CN103788930A - Method for wrapping phase transition paraffin - Google Patents

Method for wrapping phase transition paraffin Download PDF

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Publication number
CN103788930A
CN103788930A CN201210427719.4A CN201210427719A CN103788930A CN 103788930 A CN103788930 A CN 103788930A CN 201210427719 A CN201210427719 A CN 201210427719A CN 103788930 A CN103788930 A CN 103788930A
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CN
China
Prior art keywords
paraffin
phase change
change paraffin
phase transition
container
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
Application number
CN201210427719.4A
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Chinese (zh)
Inventor
孙爱民
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YANTAI RONGDA REAL ESTATE Co Ltd
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YANTAI RONGDA REAL ESTATE Co Ltd
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Publication date
Application filed by YANTAI RONGDA REAL ESTATE Co Ltd filed Critical YANTAI RONGDA REAL ESTATE Co Ltd
Priority to CN201210427719.4A priority Critical patent/CN103788930A/en
Publication of CN103788930A publication Critical patent/CN103788930A/en
Pending legal-status Critical Current

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Abstract

The invention provides a method for wrapping phase transition paraffin. The method comprises the following steps: 1) placing the phase transition paraffin in a container, and melting at 50-100 DEG C; 2) adding a porous building material into the container, fully mixing the porous building material with the phase transition paraffin, sealing the container, pressurizing to 1-10 mPa, mixing the phase transition paraffin with the porous building material for 0.5-2 h, and cooling to room temperature; 3) crushing the mixture of paraffin and the porous building material into particles with diameter of 1-2 mm; and 4) completely mixing the crushed particles with cement pulp according to a weight ratio of 1:3-1:8. The porous structure of the porous building material applies high capillary force and high surface tension on the adsorbed paraffin molecules, so that the liquid paraffin molecules are hard to effuse in the phase transition process of the paraffin and gain good stability. The method solves the problem of the poor stability of phase transition paraffin in building materials of the prior art.

Description

A kind of method of wrapping up phase change paraffin
Technical field
The present invention relates to phase change paraffin energy storage material, refer to especially a kind of method of wrapping up phase change paraffin.
Background technology
Phase-changing energy storage material is that to utilize himself phase-state change be to be accompanied by the absorption of energy or the characteristic of release realizes energy storage and a thermoregulator class material.Paraffin is the most frequently used solid-liquid phase change material, it has obviously surfusion, non-corrosiveness of latent heat of phase change high (150kJ/kg~250kJ/kg), nothing, concrete phase transition process is: when envrionment temperature is during higher than transformation temperature, absorbed store heat, to reduce envrionment temperature; When envrionment temperature is during lower than transformation temperature, material discharges the heat storing, to improve envrionment temperature.As in the winter time, phase change paraffin energy storage material absorbs sun power daytime, and night, release of heat heated; In summer, waste heat in phase-changing energy storage material absorption chamber, reduces room temp.Because phase change paraffin material has in phase transition process, heat is stored in to self or discharges the performance to environment with the form of latent heat, thereby can be applied in building, make the impact of external temperature and hot-fluid fluctuation weakened, room temp is controlled in comfortable scope.
At present, the method for parcel phase change paraffin energy storage material in material of construction mainly contains infusion method, microcapsule method, the paraffin wax phase change energy storage material poor stability that adopts direct infusion method to prepare, and after repeatedly using, paraffin leaks seriously, and thermal storage performance obviously declines.Although microcapsule method preferably resolves the leakage problem of whiteruss, its complicated process of preparation, production cost is high, and easily aging, the burning of organic cyst material, and these factors have all limited its large-scale practical application.
Summary of the invention
The present invention proposes a kind of method of wrapping up phase change paraffin, has solved the problem of phase change paraffin poor stability in material of construction in prior art.
Technical scheme of the present invention is achieved in that a kind of method of wrapping up phase change paraffin, comprises step:
1) phase change paraffin is positioned in container, at 50~100 ℃ of temperature, melts;
2) in described container, add porous construction material, and mix completely with described phase change paraffin, then described container sealing, and be forced into 1~10mpa, described phase change paraffin mixes 0.5~2 hour with described porous construction material, after be cooled to normal temperature;
3) mixture of described phase change paraffin and described porous construction material is pulverized, after pulverizing, the diameter of particle is 1~2mm;
4) be that 1:3~1:8 mix completely with grout according to weight ratio by the particle after above-mentioned pulverizing.
As preferred technical scheme, described phase change paraffin is that 1:2~1:6 mixes with described porous construction material according to weight ratio.
As further preferred, described phase change paraffin is that 1:4 mixes with described porous construction material according to weight ratio.
As preferred technical scheme, described porous construction material is a kind of or several arbitrarily in perlite, shale, gypsum, graphite.
As further preferred, described porous construction material is perlite.
As preferred technical scheme, the particle after described pulverizing is that 1:5 mixes completely with described grout according to weight ratio.
Perlite inside is cellular porous short texture, between Kong Yukong, is spaced from each other, and hole wall is thin and smooth, and after perlite absorption phase change paraffin, wide variation have occurred its microscopic appearance.The hole of perlite inside is filled completely by phase change paraffin substantially, himself become secret room particle, thereby make phase change paraffin leakage in phase transition process few, there is good stability, trace it to its cause is mainly that perlitic vesicular structure makes the paraffin molecule being adsorbed by it be subject to high capillary force and high surface tension effects, make liquid paraffin molecule be difficult to ooze out, thereby make phase change paraffin/perlite there is satisfactory stability.
Owing to adopting technique scheme, a kind of method of wrapping up phase change paraffin, comprises step: 1) phase change paraffin is positioned in container, at 50~100 ℃ of temperature, melts; 2) in described container, add porous construction material, and mix completely with described phase change paraffin, then described container sealing, and be forced into 1~10mpa, described phase change paraffin mixes 0.5~2 hour with described porous construction material, after be cooled to normal temperature; 3) mixture of described phase change paraffin and described porous construction material is pulverized, after pulverizing, the diameter of particle is 1~2mm; 4) be that 1:3~1:8 mix completely with grout according to weight ratio by the particle after above-mentioned pulverizing, adopt porous construction material, the vesicular structure of material of construction makes the paraffin molecule being adsorbed by it be subject to high capillary force and high surface tension effects, make liquid paraffin molecule be difficult to ooze out, make phase change paraffin leakage in phase transition process few, there is good stability, solved the problem of phase change paraffin poor stability in material of construction in prior art.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is a kind of method process flow sheet that wraps up phase change paraffin of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, a kind of method of wrapping up phase change paraffin, comprises step:
1) phase change paraffin is positioned in container, at 50~100 ℃ of temperature, melts;
2) in container, add porous construction material, and mix completely with phase change paraffin, then container sealing, and be forced into 1~10mpa, phase change paraffin mixes with porous construction material 0.5~2 hour, after be cooled to normal temperature;
3) mixture of phase change paraffin and porous construction material is pulverized, after pulverizing, the diameter of particle is 1~2mm;
4) be that 1:3~1:8 mix completely with grout according to weight ratio by the particle after above-mentioned pulverizing.
Due to perlitic porous loose structure, phase change paraffin is had to good adsorptivity, under wicking action and capillary effect, liquid paraffin is difficult to infiltrate from its microvoid structure, thereby efficiently solve the liquid flow problem of paraffin in the time that heat accumulation is applied, improve its stability, therefore material of construction adopts perlite.
Embodiment mono-:
Phase change paraffin and perlite are that 1:2 takes according to weight ratio, first 1 part of phase change paraffin is positioned in container, at 50~100 ℃ of temperature, melt, in backward container, add 2 parts of perlites, and mix completely with phase change paraffin, then container sealing, and be forced into 1~10mpa, 1 part of phase change paraffin mixes 0.5~2 hour with 2 parts of perlites, after be cooled to normal temperature, phase change paraffin and perlitic mixture are pulverized, and after pulverizing, the diameter of particle is 1~2mm, is finally that 1:3 mix completely with grout according to weight ratio by the particle after pulverizing.
Embodiment bis-:
Phase change paraffin and perlite are that 1:4 takes according to weight ratio, first 1 part of phase change paraffin is positioned in container, at 50~100 ℃ of temperature, melt, in backward container, add 4 parts of perlites, and mix completely with phase change paraffin, then container sealing, and be forced into 1~10mpa, 1 part of phase change paraffin mixes 0.5~2 hour with 4 parts of perlites, after be cooled to normal temperature, phase change paraffin and perlitic mixture are pulverized, and after pulverizing, the diameter of particle is 1~2mm, is finally that 1:5 mix completely with grout according to weight ratio by the particle after pulverizing.
Embodiment tri-:
Phase change paraffin and perlite are that 1:6 takes according to weight ratio, first 1 part of phase change paraffin is positioned in container, at 50~100 ℃ of temperature, melt, in backward container, add 6 parts of perlites, and mix completely with phase change paraffin, then container sealing, and be forced into 1~10mpa, 1 part of phase change paraffin mixes 0.5~2 hour with 6 parts of perlites, after be cooled to normal temperature, phase change paraffin and perlitic mixture are pulverized, and after pulverizing, the diameter of particle is 1~2mm, is finally that 1:8 mix completely with grout according to weight ratio by the particle after pulverizing.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (6)

1. a method of wrapping up phase change paraffin, is characterized in that, comprises step:
1) phase change paraffin is positioned in container, at 50~100 ℃ of temperature, melts;
2) in described container, add porous construction material, and mix completely with described phase change paraffin, then described container sealing, and be forced into 1~10mpa, described phase change paraffin mixes 0.5~2 hour with described porous construction material, after be cooled to normal temperature;
3) mixture of described phase change paraffin and described porous construction material is pulverized, after pulverizing, the diameter of particle is 1~2mm;
4) be that 1:3~1:8 mix completely with grout according to weight ratio by the particle after above-mentioned pulverizing.
2. a kind of method of wrapping up phase change paraffin as claimed in claim 1, is characterized in that: described phase change paraffin is that 1:2~1:6 mixes with described porous construction material according to weight ratio.
3. a kind of method of wrapping up phase change paraffin as claimed in claim 2, is characterized in that: described phase change paraffin is that 1:4 mixes with described porous construction material according to weight ratio.
4. a kind of method of wrapping up phase change paraffin as claimed in claim 3, is characterized in that: described porous construction material is a kind of or several arbitrarily in perlite, shale, gypsum, graphite.
5. a kind of method of wrapping up phase change paraffin as claimed in claim 4, is characterized in that: described porous construction material is perlite.
6. a kind of method of wrapping up phase change paraffin as claimed in claim 1, is characterized in that: the particle after described pulverizing is that 1:5 mixes completely with described grout according to weight ratio.
CN201210427719.4A 2012-10-31 2012-10-31 Method for wrapping phase transition paraffin Pending CN103788930A (en)

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Application Number Priority Date Filing Date Title
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106085366A (en) * 2016-06-13 2016-11-09 河南大学 Phase-change material, light phase transition honeycomb concrete plate and preparation method thereof
CN107265947A (en) * 2017-06-29 2017-10-20 安徽理工大学 The massive concrete and its construction technology of a kind of anti-thermal cracking
CN109124865A (en) * 2018-10-09 2019-01-04 上海暖友实业有限公司 A kind of constant temperature phase transformation sheet type spontaneous heating body and preparation method thereof
CN109912986A (en) * 2019-03-05 2019-06-21 中国工程物理研究院化工材料研究所 A kind of wax class aggregation and preparation method thereof of carbons powder thickening
CN110305635A (en) * 2019-07-19 2019-10-08 天津工业大学 A kind of forming heat accumulating and preparation method thereof

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CN1690008A (en) * 2004-04-30 2005-11-02 宁波荣山新型材料有限公司 Heat-insulating mortar for external wall of building
CN101104550A (en) * 2006-07-14 2008-01-16 宁波荣山新型材料有限公司 Building wall phase change energy-storage type polymer thermal insulating mortar and preparation method thereof
CN101348708A (en) * 2008-09-17 2009-01-21 中国建筑材料科学研究总院 Preparation of organic inorganic composite phase-change material
CN101555119A (en) * 2009-05-21 2009-10-14 北京虹霞正升涂料有限责任公司 Plastering mortar used for wall surface enclose structure of building

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JPS62148587A (en) * 1985-12-23 1987-07-02 Matsushita Electric Works Ltd Production of heat storage material
CN1690008A (en) * 2004-04-30 2005-11-02 宁波荣山新型材料有限公司 Heat-insulating mortar for external wall of building
CN101104550A (en) * 2006-07-14 2008-01-16 宁波荣山新型材料有限公司 Building wall phase change energy-storage type polymer thermal insulating mortar and preparation method thereof
CN101348708A (en) * 2008-09-17 2009-01-21 中国建筑材料科学研究总院 Preparation of organic inorganic composite phase-change material
CN101555119A (en) * 2009-05-21 2009-10-14 北京虹霞正升涂料有限责任公司 Plastering mortar used for wall surface enclose structure of building

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李海建等: "石蜡/膨胀珍珠岩复合相变材料的制备", 《中国建材科技》 *
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106085366A (en) * 2016-06-13 2016-11-09 河南大学 Phase-change material, light phase transition honeycomb concrete plate and preparation method thereof
CN106085366B (en) * 2016-06-13 2020-01-21 河南大学 Phase-change material, light phase-change honeycomb concrete plate and preparation method thereof
CN107265947A (en) * 2017-06-29 2017-10-20 安徽理工大学 The massive concrete and its construction technology of a kind of anti-thermal cracking
CN109124865A (en) * 2018-10-09 2019-01-04 上海暖友实业有限公司 A kind of constant temperature phase transformation sheet type spontaneous heating body and preparation method thereof
CN109912986A (en) * 2019-03-05 2019-06-21 中国工程物理研究院化工材料研究所 A kind of wax class aggregation and preparation method thereof of carbons powder thickening
CN110305635A (en) * 2019-07-19 2019-10-08 天津工业大学 A kind of forming heat accumulating and preparation method thereof

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