How to Reasonably Select Liquid Loading Arms (Loading Arms)
A liquid loading arm is a device composed of a rotary joint with flexible rotation, good sealing performance, and high load-bearing capacity, combined with pipelines, pipe fittings, balancing devices, support mechanisms, and control systems. It is mainly used for transferring fluid materials between tank trucks, tankers, and pipelines. So, how do we select a suitable liquid loading arm for daily use?
1. Determine Liquid Physical Properties
Physical properties of the liquid (including density, viscosity, temperature, corrosiveness, etc.) are the premise for selection.
For high-density and high-viscosity liquids: Choose corrosion-resistant and wear-resistant loading arms.
For high-temperature liquids: Select loading arms with high-temperature resistance.
2. Determine Liquid Flow Rate
The flow rate is a key parameter, as the loading arm must meet transportation requirements.
Confirm the flow rate requirements of the liquid storage tank and pipeline, and add a reasonable margin to ensure transportation efficiency.
3. Determine Liquid Transportation Distance
The transportation distance affects the flow rate capacity of the loading arm.
Consider the distance between the storage tank and pipeline during selection.
4. Determine Liquid Transportation Height
The transportation height is influenced by gravity and resistance.
Calculate based on actual conditions to ensure the height requirement is met.
5. Determine Liquid Transportation Speed
The speed affects transportation efficiency: too fast may cause impact, too slow may degrade liquid quality.
Reasonably determine the speed to balance efficiency and safety.
6. Determine Liquid Transportation Mode
Gravity conveying: Transports liquid from high to low positions.
Suction conveying: Uses a pump to draw liquid into the pipeline.
Choose the mode based on practical conditions.
7. Select Appropriate Loading Arm Type
Straight-axis loading arms: Suitable for short transportation distances and low heights.
Bent-axis loading arms: Suitable for long distances and high heights.
Consider the working environment and usage requirements to select the type.
Conclusion
Selecting a liquid loading arm requires comprehensive consideration of multiple factors, including physical properties, flow rate, distance, height, speed, transportation mode, and type. Only by integrating these factors can the most suitable loading arm be chosen to ensure efficient and safe material transportation.
