CN109668347A - Classifying porous passive type radiation-cooled structure and cooling means based on biological plastics - Google Patents
Classifying porous passive type radiation-cooled structure and cooling means based on biological plastics Download PDFInfo
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- CN109668347A CN109668347A CN201910050582.7A CN201910050582A CN109668347A CN 109668347 A CN109668347 A CN 109668347A CN 201910050582 A CN201910050582 A CN 201910050582A CN 109668347 A CN109668347 A CN 109668347A
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- Prior art keywords
- layer
- heat
- coolant
- cellulose acetate
- cooled
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- 238000001816 cooling Methods 0.000 title claims abstract description 21
- 239000004033 plastic Substances 0.000 title claims abstract description 13
- 229920003023 plastic Polymers 0.000 title claims abstract description 13
- 239000002826 coolant Substances 0.000 claims abstract description 52
- 229920002301 cellulose acetate Polymers 0.000 claims abstract description 30
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000002243 precursor Substances 0.000 claims abstract description 14
- 238000000926 separation method Methods 0.000 claims abstract 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 15
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 3
- 229920002678 cellulose Polymers 0.000 claims description 3
- 239000001913 cellulose Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000013618 particulate matter Substances 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims description 2
- 229920006221 acetate fiber Polymers 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B23/00—Machines, plants or systems, with a single mode of operation not covered by groups F25B1/00 - F25B21/00, e.g. using selective radiation effect
- F25B23/003—Machines, plants or systems, with a single mode of operation not covered by groups F25B1/00 - F25B21/00, e.g. using selective radiation effect using selective radiation effect
Abstract
The invention discloses a kind of classifying porous passive type radiation-cooled structure and cooling means based on biological plastics: cellulose acetate is dissolved in acetone, after being completely dissolved, adds pure water, referred to as precursor solution；Precursor solution is put into container, acetone evaporated, and cellulose acetate and water separation form the different micropore of diameter in cellulose acetate, form coolant layer；Coolant layer is attached to heat-transfer matcrial layer surface；One layer of plate of material with high transparency is covered on coolant layer, as covering layer；Heat-insulated cavity layer is formed between coolant layer and covering layer；Heat-transfer matcrial layer, coolant layer, heat-insulated cavity layer and covering layer constitute passive type radiation-cooled structure, and heat-transfer matcrial layer is contacted with cooled body, and covering layer is exposed to outdoor, guarantee that over and around is unobstructed as far as possible.The present invention can provide passive cooling for certain occasions and equipment, play cooling effect.
Description
Technical field
The present invention relates to cooling field, more specifically, it relates to a kind of classifying porous passive type based on biological plastics
Radiation-cooled structure and cooling means.
Background technique
Currently, many fields need to cool down, such as building, military project, electronics, mechanical equipment etc..Building works as outdoor temperature
Gao Shi needs air-conditioning temperature-reducing；In the case where no air-conditioning, cooled down using electric fan or water evaporation.In machinery equipment field, if
Heat can be distributed after received shipment row, temperature height will affect equipment operating efficiency to a certain extent, it is necessary to cool down.
The occasion of active means can not be used at these or for energy conservation, cooling work can be played using the present invention
With.
Summary of the invention
It is big or the problem of active refrigeration can not be used the purpose of the present invention is to solve energy consumption for cooling, it is certain fields
It closes and equipment provides a kind of classifying porous passive type radiation-cooled structure and cooling means based on biological plastics, can be certain
Occasion and equipment provide passive cooling, play cooling effect.
The purpose of the present invention can be achieved through the following technical solutions.
The present invention is based on the classifying porous passive type radiation-cooled structures of biological plastics, are made of combined material layer, described
Combined material layer is set to outside cooled body, the combined material layer include the heat-transfer matcrial layer set gradually from the inside to the outside,
Coolant layer, heat-insulated cavity layer and covering layer, the heat-transfer matcrial layer give the heat transfer of cooled body to coolant layer,
The coolant layer is made of classifying porous cellulose acetate material layer, heat is launched in the form of infrared ray, together
When sunlight that transmission is come in is reflected back, the covering layer is for protecting coolant layer, and between coolant layer
A cavity is formed, as heat-insulated cavity layer, the heat-insulated cavity layer is for preventing the heat transfer of external environment from coming in.
The production method of the coolant layer: a certain proportion of cellulose acetate is dissolved in acetone, to acetic acid fibre
After dimension element is completely dissolved, add the pure water of suitable proportion, referred to as precursor solution；Precursor solution is put into container, acetone evaporated,
Cellulose acetate and water are separated, the different micropore of diameter is formed in cellulose acetate, forms coolant layer.
The covering layer uses the plate of material of high transparency, such as PE plate, PC plate or TPX plate.
The purpose of the present invention can be also achieved through the following technical solutions.
The present invention is based on the classifying porous passive types of biological plastics to radiate cooling means, comprising the following steps:
Step 1: a certain proportion of cellulose acetate is dissolved in acetone, after cellulose acetate is completely dissolved, add suitable
The pure water of composition and division in a proportion example, referred to as precursor solution；
Step 2: precursor solution is put into container, due to acetone evaporated, separate cellulose acetate and water, in acetic acid
The different micropore of diameter is formed in cellulose, forms coolant layer；
Coolant layer is attached to heat-transfer matcrial layer surface by third step, and the two comes into full contact with, and being conducive to heat-transfer matcrial layer will
Heat is transmitted to coolant layer；
Step 4: covering one layer of plate of material with high transparency on coolant layer, as covering layer, air is prevented
In particulate matter it is blocking microporous；
5th step, forms a closed cavity between coolant layer and covering layer, inside is filled air or argon gas or taken out true
Sky forms heat-insulated cavity layer, and to increase thermal resistance, the heat for reducing external environment is transmitted to cooled body；
6th step, above-mentioned heat-transfer matcrial layer, coolant layer, heat-insulated cavity layer and covering layer constitute passive type radiation cooling
Structure contacts passive type radiation-cooled structure by heat-transfer matcrial layer with cooled body, and covering layer is exposed to outdoor, protects as far as possible
It is unobstructed over and around card, so that coolant layer launches the heat of the cooled body of absorption in the form of infrared ray,
The sunlight that transmission is come in is reflected back simultaneously, prevents heating of the sunlight to cooled body.
Compared with prior art, the beneficial effects brought by the technical solution of the present invention are as follows:
(1) heat-transfer matcrial layer comes into full contact with cooled body in the present invention, gives the heat transfer of cooled body to cooling material
The bed of material；Coolant layer will be launched in the form of infrared ray by heat, while reflected sunlight.
(2) present invention prevents solar radiant heat from passing through group using the classifying porous cellulose acetate reflected sunlight formed
It closes structure and enters cooled body；Using the high IR line emission characteristics of cellulose acetate by the heat of cooled body with infrared ray
Form is launched, and cooling is played the role of.
(3) heat-insulated cavity layer is prevented in the incoming cooled body of external environment heat using biggish thermal resistance in the present invention.
(4) temperature of cooled body can be reduced to outside air temperature hereinafter, both having solved without active by the present invention
Cooling problem in the case of cooling equipment, and energy conservation can be realized when there is refrigeration equipment, it is that the following energy conservation and temperature are adjusted
Important means.
Detailed description of the invention
Fig. 1 is the principle of the present invention figure.
Appended drawing reference: 1 cooled body, 2 heat-transfer matcrial layers, 3 coolant layers,
4 heat-insulated cavity layers, 5 covering layers.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, with reference to the accompanying drawing to embodiment of the present invention
It does and is further described in detail.
As shown in Figure 1, the present invention is based on the classifying porous passive type radiation-cooled structures of biological plastics, by combined material layer
It constitutes, the combined material layer is set to outside cooled body 1, and the combined material layer includes the biography set gradually from the inside to the outside
Hot material layer 2, coolant layer 3, heat-insulated cavity layer 4 and covering layer 5.The heat-transfer matcrial layer 2 sufficiently connects with cooled body 1
Touching reduces the heat transfer resistance of heat-transfer matcrial layer 2 and cooled body 1 as far as possible, gives the heat transfer of cooled body 1 to coolant layer
3, aluminium, zinc or copper material can be used in heat-transfer matcrial layer 2.The covering layer 5 uses the plate of material of high transparency, such as PE plate, PC
Plate or TPX plate etc. for protecting coolant layer 3, and form a cavity, as heat-insulated cavity between coolant layer 3
Layer 4.Air, argon gas can be filled in the heat-insulated cavity layer 4 or is vacuumized, as far as possible increase heat transfer resistance, prevent the heat of external environment
Amount transmitting is come in.
The coolant layer 3 is made of classifying porous cellulose acetate material layer, by the heat of cooled body 1 with infrared
The form of line is launched, while the sunlight that transmission is come in being reflected back.Wherein, cellulose acetate itself has high IR
Emissivity, by reverse phase synthesis formed inside cellulose acetate many apertures not of uniform size (aperture concentrate on 0.2 μm and
5.5 μm), these apertures have very high reversed heat dissipation to the direct projection and scattering of sunlight.This coolant 3 and cooled body 1
Combination, can not only reflect away 95% or more solar radiant heat, prevent solar radiant heat from heating cooled body 1.Moreover,
The heat of cooled body 1 can pass to this coolant layer 3, and coolant layer 3 utilizes the high emissivity of infrared ray itself, will
Heat is emitted in the universe of only 3K (subzero 272 DEG C) in the form of infrared ray by 8-13 microns of atmospheric window, thus
Have the function that reduce by 1 temperature of cooled body.
The production method of the coolant layer 3: a certain proportion of cellulose acetate is dissolved in acetone, to acetic acid fibre
After dimension element is completely dissolved, add the pure water with weight such as cellulose acetates, referred to as precursor solution；Put precursor solution into container
Interior, acetone evaporated separates cellulose acetate and water, and the different micropore of diameter is formed in cellulose acetate, formed with a thickness of
400 microns or more of coolant layer 3.
The present invention is based on the classifying porous passive types of biological plastics to radiate cooling means, and detailed process is as follows:
Step 1: a certain proportion of cellulose acetate is dissolved in acetone, after cellulose acetate is completely dissolved, add suitable
The pure water of composition and division in a proportion example, referred to as precursor solution.Wherein, the weight of pure water and cellulose acetate are equal in weight.
Step 2: precursor solution is put into container, due to acetone evaporated, separate cellulose acetate and water, in acetic acid
The different micropore of diameter is formed in cellulose, forms coolant layer 3.
Coolant layer 3 is attached to 2 surface of heat-transfer matcrial layer by third step, and the two comes into full contact with, and is conducive to heat-transfer matcrial layer
Heat is transmitted to coolant layer 3 by 2.
Step 4: covering one layer of plate of material (such as PE plate, PC plate or TPX plate with high transparency on coolant layer 3
Deng), as covering layer 5, prevent the fine particulates in air blocking microporous.
5th step, 3 layers of coolant form a closed cavity between covering layer 5, and air or argon gas or pumping are filled in inside
Vacuum forms heat-insulated cavity layer 4, and to increase thermal resistance, the heat for reducing external environment is transmitted to cooled body.
6th step, above-mentioned heat-transfer matcrial layer 2, coolant layer 3, heat-insulated cavity layer 4 and covering layer 5 constitute passive type radiation
Cooling structure contacts passive type radiation-cooled structure by heat-transfer matcrial layer 2 with cooled body 1, and covering layer is exposed to outdoor,
It is unobstructed over and around guaranteeing as far as possible, so that coolant layer 3 sends out the heat of the cooled body 1 of absorption in the form of infrared ray
It is shot out, while the sunlight that transmission is come in being reflected back, prevent heating of the sunlight to cooled body.
Although function and material of the invention are described above in conjunction with attached drawing, the invention is not limited to above-mentioned
Concrete function and material requirements, above-mentioned embodiment is only schematical, rather than restrictive, this field it is common
Technical staff under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, may be used also
By make it is many in the form of, all of these belong to the protection of the present invention.
Claims (4)
1. a kind of classifying porous passive type radiation-cooled structure based on biological plastics, is made of, the combination combined material layer
It is external that material layer is set to cooled body (1), which is characterized in that the combined material layer includes the biography set gradually from the inside to the outside
Hot material layer (2), coolant layer (3), heat-insulated cavity layer (4) and covering layer (5), the heat-transfer matcrial layer (2) will be cooled
The heat transfer of body (1) is given coolant layer (3), and the coolant layer (3) is by classifying porous cellulose acetate material layer structure
At, heat is launched in the form of infrared ray, while by transmission come in sunlight reflect back, the covering layer (5)
For protecting coolant layer (3), and a cavity is formed between coolant layer (3), as heat-insulated cavity layer (4), institute
Heat-insulated cavity layer (4) are stated for preventing the heat transfer of external environment from coming in.
2. the classifying porous passive type radiation-cooled structure according to claim 1 based on biological plastics, which is characterized in that
The production method of the coolant layer (3): a certain proportion of cellulose acetate is dissolved in acetone, complete to cellulose acetate
After fully dissolved, add the pure water of suitable proportion, referred to as precursor solution；Precursor solution is put into container, acetone evaporated makes acetic acid
Cellulose and water separation, form the different micropore of diameter in cellulose acetate, are formed coolant layer (3).
3. the classifying porous passive type radiation-cooled structure according to claim 1 based on biological plastics, which is characterized in that
The covering layer (5) uses the plate of material of high transparency, such as PE plate, PC plate or TPX plate.
4. a kind of classifying porous passive type based on biological plastics radiates cooling means, which comprises the following steps:
Step 1: a certain proportion of cellulose acetate is dissolved in acetone, after cellulose acetate is completely dissolved, add suitable ratio
The pure water of example, referred to as precursor solution；
Step 2: precursor solution is put into container, due to acetone evaporated, separate cellulose acetate and water, in acetate fiber
The different micropore of diameter is formed in element, is formed coolant layer (3)；
Coolant layer (3) is attached to heat-transfer matcrial layer (2) surface by third step, and the two comes into full contact with, and is conducive to heat-transfer matcrial layer
(2) heat is transmitted to coolant layer (3)；
Step 4: covering one layer of plate of material with high transparency on coolant layer (3), as covering layer (5), prevent empty
Particulate matter in gas is blocking microporous；
5th step forms a closed cavity between coolant layer (3) and covering layer (5), air or argon gas or pumping are filled in inside
Vacuum forms heat-insulated cavity layer (4), and to increase thermal resistance, the heat for reducing external environment is transmitted to cooled body；
6th step, above-mentioned heat-transfer matcrial layer (2), coolant layer (3), heat-insulated cavity layer (4) and covering layer (5) constitute passive type
Radiation-cooled structure is contacted passive type radiation-cooled structure by heat-transfer matcrial layer (2), covering layer (5) with cooled body (1)
Be exposed to outdoor, guarantee as far as possible over and around it is unobstructed so that coolant layer (3) is by the warm of the cooled body (1) of absorption
Amount is launched in the form of infrared ray, while the sunlight that transmission is come in being reflected back, and sunlight is prevented to add cooled body
Heat.
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| CN201910050582.7A CN109668347A (en) | 2019-01-19 | 2019-01-19 | Classifying porous passive type radiation-cooled structure and cooling means based on biological plastics |
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| CN201910050582.7A CN109668347A (en) | 2019-01-19 | 2019-01-19 | Classifying porous passive type radiation-cooled structure and cooling means based on biological plastics |
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Family
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| CN201910050582.7A Pending CN109668347A (en) | 2019-01-19 | 2019-01-19 | Classifying porous passive type radiation-cooled structure and cooling means based on biological plastics |
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| CN114892417A (en) * | 2022-04-22 | 2022-08-12 | 浙江理工大学 | Textile containing daytime radiation refrigeration porous coating and preparation method and application thereof |
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Application publication date: 20190423 |