의 밸브 축 안내공(131,141)에 안내 지지되는 밸브 축(150)과, 상기 밸브축(150)의 상단부에 구비되서 과류발생에 의한 차압을 받는 압력작용턱(170)과, 상기 압력작용턱(170)에 차압 작용시 가스통과공(110B)을 차단하기 위해 상승하는 밸브축(150)에 설치된 과류차단패킹(160)이 구성되어 있다.A pressure acting jaw provided with a valve shaft 150 guided and supported by the valve shaft guide holes 131 and 141 of the upper and lower valve guides 130 and 140 and an upper end of the valve shaft 150 to receive a differential pressure due to overflow. And the overflow blocking packing 160 installed on the valve shaft 150 to block the gas passage hole 110B when the differential pressure is applied to the pressure acting jaw 170.
상기 압력작용턱(170)은 상기 가스통과공(110B)의 벽면과 가스조절량을 틈새 Ｂ로서 조절할 수 있도록 되어 있고, 과류의 발생시 이 틈새(B)를 경계로 하여 ⓔ와 ⓓ부분에서 압력차가 발생되도록 되어 있다.The pressure acting jaw 170 is capable of adjusting the wall surface and the gas control amount of the gas passage hole 110B as a gap ,, and a pressure difference is generated in the ⓔ and ⓓ part with the gap B as a boundary when an overflow occurs. It is supposed to be.
그리고 압력작용턱(170)의 저부 ⓕ측에는 정상적인 가스의 사용시 원활한 가스의 흐름을 형성하기 위한 환형홈(170A)이 형성되어 있다.And the bottom ⓕ side of the pressure working jaw 170 is formed with an annular groove 170A for forming a smooth gas flow when using normal gas.
상기 과류차단패킹(160)은 상기 밸브축(150)의 상부에 형성된 패킹걸림턱(157)과 패킹받이부(158)의 사이에 탄력적으로 삽입 장착되어 있다.The overflow blocking packing 160 is elastically inserted between the packing catching jaw 157 and the packing receiving part 158 formed on the valve shaft 150.
상기 밸브몸체(110)의 가스통과공(110B) 입구측 저면에는 상기 밸브축(150)의 상승시 상기 과류차단용 패킹(160)의 접촉기밀을 유지하기 위해 원형의 기밀유지턱(110-1)이 형성되어 있다.On the bottom surface of the inlet side of the gas passage hole 110B of the valve body 110, a circular airtight holding jaw 110-1 is maintained to maintain contact tightness of the overflow blocking packing 160 when the valve shaft 150 is raised. ) Is formed.
상기 밸브축(150)을 탄성적으로 지지하여 상기 압력작용턱(170)이 상기 가스통과공(110B)내에 위치하도록 상기 밸브축(150)의 패킹받이부(151)와 상부 밸브축 안내구(130)의 사이에 탄성지지수단으로 스프링(180)설치되어 있다.The packing receiving portion 151 and the upper valve shaft guide of the valve shaft 150 so that the pressure acting jaw 170 is located in the gas passage hole 110B by elastically supporting the valve shaft 150. Between the springs 130 is provided with a spring 180 as an elastic support means.
한편, 상기 밸브몸체(110)에는 가스용기내의 압력이 설정 압력을 초과시 초과 압력을 제거하기 위해 가스유입 및 배출구(110A)와 연통된 안전밸브(200)측에 배출압력 제거홀(110E)이 형성되어 있다.On the other hand, the valve body 110 has a discharge pressure removing hole (110E) is formed on the side of the safety valve 200 in communication with the gas inlet and outlet 110A to remove the excess pressure when the pressure in the gas container exceeds the set pressure. It is.
미설명 부호 201은 시트, 202는 밸브, 203은 압축스프링, 204는 안전커버, 300은 오링, 301은 스톱링이다.Reference numeral 201 denotes a seat, 202 denotes a valve, 203 denotes a compression spring, 204 denotes a safety cover, 300 denotes an O-ring, and 301 denotes a stop ring.
이와 같이 구성된 본 실시예의 작동상태를 설명한다.The operating state of this embodiment configured as described above will be described.
도 1에 도시된 바와 같이 밸브 핸들(120)이 조작되어 시트(124)가 밸브몸체(110)의 가스통과공(110B)이 개방된 상태에서는 가스배출구(110C)로 가스가 사용배출될 수 있는 상태이다.As shown in FIG. 1, when the valve handle 120 is operated so that the seat 124 is open with the gas passage hole 110B of the valve body 110, the gas may be discharged to the gas outlet 110C. It is a state.
이때, 가스배출구(110C)에 일례로, 가스기기가 연결된 상태에서 가스가 정상적으로 사용되어 지면 가스배출구(110C)와 가스유입 및 배출구(110A)측인 ⓓ와 ⓔ부분에는 압력차가 거의 없어 압력작용턱(170)에는 상승압력이 작용하지 않는다.At this time, when the gas is normally used in the state in which the gas outlet is connected to the gas outlet 110C, gas pressure outlet 110C and the gas inlet and outlet 110A side ⓓ and ⓔ parts have almost no pressure difference, and thus the pressure working jaw ( 170) no upward pressure is applied.
만일, 상기 가스배출구(110C)와 연결된 호스(도시안됨)부분에 파손 및 화재가 발생되어 가스배출구(110C)로 뜻하지 않는 과다한 가스가 배출되면, 밸브몸체(110)의 가스배출구(110C)측 ⓓ부분의 압력이 현저히 떨어진다.If the hose (not shown) connected to the gas outlet 110C is damaged and a fire is generated, and an excessive amount of gas that is not intended as the gas outlet 110C is discharged, the gas outlet 110C side of the valve body 110 ⓓ The pressure in the part drops significantly.
이렇게 되면 압력작용턱(170)과 가스통과공(110B) 사이의 틈새(B)측 경계면을 사이에 두고 가스충전실측인 ⓔ부분과 가스소모실 ⓓ부분에 압력차가 발생한다.In this case, a pressure difference occurs in the part ⓔ and the gas consuming part ⓓ of the gas filling chamber with the gap B between the pressure action jaw 170 and the gas passage hole 110B interposed therebetween.
이 압력차가 밸브 몸체(110)의 가스유입 및 배출구(110A)측의 압력이 가스배출구(110C)측의 압력보다 상당히 높게 나타난다.This pressure difference appears that the pressure at the gas inlet and outlet 110A side of the valve body 110 is significantly higher than the pressure at the gas outlet 110C side.
따라서 ⓔ부분에 충전된 높은 가스압력에 의해 가스용기내의 가스가 밸브몸체(110)의 가스유입 및 배출구(110)측에서 가스통과공(110B)측으로 강하게 분출하려는 힘이 작용하고, 이 힘은 상기 압력작용턱(170)의 저면인 ⓕ부분에 작용해서 밸브축(150)이 급상승한다.Therefore, a high gas pressure filled in the ⓔ part is a force to strongly eject the gas in the gas container from the gas inlet and outlet 110 side of the valve body 110 to the gas passage hole (110B) side, the force is The valve shaft 150 suddenly rises by acting on the ⓕ portion, which is the bottom surface of the pressure acting jaw 170.
상기 밸브축(150)의 상승으로 밸브 축(150)의 상부에 설치된 과류차단용 패킹(160)의 상면이 가스통과공(110B)의 입구 저면에 형성된 기밀유지턱(110-1)에 강하게 밀착되어 순간적으로 가스통과공(110B)으로 가스의 과류를 차단한다. (도 3참조)As the valve shaft 150 rises, the upper surface of the overflow blocking packing 160 installed on the upper portion of the valve shaft 150 strongly adheres to the airtight holding jaw 110-1 formed on the bottom surface of the inlet of the gas passage hole 110B. It is momentarily blocked the gas flow through the gas passage hole (110B). (See Fig. 3)
이와 같이 작동하는 본 발명의 액화석유가스의 과류차단방법은 일단 밸브축(150)이 과류에 의한 차압에 의해 상승하게 되면 이 상승압력을 방해하는 요인이 없으므로 종래와 같이 중간에 정지하거나 노는 일은 없어 가스차단 작동의 확실한 신뢰성을 갖는다.In the current blocking method of the liquefied petroleum gas of the present invention operating as described above, once the valve shaft 150 rises due to the differential pressure caused by the overflow, there is no factor that obstructs the rising pressure. It has reliable reliability of gas shutoff operation.
이후 과류의 원인을 수리 한 후 핸들(120)을 조작하여 니들(125)이 밸브 캡(170)의 상단을 내려 누르면 밸브 축(150)이 하강하고 과류차단용 패킹(160)이 가스통과공(110B)을 열게 되어 가스의 재사용에는 문제가 없다.Thereafter, after repairing the cause of the overflow, the handle 120 is operated, and the needle 125 pushes down the upper end of the valve cap 170 so that the valve shaft 150 descends and the overflow blocking packing 160 has a gas passage hole ( 110B) is open, so there is no problem with gas reuse.
한편, 본 발명은 밸브 축(150)이 작동후에도 상기 밸브몸체(110)의 가스유입 및 배출구(110A)측 상,하부에 설치된 상부 밸브안내구(130)와, 하부 밸브안내구(140)에 의해 지지 설치됨으로 외부에서 심한 충격을 받아도 흔들림이 거의 없어 가스누출의 염려가 없다.On the other hand, the present invention is the upper valve guide port 130 and the lower valve guide port 140 is installed on the upper and lower sides of the gas inlet and outlet 110A side of the valve body 110 even after the valve shaft 150 is operated. Since it is installed by the support, there is almost no shaking even when severely impacted from the outside, so there is no fear of gas leakage.
또, 가스용기내에 설정압 이상의 가스가 채워졌을 경우 안전밸브(200)가 작동하여 배압제거 보조홀(110E)로 신속히 가스압력이 제거됨으로 과압에 의한 가스폭발을 미연에 방지할 수 있다.In addition, when the gas container is filled with a gas of a predetermined pressure or more, the safety valve 200 operates to quickly remove the gas pressure into the back pressure removing auxiliary hole 110E, thereby preventing the gas explosion due to overpressure.
또한 가스용기내의 잔류가스액 회수 목적으로 상기 핸들(120)의 조작시 스핀들(122)의 이송량이 종래 보다 증가되어 신속히 니들(125)이 밸브 축(150)을 내려 누를 수 있어 작업속도를 빠르게 수행할 수 있다.In addition, when the handle 120 is operated for the purpose of recovering the residual gas liquid in the gas container, the feed amount of the spindle 122 is increased than before, so that the needle 125 can quickly press down the valve shaft 150 to perform a fast working speed. Can be.
상술한 바와 같이 본 발명에 의하면, 액화가스용기내의 가스를 개폐시키기 위한 밸브내에 과류의 발생시 이를 밸브몸체내의 가스통과공내에서 차압을 발생시키고, 이 차압에 의해 신속히 가스통로를 차단하여 안전하고 신뢰성 있는 과류차단을 보장할 수 있고, 잔류가스의 회수를 신속히 수행할 수 있으며, 과압에 의한 가스용기의 폭발사고를 없앨 수 있다.As described above, according to the present invention, when an overflow occurs in the valve for opening and closing the gas in the liquefied gas container, a differential pressure is generated in the gas passage hole in the valve body, and the gas passage is quickly shut off by the differential pressure to safely and reliably. Overflow protection can be ensured, residual gas can be recovered quickly, and the explosion of the gas container due to overpressure can be eliminated.
Claims (5)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980032756A KR100311358B1 (en) | 1998-08-12 | 1998-08-12 | Liquefied petroleum gas overflow accident prevention device |
| PCT/KR1999/000448 WO2000009918A2 (en) | 1998-08-12 | 1999-08-12 | Lpg (liquefied petroleum gas) overflow blocking apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980032756A KR100311358B1 (en) | 1998-08-12 | 1998-08-12 | Liquefied petroleum gas overflow accident prevention device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20000013723A KR20000013723A (en) | 2000-03-06 |
| KR100311358B1 true KR100311358B1 (en) | 2001-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019980032756A KR100311358B1 (en) | 1998-08-12 | 1998-08-12 | Liquefied petroleum gas overflow accident prevention device |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100311358B1 (en) |
| WO (1) | WO2000009918A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100508383B1 (en) * | 2003-02-05 | 2005-08-17 | 주식회사 다임코 | Safety Valve Equipment for LPG Keeping Cask |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010069595A (en) * | 2001-04-19 | 2001-07-25 | 이성로 | Automatic shutting valve |
| KR20050077114A (en) * | 2004-01-26 | 2005-08-01 | 오영하 | Liquefied petroleum gas over flow intercept device |
| KR101686925B1 (en) * | 2015-06-15 | 2016-12-28 | 주식회사 대흥정공 | Multi-valve for fuel overcharging prevention |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2721370B1 (en) * | 1994-06-17 | 1996-09-13 | Banides Debeaurain | Automatic protection device for secondary fluid piping. |
| US5704391A (en) * | 1995-02-16 | 1998-01-06 | Umac Incorporated | Gravity-operated gas shut-off valve |
-
1998
- 1998-08-12 KR KR1019980032756A patent/KR100311358B1/en not_active IP Right Cessation
-
1999
- 1999-08-12 WO PCT/KR1999/000448 patent/WO2000009918A2/en active Application Filing
Non-Patent Citations (1)
| Title |
|---|
| 12 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100508383B1 (en) * | 2003-02-05 | 2005-08-17 | 주식회사 다임코 | Safety Valve Equipment for LPG Keeping Cask |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20000013723A (en) | 2000-03-06 |
| WO2000009918A3 (en) | 2000-06-02 |
| WO2000009918A2 (en) | 2000-02-24 |
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