In rainstorm season, urban waterlogging, farmland ponding and other problems occur frequently. As the core equipment of flood fighting and emergency rescue, the drainage efficiency of
Flood Control Water Pump directly relates to the effect of disaster prevention and mitigation. How to ensure that flood control water pumps can be pulled, lifted, and discharged quickly at critical moments? This article will deeply analyze efficient drainage strategies from three dimensions: equipment selection, operation skills, and system optimization.
1、 Choosing the right equipment is the foundation: core parameters and selection techniques for flood control water pumps
1. Flow and head matching
Flow rate: Calculated based on the drainage area and depth of accumulated water, for example, if 1000 cubic meters of accumulated water need to be discharged per hour, a water pump with a flow rate of ≥ 1000m ³/h should be selected.
Head: It is necessary to cover the drainage height (such as pumping from low-lying areas to drainage pipelines) and pipeline resistance, and it is recommended to reserve a 20% margin.
Example: For the drainage of a certain farmland, water needs to be lifted from a low-lying area of 0.5 meters to a drainage ditch of 3 meters, and a pump with a lift of ≥ 4 meters needs to be selected.
2. Material and Durability
Pump body material: Cast iron pumps are suitable for conventional drainage, while stainless steel pumps are more corrosion-resistant and suitable for chemical or seawater environments.
Motor protection: IP68 waterproof motor can operate completely in water, suitable for rainstorm and ponding scenarios.
3. Mobility and Automation
Portability: Mobile flood control water pumps (such as trailer type and float type) can be quickly deployed to disaster areas.
Automated control: equipped with liquid level sensors and remote monitoring systems to achieve automatic start stop and fault alarm.
2、 Efficient operation technique: Keep the water pump running at full load
1. Pipeline optimization
Reduce bends: For every additional 90 ° bend, the head loss is about 0.5 meters. It is recommended to use straight pipes or large curvature bends.
Pipe diameter matching: The outlet pipe diameter of the water pump should be ≥ the outlet diameter of the pump to avoid efficiency decline caused by "small horses pulling large trucks".
2. Inlet design
Filter cleaning: Regularly clean the inlet filter to prevent debris from blocking and causing a decrease in flow rate.
Self suction height: The self-priming height of a self-priming pump is generally ≤ 8 meters. If it exceeds this limit, a bottom valve or vacuum pump assistance needs to be installed.
3. Parallel connection of multiple pumps
Flow superposition: Two pumps of the same model connected in parallel can increase the flow by about 1.6 times (non-linear superposition).
Load balancing: Adjust the speed through a frequency converter to avoid overloading of a single pump.
3、 System level optimization: from "single machine operation" to "collaborative drainage"
1. Drainage network planning
Graded drainage: Small flow high head pumps are used in high terrain areas, while large flow low head pumps are used in low-lying areas.
Emergency channel: Reserve a backup drainage outlet to prevent the main channel from being blocked and causing the entire system to collapse.
2. Intelligent monitoring and early warning
Internet of Things technology: Install water level sensors and flow meters to monitor drainage efficiency in real-time.
AI prediction: predict rainstorm intensity in combination with meteorological data, and adjust pump operation parameters in advance.
3. Energy management
Dual power supply: mains power+generator set dual backup to ensure continuous drainage in case of power failure in rainstorm.
Energy saving mode: Variable frequency operation is adopted in non emergency situations to reduce energy consumption.
4、 Case analysis: Practical experience of flood control pumping station in a certain city
Scenario: A coastal city faces the risk of seawater backflow during typhoon season.
Solution:
Deploy 10 large flow submersible pumps (flow rate of 2000m ³/h, head of 12 meters) and operate in parallel.
Optimize the inlet pipeline, reduce the number of bends, and increase flow by 20%.
Introducing an intelligent monitoring system, the fault response time has been reduced to within 5 minutes.
Effect: drainage efficiency increased by 35% during rainstorm, and no waterlogging occurred.
conclusion
The efficient drainage of flood control
pumps is not only a reflection of equipment performance, but also a result of systematic management. Only through accurate selection, scientific operation and intelligent optimization can we "save the day" when rainstorm comes. It is recommended that users customize drainage plans according to their actual needs and conduct regular equipment maintenance and drills to ensure that the chain does not fall off during critical moments.
