CN104179240A - Rainwater infiltration well - Google Patents

Abstract

The invention relates to a rainwater infiltration well which comprises a shaft, a sewage interception basket and a stabilizing seat, wherein a water outlet and a water inlet are arranged on two sides of the shaft, the water outlet is positioned at the upper part of the shaft, the height of the water inlet is lower than that of the water outlet, infiltration holes are formed in the positions, around the shaft, lower than the water inlet, of the shaft, the sewage interception basket is arranged at the opening of the shaft, filter holes are formed in the periphery of the sewage interception basket, a well cover is arranged at the top end of the sewage interception basket, and a drain hole is formed in the well cover. When rainwater enters the shaft, the rainwater permeates into a mud layer around the shaft from the permeation holes around the shaft under the action of water pressure, so that the content of water in the mud is increased, the growth of plants is facilitated, the rainwater amount entering the municipal drainage pipeline is reduced, and the pressure of the municipal drainage pipeline is reduced.

Description

stormwater infiltration well

technical field

The invention relates to a rainwater treatment device, in particular to a rainwater infiltration well.

Background technique

With the continuous development of urbanization, the impermeable area is increasing day by day. As the rain falls, dissolved gases, dissolved or suspended solids, heavy metals and bacteria in the air will enter it, and the pollutants in the surface runoff will play a leading role. From the scouring of rainfall on the surface, the surface sediments include many pollutants, including solid waste, debris, chemicals, vehicle emissions, etc. A large amount of rainwater runoff is directly discharged without being used, which not only causes a huge waste of water, but also Increased the burden on urban drainage facilities. Therefore, proper treatment of rainwater can not only save water sources, but also reduce the burden on urban drainage facilities.

CN103572827A (published on February 12, 2014) discloses a novel rainwater sedimentation and filtration shaft, including a well cover, a well shaft, a well bottom, a replaceable rainwater sewage interception hanging basket arranged in the well shaft and pipes arranged on both sides. The filter screen of the card is a new type of rainwater sedimentation filter well that integrates sedimentation and filtration. Rainwater enters the well through the collection pipe, and large debris will be deposited in the rainwater interception basket. Secondary separation is carried out from the floating objects, the rainwater is filtered, and then enters the water storage tank through the outlet water collection pipe. The automatic filter well of the present invention can precipitate and filter the rainwater collected by the collection pipe, and collect rainwater with better water quality into the storage tank. The automatic filter well can reduce the sand content of the rainwater in the subsequent rainwater pipe and reduce the storage of subsequent rainwater Treat the content of rainwater pollutants in the facility and improve the cleanliness of rainwater.

Although the above-mentioned prior art discloses a rainwater sedimentation and filtration shaft, which can meet certain needs, there are still certain defects: the invention only precipitates and filters rainwater to reduce the content of rainwater pollutants in subsequent rainwater storage and treatment facilities , improve the cleanliness of rainwater, and then collect the treated rainwater into the storage tank, or flow into the municipal drainage pipe through pipes. However, it is collected in the storage tank, which requires an additional storage tank, which increases the cost of use; flowing into the municipal drainage pipeline increases the drainage pressure of the municipal drainage pipeline, which is not conducive to the safe operation of the municipal drainage pipeline, and this rainwater sedimentation filter It is troublesome to clean up after the shaft is blocked.

Therefore, there is still a further demand for the rainwater treatment device, which is also one of the research hotspots and priorities in this technical field, and it is the driving force and starting point for the completion of the present invention.

Contents of the invention

In order to overcome the technical problems in the prior art that the treated rainwater is collected into the storage tank to increase the cost of use, the treated rainwater flows into the municipal drainage pipes, the drainage pressure of the municipal drainage pipes is increased, and the technical problems of cleaning after clogging are troublesome, the inventors The present invention has thus been accomplished after conducting extensive intensive research.

The present invention is achieved through the following technical proposals. A rainwater infiltration well includes a well shaft, a sewage intercepting basket and a stable seat. The top end of the well shaft is open and the bottom end is closed. Both sides of the well shaft are provided with water outlets and water inlets. The water outlet is located on the upper part of the well shaft, the height of the water inlet is lower than the height of the water outlet, the stable seat is fixedly arranged at the bottom of the well shaft, and the circumference of the well shaft is lower than the water inlet. Permeation holes are set at the position of the dirt intercepting basket, the dirt intercepting basket is arranged at the opening of the shaft, filter holes are arranged around the dirt intercepting basket, a well cover is provided on the top of the dirt intercepting basket, and a running water is provided on the well cover hole.

Preferably, the outer wall of the wellbore is provided with transverse well ribs, whose main function is to fully connect with the surrounding backfill medium, and effectively disperse the road surface pressure to the surrounding medium, thereby reducing the road surface pressure and the unevenness of the soil layer. The damage caused by uniform settlement to the wellbore.

Preferably, vertical well ribs are provided on the outer wall around the shaft, the main function is to serve as an effective support for the horizontal well ribs, so that the horizontal well ribs can be stronger and can withstand more pressure, and it is also possible to separately increase the vertical strength of the well shaft in the vertical direction. The compression resistance prevents the wellbore from deforming under the influence of road pressure.

Compared with the prior art, the beneficial effects of the present invention are as follows: the position of the water outlet of the present invention is higher and higher than that of the water inlet. When the rainwater enters the wellbore from the water inlet or the well cover, it is easy to form water pressure. Under the action of water pressure, it penetrates into the soil layer around the well shaft from the seepage holes around the well shaft, which not only increases the moisture content in the soil, which is beneficial to the growth of plants, but also reduces the amount of rainwater entering the municipal drainage pipes, reducing the municipal rainwater drainage. At the same time, the structure of the invention is simple, no additional storage tank is required, and the cost is low. In addition, the dirt intercepting basket can be directly taken out from the well cover for cleaning, and can also be opened from the well cover to clean the inside of the wellbore. It is convenient and can be widely used in the field of rainwater treatment.

Description of drawings

Other characteristics, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

Fig. 1 is a structural representation of the present invention;

FIG. 2 is a schematic top view of the structure shown in FIG. 1 .

In the figure, 1 is the water outlet, 2 is the intercepting basket, 3 is the filter hole, 4 is the well cover, 5 is the water hole, 6 is the shaft, 7 is the vertical well rib, 8 is the water inlet, 9 is the horizontal well rib, 10 For penetration hole, 11 is a stable seat.

Detailed ways

The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

Example 1

A rainwater infiltration well as shown in Fig. 1 and Fig. 2 includes a shaft 6, a sewage intercepting basket 2 and a stable seat 11, the top of the shaft 6 is open and the bottom is closed, and both sides of the shaft 6 are provided with a water outlet 1 and an inlet. Water port 8, the water outlet is located at the upper part of the well shaft, and when the rainwater in the infiltration well is poured to a certain high water level, it will overflow through this water outlet, so that it will not emerge from the well cover due to too much internal rainwater, and the water inlet is located at the middle and lower part of the well shaft. The rainwater in the rainwater well flows into the infiltration well to infiltrate, the height of the water inlet 8 is lower than the height of the water outlet 1, so that the rainwater in the wellbore of the infiltration well has a certain hydraulic pressure, and the stable seat 11 is fixedly arranged at the bottom of the wellbore 6. Permeable holes 10 are provided at the bottom and surrounding walls of the well below the water inlet 8. The pore size of the permeable holes 10 is sufficient for water to flow through. The rainwater in the permeable well slowly permeates to the The surrounding underground soil layer, the sewage intercepting basket 2 is arranged at the opening of the well shaft 6, and the surrounding of the sewage intercepting basket 2 is provided with filter holes 3, and the sewage intercepting basket 2 is used to filter the rainwater flowing down through the manhole cover above to remove the rainwater in the rainwater. For the small impurities of dead branches and leaves, the top of the intercepting basket is provided with a well cover 4, and the well cover 4 is provided with a water hole 5. The size of the water hole 5 is sufficient to intercept large impurities such as leaves and dead branches outside. When it rains, the rainwater Flow into the well 6 through the well cover, and the dirt intercepting basket 2 can be directly taken out from the well cover for cleaning, while the bottom of the well can be designed as an arc, which is convenient for cleaning impurities inside the shaft after opening the well cover from above.

The working principle and mode of operation of the present invention: rainwater enters the inside of the wellbore through the water inlet (rainwater is collected through the rainwater well in advance) or rainwater directly enters the infiltration well through the well cover and the waste intercepting basket. Because the position of the water outlet is relatively high, the rainwater is easy to flow out and infiltrate Before the well, it is easy to form water pressure in the infiltration well, and then the rainwater in the infiltration well slowly infiltrates into the surrounding underground soil layer under the action of its own water pressure, which not only increases the water content in the soil, is beneficial to the growth of plants, but also reduces The amount of rainwater entering the municipal drainage pipe is reduced, and the pressure of the municipal rainwater drainage pipe is reduced. At the same time, the invention has a simple structure, does not need an additional storage tank, has low cost, and can be widely used in the field of rainwater treatment.

Example 2

The difference between this embodiment and Embodiment 1 is that the outer wall of the wellbore 6 is provided with horizontal well ribs 9 and vertical well ribs 7. Dispersed and transmitted to the surrounding medium, thereby reducing the damage caused by the road surface pressure and uneven settlement of the soil layer to the wellbore 6, that is, the horizontal well rib 9 can be used as a pressure rib; the main function of the vertical well rib 7 is that it can be used as a horizontal well rib 9 The effective support of the horizontal well rib 9 can make the horizontal well rib 9 stronger and can withstand more pressure, and can also increase the compression resistance of the wellbore in the vertical direction alone to prevent the wellbore from being deformed under the influence of the road pressure.

Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention.

Claims (3)

1. a kind of rainwater infiltration well is characterized in that, comprises well shaft (6), dirt intercepting basket (2) and stable seat (11), and the top opening of described well shaft (6), the bottom end is closed, and described well shaft (6) ) are provided with a water outlet (1) and a water inlet (8), the water outlet (1) is located at the top of the shaft (6), and the height of the water inlet (8) is lower than that of the water outlet (1), the stable seat (11) is fixedly arranged at the bottom of the well shaft (6), and permeation holes ( 10), the dirt intercepting basket (2) is arranged at the opening of the shaft (6), and filter holes (3) are arranged around the dirt intercepting basket (2), and the dirt intercepting basket (2) A manhole cover (4) is arranged at the top, and the manhole cover (4) is provided with a water flow hole (5). 2. A rainwater infiltration well according to claim 1, characterized in that, the outer walls around the shaft (6) are provided with transverse well ribs (9). 3. A rainwater infiltration well according to claim 1 or 2, characterized in that vertical well ribs (7) are provided on the outer walls around the shaft (6).