Building drainage double-channel top-extending breather pipe system

Abstract

The invention 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 present invention belongs to the technical field of building drainage engineering, and in particular relates to a dual-channel roof-extending ventilator system for high-rise building drainage. The dual-channel structural design solves the problems of low drainage capacity of traditional systems, high risk of roof leakage, and poor risk warning. Background Art

[0002] In the building drainage system, the top vent pipe plays a key role in maintaining the air pressure balance in the drainage pipe, discharging harmful gases to the outside, and ensuring the drainage capacity of the system. As the building height increases, the pressure fluctuations generated during the drainage process become more obvious, resulting in an imbalance of air pressure in the drainage pipe, and then many problems such as poor drainage and water seal damage; at the same time, high-rise buildings have a large drainage volume and a fast flow rate, which requires a higher drainage capacity of the system. It is often difficult to meet the requirements by only setting up deep top vent pipes, and a drainage system with dedicated ventilation risers is required. This system generally combines the ventilation riser and the drainage riser into one pipe extending out of the roof on the top floor. Although it solves the problem of drainage and ventilation of the system, if the system is burdened with too many sanitary appliances, the drainage capacity of the system is obviously insufficient. Experiments have shown that if both the drainage riser and the ventilation riser are extended out of the roof, the drainage capacity of the system will be significantly improved. However, due to the complex roof structure of high-rise buildings, the setting of too many top-extending pipes not only increases the difficulty of installation, but also significantly increases the risk of roof leakage, and the subsequent maintenance cost is high. In addition, the traditional top-mounted snorkel drainage system has other disadvantages. It cannot effectively monitor the airflow direction, air pressure and other conditions in the drainage pipe, and cannot predict the risks that may arise in the drainage system. Summary of the invention

[0003] In view of the above-mentioned technical problems, the present invention provides a dual-channel roof-extending vent pipe system for building drainage, which can improve the drainage capacity of the system, reduce the number of roof-extending pipes, and reduce the roof leakage rate, while enhancing the system risk warning capability.

[0004] The objective of the present invention is achieved through the following technical solutions:

[0005] The invention discloses a double-channel roof-extending vent pipe system for building drainage, comprising an outer pipe, an inner pipe, a drainage riser interface and a special vent riser interface. The outer pipe is sleeved with the inner pipe and arranged concentrically or eccentrically tangentially, and the inner pipe extends out of the bottom of the outer pipe. A drainage riser interface connected to the building drainage riser is arranged at the protruding end of the bottom of the inner pipe. The bottom outlet of the outer pipe is obliquely connected to the special vent riser interface, and the special vent riser interface is connected to the special vent riser for building drainage. The tops of the inner pipe and the outer pipe extend out of the floor slab to form a roof-extending vent pipe outlet connected to the atmosphere outside the building, so as to improve the drainage capacity of the system and reduce the water leakage rate of the roof.

[0006] Furthermore, one side of the bottom of the outer tube close to the building is completely closed to the inner tube wall, and the other side is connected to a dedicated ventilation riser interface.

[0007] Further, the inner tube diameter is 100 mm or 150 mm, and the cross-sectional area between the outer tube and the inner tube is the same as the cross-sectional area of ​​the dedicated ventilation riser interface; when the inner tube diameter is 100 mm, when the dedicated ventilation riser length is greater than 50 m, its diameter is 100 mm, and when the dedicated ventilation riser length is less than 50 m, its diameter is 75 mm;

[0008] When the inner pipe diameter is 150mm, when the length of the dedicated ventilation riser is greater than 50m, its diameter is 150mm, and when the length of the dedicated ventilation riser is less than 50m, its diameter is 100mm.

[0009] Furthermore, a water stop ring placed in the floor slab is arranged near the top of the outer wall of the outer tube, and a dedicated ventilation riser interface connected from the outer tube is located below the floor slab.

[0010] Furthermore, the inner walls of the inner tube and the outer tube are respectively provided with an inner tube air pressure and air flow sensor and an outer tube air pressure and air flow sensor, which are respectively connected to the smart water supply and drainage system through signal transmission lines to transmit the collected data to the smart water supply and drainage system; the inner tube air pressure and air flow sensor and the outer tube air pressure and air flow sensor are used to measure the gas flow direction in the tube and detect the air pressure to monitor whether the drainage system is leaking or blocked.

[0011] Furthermore, the outer tube and the inner tube are made of metal or plastic.

[0012] Furthermore, the connection methods of the drainage riser interface and the building drainage riser, and the special ventilation riser interface and the special ventilation riser are flange connection, threaded connection, clamp connection, hot melt connection or bonding.

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

[0014] 1. The roof-extending vent pipe of the present invention adopts a double-channel structure design, which can not only improve the drainage capacity of the system, but also reduce the number of roof-extending pipes and reduce the roof leakage rate.

[0015] 2. The present invention arranges air pressure and air flow sensors on the inner pipe and the outer pipe to detect the air flow direction and air pressure in the pipeline, improve the risk warning capability of the drainage system, and lay the foundation for establishing a sound intelligent water supply and drainage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a composition diagram of the concentric double-channel top-extending ventilation pipe system of the present invention.

[0017] Figure 2 for Figure 1 AA cross-section diagram.

[0018] Figure 3 It is a composition diagram of the eccentric double-channel top-extending ventilating pipe system of the present invention.

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

[0020] In the figure: 1. outer pipe, 2. inner pipe, 3. drainage riser interface, 4. dedicated ventilation riser interface, 5. top ventilation pipe outlet, 6. water stop ring, 7. inner pipe air pressure and air flow sensor, 8. outer pipe air pressure and air flow sensor, 9. signal transmission line. DETAILED DESCRIPTION

[0021] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0022] Example 1: Figure 1 , Figure 2 As shown, the present invention is a dual-channel top-extending vent pipe system for building drainage, comprising an outer pipe 1, an inner pipe 2, a drainage riser interface 3 and a special vent riser interface 4. The outer pipe 1 is concentrically sleeved with the inner pipe 2, and the inner pipe 2 extends out of the bottom of the outer pipe 1. The drainage riser interface 3 connected to the building drainage riser is arranged at the protruding end of the bottom of the inner pipe 2. The bottom outlet of the outer pipe 1 is obliquely connected to the special vent riser interface 4. The special vent riser interface 4 is connected to the special vent riser for building drainage. The tops of the inner pipe 2 and the outer pipe 1 extend out of the floor slab to form a top-extending vent pipe outlet 5 connected to the atmosphere outside the building.

[0023] One side of the bottom of the outer tube 1 close to the building is completely closed to the wall of the inner tube 2, and the other side is connected to a dedicated ventilation riser interface 4.

[0024] In this example, the inner pipe diameter is 100mm, and the cross-sectional area between the outer pipe and the inner pipe 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] The outer wall of the outer pipe 1 is provided with a water stop ring 6 placed in the floor near the top, the outer pipe 1 and the inner pipe 2 above the water stop ring 6 extend out of the top of the floor, the outer pipe 1 below the water stop ring 6 is placed in the building, and the dedicated ventilation riser interface 4 connected from the outer pipe 1 is located below the floor in the building. The water stop ring can strengthen the firmness and tightness of the connection between the pipeline and the roof, and prevent rainwater from penetrating into the building through the gap between the roof and the pipeline.

[0026] The inner walls of the inner tube 2 and the outer tube 1 are respectively provided with an inner tube air pressure and air flow sensor 7 and an outer tube air pressure and air flow sensor 8, which are respectively connected to the smart water supply and drainage system (existing structure) through a signal transmission line 9, and the collected data are transmitted to the smart water supply and drainage system. The inner tube air pressure and air flow sensor 7 and the outer tube air pressure and air flow sensor 8 are used to measure the gas flow direction in the pipe and detect the air pressure 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 modes of the drainage riser interface 3 and the building drainage riser, and the special ventilation riser interface 4 and the special ventilation riser are all hot-melt connection or bonding.

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

[0030] The present invention realizes independent operation of drainage and ventilation functions through the design of separation of inner tube 2 and outer tube 1, improves the drainage capacity of the system, and uses the top-extended ventilation pipe outlet 5 to communicate with the atmosphere to balance the system air pressure. The airflow direction and air pressure are detected by the inner tube air pressure and airflow sensor 7 and the outer tube air pressure and airflow sensor 8, and the system monitors the working status in real time, providing data support for the intelligent water supply and drainage system, and 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 Example 1 is that the centers of the outer tube 1 and the inner tube 2 in this example are different, they are eccentrically arranged, and the outer tube 1 is tangent to the inner tube 2.

[0032] The inner pipe has a diameter of 150 mm, and the cross-sectional area between the outer pipe and the inner pipe 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 50 m, its diameter is 150 mm; when the length of the dedicated ventilation riser is less than 50 m, its diameter is 100 mm. Longer ventilation risers require a larger diameter to maintain sufficient airflow to balance the air pressure in the drainage system and prevent water seal damage or poor drainage caused by negative or positive pressure. Considering economic efficiency, shorter ventilation risers use relatively smaller diameters.

[0033] The connection modes of the drainage riser interface 3 and the building drainage riser, and the special ventilation riser interface 4 and the special ventilation riser are flange connection, threaded connection or clamp connection.

[0034] The eccentric arrangement of the present invention is conducive to the gas in the ventilation riser being connected with the outer pipe 1, and then quickly connected with the outdoor atmosphere through the top-extending ventilation pipe outlet 5.

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

[0036] It can be understood that the above specific description of the present invention is only used to illustrate the present invention and is not limited to the technical solutions described in the embodiments of the present invention. Those skilled in the art should understand that the present invention can still be modified or replaced by equivalents to achieve the same technical effects; as long as the use requirements are met, they are within the protection scope of the present invention.

Claims

1. A building drainage dual-channel top-extending ventilator system, characterized in that: It includes an outer pipe, an inner pipe, a drainage riser interface and a special ventilation riser interface. The outer pipe and the inner pipe are sleeved and arranged concentrically or eccentrically tangentially. The inner pipe extends out of the bottom of the outer pipe. A drainage riser interface connected to the drainage riser of the building is arranged at the protruding end of the bottom of the inner pipe. The bottom outlet of the outer pipe is obliquely connected to the special ventilation riser interface. The special ventilation riser interface is connected to the special ventilation riser for building drainage. The tops of the inner and outer pipes extend out of the floor slab to form a top ventilation pipe outlet connected to the atmosphere outside the building.

2. The building drainage dual-channel top-extending ventilating pipe system according to claim 1 is characterized in that: One side of the bottom of the outer pipe close to the building is completely closed to the wall of the inner pipe, and the other side is connected to a special ventilation riser interface.

3. The building drainage dual-channel top-extending ventilating pipe system according to claim 1 is characterized in that: The inner tube has a diameter of 100 mm or 150 mm, and the cross-sectional area between the outer tube and the inner tube is the same as the cross-sectional area of ​​the dedicated ventilation riser interface; when the inner tube has a diameter of 100 mm, when the length of the dedicated ventilation riser is greater than 50 m, its diameter is 100 mm, and when the length of the dedicated ventilation riser is less than 50 m, its diameter is 75 mm; When the inner pipe diameter is 150mm, when the length of the dedicated ventilation riser is greater than 50m, its diameter is 150mm, and when the length of the dedicated ventilation riser is less than 50m, its diameter is 100mm.

4. The building drainage dual-channel top-extending ventilating pipe system according to claim 1 is characterized in that: The outer wall of the outer pipe is provided with a water stop ring placed in the floor slab near the top, and the dedicated ventilation riser interface connected from the outer pipe is located below the floor slab.

5. The building drainage dual-channel top-extending ventilating pipe system according to claim 1 is characterized in that: The inner walls of the inner tube and the outer tube are respectively provided with an inner tube air pressure and air flow sensor and an outer tube air pressure and air flow sensor, which are respectively connected to the smart water supply and drainage system through signal transmission lines to transmit the collected data to the smart water supply and drainage system; the inner tube air pressure and air flow sensor and the outer tube air pressure and air flow sensor are used to measure the gas flow direction in the tube and detect the air pressure to monitor whether the drainage system is leaking or blocked.

6. The building drainage dual-channel top-extending ventilating pipe system according to claim 1 is characterized in that: The outer tube and the inner tube are made of metal or plastic.

7. The building drainage dual-channel top-extending ventilating pipe system according to claim 1 is characterized in that: The connection methods of the drainage riser interface and the building drainage riser, and the special ventilation riser interface and the special ventilation riser are flange connection, threaded connection, clamp connection, hot melt connection or bonding.

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