Highway tunnel blowdown system
The highway tunnel sewage discharge system addresses drainage blockage by using sedimentation tanks and spiral-tangent connecting pipes to settle debris, enhancing pipe flow and integrating fire-fighting water recycling.
Patent Information
- Application Number
- CN202421006246.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-05-10
AI Technical Summary
Existing highway tunnel drainage systems face challenges with blockage due to debris such as mud and gravel, and sedimentation of silt in drainage pipes, which are difficult to clear and can lead to traffic accidents.
A highway tunnel sewage discharge system with sedimentation tanks along the road surface, connected to a central drainage pipe via spiral-tangent connecting pipes, and a water tank integrated with a fire-fighting system to recycle water for fire protection.
Prevents pipe blockage by settling debris in sedimentation tanks and using a spiral water flow, while integrating fire-fighting capabilities to conserve water in arid areas.
Smart Images
Figure CN222162715U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of tunnel drainage, and more specifically, particularly relates to a highway tunnel sewage discharge system. Background Art
[0002] Highway tunnels are passages for automobile transportation. Due to the presence of tunnel walls, which are connected to the road surface, water on the road surface cannot flow away from both sides of the road normally. If water accumulates on the road surface, it is very easy to cause traffic accidents. Therefore, a drainage system is designed in the tunnel. Water on the road surface is often accompanied by debris such as mud, gravel, and garbage. The drainage system in the tunnel is usually set underground due to spatial layout issues. Once the drainage system is blocked, it is extremely difficult to clear it.
[0003] In order to prevent drainage blockage, solutions have been proposed in the prior art. For example, the Chinese utility model patent with publication number: CN116104570A sets drainage pipe inspection wells and side ditch inspection wells to allow the gravel in the tunnel to settle at the bottom, and the filter screen filters the gravel, thus avoiding blockage of the middle drainage ditch due to the entry of gravel. However, since the water is always in a flowing state when discharging sewage, the silt cannot be completely settled, and a small amount of silt will enter the drainage pipe along with the sewage. Over the years, the sedimentation of silt in the drainage pipe will still block the drainage pipe. Therefore, in view of the existing problems, it is necessary to further optimize the tunnel sewage system. Utility Model Content
[0004] In view of the deficiencies of the prior art, the utility model provides a highway tunnel sewage discharge system to solve the technical problems described in the background technology.
[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a highway tunnel sewage system, in which sedimentation tanks are arranged along both sides of the road surface in the tunnel, the sedimentation tanks are covered with trench covers flush with the road surface, a central drainage pipe is buried under the road surface, the sedimentation tanks are connected to the central drainage pipe through multiple connecting pipes, the central drainage pipe is a circular pipe, and multiple connecting pipes are distributed at intervals and connected to the central drainage pipe along the spiral tangent direction, so that the water discharged from the multiple connecting pipes forms a spiral forward water flow in the central drainage pipe.
[0006] Optionally, the sedimentation tanks are provided in plurality and independently, and each of the sedimentation tanks is connected to the connecting pipe.
[0007] Optionally, the sedimentation tank is an integrated ditch, and a plurality of the connecting pipes are evenly spaced along the ditch direction.
[0008] Optionally, the water inlet of the connecting pipe is located in the middle of the depth of the sedimentation tank.
[0009] Optionally, a shielding eaves is provided above the water inlet of the connecting pipe.
[0010] Optionally, a filter screen is provided at the water inlet of the connecting pipe.
[0011] Optionally, the central drainage pipe is buried at a position lower than the sedimentation tank.
[0012] Optionally, the central drainage pipe is connected to a water tank, a fire-fighting pipe is connected to the water tank, and the fire-fighting pipe is connected to a fire-fighting system in the tunnel.
[0013] Optionally, a drainage pipe is connected to the water storage tank.
[0014] Optionally, the water inlet of the drainage pipe is located at the top layer of the water storage tank.
[0015] The utility model provides a highway tunnel sewage discharge system, which has the following beneficial effects:
[0016] 1. Settle the sewage in the sedimentation tank to reduce the amount of sediment entering the central drainage pipe and prevent blockage.
[0017] 2. The connecting pipes are distributed at intervals and connected to the central drain pipe along the spiral tangent direction, so that the water discharged from the multiple connecting pipes forms a spiral forward water flow in the central drain pipe, thereby preventing residual sediment from being deposited in the central drain pipe and clogging it.
[0018] 3. The highway tunnel sewage system is combined with the fire protection system, and a water tank is set up to store the water of the sewage system for fire fighting. When a fire occurs in the tunnel, the fire protection system can use a water pump to pump the water stored in the water tank for fire fighting. At the same time, the water used in fire fighting can pass through the sewage system and enter the water tank again for recycling. This combination can be suitable for arid and water-scarce areas, and is energy-saving and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 A schematic diagram of the structure of the highway tunnel sewage system provided in this embodiment;
[0020] Figure 2 The embodiment provided Figure 1 A schematic diagram of the enlarged structure of the middle part A;
[0021] Figure 3 A schematic diagram of the structure of the central drain pipe connection provided for this embodiment;
[0022] Figure 4 A schematic diagram of water flow in a central drain pipe provided for this embodiment;
[0023] Figure 5 A schematic diagram of the connection structure of the water tank provided in this embodiment.
[0024] In the figure: 1. Tunnel; 2. Road surface; 3. Sedimentation tank; 4. Ditch cover; 5. Central drainage pipe; 6. Connecting pipe; 7. Eaves; 8. Filter; 9. Water storage tank; 10. Fire-fighting pipe; 11. Drain pipe. DETAILED DESCRIPTION
[0025] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.
[0026] The technical solution provided by the utility model is: a highway tunnel sewage system, which is used to discharge sewage inside the tunnel. The sewage inside the tunnel has multiple sources, which may be water seepage inside the tunnel, or water flooding in during heavy rain, or water generated by cleaning vehicles washing the road surface. These sewage are often mixed with debris such as mud, gravel or garbage. If these debris are directly discharged through the tunnel drainage system, it is very easy to cause pipe blockage. Therefore, the highway tunnel sewage system provided in this embodiment can effectively prevent the highway tunnel drainage system from being blocked by optimizing the system layout.
[0027] like Figure 1 Figure 2 As shown, the system is provided with sedimentation tanks 3 along both sides of the road surface 2 in the tunnel 1, and the sedimentation tanks 3 are covered with trench covers 4 flush with the road surface 2. Sewage enters the sedimentation tanks 3 through the trench covers 4 for sedimentation and stratification, and the silt and gravel sink to the bottom of the sedimentation tanks 3. A central drain pipe 5 is buried under the road surface 2, and the sedimentation tank 3 is connected to the central drain pipe 5 through multiple connecting pipes 6. The sewage is precipitated and stratified to prevent the debris in it from clogging the central drain pipe 5. It should be noted that the buried position of the central drain pipe 5 needs to be lower than the sedimentation tank 3, so that not only the sewage in the sedimentation tank 3 can flow into the central drain pipe 5, but also a drop is generated between the central drain pipe 5 and the sedimentation tank 3. The drop can speed up the flow rate of the water in the pipe and prevent the residual silt from settling.
[0028] In order to further improve the anti-blocking effect, such as Figure 3 As shown, the central drain pipe 5 is designed as a round pipe, and a plurality of connecting pipes 6 are distributed at intervals and connected to the central drain pipe 5 along the spiral tangent direction, so that the water discharged from the plurality of connecting pipes 6 forms a spiral forward water flow in the central drain pipe 5. Figure 4 As shown, such a design enables the spiral forward water flow to roll up the remaining sediment in the sewage and discharge it along the central drain pipe 5, preventing the sediment from being deposited in the central drain pipe 5 and avoiding the clogging of the central drain pipe 5 by the sediment deposited for a long time.
[0029] Among them, the sedimentation tank 3 has multiple settings:
[0030] One is that the sedimentation tanks 3 are independently arranged in a plurality, and each sedimentation tank 3 is connected with a connecting pipe 6. The advantage of this method is that the blockage of a single sedimentation tank 3 will not affect the sedimentation effect of the entire system.
[0031] Another method is that the sedimentation tank 3 is an integrated ditch, and multiple connecting pipes 6 are evenly spaced along the ditch. The advantage of this method is that the sediment and debris settled in the ditch are easy to clean, and the ditch can also participate in drainage work.
[0032] In the sedimentation tank 3, in addition to sedimentable materials such as mud, gravel, etc., there are also floating objects such as leaves, foam, and beverage bottles. In order to prevent these floating objects from entering the central drain pipe 5 and clogging it, a filter screen 8 is provided at the water inlet of the connecting pipe 6. The filter screen 8 is used to filter these floating objects and leave them in the sedimentation tank 3 to be cleaned.
[0033] When sewage enters the sedimentation tank 3, it often flows down along the side walls of the sedimentation tank 3 on both sides of the road. In order to prevent the silt carried by the sewage from directly entering the connecting pipe 6, Figure 2 As shown, the system is provided with a shielding eave 7 above the water inlet of the connecting pipe 6, and the sewage on the side wall is blocked and diverted by the shielding eave 7 to prevent the sewage from directly entering the connecting pipe 6. In addition, in order to facilitate the cleaning of the sedimentation tank 3 and the filter screen 8, the shielding eave 7 is configured to be foldable upwards. When cleaning, the shielding eave 7 is folded to avoid obstruction, thereby providing a larger operating space.
[0034] like Figure 5 As shown, the highway tunnel sewage system can not only drain sewage, but also be combined with the fire protection system. By connecting the central drainage pipe 5 to the water tank 9, the water tank 9 can be set inside or outside the tunnel, and the water tank 9 is connected to the fire protection pipe 10, and the fire protection pipe 10 is connected to the fire protection system in the tunnel 1. When a fire occurs in the tunnel, the fire protection system can use a water pump to pump the water stored in the water tank 9 for fire extinguishing. At the same time, the water involved in the fire extinguishing can be re-entered into the water tank 9 through the sewage system for recycling. This combination can be suitable for arid and water-scarce areas, and is energy-saving and environmentally friendly. It should be noted that if the water in the water tank 9 is too dirty, a filter can be installed in the fire protection system to filter the water before putting it into use to avoid damage to the fire protection system.
[0035] In addition, if too much water is discharged in the tunnel, it will exceed the storage capacity of the water tank 9. Therefore, a drain pipe 11 is connected to the water tank 9 to drain excess water. The water inlet of the drain pipe 11 is located on the top layer of the water tank 9. This design ensures that the water in the water tank 9 is filled before draining, thereby ensuring fire-fighting supply.
[0036] The above description is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and the utility model concept of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
Claims
1. A highway tunnel sewage system, characterized in that: Sedimentation troughs (3) are arranged along both sides of a road surface (2) in a tunnel (1). The sedimentation troughs (3) are covered with trench covers (4) flush with the road surface (2). A central drainage pipe (5) is buried below the road surface (2). The sedimentation troughs (3) are connected to the central drainage pipe (5) through a plurality of connecting pipes (6). The central drainage pipe (5) is a circular pipe. A plurality of connecting pipes (6) are distributed at intervals and connected to the central drainage pipe (5) along a spiral tangent direction, so that water discharged from the plurality of connecting pipes (6) forms a spiral forward water flow in the central drainage pipe (5).
2. The highway tunnel sewage system according to claim 1, characterized in that: The sedimentation tanks (3) are arranged in a plurality of independent locations, and each of the sedimentation tanks (3) is connected to the connecting pipe (6).
3. The highway tunnel sewage drainage system according to claim 1, characterized in that: The sedimentation tank (3) is an integrated ditch, and a plurality of connecting pipes (6) are evenly spaced along the ditch direction.
4. The highway tunnel sewage system according to claim 1, characterized in that: The water inlet of the connecting pipe (6) is located in the middle of the depth of the sedimentation tank (3).
5. The highway tunnel sewage drainage system according to claim 1, characterized in that: A shielding eave (7) is provided above the water inlet of the connecting pipe (6).
6. The highway tunnel sewage drainage system according to claim 1, characterized in that: The water inlet of the connecting pipe (6) is provided with a filter screen (8).
7. The highway tunnel sewage drainage system according to claim 1, characterized in that: The buried position of the central drainage pipe (5) is lower than the sedimentation tank (3).
8. The highway tunnel sewage discharge system according to any one of claims 1 to 7, characterized in that: The central drainage pipe (5) is connected to a water tank (9), a fire-fighting pipe (10) is connected to the water tank (9), and the fire-fighting pipe (10) is connected to a fire-fighting system in the tunnel (1).
9. The highway tunnel sewage drainage system according to claim 8, characterized in that: The water storage tank (9) is connected to a discharge pipe (11).
10. The highway tunnel sewage drainage system according to claim 9, characterized in that: The water inlet of the drainage pipe (11) is located at the top layer of the water storage tank (9).