CN216075369U

CN216075369U - Double-riser drainage system

Info

Publication number: CN216075369U
Application number: CN202121849824.8U
Authority: CN
Inventors: 殷志
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2022-03-18
Anticipated expiration: 2031-08-09

Abstract

The utility model discloses a double-riser drainage system, wherein a three-way pipe, an H communicating pipe and an exhaust pipe for discharging sewage and wastewater in a toilet are arranged on each floor, the three-way pipe is connected with one side of the H communicating pipe through a flange to form a drainage channel, the exhaust pipe is connected with the other side of the H communicating pipe through a flange to form an exhaust channel, and air in the drainage channel is discharged to the exhaust channel through the H communicating pipe. The utility model can ensure that the drainage channel always maintains the gas-water mixed flow, the positive and negative pressure difference in the drainage channel can not occur, the water seal fault can not occur, and the sewage and the waste water can not overflow.

Description

Double-riser drainage system

Technical Field

The utility model relates to the field of drainage of the same floor of a building, 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 water seal. 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, the water flowing capacity of a single-vertical-pipe drainage system is low, in the single-vertical-pipe drainage system, when sewage and wastewater flow downwards in a vertical drainage vertical pipe, the sewage and wastewater do vortex motion downwards along the inner wall of a pipeline, an air channel is generated in the central part of the drainage vertical pipe, and air-water mixed flow is formed. 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, siphonage or airflow reverse occurs, water seal fails, and even sewage and waste water overflows from floor drains and sanitary wares. When the upper storied building is draining, positive pressure is formed below the vertical drainage pipe, so that water seal of the lower storied building is damaged under the action of the positive pressure, and sewage and wastewater flow back to a toilet from a floor drain and a sanitary ware. Negative pressure is formed above the drainage vertical pipe, so that water in the water seal is sucked out under the action of the negative pressure of the water seal of the high-rise building, the water seal is damaged, odor in the drainage vertical pipe is discharged to a toilet from a floor drain and sanitary ware, the higher the floor is, the larger the pressure difference in the drainage vertical pipe is, and therefore, the single-vertical-pipe drainage system cannot meet the requirements of high-rise residences.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a dual-riser drainage system, which improves the water flowing capacity of the drainage channel, ensures that the drainage channel always maintains the gas-water mixed flow, and has no positive-negative pressure difference, no water seal failure, and no sewage and wastewater overflow.

On one hand, the utility model provides a double-riser drainage system, wherein a three-way pipe, an H communicating pipe and an exhaust pipe for discharging sewage and wastewater in a toilet are arranged on each floor, the three-way pipe is connected with one side of the H communicating pipe through a flange to form a drainage channel, the exhaust pipe is connected with the other side of the H communicating pipe through a flange to form an exhaust channel, and air in the drainage channel is discharged to the exhaust channel through the H communicating pipe.

Furthermore, a leakage-proof device for draining accumulated water in the caisson is arranged on each floor, the leakage-proof device is embedded in a cast-in-place floor concrete layer of each floor, the leakage-proof device is arranged in the drainage channel, and the upper end of the leakage-proof device is connected with the three-way pipe through a flange.

Furthermore, a water seal cavity, a water accumulation outlet and a water seepage outlet are arranged on the leakage-proof device, the water accumulation outlet and the water seepage outlet are communicated with the water seal cavity, the water seal cavity is communicated with the drainage channel, and the water accumulation outlet and the water seepage outlet drain accumulated water on a concrete layer of the cast-in-place floor slab into the drainage channel.

Further, an inspection port for inspecting the drainage channel is included, the inspection port is arranged in the drainage channel, and the inspection port is connected with the H communicating pipe through a flange.

Furthermore, each floor is provided with an inspection opening.

Furthermore, a first Y-shaped communicating pipe is arranged at the bottom of the drainage channel, and two ports at the upper end of the first Y-shaped communicating pipe are respectively connected with the bottom of the drainage channel and the bottom of the exhaust channel through flanges.

Furthermore, a second Y-shaped communicating pipe is arranged at the top of the drainage channel, and two ports at the lower end of the second Y-shaped communicating pipe are respectively connected with the top of the drainage channel and the top of the exhaust channel through flanges.

Furthermore, the pipe fittings in the drainage channel and the exhaust channel are connected by adopting a deep bellmouth.

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

1. the water drainage channel and the exhaust channel are connected through the flange through the H communicating pipe, sewage and wastewater are discharged into the water drainage channel through the three-way pipe, the sewage and wastewater do vortex motion downwards along the inner wall of the water drainage channel, air in the water drainage channel is discharged to the exhaust channel through the H communicating pipe, the water drainage channel is guaranteed to maintain gas-water mixed flow all the time, positive and negative pressure difference cannot occur in the water drainage channel, water seal faults cannot occur, and sewage and wastewater overflow cannot occur.

2. The leakage-proof device can discharge the accumulated water above the concrete layer of the cast-in-place floor slab, prevent the concrete floor slab from leaking water and prevent odor and viruses in the drainage channel from entering a room.

3. The drainage channel is provided with the inspection port, so that the drainage channel can be inspected and cleaned conveniently and quickly.

Drawings

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

FIG. 1 is a schematic view of a dual riser drainage system of the present invention;

FIG. 2 is a schematic view of the leak protection device of FIG. 1.

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 figure 1, the utility model provides a double-riser drainage system, wherein a three-way pipe 3, an H communicating pipe 4 and an exhaust pipe 7 for discharging sewage and wastewater in a toilet are arranged on each floor, and the three-way pipe 3 is connected with a floor drain of the toilet and sanitary ware through flanges. The three-way pipe 3 is connected with one side of the H communicating pipe 4 through a flange to form a drainage channel, the exhaust pipe 7 is connected with the other side of the H communicating pipe 4 through a flange to form an exhaust channel, and air of the drainage channel is exhausted to the exhaust channel through the H communicating pipe 4.

As shown in fig. 2, each floor is provided with a leakage-proof device 2 for draining the accumulated water in the caisson, the leakage-proof devices 2 are embedded in the concrete floor slab of each floor, the leakage-proof devices 2 are arranged in the drainage channels, and the upper ends of the leakage-proof devices 2 are connected with the three-way pipes 3 through flanges. The height of the leakage-proof device 2 is consistent with that of a cast-in-place floor slab concrete layer, and a settling tank filling layer is arranged above the cast-in-place floor slab concrete layer. According to the specification of 4.5.5 of the technical code of the concrete structure of the high-rise building, the thickness of a cast-in-place slab of a common floor is not less than 80mm, the thickness of a buried pipe is not less than 100mm when the buried pipe is embedded, and the thickness of a top plate is not less than 120 mm. For a common residential building with an open space and a deep depth, the thickness of the floor slab is generally between 80 and 100 mm. In order to adopt the most common floor thickness, the concrete layer of the cast-in-place floor is designed to be 80mm, and the height of the leakage-proof device 2 is designed to be 80 mm. The leakage-proof device 2 is provided with a water-sealing cavity 22, a water accumulation outlet 20 and a water seepage outlet 21, the water accumulation outlet 20 and the water seepage outlet 21 are communicated with the water-sealing cavity 22, and the water-sealing cavity 22 is communicated with a water drainage channel. The caisson ponding of cast-in-place floor concrete layer top is arranged to the drainage channel in through ponding outlet 20, and when leak protection device 2 and cast-in-place floor concrete layer cooperation department formed the clearance, caisson ponding has prevented along this clearance flow direction infiltration outlet 21 in, and the caisson ponding has prevented to flow into lower floor resident's space along the fit clearance, prevents that the concrete floor from leaking, prevents that foul smell and virus in the drainage channel from scurrying into in the room.

As shown in fig. 1, a first Y-shaped communication pipe 1 is disposed at the bottom of the drainage channel, and two ports at the upper end of the first Y-shaped communication pipe 1 are connected to the bottom of the drainage channel and the bottom of the exhaust channel, respectively. And a second Y-shaped communicating pipe 6 is arranged at the top of the drainage channel, and two ports at the lower end of the second Y-shaped communicating pipe 6 are respectively connected with the top of the drainage channel and the top of the exhaust channel. Each floor is provided with an inspection port 5, the inspection ports 5 are arranged in the drainage channel, and the inspection ports 5 are connected with the H communicating pipes 4 through flanges. The inspection opening 5 can conveniently and quickly inspect and clean the drainage channel.

The pipe fittings in the drainage channel and the exhaust channel are connected by adopting deep bellmouths, namely, the joints of the first Y-shaped communicating pipe 1, the leak-proof device 2, the three-way pipe 3, the H communicating pipe 4, the inspection port 5, the exhaust pipe 7 and the like are connected by adopting deep bellmouths and flanges.

According to the utility model, the drainage channel and the exhaust channel are connected through the H communicating pipe 4 through the flange, sewage and wastewater are discharged into the drainage channel through the three-way pipe 3, the sewage and wastewater make downward swirling motion along the inner wall of the drainage channel, air in the drainage channel is discharged to the exhaust channel through the H communicating pipe 4, two ports at the upper end of the first Y-shaped communicating pipe 1 are respectively connected with the bottom of the drainage channel and the bottom of the exhaust channel through the flange, two ports at the lower end of the second Y-shaped communicating pipe 6 are respectively connected with the top of the drainage channel and the top of the exhaust channel through the flange, so that the drainage channel is ensured to always maintain gas-water mixed flow, namely the sewage and wastewater make downward swirling motion along the inner wall of the drainage channel, and an air channel is generated at the central part of the drainage channel to form gas-water mixed flow. The positive and negative pressure difference can not occur in the drainage channel, the water seal fault of the water seal cavity 22 in the leakage-proof device 2 can not occur, and the sewage and the waste water can not overflow.

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 utility model, 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. The utility model provides a two riser drainage systems, its characterized in that all is provided with three-way pipe (3), H communicating pipe (4), blast pipe (7) that are used for arranging the dirty waste water of bathroom on every floor upstairs, and three-way pipe (3) are connected through the flange with H communicating pipe (4) one side and are formed drainage channel, and blast pipe (7) are connected through the flange with H communicating pipe (4) opposite side and are formed exhaust passage, and drainage channel's air passes through H communicating pipe (4) and discharges to exhaust passage.

2. The double-riser drainage system according to claim 1, wherein a leakage prevention device (2) for draining accumulated water in the caisson is arranged on each floor, the leakage prevention device (2) is embedded in a concrete layer of a cast-in-place floor of each floor, the leakage prevention device (2) is arranged in the drainage channel, and the upper end of the leakage prevention device (2) is connected with the three-way pipe (3) through a flange.

3. The double-riser drainage system according to claim 2, wherein the anti-leakage device (2) is provided with a water seal cavity (22), a water accumulation outlet (20) and a water seepage outlet (21), the water accumulation outlet (20) and the water seepage outlet (21) are communicated with the water seal cavity (22), the water seal cavity (22) is communicated with the drainage channel, and the water accumulation outlet (20) and the water seepage outlet (21) drain accumulated water on a concrete layer of a cast-in-place floor slab into the drainage channel.

4. The double riser drainage system according to claim 1, comprising an inspection opening (5) for inspecting the drainage channel, the inspection opening (5) being arranged in the drainage channel, the inspection opening (5) being connected to the H-communication pipe (4) by a flange.

5. Double riser drainage system according to claim 4, wherein an inspection opening (5) is provided on each floor.

6. The double-riser drainage system according to any one of claims 1 to 5, wherein a first Y-shaped communication pipe (1) is arranged at the bottom of the drainage channel, and two ports at the upper end of the first Y-shaped communication pipe (1) are respectively connected with the bottom of the drainage channel and the bottom of the exhaust channel through flanges.

7. The double-riser drainage system according to any one of claims 1 to 5, wherein a second Y-shaped communicating pipe (6) is arranged at the top of the drainage channel, and two ports at the lower end of the second Y-shaped communicating pipe (6) are respectively connected with the top of the drainage channel and the top of the exhaust channel through flanges.

8. The dual riser drain system of any one of claims 1 to 5 wherein the pipe elements in the drain channel and the vent channel are connected using a deep socket.