What to do if there is a leak at the outlet of the industrial naphthalene hot oil pump?

Stop the pump and the gas supply to the tubular furnace immediately. Stop feeding, refluxing, and production. When the temperature of the circulating hot oil drops to 150 degrees, slowly open the gas purge line and carry out welding repairs at a slow pace.

First, use steam to blow at the leak site, and then decide whether to switch to the backup pump or initiate an emergency shutdown based on the situation on site

First, check if there is a large leakage at the pump outlet If it’s not too large and personnel can access it, start by using the backup pump to maintain normal production. Once the temperature of that pump drops, then drain it. It’s also necessary to determine the source of the leak: if it’s due to a gasket issue, replace the gasket; if it’s a weld defect, disconnect the relevant pipeline, install a blind flange, and use electric steam for welding repairs. Of course, proper fire safety measures must be taken. If the leak is too large and it is not possible to approach it, the circulation pump must be stopped first, as well as the tubular furnace. If necessary, steam should be introduced into the tubular furnace to cool it down and prevent the furnace tubes from burning out. After that, a backup pump can be used to repair the leak. For reference only, as it is not clear exactly where the leak is and how it is occurring Each problem should be analyzed on its own merits

It’s described in such general terms that it’s difficult for everyone to come up with specific suggestions; all they can do is guess. However, no matter what happens, one must not panic; instead, appropriate actions should be taken based on the situation.

1. If the leakage point is small, such as a leak in the gasket, try to tighten it using steam purging. If there is a leak in the pipeline, also use steam purging and proceed with normal shutdown procedures. 2. If the leakage point is large, and smoke fills the entire pump room, immediately turn off the power supply to the pump room from the control room, to prevent the power supply from causing ignition of the oil and gas. Close the outlet valve at the bottom of the tower, stop heating with the tubular furnace, and introduce fire-fighting steam into it; thereafter, follow the emergency shutdown procedures.

1. If the leakage point is small, such as a leak in the gasket, try to tighten it using steam purging; if there is a leak in the pipeline, use steam purging and proceed with normal shutdown procedures. 2. If the leakage point is large, and smoke fills the entire pump room, immediately initiate emergency shutdown procedures.