Core Tip: The pneumatic diaphragm pump is a new type of conveying machine, which is a new type of pump in China. Using compressed air as the power source, for various corrosive liquids, liquid with particles, high viscosity, volatile, flammable, highly toxic liquid, can be exhausted.
Pneumatic diaphragm pump is a new transport machinery, is currently a relatively new pumps. Using compressed air as the power source, for various corrosive liquids, liquid with particles, high viscosity, volatile, flammable, highly toxic liquid, can be exhausted.
The pneumatic diaphragm pump is available in four materials: plastic, aluminum alloy, cast iron, and stainless steel. The diaphragm pump uses nitrile rubber, neoprene rubber, fluororubber, polytetrafluoroethylene, and polytetraethylene ethylene according to different liquid media. To meet the needs of different users. It is placed in various special occasions to pump a variety of media that can not be pumped by conventional pumps, and has achieved satisfactory results.
First, the pneumatic diaphragm pump is suitable for occasions
Due to the above characteristics of the pneumatic diaphragm pump, the diaphragm pump in the world has gradually invaded the market of other pumps since its birth, and is absolutely dominant, while in other industries, such as environmental protection, wastewater treatment, construction, sewage, Refinement is expanding its market share and has an irreplaceable position as other pumps. The advantages of pneumatic diaphragm pumps are:
1. Due to the air power, the flow rate is automatically adjusted with the change of back pressure (outlet resistance), suitable for medium
High viscosity fluid. The working characteristics of the centrifugal pump are set on the basis of water. If it is used for a fluid with a slightly higher viscosity, a reducer or a frequency converter is required, and the cost is greatly improved. The same is true for the gear pump.
2. The use of pneumatic pumps in flammable and explosive environments is reliable and low cost, such as the delivery of fuel, because: *, it is impossible to generate sparks after grounding;
Second, no heat is generated during the work, and the machine will not overheat;
Third, the fluid does not overheat because the diaphragm pump has less agitation of the fluid.
3. In places with poor work, such as construction site, industrial and mining wastewater discharge, due to impurities in the sewage and complex
Miscellaneous, the pipeline is prone to blockage, so that the load on the electric pump is too high, and the motor heats up. The pneumatic diaphragm pump can pass through the particles and the flow rate is adjustable, and the pipe will automatically stop to unblock when it is blocked.
4. In addition, the diaphragm pump is small in size, easy to move, does not require a foundation, and has a small footprint, which is simple and economical. Can be used as a mobile material transfer pump.
5. In hazardous and corrosive materials handling, the diaphragm pump completely separates the material from the outside world.
6. Or in some experiments to ensure that no impurities contaminate the raw materials.
7. It can be used to transport fluids with relatively unstable chemical properties, such as photosensitive materials, flocculation liquids, etc. This is because the diaphragm
The pump has low shear.
Second, the working principle of pneumatic diaphragm pump
1. Compressed air is the power.
2. It is a positive displacement pump caused by the reciprocating deformation of the diaphragm. The working principle is similar to that of the plunger pump.
The characteristics of the working principle of the membrane pump, so the diaphragm pump has the following characteristics:
(1) The pump will not overheat: the compressed air is used as the power, and it is a process of expansion and heat absorption when exhausting. When the pneumatic pump works, the temperature is reduced, and no harmful gas is discharged.
(2) No spark is generated: the pneumatic diaphragm pump does not use electric power for power, and prevents static sparks after grounding.
(3) It can pass through the liquid containing particles: because it is volumetric and the inlet is a ball valve, it is not easy to be blocked.
(4) The shearing force on the material is extremely: how to suck in when working, so the agitation of the material is small, suitable for the transport of unstable substances.
(5) The flow rate can be adjusted, and the throttle valve can be added to the material outlet to adjust the flow rate.
(6) Self-priming function.
(7) It can be airborne without danger.
(8) Can work diving.
(9) The fluids that can be transported are extremely wide, from low viscosity to high viscosity, and corrosive.
(10) There is no complicated control system, no cables, fuses, etc.
(11) Small size, light weight and easy to move.
(12) It is easy to maintain without lubrication, and it will not pollute the working environment due to dripping.
(13) The pump is always efficient and will not be degraded by wear.
(14) 100% energy utilization, when the outlet is closed, the pump automatically stops, setting movement, wear, overload, and heat.
(15) There is no dynamic seal, and maintenance is easy to avoid leakage. There is no dead point when working.
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