Background technology
Existing tree case adopts concreting mostly, or van-type structure, perforate on road kerb, installs rain perforaled strainer, then covers reinforced concrete cover plate.Concrete material is airtight, and the rainwater of storage can go bad, and has had a strong impact on Rainwater Quality, is unfavorable for arboreal growth and tree root respiration.Concrete material need consume a large amount of rocks or land resources, and builds, transport and install inconvenience, costly.
In existing tree case, rainwater directly can be drained through inlet for stom water, can not recycle rainwater resource.Along with Development of Urbanization aggravation, a large amount of rainfall runofves process just directly discharge, increases the burden of urban sewerage and drainage facility, particularly early-stage rainwater and is doped with a large amount of earth's surface pollutants, flows into river course and makes river water quality blackout, smelly.
Large quantifier elimination shows, rainfall runoff has obvious first flush effect, and namely as a rule, pollutant concentrates in the several millimeters of rainfall at initial stage.Early-stage rainwater runoff has that flow is large, impact is strong, pollution load high, and carrying out the comprehensive regulation has become important emerging problem.Rainwater is in descent, dissolved gas in air, dissolve or suspension solid, heavy metal and bacterium etc. can enter wherein, pollutant in surface flow is mainly from rainfall washing away earth's surface, so surface sediments is the main source of pollutant in surface flow.Surface sediments comprises many pollutants, has solid-state castoff chip, as municipal refuse, animal wastes, Urban Building Construction place deposit; Chemicals, as fertilizer and pesticide, vehicle emission etc. that lawn is used.Its sedimental source, earth's surface with different land use function is different, thus rainwater water quality can because of the difference of place, time difference to some extent.
In view of the defect of above-mentioned prior art, need to provide a kind of and be beneficial to arboreal growth and can the rainwater purification tree case system of purifying rainwater.
Utility model content
(1) technical problem that will solve
The technical problems to be solved in the utility model is that existing tree case adopts concreting mostly, or van-type structure, perforate on road kerb, installs rain perforaled strainer, then covers reinforced concrete cover plate.Concrete material is airtight, and the rainwater of storage can go bad, and has had a strong impact on Rainwater Quality, is unfavorable for arboreal growth and tree root respiration.Concrete material need consume a large amount of rocks or land resources, and builds, transport and install inconvenience, costly.In tree case, rainwater directly can be drained through inlet for stom water, can not recycle rainwater resource.Along with Development of Urbanization aggravation, a large amount of rainfall runofves is not just processed directly discharge, increases the problem of the burden of urban sewerage and drainage facility.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides a kind of rainwater purification tree case system.This rainwater purification tree case system comprises rainwater purification tree case, water inlet pipe, outlet pipe and collects well, and described rainwater purification tree case is communicated with described collection well by described water inlet pipe; Described rainwater purification tree case comprises: outer wall, the first cover plate be connected with outer wall and base plate; Drainage layer and the second soil layer is disposed with from the bottom to top respectively in described rainwater purification tree case, the water side of described water inlet pipe is positioned at the described drainage layer of close described base plate through described outer wall, the water inlet end of described outlet pipe is positioned at the described drainage layer of close described base plate through described outer wall, the water side of described outlet pipe is positioned at the below of described base plate.
Wherein, also comprise the first soil layer and be laid on the second cover plate on the first soil layer, described rainwater purification tree case is positioned at described first soil layer through described second cover plate, and described first cover plate is positioned at the top of described second cover plate, and described outer wall and the second cover plate are silica sand pervious layer.
Wherein, described drainage layer comprises the first drainage layer and the second drainage layer, and described first drainage layer is between described second soil layer and the second drainage layer, and the water side of described water inlet pipe is positioned at described second drainage layer.
Wherein, described first drainage layer is silica sand pervious layer, and described second drainage layer is macadam.
Wherein, be provided with described drainage layer in described collection well, the water inlet end of described water inlet pipe is positioned at described drainage layer.
Wherein, described first cover plate is provided with multiple air vent.
Wherein, also comprise ventilating pipe, one end of described ventilating pipe is corresponding with described air vent to be arranged, and the other end is communicated with the water side of described water inlet pipe, and the junction of described ventilating pipe and water inlet pipe is provided with multiple weep hole.
Wherein, also comprise base, described rainwater purification tree case and collection well are all arranged on described base.
Wherein, removably connect between described first cover plate, outer wall and base plate.
Wherein, be also provided with hypothallus in described rainwater purification tree case, described hypothallus is positioned at the top of described second soil layer.
(3) beneficial effect
Technique scheme tool of the present utility model has the following advantages: in the rainwater purification tree case system that the utility model provides, rainwater purification tree case is communicated with collection well by water inlet pipe; Rainwater purification tree case comprises: outer wall, the first cover plate be connected with outer wall and base plate; Drainage layer and the second soil layer is disposed with from the bottom to top respectively in rainwater purification tree case, the water side of water inlet pipe is positioned at the drainage layer of close base plate through outer wall, the water inlet end of outlet pipe is positioned at the drainage layer of close base plate through outer wall, the water side of outlet pipe is positioned at the below of base plate.Collect well in the rainwater purification tree case system that the utility model provides and collect rainwater, effective purifying rainwater after rainwater purification tree case filters, recycling after purifying rainwater, has the advantage of good purification and energy conservation.
Detailed description of the invention
In description of the present utility model, except as otherwise noted, the implication of " multiple " is two or more; Term " on ", D score, "left", "right", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of the machine of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is described in further detail.Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.
As depicted in figs. 1 and 2, the rainwater purification tree case system that the utility model embodiment provides comprises: rainwater purification tree case 1, water inlet pipe 3, outlet pipe 8 and collection well 4, and rainwater purification tree case 1 is communicated with collection well 4 by water inlet pipe 3; Rainwater purification tree case 1 comprises: outer wall 15, the first cover plate 11 and the base plate be connected with outer wall 15; Be disposed with drainage layer and the second soil layer 7 from the bottom to top respectively in rainwater purification tree case, be also provided with hypothallus 12 above the second soil layer 7 in the present embodiment, hypothallus 12 is the materials such as leaf, as the nutrient absorption layer of plant.The water side of water inlet pipe 3 through outer wall 15, and is positioned at the drainage layer near base plate.Part water flow to drainage layer from water inlet pipe 3, enters the water after being filtered in the second soil layer 7 after filtration from bottom to top and recycled by the plant absorption set in case after water layer impurity screening.The water inlet end of outlet pipe 8 is positioned at the drainage layer of close base plate through outer wall 15, the water side of outlet pipe 8 is positioned at the below of base plate.Part water enters then outlet pipe 8 lead to base plate from the water inlet end of outlet pipe 8, recharge groundwater.
Outer wall 15 place of the side that in the present embodiment, the water side of water inlet pipe 3 is passed near water inlet pipe 3, outer wall 15 place of the side that the water inlet end of outlet pipe 8 passes away from water inlet pipe 3, make part rainwater can enter filtration beds to filter, then enter outlet pipe 8 remittance benefit underground water.In the present embodiment, the water side of water inlet pipe 3 can be communicated with the water inlet end of outlet pipe 8, and connectivity part is provided with weep hole 16.Adopt the water side of two rainwater purification tree casees, 1, two outlet pipes 8 to be communicated with in the present embodiment, junction is provided with weep hole, and weep hole is positioned at the below of base plate.Underground is instilled by weep hole after part water in two rainwater purification tree casees 1 can being collected.Soil in the present embodiment below base plate is the soil layer of compacting, and shipwreck is to infiltrate the soil layer below compacting soil layer, and setting out water pipe 8 can converge the rainwater after purification with benefit to sub-surface.Also can be provided with reservoir below the weep hole of the junction, water side of two outlet pipes 8 in the present embodiment, the rainwater after purification flow to reservoir from weep hole, and the rainwater in reservoir can recycling.
The rainwater purification tree case system that the present embodiment provides also comprises the first soil layer 5 and is laid on the second cover plate 6 on the first soil layer 5, rainwater purification tree case 1 is positioned at the first soil layer 5 through the second cover plate 6, first cover plate 11 is positioned at the top of the second cover plate 6, the outer wall 15 of rainwater purification tree case 1, collect the outer wall of well 4, and the second cover plate 6 all adopts silica sand pervious layer.Water can flow into the first soil layer 5 from the second cover plate 6, more only sets in the outer wall 15 of case 1 and the outer wall inflow rainwater purification tree case 1 of collection well 4 by rainwater or collect in well 4.
Drainage layer in the rainwater purification tree case system that the present embodiment provides comprises the first drainage layer 13 and the second drainage layer 14, adopts two-layer drainage layer, but be not limited to two-layer in the present embodiment.First drainage layer 13 is between the second drainage layer 14 and the second soil layer 7, and namely the first drainage layer 13 is positioned at the top of the second drainage layer 14.Second drainage layer 14 is for the larger impurity of filtering particle, and the first drainage layer 13 is for the less impurity of filtering particle, and double medium filtration is effective.The macadam that in the present embodiment, the second drainage layer 14 forms for rubble, in order to good filtration effect, in the present embodiment, the first filtration beds 13 is also silica sand pervious layer.
Silica sand pervious layer in the rainwater purification tree case system that the present embodiment provides is prior art, and namely the mixture solidified of silica sand and adhesive is formed, and water is seeped water by the capillary tube of silica sand pervious layer, is not easy to be blocked by dust.Can either remove pollutant and can breathe freely, so outer wall 15 adopts silica sand pervious layer, rainwater undergoes no deterioration.The rainwater purification tree case system that the present embodiment provides has very high clearance to pollutant.Pollutants removal rate is as shown in table 1, makes the water quality after removing reach as shown in table 2.
Table 1
Table 2
In order to increase the gas permeability of rainwater purification tree case system, the present embodiment is also provided with multiple air vent on the first cover plate 11, for ventilation.In order to make gas permeability better, the present embodiment also comprises ventilating pipe, and one end of ventilating pipe is corresponding with air vent to be arranged, and namely one end of ventilating pipe is positioned at the below of air vent.The other end of ventilating pipe is connected with the water side of water inlet pipe 3.The junction of ventilating pipe and water inlet pipe 3 is provided with multiple weep hole 16, and weep hole 16 is positioned at the second drainage layer 14.Air enters in drainage layer through air vent, ventilating pipe and weep hole 16.
Conveniently carry, removably connect between the first cover plate 11, outer wall 15 and base plate in the rainwater purification tree case system that the present embodiment provides.The method that foreign material are removed and detailed process comprise: precipitation, filtration, adsorption/absorption, cation exchange, polar/non-polar absorption, aerobic/anaerobic microbial decomposition, digestion, anti-digestion process, plant retain with absorb, carbon containing and metal Cycle of nutrients, silica sand device are regulated and stored, volatilize/evaporate, rainwater storage is fresh-keeping, rainwater recycles.
Rainwater purification that the present embodiment provides tree case system can be applied to municipal engineering field, purifies, recycles rainwater, reduce city rainfall runoff, alleviate municipal drainage pressure, be a kind of rainwater self-purification efficiently, regulates and stores and biology retains technology.This technology set plant and advanced silica sand pervious layer, can make the bacterium in rainwater, metallics, greasy dirt, suspension etc. be able to self-purification and remove; This system adopts silica sand goods, ecological, environmental protective safety, and modularization assembling is convenient, has very large promotion and protective effect to the growth of tree box planting thing.Solve city rain water inlet pipe network collect less than or can not draining in time and cause urban pavement ponding or a urban waterlogging difficult problem, simultaneously perfect urban rainwater drainage system, achieves rain water purification, storing and fresh-keeping and recycles.Solve urban plant greening water requirement, decrease the exploitation of groundwater resources.This technology convenient later maintenance, is applicable to newly-built and reconstruction and extension project, and the assembling mode of Demountable modular is convenient, and size and the large I of tree case change according to the actual requirements.
In the rainwater purification tree case system that the utility model provides, the number of rainwater purification tree case can be single or multiple, changes number according to demand.Collect in well 4 in rainwater purification tree case system and be provided with drainage layer.Collect well 4 and be disposed with silica sand pervious layer and macadam from top to bottom, the water inlet end of water inlet pipe 3 is positioned at the macadam collecting well 4.Collect well 4 to be entered after the rainwater-collecting on road surface also precipitation in rainwater purification tree case by water inlet pipe 3.Solve city rain water inlet pipe network collect less than or can not draining in time and cause urban pavement ponding or a urban waterlogging difficult problem.
Also comprise base 2 and the second cover plate 6 in the rainwater purification tree case system that the utility model provides, the base plate of rainwater purification tree case 1 and the base plate of collection well 4 are all arranged on base 2.Base 2 is positioned in the first soil layer 5, collects well 4, rainwater purification tree case 1 is all positioned in the first soil layer 5.Second cover plate 6 is laid on the first soil layer 5, and rainwater purification tree case 1 and collection well 4 are all arranged through the second cover plate 6.First cover plate 11 is positioned at the top of the second cover plate 6, and the top of collecting well 4 flushes with the second cover plate 6.In the present embodiment, the weep hole of outlet pipe 8 is arranged at 1.5 meters of under base plate, can rainwater be got rid of, and it is rotten to prevent hydropexis from occurring in rainwater purification tree case 1.
When the utility model rainwater purification tree case system uses: the first cover plate 11, outer wall 15 and floor combination are become rainwater purification to set case 1, the rainwater major part of collecting after well 4 purification enters collects in well 4, rainwater is filtered by the drainage layer collected in well 4, and the rainwater after filtration enters the second drainage layer 14 in rainwater purification tree case 1 by water inlet pipe 3.Enter the first drainage layer 13 after being filtered by the second drainage layer 14 to filter, then enter in the second soil layer 7, by plant absorption moisture, recycle rainwater, fraction rainwater flow to the underground below base plate by outlet pipe 8, converges and mends underground water.Rainwater after the filtration of the second cover plate 6 enters in the first soil layer 5, then collects in well 4 or rainwater purification tree case 1 by entering after the filtration of the outer wall 15 of collecting the outer wall of well 4 or rainwater purification tree case 1, by plant absorption moisture, or converges benefit underground water by outlet pipe 8.
In sum, the utility model has the following advantages: in the rainwater purification tree case system that the utility model provides, rainwater purification tree case is communicated with collection well by water inlet pipe; Rainwater purification tree case comprises: outer wall, the first cover plate be connected with outer wall and base plate; Drainage layer and the second soil layer is disposed with from the bottom to top respectively in rainwater purification tree case, the water side of water inlet pipe is positioned at the drainage layer of close base plate through outer wall, the water inlet end of outlet pipe is positioned at the drainage layer of close base plate through outer wall, the water side of outlet pipe is positioned at the below of base plate.Collect well in the rainwater purification tree case system that the utility model provides and collect rainwater, effective purifying rainwater after rainwater purification tree case filters, recycling after purifying rainwater, has the advantage of good purification and energy conservation.
Further, the filtration beds of rainwater purification tree case adopts silica sand pervious layer, can impurity effectively in filtered water, purifies and recycles rainwater.
Above embodiment only in order to the technical solution of the utility model to be described, is not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.