Gas Filling Equipment and control method of Hydraulic compressed natural gas filling

摘要

A Hydraulic CNG Filling Equipment includes a Hydraulic Power Unit, a control unit and at least one Unit of supply of CNG.The Hydraulic Power Unit comprises a Tank for storing normal pressure Hydraulic pump, a Hydraulic closed circuit to supply the pressurized Unit to supply CNG Pump closed circuit has a First Port MediumA Second means of Port and an inclined plate to control the Working States of the Ports of the first and second half.The Hydraulic Power Unit also comprises a Reversing Valve to change the position of the inclined Plate, a Supply pipe, through which the first and second Ports of the pump closed circuit are connected to the Tank, a First Water Pipe Lica,Connected between the first port and a First filling Pipe and Return of medium; and a Second Hydraulic pipe, Connected between the second port and a Second filling Pipe and return.The power consumption of the Hydraulic pump can be significantly reduced using the CNG Filling Equipment and a control method of Hydraulic filling of gas used there.