• Suzhou DAAO

Fan filter unit miniaturization, convenient installation and reduced workload

Short Description:

The full English name of FFU is fan filter unit, and the Chinese professional term is fan filter unit. FFU fan filter screen unit can be used in modular connection (of course, it can also be used separately.) FFU is widely used in clean rooms, clean worktables, clean production lines, assembly clean rooms and local class 100 applications.The fan filter air supply unit FFU provides high-quality clean air for clean rooms and micro-environments of different sizes and different cleanliness levels. The product is equipped with a fan, which is easy to install and maintain.


Product Detail

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Product Description

The full English name of FFU is fan filter unit, and the Chinese professional term is fan filter unit. FFU fan filter screen unit can be used in modular connection (of course, it can also be used separately.) FFU is widely used in clean rooms, clean worktables, clean production lines, assembly clean rooms and local class 100 applications.The fan filter air supply unit FFU provides high-quality clean air for clean rooms and micro-environments of different sizes and different cleanliness levels. The product is equipped with a fan, which is easy to install and maintain. It can be easily matched with any ceiling frame to meet the requirements of cleanliness class 100, 10 and 1. It is widely used in various industrial and biological clean rooms. Fan filter air supply unit FFU adopts single-phase or three-phase high-efficiency, long-life and maintenance-free motor, and provides optional variable speed controller and electronic commutation electric motor, which can reduce energy loss and cooling load, thereby reducing Operating costs. The high total static pressure value can be achieved under the rated air volume, and the low-resistance non-partition filter, combined with the high total static pressure of the fan, can provide an external static pressure of 50~100Pa under the rated airflow.

FFU is equipped with primary and high-efficiency two-stage filter screen. The fan sucks the air from the top of the FFU and filters it through the primary and high-efficiency filters. The filtered clean air is sent out at a uniform speed of 0.45m/s ± 20% of the wind speed on the whole air outlet surface (it is OK to think big or small, as long as you want, someone can do it). It is suitable for obtaining high-level clean environment in various environments. It provides high-quality clean air for clean rooms and microenvironments of different sizes and cleanliness levels. In the new clean room and clean plant renovation, the cleanliness level can be improved, the noise and vibration can be reduced, and the cost can be greatly reduced. It is easy to install and maintain. It is an ideal component for a clean environment.

FFU application

Generally, the clean room system includes: air duct system, FFU system and axial flow fan system.

Advantages over duct systems

1. Flexibility. 2.Reusability. 3. Nnegative pressure ventilation. 4. Shortening construction period. 5. Reducing operation cost. 6. Saving space.

FFU layout is usually adopted for clean rooms with a cleanliness level of 1000 (fs209e standard) or above iso6. FFU is also commonly used for locally purified environment, clean cabinet, clean workbench, etc.

Why use the FFU system?

The following advantages of FFU make it quickly applied:
1. Flexible and convenient replacement, installation and movement
FFU has its own power and is self-contained and modular. The supporting filter is easy to replace, so it is not limited by the area; In the clean workshop, it can be controlled by zones and replaced and moved as required.

2. Negative pressure ventilation
This is the unique feature of FFU. Because it can provide static pressure, the clean room is positive pressure relative to the outside, so that the external particles will not be leaked into the clean area, making the sealing very simple and safe.

3. Shorten construction period
The use of FFU saves the production and installation of air duct and shortens the construction cycle.

4. Reduce operating costs
Although the initial investment in the selection of FFU is higher than that in the use of air duct ventilation, it has outstanding characteristics of energy saving and maintenance free in the later operation.

5. Save space
Compared with other systems, FFU system occupies less floor height in the air supply static pressure box, and basically does not occupy the clean room space.

Classification of FFU

1. Classification according to overall dimensions of chassis
According to the distance from the center line of the ceiling keel used to install the unit, the module size of the chassis is mainly divided into: 1200*600, code 42; 1200*900, code 43; 1200*1200, code 44; 600*600, code 22; 750*1500, code 25; Other customer customized non-standard sizes (CS).

2. FFU is classified according to different chassis materials
According to different classifications of chassis materials, it is divided into standard coated steel plates (including galvanized, aluminized zinc, plastic sprayed, etc.), code g; Stainless steel plate, code s; Aluminum plate (aluminum alloy plate), code a; Other materials, code o.

3. FFU is classified according to motor mode
According to the classification of motor mode, it can be divided into AC motor and brushless DC motor. AC single-phase motor code is A1; Code of AC three-phase motor is A3; The code of DC brushless motor is EC.

4. FFU is classified according to different control modes
AC power supply units are divided into single working condition units according to different unit control modes, represented by s; Multi working condition step by step control unit, represented by M; Stepless control unit, including voltage regulation or frequency conversion control, can be defaulted.

5. FFU is classified according to the static pressure of the unit
It can be divided into standard static pressure type and high static pressure type according to the static pressure of the unit. Standard static pressure type code is s; The code of high static pressure type is h. Standard static pressure type this item can be defaulted.

6. FFU varies according to filter efficiency
According to the efficiency of the high-efficiency filter of the unit, it can be divided into high-efficiency filter, code: H; Ultra high efficiency filter, code u; If there is a coarse pre filter code P at the unit inlet, it can be defaulted if there is no pre filter.

FFU is mainly composed of four parts

1. Box body
Its materials are commonly galvanized aluminum alloy coated steel plate, aluminum alloy and stainless steel. The first function is to support the fan and air guide ring, and the second function is to support the deflector.

2. Deflector
The air flow equalizing device is built inside the box and around the lower part of the fan.

3. Fan
There are three types of ac/1phase, ec/1phase and ac/3phase.

4. Control unit
For AC FFU, five speed governor or stepless governor is commonly used; The control chip of the DC system is embedded in the motor, and the remote control is realized with the help of special control software, computer, control gateway and network circuit.

Technical parameters

Model JCF-575 JCF-875 JCF-1175
Noise (dB) (A) ≤55
Average surface wind speed (m/s) within the range of 0.36~0.54
Filter pressure loss (Pa) 90~120
External static pressure (Pa) 50~100
Dimensions W*D*H(mm) 1175*575*320 1175*875*320 1175*1175*320
Rated air volume (m³/h) 1000 1500 2000
Power consumption (W) 110 145 180
Remarks This product can be customized according to customer needs (such as: material, size, etc.)

Fan filter unit1

Detail drawing

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Fan filter unit3
Fan filter unit7
Fan filter unit8
Fan filter unit4
Fan filter unit5
Fan filter unit6

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