Zebang takes you to understand the siphon drainage pipe
The siphon drainage pipe was invented in the 1960s, but it was introduced in China and started to be promoted in the last ten years. The biggest difference between the siphon drainage pipe and the general gravity drainage pipe is that when the drainage is at a high flow rate, the unit drainage area of the siphon drainage pipe is nearly 80% larger than that of the gravity drainage pipe, and the siphon drainage pipe does not need to be a platform slope. Because as long as the water level exceeds the top cover line of the siphon drainage, a siphon phenomenon will occur, and nearby water sources will be "sucked" into the drainage pipe. This can improve the drainage capacity, on the other hand, the water entering the drainage pipe is Sufficient, so there is no gas doped in it, so no turbulence will occur when water is circulating. According to a senior pipeline expert from Yantai Haoyue Pipe Industry, the formation of turbulence will lead to two bad results. The first one is in There are huge sounds and vibrations in the pipeline.
Everyone has experience in home life. If it rains outside, even if the house's sound insulation is good, the drainage pipe will occasionally make a terrible grunt. This is the gravity drainage pipe. When the water volume is large enough, Because of the pressure of gravity, a large pressure will be generated at the inlet of the drainage pipe. Water cannot be pulled down, but can only be trapped in the pipe with a large amount of gas. The air bubbles will carry the water stream, which will strongly rub the pipe wall, resulting in a loud noise. At the same time, because the water flow is constantly affected by the top pressure, the flow velocity is extremely slow. This problem does not occur with the siphon drainage pipe . In fact, as long as the pipeline engineer of Yantai Haoyue Pipe Industry has promoted the siphon drainage pipe to customers, they will give up using the gravity drainage pipe because the gap is too obvious.
The structure of the siphon drainage pipe is not much different from the gravity drainage pipe. The entire drainage system is composed of rainwater buckets, rainwater suspension pipes, rainwater risers, and rainwater buried pipes. The core of the siphon drainage pipe is siphoning. The rain bucket, the siphon drain pipe, has a good rectification function. At its rated design flow, the rain bucket is in the state of submerged drainage, so there is no problem of seeping air bubbles. The siphon drainage pipe has a small depth in front of the bucket, so rainwater can easily flood the avenue. Therefore, the roof drainage system using a siphon drainage pipe is equivalent to installing a stable pump on the roof and continuously turning the top The water is pumped into the drain pipe, and the pipe discharged from the discharge pipe is in a state of full pressure flow. Because the inlet of the siphon drain pipe is small, even if there is not much rainfall, the effect of vacuum siphon will still be produced. Only when the rainfall is particularly small, because the rainwater bucket has air infiltration and the vacuum in the drain pipe is destroyed, the drainage system will From the state of siphon to the state of gravity flow, the working condition of the siphon water pipe is the same as that of the gravity drainage pipe.
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