A spiral single blade cyclone for building drainage

Abstract

The invention discloses a helical single-blade cyclone for building drainage. The helical single-blade cyclone for building drainage comprises a tee joint body, wherein the upper interface of a main pipe of the tee joint body is connected with an upper connecting pipe section for connecting an upper stand pipe, the lower interface of the main pipe of the tee joint body is connected with a lower connecting pipe section for connecting a lower stand pipe, a helical guide blade is arranged on the inner wall of the lower connecting pipe section, and an inwards-flanging arc guide edge is arranged on the inner wall of the bottom of the upper connecting pipe section. According to the helical single-blade cyclone for building drainage, good wall-attached flows can be formed during large displacement through the cooperation of the inwards-flanging arc guide edge and the helical guide blade, the phenomenon of hydraulic jumping and the phenomenon that the blade is directly flushed are avoided, good ventilating effect is achieved, pressure fluctuation can be reduced and the water drainage capability is improved; and the single helical guide blade can prevent multi-blade multi-flow convergence, the water flow falling speed is lowered, the noise is lowered, the odor of the toilet is avoided and the drainage capability is improved.

Description

technical field [0001] The invention relates to the field of building drainage pipes, in particular to a spiral single-blade cyclone for building drainage. Background technique [0002] The cyclone is a new type of special accessory in the special single-standpipe drainage system. Compared with other special single-standpipe systems, the single-standpipe drainage system using the cyclone has the advantages of large flow and small space occupation. see figure 1 As shown, the upper riser interface of the existing swirler 10 is generally a cylindrical short pipe 11 arranged in the center, and the lower body swirl body 12 of the swirler 10 is provided with a plurality of helical blades 13. The swirler with this structure 10 has the following defects: 1. When used in high-rise and ultra-high-rise buildings, when large-displacement drainage is performed, since the upper riser interface is at the center, the large water flows downward and is colliding with multiple spirals of the ...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a method to change the shape of the falling water flow in the drainage standpipe and reduce the pressure in the pipe when draining, aiming at the shortcomings and defects of the existing cyclone, which are prone to pressure fluctuations, damage to the water seal, odor return from the floor drain, and increased noise. Spiral single-blade cyclone for building drainage for purposes such as fluctuations, reducing falling water velocity, avoiding water seal damage and toilet odor, reducing drainage noise, and improving drainage capacity.

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