Application field of air separation equipment

Generally, the actual cooling capacity of expander is always less than the theoretical cooling capacity. Under the same inlet and outlet pressure and inlet gas temperature, the lower the efficiency of expander, the smaller the unit refrigerant cooling capacity and the smaller the temperature drop efficiency of expander. The efficiency of expander depends on the size of various losses inside the expander. Due to the existence of various losses, the ability of gas to do external work is reduced in varying degrees. To sum up, the losses mainly include the following aspects: 1. When the air flow passes through the work wheel and the deflector, the loss caused by friction and air flow impact on the runner surface is called flow loss. 2. When the impeller is rotating, the friction heat generated by the gas around the wheel disc will increase the temperature of the gas, which is called friction blast loss. 3. When the gas passes through the deflector, the leakage from the gap bet

After 1990s, the specifications of imported air separation unit increased to 20000m³/h and above, mostly from Linde and French Air Liquide, and also American Air Products. Foreign companies began to build manufacturing bases in China precisely because they were optimistic about the rapid development of China's national economy and the high market demand. After 1994, Linde and Air Liquide established large air separation plant manufacturing bases in Dalian and Hangzhou, Liaoning Province, re...