The air cooler is mainly composed of tube bundles, fans, tube boxes, structures and shutters. In addition, there are two inlets and outlets at the position of the tube bundles. There is a platform and a ladder connected to the tube header. In addition, air coolers are also divided into horizontal air coolers, vertical air coolers and inclined air coolers and other centralized basic types, and air coolers can be classified according to cooling mode, tube bundle layout, and ventilation mode.
The air cooler is mainly composed of tube bundles, fans, tube boxes, structures and shutters. In addition, there are two inlets and outlets at the position of the tube bundles. There is a platform and a ladder connected to the tube header. In addition, air coolers are also divided into horizontal air coolers, vertical air coolers and inclined air coolers and other centralized basic types, and air coolers can be classified according to cooling mode, tube bundle layout, and ventilation mode.
The tube box in the air cooler is also divided into Pipe header, Semi-circular header, Cover plate header and Plug headers.
1. Pipe header
This type of tube box has the characteristics of low resistance and good sealing effect, which can effectively prevent the leakage of harmful liquids and gases. The maximum allowable working pressure is 35MPa, which is suitable for high temperature, high pressure, toxic, flammable and explosive cleaning media.
2. Semi-circularheader
This header adopts a fully welded structure, no wire plugs, cover plates and other detachable parts, and the sealing performance is high. This design is mainly used in the condensation of vacuum exhaust steam.
3. Cover plate header-for very dirty flows
Cover plate header is mainly used in mixed medium, the pressure is less than 6.4Mpa, and it is suitable for frequent cleaning conditions.
4. Plug headers-generally the most used
The plug header is a widely used air cooled heat exchanger structure, and the allowable working pressure is less than 20Mpa.
It adopts the process of deep hole welding and expansion, and plugging holes is convenient for welding, maintenance and cleaning of tube sheet and base tube. Generally used in occasions where the media side is dirty and needs frequent cleaning.