The weipike siphon drainage system is based on the "Bernoulli" equation and after rigorous calculations, it relies on a specially designed siphon rainwater bucket to achieve gas-water separation. Wipak siphon rainwater bucket realizes the separation of gas and water, and when the water depth in front of the bucket is very shallow, a full pipe flow is formed in the pipeline. Utilizing the potential energy generated by the height difference of rainwater flowing from the roof to the ground, a partial vacuum is formed in the rainwater pipe system, thereby forming a siphon effect, and the rainwater is discharged to the outdoors at a very fast speed.
Schematic diagram of the process of Wipak siphon formation
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At the beginning of rainfall, the water flow in the pipeline is small and cannot reach the full pipe state, which is gravity flow.
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As the rainfall increases, the water level in front of the bucket increases, and the system flow pattern gradually transitions to plug flow and foam flow, and the siphon full pipe pressure flow pattern appears intermittently.
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The rainfall is further increased, the water level in front of the bucket is stable, and the air intake of the system is reduced, thus entering a stable siphon full pipe pressure flow state.
In the case of the same displacement, the siphon drainage system requires a smaller water depth in front of the bucket than the gravity flow system. This is very beneficial to the building and structural design of the roof. The pipe diameter used by the siphon system is not only smaller than gravity flow, but also "less" than gravity flow. The system shown in Figure 4, that is, one horizontal pipe and one stand pipe, can be connected to more than ten rainwater buckets, while the gravity flow system requires multiple stand pipes.
The horizontal pipe of the siphon system can be installed horizontally, and the horizontal pipe of the gravity flow system must have a slope of not less than 0.005, which will lower the end of the horizontal pipe, thereby affecting the use of space or affecting the processing of the building structure. Because the number of risers of the siphon system is small, they can be laid in stairwells, columns, etc., without occupying more space. The horizontal pipes can also be laid in non-sensitive public corridors, which can give building design a favorable condition.
System hydraulic design
● The Weipike siphon drainage design software can automatically generate system diagrams, calculation sheets and material lists to provide customers with the most scientific, safe and economical siphon drainage design solutions.
● The Weipike siphon drainage calculation software system fully complies with the requirements of the "Technical Regulations for Siphon Roof Rainwater Drainage System". It can automatically generate detailed and accurate system diagrams and the most perfect pipe diameter matching according to the plan, and provide detailed system hydraulic calculations.
Professional software and updated hydraulic calculations close to actual working conditions
● What we hope to achieve through calculation is the siphon full pipe flow.
● In actual conditions, even if the pipe is full of water, air will still be incorporated into it. Wipak’s unique air-water mixing degree calculation will make the calculation result very similar to the actual hydraulic conditions.
● Accurate calculation can achieve stable and controllable water depth in front of the bucket, so that the system can effectively control the water load of the working roof under the undecided siphon state.
● Professional calculation software makes calculations faster.
System Assurance
In order to ensure the safety and reliability of the siphon roof rainwater drainage collection system, we continue to provide product research and development capabilities. The design is accurate and reasonable, the installation level of the system, the completeness of the after-sales service system and many other conditions. After the system is running, we will provide technical consulting services at any time according to the user's request, and respond to the user's on-site service request.
