CN112012315B - Sponge urban rainwater recycling device - Google Patents

Abstract

The invention relates to the field of water collecting devices, and discloses a rainwater recycling device in a sponge city, comprising a drainage structure and a water storage structure. The drainage structure includes a drainage ditch and a plurality of U-shaped pipes, and the plurality of U-shaped pipes are along the length direction of the drainage ditch. Arranged, both ends of the U-shaped pipe are connected with the drainage ditch; the water storage structure includes a number of water storage tanks and water inlet pipes, the water inlet pipes are connected with the water storage tank and the drainage ditch, and each water storage tank is connected with a water outlet pipe; An annular platform is fixedly connected to the inner peripheral wall of the reservoir, and a filter mesh I is arranged in the reservoir. The filter mesh I is placed on the annular platform, and the filter mesh I is located below the water inlet pipe and above the water outlet pipe. In the present invention, the drainage structure and the water storage structure are used to collect and store rainwater to realize the recycling and utilization of rainwater, and the present invention can solve the problem of inability to drain and store water due to clogging of the drainage ditch.

Description

Sponge city rainwater recycling device

technical field

The invention relates to the field of water collecting devices, in particular to a rainwater recycling device for sponge cities.

Background technique

Sponge city refers to a city that, like a sponge, has good "elasticity" in adapting to environmental changes and responding to natural disasters. It absorbs, stores, seeps, and purifies water when it rains, and releases the stored water when needed. use. At present, the permeable structure of urban roads is generally an open-hole seepage pipe wrapped with a geotextile. Rainwater is filtered by the geotextile and enters the open-hole seepage pipe, and then flows into the drainage ditch through the open-hole seepage pipe, and finally flows into the reservoir or municipal pipe network. .

Among them, the drainage channels are usually set on both sides of the highway, so that the rainwater on the highway will collect and flow into the drainage ditch, and the top of the drainage ditch is open, and a drainage grate is installed at the opening to prevent pedestrians or vehicles from falling into the drainage ditch. However, due to the large drainage gap of the drainage grate, some garbage, such as plastic bags, chewing gum wrapping paper, branches, etc., can enter the drainage ditch through the drainage grate, causing the drainage ditch to be blocked, unable to drain, and even more unable to collect rainwater to achieve water storage.

SUMMARY OF THE INVENTION

The present invention is intended to provide a rainwater recycling device in a sponge city, so as to solve the problem that drainage and water storage functions cannot be realized because the drainage ditch cannot be cleared in time due to clogging.

In order to achieve the above purpose, the present invention adopts the following technical scheme: a sponge city rainwater recycling device, including a drainage structure and a water storage structure, the drainage structure includes a drainage ditch and several U-shaped pipes, and the several U-shaped pipes are along the length direction of the drainage ditch. Arranged, both ends of the U-shaped pipe are connected with the drainage ditch; the water storage structure includes a number of water storage tanks and water inlet pipes, the water inlet pipes are connected with the water storage tank and the drainage ditch, and each water storage tank is connected with a water outlet pipe; An annular platform is fixedly connected to the inner peripheral wall of the reservoir, and a filter mesh I is arranged in the reservoir. The filter mesh I is placed on the annular platform, and the filter mesh I is located below the water inlet pipe and above the water outlet pipe.

The principle and advantages of this scheme are: in practical application, after the rainwater flows into the drainage ditch, it flows into the reservoir through the water inlet pipe for storage, and can be used by people when needed. In addition, since the water inlet pipe is located above the filter screen I, and the water outlet pipe is located below the filter screen I, the water resources in the reservoir are first filtered by the filter screen I and then discharged through the water outlet pipe for use, which can be directly used by people. It is used for watering flowers, trees, lawns, etc., and realizes the recycling of rainwater.

Not only that, in this scheme, since there are several U-shaped pipes connected in the length direction of the drainage ditch, when the drainage ditch is blocked, the rainwater collected in the drainage ditch gradually increases, and the water level gradually rises. When the water level rises to the U-shaped pipe Rainwater can flow into the U-shaped pipe, and then flow back into the drainage ditch through the other end of the U-shaped pipe, thereby bypassing the blocked part of the drainage ditch and avoiding the problem of inability to drain and store water due to clogging of the drainage ditch.

Preferably, as an improvement, the drainage structure further includes a retaining wall arranged on the side of the sidewalk, a permeable wall is buried under the retaining wall, the drainage ditch is located on the side of the permeable wall away from the sidewalk, and the U-shaped pipe embedded in the permeable wall; the retaining wall is provided with a vertically arranged channel, the bottom end of the channel is communicated with the drainage ditch, a filter plate is arranged in the channel, the bottom end of the filter plate is in contact with the bottom wall of the drainage ditch, and the filter plate A side wall of the bottom facing the permeable wall is provided with a concave portion, and a side wall of the concave portion away from the permeable wall is provided with a filter port, a filter mesh II is fixedly connected in the filter port, and a side wall of the concave portion away from the permeable wall is fixedly connected with a filter. layer, the filter layer covers the filter mesh II.

In this scheme, the rainwater on the sidewalk penetrates downwards and then penetrates into the drainage ditch through the permeable wall. During this process, the filter layer and filter screen II on the filter board will filter the rainwater and intercept the sand and gravel from the direction of the permeable wall. Avoid sand and gravel entering the drain. In addition, the intercepted sand and gravel are accumulated on the bottom wall of the depression. When the filter plate needs to be regularly maintained or the filter layer needs to be replaced, the maintenance personnel take out the filter plate, maintain the filter plate or replace the filter layer, so that the rainwater on the sidewalk can be smoothly drained into the drainage ditch to avoid water accumulation on the sidewalk, and Simple and convenient operation. At the same time, the sand and gravel on the bottom wall of the depression will be brought out to avoid the accumulation of sand and gravel in the drainage ditch. In addition, since the U-shaped pipe is embedded in the permeable wall, and both ends of the U-shaped pipe are connected to the drainage ditch, that is, the end of the U-shaped pipe is located on the side of the concave part facing the permeable wall, at this time, the filter layer and the filter mesh II It will intercept the garbage in the drainage ditch to prevent the garbage from clogging the U-shaped pipe, so that the U-shaped pipe can function smoothly.

Preferably, as an improvement, a thin plate is fixedly connected to the bottom wall of the concave portion, and the thin plate forms a receiving groove with the side wall and the bottom wall of the concave portion.

In this solution, the sand and gravel intercepted by the filter layer and the filter screen are accumulated in the accommodating tank, and the sand and gravel are not easy to fall off during the upward movement of the filter plate.

Preferably, as an improvement, the ends of the U-shaped pipes are each provided with a number of water through holes.

In this solution, when the drainage ditch is blocked, and at the same time, when the end of the U-shaped pipe (water inlet) is blocked, the rainwater in the drainage ditch can enter the U-shaped pipe through the water hole on the end of the U-shaped pipe, so that the The rainwater smoothly bypasses the blocked part of the drain.

Preferably, as an improvement, a plurality of the U-shaped pipes are arranged staggered along the length direction of the drainage ditch.

In this scheme, when the U-shaped pipes are staggered along the length of the drainage ditch, the projection of the U-shaped pipes in the vertical direction has overlapping parts, that is, the connection between the front end of the latter U-shaped pipe and the drainage ditch is located in the former U-shaped pipe. The front of the connection between the rear end of the pipe and the drain. In this way, when the end of a U-shaped pipe is blocked by garbage, rainwater can flow away through the previous or subsequent U-shaped pipe of the U-shaped pipe, thereby reducing the possibility of failure of the U-shaped pipe.

Preferably, as an improvement, the outer periphery of the reservoir is provided with a protective fence, the edge of the filter net I is fixedly connected with a number of pull ropes, and the end of the pull rope away from the filter net I is fixedly connected to the protective fence.

In this scheme, the staff can raise the filter net I by pulling the pull rope, so that the garbage in the reservoir is intercepted on the filter net I, which is convenient for the staff to dispose of the garbage in the reservoir.

Preferably, as an improvement, a reinforcing member is fixedly connected to the bottom of the filter screen I.

In this solution, the reinforcement at the bottom of the filter mesh I can strengthen the strength of the filter mesh I, thereby prolonging the service life of the filter mesh I.

Preferably, as an improvement, a winding roller and a winding rope are arranged above the reservoir, both ends of the winding roller are rotatably connected to the guardrail, and the top end of the winding rope is fixedly connected to the winding roller, The ends of the several pulling ropes away from the filter net I are all fixedly connected with the bottom end of the winding rope, and the winding rope coincides with the vertical central axis of the filter net I.

In this scheme, the staff can use the motor to drive the winding roller to rotate, so that the winding rope is wound on the winding roller, so that the filter mesh I is raised, and the staff can not manually pull the rope to make the filter mesh I higher. Reduce the workload of staff.

Preferably, as an improvement, a vertically arranged annular baffle is fixedly connected to the edge of the filter screen I.

In this solution, when the filter screen I is inclined, the annular baffle can prevent the garbage on the filter screen I from slipping into the reservoir.

Preferably, as an improvement, several of the water reservoirs are communicated through a water conduit, and the water conduit is located below the filter screen I.

In this solution, when the reservoirs are connected through a conduit, after a reservoir is full of water, rainwater can flow into other reservoirs through the conduit, thereby preventing the water in the reservoir from overflowing.

Description of drawings

Fig. 1 is the structural representation of the rainwater recycling device in sponge city in the first embodiment of the present invention;

Figure 2 is a partial top view of the drainage ditch and U-shaped pipe in Figure 1;

Fig. 3 is the right side view of Fig. 2;

Fig. 4 is the top view when a single U-shaped pipe is communicated with the drainage ditch in the first embodiment of the present invention;

Fig. 5 is the enlarged schematic diagram of A in Fig. 1;

FIG. 6 is a schematic structural diagram of a rainwater recycling device in a sponge city in Embodiment 2 of the present invention.

Detailed ways

The following is further described in detail by specific embodiments:

Reference numerals in the accompanying drawings include: drainage ditch 1, U-shaped pipe 2, sidewalk 3, gravel layer 301, gravel layer 302, brick layer 303, retaining wall 4, permeable wall 5, water hole 6, filter Plate 7, recessed part 8, filter screen II9, filter layer 10, thin plate 11, holding tank 12, waterproof layer 13, reservoir 14, water inlet pipe 15, water outlet pipe 16, annular table 17, filter screen I18, reinforcement 19 , water conduit 20 , guardrail 21 , annular baffle 22 , rope 23 , winding roller 24 , winding rope 25 , drainage grate 26 .

Example 1

This embodiment is basically as shown in Figure 1: the rainwater recycling and utilization device in the sponge city includes a drainage structure and a water storage structure. The drainage structure includes a drainage ditch 1 and a number of U-shaped pipes 2, and also includes a retaining wall 4 poured on the side of the sidewalk 3, a permeable wall 5 is poured below the retaining wall 4, and the drainage ditch 1 is located at a distance of the permeable wall 5 away from the sidewalk 3. side. As shown in FIG. 2 and FIG. 3 , several U-shaped pipes 2 are staggered along the length direction of the drainage ditch 1 . As shown in FIG. 4 , both ends of the U-shaped pipe 2 are connected to the drainage ditch 1, and the end of the U-shaped pipe 2 extends into the drainage ditch 1, and the ends of the U-shaped pipe 2 are provided with a number of water holes. 6. In this embodiment, the U-shaped pipe 2 is located on the side of the drainage ditch 1 away from the permeable wall 5 .

The retaining wall 4 is provided with a channel arranged vertically, and the bottom end of the channel communicates with the drainage ditch 1 . A filter plate 7 is arranged in the channel, and the bottom end of the filter plate 7 is in contact with the bottom wall of the drainage ditch 1. In this embodiment, the filter plate 7 is a stainless steel plate, which has a long service life. The bottom of the filter plate 7 faces a side wall (left side wall) of the permeable wall 5 and is provided with a concave portion 8, and a side wall (right side wall) of the concave portion 8 away from the permeable wall 5 is provided with a filter port, as shown in FIG. 5 , a filter mesh II9 is fixedly connected in the filter port, and a filter layer 10 is fixedly connected to the side wall (right side wall) of the concave portion 8 away from the permeable wall 5, and the filter layer 10 covers the filter mesh II9. In this embodiment, the filter screen II9 is a stainless steel filter screen, and the filter layer 10 is a geotextile. A thin plate 11 is fixedly connected to the bottom wall of the concave portion 8 , and the thin plate 11 and the side wall and bottom wall of the concave portion 8 form a receiving groove 12 .

The above-mentioned sidewalk 3 includes a gravel layer 301, a crushed stone layer 302 and a face brick layer 303 laid in order from bottom to top, and the face brick layer 303 includes several arrays of face bricks. A waterproof layer 13 is laid on the bottom surface of the gravel layer 301 , and the waterproof layer 13 passes through the bottom of the permeable wall 5 and is laid on the bottom wall of the drainage ditch 1 . In this embodiment, the waterproof layer 13 can be made of water-impermeable plastic, and the plastic is not easily decomposed by microorganisms and has a long service life.

The water storage structure includes several water storage tanks 14 and water inlet pipes 15 , and the water inlet pipes 15 are connected to the water storage tanks 14 and the drainage ditch 1 . In this embodiment, the reservoir 14 is formed by digging a groove downward on the ground. Each reservoir 14 is communicated with a water outlet pipe 16 , and a one-way valve (not shown) for leading water out of the reservoir 14 is installed on the outlet pipe 16 . An annular platform 17 is fixedly connected to the inner peripheral wall of the reservoir 14, and a filter screen I18 is arranged in the reservoir 14. above. The upper surface of the filter screen I18 is covered with geotextiles, and the bottom of the filter screen I18 is welded with a reinforcing member 19. In this embodiment, the reinforcing member 19 is a reinforcing rib. Several water reservoirs 14 are communicated with each other through a water conduit 20, and the water conduit 20 is located below the filter screen I18.

A guard rail 21 is fixedly installed on the outer periphery of the reservoir 14 to prevent people or animals from falling into the reservoir 14 . The edge of the filter screen I18 is fixedly connected with an annular baffle 22 and several pulling ropes 23. The annular baffle 22 is arranged vertically, so as to prevent the garbage in the filter screen I18 from sliding down into the reservoir 14 when the filter screen I18 is raised. In this embodiment, the number of the pulling ropes 23 is four, and the four pulling ropes 23 are evenly distributed along the circumference of the filter net I18. The upper part of the reservoir 14 is provided with a winding roller 24 and a winding rope 25. The two ends of the winding roller 24 are connected to the guardrail 21 through the rotation of bearings, and the top end of the winding rope 25 is fixedly connected to the winding roller 24. Four The end of the pulling rope 23 away from the filter screen I18 is gathered at the bottom end of the winding rope 25 and is fixedly connected with the bottom end of the winding rope 25. The winding rope 25 coincides with the vertical center axis of the filter screen I18.

The specific implementation process is as follows: when it rains, the rainwater on the sidewalk 3 penetrates down to the gravel layer 301, because the waterproof layer 13 is below the gravel layer 301, therefore, the rainwater can no longer continue to infiltrate downward, but infiltrate the permeable wall to the right 5, and after being filtered by the filter layer 10 and the filter screen II9 on the filter plate 7, it flows into the drainage ditch 1, so as to realize the seepage and drainage of the rainwater on the sidewalk 3.

When the filter plate 7 needs to be regularly maintained or the filter layer 10 needs to be replaced, the maintenance personnel can directly take out the filter plate 7 upward, and then maintain the filter plate 7 or replace the filter layer 10 on the filter plate 7 with a new geotextile, Finally, the filter plate 7 can be inserted back into the channel, and the operation is convenient. In addition, when the rainwater from the sidewalk 3 enters the drainage ditch 1 , the sand and gravel intercepted by the filter layer 10 and the filter screen II9 accumulate in the accommodating tank 12 . When the maintenance personnel take out the filter plate 7, the part of the sand and gravel can be taken out of the drainage ditch 1 to reduce the amount of sand and gravel in the drainage ditch 1, killing two birds with one stone.

At the same time, the rainwater on the highway converges to the roadside, flows into the drainage ditch 1 through the drainage grate 26 , and flows into the reservoir 14 through the water inlet pipe 15 together with the rainwater from the sidewalk 3 . At this time, since the filter screen I18 in the water storage tank 14 is located below the water inlet pipe 15, the rainwater flowing into the water storage tank 14 is filtered by the filter screen I18 and flows to the bottom of the water storage tank 14, thereby realizing the storage of rainwater. live.

When the rainwater on the road flows into the drainage ditch 1 through the drainage grate 26 after the confluence, since the drainage gap of the drainage grate 26 is large, garbage may be brought into the drainage ditch 1, such as plastic bags, chewing gum wrapping paper , branches, etc. Therefore, the drainage ditch 1 may be blocked by garbage, so that the rainwater cannot flow into the water storage tank 14 . In this embodiment, when the drainage ditch 1 is blocked, the rainwater continuously flows into the drainage ditch 1, and the water level in the drainage ditch 1 rises until the rainwater can flow into the U-shaped pipe 2. Therefore, the rainwater flows from the U-shaped pipe 2. One end of the U-shaped pipe 2 flows into the U-shaped pipe 2, and then flows back into the drainage ditch 1 from the other end of the U-shaped pipe 2, thereby bypassing the blocked part of the drainage ditch 1, realizing the drainage of rainwater, so that the rainwater smoothly flows into the reservoir 14 for storage. To avoid the failure of drainage and water storage due to clogging of the drainage ditch 1.

When people need to use the water resources in the reservoir 14, the water inlet end of the pump can be connected to the water outlet pipe 16, and the pump can be started, and the water resources in the reservoir 14 can be pumped out for watering flowers and trees, Grassland, etc., to realize the recycling of rainwater. In addition, since the water outlet pipe 16 is located below the filter screen I18, the water resources discharged through the water outlet pipe 16 are relatively clean, and there will be no waste such as plastic flowing into the water outlet pipe 16 to cause damage to the pump.

In addition, when people need to clean the reservoir 14, the output end of the motor can be connected to the winding roller 24, and the motor can be started, so that the motor drives the winding roller 24 to rotate, and the winding rope 25 is wound on the winding roller 24. Drive the pulling rope 23 to move upward, thereby driving the filter mesh I18 to move upward, and make the filter mesh I18 move up to the top of the water surface, so as to intercept all the garbage in the water on the filter mesh I18, so that the staff can clean it up and reduce the cleaning and storage of the staff. The workload of the pool 14 improves the cleaning efficiency of the pool 14 .

Embodiment 2

The difference between this embodiment and the first embodiment is that, as shown in FIG. 6 , in this embodiment, the U-shaped pipe 2 is embedded in the permeable wall 5 , and the U-shaped pipe 2 can extend into the gravel layer 301 . Both ends of the U-shaped pipe 2 are located in the drainage ditch 1 to the left of the filter plate 7 .

In this embodiment, since the two ends of the U-shaped pipe 2 are located in the drainage ditch 1 to the left of the filter plate 7, under the protection of the filter screen II9 and the filter layer 10, the ends of the U-shaped pipe 2 will not be damaged. If the garbage is blocked, the function of the U-shaped pipe 2 will be ensured.

The above are only examples of the present invention, and common knowledge such as well-known specific technical solutions and/or characteristics in the solutions are not described too much here. It should be pointed out that for those skilled in the art, some modifications and improvements can be made without departing from the technical solution of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation of the present invention. effect and the applicability of the patent. The scope of protection claimed in this application shall be based on the content of the claims, and the descriptions of the specific implementation manners in the description can be used to interpret the content of the claims.

Claims (9)

1. Sponge city rainwater recycling device, including drainage structure and water storage structure, is characterized in that: described drainage structure comprises drainage ditch and some U-shaped pipes, and some U-shaped pipes are arranged along the length direction of the drainage ditch, and the Both ends are communicated with the drainage ditch, and a plurality of the U-shaped pipes are arranged staggered along the length direction of the drainage ditch; the water storage structure includes a plurality of water storage tanks and water inlet pipes, and the water inlet pipes are connected to the water storage tank and the drainage ditch. A water outlet pipe is communicated with the water pool; an annular platform is fixedly connected to the inner peripheral wall of the water reservoir, and a filter screen I is arranged in the water reservoir. above the outlet pipe. 2. The rainwater recycling device in sponge city according to claim 1, characterized in that: the drainage structure further comprises a retaining wall arranged on the side of the sidewalk, a permeable wall is buried under the retaining wall, and the drainage ditch is located in the permeable wall. The side of the wall away from the sidewalk, the U-shaped pipe is embedded in the permeable wall; the retaining wall is provided with a channel arranged vertically, the bottom end of the channel is communicated with the drainage ditch, and a filter plate is arranged in the channel, and the The bottom end is in contact with the bottom wall of the drainage ditch, the bottom of the filter plate is provided with a concave portion on one side wall facing the permeable wall, and the side wall of the concave portion away from the permeable wall is provided with a filter port, and a filter mesh II is fixedly connected in the filter port, and the concave portion is A filter layer is fixedly connected to one side wall away from the permeable wall, and the filter layer covers the filter screen II. 3 . The rainwater recycling device for sponge city according to claim 2 , wherein a thin plate is fixedly connected to the bottom wall of the concave portion, and the thin plate forms a receiving groove with the side wall and bottom wall of the concave portion. 4 . 4. The rainwater recycling device for sponge city according to claim 1 or 3, characterized in that: the ends of the U-shaped pipes are all provided with a plurality of water holes. 5. The rainwater recycling device for sponge city according to claim 4, characterized in that: the outer periphery of the reservoir is provided with a protective fence, the edge of the filter mesh I is fixedly connected with a number of pull ropes, and the pull ropes are far away from the filter One end of the net I is fixedly connected to the guardrail. 6 . The rainwater recycling device for sponge city according to claim 5 , wherein the bottom of the filter screen I is fixedly connected with a reinforcing member. 7 . 7 . The rainwater recycling device for sponge city according to claim 6 , wherein a winding roller and a winding rope are arranged above the reservoir, and both ends of the winding roller are rotatably connected to the guardrail, 8 . The top end of the winding rope is fixedly connected with the winding roller, and the ends of several pulling ropes away from the filter mesh I are fixedly connected with the bottom end of the winding rope, and the winding rope is coincident with the vertical axis of the filter mesh I. 8 . The rainwater recycling device for sponge city according to claim 7 , wherein a vertically arranged annular baffle is fixedly connected to the edge of the filter screen I. 9 . 9 . The rainwater recovery and utilization device for a sponge city according to claim 8 , wherein several of the reservoirs are connected through a conduit, and the conduit is located below the filter screen I. 10 .

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