UNDERGROUND WATER SAMPLING SYSTEM TO PREVENT CONTAMINATION, CAPABLE OF SAMPLING UNDERGROUND WATER BY PUMPING THE UNDERGROUND WATER THROUGH A DISCHARGING PIPE

摘要

PURPOSE: An underground water sampling system to prevent contamination is provided to facilitate sampling underground water inside a grove box using both hands by controlling the opening time of a solenoid valve by adjusting a foot switch through a foot.;CONSTITUTION: An underground water sampling system(100) to prevent contamination comprises a first connector, a needle valve, a depressurization valve, a check valve, a solenoid valve, a flow cell and a glove box. The first connector(103) is connected to the discharge tube. The needle valve(105) is connected to the rear end of the first connector and controls the output flux of the underground water. The depressurization valve(104) is connected to the branch pipe between the first connector and the needle valve and the first connector and reduces the pressure of the underground water. The check valve(108) is connected to the rear end of the depressurization valve and prevents the backflow of the underground water sample. The solenoid valve(111) is connected to the branch pipe between the check valve and the depressurization valve. The flow cell(109) is installed on the rear end of the check valve. The flow cell comprises an inlet and an outlet. The glove box(112) is installed on the rear end of the solenoid valve.;COPYRIGHT KIPO 2010