430 results about "Urban heat island" patented technology

The present invention relates to a roof-greenting material with light matrix, said material is different from existent roof-greening material which mainly uses natural plant sedium lineare. Said invention mainly uses the waste and discarded material to form its roof-greening material matrix formula.

The invention relates to a cement concrete permeable brick, a cement concrete permeable road and production methods thereof. At present, most of urban construction adopting the rigid hardened ground has the problems of dust blowing at a fine day, water accumulation and impermeable ground at a rainy day, no groundwater level supplement, no relief of urban heat island effect, and the like. The invention aims to develop a cement concrete permeable brick, a cement concrete permeable road and production methods thereof. The cement concrete permeable brick is formed by pressing and molding a base material layer and a surface material layer, and both the base material layer and the surface material layer contain cement, sand, stone, water adsorbing resin, asphalt powder, diffusant and a water reducing agent. The production method of the permeable brick is realized by molding the permeable brick by a computer full-automatic building block forming machine; and the production method of the cement concrete permeable road is realized by directly pressing the cement concrete permeable road through a road roller. The invention can achieve the aims of water adsorption, water retention, permeability and practicability, can be widely used for a highway, an airport runway, a roadway, a footway, a square, garden construction, and the like and solve the problem of road icing.

The embodiment of the invention provides a reflective heat-insulation coating and a preparation method thereof. The reflective heat-insulation coating comprises the following raw materials of aqueous pure crylic acid resin, aqueous elastic resin, titanium dioxide, ceramic hollow microspheres, infrared powder, a flame retardant, water, an organic dispersant, a film-forming additive, an antifreeze, a thickener, an anti-foaming agent, a wetting agent, a preservative and a pH value regulator. The coating is a single-component aqueous coating, has no toxicity and good weatherability; extremely fine hollow microsheres are closely arranged by multi-stage in the coating to form a vacuum layer so as to have extremely strong reflection and obstruction function to the solar radiation heat and can effectively reduce the radiation heat transfer and convection heat transfer, thus reducing the heat balance temperature on the surface of the article. The reflective heat-insulation coating leads the building space and the facility container to be warm in winter and cool in summer, reduces the heat island effect and energy consumption of the air conditioner, has obvious energy-saving effect, and reduces the surface temperature by 20 DEG C to a maximum extent and reduces the internal temperature by 5-10 DEG C compared to the normal coating.

The invention discloses a construction waste recycled aggregate water milled colorful paving brick and a preparation method thereof, and belongs to the field of building materials. The colorful paving brick is prepared by the following raw materials in parts by weight: 200-260 parts of fine aggregates, 60-80 parts of rough aggregates, 5-10 parts of aggregate modifier, 30-80 parts of nanometer silicon dioxide, 50-70 parts of polyamide, 0.3-0.5 parts of water reducing agent, 100-140 parts of cement and 40-70 parts of water. The product adopts construction waste recycled aggregates as the main raw material, thus being naturally multicolored, reducing processes and expenses for doping stones and pigments, beautifying the environment, reducing cost and saving natural resources. Meanwhile, the invention also provides a preparation method of the water milled colorful paving brick, the preparation method is simple in process, the prepared product is high in permeability performance and mechanical performance, and strong in ultraviolet ray and thermal radiation absorbing ability, and reduces urban heat island effect in the summer.

Compositions comprising highly reflective microcrystalline/amorphous materials are provided. In some instances, the highly reflective materials are microcrystalline or amorphous carbonate materials, which may include calcium and/or magnesium carbonate. In some instances, the materials are CO₂ sequestering materials. Also provided are methods of making and using the compositions, e.g., to increase the albedo of a surface, to mitigate urban heat island effects, etc.

The present invention relates to a method of regulating and controlling surface temperature of concrete or asphalt structure (the structure) and the like, as well as atmospheric or air temperature around the structure by encapsulating and containing temperature (thermal) control materials (TCMs) or/and water in the structure which constructs or constitutes pavements, roofs, parking lots, walls and the like. Volume ratio of water and one or more TCMs encapsulated and contained in the structure are from 0.01% to 99.99%. Based on simulation analysis, on one hand, the present invention, in summertime, can reduce the highest temperature on surface of the structure by up to 56.5% (reduced by about 46° C.), and reduce the highest temperature of air around the structure by up to 54.4% (reduced by about 48° C.), therefore “heat island” effect in urban areas in summer can significantly be reduced, thus saving cooling energy and benefiting human health. On the other hand, in wintertime, by the invention the surface temperature of the structure can be raised by up to 5.6° C., and the temperature of air around the structure can be raised by up to 5° C., accordingly heating energy demand is reduced.

The invention relates to water permeable bricks produced by using building waste residue and a manufacturing method thereof. The manufacturing method is characterized by comprising the following steps: mechanically stirring a lower-layer brick material, which is formed by uniformly mixing building waste residue powder, waste glass powder, fly ash, portland cement, calcium oxide, calcium sulfate, sodium chloride, rosin pyrolytic polymer, calcium sulfonate, sodium sulfate, sodium aluminate and water, to be in a moist state, then performing mechanical vibration extrusion to form lower-layer bricks, further uniformly distributing an upper-layer brick material, which is formed by uniformly mixing marble waste residue powder, bentonite, talcum powder, iron oxide and water, on the upper parts of the lower-layer bricks through a secondary material distributing machine for forming a layer of surface material, then preparing water permeable adobe under the pressure of 25-30MPa, further performing steam curing, heating, keeping temperature constant and naturally cooling down to prepare water permeable brick products by using the building waste residue. The products have multiple functions of having water permeability, gas permeability and water retention property, reducing the temperature, reducing the noise, regulating the climate, eliminating the heat island effect of an urban, improving the air quality, keeping the circulation of surface water and the like, and have the advantages and effects of no pollution, low cost and good benefits.

The invention discloses a functional rainwater garden applicable to a sponge community. The functional rainwater garden comprises a pre-percolation layer, a water storage layer and an overflowing facility, wherein the pre-percolation layer comprises an annular edge slope arranged at the periphery of the garden; a zeolite-active carbon filtering system is laid on the annular edge slope; a part, far away from the garden, of the annular edge slope is higher than a part close to the garden; the water storage layer comprises a covering layer, a planting soil layer, a percolation layer and a filling layer which are arranged in sequence from top to bottom; an overflowing pipe of the overflowing facility penetrates into the water storage layer along the vertical direction; an overflowing hole of the overflowing facility is higher than the water storage layer. According to the functional rainwater garden, a multi-grade percolation system composed of the pre-percolation layer, an active carbon layer and the water storage layer has the effects of filtering, precipitating, permeating and adsorbing rainfall runoff, carrying out ion exchange, biodegradation and plant absorption and the like, and pollutants including heavy metal, organic matters, nitrogen and phosphorus and the like in the runoff are reduced, so that absorption and purification of the runoff are realized; water for greenbelts is reduced, and urban waterlogging and municipal drainage pressure are alleviated; a heat island effect is alleviated and an ecological city is constructed.

The invention discloses an urban intelligent high pole street lamp spraying system.The urban intelligent high pole street lamp spraying system comprises a high pole street lamp, a spraying atomization device, a water supply pipeline system and an automatic control system.The spraying atomization device is used for producing atomized water and comprises at least one spray nozzles arranged on the upper portion of the high pole street lamp; the water supply pipeline system comprises a vertical water supply pipe, an underground water supply pipe and a water inlet pipe network; the automatic control system comprises a display device, a controller, a first signal input module, a second signal input module, a third signal input module and a pressure sensor set.The intelligent high pole street lamp spraying system is simple in principle structure, low in construction cost and high in automation degree.Corresponding spraying equipment is additionally installed on an existing urban street lamp to spray atomized water to urban roads, floating diffusion of particulate matter in air is effectively restrained, urban microclimate is improved, and the air quality is improved.Meanwhile, water sprays are mixed in the air, people feel cool and comfortable, the urban temperature can be decreased within a small range, and the urban heat island effect is relieved.

A water-retaining and cooling material for road is disclosed, which is prepared by using, in parts by weight, 30-80 parts of cement, 10-100 parts of inorganic mineral, 0.1-10 parts of water-absorbing resin, 20-100 parts of fly ash and 50-300 parts of water, wherein the inorganic mineral is a composition containing one or more materials selected from sodium bentonite, kaolin, kieselguhr, pottery sand, montmorillonite and mineral slag in any ratio. The water-retaining and cooling material disclosed by the invention is injected into a macroporous bituminous concrete matrix, as well as is great in water-absorbing performance and water-retaining performance; with the gradual rising of the temperature of road surface, lowering for the temperature of road surface by greater than 10 DEG C can be realized, and transferring for temperature to the structural layer of road surface can be efficiently prevented; and road surface paved and poured with the water-retaining and cooling material disclosed by the invention in large area in city efficiently relieves urban heat island effect.

A method of coupling surface urban heat island measures with socio-economic indicators of vulnerability to create improved spatially specific models to assist public health professionals in predicting extreme heat events mortality in urban environments. The method includes utilizing landsat TM imagery for the measuring of the urban heat island intensity levels and a spatial analysis of the variables in question.

The invention discloses a building evaporative cooling energy-saving method, which comprises the following steps: (1) porous water storage material which is internally installed with a water chute and a connection water source port is manufactured and a through core pipe; (2) the porous water storage material is arranged outside a building space enclosing structure; (3) the through core pipe is switched into the connection water source port of the porous water storage material by a needling inserting mode so that the water chute of the porous water storage material can be communicated to be water guide passage; (4) from the top of the space enclosing structure, the water source is switched into the water chute of the porous water storage material so that the porous water storage material constantly keeps the wet state; natural phenomena such as sun energy, air convection and the like are utilized to cause the water building space enclosing structure to evaporate, thus reducing the temperature on the building space enclosing structure. The evaporative cooling energy-saving technique not only improves the thermal environment of architectural interior in hot summer and greatly saves the energy consumption used in air conditioner by human, but also plays a role in playing microclimate of a city and reducing the urban heat island of the city.

The application relates to a method and system for monitoring a urban heat island effect based on a domestic satellite. The monitoring method includes: preprocessing remote sensing data provided by the domestic satellite; performing atmospheric correction on the preprocessed remote sensing data by using a predetermined model, and estimating the earth's surface emissivity; inverting the earth's surface temperature based on the data preprocessing, the atmospheric correction, and the estimated earth's surface emissivity; and drawing a correlation graph corresponding to the earth's surface temperature and/or heat island intensity according to the inverted earth's surface temperature and monitoring the urban heat island effect based on the correlation graph. The method and system can make use of the data of the domestic satellite, quantitatively invert the earth's surface temperature, construct and form a variety of thematic maps and profile maps to realize the quantitative monitoring of the urban heat island effect.

The invention relates to an urban asphalt concrete road surface temperature difference power generation system, which is formed by three subsystems, namely a solar heat collecting system, a power generation system and an electric energy storing and converting system, wherein the solar heat collecting system is used as the heat source of the whole system and is mainly formed by a heat collecting asphalt concrete layer doped with heat conduction materials such as graphite and a heat conduction aluminum sheet 3, which are paved on a road bed; the power generation system is formed by multiple semiconductor temperature difference power generation sheet modules 14 and heat conduction silica grease 15 for enhancing heat conduction; the electric energy storing and converting system comprises a DC (direct current)/DC converter 7, an inverter 9 and a storage battery bank 8. The system utilizes a semiconductor temperature difference power generation sheet 16 to convert the heat collected from the road surface to be directly used electric energy; meanwhile, the excessively fast temperature rising on the road surface in the daytime in summer is alleviated, and the temperature dropping of the road surface at night is accelerated, so the thermal stress damage to the road surface caused by temperature gradient is reduced, the use performance and the durability of the road surface are improved and the urban heat island effect is alleviated.

The invention relates to a drainage and seepage type felting composite structure. The seepage type felting composite structure comprises a beam-slab felting structure, a permeable PC substrate, a U-shaped ecological water draining and collecting ditch, and a seepage and drainage pipe, wherein the beam-slab felting structure is assembled into a side pavement or a motorized vehicle lane; the permeable PC substrate and the beam-slab felting structure are combined into a motor vehicle lane or a square and have a load effect. The U-shaped ecological water draining and collecting ditch is installed at one side or two sides of the motor vehicle lane or the square; the drainage and seepage pipe comprises a transverse PC pipe and a vertical PC pipe; the transverse PC pipe is communicated with the U-shaped ecological water draining and collecting ditch; and the vertical PC pipe is communicated with the transverse PC pipe. The drainage and seepage type felting composite structure is permeable and breathable, can carry out earth surface heat exchange easily, can recycle rainwater effectively, reduces an urban heat island effect, is suitable for eco-environment protection, is simple in structure, and is simple to construct.

The invention discloses a rainwater storage system for avoiding urban inland inundation, haze and heat island effects. A community is used as a unit, the rainwater storage system comprises an open-air greening system, a plurality of ecological filter pools, one or two landscape impounding reservoirs and ecological grass groove systems, wherein the open-air greening system is built on a roof of a building, the ecological filter pools are arranged on the periphery of the building, and the ecological grass groove systems are arranged near a community park, square and road. The rainwater storage system has the advantages that due to the fact that the greening system is arranged on the roof of the building, and a rainwater collection tank, the ecological filter pool, the ecological grass groove systems and the like are arranged on the ground, rainwater mainly infiltrates inwards and compensates for underwater, and the year-round rainfall runoff coefficient of a catchment area in the community is controlled within 0.12 to 0.15 and reaches the national park green space rainfall runoff coefficient design standard. The temperature difference is controlled within 1 DEG C to 3 DEG C, the urban community inland inundation, haze and heat island effects are thoroughly avoided, the landscape function is achieved, and the rainwater garden system is formed.

The invention discloses an urban main built-up area remote sensing extraction method based on impervious surface aggregation density in view of a problem of direct influence of suburban boundary extraction on accuracy of heat island intensity calculation in urban heat island effect extraction. The method comprises the following steps that step 1) urban impervious surface information is extracted by utilizing a threshold value method based on a biophysical composition index BCI for distinguishing urban targets, and precision verification is performed; step 2) the extracted impervious surface image element points act as centers and distance acts as weight, weight of the impervious surface image elements closer to the center points is higher, and aggregation degree of buildings within a radius range is measured; and step 3) a distance threshold value and an aggregation threshold value are set through combination of the extracted impervious surface aggregation density based on geographical location of impervious surface distribution according to an urban clustering algorithm so that the impervious surface aggregation area distribution condition is obtained, and range of urban built-up areas is confirmed.

The invention provides a method for monitoring the dynamic change of the urban heat island intensity. According to the method, a processing and analysis technology of a thermal infrared remote sensingimage and a high-resolution remote sensing image is utilized, a qualitative or quantitative relation among the change of the heat island intensity of a target area, the land coverage change and the landscape indexes is obtained through multi-data image processing and change analysis, so that the understanding on the aspects such as the change of the heat island intensity pattern caused by land utilization transformation in the processes of urban construction, transformation and renovation can be conveniently studied, and a reference is provided for implementation of the policy.

The invention discloses a sidewalk pavement structure for water permeation, water storage and water discharging. The sidewalk pavement structure comprises a sidewalk, a roadway and a rainwater port communicated with a municipal water discharging system and further comprises a transverse water permeation pipe, the sidewalk comprises a water-permeable surface layer, a water-permeable leveling layer, a water-permeable base layer and an inverse filtering cushion which are arranged sequentially from top to bottom, a groove paved with a filling material is formed in the bottom of the inner side of the inverse filtering cushion, and waterproof geotechnical cloth is arranged at the bottom of the inverse filtering cushion, on the left and right sides of the groove and at the bottom of the groove; first kerbs are arranged on two sides of the sidewalk, and the transverse water permeation pipe communicates the groove with the rainwater port. The sidewalk pavement structure has good water permeating, storing and discharging functions, can effectively prevent water accumulation on the surface of the sidewalk and can relieve pressure of the municipal water discharging system under extreme raining conditions to certain extent; rainwater is avoided permeating into roadbeds, so that long-time stability of the roadbeds is guaranteed; water permeability and air permeability of the sidewalk pavement structure can be improved, and urban 'heat island effect' is relieved to certain content.