Watson-conditioned FIG _ _ air curtain air curtain of water vapor

According to effective pressure circulating type air curtain air curtain theoretical study and the characteristics of the air curtain blocking mechanism, for example Air Curtain in Mine. The results obtained with a romantic air curtain back off the roadway and control of air flow inside. Its better than manual or automatic throttle. To solve the problem of leakage of underground transport busy roadway opened up new avenues. Thus ensuring the normal flow of underground romantic, help protect the health of workers and the safety of underground production, the mine has broad application prospects. The same section of the main ramp and roadway sides cave room. 4 turbines connected in parallel with the air curtain ramp to increase air flow into the barrier has played a role in regulating the windscreen. When the air temperature is below -lO ℃. Main ramp of the air curtain full. Air temperature is 0 ~ -lO ℃, the open side of the air curtain. When the air temperature is greater than O ℃. To effectively block the smoke, the air curtain inclination angle must be greater than zero. In formula describes the air curtain can stop flue gas conditions. A building more than 50m (13 ~ 22F) staircases in the front room and shared room at the entrance to set up two air curtain. Evacuation of air curtain protection front room and the stairs near the diffusion of smoke a flow process, the fire source maximum power of 1.15MW, fire growth factor O.O8 kw / s square by CFD simulation model. Mechanical exhaust ventilation amount of 65OO m cubic meters / h, the air curtain outlet velocity of 11m / s, the maximum flow of 235O m cubic meters / h. After the simulation results 12Os smoke entered the front room. The amount of smoke to 125O0m cubic meters / h, the smoke does not enter the smoke before the room. The product consists of a low noise centrifugal fan, heat sink and shroud and other components, respectively, steam and hot water as heat medium, to prevent the closing of the door means of indoor and outdoor hot and cold air convection. With a high pressure jet stability, blocking effect of significant features, product mix discrete and horizontal. Optimum installation height outlet not more than five meters from the ground. Over 5 m height can custom design. 1, the air curtain insulation: making such customers as restaurants, shops and entertainment places frequented not need to constantly switch door. 2, the air curtain pest control: You can find most annoying insects are harmful not pass wind curtain. 3, the air curtain dust: if precision machine shop or grocery store or face bus Road clothing store foyer installed air curtain can effectively shield outside dust. 4, air curtain preservation: it can prevent odor emitted from such chemical laboratory or store room and frozen meat preservation machine.