A special swirl single riser system

Abstract

The invention discloses a special swirl flow single riser system, comprising a swirl tee, an upper general drainage pipe, a lower general drainage pipe and a side inlet pipe, the swirl tee includes a first water inlet pipe and a connection with the first water inlet pipe. a second water inlet pipe that is connected to the side walls of the water inlet pipe and communicated internally; the upper part of the first water inlet pipe is communicated with the upper general drainage pipe, the lower part of the first water inlet pipe is communicated with the lower general drainage pipe, and the second water inlet pipe It is communicated with the side water inlet pipe; the inner edge of the second water inlet pipe is tangent to the inner edge of the first water inlet pipe; the connecting part of the second water inlet pipe and the first water inlet pipe is an enlarged pipe wall cavity. In the single standpipe system of the present invention, when the sewage enters the first water inlet pipe along the second water inlet pipe, the setting of the pipe wall cavity can increase the curvature radius of the swirling flow of the sewage against the wall, thereby effectively reducing the discharge rate of the sewage and ensuring the sewage It can swirl against the wall, avoid the formation of water plugs, and reduce the generation of drainage noise.

Description

technical field [0001] The invention relates to the field of building drainage, in particular to a special swirl single riser system. Background technique [0002] With the development of technology, the single standpipe has become one of the important pipe fittings of the sewage discharge system in the construction area. Its main advantages are large pipeline flow, convenient installation and use, and less space occupation. However, the internal flow state of the single standpipe currently on the market is chaotic. The specific performance is that when a large amount of sewage enters the vertical standpipe along the horizontal branch pipe, due to the small curvature radius of the pipe, the sewage will directly flow from the vertical standpipe. The middle part of the drain is discharged, not only the drainage noise is loud, but also it is easy to cause water plugging. Contents of the invention [0003] In order to overcome the above-mentioned defects in the prior art, the...

AI Technical Summary

Problems solved by technology

However, the internal flow state of the single standpipe currently on the market is chaotic. The specific performance is that when a large amount of sewage enters the vertical standpipe along the horizontal branch pipe, due to the small curvature radius of the pipe, the sewage will directly flow from the vertical standpipe. The middle part of the drain is discharged, not only the drainage noise is loud, but also it is easy to cause water plugging

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