CN108301958A - Super High building rainwater micro generation system - Google Patents
Super High building rainwater micro generation system Download PDFInfo
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- CN108301958A CN108301958A CN201810063832.6A CN201810063832A CN108301958A CN 108301958 A CN108301958 A CN 108301958A CN 201810063832 A CN201810063832 A CN 201810063832A CN 108301958 A CN108301958 A CN 108301958A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 76
- 238000013461 design Methods 0.000 claims description 12
- 230000001133 acceleration Effects 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 238000010248 power generation Methods 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005381 potential energy Methods 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 description 20
- 238000000034 method Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000004134 energy conservation Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/08—Machine or engine aggregates in dams or the like; Conduits therefor, e.g. diffusors
-
- 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
- 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
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention discloses a kind of Super High building rainwater micro generation systems, it is intended to utilize low-cost equipment, realize the high efficiency power generation of high potential energy rainwater.The system includes the rainwater collection header being sequentially communicated, rainwater circulation duct, power generator, rainwater collection header is fixed at the top of building, rainwater circulation duct is vertically provided at building body sidewall, and extends to building bottom, and the water outlet of rainwater circulation duct is equipped with to control the nozzle of water velocity；Power generator includes the generator and Microturbine of coupled configuration, the volute chamber of Microturbine is spiral shape, Microturbine is equipped with the water inlet pipe and outlet pipe of vertical direction, and water inlet pipe is arranged far from Microturbine central axes direction, and outlet pipe is arranged along Microturbine central axes direction；Water inlet pipe is connected to nozzle, and outlet pipe is communicated with water output duct.The present invention can obviously reduce resistance of the turbine to flow, improve the running effect and generated energy of the hydraulic turbine, have significant economic benefit and social benefit.
Description
Technical field
The present invention relates to clean energy resourcies to utilize technical field, and in particular to a kind of Super High building rainwater micro generation system
System, the system can significantly reduce the energy loss during rain water electricity generating, obtain the generated energy of bigger.
Background technology
With the development of China's economic society and the construction of modern city, the quantity of city high-rise building is increasing rapidly
Long, not only height stretches to more high spatial, and scale is also constantly expanding.In area distribution, the construction of high-rise building is not
Disconnected from economically developed coastal area, upcountry city is shifted, and two, three are transferred to from a line big city such as Beijing, Shanghai, Guangzhou
Line city.According to incompletely statistics, China it is existing oneself build, the high-rise building in building or planning more than 1100, highly from 100 meters
Rise to nearly 600 meters.On the one hand the construction of high-rise building accelerates the process of city modern construction, on the other hand, change
Land surface condition originally increases the probability that extreme Hydrological Events occur.In recent years, Urban Flood Waterlogging event is constantly sent out
Raw, urban ecological environment constantly deteriorates.Therefore, in order to improve urban ecological environment, Urban Natural Resources utilization rate is improved, is needed
One effective rainwater resource develops and uses new way.
In addition, with the increase of urban building quantity, urban water consumption also sharply increases, the supply of originally deficient water resource
It is more nervous.Meanwhile along with the increase of story height, the gravitional force of the rainwater of sewer pipe discharge also increases therewith,
Due to the necessary energy conservation and environmental protection measure of shortage, these available gravitional force is caused to disappear totally, and wherein available water
Resource also slatterning in vain.And at present in existing technology, the efficiency of rain water electricity generating is low, of high cost, it is difficult to popularize.
Invention content
The technical problem to be solved in the present invention is to provide a kind of Super High building rain simple in structure, energy conversion efficiency is high
Water micro generation system.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
Design a kind of Super High building rainwater micro generation system, including be sequentially communicated rainwater collection header, rainwater circulation duct,
Power generator, the rainwater collection header are used to be mounted at the top of Super High building, and the rainwater circulation duct is vertically provided at building
Body sidewall, and building bottom is extended to, the water outlet of the rainwater circulation duct is equipped with to control the nozzle of water velocity；Institute
The generator and Microturbine that power generator includes coupled configuration are stated, the Microturbine includes spiral shape volute chamber, miniature
Turbine is respectively equipped with the water inlet pipe and outlet pipe of vertical direction connection volute casing from top to bottom, and the water inlet pipe is far from described miniature
Turbine central axes direction is arranged, and the outlet pipe is arranged along Microturbine central axes direction；The water inlet pipe and institute
Nozzle connection is stated, the outlet pipe is communicated with water output duct and is equipped with water flow control valve.
Preferably, the Microturbine is tilt-impulse type turbine or Pei Erdunshi turbines.
Preferably, the turbine diameter of the Microturbine is 150~160mm.
Preferably, a diameter of 13mm of the water inlet pipe, a diameter of 30mm of the outlet pipe.
Preferably, the rotating speed of the Microturbine is not less than 500RPM.
Preferably, the end of the nozzle is equipped with convergence mouth.
Preferably, the caliber of the rainwater circulation duct is 0.25m.
Preferably, length >=150m of the rainwater circulation duct.
Preferably, it is based on following formula, according to water velocity at the determining nozzle of designv 2 , determine rainwater circulation duct diameterD：
；
In formula,LFor the length of rainwater circulation duct at rainwater collection header water outlet to nozzle,gFor acceleration of gravity, value 9.81
m/s2；fFor friction coefficient, value 0.02412；HFor head height.
Compared with prior art, the beneficial technical effect of the present invention lies in：
1. the present invention is micro generation system, turbine generation can be driven using high-rise building high water head, by the rain of high potential energy
Water is introduced to by the nozzle that vertical direction is arranged in Microturbine, and using end be there is the nozzle of convergence mouth to improve and flowed into
The water velocity of Microturbine realizes the target that high generating efficiency is obtained using the equipment of low cost；Microturbine
Water inlet pipe, outlet pipe be vertical direction setting, the machine room of Microturbine is spiral shape, can effectively avoid volute casing exit
Flow dispersion, reduce turbine to the resistance of flow, improve the running effect and generated energy of the hydraulic turbine.
2. remarkable in economical benefits：The present invention utilizes the high water head potential energy and miniature hydraulic turbine of Super High building rainwater-collecting
Machine generates electricity, and production cost is low, according to electricity generation system provided by the invention, under conditions of annual precipitation is in 1600mm, and average every 1
Ten thousand m2The accumulation of Super High building rainwater, it can be achieved that annual electricity generating capacity is 271.3 ten thousand kwh, often spend electric 0.7 according to comprehensive electricity rates
Member calculates, then 190.0 ten thousand yuan of economic benefit can be achieved every year.
3. energy conservation and environmental protection：It discharges, belongs to without waste, toxic gas in electricity generation system power generation process provided by the invention
Clean energy resource；In addition, according to Analysis of ecological footprints, if carbon emission amount when generated energy is 1 kWh is 0.94 kg, one 30,000
The building of square meter carries out rain water electricity generating according to electricity generation system provided by the invention, can reduce the carbon emission of 764.97k g daily
Amount, energy conservation and environmental protection.
4. it is nervous to alleviate water resource supply and demand：The present invention accumulates rainwater at the top of building, and inhabitation building temperature and week is adjusted
Side humidity improves inhabitation building ecological environment, and for the rainwater of collection other than being used to generate electricity, water quality after processing can reach earth's surface
Quality of water environmentThe standard of class water can be used for the domestic water, subdistrict greening water, landscape water in region etc., for slow
Solution the contradiction of supply and demand for the water resource, reduction water pollution have a very important role.
Description of the drawings
Fig. 1 is overall structure of the present invention；
Fig. 2 is Microturbine attachment structure schematic diagram of the present invention；
In figure, 1. rainwater circulation ducts, 2. Microturbines, 3. turbines, 4. outlet pipes, 5. water output ducts, 6. flow controls
Valve processed, 7. water inlet pipes, 8. nozzles, 9. rainwater collection headers.
Specific implementation mode
Illustrate the specific implementation mode of the present invention with reference to the accompanying drawings and examples, but following embodiment is used only in detail
It describes the bright present invention in detail, does not limit the scope of the invention in any way.Involved equipment or tool in the examples below
Unless otherwise instructed, it is conventional commercial product；Involved reagent is commercially available conventional reagent unless otherwise instructed；It is involved
And method or step be unless otherwise instructed conventional method or step.
The volume and dimensions of moderate rain water collection tank of the present invention according to building topside area and local average rainfall,
Maximum rainfall peak value carries out Redundancy Design.
Embodiment 1：A kind of Super High building rainwater micro generation system as shown in Figure 1 to Figure 2, including be sequentially communicated
Rainwater collection header 9, rainwater circulation duct 1, power generator.
Wherein, rainwater collection header 9 is used to be mounted at the top of Super High building, and rainwater circulation duct 1 is vertically provided at building body
Side wall, and building bottom is extended to, the water outlet of rainwater circulation duct 1 is equipped with the nozzle 8 that rainwater is introduced to power generator, nozzle
8 end is equipped with convergence mouth, to improve the water velocity reached at power generator；
Power generator includes the generator and Microturbine 2 of coupled configuration, and 2 arbor of Microturbine is directly installed on 120V's
On generator, Microturbine 2 includes spiral volute chamber, and the flow to reduce 2 water outlet of Microturbine is disperseed, and is improved
The running effect of turbine；Microturbine 2 is respectively equipped with the water inlet pipe 7 and outlet pipe 4 of vertical connection volute casing from top to bottom, into
A diameter of 13mm of water pipe 7, and be arranged along the central axes direction far from Microturbine 2, water inlet pipe 7 passes through nozzle 8 and rainwater
Circulation duct 1 is connected to；A diameter of 30mm of outlet pipe 4, and be arranged along 2 central axes direction of Microturbine, outlet pipe 4 is communicated with
Water output duct 5 is simultaneously equipped with water flow control valve 6.
The present invention is the rainwater collected on Super High building roof, and therefore, the length of rainwater circulation duct 1 is not less than
The caliber of 150m, rainwater circulation duct 1 are 0.25m.
In the present embodiment, in order to reduce building collected overhead rainwater energy loss, Microturbine 2 be tilt-impulse type
Turbine or Pei Erdunshi turbines, 3 a diameter of 150~160mm of turbine of Microturbine 2, the rotating speed of Microturbine 2 is not
Less than 500RPM.
Embodiment 2
Application example
（1）Theoretical power generation calculates
It, should be in the mansion by above-mentioned Super High building rainwater micro generation system for selecting the new GuoMao Building in certain city.The mansion
It more than ground it is 50 layers, clear height 212.1m. architectural plane areas are 3.5 ten thousand m2, seen according to the investigation and scene that design building
It surveys, collects this area's rainfall data over the years（Including average annual rainfall and most senior general in peak value）, design rainwater collection header
Volume.
According to the rainwater circulation duct diameter being pre-designedD, friction coefficient in rainwater circulation ductf（Value
0.2412）, the length L of the rainwater circulation duct at head height H, rainwater collection header water outlet to nozzle, by following formula（1）It calculates
Water velocity at nozzlev 2 .It is also possible to according to long-term, the repeatedly design to each parameter in electricity generation system, Yi Jifa
The result verification of electricity is pre-designed and flow to water velocity optimal at nozzle and bev 2 , according to the following formula（1）Calculate rainwater runner pipe
The diameter D in road；
（1）
In formula,gFor acceleration of gravity, value 9.81m/s 2 。
Using the water outlet of rainwater collection header as original state, it is flow at nozzle as last current state using rainwater, according to this process
Middle fluid machinery steady state water flow energy conservation equation, i.e. following formula（2）, simplified to can be obtained above formula（1）；
（2）
Formula（2）In, m is rainwater quality；For the density of rainwater, value is 1000 kg/m3；The water velocity of original state is v1、
Pressure is P1, highly be Z1, and v1For 0 m/s；The water velocity of last current state is v2, pressure P2, highly be Z2, it is big to be located at this
Pressure in the rainwater circulation duct of tall building top and bottom regards equal, i.e. P as1=P2。
According to the facilities design of aforementioned electricity generation system, the law of conservation of energy according to rainwater through power generator before and after the processing,
The theoretical power generation of the building is calculated, relevant parameter refers to table 1.
。
（1）Theoretical power generation is analyzed
Selected Super High building installs rainwater collection header on building top, can accumulate 4.5 ten thousand m of rainwater resource every year3。100
Such building is equivalent to a medium-sized reservoir storage capacity.Rain water electricity generating system designed according to this invention, rainwater harvest can be with
Realize 813.8 ten thousand Kwh of annual electricity generating capacity.0.7 yuan of calculating of electricity is often spent according to comprehensive electricity rates, then economic benefit can be achieved every year
569.6 ten thousand yuan.Comparison finds that China's Three Gorges Reservoir realizes 7.42 hundred million Kwh of generated energy in 2015.It calculates like this, about 100
The annual electricity generating capacity of skyscraper is equivalent to a Three Gorges Reservoir.
（2）Cost of equipment is analyzed
According to Ministry of Water Resources's publication in 2014《Hydraulic Engineering Design general (estimating) calculates Compiling norm》（Water is [2014] No. 429 total）, one
The rainwater utilization electricity generation system of building, including turbine, generator and related corollary equipment, total cost are 150.0 ten thousand yuan.Root
It is estimated according to the market price of generated energy, building can recoup capital outlay for the year.According to device type, service life is 10 years or so.
Operational and administrative expenses is deducted, then more than 4,500 ten thousand yuan of Net economic benefit can be achieved.
（3）Eco-environmental impact
1. belonging to clean energy resource.According to Analysis of ecological footprints, 1 kWh generated energy needs the carbon emission amount of 0.94 kg, according to
This criterion calculation, this case study can reduce the carbon emission amount of 764.97k g daily.In addition, this electricity generation system is not useless
Gurry and toxic and harmful gas discharge, therefore rainwater utilization power generation can reduce environmental pollution, and belong to clean energy resource.
2. rainwater resources utilization.The rainwater of collection is other than power generation, and after processing, the life that can be also used for region is used
Water, subdistrict greening water, landscape water etc..According to present design, every 10,000 m2Skyscraper can accumulate rainwater resource amount
1.5 ten thousand m3, then the reservoir storage of 100 buildings be equivalent to a medium-sized reservoir.After processing, water quality can reach ground to the rainwater of accumulation
Table quality of water environmentThe standard of class water.For alleviating the contradiction of supply and demand for the water resource, reduces water pollution and have a very important role.
3. providing condition for inhabitation building Improvement of Ecological Environment.Due to accumulating rainwater at the top of building, adjusting can be played and occupied
The firmly effect of building temperature and periphery humidity.Studied according to relevant information, Extreme Maximum Temperature can reduce by 1.6~3 DEG C, air it is wet
Coverage is spent from several meters to tens meter.To provide good easy habitat environment for resident.
The present invention is directed to utilize existing low-cost equipment, high water head is realized（The rainwater that superelevation building is collected）The mesh of power generation
, it can not only alleviate the present situation of water resource supply and demand anxiety, the pollution to environment in power generation process can also be reduced, adjust and live
The temperature of building and the humidity on periphery provide good Easy Living Envi-ronment for resident.
The present invention is described in detail above in conjunction with drawings and examples, still, those of skill in the art
Member is it is understood that without departing from the purpose of the present invention, can also carry out each design parameter in above-described embodiment
Change, forms multiple specific embodiments, is the common variation range of the present invention, is no longer described in detail one by one herein.
Claims (9)
1. a kind of Super High building rainwater micro generation system, including be sequentially communicated rainwater collection header, rainwater circulation duct, hair
Electric installation, the rainwater collection header are used to be mounted at the top of Super High building, and the rainwater circulation duct is vertically provided at building body
Side wall, and extend to building bottom, which is characterized in that the water outlet of the rainwater circulation duct is equipped with to control water velocity
Nozzle；The power generator includes the generator and Microturbine of coupled configuration, and the Microturbine includes spiral shape
Volute chamber, and the Microturbine is respectively equipped with the water inlet pipe and outlet pipe of vertical direction connection volute chamber, the water inlet from top to bottom
Pipe is arranged far from Microturbine central axes direction, and the outlet pipe is arranged along Microturbine central axes direction；
The water inlet pipe is connected to the nozzle, and the outlet pipe is communicated with water output duct and is equipped with water flow control valve.
2. Super High building rainwater micro generation system according to claim 1, which is characterized in that the Microturbine
For tilt-impulse type turbine or Pei Erdunshi turbines.
3. Super High building rainwater micro generation system according to claim 1, which is characterized in that the Microturbine
Turbine diameter be 150~160mm.
4. Super High building rainwater micro generation system according to claim 1, which is characterized in that the water inlet pipe it is straight
Diameter is 13mm, a diameter of 30mm of the outlet pipe.
5. Super High building rainwater micro generation system according to claim 1, which is characterized in that the Microturbine
Rotating speed be not less than 500RPM.
6. Super High building rainwater micro generation system according to claim 1, which is characterized in that the end of the nozzle
Equipped with convergence mouth.
7. Super High building rainwater micro generation system according to claim 1, which is characterized in that the rainwater runner pipe
The caliber in road is 0.25m.
8. Super High building rainwater micro generation system according to claim 7, which is characterized in that the rainwater runner pipe
Length >=the 150m in road.
9. Super High building rainwater micro generation system according to claim 1, which is characterized in that it is based on following formula, according to
Design water velocity at determining nozzlev 2 Design rainwater circulation duct diameterD；
In formula,LFor the length of rainwater circulation duct at rainwater collection header water outlet to nozzle,gFor acceleration of gravity, value 9.81
m/s2；fFor friction coefficient, value 0.02412；HFor head height.
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| CN201810063832.6A CN108301958A (en) | 2018-01-23 | 2018-01-23 | Super High building rainwater micro generation system |
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Family
ID=62866165
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| CN1890185A (en) * | 2003-10-09 | 2007-01-03 | 捷通国际有限公司 | Miniature hydro-power generation system |
| CN201190617Y (en) * | 2008-03-28 | 2009-02-04 | 王金根 | Hydraulic transmission gear |
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-
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