CN104453065A - Composite building block filled with gypsum-based phase-change materials - Google Patents
Composite building block filled with gypsum-based phase-change materials Download PDFInfo
- Publication number
- CN104453065A CN104453065A CN201410660954.5A CN201410660954A CN104453065A CN 104453065 A CN104453065 A CN 104453065A CN 201410660954 A CN201410660954 A CN 201410660954A CN 104453065 A CN104453065 A CN 104453065A
- Authority
- CN
- China
- Prior art keywords
- phase
- change material
- block
- building block
- blind hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Building Environments (AREA)
Abstract
The invention belongs to the technical field of building materials and discloses a composite building block filled with gypsum-based phase-change materials. A building block body is made from light aggregate concrete; a plurality of vertical rectangular blind holes with the same specifications are formed inside the building block, and all the holes are arranged side by side and are filled with the gypsum-based phase-change materials. According to the composite building block, through reasonably selecting a hole type structure, the mechanical properties of the composite building block can be guaranteed, and the heat accumulation property of the composite building block can be improved; due to the prepared gypsum-based phase-change materials, the filled phase-change materials are not prone to leaking and have good compatibility with a building block main body material, so that the problem of the traditional hollow building blocks that the heat capacity of a wall body is lowered while the heat preservation property is improved is solved; aiming at climatic conditions of different regions, the phase-change materials with large phase-change latent heat and appropriate coefficient of heat conductivity are reasonably selected, so as to exert the optimal performance of the phase-change materials, so that the indoor heat comfort is improved, and the energy consumption of buildings is lowered.
Description
Technical field
The invention belongs to building material technical field, be specifically related to a kind of composite block of filler plaster based phase-change material.
Background technology
Due to the effect of thermal resistance and thermal capacitance, temperature wave and hot-fluid ripple are decayed by producing during architectural exterior-protecting construction and are postponed.At present, architectural exterior-protecting construction adopts traditional organic heat-insulating heat-barrier material to meet the requirement of code of building energy efficiency for thermal resistance of enclosing structure usually.Although these thermal insulation materials have lower thermal conductivity value, effectively can increase the thermal resistance of space enclosing structure, they have potential safety hazard mostly, and application life is limited, and have lower thermal capacitance value.Current building adopts frame construction in a large number, and the body of wall of this structure is called infilled wall, and they are hollow, lightweight or middle matter body of wall mostly, wherein in the majority with concrete holllow building block wall.Hollow, light structures can make the thermal capacitance value of whole body of wall lower, cause wall-body energy saving to produce temperature by a relatively large margin, hot-fluid fluctuation along with the fluctuation of ambient temperature, hot-fluid, thus the fluctuation of aggravation indoor air temperature, reduce indoor comfort degree; Meanwhile, cause the frequent keying of room conditioning or can not keep for a long time running under stationary conditions; Due to air-conditioning equipment startup stage and unsteady-stage conditions run time power consumption higher, substantially increase the energy consumption of air-conditioning system.
Phase-change material has obvious regenerative effect when undergoing phase transition, can absorb or discharge a large amount of latent heat, and oneself variations in temperature own is little.Phase-change material is reasonably applied in hollow concrete block wall, fluctuations in indoor temperature can be made more steady, thus improve the energy consumption of indoor comfort degree, reduction air-conditioning system.Current, more existing scholars, engineer adopt way phase-change material being added building-block, to improve the thermal capacitance value of external wall; But, they depend on the design experiences of conventional hollow building block to a great extent to the design of phase-change material composite block inner structure form, the thermal property influence factor of the building-block of composite phase-change material is not systematically analyzed, there is many unreasonable factors in this phase-change material composite block just making design obtain, can not give play to the characteristics and advantages of phase-change material in higher level on material selection, Groove Design and climate adaptability.
Summary of the invention
The present invention is the composite block in order to provide a kind of filler plaster based phase-change material, with solve traditional lightweight concrete hollow block owing to improving heat-insulating property, the thermal capacitance of external wall is reduced and mechanical property deficiency, solve the unreasonable factor of existing phase-change material composite hollow building block in configuration and materials'use and cause the problems such as the thermal property of composite block can not better play, thus improve the thermal comfort of architecture indoor, reduce architectural complex energy consumption.
For achieving the above object, filler plaster based phase-change material composite block of the present invention can adopt following technical scheme:
A composite block for filler plaster based phase-change material,
Arrange 5 ~ 7 vertical rectangle blind holes in described block body, described each blind hole specification is identical and be arranged side by side, and the long side direction in hole is consistent with block thickness direction;
Described block body adopts light aggregate concrete, and the seat slurry thickness of described blind via bottom is 5mm ~ 15mm, and equal filler plaster based phase-change material in described blind hole.
When the quantity of described blind hole (2) is even number, the interporal lacuna between the blind hole of block body (1) center two is a, the width of two limit ribs is respectively b, c, described a=b=c on building block length direction; Interporal lacuna between all the other each blind holes is d, and the width of Shang Liangge limit, block thickness direction rib is respectively e, f, described d=e=f; Described a/d=5:4 ~ 3:2.
When the quantity of described blind hole (2) is odd number, the interporal lacuna between block body (1) central blind hole and both sides blind hole is g, and on building block length direction, the width of two limit ribs is respectively m, n, described g=m=n; Interporal lacuna between all the other each blind holes is p, and the width of Shang Liangge limit, block thickness direction rib is respectively h, i; Described p=h=i; Described g/p=a/d=5:4 ~ 3:2.
The bulk material of composite block, according to local conditions, is selected flyash-haydite concrete, shale dreg concrete, pumice stone concrete, rock wool concrete, expanded perlite concrete or is mixed with the concrete of other heat insulating material with suiting measures to local conditions.
According to the difference of location weather conditions, phase-change material in this composite block is also different, and they are Disodium sulfate decahydrate (severe cold area), six hydration dinitric acid zinc (cold district, hot summer and warm winter region), disodium hydrogen phosphate dodecahydrate (hot-summer and cold-winter area), n-octadecane (temperate zone) respectively; These phase-change materials all have higher latent heat of phase change, and coefficient of thermal conductivity is all in 0.3 Wm
-1k
-1~ 0.7 Wm
-1k
-1in scope, be conducive to the performance of phase-change material performance.
According to required total latent heat amount, the difference of namely required phase-change material amount, can make land plaster and phase-change material be that in the scope of 10:2 to 10:8, water mixing Homogeneous phase mixing makes gypsum base composite phase-change material at mass ratio.
Compared with the prior art, the beneficial effect of filler plaster based phase-change material composite block of the present invention and the reason that tells on are:
1, by vertical for the several rectangular openings in building block, be arranged side by side, the phase-change material that can be in hot-fluid access aperture provides 6 ~ 8 paths, be conducive to phase-change material store fully and discharge the hot-fluid through building-block, improve the service efficiency of phase-change material in composite block, thus advantageously in the comfort level improving architecture indoor, reduce building energy consumption.
2, increase the width of composite block middle rib and limit rib, ensure that building-block has enough mechanical properties.
3, select the phase-change material with different phase transition temperature according to the difference of location weather conditions, phase-change material used is mated more with the excursion of location boundary temperature, is conducive to the thermal property playing phase-change material to the full extent.When the transition temperature range of phase-change material is on the low side relative to the excursion of location boundary temperature, the phase-change material used can not solidify being in liquid condition for a long time; Otherwise when the transition temperature range of phase-change material is higher, the phase-change material used can not melt being in solid state for a long time; Above two kinds of situations all better can not play the accumulation of energy characteristic of phase-change material, and its effect is had a greatly reduced quality, so the excursion of phase-change material used and location boundary temperature should be made to match, just can give full play to the thermal property of phase-change material.
4, selected phase-change material all has higher latent heat of phase change, and coefficient of thermal conductivity is all in 0.3 Wm
-1k
-1to 0.7 Wm
-1k
-1in scope, make the thermal property that blockwork reaches best; When phase-change material coefficient of thermal conductivity is less, because the coefficient of thermal conductivity of block body material is relatively large, most hot-fluid can via rib structure by blockwork, and in the phase-change material in access aperture, can not be unfavorable for the performance of phase-change material performance; And when phase-change material coefficient of thermal conductivity is larger, although the problem before not existing, this can make the thermal resistance value of blockwork diminish, so just have more hot-fluid to enter blockwork, this also can reduce the thermal property of blockwork; (0.3 Wm is in when the coefficient of thermal conductivity of phase-change material is of moderate size
-1k
-1~ 0.7 Wm
-1k
-1time in scope), the generation of above two kinds of phenomenons can be suppressed to the full extent, make the thermal property that blockwork reaches best.
Accompanying drawing explanation
The structural representation that Fig. 1 is filler plaster based phase-change material composite block blind hole number of the present invention when being even number.
The structural representation that Fig. 2 is filler plaster based phase-change material composite block blind hole number of the present invention when being odd number.
Description of reference numerals is as follows: 1-block body, 2-blind hole.
Detailed description of the invention
Below in conjunction with accompanying drawing and specific embodiment, the present invention is further illustrated, but protection scope of the present invention is not limited to this.
As shown in Figure 1, be the composite block of filler plaster based phase-change material, comprise the blind hole (2) of block body (1) and the filler plaster based phase-change material be made up of light aggregate concrete.Composite block is of a size of length × thick × high 390mm × 190mm × 190mm, and hollow rate is 24.9%.Interporal lacuna between the blind hole of block body (1) center two is a, width b, c of two limit ribs is 40mm on building block length direction, and the interporal lacuna of all the other each blind holes is the width e of d and Shang Liangge limit, block thickness direction rib, f is 30mm.
Described block body (1) is flyash-haydite concrete, shale dreg concrete, pumice stone concrete, rock wool concrete, expanded perlite concrete or be mixed with the concrete of other heat insulating material; blind hole (2) totally six; all the vertical rectangle blind holes being of a size of 25mm × 130mm × 180mm; six holes are arranged side by side, and the seat slurry thickness of blind via bottom is 10mm.
Phase-change material used in blind hole (2) hole is reasonably selected for the weather conditions of different regions, and they are Disodium sulfate decahydrate (severe cold area), six hydration dinitric acid zinc (cold district, hot summer and warm winter region), disodium hydrogen phosphate dodecahydrate (hot-summer and cold-winter area), n-octadecane (temperate zone) respectively.
The gypsum base phase-change material filled adopts land plaster to compare Homogeneous phase mixing with phase-change material according to quality, mixed proportion scope is between 10:2 and 10:8, be mixed into appropriate water stirring again and make gypsum base phase-change material, and this gypsum base phase-change material is filled into the interior postforming grade of six holes (2) of building block.
Described embodiment is preferred embodiment of the present invention; but the present invention is not limited to above-mentioned embodiment; when not deviating from flesh and blood of the present invention, any apparent improvement that those skilled in the art can make, replacement or modification all belong to protection scope of the present invention.
Claims (7)
1. the composite block of a filler plaster based phase-change material, comprise block body (1), it is characterized in that: arrange 5 ~ 7 vertical rectangle blind holes (2) in described block body (1), described each blind hole (2) specification is identical and be arranged side by side, and the long side direction in hole is consistent with block thickness direction;
Described block body (1) adopts light aggregate concrete, and the seat slurry thickness of described blind hole (2) bottom is 5mm ~ 15mm, and equal filler plaster based phase-change material in described blind hole (2).
2. the composite block of filler plaster based phase-change material according to claim 1, it is characterized in that: when the quantity of described blind hole (2) is even number, interporal lacuna between the blind hole of block body (1) center two is a, the width of two limit ribs is respectively b, c, described a=b=c on building block length direction; Interporal lacuna between all the other each blind holes is d, and the width of Shang Liangge limit, block thickness direction rib is respectively e, f, described d=e=f; Described a/d=5:4 ~ 3:2.
3. the composite block of filler plaster based phase-change material according to claim 1, it is characterized in that: when the quantity of described blind hole (2) is odd number, interporal lacuna between block body (1) central blind hole and both sides blind hole is g, on building block length direction, the width of two limit ribs is respectively m, n, described g=m=n; Interporal lacuna between all the other each blind holes is p, and the width of Shang Liangge limit, block thickness direction rib is respectively h, i; Described p=h=i;
Described g/p=a/d=5:4 ~ 3:2.
4. the composite block of filler plaster based phase-change material according to claim 1, is characterized in that: the hollow rate of described composite block is 20.2% ~ 29.9%.
5. the composite block of filler plaster based phase-change material according to claim 1, is characterized in that: the light aggregate concrete that block body (1) adopts is flyash-haydite concrete, shale dreg concrete, pumice stone concrete, rock wool concrete, expanded perlite concrete or be mixed with the concrete of other heat insulating material.
6. the composite block of filler plaster based phase-change material according to claim 1, it is characterized in that: the gypsum base phase-change material of filling in described blind hole (2) is: land plaster and phase-change material according to mass ratio 10:2-10:8 Homogeneous phase mixing, then mix appropriate water stirring and make gypsum base phase-change material.
7. the composite block of the filler plaster based phase-change material according to claim 1 and 6, is characterized in that: the phase-change material kind of described employing is chosen as: severe cold area selects Disodium sulfate decahydrate, cold district, hot summer and warm winter region to select six hydration dinitric acid zinc, hot-summer and cold-winter area to select disodium hydrogen phosphate dodecahydrate, temperate zone selection n-octadecane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410660954.5A CN104453065A (en) | 2014-11-19 | 2014-11-19 | Composite building block filled with gypsum-based phase-change materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410660954.5A CN104453065A (en) | 2014-11-19 | 2014-11-19 | Composite building block filled with gypsum-based phase-change materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104453065A true CN104453065A (en) | 2015-03-25 |
Family
ID=52899756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410660954.5A Pending CN104453065A (en) | 2014-11-19 | 2014-11-19 | Composite building block filled with gypsum-based phase-change materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104453065A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735550A (en) * | 2016-02-05 | 2016-07-06 | 襄垣县同济建材有限责任公司 | Coal gangue sintering hole injection composite high-heat-prevention hollow building block and manufacturing method thereof |
| CN107675830A (en) * | 2017-10-11 | 2018-02-09 | 安徽恒创环保建材有限公司 | Soundproof construction tile assembly |
| CN110984460A (en) * | 2019-12-02 | 2020-04-10 | 上海模卡建筑工程科技发展有限公司 | Composite heat-insulation building block hole pattern design method and composite heat-insulation building block |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2915983Y (en) * | 2005-12-15 | 2007-06-27 | 东华大学 | Thermal-insulating wall body materials containing phase change materials |
| CN201165723Y (en) * | 2008-02-03 | 2008-12-17 | 陈亚光 | Phase-change energy storage composite self-heat preserving building blocks |
| CN101892722A (en) * | 2010-07-21 | 2010-11-24 | 安徽程氏建材有限公司 | Self-temperature-adjusting phase change energy storage energy-saving building block |
| CN102251621A (en) * | 2011-05-25 | 2011-11-23 | 宝鸡市兴源新型建材有限公司 | Energy-saving building material capable of realizing phase-change energy storage by utilizing solar energy |
| CN103938788A (en) * | 2014-04-29 | 2014-07-23 | 南京工业大学 | Building energy-saving heat-insulating method and hollow building block |
-
2014
- 2014-11-19 CN CN201410660954.5A patent/CN104453065A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2915983Y (en) * | 2005-12-15 | 2007-06-27 | 东华大学 | Thermal-insulating wall body materials containing phase change materials |
| CN201165723Y (en) * | 2008-02-03 | 2008-12-17 | 陈亚光 | Phase-change energy storage composite self-heat preserving building blocks |
| CN101892722A (en) * | 2010-07-21 | 2010-11-24 | 安徽程氏建材有限公司 | Self-temperature-adjusting phase change energy storage energy-saving building block |
| CN102251621A (en) * | 2011-05-25 | 2011-11-23 | 宝鸡市兴源新型建材有限公司 | Energy-saving building material capable of realizing phase-change energy storage by utilizing solar energy |
| CN103938788A (en) * | 2014-04-29 | 2014-07-23 | 南京工业大学 | Building energy-saving heat-insulating method and hollow building block |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735550A (en) * | 2016-02-05 | 2016-07-06 | 襄垣县同济建材有限责任公司 | Coal gangue sintering hole injection composite high-heat-prevention hollow building block and manufacturing method thereof |
| CN107675830A (en) * | 2017-10-11 | 2018-02-09 | 安徽恒创环保建材有限公司 | Soundproof construction tile assembly |
| CN110984460A (en) * | 2019-12-02 | 2020-04-10 | 上海模卡建筑工程科技发展有限公司 | Composite heat-insulation building block hole pattern design method and composite heat-insulation building block |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Song et al. | Review on building energy performance improvement using phase change materials | |
| Zhu et al. | A review on applications of shape-stabilized phase change materials embedded in building enclosure in recent ten years | |
| Meng et al. | Preparation and thermal performance of phase change material (PCM) foamed cement used for the roof | |
| CN103088957A (en) | Phase-changing heat preservation composite building block | |
| CN105649234A (en) | Phase-change particle aggregate composite assembly type lightweight wall and preparation method | |
| CN104453076A (en) | Phase-change-material composite hollow building block | |
| CN104453077A (en) | Phase change heat insulation composite hollow building block | |
| CN104453065A (en) | Composite building block filled with gypsum-based phase-change materials | |
| CN204356923U (en) | Nested type phase-transition heat-preserving integrated board | |
| CN102268239A (en) | Temperature-self-adjusting and phase-change energy storage material and preparation method thereof | |
| CN106639125A (en) | Self-warm-keeping composite aerated block | |
| Elhamy et al. | Phase Change Materials Integrated Into the Building Envelope to Improve Energy Efficiency and Thermal Comfort | |
| CN205046703U (en) | Insulation wall | |
| CN205046748U (en) | Heat -preserving brick | |
| CN103938788B (en) | Building energy-saving heat-insulating method and hollow building block | |
| CN203361379U (en) | Rigid foam polyurethane composite board with phase-change material cladding inside | |
| CN100540502C (en) | A kind of thermal insulation concrete hollow block and preparation method thereof | |
| CN203404879U (en) | Buried pipe water-source heat pump type air-conditioning system provided with closed type cooling tower | |
| JP3173242U (en) | Wall structure in buildings | |
| Rucevskis et al. | Numerical Study of Application of PCM for a Passive Thermal Energy Storage System for Space Cooling in Residential Buildings | |
| CN203866991U (en) | Heat insulation plate for building | |
| CN209623006U (en) | A kind of embedded tubular radiation cooling phase-changing wall | |
| CN205399739U (en) | Compound assembled lightweight wall of phase transition granule aggregate | |
| CN204753953U (en) | Heat preservation type polyurethane concrete block | |
| CN211502982U (en) | Composite phase change energy storage wall system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |
|
| WD01 | Invention patent application deemed withdrawn after publication |