A CONTROL VALVE FOR CRYOGENIC HIGH PRESSURE GAS WHICH HAVING DOUBLE PLUG STRUCTURE

This invention provides a control valve for a cryogenic high pressure gas having a double plug structure which consists of: a valve body (10) with a gas inlet (12) and a gas outlet (16) on both sides; a bonnet (20) on the valve body (10); a cage (30) located in a middle flow path (14) of the valve b...

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Bibliographische Detailangaben
Hauptverfasser:	KIM, KYU CHUL, CHOI, YOUNG HWAN, SUK, SEUNG HUN
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	This invention provides a control valve for a cryogenic high pressure gas having a double plug structure which consists of: a valve body (10) with a gas inlet (12) and a gas outlet (16) on both sides; a bonnet (20) on the valve body (10); a cage (30) located in a middle flow path (14) of the valve body (10), having a gas inflow hole (32) formed on each side and connected to the gas inlet (12) and the gas outlets (16), respectively, and having a penetrating holes (34) formed on one side on top; a first plug (40) inserted into the cage (30) by having a guide groove (42) on the middle axis with the bottom open and an auxiliary flow path (46) connected with the guide groove (42) on one side of the bottom; and a second plug (50) inserted into the guide groove (42) of the first plug (40); and a stem (60) located on the middle axis of the bonnet (20) whose an extended part is fixed on the middle axis of the second plug (50) by penetrating the guide groove (42) of the first plug (40). 본 발명은, 양측 각각에 가스유입로(12) 및 가스배출로(16)가 마련되는 밸브바디(10)와; 밸브바디(10)의 상부에 마련되는 본넷(20)과; 양측 각각에 형성되되 밸브바디(10)의 가스유입로(12) 및 가스배출로(16) 각각과 연통되는 가스유입공(32) 및 가스배출공(36)과, 상부 일측에 형성되는 관통공(34)이 마련되어 밸브바디(10)의 중앙유로(14)에 장착되는 케이지(30)와; 하방이 개구되어 중심축상에 형성되는 가이드홈(42)과, 하부 일측에 형성되되 가이드홈(42)과 연통되는 보조유로(46)가 마련되어 케이지(30) 내부에 삽입되는 제1플러그(40)와; 제1플러그(40)의 가이드홈(42)에 삽입되는 제2플러그(50)와; 본넷(20)의 중심축상에 위치하며, 연장되는 일단부위가 제1플러그(40)의 가이드홈(42)을 관통하여 제2플러그(50)의 중심축에 고정결합되는 스템(60)을; 포함하여 이루어지는 극저온 초고압가스의 제어밸브를 제공한다.