CN105756295B - A kind of Rainwater Resources in Urban Area reutilization system based on pelelith - Google Patents
A kind of Rainwater Resources in Urban Area reutilization system based on pelelith Download PDFInfo
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- CN105756295B CN105756295B CN201610122481.2A CN201610122481A CN105756295B CN 105756295 B CN105756295 B CN 105756295B CN 201610122481 A CN201610122481 A CN 201610122481A CN 105756295 B CN105756295 B CN 105756295B
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- pelelith
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
- Y02A30/254—Roof garden systems; Roof coverings with high solar reflectance
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
- Y02B80/32—Roof garden systems
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
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Abstract
The present invention relates to a kind of Rainwater Resources in Urban Area reutilization system based on pelelith, the system is arranged on the plane roof of building, the gathering ground that the system includes composite plant cover area, the rainwater conflux area being circumferentially positioned at successively from inside to outside around composite plant cover area, barricade and pedestrian area, is connected by roofing collector pipe with rainwater conflux area, the composite plant cover area includes water barrier, drainage blanket, coarse filtration floor, aquifer, planting matrix floor and the vegetable layer from bottom to top set gradually, and the drainage blanket is connected by roof drainage pipe with gathering ground.Compared with prior art, present system overall structure is simple, and construction is convenient, takes into account the purification and utilization controlled flood and drained flooded fields with rainwater of urban architecture, can effectively improve the survival rate of building roof afforestation vegetation, has obvious economic benefit and environmental benefit.
Description
Technical field
The invention belongs to inorganic material applied technical field, and it is sharp again to be related to a kind of Rainwater Resources in Urban Area based on pelelith
Use system.
Background technology
Aggravate with global warming and with water resource assignment deficiency, the precipitation institute of short time in urban precipitation type
Accounting weight constantly rises, and is easy to cause urban waterlogging disaster in a short time in the case where sewerage system not enough improves, right
People's normal life causes inconvenience.It can be seen from the above that solution effectiveness factors are extremely urgent, but sewerage system is in short-term
In be difficult to it is perfect.
Pelelith is a kind of construction material enriched in nature reserves.Transported extensively in feudal dynasty's period of China
For garden setting, then largely apply to flower planting, indoor and outdoor landscape design etc. in today's society.Pelelith has porosity
Greatly, the good characteristic such as acid and alkali-resistance, corrosion-resistant, insulation, sound absorption.
Currently, roof greening rises as one upsurge in China, this technology can to a certain extent be played and controlled flood and drained flooded fields
Effect, and can effectively reduce urban heat land effect, improve resident living comfort level.But current roof afforestation structure is actually being set
Problems with is primarily present during meter use：1) roof plants survival rate is low, especially needs great effort to arrange in dry season；2)
The rainwater of the overwhelming majority is difficult to store in a small amount of soil, most of to be discharged to underground by pipeline to be lost in；3) existing one
A little rainwater storage systems are difficult to the flushing for being supplied to washroom since the water storage time is long, rainwater is of poor quality, water storage water quality is excessively poor
Deng to the minimum indoor domestic water of water quality requirement；4) rarely has the synthesis for being combined roof greening technology with rainwater harvesting technology
System.
The Chinese invention patent of Application No. 201410603517.X discloses a kind of Urban Roof greening flood control structure, bag
Dirt bed, aquifer, the water barrier for being arranged on and being from top to bottom stacked above roofing board are included, wherein the aquifer is by some
Water storage brick is spliced to form, wherein the water storage brick by pelelith by glue stick it is viscous form, the thickness of the water storage brick is 5cm,
8cm or 10cm, the water storage brick press 1 by 3-6cm and 6-12cm particle diameter stones quantity:3 ratio is combined.The patent disclosure
Technical solution be using pelelith as raw material build roof prevent waterlogging afforestation project aquifer, by adding fire in roof greening
Mountain stone aquifer is to mitigate urban waterlogging influence, although the function of controlling flood and draining flooded fields of roof greening, its technique effect can be realized
It is limited, it can not realize the filtering of rainwater and collect recycling, be further improved.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide one kind can take into account city
The purification and utilization controlled flood and drained flooded fields with rainwater of building, and improve the survival rate of building roof afforestation vegetation based on pelelith
Rainwater Resources in Urban Area reutilization system.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of Rainwater Resources in Urban Area reutilization system based on pelelith, the system are arranged on the plane roof of building
On, the system include composite plant cover area, be circumferentially positioned at successively from inside to outside around composite plant cover area rainwater conflux area,
Barricade and pedestrian area, the gathering ground being connected by roofing collector pipe with rainwater conflux area, the composite plant cover area include by
Water barrier, drainage blanket, coarse filtration layer, aquifer, planting matrix layer and the vegetable layer set gradually on down, the drainage blanket
It is connected by roof drainage pipe with gathering ground.
The pelelith that the pelelith that the aquifer is 3-6mm by particle diameter is 6-12mm with particle diameter is 3-5 by volume:
2 mix.
The thickness of the aquifer is 80-120mm.
The pelelith that the pelelith that the coarse filtration layer is 3-6mm by particle diameter is 6-12mm with particle diameter is 2-3 by volume:
1 mixes.
The thickness of the coarse filtration layer is 40-60mm.
The coarse filtration layer is mainly the little particle filtered out in rainwater, prevents from blocking the discharge outlet of roof drainage pipe, reaches
To the effect of preliminary purification Rainwater Quality.
The drainage blanket is laid with by the haydite that particle diameter is 12-20mm and formed.
The haydite is one kind in gravel haydite or spheroidal haydite.
The drainage blanket main function is to ensure that rainwater smoothly enters the discharge outlet of roof drainage pipe, and then flows into and catchment
Area, prevents roof ponding.
The water barrier is waterproof roll, prevents roofing from producing rainwater infiltration influence inhabitation effect behind crack.
Filter bed of essence is equipped with the gathering ground, which is laid with by the acid treatment pelelith that particle diameter is 3-6mm and formed.
As preferable technical solution, the gathering ground is made of the water storage box being connected with roof drainage pipe, after collection
Rainwater be stored in gathering ground, for used in resident living.
The treatment conditions of the acid treatment pelelith are：The pelelith that particle diameter is 3-6mm is chosen, is cleaned repeatedly with water,
When removing impurity, then being placed in that immersion treatment 10-24 is small in the hydrochloric acid solution of 0.1-0.5mol/L, acid solution is then filtered out, with distillation
Water washing is to neutrality.
As preferable technical solution, the gradient in the composite plant cover area is 2-3%.
The planting matrix layer is formed by the component mix comprising following components and parts by weight content：Organic matter 20-30
Part, 40-50 parts of garden mould, 15-20 parts of coarse sand.
The planting matrix layer also contains water-retaining agent, and the dosage of water-retaining agent is 30-50g/m2。
Wherein, organic matter is northeast turfy soil, and garden mould is planting technique soil, and garden mould particle diameter is less than or equal to 2cm；Coarse sand
For coarse-grained soil, the particle maximum particle diameter of coarse-grained soil is less than 50mm, and wherein granule content of the particle diameter less than 40mm is no less than 85%,
Coarse sand selects river sand or mountain husky；Water-retaining agent is high-hydroscopicity Sodium Polyacrylate or polyacrylic acid.
In present system, composite plant cover area is the major function floor of roof greening, realizes ecology, the landscape of roof greening
Deng various functions, while the visual effect of building vertical view is improved, wherein, planting matrix layer provides space for the growth of plant,
Part rainwater can be absorbed at the same time, moisture and nutrient are provided for plant.Green plants is planted in planting matrix layer, and by compound
Vegetation region rainwater harvest.When actually building, composite plant cover area must be carried out looking for slope with cement mortar, and gradient 2-3%, ensures rain
Water all collects, and does not produce ponding.Rainwater conflux area is connected by roofing collector pipe with gathering ground, and rainwater is in rainwater conflux area
After confluence, entered by roofing collector pipe in gathering ground；And the setting in pedestrian area mainly for maintain roofing normal function and
Roofing maintenance of equipment provides traffic space；Rainwater after collection is stored in gathering ground for used in resident living.
Compared with prior art, the invention has the characteristics that：
1) aquifer in composite plant cover area, coarse filtration floor use pelelith, since the porosity of pelelith is high, heat-insulating property
It is good, heat-insulated effect is on the one hand played on roof, is conducive to the energy conservation and environmental protection of building, another aspect aquifer is located at the root of plant
Portion, is conducive to keep in the winter time the temperature of plant root, improves the survival rate of roof greening plant；
2) due to setting filter bed of essence in gathering ground, and it is combined, can be realized to rain with the coarse filtration floor in composite plant cover area
The double filtration removal of impurities of water, further improves the clean-up effect of rainwater, ensures that purified rainwater disclosure satisfy that reclaimed water
Basic demand, and then realize the collection, purification, recycling of rainwater；
3) overall system architecture is simple, and construction is convenient, takes into account the purification and utilization controlled flood and drained flooded fields with rainwater of urban architecture,
The survival rate of building roof afforestation vegetation can be effectively improved, there is obvious economic benefit and environmental benefit.
Brief description of the drawings
Fig. 1 is present system overall structure diagram；
Fig. 2 is the cross-sectional view in composite plant cover area in present system；
Fig. 3 is the cross-sectional view of gathering ground in present system；
Description of symbols in figure：
1-composite plant cover area, 2-rainwater conflux area, 3-barricade, 4-pedestrian area, 5-water barrier, 6-drainage blanket, 7-
Coarse filtration layer, 8-aquifer, 9-planting matrix layer, 10-vegetable layer, 11-gathering ground, 12-filter bed of essence, 13-water inlet,
14-water outlet.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1：
As shown in Figure 1, a kind of Rainwater Resources in Urban Area reutilization system based on pelelith, the system are arranged on building
Plane roof on, system includes composite plant cover area 1, the rainwater that is circumferentially positioned at successively from inside to outside around composite plant cover area 1
Doab 2, barricade 3 and pedestrian area 4, the gathering ground 11 being connected by roofing collector pipe with rainwater conflux area 2.As shown in Fig. 2,
Composite plant cover area 1 includes water barrier 5, drainage blanket 6, coarse filtration floor 7, aquifer 8, the planting matrix floor 9 from bottom to top set gradually
And vegetable layer 10, drainage blanket 6 are connected by roof drainage pipe with gathering ground 11.
Wherein, the pelelith that the pelelith that aquifer 8 is 3mm by particle diameter is 6mm with particle diameter is 3 by volume:2 mixing and
Into the thickness of aquifer 8 is 100mm；The pelelith that the pelelith that coarse filtration layer 7 is 6mm by particle diameter is 12mm with particle diameter is by volume
Than for 2:1 mixes, and the thickness of coarse filtration layer 7 is 50mm；Drainage blanket 6 is laid with by the haydite that particle diameter is 12mm and formed.Haydite is
Spheroidal haydite.Water barrier 5 is waterproof roll.
As shown in figure 3, filter bed of essence 12 is equipped with gathering ground 11, acid treatment pelelith of the filter bed of essence 12 by particle diameter for 3mm
Laying forms.Wherein, gathering ground 11 is additionally provided with the water inlet 13 being connected with drainage blanket 6 and the water pipe phase with reclaimed water
The water outlet 14 of connection.
The treatment conditions of acid treatment pelelith are：The pelelith that particle diameter is 3mm is chosen, is cleaned repeatedly with water, removes impurity,
When being placed in that immersion treatment 24 is small in the hydrochloric acid solution of 0.2mol/L again, acid solution is then filtered out, is washed with distilled water to neutrality.
Planting matrix layer 9 is formed by the component mix comprising following components and parts by weight content：30 parts of organic matter, garden mould 50
Part, 20 parts of coarse sand.Planting matrix layer 9 also contains water-retaining agent, and the dosage of water-retaining agent is 50g/m2.Wherein, organic matter is northeast grass
Charcoal soil, garden mould are planting technique soil, and garden mould particle diameter is less than or equal to 2cm；Coarse sand is coarse-grained soil, the particle maximum grain of coarse-grained soil
Footpath is less than 50mm, and wherein granule content of the particle diameter less than 40mm is no less than 85%, and coarse sand selects river sand；Water-retaining agent is high water absorption
Property Sodium Polyacrylate.
During generation rainfall, after planting matrix floor 9 of the rainwater in composite plant cover area 1 is by initial absorption, under be seeped into aquifer 8
In, rainwater is fully absorbed by pelelith, and after the water suction of aquifer 8 reaches saturation, pelelith is filled up by rainwater, and unnecessary rainwater is saturating
Cross aquifer 8 and reach coarse filtration layer 7.In coarse filtration layer 7, the slightly solubility impurity in rainwater is removed by the hole in pelelith,
The little particle in rainwater is effectively filtered out, slightly solubility impurity content significantly reduces in water quality at this time, meets reclaimed water
Basic demand., cannot be by the rainwater conflux that aquifer 8 is kept to roofing in drainage blanket 6 after rainwater passes through coarse filtration layer 7
Drainage system, is pooled in gathering ground 11 by roof drainage pipe.The rainwater tentatively filtered in gathering ground 11 obtains sour place
The further purification of pelelith is managed, most of impurity is adsorbed by it in water.Purified rainwater is stored in conduct in gathering ground 11
The reclaimed water of resident.
After rainfall stops, the rainwater absorbed in planting matrix layer 9 is utilized by the plant in vegetable layer 10, is supplying plant just
Normal vital movement.Planting matrix layer 9 is close to after drying, and the rainwater of pelelith absorption receives solar radiation and enters in aquifer 8
In planting matrix layer 9, the moisture in planting matrix layer 9 has been fed, the moisture of abundance and suitable is provided for the growth of plant
Soil environment.Simultaneously as the porosity of pelelith is high, good heat insulating, on the one hand plays heat-insulated effect, favorably on roof
In the energy conservation and environmental protection of building, another aspect aquifer 8 is located at the root of plant, is conducive to keep the temperature of plant root in the winter time
Degree, improves the survival rate of roof greening plant.
Embodiment 2：
In the present embodiment, the pelelith that pelelith that aquifer 8 is 6mm by particle diameter is 12mm with particle diameter is 5 by volume:
2 mix, and the thickness of aquifer 8 is 120mm；The pelelith that the pelelith that coarse filtration layer 7 is 6mm by particle diameter is 12mm with particle diameter
It is 3 by volume:1 mixes, and the thickness of coarse filtration layer 7 is 60mm；Drainage blanket 6 is laid with by the haydite that particle diameter is 20mm and formed.
Filter bed of essence 12 is laid with by the acid treatment pelelith that particle diameter is 6mm and formed in gathering ground 11.Wherein, acid treatment pelelith
Treatment conditions be：The pelelith that particle diameter is 6mm is chosen, is cleaned repeatedly with water, removes impurity, then be placed in the hydrochloric acid of 0.1mol/L
When immersion treatment 24 is small in solution, acid solution is then filtered out, is washed with distilled water to neutrality.
Planting matrix layer 9 is formed by the component mix comprising following components and parts by weight content：20 parts of organic matter, garden mould 40
Part, 15 parts of coarse sand.Planting matrix layer 9 also contains water-retaining agent, and the dosage of water-retaining agent is 30g/m2.Wherein, organic matter is northeast grass
Charcoal soil, garden mould are planting technique soil, and garden mould particle diameter is less than or equal to 2cm；Coarse sand is coarse-grained soil, the particle maximum grain of coarse-grained soil
Footpath is less than 50mm, and wherein granule content of the particle diameter less than 40mm is no less than 85%, and coarse sand selects mountain husky；Water-retaining agent is polypropylene
Acid.
Remaining is the same as embodiment 1.
Embodiment 3：
In the present embodiment, the pelelith that pelelith that aquifer 8 is 5mm by particle diameter is 8mm with particle diameter is 4 by volume:2
Mix, the thickness of aquifer 8 is 80mm；Pelelith that coarse filtration layer 7 is 4mm by particle diameter and the pelelith that particle diameter is 10mm by
Volume ratio is 2:1 mixes, and the thickness of coarse filtration layer 7 is 40mm；Drainage blanket 6 is laid with by the haydite that particle diameter is 15mm and formed.Pottery
Grain is gravel haydite.
Filter bed of essence 12 is laid with by the acid treatment pelelith that particle diameter is 4mm and formed in gathering ground 11.Wherein, acid treatment pelelith
Treatment conditions be：The pelelith that particle diameter is 4mm is chosen, is cleaned repeatedly with water, removes impurity, then be placed in the hydrochloric acid of 0.5mol/L
When immersion treatment 10 is small in solution, acid solution is then filtered out, is washed with distilled water to neutrality.
Planting matrix layer 9 is formed by the component mix comprising following components and parts by weight content：24 parts of organic matter, garden mould 48
Part, 18 parts of coarse sand.Planting matrix layer also contains water-retaining agent, and the dosage of water-retaining agent is 42g/m2。
Wherein, organic matter is northeast turfy soil, and garden mould is planting technique soil, and garden mould particle diameter is less than or equal to 2cm；Coarse sand
For coarse-grained soil, the particle maximum particle diameter of coarse-grained soil is less than 50mm, and wherein granule content of the particle diameter less than 40mm is no less than 85%,
Coarse sand selects river sand；Water-retaining agent is polyacrylic acid.
Remaining is the same as embodiment 1.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using invention.
Person skilled in the art obviously easily can make these embodiments various modifications, and described herein general
Principle is applied in other embodiment without by performing creative labour.Therefore, the invention is not restricted to above-described embodiment, ability
Field technique personnel disclose according to the present invention, do not depart from improvement that scope made and modification all should be the present invention's
Within protection domain.
Claims (7)
1. a kind of Rainwater Resources in Urban Area reutilization system based on pelelith, the system are arranged on the plane roof of building
On, it is characterised in that the system includes composite plant cover area (1), is circumferentially positioned at composite plant cover area (1) successively from inside to outside
Around rainwater conflux area (2), barricade (3) and pedestrian area (4), be connected by roofing collector pipe with rainwater conflux area (2)
Gathering ground (11), the composite plant cover area (1) include the water barrier (5), drainage blanket (6), coarse filtration from bottom to top set gradually
Layer (7), aquifer (8), planting matrix layer (9) and vegetable layer (10), the drainage blanket (6) pass through roof drainage pipe and collection
Pool (11) is connected；
Filter bed of essence (12), acid treatment pelelith of the filter bed of essence (12) by particle diameter for 3-6mm are equipped with the gathering ground (11)
Laying forms；
The gradient in the composite plant cover area is 2-3%；
The pelelith that the pelelith that the aquifer (8) is 3-6mm by particle diameter is 6-12mm with particle diameter is 3-5 by volume:2
Mix；
The pelelith that the pelelith that the coarse filtration layer (7) is 3-6mm by particle diameter is 6-12mm with particle diameter is 2-3 by volume:1
Mix.
A kind of 2. Rainwater Resources in Urban Area reutilization system based on pelelith according to claim 1, it is characterised in that
The thickness of the aquifer (8) is 80-120mm.
A kind of 3. Rainwater Resources in Urban Area reutilization system based on pelelith according to claim 1, it is characterised in that
The thickness of the coarse filtration layer (7) is 40-60mm.
A kind of 4. Rainwater Resources in Urban Area reutilization system based on pelelith according to claim 1, it is characterised in that
The drainage blanket (6) is laid with by the haydite that particle diameter is 12-20mm and formed.
A kind of 5. Rainwater Resources in Urban Area reutilization system based on pelelith according to claim 4, it is characterised in that
The haydite is one kind in gravel haydite or spheroidal haydite.
A kind of 6. Rainwater Resources in Urban Area reutilization system based on pelelith according to claim 1, it is characterised in that
The water barrier (5) is waterproof roll.
A kind of 7. Rainwater Resources in Urban Area reutilization system based on pelelith according to claim 1, it is characterised in that
The treatment conditions of the acid treatment pelelith are：The pelelith that particle diameter is 3-6mm is chosen, is cleaned repeatedly with water, removes impurity,
When being placed in that immersion treatment 10-24 is small in the hydrochloric acid solution of 0.1-0.5mol/L again, acid solution is then filtered out, in being washed with distilled water to
Property.
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| CN201610122481.2A CN105756295B (en) | 2016-03-04 | 2016-03-04 | A kind of Rainwater Resources in Urban Area reutilization system based on pelelith |
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| CN105756295B true CN105756295B (en) | 2018-05-08 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106223552B (en) * | 2016-07-21 | 2018-05-15 | 成都华荣集成房屋有限公司 | A kind of flat-head type movable dwellings |
| CN106390911B (en) * | 2016-08-22 | 2019-10-22 | 上海融扬生物技术有限公司 | The method for preparing the method for pelelith adsorbent and being enriched with catechin antioxidant |
| KR101884995B1 (en) * | 2016-10-14 | 2018-08-02 | 이영무 | Moving house with a roof structure to grow plants |
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| JP2008289496A (en) * | 2003-06-13 | 2008-12-04 | Kawada Construction Co Ltd | Greening device using purified road surface discharged water |
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| CN104675025A (en) * | 2013-11-26 | 2015-06-03 | 西安大昱光电科技有限公司 | Novel roof greening system with waterproofing and heat insulation functions |
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