CN102383475A - Sewage potential energy recovery system of high-rise building - Google Patents
Sewage potential energy recovery system of high-rise building Download PDFInfo
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- CN102383475A CN102383475A CN2011102465870A CN201110246587A CN102383475A CN 102383475 A CN102383475 A CN 102383475A CN 2011102465870 A CN2011102465870 A CN 2011102465870A CN 201110246587 A CN201110246587 A CN 201110246587A CN 102383475 A CN102383475 A CN 102383475A
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Abstract
He invention relates to a sewage potential energy recovery system of a high-rise building. The sewage potential energy recovery system of a high-rise building comprises a control unit, a water storage device, a sewage source and a turbine generator, wherein the sewage source and the turbine generator are connected to the water storage device through pipes. A water level sensor is arranged in the water storage device. A switch valve is arranged on a drain pipe of the water storage device. The water level sensor and the switch valve are connected to the control unit. The turbine generator is located at the bottom of the high-rise building. A chargeable call is connected to the turbine generator. The water storage device realizes collection and storage of sewage, has the cooperation with the switch valve to realize sewage unified release, enables sewage in a pipe to have a full flow state, and reduces friction loss of potential energy of a small quantity of discharged sewage. The water level sensor of the water storage device realizes water storage state monitoring, can effectively control opening and closing of the switch valve, and can timely and effectively transform sewage potential energy into electric energy. Therefore, the sewage potential energy recovery system of a high-rise building is an energy-saving system having a simple structure and high practical applicability.
Description
Technical field
The invention belongs to the green building field of energy-saving technology, more specifically, relate to a kind of highrise building sewage potential energy recovery system.
Background technology
Highrise building is because its space availability ratio is high; The population density is big; Often have the characteristics that water supply volume is big, displacement is big, and these sewage of discharging has very high potential energy mostly, in the present great majority building; People directly are discharged into public Sewage System with these sewage through pipeline, and the potential energy in the middle of this makes is slatterned in vain.
In the prior art, turbine generator can be through drawing kinetic energy and converting thereof into electric energy utilization to fluid; In above-mentioned highrise building; If be installed on building sewage conduct bottom to turbine generator; Turbine then also can transfer the kinetic energy that sewage is produced to electric energy when eminence falls, the electric energy that utilizes this method to produce can be tried to achieve by following formula.
P＝ηrhg；(1)
Wherein η is a conversion efficiency, and r is flow (kg/s), and h is head height (m), the g force coefficient (9.8m/s that attaches most importance to
2), P is for producing the power (W) of electric energy.
According to the guide (National Bureau of Standards) of NBS, the size of a drainage pipe should be tried to achieve according to following formula.
q＝27.8r
5/3d
8/3；(2)
Wherein:
Q is pipe capacity (gpm); Account for when to be current flow in the pipe ratio of pipeline area of r, Jie is in 1/4～1/3 usually; D is pipe diameter (inch).
Mansion with one 70 floor height is an example; Suppose that every layer of mansion has 20 families, each household has 5 people, and the water supply volume of everyone every day is 168 liters; If put together all sewage; The sewage of this mansion discharging every day is 1176000 liters, and with reference to formula (2), this mansion needs one 4 inches pipeline to come sewage effluent.
Calculate the electric energy that these sewage can produce below, in order to obtain The above results, the kinetic energy when calculating sewage arrival turbine generator earlier; Referring to Fig. 1, be illustrated as sewage and be attached to the flow regime sketch map that flows downward on the duct wall, wherein to account for the pipeline area maximum value be 1/4 to 1/3 to sewage; The center of pipeline is an air, and behind the water pipe flow ipe, water can quicken downwards because of gravity; But water velocity is fast more, and tube wall is also just big more to the frictional force that water applies, after the numerical value of frictional force is equal to gravity; Sewage just can stop to quicken and flowing downward with fixed speed; This speed is called as terminal velocity (Terminal Velocity), and current by static to accelerating to the distance that reaches terminal velocity, be called as ultimate distance (Terminal Length); According to the drainage flow state of NBS's deduction and the formula of flowing velocity thereof, the design formulas of above-mentioned terminal velocity and ultimate distance is following:
L
T＝0.052V
T 2；(4)
V wherein
TBe terminal velocity (fps), L
TBe ultimate distance (ft) that q is discharge (gpm), d is pipe diameter (inch).
With 70 layers of mansion in the last example with have the identical population density and per capita 30 layers of mansion of water supply volume compare; The sewage volume of two mansions generation every day is respectively 1176000 liters and 504000 liters; Suppose that current are the steady motion of a fluid (Steady Flow); According to formula (3) and (4), the effluent stream of two mansions is when separately gutter, and its terminal velocity is respectively 5.46m/s and 3.88m/s.
Because after the sewage current arrive terminal velocity; Sewage can be converted into friction loss to the dirty gravitional force that discharges; So the kinetic energy when it arrives the building bottom is very limited; According to formula (1), if in the building bottom turbine generator is installed and supposes that conversion usefulness is 80%, then the power of turbine generator is merely 162W and 35W.
Considering does not have friction loss in the ideal case, and the release of central potential energy can be converted into kinetic energy, and central kinetic energy also can be converted into electric power through turbine.
Average output power because of turbine generator: P=ρ ghQ.
Wherein: ρ is the density of water, and g is an acceleration of gravity, and h is about half height of building, and Q is a flow.
In the ideal case; Turbine generator is respectively 18kW and 2.85kW at the average output power of 70 layers of mansion and 30 layers of mansion; Be to be about 0.9% and 1.2% with obtainable energy, visible, sewage is very huge along the flow downward friction loss that caused of tube wall; The energy that reclaims is compared with investment, does not calculate very much.
Summary of the invention
The object of the invention overcomes the deficiency of prior art exactly, and a kind of highrise building sewage potential energy recovery system is provided, and adopts the highrise building of this system can be effectively the potential energy of its sewage that produces to be reclaimed, thereby reaches the building energy conservation environmental protection requirement.
In order to achieve the above object, adopt following technological means:
A kind of highrise building sewage potential energy recovery system; Comprise control module, water storage equipment and the source of sewage and the turbine generator that are connected with water storage equipment through pipeline, be provided with level sensor in the said water storage equipment, the drainage pipe of water storage equipment is provided with switch valve; Said level sensor links to each other with control module with switch valve; Said turbine generator is positioned at the bottom of highrise building, and linking to each other with said turbine generator is provided with rechargeable battery, wherein:
Water storage equipment is used for collecting and storage sewage;
Turbine generator is used for the kinetic energy of water storage equipment institute sewage effluent is converted into electric energy;
Rechargeable battery is used to store the electric energy from turbine generator;
Switch valve is used to manage the effluent discharge process of water storage equipment;
Control module is used to receive the break-make of the signal and the gauge tap valve of said level sensor.
Further, said source of sewage comprises one or more in bathroom draining, lavatory draining, washing machine drainage, kitchen draining and the toilet drainage at least.
Again further, the reference value of the switching of said control module gauge tap valve is the feedback information of level sensor in the storage tank.
As a kind of specific embodiment, said switch valve is arranged at the bottom position of water storage equipment.
As another kind of specific embodiment, said switch valve is arranged at the bottom position of highrise building.
Further, said water storage equipment importation end is provided with the filter screen that is used for intercepting solid refuse and sewage suspension.
Further, said filter screen position is provided with the blow-off line that is used for discharging solid refuse and sewage suspension to public sewer.
Compared with prior art, beneficial effect of the present invention is:
At the highrise building medium position water storage equipment is set; Collection and storage have been realized to sewage; Cooperate switch valve that the unified of sewage discharged, the sewage cross-sectional area accounts for the long-pending percentage of cross-section of pipeline when having increased the sewage drainage, makes sewage flowing in pipeline be the flowing full state; The friction loss of sewage potential energy when greatly reducing a small amount of drainage of sewage, the efficient that lets sewage potential energy be converted into electric energy improves greatly; The level sensor link to each other with control module is set in water storage equipment, has realized monitoring, can control the switching of switch valve effectively, can be timely and effectively the potential energy of sewage be converted into electric energy water stored state.
Description of drawings
Fig. 1 is attached to the pipeline section sketch map that flows downward on the duct wall for sewage in the prior art.
Fig. 2 is the pipeline section sketch map that the flowing full state flows downward for sewage in the highrise building sewage potential energy recovery system according to the invention.
Fig. 3 is the structural representation of highrise building sewage potential energy recovery system according to the invention.
Among the figure: the 1-pipeline; 2-sewage; The 3-air; The 4-source of sewage; 5-water storage equipment; The 6-filter screen; The 7-turbine generator; The 8-switch valve; The 9-public sewer.
The specific embodiment
Below in conjunction with description of drawings and specific embodiment, the present invention made further specify:
Referring to Fig. 2 and Fig. 3; Highrise building sewage potential energy recovery system of the present invention; Comprise control module, water storage equipment 5 and source of sewage 4 that is connected with water storage equipment 5 through pipeline 1 and turbine generator 7, wherein be provided with level sensor in the water storage equipment 5, the drainage pipe of water storage equipment 5 is provided with switch valve 8; Above-mentioned level sensor links to each other with control module 10 with switch valve 8; Turbine generator 7 is positioned at the bottom of highrise building, and linking to each other with said turbine generator 7 is provided with rechargeable battery, wherein:
Rechargeable battery is used to store the electric energy from turbine generator 7;
Control module 10 is used to receive the break-make of the signal and the gauge tap valve 8 of said level sensor.
In the above-mentioned functions module; Source of sewage 4 comprises one or more in bathroom draining, lavatory draining, washing machine drainage, kitchen draining and the toilet drainage at least; Wherein the solid matter in the sewage damages the blade of turbine generator, needs to handle to remove the dirt in the water through filtering to wait earlier like dirtier sewage such as lavatory drainings; By the pipeline of water storage equipment 5 to the highrise building bottom, its selection all need note with making, and the impact force in the time of fully taking into account huge pressure and the drainage flow of sewage will prevent also that simultaneously antipriming pipe gets rusty, seepage, for example selects the higher plastic material of hardness.In addition, inner-walls of duct should be smooth as far as possible, to reduce friction loss and the turbulent chance that takes place.In order timely and effectively the effluent discharge process in the storage tank to be controlled; Said control module opens and closes based on the feedback information command switch valve of level sensor in the storage tank; As a kind of specific embodiment, above-mentioned switch valve can be arranged at the delivery port position, bottom of water storage equipment, also can be arranged at the bottom position of highrise building; In order to guarantee that the suspension in the sewage can not influence the running of turbine generator; Said water storage equipment importation end is provided with the filter screen that is used for intercepting solid refuse and sewage suspension, and with it correspondingly, the filter screen position is provided with the blow-off line that is used for discharging solid refuse and sewage suspension to public sewer 9; The electric energy that above-mentioned turbine generator produces can directly be incorporated the mansion electrical network into and supplies power, and also can be that rechargeable battery is used in rechargeable battery charging back.
Above-mentioned height and floor about water storage equipment place need be tried to achieve after the water yield and its callable potential energy are optimized calculating, can also therefrom calculate the electric energy that can reclaim potential energy and produced as variable by water storage equipment place height in the computational process:
If water storage equipment place highly is z, the formula of then being advised according to highrise building and the urban settlement committee (CTBUH), floor and relation of height can roughly be expressed as:
Wherein s is a floor, H
Dwelling houseHeight for the s floor house.
And the discharge of sewage of highrise building
Q＝[(H-z-7.151)/3.152]×n×c×p；(6)
Wherein H is the floor overall height, and z is the height of water storage facility place floor, and n is each floor resident family number, and c is an average size, and p is everyone average every day of water use amount.
The average output power of turbine generator
P＝ηρgzQ；(7)
Wherein η is conversion efficiency (in 80%); ρ is the density of water, and the g force coefficient of attaching most importance to, z are height, and Q is a flow.
Simultaneous (6), (7) Shi Kede:
P＝10-5((H-7.151)z-z
2)ηncp；(8)
Formula (8) is carried out differential,, highly can calculate average output power based on this with obtaining the maximum required story height of water storage equipment of average output power:
Because second dervative is a negative value, proves that this function (8) has maximum value, can be zero trying to achieve through making first derivative.The peaked water storage facility height of the average output power that obtains can be tried to achieve in order to following equation:
H-7.151-2z＝0，(11)
Obtain the optimization height of water storage equipment through conversion
z＝(H-7.151)/2；(12)
This moment turbine generator average output power
P＝9×10-6(H-7.151)2ηncp；(13)
Certainly, above formula only is the estimation purposes, and every mansion structure is different in the reality, and central formula must be improved.
Based on above-mentioned module and interconnected relationship thereof, highrise building sewage potential energy recovery system of the present invention, its operating principle is following:
When the discharging of the source of sewage in highrise building sanitary sewage, its sewage flows in the water storage equipment 5 via pipeline, and wherein bathroom draining, lavatory draining, washing machine drainage, kitchen draining can directly be disposed in the water storage equipment 5; The rest room draining is because need preliminary treatment, so be sent to water storage equipment 5 via another independent tubes, this moment, switch valve 8 was in closed state; Level sensor in the water storage equipment 5 continues water level information is fed back to control module, and when the water yield in the water storage equipment 5 increased gradually and reaches certain setting value, control module command switch valve 8 was opened; Then sewage begins drainage; Because turbine generator 7 is arranged at the highrise building bottom position, when sewage flowed downward from water storage equipment 5, its gravitional force just can convert the kinetic energy of water to; Thereby the sewage that flows down drives turbine generator 7 generatings because of motion promotes turbine; Turbine generator 7 electricity can be stored in rechargeable battery, and the power transmission network that also can incorporate mansion into utilizes, when the water yield in the water storage equipment 5 is lower than another setting value; Control module can be closed by command switch valve 8 again; Then after this in water storage equipment 5, accumulate once again and reach the drainage value once more up to water level from the sewage continuation of source of sewage 4, so circulation, thus realized recovery to sewage potential energy.
In above process; Because water storage equipment is to the collection and the temporary effect of sewage; Each water storage equipment all can reach the flowing full state in the drainage of sewage in period in pipeline that discharge water, and promptly sewage takes the whole piece pipeline when mobile, though inner-walls of duct can apply resistance to sewage in this process; But the sewage of pipeline central authorities only receives few drag effects, can reduce the restriction that friction loss is applied sewage potential energy removal process greatly.
Still two mansions with aforementioned 70 floor heights and 30 floor heights are example; According to calculating of above-mentioned formula (1) and formula (5); Adopt two buildings of native system, the optimization height of its sewage is respectively 131 meters and 46 meters, and its average output power is respectively 8KW and 1KW.With this power meter; Two building callable electric energy in 24 hours are respectively 192 degree and 24 degree; Annual recyclable 70080 degree electricity and 8760 degree electricity, obviously, highrise building sewage potential energy recovery system of the present invention; The electric energy of its generation will be 30～50 times of its turbine generation acc power of building that do not adopt native system, improve the efficient of building energy-saving greatly.
Be understood that; The content that above specific embodiment is announced is merely part preferred version of the present invention; Every based on technical scheme of the present invention, technical spirit according to the invention, belong to those skilled in the art and need not to carry out the enforcement that creative work can obtain and all should belong to protection scope of the present invention.
Claims (7)
1. a highrise building sewage potential energy recovery system is characterized in that, comprises control module, water storage equipment and the source of sewage and the turbine generator that are connected with water storage equipment through pipeline; Be provided with level sensor in the said water storage equipment; The drainage pipe of water storage equipment is provided with switch valve, and said level sensor links to each other with control module with switch valve, and said turbine generator is positioned at the bottom of highrise building; Linking to each other with said turbine generator is provided with rechargeable battery, wherein:
Water storage equipment is used for collecting and storage sewage;
Turbine generator is used for the kinetic energy of water storage equipment institute sewage effluent is converted into electric energy;
Rechargeable battery is used to store the electric energy from turbine generator;
Switch valve is used to manage the effluent discharge process of water storage equipment;
Control module is used to receive the break-make of the signal and the gauge tap valve of said level sensor.
2. highrise building sewage potential energy recovery system as claimed in claim 1 is characterized in that said source of sewage comprises one or more in bathroom draining, lavatory draining, washing machine drainage, kitchen draining and the toilet drainage at least.
3. highrise building sewage potential energy recovery system as claimed in claim 1 is characterized in that, the reference value of the switching of said control module gauge tap valve is the feedback information of level sensor in the storage tank.
4. highrise building sewage potential energy recovery system as claimed in claim 1 is characterized in that said switch valve is arranged at the bottom position of water storage equipment.
5. highrise building sewage potential energy recovery system as claimed in claim 1 is characterized in that said switch valve is arranged at the bottom position of highrise building.
6. highrise building sewage potential energy recovery system as claimed in claim 1 is characterized in that said water storage equipment importation end is provided with the filter screen that is used for intercepting solid refuse and sewage suspension.
7. highrise building sewage potential energy recovery system as claimed in claim 6 is characterized in that said filter screen position is provided with the blow-off line that is used for discharging solid refuse and sewage suspension to public sewer.
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| CN2011102465870A CN102383475A (en) | 2011-08-25 | 2011-08-25 | Sewage potential energy recovery system of high-rise building |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105198157A (en) * | 2015-08-21 | 2015-12-30 | 武汉银龙泉科技有限公司 | Multistage utilization device of secondary purified water and use method thereof |
| CN114673043A (en) * | 2022-03-08 | 2022-06-28 | 北京市建筑装饰设计工程有限公司 | Sponge urban pavement permeation paving structure and paving method thereof |
| CN114991266A (en) * | 2021-03-01 | 2022-09-02 | 中交第四公路工程局有限公司 | Sewage potential energy recycle system for domestic building |
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| DE3443130A1 (en) * | 1984-11-27 | 1986-05-28 | Waldemar 7120 Bietigheim Tobler jun. | Device for monitoring the water level in the sewage system of a building |
| CN101016877A (en) * | 2007-02-14 | 2007-08-15 | 浙江大学 | Hydraulic energy reutilization device for high-rise building |
| CN201521887U (en) * | 2009-11-18 | 2010-07-07 | 卞亦瑄 | Corridor green public lighting device employing domestic sewages in buildings for power generation |
| CN102140813A (en) * | 2011-02-09 | 2011-08-03 | 刘方旭 | Method and device for generating power for illuminating of corridor lamps by using sewage pipeline of high-rise building |
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2011
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3443130A1 (en) * | 1984-11-27 | 1986-05-28 | Waldemar 7120 Bietigheim Tobler jun. | Device for monitoring the water level in the sewage system of a building |
| CN101016877A (en) * | 2007-02-14 | 2007-08-15 | 浙江大学 | Hydraulic energy reutilization device for high-rise building |
| CN201521887U (en) * | 2009-11-18 | 2010-07-07 | 卞亦瑄 | Corridor green public lighting device employing domestic sewages in buildings for power generation |
| CN102140813A (en) * | 2011-02-09 | 2011-08-03 | 刘方旭 | Method and device for generating power for illuminating of corridor lamps by using sewage pipeline of high-rise building |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105198157A (en) * | 2015-08-21 | 2015-12-30 | 武汉银龙泉科技有限公司 | Multistage utilization device of secondary purified water and use method thereof |
| CN114991266A (en) * | 2021-03-01 | 2022-09-02 | 中交第四公路工程局有限公司 | Sewage potential energy recycle system for domestic building |
| CN114673043A (en) * | 2022-03-08 | 2022-06-28 | 北京市建筑装饰设计工程有限公司 | Sponge urban pavement permeation paving structure and paving method thereof |
| CN114673043B (en) * | 2022-03-08 | 2023-12-29 | 北京市建筑装饰设计工程有限公司 | Sponge urban road surface permeable pavement structure and pavement method thereof |
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Application publication date: 20120321 |
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