There Are Two Flushing Methods For Sanitary Centrifugal Pumps
Sanitary Centrifugal Pump is a direct-connected pump shaft connection, consisting of a pump, a pump shaft and a standard motor. It is designed based on the principle of centrifugal force. The high-speed rotating impeller blades drive the water to rotate and throw the water out, thereby achieving the purpose of transportation. It is widely used in petroleum, chemical, pharmaceutical, electroplating, environmental protection, water treatment, film and television printing, national defense and other departments to pump flammable, explosive, toxic and precious liquids. It is an ideal pump for creating leak-free, pollution-free civilized workshops and civilized factories.
Sanitary centrifugal pumps have the characteristics of significant energy saving, spinning winding, no blockage, automatic installation and automatic control. It has a unique effect in discharging solid particles and long-fiber garbage. The pump of this product adopts a unique impeller structure and a new mechanical seal, which can effectively transport solids and long fibers. Compared with the traditional impeller, the impeller of this pump adopts a single-channel or double-channel form. It is similar to a curved pipe with the same cross-sectional size and has very good flowability. With a reasonable volute chamber, the pump has high efficiency and the impeller has been tested for dynamic and static balance, so that the pump has no vibration and low noise during operation.
Sanitary centrifugal pumps are single-stage single-suction vertical pumps that can be directly installed on the tank or collection tank cover. The pump body is partially immersed below the liquid level and is used to transport neutral or corrosive liquids, clean or liquids containing solid particles. Depending on the pumping medium, the flushing method should be reasonably selected. During the operation of the submersible pump, the friction between the sliding bearing and the sleeve will generate a lot of heat, and it must be fully and timely flushed to achieve the effect of cooling and lubrication. The correct selection of the flushing method affects the safe operation of the pump. There are two flushing methods for sanitary centrifugal pumps: self-flushing and external flushing.
Self-flushing method: This flushing method can be used when the pumping medium is a clean medium. A pipeline is led out at the pump outlet flange to allow the flushing liquid to flow to each sliding bearing, lubricate the bearing and take away the heat generated by the friction pair, reducing the bearing temperature.
External flushing method: When the pumping medium is a medium containing smaller particles, it is necessary to connect a pipeline from the outside to introduce clean flushing liquid to flush and lubricate each bearing, take away the heat generated by the friction pair, and prevent solid particles from entering the friction pair. In sewage treatment systems, external flushing is more common.
