Maintenance of Chemical Pumps
Working inside a chemical factory, you are always prone to hazardous events –small or big! These uninvited and perilous occurrences can be altered or reduced down by several times if the factory assets and machineries are processed under lenses quite frequently. Talking of chemical factories, the most import machines employed in such terminals are the chemical pumps.
Safe, secured and convenient transportation of hazardous chemical liquid are the greatest testing errand for any Chemical Industry. Chemical Pumps are specifically exposed to hazardous acid attacks and often form the weakest point in chemical transport system. The media as well as the unforgiving environment inside of compound plants put levels of demand on the pump frameworks as far as wellbeing, financial variables and resulting upkeep is concerned.
Maintenance of a Chemical Pump:
Since numerous pumps have life span of 15 years or more, it is thus highly imperative for pump operators to go for stringent Life Cycle Cost (LCC) analysis. This helps in correct selection of a chemical pump based on lifetime expenses of maintenance, alongside buy, establishment, vitality utilization, operation, downtime, and natural security.
For a wide range of chemical pumps and working conditions, a process of routine maintenance will develop pump life. At the point when the pump is purchased, the pump maker will ordinarily prompt the plant administrator about the fundamental maintenance, yet it is the administrator who has the last say in regards to his products’ maintenance routine – whether, it has to be checked quite often with lesser insights or maintenance should be carried out seldom with major guides in mind.
The expense of unforeseen downtime is additionally critical when deciding the aggregate LCC of a pumping framework. Again, a product’s maintenance implies what measures to take after there is a serious downtime in the system. When the pump is back in real life, a post-repair appraisal should be carried out to distinguish zones where more proactive measures might have prevented possible breakdown.
Routine maintenance of chemical pumps:
Lubricating and bearings: Bearing temperature, vibration and lubricant level needs to be check thoroughly. The oil should be clear without any indications of foaming. An increment in bearing temperature maybe indicative of approaching failure!
Shaft seal: Mechanical seals should hint no obvious spillage. The tolerable leakage of packing is 40-50 drops per minute.
Vibration: Possible bearing failure can be preceded by an adjustment in bearing vibration. Undesirable vibration can likewise happen because of an adjustment in pump arrangement, the resonances between the pump and/or presence of cavitations, its establishment or valves in the suction or release lines.
Pressure difference: The contrast between the pressure readings at the release and the suction of the pump will give the aggregate pressure exerted by the pump. A progressive lessening in this aggregate pressure is indicative of the fact that the impeller clearance has widened. For this situation, altering the impeller clearance (for pumps with semi-open impellers) or supplanting the wear rings (for pumps with shut impellers) will restore the pump’s outline execution.
A chemical pump’s maintenance in every three months include:
•Foundation of the pumps needs to be monitored by holding the bolts for tightness.
•Change the oil after the initial 200 hours of operation for another pump and afterward at regular intervals or 2,000 working hours, whichever is first.
•Re-grease bearings at regular intervals or 2,000 working hours, whichever is first.
•Check the shaft arrangement.
Regular maintenance and recording of data and comparing it with the previous record will provide a possible upcoming failures or short comings of the chemical pumps.