In liquid argon vaporization facilities, how should the flow rate of the return gas pressurization pipeline in the liquid argon storage tank be determined?

Determining the flow rate of the return gas pressurization pipeline in a liquid argon storage tank usually requires considering the following factors: 1. **Vaporization rate**: The flow rate of the return gas pressurization pipeline is generally directly related to the vaporization rate of the tank. The required return gas flow rate can be estimated based on the amount of gasification, to ensure stable pressure of the gas in the storage tank. Generally, the return gas flow rate is set at a certain percentage of the vaporization volume; this percentage varies depending on the specific application and design requirements. However, it is common to set the return gas flow rate at 100% to 150% of the vaporization volume. 2. **Pipe size and resistance**: The diameter and length of the pipes affect flow velocity and pressure loss. During design, it is necessary to ensure that the pipe size is suitable for the expected flow rate, while maintaining a reasonable flow velocity in order to avoid pressure losses and pipe wear caused by excessively high flow speeds. 3. **Flow rate**: The flow rate of the return air for pressure enhancement usually needs to be kept within a reasonable range to avoid excessive pressure losses and noise. The specific value of the flow rate depends on the pipeline design and system requirements, but the generally recommended range is 15 to 30 meters per second. 4. **System Requirements and Security Standards**: The overall requirements of the system as well as relevant security standards must also be taken into consideration during design. For example, ensure that the system has sufficient pressure and flow to meet the requirements at the point of use, while complying with relevant safety regulations and standards. In the actual design process, it is recommended to work with professional gas equipment suppliers or engineers, who can provide more specific design suggestions and calculations to ensure the safe and efficient operation of the system. .