1.安全性好采用液氧内压缩流程，主冷凝器采用浴式结构，全浸式操作，增加

1. Good safety <br>uses liquid oxygen internal compression process, the main condenser adopts a bath structure, full immersion operation, increase the circulation rate of the main cold liquid oxygen, prevent the precipitation of hydrocarbons on the main cold heat exchange surface caused by the main Cold explosion; the internal compressed liquid oxygen pump replaces the external compressed oxygen compressor to greatly reduce the risk of fire; the two liquid oxygen pumps fully realize online automatic startup and switching operation procedures, which can effectively ensure the safe operation of the device and continuous oxygen supply; The product liquid oxygen evaporates under high pressure, which greatly reduces the possibility of hydrocarbon accumulation. <br>2. Reliability High- <br>low temperature high-pressure liquid oxygen pump and booster expander adopt imported famous brand products, product performance is reliable, liquid oxygen pump achieves online cold backup, if the running pump fails, the backup pump can automatically start to reach work within 10 seconds Load; <br>the product of this device is high-pressure oxygen, and the liquid oxygen pump in the internal compression process replaces the oxygen compressor in the external compression process, and the operating reliability is greatly increased; the <br>high-efficiency turbocharger turboexpander is used to effectively recover the turboexpander. Work, increase the unit cooling capacity and effectively reduce the system energy consumption; <br>using a double bed molecular sieve purification system to make the device use longer. <br>3. Low investment cost, a more reasonable configuration <br>using the turbocharger compression process and low-temperature high-pressure liquid pump investment + plate heat exchanger than the <br>lower outer compressed oxygen compressor; a main air compressor and a common steam turbine supercharger Driven, the equipment configuration is compact and reasonable; <br>low-pressure nitrogen is directly extracted from the lower tower, and no nitrogen compressor is required to pressurize, reducing investment. <br>4. Adopting advanced and reliable DCS control system; <br>complete air separation plant adopts DCS control system, key control points adopt redundant configuration, and the reliability of equipment safe operation is high. <br>5. The process is optimized. <br>Fully utilize the surplus nitrogen and dirty nitrogen to recover its cooling capacity, configure the chiller according to the requirements; replace the traditional steam heater with an energy-saving steam heater, the steam consumption is effectively reduced, and the condensate is fully recovered.

1. Good security<br>Using the liquid oxygen internal compression process, the main condenser adopts the bath structure, full-immersion operation, increases the cycle multiple of the main cold liquid oxygen, prevents the main cold explosion caused by the hydrogen hydrocarbons and so on on the main cold heat exchange surface;<br>2. High reliability<br>Low-pressure high-pressure liquid oxygen pump and supercharged expander using imported brand-name products, product performance is reliable, liquid oxygen pump to achieve on-line cold preparation, if the operation of the pump failure, the backup pump can be automatically started within 10 seconds to reach the workload; <br>The product of this device is high-pressure oxygen, and the liquid oxygen pump in the internal compression process replaces the oxygen compressor in the external compression process, and the operating reliability is greatly increased. <br>The efficient supercharged turbine expander is used to effectively recover the work generated by the turbine expander, improve the unit cooling capacity and effectively reduce the energy consumption of the system. <br>The use of bunk bed molecular sieve purification system, so that the device life cycle is longer.<br>3. Low investment costs and more reasonable configuration<br>Investment ratio of boosters and cryogenic liquid pumps and high-pressure plate heat exchangers after the introduction of the internal compression process <br>The external compression of the oxygen press is low, the main air compressor and supercharger share a turbine drive, the equipment configuration is compact and reasonable;<br>Low-pressure nitrogen is drawn directly from the lower tower, eliminating the need for a nitrogen press to pressurize and reducing investment.<br>4. Adopt advanced and reliable DCS control system;<br>The complete set of air separation device slots the DCS control system, the key control points adopt redundant configuration, the reliable operation of the equipment is high.<br>5. Process to optimize the design.<br>Full use of surplus nitrogen and nitrogen pollution to recover its cold volume, according to the requirements of the configuration of chillers, the use of energy-saving steam heaters to replace the traditional steam heater, steam consumption has been effectively reduced, condensate fully recovered.

1. Good safety<br>The internal compression process of liquid oxygen is adopted, the main condenser adopts the bath structure, full immersion operation, increases the circulation ratio of the liquid oxygen of the main cooling, prevents the main cooling explosion caused by the precipitation of hydrocarbons on the surface of the main cooling heat exchange, and the internal compression liquid oxygen pump replaces the external compression oxygen compressor to greatly reduce the fire hazard; The two liquid oxygen pumps fully realize on-line automatic startup and switching operation procedures, which can effectively ensure the safe operation and continuous oxygen supply of the device; the product liquid oxygen evaporates under high pressure, which greatly reduces the possibility of hydrocarbon accumulation.<br>2. High reliability<br>The low temperature and high pressure liquid oxygen pump and booster expander are imported famous brand products with reliable performance. The liquid oxygen pump realizes online cold standby. If the running pump fails, the standby pump can automatically start up to work load within 10 seconds;<br>The product of the device is high-pressure oxygen. The liquid oxygen pump in the internal compression process replaces the oxygen compressor in the external compression process, so the operation reliability is greatly increased;<br>High efficiency turboexpander is adopted to effectively recover the power generated by the turboexpander, improve the unit cooling capacity and effectively reduce the energy consumption of the system;<br>The double bed molecular sieve purification system is used to prolong the service life of the device<br>3. Low investment cost and more reasonable allocation<br>Investment ratio of booster + low temperature liquid pump + high pressure plate heat exchanger with internal compression process<br>The main air compressor and supercharger share one steam turbine drive, and the equipment configuration is compact and reasonable;<br>Low pressure nitrogen is directly extracted from the lower tower, and no nitrogen compressor is needed to pressurize, thus reducing investment.<br>4. Adopt advanced and reliable DCS control system;<br>The complete set of air separation unit adopts DCS control system, the key control points adopt redundant configuration, and the reliability of safe operation of the equipment is high.<br>5. Optimize the process design.<br>Make full use of the surplus nitrogen and waste nitrogen to recover their cooling capacity, and configure water chillers according to the requirements; replace the traditional steam heater with energy-saving steam heater, the steam consumption is effectively reduced, and the condensate is fully recovered.<br>