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 spread of a fire smoke flow process, the 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, 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 / h, the smoke does not enter the front room of smoke. Hot air curtain Features: The product consists of a low noise centrifugal fan, radiator shroud and other components, respectively, steam and hot water as heat medium closed doors to prevent cold air of indoor and outdoor unit convection. With a high pressure jet of heated air curtain stability, blocking the effect is significant characteristics such as product structure discrete and horizontal. Features: air volume, low noise, no tremor, stable operation, good effect closed the door, maintenance and ease of installation and so on. Can effectively reduce interior heat loss or air curtain air, the indoor temperature to meet environmental requirements, equipment clearly loaded, concealed in two series, installed in the ceiling space above or door, closed the door height of 2.2-4.0 meters, according to the width of the door from 1.0 m, 1.5 m of water vapor the air curtain, 1.8 m, 2.0 m, installation design portfolio, especially shopping malls, hotels, airports, hospitals, underground garages, factories and other large public places. Optimum installation height from the ground to the outlet does not exceed 4 meters. Wind curtain machine, air brakes, air doors, centrifugal air curtain, tubular air curtain, axial air curtain, air curtain low noise, electric air curtain, air curtain hydrothermal hydrothermal horizontal air curtain, steam air curtain machine, electric air curtain blowing unilateral, Shenyang air curtain, centrifugal side air curtain blowing hot water heating, electric heating air curtain sided, dual hot vapor curtain. Vertical air curtain | Watson conditioning (certified) | air curtain Watson provided by the Texas air-conditioning plant. Texas Watson air-conditioning plant (www.wchuaxin.com) (www.wchuaxin.com) Shandong Dezhou, heat, refrigeration and air conditioning equipment leader, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Watson air conditioning in leadership with the staff warmly welcome all inquiries negotiations to create Watson conditioned a better future.