What are the advantages of the sewage pump
1. Compact structure and small footprint. Since the sewage pump works submerged in the liquid, it can be directly installed in the sewage pool, and there is no need to build a special pump room to install the pump and the machine, which can save a lot of land and infrastructure costs.
2. Easy installation and maintenance. Small sewage pumps can be installed freely, and large sewage pumps are generally equipped with automatic coupling devices for automatic installation, which is very convenient for installation and maintenance.
3. Long continuous operation time. Because the pump and the motor are coaxial, the shaft is short, and the rotating parts are light in weight, so the load (radial) on the bearing is relatively small, and the service life is much longer than that of the general pump.
4. There are no problems such as cavitation damage and water diversion. Especially the latter point brings great convenience to the operator.
5. Low vibration and noise, low motor temperature rise, no pollution to the environment.
Operation rules of sewage pump
1. Before operation, use a megohmmeter to check the insulation resistance of the stator winding of the motor to the ground, and the minimum shall not be less than 50 megohms Europe.
2. Check whether the cable is damaged or broken. If it is damaged, it must be replaced in time to avoid leakage; the cross-section of the cable should match the current.
3. When the voltage exceeds ±10% of the rated voltage, do not start the electric pump.
4. To ensure safe use, the ground wire in the four-core cable must be grounded reliably to prevent electric shock.
5. When the electric pump is submerged in the water, it should be lifted vertically, and it is not allowed to lay on the ground horizontally, and it should not fall into the sludge. When stopping use, the electric pump should be hoisted, cleaned, placed in a dry place, and should be protected from freezing.
6. It is forbidden to use the cable as a lifting rope for installation.
7. Check the rotation direction of the rotor, it should be clockwise when viewed from top to bottom.
8. The outdoor switch or grounding wire should be protected from rain and moisture. It is forbidden to touch the switch with wet hands or bare feet to prevent electric shock.
9. When moving the electric pump, the power supply must be cut off, and people should not touch the water source when the electric pump is running to prevent personal accidents caused by leakage.
10. It is strictly forbidden to run the motor without phase. If the fuse is found to be blown, the reason should be checked before continuing to use it, and the fuse should not be enlarged arbitrarily.
11. When the stirring submersible sewage pump is running, it should be managed by a special person. If any abnormal phenomenon is found, it should be stopped immediately for inspection and troubleshooting. (referring to the situation without automatic protection cabinet).
12. After the electric pump has been running normally for half a year under the specified working medium conditions, the sealing condition of the oil chamber should be checked. If the oil in the oil chamber is milky or water is precipitated, the No. 10 to 20 should be replaced in time. Mechanical oil and mechanical seal. For electric pumps used in harsh working conditions, it should be overhauled more often.
13. The user should select the appropriate flow head according to the actual working conditions to achieve the best use effect. The parameters shown on the pump nameplate or manual are the best working conditions for the pump. Choose to use it within (0.7~1.2) times the optimal flow rate, and prohibit the use of over-flow rate, otherwise the flow rate is too large, and the head is too low, which will easily overload the motor.
