What is pneumatic diaphragm pump? (Applicable industry of pneumatic diaphragm pump)

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What is pneumatic diaphragm pump? (Applicable industry of pneumatic diaphragm pump)

What is pneumatic diaphragm pump?

Pneumatic diaphragm pump is a new type of conveying machinery, using compressed air as power source, for all kinds of corrosive liquid, liquid with particles, high viscosity, volatile, flammable, highly toxic liquid, can be pumped out. Because of the above characteristics, so the pneumatic diaphragm pump since its birth is gradually invading the market of other pumps, and occupy a part of it. For example: spray painting, ceramics industry pneumatic diaphragm pump has occupied the dominant position, and in some other industries, such as environmental protection, wastewater treatment, construction, sewage, fine chemical industry is expanding its market share, and has the irreplaceable status of other pumps.

Pneumatic diaphragm pump is a new type of conveying machinery, is a new type of pump in China. Using compressed gas as power source, for all kinds of corrupt liquid, liquid with particles, high viscosity, volatile, flammable, highly toxic liquid, can be pumped out. Pneumatic diaphragm pump has four materials: plastic, aluminum alloy, cast iron, stainless steel. Pneumatic diaphragm pump according to different liquid media are made of butadiene rubber, neoprene rubber, fluorine rubber, PTFE, polytetrafluoroethylene. To meet the needs of different users. Placed in a variety of special occasions, used to pump a variety of conventional pump can not be pumped medium, have achieved satisfactory results.

Pneumatic diaphragm pump for which conditions?

1, due to the gas as the power, so the flow with the change of back pressure (outlet resistance) and active regulation, suitable for medium and high viscosity fluid. The working point of the centrifugal pump is set on the basis of water. If it is used for the fluid with slightly higher viscosity, it is necessary to support the reducer or frequency conversion governor, and the cost is greatly increased, so is the gear pump.

2, in flammable and explosive environment with pneumatic pump reliable and low cost, such as fuel transmission, because: grounding will not produce sparks; No heat is generated in the work, the machine will not overheat; The fluid will not overheat, because the pneumatic diaphragm pump on the fluid agitation is small.

3, in the harsh center of the site, such as construction site, industrial and mining waste water discharge, due to the impurities in the sewage and complex composition, the pipeline is easy to infarct, so that the electric pump will form a high load environment, the motor heating is easy to damage. Pneumatic diaphragm pump can pass particles and flow adjustable, active stop when the pipeline infarct.

4. In addition, the pneumatic diaphragm pump is small and easy to move, does not need foundation, covers a small area, and is easy and economical to install. It can be used as a mobile material conveying pump.

5, in hazardous, corrupt material processing, diaphragm pump can be completely isolated from the outside world.

6, or some experiments to ensure that there is no impurity pollution of raw materials.

7, can be used to transport chemical properties of relatively unstable fluid, such as: photosensitive materials, flocculant, etc. This is because the diaphragm pump has low shear force and little physical impact on the material.

Pneumatic diaphragm pump expansion heat absorption process and power source

Pneumatic diaphragm pump is a relatively new type of equipment, in the process of operation is mainly the use of its compressed air as a source of power, pneumatic diaphragm pump in processing, there are more types of materials to choose from, different materials of its equipment performance is not the same.

Pneumatic diaphragm pump in the installation of the need in some special occasions, in general, some of the conventional pump pumping is not able to carry out the suction medium, so have been a better use of the effect, since the birth of the product in the market occupies a certain position. The pneumatic diaphragm pump is widely used in the spray painting industry and ceramics industry in the market. The equipment is also gradually expanding the market in the sewage, chemical industry, petrochemical industry, coating industry and daily chemical industry. When the pneumatic diaphragm pump is working, it uses compressed air as the power equipment, which is very easy to change the volume in the reciprocating deformation process. Its main working principle is very close to that of the plunger pump. Pneumatic diaphragm pump in the exhaust equipment will appear expansion heat absorption process, so the working temperature of the equipment will be automatically reduced, so there will be no harmful gas exclusion, in the process of operation because it is not the use of electricity as power, so the equipment in the ground after the occurrence of electrical sparks.

Pneumatic diaphragm pump advantages

Pneumatic diaphragm pump has the quality of reliable long service life, low noise, small vibration, never crash, fine work and other six advantages, that is, can pump the flow of liquid, and transport some of the medium is not easy to flow, with self-priming pump, submersible pump, shield pump, mud pump and impurity pump and other conveying machinery many advantages.

1, the flow is spacious, through the performance is good, allow through the largest particle diameter up to 10 mm. Pumping mud, impurities, little wear to the pump;

2, pneumatic one-way diaphragm pump does not need irrigation water, suction up to 8.8 meters, head up to 84 meters, outlet pressure ≧8.4bar;

3, pneumatic one-way diaphragm pump no rotating parts, no shaft seal, diaphragm and other pumping medium and pump moving parts, workpiece medium is completely separated, the transmission medium will not leak outwards. So pumping toxic, volatile or corrosive media, will not cause environmental pollution and harm personal safety;

4. Head and flow can be adjusted stepless through the valve opening (air pressure adjustment between 1-8.4bar);

5, can be immersed in the medium to work;

6, no need to use electricity, safe and reliable use in flammable and explosive places;

7, pneumatic diaphragm pump has the advantages of simple structure, less wearing parts, simple structure, convenient installation and maintenance, pump transmission medium will not contact the valve, rod and other moving parts, unlike other types of pump due to the wear and tear of rotor, piston, gear, blade and other parts and the performance is gradually reduced;

8, easy to use, reliable work, open and stop simply open and close the gas valve, even if due to accidents and long time without medium operation or sudden stop pump will not be damaged, once overload, pump will automatically stop, with self-protection performance, when the load is restored to normal, and can automatically start running;

9, pneumatic diaphragm pump without oil lubrication, even idling, there is no effect on the pump, this is a major feature of the pump;

10, can transport viscous liquid (viscosity below 25000 cm).

Pneumatic diaphragm pump use precautions

Pneumatic diaphragm pump is compressed air as the power, through the diaphragm reciprocating deformation caused by volume changes of the positive displacement pump, its working principle is similar to the plunger pump. Pneumatic diaphragm pump is used in accordance with certain principles and ways, in accordance with certain instructions and precautions in the specific use of operating procedures, can produce important use role and contribution, play a good use value. The following points should be paid attention to when using pneumatic diaphragm pump operation: ensure that the largest particles contained in the fluid do not exceed the pump's largest safe passing particle diameter standard. Tighten the pump and the joint of the connecting pipe to prevent the electrostatic spark caused by the vibration of the pump. Use an antistatic hose. To periodically check and test the reliability of the grounding system, ensure that the grounding resistance is less than 100 ohms. Maintain good exhaust and ventilation, away from flammable, explosive and heat sources. The intake pressure should not exceed the maximum allowable operating pressure of the pump. Compressed air higher than the rated pressure of the pipeline pump may result in personal injury, loss of property and damage to the pump performance.

Electrostatic sparks may cause personal injury or property damage. Use a wire with a large cross-sectional area to ground the ground screw on the pump. Grounding requirements comply with local laws and regulations and some special requirements on site. Pump exhaust may contain solid objects, do not exhaust port to the work area or people, so as to avoid physical injury. When the diaphragm fails, the sewage pump will transport the material from the exhaust muffler ejection. Ensure that the pump pressure pipeline system can withstand the maximum output pressure, to ensure the multistage pump drive gas path system clean and normal working conditions. When transporting flammable and toxic fluids, connect the outlet to a safe place away from the work area. Please connect the exhaust port to the muffler with a smooth lining of at least 3/8" inner diameter.

The high pressure of the body may lead to serious personal injury and property losses. Please do not carry out any maintenance work on the pump and material pipe system when the pump is pressurized. If the rotor pump wants to do maintenance, first cut off the pump intake, open the bypass pressure relief mechanism to relieve the pipeline system, and slowly loosen the connected pipe joints. Such as the delivery of harmful and toxic fluid pump, fire pump, please do not send the pump directly to the manufacturer to repair. The liquid transfer part uses aluminum alloy material pump, please do not use to transport the liquid containing Fe3+ and halogenated hydrocarbon and other halogenated hydrocarbon solvent, it will cause corrosion and cause the pump body burst. Ensure that all parts in contact with the conveying body will not be corroded by the conveying fluid. Ensure that all operators are familiar with the operation and use of the pump safety precautions, if necessary, to allocate the necessary protective equipment. The correct use of the pump does not allow a long time of empty operation.