The maintenance process of the pump body, what to maintain the water pump

1. Installation. Assembly and disassembly.

1.Scrub all parts to be installed.

2.Install a mechanical seal on the motor spindle, and add a small amount of clean turbine oil or No. 20 engine oil to the surface of the mechanical seal with the dynamic and static rings.

3.Install the impeller and fasten it with the impeller nut.

4.loaded"0"ring, tighten the pump body and the motor end cover with bolts. Note that the gap between the front cover plate of the impeller and the pump body is 2 ten mm, and the outer ring of the impeller inlet and the pump body ensure a certain running clearance.

5.The order of disassembly is reversed.

Installation & Use.

1.Use rubber washers and bolts to connect the flanges at both ends of the pump body with the pipeline flanges, that is, to complete the installation. In order to facilitate the use and maintenance, a regulating valve should be installed on the inlet and outlet pipelines of the pump.

2.Open the inlet regulator to allow water to enter the pump to keep the seal chamber filled with liquid (otherwise the seal will be damaged) and close the outlet valve.

3.Turn on the power supply and jog to determine the correct steering.

4.After the steering is determined, the pump is started and operated.

5.Adjust the opening of the outlet valve so that the pump operates near the design point, according to the rated flow rate and head of the pump. For this purpose, it is better to install a pressure gauge near the outlet flange). Note: It is strictly forbidden for this pump to run without water to avoid damaging the seals.

2. Troubleshooting.

Fault. Cause.

Exclusion Method. 1.The pump does not produce water.

Not enough water was injected into the pump, the direction of rotation was wrong, and the impeller flow channel was blocked.

Then fill the water pump with water, pass through the impeller flow channel, and adjust the direction of rotation.

2.The pump flow is insufficient.

The pump is partially blocked, the number of revolutions is too low, the total head is higher than the pump rating, and the impeller is damaged.

Clean the pump and pipes, replace the impeller, increase the number of spins of the pump, and adjust the outlet valve.

3.Insufficient outlet pressure.

There is air in the liquid, the rotational speed is too low, the impeller is damaged, and the outlet valve is opened too wide.

Remove the air in the liquid, increase the pump speed, replace the impeller, and reduce the outlet valve.

4.The pump consumes too much power (the motor heats up).

Mechanical defects such as too small running clearance, motor shaft bending, loose bolts, etc., the pump works at too much flow, that is, the pump works well below the rated head.

The inspection machinery part adjusts the processing in time, and adjusts the outlet valve to make the pump work near the rated flow rate and head.

5.The water pump vibrates.

The piping system is not well supported, and the impeller is partially blocked, causing imbalance, cavitation, and air in the liquid.

Check the pump support department, tighten the nut, and pass through the impeller to balance it and remove the gas.

6.The pump is leaking.

The mechanical seal is damaged, the 0-ring is damaged, and the pump body is leaking.

Replace the mechanical seal and 0-ring, and weld the leakage of the pump body.

7.The pump is too loud.

The bearing is overheated and lacks oil, and the water pump is overloaded.

Specifically, you can also participate in the detailed description of the pump introduction of the pump factory below.

Second: to add bearing lubricating oil to the bearing body, to observe that the oil level should be at the center line of the oil standard, and the lubricating oil should be replaced or replenished in time. After 500 hours of operation of the oil-immersed water pump, the sealed oil should be replaced. The oil in the motor chamber of the water pump should be changed once a year.

Third: jog the pump motor, try to see if the pump motor is turned correctly, when the pump is running normally, open the outlet pressure gauge, if the pressure is suitable, gradually open the gate valve, and check whether the pump motor has a load situation.

1. When the engine water pump is correctly installed, it should be ensured that the geared water pump and the transmission gear are closely matched, and the belt driven water pump should ensure that the coaxiality of the pump shaft and the pulley is within the specified range. Prevents the pump from sloshing and exacerbating wear when the engine increases speed and load.

2. Adjust the tightness of the belt in time The fan belt should not be adjusted too tightly, otherwise it will increase the load of the pump bearing. If the two belts are driven, it should be ensured that the new, old and new, length and tightness of the two belts are the same, so as to prevent the two belts from being damaged by imbalance and imbalance due to different forces.

3. Timely lubricating oil water pump bearings should be lubricated in time, and the general vehicle should be filled once every 6000 8000km. In the actual angle, many drivers and repairmen often ignore the lubrication of the pump bearing, or because the grease nozzle is damaged and not replaced in time, it cannot be oiled at all, resulting in early damage to the bearing due to lack of oil, and at the same time causing the wear of the pump shaft and other components.

4. Do not block the overflow hole Some pumps have overflow holes at the shaft, and the overflow holes can observe whether the pump is leaking. The hole should not be blocked, if it is blocked, the leaking water will enter the bearing and destroy the lubrication, resulting in early damage to the bearing.

5. When releasing water in winter, it should be cleaned to prevent the water seal and pump shaft from freezing together due to water storage in the pump. When starting, it is very easy to rotate the pump shaft and tear the water seal and cause water leakage.

6. Remove the scale in the pump in time The scale accumulation time in the pump is too long, which weakens the pumping capacity of the pump, and the scale is easy to corrode the parts in the pump, resulting in early damage to the pump.

7. When replacing the water pump bearing, the appropriate bearing bearing should be selected, and the bearing should be tightly seated in the bearing seat during installation. The selected bearings should ensure reliable quality, otherwise the pump shaft will be worn due to the short service life of the bearings.

In order to ensure the normal use and life of the submersible sewage pump, regular inspection and maintenance should be carried out

1. Replace the sealing ring: after long-term use in the sewage medium, the gap between the impeller and the sealing ring may increase, resulting in a decrease in the flow and efficiency of the pump.

2. When the submersible sewage pump is not used for a long time, it should be cleaned and hoisted in a ventilated and dry place, and attention should be paid to anti-freezing. If placed in water, run at least 30min every 15 days (no dry grinding) to check its function and adaptability.

3. The cable should be inspected at least once a year, and if it is damaged, please replace it.

5. The submersible sewage pump has been injected with an appropriate amount of oil before leaving the factory to lubricate the mechanical seal, and the oil should be checked once a year. If water is found in the oil, it should be discharged, the oil should be changed, the gasket should be replaced, and the screw plug should be tightened. After three weeks, it must be re-checked, and if the oil becomes an emulsion again, the mechanical seal should be inspected and replaced if necessary (contact the company's after-sales service department).

1.Regularly inspect the motor, bearings, seals and other components of the pump to ensure its normal operation.

2.Clean the inlet and outlet pipes and filters of the water pump to prevent the pipes from clogging.

3.Replace the filter elements and seals of the pump regularly to ensure that they are functioning properly.

4.Before the operation of the water pump, check whether the power supply and wiring of the water pump are normal to avoid circuit failure.

5.During the operation of the pump, attention should be paid to the sound and temperature of the pump, and if any abnormality is found, it should be stopped for inspection in time.

6.When the pump is out of service for a long time, the water in the pump should be drained to avoid rust inside the pump.

7.Clean the casing and radiator of the pump regularly to ensure the heat dissipation effect of the pump.

8.During the operation of the pump, attention should be paid to the load of the pump to avoid overload operation.

9.Regularly inspect the cables and wiring of the pump to ensure that it is safe and reliable.

10.In the process of pump maintenance and maintenance, the instruction manual and maintenance manual of the pump should be followed to ensure the normal operation of the pump.

1. If the oil bearing is lubricated with oil, during the use of the water pump, it is necessary to observe whether the oil level is within the range of the oil mirror identification every time. If the oil is not enough, it should be refueled through the oil filling cup, and the oil should be cleaned and changed once a year. The bearing is lubricated with grease (commonly known as butter), and the oil is changed every 2000h during the use of the water pump.

Calcium grease is preferably used for grease, but No. 7019 grade bearing grease can also be used.

2. Change the shaft seal. Since the packing wears out over time, when water leakage or leakage exceeds the standard, it is necessary to consider whether the shaft seal needs to be compressed or replaced. For shaft seals with ordinary packing, the leakage is generally not greater than 30-60ml h, while the leakage of mechanical seals is generally not greater than 10ml h.

The mechanical seal of this system can ensure that there is no water leakage for 8000 hours in line with the water quality of the clean water pump, if the water leaks frequently during the shelf life, the water quality must be checked, especially in the circulating water, whether there are impurities, rust, etc. or poor installation of seals;

3. Rust paint. When the water pump is in use, it is usually in a humid environment, and some of the chilled water pumps that have not been insulated are covered with water (caused by condensation) on the surface of the pump body during operation, and in this way, part of the surface of the pump body will be rusted for a long time.

The maintenance methods of the water pump mainly include the following aspects:

Clean the pump regularly: Since the pump is used all year round, some dirt and debris will accumulate, which will affect the operation of the pump. Therefore, the pump needs to be cleaned every once in a while to remove debris and dirt from the pump.

Check the power cord of the water pump: Check whether the power cord of the water pump is in good contact and whether the wiring is damaged. If a problem is found, it needs to be replaced in time.

Check the motor of the water pump: Regularly check the working status of the pump motor and see if there is any abnormality. If there is any abnormality, it needs to be repaired in time.

Check the water pump bearing: The water pump bearing is an important part of the water pump, regularly check the working status of the bearing, if any abnormality is found, it should be replaced or repaired in time.

Check the sealing ring of the water pump: the sealing ring of the water pump is an important part to ensure the normal operation of the water pump, regularly check the working status of the sealing ring, and replace or repair it in time if any abnormality is found.

Regular lubricating oil: For turbine pumps and centrifugal pumps, regular lubricating oil is required to ensure the normal operation of the pump.

Regularly check the bolts and nuts of each part of the pump: the bolts and nuts of each part of the pump are easy to loosen, regularly check the tightening of the bolts and nuts, if there is any loosening phenomenon, they should be tightened in time.

Regularly check the pressure gauge and thermometer of the water pump: The pressure gauge and thermometer of the water pump refer to the important instruments of Jiliang to monitor the working status of the water pump, regularly check the accuracy and working status of the instrument, and replace or repair it in time if there is any abnormality.

In short, the maintenance of the pump is very important, which can extend the service life of the pump, reduce the failure rate, and ensure the normal operation of the pump. When operating the pump maintenance, it is necessary to follow the requirements of the pump instruction manual, if there is anything you do not understand, you should consult the relevant technical personnel in time.

The maintenance of the pump is an important measure to ensure its normal operation and extend its service life, and the following introduces some common pump maintenance methods:

Clean the pump regularly to remove water and debris from the pump to prevent clogging of the pump port.

Regularly inspect the bearings, mechanical seals, impellers and pump bodies and other components of the pump to ensure that they are running well and reduce wear.

Check the sealing performance of the water pump to avoid water leakage, especially the sealing performance of the mechanical seal needs to be checked regularly.

Check the motor and power supply circuit of the water pump to make sure that the motor is working properly and the wiring is well connected.

Regularly replace the wear parts of the water pump, such as impellers, bearings, etc.

Regularly inspect the drainage pipes of the pump to ensure that the drainage is smooth and avoid damage to the pump due to excessive water pressure.

When the pump is not used for a long time, the water in the pump should be discharged in time to avoid rust and corrosion inside the pump.

For the common problems of water pumps, such as pump leakage, abnormal operation, etc., it is necessary to investigate the fault in time, and repair and replace it.

In short, the maintenance of the pump is very important, which can effectively extend the service life of the pump and ensure its normal operation. At the same time, it is necessary to combine the specific pump type and use for maintenance to ensure the operation efficiency and safety of the pump. Silver Qi.

The maintenance of the pump can extend its service life and ensure its proper operation. Here are some common pump maintenance methods and operations:

Regular cleaning: Dust and debris often accumulate around the pump, which can affect the performance of the pump. Therefore, it is very important to regularly clean the pump housing and the area around the pump.

The housing can be cleaned with a soft-bristled brush or a wiping cloth, and dust and debris can be blown away with a vacuum cleaner or compressed air.

Check the seals: The pump seals are a critical component that ensures the proper operation of the pump. Regularly inspect seals for damage or deterioration and, if necessary, replace them.

Replace the filter element regularly: The filter element in the water pump is used to filter impurities in the water, preventing impurities from entering the pump and damaging its internal parts. Regular replacement of the filter element can ensure the normal operation of the pump and extend its service life.

Regularly inspect the cables and motors of the power deficit cavity: The cables and motors of the water pump are an important part of the normal operation of the water pump. Regularly inspect the wiring and insulation of cables and motors, and repair or replace them if necessary.

Regular lubrication: Bearings and gears of water pumps need oil or grease to keep them running well. Regular addition of the appropriate lubricant can extend the life of bearings and gears and ensure the normal operation of the water pump.

The above are some common pump maintenance methods and operations, but the specific maintenance methods may also vary depending on the different types of pumps, and should be maintained according to the model and instruction manual of the pump.