Reasons for affecting the operation of high-lift submersible pumps

Classification:

The following is an introduction to the reasons affecting the operation of high-lift submersible pumps. Leakage problem, the high-lift submersible pump, as the name implies, is that the pump and the machine are immersed in the water, so the leakage problem is one of the important factors affecting the normal operation of the submersible pump.

The following is an introduction to the reasons affecting the operation of high-lift submersible pumps.

ImpactHigh-lift submersible pumpMain factors of operation

Generally speaking, the main factors affecting the normal operation of high-lift submersible pumps are as follows:

1. Leakage problem. The high-lift submersible pump, as the name implies, is that the pump and the machine are immersed in the water, so the leakage problem is one of the important factors that affect the normal operation of the submersible pump.

2. When the rotor is locked and the high-lift submersible pump is locked, the stator winding will generate a locked current. The locked current is 5 to 7 times the normal full load current. If there is no corresponding protection measure, the submersible pump will soon burn down. There are many reasons for the stalling of the submersible pump, such as the stuck impeller, the mechanical seal debris sticking to the shaft, dirt winding, etc.

3. The power supply voltage is too low or the frequency is too low.

4. Wear and corrosion. Wear will greatly reduce the performance of the electric pump. The flow, head, and efficiency will be reduced. The impeller and pump cover will rust, and the rotor will also be locked. The corrosion of submersible pump parts will not only affect the performance of the pump, but also Shorten its service life.

5. Cable cracking and breaking. Cable cracking and breaking are not only easy to cause electric shock accidents, but also the pump is likely to be in a two-phase working state during operation, which will not produce water and easily damage the motor.

高扬程潜水泵

　　High-lift submersible pumpNotes in operation

1. When the submersible sewage pump is run without water, the running time shall not exceed the rated time. The volume of the suction pool can ensure that the water level of the submersible sewage pump is high during startup and operation, so as to ensure the cooling effect of the motor and avoid frequent start-up and stop caused by large fluctuations in water level. Frequent startup of large and medium-sized submersible sewage pumps has a great impact on the performance of the pump.

2. When the humidity sensor or temperature sensor alarms, or the vibration and noise of the pump body during operation are abnormal; or when the output water pressure drops and the power consumption rises significantly, the submersible sewage pump should be stopped immediately for maintenance.

3. Some submersible pumps with poor sealing performance are soaked in water for a long time. Even if they are not used, the insulation value will gradually decrease, so that they cannot be put into use after comparison, and even the time for the edge to disappear is shorter than that of the submersible sewage pump running continuously in water. Therefore, high-lift submersible pumps sometimes cannot be used as the backup of the suction pool. If conditions permit, they can be used as the backup outside the submersible pump, stop the car immediately and lift it up, then put down the standby pump.

　　4.High-lift submersible pumpDo not start and stop too frequently, otherwise it will affect the service life of the submersible pump. When the submersible pump stops, the water in the pipeline will flow back. Restarting immediately at this time will cause the electric pump to overload when starting and bearing unnecessary impact load; in addition, if the submersible pump starts and stops too frequently, it will damage the parts with poor impact resistance, and then damage the entire electric pump.

5. After shutdown, the motor cannot be restarted until it is completely stopped.

6. The power supply must be cut off when checking the electric pump.

7. When the submersible pump is working, do not wash things, swim or put livestock in the nearby water to avoid electric shock.

Thank you for watching and wish you all a happy life.

How to store, transport and anti-corrosion measures for high-lift deep well pumps For well pumps containing packed wooden boxes, they should be placed on a flat concrete floor. For deep well pumps without packed wooden boxes, they should be discharged flat on the pump rack with 3 support points. Both sides shall not be suspended in the air for more than 1m.

Luohe Huali Pump Industry Held "Fire Safety Knowledge Training" Activity

Luohe Huali Pump Co., Ltd. "fire safety knowledge training"

Luohe Huali Pump Industry Held "Welcome May Day" 3rd Staff Games

Opening Ceremony On April 30, 2019, Luohe Huali Pump Industry Co., Ltd. held the third employee sports meeting "Welcome May Day. Technical manager Shi Qiuyu presided over the opening ceremony, sales manager Zhu Qiuyue delivered an opening speech, and general manager Zhu Weili announced the opening of the games. The main purpose of holding this sports meeting is to enrich the cultural life of employees, enhance the interaction and communication between departments, further create a good working atmosphere of cohesion and unity, and cultivate the sense of competition, cooperation and fairness of the majority of cadres and employees. Put your physical fitness and good mental outlook into work. There are 7 ratios in this sports meeting.