Since the balance corrosion resistant chemical centrifugal pump maintenance and maintenance

Due to the particularity of their work environment, such as corrosion, acid medium conveying industrial, chemical transportation, etc. , so in order to keep the balance corrosion-resistant chemical centrifugal pump efficiency and stable working conditions, corrosion resistant chemical centrifugal water pump type such as DFP self-balancing stainless steel corrosion resistant chemical pump must be regularly maintenance, repair, maintenance interval depends on the pump operating conditions.

self balancing corrosion-resistant chemical centrifugal pump maintenance

regularly check the performance of the pump ( Such as flow, lift, vibration, etc. ) And do record, according to these data to analyze whether the pump work, whether you need to repair, or which one part of the set to repair.

under the general conditions, if you insist on a precise test, record, regular summary record, then according to the operating conditions can get pump is in need of maintenance and reliable data.

in addition to the pump monitoring within the prescribed time, the maintenance of the following is often:

a) Check whether the fastening, pump, motor, pump base if loose will cause the vibration of the pump.

      b） Check of the condition of the instrument, fuses, check whether the pipe leakage or loose, or other forms of damage, if you need to repair immediately overhaul.

      c） Gland cannot too tight, otherwise it will affect the service life of the packing.

      d） Bearing grease every working 100 h filling.

self balancing corrosion-resistant chemical centrifugal pump maintenance

corrosion-resistant chemical centrifugal pump maintenance of chemical centrifugal water pump is the first step is to remove and clean, carefully check all the parts of wear and deformation.

1, the spindle repair: chemical centrifugal pump shaft, due to the rotation vibration or suddenly crash and bending or cracking; Shaft surface due to friction or severe depression resulting from the transport medium corrosion and wear and tear, resulting in the radial runout or strength to drop, affect the use, needs to be repaired. For the surface erosion can be oiled emery cloth smooth. The need when shaft bending straightening; Very serious shaft can be used for damage after weld repairs, spraying, electroplating grinding method of repair. After repair retesting geometric accuracy and radial runout.

2, axle housing repair: chemical centrifugal pump is running, the shaft sleeve in contact with the packing part, which is generated by the friction wear and radial runout. For serious abrasion weld-repair after turning can be used to repair, to wear collar need to change.

3, impeller repair: is one of the vulnerable parts of chemical centrifugal pump impeller, the impeller rotates, due to friction corrosion damage, the size and shape change affects the performance of chemical centrifugal pump, such as need to repair and replacement in time. Available for impeller damage is not too serious, the method of repair welding repair. Repair, the impeller first heated to 600 ℃, and then repair welding, and pay attention to the slow cooling after welding, lest produce new crack. Cooling before turning to its original size. If discover the key pine ( Rolling key) , in the case of allowing can widen the keyway or grooving again ( In the 90 ° or 180 °) from the original key And with key again. If there is serious sand holes on the impeller or severe damage to the need to replace impeller.

4, good for the repair impeller should be looking for static balancing anew. Repair good impeller, the transverse momentum is less than 0. 2 mm, impeller outer ring and the seal of the radial runout amount shall not exceed 0. 05mm。

self balancing corrosion-resistant chemical centrifugal pump maintenance and repair of the note

1, pump maintenance tools and are not allowed to be placed on any object. Keep motor earthing line in good condition, clean when attention not to spray water on the motor.

2, shall go through the formalities of relevant safety maintenance before repair.

3, cut off the power, release the remaining liquid, the valve at the inlet and outlet of the closed or blocked blind plate from system. Hang up the 'forbidden' brand.

4, disassembly, cleaning, and replacement of spare parts and maintenance tools to be neat, do civilized overhaul.

      1. The water must be sealed.

      2. Ban pump cavitation condition in the long run. 3. Regularly check for corrosion resistant centrifugal pump, prohibit operation of the pump in the flow, motor current long running. 4. Mechanical seal lubrication should be clean without solid particles, and must ensure that the mechanical seal will not work under the condition of dry grinding. 5, due to the corrosion resistance of the centrifugal water pump to the particularity of working environment, the pump should be in the process of running modes, so as to avoid accidents. 6, regular check and add the lubricating oil pump unit 7, if found work with noise and vibration problems, should stop work wear happens to check the mechanical parts for 8, pump use time is too long, should check the pump parts, bearings, units, etc. , to avoid the pump work accidents caused by mechanical wear

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