Excluding indoor smoke and fire extinguishing agent in the return air duct with exhaust fan accident status
Ventilation system for office buildings. A mixed flow fan is selected, and a duct is provided in the locker room and the storage room to exhaust the roof, the fan is arranged on the roof, and the switch is arranged in the locker room. Maintain a balance of air volume. Smoke extraction system between the control room and the cabinet. There is a exhaust fan, which is exhausted through the air duct, and the exhaust port is selected as a panel exhaust outlet, which is respectively arranged in the control room and the cabinet. Exclude indoor smoke during a fire to allow personnel to escape safely. Security system. It is installed on the air-conditioning and return air ducts of the air-conditioned engine room. When the fire alarm system issues an alarm signal, an instruction can be issued from the fire control panel to close the fire damper.
When the air temperature at the fire damper reaches 70 °C, the fire damper will also automatically close. Once the fire damper is closed, a feedback signal will cause the air conditioner to interlock. The open/close status of the Changzhou vacuum pump fire damper can display an alarm on the fire control panel. Transformer room air conditioning system. An air-cooled roof-type air conditioner is used to cool the air conditioner in the switchgear cabinet to eliminate the heat generated by the power distribution cabinet and ensure the safe operation of the power distribution. An exhaust fan is arranged in the return air duct, and the accident state excludes indoor smoke and fire extinguishing agent.
ventilation system. Five mixed-flow fans are installed on the cable mezzanine wall, and the air outlets are provided with self-drilling louvers. The outdoor side of the natural air inlet is a fixed blind, and the indoor side is a grille air outlet with a washable filter. Each exhaust fan is equipped with a separate switch to facilitate the number of operating units per room temperature.
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