CN207727748U - A kind of rainwater energy dissipation tank with processing function - Google Patents

Abstract

The utility model discloses a rainwater energy dissipating pool with processing function, which comprises a pool body (1), the pool body (1) is divided into an energy dissipating pool (2), an overflow tank (3) and a net The grid filter pool (4) has three parts, the energy dissipation pool (1) is connected to the overflow tank (3) through the overflow port on the top of the first partition wall, and the overflow tank (3) is connected to the overflow tank (3) through the overflow port at the bottom of the second partition wall Mesh filter pool (4); rainwater inlet pipe (12) is installed on the side wall of the lower part of the energy dissipation pool (2), and an energy dissipation ladder ( 7), the upper part of the energy dissipation pool (2) is equipped with a sloping plate (8); the upper part of the overflow tank (3) is separated by a large-aperture grid plate (9), and the upper part of the grid filter tank (4) is separated by a small-aperture Mesh panels (10) separate. Compared with the traditional rainwater energy dissipation pool, the utility model not only has the function of reducing the flow velocity of rainwater and buffering, but also has a certain purification effect on the rainwater discharged into rivers.

Description

A rainwater energy dissipation pool with treatment function

technical field

The utility model belongs to the technical field of rainwater purification, and in particular relates to a rainwater energy-dissipating pool with processing function applied to mountainous cities.

Background technique

The slope of the rainwater pipeline in mountainous cities is large, and the water flow velocity at the rainwater outlet is high, which produces strong erosion on the embankment, causing a large amount of inorganic sand and gravel to be carried in the rainwater. Reducing the pollution of surface water system by direct discharge of rainwater and fully and effectively utilizing rainwater resources have become increasingly concerned issues. The existing rainwater energy dissipation pool can only weaken the kinetic energy of rainwater, but has no treatment effect, so direct discharge will pollute the water body.

Utility model content

Aiming at the problems existing in the existing rainwater energy dissipation pool, the technical problem to be solved by the utility model is to provide a rainwater energy dissipation pool with processing function, which realizes the energy dissipation and purification of rainwater in one pool body at the same time through sedimentation and filtration and storage to reduce the point source pollution caused by rainwater discharge to the surface water system.

The technical problem to be solved by the utility model is achieved through such a technical scheme, which includes a pool body, which is divided into three parts: an energy dissipation pool, an overflow tank and a mesh filter pool with a partition wall, and the energy dissipation pool passes through the first The overflow port on the top of the partition wall is connected to the overflow tank, and the overflow tank is connected to the mesh filter pool through the overflow port at the bottom of the second partition wall;

A rainwater inlet pipe is installed on the side wall of the pool body at the lower part of the energy dissipation pool, and an energy dissipation ladder is provided at the bottom corner of the first partition wall opposite to the rainwater inlet pipe. There are inclined plates; the upper part of the overflow tank is separated by a large-aperture grid plate, and the upper part of the mesh filter tank is separated by a small-aperture grid plate. The side wall of the pool above the small-aperture grid plate is equipped with a water outlet. A water outlet is opened on the body wall of the pool.

The technical effect of the utility model is:

The flow rate of rainwater entering the energy dissipation pool is reduced, and the upper part of the energy dissipation pool is equipped with a sloping plate to precipitate and separate impurities such as sediment in the rainwater; the grid plates with apertures from large to small in the overflow tank and grid filter tank During the filtration process, the sediment that is not easy to settle in the rainwater is intercepted by the grid plate. At the same time, after the rainwater has been running for a period of time, layered precipitation will also occur between the adjacent two grid plates due to the gradient of the sediment concentration, thereby further Enhance the separation effect of rainwater and impurities.

Therefore, the utility model has the advantages of realizing the energy dissipation, purification and storage of rainwater in one pool body at the same time, reducing the point source pollution caused by rainwater discharge into the surface water system, and being suitable for urban diversion system drainage systems in mountainous cities. Rainwater terminal treatment and overflow water terminal treatment of interception combined system.

Description of drawings

The accompanying drawings of the utility model are as follows:

Fig. 1 is the schematic diagram of the plane structure of the utility model

Figure 2 is a sectional view of the utility model

In the figure, 1. pool body; 2. energy dissipation pool; 3. overflow tank; 4. mesh filter pool; 5. water outlet; 6. infiltration type substrate; 7. energy dissipation ladder; ; 9. Large-aperture grid plate; 10. Small-aperture grid plate; 11. Outlet tank; 12. Rainwater inlet pipe.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

As shown in Fig. 1 and Fig. 2, the utility model comprises a pool body 1, and the interior of the pool body 1 is divided into three parts: an energy dissipation pool 2, an overflow tank 3 and a mesh filter pool 4, and the energy dissipation pool 1 passes through the first The overflow port on the top of a partition wall is connected to the overflow tank 3, and the overflow tank 3 is connected to the grid filter pool 4 through the overflow port at the bottom of the second partition wall;

The side wall of the lower part of the energy dissipation pool 2 is equipped with a rainwater inlet pipe 12, and the bottom corner of the first partition wall opposite to the rainwater inlet pipe 12 is provided with an energy dissipation ladder 7, and the bottom surface of the energy dissipation pool 2 is an infiltration type substrate 6, The upper part of the energy dissipation pool 2 is placed with a slant plate 8; the upper part of the overflow tank 3 is separated by a large-aperture grid plate 9; Water outlet tank 11 is housed on the side wall of the pool body, and water outlet 5 is arranged on the pool body wall at water outlet tank 11 one ends.

The inclined plate 8 is a counterflow inclined plate, which has the advantages of high sedimentation efficiency and small footprint, and can quickly settle sand and gravel in rainwater. The energy-dissipating ladder 7 is in the form of a reverse ladder (steps increase step by step along the water flow direction), which can make the water flow collide more intensely and have a better energy-dissipating effect; The faster rainwater in the energy pool 2 dissipates energy.

The rainwater initially converging into the energy dissipating pool 2 collides violently under the action of the energy dissipating ladder 7 to fully dissolve oxygen, thereby facilitating the oxidation of organic pollutants in the initial rainfall. The rainwater whose flow velocity has been reduced flows upwards to the sedimentation area of the inclined plate 8, and impurities such as gravel in the rainwater are deposited in the inclined plate 8.

The overflow tank 3 and the grid filter pool 4 are respectively provided with grid plates 9 and 10 whose apertures gradually decrease along the water flow direction to intercept floating or suspended impurities in the rainwater. The function of the overflow tank 3 is mainly to change the flow direction and rectification of the water flow to facilitate the uniform water replenishment of the grid filter tank 4, and the large-aperture grid plate 9 can also play the role of preliminary filtration, thereby reducing the pressure of the small and medium-sized pores of the grid filter tank 4. The mesh panels 10 filter the pond load.

The bottom of the energy dissipation pool 2 is an infiltration substrate 6, and part of the rainwater remaining in the structure after the rainy season can pass through the bottom of the pool, slowly infiltrate into the soil, and replenish groundwater after the infiltration of the soil. The remaining rainwater is stored in the follow-up overflow tank 3 and mesh filter pool 4 for reuse of rainwater resources. The top plate of the pool body 1 is detachable, which is convenient for the installation and cleaning of the inclined plate 8 and the grid plates 9,10.

Compared with the traditional rainwater energy dissipation pool with single function, the utility model not only has the function of reducing the flow rate of rainwater and buffering, but also has a certain purification effect on the rainwater discharged into the river, which is beneficial to the construction of a healthy urban water ecosystem.

Claims (2)

1. A rainwater energy dissipation pool with processing function, including the pool body (1), characterized in that: the pool body (1) is divided into an energy dissipation pool (2), an overflow tank (3) and a net with a partition wall The grid filter pool (4) has three parts, the energy dissipation pool (1) is connected to the overflow tank (3) through the overflow port on the top of the first partition wall, and the overflow tank (3) is connected to the overflow tank (3) through the overflow port at the bottom of the second partition wall grid filter pool(4); A rainwater inlet pipe (12) is installed on the side wall of the lower part of the energy dissipation pool (2), and an energy dissipation ladder (7) is provided at the bottom corner of the first partition wall opposite to the rainwater inlet pipe (12). ) bottom surface is the infiltration substrate (6), and the upper part of the energy dissipation pool (2) is equipped with a sloping plate (8); The upper part of the pool (4) is separated by a small-aperture grid plate (10), the side wall of the pool body above the small-aperture grid plate (10) is equipped with a water outlet tank (11), and the pool body wall at one end of the water outlet tank (11) Have water outlet (5). 2. The rainwater energy dissipation pool with treatment function according to claim 1, characterized in that: the energy dissipation steps (7) rise step by step along the water flow direction.