CN205907844U - Adopt setting latent heat heat accumulation phase change material's composite wall - Google Patents
Adopt setting latent heat heat accumulation phase change material's composite wall Download PDFInfo
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- CN205907844U CN205907844U CN201620653102.8U CN201620653102U CN205907844U CN 205907844 U CN205907844 U CN 205907844U CN 201620653102 U CN201620653102 U CN 201620653102U CN 205907844 U CN205907844 U CN 205907844U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/12—Technologies relating to agriculture, livestock or agroalimentary industries using renewable energies, e.g. solar water pumping
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Abstract
The utility model relates to an adopt setting latent heat heat accumulation phase change material's composite wall, including the wall body, characterized by: the wall body includes that phase -change thermal layer, building block layer and heat preservation that ab intra outwards connected gradually constitute three layer construction phase transition composite wall, the phase -change thermal stratification is inboard in northern wall, the outside of bei qiang is placed in to the heat preservation, and the building block stratification is between phase -change thermal layer and heat preservation. Beneficial effect: the utility model discloses an use the glass bead granule as main component's phase change material, phase change material can store or release a large amount of latent heat in holding exothermic process, and its high heat accumulation, low exothermal phase transition temperature make composite wall show the effect of obvious " millet is filled out in the peak clipping ", especially the promotion to night temperature have obvious effect, be favorable to the assurance of thermal environment among the warmhouse booth, improved the heat storage capacity on the interior surface material layer of greenhouse wall body, ensured the interior abundant absorption of effective sunshine duration and store the sun heat energy that throws above that, improvement solar energy utilization ratio.
Description
Technical field
This utility model belongs to Environment Controlled Agricultural Facility technical field, more particularly, to a kind of is suitable for application in warmhouse booth
Combined wall using setting latent-heat storage phase-change material.
Background technology
It can be that plant growing provides suitable microclimate environment that warmhouse booth utilizes solar energy, have a not season and limited
System, not limited by regions, time-out makes the advantages of produce and improve land utilization ratio.In recent years pattern plastic warmhouse booth has according to it
Constructing operation low cost, structure is simple and convenient has obtained the favor of more peasants the advantages of manage, in industrialized agriculture
Arrive faster and better development.Pattern plastic warmhouse booth is the wet ring of heat of the relative closure set up by coverlay and building enclosure
Border.North wall as building enclosure carries the multi-functionals such as thermal-arrest, accumulation of heat, load-bearing and insulation, is greenhouse winter and night weight
The supplying heat source wanted.The material of body of wall, thickness and construction all strong influence can the hot property of body of wall.At present, in practical application
In there are following two problems:
(1), in conventional research, body of wall layer optimum thickness is studied less, not yet formulate so far and be applied to each department wall
The thickness calibration of body.In building course, the selection of thickness of wall body lacks foundation, when low temperature freezing-disaster in greenhouse, subjectively thinks
Caused by being because that body of wall is not thick, heat energy accumulation on daytime is not enough, occur in that the phenomenon blindly increasing thickness of wall body, not only shortage section
Learn foundation, and waste a large amount of manpowers and land resource.
(2) traditional materials for wall limits the utilization to solar energy for the greenhouse wall body.Traditional structure of greenhouse is simple, accumulation of heat
Performance and heat-insulating property are typically poor, and when outside air temperature reduces, the equal exoergic in body of wall both sides is it is impossible to ensure that crops normally give birth to
Long temperature conditionss.Therefore, need winter to heat, conventional energy resource consumption is larger, and solar energy is not efficiently utilized more.
Utility model content
The purpose of this utility model is to overcome the shortcomings of above-mentioned technology, and provides one kind using setting latent-heat storage phase transformation
The combined wall of material, is mainly used in warmhouse booth, and the usage amount that can not only reduce material improves heat storage efficiency, acceptable
Store more heats in certain temperature range, make combined wall show the effect of significantly " peak load shifting ", especially
Lifting for nocturnal temperature has obvious effect, thus ensureing the thermal environment in pattern plastic warmhouse booth.
This utility model for achieving the above object, employs the following technical solutions: one kind is using setting latent-heat storage phase transformation material
The combined wall of material, including body of wall, is characterized in that: described body of wall includes phase-transition heat-storage layer, the building block being sequentially connected from inside to outside
Layer and heat-insulation layer constitute three-decker phase transformation combined wall, and described phase-transition heat-storage is placed on inside north wall, and described insulation is placed on
North wall outermost, building block is placed between phase-transition heat-storage layer and heat-insulation layer.
Described phase-transition heat-storage thickness degree is 10-100mm；Building block layer thickness is 250-500mm；Insulation layer thickness is 40-
60mm.
Described three-decker phase transformation combined wall optimum thickness is 390mm, i.e. phase-transition heat-storage thickness degree 40mm+ building block layer
Thickness 300mm+ insulation layer thickness 50mm.
Beneficial effect: a kind of phase-change material with glass bead granule as main component that this utility model is adopted, pin
It is stored, exothermic character compared with common building materials, phase-change material store exothermic process in there is obvious temperature platform, energy
Enough store or discharge substantial amounts of latent heat, its high accumulation of heat, the phase transition temperature of low heat release so that combined wall is shown significantly " peak clipping is filled out
The effect of paddy ", the lifting particularly with nocturnal temperature has obvious effect, is conducive to the guarantee of thermal environment in warmhouse booth；Carry
The heat storage capacity of high greenhouse wall body inner surface material layer is it is ensured that fully absorbing in the effective sunshine time and storing projection thereon
Solar thermal energy, improve solar energy utilization ratio；Increase the thermal resistance of greenhouse wall body outer surface material layer, logical to reduce to greatest extent
Cross body of wall to run off to the solar thermal energy loss of outdoor environment；This utility model warmhouse booth three-decker phase transformation combined wall thickness
For 390mm.By thermal resistance calculation, show that the thickness of thermal resistance identical with three layers of phase transformation combined wall is 998mm brick wall and 2112mm
Cob wall is compared, and is simulated calculating in the case of other external condition all sames, show that the hot property of combined wall is optimum, brick
Wall is worst, and night minimum temperature can be respectively increased 2.04 DEG C and 2.90 DEG C than brick wall and cob wall by combined wall, and is taking up an area
The aspect in face then reduces by 60% and 80% than both, and this is for the raising of novel energy-conserving room warm in nature hot property and land utilization ratio
Reduce and there is larger directive significance.
Brief description
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the physical model figure of warmhouse booth；
Fig. 3 is the influence curve figure to north wall internal surface temperature for the phase-transition heat-storage thickness degree；
Fig. 4 is accumulation of heat operating mode material center temperature schematic diagram over time；
Fig. 5 is heat release operating mode material center temperature schematic diagram over time；
Fig. 6 is the schematic diagram of warmhouse booth model.
In figure: 1- phase-transition heat-storage layer/phase-transition heat-storage is layer by layer；2- building block layer；3- heat-insulation layer, 4, north wall.A--- is indoor；
B---- is outdoor
Specific embodiment
Describe specific embodiment of the present utility model with reference to preferred embodiment in detail.
Refer to accompanying drawing 1,2, this example provides a kind of combined wall using setting latent-heat storage phase-change material, including wall
Body, it is multiple that phase-transition heat-storage layer, building block layer and the heat-insulation layer that described body of wall includes being sequentially connected from inside to outside constitutes three-decker phase transformation
Close body of wall, described phase-transition heat-storage is placed on inside north wall 4, and described insulation is placed on north wall outermost, building block is placed on phase transformation and stores
Between thermosphere and heat-insulation layer.Described phase-transition heat-storage thickness degree is 10-100mm；Building block layer thickness is 250-500mm；Insulation thickness
Spend for 40-60mm.
Described three-decker phase transformation combined wall optimum thickness is 390mm, i.e. phase-transition heat-storage thickness degree 40mm+ building block layer
Thickness 300mm+ insulation layer thickness 50mm.
Phase-transition heat-storage layer has that specific heat capacity is big, the high feature of latent-heat storage performance, and building block layer has load-bearing and has sensible heat concurrently and store
Hot property constitutes novel wall material, and heat-insulation layer has the high heat preservation performance feature that thermal conductivity is little, thermal resistance is big.According to the Chinese people
For heliogreenhouse retaining wall and rear roofing in republic's machinery industry standard " sunlight greenhouse structure " jb/t10286-2001
The requirement of comprehensive thermal resistance value and China's working standard " steam-pressing aero-concrete application technology code " jgj17-2008 in give
The thickness related request of the heating districts air entrained concrete building enclosure going out, as shown in table 1,2.
The heat insulation of table 1 heliogreenhouse building enclosure
Table 2 different-thickness aerated concrete outer wall thermal data
The heat insulation of corresponding Efficiency in Buildings in Tianjin Area retaining wall, the lower bound thickness that application interpolation method obtains exterior wall is 244mm.Day
The indoor average humiture in light greenhouse is similar to general indoor temperature and humidity, but in view of front roof portion in heliogreenhouse building enclosure
Dividing is the vulnerable area of insulation, therefore this research is the thermal isolation and heat storage of roofing after reinforcement in the design, in conjunction with current block specification, will
The design thickness of wall is 300mm afterwards.Therefore, the body of wall base material air entrained concrete of building block layer, thickness is 300mm.Guarantor can be met
Warm insulation requirement, and then need 720mm thickness just can meet design requirement using solid plain clay brick.Air-entrained concrete building block
After indoor temperature being kept on the premise of reducing thickness of wall body 14% to be not less than, wall is double 24 Rhizoma Begoniae Willsonii greenhouses, reduces material
Consumption, improves the utilization rate in inside greenhouse soil, can increase effective use of building while reducing body of wall floor space
Area.
Under the premise of simulation calculating 40mm thickness phase-transition heat-storage layer+300mm building block layer, north wall outer surface heat flow is with outdoor temperature
Situation of change.With heat-insulation layer, 8cm is increased to by 2cm, the accumulative heat flow of north wall outer surface is gradually reduced 20.68,
15.67、12.25、9.82、8.05、6.72mj/m2, the amplitude that reduces is 4.68,3.72,3.02,2.55,2.07,1.79%.By
This can be seen that greenhouse outer surface heat flow is not as insulation layer thickness is in that equal proportion changes, and starts only little amplitude variation from 5cm
Change, the reduction respectively less than 3% adding up heat dissipation capacity afterwards is even more little, and simple increase insulation layer thickness is to body of wall Effect of Thermal Performance
Almost can ignore, it can be said that bright temperature thickness degree is for meeting the requirement to heat insulating ability for the greenhouse wall body during 5cm.
Therefore this utility model sets the body of wall base material air entrained concrete of building block layer, and thickness is 300mm, insulation layer thickness
50mm.
The temperature of air in the thickness effect body of wall of phase-transition heat-storage layer and canopy, in theory for, phase-transition heat-storage thickness degree is got over
Greatly, amount of stored heat is more, is more conducive to the raising of thermal environment in canopy.But it is true that with the increase of thickness, the increase of amount of stored heat is
Very limited, being significantly increased of investment can be caused on the contrary.Therefore, find optimum thickness for phase change thermal storage wall optimization be to
Close important.
Necessarily rear (300mm building block layer+50mm heat-insulation layer), the side being calculated using simulation in block thickness and insulation layer thickness
Method determines the optimum thickness of phase-transition heat-storage layer.Obtain in Efficiency in Buildings in Tianjin Area typical case heating (on the month in December 25-12 30) 120 hours day,
Phase-transition heat-storage layer is increased to the change of north wall internal surface temperature and body of wall storage heat release situation during 9cm by 0cm.
Refer to accompanying drawing 4, Fig. 5, the process of phase-change material and conventional cement mortar accumulation of heat heat release and heat release operating mode material center
Temperature schematic diagram over time.
Refer to accompanying drawing 3 and table 1 it can be seen that wall-body energy saving temperature changing trend is consistent, wall-body energy saving temperature is not
It is in that equal proportion changes with phase-transition heat-storage thickness degree, starts only slightly to change from 4cm, the lifting of minimum temperature is less than 0.5
DEG C, the highest temperature is not changed in substantially, and therefore explanation phase-transition heat-storage layer thickness of wall body is for meeting greenhouse wall body to storage during 4cm
Hot requirement.It can be seen from the table, with the increase of phase-transition heat-storage thickness degree, accumulative amount of stored heat and cumulative heat release are all gradually
Increase, but amplitude is less and less, before thickness is less than 40mm, heat accumulative increase is double more obvious, after reaching 40mm,
Increased percentage rate is respectively less than 1% it can be seen that 40mm is equivalent to the turning point of a gaining rate change, it is contemplated that selecting 40mm
Optimum thickness as phase-transition heat-storage layer is feasible, and this is concluded that with wall-body energy saving temperature consistent.
Therefore this is 390mm using the three-decker phase transformation combined wall thickness of new setting latent-heat storage phase-change material,
Threeply degree is respectively as follows: 40mm phase-transition heat-storage layer+300mm building block layer+50mm heat-insulation layer.
The storage heat release of table 3 different-thickness phase-transition heat-storage layer body of wall is compared
For probing into using effect in warmhouse booth for this combined wall, reduced scale cun simple greenhouse booth, greenhouse are built
Booth model is as shown in Figure 6.Size combines People's Republic of China's machinery industry standard " sunlight greenhouse structure " jb/t10286-
2001, carry out similar reduce (each size such as icon note).Experiment warmhouse booth sits in the north facing the south, and thing extends, and exterior wall adopts this reality
Constructed with the three-decker of new proposition, arranged temperature point simultaneously indoors.Arrange test data to obtain in greenhouse
Temperature as shown in table 4, reaches the requirement of greenhouse indoor temperature, body of wall accumulation of heat, heat release are respond well.
Table 4 warmhouse booth indoor temperature
| Temperature situation | Outside air temperature | Indoor air temperature |
| The highest temperature | 5.55 | 26.53 |
| The lowest temperature | -6.10 | 4.81 |
| Night temperature on average | -2.33 | 11.05 |
Above-mentioned with reference to embodiment to a kind of this retouching in detail of carrying out of combined wall using setting latent-heat storage phase-change material
State, be illustrative rather than determinate, several embodiments can be included according to limited scope, therefore without departing from this
Changing and modifications under utility model general plotting, should belong within protection domain of the present utility model.
Claims (3)
1. a kind of combined wall using setting latent-heat storage phase-change material, including body of wall, is characterized in that: described body of wall is included certainly
Phase-transition heat-storage layer, building block layer and the heat-insulation layer being sequentially connected from inside to outside constitutes three-decker phase transformation combined wall, and described phase transformation stores
Thermosphere is placed in inside north wall, and described insulation is placed on north wall outermost, and building block is placed between phase-transition heat-storage layer and heat-insulation layer.
2. the combined wall using setting latent-heat storage phase-change material according to claim 1, is characterized in that: described phase transformation
Recuperation layer thickness is 10-100mm；Building block layer thickness is 250-500mm；Insulation layer thickness is 40-60mm.
3. the combined wall using setting latent-heat storage phase-change material according to claim 1, is characterized in that: described three layers
Structural phase transition combined wall optimum thickness is 390mm, i.e. phase-transition heat-storage thickness degree 40mm+ building block layer thickness 300mm+ heat-insulation layer
Thickness 50mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620653102.8U CN205907844U (en) | 2016-06-23 | 2016-06-23 | Adopt setting latent heat heat accumulation phase change material's composite wall |
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| CN201620653102.8U CN205907844U (en) | 2016-06-23 | 2016-06-23 | Adopt setting latent heat heat accumulation phase change material's composite wall |
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| CN205907844U true CN205907844U (en) | 2017-01-25 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971157A (en) * | 2016-06-23 | 2016-09-28 | 天津大学建筑设计研究院 | Composite wall adopting fixed-form latent heat storage phase-change material |
| CN109328768A (en) * | 2018-12-21 | 2019-02-15 | 山东农业大学 | A kind of heliogreenhouse north wall |
| CN110453803A (en) * | 2019-07-10 | 2019-11-15 | 合肥工业大学 | A kind of energy-saving wall integrating phase-change material Yu heat pipe |
| CN111434867A (en) * | 2019-01-11 | 2020-07-21 | 住友化学株式会社 | Roof or ceiling element and building |
-
2016
- 2016-06-23 CN CN201620653102.8U patent/CN205907844U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971157A (en) * | 2016-06-23 | 2016-09-28 | 天津大学建筑设计研究院 | Composite wall adopting fixed-form latent heat storage phase-change material |
| CN109328768A (en) * | 2018-12-21 | 2019-02-15 | 山东农业大学 | A kind of heliogreenhouse north wall |
| CN111434867A (en) * | 2019-01-11 | 2020-07-21 | 住友化学株式会社 | Roof or ceiling element and building |
| CN111434867B (en) * | 2019-01-11 | 2023-01-10 | 住友化学株式会社 | Roof or ceiling element and building |
| CN110453803A (en) * | 2019-07-10 | 2019-11-15 | 合肥工业大学 | A kind of energy-saving wall integrating phase-change material Yu heat pipe |
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| CP03 | Change of name, title or address |
Address after: 300072 Tianda architectural creative building (Science and Technology Park), No.192, Anshan West Road, Nankai District, Tianjin Patentee after: Tianjin University architectural design and Planning Research Institute Co.,Ltd. Address before: No.192 Anshan West Road, Nankai District, Tianjin 300073 Patentee before: TIANJIN University RESEARCH INSTITUTE OF ARCHITECTRUAL DESIGN & URBAN PLANNING |