What should we do when heavy rain becomes the killer of urban people?
With the increase of the urban population, the speed of urban construction is much faster than the speed of urban drainage network reconstruction. This has made it difficult for the city to quickly discharge water under emergencies such as heavy rainstorms in the city. This is also the reason why many cities are flooded by the rainy season.
The municipal department is also trying many ways to improve urban drainage. For example, increase the drainage pump station, increase the diameter of the drainage pipe, and so on.
The role of the drainage pump station in the entire urban drainage network is very important. It will increase the speed of drainage and prevent the accumulation of water in urban roads. The level controller that is used in the pump station is a mechanical float level controller. The advantages of the float are simple installation and easy control. The disadvantage is the short life, there will be failure of the contact does not pull. Various pumping stations are still widely used now.
With the development of technology, input level gauges have been widely used in drainage pumping stations. The advantage of the input level gauge is that it outputs a continuous analog signal and can monitor the level change in real time. The choice of Kai pump point can be changed freely, which can better control the liquid level and speed up the urban drainage. The disadvantage is that the input level gauge is easily blocked by the sludge and the use of the product is limited.
In recent years, ultrasonic level gauges have also been widely used in the level control of urban drainage pump stations. In previous years, foreign brands have always occupied these fields. With the breakthrough in ultrasonic level gauge technology of some domestic companies, stable product quality, and good after-sales service, domestic brands of ultrasonic level gauges have also been accepted by municipal administrations of various cities, and are widely applied to urban drainage. aspect. The advantage of the ultrasonic liquid level meter is that it is very convenient to install, and the liquid level monitoring is clear at a glance. It does not come in contact with the discharged liquid, and corrosion does not occur because of the change of the acidity and alkalinity of the liquid. The disadvantage is that there is a blind zone. When the speed of rapid increase of the liquid is greater than the speed of detection by the ultrasonic level gauge, once the liquid enters the blind zone, the risk of the current liquid level cannot be detected. Therefore, when installing, you should consider the problem of blind spots and avoid this. For example, if the installation height is increased and the blind spot is above the overflow port, this situation can be effectively avoided.
In short, the level gauge plays a very important role in the city's complex water drainage projects.