A vacuum pump is one of the indispensable machines that perform a variety of industrial tasks. The applications for these include bottling, degassing, packaging, and drying, among many others. An industrial vacuum pump serves a fundamental role in the chemical industry, where critical processes take place. They come in many different styles and fall into several categories, so you must understand the differences between them to identify the ideal one for your specific need. There are differences in their operating mechanisms and the benefits that each of them presents. The following review explains three examples of vacuum pumps you can find in the chemical manufacturing industry.
Centrifugal Pump
The centrifugal pump is among the most popular types used in the chemical processing industry. They’re efficient as long as they’re kept within certain pressure ranges, and they come with a less complicated design and user interface. The pumps come at affordable costs compared to the others.
They have an operating mechanism that draws liquid substances to the system through pressure, a process that creates a vacuum. The principle exposes the pump to cavitation when the inlet pressure decreases, which can lead to poorer performance as well as several other issues if it’s not caught quickly. While this type of pump performs well when cared for, its suction capability is low, causing it to take longer before it can start pumping.
Positive Displacement Pumps
Positive displacement pumps are a broad category that contain cyclical pumps such as the piston pump, gear pump, and rotary vane. When it comes to handling fluids with high viscosity, this type of pump is more proficient. It can generate high pressure making it ideal for moving substances with excessive resistance. They can perform effectively in industries that deal with petrochemical, paints, and pharmaceuticals.
Liquid-Ring Vacuum Pump
Liquid-ring vacuum pumps are a type of positive displacement pump. The internal construction of liquid-ring vacuum pumps includes a liquid that helps in the operation mechanism. The pump comprises port plates and a casing, with a fluid ring made of a rotating impeller. When the system rotates, the fluid ring creates a chamber between the blades drawing gasses from the liquid via the pressure port. The liquid-ring vacuum pump is highly efficient, thus making it ideal for condensed vapor and wet gasses.
While there is a wide range of pumps in the chemical industry, you must understand the nature of chemicals to handle. There comes a time where the pump has to operate under harsh conditions. For example, when pumping liquids with compact materials. Choosing a vacuum pump comes with several considerations. Your ideal pump should be able to handle the properties of the substance you intend to process. You should consider factors such as corrosiveness, level of viscosity, and abrasion as well as other issues.
