Water pump maintenance

Water pump maintenance:

Botou haina pump industry co., LTD in the pump industry development history, the mastery of the knowledge of water pump, today for everyone to share under the pump maintenance procedures on a regular basis:
1. Purpose: to ensure the good operation of the pump is always or standby state.
2. The scope of application: all building installation life water pump, fire pump, spray pump, pump, sewage pump, air-conditioning pumps.
3. Responsibilities: by the management office maintenance personnel responsible for the water pump maintenance on a regular basis.
Content of 4.
4.1 life water pump and air conditioning pump weekly routine check and maintenance, a full service every six months.
4.2 fire pump and spray pump every month, fill pressure pump for a trial run, February 10-15 minutes running time, fire pump when starting on the top of the pipe network water hydrant exports more than 6 m range, a comprehensive service every six months.
4.3 sewage pump, submersible pump, a full service every six months.
4.4 when the water pump maintenance should be connected to the pump body of the 2 m within the scope of pipelines with the pump valve, pressure gauge, and at the same time maintenance.
4.5 the maintenance of the pump body
4.5.1 should check the pump body without damage, nameplate in good condition, in the direction of flow indicates a clear, clean and tidy appearance and paint in good condition.
4.5.2 add lubricating oil, if oil discoloration, impurities, should be replaced.
4.5.3 check packing seal, if there is leakage should add or replace asbestos packing line.
4.5.4 coupling of the connecting bolt and rubber pad must be changed if there is damage.
4.5.5 tighten mounting screws and make antirust processing.
4.5.6 life water pump and air conditioning pump because of frequent operation, every year should be open on both ends of the coupling for cleaning or replacement of the bearing.
4.6 the maintenance of the machine
4.6.1 appearance inspection should be neat, nameplate, ground wire connection is good.
4.6.2 open motor terminal box wire connector, use 500 v megohmmeter test motor phase winding facies, contrast between the insulation resistance shall be not less than 0.5 ohms.
4.6.3 motor terminal box three-phase wire and connector should be firmly close.
4.7 related to the maintenance of the valve, pipe and accessories
4.7.1 the switch of each valve should be flexible and reliable, and no leakage inside and outside.
4.7.2 one-way valve action should be flexible, inside and outside the body without leaking.
4.7.3 gauge indicates accurate, clear dial.
4.7.4 pipeline and various accessories and neat appearance, no crack, painting should be complete without a loss.
Stating point move water pump to judge whether the correct, if wrong should be corrected.
4.8 the maintenance of the control cabinet
4.8.1 disconnect the main supply control cabinet, check the switch, start and stop button action should be flexible and reliable.
4.8.2 check incase air switch, contactor, relays, such as electric equipment are in good condition, fastening the electrical contact thrum and terminal connection screw.
4.8.3 clean dust control cabinet inside and outside.
4.8.4 on total power supply, check the power indicator should be normal.
4.9 starting pump maintenance, observe whether current meter, indicator light indicator is normal.
4.10 observe the pump running should be smooth, no obvious vibration and acoustic, pressure gauge indication is normal, controller of each electrical no bad noise.
5.0 the main pump maintenance project
5.1 single-suction clean water centrifugal pump maintenance projects and requirements
Maintenance projects
The operation requirements and technical requirements
1 check the stuffing box
This pump adopts the stuffing box seal, must pay attention to the elastic filler, too loose leaking too much impact performance, in normal, water leakage should be around 60 per minute (drop, drop to normal, water splashing around is not normal 2 check the mechanical sealing of this pump when using mechanical seal, avoid by all means running water case, also can only be instantaneous point when debugging, the mechanical device in normal operation with a small drop of water from the block before the hydrosphere is poured out of, when the water leakage is large, should check the friction ring, repair or replace the mechanical seal life of 8000 hours normally, generally don’t have to change as long as the exchange of a complete set of ring and static ring this pair of friction ring can be 3 lubrication bearing this pump adopts the bearing semi-closed, factory has to add high temperature grease, can run continuously after 1 year, a year after a 4 inspection need to add grease impeller cleaning foreign bodies in case of special circumstances, the pump impeller damage or rolled into the foreign body, need to check the cleaning, need to remove the bearing body and tail cover, to back out of the shaft and impeller, pump body and 5 check in and out of the water over don’t have to open the main parts, pump parts, including elastic coupling, mechanical seal, dynamic and static ring, O type rubber rolls, bearing, impeller nut, packing pressure plate, etc., d may also should pay attention to check, such as damage should be replaced in a timely manner.