Is it better for an asphalt pump to run continuously rather than intermittently?
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There is one asphalt pump per unit, and it remains running even when not loaded onto a vehicle; it is said that if the pump is turned off, the asphalt will solidify, making it difficult to start the pump again. Also, starting and stopping frequently is not good for the pump. Is that so?
Indeed, the same is true for some media under conditions where crystallization or precipitation occurs; they can operate normally for a long time. However, if maintenance is not proper when they are turned on and off frequently, failures can easily occur, even leading to damage.
Asphalt solidifies when its temperature is low. To restart it, it is necessary to heat it with steam for a long time; in areas such as mechanical seals, if the heating is insufficient, the bellows cannot perform their compensatory function and will easily get damaged. Keep it on all the time
This non-operational state relies on cycling to remain in operation; the medium in question generally exhibits tendencies to undergo physical and chemical changes, such as local aggregation, crystal precipitation, sedimentation, and solidification. It is greatly influenced by factors such as temperature and pressure. As for how to define this condition, it is necessary to consider the extent of the changes in the medium, as well as the associated costs
It is preferable for heavy oil pumps to operate on a long-term basis, as starting the pump again after it has been stopped leads to the greatest risk of leakage at the seals. When the pump stops, its temperature drops, causing the fluid at the seal areas to condense; this results in significant torque being applied to the seals when they are restarted, thereby damaging them.
Indeed, as the experts above have said, it is recommended to keep it turned on. Turning it on and off not only increases the workload but also raises costs related to repairs and replacements, as well as subsequent maintenance parts.
Thank you to everyone above for their answers. Running it for a long time might be beneficial for the pump, but electricity consumption will increase
It depends on how you make your choice. You can use variable frequency to save energy.
Indeed, as the moderator said, there is always a trade-off; the power consumption of these one or two pumps is not as high as several hundred or thousands of KW in the case of large units. Frequency conversion is a relatively suitable approach. The money saved on electricity consumption must be weighed against the costs associated with a repair – such as labor costs, expenses for purchasing replacement parts, and the impact on the normal operation of the equipment. It is up to the higher-level management at the organization in question to decide which factor is more important. :lol
Does a variable-frequency pump require a variable-frequency cabinet? I heard from the person in our workshop who is in charge of the equipment that there’s no place to store the cabinets
““I’m not Huang Rong; I don’t know any martial arts,” “I’m not a leader, so I don’t have to worry about such things”: lol