Sanitary Rotary Vane Pumps Greatly Improve The Ability To Pass Dirt
Sanitary Rotary Lobe Pump is suitable for the discharge of seriously polluted wastewater from factories and commerce, sewage discharge stations in main residential areas, water distribution systems of urban sewage treatment plants, drainage stations of civil air defense systems, water supply equipment of water plants, sewage discharge from hospitals and hotels, municipal engineering construction sites, supporting machines of mines, rural biogas pools, farmland irrigation and other industries. It can be used to convey sewage and dirt with particles, and can also be used for clean water and weakly corrosive media. The double-blade impeller structure greatly improves the passing capacity of dirt; the mechanical seal of the sanitary rotary vane pump adopts a new type of grinding pair and runs in the oil chamber for a long time; the overall structure is compact, small in size, low in noise, and has significant energy-saving effects. It is easy to repair and replace by users; the automatic control cabinet can automatically control the overrun and stop of the pump according to the required liquefaction changes, without the need for special personnel to supervise, and is extremely convenient to use.
The self-priming height of sanitary rotary vane pumps is about 5 meters. If it exceeds the specified self-priming height, it will also be the reason why the self-priming pump cannot pump water. In addition, some users have multiple elbows in the water suction pipe. The number of elbows allowed for the inlet pipe elbows of the self-priming pump in normal installation and use is preferably between 1 and 2. Exceeding the height will also cause the self-priming pump to fail to pump water. If it exceeds 5 meters and is within 9 meters, it is recommended to use our company's strong self-priming pump or the fastest self-priming pump.
The head required by the sanitary rotary vane pump system is another important performance data for selecting a pump. Generally, the head after enlarging the margin by 5%-10% is used to select the type. Liquid properties include the name of the liquid medium, physical properties, chemical properties and other properties. Physical properties include temperature c density d, viscosity u, solid particle diameter and gas content in the medium, etc. This involves the system head, sanitary rotary vane pump effective cavitation margin calculation and suitable pump type: chemical properties, mainly refer to the chemical corrosiveness and toxicity of the liquid medium, which is an important basis for selecting pump materials and which type of shaft seal to choose.
When the sanitary rotary vane pump is directly connected to the motor, attention should be paid to the coaxiality between the pump shaft and the motor output; the accuracy of the pump installation has a great impact on the running stability and service life of the pump, so it must be carefully installed and corrected. The nut must be firmly fixed and locked to prevent the nut from loosening, otherwise it is easy to cause the impeller to move and cause mechanical failure. In order to keep a certain amount of storage liquid in the pump body to achieve better self-priming ability and prevent dry friction of the mechanical seal, the pump inlet must be higher than the center line of the pump shaft. The installation height of the suction port cannot exceed 5 meters. When conditions permit, the installation height of the suction port should be as low as possible below the water level of the pool, and the length of the suction pipe should be shortened as much as possible, with fewer elbows, which is conducive to shortening the self-priming time and improving the self-priming function. The valves, flanges, etc. in the suction pipeline of the sanitary rotary vane pump should be strictly prevented from leaking or leaking liquid, that is, no leakage is allowed in the suction pipeline.
