South self-priming sewage pump maintenance skills Daquan

Self-priming sewage pump is a commonly used pump in the south. The principle is to use the momentum of the water flow, the impeller drives the pump impeller to pump water to the river bank. This type of pump can be pumped into the river, but it must be rushed or there is a gap. We understand the working characteristics of the self-priming sewage pump. Now let's take a look. How do we maintain the self-priming sewage pump?

South self-priming sewage pump maintenance skills Daquan

First of all, in the direction, it is necessary to regularly check whether the parts are abnormal. If there are any exceptions, check the instructions or other information and replace the parts if necessary. Check for self-priming pump lines and joints for loosening. Turn the self-priming pump by hand or tool to see if the sewage pump is flexible.

Second, try to control the flow rate and lift of the self-priming pump within the range indicated on the label to ensure that the self-priming pump operates at the highest efficiency point to obtain maximum energy savings.

Third, the self-priming pump during operation, the bearing temperature can not exceed 35C ambient temperature, the maximum temperature should not exceed 80C.

Fourth, if there is abnormal sound in the self-priming pump, stop it immediately to check the cause.

Fifth, when the sewage pump is to be stopped, close the gate valve and pressure gauge, and then stop the motor.

Sixth, when the self-priming sewage pump is not used for a long time and is used during the winter season, it is necessary to screw the plug of the lower part of the pump body to unscrew the medium and put it in the net. To prevent cracking (if sewage, please use clean water to clean the pump chamber).

Seventh, when the submersible sewage pump is not used for a long time, it should be cleaned and lifted in a ventilated and dry place. Pay attention to antifreeze. If placed in water, run for at least 30 minutes every 15 days (cannot be dry-ground) to check its function and adaptability.

Eighth, the cable shall be inspected at least once a year, and if damaged, replace it.

Ninth, carefully listen to whether the running sound of the motor is abnormal. Because the noise in the engine room during operation is relatively large, you can use a screwdriver or a hearing aid to assist in listening to both ends of the motor. If you listen to it often, you will not only find the motor and its dragging. The bad vibration of dynamic equipment, even the number of internal bearing oil can be judged, so that the timely addition of bearing oil, or replace the new bearing and other appropriate measures to deal with, to avoid the lack of dry grinding motor bearings and locked, go outside the circle, broom Burned out.

Tenth, submersible sewage pump operation failure, please follow the troubleshooting method, if still can not be resolved, and can not determine the cause, do not disassemble and chaos unauthorized repair, should immediately find someone to repair.