CN112238089A - Automatic substrate cleaning green roof and use method thereof - Google Patents
Automatic substrate cleaning green roof and use method thereof Download PDFInfo
- Publication number
- CN112238089A CN112238089A CN202011110367.0A CN202011110367A CN112238089A CN 112238089 A CN112238089 A CN 112238089A CN 202011110367 A CN202011110367 A CN 202011110367A CN 112238089 A CN112238089 A CN 112238089A
- Authority
- CN
- China
- Prior art keywords
- water
- layer
- cleaning
- water storage
- storage device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 104
- 239000000758 substrate Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 214
- 238000003860 storage Methods 0.000 claims abstract description 103
- 239000011159 matrix material Substances 0.000 claims abstract description 34
- 239000004746 geotextile Substances 0.000 claims abstract description 19
- 235000015097 nutrients Nutrition 0.000 claims abstract description 4
- 238000012546 transfer Methods 0.000 claims abstract description 4
- 235000013311 vegetables Nutrition 0.000 claims abstract 4
- 230000000694 effects Effects 0.000 claims description 15
- 238000005406 washing Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 7
- 230000000875 corresponding effect Effects 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims 2
- 238000007599 discharging Methods 0.000 claims 1
- 239000003344 environmental pollutant Substances 0.000 description 7
- 231100000719 pollutant Toxicity 0.000 description 7
- 230000001502 supplementing effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000003670 easy-to-clean Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
- A01G17/005—Cultivation methods
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
- A01G9/033—Flat containers for turf, lawn or the like, e.g. for covering roofs
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
- E03B3/02—Methods or installations for obtaining or collecting drinking water or tap water from rain-water
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D11/00—Roof covering, as far as not restricted to features covered by only one of groups E04D1/00 - E04D9/00; Roof covering in ways not provided for by groups E04D1/00 - E04D9/00, e.g. built-up roofs, elevated load-supporting roof coverings
- E04D11/002—Roof covering, as far as not restricted to features covered by only one of groups E04D1/00 - E04D9/00; Roof covering in ways not provided for by groups E04D1/00 - E04D9/00, e.g. built-up roofs, elevated load-supporting roof coverings consisting of two or more layers, at least one of the layers permitting turfing of the roof
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D11/00—Roof covering, as far as not restricted to features covered by only one of groups E04D1/00 - E04D9/00; Roof covering in ways not provided for by groups E04D1/00 - E04D9/00, e.g. built-up roofs, elevated load-supporting roof coverings
- E04D11/02—Build-up roofs, i.e. consisting of two or more layers bonded together in situ, at least one of the layers being of watertight composition
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
- E04D13/0404—Drainage on the roof surface
- E04D13/0477—Underroof drainage layers
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
-
- 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
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Public Health (AREA)
- Health & Medical Sciences (AREA)
- Environmental Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Botany (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Cultivation Of Plants (AREA)
Abstract
An automatic substrate cleaning green roof and its application method are provided. A green roof capable of automatically cleaning a matrix comprises a vegetable layer, the matrix layer, a perforated plate, a geotextile layer, a drainage layer, a waterproof layer, a water storage device I and a water storage device II, wherein the vegetable layer is positioned at the top, and an overflow water storage port valve and a cleaning water outlet port valve are respectively arranged on two sides of the vegetable layer; the substrate layer is positioned below the vegetation layer and provides nutrients for the vegetation layer; the perforated plate and the geotextile layer are positioned below the matrix layer; the drainage layer is positioned below the perforated plate and the geotextile layer, and a two-way valve I and a drainage port valve are respectively arranged on two sides of the drainage layer; the waterproof layer is arranged below the drainage layer; water storage device I with water storage device II establishes at green roof homonymy, is equipped with booster pump in water storage device II, is equipped with the fluviograph in the water storage device I, and I below of water storage device is provided with two-way valve II in order to communicate water storage device I and water storage device II, and the top of water storage device I is provided with the water inlet valve in order to transfer other water sources.
Description
Technical Field
The invention belongs to the technical field of environmental engineering, and particularly relates to a green roof capable of automatically cleaning a substrate and a using method thereof.
Background
The green roof is one of technical facilities of the sponge city, is an important component part for developing rainwater runoff source control with low influence in the sponge city, and is an effective means for reducing the pollution load of the city roof. With the continuous application of green roofs in recent years, the problems of later maintenance and life cycle also begin to emerge.
The substrate in the green roof substrate layer is a key factor for the functional exertion of the green roof substrate, and the state of the substrate not only influences the reduction of the system on the water quality condition of the runoff hydrology, but also influences the permeability of the green roof and the removal effect of pollutants. And because city population is dense, production activity is frequent, the pollutant range that produces is wide, quantity is big, inside the pollutant gets into the matrix along with the rainwater runoff, long-time use can make the matrix adhere to a large amount of pollutants, not only can make the matrix become the release source of runoff pollutant, can reduce the detention ability of matrix moreover, further influence the life cycle on green roof.
To sum up, how to wash matrix in the green roof, realize the washing away to the matrix layer, reduce the soluble pollutant of attached to on the matrix, resume the biological detention ability of matrix, improve the life cycle on green roof, reduce green roof and maintain and overhaul the frequency, reduce the later maintenance cost, make green roof sustainable use, form the better pollutant reduction effect that dams, the problem that needs to solve has become urgent.
Disclosure of Invention
In order to overcome a series of defects in the prior art, the invention aims to solve the problems and provide an automatic substrate-cleaning green roof, which comprises a vegetation layer 1, a substrate layer 2, a perforated plate and a geotextile layer 3, a drainage layer 4, a waterproof layer 5, a water storage device I6 and a water storage device II 7,
the vegetation layer 1 is positioned at the top, and an overflow water storage valve 9 and a cleaning water outlet valve 12 are respectively arranged at two sides of the vegetation layer 1;
the matrix layer 2 is positioned below the vegetation layer 1 and provides nutrients for the vegetation layer 1; the matrix particles of the matrix layer 2 are selected from improved soil or light growth matrix, and the saturation water density of the matrix is 0.7-1.2 g-cm-3The porosity is 50-70%, and the saturated hydraulic conductivity is 200-300mm & h-1The physical property of the substrate ensures that the substrate has good runoff regulation effect and is easy to clean when being used as a substrate layer material of a green roof device;
the perforated plate and the geotextile layer 3 are positioned below the matrix layer 2;
the drainage layer 4 is positioned below the perforated plate and the geotextile layer 3, and a two-way valve I10 and a drainage outlet valve 8 are respectively arranged on two sides of the drainage layer 4;
the waterproof layer 5 is arranged below the drainage layer 4;
water storage device I6 with water storage device II 7 sets up at green roof homonymy, be provided with booster pump in water storage device II 7, be provided with the fluviograph in water storage device I6, water storage device I6 below is provided with two-way valve II 13 with intercommunication water storage device I6 and water storage device II 7, just water storage device I6's top is provided with water inlet valve (14) in order to transfer other water sources.
Preferably, the perforated plate and the geotextile layer 3 are uniformly provided with cleaning and water supplementing holes 11, and the hole diameter and the hole opening ratio of the cleaning and water supplementing holes 11 are determined according to the density and the porosity of the matrix.
Preferably, the water storage device II 7 comprises a small water tank and a pressurizing water pump, and is used for pressurizing and conveying filtered water in the water drainage layer 4 to the water storage device I6 for storage, and pressurizing and conveying cleaning water in the water storage device I6 to the water drainage layer 4 for cleaning the substrate layer 2.
It is also an object of the present invention to provide a method of using a green roof apparatus capable of automated substrate cleaning, comprising the steps of:
s1): when raining, the two-way valve I10 is opened from the drainage layer 4 to the water storage device II 7, and if the substrate layer 2 overflows with rainwater, the overflow water storage port valve 9 is also opened;
s2): rainwater in the drainage layer 4 enters a water tank in the water storage device II 7; then, pressurizing by a water pump, entering the water storage device I6 from the two-way valve II 13 for storage, and directly storing rainwater overflowing in the water storage device I6 through the overflow water storage port valve 9;
s3): after the rainwater on the drainage layer 4 is collected; closing the two-way valve I10 and the two-way valve II 13; closing the overflow water storage port valve 9 after the overflow rainwater is collected;
s4): closing the water outlet valve 8;
s5): the two-way valve II 13 is opened from the water storage device I6 to the water storage device II 7;
s6): the water storage device II 7 pressurizes cleaning water through a booster water pump;
s7): the two-way valve I10 is opened from the water storage device II 7 to the drainage layer 4, and the cleaning water cleans the substrate layer 2 from the drainage layer 4 upwards;
s8): the wash drain valve 12 is opened, and after washing is completed, wash water is drained from the wash drain valve 12.
Preferably, the lift of the booster water pump is calculated by the following formula:
H＝H0+∑h+hb
in the formula, H represents the lift of the booster water pump;
H0the geometric water supply height is expressed, and the value of the geometric water supply height is equal to the height difference between the cleaning water outlet and the lowest water level in the water storage device I6;
hbindicating a reserve head.
Preferably, the total head loss of wash water is summed over three portions: the first part is the head loss of the washing water in the conveying process, wherein the head loss comprises the head loss along the way and the local head loss; the second part is the head loss of the cleaning water in the perforated plate and the geotextile layer 3; the third part is the head loss of wash water in the matrix layer 2.
Preferably, the devices are arranged in groups, and if the water stored in a single device is not enough to finish the cleaning, the required cleaning water can be supplied by the filtered water of other devices in the group and is cleaned in turn; when the amount of water needed for cleaning is not enough due to one-time rainfall, the collected cleaning water is temporarily stored, and cleaning is performed after multiple rainings and rainwater collection are completed.
Preferably, the type of the booster water pump is determined according to the size of the assembly area of the actual green roof; the volume of the water storage device I6 is determined according to the flow required by one-time cleaning, and the flow required by one-time cleaning is equal to the product of the cleaning intensity and the area of the substrate layer 2.
Preferably, the cleaning process selects the small direct-current electric water pump and the direct-current electromagnetic valve, the controller controls the small direct-current electric water pump and the direct-current electromagnetic valve to perform corresponding actions, the complete automation is realized, and the solar panel is selected as the power supply required by the equipment to supply power.
Preferably, the effluent turbidity changes greatly before and after cleaning, and the effluent turbidity after cleaning is used as an auxiliary index for evaluating the cleaning effect; and carrying out proper cleaning for multiple times until a good cleaning effect is achieved.
Compared with the prior art, the invention has the following beneficial effects:
1) the invention arranges an overflow rainwater storage device in a green roof. Overflow rainwater can be well collected in a rainstorm season, so that damage to a plant layer caused by rainwater immersion is avoided; secondly, clean water sources are provided for cleaning the green roof through rainwater collection, other water sources are not needed, tap water consumption is avoided, and economic cost is reduced; moreover, the device can make the overflow rainwater be well recycled, so as to achieve the purpose of rainwater utilization and generate higher environmental benefit.
2) The invention provides a cleaning device in a green roof. Through substrate cleaning for several times per year, the substrate layer is continuously cleaned, the interception and pollution reduction capacity of the substrate layer is recovered, the service life of the green roof can be greatly prolonged, the working period of the green roof is prolonged, and the problem that frequent maintenance and even replacement are needed due to short service period is avoided; the green roof has self-cleaning capability, the service life of the green roof is greatly prolonged, and huge environmental and economic benefits can be generated.
Drawings
FIG. 1 is a schematic view of an automatic substrate cleaning green roof according to the present invention;
FIG. 2 is a schematic illustration of the water storage flow of an automatic substrate cleaned green roof of the present invention;
FIG. 3 is a schematic view of the cleaning process of an automatic substrate-cleaned green roof according to the present invention.
The reference numbers in the figures are:
1-vegetable layer, 2-matrix layer, 3-perforated plate and geotextile layer, 4-drainage layer, 5-waterproof layer, 6-water storage device I, 7-water storage device II, 8-water outlet valve, 9-overflow water storage valve, 10-two-way valve I, 11-cleaning water replenishing hole, 12-cleaning water outlet valve, 13-two-way valve II, 14-water inlet valve.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiments and the directional terms described below with reference to the drawings are exemplary and intended to be used in the explanation of the invention, and should not be construed as limiting the invention.
An automatic substrate cleaning green roof of the present invention will be described in detail with reference to the accompanying drawings.
In one broad embodiment of the invention, referring to fig. 1, an automatic substrate cleaning green roof comprises a vegetation layer 1, a substrate layer 2, a perforated plate and geotextile layer 3, a drainage layer 4, a waterproof layer 5, a water storage device I6 and a water storage device II 7,
the vegetation layer 1 is positioned at the top, and an overflow water storage valve 9 and a cleaning water outlet valve 12 are respectively arranged at two sides of the vegetation layer 1;
the matrix layer 2 is positioned below the vegetation layer 1 and provides nutrients for the vegetation layer 1; the matrix particles of the matrix layer 2 are selected from improved soil or light growth matrix, and the saturation water density of the matrix is 0.7-1.2 g-cm-3The porosity is 50-70%, and the saturated hydraulic conductivity is 200-300mm & h-1The physical property of the substrate ensures that the substrate has good runoff regulation effect and is easy to clean when being used as a substrate layer material of a green roof device;
the perforated plate and the geotextile layer 3 are positioned below the matrix layer 2;
the drainage layer 4 is positioned below the perforated plate and the geotextile layer 3, and a two-way valve I10 and a drainage outlet valve 8 are respectively arranged on two sides of the drainage layer 4;
the waterproof layer 5 is arranged below the drainage layer 4;
water storage device I6 with water storage device II 7 sets up at green roof homonymy, be provided with booster pump in water storage device II 7, be provided with the fluviograph in water storage device I6, water storage device I6 below is provided with two-way valve II 13 with intercommunication water storage device I6 and water storage device II 7, just water storage device I6's top is provided with water inlet valve (14) in order to transfer other water sources.
Preferably, the perforated plate and the geotextile layer 3 are uniformly provided with cleaning and water supplementing holes 11, and the hole diameter and the hole opening ratio of the cleaning and water supplementing holes 11 are determined according to the density and the porosity of the matrix.
Preferably, the water storage device II 7 comprises a small water tank and a pressurizing water pump, and is used for pressurizing and conveying filtered water in the water drainage layer 4 to the water storage device I6 for storage, and pressurizing and conveying cleaning water in the water storage device I6 to the water drainage layer 4 for cleaning the substrate layer 2.
It is also an object of the present invention to provide a method of using a green roof apparatus capable of automated substrate cleaning, comprising the steps of:
s1): when raining, the two-way valve I10 is opened from the drainage layer 4 to the water storage device II 7, and if the substrate layer 2 overflows with rainwater, the overflow water storage port valve 9 is also opened;
s2): rainwater in the drainage layer 4 enters a water tank in the water storage device II 7; then, pressurizing by a water pump, entering the water storage device I6 from the two-way valve II 13 for storage, and directly storing rainwater overflowing in the water storage device I6 through the overflow water storage port valve 9;
s3): after the rainwater on the drainage layer 4 is collected; closing the two-way valve I10 and the two-way valve II 13; closing the overflow water storage port valve 9 after the overflow rainwater is collected;
s4): closing the water outlet valve 8;
s5): the two-way valve II 13 is opened from the water storage device I6 to the water storage device II 7;
s6): the water storage device II 7 pressurizes cleaning water through a booster water pump;
s7): the two-way valve I10 is opened from the water storage device II 7 to the drainage layer 4, and the cleaning water cleans the substrate layer 2 from the drainage layer 4 upwards;
s8): the wash drain valve 12 is opened, and after washing is completed, wash water is drained from the wash drain valve 12.
Preferably, the lift of the booster water pump is calculated by the following formula:
H＝H0+∑h+hb
in the formula, H represents the lift of the booster water pump;
H0representing geometric water supply height equal to the values of the cleaning water outlet and the water storage deviceI6, the elevation difference of the lowest water level in the water level;
hbindicating a reserve head.
Preferably, the total head loss of wash water is summed over three portions: the first part is the head loss of the washing water in the conveying process, wherein the head loss comprises the head loss along the way and the local head loss; the second part is the head loss of the cleaning water in the perforated plate and the geotextile layer 3; the third part is the head loss of wash water in the matrix layer 2.
Preferably, the devices are arranged in groups, and if the water stored in a single device is not enough to finish the cleaning, the required cleaning water can be supplied by the filtered water of other devices in the group and is cleaned in turn; when the amount of water needed for cleaning is not enough due to one-time rainfall, the collected cleaning water is temporarily stored, and cleaning is performed after multiple rainings and rainwater collection are completed.
Preferably, the type of the booster water pump is determined according to the size of the assembly area of the actual green roof; the volume of the water storage device I6 is determined according to the flow required by one-time cleaning, and the flow required by one-time cleaning is equal to the product of the cleaning intensity and the area of the substrate layer 2.
Preferably, the cleaning process selects the small direct-current electric water pump and the direct-current electromagnetic valve, the controller controls the small direct-current electric water pump and the direct-current electromagnetic valve to perform corresponding actions, the complete automation is realized, and the solar panel is selected as the power supply required by the equipment to supply power.
Preferably, the effluent turbidity changes greatly before and after cleaning, and the effluent turbidity after cleaning is used as an auxiliary index for evaluating the cleaning effect; and carrying out proper cleaning for multiple times until a good cleaning effect is achieved.
Wherein, should cleaning performance examine after once rinsing is accomplished, if cleaning performance is good, can following phenomenon:
a. the amount of impurities on the surface of the substrate layer is very low;
b. flattening the surface of the substrate;
c. after the washing is started, high turbidity appears in the initial drainage, then the turbidity is rapidly reduced, and the drainage turbidity is low after the washing is finished;
d. when the filter is reused after being washed, the water quality after being filtered is improved and is close to the effect when the device is put into use initially.
If the above phenomena do not occur completely, proper cleaning can be carried out again until a good cleaning effect is achieved; the cleaning effect of the device is evaluated through measurement of actual indexes and the phenomenon after cleaning, and the fact proves that the device has better cleaning effect
Finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. An automatic substrate cleaning green roof comprises a vegetable layer (1), a substrate layer (2), a perforated plate and a geotextile layer (3), a drainage layer (4), a waterproof layer (5), a water storage device I (6) and a water storage device II (7),
the vegetation layer (1) is positioned at the top, and an overflow water storage port valve (9) and a cleaning water outlet port valve (12) are respectively arranged at two sides of the vegetation layer (1);
the matrix layer (2) is positioned below the vegetation layer (1) and provides nutrients for the vegetation layer (1), and matrix particles of the matrix layer (2) are improved soil or light growth matrix;
the perforated plate and the geotextile layer (3) are positioned below the matrix layer (2);
the drainage layer (4) is positioned below the perforated plate and the geotextile layer (3), and two sides of the drainage layer (4) are respectively provided with a two-way valve I (10) and a drainage outlet valve (8);
the waterproof layer (5) is arranged below the drainage layer (4);
water storage device I (6) with water storage device II (7) set up at green roof homonymy, be provided with booster pump in water storage device II (7), be provided with the fluviograph in water storage device I (6), water storage device I (6) below is provided with two-way valve II (13) in order to communicate water storage device I (6) and water storage device II (7), just the top of water storage device I (6) is provided with water inlet valve (14) in order to transfer other water sources.
2. The green roof according to claim 1, characterized in that the perforated plate and the geotextile layer (3) are uniformly provided with cleaning and replenishing holes (11), and the hole diameter and the hole ratio of the cleaning and replenishing holes (11) are determined according to the density and the porosity of the matrix.
3. The green roof of claim 1, wherein the water storage means ii (7) comprises a small tank and a booster pump for pumping filtered water in the water drainage layer (4) to the water storage means i (6) for storage and pumping clean water in the water storage means i (6) to the water drainage layer (4) for cleaning the substrate layer (2).
4. The method of using a green roof for automatic substrate cleaning according to any of claims 1 to 3, comprising the steps of:
s1): when raining, the two-way valve I (10) is opened from the drainage layer (4) to the water storage device II (7), and if the substrate layer (2) overflows with rainwater, the overflow water storage port valve (9) is also opened;
s2): rainwater on the drainage layer (4) enters a water tank in the water storage device II (7); then, pressurizing by a water pump, entering the water storage device I (6) from the two-way valve II (13) for storage, and directly storing rainwater overflow in the water storage device I (6) through the overflow water storage port valve (9);
s3): after the rainwater on the drainage layer (4) is collected; closing the two-way valve I (10) and the two-way valve II (13); closing an overflow water storage port valve (9) after the overflow rainwater is collected;
s4): closing the water outlet valve (8);
s5): the two-way valve II (13) is opened from the water storage device I (6) to the water storage device II (7);
s6): the water storage device II (7) pressurizes cleaning water through a booster water pump;
s7): the two-way valve I (10) is opened from the water storage device II (7) to the drainage layer (4), and the cleaning water cleans the substrate layer (2) upwards from the drainage layer (4);
s8): and opening the cleaning water outlet valve (12), and after cleaning is finished, discharging the cleaning water from the cleaning water outlet valve (12).
5. The method of using an automatically substrate cleaned green roof according to claim 4, wherein the head of the booster water pump is calculated by the following formula:
H＝H0+∑h+hb
in the formula, H represents the lift of the booster water pump;
H0the geometric water supply height is expressed, and the value of the geometric water supply height is equal to the elevation difference between the cleaning water outlet and the lowest water level in the water storage device I (6);
hbindicating a reserve head.
6. The method of use of an automatic substrate cleaning green roof as claimed in claim 4, wherein the total head loss of cleaning water is accumulated in three parts: the first part is the head loss of the washing water in the conveying process, wherein the head loss comprises the head loss along the way and the local head loss; the second part is the head loss of the cleaning water in the perforated plate and the geotextile layer (3); the third part is the head loss of the washing water in the substrate layer (2).
7. The method of claim 4, wherein the units are arranged in groups, and if the water stored in a single unit is not enough to complete the cleaning, the required cleaning water can be supplied by the filtered water from other units in the group and cleaned by turns; when the amount of water needed for cleaning is not enough due to one-time rainfall, the collected cleaning water is temporarily stored, and cleaning is performed after multiple rainings and rainwater collection are completed.
8. The method of using an automatic substrate cleaning green roof as claimed in claim 4, wherein the booster pump is sized according to the actual green roof assembly area; the volume of the water storage device I (6) is determined according to the flow required by one-time cleaning, and the flow required by one-time cleaning is equal to the product of the cleaning intensity and the area of the substrate layer (2).
9. The use method of the green roof for automatic substrate cleaning according to claim 4, wherein the cleaning process uses a DC electric small water pump and a DC electromagnetic valve, the DC electric small water pump and the DC electromagnetic valve are controlled by the controller to perform corresponding actions, the complete automation is realized, and the power supply required by the equipment is supplied by a solar panel.
10. The method of claim 4, wherein the turbidity of the effluent before and after cleaning is changed greatly, and the turbidity of the effluent after cleaning is used as an auxiliary index for evaluating the cleaning effect; and carrying out proper cleaning for multiple times until a good cleaning effect is achieved.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011110367.0A CN112238089B (en) | 2020-10-16 | 2020-10-16 | Automatic substrate cleaning green roof and use method thereof |
| GB2101608.4A GB2599973B (en) | 2020-10-16 | 2021-02-05 | Self-cleaning green roof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011110367.0A CN112238089B (en) | 2020-10-16 | 2020-10-16 | Automatic substrate cleaning green roof and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112238089A true CN112238089A (en) | 2021-01-19 |
| CN112238089B CN112238089B (en) | 2022-02-01 |
Family
ID=74168693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011110367.0A Active CN112238089B (en) | 2020-10-16 | 2020-10-16 | Automatic substrate cleaning green roof and use method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112238089B (en) |
| GB (1) | GB2599973B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114607106A (en) * | 2022-05-10 | 2022-06-10 | 北京建筑大学 | High-efficient green roof system who purifies and utilize rainwater |
| CN115299268A (en) * | 2022-09-02 | 2022-11-08 | 北京建筑大学 | Can regulate and control dry wet green roof system of matrix |
| CN115336490A (en) * | 2022-08-10 | 2022-11-15 | 中国市政工程中南设计研究总院有限公司 | Unpowered maintenance-free green roof design system |
| CN115405054A (en) * | 2022-09-09 | 2022-11-29 | 北京建筑大学 | Green roof system of matrix normal position restoration |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010048080A (en) * | 2009-06-23 | 2010-03-04 | Seishichi Fujima | Filtering unit for blocking rain water |
| JP2010193771A (en) * | 2009-02-25 | 2010-09-09 | Tankatsu:Kk | Cultivation device for garden and field |
| WO2012110505A1 (en) * | 2011-02-14 | 2012-08-23 | Stefan Boettle | Filling station with roof designed for recovering rainwater |
| US20140260077A1 (en) * | 2013-03-15 | 2014-09-18 | Quality Edge, Inc. | Rolled ridge vent dispenser |
| CN204208345U (en) * | 2014-10-09 | 2015-03-18 | 广东省建筑科学研究院集团股份有限公司 | A kind of buried rainwater treatment device |
| CN204212215U (en) * | 2014-10-09 | 2015-03-18 | 广东省建筑科学研究院集团股份有限公司 | A kind ofly affect development system in conjunction with the low of rainwater catchment system |
| CN204607715U (en) * | 2015-04-01 | 2015-09-02 | 深圳市高山水生态园林股份有限公司 | A kind of device for recycling rainwater for treegarden irrigation |
| CN105735405A (en) * | 2016-02-02 | 2016-07-06 | 广州聚注专利研发有限公司 | Rainwater collecting and processing system of building roof |
| CN105850264A (en) * | 2016-04-06 | 2016-08-17 | 天津绿茵景观生态建设股份有限公司 | Vegetation recovery method suitable for saline and alkaline land rainwater collection and salt elimination |
| CN106193183A (en) * | 2016-07-19 | 2016-12-07 | 徐志兵 | A kind of roof rain water retracting device with backwashing system |
| CA2923193A1 (en) * | 2016-03-09 | 2017-09-09 | Richard H. Goos | Permanent four season self-watering flat green roof |
| DE102017108820A1 (en) * | 2016-04-26 | 2017-10-26 | Paul Lingen | filter system |
| CN207794243U (en) * | 2018-01-26 | 2018-08-31 | 南京先行交通工程设计有限责任公司 | Sunk type greenery patches reverse osmosis layer automatic flushing device in a kind of sponge city |
| CN208152137U (en) * | 2018-04-28 | 2018-11-27 | 安徽工程大学 | Biological delaying basin |
| CN209824539U (en) * | 2019-03-07 | 2019-12-24 | 苏州筑研绿色建筑工程技术有限公司 | Capacity-adjustable ecological tree pool |
| CN209990033U (en) * | 2019-04-04 | 2020-01-24 | 中景博道城市规划发展有限公司 | Sponge urban water storage type roof garden structure |
| CN110839509A (en) * | 2019-11-12 | 2020-02-28 | 江苏澳洋生态园林股份有限公司 | Method for treating river and lake sludge and then using water-land interlaced belt plant planting matrix |
| CN111133921A (en) * | 2020-02-05 | 2020-05-12 | 绍兴光亚农业科技有限公司 | Automatic soil cleaning device for changing soil in pot |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205894508U (en) * | 2016-06-27 | 2017-01-18 | 深圳市华田园林绿化有限公司 | Roof greening drainage system that impounds |
| CN206760338U (en) * | 2016-11-17 | 2017-12-19 | 重庆顺泽环保科技有限公司 | Planting roof |
-
2020
- 2020-10-16 CN CN202011110367.0A patent/CN112238089B/en active Active
-
2021
- 2021-02-05 GB GB2101608.4A patent/GB2599973B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010193771A (en) * | 2009-02-25 | 2010-09-09 | Tankatsu:Kk | Cultivation device for garden and field |
| JP2010048080A (en) * | 2009-06-23 | 2010-03-04 | Seishichi Fujima | Filtering unit for blocking rain water |
| WO2012110505A1 (en) * | 2011-02-14 | 2012-08-23 | Stefan Boettle | Filling station with roof designed for recovering rainwater |
| US20140260077A1 (en) * | 2013-03-15 | 2014-09-18 | Quality Edge, Inc. | Rolled ridge vent dispenser |
| CN204208345U (en) * | 2014-10-09 | 2015-03-18 | 广东省建筑科学研究院集团股份有限公司 | A kind of buried rainwater treatment device |
| CN204212215U (en) * | 2014-10-09 | 2015-03-18 | 广东省建筑科学研究院集团股份有限公司 | A kind ofly affect development system in conjunction with the low of rainwater catchment system |
| CN204607715U (en) * | 2015-04-01 | 2015-09-02 | 深圳市高山水生态园林股份有限公司 | A kind of device for recycling rainwater for treegarden irrigation |
| CN105735405A (en) * | 2016-02-02 | 2016-07-06 | 广州聚注专利研发有限公司 | Rainwater collecting and processing system of building roof |
| CA2923193A1 (en) * | 2016-03-09 | 2017-09-09 | Richard H. Goos | Permanent four season self-watering flat green roof |
| CN105850264A (en) * | 2016-04-06 | 2016-08-17 | 天津绿茵景观生态建设股份有限公司 | Vegetation recovery method suitable for saline and alkaline land rainwater collection and salt elimination |
| DE102017108820A1 (en) * | 2016-04-26 | 2017-10-26 | Paul Lingen | filter system |
| CN106193183A (en) * | 2016-07-19 | 2016-12-07 | 徐志兵 | A kind of roof rain water retracting device with backwashing system |
| CN207794243U (en) * | 2018-01-26 | 2018-08-31 | 南京先行交通工程设计有限责任公司 | Sunk type greenery patches reverse osmosis layer automatic flushing device in a kind of sponge city |
| CN208152137U (en) * | 2018-04-28 | 2018-11-27 | 安徽工程大学 | Biological delaying basin |
| CN209824539U (en) * | 2019-03-07 | 2019-12-24 | 苏州筑研绿色建筑工程技术有限公司 | Capacity-adjustable ecological tree pool |
| CN209990033U (en) * | 2019-04-04 | 2020-01-24 | 中景博道城市规划发展有限公司 | Sponge urban water storage type roof garden structure |
| CN110839509A (en) * | 2019-11-12 | 2020-02-28 | 江苏澳洋生态园林股份有限公司 | Method for treating river and lake sludge and then using water-land interlaced belt plant planting matrix |
| CN111133921A (en) * | 2020-02-05 | 2020-05-12 | 绍兴光亚农业科技有限公司 | Automatic soil cleaning device for changing soil in pot |
Non-Patent Citations (4)
| Title |
|---|
| 张勤等: "《高层建筑给水排水工程》", 31 December 2016, 重庆大学出版社 * |
| 徐寿昌著: "《工业冷却水处理技术》", 31 August 1984, 化学工业出版社 * |
| 蔡殿卿、于磊、 潘兴瑶 、宫永伟等: "北京海绵城市试点区建设实践", 《建设科技》 * |
| 邓志翔等: "增城开发区保障房项目雨水收集***关键施工技术研究", 《广东土木与建筑》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114607106A (en) * | 2022-05-10 | 2022-06-10 | 北京建筑大学 | High-efficient green roof system who purifies and utilize rainwater |
| CN114607106B (en) * | 2022-05-10 | 2022-08-12 | 北京建筑大学 | High-efficient green roof system who purifies and utilize rainwater |
| CN115336490A (en) * | 2022-08-10 | 2022-11-15 | 中国市政工程中南设计研究总院有限公司 | Unpowered maintenance-free green roof design system |
| CN115299268A (en) * | 2022-09-02 | 2022-11-08 | 北京建筑大学 | Can regulate and control dry wet green roof system of matrix |
| CN115405054A (en) * | 2022-09-09 | 2022-11-29 | 北京建筑大学 | Green roof system of matrix normal position restoration |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112238089B (en) | 2022-02-01 |
| GB202101608D0 (en) | 2021-03-24 |
| GB2599973A (en) | 2022-04-20 |
| GB2599973B (en) | 2022-10-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112238089B (en) | Automatic substrate cleaning green roof and use method thereof | |
| CN104947781B (en) | The system of regulating and storing on a kind of rainwater-collecting shunting, self-restraint stratum | |
| KR101056650B1 (en) | A treatment device for the rain water | |
| CN109250821A (en) | It is classified biofiltration gaseous-waste holdup system | |
| CN204170467U (en) | A kind of conventional rapid filter adopting combined water and air backwash | |
| CN109731376A (en) | Intelligent rain processing system | |
| CN214316709U (en) | Back-washing self-purifying ecological fish tank | |
| CN112064755A (en) | Accurate reposition of redundant personnel of inlet for stom water initial stage rainwater and processing system | |
| CN108970239B (en) | Rainwater filtering and purifying device and filtering method | |
| CN114753442A (en) | Water-saving landscape rainwater is collected and water recycling system | |
| CN203329431U (en) | Filter tank | |
| CN207520666U (en) | A kind of efficient filter tank | |
| CN215195814U (en) | Quick rainwater filtering device | |
| CN111771696B (en) | Anti-overflow rainwater recycling vertical drip irrigation system and drip irrigation method | |
| CN115726430A (en) | Building site rainwater waste water recovery system | |
| CN213014460U (en) | PP modular rainwater collecting and recycling device matched with sponge urban project | |
| CN209985889U (en) | Wash heat sink and photovoltaic power plant system | |
| CN212842165U (en) | Air conditioner condensate water recycling device | |
| CN209537006U (en) | A kind of sewage pre-treatment device | |
| CN210695135U (en) | Resource sewage treatment disjunctor vegetable garden device on water | |
| CN207499101U (en) | Rainwater collecting and treating system under a kind of overpass | |
| CN113860629A (en) | Building sewage treatment environment-friendly device | |
| CN207760099U (en) | Rainwater Online Processing System with precipitation and pre-washing function | |
| CN111321774A (en) | Green energy-saving rainwater recycling method | |
| CN216552326U (en) | Sewage intercepting basket |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |