Gas throttling

Deere air separation has been deeply engaged in the air separation industry for many years. It has complete qualifications for the design, manufacture, installation and commissioning of complete sets of air separation equipment, and has a number of independent patent technologies. It has landed more than 400 large and medium-sized air separation projects, serving customers in metallurgy, chemical industry, energy and other industries, and has rich practical experience in the project. It has achieved the performance of extracting oxygen, nitrogen, argon, helium, neon, krypton and xenon all gas. At the same time, it has implemented the self-developed lan'an intelligent operation and maintenance system to fully verify the landing ability of large-scale fully extracted air separation and digital intelligence equipment. Relying on the accumulation of a large number of mature projects that have been put into operation, Deere air separation can fully learn from the experience of similar worki

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