Drainage Problems Of Water Pumps And Intelligent Water Pump Controllers

The biggest impact on the rainwater drainage system is the rainfall, and its main parameters are:

1. Rainfall. It refers to the absolute amount of rainwater falling on the ground in a certain period of time, and the unit is mm.

2. The duration of rainfall. It refers to the period of continuous rainfall, which can be the whole time of a rainfall or a certain period of time.

3. Rainfall intensity. It refers to the average rainfall in a rainfall duration. It means the amount of rainfall per unit time within a certain rainfall duration.

4. Rainfall area and catchment area. Rainfall area refers to the area covered by rainfall, and catchment area refers to the area where rainwater catches rainwater.

5. The frequency and return period of rainfall intensity. The frequency of rainfall intensity refers to the number of occurrences of rainfall intensity exceeding or equal to its value within a certain period of time (commonly used years). The return period of rainfall intensity refers to the occurrence of rainfall intensity exceeding or equal to The average interval time between occurrences of rainfall of a certain rainfall intensity. The return period and frequency are reciprocals of each other.

6. The runoff coefficient of the intelligent water pump controller. On-surface runoff is formed when rainwater falls to the ground. In the process of ground flow, due to infiltration into the ground, plant absorption, depression interception, etc. Finally, only a part of it flows into the pipe network, and the ratio of the runoff flowing into the rainwater pipe on the catchment area of the rainwater pipe network to the rainfall on the area is called the runoff coefficient.