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Comparison and analysis of AC FFU and DC FFU in clean workshop

Views: 0 Author: Site Editor Publish Time: 2020-08-25 Origin: Site

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FFUThe full name in English is: Fan Filter Unit, and the Chinese is the fan filter unit group. The FFU fan filter unit can be modularly connected and used. FFU is widely used in clean rooms, clean workbenches, clean production lines, assembled clean rooms and local 100-level applications. FFU is equipped with primary and high-efficiency two-stage filters. The fan sucks in air from the top of the FFU and filters it through primary and high-efficiency filters. The filtered clean air is sent out at a uniform speed of 0.45M/S±20% on the entire air outlet surface.

As the air filter unit, the FFU unit is divided into DC and AC. Generally speaking, the electronic factory that purchases and uses FFU in large quantities usually uses DC FFU, while the local laminar flow of pharmaceutical factories usually uses AC FFU. So what is the difference between these two FFUs themselves? Today we will discuss it together.

Comparative analysis of AC and DC FFU systems:

1. CommunicationFFU

Exchange FFU
-	AC electronic speed control	AC variable voltage speed regulation
advantage	Stepless speed regulation, continuous wind speed	Low noise, suitable for high-power fans
Disadvantage	Loud noise, only suitable for low-power fans	Adjust the classification, the wind speed is not continuous

2. Direct currentFFU

Using a DC motor, the operating status of the fan can be centrally controlled and displayed through a computer equipped with control software.

3. Comparative analysis of AC FFU and DC FFU system

Exchange FFU	DC FFU
Suitable for FFU below 100 units	Suitable for more than 100 FFU
AC FFU system	DC FFU system
Motor mechanical efficiency is about 60%	Motor mechanical efficiency is about 80%
High heat loss	The heat loss is only 1/3 of the AC form
Small initial investment	The initial investment is relatively high and can be recovered within a few years
High energy consumption and high operating costs	Low energy consumption, low operating cost
Simple system and complex control	Complex system and simple control
Starting current is about 3 times of working current	Starting current is less than operating current
Low initial investment	High initial investment

FFU Shandong Xinli Purification FFU Shandong snyli Purification FFU DC FFU Exchange FFU Zibo Xinli Purification Fan Filter Unit Unit Zibo snyli Purification Fan Filter Unit Unit