Principles of diaphragm pump: It is a displacement pump which casues volume change due to reciprocating deformation of mebrane. The working principle is similar to that of plunger pump. Due to the features of diaphragm pump working principle, it has the following characteristics: the pump does not overheat; it uses compressed air as power so it is in a process of expansion and heat absorption during exhausting air; the temperature of pneumatic pump in working is reducing without any harmful gas. no electric spark; becasue pneumatic diaphragm pump is not driven by electricity, it will not generate electrostatic spark after ground connection and liquid containing particles can also get through because the working type is volumetric and the entrance is ball valve, it is not easy to block. Flow can be adjusted. You can add a throttle valve at the outlet of the material to adjust the flow rate. with self-priming function. Dry run is ok and there is no danger. it can work under water. The fluid that can be transported is various, from low viscosity to high viscosity, and from the corrosive to the sticky. No complex control systems, no cables, fuses, etc. Small size, light weight, easy to move. It does not need lubrication so the maintenance is simple and will not pollute the work environment due to leakage. Pump can always remain efficient, even in wear. Adequate use of energy. The pump will shut down automaticly when the exit is closed. equipment movement, wear, overload, heat. Work without dead point. Pneumatic diaphragm pump is a new type of transport machine, and one of the most innovative domestic pump. Using compressed air as power, it can pump and absorb all kinds of corrosive liquid, liquid with particles, high viscosity, volatile, flammable, highly toxic liquid.
Diaphragm pump, also known as the control pump, is the main type of actuator, changing fluid flow by means of power operation by accepting control signal output from modulation unit. Diaphragm pumps are generally composed of the actuator and valve. Using compressed air as power, it can pump and absorb all kinds of corrosive liquid, liquid with particles, high viscosity, volatile, flammable, highly toxic liquid.
Reciprocating diaphragm pump is powered by electromotor, driving bent axle, connecting rod and crosshead through coupler and speed reducer to transfer rotational motion into rectilinear motion, and driving piston in reciprocating motion, transferring hydraulic pressure into hydraulic cylinder diaphragm chamber through hydraulic pipe. When piston move backward, it will absorb the diaphragm in diaphragm chamber backward by means of oil medium. Open feed valve with the help of pulp inlet intrusion (feeding) pressure, and then absorb pulp to fill diaphragm chamber. When piston moves forward, it will push the diaphragm in diaphragm chamber forward by means of oil medium. Start bleeder valve to transport pulp to outlet pipe. The reciprocating motion of piston makes the start and stop of suction anddrainage valve in pump head assembly reach the purpose of conveying medium.
