Industrial ventilation is one of the important sanitary and technical measures to control workshop dust, harmful gas or steam and to improve workshop microclimate.Its main function is to discharge the polluted or humid, overheated or undercooled air from the operation area and send it into the clean air outside to improve the air environment of the operation site.
Industrial ventilation is divided into natural ventilation and mechanical ventilation according to its power source.Natural ventilation relies on the thermal pressure formed by the temperature difference between indoor and outdoor air and the wind pressure formed by outdoor wind to make the air flow.Mechanical ventilation relies on the difference in internal and external pressure of the ventilation system formed by the ventilator to make the air flow in a certain direction.
From the perspective of ventilation function, industrial ventilation can be divided into local areas for local ventilation operation.To improve the environment of the whole workshop in places where workers' operation positions are not fixed.
From the ventilation mode, industrial ventilation can be divided into exhaust and air supply two categories.Exhaust means to vent harmful substances or wet or hot air out of the workshop by means of ventilation, away from the operator;The air supply is the clean air outside the workshop into the workshop, directly acting on the operators or improve the whole workshop air environment.
In order to control the dust, harmful gas or steam in the workshop, local exhaust is mainly adopted.In order to improve the micro-climate within the vehicle cycle, local or comprehensive air supply or local exhaust can be adopted. The specific selection should be based on the size and distribution of heat source, production characteristics, outdoor meteorological conditions and other factors.