I have a question regarding the oil transfer arm
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I would like to ask the experts: Can heavy oil be transported by using a transfer arm to connect it to a ship? If possible, how can we ensure that the oil transfer arm is thoroughly purged and does not get clogged, in the absence of any heating device on it?
I thought: There must be a heating device on the ship! ! ! There should be no heating device on the oil transfer arm; you can send a private message to the person who posted about the oil transfer arm on the forum! ! ! He should be able to answer your specific questions! ! ! ! :handshake :victory:
This estimate is a bit difficult! The main issue is the heavy oil pipelines; the oil transfer arms all need to be equipped with heating.
Heavy oil can be transported by connecting a transfer arm to the ship; after unloading from the ship, it can be cleaned using steam from the ship itself. The transfer arm is equipped with devices such as drain valves, which ensure that it is thoroughly cleaned and does not get clogged.
Sure, it is recommended to check: SY/T 5298-2002 Oil Transfer Arms for Port Loading and Unloading. This standard applies to oil transfer arms used for transporting crude oil, heavy oil, and refined oil between ports and ships; it is also suitable for oil transfer arms used to transport ballast water and other non-corrosive liquids with temperatures ranging from -20°C to 100°C. When transporting low-temperature, highly corrosive, or highly toxic media, the oil transfer arm may follow this standard, but additional requirements regarding materials, sealing, and safety reliability shall be imposed.
Heavy oil can be transported using marine oil transfer arms; as for how to carry out the transportation? More detailed information on Yuanhai Fluid Loading and Unloading Equipment Co., Ltd. is available for consultation. Steam purging can be used after transportation. The line flushing method can also be employed, using light diesel or heavy diesel to flush the lines, thereby filling the oil transfer arms or pipes with a medium that has good fluidity and is less prone to freezing and sticking, which facilitates subsequent transfers.
Heavy oil can be transported using transfer arms, and many refineries have used them. Last edited by Various flexible hoses on 2009-4-7 12:46]
Thank you to the moderator for recommending me. The answer to this question is yes: after the loading and unloading operations are completed, gas purging should be carried out (either steam or nitrogen can be used). It should be noted that the pipelines running along the vertical columns of the oil transfer arm must be insulated to prevent the heavy oil from solidifying in case the purging is not thorough enough. As for the pipelines on the inner and outer sections of the oil transfer arm, insulation is not necessary.
Thank you all for your valuable advice. Now I would like to explain the specific situation of our company, and I hope that you can give me some concrete guidance. Thank you in advance. Our company has nitrogen generation equipment, with a maximum storage pressure of 0.8 MPa. However, due to the long pipelines, the pressure at the oil transfer arm at the dock is only around 0.4–0.5 MPa. There is no heating system installed on the oil transfer arm. Under such conditions, how should we perform purging after each operation to ensure that the oil transfer arm does not get clogged?
I would like to ask how to implement electric heating for the fuel transfer arm? What budget is needed to do it? This post was last edited by uutanglee on 2009-4-15 10:56]
Our company has this. The oil transfer arm is capable of transferring heavy oil; when the ship transports heavy oil, the temperature of the oil itself is already not low. The nitrogen generation system is used to purge the pipelines, usually 2–3 times. Additionally, any remaining oil in the front part of the oil transfer arm is blown back onto the ship, while the remaining oil in the column section is removed using a screw pump. Electric heating is mainly used in the pipelines after oil transfer by the oil transfer arms; heating is activated in these pipelines. In winter, temperatures of 3–5 degrees plus or minus 2 degrees are generally sufficient to ensure proper operation. It is recommended to install an insulation layer on the pipeline
Immediately after completion of production, purge with nitrogen at a pressure of over 0.4 Mpa for 4–6 times
Yes, after loading the goods, purge with a pressure of around 0.6 MPA for 20–30 minutes