Everyone who enters the plateau area for the first time is most concerned about altitude sickness, and the air compressor equipment is no exception. Compared with the sea level working area, the plateau area has low pressure, thin air, low temperature and low oxygen content。In such an environment, people experience a variety of discomfort, and air compressors (piston air compressors, screw air compressors) should also pay attention to whether "altitude sickness" will occur.。
The atmospheric pressure and ambient temperature decrease with the elevation of the plateau。The reduction of atmospheric pressure will affect the compression ratio of the air compressor, that is, the plateau area will affect the exhaust pressure and exhaust volume of the air compressor。
Choice of operating pressure and exhaust volume:
If the compression ratio of the sea level air compressor is 8, the working pressure is 0.7 MPA,
If you want to be in the plateau area of 3000 meters above sea level, you still need to reach the working pressure of 0.7 MPA, its compression ratio of 11, you must choose the exhaust pressure of 1.0 MPA, and the exhaust volume must be greater than or equal to the original 0.7 MPA air compressor。
Motor selection: Just said that at high altitude, low pressure, low temperature, low temperature conditions, will damage the motor,
Therefore, the high altitude motor must be selected。The platform motor is used in the altitude of more than 1 km of the motor, according to the national standard, the rated electromagnetic load and heat dissipation of the motor running at different altitudes have different design requirements。
Customer Case:
Company name: Listed company of a state-owned mining group in Qinghai
User industry: mining industry
Service location: Golmud (Plateau), Haixi Mongolian and Tibetan Autonomous Prefecture, Qinghai Province
Buy Model: BLT-350A/W)*4BLT-350A/W Brecht twin-screw air compressor
The listed company of a state-owned mining group in Qinghai Province is a large enterprise integrating mining smelting and chemical industry, which is rich in non-ferrous metals, gold, silver and ferrous metals。
At the end of 2020, your company carried out a technical transformation of Golmud air compressor equipment. Due to the local altitude of 3,300 meters, the use and operation stability of air compressors are highly required。Customize the local altitude for customers, customize the motor, fan, electronic components and other components, optimize the cooling system and air duct design, and equip the electric anti-condensation heater for the local low temperature environment。In view of the customer's use location, location on the plateau, long distance, poor road conditions and other reasons, the sheet metal of the air compressor is reinforced, and the transport support is pre-set。Through the customer's program of each manufacturer layer screening, the final Bolet compressor program stands out, the selection of Bolet 4 sets of 250 kW screw air compressors。