A kind of inductive ventilation and smoke exhaust system without ventilation duct and ventilation and smoke exhaust method

Abstract

The invention discloses a non-ventilation-pipeline inducing type ventilation and smoke exhaust system and a ventilation and smoke exhaust method thereof. The system comprises an independent smoke exhaust system body and a non-underground-ventilation-pipeline inducing type ventilation system body. The independent smoke exhaust system body comprises a smoke exhaust fan, smoke exhaust ports, a smoke exhaust pipeline and a smoke exhaust fire damper. The smoke exhaust ports are formed in a ceiling or a wall face close to the ceiling. The smoke exhaust fire damper is installed at an inlet of the smoke exhaust pipeline. The non-underground-ventilation-pipeline inducing type ventilation system body comprises an inducing fan set, an air feeder, an exhaust blower, an exhaust pipeline, an exhaust port and an electric air valve. The inducing fan set is arranged on the lower portion of a floor slab. The electric air valve is installed on the exhaust pipeline. The ventilation and smoke exhaust method comprises the steps that during ventilation, the smoke exhaust fire damper is closed, the electric air valve is opened, and the exhaust port is opened for ventilation; and during a fire, the electric air valve is closed, the smoke exhaust fire damper is opened, and the smoke exhaust ports are opened for smoke exhaustion. The ventilation effect and the smoke exhaust effect are good, the noise pollution is reduced, the energy consumption is low, and the investment cost is low.

Description

technical field [0001] The invention relates to the technical field of building heating and ventilation, in particular to an inductive ventilation and smoke exhaust system without a ventilation duct and a ventilation and smoke exhaust method thereof. Background technique [0002] With the development of the city, the number of cars has increased rapidly, and the problem of nowhere to park vehicles has become increasingly prominent. Under the condition of making full use of the effective resources on the ground, the underground garage came into being. Due to its special location, the underground parking garage is required to be designed not only to meet the usual ventilation requirements, to discharge vehicle exhaust and gasoline vapor, to send in fresh air, but also to meet the requirements for smoke exhaust in case of fire. [0003] The code for fire prevention in the design of garages, repair garages, and parking lots: the area exceeds 2000m 2 The underground garage shoul...

AI Technical Summary

Problems solved by technology

This greatly increases the construction cost; in addition, due to the large number of electric control valves, which are not frequently activated, there is a possibility of failure and corrosion. When a fire occurs and needs to be closed, there will be a great danger.

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