CN202017223U - Rain collection and permeation recharging device - Google Patents

Abstract

The utility model discloses a rainwater collection osmosis recharge device, which comprises a sedimentation filter tank and at least one osmosis recharge well; There is a water outlet, and the water outlet is connected to the osmotic reinjection well through a water channel, and the well wall at the lower part of the osmotic reinjection well is provided with permeable holes. The utility model has the advantages of simple and practical structure, low manufacturing cost, can properly increase the underground water level by using rainwater penetration and storage, protect the ecological environment, and reduce the pressure of the urban drainage system; Through, in order to achieve the purpose of secondary precipitation.

Description

Rainwater collection infiltration recharge device

technical field

The utility model relates to a rainwater collection device, in particular to a rainwater collection permeation refilling device.

Background technique

my country is a developing country with poor water resources and has been listed by the United Nations as one of the 13 countries with poor water resources. Many cities in our country suffer from severe shortage of water resources, especially in northern cities. Hard land in urban areas has changed the way of natural water circulation, greatly reducing the amount of groundwater formed by natural circulation. At the same time, with the continuous acceleration of urbanization, the water consumption of industrial and agricultural construction and residential water consumption has increased year by year. In recent years, due to the intensive exploitation of groundwater, the amount of groundwater has decreased sharply, the groundwater level has decreased year by year, and the scope of the subsidence funnel has continued to expand. Significant changes have also taken place in the geological structure, and severe land subsidence and fault zones have even appeared in many areas. Due to land subsidence, urban sewage, flood control efficiency is reduced, and buildings are cracked.

As far as the existing urban rainwater drainage facilities are concerned, the layout is not reasonable enough, the facilities are aging and clogged, and do not meet the requirements of modern urban development, and more importantly, the main road culverts, branch pipes and joint pipes of the rainwater drainage facilities all adopt brick-concrete structures , only the discharge function, that is, all the rainwater is directly discharged into the rivers and lakes, and the rainwater resources are not well used to replenish the urban groundwater sources that cannot make ends meet. Underground recharge of rainwater is one of the effective ways to rationally utilize and manage rainwater resources and improve the ecological environment. The research and application of rainwater recharge technology in cities in my country is still in its infancy, and there is still a big gap with social needs.

Utility model content

The purpose of the utility model is to improve the defects of the prior art, and provide a rainwater collection osmosis refilling device. The rainwater collection osmosis recharge device is simple in structure, practical, low in manufacturing cost, and widely used. It can filter the collected rainwater multiple times, and use infiltration to replenish groundwater on the spot.

In order to achieve the above object, the utility model adopts the following technical solutions:

A rainwater collection osmosis recharge device, including a sedimentation filter tank and at least one osmosis recharge well; the upper part of the sedimentation filter tank is provided with a water inlet, the sedimentation filter tank is provided with a filter layer, and the lower part of the filter tank is provided with a water outlet. The water outlet and the permeation reinjection well are connected through water channels, and the well wall at the bottom of the permeation reinjection well is provided with permeation holes.

Further, a rainwater grate is provided at the water inlet of the sedimentation filter tank.

Further, a slit filter is provided at the water outlet of the sedimentation filter tank.

Further, a filter layer is laid on the inner bottom of the trench.

Further, the water channel has a rectangular section.

Further, the plurality of seepage reinjection wells are arranged in a quincunx shape, and the seepage reinjection wells are connected through water channels.

Further, the infiltration and reinjection well adopts sand-free concrete filter pipe or PVC perforated plastic pipe.

Further, the material of the filter layer provided in the sedimentation filter tank and the channel is one or a mixture of two or more of gravel, ceramsite and coarse sand.

The working principle of the utility model is:

The rainwater enters the sedimentation filter tank through the rainwater grate. After being filtered by the filter layer in the sedimentation filter tank, the rainwater flows into the infiltration recharge well through the water channel, and then infiltrates and recharges through the permeation hole set on the wall of the infiltration recharge well. Underground to achieve the purpose of supplementing groundwater.

Compared with existing products, the utility model has the following positive and beneficial effects:

1. The use of rainwater infiltration and storage can properly increase the groundwater level, supplement the conservation of groundwater, effectively control seawater intrusion, land subsidence, etc., and protect the ecological environment.

2. Collecting rainwater on the spot, using it on the spot or replenishing the groundwater after infiltration can effectively reduce the urban stormwater runoff, reduce the total amount of water discharged into the municipal pipe network, and save engineering investment. Delay the time of confluence, reduce the pressure of urban flood control, prevent the occurrence of urban flood disasters caused by insufficient urban drainage facilities, and reduce flood control investment and flood losses.

3. To improve the regional ecological environment, collect rainwater locally to replenish groundwater, which can maintain the water volume of rivers and lakes and effectively improve the regional ecological environment.

4. By laying a filter layer at the bottom of the ditch, the rainwater flow can pass through at a low flow rate to achieve the purpose of secondary precipitation.

5. The structure is simple and practical, the manufacturing cost is low, and the application is extensive. The rainwater can be filtered for many times, and the problem of blockage caused by the aging of the existing facilities is solved.

Description of drawings

Figure 1 is a schematic top view of the overall structure of the utility model.

Fig. 2 is a schematic side view of the overall structure of the utility model.

Fig. 3 is a sectional view of the utility model waterway.

Detailed ways

The specific embodiment of the utility model is described below in conjunction with accompanying drawing.

As shown in Figures 1, 2, and 3, a rainwater collection infiltration recharge device is located under the ground 4, which includes a sedimentation filter tank 1 and a plurality of infiltration recharge wells 2 arranged in a plum blossom shape; the sedimentation filter tank 1. The upper part is provided with a water inlet 11, and the water inlet 11 is covered with a rainwater grate 12. The sedimentation filter tank 1 is provided with a filter layer 13, and the lower part of the filter layer 13 is provided with a water outlet 14. The water outlet 14 is connected to the permeable The reinjection wells 2 are connected through water channels 3, and a plurality of osmotic reinjection wells 2 arranged in a quincunx shape are also respectively connected through water channels 3; the walls of the lower parts of the infiltration reinjection wells 2 are provided with permeable holes twenty one.

The water outlet 14 of the sedimentation filter tank 1 is provided with a slit filter sheet 15;

The infiltration and reinjection well 2 adopts a sandless concrete filter pipe;

A filter layer 31 is laid on the inner bottom of the water channel 3;

The material of the filter layers 13 and 31 provided in the sedimentation filter tank 1 and the waterway 3 is gravel.

Example 2:

The difference between the present embodiment and the embodiment 1 is that the infiltration and reinjection well 2 adopts PVC perforated plastic pipe, and the filter layers 13 and 31 provided in the sedimentation filter tank 1 and the water channel 3 are made of coarse sand.

Example 3:

The difference between this embodiment and Embodiment 1 or 2 is that: the permeation recharge well 2 adopts PVC open-hole plastic pipe, and the filter layer 13, 31 materials provided by the sedimentation filter tank 1 and the water channel 3 are gravel, pottery, etc. A mixture of grain and coarse sand.

To sum up, the embodiment described in this utility model only provides a kind of optimal implementation mode, and the technical content and technical characteristics of this utility model have been disclosed as above, but those who are familiar with this technology may still be based on this utility model. According to the disclosed content, various replacements and modifications are made without departing from the creative spirit of the present invention; The equivalent changes are all covered within the protection scope of the present utility model.

Claims (8)

1. The rainwater collection osmosis recharge device is characterized in that: the recharge device includes a sedimentation filter tank and at least one osmosis recharge well; the upper part of the sedimentation filter tank is provided with a water inlet, and a filter layer is provided in the sedimentation filter tank. The lower part of the filter tank is provided with a water outlet, and the water outlet is connected to the osmotic reinjection well through a water channel, and the well wall of the lower part of the osmotic reinjection well is provided with permeable holes. 2. The rainwater collection and osmosis recharge device according to claim 1, characterized in that: a rainwater grate is provided at the water inlet of the sedimentation filter tank. 3. The rainwater collection and osmosis recharge device according to claim 1, characterized in that: a slit filter is provided at the water outlet of the sedimentation filter tank. 4. The rainwater collection and infiltration refilling device according to claim 1, characterized in that: a filter layer is laid on the inner bottom of the trench. 5. The rainwater collection and osmosis recharge device according to claim 1, characterized in that: the water channel has a rectangular cross-section. 6. The rainwater collection osmotic recharge device according to claim 1, 2, 3, 4 or 5, characterized in that: the plurality of osmotic recharge wells are arranged in a quincunx shape, and the osmotic recharge wells pass through Waterway through connection. 7. The rainwater collection osmosis recharge device according to claim 6, characterized in that: the osmosis recharge well adopts sand-free concrete filter pipe or PVC perforated plastic pipe. 8 . The rainwater collection osmosis recharge device according to claim 7 , wherein the material of the filter layer provided in the sedimentation filter tank and the channel is one of gravel, ceramsite and coarse sand. the

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