Have you ever wondered what different types of vacuum pumps are used in industries? And how they work? And how they work? If the answer is yes, then this blog is for you! In this article, we will discuss the different types of vacuum pumps used in different industries.
Vacuum pumps is defined as a device that removes gas molecules, or water molecules from a particular enclosed space and leaves a vacuum behind. The vacuum is defined as the absence of air. So the vacuum pump removes air for air conditioning systems, or water for refrigeration systems to create a vacuum behind. A vacuum pump is a set of systems combined together for the application.
Vacuum pump are essential in various industrial applications. They’re used to remove air or gas from a confined space, such as an engine, machine, or tank. Different types of vacuum pumps have different benefits and weaknesses; it’s important to choose the right one for your application. For example, a vacuum pump used in manufacturing is usually more powerful and has a longer lifespan than one used in oil and gas production. It’s also important to know the specifications of the vacuum pump you’re considering, so that you can make the right choice.
Gas Transfer Pumps
Gas transfer pumps are used to move gas molecules from one location to another. They work by either transferring the motion of the gas molecules using kinetic action or positive displacement. These pumps can handle large volumes of air with ease and they are very efficient in vacuum transfer. Industries that use these types of pumps include chemical, petroleum, and even food processing plants.
Kinetic Transfer Pumps
Kinetic transfer pumps are used in various industrial applications to move gas or liquid around. These pumps use the energy of motion to create suction and move materials around. They come in different types, such as high speed blades and vapor introduction pumps. Working on the principle of momentum transfer, they use the energy of moving parts to pump fluid or gas. Kinetic transfer pumps are mainly used in industries like oil and gas, mining, power generation etc., where fast movement of materials is required.
Positive Displacement
The positive displacement vacuum pump is a kind of vacuum pump that uses moving parts (rotary or reciprocating parts) to move continuously in the pump chamber, and uses the periodic change of the pump chamber volume to complete the process of suction and exhaust, and the gas is compressed before being discharged. This kind of pump is divided into two types: reciprocating and rotary type.
- Reciprocating vacuum pump: It uses the reciprocating motion in the pump chamber to suck in, compress and discharge the gas. It includes diaphragm vacuum pump and piston vacuum pump.
- Rotary vacuum pump: It uses the rotor in the pump chamber to make rotating movement to suck in, compress and discharge the gas. It is also one of the most widely used vacuum pumps, including liquid ring pump, oil seal pump, roots pump, screw vacuum pump, scroll pump, claw pump, etc.
Entrapment Pumps
Entrapment pumps are vacuum pumps which capture gas molecules on the surfaces within the vacuum system. They operate at lower flow rates than vacuum pumps such as transfer pumps, and can provide extremely high vacuum (down to 10-12Torr). Capture pumps use cryogenic condensation, ionic reaction, or chemical reaction to capture gas molecules.
Industrial Manufacturing Operations
- Vacuum coating processes like physical vapor deposition (PVD) and chemical vapor deposition (CVD)
- Vacuum evaporation processes
- Load locks to transfer items between atmospheric and vacuum chambers
- Assembly of electronic items like light bulbs and tubes
- Plastic forming thermoforming operations
- Holding delicate items like glass or silicon wafers in position
- Lifting heavy objects like plate glass