The realization of centrifugal pump automatic suction method

Self-priming pipeline centrifugal pump is a new type of pump designed and manufactured and promoted in China in recent years. It does not use the bottom valve, before starting, fill a small amount of water into the pump, when starting, it can automatically pump vacuum water. After stopping, the next time you start, you don't need to fill water again.

Therefore, the use of very convenient . 2. storage method of water filling with a large barrel or tank storage, it is placed in the vicinity of the pump, and make the bottom of the barrel slightly higher than the pump outlet; or in close proximity to the pump room side of the construction of the pool, the bottom of the pool will be slightly lower, forming a storage pool. Use the water pipe to connect the bucket (or pool) and the pump body filling hole. Before shutdown, use the water out of the pipe to fill the bucket with water, the next time you start, you can fill the water from the flow.

This method of filling water is easy to use. 3. Use the engine exhaust vacuum filling method to remove the muffler of small engines, installed on the special exhaust gas water diversion device, the use of engine exhaust gas discharged during the work process, pump away the air in the pump, so that the pump produces a certain degree of vacuum. When operating, start the engine first, then press the handle of the exhaust gas diversion device downward and close the exhaust gas discharge outlet, the exhaust gas from the engine will be discharged through the exhaust gas jet nozzle, which will produce a suction effect due to the high velocity and low pressure of the exhaust gas jet. When a continuous bubble of air-water mixture is seen, the pump starts to absorb water. Then close the water-filled exhaust hole on the pump body, then lift the handle, open the exhaust gas exhaust outlet, and the pump will turn into normal work.

This water filling method is only applicable to small gasoline or diesel engine powered small diameter pumps. 4. The water cabinet in front of the pump is installed in front of the pump with a cylindrical water cabinet, the top of which is a hemispherical projection. Before the first use of the water cabinet, the water cabinet will be filled with water from the water filling port, and then close the water filling port. Start the water pump operation, the instant the water pump will be pumped away from the water cabinet, the water level gradually decreases, the volume gradually increases, forming a vacuum state, resulting in suction, so that the water sucking pool water to the water cabinet, the pump continues to run, the water is constantly pumped out.