German
French
Italian
Portuguese
Japanese
Korrean
Russian
The main use of laminar flow hood and how to distinguish between laminar flow hood and FFU?
The main use of laminar flow hood and how to distinguish between laminar flow hood and FFU?A Laminar flow hood is a kind of air purification unit that can provide a local clean environment, and it can be flexibly installed above the process which needs high cleanliness so that the local environmental cleanliness can be improved.I. The main role of laminar flow hood A laminar flow hood is a device to provides a clean environment, The main role is to avoid product contamination, can be used individually and can also be combined to form a clean area with a certain air velocity through the high-efficiency filter filtration, and then through the flow membrane, the formation of vertical unidirectional, flow of clean air, to make the installation of the laminar flow hood of the work area to achieve the cleanliness of the process requirements. A Laminar flow hood can also be customized to become a movable clean laminar flow vehicle or clean isolation device according to the process needs. II. How to distinguish between a laminar flow hood and an FFU? The Laminar flow hood and the role of the FFU are very similar, FFU is a clean room end of the air supply device, but also the air will be sucked in and filtered by the filter, and then the clean air is sent out at a uniform wind speed. But there are still differences between the two, companies should pay attention to distinguishing between laminar flow hood and FFU when purchasing clean equipment. Different application areas FFU as a clean room air supply device, as a part of the clean room or clean room to plays a role, whether it is a single or modular connection to use, It is suspended from the top of the clean room, through the number of how much and layout to meet the requirements of the clean room of different cleanliness levels. Laminar flow hood is a kind of local purification equipment, The environmental requirements are not high, can be independent of the clean room to operate alone, can be made to do the hanging type can also be made to do the ground support type, can also be upgraded to do the movable laminar flow clean car. The main use of a laminar flow hood and how to distinguish between a laminar flow hood and FFU? Structural differences Laminar flow hood is more complicated than FFU structure, take DXN Ziyuan laminar flow hood as an example, the main material of the laminar flow hood is made of stainless steel plate bent and welded to shape, which is smooth and clean and easy to clean; the filter is a slotted high-efficiency filter, which is more sealed in line with the requirements of the new cGMP; the configuration of the PAO dust port and DOP detection port ensures the integrity of the filter; it is also configured with the U.S. Dwyer differential pressure table to remind the replacement of high-efficiency filters; the configuration of the new uniform flow membrane technology is a new technology. Filter; Configuration of the new average flow membrane technology, wind speed uniformity ± 10% or less; Individual configuration of the LCD touch screen, wind speed, sterilization, lighting man-machine interface at a glance. In addition, the fan of the laminar flow hood can be installed internally or externally. The structure of FFU is relatively simple, the main body shell is mostly made of zinc-aluminum alloy, a built-in fan, primary and high-efficiency filter. More than one FFU used in parallel, the test will generally be configured with a group control system, the airflow is not as uniform as the laminar flow hood. |
