According to the effective pressure circulation type air curtain air curtain off the theoretical study and the characteristics of the mechanism of the air curtain, air curtain application example in Mine. The results come back off the air curtain has a Merry Merry and control of roadway within. Its better than a 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 mine production safety at the mine has broad application prospects. In the same section of the main ramp, on both sides of the roadway cave room. Typhoon aircraft with four parallel composition of the intake air curtain ramps increase airflow resistance plays a role in regulating the windscreen. When the air temperature is below -lO ℃. Main ramp full of air curtain. Atmospheric temperature is 0 ~ -lO ℃, the open side of the air curtain. When the air temperature is greater than O ℃. To effectively block the smoke, air curtain inclination angle must be greater than zero. In formula describes the air curtain can stop the smoke conditions. A building more than 50m (13 ~ 22F) staircases front room and shared room at the entrance to set up two gas-screen machines. Protection curtain air evacuation stairs near the front room and the fire smoke flow diffusion process a vertical air curtain, fire source maximum power of 1.15MW, fire growth factor O.O8 kw / s squared by CFD simulation model. Mechanical exhaust ventilation amount of 65OO m cubic meters / h, air curtain outlet velocity of 11m / s mine air curtain, the maximum flow rate of 235O m cubic meters / h. After the simulation results 12Os smoke entered the front room. The amount of smoke to 125O0m cubic / h, the smoke does not enter the front room of smoke. The product consists of a low noise centrifugal fan, radiator and shroud composed of top-blowing hot air curtain, respectively, steam and hot water as heat medium hot air curtain, door seal to prevent cold air of indoor and outdoor unit convection. With a high pressure jet stability, cut off the effect is significant characteristics such as product structure discrete and horizontal. Optimum installation height from the ground to the outlet does not exceed 5 meters. Over 5 m height can custom design. Vertical air curtain | air curtain | Watson Watson air conditioning provided by the Texas air-conditioning plant. Texas Watson air-conditioning plant (www.wchuaxin.com) (www.wchuaxin.com) strong, credible, Shandong Texas heat, refrigeration and air conditioning equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Watson air conditioning and you hand into the brilliant, for a better future! You can also access (www.wchuaxin.com/supply_details_46985755.html), for more information about the company.