FFU High Efficiency Filter Requirements
FFU high-efficiency filter is one of the important components in the clean room, and its performance directly affects the guarantee of clean room air quality. In order to ensure that FFU high-efficiency filter can achieve the expected filtering effect and service life, the following are the FFU High Efficiency Filter Requirements.
----------------------------Filtration efficiency----------------------------
FFU high-efficiency filter should use HEPA (high-efficiency air filter) or ULPA (ultra-high-efficiency air filter) filter, which can effectively filter fine dust particles of 0.3μm (micrometer). Depending on the use occasion, the filtration efficiency is required to reach 99.95% (H13 level), 99.995% (H14 level) or 99.9995% (U15 level).
----------------------------Structural design----------------------------
Ffu filter fan unit should adopt a partition-free design to reduce noise and improve air circulation efficiency.
The connection between the filter and the frame should be firm to ensure that the filter will not loosen or fall off during operation.
The filter frame should be made of high-quality materials with good sealing performance to prevent dust particles from leaking.
----------------------------Installation and maintenance----------------------------
During the installation process, the ffu fan high-efficiency filter must ensure the tightness between it and the clean room wall or ceiling to prevent air leakage.
The filter should be installed in a suitable position for easy maintenance and replacement.
The front-end primary and medium-efficiency filters should be cleaned or replaced regularly to ensure the service life of the FFU high-efficiency filter.
----------------------------Operation performance----------------------------
The FFU high-efficiency filter should have a stable air volume and wind speed to ensure the air quality in the clean room.
During the operation of the filter, low noise should be maintained so as not to affect the normal operation of the clean room.
The filter should have a high pressure resistance and can work normally in harsh environments.
----------------------------Quality assurance----------------------------
The FFU high-efficiency filter should comply with relevant national standards and requirements.
The product should undergo strict quality inspection to ensure filtration efficiency and safety.
The supplier should provide comprehensive after-sales service, including product replacement, maintenance and technical support.
The requirements for hepa fan filter unit cover filtration efficiency, structural design, installation and maintenance, operation performance and quality assurance. Only FFU high-efficiency filters that meet these requirements can ensure the air quality in the clean room and provide a good working environment for various clean places.
----------------------------Precautions for use of FFU----------------------------
Fan filter unit, referred to as "FFU", is a high-efficiency filter air outlet with its own blower (shellless blower). It, together with its dedicated keel system, pressurized blower, cooling coil, fresh air system and special lamps, constitutes the ffu hepa filter system. That is, the fan and filter (high-efficiency filter or ultra-high-efficiency filter) are combined to form a terminal that can provide power. In the past, the air outlet of the high-efficiency filter with a fan, self-purifier, laminar flow hood, etc., which were commonly used in clean engineering, are all types of FFU. There are the following points for precautions when selecting and installing FFU.
FFU fan filter unit manufacturer | FFU price | FFU parameters.
----------------------------Noise control----------------------------
FFU fans are generally used in parallel for several or even dozens of units. When designing, the superposition of FFU noise should be considered to ensure that the "Noise level in the clean room (air state), non-unidirectional clean room should not be greater than 60dB, unidirectional and mixed flow clean room should not be greater than 65dB" is clearly stipulated in the "Clean Room Factory Design Specification GB50073-2001". Therefore, when choosing a fan, it is best to choose a high-performance, extrusion-type, direct-drive rear radial blade fan, which can reduce the overall noise.
----------------------------FFU fan filter unit manufacturer | FFU price | FFU parameters, fan housing selection----------------------------
When choosing the FFU fan housing structure, not only should we consider avoiding fan leakage and eliminating damage during transportation and handling, but also consider the ability to disinfect with disinfectants and the environment in which the fan filter unit for clean room is used. Therefore, it is best to use stainless steel or aluminum alloy materials as the housing.
----------------------------FFU fan filter unit manufacturer | FFU price | FFU parameters, selection of keel frame----------------------------
Since the fan filter unit of FFU is directly installed between the ceiling frames, in order to make the filter easy and quick to replace, and to keep the hepa ffu fan running balanced, and reduce the probability of installation imbalance. Therefore, professional matching keel frames are generally considered. This keel frame is a steel section that is mechanically cold-rolled into a special geometric shape (U-shaped). The metal surface is treated with anti-corrosion (such as electrostatic spraying, hot and cold galvanizing, epoxy, etc.) according to its environment, which can ensure the strength of similar channel steel and meet the operation requirements.
----------------------------FFU fan filter unit manufacturer | FFU parameters, selection of control method----------------------------
Currently, FFU generally uses single-phase multi-speed AC motors, three-phase multi-speed AC motors and DC motors. The power supply voltage of the motor is roughly 110V, 220V, 270V, and 380V. The control methods are mainly divided into the following categories:
Multi-speed switch control system: This system only includes a speed control switch and a power switch built into the ffu clean room. Since the control components are built into the FFU and are distributed in various locations in the clean room ceiling, the staff must adjust the FFU on site through the toggle switch, which is extremely inconvenient to control, and the adjustable wind speed range of the Ffu Hepa Filter is limited to a few gears. The advantages of using a multi-speed switch control method are simple control and low cost, but there are many defects: such as: high energy consumption, inability to smoothly adjust the speed, no feedback signal, and inability to achieve flexible group control.
Continuous speed adjustment control: Compared with the multi-speed switch control method, this system's continuous speed adjustment control has an additional continuous speed regulator, which makes the ffu fan filter unit speed continuously adjustable, but at the same time sacrifices the motor efficiency, making its energy consumption higher than the multi-speed switch control method.
Computer control: Compared with the previous two methods, this system has advanced functions in computer control: it can not only adopt a distributed control method, which can easily realize the centralized monitoring and control of Ffu Filter, but also can easily realize the single, multiple and partition control of FFU. In addition, the control system can be set up with a reserved communication interface to communicate with the host computer or the network, thereby realizing remote communication and management functions.
Remote control: As a supplement to the computer control method, the remote control method of this system can use a remote control to control each FFU, which complements the computer control method. These control methods should be selected according to the actual situation.
----------------------------FFU price | FFU parameters, maintenance and management of FFU----------------------------
When using FFU air supply, it is often not a single device but dozens or hundreds of FFU High Efficiency Filter Requirements arranged on the ceiling, which brings certain difficulties to maintenance and management. Generally, high-efficiency filters are replaced from the clean room, and most fans need to be maintained at the top of the keel frame (inside the static pressure box). However, if the static pressure box does not have enough height to maintain the fan from the inside, then it is necessary to consider the feasibility of maintaining the fan from inside the clean room. In short, when applying Hepa Ffu, it is necessary to consider the actual situation to achieve the purpose of retaining its characteristics and reducing costs.
----------------------------Introduction to modular clean room-FFU fan filter unit----------------------------
Ffu air purifier feature description
Low energy consumption, high performance, and reduced operating costs
Adopting high-reliability direct-drive backward-inclined blade fans, it is more efficient, lower noise, more durable, and more energy-saving.
Perfect structure, low height, uniform wind speed
Scientific air duct design, low resistance, low noise, and effective saving of technical mezzanine space.
Flexible design to meet diverse needs
Strong non-standard design capabilities to quickly meet customers' diverse needs. Not only can the external dimensions be changed to adapt to various GRID systems, but also timely respond to customers' changes in the outer box material, special power supply or fan configuration;
Safe and user-friendly design
The high-strength box can be walked to ensure the safety of installation or maintenance personnel, and can be remotely monitored and adjusted for easy operation;
Multiple safety protection devices
Equipped with overcurrent relays, motor protection devices, fault display lights, fault signal circuits, and can be equipped with temperature protectors, fuses, motor circuit breakers, etc. as needed.
Keywords: hepa filter ffu | price ffu hepa filter | price industries ffu | price industries ffu | ulpa fan filter unit | ffu filter fan unit
