Small sump pump merchants indicate that water pumps play an important role in daily life, enabling the pump to suck low-level liquid or water into the pump cavity at a high place and throw the liquid out at high speed through the impeller to reach the purpose of transporting and lifting the liquid. . If the product is sometimes unqualified or the service life is too long, the self-priming can be reduced, and it will not achieve the intent we need. Therefore, small pump manufacturers believe that understanding and mastering the improvement and increasing the self-priming ability of self-priming pumps seems Particularly important.

The following introduction of small pumps will introduce ways to increase the service life of pumps and improve self-priming ability.

1. A vacuum is set on the suction pipe of the water pump. Before the pump is started, the vacuum pump is started first, so that the suction pipe of the water pump is filled with water first to ensure that the pump starts automatically and quickly. This type of water absorption requires a complete automatic control system to ensure normal operation.

2. Reduce the bends, drop height and horizontal interval of the inlet pipe.

3. Set up the suction tank before the pump. Small water pump manufacturers need to install a suction tank on the suction pipe of the pump. Before the pump is operated, the tank should be filled with water manually. After the operation is stopped, the height of the suction tank is higher than the water surface in the pipe. The water level in the pool is lower than the water level in the tank, and the water in the tank will not flow back into the pool. Therefore, a certain amount of water can be stored in the suction tank, and because of the height of the outlet pipe of the suction tank (ie the suction pipe of the water pump) It is lower than the height of the water surface in the pipe, so it can ensure that the suction pipe of the water pump is full of water. When the pump is running again, the water in the water tank is pumped away by the water pump, and negative pressure appears in the tank. The water in the pool is under the effect of atmospheric pressure. Add to the suction tank, through the suction tank in the pool.

4. Install a suction bottom valve at the end of the suction pipe. The suction bottom valve is actually a check valve, which ensures that the water flow can only enter the suction pipe from the pool and cannot flow back. Therefore, if the suction pipe is full of water, although the pump axis is higher than the working water level of the pool, it is due to suction The effect of the bottom valve is that the water in the suction pipe will not flow into the pool, and the suction pipe can be filled with water all the time, ensuring that the water pump can be started automatically and quickly.