The dry screw vacuum pump is used in several different fields. However, this technology is broadly used in the pharmaceutical and chemical industries. But it’s relatively new in the vacuum pump technology, which is mainly ruled by the liquid ring technology. However, the main difference is that the dry screw vacuum pump doesn’t require operating fluid to condense the process gas.
Principle of vacuum pump
In a dry screw vacuum pump, two screw motors are placed in the opposite direction, which helps in pumping the process gas trapped between the cylinder and the screw chambers, which gets transported to the gas discharge. In the chemical process vacuum pump, cooling can be carried out through a high-quality air cooling process, resulting in uniform temperatures throughout the cooling process as it eliminates the need for an indirect cooling process or cooling water, which further wipes out cold spots. Meanwhile, the modern screw vacuum pump uses pitch screws, leading to pre-compression of the gases in the pump.
Advantages of dry vacuum pumps
The dry vacuum pump is used in several different fields. Here are the following advantages of dry vacuum pumps are:
- High vacuum level
- It follows dry compression, which means no reaction or contamination occurs between operating fluid and possess gas.
- Energy efficient
- The chemical process vacuum pump is designed to function for almost all process gases due to its perfect temperature regulation and material selection.
Disadvantages of dry screw vacuum pumps
Here are the following disadvantages of dry screw vacuum pumps.
- As per the dry vacuum pump manufacturers, the dry screw vacuum pump can’t be used with those process gases which are likely to react under high temperature.
- Dry vacuum pumps are also sensitive to tiny particles which can enter the system.
In short, a dry vacuum pump is widely used in the chemical process due to its advantage of functioning under the high-temperature regulation and material used for making the dry vacuum pump. However, for better functioning under any chemical system dry vacuum pump which uses different compression systems must use various coatings to regulate better functioning.
