CN107882145A - A kind of roof rain water runoff measuring device and its application method - Google Patents
A kind of roof rain water runoff measuring device and its application method Download PDFInfo
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- CN107882145A CN107882145A CN201710931089.7A CN201710931089A CN107882145A CN 107882145 A CN107882145 A CN 107882145A CN 201710931089 A CN201710931089 A CN 201710931089A CN 107882145 A CN107882145 A CN 107882145A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 92
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 230000000694 effects Effects 0.000 claims abstract description 17
- 238000005259 measurement Methods 0.000 claims abstract description 15
- 238000003860 storage Methods 0.000 claims abstract description 15
- 238000009825 accumulation Methods 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 238000006424 Flood reaction Methods 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000009466 transformation Effects 0.000 abstract description 23
- 230000008569 process Effects 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 description 10
- 238000013461 design Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000001131 transforming effect Effects 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000011538 cleaning material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
-
- 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
-
- 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
- E03F5/105—Accessories, e.g. flow regulators or cleaning devices
- E03F5/107—Active flow control devices, i.e. moving during flow regulation
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/20—Siphon pipes or inverted siphons
-
- 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
- E04D13/08—Down pipes; Special clamping means therefor
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F2201/00—Details, devices or methods not otherwise provided for
- E03F2201/20—Measuring flow in sewer systems
-
- 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
- E04D13/08—Down pipes; Special clamping means therefor
- E04D2013/0806—Details of lower end of down pipes, e.g. connection to water disposal system
-
- 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
- E04D13/08—Down pipes; Special clamping means therefor
- E04D2013/0853—Valves for controlling the rain water flow
-
- 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
- E04D13/08—Down pipes; Special clamping means therefor
- E04D2013/0873—Rain water reservoirs integrated in down pipes
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Sewage (AREA)
Abstract
The present invention relates to the measurement apparatus that a kind of roof rain water standpipe collects gross rainfall, it is characterized in that the device includes cistern, it is arranged at the pressure sensor of columns base, the siphon pipe being arranged in cistern, the Self controlling valve of cistern water inlet, and liquid level gauge are arranged at, when pressure sensor detects that water storage water is full, control Self controlling valve to close, stop water inlet;When pressure sensor detects cistern emptying, control Self controlling valve is opened, and recovers water inlet.The present invention is on the basis of transformation is implemented to present situation building drainage system against rain, with the Roof Runoff process discharged in rainfall of accurate measurement through rain leader downspout, so as to quantify the actual effect that roof greening transformation is cut down rainfall runoff so that reduction effect of the understanding roof greening that designer and user can be more directly perceived, apparent to runoff volume.
Description
Technical field
The present invention relates to building water supply and drainage field, more particularly to a kind of roof rain water runoff measuring device and its user
Method, effect is cut down to rainfall runoff available for old cell roof greening transformation is assessed.
Technical background
Roof greening is an important composition element for building sponge city, by the special sky such as roof, balcony, balcony
Between, according to design feature, the suitable plant of habit is planted, Roof Runoff, which is concentrated, during cutting down or postponing heavy rain flows into draining
Pipeline, to reduce the discharge pressure of drainage pipeline, while Roof Runoff is controlled to pollute.It is gradual with sponge urban construction theory
It is accepted by the public, roof greening is as a kind of sponge urban construction measure for integrating landscape and function, in new building
With the roof modified middle extensive application of built construction, at present, roof greening can specifically be evaluated by needing badly cuts down effect to rainfall runoff
The system of fruit, reference role is played for design, the applicability of roof greening.
The content of the invention
It is an object of the invention to provide a kind of roof rain water runoff measuring device, can be used for quantifying roof greening transformation
The actual effect cut down rainfall runoff.
To achieve these goals, design of the invention is:A kind of roof rain water runoff measuring device, its feature exist
Include in the device:
Cistern, the cistern are arranged at below rain leader downspout delivery port;
Pressure sensor, the pressure sensor are arranged at columns base;
Siphon pipe, the siphon pipe is arranged in cistern, and bottom of pond is fixed in one end;
Self controlling valve, the Self controlling valve are arranged at cistern water inlet;
Controller, when pressure sensor detects that water storage water is full, control Self controlling valve is closed, and stops water inlet, and carry out one
Secondary counting;When pressure sensor detects cistern emptying, control Self controlling valve is opened, and recovers water inlet;
Liquid level gauge, the liquid level gauge are arranged in cistern, for measuring liquid level in cistern.
Preferably, described device also includes blow-down pipe, the delivery port connection of the blow-down pipe and cistern, for by water storage
Pond rainwater discharge.The described low absolute altitude of blow-down pipe pipe is not higher than cistern bottom of pond, without ponding in pond during ensureing off position.
Preferably, the cistern bottom surface has the gradient.
Preferably, energy dissipating plate is provided with the cistern, the energy dissipating plate is located at below soil stack outlet.Energy dissipating
Plate has energy dissipating effect so that cistern end stable level can be surveyed, and can prevent from depositing.
Preferably, cistern delivery port is connected with blow-down pipe, and cistern delivery port and blow-down pipe junction set gate valve, drop
When rain starts, closing gate valve, cistern starts rainwater harvest, stops rainfall, opens gate valve, is vented cistern.
Preferably, the rain leader downspout is located at the side of cistern, and the liquid level gauge is arranged in cistern relative to rain
The opposite side of water standpipe, and it is not less than 50mm apart from water storage pool wall.
Preferably, rain leader downspout bottom connects 90 degree of elbows, and the water outlet of 90 degree of elbows connects Self-controlled electromagnetic valve, from
It need to be located at cistern through another 90 degree of elbows connection rain leader downspout delivery ports, the rain leader downspout delivery port after control electromagnetic valve
8cmm ~ 15cm above bottom surface, flood stream to be formed in working condition.
Preferably, the material of the cistern is anti-oxidant, corrosion-resistant, easy cleaning material.
Preferably, the controller uses PLC control circuits, and the PLC control circuits are arranged at cistern Chi Ding.
Preferably, siphon pipe water outlet one end is fixed with cistern bottom surface, and water suction one end mouth of pipe is highly slightly above cistern pond
Bottom, siphon tube wall highest point are concordant with cistern pond top inwall.
Another object of the present invention is to provide a kind of application method of roof rain water runoff measuring device, room can be quantified
The actual effect that top virescence rebuild is cut down rainfall runoff.
To achieve these goals, design of the invention is:A kind of user of roof rain water runoff measuring device
Method, it is characterised in that
Cistern is set below rain leader downspout delivery port, and rain leader downspout bottom connects 90 degree of elbows, the delivery port of 90 degree of elbows A,
Place's connection Self-controlled electromagnetic valve, automatic control solenoid valve is behind the door through another 90 degree of elbow connection rain leader downspout delivery ports, cistern bottom
Portion sets pressure sensor;Siphon pipe is set in cistern, liquid level gauge is also set up in cistern, cistern exit sets lock
Valve;
B, when rainfall starts, cistern gate valve is closed, pressure when pressure sensor measurement cistern pressure is empty water, controller control
Self controlling valve processed is opened, and rain water on roof is collected through rain leader downspout and flowed into cistern, and in accumulation in cistern until reaching
Chi Rong, now pressure sensor measurement cistern pressure position full water when pressure, controller control Self controlling valve closure, stop into
Water, and once counted;Meanwhile water surface elevation reaches highest in siphon pipe, water side starts water outlet, and siphonic effect is touched
Hair, until water storage pool inner water almost all is discharged after siphon, cistern is emptied;After emptying, pressure sensor is able to again
The signal of Self controlling valve is opened in secondary output, and repeats above step until stopping rainfall;
C, calculate rain leader downspout and collect gross rainfall V1:
V1:Rain leader downspout collects gross rainfall;
v:The maximum amount of water that cistern can carry(Chi Rong);
n:The number of siphon triggering, i.e., the number that controller meter obtains;
v’:Water in the counted cistern of reading of last liquid level gauge;
D, by roofing catchment area and the data that observation station rainfall gauge measures are closed on, you can know the rainwater total amount for dropping to roofing
V2, V1 and V2 ratio are the runoff coefficient of this rainfall.
By the way that the run-off of rainfall twice can quantify roof greening transformation to rainfall runoff before measurement transformation and after transformation
The actual effect of reduction.
The Roof Runoff process that the present invention can discharge in rainfall of accurate measurement through rain leader downspout;With reference to rainfall gauge
Real-time monitoring, so as to quantify roof greening transformation to rainfall runoff cut down actual effect.The rainwater measurement apparatus
On the basis of transformation is implemented to present situation building drainage system against rain, have in rainfall of accurate measurement through rain leader downspout
The Roof Runoff process of discharge, so as to quantify the actual effect that roof greening transformation is cut down rainfall runoff so that design
Person and user can be more directly perceived, apparent understanding roof greening to runoff volume reduction effect.
Brief description of the drawings
Fig. 1 is the profile of the present invention.
Fig. 2 is the structural representation of the present invention.
Fig. 3 is the specific embodiment of the invention, the rainfall line formed before the transformation measured by unit interval rainfall volume
With the rainwater discharge curve formed by water storage variable quantity in the unit interval.
Fig. 4 is the specific embodiment of the invention, the rainfall line formed after the transformation measured by unit interval rainfall volume
With the rainwater discharge curve formed by water storage variable quantity in the unit interval.
In figure:1- rain leader downspouts, 2- siphon pipes, 3-PLC control circuits, 4- liquid level gauges, 5- pressure sensors, 6- gate valves
.7- Self controlling valve.
Embodiment
To make the object of the invention, advantage definitely, the embodiment of the present invention is carried out below in conjunction with accompanying drawing
It is described in detail.
A kind of roof rain water runoff measuring device, it is characterised in that the measurement apparatus includes
Cistern, the cistern are arranged at below the delivery port of rain leader downspout 1;
Pressure sensor 5, the pressure sensor 5 are arranged at columns base;
Siphon pipe 2, the siphon pipe 2 is arranged in cistern, and bottom of pond is fixed in one end;
Self controlling valve 7, the Self controlling valve 7 are arranged at cistern water inlet;
Controller, when pressure sensor 5 detects that water storage water is full, control Self controlling valve is closed, and stops water inlet, and carry out one
Secondary counting;When pressure sensor 5 detects cistern emptying, control Self controlling valve is opened, and recovers water inlet;
Liquid level gauge 4, the liquid level gauge 4 is arranged in cistern, for measuring liquid level in cistern;
Blow-down pipe, the delivery port connection of the blow-down pipe and cistern, for cistern rainwater to be discharged.
Preferably, the cistern bottom of pond is made as the slope that the gradient is 2%.
Preferably, energy dissipating plate is provided with the cistern, the energy dissipating plate is located at below the outlet of soil stack 1.Disappear
Energy plate has energy dissipating effect so that cistern end stable level can be surveyed, and can prevent from depositing.
Preferably, the cistern delivery port and blow-down pipe junction set gate valve 6, to control in cistern water storage and
Emptying.
Preferably, the rain leader downspout 1 is located at the side of cistern, the liquid level gauge 4 be arranged in cistern relative to
The opposite side of rain leader downspout 1, and it is not less than 50mm apart from water storage pool wall.
Preferably, rain leader downspout bottom connects 90 degree of elbows, and the water outlet of 90 degree of elbows connects Self-controlled electromagnetic valve, from
It need to be located at cistern through another 90 degree of elbows connection rain leader downspout delivery ports, the rain leader downspout delivery port after control electromagnetic valve
8cmm ~ 15cm above bottom surface, flood stream to be formed in working condition.
Liquid level gauge 3 is arranged at cistern water outlet, and use is simple in construction, the convenient floating ball type liquid-level meter of debugging.
Thus, the application method of a kind of roof rain water runoff measuring device of the invention, it is characterised in that
Cistern is set below rain leader downspout delivery port, and rain leader downspout bottom connects 90 degree of elbows, the delivery port of 90 degree of elbows A,
Place's connection Self-controlled electromagnetic valve, automatic control solenoid valve is behind the door through another 90 degree of elbow connection rain leader downspout delivery ports, cistern bottom
Portion sets pressure sensor;Siphon pipe is set in cistern, liquid level gauge is also set up in cistern, cistern exit sets lock
Valve;
B, when rainfall measures, measured by cistern, specifically include step
A, cistern gate valve is closed;
B, pressure when pressure sensor measurement cistern pressure is empty water, controller control Self controlling valve are opened;
C, rain water on roof is collected through rain leader downspout and flowed into cistern, and is held in accumulation in cistern until reaching pond;
D, now pressure sensor measurement cistern pressure position full water when pressure, controller control Self controlling valve closure, stop into
Water, and once counted;Meanwhile water surface elevation reaches highest in siphon pipe, water side starts water outlet, and siphonic effect is touched
Hair, until water storage pool inner water almost all is discharged after siphon, cistern is emptied;After emptying, pressure sensor is able to again
The signal of Self controlling valve is opened in secondary output, and repeat step c and d is until stop rainfall;
C, calculate rain leader downspout and collect gross rainfall V1:
When cistern last time is intake, the water surface possibly can not reach siphon pipe peak, i.e. siphon can not trigger, then by people
The mode of part work and part study number, water level real on liquid level gauge is read, cistern is then emptied by blow-down pipe.So eventually through water storage
The rain leader downspout that pond measures collects gross rainfall:
V1:Rain leader downspout collects gross rainfall;
v:The maximum amount of water that cistern can carry(Chi Rong);
n:The number of siphon triggering, i.e., the number that controller meter obtains;
v’:Water in the counted cistern of reading of last liquid level gauge;
D, by roofing catchment area and close on the points of measurement according to understand drop to roofing rainwater total amount V2, V1 and V2 ratio
The as runoff coefficient of this rainfall.
By the way that the run-off of rainfall twice can quantify roof greening transformation to rainfall runoff before measurement transformation and after transformation
The actual effect of reduction.
Example is changed to the roof of Shanghai City downtown unit, it transforms roof area 50m2, monitored each 1 before and after transformation
Field rainfall, rainfall is respectively 12.89mm and 19.01mm, and rainfall duration is respectively 42min and 55min, and it is 3min to prolong peak time
And 7min, runoff coefficient are respectively 0.814 and 0.395.
Specific practice is:
1st, rainfall Monitoring Data is surveyed every 1min, the rainfall Monitoring Data can be measured by rainfall gauge;
2nd, a rainwater flow monitoring data are arranged every 1min.In order to ensure the result of rainwater flow monitoring and rainfall monitoring phase
It is corresponding, so the monitoring frequency of rainwater flow should once either 1min twice or four times, can so be sorted out in 1min
The data at 1min intervals.
3rd, generating process figure, the transformation forward and backward peak delay time is compared.For example before transformation, rainfall peak value appears in 16:43
Point, peak flow appears in 16:46, so transformation leading peak is 3min;And after transforming, rainfall peak value appears in 13:33 points, stream
Amount peak value appears in 13:40 points, so transformation leading peak is 7min;So effect of the final roof greening transformation to Yan Feng is
7min-3min, it is 4min.
4th, rainfall total value and rainwater flow total value are calculated, carries out ratio calculation, calculates runoff coefficient situation of change.Such as
Rainfall is 12.89mm before transformation, and rainfall volume is 644.28L, and it is 524.31L to detect stream, then play rainfall runoff coefficient
For 0.814;Rainfall is 19.01mm before such as transforming, and rainfall volume is 950.65L, and it is 375.62L to detect stream, then play drops
Rain runoff coefficient is 0.395.
By the rainwater flow of the system monitoring rain water on roof downpipe, with reference to the rainfall monitoring of online rainfall monitoring instrument
Data, it can be used for after assessing a rainfall, the ratio of overall rainwater flow and rainfall(Runoff coefficient), it can be seen that room
The situation of change of the front and rear runoff coefficient of face spongeization transformation.
The technical scope of the present invention does not limit to.Embodiments above is only explanation of the invention, art technology
Personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but as long as
All protected in scope of the presently claimed invention by Patent Law.
Claims (8)
1. a kind of roof rain water runoff measuring device, it is characterised in that the device includes:
Cistern, the cistern are arranged at below rain leader downspout delivery port;
Pressure sensor, the pressure sensor are arranged at columns base;
Siphon pipe, the siphon pipe is arranged in cistern, and bottom of pond is fixed in one end;
Self controlling valve, the Self controlling valve are arranged at cistern water inlet;
Controller, when pressure sensor detects that water storage water is full, control Self controlling valve is closed, and stops water inlet, and carry out one
Secondary counting;When pressure sensor detects cistern emptying, control Self controlling valve is opened, and recovers water inlet;
Liquid level gauge, the liquid level gauge are arranged in cistern, for measuring liquid level in cistern.
2. a kind of roof rain water runoff measuring device according to claim 1, it is characterised in that described device also includes putting
Blank pipe, the delivery port connection of the blow-down pipe and cistern, for cistern rainwater to be discharged.
3. a kind of roof rain water runoff measuring device according to claim 1, it is characterised in that set in the cistern
There is energy dissipating plate, the energy dissipating plate is located at below soil stack outlet.
A kind of 4. roof rain water runoff measuring device according to claim 1, it is characterised in that the cistern delivery port
Gate valve is set with blow-down pipe junction.
5. a kind of roof rain water runoff measuring device according to claim 1, it is characterised in that the rain leader downspout is located at
The side of cistern, the liquid level gauge are arranged at relative to the opposite side of rain leader downspout in cistern, and apart from water storage pool wall not
Less than 50mm.
6. a kind of roof rain water runoff measuring device according to claim 1, it is characterised in that rain leader downspout bottom connects
90 degree of elbows, the water outlet connection Self-controlled electromagnetic valve of 90 degree of elbows, automatic control solenoid valve connect through another 90 degree of elbows behind the door
Rain leader downspout delivery port is connect, the rain leader downspout delivery port need to be located at 8cmm ~ 15cm above cistern bottom surface, and formation floods
Stream.
A kind of 7. roof rain water runoff measuring device according to claim 1, it is characterised in that siphon pipe water outlet one end with
Cistern bottom surface is fixed, and water suction one end mouth of pipe is highly slightly above cistern bottom of pond, siphon tube wall highest point and cistern Chi Ding
Inwall is concordant.
A kind of 8. application method of roof rain water runoff measuring device, it is characterised in that
Cistern is set below rain leader downspout delivery port, and rain leader downspout bottom connects 90 degree of elbows, the delivery port of 90 degree of elbows A,
Place's connection Self-controlled electromagnetic valve, automatic control solenoid valve is behind the door through another 90 degree of elbow connection rain leader downspout delivery ports, cistern bottom
Portion sets pressure sensor;Siphon pipe is set in cistern, liquid level gauge is also set up in cistern, cistern exit sets lock
Valve;
B, when rainfall starts, cistern gate valve is closed, pressure when pressure sensor measurement cistern pressure is empty water, controller control
Self controlling valve processed is opened, and rain water on roof is collected through rain leader downspout and flowed into cistern, and in accumulation in cistern until reaching
Chi Rong, now pressure sensor measurement cistern pressure position full water when pressure, controller control Self controlling valve closure, stop into
Water, and once counted;Meanwhile water surface elevation reaches highest in siphon pipe, water side starts water outlet, and siphonic effect is touched
Hair, until water storage pool inner water almost all is discharged after siphon, cistern is emptied;After emptying, pressure sensor is able to again
The signal of Self controlling valve is opened in secondary output, and repeats above step until stopping rainfall;
C, calculate rain leader downspout and collect gross rainfall V1:
V1:Rain leader downspout collects gross rainfall;
v:The maximum amount of water that cistern can carry(Chi Rong);
n:The number of siphon triggering, i.e., the number that controller meter obtains;
v’:Water in the counted cistern of reading of last liquid level gauge;
D, by roofing catchment area and the data that observation station rainfall gauge measures are closed on, you can know the rainwater total amount for dropping to roofing
V2, V1 and V2 ratio are the run-off of this rainfall.
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CN201710931089.7A CN107882145A (en) | 2017-10-09 | 2017-10-09 | A kind of roof rain water runoff measuring device and its application method |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110530682A (en) * | 2019-08-02 | 2019-12-03 | 中国电建集团北京勘测设计研究院有限公司 | A kind of monitoring of rain water on roof automatic flow and sample collection method and corresponding device |
CN110806237A (en) * | 2019-10-12 | 2020-02-18 | 华北水利水电大学 | Adjustable surface runoff monitoring device for water and soil conservation |
CN111192697A (en) * | 2018-11-15 | 2020-05-22 | 王彬 | Leakage alarm detection system based on siphon principle |
CN113463740A (en) * | 2021-07-02 | 2021-10-01 | 武汉圣禹排水系统有限公司 | System and method for treating rainwater |
CN113502889A (en) * | 2021-07-02 | 2021-10-15 | 武汉圣禹排水系统有限公司 | System and method for distributing roof rainwater |
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