CN103938788A - Building energy saving and heat preserving method and hollow block - Google Patents
Building energy saving and heat preserving method and hollow block Download PDFInfo
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- CN103938788A CN103938788A CN201410176349.0A CN201410176349A CN103938788A CN 103938788 A CN103938788 A CN 103938788A CN 201410176349 A CN201410176349 A CN 201410176349A CN 103938788 A CN103938788 A CN 103938788A
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- phase transformation
- heat
- gypsum plank
- wall
- energy
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 43
- 239000010440 gypsum Substances 0.000 claims abstract description 43
- 230000000694 effects Effects 0.000 claims abstract description 6
- 238000004378 air conditioning Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 230000008929 regeneration Effects 0.000 claims abstract description 4
- 238000011069 regeneration method Methods 0.000 claims abstract description 4
- 230000009466 transformation Effects 0.000 claims description 39
- GHVNFZFCNZKVNT-UHFFFAOYSA-N decanoic acid Chemical compound CCCCCCCCCC(O)=O GHVNFZFCNZKVNT-UHFFFAOYSA-N 0.000 claims description 26
- 238000009413 insulation Methods 0.000 claims description 14
- 239000005632 Capric acid (CAS 334-48-5) Substances 0.000 claims description 13
- 238000004134 energy conservation Methods 0.000 claims description 9
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims description 8
- 239000011810 insulating material Substances 0.000 claims description 8
- 238000004146 energy storage Methods 0.000 claims description 6
- 239000013585 weight reducing agent Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 5
- 239000011232 storage material Substances 0.000 claims description 4
- 230000003111 delayed effect Effects 0.000 claims description 3
- 230000000704 physical effect Effects 0.000 claims description 3
- 238000010257 thawing Methods 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000012774 insulation material Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 239000012782 phase change material Substances 0.000 description 7
- 238000005265 energy consumption Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 239000004566 building material Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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- Building Environments (AREA)
Abstract
The invention discloses a building energy saving and heat preserving method and a hollow block. The method is characterized in that a phase-change gypsum board is additionally arranged in the surface of a building outer wall hollow concrete block toward the outside; in the daytime, the phase-change gypsum board is subjected to phase-change melting by absorbing the solar radiation energy and then adsorbs the latent heat to improve the thermal inertia of the wall, so that the traditional constant-property thermal insulation materials are replaced or partially replaced when the peak time of the indoor temperature wave is postponed, the heat insulating property of the wall is improved, the action of the external disturbance on the indoor thermal and humid environment is effectively retarded, the running time and the load of air conditioning equipment are decreased, the energy sources are effectively saved and the indoor thermal comfort of the buildings is improved; at night, the phase-change gypsum board releases heat outwards and the heat is changed from liquid to solid so as to realize regeneration. According to the building energy saving and heat preserving method and the hollow block, the structure is simple, the manufacturing is convenient and the energy-saving effect is good.
Description
Technical field
The present invention relates to a kind of energy-saving building technology, thereby especially a kind ofly absorb heat and realize the heat insulation minimizing of external wall external heat indoor width is penetrated to slow down the technology of indoor temperature rise, specifically a kind of building energy conservation heat insulation method and building-block by phase-change material.
Background technology
At present, the conservation measures of the construction wall of China is mainly external insulation, and the heat insulating material of selecting has two shortcomings, the first, and its application life and building are asynchronous.Require the application life of building is 70 years, and is generally 5-10 the application life of heat insulating material.Cause and within the building operating period, just need to regularly replace heat insulating material, can bring thus inconvenience.The second, the part heat insulating material using in engineering can not reach fire protection requirement, thus because of heat insulating material cause fire of common occurrence.For this reason, by adding phase-change material to form energy-storage system, can make the light building material with higher heat capacity in common building material.
Energy-saving and emission-reduction simultaneously have become the main direction of social development, account for 20% of total energy consumption at China's architectural energy consumption, and wherein exceeding 60% is HVAC energy consumption, how to reduce building energy consumption particularly important.If the thickness of simple increase body of wall increases the thermal inertia of body of wall, can greatly increase like this self load bearing of building, increase building costs.From the angle of building energy conservation, very urgent to the research work of phase-change material.Phase-change accumulation energy wallboard is for buildings exterior-protected structure, not only reduce the thermal transmittance of space enclosing structure, and increase the thermal inertia of space enclosing structure, due to the thermal storage effect of phase-change material, certain energy can be emitted or absorb to phase-change material in the time there is thing phase change, thereby the heat amount of disturbing that makes indoor and outdoor produces and postpones and decay while transmission to opposite side by this space enclosing structure, reduces the load of architecture refrigerating or heating equipment, reaches energy-conservation object.
Summary of the invention
The object of the invention is that in use weatherability is poor for the outer insulation construction of the energy-conservation middle use of current body of wall, the problem of poor stability, invent a kind of building energy conservation heat insulation method that can reduce building energy consumption and improve indoor thermal comfort, design a kind of building-block matching simultaneously.
One of technical scheme of the present invention is:
A kind of building energy conservation heat insulation method, it is characterized in that by installing phase transformation gypsum plank additional in the building block of external wall hollow concrete in outdoor one side, this phase transformation gypsum plank undergoes phase transition thawing by absorbing solar radiant energy daytime, absorb latent heat, improve the thermal inertia of body of wall, thereby the peak value moment of realizing the appearance of interior temperature ripple is delayed, replace or partly replace traditional normal physical property heat insulating material, improve body of wall heat-proof quality, effectively slow down the outer effect to Indoor Thermal Environment of disturbing, reduce time and the load of air-conditioning equipment operation, realize effective saving of the energy, improve the thermal comfort of architecture indoor, phase transformation gypsum plank is emitted heat at night to the external world, becomes solid-state by liquid state, realizes regeneration.
Described phase transformation gypsum plank is mixed by capric acid and gypsum, and both mass ratioes are capric acid: land plaster=1:1～2.
Described phase transformation gypsum plank is of a size of length × wide × high=20 × 140 × 190, the mm of unit.
One end that phase transformation gypsum plank is installed in described hollow concrete building block additional adopts concrete sealing, and two surfaces of phase transformation gypsum plank and concrete hole wall surface close contact are to improve heat conduction efficiency.
One of technical scheme of the present invention is:
A kind of energy-saving hollow concrete building block, the center that it is characterized in that described concrete block 1 is provided with some Weight reduction, heat insulating holes 2 along short transverse, at least near adding phase transformation gypsum plank 3 in a round in outside, the described lower end that installs the raw insulation hole 2 of subtracting of gypsum plank 3 additional adopts concrete sealing and forms blind hole and subtract raw insulation hole 2 to prevent that phase transformation energy storage material more from flowing out.
Described phase transformation gypsum plank 3 is mixed by capric acid and gypsum, and both mass ratioes are capric acid: land plaster=1:1～2.
Described phase transformation gypsum plank is of a size of length × wide × high=20 × 140 × 190, the mm of unit.
Beneficial effect of the present invention:
The present invention by placing prefabricated phase transformation gypsum plank in the outermost side opening of the hollow concrete building block of many rounds, and fully contact with building-block is inner, utilize the heat absorption and release characteristic of the phase transition process of phase-change material, form energy-storage system, build the outer interference to indoor thermal environment of disturbing effectively to control, the thermal resistance and the thermal inertia that improve body of wall, improve indoor thermal comfort, reduces building energy consumption.
The present invention is simple, Yi Hang, and cost is low, energy-saving heat preserving successful.
In order to verify that phase transformation body of wall is on the impact of conducting heat, selecting heat producing box is in uniform temp fluctuation situation, and in common body of wall and the corresponding ice chest of phase transformation body of wall, temperature variations contrasts.
In hot case, choose 3 groups of different temperature fluctuations and compare, as shown in table 1.Experiment comparing result is shown in Fig. 1.
The hot the temperature inside the box fluctuation of table 1
| ? | Temperature fluctuation | Average temperature | Temperature amplitude | Temperature cycle |
| Fluctuation a | 16℃~39℃ | 27.5℃ | 11.5 | 24h |
| Fluctuation b | 0℃~67℃ | 33.5℃ | 33.5 | 24h |
| Fluctuation c | -3℃~62℃ | 29.5℃ | 32.5 | 24h |
Phase transformation wall ice chest of the present invention obtains heat than common wall ice chest minimizing in various degree, fluctuation a decay 25.7%, fluctuation b decay 23.3%, fluctuation c decay 33.2%.Illustrate to such an extent that heat decay is relevant with average temperature and the wave amplitude of ambient temperature ripple, when external world fluctuation average temperature and phase-change material average phase change temperature is more approaching, amplitude is larger, obtain heat decay effect better, energy saving is better.
Brief description of the drawings
Fig. 1 is the heat contrast schematic diagram of common wall and phase transformation wall of the present invention.
Fig. 2 is the structural representation of common building-block.
Fig. 3 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further illustrated.
Embodiment mono-.
As Figure 2-3.
A kind of building energy conservation heat insulation method, it comprises the following steps:
First be capric acid, in mass ratio: the ratio of land plaster=1:1～2 is mixed capric acid and land plaster;
Secondly, under normal temperature (being no more than 30 DEG C), the capric acid of mixing and land plaster are put into mould, make and be of a size of the mm of 20 × 140 × 190(unit) phase transformation gypsum plank 3, concrete size designed, designed as required;
The 3rd, adopt conventional method to produce top view hollow concrete building block as shown in Figure 2;
The 4th, hollow concrete building block shown in phase transformation gypsum plank 3 load maps 2 is leaned in the Weight reduction, heat insulating hole 2 of wall outer side, two surfaces of phase transformation gypsum plank and concrete hole wall surface close contact are to improve heat conduction efficiency, as shown in Figure 2, with concrete, the lower end in the Weight reduction, heat insulating hole 2 of plug-in mounting phase transformation gypsum plank 3 is sealed again in case in phase transition process energy storage material flow out, if blind hole is directly cast into in the lower end for the Weight reduction, heat insulating hole of plug-in mounting phase transformation gypsum plank in the building-block shown in Fig. 1 while specifically enforcement, can save shutoff step wherein;
The 5th, with the hollow concrete building block that adds phase transformation gypsum plank 3 as external wall material, phase transformation gypsum plank undergoes phase transition thawing by absorbing solar radiant energy 3 daytimes, absorb latent heat, improve the thermal inertia of body of wall, thereby the peak value moment of realizing the appearance of interior temperature ripple is delayed, replace or partly replace traditional normal physical property heat insulating material, improve body of wall heat-proof quality, effectively slow down the outer effect to Indoor Thermal Environment of disturbing, reduce time and the load of air-conditioning equipment operation, realize effective saving of the energy, improve the thermal comfort of architecture indoor; Phase transformation gypsum plank is emitted heat at night to the external world, becomes solid-state by liquid state, realizes regeneration.
Embodiment bis-.
As shown in Figure 3.
A kind of energy-saving hollow concrete building block, the center of concrete block 1 is provided with some Weight reduction, heat insulating holes 2 along short transverse, at least in a close round in outside, add phase transformation gypsum plank 3, phase transformation gypsum plank 3 is mixed by capric acid and gypsum, and both mass ratioes are capric acid: land plaster=1:1～2.The described lower end that installs the raw insulation hole 2 of subtracting of gypsum plank 3 additional adopts concrete sealing and forms blind hole and subtract raw insulation hole 2 to prevent that phase transformation energy storage material more from flowing out.As shown in Figure 2, the size of phase transformation gypsum plank can be length × wide × high=20 × 140 × 190, the mm of unit.
The part that the present invention does not relate to all prior art that maybe can adopt same as the prior art is realized.
Claims (7)
1. a building energy conservation heat insulation method, it is characterized in that by installing phase transformation gypsum plank additional in the building block of external wall hollow concrete in outdoor one side, this phase transformation gypsum plank undergoes phase transition thawing by absorbing solar radiant energy daytime, absorb latent heat, improve the thermal inertia of body of wall, thereby the peak value moment of realizing the appearance of interior temperature ripple is delayed, replace or partly replace traditional normal physical property heat insulating material, improve body of wall heat-proof quality, effectively slow down the outer effect to Indoor Thermal Environment of disturbing, reduce time and the load of air-conditioning equipment operation, realize effective saving of the energy, improve the thermal comfort of architecture indoor, phase transformation gypsum plank is emitted heat at night to the external world, becomes solid-state by liquid state, realizes regeneration.
2. method according to claim 1, is characterized in that described phase transformation gypsum plank is mixed by capric acid and gypsum, and both mass ratioes are capric acid: land plaster=1:1～2.
3. method according to claim 1, is characterized in that described phase transformation gypsum plank is of a size of length × wide × high=20 × 140 × 190, the mm of unit.
4. method according to claim 1, one end that phase transformation gypsum plank is installed in the hollow concrete building block described in it is characterized in that additional adopts concrete sealing, and two surfaces of phase transformation gypsum plank and concrete hole wall surface close contact are with raising heat conduction efficiency.
5. the hollow concrete building block that described in a claim 1, method is used, the center that it is characterized in that described concrete block (1) is provided with some Weight reduction, heat insulating holes (2) along short transverse, at least near adding phase transformation gypsum plank (3) in a round in outside, the described lower end that subtracts raw insulation hole (2) that installs gypsum plank (3) additional adopts concrete sealing and forms blind hole and subtract raw insulation hole (2) to prevent that phase transformation energy storage material more from flowing out.
6. hollow concrete building block according to claim 5, is characterized in that described phase transformation gypsum plank (3) is mixed by capric acid and gypsum, and both mass ratioes are capric acid: land plaster=1:1～2.
7. method according to claim 5, is characterized in that described phase transformation gypsum plank is of a size of length × wide × high=20 × 140 × 190, the mm of unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410176349.0A CN103938788B (en) | 2014-04-29 | 2014-04-29 | Building energy conservation heat insulation method and holllow building block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410176349.0A CN103938788B (en) | 2014-04-29 | 2014-04-29 | Building energy conservation heat insulation method and holllow building block |
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| Publication Number | Publication Date |
|---|---|
| CN103938788A true CN103938788A (en) | 2014-07-23 |
| CN103938788B CN103938788B (en) | 2016-06-01 |
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| CN201410176349.0A Expired - Fee Related CN103938788B (en) | 2014-04-29 | 2014-04-29 | Building energy conservation heat insulation method and holllow building block |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453076A (en) * | 2014-11-19 | 2015-03-25 | 江苏大学 | Phase-change-material composite hollow building block |
| CN104453065A (en) * | 2014-11-19 | 2015-03-25 | 江苏大学 | Composite building block filled with gypsum-based phase-change materials |
| CN104453078A (en) * | 2014-11-24 | 2015-03-25 | 沈阳建筑大学 | Three-layer phase change insulation block |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201165723Y (en) * | 2008-02-03 | 2008-12-17 | 陈亚光 | Phase-change energy storage composite self-heat preserving building blocks |
| CN202882200U (en) * | 2012-10-27 | 2013-04-17 | 贵州博典建材化工科技有限公司 | Multi-rib type three-cavity composite heat-preservation building block |
| CN103088957A (en) * | 2013-01-17 | 2013-05-08 | 东南大学 | Phase-changing heat preservation composite building block |
-
2014
- 2014-04-29 CN CN201410176349.0A patent/CN103938788B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201165723Y (en) * | 2008-02-03 | 2008-12-17 | 陈亚光 | Phase-change energy storage composite self-heat preserving building blocks |
| CN202882200U (en) * | 2012-10-27 | 2013-04-17 | 贵州博典建材化工科技有限公司 | Multi-rib type three-cavity composite heat-preservation building block |
| CN103088957A (en) * | 2013-01-17 | 2013-05-08 | 东南大学 | Phase-changing heat preservation composite building block |
Non-Patent Citations (2)
| Title |
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| 张正松等: ""相变石膏板应用于外墙表面夏季隔热的相变温度分析"", 《建筑科学》 * |
| 方学旺等: ""夏热冬冷地区相变外墙房间夏季舒适性研究"", 《科学技术与工程》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453076A (en) * | 2014-11-19 | 2015-03-25 | 江苏大学 | Phase-change-material composite hollow building block |
| CN104453065A (en) * | 2014-11-19 | 2015-03-25 | 江苏大学 | Composite building block filled with gypsum-based phase-change materials |
| CN104453078A (en) * | 2014-11-24 | 2015-03-25 | 沈阳建筑大学 | Three-layer phase change insulation block |
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| Publication number | Publication date |
|---|---|
| CN103938788B (en) | 2016-06-01 |
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Granted publication date: 20160601 Termination date: 20180429 |