Spill-proof single riser drainage system

Abstract

The invention discloses an overflow-proof single-standpipe drainage system, which comprises a drainage standpipe, a top-extending ventilation cap, a drainage tee assembly, a first-floor discharge elbow and a first-floor horizontal discharge pipe; Each is equipped with a drainage tee assembly, and the drainage tee assembly on each floor is connected to the horizontal access pipe of the corresponding floor; the drainage tee assembly is composed of a drainage tee and a diaphragm inner sleeve, and the upper end of the diaphragm inner sleeve is provided with an inflow The lower end is provided with an outlet, the outlet is partially fixedly connected to the peripheral part of the lower interface of the drainage tee, the inflow is fixedly connected to the peripheral part of the upper interface of the drainage tee, and the horizontal interface on the drainage tee is connected to the horizontal access tube connection. The invention avoids the violent confluence and collision and splashing and diffusion of two streams of water, improves the hydraulic conditions, eliminates positive pressure backflow and negative pressure suction, is conducive to maintaining a stable flow state and reducing the impact noise of water flow, and helps to improve vertical pressure. The drainage capacity of the pipe and the mute level of the indoor environment.

Description

technical field [0001] The invention relates to the technical field of domestic drainage systems for high-rise and multi-storey buildings, in particular to an overflow-proof single riser drainage system. Background technique [0002] Building a domestic drainage system is a basic requirement for maintaining a healthy environment for people's normal life and work. With social development, there are more and more high-rise buildings in cities, and the sewage flow of drainage risers is also increasing. Previously, multi-storey buildings used The ordinary single riser drainage system can no longer meet the requirements of high-rise buildings, and relevant regulations also limit the use of ordinary single riser drainage systems in high-rise buildings. With the increase of the sewage flow in the standpipe and the horizontal pipe, the intersection and collision of the vertical water flow and the horizontal water flow at the tee of the drainage riser pipe become more and more intens...

AI Technical Summary

Problems solved by technology

[0002] Building a domestic drainage system is a basic requirement for maintaining a healthy environment for people's normal life and work. With social development, there are more and more high-rise buildings in cities, and the sewage flow of drainage risers is also increasing. Previously, multi-storey buildings used The ordinary single riser drainage system can no longer meet the requirements of high-rise buildings, and the relevant regulations also limit the use of ordinary single riser drainage systems in high-rise buildings

With the increase of the sewage flow in the standpipe and the horizontal pipe, the intersection and collision of the vertical water flow and the horizontal water flow at the tee of the drainage riser pipe become more and more intense, which in turn causes a destructive mutation of the local pressure in the pipe, and even a water plug flow. The water seal state of the water tank is destroyed, positive pressure reverse overflow or negative pressure suction occurs, causing dirty air to enter the room to pollute the environment, and even the sewage splashed back at the mouth of the sanitary appliance will bring unexpected personal injury

So far, high-rise buildings generally use ordinary double riser drainage system, Suweito special single riser drainage system or cyclone single riser drainage system to replace ordinary single riser drainage system, but ordinary double riser drainage needs more than 2 times The pipe material and occupy a large indoor space in the bathroom, the drainage capacity of Suweito special single pipe and cyclone single pipe is relatively small and the appearance is not beautiful, from the ordinary double riser drainage system with special ventilation riser, the development Judging from the Suweito special single standpipe system with air-water isolation channel, and then the technological development of the hydrocyclone single standpipe drainage system, they all aim to improve the drainage capacity of the standpipe, but from the current application situation in the construction market Look, high-rise buildings use more common double riser drainage systems, followed by Suweito special single riser drainage systems, and cyclone single riser drainage systems are relatively rare. It can be seen that technological development has not As a result of market upgrades, the comprehensive cost performance of economy and reliability is still the main factor in the market choice. Perhaps the technological progress has not yet reached the perfect unity of cost performance, and the above-mentioned single riser system has not been able to obtain a latecomer competitive advantage in the high-rise building market.

The pollution of indoor drainage system due to excessive drainage flow or poor congestion in a short period of time occurs from time to time. The public generally believes that such pollution accidents are the result of improper use, not caused by the structural defects of the drainage system itself. This view reflects a certain objective reality. After all, the existing indoor drainage systems do not have the function of sewage overflow prevention. They did not realize that the structural defects of the system itself are the main cause of the above-mentioned pollution accidents. Habitual views often blur the essence of the problem. The understanding and cover-up of the necessity of solving the problem make it impossible to respond to the urgent situation of sudden sewage overflow in time. From another point of view, the structural defects that have always existed in the existing indoor drainage system have not been objectively recognized due to customary views , not to realize that this is a health and safety issue that should be addressed

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