Pump maintenance

It must be achieved in accordance with the “6S” requirements!

This needs to be done; every time the equipment is repaired, it must go through this basic maintenance process.

Daily maintenance of mechanical pumps: 1. Cleaning, including the pump body, pump base, and related equipment. 2. Check the cooling water system, or the oil sealing system. 3. Perform regular shaft turning, especially before starting the machine. 4. Inspect the lubrication system by observing through the sight glass to check for leaks, discoloration, or water contamination. 5. Regularly listen to the sounds and touch the motor to check for any abnormal noises or overheating.

We do not have such mandatory requirements. This is related to the actual conditions of the factory, as the implementation cost is too high in small factories.

Although there’s no official rule specifying this, we’ve always done it this way; it’s also what’s required by those in charge. All we can do is carry out the orders. With just one order from the boss, thousands of people can be made to work to death, haha

A regulation that really frustrates the workers. For example: there should be no oil stains outside the bearing housing, and the screw rod must be polished with sandpaper until it is shiny. I don’t understand it either – if there’s a little oil on the surface, how can that prevent rusting? Why does it have to be wiped off? Sigh.

Abroad, it’s only required to clean the device’s nameplate so that it can be read clearly

The groove reaches the bottom, the shaft is exposed to light, and the equipment shows its true color. This is something that all chemical companies have.

We require the equipment to show its true color, so it must be cleaned thoroughly. During the monthly inspections, management uses white gloves to check whether there is any dirt, so it needs to be cleaned completely every month; it’s fine if it’s just kept clean on a regular basis.

To maintain equipment, one must start with the most basic tasks, and cleaning the equipment units is the most fundamental of these tasks; it helps to foster a strong emphasis on equipment management.

That’s for sure; I think this should be done from any perspective! Just in terms of the professionalism required for equipment maintenance, dust on the equipment can affect the service life of the motors and seals ； Secondly, if you don’t even wipe the dust off the equipment, how can there be any talk of maintenance!

When the groove reaches the bottom, the shaft is exposed to light, and the equipment shows its true color – something that seems impossible to achieve in any older refinery across the country, unless it’s a newly built facility. In some cases, the screw rods have to be polished with sandpaper; we tried this in our facility back in the 1990s, but it turned out that this method definitely affects the lifespan of the screw rods. On top of that, it’s necessary to apply lubricant to the screw rods regularly for maintenance. Here’s a brief overview of the maintenance rules regarding pumps in our facility: 1. Regularly turn the standby pumps manually. Once a day, by 180° each time, the workshop equipment staff must conduct inspections. 2. Vibration of key pumps and motors is measured daily to enable early detection of any significant issues. 3. Inspections are carried out every 2 hours, focusing on the oil level and quality of the lubricating oil used in the pumps, seal leakage, and other operational conditions. 4. Pumps are switched over regularly; key equipment is typically switched over once a month to ensure that backup pumps are always in good condition. 5. Temperature monitoring is conducted; when time permits, an infrared thermometer is used to check changes in the temperature of the bearing housings

These are the requirements of our domestic refineries and chemical plants; in particular, large state-owned enterprises have very high demands regarding the standardization of equipment. However, foreign countries do not have high requirements in this regard; as long as the pump is functional and not faulty, that is sufficient. In my opinion, the key is to carry out proper daily maintenance of the pumps, such as checking the lubricant level every day, turning the standby pumps manually, and monitoring the pump’s vibration levels and bearing temperatures, among other things. It is most important to ensure that the pump operates under optimal conditions; as for the cleanliness of the pump, I think it is less important. There’s no need to spend too much time and effort on this issue, as that would be putting the cart before the horse.

The operator is responsible for the on-site management of this position, ensuring that the following standards are met: “one level” (the floor is level), “two cleanings” (doors, windows, and glass are clean; walls are clean), “three visibilities” (axes are visible, trenches have a bottom visible, and equipment shows its original color), “four no’s” (no weeds, no trash, no waste materials, and no unnecessary equipment inside the facility), and “five things that must not be missing” (bolt handles are present, trench covers are in place, lighting facilities are available, doors and window glass are intact, and insulation paint is present). Any issues such as dirt, disorder, shortages, rust, or leaks that can be resolved should be addressed immediately to maintain good environmental hygiene and ensure civilized production practices.

There is such a requirement, along with the need for a rotary pump; however, nowadays shielded electric pumps are mostly used, and the equipment itself is cleaner as well, so a rotary pump is no longer necessary.

There is a lot of dust in spring, making it difficult to keep the outdoor unit pumps clean!