CN204326231U - A kind of rainwater purification is set case and is applied the system of this tree case - Google Patents

Abstract

The utility model relates to the technical field of urban greening tree boxes, and discloses a rainwater purification tree box. The rainwater purification tree box includes a box body and a water inlet pipe, and the box body includes: an outer wall, a cover plate and a bottom plate connected with the outer wall; a water filter layer and a soil layer are sequentially arranged in the box body from top to bottom, and the The water inlet pipe protrudes from the outer wall of the other side of the box body after passing through the outer wall on one side of the box body, the filter layer and the soil layer in turn, and the water inlet pipes are respectively provided with water leakage holes and a water inlet, the water leakage hole is located in the water filter layer, the water inlet is located in the soil layer, and the outer wall is an air-permeable anti-seepage sand layer. The rainwater in the rainwater purification tree box provided by the utility model can be recycled after being purified and filtered by the box body, which has the advantages of good purification effect and energy saving; and the outer wall adopts a breathable and anti-seepage sand layer, which has remarkable breathable and anti-seepage performance, which is beneficial Trees grow and develop.

Description

A rainwater purification tree box and a system using the tree box

technical field

The utility model relates to the technical field of urban greening tree boxes, in particular to a rainwater purification tree box and a system using the tree box, in particular to a rainwater purification tree box which is beneficial to tree growth and can purify rainwater and a system using the tree box system.

Background technique

Most of the existing tree boxes adopt concrete pouring or box structure, holes are opened on the curb, rainwater grates are installed, and then the reinforced concrete cover is covered. The material of concrete is airtight, and the stored rainwater will deteriorate, which seriously affects the quality of rainwater and is not conducive to tree growth and tree root respiration. Concrete materials consume a lot of rock or land resources, and the pouring, transportation and installation are inconvenient and expensive.

The rainwater in the existing tree box will be directly drained through the rainwater outlet, and the rainwater resources cannot be recycled. With the intensification of urbanization, a large amount of rainwater runoff is directly discharged without treatment, which increases the burden on urban drainage facilities, especially the initial rainwater is mixed with a large amount of surface pollutants, which flows into the river, making the water quality of the river black and smelly .

A large number of studies have shown that rainwater runoff has an obvious initial flushing effect, that is, in most cases, pollutants are concentrated in the initial few millimeters of rainfall. The initial rainwater runoff has the characteristics of large flow, strong impact, and high pollution load. The implementation of comprehensive management has become an important emerging topic. During the falling process of rainwater, dissolved gases, dissolved or suspended solids, heavy metals and bacteria in the air will enter into it. The pollutants in the surface runoff mainly come from the erosion of the surface by rainfall, so the surface sediment is the pollution in the surface runoff. main source of matter. Surface sediments include many pollutants, including solid waste debris, such as urban garbage, animal manure, and accumulations at urban construction sites; chemicals, such as fertilizers and pesticides applied to lawns, and vehicle emissions. Surfaces with different land use functions have different sources of sediment, so the quality of rainwater will vary with different locations and time.

In view of the above-mentioned defects in the prior art, it is necessary to provide a rainwater purification tree box which is beneficial to the growth of trees and capable of purifying rainwater and a system using the tree box.

Utility model content

(1) Technical problems to be solved

The technical problem to be solved by the utility model is that most of the existing tree boxes adopt concrete pouring, or a box structure, holes are opened on the curb, rainwater grates are installed, and then the reinforced concrete cover is covered. The material of concrete is airtight, and the stored rainwater will deteriorate, which seriously affects the quality of rainwater and is not conducive to tree growth and tree root respiration. Concrete materials consume a lot of rock or land resources, and the pouring, transportation and installation are inconvenient and expensive. The rainwater in the tree box will be drained directly through the rainwater outlet, and the rainwater resources cannot be recycled. With the intensification of urbanization, a large amount of rainwater runoff is directly discharged without treatment, which increases the burden on urban drainage facilities.

(2) Technical solutions

In order to solve the above technical problems, the utility model provides a rainwater purification tree box. The rainwater purification tree box includes a box body and a water inlet pipe, and the box body includes: an outer wall, a cover plate and a bottom plate connected with the outer wall; a water filter layer and a soil layer are sequentially arranged in the box body from top to bottom, and the The water inlet pipe protrudes from the outer wall of the other side of the box body after passing through the outer wall on one side of the box body, the filter layer and the soil layer in turn, and the water inlet pipes are respectively provided with water leakage holes and a water inlet, the water leakage hole is located in the water filter layer, the water inlet is located in the soil layer, and the outer wall is an air-permeable anti-seepage sand layer.

Wherein, the water filter layer includes a first water filter layer and a second water filter layer, the second water filter layer is located between the first water filter layer and the soil layer, and the water leakage hole is located in the first water filter layer. in the filter layer.

Wherein, the second water filtering layer is a silica sand permeable layer.

Wherein, the cover plate is provided with a plurality of ventilation holes.

Wherein, a ventilation pipe is also included, one end of the ventilation pipe is arranged correspondingly to the ventilation hole, and the other end is located in the soil layer.

Wherein, the ventilation pipe communicates with the water inlet through a branch pipe, the branch pipe is located at the bottom of the soil layer, and a plurality of water inlet holes are arranged on the branch pipe.

Wherein, the cover plate, the outer wall and the bottom plate are detachably connected.

A rainwater purification tree box system is also provided, the rainwater purification tree box system includes the above-mentioned rainwater purification tree box, and is characterized in that it also includes a collection well, and the rainwater purification inlet pipe communicates with the collection well.

(3) Beneficial effects

The above-mentioned technical scheme of the utility model has the following advantages: the box body in the rainwater purification tree box provided by the utility model includes: an outer wall, a cover plate and a bottom plate connected with the outer wall; The soil layer, the water inlet pipe passes through the outer wall on one side of the box, the water filter layer and the soil layer in turn, and then protrudes from the outer wall on the other side of the box. The water inlet pipe is respectively provided with a water leakage hole and a water inlet. In the layer, the water inlet is located in the soil layer, and the outer wall is a breathable and anti-seepage sand layer. The rainwater in the rainwater purification tree box provided by the utility model can be recycled after being purified and filtered by the box body, which has the advantages of good purification effect and energy saving; and the outer wall adopts a breathable and anti-seepage sand layer, which has remarkable breathable and anti-seepage performance, which is beneficial Trees grow and develop.

Description of drawings

Fig. 1 is a schematic structural view of a rainwater purification tree box according to an embodiment of the present invention.

In the figure: 1: ventilation hole; 2: first water filter layer; 3: second water filter layer; 4: soil layer; 5: ventilation pipe; 6: outer wall; 7: water leakage hole; 8: water inlet pipe; 9: cover plate.

Detailed ways

In the description of the present utility model, unless otherwise specified, the meaning of "multiple" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer" The orientation or positional relationship indicated by ", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the machine or element referred to must have a specific orientation, so as to Specific orientation configurations and operations, therefore, should not be construed as limitations on the invention.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

The specific implementation of the present utility model will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

As shown in Figure 1, the rainwater purification tree box provided by the embodiment of the utility model includes a box body and a water inlet pipe 8, and the box body includes: an outer wall 6, a cover plate 9 connected to the outer wall 6 and a bottom plate; A water filter layer and a soil layer 4 are arranged in sequence, that is, the water filter layer is arranged on the upper layer, and the soil layer 4 is arranged on the lower layer. The water inlet pipe 8 protrudes from the outer wall 6 on the other side of the casing after passing through the outer wall 6 on one side of the casing, the water filter layer and the soil layer 4 successively. The water inlet end of the water inlet pipe 8 is located in the water filter layer, and the water outlet end of the water inlet pipe 8 is located in the soil layer. The water outlet of the water inlet pipe 8 is communicated with other pipelines, and the water inlet pipe 8 is respectively provided with a water leakage hole 7 and a water inlet, the water leakage hole 7 is located in the water filter layer, and the water inlet is located in the soil layer 4 . Rainwater flows to the water filter layer from the leak hole 7 of the water inlet pipe 8, and enters in the soil layer 4 after filtering impurities through the filter water layer. The filtered water enters the water inlet pipe 8 from the water inlet, and flows out of the casing of the rainwater purification tree box into other municipal pipelines for recycling. In this embodiment, the outer wall 6 is a breathable and anti-seepage sand layer.

The air-permeable and anti-seepage sand layer in the rainwater purification tree box provided in this embodiment is the prior art, that is, the original sand grains or silica sand grains, anti-seepage resin and binder are combined to form an air-permeable and anti-seepage sand layer. The outer wall of the rainwater purification tree box provided by the utility model adopts an air-permeable and anti-seepage sand layer, which has remarkable air-permeable and anti-seepage performance, and is beneficial to the growth and development of trees. Setting the water filter layer in the tree box can effectively purify the rainwater, and then recycle the rainwater after purification, which has the advantages of good purification effect and energy saving.

In order to increase the air permeability of the rainwater purification tree box, the present embodiment is also provided with a plurality of ventilation holes 1 on the cover plate 9 for ventilation. Air pipe 5 is also arranged in the tree box in order to make air permeability better, and one end of air pipe 5 is correspondingly arranged with air hole 1. One end of the ventilation pipe 5 is located below the ventilation hole 1 , and the other end of the ventilation pipe 5 is located in the soil layer 4 . Air enters the soil layer 4 through the air hole 1 and the air pipe 5 .

In the rainwater purification tree box provided in this embodiment, the vent pipe 5 communicates with the water inlet of the water inlet pipe 8 through a branch pipe. In order to collect rainwater at the bottom of the box, the branch pipe is located at the bottom of the cavity, that is, the water inlet is located in the soil layer 4 close to the bottom plate, so that the water at the bottom of the cavity flows out to prevent water from staying in the soil layer 4. In this embodiment, there are a plurality of water inlet holes on the branch pipe, and rainwater enters the water outlet end of the water inlet pipe 8 from the water inlet holes through the water inlet.

In the rainwater purification tree box provided in this embodiment, the ventilation pipe 5 is communicated with the branch pipe, so that the air enters the box body through the ventilation hole 1, the ventilation pipe 5 and the water inlet hole. The water filter layer includes a first water filter layer 2 and a second water filter layer 3. In this embodiment, two layers of water filter layers are used, but not limited to two layers. The second filter layer 3 is located between the first filter layer 2 and the soil layer 4 , that is, the first filter layer 2 is located above the second filter layer 3 . The first water filter layer 2 is used to filter impurities with large particles, and the second water filter layer 3 is used to filter impurities with small particles, and the double-layer filter effect is good. In this embodiment, the water leakage hole 7 of the water inlet pipe 8 is located in the first water filtration layer 2 , so that water flowing out of the water leakage hole 7 can first pass through the first water filtration layer 2 and then pass through the second water filtration layer 3 .

In the present embodiment, the first water filter layer 2 is a graded sandstone, and the graded sandstone includes stones and fine sand. The particle diameter of the stone is 30-40cm, and the gap between the stones is filled with fine sand. The water also acts as a filter. The first water filter layer 2 can also be other materials that play a certain role in filtering, such as bricks or blocks. The second water filter layer 3 is a permeable layer of silica sand, and the permeable layer of silica sand is the prior art, that is, the mixture of silica sand and adhesive is solidified to form, and the composition of the permeable layer of silica sand is formed by mixing fine sand and resin adhesive, and the resin The adhesive is at least partly a hydrophilic resin adhesive, the particle size of the fine sand is 0.07mm-2mm, and the permeation rate of the silica sand permeable layer is greater than or equal to 6.8×10 ^-2 cm/s. Water seeps through the capillaries of the silica sand permeable layer, and is not easily blocked by dust. The silica sand water-permeable layer can breathe freely without deteriorating rainwater, and being arranged between the first water filter layer 2 and the soil layer 4 can make the water leaked from the leak hole 7 be evenly distributed on the second water filter layer 3 for further filtration. The rainwater purification tree box provided in this embodiment has a high removal rate of pollutants, and the removal rate of pollutants is shown in Table 1, so that the water quality after removal is as shown in Table 2.

For the convenience of carrying, the rainwater purification tree box provided in this embodiment is detachably connected between the cover plate 9, the outer wall 6 and the bottom plate. The methods and specific processes of debris removal include: precipitation, filtration, adsorption/absorption, cation exchange, polar/nonpolar adsorption, aerobic/anaerobic microbial decomposition, digestion, reverse digestion treatment, plant interception and absorption, carbon containing and metal nutrient circulation, silica sand device regulation and storage, volatilization/evaporation, rainwater storage and preservation, and rainwater recycling.

Table 1

Table 2

The rainwater purification tree box provided in this embodiment can be applied in the field of municipal engineering to purify and recycle rainwater, reduce urban rainwater runoff, and reduce municipal drainage pressure. It is an efficient rainwater natural purification, regulation and storage, and bio-retention technology. This technology combines plants and advanced ventilation and anti-seepage devices, which can naturally purify and remove bacteria, metal substances, oil stains, suspended solids, etc. in rainwater; The growth of box plants has a great promotion and protection effect. The use of ecological and environmentally friendly breathable and anti-seepage sand layer makes the tree box have the function of air permeability and impermeability, which makes the tree box have good air permeability and anti-seepage performance, and the filtration and interception effect is remarkable, which effectively promotes the growth and development of plants. It solves the problem of urban road area water or urban waterlogging caused by the failure of urban rainwater pipe network to collect or timely drainage. At the same time, it improves the urban rainwater drainage system and realizes the purification, storage, preservation and recycling of rainwater. It solves the problem of water demand and nearby water for urban plant greening or road cleaning, replenishes groundwater, and reduces the development and utilization of groundwater resources. This technology is easy to maintain in the later stage, and can be applied to new construction, renovation and expansion projects. The detachable modular assembly method is more convenient, and the size and size of the tree box can be changed according to actual needs.

The utility model also provides a rainwater purification tree box system, including the above-mentioned rainwater purification tree box. The number of rainwater purification tree boxes can be single or multiple, and the number can be changed according to requirements. The rainwater purification tree box system also includes a collection well, and the rainwater purification tree box is communicated with the collection well through a water inlet pipe 8 . In the present embodiment, one end of the water inlet pipe 8 communicates with the bottom of the collection well, and a water filter layer for filtering water is arranged in the collection well, and the rainwater is collected and precipitated by the collection well and then enters the casing of the rainwater purification tree box through the water inlet pipe 8. The collection well can be prevented from being buried on the roof or buried in the ground, which solves the problem of water accumulation on urban roads or urban waterlogging caused by the failure of urban rainwater pipe network to collect or timely drainage.

When the rainwater purification tree box of the utility model is used: the cover plate 9, the outer wall 6 and the bottom plate are combined to form a box body, after the rainwater is collected, it enters the box body through the water inlet pipe 8, and the rainwater enters the first water filter layer 2 through the leakage hole 7 for filtration. , and then enter the second water filter layer 3 to filter, the filtered rainwater flows into the soil layer 4, enters the water inlet pipe 8 through the water inlet hole on the branch pipe and then flows out of the tree box into other pipelines for recycling. The water in the branch pipe can also evaporate out of the tree case by the vent pipe 5 and the vent hole 1.

To sum up, the utility model has the following advantages: the box body in the rainwater purification tree box provided by the utility model includes: the outer wall, the cover plate and the bottom plate connected with the outer wall; and the soil layer, the water inlet pipe passes through the outer wall on one side of the box, the filter layer and the soil layer in turn, and then protrudes from the outer wall on the other side of the box. The water inlet pipe is respectively provided with a water leak hole and a water inlet. In the water layer, the water inlet is located in the soil layer, and the outer wall is a breathable and anti-seepage sand layer. The rainwater in the rainwater purification tree box provided by the utility model can be recycled after being purified and filtered by the box body, which has the advantages of good purification effect and energy saving; and the outer wall adopts a breathable and anti-seepage sand layer, which has remarkable breathable and anti-seepage performance, which is beneficial Trees grow and develop.

Further, the filter layer in the box of the rainwater purification tree box adopts a permeable layer of silica sand, which can effectively filter impurities in the water, purify and recycle rainwater.

The above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be applied to the foregoing embodiments The technical solutions described in the examples are modified, or some of the technical features are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (8)

1. a kind of rainwater purification tree box is characterized in that, comprises casing and water inlet pipe (8), and described casing comprises: outer wall (6), cover plate (9) and the base plate that are connected with outer wall (6); A water filter layer and a soil layer (4) are sequentially arranged in the box body from top to bottom, and the water inlet pipe (8) passes through the outer wall (6) on one side of the box body, the water filter layer and the soil layer (4) stretch out from the outer wall (6) on the other side of the box body, and the water inlet pipe (8) is respectively provided with a water leakage hole (7) and a water inlet, and the water leakage hole ( 7) Located in the water filter layer, the water inlet is located in the soil layer (4), and the outer wall (6) is an air-permeable and anti-seepage sand layer. 2. rainwater purification tree box according to claim 1, is characterized in that: described water filter layer comprises first water filter layer (2) and second water filter layer (3), and described second water filter layer ( 3) Located between the first water filter layer (2) and the soil layer (4), the water leakage hole (7) is located in the first water filter layer (2). 3. The rainwater purification tree box according to claim 2, characterized in that: the second water filtering layer (3) is a silica sand permeable layer. 4. The rainwater purification tree box according to claim 1, characterized in that: the cover plate (9) is provided with a plurality of ventilation holes (1). 5. The rainwater purification tree box according to claim 4, characterized in that: it also includes a ventilation pipe (5), one end of the ventilation pipe (5) is set corresponding to the ventilation hole (1), and the other end is located at the In the soil layer (4). 6. The rainwater purification tree box according to claim 5, characterized in that: the ventilation pipe (5) communicates with the water inlet through a branch pipe, and the branch pipe is positioned at the bottom of the soil layer (4), and the A plurality of water inlet holes are arranged on the branch pipe. 7. The rainwater purification tree box according to claim 1, characterized in that: the cover plate (9), the outer wall (6) and the bottom plate are detachably connected. 8. A rainwater purification tree box system, comprising the rainwater purification tree box as claimed in any one of claims 1-7, characterized in that: it also includes a collection well, and the rainwater purification tree box passes through the water inlet pipe (8 ) communicates with the collection well.