CN115538537A

CN115538537A - Double-riser drainage system

Info

Publication number: CN115538537A
Application number: CN202211416531.XA
Authority: CN
Inventors: 殷志
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-11-13
Filing date: 2022-11-13
Publication date: 2022-12-30

Abstract

The invention discloses a double-riser drainage system, which comprises double risers, a first connecting pipe and a second connecting pipe, wherein the double risers are arranged on the double risers; the double vertical pipes comprise a first vertical pipe, a second vertical pipe and a communicating pipe, the communicating pipe is connected with the first vertical pipe and the second vertical pipe, the first connecting pipe is connected with the first vertical pipe to form a first channel, the second connecting pipe is connected with the second vertical pipe to form a second channel, a first bypass pipe used for connecting a drain pipe is arranged on the first connecting pipe, and a second bypass pipe used for connecting the drain pipe is arranged on the second connecting pipe. The double-riser drainage system not only enables the first channel and the second channel to alternately maintain gas-water mixed flow, does not have positive and negative pressure difference in the first channel and the second channel, does not have water seal fault, does not cause sewage and wastewater overflow, but also enables sewage and wastewater in a toilet to flow, and enables the flow rate of high-rise drainage to be larger and the noise to be smaller.

Description

Double-riser drainage system

Technical Field

The invention relates to the field of building drainage, in particular to a double-riser drainage system.

Background

The basic requirements of the residential drainage system are smooth water flow, small air pressure fluctuation and no damage to the water seal of the trap. Before the 70 s, the houses in China mainly comprise low-rise and multi-rise houses, and a drainage system with top-extended ventilation (namely a single-riser drainage system) is adopted to discharge positive pressure and supply air to reduce negative pressure so as to keep airflow in a pipe close to atmospheric pressure, so that the method is economical and applicable. At present, the houses in China are mainly high-rise houses, some cities even have a plurality of super high-rise houses, and the water passing capacity of a single-riser drainage system is low, so that the requirements of the high-rise houses cannot be met. In order to improve the water passing capacity of the drainage vertical pipe, a double-vertical-pipe drainage system is developed in the engineering to improve the water passing capacity of the drainage vertical pipe.

Basic principle of drainage system: when sewage and wastewater flow downwards in the vertical drainage pipe, the sewage and wastewater do vortex motion downwards along the inner wall of the pipeline, and an air channel is generated at the central part of the vertical drainage pipe to form gas-water mixed flow. Along with the increase of the height of the vertical drainage pipe, the descending speed of the sewage and the wastewater in the vertical drainage pipe is faster and faster, and the air resistance of the descending sewage and the wastewater is larger and larger, so that the air cross section at the center of the pipeline is smaller and smaller, and even disappears. At the moment, water flow can form a complete cross section seal in the vertical pipe, so that positive and negative pressure difference is generated in the vertical pipe, siphoning or airflow reversing occurs, water seal fails, and even sewage and waste water overflows from floor drains and sanitary wares.

The double-riser drainage system comprises the following components: the device is provided with 2 vertical pipes, wherein 1 vertical pipe is a drainage vertical pipe, 1 vertical pipe is a ventilation vertical pipe, and the drainage vertical pipe is communicated with the ventilation vertical pipe through an H pipe. The working principle of the double-riser drainage system is as follows: through the action of the ventilation vertical pipe and the H pipe, the vertical drainage pipe can be ensured to always maintain gas-water mixed flow, positive and negative pressure difference cannot occur in the vertical drainage pipe, water seal faults cannot occur, and sewage and wastewater overflow cannot occur. Currently, dual riser drainage systems are most widely used in projects.

As the residential drainage comprises sewage and waste water, the sewage refers to domestic sewage discharged by a wash basin or a floor drain in a toilet, and the waste water refers to excrement water discharged by a toilet bowl in the toilet. The technical difficulty and complexity of waste water treatment are relatively high, and the cost is high. Compared with wastewater treatment, the technical difficulty of domestic sewage treatment is relatively small, and because pollutants in domestic sewage are relatively stable and single, the technical requirement is not high, the cost is low, the sewage and the wastewater are urgently required to be divided, and the treatment cost is reduced.

Disclosure of Invention

In view of the above, the present invention provides a dual-riser drainage system, which not only enables the first channel and the second channel to alternately maintain a gas-water mixed flow, and the first channel and the second channel do not have a positive-negative pressure difference, a water seal failure, and sewage and wastewater overflow, but also enables sewage and wastewater in a toilet to be split, so that the drainage flow of a high-rise building is larger, and the noise is smaller.

In one aspect, the invention provides a dual riser drainage system comprising a dual riser, a first connecting pipe, a second connecting pipe; the double-vertical pipe comprises a first vertical pipe, a second vertical pipe and a communicating pipe, the communicating pipe is connected with the first vertical pipe and the second vertical pipe, a first connecting pipe is connected with the first vertical pipe to form a first channel, a second connecting pipe is connected with the second vertical pipe to form a second channel, a first bypass pipe used for connecting a drain pipe is arranged on the first connecting pipe, and a second bypass pipe used for connecting the drain pipe is arranged on the second connecting pipe.

In order to prevent the water drainage of the first channel from being communicated with the water drainage of the second channel, in a further technical scheme, a first opening is formed at the joint of the communicating pipe and the first vertical pipe, a second opening is formed at the joint of the communicating pipe and the second vertical pipe, and the top end channel of the communicating pipe is higher than the positions of the first opening and the second opening.

In a further technical scheme, the communicating pipe is of a dome-shaped structure.

In a further technical scheme, the first bypass pipe is connected with a toilet wash basin or a floor drain through a sewage drain pipe, and the second bypass pipe is connected with a toilet bowl through a wastewater drain pipe.

In a further technical scheme, a first rotational flow plate is arranged on the inner wall of the first connecting pipe, and a second rotational flow plate is arranged on the inner wall of the second connecting pipe.

Compared with the prior art, the double-riser drainage system has the beneficial effects that:

1. because the first channel and the second channel can drain water and are communicated with each other, the first channel and the second channel alternately maintain gas-water mixed flow, positive and negative pressure difference cannot occur in the first channel and the second channel, water seal faults cannot occur, and sewage and wastewater overflow cannot occur. Both can drain water, and make high-rise drainage flow bigger, the noise is littleer. When the first channel is drained, the second channel can be exhausted, when the second channel is drained, the first channel is exhausted, and the first channel and the second channel are alternately drained and exhausted. The problems of small high-rise drainage flow, high noise and the like of a drainage vertical pipe and an exhaust vertical pipe structure of a traditional double-vertical-pipe drainage system are solved.

2. If the first by-pass pipe is connected with a toilet wash basin or a floor drain through a sewage drain pipe, the second by-pass pipe is connected with a toilet seat through a sewage drain pipe. Make bathroom sewage and waste water reposition of redundant personnel, bathroom blowdown water and waste water drainage have time difference, and during the first passageway blowdown water, the second passageway exhausts, and when the second passageway is arranged waste water, the first passageway is carminative, and the drainage is carminative in turn to first passageway and second passageway, makes high-rise drainage flow bigger, the noise is littleer.

3. Be provided with first whirl board on the inner wall of first connecting pipe, be provided with the second whirl board on the inner wall of second connecting pipe, make first passageway and second passageway realize the whirl, make high-rise water discharge flow bigger, the noise is littleer.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic diagram of a dual riser drainage system according to the present invention.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1, the present invention provides a dual riser drainage system, comprising a dual riser 3, a first connection pipe 1, a second connection pipe 2; the double-stand pipe 1 comprises a first stand pipe 30, a second stand pipe 31 and a communicating pipe 32, the communicating pipe 32 is connected with the first stand pipe 30 and the second stand pipe 31, the first connecting pipe 1 is connected with the first stand pipe 30 to form a first channel, the second connecting pipe 2 is connected with the second stand pipe 31 to form a second channel, a first bypass pipe 10 used for connecting a sewage drain pipe is arranged on the first connecting pipe 1, and a second bypass pipe 20 used for connecting a waste water drain pipe is arranged on the second connecting pipe 2. In a high-rise residential building, each floor is provided with a first connecting pipe 1 and a second connecting pipe 2, double vertical pipes 3 are arranged between the upper floor and the lower floor, and the double vertical pipes 3, the first connecting pipes 1 and the second connecting pipes 2 are configured according to the number of floors. The first and second passageways extend all the way to the roof.

The first by-pass pipe 1 is connected with a toilet wash basin or a floor drain through a sewage drain pipe, and the second by-pass pipe 2 is connected with a toilet seat through a waste water drain pipe. The sewage and the waste water in the toilet are divided, and the post-treatment cost of the sewage and the waste water is reduced. Because the time difference exists between bathroom blowdown and the waste water drainage, when the first passageway blowdown water, the second passageway exhausts, and when the second passageway waste water drainage, the first passageway exhausts, and first passageway and second passageway drainage exhaust in turn makes high-rise drainage flow bigger, the noise is littleer.

In a further technical scheme, be provided with first whirl board 11 on the inner wall of first connecting pipe 1, be provided with second whirl board 21 on the inner wall of second connecting pipe 2, make first passageway and second passageway realize the whirl, make high-rise drainage flow bigger, the noise is littleer.

In order to prevent the water discharge of the first channel from communicating with the water discharge of the second channel, in a further technical scheme, a first opening a is formed at the joint of the communication pipe 32 and the first stand pipe 30, a second opening B is formed at the joint of the communication pipe 32 and the second stand pipe 31, and a top channel C of the communication pipe 32 is higher than the positions of the first opening a and the second opening B. The communication pipe 32 has a dome-shaped structure. The communication pipe 32 may have other shapes. Since the top end passage C of the communication pipe 32 is higher than the positions of the first opening a and the second opening B, when the first passage is drained, water of the first passage does not flow into the second passage through the communication pipe 32; similarly, when the second path is drained, the water of the second path does not flow into the first path through the communication pipe 32; the communication pipe 32 is used only for aeration and not for drainage.

Because the first channel and the second channel can drain water, and the first channel and the second channel are communicated through the double vertical pipes 3, the first channel and the second channel alternately maintain gas-water mixed flow, positive and negative pressure difference cannot occur in the first channel and the second channel, water seal failure cannot occur, and sewage and wastewater overflow cannot occur. Both can drain water, and make high-rise drainage flow bigger, the noise is littleer. When the first channel is drained, the second channel can be exhausted, when the second channel is drained, the first channel is exhausted, and the first channel and the second channel are alternately drained and exhausted. The problems of small high-rise drainage flow, high noise and the like of a drainage vertical pipe and an exhaust vertical pipe structure of a traditional double-vertical-pipe drainage system are solved.

The techniques not described above are common general knowledge of the skilled person. The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A double-riser drainage system is characterized by comprising double risers (3), a first connecting pipe (1) and a second connecting pipe (2); the double-stand pipe (1) comprises a first stand pipe (30), a second stand pipe (31) and a communicating pipe (32), the communicating pipe (32) is connected with the first stand pipe (30) and the second stand pipe (31), the first connecting pipe (1) is connected with the first stand pipe (30) to form a first channel, the second connecting pipe (2) is connected with the second stand pipe (31) to form a second channel, a first bypass pipe (10) used for connecting a drain pipe is arranged on the first connecting pipe (1), and a second bypass pipe (20) used for connecting the drain pipe is arranged on the second connecting pipe (2).

2. The dual riser drainage system according to claim 1, wherein a connection of the connection pipe (32) with the first riser (30) forms a first opening (a), a connection of the connection pipe (32) with the second riser (31) forms a second opening (B), and a top end passage (C) of the connection pipe (32) is higher than the first opening (a) and the second opening (B).

3. The dual riser drainage system of claim 2 wherein the communication pipe (32) is a dome-shaped structure.

4. A double riser drainage system according to claim 1, characterised in that the first by-pass pipe (1) is connected to a toilet sink or floor drain via a sewage drain pipe and the second by-pass pipe (2) is connected to a toilet bowl via a waste drain pipe.

5. The double riser drainage system according to any of claims 1-4, wherein a first swirl plate (11) is arranged on the inner wall of the first connecting pipe (1) and a second swirl plate (21) is arranged on the inner wall of the second connecting pipe (2).