PURPOSE: To regulate a liquid level surely with a simple constitution by a method wherein a valve body is operated so as to press a valve seat when the liquid level of refrigerant solution has exceeded a predetermined range while the valve body is separated from the valve seat when the level has become lower than the predetermined range.
CONSTITUTION: Refrigerant solution flows into a liquid level regulator 5 through a refrigerant inflow pipe 34 branched from a refrigerant solution pipe. The liquid level regulator 5 is provided with a construction that a float 52 is floated on the refrigerant solution 7 in a cylindrical vessel 51. When the liquid level of the refrigerant solution has exceeded a predetermined range in the liquid level regulator 5, a valve body 54 is pushed against a valve seat 55 by the pressure head of the refrigerant solution in the refrigerant solution inflow pipe 34 whereby the valve 56 is brought into blockading condition. On the other hand, when the liquid level of the refrigerant solution 7 is lower than a predetermined range, the valve body 54 is pushed through a valve rod 53 connected by the gravity of the float 52 whereby a condition that a gap is provided between the valve body 54 and the valve seat 55 or the valve 56 is brought into opened condition.
HASHIMOTO NOBUYUKI
SOTANI JIYUNJI
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