Methods for improving the reliability of water pump suction
The methods to improve the reliability of water pump water absorption mainly include the following:
1. Self-priming water absorption method
Principle: When the elevation of the water pump axis is lower than the working water level of the pool, the working water level of the pool is higher than the elevation of the water pump axis, so that the water suction pipe is always full of water, so that the water pump can be put into operation quickly when it starts, eliminating the time for filling and exhausting, and improving the automation and reliability of water pump startup.
Applicable scenarios: Commonly used in buildings with basements, the water pump room is set in the basement, and the pool is set next to the basement water pump room or outdoors.
2. Install the water suction bottom valve
Principle: The water suction bottom valve is actually a check valve, which ensures that water can only flow into the water suction pipe from the pool and cannot flow back. In this way, even if the elevation of the water pump axis is higher than the working water level of the pool, due to the action of the water suction bottom valve, the water in the water suction pipe will not flow into the pool, ensuring that there is always water in the water suction pipe.
Precautions: The reliability of this method is affected by the quality of the water suction bottom valve. If it is not closed tightly or leaks, it will cause water loss in the water suction pipe, so it needs regular inspection and maintenance.
3. Use other water sources to replenish water
Principle: On the basis of the first water absorption method, add a pipe connected to the outdoor municipal water supply pipe or other external water source to supply water to the water pump suction pipe to replenish the water that may be leaked by the bottom valve.
Note: The reliability of this method is affected by the outdoor water source. If the outdoor water source is out of water for a long time, the water in the suction pipe may leak out, resulting in the need for manual water filling when the water pump is started.
4. Use roof water tank to replenish water
Principle: For buildings with roof water tanks, roof water tanks can be used to replenish water in the water pump suction pipe. This method is not affected by the outage of outdoor water sources and has high reliability.
Applicable scenarios: Applicable to buildings with roof water tanks. For buildings without roof water tanks, a small water tank can also be set up in the pump room for water replenishment.
5. Set up a suction tank before the pump
Principle: Keep water in the suction pipe by setting up a suction tank before the pump. This water absorption method is safe and reliable, but it requires increased equipment investment and occupies a certain space in the pump room.
6. Install a vacuum pump on the water pump suction pipe
Principle: Before starting the water pump, start the vacuum pump first to fill the water in the water pump suction pipe, so as to ensure that the water pump can start automatically and quickly.
Note: This water suction method requires a complete automatic control system to ensure that the vacuum pump starts before the water pump, and the cost is relatively high, and the reliability is affected by the automatic control system.
7. Other maintenance measures
Regular inspection and maintenance: Regularly inspect and maintain the water pump and its water suction system to ensure the normal operation and sealing of each component.
Optimize system design: Fully consider the water suction reliability of the water pump during the system design stage, and reasonably arrange the location and height difference of the water pump room and the water pool.
