CN207277495U - A kind of precast segment and processing unit of multistage rainwater biological treatment tank - Google Patents

Abstract

The utility model discloses a kind of precast segment of multistage rainwater biological treatment tank, it includes prefabricated well body and prefabricated cover board, spaced two card slot is prefabricated with the well body, overflow wall and partition wall are detachably installed respectively on two card slots, the overflow wall is used to for the well body to be divided into the settling tank for being sequentially distributed and connecting from front to back with the partition wall, filtering ponds and blowoff basin, there is prefabricated water outlet on the well body side wall opposite with the partition wall, the cover board is used to cover the well body, offered successively on the cover board for connecting the settling tank, the water inlet of the filtering ponds and the blowoff basin, planting entrance and inspection socket.The invention also discloses a kind of multistage rainwater biological treatment device.The utility model is by modularization assembling, and quick and easy for installation, short construction period, constructing, it is smaller to be influenced by live weather.

Description

A kind of precast segment and processing unit of multistage rainwater biological treatment tank

Technical field

It the utility model is related to rainwater treatment technical field, and in particular to prefabricated group of a kind of multistage rainwater biological treatment tank Part and processing unit.

Background technology

With the quickening of Urbanization in China, city size is constantly expanded, and has the urban green space area of water storage function Gradually decrease, the substitute is hardened ground.However, arrive plum rain season every year, many cities all can because of rainfall big, rainfall The reasons such as concentration, drainage pipeline networks aging and produce serious waterlogging, rain water-harvesting is simultaneously mingled with the pollutant accumulated on ground, with rain Water flows into natural water, causes serious water pollution, has been further exacerbated by water resources crisis.Therefore, it is necessary to rainwater is carried out Pretreatment, to prevent natural water pollution from further deteriorating.

China uses processing pond to coordinate Biomedia to achieve the purpose that to remove the pollutant in rainwater, after processing at present Rainwater can reach discharge standard, it might even be possible to be recycled.But these processing ponds are usually all to be poured at the scene Construction.Although this mode, which pours the processing pond built up, can meet rainwater pre-processing requirements, there are following defect：

(1) site operation needs larger construction space, higher to place space requirement, if space is small, construction is non- It is often inconvenient.

(2) the site operation cycle is too long, and site operation inconvenience control process pool size precision.

(3) construction is had a great influence by weather, sleety weather constructional difficulties.

(4) length curing cycle in post-processing pond, if damage, maintenance difficult.

Utility model content

For defect existing in the prior art, the purpose of this utility model is to provide a kind of multistage rainwater biological treatment The precast segment in pond, by precast segment modularization assembling, quick and easy for installation, short construction period, construct is influenced by live weather It is smaller.

To achieve the above objectives, the technical scheme adopted by the utility model is that：

A kind of precast segment of multistage rainwater biological treatment tank, it includes：

Prefabricated well body, is prefabricated with spaced two card slot in the well body, detachable peace respectively on two card slots Equipped with overflow wall and partition wall, the overflow wall is used to the well body being divided into be sequentially distributed and connect from front to back with the partition wall Settling tank, filtering ponds and blowoff basin, have prefabricated water outlet on the well body side wall opposite with the partition wall；

Prefabricated cover board, the cover board are used to cover the well body, are offered successively on the cover board described for connecting Settling tank, the water inlet of the filtering ponds and the blowoff basin, planting entrance and inspection socket.

On the basis of such scheme, the first discharge outlet is offered on the overflow wall.

On the basis of such scheme, overflow launder is reserved between the cover board at the top of the partition wall and bottom offers Second discharge outlet.

On the basis of such scheme, the well body bottom offers two card slots successively from front to back, described to overflow The bottom of stream wall and the partition wall is embedded in two card slots respectively from front to back；Or,

Offer two card slots on the well body two side successively from front to back, the two of the overflow wall and the partition wall Side is embedded in the card slot respectively from front to back；Or,

Two card slots, the overflow wall and the partition wall are offered successively from front to back on the well body bottom and two side Both sides and bottom be embedded in respectively from front to back in two card slots.

On the basis of such scheme, it is detachably fixed on the water inlet and is connected with drainage bucket, the drainage bucket bung hole Upper cover is equipped with openable flase floor.

On the basis of such scheme, the drainage bucket bucket wall upper end offers some overflow ports.

On the basis of such scheme, the planting entrance is equipped with openable tree Chi Gai, and the tree pond covers Offer plant and pass through hole.

On the basis of such scheme, the inspection socket is equipped with openable well lid.

The utility model additionally provides a kind of multistage rainwater biological treatment device, it includes：

The multistage rainwater being assembled into by the precast segment of any multistage rainwater biological treatment tank of claim 1 to 8 Biological treatment tank；The overflow wall and the partition wall are fixed on the well body inner wall and are divided into the well body from front to back successively The settling tank, the filtering ponds and the blowoff basin for being distributed and connecting；The cover board is covered in the well body；

The filtering ponds bottom is equipped with filtration and infiltration medium；

The perforated drain pipe for connecting the settling tank and the filtering ponds, the perforation draining are equipped with the overflow wall Pipe one end is stretched into the filtration and infiltration medium.

On the basis of such scheme, in the settling tank, the institute between the water inlet and the overflow wall The baffle for being additionally provided with and extending downwardly on cover board is stated, the lowermost end of the baffle is not higher than the top of the overflow wall.

Compared with prior art, the utility model has the advantage of：

The each precast segment of prefabricated processing pond is carried out in factory, and precast segment is subjected to modularization assembling, is avoided existing Field small space shuttering, cloth reinforcing bar or the difficulty built by laying bricks or stones；Processing pond is built by laying bricks or stones relative to overall, makes each precast segment, can To meet requirement of the transport to overall size, easy to ship；Advance prefabricated each precast segment, can customize various sizes in factory Structure and specification, meet the needs of different size processing pond；Each precast segment be transported to after being assembled in factory scene or Person is assembled at the scene, selects space big；Compared with cast-in-place processing pond, workload and the maintenance at scene can be greatly reduced In the cycle, simple installation is efficient, and later period maintenance is also convenient for, it is only necessary to replaces the part of damage, it is not necessary to disposed of in its entirety pond is replaced, Cost is saved, reduces and wastes；Each precast segment can be produced in locality, can save cost of transportation；Meanwhile relative to existing Pour, using modularization assembling, influenced by live weather smaller.

Brief description of the drawings

Fig. 1 is the precast segment structure diagram for the multistage rainwater biological treatment tank that the utility model embodiment provides；

Fig. 2 is the multistage rainwater biological treatment device structure diagram that the utility model embodiment provides；

In figure, A- settling tanks；B- filtering ponds；C- blowoff basins；1- well bodies；10- card slots；100- water outlets；11- overflow walls； The first discharge outlet of 110-；12- partition walls；120- overflow launders；The second discharge outlet of 121-；2- cover boards；20- water inlets；200- drainage buckets； 201- flase floors；202- overflow ports；21- planting entrances；210- trees Chi Gai；22- inspection sockets；220- well lids；23- baffles； 3- filtration and infiltration media；4- perforated drain pipes.

Embodiment

The utility model is described in further detail with reference to the accompanying drawings and embodiments.

Referring to shown in Fig. 1 and Fig. 2, the utility model embodiment provides prefabricated group of a kind of multistage rainwater biological treatment tank Part, it includes prefabricated well body 1 and prefabricated cover board 2；Spaced two card slot 10 is prefabricated with the well body 1, described in two Overflow wall 11 and partition wall 12 are detachably installed respectively on card slot 10, by dismountable mode, can be assembled at the scene, The overflow wall 11 is set from bottom to top with partition wall 12 from 1 bottom of well body, and is terminated at the cover board 2 close to the top of well body 1, is made Obtain and connected between settling tank A, filtering ponds B and blowoff basin C, the overflow wall 11 and the partition wall 12 are used to separate the well body 1 For settling tank A, the filtering ponds B and blowoff basin C for being sequentially distributed and connecting from front to back, the settling tank A bottom surfaces can be less than institute Filtering ponds B bottom surfaces are stated, settling tank is more successfully deposited on to enter the solid particles such as the silt in the rainwater of the settling tank A In A, there is prefabricated water outlet 100 on the well body 1 side wall opposite with the partition wall 12, that is, the water outlet 100 is located at In the blowoff basin C, discharged for rainwater that is clean and reaching discharge standard will to be handled；The cover board 2 is used to cover the well Body 1, the water inlet for connecting the settling tank A, the filtering ponds B and the blowoff basin C is offered on the cover board 2 successively 20th, planting entrance 21 and inspection socket 22.The water inlet 20 can also be arranged on wall top on front side of settling tank A, also may be used To be set along road surface both sides, can connect rain pipe or other into wetting system.Biomedia can be added in filtering ponds B, and Planting plants, such as tree, shrub, flower, grass etc., these plants can be stretched by planting mouth 21, the planting mouth 21 It can be also used for the installation, maintenance and inspection of filtering ponds B internal structures.

The utility model carries out each precast segment of prefabricated processing pond in factory, and precast segment is carried out modularization group Dress, avoids small space shuttering, cloth reinforcing bar or the difficulty built by laying bricks or stones at the scene；Processing pond is built by laying bricks or stones relative to overall, is made each Precast segment, can meet to transport the requirement to overall size, easy to ship；Advance prefabricated each precast segment in factory, can be with Various sizes structure and specification are customized, meets the needs of different size processing pond；Each precast segment can assemble in factory After be transported to scene or assembled at the scene, select space it is big；Compared with cast-in-place processing pond, the work at scene can be greatly reduced Measure and curing cycle, simple installation is efficient, and later period maintenance is also convenient for, it is only necessary to replace the part of damage, it is not necessary to more Disposed of in its entirety pond is changed, saves cost, reduces and wastes；Each precast segment can be produced in locality, can save cost of transportation；Together When, relative to cast-in-place, using modularization assembling, influenced by live weather smaller.

Referring to shown in Fig. 1 and Fig. 2, further, the first discharge outlet 110 is offered on the overflow wall 11.Described first 110 overflow wall 11 of discharge outlet is used to wear perforated drain pipe.

Referring to shown in Fig. 1 and Fig. 2, further, overflow launder is reserved between the top of partition wall 12 and the cover board 2 120 and bottom offer the second discharge outlet 121.Overflow launder 120 is used to connect filtering ponds B and the blowoff basin C.Second discharge outlet 121 are used to wear overflow pipe, as flushing channel.

Shown in Figure 1, further, 1 bottom of well body offers two card slots 10, institute successively from front to back The bottom for stating overflow wall 11 and the partition wall 12 is embedded in two card slots 10 respectively from front to back；Or, 1 both sides of well body Offer two card slots 10 on wall successively from front to back, the both sides of the overflow wall 11 and the partition wall 12 are distinguished from front to back It is embedded in the card slot 10；Or, offer two card slots 10, institute successively from front to back on 1 bottom of well body and two side The both sides of overflow wall 11 and the partition wall 12 and bottom is stated to be embedded in respectively from front to back in two card slots 10.

It can additionally carry out being detachably fixed connection, or joggle by way of ribs.

It is shown in Figure 2, further, it is detachably fixed on the water inlet 20 and is connected with drainage bucket 200, the drainage 200 bung hole upper covers of bucket are equipped with openable flase floor 201.

Drainage bucket 200 can use stainless (steel) wire to make, and drainage bucket 200 can intercept the rubbish that part is flowed with runoff rainwater Rubbish, drainage bucket top edge bore can be more than 20 bore of water inlet, can so be directly placed above, can also intake The side of mouth 20 sets hook, and hangers is set on drainage bucket 200；Carry particulate matter, suspended matter, floating material, nitrogen, phosphorus, oil and grease Initial rainwater Deng pollutant enters settling tank A through flase floor 201.

Shown in Figure 2, further, described 200 barrels of wall upper ends of drainage bucket offer some overflow ports 202.Work as rainwater Too big, rainwater can be flowed into settling tank A from overflow port 202 in drainage bucket 200, or rubbish too much will filter in drainage bucket 200 200 network interface of bucket blocks, and can also be flowed out by overflow port 202.

Shown in Figure 2, further, the planting entrance 21 is equipped with openable tree pond lid 210, the tree Plant, which is offered, on pond lid 210 passes through hole.

Shown in Figure 2, further, the inspection socket 22 is equipped with openable well lid 220.

Shown in Figure 2, the utility model also provides a kind of multistage rainwater biological treatment device, it includes：

The multistage rainwater biological treatment being assembled into by the precast segment of as above any multistage rainwater biological treatment tank Pond；The overflow wall 11 and the partition wall 12 are fixed on 1 inner wall of well body and are divided into the well body 1 to be divided successively from front to back Cloth and the settling tank A, the filtering ponds B and the blowoff basin C connected；The cover board 2 is covered in the well body 1；

The filtering ponds B bottoms are equipped with filtration and infiltration medium 3；The filtration and infiltration medium 3 is to spread successively from top to bottom If porous medium layer and Biomedia layer.It is preferred that kind has plant on Biomedia.Preferred plant is tree.The porous media Layer choosing is from gravel layer, metalling or its mixed layer.The Biomedia is selected from litter compost, float stone, peat soil, perlite, boiling One or more in stone, haydite, biological activated carbon or sand.Side at the top of the Biomedia layer close to overflow wall is equipped with Riprap.

The perforated drain pipe 4 for connecting the settling tank A and filtering ponds B is equipped with the overflow wall 11, it is described to wear Drainpipe 4 one end in hole is stretched into the filtration and infiltration medium 3.

The perforated drain pipe 4 is " L " type, vertical section in settling tank A, horizontal segment in filtering biological medium, preferred institute Horizontal segment is stated in Biomedia；Part further preferably in Biomedia is in net distribution.

It is shown in Figure 2, further, in the settling tank A, positioned at the water inlet 20 and the overflow wall 11 it Between the cover board 2 on be additionally provided with the baffle 23 extended downwardly, the lowermost end of the baffle 23 is not higher than the overflow wall 11 Top.Preferably, the baffle 23 is extended to below 11 top of overflow wall.

During rainfall, the initial rainwater warp of the pollutants such as particulate matter, suspended matter, floating material, nitrogen, phosphorus, oil and grease is carried Flase floor 201 enters well body, and drainage bucket 200 can intercept the pollutants such as rubbish bigger in initial rainwater, leaf.In gravity Under effect, some big particulate matters can then be deposited in settling tank A.

With the rising of water level in settling tank A, a small amount of rainwater is entered in filtration and infiltration medium 3 by perforated drain pipe 4, warp Blowoff basin C is emitted into after the processing of filtration and infiltration medium 3, and the rainwater in blowoff basin C is discharged through water outlet 100.

As water level continues to rise in settling tank A, when water level rises to the position at the top of overflow wall 11, rainwater then can Enter filtering ponds B from overflow above overflow wall 11.The bottom of baffle 23 is less than the wall top of overflow wall 11, floating material, oil and oil Fat can then be intercepted by baffle 23 ensures that floating material, oil and grease will not enter in settling tank A, rainwater from 23 flowing underneath of baffle Filtering ponds B.Into filtering ponds B rain penetration into filtration and infiltration medium 3, after the processing of filtered permeating medium 3, be discharged into Blowoff basin C, is finally drained by water outlet 100.

With the increase of rainfall, when rainfall is more than the maximum processing capability of filtration and infiltration medium 3, in filtering ponds B Water level may proceed to rise.When water level rises to the top of partition wall 12, rainwater directly overflows to blowoff basin C and drains.

When rainfall terminates, most of rainwater of settling tank A may proceed to enter filtration and infiltration medium 3 by perforated drain pipe 4 It is middle to drain after processing, ensure that the pollutant that drainage bucket 200 is collected will not soak in water, while be deposited in the particulate matter in shaft bottom Perforated drain pipe 4 will not be blocked.

Plant species is in filtration and infiltration medium 3, the material such as nitrogen, phosphorus in can drinking up the rain.Root system of plant can be with counterweight The pollutants such as metal are intercepted and adsorbed, while the microorganism around root system of plant can also drop organic pollution Solution.

When the enhanced Rain Garden disposal ability of integration declines, can also be maintained.Open flase floor 201st, pond lid 210 and well lid 220 are set, the inner case of well body can be observed, well body inside is safeguarded and handled.

The utility model is not limited to the above embodiment, for those skilled in the art, not On the premise of departing from the utility model principle, some improvements and modifications can also be made, these improvements and modifications are also considered as this reality Within new protection domain.The content not being described in detail in this specification belongs to known to professional and technical personnel in the field The prior art.

Claims (10)

1. a kind of precast segment of multistage rainwater biological treatment tank, it is characterised in that it includes：

Prefabricated well body (1), the well body (1) is interior to be prefabricated with spaced two card slot (10), divides on two card slots (10) Overflow wall (11) and partition wall (12) are not installed, the overflow wall (11) and the partition wall (12) are used for the well body detachably (1) be divided into the settling tank (A) for being sequentially distributed and connecting from front to back, filtering ponds (B) and blowoff basin (C), the well body (1) with There is prefabricated water outlet (100) on the opposite side wall of the partition wall (12)；

Prefabricated cover board (2), the cover board (2) are used to cover the well body (1), offer and be used for successively on the cover board (2) Connect the water inlet (20) of the settling tank (A), the filtering ponds (B) and the blowoff basin (C), planting entrance (21) and Inspection socket (22).

2. precast segment as claimed in claim 1, it is characterised in that：The first discharge outlet is offered on the overflow wall (11) (110)。

3. precast segment as claimed in claim 1, it is characterised in that：At the top of the partition wall (12) between the cover board (2) It is reserved with overflow launder (120) and bottom offers the second discharge outlet (121).

4. precast segment as claimed in claim 1, it is characterised in that：

Well body (1) bottom offers two card slots (10) successively from front to back, the overflow wall (11) and it is described every The bottom of wall (12) is embedded in two card slots (10) respectively from front to back；Or,

Offer two card slots (10) on well body (1) two side successively from front to back, the overflow wall (11) and described The both sides of partition wall (12) are embedded in the card slot (10) respectively from front to back；Or,

Offer two card slots (10) on well body (1) bottom and two side successively from front to back, the overflow wall (11) and The both sides and bottom of the partition wall (12) are embedded in two card slots (10) respectively from front to back.

5. precast segment as claimed in claim 1, it is characterised in that：It is detachably fixed on the water inlet (20) and is connected with filter Bucket (200), drainage bucket (200) the bung hole upper cover are equipped with openable flase floor (201).

6. precast segment as claimed in claim 5, it is characterised in that：Drainage bucket (200) the bucket wall upper end offers some Overflow port (202).

7. precast segment as claimed in claim 1, it is characterised in that：The planting entrance (21) is equipped with openable Chi Gai (210) is set, offering plant on the tree Chi Gai (210) passes through hole.

8. precast segment as claimed in claim 1, it is characterised in that：The inspection socket (22) is equipped with openable well lid (220)。

9. a kind of multistage rainwater biological treatment device, it is characterised in that it includes：

The multistage rainwater biology being assembled into by the precast segment of any multistage rainwater biological treatment tank of claim 1 to 8 Processing pond；The overflow wall (11) and the partition wall (12) be fixed on the well body (1) inner wall and by the well body (1) be divided into from The settling tank (A), the filtering ponds (B) and the blowoff basin (C) for being sequentially distributed and connecting after going to；The cover board (2) It is covered in the well body (1)；

Filtering ponds (B) bottom is equipped with filtration and infiltration medium (3)；

The perforated drain pipe (4) for connecting the settling tank (A) and the filtering ponds (B), institute are equipped with the overflow wall (11) Perforated drain pipe (4) one end is stated to stretch into the filtration and infiltration medium (3).

10. processing unit as claimed in claim 9, it is characterised in that：

In the settling tank (A), on the cover board (2) between the water inlet (20) and the overflow wall (11) also The baffle (23) extended downwardly is provided with, the lowermost end of the baffle (23) is not higher than the top of the overflow wall (11).