CHECK VALVE WITH BUILT-IN LIQUID SEAL PREVENTION MECHANISM

PROBLEM TO BE SOLVED: To provide a check valve with a built-in liquid seal prevention mechanism for preventing a collecting pipe from falling in liquid sealing condition.SOLUTION: The check valves 1 with a built-in liquid seal prevention mechanism has check valves 17 operating and preventing reverse...

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Bibliographische Detailangaben
Hauptverfasser:	SUGANOBU SATOSHI, NAKAMURA MUTSUMI
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED,LIQUEFIED, OR SOLIDIFIED GASES FIXED-CAPACITY GAS-HOLDERS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING STORING OF DISTRIBUTING GASES OR LIQUIDS TAPS THERMAL INSULATION IN GENERAL VALVES VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED ORSOLIDIFIED GASES WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a check valve with a built-in liquid seal prevention mechanism for preventing a collecting pipe from falling in liquid sealing condition.SOLUTION: The check valves 1 with a built-in liquid seal prevention mechanism has check valves 17 operating and preventing reverse flow to LP gas containers 3, 5, 7, 9 sides when the pressure of the LP gas container 3, 5, 7, 9 sides become lower than the pressure of the collecting pipe 11 side and a pressure difference between the pressure of the LP gas containers 3, 5, 7, 9 sides and the pressure of the collecting pipe 11 side exceeds the first set value and a relief valve 19 operating and allowing the reverse flow when the above pressure difference exceeds the second set value greater than the first set value. A through-hole 29 is formed in the check valves 17 and the relief valve 19 has a valve body 31 movably arranged in the through-hole 29 of the check valves 17. The valve body 31 is located so as to seal one end of the through-hole 29 when the above pressure difference does not exceed the second set value and moves in a direction opening the one end of the through-hole 29 when the above pressure difference exceeds the second set value.