What is the distance between the smoke exhaust and the air outlet? What is the difference between th

Hello, if you refer to the outdoor, you can refer to the building design fire code:

The outdoor air inlet of the mechanical pressurized air supply and smoke prevention system and the smoke supply system should be arranged below the outdoor smoke exhaust outlet, and the height difference should not be small.

In; When arranged horizontally, the horizontal distance should not be less than 10m.

If it refers to the interior, you can look at the national civil building engineering design technical measures HVAC. Impetus.

, the horizontal distance between the two should not be less.

Summary. The distance between the smoke exhaust outlet and the smoke exhaust outlet: when the air supply outlet and the smoke exhaust outlet are arranged in the adjacent smoke-proof partition in the same space, the location of the air supply outlet is not limited, when the air supply outlet and the smoke exhaust outlet are set in the same fireproof partition, the air supply outlet should be set below the lower edge of the smoke storage warehouse, the horizontal distance between the air supply outlet and the smoke exhaust outlet should not be less than 5 meters, and the mechanical air supply outlet or natural air supply outlet is located below the smoke storage bin to form an ideal airflow organization.

If the position of the air supply outlet is improper, it will cause the agitation of convection when the flue gas, seriously affect the effective organization of the flue gas export, or because the air supply is blocked, the exhaust air flow can not be stably exported, so there must be strict requirements for the setting of the air supply outlet.

The distance between the smoke exhaust outlet and the smoke exhaust outlet: when the air inlet and the smoke exhaust outlet are arranged in the adjacent smoke-proof partition in the same space, the location of the air inlet is not limited, when the air inlet and the smoke exhaust outlet are set in the same fireproof partition, the air inlet should be set below the lower edge of the smoke storage warehouse, the horizontal distance between the air inlet and the smoke exhaust outlet should not be less than 5 meters, and the mechanical air supply outlet or the natural air inlet is located below the smoke storage bin to form an ideal airflow organization. If the position of the air inlet is improper, it will cause the agitation of the flue gas when the convection is improper, which will seriously affect the effective group of flue gas export, or because the air supply is blocked, the exhaust air flow can not be stably exported, so there must be strict requirements for the setting of the air inlet.

When the air outlet and the smoke exhaust outlet are arranged in the same fireproof partition, the air outlet should be set below the lower edge of the smoke storage silo, and the horizontal distance between the air supply outlet and the smoke exhaust outlet should not be less than 5 meters.

Under normal circumstances, the temperature difference between the air supply outlet and the smoke exhaust outlet should be within 10. The specific temperature difference is affected by the flue gas flow and temperature of the smoke exhaust outlet, the flue gas transmission coefficient of the smoke exhaust pipe, and the air supply temperature and air volume of the air conditioning system.

Under the condition that the air supply temperature and air volume of the air conditioning system remain unchanged, the larger the flue gas flow and temperature of the smoke exhaust outlet, the greater the temperature difference between the smoke exhaust outlet and the air supply outletOn the contrary, the smaller the flue gas flow and temperature of the smoke exhaust outlet, the smaller the temperature difference between the smoke exhaust outlet and the air supply outlet, and even reach 0.

In addition, the flue gas transfer coefficient of the exhaust pipe will also affect the temperature difference between the old smoke outlet and the air supply outlet. If the flue gas transmission coefficient is large, the temperature difference between the smoke exhaust outlet and the air supply outlet will be largerConversely, the smaller the flue gas transmission coefficient, the smaller the temperature difference between the smoke exhaust and the air supply outlet.

In short, the temperature difference between the smoke exhaust outlet and the air supply outlet is affected by many factors, generally within 10, but the specific temperature difference may vary.