1, the air curtain insulation: making customers such 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 of dust: If precision machine shop or grocery store, or the face of the bus channel clothing foyer installed air curtain air curtain price, selection, principles, function, can effectively shield outside of dust . 4, the air curtain preservation: can prevent odor emitted from such chemical laboratory or shop to save room and frozen meat machine. Air curtain principle of selection: a hot air curtain air curtain design parameters of the supply air temperature. Generally determined by calculation. For the production of a wide public buildings and houses outside the door, the air curtain air temperature is less than 50 ℃; for the tall outer door, air temperature is less than 70 ℃. Outlet air curtain wind. Generally determined by calculation. For residential and commercial buildings, and its outlet velocity can be 4 ~ 9m / s; for industrial buildings, outlet velocity can be 8 ~ 24m / s industrial air curtain, not more than 2Sm / s. 2. Non-heated air curtain (isothermal air curtain) Scope ① civil air-conditioning system and door entrance foyer in the trunk. ② require higher operating counter commercial buildings. ③ some sporadic Park fog, different ignorant, odor room door. ④ distribute gas and dust in the opening process equipment. 3. Scope ① hot air curtain heating outdoor design temperature is equal to or lower than -20 ℃ mine mouth area top blowing air curtain manufacturer, when the shop door opened frequently the main channel, bucket or front room door is not set, and the class When more than 40min. ② regardless of the level of heating outdoor design temperature and the length of time the door opened, when production requirements are not allowed to reduce the indoor temperature, but can not be set before the door bucket or room. ③ heating outdoor design temperature is higher than the 200e area, when reasonable technical and economic indicators. ④ large number of scattered wet room or near the outer door, there is a fixed job for civil and industrial construction entrance foyer and doors in the trunk. Air curtain price selection, principles, roles, Watson air conditioning (certified), provided by the Texas air curtain air-conditioning plant Watson. 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.