How to operate the 1% liquid oxygen discharge from the air separation cryogenic tank?

Firstly, this regulation on emissions is primarily based on safety considerations; emissions can be released in concentrated amounts or continuously. It should be clear that this 1% storage requirement does not apply to cold boxes; it refers rather to air separation units. It is necessary to clarify the concept of 1% in the equipment instructions. Some units have regulations regarding the daily emission amount, which are primarily based on the liquid level of the main condensation evaporator. Typically, the equipment used in external compression processes also produces some liquid oxygen, and this amount is included in the 1% allowance. And it is often higher than this 1%. As for which type of measuring cylinder to use, it doesn’t really matter; the main goal is to prevent the accumulation of harmful elements in the main condensation evaporator, and to ensure that the concentration of harmful elements in liquid oxygen does not exceed permissible levels. The discharge of liquid oxygen is regulated for this very purpose. It is important to note that once the levels of harmful elements exceed the permissible limits, discharging liquid can increase these concentrations; therefore, it is necessary to maintain a high liquid level during production and to discharge the liquid gradually. It should also be noted that with the use of liquid oxygen injectors, over time and due to the valves being exposed to low temperatures for extended periods, leaks may occur, or the valves may freeze and become unable to be operated. So it is better to carry out concentrated emissions in stages. For reference. It’s best to create a process to clarify the principles first and then discuss them. Taking a topic that has only been seen in books and discussing it makes it difficult to understand until the process is clarified. There is certainly a certain level of difficulty in understanding the principles behind this process.