There are significant differences between Roots blowers and Roots vacuum pumps in multiple aspects, and the following are the main differences between the two:
1、 Working principle
1. Roots blower: By means of two interlocked impellers, the gas is sucked in and compressed and transmitted through the impellers, resulting in an increase in pressure before being discharged from the outlet. Roots blower is mainly used for blowing positive pressure, which is a fan equipment that relies on mechanical energy to increase gas pressure and discharge gas.
2. Roots vacuum pump: By operating the Roots impeller, gas flows into the chamber from the inlet and is compressed multiple times before being discharged to improve the vacuum degree. Roots vacuum pump is mainly used for suction negative pressure, which is used to transport fluids or increase fluid pressure.
2、 Purpose:
1. Roots blower: commonly used for conveying low-pressure gas and gas pressurization, it is a type of wind powered conveying mechanical equipment. In the industrial field, Roots blowers are widely used to transport large amounts of gases, dust, particulate matter, and other substances, such as ventilation, air purification, gas transportation, etc.
2. Roots vacuum pump: It is used to transport gases to high vacuum levels and is a type of vacuum pump. Roots vacuum pumps are widely used in various fields such as petroleum, chemical, plastic, pesticide, vacuum metallurgy, food, and pharmaceutical industries, and are particularly suitable for use in vacuum systems that require high pumping speeds at low inlet pressures.
3、 Selection and sealing
1. Selection: There will be different samples for Roots blowers and Roots vacuum pumps when selecting, because the models and pressures are different, so there are also differences for each model.
2. Sealing: The sealing method of Roots vacuum pumps requires stricter requirements, as the quality of sealing directly affects the vacuum degree of Roots pumps. If the vacuum degree cannot reach the pressure, it will also be affected. However, the sealing requirements for Roots blowers are relatively low.
4、 Installation and Pressure Boosting
1. Roots blower: No need to gradually increase pressure, pressure can be directly increased through Roots blower.
2. Roots vacuum pump: If a higher negative pressure is required, a front-end pump needs to be installed to gradually increase the pressure. The use of Roots pumps to increase negative pressure can easily cause equipment damage.
In summary, there are significant differences between Roots blowers and Roots vacuum pumps in terms of working principles, applications, selection and sealing, as well as installation and pressure boosting. Therefore, when selecting and using, it is necessary to make choices based on specific application scenarios and requirements.
