CN102269443A - Indoor geothermal heating structure with capillary network and phase change thermal storage materials - Google Patents
Indoor geothermal heating structure with capillary network and phase change thermal storage materials Download PDFInfo
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- CN102269443A CN102269443A CN2011101906768A CN201110190676A CN102269443A CN 102269443 A CN102269443 A CN 102269443A CN 2011101906768 A CN2011101906768 A CN 2011101906768A CN 201110190676 A CN201110190676 A CN 201110190676A CN 102269443 A CN102269443 A CN 102269443A
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/12—Hot water central heating systems using heat pumps
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Abstract
The invention discloses an indoor geothermal heating structure with a capillary network and phase change thermal storage materials, belonging to the technical field of solar energy building heating. The structure comprises a floor decoration layer, an upper-layer phase change material, a capillary network grid, a lower-layer phase change material, a reflective film, a thermal insulating layer and a floor base which are arranged from top to bottom, wherein the floor decoration layer is supported by keel supports laid on the thermal insulating layer, the keel supports pass through the pipe gaps of the capillary network grid, the phase change material layers are arranged between the adjacent keel supports. Low-temperature heat-source hot water exchanges heat with the upper-layer phase change material and the lower-layer phase change material in capillaries and supplies heat to the room through the floor decoration layer; and the phase change materials are solidified at night and release heat to the room through the floor decoration layer. The indoor geothermal heating structure with the capillary network and the phase change thermal storage materials has the characteristics of large heat exchange area, even temperature, quick startup, small space occupation, more flexible arrangement and is convenient to install; by using the structure, the indoor temperature is even and the indoor thermal comfort is good, therefore, the indoor geothermal heating structure provided by the invention has widely application prospect and promotional value.
Description
Technical field
The invention belongs to the heating in solar energy building technical field, particularly a kind of indoor geothermal heating structure of utilizing capillary network and phase change heat storage material.
Background technology
Building energy conservation will improve the performance and the heating and air-conditioning system efficient of building enclosure on the one hand, making full use of natural energy resources on the other hand is an important approach, therefore various solar building technology have been developed, passive type is as directly be benefited formula, heat collecting and accumulating wall type etc., and is active as the solar water radiant floor heating system.The solar energy resources energy-flux density is low, intermittent and unsettled characteristics need develop energy storage technology to make full use of.It is that variations in temperature is big, heat storage capacity is relatively little that conventional method is utilized the shortcoming of floor concrete sensible heat accumulation of heat, and phase-change material can the form with latent heat absorb or discharge a large amount of heats under isothermal or approximate isothermal condition, the equivalent specific heat of latent heat of phase change in certain temperature range is far longer than the sensible heat of common normal rerum natura material, so utilize phase-change material to store solar energy remarkable advantages is arranged, so people have developed solar water-phase-transition heat-storage floor heating system.Daytime, phase-change material melted storage from the unnecessary heat of solar water, discharged to room air evening again and improved its temperature.But owing to the floor hot-water coil pipe more slightly exists thereby to reduce floor height, tube pitch big thereby hold that rate of heat release is low to be started slowly and problems such as non-uniform temperature.The indoor geothermal heating structure of utilizing capillary network and phase change heat storage material that the present invention proposes has that heat exchange area is big, more uniform temperature, startup are fast, occupy little space and arrange characteristics such as more flexible, solved traditional phase-change floor hot water heating mode and held little and then slow and these problems of non-uniform temperature of room intensification of rate of heat release, for improving solar thermal utilization rate and indoor thermal comfort and reducing conventional heating air conditioning energy consumption and then realize that building energy conservation is significant.
Summary of the invention
The objective of the invention is to propose a kind of indoor geothermal heating structure of utilizing capillary network and phase change heat storage material, it is characterized in that concrete structure comprises floor decorative layer, upper strata phase-change material, capillary network grid, lower floor's phase-change material, reflectance coating, heat-insulation layer and flooring base from top to bottom.The floor decorative layer supports by the keel frame on the heat-insulation layer that is laid in, and the keel frame passes from the ligament of capillary network grid, and phase-change material layers is arranged between the adjacent keel frame.Flow through in capillary from the hot water of low-temperature heat source (solar water heater or auxiliary thermal source) daytime and conduct heat and give upper and lower layer phase-change material, upper and lower layer phase-change material melted, the phase-change material that heat is melted stores, simultaneously by the room heat supply of floor decorative course; Evening, phase-change material solidified heat release by the room heat supply of floor decorative course.Heat exchange area is big because the capillary network grid have, temperature is even, it is fast to start, occupy little space and arrange more flexible characteristic, that has improved phase-change material holds heat release usefulness, thereby improved the efficient of solar heat water heating system, make indoor temperature more even in addition, thereby improved indoor hot comfort.
Described upper and lower phase-change material layers is but is not limited to the inorganic phase-changing material of bag encapsulation or the organic phase change material of interpolation fireproof agent that described phase-change material is Na
2SO
410H
2O, GaCl
26H
2O or octadecane; Phase transition temperature between 28-32 ℃, suitable solar energy or auxiliary thermal source hot water heating floor temperature requirement, latent heat of phase change is bigger.
Described capillary two ends are communicated with feed pipe and return pipe respectively, compose in parallel the capillary network grid by many capillaries.
The invention has the beneficial effects as follows the indoor geothermal heating structure of utilizing capillary network and phase change heat storage material of the present invention, heat exchange area is big because the capillary network grid have, temperature is even, it is fast to start, occupy little space and arrange more flexible characteristic, that has improved phase-change material holds heat release usefulness, thereby improved the efficient of solar heat water heating system, make indoor temperature more even in addition, thereby improved indoor hot comfort.This geothermal heating structure has solved phase-change floor hot water heating mode and has held little and then the slow and uneven temperature defective of room intensification of rate of heat release, and has reduced the downward heat loss of floor heating.The present invention is for improving solar thermal utilization rate and indoor thermal comfort and reducing conventional heating air conditioning energy consumption and then realize that building energy conservation is significant.In addition, the present invention is simple in structure, and is easy for installation; Save the space, good reliability is suitable for the use under construction of solar water floor heating.
Description of drawings
Fig. 1 is the indoor floor hot water heating structure normal cross-section schematic diagram of capillary network and phase-transition heat-storage.
Fig. 2 is the indoor floor hot water heating structure flat cutting face schematic diagram of capillary network and phase-transition heat-storage.
The specific embodiment
The invention provides have hold rate of heat release height, temperature evenly, solar thermal utilization rate and the high a kind of indoor geothermal heating structure of utilizing capillary network and phase change heat storage material of indoor hot comfort, the concrete structure of this geothermal heating structure is as shown in Figure 1 and Figure 2.It is described that to utilize the indoor geothermal heating structure of capillary network and phase change heat storage material be to comprise floor decorative layer 1, upper strata phase-change material 2, keel frame 3, capillary network grid 4, lower floor's phase-change material 5, reflectance coating 6, heat-insulation layer 7 and flooring base 8 from top to bottom.Heat-insulation layer 7 is laid on the flooring base 8; Floor decorative layer 1 supports by the keel frame on the heat-insulation layer 7 that is laid in 3, and keel frame 3 passes from the ligament of capillary network grid 4, and phase-change material layers is arranged between the adjacent keel frame up and down.The capillary two ends are communicated with feed pipe 9 and return pipe 10 respectively.Flow through in capillary from the hot water of low-temperature heat source (solar water heater or auxiliary thermal source) daytime and conduct heat and give upper and lower layer phase-change material, upper and lower layer phase-change material melted, melted phase-change material heat is stored, simultaneously by the room heat supply of floor decorative course; Evening, phase-change material solidified heat release by the room heat supply of floor decorative course.
Described upper and lower phase-change material layers can be but be not limited to bag inorganic phase-changing material of encapsulation (as Na
2SO
410H
2O, GaCl
26H
2O) or add the organic phase change material (as octadecane etc.) of fireproof agent, satisfy the Building Fire Protection demand.The phase transition temperature of described phase-change material is between 28-32 ℃, suitable solar energy or auxiliary thermal source hot water heating floor temperature requirement, and latent heat of phase change is bigger; Encapsulation bag can with but be not limited to the higher aluminium foil of thermal conductivity factor or tinfoil paper is made, have certain deformability can make upper and lower layer phase-change material closely contact capillary clamped wrap in wherein, phase-change material thickness and total amount satisfy the indoor heating designing requirement.
Described capillary external diameter is at 3-5mm, and tube pitch is 15-30mm, and between the capillary pipe length 0.8-1.5m, two ends are communicated with feed pipe 9 and return pipe 10 respectively, compose in parallel capillary network grid 4 by many capillaries.The phase-transition heat-storage floor panel structure in a room can be made up of polylith capillary network grid.The material of capillary network grid can but be not limited to plastic tubes such as PP-R, PE, PE-RT.
Described floor decorative layer can be but be not limited to timber floor that thickness is decided according to the building decoration timber floor, satisfies indoor article load-bearing requirement.The keel chord position of support floor decorative layer is on heat-insulation layer and reflectance coating, can embed heat-insulation layer and peg, its material can be but be not limited to materials such as wood, steel, and its size is according to two-layer phase-change material bed thickness up and down and satisfy indoor article and floor decorative layer load-bearing requirement and deciding.
Described insulation layer thickness can but be not limited to 50mm, material can be styrofoam (but being not limited thereto).
Described indoor geothermal heating structure hot water can be from solar water heater, and the hot water temperature can be incubated relevant with parts such as local climate, solar thermal collector area, arrangement and water tanks between 35-45 ℃; Daytime, hot water provided heat part to be stored by phase-change material layers, part by the floor to being uploaded to space air; Evening, phase-change material solidified to the room heat release, improved indoor hot comfort.Simple in structure, easy for installation, save the space, good reliability.
Claims (6)
1. indoor geothermal heating structure of utilizing capillary network and phase change heat storage material, it is characterized in that concrete structure comprises floor decorative layer, upper strata phase-change material, capillary network grid, lower floor's phase-change material, reflectance coating, heat-insulation layer and flooring base from top to bottom.The floor decorative layer supports by the keel frame on the heat-insulation layer that is laid in, and the keel frame passes from the ligament of capillary network grid, and phase-change material layers is arranged between the adjacent keel frame.Flow through in capillary from the hot water of low-temperature heat source daytime and conduct heat and give upper and lower layer phase-change material, upper and lower layer phase-change material melted, the phase-change material that heat is melted stores, simultaneously by the room heat supply of floor decorative course; Evening, phase-change material solidified heat release by the room heat supply of floor decorative course.Heat exchange area is big because the capillary network grid have, temperature is even, it is fast to start, occupy little space and arrange more flexible characteristic, that has improved phase-change material holds heat release usefulness, thereby improved the efficient of solar heat water heating system, make indoor temperature more even in addition, thereby improved indoor hot comfort.
2. according to the described indoor geothermal heating structure of utilizing capillary network and phase change heat storage material of claim 1, it is characterized in that, described upper and lower phase-change material layers is but is not limited to the inorganic phase-changing material of bag encapsulation or the organic phase change material of interpolation fireproof agent that described phase-change material is Na
2SO
410H
2O, GaCl
26H
2O or octadecane; Phase transition temperature between 28-32 ℃, suitable solar energy or auxiliary thermal source hot water heating floor temperature requirement, latent heat of phase change is bigger.
3. according to the described indoor geothermal heating structure of utilizing capillary network and phase change heat storage material of claim 1, it is characterized in that described capillary two ends are communicated with feed pipe and return pipe respectively, compose in parallel the capillary network grid by many capillaries.
4. according to the described indoor geothermal heating structure of utilizing capillary network and phase change heat storage material of claim 1, it is characterized in that, with the encapsulation bag of the phase-change material layers of bag encapsulation with but be not limited to the higher aluminium foil of thermal conductivity factor or tinfoil paper is made, have certain deformability can make upper and lower layer phase-change material closely contact capillary clamped wrap in wherein.
5. according to the described indoor geothermal heating structure of utilizing capillary network and phase change heat storage material of claim 1,, it is characterized in that it is 35-45 ℃ that the hot water of low-temperature heat source can adopt lower hot water supply water temperature, has enlarged solar energy and has utilized scope; Because the capillary spacing is 15-30mm, less than the spacing of common floor heating pipe 120-200mm, that has improved phase-change material holds heat release usefulness, thereby has improved the solar thermal utilization rate; And more uniform temperature, the indoor thermal comfort height.
6. according to the described indoor geothermal heating structure of utilizing capillary network and phase change heat storage material of claim 1,, it is characterized in that described low-temperature heat source is solar water heater or auxiliary heater.
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Cited By (18)
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| CN103604156A (en) * | 2013-10-25 | 2014-02-26 | 四川长虹电器股份有限公司 | Floor heat exchange device |
| CN103615753A (en) * | 2013-10-22 | 2014-03-05 | 沈阳建筑大学 | Phase change thermal storage kang panel based on capillary network |
| CN104141980A (en) * | 2013-05-08 | 2014-11-12 | 东南大学常州研究院 | Cooling-heating-integrated double-capillary-tube-layer phase-change energy storage floor terminal device and application system |
| CN104153513A (en) * | 2014-07-31 | 2014-11-19 | 苏州科技学院 | Capillary based phase-change energy-storage wallboard and preparation method thereof |
| CN105318463A (en) * | 2014-07-24 | 2016-02-10 | 宋向东 | Heat exchange system adopting metal grounding for indoor wall and ground |
| CN105442814A (en) * | 2015-11-19 | 2016-03-30 | 浙江桐砚建筑规划设计有限公司 | Construction method for bathroom ground structure |
| CN105696773A (en) * | 2016-04-06 | 2016-06-22 | 成都元伦华科技有限公司 | Floor heating plate capable of storing and releasing heat at fixed time |
| CN105696772A (en) * | 2016-04-06 | 2016-06-22 | 成都元伦华科技有限公司 | Time-sharing heat-releasing floor heating plate |
| CN105841214A (en) * | 2016-05-11 | 2016-08-10 | 新疆大学 | Phase change heat storage floor radiation device capable of preventing overheating |
| CN106196383A (en) * | 2016-09-23 | 2016-12-07 | 四川大学 | A kind of prefabricated double-deck phase-changing energy-storing is for changes in temperature end structure and floor |
| CN106351356A (en) * | 2016-09-20 | 2017-01-25 | 上海理工大学 | Capillary tube phase change insulation part, building wall comprising same and building |
| CN108691402A (en) * | 2018-06-27 | 2018-10-23 | 四川大学 | A kind of phase-transition heat-storage deck construction |
| CN110762584A (en) * | 2019-11-12 | 2020-02-07 | 湖南大学 | Automatic control phase change energy storage floor channel fresh air system |
| CN110762583A (en) * | 2018-07-26 | 2020-02-07 | 南京吉优能源科技有限公司 | Capillary tube energy-saving heating module for low-temperature ground radiation heating |
| CN110762599A (en) * | 2019-05-15 | 2020-02-07 | 西南科技大学 | Light phase-change heat storage floor heating and design method thereof |
| CN111156580A (en) * | 2019-11-01 | 2020-05-15 | 中国建筑股份有限公司 | Phase change heat storage floor structure capable of enhancing heat exchange and construction method thereof |
| CN112682839A (en) * | 2020-12-21 | 2021-04-20 | 北京华厚能源科技有限公司 | Radiation wall end device of cascade phase change capillary network for storing and supplying cold/heat |
| CN113606976A (en) * | 2021-08-04 | 2021-11-05 | 武汉科技大学 | Phase-change heat-storage capillary skirting radiator |
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Cited By (23)
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| CN104141980A (en) * | 2013-05-08 | 2014-11-12 | 东南大学常州研究院 | Cooling-heating-integrated double-capillary-tube-layer phase-change energy storage floor terminal device and application system |
| CN103615753A (en) * | 2013-10-22 | 2014-03-05 | 沈阳建筑大学 | Phase change thermal storage kang panel based on capillary network |
| CN103604156B (en) * | 2013-10-25 | 2016-03-16 | 四川长虹电器股份有限公司 | A kind of floor heat exchange device |
| CN103604156A (en) * | 2013-10-25 | 2014-02-26 | 四川长虹电器股份有限公司 | Floor heat exchange device |
| CN105318463A (en) * | 2014-07-24 | 2016-02-10 | 宋向东 | Heat exchange system adopting metal grounding for indoor wall and ground |
| CN104153513A (en) * | 2014-07-31 | 2014-11-19 | 苏州科技学院 | Capillary based phase-change energy-storage wallboard and preparation method thereof |
| CN105442814B (en) * | 2015-11-19 | 2017-08-04 | 浙江桐砚建筑规划设计有限公司 | A kind of construction method of bathroom floor structure |
| CN105442814A (en) * | 2015-11-19 | 2016-03-30 | 浙江桐砚建筑规划设计有限公司 | Construction method for bathroom ground structure |
| CN105696773A (en) * | 2016-04-06 | 2016-06-22 | 成都元伦华科技有限公司 | Floor heating plate capable of storing and releasing heat at fixed time |
| CN105696772A (en) * | 2016-04-06 | 2016-06-22 | 成都元伦华科技有限公司 | Time-sharing heat-releasing floor heating plate |
| CN105841214A (en) * | 2016-05-11 | 2016-08-10 | 新疆大学 | Phase change heat storage floor radiation device capable of preventing overheating |
| CN105841214B (en) * | 2016-05-11 | 2019-01-25 | 新疆大学 | The anti-overheat flooring radiation device of phase-transition heat-storage |
| CN106351356B (en) * | 2016-09-20 | 2019-03-22 | 上海理工大学 | A kind of capillary phase-transition heat-preserving part, building masonry wall and building including it |
| CN106351356A (en) * | 2016-09-20 | 2017-01-25 | 上海理工大学 | Capillary tube phase change insulation part, building wall comprising same and building |
| CN106196383A (en) * | 2016-09-23 | 2016-12-07 | 四川大学 | A kind of prefabricated double-deck phase-changing energy-storing is for changes in temperature end structure and floor |
| CN108691402A (en) * | 2018-06-27 | 2018-10-23 | 四川大学 | A kind of phase-transition heat-storage deck construction |
| CN110762583A (en) * | 2018-07-26 | 2020-02-07 | 南京吉优能源科技有限公司 | Capillary tube energy-saving heating module for low-temperature ground radiation heating |
| CN110762599A (en) * | 2019-05-15 | 2020-02-07 | 西南科技大学 | Light phase-change heat storage floor heating and design method thereof |
| CN111156580A (en) * | 2019-11-01 | 2020-05-15 | 中国建筑股份有限公司 | Phase change heat storage floor structure capable of enhancing heat exchange and construction method thereof |
| CN111156580B (en) * | 2019-11-01 | 2021-08-10 | 中国建筑股份有限公司 | Phase change heat storage floor structure capable of enhancing heat exchange and construction method thereof |
| CN110762584A (en) * | 2019-11-12 | 2020-02-07 | 湖南大学 | Automatic control phase change energy storage floor channel fresh air system |
| CN112682839A (en) * | 2020-12-21 | 2021-04-20 | 北京华厚能源科技有限公司 | Radiation wall end device of cascade phase change capillary network for storing and supplying cold/heat |
| CN113606976A (en) * | 2021-08-04 | 2021-11-05 | 武汉科技大学 | Phase-change heat-storage capillary skirting radiator |
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Application publication date: 20111207 |