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Are FFU and laminar hoods the same after all?

日期:2022-09-23 22:27
浏览次数:249
摘要:FFU with primary, high efficiency two - stage filter. The fan inhales the air from the top of the FFU and filters it through the primary and high efficiency filter. The filtered clean air is sent out at a uniform speed of 0.45m /S±20% on the whole air outlet surface. Suitable for obtaining superior 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, clean workshop re.
FFU with primary, high efficiency two - stage filter. The fan inhales the air from the top of the FFU and filters it through the primary and high efficiency filter. The filtered clean air is sent out at a uniform speed of 0.45m /S±20% on the whole air outlet surface. Suitable for obtaining superior 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, clean workshop renovation and renovation, can improve the cleanliness level, reduce noise and vibration, but also greatly reduce the cost, easy installation and maintenance, is the ideal part of clean environment. Large area use to provide a clean environment, more than 100 or superior, general requirements for the floor form of elevated floor, a return air channel, and the level around also to ensure the low quality of cleanliness. The cost is higher and the air must be returned to the ceiling.



Principle of FFU Laminar Flow Air Supply Unit





Laminar flow hood is a kind of air purification equipment which can provide a high local clean environment. It is mainly composed of a box, a fan, an initial air filter, a damping layer, a lamp and so on. The shell is sprayed with plastic. The product can be suspended, and ground support, compact structure, easy to use. Can be used individually, can also be connected to form a belt clean area. The laminar flow mask is the uniform flow layer formed after the air passes through the HEPA filter at a certain wind speed, so that the clean air is vertical one-way flow, so as to ensure the cleanliness of the working area to meet the requirements of the process. Clean laminar flow hood has a built-in fan and fan external two, installation is hanging and scaffolding is two kinds of laminar flow hood will air landing is approved by the wind of the fan at a certain high efficiency air filter, pressure by the damping layer, clean air is a vertical laminar air flow into the workspace, thus ensuring the workspace to process the required high cleanliness. Laminar flow hood compared with clean room, with investment, quick effect, low requirement to the plant construction, installation is convenient, save electricity, etc, is widely used in precision machinery., electronics, pharmaceutical, food, fine chemical industry and other departments structure is more complicated than the head, as the partial purification equipment, using the environment requirement is lower, used to provide a partial high cleanliness, suitable for reconstruction project, and the overall requirements is not high, just meet the requirements of the local engineering. It can be used alone or in parallel with indoor air return.



Features of FFU laminar air supply unit





The big difference between the FFU and the laminar hood is that the laminar hood returns air from the interior, while the FFU must return air from the ceiling.