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Working principle and advantages of pneumatic diaphragm pump

  • Categories:Industry News
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  • Time of issue:2018-10-25 17:26
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(Summary description)1. Since air is used as power, the flow rate is automatically adjusted with the change of back pressure (outlet resistance), which is suitable for medium and high viscosity fluids. The point of the centrifugal pump is set based on water. If it is used for a fluid with a higher viscosity, it needs to be equipped with a reducer or a frequency converter, and the cost is greatly increased. The same is true for gear pumps. 2. It is reliable and low-cost to use pneumatic pumps in flammable and explosive environments, such as the transportation of fuel, gunpowder, and explosives, because: first, it is impossible to generate sparks after grounding; second, there is no heat generation, and the machine will not Overheating; third, the fluid will not overheat because of the agitation of the fluid by the diaphragm pump

Working principle and advantages of pneumatic diaphragm pump

(Summary description)1. Since air is used as power, the flow rate is automatically adjusted with the change of back pressure (outlet resistance), which is suitable for medium and high viscosity fluids. The point of the centrifugal pump is set based on water. If it is used for a fluid with a higher viscosity, it needs to be equipped with a reducer or a frequency converter, and the cost is greatly increased. The same is true for gear pumps. 2. It is reliable and low-cost to use pneumatic pumps in flammable and explosive environments, such as the transportation of fuel, gunpowder, and explosives, because: first, it is impossible to generate sparks after grounding; second, there is no heat generation, and the machine will not Overheating; third, the fluid will not overheat because of the agitation of the fluid by the diaphragm pump

  • Categories:Industry News
  • Author:
  • Origin:
  • Time of issue:2018-10-25 17:26
  • Views:
Information
1. Since air is used as power, the flow rate is automatically adjusted with the change of back pressure (outlet resistance), which is suitable for medium and high viscosity fluids. The point of the centrifugal pump is set based on water. If it is used for a fluid with a slightly higher viscosity, a reducer or frequency converter is required, and the cost is greatly increased. The same is true for gear pumps.
2. It is reliable and low-cost to use pneumatic pumps in flammable and explosive environments, such as the transportation of fuel, gunpowder, and explosives, because: first, it is impossible to generate sparks after grounding; second, there is no heat generation, and the machine will not Overheating; thirdly, the fluid will not overheat because the diaphragm pump has the least agitation to the fluid.
3. In places with harsh construction sites, such as wastewater discharge from construction sites and industrial mines, due to the large amount of impurities and complex components in the sewage, the pipeline is easy to be blocked, which will cause excessive load on the electric pump, and the motor will be easily damaged due to heat. The pneumatic diaphragm pump can pass particles and has an adjustable flow rate. When the pipeline is blocked, it will automatically stop until it is unobstructed.
Pneumatic diaphragm pump
4. In addition, the diaphragm pump is small in size and easy to move, does not require a foundation, occupies a very small area, and is easy and economical to install. It can be used as a mobile material conveying pump.
5. In the treatment of hazardous and corrosive materials, the diaphragm pump can completely isolate the materials from the outside world.
6. Or ensure that no impurities contaminate the raw materials in some tests.
7. It can be used to transport fluids with relatively unstable chemical properties, such as photosensitive materials, flocculants, etc. This is because the shear force of the diaphragm pump is low and the physical impact on the material is small.
Second, the principle of pneumatic diaphragm pump
Pneumatic diaphragm pump
1. Compressed air is the driving force.
2. It is a positive displacement pump whose volume changes caused by the reciprocating deformation of the diaphragm. Its principle is similar to that of a plunger pump. Due to the characteristics of the principle of the diaphragm pump, the diaphragm pump has the following characteristics:
(1) Diaphragm pumps will not overheat: compressed air is used as power, and it is a process of expansion and heat absorption when exhausting. The temperature of pneumatic pumps is reduced, and no harmful gas is discharged.
(2) Diaphragm pumps will not produce electric sparks: Pneumatic diaphragm pumps do not use electricity as power, and prevent static sparks after being grounded
(3) Diaphragm pumps can pass liquids containing particles: because of the positive displacement type and the inlet is a ball valve, it is not easy to be blocked.
(4) The shear force of the diaphragm pump on the material is extremely low: it is how the time is sucked in and out, so the agitation of the material is minimal, and it is suitable for the transportation of unstable materials.
(5) The flow rate of the diaphragm pump is adjustable, and a throttle valve can be installed at the material outlet to adjust the flow rate.
(6) The diaphragm pump has the function of self-priming.
(7) Diaphragm pump can run dry without any danger.
(8) The diaphragm pump can be submerged.
(9) Diaphragm pumps can transport a wide range of fluids, ranging from low-viscosity to high-viscosity, and viscous from corrosiveness.
(10) The diaphragm pump has no complicated control system, no cables, fuses, etc.
(11) The diaphragm pump is small in size, light in weight and easy to move.
(12) Diaphragm pump does not need lubrication so it is easy to maintain and will not pollute the environment due to dripping.
(13) Diaphragm pump The pump can always maintain high efficiency and will not be reduced due to wear.
(14) One hundred percent of the energy of the diaphragm pump is used. When the outlet is closed, the pump will automatically stop, and the equipment will move, wear, overload, and heat.
(15) Diaphragm pump has no dynamic seal, easy maintenance to avoid leakage. There is no dead point.
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