CN213682032U

CN213682032U - Drainage structure and sponge city water storage drainage system

Info

Publication number: CN213682032U
Application number: CN202021666267.1U
Authority: CN
Inventors: 林威
Original assignee: Tianjin Jianyan Rock And Soil Engineering Co ltd
Current assignee: Tianjin Jianyan Rock And Soil Engineering Co ltd
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2021-07-13
Anticipated expiration: 2030-08-12

Abstract

The utility model discloses a drainage structure, which comprises a water injection pump and a water injection pipe; the lower end of the water injection pipe extends downwards to a permeable zone below the ground surface; one end of the water injection pump is communicated with the surface accumulated water or the stored water, and the other end of the water injection pump is communicated with the water injection pipe and is used for injecting water into the water permeable layer area through the water injection pipe. The utility model also provides a sponge city retaining drainage system, include as before drainage structures. By adopting the technical scheme, the drainage structure and the sponge urban water storage and drainage system can inject accumulated water or stored water into the underground permeable layer through the water injection pipe by the water injection pump, and the permeable layer has stronger water permeability, so that the accumulated water or the stored water can be quickly discharged; in addition, the rainwater is pollution-free, can constitute the replenishment to groundwater after being poured into the permeable bed, helps solving the problem that ground subsides simultaneously.

Description

Drainage structure and sponge city water storage drainage system

Technical Field

The utility model relates to a drainage structures and sponge city retaining drainage system belongs to sponge city technical field.

Background

At present, surface runoff dredging and stagnation storage facilities exceeding water injection pipe channels are commonly lacked in cities in China, the capacity of the traditional rainfall flood regulation and storage facilities is limited, surface runoff is increased in city development and construction, and therefore, the construction of the over-standard rainfall flood dredging and stagnation storage facilities is very necessary. In the prior art, a large excavator is mainly adopted for excavating in the sponge city construction process, buildings are not arranged around the sponge city, otherwise, the sponge city can influence the surrounding buildings in the construction process, and the safety of the surrounding buildings is influenced. In view of the above, the applicant's prior application CN210421329U provides a sponge urban water storage system, which is characterized in that filtering seepage holes are laid in the length directions of the road surface and the two sides of the road surface, and the seepage holes are communicated with an underground water tank buried in the side portion of the road surface, so as to realize the collection, storage and reuse of rainwater, and can safely, economically and efficiently construct underground water storage facilities of sponge cities in public greenbelts, roads and other places of new and built urban areas, perfect over-standard rainwater runoff drainage systems of new and old urban areas, solve urban stubborn problems such as urban waterlogging and water environment deterioration, effectively improve the living experience of urban residents, and realize the concept of constructing sponge cities. However, underground water storage facilities have limited water storage capacity and still accumulate water in the case of more rainwater. In the prior art, a scheme for guiding accumulated water into the ground for infiltration also exists, however, in some areas, such as Tianjin areas, the soil structure of the subsurface layer belongs to a watertight layer, so that water cannot infiltrate downwards.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims at providing a drainage structures and sponge urban water storage system with better drainage ability.

In order to achieve the above object, the present invention provides a water discharge structure comprising a water injection pump and a water injection pipe; the lower end of the water injection pipe extends downwards to a permeable zone below the ground surface; one end of the water injection pump is communicated with the surface accumulated water or the stored water, and the other end of the water injection pump is communicated with the water injection pipe and is used for injecting water into the water permeable layer area through the water injection pipe.

At least one part of the water injection pipe, which is positioned in the water permeable layer area, is a sleeve valve pipe.

The drainage structure further comprises a filtering device for filtering the water injected into the water permeable layer area.

The utility model also provides a sponge city water storage and drainage system, which comprises a water collecting pipe and a water storage pipe; the collector pipe communicate in the retaining pipe for collect leading-in to the retaining intraductal with the rainwater, its characterized in that: the sponge urban water storage system also comprises a water injection pump and a water injection pipe; the lower end of the water injection pipe extends downwards to a permeable zone below the ground surface; the water injection pump one end communicate in inside the water storage pipe, the other end communicate in the water injection pipe for with the retaining in the water storage pipe through the water injection pipe inject into the permeable layer region.

The lower end of the sleeve valve pipe is arranged in a closed mode.

And a liquid level monitoring device is arranged in the water storage pipe.

The sponge urban water storage system further comprises a drainage pump, wherein one end of the drainage pump is communicated with the inside of the water storage pipe, and the other end of the drainage pump is communicated with a municipal water injection pipeline or an irrigation pipeline through a drainage pipe.

The top of the water storage pipe is provided with an overhauling underground cover, an overhauling well outer well casing is arranged above the overhauling underground cover, an overhauling well upper cover covers the upper portion of the overhauling well outer well casing, and the water injection pump is arranged between the overhauling well lower cover and the overhauling underground cover.

The drainage structure further comprises a filtering device for pre-filtering the water injected into the water permeable layer area.

By adopting the technical scheme, the drainage structure and the sponge urban water storage and drainage system can inject accumulated water or stored water into the underground permeable layer through the water injection pipe by the water injection pump, and the permeable layer has stronger water permeability, so that the accumulated water or the stored water can be quickly discharged; in addition, the rainwater is pollution-free, can constitute the replenishment to groundwater after being poured into the permeable bed, helps solving the problem that ground subsides simultaneously.

Drawings

Fig. 1 is the structural schematic diagram of the sponge city water storage and drainage system of the utility model.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in figure 1, the utility model provides a drainage structures and have drainage structures's sponge city retaining drainage system. The sponge urban water storage and drainage system comprises a water collection pipe 1 and a water storage pipe 2; the water collecting pipe 1 is communicated with the water storage pipe 2 and used for collecting and guiding rainwater into the water storage pipe 2. The water storage pipe 2 is arranged below the ground and is of a reinforced concrete structure. The collecting pipe 1 is located below the toilet way 18, the water storage pipe 2 is arranged on one side of the rainwater well 3 of the road, the rainwater well 3 is located beside the trunk road 15, accumulated water enters the collecting pipe 1 after being filtered by the filter screen 16 and enters the water storage pipe after passing through the sedimentation tank 17, and a sedimentation tank well cover is arranged above the sedimentation tank 17. The top of the water storage pipe 2 is provided with an overhauling underground cover 4, an overhauling well outer well casing pipe 5 is arranged above the overhauling underground cover 4, the upper part of the overhauling well outer well casing pipe 5 is covered with an overhauling well upper cover 6, a lawn 7 is paved on the overhauling well upper cover 6, and the lower end of the water storage pipe 2 is provided with a blade foot 21 structure.

The sponge urban water storage system further comprises a drainage structure, wherein the drainage structure comprises a water injection pump 8 and a water injection pipe 9; the lower end of the water injection pipe 9 passes downwards through the impervious layer area below the ground surface and extends to the pervious layer area 100; the water injection pump 8 is a high pressure water pump, one end of which is communicated with the inside of the water storage pipe 2 through an input pipe 18, and the other end of which is communicated with the water injection pipe 9, and is used for injecting the stored water in the water storage pipe 2 into the permeable bed area 100 through the water injection pipe 9. The water injection pump 8 may be disposed between the service manhole cover 4 and the service manhole cover 6.

At least one part of the water injection pipe 9 that is located the regional 100 in permeable bed is sleeve valve pipe 91, the lower extreme of sleeve valve pipe 91 seals the setting, can play the effect of one-way water injection through sleeve valve pipe 91, avoids the reverse osmosis of groundwater, also avoids the regional 100's in earth grit entering water injection pipe 9 in the permeable bed simultaneously.

Be provided with first liquid level monitoring device 10 in the retaining pipe 2, can monitor the liquid level in the retaining pipe 2, when the liquid level was too high in the retaining pipe 2, can open water injection pump 8 automatically and pour into to the underground to the retaining in the retaining pipe 2.

The input pipe is also connected with a filter 14, the filter 14 can filter water, and the water filtered by the filter 14 is injected underground through the water injection pump 8, so that the cleanness of the water quality is ensured, and the water quality meets the injection standard of underground water.

Sponge urban water storage system still includes drain pump 11, drain pump 11 one end communicate in inside the water storage pipe 2, the other end communicates in municipal drainage pipe 12 or irrigation pipe 13 through drain pipe 13, is provided with second liquid level monitoring device 20 in municipal drainage pipe 12.

The water injection pump and the drainage pump can be the same water pump and are connected with the drainage pipe and the water injection pipe through reversing valves.

By adopting the technical scheme, the drainage structure and the sponge city water storage and drainage system can inject accumulated water or stored water into the underground permeable layer area 100 through the water injection pipe 9 by the water injection pump 8, and the permeable layer area 100 has stronger water permeability, so that the accumulated water or the stored water can be quickly discharged; in addition, the rainwater is pollution-free, can constitute the replenishment to groundwater after being poured into the permeable bed, helps solving the problem that ground subsides simultaneously.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A drainage structure characterized by: comprises a water injection pump and a water injection pipe; the lower end of the water injection pipe extends downwards to a permeable zone below the ground surface; one end of the water injection pump is communicated with the surface accumulated water or the stored water, and the other end of the water injection pump is communicated with the water injection pipe and is used for injecting water into the water permeable layer area through the water injection pipe; at least one part of the water injection pipe, which is positioned in the water permeable layer area, is a sleeve valve pipe.

2. The drainage structure of claim 1, wherein: the drainage structure further comprises a filtering device for filtering the water injected into the water permeable layer area.

3. A sponge urban water storage and drainage system comprises a water collecting pipe and a water storage pipe; the collector pipe communicate in the retaining pipe for collect leading-in to the retaining intraductal with the rainwater, its characterized in that: the sponge urban water storage system further comprises a drainage structure, and the drainage structure comprises a water injection pump and a water injection pipe; the lower end of the water injection pipe extends downwards to a permeable zone below the ground surface; one end of the water injection pump is communicated with the inside of the water storage pipe, and the other end of the water injection pump is communicated with the water injection pipe and is used for injecting the stored water in the water storage pipe into the water permeable layer area through the water injection pipe; at least one part of the water injection pipe, which is positioned in the water permeable layer area, is a sleeve valve pipe.

4. The sponge urban impoundment and drainage system of claim 3, characterized in that: the lower end of the sleeve valve pipe is arranged in a closed mode.

5. The sponge urban impoundment and drainage system of claim 3, characterized in that: and a liquid level monitoring device is arranged in the water storage pipe.

6. A sponge urban impoundment and drainage system according to any one of claims 3 to 5, characterized in that: the sponge urban water storage system further comprises a drainage pump, wherein one end of the drainage pump is communicated with the inside of the water storage pipe, and the other end of the drainage pump is communicated with a municipal water injection pipeline or an irrigation pipeline through a drainage pipe.

7. A sponge urban impoundment and drainage system according to any one of claims 3 to 5, characterized in that: the top of the water storage pipe is provided with an overhauling underground cover, an overhauling well outer well casing is arranged above the overhauling underground cover, an overhauling well upper cover covers the upper portion of the overhauling well outer well casing, and the water injection pump is arranged between the overhauling well lower cover and the overhauling underground cover.

8. A sponge urban impoundment and drainage system according to any one of claims 3 to 5, characterized in that: the drainage structure further comprises a filtering device for pre-filtering the water injected into the water permeable layer area.