CN209585257U - A kind of sponge urban rainwater recovery system - Google Patents

Abstract

The utility model discloses a sponge city rainwater recovery system, which belongs to the field of municipal engineering. It is located in the soil layer and the top is flush with the soil layer. There is a permeable hole at the top end of the purification box, and a number of first partitions and second partitions are arranged in the interior from the side of the permeable hole to the other side, so that the rainwater flows through the purification box. The inside can only flow along the S-shaped line in the vertical direction, which slows down the water flow speed and allows the sediment to settle to the bottom of the purification box by itself. The purification effect is good and the purification efficiency is high, and the sediment in the purification box can be cleaned centrally , convenient and fast; the rainwater purified by the purification box is imported into the water storage tank for temporary storage, and the rainwater can be exported and reused by using the reuse pipe, water pump and rainwater reuse pipe for irrigation of green plants, etc., which has played a full role Use of water resources.

Description

A Sponge City Rainwater Recovery System

technical field

The utility model belongs to the field of municipal engineering, and more specifically relates to a rainwater recovery system for a sponge city.

Background technique

Sponge city is a new generation of urban stormwater management concept, which can also be called "water elastic city". Sponge city technology is used to absorb, store, infiltrate, and purify water when it rains, and "release" the stored water when it is needed and use it. The rainwater recovery system is an important part of the sponge city system.

The existing authorized notification number is CN20612858U Chinese patent discloses a rainwater recycling system for gardens and green spaces, rainwater runoff rainwater recovery wells, rainwater recovery pipes, seepage wells, water storage devices, water pumps, rainwater reuse pipes, which can be recycled .

However, in this system, the infiltration well is buried in the green space and is equipped with a filter device for filtering rainwater. When the rainfall is heavy, a large amount of rainwater mixed with gravel and sediment will flow into the infiltration well in a short period of time, which is very easy. Cause blockage at the filter device in the seepage well. And because the infiltration well is buried in the green space, it is extremely inconvenient to clear and dredge the filtering device in the infiltration well. Because, it is necessary to further improve the rainwater recovery system.

Utility model content

Aiming at the deficiencies in the prior art, the purpose of this utility model is to provide a sponge city rainwater recovery system, which has the advantages of simple construction and easy cleaning.

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

A sponge city rainwater recovery system, including a purification tank, a water storage tank, an aqueduct, a reuse pipe, a water pump and a rainwater reuse pipe; The layers are flush; the top of the purification box and one end located in the length direction of the purification box are provided with a number of permeable holes for rainwater to flow in; a number of first and second partitions parallel to each other are arranged in the purification box; The first partition and the second partition are all along the width direction of the purification box, and are all perpendicular to the inner top wall of the purification box; the top of the first partition is fixed on the inner top wall of the purification box, and the bottom is connected to the inner top wall of the purification box There is a gap between the bottom walls; the second partition is staggered between two adjacent first partitions, and there is a gap between the top of the second partition and the inner top wall of the purification box, and the bottom and the purification box The inner bottom wall is fixedly connected; one end of the water guide pipe is connected to the water storage tank, and the other end is connected to the purification tank, and the connection between the water guide pipe and the purification tank is located on the inner bottom wall of the end of the purification tank away from the water hole; the water storage The tank is embedded in the soil layer, and the top wall of the water storage tank is lower than the bottom wall of the purification tank; a pressure balance device is connected to the water storage tank; one end of the recycling pipe is inserted into the water storage tank, and the other end is connected to the The water inlet end of the water pump is connected; the rainwater reuse pipe is connected with the water outlet end of the water pump.

By adopting the above technical scheme, when it rains, the ground rainwater flows into the purification box from the permeable hole of the purification box. Due to the existence of the first partition and the second partition, the rainwater can only be guided in the purification box due to the end of the permeable hole. The water pipe ends flow, and can only flow along the S-shaped line between the first partition and the second partition, which greatly reduces the flow rate of rainwater, so that impurities such as sediment will settle to the bottom of the purification tank during the flow of rainwater, and the rainwater get cleansed. The purified rainwater is imported into the water storage tank through the aqueduct for temporary storage. The water storage tank is provided with a pressure balance device, so that the pressure in the water storage tank can be balanced with the outside world, so that rainwater can be smoothly imported into the water storage tank through the water guide pipe. Since the water storage tank is arranged in the soil layer, the evaporation of collected rainwater is greatly reduced. Through the reuse pipe, water pump and rainwater reuse pipe, the rainwater temporarily stored in the tank can be used for watering green plants and so on.

Further, the top plate of the purification box is detachable.

By adopting the above technical solution, the sediment deposited at the bottom of the purification box can be cleaned by opening the top plate, which increases the maintenance convenience of the rainwater recovery system.

Further, the permeable holes are strip-shaped holes.

By adopting the above-mentioned technical scheme, not only the water permeability efficiency is high, but also it can block large-sized debris such as stones and resins, reducing the cleaning frequency of the purification box.

Further, a filtering device for filtering rainwater is also arranged in the purification box.

By adopting the above technical solution, the filter device can be used to pre-filter the rainwater entering the purification box, so that the sediment deposited is mainly concentrated at the filter device, thereby improving the purification efficiency.

Further, the filter device includes a box-shaped filter bucket with an opening at the top, and the top opening of the filter bucket is located directly below the water permeable hole; a filter screen is provided on the side wall of the filter bucket near the top opening.

By adopting the above-mentioned technical scheme, after the rainwater is collected into the filter bucket, as the rainwater accumulates, the water level overflows to the filter screen, overflows from the filter screen into the purification box, and completes preliminary filtration and purification, so that most of the sediment is trapped in the filter tank. inside the barrel. At the same time, since the filter screen is set on the side wall of the top of the filter barrel, the silt trapped during filtering is easy to deposit to the bottom of the filter box due to its own weight, and it is not easy to adhere to the filter screen to block the filter screen, which greatly reduces the cleaning frequency of the filter device.

Further, the inner bottom wall of the filtering bucket is a concave arc surface.

By adopting the above technical scheme, the inner bottom wall of the filter bucket is set as a concave arc surface, which has the function of collecting silt and facilitates cleaning the silt deposited in the filter device.

Further, the pressure balance device includes a pressure balance pipe, one end of the pressure balance pipe communicates with the water storage tank, and the other end extends out of the soil layer.

By adopting the above-mentioned technical solution, the pressure balance pipe makes the internal pressure of the water storage tank the same as that of the outside world, and the rainwater can smoothly flow into the water storage tank, so that the rainwater recovery system of the sponge city can run efficiently and smoothly.

Further, the top end of the pressure balance pipe is provided with an end plate, and a number of air holes are opened on the end plate.

By adopting the above technical solution, it is ensured that the pressure balance pipe can effectively balance the pressure, and the possibility of external sundries entering the water storage tank from the pressure balance pipe can be reduced.

Further, the end of the water guide pipe communicating with the purification box is higher than the inner bottom wall of the purification box.

By adopting the above technical scheme, the rainwater level of the purification tank can only flow into the water storage tank through the water guide pipe if the water level is higher than the end opening of the water guide pipe, so that the sediment deposited in the purification tank is difficult to enter the water storage tank through the water guide pipe.

In summary, the utility model has the following beneficial effects:

1. The first partition and the second partition are installed in the purification box so that the rainwater can only flow along the S-shaped line in the purification box, which slows down the flow rate and allows the sediment to settle by itself, thereby achieving the purpose of purifying rainwater; at the same time , the top plate of the purification box is flush with the soil layer and can be disassembled, which greatly facilitates the cleaning of sediment in the purification box;

2. A filter barrel is set in the purification box, and a filter net close to the top wall of the purification box is set on the side wall of the filter barrel, so that the rainwater entering the purification box can be initially filtered and purified; at the same time, since the filter net is set in the filter The upper part of the barrel makes it difficult for the trapped sediment to adhere to the filter screen and cause blockage, which greatly reduces the cleaning frequency of the filter screen;

3. Use the water storage tank to temporarily store rainwater and reduce evaporation. With the help of recycling pipes, water pumps and rainwater reuse pipes, the accumulated rainwater can be exported for green plant irrigation, etc., which fully utilizes water resources and is environmentally friendly.

Description of drawings

Fig. 1 is the structural representation of sponge city rainwater recovery system in the embodiment;

Fig. 2 is the sectional view of sponge city rainwater recovery system in the embodiment;

Fig. 3 is an enlarged view of part A in Fig. 2;

FIG. 4 is an enlarged view of part B in FIG. 2 .

In the figure: 1, purification box; 11, top plate; 111, permeable hole; 12, first partition; 13, second partition; 14, filter bucket; 141, filter screen; 3. Water storage tank; 31. Pressure balance pipe; 311. Air vent; 4. Reuse pipe; 5. Water pump; 6. Rainwater reuse pipe.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Example:

A kind of sponge city rainwater recovery system, with reference to Fig. 1 and Fig. 2, it comprises purification box 1, water guide pipe 2, water storage tank 3, reuse pipe 4, water pump 5 and rainwater reuse pipe 6, wherein purification box 1, guide The water pipe 2 and the water storage tank 3 are all buried in the soil layer. The purification tank 1 is used to collect and purify rainwater, and the rainwater purified by the purification tank 1 is introduced into the water storage tank 3 through the water guide pipe 2 for temporary storage. One end of the reuse pipe 4 is inserted into the water storage tank 3 , the other end is connected to the water inlet of the water pump 5 , and the rainwater reuse pipe 6 is connected to the water outlet of the water pump 5 . The rainwater in the water storage tank 3 can be exported by means of the water pump 5 and the reuse pipe 4, and used for green plant irrigation through the rainwater reuse pipe 6, thereby realizing the recovery and reuse of rainwater.

Referring to Fig. 2 and Fig. 3, the purification box 1 is in the shape of a hollow rectangular box, and its top plate 11 is detachably arranged. During installation, it is enough to fasten the top plate 11 to the opening on the top of the purification box 1 box body, and the silt deposited in the purification box 1 can be cleaned up after the top plate 11 is disassembled.

Referring to Fig. 2 and Fig. 3, on the top plate 11 and at one end in the lengthwise direction of the purification box 1, there are several strip-shaped permeable holes 111, and the rainwater on the bottom surface can flow into the purification box 1 through the permeable holes 111. The strip-shaped permeable holes 111 not only have high water permeation efficiency, but also can effectively block leaves, stones and other sundries.

Referring to FIG. 2 and FIG. 3 , a filtering device is provided in the purification box 1 and directly below the water permeable hole 111 . The filter device includes a filter barrel 14, which is in the shape of a hollow rectangular box. The top of the filter bucket 14 has an opening, and the bottom plate is a concave arc-shaped plate, and the bottom plate is fixedly provided with feet 142 for supporting the filter bucket 14 . There is an installation opening near the top plate 11 of the purification box 1 on the barrel wall of the filter barrel 14, and a filter screen 141 is fixedly arranged at the installation opening. Rainwater flows from the permeable hole 111 into the filter bucket 14 and gradually accumulates until the water level reaches the filter screen 141. After being filtered by the filter screen 141, the rainwater flows into the inner chamber of the purification tank 1. During this process, due to the dead weight of the silt, it falls into the bottom of the filter bucket 14, which is not easy to block at the filter screen 141, which greatly reduces the cleaning frequency of the filter device. The arc-shaped bottom wall of the filter bucket 14 is beneficial to the collection of deposited silt and has the effect of facilitating cleaning.

With reference to Fig. 2, several first dividing plates 12 and several second dividing plates 13 are arranged in parallel in the clean box 1, and the first dividing plate 12 and the second dividing plate 13 are all perpendicular to the top plate 11 along the width direction of the clean box 1 set and distributed at equal intervals along the length direction of the clean box 1. The two ends of the lengthwise direction of the first partition 12 are attached to the opposite side walls of the purification box 1 respectively, the top is fixed on the bottom surface of the top plate 11, and there is a gap for rainwater to flow between the bottom and the inner bottom wall of the purification box 1; The second partition 13 is staggered between the first partitions 12, the two ends of the length direction are fixed on the opposite side walls of the purification box 1, the bottom is fixed on the inner bottom wall of the purification box 1, and the top and the top plate 11 are left There are gaps for rainwater to flow through. The setting of the first partition 12 and the second partition 13 makes the rainwater flow in the purification box 1 in an S-shaped direction away from the permeable hole 111, so that the flow velocity is slowed down and the solid impurities in the rainwater can settle by themselves. Regularly open the top plate 11 to clean up the silt deposited on the bottom of the purification box 1 .

Referring to FIG. 2 , the water storage tank 3 is also buried in the soil layer, and the top wall is lower than the bottom wall of the purification tank 1 . The purification tank 1 and the water storage tank 3 are connected by a water guide pipe 2 . One end of the water guide pipe 2 communicating with the purification tank 1 communicates with the inner bottom wall of the purification tank 1 away from the side of the permeable hole 111, and the end of the water guide pipe 2 extends to the inner bottom wall of the purification tank 1 higher than the purification tank 1.

Referring to Fig. 2 and Fig. 4, in order that the purified rainwater in the purification tank 1 can smoothly flow into the water storage tank 3, a pressure balance pipe 31 for balancing the pressure is also provided. One end of the pressure balance pipe 31 communicates with the water storage tank 3, and the other end extends through the soil layer. One end of the pressure balance pipe 31 protruding from the soil layer even has an end plate, and the end plate is provided with a ventilation hole 311 .

Referring to Fig. 2, since the water storage tank 3 is buried in the soil layer, the evaporation of stored rainwater is greatly reduced, which is beneficial to the recycling of rainwater resources. One end of the reuse pipe 4 of the sponge city rainwater recovery system is inserted into the water storage tank 3, and the other end is connected with the water inlet end of the water pump 5 on the ground; the water outlet end of the water pump 5 is connected with a rainwater reuse pipe 6. After the water pump 5 is turned on, the rainwater stored in the water storage tank 3 can be drawn through the reuse pipe 4, and then exported through the rainwater reuse pipe 6, which can be used as water for green plants, water for washing, etc., which is convenient and convenient.

The above-mentioned specific embodiment is only an explanation of the utility model, and it is not a limitation of the utility model. Those skilled in the art can make modifications to the embodiment without creative contribution according to needs after reading this specification, but as long as it is within the utility model All new claims are protected by patent law.

Claims (9)

1. a kind of sponge urban rainwater recovery system, it is characterised in that: including purifying box (1), water storage box (3), aqueduct (2), Reuse pipe (4), water pump (5) and rainwater recycle pipe (6)；The purifying box (1) be in hollow rectangular box, be embedded at soil layer and Top is flushed with soil layer；It is provided at the top of the purifying box (1) and positioned at purifying box (1) length direction one end several for rainwater stream The permeable hole (111) entered；Several pieces of first partitions (12) being parallel to each other of setting and second partition in the purifying box (1) (13)；The first partition (12) and second partition (13) are each perpendicular to purifying box along the width direction of purifying box (1) (1) inner roof wall；The inner roof wall of purifying box (1), the interior bottom of bottom and purifying box (1) are fixed at the top of the first partition (12) There are gaps between wall；Mistake is set between adjacent two first partition (12) between the second partition (13), and second partition (13) top with there are gap, bottoms between the inner roof wall of purifying box (1) is fixedly connected with the inner bottom wall of purifying box (1)；It is described to lead Water pipe (2) one end is connected to water storage box (3), and the other end is connected to purifying box (1), and the connection of aqueduct (2) and purifying box (1) Place is located at the inner bottom wall of purifying box (1) far from permeable hole (111) one end；The water storage box (3) is embedded in soil layer, and water storage box (3) roof is lower than the bottom wall of purifying box (1)；Pressure equaliser is connected on the water storage box (3)；The reuse pipe (4) One end is inserted into water storage box (3), and the other end is connect with the water inlet end of water pump (5)；The rainwater recycles pipe (6) and water pump (5) Water outlet connection.

2. a kind of sponge urban rainwater recovery system according to claim 1, it is characterised in that: the purifying box (1) Top plate (11) is detachably arranged.

3. a kind of sponge urban rainwater recovery system according to claim 2, it is characterised in that: the permeable hole (111) For strip-type hole.

4. a kind of sponge urban rainwater recovery system according to claim 1-3, it is characterised in that: the purification The filter device for being filtered to rainwater is additionally provided in case (1).

5. a kind of sponge urban rainwater recovery system according to claim 4, it is characterised in that: the filter device includes The filter vat (14) of the box-like of opening is arranged at top, and the top opening of filter vat (14) is located at the underface of permeable hole (111)；Institute It states on the side wall of filter vat (14) and top open part is provided with filter screen (141).

6. a kind of sponge urban rainwater recovery system according to claim 5, it is characterised in that: the filter vat (14) Inner bottom wall is recessed arcwall face.

7. a kind of sponge urban rainwater recovery system according to claim 1-3, it is characterised in that: the pressure Balancing device includes pressure-equalizing pipe (31), and described pressure-equalizing pipe (31) one end is connected to water storage box (3), the other end stretches out soil Layer.

8. a kind of sponge urban rainwater recovery system according to claim 7, it is characterised in that: the pressure-equalizing pipe (31) top is provided with end plate, and several air holes (311) are provided on end plate.

9. a kind of sponge urban rainwater recovery system according to claim 1-3, it is characterised in that: the water guide One end that pipe (2) is connected to purifying box (1) is higher than the inner bottom wall of purifying box (1).