The method of prolonging the service life of the mechanical seal of the circulating water pump

In terms of the service life of the mechanical seal of the circulating water pump, in order to better meet the use requirements, meet the use efficiency and service life, it is necessary to regularly maintain and repair the seals, but the maintenance and repair operations require correct operation methods, so connect It will be introduced in detail below.

①The leakage caused by loose parts should be avoided, and attention should be paid to the heating phenomenon caused by impurities entering the end face and whether there is abnormal noise during operation. For pumps running continuously, not only should pay attention to prevent dry friction when driving, but also pay attention to preventing dry friction during operation. Do not allow the pump to evacuate, if necessary, set an automatic device to prevent pump evacuation. For pumps running intermittently, attention should be paid to the crystals formed due to drying of the material after the pump is stopped, or the crystals precipitated by cooling, and heating or flushing measures should be taken when the pump is started to prevent the crystals from scratching the end face and affecting the sealing effect.

②Whether the circulating protection systems and instruments such as flushing and cooling work normally and stably. It is necessary to pay attention to the failure of cooling due to sudden water stoppage, resulting in seal failure, or accidents due to blockage of cooling pipes, flushing pipes, and pressure equalizing pipes.

③The vibration, heat and other factors of the centrifugal pump itself will also affect the sealing performance, which must be observed frequently. When the bearing part is damaged, it will also affect the sealing performance, so pay attention to whether the bearing is hot and whether the sound is abnormal during operation, so that it can be repaired in time.

The mechanical seal is an important seal in the circulating water pump. It is installed at the connection point between the motor and the pump body to ensure that the medium does not leak out during the operation of the pump. The mechanical seal is also a kind of wearing part of the water pump. The use efficiency of the pump will cause more damage to the pump for a long time. Therefore, in the daily use of the water pump, the seals must also be properly maintained in order to have a better sealing effect and a long service life.