CN105297831A - Roof greening rainwater utilization system and method based on plant transpiration - Google Patents

Roof greening rainwater utilization system and method based on plant transpiration Download PDF

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Publication number
CN105297831A
CN105297831A CN201510825074.3A CN201510825074A CN105297831A CN 105297831 A CN105297831 A CN 105297831A CN 201510825074 A CN201510825074 A CN 201510825074A CN 105297831 A CN105297831 A CN 105297831A
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China
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rainwater
roof greening
collecting
roof
plant
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CN201510825074.3A
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CN105297831B (en
Inventor
杨彬
吴泽玲
杨莲
吴雅典
李颖
刘亚南
张陆润
石小波
丁勇
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CISDI Engineering Co Ltd
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CISDI Engineering Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/108Rainwater harvesting

Abstract

The invention discloses a roof greening rainwater utilization system and method based on plant transpiration. A super-strong water absorption material is mainly utilized to connect a rainwater collection system and a roof greening system in series, rainwater in a rainwater collection pool under the ground is absorbed by the super-strong water absorption material in a rainwater pipe network by virtue of the plant transpiration of the roof greening system, and the rainwater is used for self-growth of plants. According to the invention, a passive mode is adopted to recycle rainwater for roof greening irrigation so as to solve the problem of energy consumption of rainwater recycling, thereby fully utilizing the rainwater and reducing the roof greening irrigation and management costs.

Description

A kind of roof greening rainwater based on plant transpiration effect utilizes system and method
Technical field
The invention belongs to water resource and utilize technical field, particularly relate to a kind of roof greening rainwater based on plant transpiration effect utilizes system and method.
Background technology
Along with Green Architecture Conception Popularization And Development at home, rainwater-collecting, roof greening become not strange building practitioner and common building user.
China's roof greening construction makes great progress, and technology is also quite ripe, but does not still obtain large-area popularization at present, the cost increase problems such as main or construction, operation management.If meet green building standard-required, also need to set up rainwater reuse pump according to current common technology, for watering Green Roof Plants to extract rainwater in rainwater collecting-tank, increase further and build and use cost.
In addition, although just outstanding rainwater utilization from China " green building assessment standard " GB/T50378-2006 the earliest, for the water-saving plan of all kinds of building of China provides guidance, but a lot of Green Architecture exists " gather number " and read according to the copy according to Standard Selection technology, cause rain water collecting system to design but do not implement, construction but unreasonable, build up but the confusion such as not run.
Although rainwater-collecting, roof greening theory are rooted in the hearts of the people, but its technology is all individual event usually to be used, how abundant by rainwater reuse to roof greening, current technology comparatively lacks, common technology is all extract roof greening pouring water by rainwater reuse pump, operation cost increases, it is loaded down with trivial details to manage, and comprehensive two cover system technical benefits have to be hoisted.
Summary of the invention
The deficiencies in the prior art in view of the above, the object of invention is to provide a kind of roof greening rainwater based on plant transpiration effect utilizes system and method, utilize rainwater reuse roof greening to water in passive type mode, solve rainwater reuse energy consumption problem, not only take full advantage of rainwater, also reduce roof greening pouring, management cost etc.
For achieving the above object and other relevant objects, invention technical scheme is as follows:
A kind of roof greening rainwater based on plant transpiration effect utilizes system, comprise roof greening soil horizon, rainwater-collecting pipeline and collecting-tank, hydrating structure is provided with in described roof greening soil horizon, this hydrating structure extends in collecting-tank by rainwater-collecting pipeline, described rainwater-collecting pipeline is provided with the fastening devices for supporting hydrating structure.
Adopt said structure, a hydrating structure part is placed in roof greening soil horizon, and a part is positioned at rainwater-collecting pipeline.Utilize the transpiration of plant, accelerate the water in root absorption soil, thus make the current direction root tissue region of surrounding, impel be placed in soil horizon hydrating structure absorb set pond in rainwater, automatically supplement water content needed for plant in soil, thus reach the object of rainwater reuse and plant automatic-watering.
As preferably: described hydrating structure comprises funicular supportive body and is coated on the continuous print water accepting layer on supportive body.
As preferably: described supportive body is stainless steel steel wire, have certain tensile strength on the one hand, bear the pulling force of water accepting layer, corrosion-resistant on the other hand, described water accepting layer is made up of super-strong moisture absorbing macromolecular material.
As preferably: the middle water absorbing section that described hydrating structure comprises the first water absorbing section in roof greening soil horizon, the second water absorbing section in rainwater-collecting pipeline and is connected between the first water absorbing section and the second water absorbing section, described fastening devices is the fixed mount of " Y " type, described fixed mount is supported on the roof drain of rainwater-collecting pipeline upper end, described middle water absorbing section in " Y " type, and supports with on described fixed mount.
As preferably: described fixed mount is made up of stainless steel tube, the supportive body of described hydrating structure is divided into two water suction branch roads through after fixed mount, article two, water suction branch road passes described roof drain and in rainwater-collecting pipeline, is wound " 8 " type structure, in the access set pond, lower end of two water suction branch roads.
Described " 8 " type stainless steel wire is arranged in super-strong moisture absorbing macromolecular material, described " 8 " type stainless steel wire fixed form can decompose super-strong moisture absorbing macromolecular material self gravitation, reduce downward pressure, rainwater-collecting built in pipeline part super-strong moisture absorbing macromolecular material is made to avoid the dehydration by self upper part pressure extrusion after absorbing water, described " Y type " fixed mount for connecting built in pipeline part and the roof greening soil horizon internal portion of hydrating structure, and plays fixing, load-bearing effect.
As preferably: described fixed mount is made up of stainless steel tube, and described roof drain comprises stainless steel air register, stainless steel clamping ring and stainless steel chassis, and two pipe ends of described fixed mount are embedded in stainless steel air register.
As preferably: described hydrating structure in roof greening soil horizon with " S type " mode horizontal arrangement.
As preferably: described hydrating structure in roof greening soil horizon apart from 5cm-10cm place bottom roof greening soil horizon.
As preferably: described roof greening comprises gravel around vegetable layer, soil horizon, topping, outfall; described soil horizon thickness is 30cm-60cm; described topping comprises waterproofing course and anti-layer, and described collecting-tank is at below ground, and described hydrating structure lower end is fixed on bottom collecting-tank.
As preferably: described super-strong moisture absorbing macromolecular material adopts polyacrylic acid or polypropylene salt to make.
Present invention also offers a kind of roof greening rainwater Application way based on plant transpiration effect, utilize said system, described method implementation step is as follows:
Rainwater is collected along rainwater-collecting pipeline and is stored in rainwater collection pool;
Utilize osmosis principle, water can be flowed to the place that concentration is high by the place that concentration is low, and the strength of fluid of plant root tissue is higher than the water environment concentration around soil, and plant root will absorb water in soil.In addition, the transpiration produced by plant leaf, the leaf of plant is owing to being evaporated the reason of moisture, the moisture of root can be needed support, just as water pump, such transpiration can accelerate the water in root absorption soil, thus makes the current direction root tissue region of surrounding.Therefore, impel the super-strong moisture absorbing macromolecular material being placed in soil horizon to drink up the rain rainwater in collecting pit by plant transpiration effect, automatically supplement water content needed for plant in soil.
Transpiration is not produced night plant, when there is no transpiration pull, be unlikely to fall after rise in rainwater collection pool because super-strong moisture absorbing macromolecular material can keep absorbing a large amount of rainwater, thus rainwater water column in whole system is not ruptured maintenance tension force, until when having transpiration pull again, continue upwards to permeate.
As mentioned above, the beneficial effect of the invention is:
Collection storm sewer is not only by rainwater-collecting pipeline of the present invention, is also rainwater reuse passage.In addition, rain water collecting system combines with roof greening system by described rainwater recycling system, solve roof greening water demand, plant can absorb water according to needed for self, be conducive to the growth of flowers and plants, make greening running cost reduce more manageability, rainwater resource is fully used, solve rainwater reuse energy consumption problem.
Accompanying drawing explanation
fig. 1for utilizing system to illustrate based on the roof greening rainwater of plant transpiration effect figure;
fig. 2for fig. 1middle roof and conversion place of rainwater-collecting pipeline are amplified and are illustrated figure;
fig. 3for the signal of " Y type " stainless steel fixed mount figure;
fig. 4for the roof greening rainwater Application way principle based on plant transpiration effect figure.
Piece mark explanation
1 vegetable layer
2 soil horizons
3 hydrating structures
31 water accepting layers
32 supportive bodies
4 toppings
5 roof structures
6 parapets
Gravel around 7 outfall
8 roof drains
81 stainless steel air registers
82 stainless steel clamping rings
83 dead bolts
84 stainless steel chassis
9 rainwater-collecting pipelines
10 fixed mounts
Detailed description of the invention
By particular specific embodiment, working of an invention mode is described below, person skilled in the art scholar the content disclosed by this manual can understand other advantages and effect of invention easily.
as Fig. 1extremely fig. 3shown in, a kind of roof greening rainwater based on plant transpiration effect utilizes system, comprise roof structure 5, roof greening soil horizon 2, rainwater-collecting pipeline 9 and collecting-tank ( in figurenot shown), hydrating structure 3 is provided with in roof greening soil horizon 2, this hydrating structure 3 extends in collecting-tank by rainwater-collecting pipeline 9, the continuous print water accepting layer 31 that described hydrating structure 3 comprises funicular supportive body 32 and is coated on supportive body 32, rainwater-collecting pipeline 9 is provided with the fastening devices for supporting hydrating structure 3.
Wherein rainwater-collecting pipeline 9 comprises PVC pipeline and is positioned at the roof drain 8 of PVC pipeline upper end; roof drain 8 comprises the structures such as stainless steel air register 81, stainless steel clamping ring 82, stainless steel chassis 84, dead bolt 83; roof greening comprises the vegetable layer 1, soil horizon 2, the topping 4 that are formed from top to bottom; topping 4 comprises waterproofing course and anti-layer; soil horizon 2 side is provided with gravel 7 around the outfall for protecting, and also comprises parapet 6 etc.
Further scheme is supportive body 32 is stainless steel wire, on the one hand there is certain tensile strength, bear the pulling force of water accepting layer 31, corrosion-resistant on the other hand, described water accepting layer 31 is made up of super-strong moisture absorbing macromolecular material, and the current material such as polyacrylic acid or polypropylene salt can be adopted to make.
The middle water absorbing section that in this example, hydrating structure 3 comprises the first water absorbing section in roof greening soil horizon 2, the second water absorbing section in rainwater-collecting pipeline 9 and is connected between the first water absorbing section and the second water absorbing section, first water absorbing section with " S type " mode horizontal arrangement, is preferably 5cm-10cm place bottom roof greening soil horizon 2 in roof greening soil horizon 2.
Described fixed mount 10 is supported on the roof drain 8 of rainwater-collecting pipeline 9 upper end, and described fastening devices is the fixed mount 10 that the stainless steel tube of " Y " type is made.In this example, two pipe ends of fixed mount 10 are embedded in stainless steel air register 81.Described middle water absorbing section is in " Y " type, and through described fixed mount 10, stainless steel wire is divided into two steel wires through after fixed mount 10, article two, steel wire passes described roof drain 8 and in rainwater-collecting pipeline 9, is wound " 8 " type structure, water accepting layer 31 is arranged on this " 8 " type structure steel wire, thus form the second water absorbing section, in the access set pond, lower end of the second water absorbing section.If supportive body 32 entirety adopts linear stainless steel wire, in the corner of bending downwards, 31 can there is the situation that fracture cannot absorb water in water accepting layer.And in this programme, adopt " Y " stainless steel wire, avoid water accepting layer 31 fracture on the corner on the one hand, play good supporting role on the other hand, prevent from gliding.
Described " 8 " type stainless steel wire is arranged in super-strong moisture absorbing macromolecular material, " 8 " type stainless steel wire fixed form can decompose super-strong moisture absorbing macromolecular material self gravitation, reduce downward pressure, rainwater-collecting pipeline 9 internal portion super-strong moisture absorbing macromolecular material is made to avoid the dehydration by self upper part pressure extrusion after absorbing water, described " Y type " fixed mount 10 for connecting built in pipeline part and roof greening soil horizon 2 internal portion of hydrating structure 3, and plays fixing, load-bearing effect.
Further, described collecting-tank is at below ground, and the stainless steel wire lower end of the second water absorbing section is fixed on bottom collecting-tank.
as Fig. 4shown in, present invention also offers a kind of roof greening rainwater Application way based on plant transpiration effect, utilize said system, described method implementation step is as follows:
Rainwater is collected along rainwater-collecting pipeline 9 and is stored in rainwater collection pool;
Utilize osmosis principle, water can be flowed to the place that concentration is high by the place that concentration is low, and the strength of fluid of plant root tissue is higher than the water environment concentration around soil, and plant root will absorb water in soil.In addition, the transpiration produced by plant leaf, the leaf of plant is owing to being evaporated the reason of moisture, the moisture of root can be needed support, just as water pump, such transpiration can accelerate the water in root absorption soil, thus makes the current direction root tissue region of surrounding.Therefore, impel the super-strong moisture absorbing macromolecular material being placed in soil horizon 2 to drink up the rain rainwater in collecting pit by plant transpiration effect, automatically supplement water content needed for plant in soil.
Transpiration is not produced night plant, when there is no transpiration pull, be unlikely to fall after rise in rainwater collection pool because super-strong moisture absorbing macromolecular material can keep absorbing a large amount of rainwater, thus rainwater water column in whole system is not ruptured maintenance tension force, until when having transpiration pull again, continue upwards to permeate.
Compared with prior art, collection storm sewer is not only by rainwater-collecting pipeline 9 of the present invention, is also rainwater reuse passage.In addition, rain water collecting system combines with roof greening system by described rainwater recycling system, solve roof greening water demand, plant can absorb water according to needed for self, be conducive to the growth of flowers and plants, make greening running cost reduce more manageability, rainwater resource is fully used, solve rainwater reuse energy consumption problem.
Any person skilled in the art scholar all under the spirit and category of invention, can modify above-described embodiment or changes.Therefore, such as have in art and usually know that the knowledgeable modifies or changes not departing from all equivalences completed under the spirit and technological thought that invention discloses, must be contained by the claim of inventing.

Claims (10)

1. one kind utilizes system based on the roof greening rainwater of plant transpiration effect, it is characterized in that: comprise roof greening soil horizon, rainwater-collecting pipeline and collecting-tank, hydrating structure is provided with in described roof greening soil horizon, this hydrating structure extends in collecting-tank by rainwater-collecting pipeline, and described hydrating structure comprises funicular supportive body and is coated on the continuous print water accepting layer on supportive body; Described rainwater-collecting pipeline is provided with the fastening devices for supporting hydrating structure.
2. a kind of roof greening rainwater based on plant transpiration effect according to claim 1 utilizes system, it is characterized in that: described supportive body is steel wire, and described water accepting layer is made up of super-strong moisture absorbing macromolecular material.
3. a kind of roof greening rainwater based on plant transpiration effect according to claim 2 utilizes system, it is characterized in that: the middle water absorbing section that described hydrating structure comprises the first water absorbing section in roof greening soil horizon, the second water absorbing section in rainwater-collecting pipeline and is connected between the first water absorbing section and the second water absorbing section, described fastening devices is the fixed mount of " Y " type, described fixed mount is supported on the roof drain of rainwater-collecting pipeline upper end, described middle water absorbing section in " Y " type, and is supported on described fixed mount.
4. a kind of roof greening rainwater based on plant transpiration effect according to claim 3 utilizes system, it is characterized in that: described fixed mount is made up of stainless steel tube, the supportive body of described hydrating structure is divided into two branch roads through after fixed mount, article two, branch road passes described roof drain and in rainwater-collecting pipeline, is wound " 8 " type structure, in the access set pond, lower end of two branch roads.
5. a kind of roof greening rainwater based on plant transpiration effect according to claim 4 utilizes system, it is characterized in that: described roof drain comprises stainless steel air register, stainless steel clamping ring and stainless steel chassis, two pipe ends of described fixed mount are embedded in stainless steel air register.
6. a kind of roof greening rainwater based on plant transpiration effect according to claim 2 utilizes system, it is characterized in that: described hydrating structure in roof greening soil horizon with " S type " mode horizontal arrangement.
7. a kind of roof greening rainwater based on plant transpiration effect according to claim 6 utilizes system, it is characterized in that: described hydrating structure in roof greening soil horizon apart from 5cm-10cm place bottom roof greening soil horizon.
8. a kind of roof greening rainwater based on plant transpiration effect according to claim 1 utilizes system, it is characterized in that: roof greening comprises gravel around vegetable layer, soil horizon, topping, outfall, described soil horizon thickness is 30cm-60cm, and described topping comprises waterproofing course and anti-layer; Described collecting-tank is at below ground, and described hydrating structure lower end is fixed on bottom collecting-tank.
9. a kind of roof greening rainwater based on plant transpiration effect according to claim 2 utilizes system, it is characterized in that: described super-strong moisture absorbing macromolecular material adopts polyacrylic acid or polypropylene salt to make.
10. based on a roof greening rainwater Application way for plant transpiration effect, the roof greening rainwater comprised described in claim 1-9 any one utilizes system, it is characterized in that: rainwater is collected along rainwater-collecting pipeline and is stored in collecting-tank; By day, utilize the water that roof plants transpiration is accelerated in root absorption soil, thus make the current direction root tissue region of surrounding, impel be placed in soil horizon hydrating structure absorb set pond in rainwater, automatically water content needed for plant in supplementary soil; Transpiration is not produced night plant, when there is no transpiration pull, keep drinking up the rain by hydrating structure and be unlikely to rainwater and fall after rise in collecting-tank, thus rainwater water column in whole system is not ruptured maintenance tension force, until when having transpiration pull again, continue upwards to permeate.
CN201510825074.3A 2015-11-24 2015-11-24 A kind of roof greening rainwater based on plant transpiration effect utilizes system and method Active CN105297831B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105986599A (en) * 2016-07-01 2016-10-05 天津大学 Diversion and filtration device for initial rainwater
CN112136559A (en) * 2020-09-27 2020-12-29 宋丽梅 River slope greening process

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CN104831873A (en) * 2015-04-23 2015-08-12 江西师范大学 Combined intelligent rigid inverted roof with water storage and drainage functions
CN205171586U (en) * 2015-11-24 2016-04-20 中冶赛迪工程技术股份有限公司 Roof greening rainwater utilizes system based on transpiration effect

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DE3502296A1 (en) * 1985-01-24 1986-07-24 Steinbronn, Hans, 6500 Mainz Load-bearing slab for a plant substrate for providing greenery on roofs
CN2492061Y (en) * 2001-09-19 2002-05-22 刘采联 Automatic equalizing infiltrating irrigation device
US20050044788A1 (en) * 2003-04-09 2005-03-03 Chung-Shih Tang Floating plant cultivation platform and method for growing terrestrial plants in saline water of various salinities for multiple purposes
CN101084733A (en) * 2006-06-07 2007-12-12 陈建 Roof afforestation structure
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105986599A (en) * 2016-07-01 2016-10-05 天津大学 Diversion and filtration device for initial rainwater
CN112136559A (en) * 2020-09-27 2020-12-29 宋丽梅 River slope greening process

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