Air Separation Unit

The raw air filter fully considers the local climate characteristics and can replace the filter element without stopping. The filter is designed for horizontal air intake, filtration efficiency: 99.99% (dust diameter > 1 μm), pressure drop range: 150 ~ 650Pa, and the processing air volume is designed to be 2.0 times the air volume (backflush air pressure 0.45MPa). A protective net is installed around the filter to block dead grass, leaves and other debris, and prevent large particles from damaging the filter element. The filter is equipped with an automatic control system that can automatically backflush at scheduled times and adjust the program according to the filter resistance.

1) The main engine of the pre-cooling unit, the refrigeration compressor, uses a semi-hermetic screw refrigeration compressor, which operates silently, saves energy, has a long life, and has high refrigeration efficiency, fully ensuring the safe operation of the refrigeration compressor;
2)The pre-cooling unit adopts advanced precision pressure and temperature instruments, which can display parameters such as compressed air pressure, refrigerant high and low pressure temperatures, etc. to monitor the operating status of the pre-cooling unit. 
3) The instrument panel and the entire refrigeration system of the pre-cooling unit are of skid-mounted design, with compact structure, easy installation and beautiful appearance.

The design of the fractionating tower is advanced, the process flow is mature and stable, and the design complies with the pressure vessel design specifications. 
It mainly has the following characteristics:
1) Use advanced calculation software, combined with the user's climate conditions and public engineering conditions, to calculate the process flow of air separation equipment and the calculation of the distillation tower;
2) The upper tower and lower tower adopt packed towers
3) The main heat exchanger adopts a long-plate, large-section vacuum-brazed aluminum plate-fin heat exchanger, which reduces the temperature difference at the hot end, controls the loss of cooling capacity, reduces energy consumption and so on.
 

The molecular sieve purifier is filled with a sufficient amount of adsorbent with good strength, particle size, adsorption performance and service life, and the automatic switching cycle is 8 hours. It mainly has the following characteristics:
1) Equipped with an air flow uniform  distribution device, which has a long life, saves investment and reduces energy consumption;
2) A built-in powder filter is used at the outlet to effectively prevent dust from entering the cold box and ensure the long-term stable operation of the air separation equipment.

It is the most widely used industrial cooling design. It consists of pumps, heat exchangers, and cooling towers. The pumps keep the water recirculating through heat exchangers where it picks up heat and moves it to the cooling tower where heat is released from the water through evaporation.

1) The cooling water tower adopts an open cooling water tower, which is reliable in operation;
2) The fan adopts two-stage speed regulation to meet the operation of different climate conditions.

1) The liquid nitrogen backup system adopts the form of a vacuum storage tank, the vaporizer adopts an air bath type, and the vaporizer adopts a 1-use and 1-standby mode, which can be switched between each other.
2) The backup nitrogen and cold box nitrogen are seamlessly connected in terms of control, ensuring the normal supply of nitrogen in the event of device nitrogen failure.