COOLING WATER FLUX CONTROL SYSTEM OF CNG REGULATOR

摘要

PURPOSE: A cooling water flow control system of a compressed natural gas regulator is provided to detect the temperature of CNG(Compressed Natural Gas) discharged from a regulator in real time and easily open/close a cooling water discharge pipe through a flow control valve. CONSTITUTION: A cooling water flow control system of a compressed natural gas regulator comprises a flow control unit(20), a gas temperature sensing unit(10), and a flow control valve. The flow control unit controls the flow rate of cooling water in a regulator of a CNG vehicle according to the temperature of CNG discharged from the regulator. The gas temperature sensing unit is connected to the flow control unit and detects the temperature of CNG discharged from the regulator. The flow control valve is connected to the flow control unit and controls the flow rate of discharged cooling water according to control signals of the flow control unit. The flow control unit outputs a valve closing signal when the CNG temperature sensed by the gas temperature sensing unit is over a range of 30~35°C and a valve opening signal when the CNG temperature is less than the range.