Design of heat exchangers for small air separation unit
Design of heat exchangers for small air separation unit
Factors influencing the logistics distribution characteristics of plate fin heat exchangers and improvement measures which can improve the overall effectiveness of plate fin heat exchangers.
Products of Design of heat exchangers for small air separation unit
New material industry is a new field with vitality and development potential in chemical industry. New chemical materials refer to the advanced materials with excellent performance and function emerging or developing in the field of chemical industry. They are knowledge intensive and technology intensive materials with high technology content and high value. In the fine chemical industry, advantageous enterprises are actively building intelligent digital workshops, accelerating the application of intelligent logistics management technology and unit in the production process, and promoting digital control, real-time monitoring of status information and adaptive control. DEAR air separation can provide customers with intelligent air separation unit and overall operation services, help customers develop rapidly in the industry, and constantly improve the construction of intelligent detection and supervision system, so that customers can reach a new level of intelligent management of air s
The metallurgical industry has its unique industry characteristics and high requirements for oxygen purity. DEAR air separation has cooperated with domestic and foreign metallurgical industry customers in many projects, has rich project experience, and has continuously invested funds to develop energy-saving and intelligent air separation plant. KDON-10000/10000 is highly praised by customers for its high efficiency and stable operation.
The liquid air level in the lower column is one of the core parameters of air separation distillation, and its fluctuation directly affects the product purity and system stability. The causes of liquid level fluctuation can be summarized into four categories: gas source disturbance, valve failure, instrument distortion and abnormal working conditions in the tower.
1、 Inlet gas volume and pressure fluctuation. This is the most common cause. Unstable exhaust pressure of air compressor and sudden reduction of gas volume during switching of molecular sieve adsorber will lead to fluctuation of air volume entering the tower. The lower tower is very sensitive to the change of gas volume, and the liquid level will fluctuate immediately. In addition, the abnormal working condition of the booster or the adjustment of the expander gas volume will also indirectly disturb the liquid level of the lower tower through the cooling capacity balance.
2、 Valve regulating system failure. The liquid air thr