Air Diaphragm Pump with Membrane Rupture Alarm Device
2023-03-28
The working principle of this alarm is as follows: The pump is equipped with a first set of membranes (12, 13) and a second set of membranes (16, 17) on its left and right sides. The first set of membranes is in contact with the liquid, and a sealed cavity (15) is formed between the first and second sets of membranes. During operation, when the first set of membranes ruptures, the liquid enters the sealed cavity. The liquid then flows through the pipeline connected to the sealed cavity and enters the liquid induction cylinder. The sensor inside the induction cylinder sends a signal, which can be connected to PLC or other control components for signal feedback, enabling automatic control functions such as cutting off the pump's air supply.
The pump structure is the same as that of the inductive alarm device. The difference is that a pressure joint is installed in the sealed cavity (15) between the first set of membranes (12, 13) and the second set of membranes (16, 17), and an electric contact pressure gauge is connected to the joint. When the first set of membranes ruptures, the liquid flows out of the sealed area and enters the pressure gauge. When the pressure reaches the set value, the pressure gauge sends an alarm signal and a control signal. Users can thereby achieve pump control and alarm functions.
