245results about How to "Reduce building energy consumption" patented technology

The invention provides a building coating with a heat insulation function and a preparation method thereof. The building coating with the heat insulation function is divided into an internal wall coating and an external wall coating, wherein each of the internal wall coating and the external wall coating is composed of a basic carrier for film forming of the coating, a heat insulating material, a heat reflecting material, a heat radiating material, filler, an assistant and water. The preparation method comprises the following steps: preparation of heat insulating material slurry, preparation of function material slurry, grinding of slurry, and paint mixing. The film forming thickness of the building coating is 0.2-0.3mm, so that the building coating belongs to a thin building energy-saving coating; the internal and external wall building coatings have higher heat conducting resistance and lower convection heat transfer, so that the building coating has different heat radiating effects under different temperature environments in different seasons and has the heat insulation function; the building coating is high in safety and long in service life; and the preparation method is simple and is suitable for industrial production.

The invention provides a method for preparing nano porous materials with a large specific surface area by a vacuum freeze drying method with short period, simple process and non environmental pollution, which comprises the following steps: (1) taking an organosilane presursor or metal alkoxide as a raw material to synthesize wet gel; (2) allowing the wet gel to stand for 1 to 7 days, and performing aging on the wet gel; (3) using ethanol to clean the wet gel for 1 to 2 days; (4) adding a modifier into the wet gel for soakage for 1 to 2 days, performing solvent displacement, and modifying a three-dimensional network structure of the wet gel; and (5) placing the obtained product into a freeze drying box for prefreezing and vacuum drying. The method is to adopt a novel drying method, namely the vacuum freeze drying method, to dry the wet gel on the premise of maintaining the structure of the wet gel. The drying method has short period and simple process, avoids environmental pollution, cannot damage the network structure of the gel, reduces the production cost, and accelerates the large-scale commercialized application process of nano porous super heat-insulating materials, catalysts and catalyst carrier materials.

The invention provides a solar phase change heat storage wall and a ventilation system provided with the same. The solar phase change heat storage wall is formed by connecting a high-temperature phase change layer, a medium-temperature phase change layer and a low-temperature phase change layer sequentially, wherein the phase change temperatures of the high-temperature phase change layer, the medium-temperature phase change layer and the low-temperature phase change layer are set from high to low. A glass cover plate is arranged on the south side of the outer wall of the ventilation system; the rest part of the ventilation system is composed of an enclosure structure; an outdoor air inlet is formed in the upper part of the north side of the outer wall; and an outdoor air outlet is formed in the upper part of the south side. The solar phase change heat storage wall is positioned in the outer wall and close to the glass cover plate; the high-temperature phase change layer faces south; and an upper vent hole and a lower vent hole are formed in the upper part and lower part of the solar phase change heat storage wall respectively. A hot water system penetrates through the solar phase change heat storage wall to perform heat exchange. The solar phase change heat storage wall can overcome shortcomings of a conventional heat collection wall, has the advantages of good heat storage capability, diversified functions, simplicity for operation and no energy consumption, can achieve the effects of cooling by ventilation and domestic water heating in summer, and can be used for providing heat in winter, thereby having good application prospects.

The invention provides binding mortar with light weight and high droop resistance, which consists of the following components in parts by weight: 300-450 parts of cement, 40-100 parts of rapid hardening cement, 60-200 parts of lightweight aggregate, 250-450 parts of sand, 50-100 parts of filling material, 15-50 parts of re-dispersible emulsion powder, 3-5 parts of cellulose ether, 2-4 parts of lignocellulose, 0.5-2 parts of retarder and 1-5 parts of thixotropic lubricant. The lightweight aggregates are glass microspheres, or hollow glass microspheres or ceramsite sand, of which the particle size is below 1.2mm and loose bulk density is below 0.8Kg / L. The invention has lower mortar density, good droop resistance, lower thermal conductivity and certain thermal insulation performance; the binding mortar can be hardened quickly, and the requirement of carrying out subsequent construction quickly is satisfied; the elastic modulus of the mortar is small, and deformation resistance is strong; and the mortar uses multiple polymer additives, and base materials have strong adaptability and strong binding performance.

The invention provides a method for preparing nano-porous materials with high mechanical property by organic modification, comprising steps as follows: (1) taking alkyl-containing organosilane as a precursor and adding organic high polymer materials into silicon dioxide sol for compounding; (2) carrying out standing and aging on wet gel for 1-7 days, with aging temperature of 25-65 DEG C; (3) cleaning the wet gel structure with solvent and soaking and modifying the wet gel structure with surface modifiers, and then drying the wet gel structure; (4) carrying out heat treatment on the dried nano-porous materials under the temperature of 200-500 DEG C. By the method, the alkyl is successfully linked on a main chain of the silicon dioxide under the condition of hydrolysis and the final xerogel products are ensured to have better mechanical property and hydrophobicity through mutual repulsion effect among alkyl; meanwhile, the organic high polymer materials are added in the process of hydrolysis for compounding to form a high interpenetrating cross-linked network, thus not only improving the flexibility and mechanical strength of the main chain of the silicon dioxide, but also adjusting aperture distribution and finally preparing the light nano-porous materials with large specific surface.

The invention discloses a high-efficiency solar phase-change heat-accumulation heat-collection wall system, which belongs to the technical field of a heat-accumulation heat-collection building utilizing solar energy. A phase-change material plate is attached to the surface of the wall body of a building in a passage of the solar heat-collection heat-accumulation wall, various vortex generators are arranged at the surface of the phase-change material plate at a certain attack angle of incident flow by an array mode, and vortex is induced to thin and destroy a boundary layer clinging to the wall surface or increase the turbulence intensity so as to reinforce the heat exchange of air at the surface and the phase-change material plate and enhance the heat-accumulation / heat-release rate of the phase-change material, thereby enhancing the efficacy of the solar phase-change heat-accumulation heat-collection wall system. Openings at the top end and the bottom of the passage are respectively communicated with a room of the building and an outdoor space, different operation strategies are respectively adopted in winter and summer, and heat is supplied to an indoor space in winter; and hot air in the passage is exhausted in summer, and the comfort level of the indoor space is enhanced. The solar heat-collection heat-accumulation wall has the characteristics of simple manufacture and convenient installation and has extensive application prospect and popularization value in a solar building.

The invention relates to a gypsum-based paraffin phase-changing energy-storing wall board and a manufacture method thereof. Porous substrates and paraffin phase-changing materials are stirred and mixed at the temperature of 60-70 DEG C for keeping 15-20 hours, and the porous substrates fully absorb the paraffin phase-changing materials, so that the paraffin phase-changing materials can enter inner holes or interlay structures of the porous substrates, and the porous substrate paraffin phase-changing energy-storing composite material particles can be obtained. Gypsum powder and the porous substrate paraffin phase-changing energy-storing composite material particles are weighed in proportion, stirred and mixed and dry-mixed for 1-2 minutes at the temperature of 25-30 DEG C, and water weighed in proportion is added and then stirred for 5-10 minutes. The mixture is poured into a mould, demoulding is performed when a sample is cured after 2-3 hours, and then the gypsum-based paraffin phase-changing energy-storing wall board can be obtained. The gypsum-based paraffin phase-changing energy-storing wall board has the advantages of being low in price, capable of controlling indoor temperature fluctuation of buildings and reducing energy consumption of the buildings and the like.

The invention discloses a flame-retarding functionalized phase-change composite material which includes, by mass, 20-70% of a phase-change energy storage material, 17-55% of a support material, 3-10% of a porous material, 5-25% of a flame retarder and a synergist, 2-5% of a compatilizer, 1-5% of a heat conductive material, 3-8% of a light absorbing material, and 1-5% of other functional additives. The functionalized phase-change composite material has homogeneous texture and large latent heat, and has excellent photo-to-heat conversion capability and flame-retarding performance.

The invention discloses an integral type thermal insulation building, which belongs to the technical field of building engineering. The problem to be solved is to provide the integral type thermal insulation building. The adopted scheme is that the integral type thermal insulation building at least uses one of an inorganic thermal insulation structure layer and an inorganic thermal insulation layer, wherein the inorganic thermal insulation structure layer is formed by combining one or two of inorganic thermal insulation load-bearing concrete and inorganic thermal insulation load-bearing building blocks; and the inorganic thermal insulation load-bearing concrete comprises the following components in a mixing weight ratio (kg / m<3>) of concrete composite light bone admixture to cement to sandto stone to porcelain granule to fly ash to water to concrete admixture of (6-225):(200-800):(300-700):(500-1,600):(150-650):(10-600):(80-400):(0.1-200). The integral type thermal insulation buildingcan be widely applied to the technical field of buildings.

The invention discloses a construction waste reclaimed brick powder-containing spray construction heat insulation mortar. The mortar is prepared from, by weight, 500-700 parts of construction waste reclaimed brick powder, 100-310 parts of a gelling material, 10-20 parts of redispersible powder, 3-5 parts of hydroxypropyl methyl cellulose ether, 2-4 parts of a crack resistant fiber, 0.1-1 part of an anti-sagging agent, 0.1-0.5 parts of a water repellent, 0.03-0.3 parts of an air entraining agent, 0.8-1.2 parts of a water reducer and 1000 parts of water. The mortar has the characteristics of A grade flame retardation, good heat insulation performance, high compression and tensile strength, long life, environmental protection, waste recycling, easy mechanical spraying construction, construction energy consumption reduction, suitableness for internal and external wall heat insulation construction, simplicity, feasibility and low cost.

The invention discloses a paraffin-SiO2-TiO2 phase change microcapsule. The paraffin-SiO2-TiO2 phase change microcapsule is formed with oil-phase paraffin as a core and a composite material of titanium dioxide and silicon dioxide as a shell. The invention also discloses a method for preparing the paraffin-SiO2-TiO2 phase change microcapsule by use of a sol-gel method, and finally discloses an application of the paraffin-SiO2-TiO2 phase change microcapsule in preparing a heat-accumulation thermal insulation coating, wherein the coating is prepared from the paraffin-SiO2-TiO2 phase change microcapsule, titanium dioxide, calcium carbonate, a styrene-acrylic emulsion and various auxiliaries. The phase change microcapsule with the composite structure has excellent mechanical properties and excellent optical properties; the preparation method of the phase change microcapsule is simple in process, low in cost and capable of effectively solving the problem of leakage during solid-liquid phase change; the heat-accumulation thermal insulation coating prepared from the microcapsule has excellent heat accumulation and thermal insulation properties, and is capable of effectively improving the thermal comfort of a building and reducing the energy consumption of the building.

The invention discloses paraffin / expanded perlite phase-change thermal insulation mortar prepared from the following raw materials: 364 parts of ordinary Portland cement, 40 parts of coal ash, 160-200 parts of expanded perlite, 400-450 parts of water, 20-40 parts of epoxy resin, 20-40 parts of T31 curing agent and 320-400 parts of phase-change thermal energy storage material. The paraffin / expanded perlite phase-change thermal insulation mortar is prepared by two steps of firstly, preparing a paraffin / expanded perlite sizing phase-change material, and packaging the paraffin / expanded perlite sizing phase-change material; secondly, preparing the paraffin / expanded perlite phase-change thermal insulation mortar. The phase-change thermal insulation mortar can be used for effectively reducing the indoor temperature fluctuation range, shortening the indoor temperature fluctuation time and improving the living comfort level.

The invention provides a system and a method for evaluating the building hot and humid environment levels. Different evaluating methods can be selected according to different building cold and heat source types; the system and the method are applicable to artificial cold and heat source buildings and non-artificial cold and heat source buildings; the building hot and humid environment levels and the building indoor comfortable temperature range can be objectively obtained; the indoor hot comfortable environment can be favorably and effectively improved; and the building energy consumption is reduced. The building hot and humid environment levels in different regions, different seasons, different buildings and different environments can be judged, and the evaluating method is more comprehensive.

The invention discloses an existing building exterior wall reconstruction structure and a construction method. The existing building exterior wall reconstruction structure comprises a newly-built wallbody, vertical reinforcing steel bars, horizontal reinforcing steel bars and tie bars, wherein the newly-built wall body is tightly attached to the outer side face of an existing building wall body,and is built with porous bricks; pores of upper-layer porous bricks and lower-layer porous bricks of the newly-built wall body are vertically formed correspondingly; one group of horizontal reinforcing steel bars is arranged at intervals along the outer side face of the existing building wall body; the vertical reinforcing steel bars are inserted into the pores of the porous bricks in the full length; one group of horizontal reinforcing steel bars is arranged at intervals along a vertical direction; the horizontal reinforcing steel bars are arranged in mortar joints of two adjacent layers of porous bricks; the two ends of the horizontal reinforcing steel bars are fixedly connected with the vertical reinforcing steel bars on a corresponding side; the tie bars are horizontally arranged between the existing building wall body and the newly-built wall body. The existing building exterior wall reconstruction structure and the construction method provided by the invention have the advantagesthat the technical problems of difficulty in reconstructing and upgrading the existing wall body and recovering the original appearance, incapability of making the building reach designed service life and resource waste are solved.

The invention relates to the field of agricultural ecological greenhouses, in particular to a new energy closed-loop type comprehensive energy-saving system applied to the agricultural ecological greenhouses. The new energy closed-loop type comprehensive energy-saving system applied to the agricultural ecological greenhouses is used for fully realizing intelligent management of greenhouses by using effective combination of an Internet of things intelligent control system, a film photovoltailc system and a high-temperature and high-efficient screw heat pump system. According to the new energy closed-loop type comprehensive energy-saving system applied to the agricultural ecological greenhouses, the technology, process and equipment for agricultural production are improved, the energy consumption, water consumption and pollution are reduced, the effects of energy conversation and emission reduction are achieved and the maximization of economic benefit and social benefit is realized.

The invention relates to a large-sized seedling transplanting construction device, and belongs to the technical field of landscape construction. The large-sized seedling transplanting construction device comprises soil balls (1), a flexible permeable hose (2), rubble (3), a sand prevention net (4), mixed loam (5), planting soil (6), a PVC (polyvinyl chloride) exhaust pipe (7), a retaining ring (8), a covering (9), a wood board (10), pillars (11), burlap (12) and a trunk (13). The device can transplant all kinds of large-sized seedlings, ensure the robustness of plants, improve the survival rate of the transplanted seedlings, purify air, reduce dust and noise hazards, and adjust the temperature and humidity of air, and is in line with national energy saving and environmental protection requirements.

The invention relates to a cooling-heating-integrated double-capillary-tube-layer phase-change energy storage floor terminal device and an application system. The cooling-heating-integrated device combining a traditional capillary tube radiant cooling / heating with the phase-change energy storage technology comprises a ground source heat pump, a water distributor, a water collector, a solar heat collector, an auxiliary electric heater and an energy storage floor. The energy storage floor comprises a floor surface layer, a concrete layer, a heat storage phase-change material layer, a cement mortar screeding layer, a cool storage phase-change material layer, a reflecting film and an insulating layer from top to bottom, wherein the heat storage phase-change material layer is used for storing heat at night in winter, the cement mortar screeding layer is used for separating the heat storage phase-change material layer from the cool storage phase-change material layer and facilitates laying of the phase-change material layers, the cool storage phase-change material layer is used for storing cool at night in summer, the reflecting film is used for reflecting and blocking heat to decrease heat exchange between the cool storage phase-change material layer and the insulating layer, and the insulating layer is made of materials low in heat conductivity and small in density and used for further decreasing heat loss of floor structural layers. Capillary tubes are laid in the heat storage phase-change material layer and the cool storage phase-change material layer to be used for supplying hot water and cool water respectively.

The present invention discloses low temperature baking process of heat conductive corundum-mullite ceramic tile. The process includes the steps of material treatment, powder preparation, pressing to form and sintering. The heat conductive corundum-mullite ceramic tile has certain energy saving effect, high mechanical performance and high heat conductivity. Using the heat conductive corundum-mullite ceramic tile can utilize geothermal resource effectively, lower energy consumption of building and protect ecological environment.

The invention discloses intelligent management and control equipment for the cold and hot joint supply of a heating ventilating and air conditioning system and a control method thereof. The intelligent management and control equipment comprises a user side environment data collection system, a user side monitoring system and a heat source side monitoring system. The intelligent management and control equipment realizes the maximum using of clean energy through a modified terminal temperature load prediction algorithm and the lowest energy loss cold and hot quantity equilibrium assignment algorithm, thoroughly solves the problem that the existing system only taking the environment temperature as a basis is inaccurate in load prediction to realize the equilibrium of cold and hot supply and demand, and meanwhile solves the problem of the cold and hot real-time maximum energy efficiency ratio tracking; meanwhile, the equipment can effectively protect external sensors and cold and heat source equipment, and images which are very visual on a touch screen and used for displaying the system, environment and equipment parameters in real time ensure that a user masters the whole joint supply system.

The invention provides a demand-oriented illumination energy conservation control system based on body recognition. The demand-oriented illumination energy conservation control system comprises a photographic device, a plurality of illuminating devices and a control device. The photographic device is used for detecting positions of human bodies. The control device is in signal connection with the photographic device, is in point connection with each illuminating device through a relay, acquires position coordinates, in a set coordinate system, of human body signals collected by the photographic device, and controls the illuminating devices corresponding to the position coordinates to illuminate by the aid of the relay according to the acquired position coordinates. The demand-oriented illumination energy conservation control system has the advantages that the control system recognizes human bodies in a place visually, analyzes position information of the human bodies, sends out control signals according to personnel distributed information by means of a processing terminal and a control circuit, and adjusts illuminating light correspondingly, so that demand-oriented illumination is achieved, building energy consumption is reduced, and intelligent illumination adjustment is realized.

The invention relates to a building materials for industry and civilian use, specifically to a boric sludge-lead zinc slag sintered product and a method for producing thereof characterized by preparing the product by mixing, fine crushing, stirring with water, pre-extrusion, extrusion under vacuum or vibrative pressure molding, drying, calcination using 25-45% of boric sludge and 75-55% of lead-zinc slag as materials. The product of the invention is a new industrial and civil building material, and the materials the invention used is all waste slag without resource materials, while the product has advantages of stable performance and wide usage, accords with a plurality of national industry policies and has significant economic and social benefits.

The invention discloses a photovoltaic solar protection device with a fresh air ventilation function. The photovoltaic solar protection device with the fresh air ventilation function comprises a photovoltaic sun shield, a fresh air ventilation device and control switches, wherein the photovoltaic sun shield comprises a photovoltaic cell panel and a heat-insulated waterproof case; the fresh air ventilation device is provided with an upper air flue and a lower air flue, wherein a pyroelectricity module formed by a pyroelectricity chip and heat pipe radiators at the upper end face and the lower end face is arranged in the middle of a clapboard separating the upper air flue and the lower air flue, and the upper air flue and the lower air flue are internally provided with blowers; the photovoltaic cell panel is connected with the pyroelectricity chip and the control switches by leads, and the switch of working conditions of the winter and the summer is achieved through the switch of the control switches. According to the photovoltaic solar protection device disclosed by the invention, the photovoltaic in-situ power generation and utilization are achieved while the integration of a fresh air unit function and a sunshading function, the recycle of waste heat and cool air all year round is achieved, the advantages of photoelectric and photo-thermal comprehensive utilization, high system efficiency and compact device structure are provided, and the popularization and utilization values are favorable.

The invention discloses a multi-span box girder integral ultrahigh alternate jacking construction system and method. By controlling two groups of jacks capable of positively applying a jacking force, after jacking of one group of jacks is finished, the jacking force of the group of jacks is uniformly linearly transferred to the second group of jacks for performing alternate continuous jacking operation. The overpass bridge ultrahigh alternate jacking construction solution can ensure that during jacking, a bridge structure is safe, the jacking precision and a line type after the whole bridge fall down meet design demands, a construction period is ensured, building energy consumption is reduced and an urban ecological environment is met.

The invention provides a heat supply and cold supply system capable of achieving solar energy and underground water combined energy supply. The heat supply and cold supply system comprises a solar energy heat collecting module, a phase-change heat storing module, a heat supplying and cold supplying terminal module and a temperature and humidity independent control air conditioner module; and different subsystems including a solar energy phase-change heat storing subsystem, a solar energy heat supplying and heating subsystem, a phase-change heating storing, heat supplying and heating subsystem,a solar energy temperature and humidity independent control air conditioner subsystem and a phase-change heat storing temperature and humidity independent control air conditioner subsystem can be formed by the modules through different port switching of four-way valves and three-way valves, and then the functions of heat storing in all year round, heat supplying and heating in winter and temperature and humidity independent control in summer are achieved. According to the system, the total functions are complete, control is flexible, adjusting is convenient, and the building energy saving effect is good.

The invention discloses a novel phase-change energy-saving wall based on an active and passive adjustment technology. The novel phase-change energy-saving wall comprises a transparent glass cover plate, an electric metal shutter, heat pipes, a concrete wall body, a heat preservation and insulation layer, a phase-change material plate and a cement mortar layer; the wall body is sequentially provided with the transparent glass cover plate, the electric metal shutter, the concrete wall body, the heat preservation and insulation layer, the phase-change material plate and the cement mortar layer from outside to inside; an air flow channel is formed between the electric metal shutter and the concrete wall body; ventilation openings are formed in the upper end and the lower end of the concrete wall body correspondingly; and the heat pipes comprise the forward-direction transfer heat pipes and the reverse-direction transfer heat pipes, wherein the forward-direction transfer heat pipes and the reverse-direction transfer heat pipes are arranged in a staggered mode. According to the novel phase-change energy-saving wall based on the active and passive adjustment technology, on the basis of the passive adjustment technology of the phase-change wall, the heat pipes, night sky radiation and solar heating and ventilation active adjustment technology are effectively integrated, the novel phase-change energy-saving wall is integrated with a wireless communication control means, active intervention regulation and control are enhanced, the annual indoor thermal environment quality is further improved, the indoor cold and heat loads are reduced to the maximum extent, and building energy consumption is reduced.

The invention provides an exterior wall insulation and decoration system provided with the functions of thermal insulation, decoration and fire prevention and integrally constructed with the structure, and a manufacture and installation method thereof. The insulation and decoration system includes insulation decorating plates serving as exterior formworks, as well as horizontal and vertical caulking strips and fixing pieces, wherein grooves are arranged on the peripheries of the insulation decorating plates; the caulking strips are arranged between the insulation decorating plates and embedded in the grooves; the horizontal caulking strips are provided with horizontal ribs and used for supporting the insulation decorating plates at the upper part during the installation, and installation seams with fixed width are formed between the insulation decorating plates; when the formworks are supported, gaps reserved between the horizontal and the vertical caulking strips are used for mounting wall-penetrating anchor rods; and anchor bolts are embedded in the insulation decorating plates, threads are arranged at the end parts of the anchor rods and used for being connected with the fixing pieces. According to the invention, the fixing pieces are used for connecting the insulation decorating plates with light steel frameworks inside a concrete wall body through the anchor bolts, so that the distance from the light steel frameworks to the inner sides of the insulation decorating plates is kept unchanged, and the thicknesses of protective layers on the two sides of concrete after concreting are accurate.

The invention relates to a method for preparing building materials by virtue of sludge pyrolyzation. The method comprises the following steps: (1) drying sludge in a solar greenhouse; (2) sending the sludge processed in the step (1) into a drying chamber, drying the sludge by virtue of any heat source (preferable flue gas of a system), sending the sludge into a pyrolyzation chamber, pyrolyzing the sludge so as to produce combustible gas and sludge carbon, introducing combustible gas into a combustion chamber for combustion, introducing high temperature flue gas produced during the combustion into the drying chamber to preheat and dry the sludge, introducing exhaust gas produced during drying and cooled flue gas into gas purifying equipment, and discharging exhaust gas and flue gas into a chimney after purification; (3) sending high temperature sludge carbon prepared in the step (2) into a cooling chamber, cooling, and breaking cooled sludge carbon into particles with the particle sizes less than 20mm in a breaking machine; and (4) stirring the following mixed materials in parts by weight, molding by casting in a mold, carrying out natural drying and maintenance in the mold, removing the mold, and drying. By preparing the building materials from the sludge, the cost is lowered, the land source is saved, and the pollution problem caused by the sludge to surrounding environments is solved.

A related aqueous high-molecular waterproof coating is characterized by comprising the following compositions in parts by weight: 20-50 parts of an emulsion, 0.08-1.8 parts of a thickening agent, 0.08-0.25 parts of auxiliary agent AMP95, 0.45-2.3 parts of a dispersing agent, 0.04-0.23 parts of a wetting agent, 0.08-0.55 parts of an anti-foaming agent, 35-65 parts of a powder material, 0.8-2.5 parts of a film-forming auxiliary agent, 0.8-2.2 parts of a cosolvent, 0.045-0.23 parts of an antiseptic, 0.1-0.3 parts of a softening agent, 0.2-0.7 parts of an ageing-resistant agent, and 3-12 parts of water. The aqueous high-molecular waterproof coating is safe, free of toxic and side effects, free of pollution to environment, high in caking strength, short in drying time, convenient to use, free of influence to visual effect, resistant to corrosion, waterproof, resistant to acids and alkalis, and the like. Also, the coating is simple in preparation technology and high in cost performance, and widely applicable to metal surfaces.

The invention discloses an energy saving method for a building and an energy-saving building structure. The energy-saving building structure comprises walls and floors and is characterized in that the energy-saving building structure further comprises outer wall bodies, the outer wall bodies are transparent and arranged on the outer sides of the walls, air channels are formed between the outer wall bodies and the walls, the tops and the bottoms of the outer wall bodies are provided with linkage openings respectively, the bottom openings are closed when the top openings are opened, and the bottom openings are opened when the top openings are closed; the walls, close to the floors, of each storey are provided with through holes, the through holes are communicated with the air channels and the indoor areas, and the through holes are internally provided with positive-reverse rotating fans and hole switches. By means of the method, renewable energy resources and idle resources can be fully utilized, building energy consumption is greatly reduced, the indoor natural ventilation effect is enhanced, and comfort is improved while a healthier environment is created; the energy-saving building structure has the advantages of being low in cost, environmentally friendly and capable of lowering energy consumption.

The invention relates to phase-change roof self-insulation ceramsite concrete, and belongs to the technical field of building materials. The problems that existing ceramsite concrete is low in strength property and poor in energy storage effect can be solved. The phase-change roof self-insulation ceramsite concrete comprises, by mass, 30%-40% of cement, 20%-35% of pottery sand, 8.0%-13% of phase-change material, 10%-20% of ceramsite and 5.0%-8.0% of coal ash. The phase-change material uses the ceramsite as a loaded carrier. According to the concrete, the phase-change material is added and loaded onto the ceramsite, hence, a good energy storage effect can be achieved, and a large amount of heat can be stored or released when phase change happens; the phase-change latent heat range is wide, indoor temperature fluctuation is reduced, and cost is lowered; meanwhile, the strength property of the concrete can be guaranteed.