Slurry pump preheating
Thread Content
During the operation of the slurry pump in catalytic units, it is common to observe that the standby pump suffers from the same erosion as the pump in use during its preheating process; in some cases, coking occurs and blockages arise, preventing the switch to standby mode. Without preheating, it is difficult to switch in an emergency. We tried to add a thin Dg20 tube between the inlet and outlet of the slurry pump; under normal conditions, the slurry circulates through this tube without entering the pump body ； Preheat the pump body using the normal method before use, which yields a good switching effect.
I have a gentle question: is it okay if the pump body doesn’t get hot? :lol
The pump body does not get hot; however, when the backup pump is started in an emergency situation, its temperature rises too quickly, which can easily lead to pump failures.
:loveliness: So I really want to ask the original poster, how can the pump body get hot without anything going inside it? Hehe:loveliness:
Reply to the fourth floor: Ensure that the pipelines remain unobstructed at all times; preheat the pump and switch it on using the standard procedures before use. This will help maintain the proper operation of the pump and prevent erosion damage to the impeller over time. I mentioned it earlier.
This kind of preheating is not a problem; the key issue is that over time, catalyst can accumulate inside the slurry pump, leading to blockages in the pump.
Normally, only the slurry pipeline is in circulation, and no slurry enters the pump body; therefore, no catalyst accumulates in the slurry pump.
But from preheating to putting the pump into use, it sometimes seems that rushing doesn’t help. Haste damages the pump, while slowness harms the heart!
This method sounds pretty good, but upon closer consideration, what is the purpose of preheating the backup pump? By comparing the method used by the original poster with the traditional approach, it becomes clear whether this method reduces the time required to preheat the pump. A comparison of the procedures and times involved in switching to the backup pump in emergency situations should make things clearer; in fact, this pump isn’t in a backup state to begin with. In production, safety is the top priority, followed by the smooth operation of the production process. The purpose of backup pumps is to serve as a substitute; under normal circumstances, it is necessary to switch between the two pumps regularly and to turn them manually on a daily basis. All equipment has a limited service life, and if the goal is merely to protect the pumps, no one will support your approach just because it reduces damage to those pumps in the long run. . . Shoes are bought to be worn while walking; it’s not right to refrain from using them.
The amount and speed of the preheated stream flowing through the pump shouldn’t be very high, right? Will it erode?
I have another question for the original poster: Loveliness:. Using the method you suggested, after the pump is stopped, is it still necessary to perform a purging process? Otherwise, won’t the inside of the pump freeze if no air is introduced to preheat it? Thank you! :lol
This line is present between the inlet and outlet of the pump.