Building drainage double-channel top-extending breather pipe system

Abstract

The utility model discloses a building drainage double-channel top-extending breather pipe system, and belongs to the technical field of building drainage engineering. Comprising an outer pipe, an inner pipe, a drainage stand pipe connector and a special ventilation stand pipe connector, the outer pipe and the inner pipe are arranged in a sleeved and concentric or eccentric tangent mode, the inner pipe extends out of the bottom of the outer pipe, the drainage stand pipe connector connected with a building drainage stand pipe is arranged at the extending end of the bottom of the inner pipe, and an outlet in the bottom of the outer pipe is obliquely connected with the special ventilation stand pipe connector. The special ventilation vertical pipe connector is connected with a building drainage special ventilation vertical pipe, and the top of the inner pipe and the top of the outer pipe extend out of a floor to form a top-extending ventilation pipe outlet communicated with the atmosphere outside a building. The system can significantly improve the drainage capacity of a building drainage system, reduce the number of roof-extending pipelines, reduce the roof water leakage rate, detect the airflow direction and air pressure in the drainage pipeline, further judge the working condition in the system, enhance the risk early warning capacity of the system, and lay a foundation for sound and intelligent water supply and drainage systems.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of building drainage engineering, and particularly relates to a double-channel roof-stretching air pipe system for high-rise building drainage. BACKGROUND

[0002] In a building drainage system, the roof-stretching air pipe plays a key role in maintaining the air pressure balance in the drainage pipeline, discharging harmful gases to the outdoor, and ensuring the drainage capacity of the system. With the increase of building height, the pressure fluctuation generated during the drainage process is more obvious, which leads to the imbalance of air pressure in the drainage pipeline, and further causes many problems such as poor drainage and water seal damage. At the same time, the drainage capacity of high-rise buildings is large and the flow rate is fast, which requires higher drainage capacity of the system. Therefore, it is necessary to use a drainage system with a dedicated air standpipe. The system generally combines the air standpipe and the drainage standpipe into one pipeline at the top of the building and stretches it out of the roof. Although this solves the problems of system drainage and air, if the system is burdened with too many sanitary fixtures, the system drainage capacity is obviously insufficient. Tests have shown that if the drainage standpipe and the air standpipe are both stretched out of the roof, the system drainage capacity will be significantly improved. However, due to the complex structure of the roof of high-rise buildings, the setting of too many roof-stretching pipelines not only increases the installation difficulty, but also significantly increases the risk of roof leakage, and the maintenance cost is high. In addition, the traditional roof-stretching air pipe drainage system also has other disadvantages, such as being unable to effectively monitor the airflow direction, air pressure and other conditions in the drainage pipeline, and being unable to predict the risks that may occur in the drainage system. SUMMARY

[0003] In view of the above technical problems, the application provides a double-channel roof-stretching air pipe system for building drainage, which can improve the system drainage capacity, reduce the number of roof-stretching pipelines, reduce the roof leakage rate, and strengthen the system risk warning capability.

[0004] The purpose of the application is achieved by the following technical solutions:

[0005] The double-channel roof-stretching air pipe system for building drainage comprises an outer pipe, an inner pipe, a drainage standpipe interface and a dedicated air standpipe interface. The outer pipe and the inner pipe are sleeved, concentric or tangentially eccentric. The inner pipe is stretched out of the bottom of the outer pipe. The drainage standpipe interface is arranged at the bottom of the inner pipe and connected with the building drainage standpipe. The outlet of the bottom of the outer pipe is obliquely connected with the dedicated air standpipe interface. The dedicated air standpipe interface is connected with the building drainage dedicated air standpipe. The top of the inner pipe and the outer pipe is stretched out of the floor to form a roof-stretching air pipe outlet connected with the outdoor atmosphere. The system drainage capacity is improved, and the roof leakage rate is reduced.

[0006] Further, the outer tube is fully closed on one side near the bottom of the building and connected to the special vent stack interface on the other side.

[0007] Further, the diameter of the inner tube is 100mm or 150mm, the cross-sectional area between the outer tube and the inner tube is the same as the cross-sectional area of the special vent stack interface; when the diameter of the inner tube is 100mm, the diameter of the special vent stack is 100mm when the length of the special vent stack is greater than 50m, and the diameter of the special vent stack is 75mm when the length of the special vent stack is less than 50m.

[0008] When the diameter of the inner tube is 150mm, the diameter of the special vent stack is 150mm when the length of the special vent stack is greater than 50m, and the diameter of the special vent stack is 100mm when the length of the special vent stack is less than 50m.

[0009] Further, the outer wall of the outer tube is provided with a water stop ring placed in the floor near the top, and the special vent stack interface connected to the outer tube is located below the floor.

[0010] Further, the inner wall of the inner tube and the outer tube is respectively provided with an inner tube air pressure flow sensor and an outer tube air pressure flow sensor, which are respectively connected to the intelligent water supply and drainage system through signal transmission lines, and the collected data is transmitted to the intelligent water supply and drainage system; the inner tube air pressure flow sensor and the outer tube air pressure flow sensor measure the direction of the gas flow in the pipe and detect the air pressure, so as to monitor whether the drainage system leaks or is blocked.

[0011] Further, the material of the outer tube and the inner tube is metal or plastic.

[0012] Further, the connection mode of the drainage stack interface and the building drainage stack, and the connection mode of the special vent stack interface and the special vent stack are all flange connection, screw connection, clamp connection, hot melting connection or adhesion.

[0013] The beneficial effects of the present application are:

[0014] 1. The stretch top vent pipe of the present application adopts a double channel structure design, which can improve the drainage capacity of the system, reduce the number of stretch top pipes, and reduce the roof leakage rate.

[0015] 2. The present application sets air pressure flow sensors in the inner tube and the outer tube, which can detect the direction of the airflow in the pipe and the air pressure, improve the risk early warning capability of the drainage system, and lay a foundation for establishing and perfecting the intelligent water supply and drainage system. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The figure is a sectional view of the concentric double channel stretch top vent pipe system of the present application.

[0017] Figure 2 is Figure 1 A-A sectional view.

[0018] Figure 3 This is a diagram showing the composition of the eccentric dual-channel roof venting system of the present invention.

[0019] Figure 4 for Figure 3 BB cross-section.

[0020] In the diagram: 1. Outer pipe, 2. Inner pipe, 3. Drainage riser interface, 4. Dedicated vent riser interface, 5. Expansion vent outlet, 6. Water stop ring, 7. Inner pipe air pressure and airflow sensor, 8. Outer pipe air pressure and airflow sensor, 9. Signal transmission line. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] Example 1: As Figure 1 , Figure 2 As shown, the present invention discloses a building drainage dual-channel roof-mounted venting pipe system, comprising an outer pipe 1, an inner pipe 2, a drainage riser interface 3, and a dedicated venting riser interface 4. The outer pipe 1 and the inner pipe 2 are concentrically nested, with the inner pipe 2 extending beyond the bottom of the outer pipe 1. A drainage riser interface 3, which connects to the building drainage riser, is provided at the bottom of the inner pipe 2. The bottom outlet of the outer pipe 1 is obliquely connected to the dedicated venting riser interface 4. The dedicated venting riser interface 4 is connected to the building drainage dedicated venting riser. The tops of the inner pipe 2 and the outer pipe 1 extend beyond the floor slab to form a roof-mounted venting pipe outlet 5 that communicates with the outside atmosphere of the building.

[0023] The outer pipe 1, located near the bottom of the building, is completely closed to the inner pipe 2 wall on one side, and connected to a dedicated ventilation riser interface 4 on the other side.

[0024] In this example, the inner pipe diameter is 100mm. The cross-sectional area between the outer and inner pipes is the same as the cross-sectional area of ​​the dedicated ventilation riser interface. When the length of the dedicated ventilation riser is greater than 50m, its diameter is 100mm; when the length of the dedicated ventilation riser is less than 50m, its diameter is 75mm.

[0025] A water-stop ring 6 is installed on the outer wall of the outer pipe 1 near the top, which is placed inside the floor slab. The outer pipe 1 and inner pipe 2 above the water-stop ring 6 extend out of the top of the floor slab, while the outer pipe 1 below the water-stop ring 6 is placed inside the building. The dedicated venting riser interface 4 connected from the outer pipe 1 is located below the floor slab inside the building. The water-stop ring can strengthen the connection between the pipe and the roof and prevent rainwater from seeping into the building through the gap between the roof and the pipe.

[0026] The inner walls of the inner pipe 2 and the outer pipe 1 are respectively equipped with an inner pipe air pressure and airflow sensor 7 and an outer pipe air pressure and airflow sensor 8, which are respectively connected to the smart water supply and drainage system (existing structure) through a signal transmission line 9. The collected data is transmitted to the smart water supply and drainage system. The inner pipe air pressure and airflow sensor 7 and the outer pipe air pressure and airflow sensor 8 measure the direction of gas flow and detect the air pressure in the pipe to monitor whether the drainage system is leaking or blocked.

[0027] The outer tube 1 and the inner tube 2 are made of metal or plastic.

[0028] The connection methods for the drainage riser interface 3 and the building drainage riser, the special ventilation riser interface 4 and the special ventilation riser are all heat fusion connection or adhesive bonding.

[0029] The intelligent water supply and drainage system described is an existing technology that controls the water supply and drainage of the entire building.

[0030] This invention utilizes a separate design for the inner pipe 2 and the outer pipe 1 to enable independent operation of drainage and ventilation functions, thereby improving the system's drainage capacity. Simultaneously, the system connects to the atmosphere via the outlet 5 of the vent pipe, balancing the system's air pressure. Airflow direction and pressure are detected by the inner pipe air pressure and airflow sensor 7 and the outer pipe air pressure and airflow sensor 8, allowing the system to monitor its operational status in real time. This provides data support for intelligent water supply and drainage systems, significantly improving the performance and safety of the drainage system.

[0031] Example 2: Figure 3 , Figure 4 As shown, the difference between this example and Embodiment 1 is that the outer tube 1 and the inner tube 2 in this example have different centers and are eccentrically set, and the outer tube 1 and the inner tube 2 are tangent.

[0032] The inner pipe has a diameter of 150mm, and the cross-sectional area between the outer and inner pipes is the same as that of the dedicated vent riser interface. When the length of the dedicated vent riser is greater than 50m, its diameter is 150mm; when the length of the dedicated vent riser is less than 50m, its diameter is 100mm. Longer vent risers require a larger diameter to maintain sufficient airflow to balance the air pressure in the drainage system, preventing water seal damage or poor drainage caused by negative or positive pressure. At the same time, considering economy, shorter vent risers use a relatively smaller diameter.

[0033] The connection methods for the drainage riser interface 3 and the building drainage riser, the special vent riser interface 4 and the special vent riser are all flange connection, threaded connection or clamp connection.

[0034] The eccentric design of this invention facilitates the connection between the gas in the ventilation riser and the outer pipe 1, thereby enabling rapid connection with the outdoor atmosphere through the outlet 5 of the roof-mounted ventilation pipe.

[0035] Components not described in detail in this application are all existing conventional technologies and will not be described further here.

[0036] It can be understood that the above specific description of the present application is only for illustrating the present application and is not limited to the technical solutions described in the embodiments of the present application. Those skilled in the art should understand that the present application can still be modified or replaced equivalently to achieve the same technical effects. As long as the use needs are met, it is within the protection scope of the present application.

Claims

1. A dual channel roof vent system for architectural drainage, characterized by: The utility model discloses a building drainage system, which comprises an outer pipe, an inner pipe, a drainage riser interface and a special vent riser interface.

2. The dual channel roof vent system for building drainage according to claim 1, wherein: The inner pipe is arranged concentrically or tangentially with the outer pipe and extends out of the bottom of the outer pipe.

3. The dual channel roof vent system for building drainage according to claim 1, wherein: The bottom of the inner pipe is provided with the drainage riser interface connected with the building drainage riser. The bottom outlet of the outer pipe is connected with the special vent riser interface.

4. The dual channel roof vent system for building drainage according to claim 1, wherein: The special vent riser interface is connected with the special vent riser of the building.

5. The dual channel roof vent system for building drainage according to claim 1, wherein: The diameter of the inner pipe is 100mm or 150mm.

6. The dual channel roof vent system for building drainage according to claim 1, wherein: The cross-sectional area between the outer pipe and the inner pipe is the same as that of the special vent riser interface.

7. The dual channel roof vent system for building drainage according to claim 1, wherein: When the length of the special vent riser is greater than 50m, the diameter of the special vent riser is 100mm. When the length of the special vent riser is less than 50m, the diameter of the special vent riser is 75mm. When the diameter of the inner pipe is 150mm, the diameter of the special vent riser is 150mm when the length of the special vent riser is greater than 50m. The diameter of the special vent riser is 100mm when the length of the special vent riser is less than 50m. The outer wall of the outer pipe is provided with a water stop ring arranged in the floor near the top. The inner wall of the inner pipe and the outer pipe is respectively provided with an inner pipe air pressure airflow sensor and an outer pipe air pressure airflow sensor. The sensors are connected with the intelligent water supply and drainage system through signal transmission lines to transmit the collected data to the intelligent water supply and drainage system. The direction of the airflow in the pipe and the air pressure are measured to monitor whether the drainage system leaks or is blocked. The outer pipe and the inner pipe are made of metal or plastic. The drainage riser interface and the building drainage riser, and the special vent riser interface and the special vent riser are connected by flange connection, screw connection, clamp connection, hot melting connection or adhesion.

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