Liquid oxygen products are pumped from the condensing evaporator, compressed to the required pressure by a liquid oxygen pump, then reheated and gasified by a heat exchanger and supplied to the customer, such a process is the oxygen internal compression process. The cost of the heat exchanger in the internal compression process increases because the heat exchanger oxygen channel is subjected to high pressure, but the cost of the liquid oxygen pump is much cheaper than the cost of the oxygen compressor. Combined with the cost factors, the internal compression process is not more expensive than the external compression process. The important thing is that the liquid oxygen is constantly discharged from the main cold, small air separation unit security is better than pumping gas oxygen from the bottom of the upper tower, in addition, the compression of liquid oxygen is also safer than gas oxygen compression, so the current international more use of internal compression process.
The DEAR AI Intelligent CNC Research Institute was established under the leadership of Dr. Li Guanxiong, a returnee, as a highly sophisticated research team. The intelligent numerical control system created by the research: in the production side, by creating a set of intelligent production workshop in the air separation industry, to achieve the ultimate precision and zero error production in the manufacturing process; in the operation side, by developing a set of intelligent numerical control operation and maintenance software, to achieve the intelligent management of small air separation units on-site and remote control terminals throughout the whole process. The project was awarded the "Excellent Project Award" in a domestic competition and received strong government awards and support.
