Negative Pressure Weighing Room
The negative pressure weighing room is a purification equipment specially used in the pharmaceutical industry for weighing and packaging of pharmaceutical powders. The vertical one-way airflow continuously circulates in the main work area to effectively control the spillage and rise of pharmaceutical powders, prevent inhalation hazards to the human body, and avoid cross-over Pollution plays a role in protecting the environment and indoor personnel.
Working principle: A small amount of dust generated during operation in the negative pressure weighing room is first filtered by primary and medium efficiency filters, and then sent to the high-efficiency static pressure box through the fan. After being filtered by the high-efficiency filter, 80~90% The clean air is evenly sent into the working area of the weighing cover under the action of the flow equalizing film, and 10-20% of the clean air is directly discharged to the outside of the weighing cover, so that a negative pressure is always formed in the working area of the weighing cover. Airflow ensures that dust does not contaminate the room outwards.
Product features and configuration instructions:
•Modular design, flexible and simple installation, the connection between the inside and the ground adopts an integrated arc structure.
•Wind speed detection automatic frequency conversion system keeps the wind speed in the work area always in a uniform and stable operating state (0.45+20%m/s).
•Display the pressure difference between the front and rear of the filter (can be displayed directly using a differential pressure gauge or on a touch screen), monitors the effective operation of each filter in real time, and has a pressure difference over-limit alarm display.
•The unique air flow diversion design in the main work area ensures negative pressure air flow in the weighing cover work area, effectively protecting personnel safety and avoiding environmental pollution and product cross-contamination.
•Intelligent control mode and fault alarm system effectively ensure the reliability of operation.
•Humanized design makes it easier to replace various filters, and the unique air duct design effectively controls the operating noise of the entire machine.
• Equipped with multiple industrial sockets with protection level P66, which are used to draw power for electronic weighing instruments in the equipment.
•A full set of Siemens touch screens, PLC controllers and inverters can be configured according to user requirements. It can also be configured simply and directly supports external panel adjustment control using inverters.
•Optional cooling coil or air conditioner can be installed to balance the heat generated during operation.
•Weighing chambers with non-standard sizes are all customized according to user requirements.
