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Laboratory exhaust ducts

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Laboratory exhaust ducts are an important part of the laboratory ventilation system and are designed to remove and exhaust contaminated air from the laboratory space. Laboratories frequently handle a variety of chemicals, fumes, and hazardous materials that need to be removed safely and efficiently in order to maintain a safe working environment for researchers and occupants.

ventilation systems in clean rooms and laboratories

The main features and considerations for laboratory exhaust pipes include:

Material:

Pipes are often made from corrosion-resistant materials such as stainless steel or PP to withstand the corrosive nature of certain chemicals.

Design and dimensions:

Proper design and sizing is critical to ensuring that duct systems can effectively capture and remove contaminants. The system should provide adequate airflow to maintain a safe environment.

Laboratory fume hood design:

Laboratory fume hoods or fume hoods connect to exhaust ducts to capture and contain contaminants at the source. Laboratory fume hood design is critical for effective ventilation.

Exhaust gas scrubbing:

Depending on the nature of the contaminants, an exhaust scrubber system may be installed in the exhaust duct to capture and remove particulate matter or chemical vapors before the air is released outdoors. Wet scrubbers are a common method in which waste gases are passed through a tower containing an absorption liquid (usually water or a chemical solution). Harmful substances are absorbed or react with the liquid. This effectively removes particles and chemicals from the gas.

wet scrubber

Blower system:

Blowers are used to create negative pressure within the ductwork, ensuring that contaminants are always removed from the laboratory space.

Variable Air Volume (VAV) Systems:

Some modern laboratory ventilation systems use variable air volume technology to adjust airflow based on actual usage and ventilation needs, optimizing energy efficiency.

Comply with regulations:

Laboratory exhaust systems must comply with local and international safety and environmental regulations to ensure the health and safety of laboratory personnel and the surrounding community.

Emergency shutdown system:

To increase safety, laboratory exhaust systems may include emergency shutdown mechanisms that can quickly isolate the ventilation system in the event of a hazardous event.

Monitoring and Control:

Systems can include monitoring and control systems to track and regulate air quality, temperature and other parameters within laboratories and ductwork.

Regular maintenance:

Regular inspection and maintenance are essential to ensure the continued effectiveness of your laboratory exhaust system and to promptly resolve any potential problems.

Properly designed and maintained laboratory exhaust systems play a vital role in creating a safe and healthy working environment within the laboratory, protecting researchers and the surrounding community from potentially harmful substances.

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