For partial clean renovation of ordinary factory buildings, what conditions must be supplemented in addition to FFU?
FFU is not the be all and end all of partial clean renovation
When performing partial clean renovation of ordinary factory buildings, the first thing that comes to mind in many projects is the installation of FFU. FFU can provide filtered air supply and is an important equipment for local clean transformation. However, if only FFU is installed without cooperating with other conditions, the expected cleaning effect may not be achieved.
In addition to FFU, local clean transformation also involves the envelope structure, return air path, personnel and material management, temperature and humidity conditions, and operation management. These conditions work together to form a stable local clean area. If some of these conditions are missing, the FFU air supply may be contaminated by the external environment, or effective airflow organization may not be formed.
Therefore, when performing partial clean renovation of ordinary factories, FFU needs to be considered in the entire system. Aili Industry has complete production capabilities in FFU complete machines and clean engineering supporting equipment, and can provide air supply solutions according to transformation conditions. For the basic structure of the FFU machine, you can refer toAili Industrial FFU fan filter unit。
How to repair the building envelope
The building envelope is the boundary between the local clean area and the general factory building. If there is no enclosure structure, clean airflow can easily spread to the surroundings, and external polluted air can easily enter. The enclosure structure can be a hard partition, soft curtain, clean shed or local clean cover.
The form of the envelope depends on the retrofit requirements and site conditions. If only local protection is required, soft curtains or local clean covers can be used. If a more complete operating space is needed, a clean shed can be built. The enclosure structure should minimize openings, and if necessary, set up air curtains or soft curtains at the openings.
The envelope should also consider personnel access and material flow. If people need to come in and out frequently, buffer areas can be set up or clothing can be changed. If materials need to be put in and out, transfer ports or cleaning steps can be set up.
How to organize the return air path
The return air path of the local clean area needs to be organized. If there is only FFU air supply and no return air path, clean air may not be effectively circulated and polluted air may remain in the area. The return air path can be set at the bottom or side of the building envelope or return to the mezzanine through the return air outlet.
The return air path should avoid being blocked by equipment, materials or people. The return air outlet should be positioned so that clean air flows from the supply side to the return side to take away polluted air. If there is heat generated by equipment in the local clean area, the return air path should also consider the discharge of hot air.
For factories without mezzanine or return air conditions, you can consider using self-circulating FFU or local clean devices with airflow structures. If the transformation conditions are limited, you can refer toClean workbench Learn about local clean equipment with its own air-conditioning structure.
How to manage personnel and materials
People and materials are important sources of pollution in local clean areas. If there are no management measures, even if the FFU air supply is normal, the cleanliness may not meet the standard.
Personnel management includes: stipulating entry and exit routes and changing requirements; limiting the number of personnel and scope of activities; training on operating standards to reduce fast movements and unnecessary movements. Material management includes: cleaning or changing packaging before materials enter; keeping the material storage area clean; and avoiding cross-contamination in the direction of material flow.
For local clean renovation projects, personnel and material management are part of daily operations. FFU provides clean air supply, but management measures are required to maintain the cleanliness effect.
How to consider temperature and humidity conditions
FFU is not responsible for temperature and humidity control tasks. If the local clean area has temperature and humidity requirements, additional air conditioning or dehumidification equipment needs to be installed. The temperature and humidity of ordinary factories may fluctuate greatly. If the local clean area is sensitive to temperature and humidity, you should confirm whether independent control is needed.
Temperature and humidity conditions can also affect FFU operation. High-humidity environments may increase the risk of condensation, and high-temperature environments may affect electrical components. For projects with special temperature and humidity requirements, the conditions should be confirmed before modification.
How to cooperate with operation management
After the partial clean transformation is completed, the cooperation of operation management is required. This includes regularly replacing filters, checking seals, measuring wind speed, monitoring cleanliness, and recording operating status. If FFU is connected to the group control system, you can refer toFFU/EFU group control touch screen controller andFFU computer group control system understands the control scheme.
Operations management also includes cleaning and maintenance. The cleaning method and frequency of local clean areas should match the cleaning requirements. The FFU box and air outlet surface should be cleaned according to prescribed methods.
Issues that should be confirmed in advance during project communication
During the partial clean transformation stage of ordinary factory buildings, it is recommended to confirm the following with the FFU manufacturer and designer: transformation scope and target cleanliness level; envelope structure form and opening management; return air path and return air outlet location; personnel and material entry and exit management; temperature and humidity requirements; FFU quantity and layout; operation management and maintenance methods; and verification methods after transformation.
If you are planning a partial clean renovation of an ordinary factory building, you can visitAili Industrial FFU fan filter unit to learn about the complete machine configuration, you can also refer toClean workbench to learn about local clean devices, or contact Aili Industrial to obtain support for transformation solutions.
in conclusion
For partial clean renovation of ordinary factory buildings, in addition to FFU, it is also necessary to repair the envelope structure, return air path, personnel and material management, temperature and humidity conditions, and operation management. Only installing FFU cannot directly infer that a designated clean level area is formed. These conditions need to be designed and verified uniformly with the FFU.
Aili Industry has complete production capabilities in FFU complete machines and clean engineering supporting equipment, and can provide air supply solutions according to transformation conditions. If you need to know more about local clean transformation, you can visitAili Industrial FFU fan filter unit , you are also welcome to contact Aili Industrial for project support.
