CN103147482B - A device for flooding groundwater with rainwater on the roof of a high-rise building - Google Patents

Abstract

A high-rise building roof rainwater injection groundwater device relates to the field of groundwater, in particular to a device for converting rainwater into groundwater. People's ability to absorb groundwater is gradually increasing, the water level of groundwater is decreasing year by year, and the ability of soil to resist drought is decreasing day by day. In order to promote the effective pouring of rainwater into the ground, the invention designs a device for pouring rainwater into the groundwater from the roof of a high-rise building. The technical scheme is: there is a water container on the roof of the high-rise building, and the water container holds the collected rainwater; several pipes are connected to the bottom of the water container, and the upper end of the pipe is opened, which is called a water inlet. The height of the water inlet increases in turn, and the pipe is divided into two Section, the connection of the two sections is relatively close to the ground and located above the ground for easy maintenance; the lower end of the pipe is located below the ground, and the lower end of the pipe is open, called the seepage port. The beneficial effect is that the rainwater on the roof reaches the ground through the pipeline, and reaches several to tens of atmospheric pressures, so that the rainwater is soaked into a deep depth below the ground.

Description

A device for flooding groundwater with rainwater on the roof of a high-rise building

technical field

The invention relates to the field of groundwater, in particular to a device for converting rainwater into groundwater.

Background technique

Due to the development of technology, people's ability to absorb groundwater has gradually increased, and the water level of groundwater has decreased year by year, resulting in lower and lower water content in the shallow soil layer, and the ability of soil to resist drought is getting lower and lower.

Few people pay attention to the recharge of groundwater. Of course, the recharge of groundwater is also relatively difficult. The main reason is that the infiltration time is short and the osmotic pressure is small. In my country, precipitation is scarce, and the precipitation time is short and concentrated. Most of the water becomes surface runoff and flows into sewers or rivers. Only a small amount of water can penetrate into the shallow layer of the soil; and under the osmotic pressure of rainwater, the gaps between soil molecules It is small and the infiltration speed is very slow. It can often be seen that there is a rainstorm after a drought. After the rainstorm, when the soil is dug up, only the shallow soil surface is wet. Utility model patent, patent number 200720087511.7, publication number CN201089953Y is the closest prior art.

Contents of the invention

In order to promote effective pouring of rainwater into the ground, the present invention designs a device for pouring rainwater into groundwater from roofs of high-rise buildings.

The technical solution adopted by the present invention to realize the purpose of the invention is: a high-rise building roof rainwater irrigation groundwater device, which is composed of a water container and a pipeline, and is characterized in that: there is a water container on the roof of the high-rise building, and the water container accommodates the collected rainwater , the water inlet end of the water container has a grid net to filter impurities. On the path of rainwater, there is a sedimentation device. The sedimentation device is a ditch. The bottom of the ditch is undulating, and its low-lying position is conducive to sedimentation. , the water container has an overflow port. When the water container is full of water, the excess rainwater is discharged into the sewer from the overflow port; the bottom of the water container is connected to several pipes, and the upper end of the pipe is opened, called the water inlet. The height of the water inlet increases in turn, and the pipes It is a cement pipe or a metal pipe. The pipe is divided into two sections. The connection of the two sections is relatively close to the ground and is located above the ground for easy maintenance.

The connection of the two sections of pipelines is improved into an enlarged U-shaped pipe. There is a sealed opening at the lower end of the U-shaped pipe, which is called the sedimentation well pipe. Opening the sealed opening can clean up the sediment and sediment deposited in the U-shaped pipe. sundries.

The seepage opening is preferably located 50 meters underground. The part of the pipeline located 10 meters below the ground has seepage holes. The diameter of the seepage holes is 2 mm and the interval is 2 cm. From the inside of the pipe to the outside of the pipe, the seepage holes are inclined downward at 45 degrees.

The diameter of the pipeline is 5-10 cm, preferably 5 cm in northern China, and 10 cm in southern China.

The beneficial effects of the present invention are: the height of high-rise buildings is tens to hundreds of meters, and the rainwater on the roof reaches the ground through pipes, which can reach several to dozens of atmospheric pressures. Such a high pressure can make the rainwater soak into the ground At a very deep depth, this part of the rainwater can be effectively poured into groundwater through the pipeline relying on the pressure of the water head; the device is simple, the pipeline is divided into two sections, and the maintenance is convenient. The underground part of the pipeline basically does not need maintenance. It does not affect its perfusion effect; a U-shaped pipe is set at the joint of the two pipes, which is conducive to the deposition of sediment and debris in the U-shaped pipe, and the U-shaped pipe has a sealing port that can be opened, which is conducive to cleaning the sediment accumulated in the U-shaped pipe and sundries, reduce the silt in the underground part of the pipeline, which will affect the filling effect; the seepage hole is inclined at 45 degrees, which can effectively prevent the sediment from entering the pipeline and prolong the service life of the pipeline.

Description of drawings

Fig. 1 is a schematic diagram of a high-rise building roof rainwater injection groundwater device.

Wherein, 1. water container, 2. water inlet, 3. ground, 4. seepage hole, 5. water seepage opening, 6. joint, 7. pipeline sedimentation well, 8. U-shaped pipe.

Detailed ways

There is a water container 1 on the roof of a high-rise building. The water container 1 collects the rainwater on the roof. The water inlet end of the water container 1 has a filter grid for filtering impurities. Can be a ditch, the bottom of the ditch is not flat, but ups and downs, its low-lying position is conducive to depositing silt, the water container 1 has an overflow port, when the water container is full of water, excess rainwater is discharged into the sewer.

Several pipes are connected to the bottom of the water container 1. The opening of the pipes, that is, the water inlet 2, and the water inlet 2 are not at the same level, that is, the water does not enter at the same time. The pipes are cement pipes or metal pipes. The pipes are divided into two sections. The connection between the two sections The place 6 is relatively close to the ground 3 and is located above the ground for easy maintenance; the joint 6 of the two sections of pipelines can be an enlarged U-shaped pipe 8, and the lower end of the "U"-shaped pipe has a sealable opening. That is, the sedimentation well pipeline 7 opens the opening for cleaning the silt and sundries deposited in the U-shaped pipe 8 .

The lower end of the pipeline is located below the ground. According to the present situation of urban groundwater, the lower end of the pipeline is opened, that is, the seepage port 5 is preferably located at 50 meters underground, and the part of the pipeline located at 10 meters below the ground has a water seepage hole 4, and the diameter of the water seepage hole 4 is 2mm. , with an interval of 2cm, from the inside of the pipe to the outside of the pipe, the seepage holes are inclined downward at 45 degrees.

The order of filling is that the low water inlet 2 pipeline is filled first, and then the second, which is beneficial to increase the water pressure of the filling and improve the filling effect; after the low water inlet 2 pipeline is filled, or the rainwater is heavy, the water storage level Ascending, will fill the pipe with the water inlet a little higher.

Claims (4)

1. a high building roofing rainwater perfusion underground water device, formed by water receptacle (1) and pipeline, there is a water receptacle (1) at the roofing of high-rise building, water receptacle (1) holds the rainwater of collecting, the water inlet end of water receptacle (1) has the grid screen of impurity screening, on the path of rainwater process, there is heavy mud device, water receptacle (1) has overfall, when water receptacle holds after full water, unnecessary rainwater enters sewer from overfall, it is characterized in that: water receptacle (1) bottom connects several pipelines, pipeline upper end open, be called water inlet (2), the height of water inlet (2) increases successively, pipeline is pipe of cement or metal tube, and pipeline is divided into two sections, and the junction (6) of two sections is closer apart from ground (3), and is positioned on ground, so that safeguard, lower end of duct is positioned at underground, and lower end of duct opening is called seepage mouth (5).

2. a kind of high building roofing rainwater perfusion underground water device according to claim 1, is characterized in that: heavy mud device is a ditch, and the bottom height in ditch rises and falls, and its low-lying position is beneficial to silt sediment.

3. a kind of high building roofing rainwater perfusion underground water device according to claim 1, it is characterized in that: the junction (6) of two segment pipes is U-shaped pipes (8) that expand, there is the opening of a sealing lower end of U-shaped pipe (8), be called catch-basin pipeline (7), open the opening of sealing, can clear up the silt and the foreign material that are deposited in U-shaped pipe (8).

4. a kind of high building roofing rainwater perfusion underground water device according to claim 1, is characterized in that: the diameter of pipeline is 5-10cm.