What is siphon drainage?

Siphon drainage is caused by the difference of attraction and potential energy between liquid molecules. Is to use the pressure difference of the water column, the water rises and then flows to a lower place. Because the water surface of the nozzle bears different atmospheric pressures, the water will flow from the high-pressure side to the low-pressure side until the atmospheric pressures on both sides are equal and the water surface in the container becomes the same height, and the water will stop flowing.

Principle:

Siphon is not entirely produced at atmospheric pressure, but can also be produced in vacuum. The force that makes a liquid rise is the cohesion of molecules between liquids. When siphon happens, the liquid will continue to flow in one direction because there is more liquid flowing out of the pipeline than in the pipeline, and the gravity on both sides is unbalanced. When the liquid flows into the pipe, the higher it flows, the lower the pressure.

The technical principle of siphon rainwater drainage system is to use the water head formed by the height of the building and rely on the special rainwater bucket design to realize the separation of gas and water, and finally reach the full flow state with the water pipe. When the water in the pipeline is in a state of pressure flow, the siphon effect occurs. During the whole precipitation process, due to the continuous siphon effect, the whole system can discharge rainwater at an amazing speed and quickly discharge rainwater from the roof to the ground.

Advantages:

1. The rainwater bucket is flexibly arranged on the roof, which can better adapt to the artistic modeling of modern buildings and easily meet the rainwater discharge of irregular roofs.

2. The single bucket has a large displacement and few openings in the roof, which reduces the probability of roof leakage and reduces the waterproof pressure of the roof.

3. The number of downpipes is small and the diameter is small, which meets the aesthetic requirements of modern buildings and the rainwater drainage of large-scale landmark buildings, various long-span roofs and high-rise buildings.