CN109499220A - Cross-ventilation improves air quality systems - Google Patents
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Abstract
The invention discloses a kind of cross-ventilations to improve air quality systems, including cross-ventilation device and control power distribution cabinet；The cross-ventilation device includes the air duct that a top and bottom penetrate through, and the bottom of the air duct is air inlet, and top is exhaust outlet；The inside of the air inlet is equipped with heating component；The air of lower part in air duct is blowed to top when the flabellum rotates by the flabellum that the middle part of the air duct is equipped with electric machine assembly and is driven by electric machine assembly；In the air duct, inside top be equipped with muffler and air-flow velocity, temperature sampling sensor；The upper inner of the air duct, which is equipped with, increases rain component；The control power distribution cabinet includes that system controller, system power and electrical parameter collector, power regulation matrix controller, soft activator and flame item sow controller.
Description
Technical field
The present invention relates to air quality improving environment field, especially a kind of cross-ventilation improves air quality systems.
Background technique
With the development of industrialization society, the economy and society activity of high density population is increasing, a large amount of nuisance
Matter is discharged into air, changes the normal composition of air, have exceeded air self-purification capacity can tolerance range, pure air
Become fewer and fewer, air quality go fromes bad to worse, and forms serious air pollution.
The haze weather frequently occurred in recent years be exactly air pollutants and specific meteorological condition interaction as a result,
Huge harm and influence are brought to the mankind, is concentrated mainly on several aspects, first is that the harm to human health, it has been reported that,
The whole world is every year directly or indirectly because the people of heavy fog haze death is ten thousand up to more than 300, wherein China just has nearly million；Second is that life
The harm of object, including the harm to animal and plant；Third is that the harm to all kinds of articles, as construction material, metal product,
The harm of textile, rubber, leather, paper products and all kinds of culture and arts and historical relic；Fourth is that climate change can be aggravated；Fifth is that
Aggravate the generation etc. of rainfall acidification and other acidic fallouts.
Currently, improving the more mature method of air quality using technological means is only limitted to interior, such as air purifier.
For outdoor moving air, although there is certain methods, such as except haze tower, superfine spray sprinkling, electromagnetic wave and ionization technique are answered
With etc., the effect that these methods have is unobvious, and some lacks the basic condition being widely applied, and some not yet acquirements can prove that
Effective test data.
Summary of the invention
To solve problems of the prior art, the present invention provides a kind of cross-ventilations to improve air quality systems,
The system is manufactured by " power " and " heating " and surrounding air is driven to generate rapid increase movement, formed cross-ventilation, promoted
Into air exchange.When having the weather condition for being conducive to rainfall generation, starting catalyst manufactures function and by ascending motion
Catalyst, which is brought into, becomes the nuclei of condensation or Cheng Binghe in cloud, water droplet in cloud is promoted constantly to increase, and increases natural precipitation process rain
Amount, realization, which is increased rain artificially, cleans the purpose of haze air.
The technical solution adopted by the present invention is that:
A kind of cross-ventilation improvement air quality systems, including cross-ventilation device and control power distribution cabinet；The air pair
Stream device includes the air duct that a top and bottom penetrate through, and the bottom of the air duct is air inlet, and top is exhaust outlet；
The inside of the air inlet is equipped with heating component；The middle part of the air duct is equipped with electric machine assembly and by electric machine assembly
The air of lower part in air duct is blowed to top when the flabellum rotates by the flabellum of driving；In the air duct, push up
Muffler and air-flow velocity, temperature sampling sensor are equipped on the inside of portion；It is equipped in the top interlayer of the air duct and increases rain
Component communicates at the top of the top interlayer and air duct of the air duct；The control power distribution cabinet includes system control
Device, system power and electrical parameter collector, power regulation matrix controller, soft activator and flame item sow controller, the system
System controller sows controller and air-flow velocity, temperature with system power and electrical parameter collector, soft activator, flame item respectively
The connection of sampling sensor signal, the system power and electrical parameter collector respectively with power regulation matrix controller and soft open
Dynamic device signal connection, the power regulation matrix controller are connect with heating component signal, the soft activator and motor group
The connection of part signal, the flame item are sowed controller and are connect with rain component signals are increased.
For status both at home and abroad, on the basis of abundant investigation and scientific experimentation, the invention proposes a kind of improvement air matter
The completely new approach of amount --- cross-ventilation method, development and design cross-ventilation improve air quality systems.
The principle is as follows:
City generates weight haze weather, and there are two main weather factor, the quiet wind being horizontally oriented.Quiet wind represents sky
Gas does not flow in the horizontal direction, is unfavorable for the diffusion and dilution of suspended particulates in atmosphere, is easy in city and suburb nearby week
Side accumulation.
Two inversions being vertically oriented.In general, temperature in atmosphere convection layer is with the relationship that highly tapers off, every about
100m is increased, temperature can reduce by 0.6 DEG C, and such temperature lamination is conducive to air and generates vertical movement, accelerates the expansion of air
It dissipates, because the air of heat can rise, cold air can sink.But under certain condition, can often occur gas in troposphere
Temperature increases with height and is referred to as inversion the phenomenon that rise, on meteorology, and the atmosphere that temperature inversion occurs is known as inversion layer
(as shown in Figure 3).
Inversion is divided into radiation inversion, advection inversion, Orographic inversion, subsidence inversion and turbulence inversion etc. according to origin cause of formation difference.
City haze is mainly related with radiation inversion and Orographic inversion.
Radiation inversion frequently occurs in the sunny night sky, since Effective radiation is very strong, under ground layer temperature is rapid
Drop, and the cooling of eminence atmosphere is less, thus temperature inversion cold under being warmed up on occurring.It is most strong before this inversion dawn, after sunrise
Weaken from top to bottom or disappears.
Orographic inversion is caused by landform, mainly in basin and valley floor, since around hillside rapid heat dissipation, cold air follow mountain
Slope sinks to basin bottom or the lowest point, and the original warmer air in basin bottom or the lowest point squeezes into liters by cold air lift, thus occur temperature
Set phenomenon.
Inversion in vertical direction, so that the air vertical movement in atmosphere low latitude is restricted, inversion layer is as one
" pot cover " covers in the overhead in city, and air-borne particulates are difficult to drift to high-altitude and are arrested in low latitude and near the ground, more long-pending
It is thicker.
Air is allowed to move up to the direct manufacture level movement in city, the kinetic energy for needing to expend will be very huge, true
On be impossible.But, using technological means, high haze air is driven to generate movement in vertical direction, and effectively spread
To the ground fog haze region in high-altitude and high-altitude periphery, then want much feasible.This is because pasting ground in ground layer under haze weather
The height of inversion layer is usually not high (as shown in Figure 3), need to only provide appropriate kinetic energy and thermal energy, so that it may lower cost-push
The high haze cross-ventilation of ground layer gets up.
It is in city or large scale industry exhaust emission discharge enterprise location that cross-ventilation method, which improves air quality technology,
Building roof or other places, choose a certain height layer, take power and heating measures, artificially manufacture and surrounding air is driven to produce
Raw ascending motion, forms cross-ventilation, so that the haze air in inversion is broken through inversion resistance and go to high-altitude, promote
The inside and outside ground layer air in city sufficiently exchanges, and effectively inhibits the formation of heavy fog haze or reduces haze concentration, or by industrial waste gas
Quickly it is discharged into high-altitude other than inversion.When having the weather condition for being conducive to rainfall generation, starting catalyst manufactures function
Can and bring catalyst by ascending motion becomes the nuclei of condensation or Cheng Binghe in cloud, water droplet in cloud is promoted constantly to grow up, and increases
Natural precipitation process rainfall, realization, which is increased rain artificially, cleans the purpose of haze air or industrial waste gas.
It is important to note that although the ascending air after breaching inversion layer has compensation down draft to accompany,
But inversion characteristic determines that this compensation sinking is only limitted to inversion layer or more because sink the air that heats to inversion layer top with
Afterwards, temperature has reached highest, it is impossible to return in inversion layer.
According to above-mentioned principle, the present invention provides cross-ventilations to improve air quality systems, mainly by electric machine assembly, disappear
Sound device, heating component increase rain component, air-flow velocity, temperature sampling sensor composition.The top of cross-ventilation device is vertical
Upward exhaust outlet, bottom periphery are air inlet.Contour dimension (length, width and height) 2m*2m*3.6m, gross weight 1500Kg.Using dual
Noise reduction and cushion technique ensure it conform to relevant national standard requirement.
Preferably, the cross-ventilation device further includes monitoring camera and big destiny of the camera lens towards air duct
According to collector；The system controller is also connect with monitoring camera and atmosphere data collector signal respectively.
Atmosphere data collector is worked as acquiring the data such as atmospheric temperature, humidity, PM2.5, PM10 according to Parameter analysis
When having the possibility that heavy fog haze occurs or having occurred and that heavy fog haze, by system controller activation system manufacture cross-ventilation to improve
Air quality.Monitoring camera is used for the operating condition of monitoring device.It can be equipped with network communication module, passed through by system controller
Relevant air quality data information and device operating condition are sent to control centre by network communication module.
Heating component is mainly used for cross-ventilation device initial start stage heating air, promotes air more rapidly to rise, breaks through
" constraint " of inversion layer.Heating function uses within 1 hour of head at the beginning of device starts, once the rising passway of air-flow is fast
Run-up is vertical, can not use.
Preferably, at the gas outlet be equipped with rain-proof top to be opened/closed open-and-close mechanism, the flame item sow controller also with
The connection of rain-proof top open-and-close mechanism signal.
It is preferable in rainy day or air quality, not starter run when, can closed rainproof open close device protection air pair
Flow device.
Preferably, the cross-ventilation device further includes GPS module, and the system controller is also believed with the GPS module
Number connection.
The beneficial effects of the present invention are:
1, it manufactures ascending motion function: being sucked from bottom and air, 1.25 m of discharge area are discharged vertically upward2, on
Lifting speed 42m/s, rise flux up to 52.5m3/s(189000m3/ h) left and right, surrounding air is driven by manufacture ascending motion
Cross-ventilation is formed, so that the haze air in inversion is broken through inversion resistance and goes to high-altitude, promote ground layer air
Sufficiently exchange effectively inhibits the formation of heavy fog haze or reduces haze concentration, or industrial waste gas is quickly discharged into inversion with
Outer high-altitude.
2, heat the function of air: heating flows through 2 DEG C of air themperature in cross-ventilation device, by heating, promotes to paste
Air in ground inversion layer can faster rise.Heating function makes within 1 hour of head at the beginning of cross-ventilation device starts
With can not use once the rising passway of air-flow is quickly established.
3, catalyst manufactures function: when having the weather condition for being conducive to rainfall generation, increasing rain component will by burning
KCl or AgI etc. is dispersed into particle, by cross-ventilation device manufacture ascending motion carry it into cloud become the nuclei of condensation or
At ice-nucleus, water droplet in cloud is promoted constantly to grow up, increase natural precipitation process rainfall, realizes the purpose for clean air of increasing rain artificially.
4, detecting function: cross-ventilation device location PM2.5, PM10, temperature, humidity can be detected automatically and is flowed through
The elements such as gas flow temperature, the flow velocity of cross-ventilation device.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
Fig. 2 is the control principle schematic diagram of the embodiment of the present invention；
Fig. 3 is inversion layer schematic diagram in the embodiment of the present invention；
Fig. 4 is that schematic diagram is arranged in the temperature knot layer of experimental design and perpendicular layers in the embodiment of the present invention；
Fig. 5 is the schematic diagram of the ascending air height formed in test analog result in the embodiment of the present invention；
Fig. 6 is the schematic diagram tested different spacing in analog result in the embodiment of the present invention and averagely rise flux；
Fig. 7 is the schematic diagram tested single-point in analog result in the embodiment of the present invention and averagely rise flux；
Fig. 8 is that 5km in analog result is tested in the embodiment of the present invention2Horizontal Winds in the 5m height of spacing distance ground
Variation schematic diagram；
Fig. 9 is that 5km in analog result is tested in the embodiment of the present invention2It is spaced upper elevator caused by cross-ventilation device
Dynamic form schematic diagram；
Appended drawing reference: 1, heating component, 2, electric machine assembly, 3, flabellum, 4, muffler, 5, air-flow velocity, temperature sampling biography
Sensor, 6, increasing rain component, 7, rain-proof top open-and-close mechanism, 8, monitoring camera, 9, atmosphere data collector, 10, GPS module,
11, system controller, 12, system power and electrical parameter collector, 13, power regulation matrix controller, 14, soft activator,
15, flame item sows controller.
Specific embodiment
The embodiment of the present invention is described in detail with reference to the accompanying drawing.
Embodiment 1
As shown in Figure 1 and Figure 2, a kind of cross-ventilation improves air quality systems, including cross-ventilation device and control are matched
Electric cabinet；The cross-ventilation device includes the air duct that a top and bottom penetrate through, and the bottom of the air duct is air inlet
Mouthful, top is exhaust outlet；The inside of the air inlet is equipped with heating component 1；The middle part of the air duct is equipped with motor group
The air of lower part in air duct is blowed to top when the flabellum 3 rotates by part 2 and the flabellum 3 driven by electric machine assembly 2；
In the air duct, inside top be equipped with muffler 4 and air-flow velocity, temperature sampling sensor 5；The air is logical
It is equipped in the top interlayer in road and increases rain component 6, communicated at the top of the top interlayer and air duct of the air duct；It is described
Control power distribution cabinet includes system controller 11, system power and electrical parameter collector 12, power regulation matrix controller 13, soft
Starter 14 and flame item sow controller 15, the system controller 11 respectively with system power and electrical parameter collector 12,
Soft activator 14, flame item are sowed controller 15 and are connected with air-flow velocity, 5 signal of temperature sampling sensor, the system power and
Electrical parameter collector 12 is connect with power regulation matrix controller 13 and 14 signal of soft activator respectively, the power regulation square
Battle array controller 13 is connect with 1 signal of heating component, and the soft activator 14 is connect with 2 signal of electric machine assembly, and the flame item is sowed
Controller 15 is connect with 6 signal of rain component is increased.
When have occurred and that heavy fog haze or will be formed heavy fog haze need to enable cross-ventilation improve air quality systems when,
System controller drives flabellum through soft activator starting electric machine assembly, then, through system power and electrical parameter collector, power
It adjusts matrix controller and starts heating component, manufactured by direct power and the indirect power of heating and drive surrounding air
Ascending motion is generated, cross-ventilation is formed, so that the haze air in inversion is broken through inversion resistance and go to high-altitude, is promoted
It exchanges the inside and outside ground layer air in city sufficiently, effectively inhibit the formation of heavy fog haze or reduces haze concentration, or by Industry Waste
Gas is quickly discharged into high-altitude other than inversion.
When having the weather condition for being conducive to rainfall generation, starting catalyst manufactures function, and system controller is through flame item
It sows controller starting and increases rain component (predominantly catalyst flame item), and catalyst is brought into cloud by ascending motion become
The nuclei of condensation or Cheng Binghe promote water droplet in cloud constantly to grow up, and increase natural precipitation process rainfall, and realization, which is increased rain artificially, cleans mist
The purpose of haze air or industrial waste gas.Flame item sow controller with increase rain component compared with the principle increased rain artificially it is identical, area
It is not, existing artificial snowfall operation method is by the way that catalyst is sent in ground launch rocket, high shell or by aircraft
Enter in cloud, these operation modes must apply for airspace to airspace management department in advance, it is approved after can operation, and it is of the invention
Catalyst is brought into cloud by ascending motion, does not need application airspace.
Air-flow velocity, temperature sampling sensor are used to detect the flow velocity and temperature of air duct interior air-flow, and data are passed
Give system controller.
Embodiment 2
On the basis of embodiment 1, the cross-ventilation device further includes prison of the camera lens towards air duct to the present embodiment
Control camera 8 and atmosphere data collector 9；The system controller 11 is also adopted with monitoring camera 8 and atmosphere data respectively
The connection of 9 signal of storage.
Atmosphere data collector is for acquiring atmosphere data, can analysing whether that heavy fog haze occurs by atmosphere data or having
The possibility of heavy fog haze occurs, so that system controller starting associated component realizes cross-ventilation to improve air quality.
Embodiment 3
The present embodiment is equipped with rain-proof top to be opened/closed open-and-close mechanism 7, institute on the basis of embodiment 2 at the gas outlet
It states flame item and sows controller 15 and also connect with 7 signal of rain-proof top open-and-close mechanism.
Rain-proof top open-and-close mechanism is mainly used for giving cross-ventilation device dust-proof rain cover, as shown in Figure 1, rain-proof top opening-closing machine
Structure can be by the split of muti-piece flashing board with the exhaust outlet of closed air passage, and above-mentioned flashing board is driven by motor rotation and realizes opening and closing,
Motor sows controller control by flame item.Rain-proof top open-and-close mechanism is first opened when each run cross-ventilation device, is then started
Electric machine assembly drives flabellum, finally starts heating component and heats air.When stopping cross-ventilation device every time, then first stop adding
Then hot component stops electric machine assembly, last closed rainproof top open-and-close mechanism.
Embodiment 4
On the basis of embodiment 1, the cross-ventilation device further includes GPS module 10 to the present embodiment, the system control
Device 11 processed is also connect with 10 signal of GPS module.
GPS module is used to provide the position of cross-ventilation device to control centre through system controller, so as to control centre
To cross-ventilation device tracing management.
Occur haze weather inversion height it is usually not high, as Sichuan Chengdu, generally all liftoff 150m with
Under.Observation shows that urban air haze has a maximum value height, this height is slightly below inversion height (" pot cover " top),
It is located at the lower section of " pot cover " caping, Chengdu is about in 80-100m.In this height hereinafter, haze concentration increases with height and increased
Add, more than this height, haze concentration with height increase and reduce, arrive 400-500m height when, concentration can reduce 50% with
On.
The height of cross-ventilation device installation should select the maximum value of haze or second largest value in local inversion high
Degree, this aspect are because this is close highly with a distance from " pot cover " caping, and the high haze air be conducive in inversion layer breaks through lid
The resistance whereabouts high-altitude on top, opposite " laborsaving ".On the other hand, selection, can in haze most " dense " or secondary " dense " height " having an effect "
To obtain most fast improvement.
In order to examine cross-ventilation method to improve the effect of air quality technology, provided for science layout cross-ventilation device
Foundation, special commission hold in the palm the technical team of Nanjing University doctoral advisor Chen Baojun professor, use Mesoscale Simulation system of new generation
Ideal test module in system WRF mode has carried out numerical simulation.
1, experimental design:
Using the cross-ventilation device installation in embodiment 3.Integration step 0.3s；Horizontal lattice point x501, y301；It is horizontal
Resolution ratio 50m；Vertical 109 layers of the number of plies, Ztop10960m, Zdamp5000m；Boundary condition: open boundary condition；Surface temperature
5℃；Inversion height 150m, 4 DEG C of intensity；Ascending air starting altitude 100m, rate of climb 40m/s ,+2 DEG C of thermal perturbation；Just
Beginning wind field quiet wind u=0m/s, v=0m/s (such as Fig. 4).
0.1,0.5,1,3,5,10km are pressed respectively2Interval layout cross-ventilation device.
2, analog result:
(1) the ascending air average height formed is more than 1300m (such as Fig. 5).
By Fig. 5, it can be seen that, simulation reaches stable state after twenty minutes, and average height can exceed that 1300m.0.1km2It is spaced cloth
The cross-ventilation device ascending motion height of office is lower some compared with other interval layouts, and the continuous wave of maximum height
It is dynamic, it may be possible to which that the effect of wind field is more caused than stronger between cross-ventilation device.
(2) the rising flux formed is driven to be significantly greater than the direct rising flux of cross-ventilation device, and inversion layer top
The amount of flux of (150m) is significantly greater than the amount of flux (such as Fig. 6) of height (100m) where cross-ventilation device.
By Fig. 6, it can be seen that, the cross-ventilation device of different interval layout is formed by rising amount of flux and is significantly greater than sky
The direct rising amount of flux of gas convection device, the rising of height is logical where the rising amount of flux on inversion layer top is significantly greater than device
Magnitude.
It is formed by drive rising flux situation in order to analyze rising flux especially cross-ventilation device deeper into ground,
Increase simulates the single-point that resolution ratio is respectively 1m and 2m and averagely rises flux (such as Fig. 7).
Averagely rise throughput quantification value (unit: m3/ s):
100m height: being 948.84 under 1m resolution ratio；It is 2332.55 under 2m resolution ratio；Average 1640.70.
150m height: being 1904.26 under 1m resolution ratio；It is 4091.98 under 2m resolution ratio；Average 2998.12.
Cross-ventilation device sectional area 1.25m2, between 1m and 2m resolution ratio sectional area.150m height is averaged steam
Flux 2998.12m3/ s can represent cross-ventilation device and drive the rising flux to be formed in the value on inversion layer top, be air pair
Stream device directly rises 57.1 times (2998.12/52.5) of amount of flux.
(3) the horizontal convergence of (150m or less) low layer air is brought in inversion layer.
Fig. 8 (position that the larger stain in the figure of the upper left corner is cross-ventilation device) is 5km2Interval layout cross-ventilation
Horizontal Winds of the device in the height of 5 meters of ground, it can thus be seen that formd in 15 minutes and flow to each cross-ventilation device
The convergence air-flow at center about after half an hour, forms the air spoke that peripheral air all blows to cross-ventilation device group center
It closes.
(4) the lasting vertical ascending motion (such as Fig. 9) in inversion layer to the above air of inversion layer is brought.
It is strong ascending motion that cross-ventilation device center, which can be seen, by Fig. 9 left figure, and surrounding is compensation sunken caves,
Inversion layer characteristic determines that this compensation sinking is only limitted to inversion layer or more, this is because compensation down draft reaches inversion layer
After top, temperature has reached highest, it is impossible to arrive 150m again hereinafter, this point can also be obtained from 150m height rising flux maximum
Evidence, the strong rising of this air core, the compensation of surrounding are sunk to bringing the lasting maintenance of ascending motion, be conducive to low
Empty high haze air-source source is constantly output to high-altitude out of inversion layer.
3, conclusion:
Atmosphere upstream average height is more than 1300m；It is air pair in the average rising flux of inversion layer top (150m)
Stream device directly rises 57.1 times of flux；There is apparent horizontal convergence in low layer.It is upper to show that power and heating measures manufacture
Elevator is dynamic, and air is driven to produce convergence ascending movement, by haze air-source source high in inversion layer be constantly discharged into inversion layer with
On high-altitude, and again return less than in inversion layer, promoting the inside and outside air in ground layer city sufficiently to exchange, effectively inhibit heavy fog
The formation of haze reduces haze concentration, or industrial waste gas is quickly discharged into high-altitude other than inversion layer.Optional 2km2To 5km2Between
Away from laying cross-ventilation device.
It increases rain artificially about cross-ventilation method:
(1) it increases rain artificially status
Increase rain artificially refer to according to nature precipitation formed principle, artificially supplement it is certain formed precipitation necessary conditions,
Promote water dust to condense or touch and increase into raindrop rapidly, drops to ground.Its method be according to the physical characteristic of different cloud layers,
Select proper moment, sow the catalyst such as dry ice, silver iodide, salt fines with aircraft, rocket, antiaircraft gun Xiang Yunzhong, make cloud layer precipitation or
Increase precipitation.
(2) principle and method
Cross-ventilation method principle of increasing rain artificially is identical with existing principle of increasing rain artificially, but have in method it is very big not
Together, as previously mentioned, when having the weather condition for being conducive to rainfall generation, function is manufactured by cross-ventilation device starting catalyst
Can, KCl or AgI etc. is dispersed into particle by burning, carrying it by ascending motion becomes the nuclei of condensation or Cheng Bing in cloud
Core promotes water droplet in cloud constantly to grow up, and increases natural precipitation process rainfall, realizes purpose of increasing rain artificially.
Holding optimal work opportunity is the key that can artificial snowfall operation obtain remarkable result.Existing artificial increasing
Rain operational method is these operation modes by the way that catalyst is sent into cloud in ground launch rocket, high shell or by aircraft
It must apply in advance to airspace management department, it can operation after approved.And the precondition of blank pipe department approval Ground Operation
It is, with the development of aircraft industry, to be difficult to meet this condition, institute on daytime without aircraft within the scope of the neighbouring 30km of setting
Often can just agree to your operation once in a while to night.Even aircraft operation, due to aerospace plane capacity limit, also pass through
Often can be not at all easy to have approved because applying not fly less than airspace, but miss best work opportunity.
Carry out artificial snowfall operation using cross-ventilation device, first is that application airspace is not needed, when can effectively hold operation
Machine；Second is that can guarantee suitable operation density and catalytic amount.Based on these advantages, it can be achieved that the maximization of its operational benefit.
About cross-ventilation device business layout and effect:
(1) cut down Air haze in big or middle city and industrial city at county level
1, business layout
According to the city gross area (containing suburb nearby) every 2km2To 5km2Lay a cross-ventilation device in interval.
2, effect
If according to 2km2A cross-ventilation device is laid at interval, is calculated, every 2km2Range inversion layer top (150m)
Following volume of air is 3.0 hundred million m3, according to analog result, the rising that an average cross-ventilation device is formed on inversion layer top
Flux is 0.10793232 hundred million m3/ h (2998.12 × 3600) is equivalent to high haze air in inversion layer and is replaced per hour
3.6% (0.10793232/3.0).If the outside the city air for participating in exchange is air up to standard, then under urban air haze concentration
Drop rate is 3.6%/h, shows 10 hours of cross-ventilation device continuous work, and urban air haze concentration can be made to decline
36%.If same day inversion height is 100m, then, haze concentration rate of descent is 5.3%/h, can make urban air within 10 hours
Haze concentration decline 53%.
If according to 5km2A cross-ventilation device is laid at interval, is calculated, when inversion height is 150m, city
Air haze concentration rate of descent is 1.4%/h, urban air haze concentration decline 14% in 10 hours.If same day inversion height
When for 100m, then, haze concentration rate of descent is 2.2%/h, city haze concentration decline 22% in 10 hours.
Above data is the effect that cross-ventilation device works in the case where heavy fog haze has been formed.If in heavy fog haze
Cross-ventilation device begins to work when not yet being formed, and subtracting haze effect can be more obvious, and the formation of heavy fog haze can be effectively suppressed.
Although when weight haze weather, weather conditions early period are generally more quiet steady, and shortage is suitable for generating the day gas bar of precipitation
Part, but, weather can always change, once there is turning weather, the effect for clean air of increasing rain artificially just is pulled up a horse
It displays, studies surface, the precipitation bring wet deposition effect of a 3mm or more can make air become pure and fresh.
(2) cut down industrial waste gas in the discharge of priority industry exhaust gas
Some large scale industry exhaust emissions discharge enterprise, as petrochemical plant, thermal power plant, steel plant, coking plant,
Non-ferrous metals smelting works, nitrogenous fertilizer and phosphate fertilizer plant, sulfuric acid plant, chlor-alkali plant, chemical fibre factory, insecticide factory, synthetic rubber plant, paper mill, glass
Glass factory, cement plant etc., the toxic and harmful gas of discharge, serious pollution locality and leeward side's area surroundings, influence human health,
Belong to heavily contaminated source.Although these enterprises can all take measures as required, by emission control in existing range up to standard,
Since understanding needs a process, and investment is too big, there is no the regulation that exhaust gas must be discharged outside inversion layer now, therefore, this
A little emissions are generally still located in inversion layer, become the arch-criminal of haze, significantly exacerbation haze degree.After the technology is implemented,
These priority industry exhaust gas can be discharged outside inversion layer well, while also modify discharge standard for national departments concerned and providing
Theory and practice support.
1, business layout
According to plant area, the enterprise every 1km of occupied area2Lay a cross-ventilation device in interval.Cross-ventilation device placement
In the leeward side of pollutant emission point, as close as possible to emission point, to reduce the amount of pollutant and horizontal direction air exchange.
2, effect
As previously mentioned, the water vapor flux that cross-ventilation device is formed is averaged separate unit up to 2998.12m3/ s, i.e. each second
The air capacity that can be discharged is 2998m3, much larger than the discharge rate of industrial waste gas in same time, therefore, as long as cross-ventilation fills
The position science for setting installation is proper, and the exhaust gas of enterprise's discharge can quickly be taken to the high-altitude of inversion layer or more, reaches 80% or more
Abatement effect.
(3) carry out drought resisting in drought and water-scarce area to increase rain artificially
China is that more one of country occurs for natural calamity in the world, and Droughts are occurrence frequency highest, influence face
Natural calamity most wide, that maximum is threatened to agricultural production, is exerted far reaching influence to social economy.Arid belt carrys out crops water shortage
The underproduction is withered, aggravates deterioration of grasslands and desertification process, causes forest and prairie fire, and bio-diversity is reduced, rareness species
Extinction, hydroelectric generation amount are reduced, and enterprise's limited production stops production, and domestic water is nervous, life-threatening health etc..
1, business layout
Area is laid special stress on protecting in coping with agriculture drought area and forest, it can be by 5km2Lay a cross-ventilation device.It is stored in reservoir
Water flow domain can lay a cross-ventilation device by every 5km.
2, effect
Studies have shown that existing technology of increasing rain artificially, averagely increase rainfall 20%-40%, in special circumstances, it is possible to increase
50%-80%.
In city, great social activities is manually cut down in rain guarantee, and cross-ventilation device can also play unique effect.It is existing
Great social activities ensures that operation is usually that the first and second defence line is arranged in periphery, and rain is allowed to land in advance, and attached in moving point
It is close to carry out excessive catalysis, pass through " striving food " steam, it is ensured that activity venue does not rain.Existing working equipment is difficult to solve excessive urge
Change problem, first is that airspace limits, second is that the catalyst amount of sowing is inadequate, but cross-ventilation device has well solved this problem.
About management platform:
Construction control management platform, carries out computer long-distance control using electronics and modern communications technology, realizes automatic behaviour
Make and manages.According to the GPS positioning of cross-ventilation device present position, all cross-ventilation devices are included in long-range control automatically
Center processed is managed collectively, central control system have the whole network management, video monitoring, collect data, checkout facility state and
The function of manipulating cross-ventilation device work, can arbitrarily start or close the work of one or several cross-ventilation device.
According to different purposes, corresponding Business flow is formulated respectively, carries out operational administrative by regulation.
About investment and performance analysis:
Through calculating, single cross-ventilation improves air quality systems construction cost about 1,200,000 yuan of (RMB), if not examining
The electric increase-volume expense of worry, about 700,000 yuan of construction cost.
(1) cut down urban air haze
If according to every 2km2Building a cross-ventilation improves air quality systems measuring and calculating, an area 100km2City,
50 need to be built, one-time investment needs ten thousand yuan of 3500-6000.If according to 5km2Building a cross-ventilation improves air quality
System, need to build 20, one-time investment only ten thousand yuan of 1400-2400.
It perennially pays wages based on the electricity charge, if a city whole year heavy fog haze number of days is 30 days, cross-ventilation improves empty
Gas quality system works 60 days, average daily work 10 hours, power 290kw, wherein electrical heating power 200kw.Daily power consumption,
1st 290 degree of hour (containing electric heating), 810 degree of 2-10 hour, day counts 1100 degree.60 66000 degree of working day, according to public affairs
Beneficial cause and the preferential principle of big customer, every degree electricity charge are based on 0.3 yuan, 19800 yuan of meter, 30,000 yuan of other costs, and separate unit is empty
Gas convection current improves total 4.98 ten thousand yuan of the spending of air quality systems whole year.It is annual that 50 cross-ventilations improve air quality systems
Total 2,490,000 yuan of cost.20 cross-ventilations improve air quality systems whole year total 99.6 ten thousand yuan of cost
The above investment can allow city dweller from the hardship of weight haze weather, and it is cost-effective that how this account, which is calculated all, it may be said that
Benefit is very huge.
(2) cut down industrial waste gas
Large and medium-sized enterprise lays quantity and is usually no more than 3, construction cost only ten thousand yuan of 210-360.Cost meeting is maintained throughout the year
It increased because of workaday increase, about 800,000 yuan of each enterprise.
By cutting down work, the exhaust gas concentration being discharged into air can be allowed to decline 80% or more, same Benefit.
(3) it increases rain artificially
Lot of domestic and international statistical data shows to implement to increase rain artificially to can produce significant social benefit, economic benefit and life
State benefit, input-output ratio are 60-100 times.
A specific embodiment of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to of the invention
Protection scope.
Claims (4)
1. a kind of cross-ventilation improves air quality systems, which is characterized in that including cross-ventilation device and control power distribution cabinet；Institute
Stating cross-ventilation device includes the air duct that a top and bottom penetrate through, and the bottom of the air duct is air inlet, and top is
Exhaust outlet；The inside of the air inlet is equipped with heating component；The middle part of the air duct is equipped with electric machine assembly and by electricity
The flabellum of thermomechanical components driving, blows to top for the air of lower part in air duct when the flabellum rotates；The air duct
In, inside top be equipped with muffler and air-flow velocity, temperature sampling sensor；It is equipped in the top interlayer of the air duct
Increase rain component, is communicated at the top of the top interlayer and air duct of the air duct；The control power distribution cabinet includes system control
Device, system power and electrical parameter collector processed, power regulation matrix controller, soft activator and flame item sow controller, described
System controller sows controller and air-flow velocity, temperature with system power and electrical parameter collector, soft activator, flame item respectively
The connection of sampling sensor signal, the system power and electrical parameter collector respectively with power regulation matrix controller and soft start
The connection of device signal, the power regulation matrix controller are connect with heating component signal, and the soft activator and electric machine assembly are believed
Number connection, the flame item sow controller with increasing rain component signals connect.
2. cross-ventilation according to claim 1 improves air quality systems, which is characterized in that the cross-ventilation device
It further include monitoring camera and atmosphere data collector of the camera lens towards air duct；The system controller also respectively with prison
Control camera is connected with atmosphere data collector signal.
3. cross-ventilation according to claim 2 improves air quality systems, which is characterized in that be equipped at the gas outlet
Rain-proof top to be opened/closed open-and-close mechanism, the flame item are sowed controller and are also connect with rain-proof top open-and-close mechanism signal.
4. cross-ventilation according to claim 1 improves air quality systems, which is characterized in that the cross-ventilation device
It further include GPS module, the system controller is also connect with the GPS module signal.
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