【3D Process Flow】- Differences between Roots blowers and centrifugal blowers

Thread Content

【3D Process Flow】Summary Post – Useful for learning about the process flow: https://bbs.hcbbs.com/thread-5711616-1-1.html ---------------------------------------------------------- Rotary fans and centrifugal fans are akin to \"weightlifters\" and \"sprinters\" in the chemical industry. They are both used for blowing air, but their personalities are completely different: one is a tough guy who makes a \"thud thud thud\" sound, while the other is fast and makes a \"whoosh whoosh whoosh\" sound. To understand these two rivals clearly, we need to delve into their “hearts” (internal structure). 1. Roots Blower: A tough, forceful \"strongman\" type – \"No matter how many obstacles are in the way, I must get this air through!\" ”(Mandatory transmission). Principle: Positive Displacement. Imagine two gear shapes in the form of an “8” meshing and rotating inside. Action: With each rotation, they \"force\" a fixed volume of air (like wrapping dumplings) from the intake port to the exhaust port. Features: High pressure: Even if the pipe is blocked, it will keep pushing hard to get through, until the pipe bursts or the motor burns out (that’s why a safety valve must be installed!) ). Constant flow: The flow rate remains the same regardless of the rotation speed, and it is not affected by pressure. Loud noise: It has a pulsating exhaust sound of “thump, thump, thump,” similar to that of a tractor. Application scenarios: wastewater treatment aeration (pushing air to several meters below the water surface), pneumatic conveying (pushing flour through pipes).