CN212076574U

CN212076574U - Improvement type biological facility that is detained

Info

Publication number: CN212076574U
Application number: CN202020331308.5U
Authority: CN
Inventors: 张军; 宋萌萌
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-09
Filing date: 2020-03-09
Publication date: 2020-12-04
Anticipated expiration: 2030-03-09

Abstract

The utility model discloses an improved biological detention facility, which comprises a water storage layer, wherein a bark covering layer is connected below the water storage layer, and a soil changing layer is connected below the bark covering layer; the soil changing layer comprises a soil layer, a zeolite layer and a fallen leaf compost layer, the fallen leaf compost layer is arranged above the soil layer, the zeolite layer is connected below the soil layer, the filtering sand layer is connected below the soil changing layer, the gravel drainage layer is arranged below the filtering sand layer, and the drainage pipe is arranged in the gravel drainage layer. The utility model relates to an improvement type biological detention facility, through setting up soil horizon, zeolite layer and fallen leaves compost layer, improve the fertile degree of soil basic unit, guarantee the better growth of plant, the continuous absorption of plant trades pollutants such as nitrogen phosphorus in the soil horizon to the adsorption efficiency who makes the soil horizon can resume, prevents that big impurity from blockking up rainwater irrigation canal pipe, improves the rainwater and collects the quality, and the filter bottom plate is dismantled, is convenient for clear up filterable rubbish in the filtration inside groove, increases life.

Description

Improvement type biological facility that is detained

Technical Field

The utility model relates to a biological facility technical field that is detained specifically is an improvement type biological facility that is detained.

Background

The bioretention facilities have certain difference in pollutant removing effect under different climatic conditions and in different regions, and the construction of the bioretention facilities can not be carried out according to local conditions. The method is used for constructing a sponge city, the indigenous property of the bioretention pond is optimized and improved according to local climatic conditions, soil characteristics and the like, the existing soil has the defects of low organic matter, weak permeability, easy hardening and the like, wherein the permeability coefficient of red soil is only 1.5 multiplied by 10 < -6 > m/s, and the red soil is not suitable for independently constructing bioretention facilities.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an improvement type biological detention facility, through setting up the soil horizon, zeolite layer and fallen leaves compost layer, improve the fertile degree of soil basic unit, guarantee the better growth of plant, the continuous absorption of plant trades pollutants such as nitrogen phosphorus in the soil horizon, thereby make the adsorption efficiency who trades the soil horizon can resume, prevent that big impurity from blockking up rainwater irrigation canal pipe, improve the rainwater and collect the quality, the filter bottom plate is dismantled, be convenient for clear up filterable rubbish in the filtration inside groove, and the service life is prolonged, the problem among the prior art is solved.

In order to achieve the above object, the utility model provides a following technical scheme: an improved biological retention facility comprises a water storage layer, wherein a bark covering layer is connected below the water storage layer, and a soil exchange layer is connected below the bark covering layer;

the soil changing layer comprises a soil layer, a zeolite layer and a fallen leaf compost layer, the fallen leaf compost layer is arranged above the soil layer, the zeolite layer is connected below the soil layer, the filtering sand layer is connected below the soil changing layer, the gravel drainage layer is arranged below the filtering sand layer, a drainage pipe is arranged in the gravel drainage layer, an overflow pipe is arranged at the upper end of the middle of the drainage pipe, an overflow cover is arranged at the upper end of the overflow pipe, and a filtering component is connected below the overflow cover;

the filtering component comprises an inner filtering groove and a filtering bottom plate, the upper end of the inner filtering groove is fixedly installed below the overflow cover, the bottom end of the inner filtering groove is connected with the filtering bottom plate, and the bottom end of the overflow pipe is connected with the rainwater irrigation canal pipe.

Preferably, the top of the bark covering layer covers the turf layer and the vegetation layer, and the water storage layer is arranged on the turf layer and the vegetation layer.

Preferably, the particle size of the zeolite in the zeolite layer is 2-4 mm, and the volume ratio of the soil layer, the zeolite layer and the fallen leaf compost layer is 7: 12: 1.

Preferably, the upper layer and the lower layer of the gravel drainage layer are respectively provided with an impermeable membrane, and the upper end of the gravel drainage layer is connected with the filtering sand layer through the impermeable membrane.

Preferably, a plurality of water permeable holes are formed in the outer surface of the water drainage pipe.

Preferably, the cover body of the overflow cover is provided with strip-shaped hydrophobic holes, the filtering inner groove below the overflow cover and the filtering bottom plate are both provided with filtering meshes, and the filtering bottom plate is detachably connected with the filtering inner groove.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model relates to an improvement type biological detention facility, the upper end sets up the overflow pipe in the middle of the drain pipe, bark overburden's top covers turf layer and vegetable layer, and the water-retaining layer sets up on turf layer and vegetable layer, the particle diameter of zeolite in the zeolite layer is 2 ~ 4mm, the soil horizon, zeolite layer and fallen leaves compost layer three volume ratio are 7: 12: 1, gravel drainage layer's upper and lower layer sets up the prevention of seepage membrane respectively, gravel drainage layer upper end is connected with the filter sand layer through the prevention of seepage membrane, set up a plurality of water permeable hole on the surface of drain pipe, through setting up the soil horizon, zeolite layer and fallen leaves compost layer, improve soil basic unit's fertile degree, guarantee the better growth of plant, the continuous absorption of plant is traded pollutants such as nitrogen phosphorus in the soil layer, thereby make the adsorption efficiency of trading the soil layer can resume.

2. The utility model relates to an improvement type biological detention facility, all set up the filtration mesh hole on filtration inside groove and the filtration bottom plate of overflow lid below, filter the bottom plate and can dismantle with the filtration inside groove and be connected, filter the intraductal rainwater of overflow through filtering component, prevent that big impurity from blockking up rainwater irrigation canal pipe, improve the rainwater and collect the quality, filter the bottom plate and dismantle, be convenient for clear up the filterable rubbish in the filtration inside groove, increase life.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of the point A of the present invention;

fig. 3 is a top view of the overflow cover structure of the present invention;

fig. 4 is a schematic view of the filter assembly mechanism of the present invention.

In the figure: 1. a aquifer; 2. a bark blanket; 3. changing a soil layer; 31. a soil layer; 32. a zeolite layer; 33. a fallen leaf compost layer; 4. filtering the sand layer; 5. a gravel drainage layer; 51. a drain pipe; 52. an impermeable membrane; 6. an overflow pipe; 61. an overflow cover; 611. strip-shaped drain holes; 7. a filter assembly; 71. filtering the inner tank; 72. a filter base plate; 8. a rainwater irrigation canal pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, an improved bioretention facility comprises a water storage layer 1, a bark cover layer 2 connected below the water storage layer 1, a soil exchange layer 3 connected below the bark cover layer 2, the soil exchange layer 3 including a soil layer 31, a zeolite layer 32 and a fallen leaf compost layer 33, the fallen leaf compost layer 33 arranged above the soil layer 31, the zeolite layer 32 connected below the soil layer 31, a filtering sand layer 4 connected below the soil exchange layer 3, a gravel drainage layer 5 arranged below the filtering sand layer 4, a drainage pipe 51 arranged in the gravel drainage layer 5, an overflow pipe 6 arranged at the upper end of the middle of the drainage pipe 51, a turf layer and a vegetation layer covering above the bark cover layer 2, the water storage layer 1 arranged on the turf layer and the vegetation layer, the zeolite in the zeolite layer 32 having a particle size of 2-4 mm, the volume ratio of the soil layer 31, the zeolite layer 32 to the fallen leaf compost layer 33 being 7: 12: 1, and impermeable membranes 52 arranged on the upper and lower layers of the gravel drainage layer 5, the gravel drainage layer 5 upper end is passed through prevention of seepage membrane 52 and is connected with filtering sand layer 4, sets up a plurality of hole of permeating water on drain pipe 51's the surface, through setting up soil horizon 31, zeolite layer 32 and fallen leaves compost layer 33, improves the fertile degree of soil basic unit, guarantees the better growth of plant, and the continuous absorption of plant trades pollutants such as nitrogen phosphorus in the soil horizon 3 to make the adsorption efficiency who trades the soil horizon 3 can resume.

Referring to fig. 3-4, an overflow cover 61 is disposed at the upper end of the overflow pipe 6, a filter assembly 7 is connected below the overflow cover 61, the filter assembly 7 includes an inner filter tank 71 and a filter base plate 72, the upper end of the inner filter tank 71 is fixedly mounted below the overflow cover 61, the bottom end of the inner filter tank 71 is connected to the filter base plate 72, the bottom end of the overflow pipe 6 is connected to the rain irrigation pipe 8, a strip-shaped drain hole 611 is disposed on the cover body of the overflow cover 61, filter mesh holes are disposed on both the inner filter tank 71 below the overflow cover 61 and the inner filter base plate 72, the inner filter base plate 72 is detachably connected to the inner filter tank 71, rainwater in the overflow pipe 6 is filtered by the filter assembly 7, large impurities are prevented from blocking the rain irrigation pipe 8, rainwater collection quality is improved, the inner filter base plate 72 is detached, garbage filtered in.

In summary, the following steps: the utility model discloses improvement type biological detention facility, the upper end sets up overflow pipe 6 in the middle of drain pipe 51, bark overburden 2's top covers turf layer and vegetable layer, and reservoir 1 sets up on turf layer and vegetable layer, the particle diameter of zeolite is 2 ~ 4mm in zeolite layer 32, soil horizon 31, zeolite horizon 32 and fallen leaves compost layer 33 volume ratio is 7: 12: 1, gravel drainage 5's upper and lower layer sets up prevention of seepage membrane 52 respectively, gravel drainage 5 upper end is connected with filtration sand bed 4 through prevention of seepage membrane 52, set up a plurality of holes of permeating water on drain pipe 51's the surface, through setting up soil horizon 31, zeolite horizon 32 and fallen leaves compost layer 33, improve the fertile degree of soil basic unit, guarantee the better growth of plant, the continuous absorption of plant trades pollutants such as nitrogen phosphorus in soil horizon 3, thereby make the adsorption efficiency of trading soil horizon 3 resume, all set up the filtration inside groove 71 and filtration mesh hole on bottom plate 72 below overflow lid 61, filter bottom plate 72 and filter inside groove 71 and can dismantle the connection, filter the rainwater in the overflow pipe 6 through filtering component 7, prevent that big impurity from blockking up rainwater irrigation canal pipe 8, improve the rainwater and collect the quality, filter bottom plate 72 and dismantle, be convenient for clear up filterable rubbish in filtering inside groove 71, increase life.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An improved bioretention installation comprising an aquifer (1), characterized in that: the bark covering layer (2) is connected below the water storage layer (1), and the soil exchange layer (3) is connected below the bark covering layer (2);

the soil changing layer (3) comprises a soil layer (31), a zeolite layer (32) and a fallen leaf compost layer (33), the fallen leaf compost layer (33) is arranged above the soil layer (31), the zeolite layer (32) is connected below the soil layer (31), a filtering sand layer (4) is connected below the soil changing layer (3), a gravel drainage layer (5) is arranged below the filtering sand layer (4), a drainage pipe (51) is arranged in the gravel drainage layer (5), an overflow pipe (6) is arranged at the upper end of the middle of the drainage pipe (51), an overflow cover (61) is arranged at the upper end of the overflow pipe (6), and a filtering component (7) is connected below the overflow cover (61);

the filtering assembly (7) comprises an inner filtering groove (71) and a filtering bottom plate (72), the upper end of the inner filtering groove (71) is fixedly installed below the overflow cover (61), the bottom end of the inner filtering groove (71) is connected with the filtering bottom plate (72), and the bottom end of the overflow pipe (6) is connected with the rainwater irrigation canal pipe (8).

2. An improved bioretention installation according to claim 1 wherein: the top of bark overburden (2) covers turf layer and vegetation layer, and aquifer (1) sets up on turf layer and vegetation layer.

3. An improved bioretention installation according to claim 1 wherein: the particle size of zeolite in the zeolite layer (32) is 2-4 mm, and the volume ratio of the soil layer (31), the zeolite layer (32) and the fallen leaf compost layer (33) is 7: 12: 1.

4. An improved bioretention installation according to claim 1 wherein: the upper layer and the lower layer of the gravel drainage layer (5) are respectively provided with an anti-seepage film (52), and the upper end of the gravel drainage layer (5) is connected with the filtering sand layer (4) through the anti-seepage film (52).

5. An improved bioretention installation according to claim 1 wherein: the outer surface of the drain pipe (51) is provided with a plurality of water permeable holes.

6. An improved bioretention installation according to claim 1 wherein: strip-shaped drain holes (611) are formed in the cover body of the overflow cover (61), filter meshes are formed in the filtering inner groove (71) and the filtering bottom plate (72) below the overflow cover (61), and the filtering bottom plate (72) is detachably connected with the filtering inner groove (71).