CN102251621A - Energy-saving building material capable of realizing phase-change energy storage by utilizing solar energy - Google Patents
Energy-saving building material capable of realizing phase-change energy storage by utilizing solar energy Download PDFInfo
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- CN102251621A CN102251621A CN2011101356700A CN201110135670A CN102251621A CN 102251621 A CN102251621 A CN 102251621A CN 2011101356700 A CN2011101356700 A CN 2011101356700A CN 201110135670 A CN201110135670 A CN 201110135670A CN 102251621 A CN102251621 A CN 102251621A
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Abstract
The invention discloses an energy-saving building material capable of realizing phase-change energy storage by utilizing solar energy and belongs to building materials. The energy-saving building material is provided with a rectangular building material body, wherein a plurality of cavities are arranged in the middle of the building material body, a waterproof layer is compounded at the inner surface of each cavity to form a closed structure, and phase-change heat-insulation material particles are filled in each cavity; and the phase-change heat-insulation material comprises the following composites in percentage by weight: 60-90 percent of NaCH3COO.3H2O, 3-5 percent of hydrogel with high water absorption, 0.3-1 percent of sodium carboxymethylcellulose, and the balance of auxiliary materials, wherein the total weight percent of all the composites is 100 percent. The energy-saving building material has the advantages of adopting the traditional building material process, being simple for construction with one-time molding and without adhesion layers, and overcoming the defects that as the traditional heat-insulation material needs a multilayer structure and causes cracking, stripping, water seepage and the like.
Description
Technical field
The invention belongs to building material technical field, particularly a kind of energy-saving building material that utilizes solar energy to realize phase changing energy storage.
Background technology
Energy crisis is one of human now significant problem that faces, and is energy-conservation as the 5th energy, becomes whole world both developed and developing country question of common concern.Current, many countries have stepped up the enforcement of housing energy saving standard and rules, and China formulated a series of standards and norms about building energy conservation since 1986.Adopting insulating system of external wall is an important component part implementing building energy conservation in practice.Aspect building materials, wall heat insulation material is to be regarded as one of energy-conservation important channel, becomes the emphasis of research.
The energy storage materials of phase change that is applied to build at present still is in research and trial period.Because phase-change material can absorb or discharge a large amount of heats at phase transition process, during sunlight direct projection in summer surface of wall, the energy-saving phase-change accumulation energy constructional materials that is prepared from by phase-change material can effectively absorb heat, reduce the exterior wall surface temperature, thereby reduce the heat in the body of wall inlet chamber, save the energy that air-conditioning consumed.It can not only play the heat preservation energy-saving effect, and can also control, slow down the body of wall variations in temperature by phase-change material, plays the effect of energy-conservation " multiplier ", and the building energy conservation effect will be greatly increased on existing basis.And it has several pragmatic key characteristics: 1. cost is low.The phase transformation component is integrated with the insulation component, and phase-change material and heat insulating material are brought into play function of heat insulation jointly, improve heat preservation energy-saving usefulness, reduce cost simultaneously; 2. it is convenient to construct.The construction of energy-saving phase-change accumulation energy constructional materials is simple, and the one-shot forming of body of wall energy-saving system insulation layer need not adhesive linkage, can significantly reduce construction costs, and economic benefit possesses skills; 3. energy-saving benefit height.Compare with simple heat-preserving energy-saving wall, " thermal insulation+phase transformation thermal insulation " body of wall energy-saving system energy-saving effect will improve greatly.
What at present, research was more is polystyrene insulation mortar.The easy construction of slurry heat insulating material, compatibility is good, cost is low, be convenient to old housing reform characteristics such as makes, and makes it become an important component part of heat insulating material system.But traditional polystyrene insulation mortar exists the unit weight height, the defective that coefficient of thermal conductivity is big, in order to compensate its defect, also have itself and foamed cement compound, the characteristic of the cementing properties granules of polystyrene aggregate of foamed cement and the low heat conductivity of two class materials are combined, just can make the basic demand that intensity meets heat insulating material, and the foamed polystyrene thermal insulation mortar that apparent density is lower, coefficient of thermal conductivity is littler.But, directly on body of wall, to use as mortar, the subject matter of existence is that the water in the phase transition process can soak structure trunk and causes intensity to descend, even causes infiltration.
Summary of the invention
The object of the invention provides a kind of energy-saving building material that utilizes solar energy to realize phase changing energy storage, to overcome the defective of existing phase-change accumulation energy constructional materials.
A kind of energy-saving building material that utilizes solar energy to realize phase changing energy storage, building materials body with rectangular of profile, be shaped on a plurality of cavitys in the middle of this building materials body, the compound one deck waterproofing course of each cavity inner surface constitutes enclosed construction, is filled with the phase-transition heat-preserving material granule in each cavity; And described phase-transition heat-preserving material is for consisting of: 60-90%NaCH
3COO3H
2O, the hydrogel of 3-5% high water absorbing capacity, the sodium carboxymethylcellulose of 0.3-1% and surplus auxiliary material, each composition weight adds up to 100%.
Advantage of the present invention is to adopt traditional construction material technology, and construction is simple, and one-shot forming need not adhesive linkage, overcome traditional heat insulating material must multi-ply construction and the cracking of existence, peel off, shortcoming such as infiltration.
Description of drawings
Figure is a structural representation of the present invention.
The specific embodiment
As figure is the specific embodiment of the invention, a kind of energy-saving building material that utilizes solar energy to realize phase changing energy storage, building materials body 1 with rectangular of profile, be shaped on a plurality of cavitys in the middle of this building materials body 1, the compound one deck waterproofing course 2 of each cavity inner surface constitutes enclosed construction, is filled with phase-transition heat-preserving material granule 3 in each cavity; And described phase-transition heat-preserving material is for consisting of: 60-90%NaCH
3COO3H
2O, the hydrogel of 3-5% high water absorbing capacity, the sodium carboxymethylcellulose of 0.3-1% and surplus auxiliary material, each composition weight adds up to 100%.
Building materials of the present invention use as common building materials, but phase changing energy storage material wherein can absorb heat and heat accumulation when extraneous variations in temperature, when temperature descends by the phase transformation release heat, play the purpose of regulating temperature in the building, and the present invention adopts the structure of waterproofing course coating phase-change materials, prevented of the erosion of phase transformation moisture, stopped the building infiltration, proved to have following characteristics whole building:
1, the latent heat resistance is bigger, and is molten than heat absorption, condensation heat;
2, overcome inadequate natural endowment disadvantages such as cracking of wall surface, dewfall, mouldy, peeling;
3, random good with the whole bonding of substrate, no cavity is avoided bearing blast and is torn and come off;
4, have wet respiratory, can effectively prevent the condensate water that the exterior wall substrate produces because of the cold and hot temperature difference, outwards discharge summer; Prevent the bloated crack that produces of exterior trim layer ice winter.
5, have the sound absorption reduction function, have incoherent hollow structure in the insulation layer, effectively reduce vibroseis, reduce noise.
6, sterilization removes poison, contains the aromatic structure matter that waits in the material, has expelling parasite, sterilizes, falls effects such as smelly.
7, have the fire prevention noninflammability, can high temperature resistantly reach more than 800 ℃.
8, construction is succinct, and outside finish can be adornd flexible waterproof putty or bonding face brick.
Claims (1)
1. energy-saving building material that utilizes solar energy to realize phase changing energy storage, building materials body (1) with rectangular of profile, it is characterized in that being shaped on a plurality of cavitys in the middle of this building materials body (1), the compound one deck waterproofing course of each cavity inner surface (2) constitutes enclosed construction, is filled with phase-transition heat-preserving material granule (3) in each cavity; And described phase-transition heat-preserving material is for consisting of: 60-90%NaCH
3COO3H
2O, the hydrogel of 3-5% high water absorbing capacity, the sodium carboxymethylcellulose of 0.3-1% and surplus auxiliary material, each composition weight adds up to 100%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101356700A CN102251621A (en) | 2011-05-25 | 2011-05-25 | Energy-saving building material capable of realizing phase-change energy storage by utilizing solar energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101356700A CN102251621A (en) | 2011-05-25 | 2011-05-25 | Energy-saving building material capable of realizing phase-change energy storage by utilizing solar energy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102251621A true CN102251621A (en) | 2011-11-23 |
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| CN2011101356700A Pending CN102251621A (en) | 2011-05-25 | 2011-05-25 | Energy-saving building material capable of realizing phase-change energy storage by utilizing solar energy |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453065A (en) * | 2014-11-19 | 2015-03-25 | 江苏大学 | Composite building block filled with gypsum-based phase-change materials |
| CN104817998A (en) * | 2015-04-23 | 2015-08-05 | 东南大学 | Solid-solid phase change energy storage hydrogel with stable shape and preparation method thereof |
| CN105753392A (en) * | 2016-01-22 | 2016-07-13 | 卓达新材料科技集团有限公司 | Energy-saving plate |
| CN106675527A (en) * | 2017-01-05 | 2017-05-17 | 江南大学 | Nanocellulose composite hydrogel based phase change material as well as preparation method and application thereof |
| CN107574965A (en) * | 2017-10-11 | 2018-01-12 | 安徽恒创环保建材有限公司 | Thermal insulation inner-wall brick |
| CN114276786A (en) * | 2021-12-31 | 2022-04-05 | 华南理工大学 | Inorganic hydrated salt phase-change gel material and forward osmosis preparation method thereof |
-
2011
- 2011-05-25 CN CN2011101356700A patent/CN102251621A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453065A (en) * | 2014-11-19 | 2015-03-25 | 江苏大学 | Composite building block filled with gypsum-based phase-change materials |
| CN104817998A (en) * | 2015-04-23 | 2015-08-05 | 东南大学 | Solid-solid phase change energy storage hydrogel with stable shape and preparation method thereof |
| CN105753392A (en) * | 2016-01-22 | 2016-07-13 | 卓达新材料科技集团有限公司 | Energy-saving plate |
| CN106675527A (en) * | 2017-01-05 | 2017-05-17 | 江南大学 | Nanocellulose composite hydrogel based phase change material as well as preparation method and application thereof |
| CN106675527B (en) * | 2017-01-05 | 2019-08-27 | 江南大学 | A kind of nano-cellulose composite hydrogel based phase-change material and its preparation method and application |
| CN107574965A (en) * | 2017-10-11 | 2018-01-12 | 安徽恒创环保建材有限公司 | Thermal insulation inner-wall brick |
| CN114276786A (en) * | 2021-12-31 | 2022-04-05 | 华南理工大学 | Inorganic hydrated salt phase-change gel material and forward osmosis preparation method thereof |
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Application publication date: 20111123 |