CN106836522A - One kind self-regulation phase transformation Te Langbei walls - Google Patents
One kind self-regulation phase transformation Te Langbei walls Download PDFInfo
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- CN106836522A CN106836522A CN201710116680.7A CN201710116680A CN106836522A CN 106836522 A CN106836522 A CN 106836522A CN 201710116680 A CN201710116680 A CN 201710116680A CN 106836522 A CN106836522 A CN 106836522A
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- 230000009466 transformation Effects 0.000 title claims abstract description 103
- 230000007704 transition Effects 0.000 claims abstract description 34
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 26
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 26
- 239000012188 paraffin wax Substances 0.000 claims abstract description 24
- 238000009413 insulation Methods 0.000 claims abstract description 21
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 19
- 239000010439 graphite Substances 0.000 claims abstract description 19
- 239000004567 concrete Substances 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000009423 ventilation Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 239000005439 thermosphere Substances 0.000 claims description 2
- 241000937378 Everettia interior Species 0.000 claims 1
- 238000009825 accumulation Methods 0.000 abstract description 20
- 238000013021 overheating Methods 0.000 abstract description 4
- 239000012071 phase Substances 0.000 description 112
- 239000012782 phase change material Substances 0.000 description 43
- 238000004513 sizing Methods 0.000 description 22
- 230000008859 change Effects 0.000 description 18
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- 238000005265 energy consumption Methods 0.000 description 6
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- 238000005516 engineering process Methods 0.000 description 5
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B2001/742—Use of special materials; Materials having special structures or shape
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Acoustics & Sound (AREA)
- Building Environments (AREA)
Abstract
The invention discloses one kind self-regulation phase transformation Te Langbei walls, include glassy layer (1), air layer (2), the first phase transformation wall layers (3), first thermal insulation layer (4), concrete wall layer (5), second thermal insulation layer (6) and the second phase transformation wall layers (7) successively from outside to inside, wherein, the phase transition temperature of the first phase transformation wall layers (3) is 27 DEG C~29 DEG C;The phase transition temperature of the second phase transformation wall layers (7) is 17 DEG C~19 DEG C;First phase transformation wall layers (3) and the second phase transformation wall layers (7) are obtained by melt blending treatment by including the raw material including high density polyethylene (HDPE), expanded graphite and paraffin.Structure and its set-up mode, the set-up mode of ventilating opening and on off state switching condition that the present invention passes through the heat accumulation wall crucial to its etc. is improved, heat supply not enough and over-heating in summer problem when can effectively solve the problem that Te Langbei wall winters are without the sun compared with prior art.
Description
Technical field
The invention belongs to residential construction area, more particularly, to one kind self-regulation phase transformation Te Langbei walls, can be applied to
The field such as civil buildings heating and air conditioner energy saving, Solar use, greening building energy saving, selective model.
Background technology
In global energy consumption, building field account for about 40%, and it is 60% to be wherein used for cooling, heating accounting.
Under the double influence of energy and environment, energy-saving building technology is of increasing concern, and the passive wall systems of wherein Te Langbei are due to it
Good energy-saving effect gets the attention.Traditional Te Langbei walls are used for heat supply in winter, but when there is winter without the sun
Heat supply is not enough and over-heating in summer problem, limits its energy-saving potential and application.
Te Langbei walls are that a kind of passive type solar energy utilizes system.This wall is generally made by stone, brick or concrete etc.
Into with very big thermal inertia.Usual wall is brushed into black, is immediated vicinity installed in apart from glass, so in glass and wall
Between be formed an air layer.Te Langbei walls absorb solar radiation, while also partial heat passes through between wall and glass
Air layer incoming building in the way of free convection.The solar radiation that face of wall absorbs is by the very big wall of thermal resistance with heat conduction
Mode lentamente pass to inner surface, then the incoming interior by way of radiation or convection current.Generally in the heat accumulation wall of painted black
On have two openings, be open by the two, air can flow between air layer and interior.
Thermal characteristics, energy-saving potential, thermal comfort of Te Langbei walls etc. are extensively studied.It is special in existing technology
Bright Bei Qiang is used for civil buildings heating, and solar energy, cloudy day or night are absorbed by air layer and stored when daytime is sunny
Heat is discharged during without sunlight.Te Langbei walls can reduce the energy-output ratio of annual heating, while the heat that can improve interior is relaxed
Adaptive, energy-saving effect is notable.But in summer, Te Langbei walls may cause indoor overheating.Te Langbei walls are general in existing technology
Winter is served only for, thermic load is still reduced by traditional external sunshade mode in summer.Another part is studied by changing heat accumulation
Wall and the different switching modes of bezel upper shed attempt to improve its annual applicability, as a result show to make with summer in the winter time
With different opening combinations patterns it can be made to be played a role in whole year really.But because the regulation of various combination mode needs
It is manually operated, in environmental change, it is impossible to which regulation in time in place, while need special messenger to operate, therefore limits it and uses.This is
First limitation of prior art.
Be can see from above-mentioned introduction, Te Langbei walls can realize thermal storage performance of the energy-saving effect mainly due to wall.
The thermal capacity size of wall directly influences the effect size of Te Langbei walls, and then influences its energy-efficient performance.In traditional Te Langbei
In wall system, because it belongs to sensible heat energy storage, therefore to ensure that the quantity of heat storage of wall will use very thick wall.Which also limits spy
The use of bright Bei Qiang.To solve this problem, it is considered to use hidden heat energy storage.Typically latent heat storage is carried out in building using phase-change material
Energy.The conventional phase-change material of building energy saving field is divided into organic phase change material and inorganic phase-changing material according to chemical composition.It is inorganic
Phase-change material includes some hydrated salts, and thermal storage density is big, and phase transition temperature is cheap near room temperature.It but was susceptible to
Cold and precipitation phenomenon, unstable properties, while corrosion may be produced to container.And organic phase change material (including paraffin class and
Aliphatic acid etc.), with latent heat of phase change higher, without supercooling and precipitation phenomenon, stable performance is nontoxic, non-corrosiveness, and price is just
Preferably, therefore it is highly suitable for building energy saving field.
In existing research, it has therefore already been proposed that phase-change material is applied in Te Langbei walls to improve its energy saving
Energy.There is research and compare different phase-change materials in Te Langbei wall systems, using inorganic salts as phase-change material, but
Solution is not given for inorganic salts encapsulation and specific species.Also research is said by mathematical analysis and analog simulation
Effect of the bright phase-change material in Te Langbei walls.But these researchs all do not provide specific application form, do not solve yet
The encapsulation problem of PCM, therefore be not suitable for actually used.The container that another some research is done using aluminium as phase-change material envelope
Packaging container, is placed on phase-change material inner surface or the outer surface of wall.Although this mode have found method for packing, but due to
Use a kind of phase-change material (only one of which phase transition temperature), it is impossible to played a role with summer in the winter time.This is prior art
Second limitation.
The content of the invention
It is special it is an object of the invention to provide one kind self-regulation phase transformation for the disadvantages described above or Improvement requirement of prior art
Bright shellfish wall, wherein by the structure and its set-up mode of the heat accumulation wall crucial to its, the set-up mode of ventilating opening and switch shape
State switching condition etc. is improved, when can effectively solve the problem that Te Langbei wall winters are without the sun compared with prior art heat supply it is not enough and
The problem of over-heating in summer, realizes the self-regulation to indoor temperature;And several classes that the self-regulation phase transformation Te Langbei walls are used
The temperature value that ventilating opening its on off state can be detected according to multiple temperature sensors automatically switches, and realizes automatically adjusting, and has
Effect avoids the inconvenience that manual operation is brought.
To achieve the above object, it is proposed, according to the invention, there is provided one kind self-regulation phase transformation Te Langbei walls, it is characterised in that
Self-regulation phase transformation Te Langbei walls include glassy layer (1), air layer (2), the first phase transformation wall layers (3), the successively from outside to inside
One thermal insulation layer (4), concrete wall layer (5), second thermal insulation layer (6) and the second phase transformation wall layers (7), wherein,
The phase transition temperature of the first phase transformation wall layers (3) is 27 DEG C~29 DEG C;First phase transformation wall layers (3) is by including height
Density polyethylene, expanded graphite and first kind paraffin process what is obtained in interior raw material by melt blending, wherein described
The phase transition temperature of first kind paraffin is 27 DEG C~29 DEG C;
The phase transition temperature of the second phase transformation wall layers (7) is 17 DEG C~19 DEG C;Second phase transformation wall layers (7) is by including height
Density polyethylene, expanded graphite and Equations of The Second Kind paraffin process what is obtained in interior raw material by melt blending, wherein described
The phase transition temperature of Equations of The Second Kind paraffin is 17 DEG C~19 DEG C;
Additionally, the glassy layer (1) for outdoor environment directly contact;The second phase transformation wall layers (7) for room
Interior environment directly contact.
Used as present invention further optimization, the thickness of the air layer (2) is 0.1m~0.2m;First PCM wallboard
The thickness of layer (3) is 0.02m~0.04m;The thickness of the first thermal insulation layer (4) is 0.05~0.1m;The concrete wall
The thickness of layer (5) is 0.24~0.36m;The thickness of the second thermal insulation layer (6) is 0.05m~0.1m;Second PCM wallboard
The thickness of layer (7) is 0.02m~0.04m.
As present invention further optimization, for the first phase transformation wall layers (3), the high density polyethylene (HDPE) this
Mass percent in one PCM wallboard is 15%~20%, and mass percent of the expanded graphite in first PCM wallboard is
0~5%;For the second phase transformation wall layers (7), mass percent of the high density polyethylene (HDPE) in the second phase transformation wall layers
It is 15%~20%, mass percent of the expanded graphite in the second phase transformation wall layers is 0~5%.
Used as present invention further optimization, the self-regulation phase transformation Te Langbei walls are arranged on the south, the self-regulation phase
Become Te Langbei walls perpendicular to the ground;And it is additionally provided with Beijing Foreign Language Studies University on the north relative with the self-regulation phase transformation Te Langbei walls
Wall, the self-regulation phase transformation Te Langbei walls and the Beijing Foreign Language Studies University wall and top board, other metopes, surround formation together with ground
Space is the interior space;
First kind ventilating opening (V1) is provided with the glassy layer (1);The first phase transformation wall layers (3), described first every
It is respectively provided with thermosphere (4), concrete wall layer (5), the second thermal insulation layer (6) and the second phase transformation wall layers (7)
There are Equations of The Second Kind ventilating opening (V2) and the 3rd class ventilating opening (V3), distance of the Equations of The Second Kind ventilating opening (V2) away from ground is more than described
Distance of the 3rd class ventilating opening (V3) away from ground;The 4th class ventilating opening (V4) is provided with the Beijing Foreign Language Studies University wall;
The first kind ventilating opening (V1), the Equations of The Second Kind ventilating opening (V2) and the 4th class ventilating opening (V4) with ground
Projection on the perpendicular any straight line in face coincides;The first kind ventilating opening (V1), the Equations of The Second Kind ventilating opening
(V2), be respectively arranged with switch on the 3rd class ventilating opening (V3) and the 4th class ventilating opening (V4), for switch this
One class ventilating opening (V1), the Equations of The Second Kind ventilating opening (V2), the 3rd class ventilating opening (V3) and the 4th class ventilating opening (V4)
The state of Push And Release;
Additionally, being additionally provided with the first temperature sensor (PT1), second temperature sensor (PT2) and the 3rd TEMP
Device (PT3), wherein, first temperature sensor (PT1) is located in the air layer (2), for detecting the air layer (2)
Temperature;The second temperature sensor (PT2) is located in the interior space, the temperature for detecting the interior space;
The three-temperature sensor (PT3) is located outside, and the three-temperature sensor (PT3) is used to detect the temperature of outdoor;
First temperature sensor (PT1), the second temperature sensor (PT2) and the three-temperature sensor
(PT3) with the first kind ventilating opening (V1), the Equations of The Second Kind ventilating opening (V2), the 3rd class ventilating opening (V3), described
The switch of the 4th class ventilating opening (V4) is connected respectively, and the temperature value for being obtained according to detection switches the state of each switch;Note
The temperature value that first temperature sensor (PT1) detects is T1, the temperature that the second temperature sensor (PT2) detects
It is T to be worth2, the temperature value that the three-temperature sensor (PT3) detects is T3, then
When outdoor is for winter,
Work as T1>T2When, the state that the Equations of The Second Kind ventilating opening (V2) and the 3rd class ventilating opening (V3) are out is described
First kind ventilating opening (V1) and the 4th class ventilating opening (V4) are the state of closing;
Work as T1<T2When, the first kind ventilating opening (V1), the Equations of The Second Kind ventilating opening (V2), the 3rd class ventilating opening
And the 4th class ventilating opening (V4) is the state of closing (V3);
When outdoor is for summer,
Work as T3<T2When, the ventilation of the first kind ventilating opening (V1), the Equations of The Second Kind ventilating opening (V2) and the 4th class
The state that mouth (V4) is out, the 3rd class ventilating opening (V3) is the state closed;
Work as T3>T2When, the first kind ventilating opening (V1), the Equations of The Second Kind ventilating opening (V2), the 3rd class ventilating opening
And the 4th class ventilating opening (V4) is the state of closing (V3).
Used as present invention further optimization, described other metopes include eastern exterior wall and western exterior wall;The top board is roof.
As present invention further optimization, the most short distance of top board described in the Edge Distance of the Equations of The Second Kind ventilating opening (V2)
From being 0.2m;The beeline on the Edge Distance ground of the 4th class ventilating opening (V4) is 0.2m;Preferably, the top board away from
Distance from the ground is 3m.
Used as present invention further optimization, the first kind ventilating opening (V1) is 3 rectangles, the length side of the rectangle
To parallel to ground, the rectangle width direction is perpendicular to ground;The length of any one of rectangle is 0.5m, and width is
0.3m。
Used as present invention further optimization, the Equations of The Second Kind ventilating opening (V2) is 3 rectangles, the length side of the rectangle
To parallel to ground, the rectangle width direction is 0.5m perpendicular to ground, the length of any one of rectangle, and width is
0.3m;
The 3rd class ventilating opening (V3) is 3 rectangles, and the length direction of the rectangle is parallel to ground, and the rectangle is wide
Perpendicular to ground, the length of any one of rectangle is 0.5m, and width is 0.3m in degree direction;
The 4th class ventilating opening (V4) is 3 rectangles, and the length direction of the rectangle is parallel to ground, and the rectangle is wide
Perpendicular to ground, the length of any one of rectangle is 0.5m, and width is 0.3m in degree direction.
Used as present invention further optimization, first temperature sensor (PT1) is for detecting the air layer (2)
Middle-range temperature from the ground at 2m positions;The second temperature sensor (PT2) is for detecting distance in the interior space
Temperature at the 2m positions of ground.
By the contemplated above technical scheme of the present invention, compared with prior art, due to (i.e. right in sensible heat energy-storage wall
Answer concrete wall layer) inside and outside two surfaces be respectively provided with the different sizing PCM wall of phase transition temperature, formation possesses double-deck fixed
The heat accumulation wall construction body of type phase-change material plate;By the present invention in that being made the sizing of different phase transition temperatures of the paraffin of different melting points
Phase-change material plate, can meet the summer outdoor conditions different with winter and indoor temperature demand.Phase transformation wall layers (including the first phase
Become wall layers and the second phase transformation wall layers) it is to be passed through by including the raw material including high density polyethylene (HDPE), expanded graphite and paraffin
Melt blending treatment is obtained, and its medium high density polyethylene is that, used as backing material, expanded graphite is that, used as additive, paraffin is then
As main body phase-change material, by controlling the mass percent of high density polyethylene (HDPE), expanded graphite, paraffin three, wherein highly dense
(especially 15%, degree polyethylene, the mass percent of both expanded graphites are preferably controlled to 15%~20%, 0~5% respectively
5%, the mass percent of expanded graphite is preferably that at least 3%), surplus is to correspond to paraffin, both ensure that phase transformation wall layers its
The effect of hidden heat energy storage, can be effectively ensured phase-change material and undergo phase transition front and rear packaged stability again.
The present invention by controlling the thickness of each structure sheaf of the self-regulation phase transformation Te Langbei walls, and by the self-regulation phase
7 structure sheafs of change Te Langbei walls (including glassy layer, air layer, the first phase transformation wall layers, first thermal insulation layer, concrete wall layer,
Second thermal insulation layer and the second phase transformation wall layers) overall co-ordination so that phase transformation Te Langbei walls can be realized to indoor temperature
Automatically adjust, so as to realize the actual demand cool in summer and warm in winter to house indoor temperature.Additionally, the present invention is also by control first
The specific proportioning of various component materials in phase transformation wall layers, the second phase transformation wall layers, on the one hand both can ensure that PCM wall had good
Sizing, on the other hand, be engaged further through the thickness parameter with phase transformation wall layers, can effectively control the latent of each phase transformation wall layers
Hot energy storage total amount, it is ensured that to the regulating effect of certain area indoor environment temperature;For example, note self-regulation phase transformation Te Langbei walls
Length direction is space length direction, and short transverse is spatial altitude direction, and the length of the interior space is equal to self-regulation phase transformation spy
The length of bright shellfish wall, the height of the interior space is equal to the height of self-regulation phase transformation Te Langbei walls, if ignoring self-regulation phase transformation
The thickness of Te Langbei walls, the phase transformation Te Langbei walls that are self-regulated in the present invention are applicable to meet the interior space of following condition:No more than (4/3) *
Self-regulation phase transformation Te Langbei walls in the present invention, are a kind of Te Langbei walls with bilayer sizing phase change structure.
Consider the application characteristic of Te Langbei walls, the sizing phase-change material plate of different qualities is set up separately two inside and outside concrete walls
Side.The technology compared with prior art, can be used in whole year, realize the active regulation to indoor temperature, reduce building energy consumption,
Simultaneously compact conformation, strong applicability, be easy to manufacture and later maintenance, significantly reduce thickness of wall body.Due to sizing phase-change material plate
It is easily installed and safeguards, the transformation and spread for being thus suitable for existing Te Langbei wall systems is used.
Phase transition temperature phase-change material plate higher is affixed on the outside of heat accumulation wall, for summer;Solar radiation is added by glass
Hot air layer, when air layer temperature is higher than its phase transition temperature, it is liquid that phase-change material is progressively melted by solid-state, absorbs heat
Fluctuations in indoor temperature is reduced, the power consumption of cold supply system thus can be reduced.The relatively low phase-change material plate of phase transition temperature is affixed on heat accumulation wall
Inner side, for winter;Equally, solar radiation heats air layer by glass, when the temperature of the phase-change material plate is higher than its phase
During temperature, phase-change material is progressively changed into liquid from solid-state, and the heat absorption unnecessary by daytime simultaneously stores, when indoor temperature reduction
And when causing the temperature of internal layer sizing phase-change material plate less than its phase transition temperature, phase-change material discharges heat by settable liquid, by
This reduces fluctuations in indoor temperature, and reduces the energy consumption of heating system.
Current existing phase transformation Te Langbei walls are mainly used in winter heating, and minority is used for summer ventilation, it is impossible to which whole year improves
Indoor thermal environment.The present invention by setting the first phase change layer and the second phase change layer, and by the first phase change layer and the second phase change layer
Phase transition temperature is controlled as (28 ± 1) DEG C, (18 ± 1) DEG C so that the self-regulation phase transformation Te Langbei walls can adapt to difference
Weather (such as Chinese five kinds of different climatic provinces), realizes and outdoor climate efficient association.For example, in severe cold and cold district,
The phase transition temperature of the first phase change layer is approached with the average dry-bulb temperature in the outdoor of this area;Xia Redong is cold, hot summer and warm winter zone and gentle
Area, the phase transition temperature of the first phase change layer is approached with the average wet-bulb temperature in the outdoor of this area;And the phase alternating temperature of the second phase change layer
Degree also with heating when indoor design temperature approach so that the double-deck phase transformation Te Langbei walls annual can improve indoor thermal environment;The
One phase change layer can be coupled with summer ventilation heat extraction, and the second phase change layer can be coupled with winter heat-collection and heat-accumulation, and based on to room
The requirement of interior thermal environment comfort level, temperature sensor is set by each ventilating opening, air blanketing and indoor and outdoor, can be according to interior
The folding for changing control valve at any time of outer weather, realizes self-regulation operation.
On the other hand, the present invention is set by the heat accumulation wall and bezel in Te Langbei wall systems, on Beijing Foreign Language Studies University wall
Different openings, sets valve on opening, and adds automatic control system to control the on off state of each valve to realize spy
The whole year of bright Bei Qiang uses.In summer and winter, it is given full play to by the combination of different height, different size of opening
Energy-saving effect, realizes that its whole year is applicable.Meanwhile, by automatic control system, in the case where outdoor environmental conditions change, can be with
The state of each opening is automatically adjusted, suitable combination is selected, it is ensured that indoor thermal comfort, save manpower.
According to the present invention, respectively in heat accumulation wall upper and lower part, the top of bezel and room Beijing Foreign Language Studies University wall upper shed,
Motor-driven valve is filled on opening controls it to open and close;Temperature in use sensor measures the temperature of different parts simultaneously.By temperature
The temperature that degree sensor is measured, using the motor in certain control method control valve, and then controls opening for each valve
Off status reaches the different operational modes of system.Thus, it is possible to all realize energy-conservation using Te Langbei walls in summer and winter
Purpose, simultaneously because addition is automatically controlled, can realize self-regulation, make the system more intelligent.
In general, the present invention passes through using thermal capacitance phase transformation Light Wall higher, while setting ventilating opening uses corresponding
Control method enables that the self-regulation phase transformation Te Langbei walls realize that whole year uses;The contemplated above technical scheme of the present invention
Compared with prior art, have many good qualities.First, because the sizing phase-change material plate using different qualities sets up separately in heat accumulation within the walls
Outer both sides, increase the heat storage capacity of heat accumulation wall, reduce the thickness of wall, improve the performance of Te Langbei wall systems;Meanwhile, use
Two-layer phase-change material plate makes it to be played a role in season in summer in winter two, effectively reduces fluctuations in indoor temperature, improves thermal comfort, together
When, reduce building heat supplying, cooling energy consumption.Second, due to using different ventilating openings and addition automatic control system, making Te Lang
Bei Qiang is no longer limited to use in the winter time, improves its annual applicability;The addition of automatic control system simultaneously makes entirely
System can select suitable service condition according to the change of external environment, give full play to the energy-saving potential of Te Langbei walls, right
It is significant in building energy conservation.Therefore, under the comprehensive function of above-mentioned technical merit, new Te Langbei walls proposed by the invention
Excellent performance, it is easy to operate, be easy to safeguard with transformation, and the energy-saving potential of Te Langbei walls can be made full use of, compared to existing skill
Art, can save more building energy consumptions.
Brief description of the drawings
Fig. 1 is phase transformation Te Langbei wall construction schematic diagrames;
Fig. 2 is the left view detail drawing of phase transformation Te Langbei walls;
Fig. 3 is the enlarged diagram of phase transformation Te Langbei walls.
The implication of each reference is as follows in figure:
1 is low-E glass (specification can be 6+9A+6low-E, and thickness can be 0.021m);2 is that (thickness can for air layer
Think 0.2m);3 is outer layer sizing PCM wall (that is, the first phase transformation wall layers, thickness can be 0.03m);4 is outer thermal insulation layer
(that is, first thermal insulation layer, thickness can be 0.05m);5 is concrete wall (thickness can be 0.24m);6 is inner insulating layer
(that is, second thermal insulation layer, thickness can be 0.05m);7 is that (that is, the second phase transformation wall layers, thickness can be with for internal layer sizing PCM wall
It is 0.03m);PT1 is the sensor (suspension type, i.e. the first temperature sensor) for measuring air layer temperature;PT2 is in measuring chamber
The sensor (that is, second temperature sensor) of temperature;PT3 is the sensor (that is, three-temperature sensor) for measuring outdoor temperature;
V1 is ventilating opening (that is, first kind ventilating opening) on glass;V2 is PCM wallboard overdraught mouthful (that is, Equations of The Second Kind ventilating opening);V3 is
PCM wallboard leg space ventilation mouthful (that is, the 3rd class ventilating opening);V4 is Beijing Foreign Language Studies University wall vent mouthful (that is, the 4th class ventilating opening).
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as additionally, technical characteristic involved in invention described below each implementation method
Not constituting conflict each other can just be mutually combined.
Embodiment 1
Self-regulation phase transformation Te Langbei walls in the present invention, its heat accumulation wall construction body includes outer sizing phase successively from outside to inside
Become wallboard layer 3, first thermal insulation layer 4, wall the 5, second thermal baffle layer 6 of layer and interior sizing PCM wall layer 7.Wherein, outer sizing phase
Become the sizing phase-change material that wallboard layer 3 and interior sizing PCM wall layer 7 are used, be to use paraffin as phase-change material, it is highly dense
Degree polyethylene is used as encapsulating material, while adding expanded graphite to improve its heat conductivility.
Fig. 1 is the Te Langbei walls with phase-change material according to present invention construction.In figure, 1 is low-E glass, and 2 is air
Layer, 3 is the sizing phase-change material plate of 28 DEG C of phase transition temperature, and 4 is normal concrete wall, and 5 is sizing that phase transition temperature is 18 DEG C
Phase-change material plate.This example considers to be used in China's hot-summer and cold-winter area, therefore Te Langbei walls are arranged on the south, and remaining exterior wall spreads
If heat-insulation layer.Room-sized length × width × height is 3.0m × 3.0m × 3.0m in considering this example, is opened on PCM wallboard different height
Ventilating opening, up and down each three:Lower openings apart from floor 0.2m, upper opening apart from ceiling 0.2m, size be 0.5m ×
0.3m;Beijing Foreign Language Studies University wall equally opens air port in the place apart from ceiling 0.2m, and ventilating opening size is same as described above.Another this example glass
Using low-e glass, three ventilating openings are equally opened in glass top apart from the place of ceiling 0.2m, and size is 0.5m × 0.3m,
Another above-mentioned ventilating opening uses electrically operated valve.Distance (i.e. the thickness of air layer 2) is 0.2m between glass and heat accumulation wall in this example.
In this example temperature survey use PT100 temperature sensors, indoors and the liftoff plate 2m of air layer middle-range place suspension temperature
Sensor collecting temperature, same outdoor temperature is also measured by temperature sensor.
Additionally, the phase-change material in this example uses high density polyethylene (HDPE) as backing material, expanded graphite as additive
And paraffin, used as main body phase-change material, each raw material quality percentage is high density polyethylene (HDPE):Expanded graphite:Paraffin is
15%:5%:80%.The sizing phase-change material plate is made using melt-blending process, and the sizing phase-change material size being made is 0.3m
× 0.3m × 0.01m (is attached, so as to form phase transformation wall layers polylith being shaped by way of phase transformation block mutually splices;Separately
Outward, sizing phase transformation block can also as needed cut into smaller fritter).PCM wallboard is divided into 5 layers, and outer layer is main in the summer
The phase-change material for playing a role in season, its phase transition temperature is 28 DEG C;Internal layer is the main phase-change material for playing a role in the winter time, its phase
Temperature is 18 DEG C (according to phase transition temperature of phase-change material, it is adaptable to hot-summer and cold-winter area).By constructing this " sandwich "
Wall, mutually should be able to the mating reaction within whole year.
Next, being explained for the running status in summer and winter with reference to this example.Each parameter physical significance sees below
Table:
Winter:Daytime, intensity of solar radiation was big, and solar radiation is got in by glass.Work as T1>T2When (T1、T2It is right respectively
PT1, PT2 detect the temperature for obtaining in answering Fig. 1), open V2And V3.Due to solar radiation, the air in air layer is heated, temperature
Degree rises, and density reduces, and hot-air is flowed up;After reaching room top, hot-air is entered by the ventilating opening in Heat Storing Wall
Interior, heating indoor air.After discharging heat in the room, the air of temperature drop by the ventilating opening of heat accumulation wall bottom again
In air inlet layer.Thus, a circulation is formed, air is constantly heated by this circulation in air layer, to indoor confession
Heat, heightens indoor temperature.Meanwhile, temperature (corresponds to T in air layer1) more than 18 DEG C when, in heat accumulation wall phase transition temperature be 18 DEG C
Phase-change material undergo phase transition, liquid is changed into from solid-state, absorb heat and be simultaneously stored in wherein.Due to phase-change accumulation energy and common sensible heat
Energy storage is bigger compared to quantity of heat storage, therefore, when daytime, intensity of solar radiation was very big, the Te Langbei walls in this example can store more
Energy.And to evening, solar radiation reduction, when air layer temperature is gradually decrease to below 18 DEG C, phase-change material is by liquid
State gradually solidifies, and discharges the heat of storage on daytime, is conducted heat to both direction by way of convection current.And work as T1<T2When, it is indoor
Air circulation between air layer not only can not bring heat to interior, can also the interior heat transfer with outdoor of accelerating chamber, accelerating chamber
Interior thermal loss;Therefore, now, air circulation is nonsensical, closes V2、V3。
Summer:Daytime, intensity of solar radiation was big, and solar radiation is got in by glass.Work as T3<T2When (T2、T3It is right respectively
PT2, PT3 is answered to detect the temperature for obtaining), open V1And V3And V4.Due to solar radiation, the air in air layer is heated, temperature
Degree rises, and density reduces, and hot-air is flowed up;After reaching room top, hot-air is discharged to room by the ventilating opening on glass
Outward, the solar radiation entered in building is taken away.Due to causing room negative pressure to outdoor air draft, fresh air is by the ventilation on Beijing Foreign Language Studies University wall
Mouth V4Into supplement room air draft (T3<T2).Thus, a circulation is formed, air is constantly heated by this in air layer
Solar radiation is taken to outdoor by circulation.Simultaneously when temperature is more than 28 DEG C in air layer, phase transition temperature is 28 DEG C in heat accumulation wall
Phase-change material is undergone phase transition, and liquid is changed into from solid-state, is absorbed heat and is stored in wherein, reduces incoming indoor heat.Due to
Phase-change accumulation energy quantity of heat storage compared with common sensible heat energy storage is bigger, therefore, when daytime, intensity of solar radiation was very big, the spy in this example
Bright shellfish wall can store more energy, and the solar radiation that reduction gets in reduces indoor temperature.And to evening, the sun
Radiation is reduced, and when air layer temperature is gradually decrease to below 28 DEG C, phase-change material is gradually solidified by liquid, discharges storage on daytime
The heat deposited, by above-mentioned air circulation, the heat being stored in daytime in phase-change material is brought to outdoor.And work as T3>T2When, from
V on Beijing Foreign Language Studies University wall4Fresh air into room can improve indoor temperature;Therefore, now, air circulation described above is not anticipated
Justice, closes V1、V3And V4。
To sum up, following technological merit can be obtained according to the present invention:(1) minimum temperature in winter room is improved, summer is reduced
Indoor maximum temperature, reduces fluctuations in indoor temperature, increases indoor thermal comfort;(2) be adapted to whole year use, it is automatic by sensor
The folding of control valve, saves manpower;(3) solar energy and gravity-flow ventilation are made full use of, constructing operation energy consumption is reduced;(4) increase
The quantity of heat storage of Te Langbei walls, reduces wall load, saves construction material.Therefore, patent of the present invention can be widely applied to office and build
Build, in the various buildings such as civil buildings.Self-regulation phase transformation Te Langbei walls in the present invention, (particularly with without too when in the winter time
Heat supply not enough situation when positive), its second phase transformation wall layers 7 can absorb and stores the sun and obtains hot, and coupling heat-collection and heat-accumulation arranges heat
Enter interior;In summer, its first phase transformation wall layers 3 is absorbable and stores heat, and coupling nature ventilation is discharged heat outdoor.
Self-regulation phase transformation Te Langbei walls in above-described embodiment, the thickness of its each Rotating fields can be adjusted flexibly, its
In, the thickness of air layer 2 can be 0.1m~0.2m, and the thickness of the first phase transformation wall layers 3 can be for 0.02m~0.04m (especially
0.03m), the thickness of first thermal insulation layer 4 can be 0.05~0.1m, the thickness of concrete wall layer 5 can for 0.24~
0.36m, the thickness of second thermal insulation layer 6 can be 0.05m~0.1m, the thickness of the second phase transformation wall layers 7 can for 0.02m~
0.04m (especially 0.03m), is capable of achieving the good adjustment effect to indoor temperature.First phase transformation wall layers 3 and the second phase transformation
Wall layers 7 both except each corresponding first kind paraffin, Equations of The Second Kind paraffin phase transition temperature difference in addition to, in each phase transformation wall layers,
High density polyethylene (HDPE), expanded graphite, paraffin three percent mass ratio can be with identical, it is also possible to it is different;For any
One class phase transformation wall layers, as long as mass percent of the high density polyethylene (HDPE) in the phase transformation wall layers is 15%~20%, expanded graphite
Mass percent for 0~5% can (surplus be correspondence paraffin).
In addition to each component of above-mentioned detailed description, each functional unit in Te Langbei walls of the present invention refers to correlation
Prior art (in more particularly, to the prior art of Te Langbei walls) is made and is set.High-density polyethylene in the present invention
Alkene, expanded graphite etc. are satisfied by the usual definition of prior art;As the regulation of its phase transition temperature of the paraffin of main body phase-change material
The paraffin raw material of different phase transition temperatures can be selected to obtain;In the present invention phase change layer (including outer layer sizing PCM wall 3,
Internal layer sizing PCM wall 7), its phase transition temperature allows ± 1 DEG C near design temperature of deviation.
As it will be easily appreciated by one skilled in the art that the foregoing is only presently preferred embodiments of the present invention, it is not used to
The limitation present invention, all any modification, equivalent and improvement made within the spirit and principles in the present invention etc., all should include
Within protection scope of the present invention.
Claims (9)
1. a kind of self-regulation phase transformation Te Langbei walls, it is characterised in that self-regulation phase transformation Te Langbei walls are from outside to inside successively
Including glassy layer (1), air layer (2), the first phase transformation wall layers (3), first thermal insulation layer (4), concrete wall layer (5), second every
Thermosphere (6) and the second phase transformation wall layers (7), wherein,
The phase transition temperature of the first phase transformation wall layers (3) is 27 DEG C~29 DEG C;First phase transformation wall layers (3) is by including high density
Polyethylene, expanded graphite and first kind paraffin process what is obtained in interior raw material by melt blending, wherein described first
The phase transition temperature of class paraffin is 27 DEG C~29 DEG C;
The phase transition temperature of the second phase transformation wall layers (7) is 17 DEG C~19 DEG C;Second phase transformation wall layers (7) is by including high density
Polyethylene, expanded graphite and Equations of The Second Kind paraffin process what is obtained in interior raw material by melt blending, wherein described second
The phase transition temperature of class paraffin is 17 DEG C~19 DEG C;
Additionally, the glassy layer (1) for outdoor environment directly contact;The second phase transformation wall layers (7) for indoor ring
Border directly contact.
2. self-regulation phase transformation Te Langbei walls as claimed in claim 1, it is characterised in that the thickness of the air layer (2) is
0.1m~0.2m;The thickness of the first phase transformation wall layers (3) is 0.02m~0.04m;The thickness of the first thermal insulation layer (4) is
0.05~0.1m;The thickness of concrete wall layer (5) is 0.24~0.36m;The thickness of the second thermal insulation layer (6) is
0.05m~0.1m;The thickness of the second phase transformation wall layers (7) is 0.02m~0.04m.
3. be self-regulated phase transformation Te Langbei walls as claimed in claim 1, it is characterised in that for the first phase transformation wall layers (3),
Mass percent of the high density polyethylene (HDPE) in first PCM wallboard be 15%~20%, the expanded graphite this first
Mass percent in PCM wallboard is 0~5%;For the second phase transformation wall layers (7), the high density polyethylene (HDPE) this second
Mass percent in phase transformation wall layers is 15%~20%, mass percent of the expanded graphite in the second phase transformation wall layers
It is 0~5%.
4. be self-regulated phase transformation Te Langbei walls as claimed in claim 1, it is characterised in that the self-regulation phase transformation Te Langbei walls set
Put in the south, the self-regulation phase transformation Te Langbei walls are perpendicular to the ground;And with the self-regulation phase transformation Te Langbei wall phases
To north be additionally provided with Beijing Foreign Language Studies University wall, the self-regulation phase transformation Te Langbei walls and the Beijing Foreign Language Studies University wall and top board, other walls
Face, ground surround the space i.e. interior space of formation together;
First kind ventilating opening (V1) is provided with the glassy layer (1);The first phase transformation wall layers (3), the first thermal insulation layer
(4) the, is provided with concrete wall layer (5), the second thermal insulation layer (6) and the second phase transformation wall layers (7)
Two class ventilating openings (V2) and the 3rd class ventilating opening (V3), distance of the Equations of The Second Kind ventilating opening (V2) away from ground are more than the described 3rd
Distance of the class ventilating opening (V3) away from ground;The 4th class ventilating opening (V4) is provided with the Beijing Foreign Language Studies University wall;
The first kind ventilating opening (V1), the Equations of The Second Kind ventilating opening (V2) and the 4th class ventilating opening (V4) with ground phase
Projection on vertical any straight line coincides;The first kind ventilating opening (V1), the Equations of The Second Kind ventilating opening (V2), institute
State and be respectively arranged with switch on the 3rd class ventilating opening (V3) and the 4th class ventilating opening (V4), for switching first kind ventilation
Mouthful (V1), the Push And Release of the Equations of The Second Kind ventilating opening (V2), the 3rd class ventilating opening (V3) and the 4th class ventilating opening (V4)
State;
Additionally, being additionally provided with the first temperature sensor (PT1), second temperature sensor (PT2) and three-temperature sensor
(PT3), wherein, first temperature sensor (PT1) be located at the air layer (2) in, for detecting the air layer (2)
Temperature;The second temperature sensor (PT2) is located in the interior space, the temperature for detecting the interior space;Institute
State three-temperature sensor (PT3) to be located outside, the three-temperature sensor (PT3) is used to detect the temperature of outdoor;
First temperature sensor (PT1), the second temperature sensor (PT2) and the three-temperature sensor (PT3)
With the first kind ventilating opening (V1), the Equations of The Second Kind ventilating opening (V2), the 3rd class ventilating opening (V3), the 4th class
The switch of ventilating opening (V4) is connected respectively, and the temperature value for being obtained according to detection switches the state of each switch;Remember described
The temperature value that one temperature sensor (PT1) is detected is T1, the temperature value that the second temperature sensor (PT2) detects is T2,
The temperature value that the three-temperature sensor (PT3) detects is T3, then
When outdoor is for winter,
Work as T1>T2When, the state that the Equations of The Second Kind ventilating opening (V2) and the 3rd class ventilating opening (V3) are out, described first
Class ventilating opening (V1) and the 4th class ventilating opening (V4) are the state of closing;
Work as T1<T2When, the first kind ventilating opening (V1), the Equations of The Second Kind ventilating opening (V2), the 3rd class ventilating opening (V3),
And the 4th class ventilating opening (V4) is the state of closing;
When outdoor is for summer,
Work as T3<T2When, the first kind ventilating opening (V1), the Equations of The Second Kind ventilating opening (V2) and the 4th class ventilating opening
(V4) state being out, the 3rd class ventilating opening (V3) is the state closed;
Work as T3>T2When, the first kind ventilating opening (V1), the Equations of The Second Kind ventilating opening (V2), the 3rd class ventilating opening (V3),
And the 4th class ventilating opening (V4) is the state of closing.
5. self-regulation phase transformation Te Langbei walls as claimed in claim 4, it is characterised in that described other metopes include eastern exterior wall and
Western exterior wall;The top board is roof.
6. be self-regulated phase transformation Te Langbei walls as claimed in claim 4, it is characterised in that the side of the Equations of The Second Kind ventilating opening (V2)
Edge is 0.2m apart from the beeline of the top board;The beeline on the Edge Distance ground of the 4th class ventilating opening (V4) is
0.2m;Preferably, distance of the top board apart from ground is 3m.
7. be self-regulated phase transformation Te Langbei walls as claimed in claim 4, it is characterised in that the first kind ventilating opening (V1) is 3
Individual rectangle, parallel to ground, the rectangle width direction is perpendicular to ground for the length direction of the rectangle;Any one of square
The length of shape is 0.5m, and width is 0.3m.
8. be self-regulated phase transformation Te Langbei walls as claimed in claim 4, it is characterised in that the Equations of The Second Kind ventilating opening (V2) is 3
Individual rectangle, the length direction of the rectangle parallel to ground, the rectangle width direction perpendicular to ground, any one of square
The length of shape is 0.5m, and width is 0.3m;
The 3rd class ventilating opening (V3) be 3 rectangles, the length direction of the rectangle parallel to ground, the rectangle width side
0.5m is to the length perpendicular to ground, any one of rectangle, width is 0.3m;
The 4th class ventilating opening (V4) be 3 rectangles, the length direction of the rectangle parallel to ground, the rectangle width side
0.5m is to the length perpendicular to ground, any one of rectangle, width is 0.3m.
9. be self-regulated phase transformation Te Langbei walls as claimed in claim 4, it is characterised in that first temperature sensor (PT1)
It is the temperature for detecting the air layer (2) middle-range from the ground at 2m positions;The second temperature sensor (PT2) be for
Detect temperature of the interior space middle-range from the ground at 2m positions.
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CN114991338A (en) * | 2022-06-29 | 2022-09-02 | 西安建筑科技大学 | Caterpillar rotary phase-change heat storage extra-lambert wall |
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