Non-blocking sewage pumps and improves the self-priming capacity

The non-clogging self priming trash pump has a certain self-priming ability, which enables the water pump to pump the liquid at a high level by sucking the low liquid liquid or water into the pump chamber through the impeller to reach the purpose of conveying and promoting the liquid. Non-blocking self priming sewage pump sometimes has unqualified products or long service life, and the self-priming capacity is reduced, which will not achieve the purpose we need. However, the non-blocking sewage pump can be divided into external mixed type due to the difference in the way of self-priming. The utility model relates to a plugging sewage pump, an internal mixing type non-blocking sewage pump and a vacuum pumping type non-blocking sewage pump which is powered by the pump itself and the like.

The following methods are introduced to improve the service life of the non-blocking sewage pump and improve the self-priming capacity:

The first method is also the simplest method: the self-priming wet prime pump is provided with a vacuum pump on the water suction pipe of the water pump. Before the water pump starts, the vacuum pump is started first, so that the water suction pipe of the water pump is first filled with water to ensure the automatic and rapid start of the water pump. This type of water absorption requires a sophisticated automatic control system to ensure proper operation.

The second method is also relatively simple compared to the following: the non-blocking sewage pump reduces the curve of the inlet pipe, the height of the drop and the horizontal interval.

The third method is a bit cumbersome, but it is also very useful: the engine driven trash pump sets the pump front suction tank. In this way, a water absorption tank needs to be arranged on the water suction pipe of the water pump. Before the first operation of the water pump, the water in the tank should be manually filled with water. After the first operation, the height of the water inlet pipe of the water absorption tank is higher than the water surface height of the water pipe, although The water level in the pool is lower than the height of the water surface in the tank, and the water in the tank will not flow backwards and enter the pool. Therefore, the water tank can store a certain amount of water, and the water outlet of the water tank (ie, the water pump of the water pump) It is lower than the water level in the pipe, so it can ensure that the water suction pipe of the water pump is covered with water. When the water pump is running again, the water in the water tank is pumped away by the water pump, and the negative pressure is generated in the tank. The water in the water pool is under the action of atmospheric pressure. Add to the water tank and pass through the water tank.

In the last method, a suction bottom valve is installed at the end of the suction pipe of the self-priming sewage pump. 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 covered with water, although the water pump axis elevation is higher than the working water level of the pool, it is because of the water absorption. The function of the bottom valve, the water in the suction pipe will not flow into the pool, so that the water pipe can be filled with water all the time, ensuring that the 6 inch trash pump can start automatically and quickly.