CN100542681C - The high, medium and low empty three-dimensional defense line of avenue, the ecotype are blocked dirt, carbocyclic ring insurance system engineering disappears - Google Patents

Abstract

The present invention relates to urban ecological environment, is that the high, medium and low empty three-dimensional defense line of avenue, the ecotype are blocked dirt, carbocyclic ring insurance system engineering disappears.At the present situation that northern avenue drying short of rain, trees lack of water, automobile increase severely, airborne dust is big, tail gas pollution is serious.Make full use of optimum position and the characteristics of motion and the biological nature of water and plant, street high-altitude, hollow, the low latitude intensive in stream of people's wagon flow are provided with three-dimensional defense line.Aerial floating dust is tackled in advance, made to fall dust and no longer fly upward.Change plant growth state, make it bring into play best ecological functions, tail gas is in time subdued, increase the air oxygen content, reduce city greenhouse gas emission and effect of dry island.For the resident provides clean air, comfortable outside environment.Improve the residents ' health level, reduce disease incidence.The present invention possesses water saving, energy-conservation, the uniformity that reduces discharging dirty, low input, high ecological effect, social effect, economic benefits; It is the once unprecedented change of avenue facility that tradition is fallen behind.

Description

The high, medium and low empty three-dimensional defense line of avenue, the ecotype are blocked dirt, carbocyclic ring insurance system engineering disappears

Technical field:

The present invention relates to the urban ecology environmental protection, particularly relate to the cleaning of street environment, the purification of air.

Background technology:

The street is the network of urban transportation, is " artery " in city.It is the only way which must be passed of city human survival, activity.It is the important place of society and politics, culture, economic development, circulation of commodities.It is the most direct embodiment of city image, grade.The street is again the city stream of people, the most intensive zone of wagon flow, especially big city, and dense degree is even more serious.But on the northern China avenue, appear suddenly in recent years: road surface drying, automobile sharp increase, airborne dust and tail gas pollution is serious, the other trees lack of water in road is done the few leaf of branch does not have sunshade, stuffy, the natural ecological environment severe exacerbation in street, relate to populous, harm face and harmfulness are very huge, have become social reality problem urgent, that need to be resolved hurrily.

In the northern China city, because weather is short of rain, dry, add the heat that automobile discharged and gave out that quantity increases severely, make the surface of the street degree of drying become more serious.And along with urbanization, industrialized develop rapidly, building waste, the earthwork and the industrial refuse of the enormous amount that engineering construction produced that grand real estate, urban renewal, road widening etc. are a large amount of, house refuse are shedding in transit, many-sided a large amount of dusts that these come and the sky particle that gets off that descends slowly and lightly comes together on the surface of the street, and the aiutage of ten million automobile that quantity increases severely on the street when discharging a large amount of tail gas with wheel together with the road surface on these a large amount of dusts without reservation, repeatedly, blow afloat, got rid of, kick up; Whenever cross a car on the street, one dust of will kicking up; When a car when the road edge crosses, when bus pulls in because road edge dust is thicker, the long queue of always kicking up ash behind the car; In the face of the dense ash that blows against one's face, the pedestrian receives, stands.In northern city, the automobile on the street is just as ten million platform heat " soot blower ", " airborne dust device ", and the pedestrian on the street, bus passenger and driver are exactly ten hundreds of " dust catchers ".The north numerous residents in city taste varieties of year in year out a large amount of suctions street airborne dust and tail gas bitter, tired, evil, healthy, living environment is subjected to serious threat.The street is the cradle and the harm ground of city raised dust maximum, is the severely afflicated area of urban air pollution.

In northern city, when sweeping strong wind, a large amount of dusts, the sand and dust that have fallen on building roof panel and the road are kicked up again by strong wind again, scrape entire city ash day lacquer putty, in pedestrian's mouth, all be dust on the face, from head to foot, eye is all opened not open.During the resident goes back home, be dust everywhere in the room.Next interim when sandstorm, this kind situation is even more serious.

In decades, northern urban sanitation cleans Streets and always is dried operationization.Because dry, the road surface is dry, daily the cleaning Streets of sanitationman can only be gentlier to sweep off the floating foreign material in road surface, but the road pavement dust is difficult to remove, and exerts oneself the bigger dust of will kicking up a little.Present present situation is: it can only be to sweep half, raise half, stay half that the sanitationman cleans the road surface dust, when sweeping the floor action big more, wind-force was big more at that time, the dust amount of flying upward is just big more, the distance of waving is just far away more.These airborne dusts make pedestrian, retail shop, restaurant, the resident family of both sides, street deeply hurt.These airborne dusts make that also trees, the afforestation vegetation of both sides, street often all are that dirt is dim, the serious growth that is endangering plant and the performance of ecological functions; Also seriously destroying the image in city.The process that the sanitationman sweeps the road surface is exactly the process of airborne dust, is exactly the process with road surface dust " transposition ".And actual clearance rate is very low.

If the dust total amount on the street is set at 100 indexes, so:

1, environmental sanitation cleans actual clearance rate and is about: 30%;

2, the remaining dust rate in cleaning road surface, back is about: 20%;

The dust rate of flying upward was about when 3, environmental sanitation cleaned: 20%;

4, be about by the passing automobile rate of kicking up: 30%.

Since above 3,4 two dusts fly upward rule be kick up, fall, the repeatedly repeatability of the formula of kicking up again flies upward, should be so the dust actual rate of flying upward in street is always measured expression approximately:

(20%+30%) * 2 time=100%;

(20%+30%) * 3 time=150%;

(20%+30%) * 4 time=200%;

……

This shows that the actual dust emission in street is huge.And the power with the wind often of the fine dust in these airborne dusts, wave to the high-altitude with the air ascending air, seriously polluting the air of entire city.Current street airborne dust has become the key factor of northern urban atmospheric pollution.

According to the ophthalmologist, oculist: because northern avenue airborne dust is big, citizen's eye Jiankang, eye vision integral level are starkly lower than south and coastal cities.

Airborne dust on the avenue is different from away from the soil of raising on city, the secondary road, there is not pollutant, and the noxious material in contained various industrial chemistry harmful substances, heavy metal and the vehicle exhaust and various bacterium, various virus spread in the airborne dust of street, composition is very complicated, and content is higher, is all endangering numerous residents' physical and mental health all the time; The Surroundings in Cities in its heavy damage, and it is the carrier of various infectious diseases in city and disease maximum, is the arch-criminal of the healthy maximum of numerous residents.

If a people did not have a meal to resist firmly in one week do not come, but one minute no breathing just can't be stood.From the physiology angle: " breathing " and " clean air " is the primary need of life.And the only way which must be passed of the street numerous residents' daily life that is the city, work is the densest zone of population, but be numerous residents' contact, suck airborne dust, suck the harmful suspended particulate of industrial chemistry, suck the most serious zone of vehicle exhaust.

What need emphasis prompting especially is: studies have shown that according to relevant: " sulfur dioxide (SO in contaminated atmosphere usually ₂) coexist with multiple pollutant.When reaching sulfur dioxide (SO in the air of street in the vehicle exhaust ₂) with airborne dust, when particle is sucked simultaneously by human body, often much bigger to the harm that human body produces than their each self-applying sums.

This is SO because of airborne dust, floating dust particulate ₂Bring in respiratory tract and the alveolar, its toxicity can increase 3-4 times.When if floating dust is heavy metal particles, because catalytic action can make SO ₂Be oxidized to sulfuric acid mist, its spread effect is than independent sulfur dioxide (SO ₂) spread effect strengthen 10 times.SO ₂Also can strengthen the carcinogenesis of carcinogenic substance benzo (a) pyrene.” ^①

Above reality can prove fully with relevant theory: the mist of northern avenue airborne dust and vehicle exhaust and numerous residents' holistic health level are closely bound up, and its concentration and the various diseases incidence of disease are proportional with the hospital admission rate.

In northern city, it regularly is this huge work of moistening of the surface before each street environmental sanitation cleaning that limited sprinkling truck is difficult to shoulder every day for many years.And the sprinkling truck can only be in highway section, reply type among a small circle, the sprinkling road surface of accidental provisional, a small amount of discontinuity.Water resource waste is big, and rise have little effect, the time is short.The wet road surface of the water spray of contingency, short-term, but the road surface amount of dust does not change.Do not reach day-to-day, sequencing, automation, eliminationization at all, more can't effect a radical cure the street airborne dust.Dense ash, the muddy water that the water spray of sprinkling truck big pressure when operation swings on surface of the street makes the pedestrian be difficult to hide.And resource that the sprinkling truck self is brought and energy resource consumption, pollution emission and traffic pressure are apparent.

" naturalization, forestization " becoming the developing direction of modern city.But in the north, along with urban construction, old town are transformed and the intensive building of develop rapidly and villages within the city of grand real estate, old courtyard is in a large amount of minimizings, and trees lose a large amount of growing spaces, veteran, big tree are disappearing, and city trees area coverage reduces in big degree.And the other trees in road proportion and importance in urban afforestation have become the main body of urban afforestation in continuous lifting.

The street tail gas of getting on the car is the pollution sources of urban air environment maximum, and the other trees in road are main bodys of urban afforestation." both relations are that other trees carry out light and do the time spent, absorb the moisture in carbon dioxide in air, poisonous, pernicious gas and the soil, and synthesis of organic substance matter also discharges oxygen, and its chemical equation is:

Therefore the other trees in road are the natural consumer of street Carbon Dioxide in Air and the producer of oxygen.Play and make street Carbon Dioxide in Air and oxygen relative equilibrium stablize of crucial importance, also irreplaceable effect ^2." the other trees in road are to contend with unique jinx of avenue vehicle exhaust, the entire city of contending with carbon dioxide, greenhouse gas emission.

Moreover, " the other trees in road have catharsis to many toxic and harmfuls such as sulfur dioxide, and particularly the trees that tree crown is huge, careful are bigger to the absorption cleaning function of sulfur dioxide.Utilizing landscape tree to prevent harm poisonous, pernicious gas, is the important measures of city environmental protection ^3." the other trees in the road important function also undertaking retardance, absorption, filtration dust, purifying air, subdue noise.Have to close and studies have shown that: " the other trees in road are to wafing

The retardance of dirt, depositing dust, airborne dust, absorption, filter effect highly significant.Measure according to Beijing 92 years: in summer, the forest belt, street subtracts the dirt rate can be up to 60%---and 80% ^4." the other big tree in road is exactly a huge natural green air-conditioner, but its sunshade is covered that shade, heat absorption cool, decreasing temperature and increasing humidity, beautifying city, improve city natural ecological environment, particularly street environment.Along with the anxious fusion of global climate is warm, especially during the broiling summer, but more demonstrate its importance and nothing substituted.Forest is " lung of the earth ", and the other trees in road should be " lung in city ".It is city natural, ecological " soul ".

But the northern for many years city mankind not only do not have the other trees in " kind treatment " road, the seriously broken on the contrary other trees in road life condition and the environment at least that encircled, because it is leading that urban construction loses science a few years ago, run counter to the natural, ecological rule, it is attractive in appearance painstakingly to pursue so-called city, and the irrational mix design.Unified with old on the pavement, the good sun-dried mud brick calculon of water penetration changes now the generous ceramic tile of waterproof glaze into originally.According to being investigated, learns related city urban construction construction reference: (is example with the Xi'an), and porcelain facing square brick in pavement is laid and is adopted following structural design and construction process always for many years:

1, former ground soil layer adds the lime compacting;

2,5 centimeters thick complete fluid-tight concrete of top laying;

3, be that ratio is 6: 1 sand and a cement mixing matting layer above again;

4, lay waterproof glaze square quarry-tile topmost;

5, the pavement ramp rate is: 2-3 degree.

Next interim when the annual limited rainfall of northern area, a large amount of valuable rainwater are but along slope, pavement inflow sewer.Have only a spot of rainwater to flow into matting layer from porcelain facing floor tile break joint.But this a spot of rainwater can only remain in the matting layer, and can't penetrate concrete layer, and more impotentia arrives trees ' root.The completion back was laid several years in the pavement, and the floor tile break joint is shut by dust, phlegm stain, spot, oil stain again, made a small amount of rainwater that can flow into matting layer originally also be difficult to dirty.

In sum, above structure has brought up the complete impermeability on road surface, pavement.With lay the porcelain facing square brick before compare, the moisture content that flows into trees ' root has reduced 80% approximately.Add both sides, street towering buildings and big and tight cement paving, make the other tree root of attaining the Way absorb moisture content nowhere! And the area that urban afforestation department can water, number of times, water yield postscript it is limited, just an utterly inadequate amount.Many trees were all seldom watered once in 3-5 years.There are the other trees in many roads for so-called city is attractive in appearance tree well and pavement to be paved again, cause trees ' root not have plash, make trees can't receive rainwater, also can't accept pouring by artificial, unconscious or even conscious.More than multiple factor cause the long-term for many years serious water shortage of other trees, life condition constantly worsens, growth situation allows the people extremely worry! Heavy damage the street natural, ecological!

" water " is the important component part of plant, is the essential of plant vital activity.Photosynthesis of plants and respiration and organic hydrolysis only just can carry out under the condition that hydrone exists.Organic matter in the soil and inorganic matter only are dissolved in the water and could be absorbed by plant root.”

" when plant moisture waned, light and speed obviously descended, and blade lack of water stomatal aperture is less or close, and seriously hampered the absorption and the assimilation of carbon dioxide.The water content of phytoplasm is generally more than 80%, if the plasm dehydration is too much, will cause the destruction of plant colloid, causes the death of cell.”

" water " is the lifeline of trees.Expanding of trees cell kept, promoted to moisture, the other trees in road can riotous growth, flourishing, tree crown is roomy, the big shade of leaf is dense more needs sufficient moisture.” ^⑤

Northern in recent years city generally occurs planting trees by all means, no matter the undesired situation of growing way on street tree planting problem.Because serious water shortage all the year round, the other wood growth of newly planting trees in road is very slow, and newly repairing roads, it is shady to be difficult to; The few leaf of dried branch that big tree, veteran become, the withered death rate constantly increases; Because serious water shortage all the year round, cause other trees that trunk is arranged and do not have tree crown, have tree crown to lack leaf not have and shade, it is numerous to be difficult to the numerous leaf of branch, is difficult to bring into play real ecological, environmental protective effect.Having formed the side, road has its tree, and does not have real general layout in fact.Other most of trees are in the state of keeping survival reluctantly in the road.And this kind state is to manifest at the initial stage, and the other trees in road will continue deterioration because of serious water shortage growth situation!

Relevant studies have shown that: " trees inhale carbon puts the size of a series of ecological functions such as oxygen and depends on trees blade unit are, blade amt amount, leaf area combined index and self biomass; The tree crown volume is bigger, blade is bigger, blade quantity, level are the more closeer, and the various functions of trees are just strong more ^6." and restrict, determine that everything key factor of trees is " water ".Sharp increase, tail gas pollution, airborne dust are serious, the serious real situation of sunshade difference in the face of avenue is got on the car, other because serious water shortage, the growth all the year round in street be little tree and to do the few leaf of branch, withered dead big tree can't tree crown huge, flourishing very slowly, impotentia is street Cheng Yin, their due multiple ecological functions of impotentia performance.More impotentia load has been kept off this key player of natural consumer of street Carbon Dioxide in Air and various poisonous, pernicious gas.City, north natural ecological environment is at continuous severe exacerbation!

Because the boreal climate dry and rainless, the dust over time of institute's " delay " does not have rain and washes away on the other trees blade face, road, city, can only be that " delay " blown off by wind at any time at any time.So this function of trees " retain dust " does not have environment protection significance in northern city.

Current China the north, numerous cities, the northwestward are subjected to severe contamination, the harm of sandstorm, dust on the roads, vehicle exhaust, the harmful suspended particulate of industry for a long time.Claim according to World Health Organization: just have 6 in the most serious 10 cities of current global pollution in the China north.Foreign in recent years reviewer incites somebody to action: " stirring up a cloud of dust on the road " " dirty city " is as the speech of representing in northern city.It is very severe that north urban ecological environment worsens situation!

For a long time, the serious always daily life of perplexing, endangering numerous residents of northern avenue airborne dust and vehicle exhaust and healthy.Seriously hinder, restrict, destroying economic development and the city image and even the national overall image in city.It is the basic of northern urban ecological environment, health improvement, is the most important thing.To its radical cure is exactly that maximum people-oriented, is exactly maximum ecological protection.And along with the develop rapidly of the advancing by leaps and bounds of urbanization, industrialization construction, urban economy, grand real estate, the constantly rapid increase of automobile quantity, vehicle exhaust, street airborne dust also can increase thereupon, and the street is stuffy, ecological environment is continuing severe exacerbation.

So thoroughly effect a radical cure the avenue airborne dust and reduce the vehicle exhaust problem extremely urgent, very urgent.An avenue airborne dust can not effect a radical cure, and this city is ill city forever.Epoch are advancing, and the mankind will improve.In the urban economy fast development, should suit measures to local conditions, fundamentally thoroughly change the present situation that northern city PE health care infrastructure lags behind.

In the face of northern sandstorm regulation effect is very unsatisfactory, the inevitable property that sandstorm forms naturally, dust and sand weather is difficult in the reality that foreseeable future disappears.Warm in the face of the anxious fusion of global climate in recent years, city automobile quantity increases severely, and greenhouse gas emission strengthens thereupon.Appear suddenly in recent years in the face of northern avenue: road surface drying, tail gas increase severely, airborne dust is serious, stuffy, the trees lack of water is shaded poor, natural ecological environment severe exacerbation.The north mankind can not with its nature, let alone harm.Should give full play to human intelligence and wisdom, study corresponding countermeasure, find the best point of penetration that accords with national conditions, market condition, puts things right once and for all.Change old, science, irrational operation preparation, protective plant establishes that harmony between man and nature is reciprocal, the ecological, environmental protective theory of coexistence and co-prosperity.Open up all condition that may utilize and spaces, capture main ecological niche.People-oriented, control, repair the present situation of the deterioration of the ecological environment, thereby create best living environment.

Summary of the invention:

Short of rain, dry at northern urban climate, appear suddenly in recent years on the street: road surface drying, automobile increase severely, airborne dust is big, tail gas pollution is serious, the other trees serious water shortage in road, do the few leaf of branch and do not have sunshade, stuffy, the natural ecological environment severe exacerbation in street.The present invention is provided with, allocates, changes the position of water and the growth conditions of plant in space multistory orientation, street, implement retaining, water spray in the stream of people, intensive high-altitude, street, hollow, the low latitude of wagon flow.Make full use of the residing best vantage point of water and the self-characteristic and the characteristics of motion, give full play to the ecological functions of utilizing plant the best, on each street, city, make up, be woven into grand, multi-faceted stereo ecological environmental protection net all linked with one another.Create the street cleaning wet trade condition of day-to-day, automation, sequencing, removingization.Aerial floating dust is blocked in advance, adsorbs, filters, tackles, make the dust that falls to repeat to fly upward; Vehicle exhaust is in time subdued, made it reduce diffusion, purify the street air and increase its oxygen content; Reduce city effect of dry island, tropical island effect and greenhouse gas emission; Strengthen the street sun face, reduce the harm of strong sunlight ultraviolet ray human body; Check other trees and do a few leaf, withered dead situation because of serious water shortage; Improve, repair the present situation that northern avenue natural ecological environment worsens.The people makes moistening city microclimate environment.For northern city dweller's go off daily provides clean moistening air and nice and cool, comfortable environment.Improve resident's holistic health level, reduce disease incidence.

It is as follows to invent concrete scheme:

" the high, medium and low empty three-dimensional defense line of avenue, the ecotype are blocked dirt, carbocyclic ring insurance system engineering disappears " that constitutes by three engineerings.Argumentation to this system engineering divides following five parts:

(1) high-altitude: the other high roof platform retaining in road, water spray engineering

(2) hollow: street elevated automation water spray engineering

(3) low latitude: pavement environmental protection gallery and low level water storage project

(4) water consumption problem and Cai Shui, water distribution scheme

(5) allomeric function characteristic and macro effect

(1) the other high roof platform retaining in road, water spray engineering

In the city, high-lager building is intensive, stand in great numbers.These top of building are platform-type, and the gross area is incomparably grand.Fully can, be necessary fully that also with these always be the high roof platform space development utilization of leaving unused, be the urban environmental protection cause and play a significant role.Concrete scheme is: suit measures to local conditions, give full play to and utilize high constructure, the particularly ceiling advantage of the high constructure of both sides, street, increase by two facilities on its top platform:

1, roof panel storing facilities of water.

2, roof panel water spray facility.

Description of drawings

Fig. 1 is other high roof platform retaining, water spray engineering schematic diagram, and expression has following construction and device among the figure: 1. the other high roof platform in road; 2.PC force-bearing plate; 3. cistern; 4. the waterpipe of setting up; 5. the water filling degree of depth; 6. water level meter; 7. control system; 8-1,8-2,8-3. magnetic valve; 9-1,9-2, check valve; 10-1. water source from the beginning; 11 overfalls; 12. rainwater recovery channel; 13. rainwater recovery pond (storehouse); 14-1. water pump; 15. bottom plug; 16. downcomer; 17. Limber; 18. fountain head; L1 fountain head spacing; 19 top layer pump houses; 20-1. force (forcing) pump.

The specific embodiment

1, roof panel storing facilities of water: shown in Figure 1,1 entire area laying depth is 5 millimeters a PC force-bearing plate 2 on the other high roof platform in street, become 90 ° of degree to bend up all around to be fixed on the platform periphery guardrail body of wall, bend up highly and be: 400 millimeters, seam is welded and is made the cistern 3 that can hold water.In light weight, shock-resistant, corrosion-resistant, fire-retardant, the uvioresistant of this PC force-bearing plate has stronger weatherability and resistance to ag(e)ing, and service life can be for 30 years.After laying of PC force-bearing plate and the seam welding completion, by the running water 5 of a waterpipe 4 that increases, is provided with injection 100 mm depths in the cistern that the PC force-bearing plate is laid, this water surface is the permanent water surface.Water level meter 6 is installed in water, when water surface natural evaporation, when water level drops to 50 millimeters, water level meter control system to hint 7, magnetic valve 8-1,8-2 in the control system instruction water lines open automatically, hydraulic pressure among the tap water pipe line 10-1 is washed check valve 9-1 open and is rushed to and hug roof panel and carry out automatic water supplement, and moisturizing work stops automatically when water level reaches 100 millimeters.

When natural precipitation, when water level surpassed 200 millimeters, rainwater can flow down along overfall 11, by rainwater recovery channel 12 enter the rainwater recovery pond built on ground both the outside the city rainwater reclaim storehouse 13.When ground recovery pond both outside the city rainwater storage reservoir water yield abundance, when the roof retaining need replenish, control system instruction water pump 14-1 and magnetic valve 8-2 opened, and rainwater that hold on ground is washed check valve 9-2 open and rushed to roof platform enforcement moisturizing, saves a large amount of running water thus.Thereby reach the direct recovery to rainwater, the ecological high standard of directly utilizing, holding for unnecessary time.

So far on the city high rise building roof panel, particularly increased the nonvolatil water surface of piece on the high roof platform of both sides, street.Retaining face on these no several piece high building roof panels spreads all over entire city, the city eminence formed dispersion but the very grand permanent water surface of the gross area, just as the artificial lake in high-altitude.This water surface be formed on the city eminence shouldered connect dirt, dust suction, receive dirt, block the important environmental-protection function of dirt; It is prepared for any eventuality in the city eminence, all the time the harmful suspended particulate substance of height aerial a large amount of floating dust, depositing dust, airborne dust and industrial chemistry is accepted in advance, receives, is tackled; Next interim when sandstorm, this grand water surface can be collected sand and dust a large amount of in the dust storm, in the air, dust, be received in the water, and its termination is flown upward.Thereby big degree ground has reduced the harm of sandstorm, has improved the air quality in city.This water surface has also fundamentally solved when blowing hard, the repeated contamination problem that a large amount of sand and dust that fallen on the high roof platform, dust are swept again, kick up again.The daily evaporation of this grand water surface has increased valuable humidity for dry northern urban air again.Also increase simultaneously the vapor content of the overhead cloud layer in city, thereby improved the probability of natural precipitation and the success rate of rain making.Improved northern city natural, ecological overall situation artificially.The enforcement of this engineering also makes the top room heat-insulating property strengthen, and is cool in summer and warm in winter.

Periodic cleaning, scrub cistern bottom mud, open bottom plug 15, sewage is through downcomer 16 inflow surface Limbers 17 upstairs.

2, top platform water spray facility: shown in Figure 1, in order to improve urban air-quality, reduce the harm of sandstorm.At high roof platform, particularly be located in to protect around the high roof platform of both sides, street to block and spacing is set on the wall is: 2 meters L1, range is: 20 meters-30 meters-50 meters big pressure, long-range rotation fountain head 18.When the air quality difference, when sandstorm comes interim, start control system, opens solenoid valve 8-1 and 8-3, hydraulic pressure in the water source is washed check valve 9-1 open from the beginning, rise to roof layer pump house 19 after, pass through force (forcing) pump 20-1 again, rushed on the roof platform by the water under high pressure after the secondary pressurization, protect the numerous fountain head 18 that blocks wall water under high pressure is sprayed through being arranged on platform.

When the air quality difference, when sand and dust come interim, when water in the outside the city rainwater returns storage reservoir water yield abundance, control system instruction water pump 14-1, magnetic valve 8-3, force (forcing) pump 20-1 opens simultaneously, and the water in initial detention storehouse is washed check valve 9-2 open, and the water under high pressure that pressurizes through force (forcing) pump rushes on the roof platform, through be arranged on numerous fountain head 18 on the platform at high empty position, overheadly in the street implement successively, big pressure, remote, intensive rotation staggered form water spray, general just as rainfall.The minimizing of big degree the severe contamination of sandstorm to urban air.Make full use of the characteristic of water, fall from the high-altitude in ground this process, this bigger journey that falls of the water that makes full use of these high position ejections finished following multinomial environment-friendly function:

(1) purify to clean, filtered air, increase air humidity, with aerial a large amount of sand and dust, dust humidifyings, make it to mix and be the muddy water ground of falling.Most of sand and dust, dust are tackled in the high-altitude.Height, density, range that its interception sand and dust, amount of dust and shower nozzle are provided with are proportional;

(2) these water sprays that fall that keep have washed away sand and dust, the dust that drops on trunk, the blade face again simultaneously; And adrip trunk, blade face have improved the ability that repeats to block absorption sand and dust, dust once more greatly;

(3) after the water that is sprayed lands again large tracts of land, fully humidifying ground, road surface, and these by humidifying ground, road surface sand and dust, dust humidifying, absorption, the admittance that will constantly descend slowly and lightly and, make it can not repeat to fly upward;

(4) continuous water spray can directly pour ground, a large amount of sand and dust, the dusts in road surface in the sewer sedimentation basin;

(5) water spray that lands has watered other trees in road and afforestation vegetation again fully.Fundamentally thoroughly solved the problem of the other trees serious water shortage in road.

When sandstorm comes interim, when air quality is relatively poor, roof water spray program is opened in the control system instruction, and utilize ground rainwater to return to hold pond, the large-scale rainwater of outside the city, middle water to return retaining sufficient in the storage reservoir and implement the operation of spraying water, and the water of these ejections passes back into rainwater reclaim line system after landing, again turn back in the large-scale rainwater of outside the city, the middle water recovery reservoir, these water are repeatedly circular form repeated use after precipitation process.The complete circulating scheme of utilizing limited water source of this cover is implemented this system engineering for the northern city of lack of water and has been created maximum feasibility.

When sandstorm come interim, sand and dust, the dust that the retaining that the high roof platform in certain building is implemented, water spray will directly reduce this each room of high building rate of entering the room.Between the high building mutually, relatively high pressure, water spray, as rainfall, formed humidifying to body of wall and window outside the bed rearrangement building, these adrip outer bodies of wall have played well again that large tracts of land is adhered to, the huge effect of absorption, static sand and dust, dust.And adrip window is entered the room and has been played good sealing function obstruction sand and dust, dust.

The PC force-bearing plate cistern that high roof platform is laid is if cracking, and the water of seepage is very fast to be flowed down along the original dirty pipeline of rainwater that is provided with on the building roof platform, can not cause immersion, seepage to roof platform.

Winter, reduce to 0 ° when spending Celsius when temperature, can in the roof platform cistern, add the environment-friendly type antifreeze agent, or temporarily cancel retaining.

Be not suitable for implementing the other high building in street of retaining for the roof structure, can cancel impounding scheme, separately, simply implement the setting of other high roof water spraying structure.

Geography, weather, water resource, environmental pollution degree and economic development situation according to the city, in city with good conditionsi, the entire city scope beyond the street can be promoted, is extended to the other high roof platform retaining in street, this facility of spraying water, this environmental protection form fully.Repair, improve, regulate and control urban ecological environment with this, and taking this as an opportunity, and pulling entire city environmental protection cause is gone on eucyclic track.

(1) street elevated automation water spray engineering

Comprise: 1, the access at overhead part .2, water source and control section .3, functional characteristic .4, street lamp part.

Description of drawings Fig. 2 is a street elevated automation water spray engineering schematic diagram, and expression has following construction and device among the figure: 21. pavements; L2 column spacing; 22 head trees; H1. head tree height; 23. column base; 24. overhead water pipe; 18. fountain head; 25. secondary column; The secondary column height of H2; H3. column height overall; L3, L4, L5. sparge pipe upper pulling force dot spacing; H4, H5, the secondary column upper pulling force of H6. dot spacing; 26. pulling force steel strand wires; L1. fountain head spacing; 27. monitoring camera; 28. computerized control system; 29. column ceiling light; 30. water main road, street; 31. fire hydrant branch pipe(tube); 8-4,8-5,8-6,8-7. magnetic valve; 20-2. force (forcing) pump; 9-3. check valve; 32. street lamp.

Fig. 3 is an attached frame sparge pipe schematic diagram on the existing lamppost in street, among the figure there is expression: 33. existing street lamp columns; 34. support post.

Fig. 4 is street elevated automation water spray engineering outdoor scene and design sketch.

1, overhead part:

(1) this project is on the intensive pavement, street 21 of the city stream of people, wagon flow or the suitable street that is provided with on the car band of speed, the overhead automatic water jetting facility of long distance.At first the other trees in road on line with spacing, span be: 16 meters is standard L2, construction is dug and is built the degree of depth and be: 1.5 meters, size is: 1 meter * 1 meter positive square foundation pit position, and pre-buried 4 diameters are: 20 millimeters foundation bolt, build up concrete column ground pedestal with this.

(2) adopt DN:6 cun, 165 millimeters of external diameter: φ, wall thickness: 4.5 millimeters hot dip galvanizing pipe is made head tree material 22.Length (highly) is 8 meters H1, at one end become thickness of 90 ° of degree welding to be: 20 millimeters, size is 400 millimeters * 400 millimeters a square shaped steel plate, it is the via hole of 22 millimeters of φ that steel plate four angular bits have diameter, with this base 23 as column, this head tree uprightly is installed on the concrete pedestal, and mother is fastening with a chain for binding criminals.

(3) adopt DN:3 cun, 88.5 millimeters of external diameter φ, the outer hot dip that wall thickness is 4 millimeters, interior lining plastic composited pipe are made overhead water pipe 24.With the flat frame of this water pipe in highly being: 8 meters H1, span is: the fixing welding in each head tree top of 16 meters L2.

(4) for expanding with heat and contract with cold of preventing that the water pipe four seasons temperature difference causes, the pipeline distortion is installed an expansion joint in the water pipe centre position of 16 meters spans.

(5) in order to eliminate the sag bent problem that 16 meters span middle parts of overhead water pipe occur, the spy makes following structural design:

A. the auxiliary connection column makes progress on the head tree top: with the head tree central axis is benchmark, on the top of 8 meters columns, with 114 millimeters of DN:4 cun, external diameter φ, 4 millimeters of wall thickness, the hot dip galvanizing pipe of 6 meters H2 of length as secondary column 25, is fixed, welds, is prolonged and stretch to eminence.So far the column height overall is 14 meters H3.

B. on overhead water pipe, be that starting point is taken measurements and is respectively from secondary column Wai Yuan edge: 3.5 meters L3,4.8 meters L4,6 meters L5, but locate to weld respectively fixing point, installation adjustment part at these 3.

C. being that overhead water pipe becomes on 90 ° of corresponding secondary columns of degree to hoist from low starting point takes measurements, and is respectively: 3.5 meters H4, and 4.8 meters H5,6 meters H6 weld fixing point respectively on these 3.Adopt 7 strands of steel strand wires 26 of hot dip mild steel of 6 millimeters of diameter phi to do backguy, degree angle of pull at 45 is connected between overhead par pipeline and the secondary column.With above three groups draw a little connect respectively, adjustment, fastening.Every secondary column both sides are corresponding two drawing.Thereby make overhead water pipe straight not curved, make that also this overhead water spray facility has possessed globality, stability, firm durability and aesthetic property.

(6) on overhead water pipe, be standard, be provided with numerous rotatable fountain head 18 is installed that fountain head water spray radius is: 10 meters-20 meters-30 meters, select according to street width with 2 meters spacing L1.

(7) be spacing with 0.5 kilometer, at height overall be: 1 monitoring camera 27 is installed at 14 meters column top, and is connected in computerized control system 28.

(8) for the elegance of this overhead water spraying structure integral body on the street, attractive in appearance,, an ellipse milky ceiling light 29 is installed on the column top of 14 meters of height overalls.Whole overhead water spraying structure appearance also is milky.

(9) in some city, the zone straightforward procedure that also can take to increase by 2 support posts in 16 meters span middle parts of overhead water pipe eliminates overhead water pipe middle part sag bent problem.Thereby cancel secondary column and pulling force steel strand wires.

(10) also can be that 8 meters overhead water pipeline changes 10 meters into former design height in some street.

(11) shown in Figure 3, under firm, the feasible condition of the existing high pole street lamp column pedestal in street and material, can be with overhead water pipeline reworked attached frame top between the column 33 of these existing street lamps, and between 32 meters spans, increase by four 8 meters high firm support posts 34, this scheme can be saved the fund input of enormous amount, degree has reduced the cost cost of this project greatly, has high real feasibility and necessity.

2. the access at water source and control section

(1) per 3 kilometers excavations are built a groundwater supply system groove on the pavement in main level street, city, and build water supply, compression system pump house, and the computer control cabinet.In water main road, street 30, on the fire hydrant branch pipe(tube) 31, or on urban rainwater, middle water dedicated water source capsule line, insert the water source.

(2) the water spray program of setting, sort different according to the concrete condition in each street, with this program input computerized control system, regularly start computerized control system every day, and, handle back electromagnetic valve of instruction 8-4,8-5 and force (forcing) pump 20-2 unlatching automatically simultaneously through computer control cabinet and master control room according to live information of each surface of the street burst airborne dust that the monitoring camera 27 that is installed in overhead water spray facility top provides.The water source enters pipeline after the water under high pressure after the pressurization is through at water lines in head tree 22 endoporus through cover rises and to enter overhead water pipe 24 after 8 meters, through being arranged on the numerous fountain head 18 on the water pipe, water under high pressure is sprayed again.The rotary intersection water spray of each fountain head is general just as rainfall.By the time that sets, magnetic valve and force (forcing) pump are closed simultaneously, and this water spray program finishes automatically.

(3) attractive in appearance for the avenue environment, the waterpipe of this overhead water spray facility is designed to exempt the scheme of anti-freezing and heat-insulating packing: when winter temperature when zero centigrade is following, the water temperature in the underground water source trunk line is 13 degree Celsius.After the EP (end of program) of above-mentioned conventional water spray, computerized control system immediate instruction magnetic valve 8-6,8-7 and force (forcing) pump 20-2 open simultaneously, the water that does not spray in the overhead like this water lines is sucked back subsurface very soon, and these water that exceed water pipeline pressure are washed check valve 9-3 open and turned back to the water source trunk line.So just avoided freezing of overhead water pipeline in winter.

3, function and characteristic:

The overhead water spray in street from 8 meters eminences be ejected into this process of ground of falling, this journey that falls finished below very various environment-friendly function:

(1) interception, cleaning, filtration, humidifying airborne dirt, airborne dust, sand and dust and the suspended particulate substance of floating of street eminence.It is mixed to the muddy water ground of falling, purified the street air.

(2) increased valuable humidity for dry northern avenue air.Brought into play the water self characteristics again fully: absorbing and cooling temperature.

(3) the keep water spray that falls has cleaned, has washed away the dust that is detained on the other trunk in road, the blade face.Fundamentally having solved other trees " retain dust " function in road, northern city does not have the problem of environmental protection meaning.

(4) often washed away the performance that clean and moist trunk, blade face help trees self growth and multiple ecological functions, aerial floating dust is adsorbed in the retardance that more helps constantly repeating.

(5) wash away worm's ovum on trunk, the blade face, reduced the trees disease and pest.

(6) watered the other trees in road fully, contained that the other trees in road are because of the withered in a large number dead situation of lack of water.The enforcement of the overhead water spray in street can make northern city under the situation of the complete waterproof present situation in road surface, pavement, but can fundamentally solve this significant problem that causes street and even entire city natural ecological environment to worsen of other trees serious water shortage.Equal also simultaneously to have solved that northern urban human trade roadbed is firm, evenness of road surface is attractive in appearance and the other trees in road must have contradiction between the moisture of abundance.Sufficient moisture make the other trees of attaining the Way grow vigorously, flourishing, tree crown is bulky, the blade level is many, quantity is many, trees leaf area combined index, biomass become tens of times raising, huge and bright and beautiful close tree crown joins together, and whole street has been formed large-area covering.This green cover-up surface has formed the upper and lower dual intercepting net to the overhead airborne dust in street, sand and dust, suspended particulate substance and pavement automobile exhaust.Make the other trees of attaining the Way give full play to its multiple powerful natural, ecological function: in time, closely, a large amount of vehicle exhausts, the carbon dioxide of absorbing in high concentration ground, discharge oxygen, reduce greenhouse gas emission, poisonous, the pernicious gas of suction strainer.Trees have been shouldered the natural consumer of carbon dioxide and this important role of producer of oxygen veritably on the street.Simultaneously this green cover-up surface again airborne dust, the sand and dust of retardance absorption in large area, subdue that noise, sunshade cover, heat absorption cools, decreasing temperature and increasing humidity, purify air, the beautifying city, improve the city microclimate environment.During the broiling summer, the bulky tree crown of the other trees in road not only provides comfortable outside environment to the pedestrian to comprehensive sunshade in whole street, nice and cool go out car and outside environment is provided also for simultaneously the driver of various vehicles and vast bus passenger.

(7) after overhead water spray lands again in large area humidifying the road surface, suppressed flying upward of road surface dust.These by humidifying the road surface prepare for any eventuality that dust, sand and dust, the suspended particulate that gets off adheres to constantly descending slowly and lightly in the air, absorption, humidifying, delay, make it can not repeat to fly upward.Coincidence be: these moist road surfaces are subjected to tree crown sunshade dense on street protection again, thereby big degree ground has prolonged the moist phase on road surface.

(8) computer program control, the timing automatic water spray in each street, the humidifying road surface, after water spray stopped, the sanitationman cleaned the road surface in good time, under the state that does not fly upward, most of dust is disposed.Thereby having changed northern urban sanitation cleans Streets and does the history of operation.

(9) proper extension water spraying time, just floating dust that can the road surface is a large amount of directly pours sewer, and long-time in the morning big yield water spray the time, and the rainproof dressing of the sanitationman cleaning road surface of setting out on a journey just can reach the optimum efficiency of thoroughly scrubbing the road surface.

More than various function made, be woven into grand, all linked with one another, a natural green ecological environmental protection net in the space, street, stop, adsorb, contain, removed the street airborne dust.Aerial airborne dust is tackled in advance, made to fall airborne dust and can not repeat to fly upward.Thereby reached that car can not crossed ash, the optimum efficiency of the ash of can not sweeping the floor, the ash of can not blowing.

4, street lamp part

Because the set position of the column of the overhead water spray facility in street, highly, contingency, the uniformity of span and existing street high pole street lamp, water spray facility column design is very firm again with material and ground, have ready conditions fully, be necessary street lamp 32 is installed with on the column of water spray facility, column one post of overhead water spray facility is used more.The high pole street lamp that this layout designs will be eliminated and be cost an arm and a leg, purposes is single is the fund of urban municipal construction saving enormous amount.Also reduced the cost cost of overhead water spray facility in fact in a large number.Simultaneously because the overall aesthetics that overhead water spray facility and street lamp unite two into one, for having increased beautiful and graceful scenery on the avenue one.

The specific embodiment

1 humidifying type water spray:

About 5 o'clock every afternoons, half an hour before the stream of people, wagon flow peak period, implement the once of short duration overhead water spray in street, clean, filter, improve the street air, increase air humidity, the humidifying road surface, make car can not cross ash, for the peak period stream of people provides clean air.

At candlelight, starts overhead water spray once more, the humidifying road surface, and after water spray stopped, the cleaning road surface that the sanitationman is in good time high efficiencyly under the state that does not fly upward was disposed most of dust.From then on changing northern city cleans Streets and does the history of operation.

2 wash away the type water spray:

In the morning about 5 o'clock with the overhead water spray of big yield, long-time section, wash away the road surface, water spray face slope current by the way directly pours a large amount of floating dust in the sedimentation basin of street Xia Shui, return pipe in the time of both sides.The other trees in road have thoroughly been watered simultaneously again.

Spray is scrubbed type synchronously and is sprayed water with sweeping down on 3:

According to the street in the present position, city, the stream of people, vehicle flowrate, can take the program of spraying water and sweeping the floor and carrying out synchronously at the bigger street of road surface dust, both in the morning about 5 o'clock when long-time, big yield wash away the type water spray the rainproof dressing of the sanitationman cleaning road surface of setting out on a journey.Thereby constituted the operation general layout that goes up water spray, scrubs down of road pavement.The best effort program and the effect on thorough cleaning road surface have been reached.It is neat and tidy that this program can be cleaned the road surface dust, can reach the optimum efficiency of having a bath to the street.

More than the big yield water spray of 2 and 3 types, finish set effect in, as descending rainfall on the street early morning every day, thoroughly humidifying the road surface.These by thorough humidifying the road surface, can keep the long period moist, highly effective absorption, delay, inhibition is multi-faceted to descend slowly and lightly and not to repeat to fly upward after the dust that gets off lands.The other trees in road have been watered simultaneously again fully.

4 monitoring types water spray:

The overhead camera monitoring in street, computer control is at the airborne dust startup water spray of certain sudden appearance in highway section.In time suppress airborne dust, and can directly a large amount of road surfaces floating dust be poured down water or water return pipeline, the while again humidifying the road surface.

5 emergency types water spray:

When sandstorm, when blowing hard, when air quality is relatively poor, in time start overhead water spray, improve the street air quality, reduce the harm of sand and dust, airborne dust to the pedestrian.Other trunk blade face, the road that is squirted has greatly strengthened the function of absorption retardance dust.And the road surface that squirts makes the sand and dust, the dust that descend slowly and lightly in a large number can not repeat to fly upward.

6 coolings, humidification type water spray:

Give full play to, utilize that water self absorbs heat, cools, the characteristic of humidification,, carry out overhead water spray at noon in good time, reduce temperature on the street, reduce the road surface degree of drying, increase the street air humidity at summer high temperature, dry weather.This kind of water spray mode has played again when reaching cooling, humidification effect with the effect that equals to wash away the type water spray: wash away the road surface floating dust, the other trees in pouring road, humidifying road surface are adsorbed, are suppressed dust and fly upward, and achieve many things at one stroke.

7 cleaning ponding:

After above each water spray program was finished, the environmental sanitation sweeper must be in time sweeps sewer with the ponding on edge, roadside, driveway both sides.Utilize fully, coincidently these owing to the roadside, street along the ponding that non-horizontal surface and irregularity degree form played important role because these ponding just in time clean road edge dust stratification to the sanitationman.The sanitationman cleans the roadside and goes into the process of sewer, the process of cleaning the curb dust stratification exactly along ponding.This operation can sweep a large amount of roadsides in the sewer sedimentation basin along dust stratification.Fundamentally solved the roadside along the many big problems of dust stratification.

But implement in each street for 8 early mornings washes away type and scrubs the operation of type water spray and carry out every day, also can carry out every other day.

9 preparations rationally:

According to the actual conditions in each street, the program and the time of above various water spray is rationally arranged, adjusts, controlled to the utilization computer.Thereby make each street reach substantially: car is crossed ashless the raising in road surface has ash with the road surface but effect that wet condition can not raised.

10 special agent water spray:

Give full play to the advantage in geography and the functionality advantage that utilize the overhead water spray facility in street, come to spray at automation at the night medicament water of the other greening in road, the trees prevention and control of plant diseases, pest control.And regional, emphasis highway section at various sudden infectious diseases as: the health and epidemic prevention of SARS, the bird flu medicament water sprinkling work of meeting an urgent need.

In 11 winters, when temperature drops to zubzero temperature, rely on dark reason to implement overhead water spray operation as usual at the water source that ground water temperature remains on about 13 degree Celsius.But, can take following measure for fear of icy on road:

(1) early morning is gone up spray in cancellation, sweeps the synchronized model water spray down and washes away the type water spray.

(2) shorten the time that the humidifying type is sprayed water, wetting and do not flow, wet and do not freeze with the road surface is standard.

(3) shortening the humidifying water spraying time, when increasing humidifying water spray number of times, cooperating increases the wet trade cleaning of road pavement dust in time of water spray back.

(4) in the water spray water source, add the environment-friendly type antifreeze agent, do not freeze after water spray is landed.

(5) fountain head is replaced by atomizing type.

In the winter time, the bigger heat that vehicle flowrate discharged, distributes on the street makes the local temperature of surface of the street obviously exceed the weather temperature, adds the underground water source temperature of 13 degree Celsius, and implement street overhead water spray in northern city winter, and the humidifying road surface is feasible.

Comprehensively described, street elevated automation water spray facility is simulated in natural precipitation, and its performance is higher than natural precipitation.But it thoroughly breaks away from the restriction of natural climate condition with the advantage of artificial property maneuverability auto-programming voltinism, every day, when per, per quarter all can the overhead water spray operation of implementing various ways in the street indiscriminately ad. as one wishes.Thereby radical cure street airborne dust improves street and even entire city natural ecological environment.It is to tradition and the once unprecedented change of backward avenue facility.

(3) pavement environmental protection gallery and low level water storage project

The overhead water spray facility in street is sprayed water in whole street from 8 meters eminences, comprising: driveway, pavement.And the problem of very fast appearance is the water spray problem that numerous pedestrians hide the street eminence on the pavement.This spy is made following supporting design:

Description of drawings

Fig. 5, Fig. 6 are pavement environmental protection gallery and low level water storage project schematic diagram, (front view and side view).Expression has following construction and device among the figure: 22. head trees; L2. column spacing; 35. support short column; L6. support short column spacing; 21. pavement; α ¹. gallery main frame angle; H7. gallery height; L7 gallery width; 36. galvanized pipe 37. zinc-plated square tubes; 2.PC force-bearing plate; 38. arc is curved greatly; 39. arc is little curved; α ². gallery end face and horizontal plane angle; 8-8, magnetic valve; 40. gallery end face least significant end.

Fig. 7 is pavement environmental protection gallery and low level water storage project outdoor scene and design sketch.

The specific embodiment

Fig. 5, Fig. 6, shown in Figure 7: head tree 22 bottoms of using overhead water spray facility are divided into support, are the strong point, and be parasang with 16 meters span L 2 of head tree 22, be spacing with 5.33 meters L6 between this span, the short column 35 that increases by 2 2.6 meters height is as strengthening the strong points. and on pavement 21, build in head tree and weak point column and become 93 to spend angle α ¹Stretch to 2.5 meters high H7 in the road outside, wide 2.7 meters L7 are the pavement gallery top frame of combination with hot dip galvanizing pipe 36 and galvanizing square tube 37.Selecting thickness is that 4 millimeters PC force-bearing plate 2 is gallery top panel material, is laid on this framework, erects nonvolatil, as to accompany pavement, a long distance domatic end face corridor; This gallery is the conveyance system of overhead water spray facility, and the circuit of walking, length are same as overhead water spray facility.

What should point out especially is: but this Analysis of Nested Design scheme is designed to the gallery end face to have the function of retaining.Concrete structure be will be laid on the PC force-bearing plate 2 of gallery end face upwards to bend up the arc of 130 millimeters long near the edge of column one end minimum points curved greatly 38, and that the other end upwards bends up 50 millimeters arc is little by curved 39.Because this gallery top panel transverse ends edge all upwards bends up, and the suitable length laying of force-bearing plate top materials, thereby the retaining type gallery end face that can hold water formed.When overhead water spray operation, a large amount of water droplets is stored on this end face, makes this gallery end face often keep a water surface.

Shown in Figure 6: as, to become 3 degree ramp type α in horizontal plane near column along being standard on the gallery on pavement with 10 meters of spacings ²Gallery end face least significant end, be provided with a small-sized magnetic valve 8-8 be installed.Before 5 o'clock early mornings of every day, control system is controlled this opening of valves, and the water that the gallery top is held is along 3 degree slope α ²Flow down very soon.When implementing spray early morning during operation, the water that eminence falls with gallery end face dust, sediment wash away neat and tidy, close automatically by the setting-up time magnetic valve, the gallery end face begins refilling.

Shown in Figure 6, the gallery of close column pushes up an end edge height and is lower than other end edge, and from then on 40 places flow down when gallery end face retaining overflow.

For the acclive highway section of street landform, in order to keep the level position of gallery end face, can take segmentation, the method for stepped ramp type is provided with gallery, also the gallery top surface structure can be changed to plain edition in part city, zone, the top retaining of cancellation gallery.

According to street present position, width of roadway, flow of the people in the city, layout is set can takes following several pattern of overhead water spray and environmental protection gallery:

The bilateral overhead water spray in A street, bilateral environmental protection gallery;

The bilateral overhead water spray in B street, monolateral environmental protection gallery;

The monolateral overhead water spray in C street, monolateral environmental protection gallery.

Shown in Figure 7, environmental protection gallery in pavement not only has for the pedestrian provides the effect of hiding overhead water spray, and possesses the ecological, environmental protective function of following multiple uniqueness again:

(1) keep away water function: preceding 5 minutes of the overhead water spray in street, music tip is all arranged on the street, at this moment the pedestrian enters walking or stop as usual under the gallery, just can hide the eminence water spray easily.

(2) because this gallery end face is designed to the retaining type, the permanent type water surface of this long distance of gallery end face has played the environment-friendly function that connects dirt, dust suction efficiently, receives dirt on the street.This water surface is in-plant again to be the air humidification of northern avenue drying, cooling.

(3) it solved current newly-built, the enlarging road is many, both sides, the street wood of newly planting trees is difficult to have the realistic problem of sunshade the several years.

(4) in the north, the winter-spring season trees do not have Ye Shaoye nearly half a year, do not have sunshade on the pavement, and during the unable performance of trees retardances dust function, the environmental protection gallery has played absolute compensating action.

(5) warm, the heating of the anxious fusion of global climate in recent years, and the other trees lack of water in road, growth conditions is poor, sunshade is poor, no sunshade, especially in summer, when burning sun high according to the time, more demonstrate the necessity and the superiority of this gallery of enforcement.

(6) this gallery has changed city dweller's go off daily on the pavement, can only lean on the history of tree shade sunshade.No matter spring, summer, autumn, winter, burning sun Gao Zhao, or blowing and raining, snow, the environmental protection gallery is with the length along the big distance in street, and tight sun face provides nice and cool, clean, comfortable, superior outside environment for numerous residents.

(7) anti-strong sunlight ultraviolet radiation harm: in summer, the ultraviolet ray in the sunlight can make human body bring out multiple disease, even canceration.This is more and more paid attention in recent years widely.Media and communications often reminds the resident to reduce outdoor activities under the burning sun as far as possible, and trip will have the sun-shading protective measure.And environmental protection gallery in pavement is with the superior sunshade function of its long distance, fundamentally solved the resident and go on a journey summer be subjected to the problem of the ultraviolet direct projection of strong sunlight on the pavement.

(4) water consumption problem and adopt water water distribution scheme

Native system engineering water consumption is very huge.But because the water that consume is used in the key area in city, solution be the most serious problem of city PE pollution, benefited surface extensively almost reach the degree that benefits the city city.And the science of this engineering water use model, reasonable, ingenious property, reached sequencing, circular form multi-purpose water, the high ecological criteria of achieving many things at one stroke.Be very grand and extensive ecological benefits, social benefit and the economic benefit of implementing that the back brought.Moreover, also corresponding thus bring be: the huge water-saving amount that surpasses water consumption.Even water is got city tap-water and is made the water source in earlier stage, not only the not increase of city tap-water total water amount, as if instead reduce in a large number, the inverted situation of causality has appearred, and its reason is as follows:

(1) radical cure of street airborne dust, the numerous residents' go off daily free from dust body that falls is is dailyly washed one's face and rinsed one's mouth, is had a bath and obviously reduce, and washes clothes one time in 10 days originally, now changes 20 days into and washes once.The water-saving amount that the very grand population base of entire city resident is brought is very huge.

(2) city bus, taxi and the various vehicle free from dust car that falls that travels on the street, the big degree of the number of times of carwash reduces.Pressing the city vehicle total quantity and calculate, is again huge with regard to water-saving amount that is brought of carwash.

(3) dust on the roads has been removed in the enforcement of the overhead water spray in street.Make street two take up a large amount of minimizing of peripheral every profession and trade daily cleaning sanitary water.

(4) radical cure of each street airborne dust of city, brought the corresponding obvious minimizing of urban atmosphere dust, particle content, the big degree of air quality improves, the dust rate of entering the room also obviously reduces thereupon, thereby make resident's daily cleaning domestic hygiene, mop the floor, wash the coverlet water and reduce in a large number, grand urban family quantity will can be brought very grand water-saving amount again.

In sum, the enforcement of this engineering when reaching city natural ecological environment radical cure purpose, has brought again the enormous amount saving of water resource and the minimizing of the corresponding enormous amount of sewage discharge.

Implementing this engineering water source selecting and purchasing scheme should be according to each urban geography, weather, water resources situation and city size, densely populated degree, and the concrete condition of economic development depth is suited measures to local conditions, and adopts decision.Admissible scheme is as follows:

(1) on the avenue tap water pipe line on the spot water intaking implement this engineering.

(2) set up big storage reservoir on side, surrounding city river, block surface flow after the suitable purified treatment of water, be input into through the special line waterpipe and implement this engineering in the city.

(3) be matched with this engineering, run-up street system for reclaiming rainwater.According to the interrelated data introduction: in Israel, the urban rainwater rate of recovery is up to more than 90%.Along with the fast development of current social economy, water consumption is poly-to be increased, and the contradiction of the shortage of northern China city water resource is more and more outstanding, severe.It is imperative to build the complete system for reclaiming rainwater in northern city.Particularly preferentially build the avenue system for reclaiming rainwater.Not only can be used for overhead water spray, save running water reclaiming rainwater.And the water street rainwater reclaim line that can reflux into of landing of the overhead water spray in street enters the outside the city rainwater and reclaims the storehouse.Thereby reach the high ecological criteria of the circulating recycling of water resource.

The construction of urban rainwater recovery system has simultaneously also solved the old problem of storm period city water drainage facility deficiency, is to achieve many things at one stroke.

(4) municipal sewage water yield abundance, stable, supply with reliable.Be matched with this engineering, strengthen, accelerate the input that municipal sewage treatment is built.With sewage treatment plant handle water in the regeneration up to standard be used for about 5 o'clock early mornings of every day nobody implements opportunity on the street overhead wash away the type water spray and on spray, sweep and scrub the type water spray synchronously down.This scheme can be saved the running water resource of enormous amount, for the enforcement of native system engineering provide another bigger, very reliable and be cheap water resource.And the increasing catalysis of this municipal middle water reuse scope, the reuse water yield municipal sewage treatment rapid development of building, the minimizing significantly that has brought urban wastewater discharge.Thereby promoted the formation of the recycling circle of municipal water.Urban ecology supportability and capacity of self-regulation have been strengthened.

(5) cooperate this engineering, urban rainwater, surface water, water resource of reclaimed water pipeline are comprehensively laid also for fire fighting truck provides cheap water source in the city, have reduced the fire-fighting cost, have saved a large amount of running water.

(6) on the basis that urban rainwater recovery system and storage reservoir are built, increase landscape tree prevention and control of plant diseases, pest control dedicated water reservoir and various sudden infectious disease setting up as: the epidemic prevention medicament dedicated water reservoir of diseases such as SARS, bird flu, give full play to the advantage in geography of utilizing the overhead water spray facility in street and functional characteristic and come to spray, and zone, toll bar, emphasis highway section are at the emergent medicament water sprinkling work of various sudden infectious disease health and epidemic preventions at automation at the night medicament water of the other landscape tree prevention and control of plant diseases, pest control in road.

(7) be matched in this system engineering, set up the underground pipe network and the automatic water mixing system of complete city tap-water, rainwater, surface water, recycled water and health and epidemic prevention medicament dedicated water.

(8) national project of South-to-North water diversion, will promote, implement this system engineering for northern city provides solid water source to guarantee.

(9), can be chosen in the moist phase that the method that adds the environment-friendly type NMF in the special-purpose water source prolongs road surface, water spray back in the very short city of water resource.

(5) allomeric function characteristic and macro effect

(1) permanent work of native system engineering for putting things right once and for all, service life can be for 30 years.

(2) the native system construction investment little, implement simple, instant effect, can reach the effect of getting instant result.And its enforcement draws a bit, is with completely, to the natural ecological environment, the city look and feel that improve a city, will play the huge effect of turning a crude essay into a literary gem.

(3) enforcement of native system engineering, numerous residents provide clean air for northern city, comfortable outside environment.No matter resident's go off daily by bus, is still driven, and still walks with fresh air on the pavement, moistening and does not have dust, has fundamentally eliminated northern city dweller's go off daily and must inhale dense ash---and this is to the great city of human body harmfulness persistent ailment.And can avoid the harm of strong sunlight ultraviolet ray direct projection in summer.Thereby improved resident's holistic health level greatly.

(4) along with the raising of city dweller's holistic health level, thereby reduced hospital admission rate and the spending of resident's medical fee significantly, social benefit, business efficiency are difficult to estimate.

(5) the native system engineering implement in full the obvious raising that has driven city integrated air quality, the dust in the family into of wafing obviously reduces.Along with the fast development of economic society, resident's rhythm of life of working is obviously accelerated, and that the resident washes one's face and rinses one's mouth after going home is few, and it is few to have a bath, and laundry is few, and loaded down with trivial details domestic hygiene cleaning is few, and numerous residents can economize out many free times and fully loosen rest.Thereby resident's quality of life and grade have been improved greatly.

(6) the other trees in road have been watered in the enforcement of native system engineering fully, make its grow vigorously, flourishing, the urban afforestation coverage rate increases severely, with the humid air, oxygen content improves the big change of appearance of the city looks, the big lifting of city taste.

(7) fundamentally improved the investment environment in city.

(8) fundamentally improved the tourist environment in city.

(9) enforcement of the overhead water spray in street for northern avenue environmental sanitation cleaning provides very reliable wet trade condition, has improved operating efficiency and clearance rate greatly.And with vast environmental sanitation swabber from freeing the bad working environment for many years.

(10) urban land is very in short supply, wretched insufficiency.The thoroughly big of the other arboreal growth state in road taken on a new look, and the tree crown that individual plant is dense becomes many times increase to the street cover-up surface, and equaling has increased urban green coverage significantly not increasing under the situation of floor space.And because particularity, the importance of green coverage present position, forest belt, this street, greening that the huge ecological, environmental protective effect that it is brought into play is other any position and forest cover face institute are inaccessible.Suit measures to local conditions like this, make the best use of the situation, based on the avenue network of communication lines, be the space, with overhead water spray pouring facility perfect on the street is platform, give full play to, utilize space, the position that can plant trees on the street, in broad street two-way every band, speed on the car band, and zone, both sides, the street tall and big arbor species of planting, increase the row position that plants trees, farthest increased street tree planting amount, additionally do not increasing under the situation of floor space, low fund input, formation intersect in length and breadth, the gather ecological, environmental protective forest belt net in city fast on avenue.Increase the urban air oxygen content, improve the whole natural ecological environment in city.In the city, the formation of formula forest belt, this street net will be played extremely far-reaching and great influence to northern city natural ecological environment to the urbanization construction.

(11) be matched with this engineering, geography, meteorology according to each city, choose wind band direction, reclaiming storehouse and the overhead water spray in street at the rainwater of the big water surface of urban periphal defence construction lands water and reclaims the precipitation reservoir, this reservoir is in its water saving of performance, cycling use of water effect, these huge waters surface are originally in highly effective again admittance, absorption, the function of interception sand and dust, airborne dust brought into play of urban periphal defence windward band.

(12) next interim when sandstorm, start this environment friendly system engineering comprehensively, contain the sand and dust on the street, for the stream of people intensive on the street, wagon flow hew out anti-dust green channel.

(13) interim when sandstorm, when air quality is relatively poor, wide, large-area retaining of the high roof platform of entire city and water spray, and the retaining of overhead water spray in each street and environmental protection gallery end face, a large amount of evaporations of everything multi-faceted water will form grand aqueous vapor.The increase of the big degree of aqueous vapor that this constantly rises the air humidity in the sky, city, thereby with aerial fine dust humidifying, these by humidifying fine dust aloft again mutually the collision, adhesion, become the shot-like particle ground of falling, the content of fine dust in air when big degree ground has reduced sandstorm, thus the harm of sandstorm reduced to human body.

(14) boreal climate dry and rainless, do not rain in 2-3 months very for usual, yet the native system engineering when administering the street air quality again for alleviating, improve or even control the air degree of drying of the local and even entire city in densely populated street, the people provides and has followed one's bent for making moistening city microclimate environment, get instant result effective facility and means.

(15) according to " conservation of matter " law, this ecological, environmental protective system engineering is implemented in full a city, multi-faceted grand retaining face and water spray that it is set, and the urban periphal defence water spray reclaims the storehouse, rainwater reclaims storehouse, the foundation of surface water thesaurus.These all in the huge aqueous vapor of evaporation, rising, will directly influence, change the vapor content of this city, north and neighboring area sky cloud layer all the time.The probability of this city and neighboring area natural precipitation and the success rate of rain making have been increased thus.Artificial improvement the regional nature ecological environment.Northern city " effect of dry island " and " tropical island effect " have been cut down.

The present invention, this environment friendly system engineering are implemented in full in a city, draw a line, band comprehensively, have promoted the benign cycle of the whole natural ecological environment of entire city.Containment, the present situation of having repaired the ecological environmental pollution severe exacerbation have purified street environment, have improved urban air-quality, for the numerous residents in northern city create best living environment.The present invention possess water saving, energy-conservation, reduce discharging the uniformity of dirty, low input, high ecological efficiency, social efficiency, business efficiency, and have stronger real necessity and feasibility.It is that country greatly develops the urbanization construction, solves northern urban ecological environment go from bad to worse effective facility and means.This environment friendly system of the present invention engineering is to tradition and the once unprecedented change of backward avenue facility.It will make breakthrough, the historical leap of northern urban ecology environmental protection.

Claims (1)

1, high roof platform retaining, water spray engineering, this project is retaining, the water spray facility that is provided with on the city high rise building roof panel, comprise: cistern (3), water lines (4), water level meter (6), first magnetic valve (8-1), second magnetic valve (8-2), the 3rd magnetic valve (8-3), first check valve (9-1), second check valve (9-2), water pump (14-1), force (forcing) pump (20-1), fountain head (18) and automatic control system (7), and be matched with this engineering outside the city wall large-scale rainwater, the middle water built of ground return storage reservoir (13), it is characterized in that:

Go up entire area at high roof platform (1) and lay PC force-bearing plate (2), become 90 ° of degree to bend up all around to be fixed in to protect around the platform and block on the wall, bending up highly is 400 millimeters, and seam is welded and made cistern (3); The injection degree of depth is 100 millimeters a water in this cistern, and this water surface is the permanent water surface; When this evaporation from water surface, when water level drops to 50 millimeters, water level meter (6) prompting automatic control system (7), described first magnetic valve (8-1) and described second magnetic valve (8-2) in the automatic control system instruction water supply line are opened automatically, water in the tap water pipe line (10-1) is washed first check valve (9-1) open, rush to the roof platform automatic water supplement, when reaching 100 millimeters water levels, the moisturizing program stops automatically;

When natural precipitation, when roof platform holds the rainwater position when surpassing 200 millimeters, rainwater can flow down automatically along overfall (11), by rainwater recovery channel (12) enter described rainwater, middle water returns storage reservoir (13); When described rainwater, middle water return storage reservoir (13) institute retaining abundance, when the roof platform retaining need replenish, described automatic control system is opened water pump (14-1), second magnetic valve (8-2), rainwater that hold on ground rushes to roof platform enforcement automatic water supplement; Thereby reach direct recovery, directly utilize, the natural, ecological environmental protection high standard of holding for unnecessary time rainwater;

When sandstorm comes interim, when urban air-quality is relatively poor, when the street raises up dirt when serious, the starting automatic control system, open first magnetic valve (8-1) and the 3rd magnetic valve (8-3), water source in the tap water pipe line (10-1) is washed open and is passed through force (forcing) pump (20-1) again after first check valve (9-1) rises to roof layer pump house, water under high pressure after the secondary pressurization rushes on the roof platform, through being arranged on around the platform on the guardrail wall each fountain head (18) of 2 meters spacings at high empty position, the overhead enforcement successively in the street, big pressure, at a distance, intensive, rotation staggered form water spray is general just as rainfall; Make full use of the characteristic of water, the water that makes full use of these high position ejections this process of falling from the high-altitude in ground;

When sandstorm comes interim, when air quality is relatively poor, when described rainwater, middle water returned storage reservoir (13) water yield abundance, roof water spray program was opened in described automatic control system (7) instruction, and the operation of spraying water is implemented in the retaining that utilizes described rainwater, middle water to return abundance in the storage reservoir (13); And the water of these ejections passes back into water reclaim line system in the rainwater after landing again, turns back to described rainwater again, middle water returns storage reservoir (13), the repeated use that just can repeatedly circulate after precipitation process of these water;

Be not suitable for implementing the other high building in street of retaining for the roof platform structure, the cancellation impounding scheme separately, is simply implemented the setting of the other high roof water spraying structure in street;

Periodic cleaning, scrub described cistern (3) bottom mud, open the bottom plug (15) of described cistern (3), sewage is through downcomer (16) inflow surface Limber (17) upstairs.

Images