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What is the negative pressure weighing hood mainly used for?
What is the negative pressure weighing hood mainly used for?In the pharmaceutical industry, the weighing device is a special purification equipment used for weighing and dispensing small batches of drugs, mainly including negative pressure weighing devices and activated carbon weighing devices. The negative pressure weighing device is mainly used for pharmaceuticals, microbiological research scientific experiments, and other places dedicated to local purification equipment, while the activated carbon weighing device is mainly used for water needle workshop activated carbon weighing dedicated local purification equipment.Weighing can provide a vertical unidirectional airflow, part of the clean air circulation in the working area, and part of the discharge to the nearby areas, so that the working area to generate negative pressure to prevent cross-contamination. Weighing eggs generally use a negative pressure design, which can effectively control dust spillage, and uplift, to prevent dust inhalation hazards to the human body, to protect the environment and the safety of personnel in the work area. -The ventilation and filtration system of general biopharmaceutical enterprises can satisfy the requirements of air supply outlets, laminar flow devices, transfer windows, weighing devices, and return air outlets. Our negative music weighing set adopts vertical single white flow airflow form, the same air first through the primary filter for pre-filtering the airflow in the large powder 4 particles to deal with the airflow, after pre-treatment of the air, and then through the intermediate filter for secondary filtration, to play full protection of high-efficiency filters. Under the pressure of centrifugal fan, through the high-efficiency filter, so that it meets the clean requirements, clean airflow is sent to the air supply box, 90% of which passes through the even-flow air supply mesh plate to form a uniform vertical airflow, and 10% is discharged out of the equipment through the airflow regulating plate. All the airflow is processed by a high-efficiency filter, so the air supply and exhaust are free of residual dust, avoiding secondary pollution. A stable unidirectional flow is formed in the working area by the workers, and the dust emitted in this area will be captured by the primary and secondary filters under the influence of the unidirectional airflow and with the airflow. Equipment with 10% of the exhaust air, thus forming a negative pressure relative to the external environment, to a certain extent, to ensure that the dust in the area will not spread to the outdoors, plays a role in protecting the external environment. Weighing rooms are a kind of local purification equipment for pharmaceutical, microbiological, and scientific experiments, etc. It is a kind of vertical unidirectional airflow. Part of the clean air circulates in the working area, and part of it is discharged to the neighboring area so that the working area generates negative pressure and prevents cross-contamination, which is used to ensure a highly clean environment in the working area. The equipment for dust, reagent weighing, and packaging can control dust, reagent spillage, and uplift, to prevent dust, and reagent inhalation hazards to the human body, but also to avoid dust, reagent cross-pollution, to protect the external environment and the safety of indoor personnel. |
