The ventilation system of the Wanshulin Laboratory All-Steel Gas Cylinder Cabinet is the core design element ensuring safe gas emission. Through multiple technological means and structural optimizations, it constructs a comprehensive protection system from gas leak monitoring to directional emission. The core objective of this system is to rapidly expel harmful gases from the laboratory in the event of a gas cylinder leak, while preventing gas accumulation inside the cabinet or backflow into the indoor environment, thereby reducing the risks of explosions and poisoning.
The safety design of the ventilation system is primarily reflected in the cabinet structure and airflow guidance. The Wanshulin Laboratory All-Steel Gas Cylinder Cabinet uses a double-layer steel frame filled with fire-resistant and heat-insulating material to form a physical barrier. Adjustable baffles are installed inside the cabinet to guide airflow according to gas density differences: lighter gases (such as hydrogen and ammonia) are discharged through the upper opening of the baffles, while heavier gases (such as chlorine and hydrogen sulfide) are discharged through the lower opening, preventing gas from forming eddies or stagnating inside the cabinet. The cabinet door is made of explosion-proof glass or metal and equipped with a three-point lock to ensure airtightness and prevent leaked gas from escaping.
An independent mechanical exhaust system is the core component of the ventilation system. Wanshulin gas cylinder cabinets are equipped with explosion-proof exhaust fans that do not generate electrical sparks during operation, preventing secondary explosions. Exhaust vents are located on the top or side of the cabinet and connect to the laboratory exhaust system via PP or stainless steel ductwork, directly expelling leaked gas outdoors. Check valves are installed in the exhaust ducts to prevent backflow of external air or flame backflow, and fire dampers are also installed to automatically close in case of high temperatures or fire, blocking the spread of fire.
A gas leak alarm system works in conjunction with the ventilation system for protection. The gas cylinder cabinet is equipped with combustible gas sensors or toxic gas sensors depending on the type of gas stored. When the gas concentration reaches a set threshold, the alarm system immediately triggers an audible and visual signal and simultaneously starts the exhaust fan to accelerate ventilation. Some high-end models can also be linked with the laboratory's central control system to automatically close gas cylinder valves, cut off power, and push alarm information to management personnel terminals, achieving intelligent emergency response.
The safety of the ventilation system is also reflected in the explosion-proof design of the electrical wiring. All electrical components (such as exhaust fans, sensors, and alarms) in Wanshulin's all-steel gas cylinder cabinets are made of explosion-proof materials, and the wiring uses explosion-proof conduit to prevent sparks caused by electrical faults. A leak-proof tray is installed at the bottom of the cabinet to collect any leaked liquids. The tray's volume is calculated and designed to prevent liquid spills from contaminating the laboratory floor or corroding equipment.
In daily use, the maintenance and management of the ventilation system are equally crucial. Wanshulin recommends regularly checking the exhaust fan's operating status, sensor sensitivity, and duct sealing, and cleaning the baffles and dust inside the cabinet to ensure unobstructed airflow. For example, dust accumulation or wear on the exhaust fan blades can reduce exhaust efficiency; long-term uncalibrated sensors may cause false alarms or missed alarms. Furthermore, the linkage function between the gas leak alarm system and the exhaust device should be tested regularly to verify the reliability of the emergency response.
From an application perspective, Wanshulin's laboratory all-steel gas cylinder cabinet ventilation system can adapt to the gas storage needs of different hazard levels. For flammable and explosive gases, the system minimizes the risk of explosion through explosion-proof design, independent exhaust, and emergency shut-off functions. For toxic gases, high-sensitivity sensors and efficient exhaust devices quickly dilute and remove toxic gases, protecting personnel health. For corrosive gases, corrosion-resistant treatment of the cabinet material and exhaust ducts extends the equipment's lifespan and reduces the risk of leaks due to corrosion.
The ventilation system of the Wanshulin Laboratory All-Steel Gas Cylinder Cabinet constructs a complete gas safety emission protection system through multi-dimensional design including structural isolation, airflow guidance, independent exhaust, intelligent alarms, explosion-proof electrical components, and convenient daily maintenance. This system not only meets laboratory safety regulations but also enhances emergency response capabilities through technological innovation, providing reliable protection for hazardous gas management in laboratories.
