What industries are fan boxes suitable for? We must first distinguish the purpose of air
Direct answer: Fan boxes can be used in almost all industries that require air supply or exhaust, but the 'industry' itself cannot directly determine the selection. What really affects the configuration is the purpose of the air: whether it is general ventilation, air conditioning air supply, clean air supply, equipment heat dissipation or process exhaust. It is also called a fan box. It transports clean air and transports dusty air. The requirements for materials, sealing, motor protection and filter sections are completely different. First distinguish the purpose of air, and then talk about industry applicability, so that the selection will not go astray.
Aili Industry is discussingWhen purchasing fan box products , we usually first ask about the location, air condition, air volume, resistance and operating time of the equipment service, rather than asking which industry the customer belongs to first.
They are both supplying air, but the technical requirements may be very different.
Building ventilation focuses on air volume, noise and installation and maintenance. The direction of the air duct, the space of the computer room and the maintenance access often determine the form of the box. This type of project has no special requirements for air cleanliness, and the selection focuses on air volume, external static pressure and noise control.
The air conditioning system also needs to consider coils, filter sections, fresh air ratio and seasonal changes. The fan box may serve as the air supply section of the air conditioning box, or may be independently connected to the air duct. The difference between the design working conditions and the common working conditions is large, and the value of the speed regulation scheme is more obvious during the partial load period.
In addition to general ventilation, clean projects must also clarify the filtration level, sealing requirements and terminal airflow organization. The blower box is responsible for providing the power, but the filtration task is usually undertaken by a separate filtration device. System end configurationWhen using HEPA/ULPA high-efficiency filters , the initial resistance of the filter and the resistance at the end of use should be included in the calculation of the working point. When the process requirements are higher, it can be evaluatedDoes the ULPA ultra-high efficiency filter meet the requirements?
The device heat dissipation scenario pays more attention to the internal resistance and interface space of the device. The fan box may need to be installed close to the equipment. The size of the box and the direction of the air outlet are limited by the structure of the equipment. Such projects often require non-standard customization rather than directly selecting from standard models.
What to look for in a cleaning project
Clean projects are the most confusing category of fan box applications. The semiconductor, electronics, pharmaceutical and food industries may all require air treatment, but the air supply paths and cleanliness goals of each process are different. Putting the industry name on the inquiry form does not allow the supplier to judge what fan box should be equipped.
If the fan box provides power to the air conditioning treatment section, the filtration level, room pressure difference and terminal air supply outlet still need to be designed separately. The fan box is only responsible for providing the pressure required to overcome the pipeline resistance and does not undertake the terminal filtration task. If local clean airflow is formed directly at the top of the equipment, it may be more suitable to use an integrated filter unit instead of a fan box plus a terminal filter.
Clean room ceiling air supply is comparableFFU fan filter unit . FFU combines a fan and a high-efficiency filter, has its own power and modular installation, and is suitable for ceiling air supply in large-area clean rooms. When multiple FFUs need to be managed in a unified manner, they can be matchedThe FFU computer group control system realizes centralized speed regulation and status monitoring.
If the core requirement is to protect the machine microenvironment of a single process equipment, rather than the entire clean room, thenAn equipment-side fan filter unit (EFU) may be more suitable than an FFU. EFU is specially designed for local purification at the equipment end. It is more compact and can be installed directly at the air inlet of the equipment. When final filtration and uniform air supply are required at the end of the air duct, you can also consider usingHigh-efficiency air supply outlet (HEPA BOX) is used as the terminal device. The division of labor boundaries between these equipment and the fan box should be clearly drawn on the system flow chart.
Special air media should be checked separately
When transporting corrosive, dusty, high-temperature or flammable and explosive air, the material of the fan box, motor protection level and sealing method must be checked separately. Ordinary carbon steel boxes may rust quickly in corrosive environments; ordinary motors may have poor heat dissipation in dusty environments; when transporting flammable and explosive gases, electrical equipment needs to meet corresponding explosion-proof requirements.
Under these conditions, the name 'fan box' cannot be used to directly determine that it is available. The air composition, temperature, humidity, dust concentration and whether it is corrosive should be explained to the supplier, and then the box material, impeller type, motor protection level and sealing scheme should be confirmed.
Don’t use industry names instead of working conditions
'I am in the semiconductor industry, what kind of fan box should I use?' This question cannot be answered directly. In a semiconductor factory, some locations require clean air supply, some locations require general exhaust, and some locations require equipment cooling. In the same semiconductor industry, different processes may have completely different requirements for air volume, static pressure, filtration and materials.
The correct approach is to draw the application location on the flow chart, indicating where the air comes from, what equipment it passes through, and where it is sent. In this way, it is not easy to choose the wrong product name, and the supplier can also give configuration suggestions based on actual working conditions.
Providing uses is more important than providing industry
Discuss with Aili IndustriesWhen selecting a fan box product , describe the location, air condition, air volume, resistance and running time of the equipment, which will help determine the box, fan and control configuration. For example: the fan box is installed in the air conditioning machine room to supply air to the clean area. The designed air volume is 8000m³/h, the external static pressure is 600Pa, and there is a high-efficiency filter at the end, which needs to be jointly adjusted with the building control system. Such a description is much more useful than 'I am in the pharmaceutical industry.'
Specific structure and configuration options can be found inthe fan box product catalog . Check For non-standard projects, equipment or computer room drawings should be provided, and then finalized based on the determined working points and on-site interfaces.
