CN211114586U - Split joint type double-layer phase change heat storage and cold accumulation floor - Google Patents
Split joint type double-layer phase change heat storage and cold accumulation floor Download PDFInfo
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- CN211114586U CN211114586U CN201921071126.2U CN201921071126U CN211114586U CN 211114586 U CN211114586 U CN 211114586U CN 201921071126 U CN201921071126 U CN 201921071126U CN 211114586 U CN211114586 U CN 211114586U
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- 238000005338 heat storage Methods 0.000 title claims abstract description 26
- 230000008859 change Effects 0.000 title claims abstract description 18
- 238000009825 accumulation Methods 0.000 title claims abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 91
- 239000012782 phase change material Substances 0.000 claims abstract description 61
- 229910052742 iron Inorganic materials 0.000 claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000004677 Nylon Substances 0.000 claims abstract description 10
- 229920001778 nylon Polymers 0.000 claims abstract description 10
- 238000005034 decoration Methods 0.000 claims abstract description 6
- 238000009413 insulation Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 26
- 230000005855 radiation Effects 0.000 description 9
- 238000004146 energy storage Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000009461 vacuum packaging Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model discloses a splicing type double-layer phase change heat storage and cold accumulation floor, which mainly comprises a keel layer and a basic structure layer (10), wherein the keel layer is composed of a floor decoration layer (1), keels (4), and two layers of galvanized sheet iron with grooves pressed in advance, namely an upper layer galvanized sheet iron (21) and a lower layer galvanized sheet iron (22), are arranged on the keels (4) to form an air channel (3); it is characterized in that water pipes (5) and upper phase-change materials (71) are alternately arranged in the prefabricated grooves of the upper galvanized sheet iron (21); and a lower-layer phase-change material (72) is placed in the groove of the lower-layer galvanized sheet iron (22). The whole floor of the utility model has simple structure, and the paving process is splicing dry paving; the phase-change material is vacuum-packaged by the nylon bag, so that the floor has the advantages of difficulty in leakage, good heat storage and release effects and the like, is convenient to move and transport after being packaged, and is pre-pressed and formed in advance by the galvanized sheet iron, so that the floor is convenient and quick to pave and is favorable for popularization and use of the floor.
Description
Technical Field
The utility model relates to an energy storage floor in building energy conservation field especially relates to a concatenation formula phase transition heat accumulation cold-storage floor.
Background
Pollution caused by heating in winter in the north has seriously influenced daily life of people, and heating by utilizing clean energy becomes an important means for relieving the pollution in winter. Although the solar energy with abundant resources and the low-price valley electricity are good clean heating sources, the solar energy and the low-price valley electricity have the problems of unmatched strength and time, the thermal stability and the comfort of the indoor environment cannot be guaranteed, and the application of the phase-change material (phase-change energy storage technology) or becomes the key for solving the problems. The phase-change material stores (or releases) heat energy by utilizing the property that a large amount of heat needs to be absorbed (or released) when a substance undergoes phase change, has the advantages of high energy storage density, constant phase-change temperature and repeated use, and can realize free utilization of a natural cold/heat source when applied to buildings.
The phase-change floor radiant heating system combines the advantages of phase-change materials and floor radiant heating. At present, the phase change radiation floor is limited in large-scale application and popularization due to the fact that the phase change radiation floor is complex in structure and relatively high in cost in actual engineering. The high-cost phase-change floor radiant heating system only serves for heating in winter, and the construction of a comfortable environment is realized by other indoor air conditioning modes in summer, which not only causes the waste of resources, but also contributes to the deterioration of an energy structure to a certain extent. The use of the phase-change materials with different phase-change temperatures provides a feasible scheme for the phase-change floor to run across seasons. How to further improve the structure of the phase change floor, the heat storage in winter and the cold storage in summer can be realized, the energy consumption level of the building can be reduced to a certain extent, the resource waste is avoided, the efficient utilization of energy is realized, and the phase change floor has important significance for future economic development and energy strategy in China.
Chinese patent No. 200810106145.4 discloses a dry phase-change heat-storage floor heating terminal device, which uses phase-change material as heat-storage medium to heat. The device comprises a floor decoration layer, a phase change material layer, an air channel, a radiation-proof film, a heat preservation layer and a floor base layer from top to bottom in sequence, wherein a keel is arranged between the floor decoration layer and the floor base layer, at least one hot water supply pipe or one electric heating film is embedded in the phase change material layer between every two adjacent keels, and air ports are arranged at two ends of the air channel and communicated with indoor air. The phase-change material provides basic heating quantity for indoor heating through upward heat conduction and convection, and meanwhile, the heating quantity of the phase-change material is adjusted by adjusting and controlling the air exchange rate of the air channel and the indoor air exchange rate, so that the effect of further adjusting and controlling the heating rate is achieved. Although the utility model provides a phase transition floor energy storage mode heating rate adjust shortcoming such as inconvenient, phase change material availability factor is limited to effectively reduced the decurrent heat loss of floor heating, its packaging mode who does not clearly and definitely give phase change material has greatly influenced this utility model's implementation. Secondly, the energy storage form of the floor is single, the whole set of system only serves for heating in winter, the application across seasons cannot be realized, the system utilization rate is low, and the waste of resources is caused.
Chinese patent No. 201410632282.7 discloses a phase change material temperature regulation system capable of accumulating cold and heat, which is provided with a phase change material layer in a floor layer, a ventilation layer with a ventilation window is arranged below the floor layer, the phase change material layer is composed of two end opening closed sleeves arranged in sequence, a mixed phase change material with a phase change temperature of 15 ℃ -30 ℃ is filled between the sleeves and the conduit, one end of the sleeve is also provided with an interface, one end of the conduit is connected with a water separator respectively, and the other end is connected with the water collector respectively. The utility model discloses can realize striding season and use, the heating in winter, the room temperature is adjusted in the assistance of summer, has the air quality of improving, practices thrift advantages such as energy consumption. However, the phase change temperature range of the mixed phase change material is wide, and the phase change material has poor heat storage and release effects and low applicability and only plays a role in auxiliary temperature regulation when used in cross-season, particularly in summer, so that the utilization rate of the system is low; the phase change material layer has a complex structure, and the floor layer occupies a large space and is difficult to popularize and apply in a large range.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a splicing type double-layer phase change heat storage and cold accumulation floor which has simple structure and solves the problems of single energy storage form, poor seasonal use effect, complex structure and difficult popularization of the floor; an effective way is provided for heating in winter and utilizing solar energy or valley price electricity, and the energy consumption is reduced for cooling buildings in summer.
The utility model discloses a splicing type double-layer phase-change heat-storage and cold-storage floor, which at least comprises a keel layer composed of a floor decoration layer 1 and a keel 4 and a basic structure layer 10; the air channel is characterized in that two layers of galvanized sheet iron, namely an upper layer galvanized sheet iron 21 and a lower layer galvanized sheet iron 22, which are pre-pressed with grooves are placed on the keel 4 to form the air channel 3; water pipes 5 and an upper layer of phase change material 71 are alternately arranged in the prefabricated grooves of the upper layer galvanized sheet iron 21; and a lower layer of phase change material 72 is placed in the groove of the lower layer of galvanized sheet iron 22.
The phase change temperature of the upper phase change material 71 is 28-35 ℃, and the phase change temperature of the lower phase change material 72 is 18-25 ℃.
The upper-layer phase-change material 71 and the lower-layer phase-change material 72 are both made of organic phase-change materials, are packaged in a nylon bag in vacuum and are then tightly arranged in the prefabricated grooves of the galvanized sheet iron, and the radial dimension of the packaged and molded phase-change nylon bag is the same as the width of the corresponding prefabricated grooves of the galvanized sheet iron.
The bottom of the air channel 3 is paved with a reflecting film 8.
And a heat insulation layer 9 is laid on the foundation structure layer 10.
The upper phase change material 71 is in close contact with the floor decor layer 1.
And a heat insulation pad 6 is arranged between the contact surfaces of the upper galvanized sheet iron 21 and the lower galvanized sheet iron 22.
And air ports at two ends of the air channel 3 are provided with openable air valves 11, and the air ports are communicated with the indoor space and the outdoor space through a building air channel.
The keel 4 is made of a material with low heat conductivity coefficient and high strength.
The water pipe 5 is a PVC hose with the outer diameter of 6-10 mm.
The thickness of the galvanized sheet iron 2 is 0.8 mm.
The floor decorative layer 1 is a solid wood composite floor or a reinforced composite floor with the thickness of 6.5 mm-8.5 mm.
The utility model has the advantages of: the floor board is made of phase-change materials with different phase-change temperatures, so that the best working conditions of cooling and heating can be met, and the floor board has a good effect in cross-season use. The radiation heating can be realized in winter, and the air supply and cooling can be realized by utilizing the air channel in summer, so that the heat comfort requirement of a human body is met. The whole floor is simple in structure, and the paving process is splicing dry paving; the phase-change material is vacuum-packaged by the nylon bag, so that the floor has the advantages of difficulty in leakage, good heat storage and release effects and the like, is convenient to move and transport after being packaged, and is pre-pressed and formed in advance by the galvanized sheet iron, so that the floor is convenient and quick to pave and is favorable for popularization and use of the floor.
Drawings
Fig. 1 is a schematic structural view of a spliced double-layer phase change heat storage and cold accumulation floor of the utility model;
FIG. 2 is a schematic view of the spliced double-layer phase-change heat-storage and cold-storage floor of the present invention;
FIG. 3 is a schematic view of indoor cooling in summer and daytime according to an embodiment of the present invention;
fig. 4 is a schematic view of the phase change material cold accumulation in summer at night.
Reference numerals:
1. floor decorative layer, 21, upper galvanized sheet iron, 22, lower galvanized sheet iron, 3, air channel, 4, keel, 5, water pipe, 6, heat insulation pad, 71, upper phase change material, 72, lower phase change material, 8, reflecting film, 9, heat insulation layer, 10, foundation structure layer, 11 and air valve.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the accompanying drawings and embodiments.
As shown in fig. 1 to fig. 2, the specific structure and the positional relationship of each part of the spliced double-layer phase change heat storage and cold accumulation floor of the present invention are shown. The specific embodiments are described as follows:
the floor decorative layer 1 is laid on the galvanized sheet iron, and the floor decorative layer 1 is a solid wood composite floor or a reinforced composite floor with the thickness of 6.5-8.5 mm. The thickness of the galvanized sheet iron is 0.8mm, and grooves with different shapes are processed in advance according to splicing sizes. Two layers of prefabricated galvanized sheet iron are placed on the keel 4, a heat insulation pad 6 is placed between the contact surfaces of the upper galvanized sheet iron 21 and the lower galvanized sheet iron 22, and the conduction rate of heat passing through the upper galvanized sheet iron 21 to the lower galvanized sheet iron 22 is slowed down under the working condition of heating in winter. The galvanized sheet iron and the keel 4 form an air channel 3. The keel 4 is made of wood, engineering plastics or other materials with low heat conductivity coefficient and high strength. Phase change materials 71 with the phase change temperature of 28-35 ℃ and water pipes 5 are alternately arranged in corresponding grooves of the upper galvanized sheet iron 21, the phase change materials 72 with the temperature of 18-25 ℃ are completely placed in the grooves of the lower galvanized sheet iron 22, and due to the support of the keel 4, the water pipes 5 and the phase change materials do not bear the pressure from the upper part of the floor, so that PVC hoses with the outer diameter of 6-10 mm are selected for the water pipes 5, the PVC hoses are good in tensile strength and wide in applicable temperature range, are arranged on the galvanized sheet iron 21, are large in contact area, are good in heat conduction effect, and are high in radiation efficiency of the floor; the phase-change material is vacuum-packaged by a nylon bag, and the specific packaging process comprises the following steps: and melting the phase-change material, filling the phase-change material into a nylon bag prepared in advance, vacuumizing and carrying out hot melting and sealing by using a vacuum packaging machine after the phase-change material is solidified, wherein the radial dimension of the vacuum packaging machine is the same as the width of a corresponding prefabricated groove in the galvanized sheet iron. And the packaged phase change nylon bags are closely arranged in parallel in a prefabricated groove of the galvanized sheet iron. The construction process is completed by the modularized splicing of all the components, the floor is simple in structure, and the popularization and the use of the floor are facilitated. The phase-change nylon bag is required to be in close contact with the galvanized sheet iron and the floor decorative layer 1, so that the phase-change material is convenient to store and release heat. The air ports at the two ends of the air channel 3 are provided with air valves 11 which can be opened and closed, and the air ports are communicated with the indoor and outdoor through the building air channel. Reflective membrane 8 is laid to air passage 3's bottom, reflective membrane 8 is made with aluminium foil or other high reflectivity materials, reduces phase change material 7B to the radiant heat transfer of heat insulation layer 9, and the heat leakage quantity of stratum downwards through heat insulation layer 9 is very reduced like this, heat insulation layer 9 is laid on basic structure layer 10, makes with insulation material.
The working process is as follows:
heating in winter: while heating medium flows through the water pipe 5 for indoor radiation heating, the galvanized sheet iron 21 with good heat conduction performance is used for storing heat for the upper phase-change material 71. Because the phase-change temperature of the lower phase-change material 72 is low, the lower phase-change material 7B is melted and stored heat through the heat radiation of the upper galvanized sheet 21, the heat conduction of the heat-insulating pad 6 and the lower galvanized sheet 22 and the heat convection in the air channel 3, so that the heat storage capacity of the whole floor is greatly increased, and the heat conducted to the base structure layer 10 is greatly reduced due to the existence of the air channel 3 and the action of the reflecting film 8. After heat storage, in a time period without providing a heating medium, the phase-change material releases heat through condensation, the temperature of the floor layer is continuously maintained, indoor radiation heating is performed, and an effective way is provided for utilizing solar energy and solving the problems of peak-valley difference and the like of a power supply network. When the system operates intermittently, in the initial stage of heating, the speed of raising the room temperature by floor radiation is slow, and if necessary, indoor air can be introduced into the air channel 3 for convective heat exchange, so that hot air is directly provided indoors, and the purpose of rapidly raising the room temperature is achieved.
Cooling in summer: firstly, under the condition of not providing a refrigerant, the air valve 11 is closed to one side of the outdoor air channel in the daytime, the air channel 3 is communicated with the indoor space as shown in fig. 3, indoor air is introduced into the air channel 3, the lower phase-change material 72 melts and stores heat, the temperature of the indoor air is reduced through convection heat exchange, the phase-change temperature of the lower phase-change material 72 is low, and the indoor cold supply effect is good. The upper layer of phase change material 71 also helps to reduce room temperature fluctuations if the room temperature is too hot. The air valve 11 is closed to one side of the indoor air channel at night, the air channel 3 is communicated with the outdoor space as shown in the attached drawing 4, outdoor cold air is introduced into the air channel 3, the phase-change material is cooled and solidified to release heat, and the heat stored in the phase-change material in the daytime is transferred to the outdoor space. The phase-change material plays a role in cold accumulation in the whole process, so that the aim of low energy consumption cold supply of buildings in summer is fulfilled. Secondly, under the condition of insufficient cold storage quantity, a refrigerant is introduced into the water pipe 5 to supply cold for room radiation, so that a good indoor thermal comfortable environment is created.
Claims (10)
1. A spliced double-layer phase-change heat-storage and cold-storage floor at least comprises a floor decoration layer (1), a keel layer formed by keels (4) and a basic structure layer (10); the air channel is characterized in that two layers of galvanized sheet iron, namely an upper layer galvanized sheet iron (21) and a lower layer galvanized sheet iron (22), with grooves pressed in advance are placed on the keel (4) to form the air channel (3); water pipes (5) and an upper layer of phase change material (71) are alternately arranged in the prefabricated grooves of the upper layer of galvanized sheet iron (21); and a lower-layer phase change material (72) is arranged in the groove of the lower-layer galvanized sheet iron (22).
2. The spliced double-layer phase-change heat-storage and cold-storage floor as claimed in claim 1, wherein the phase-change temperature of the upper layer phase-change material (71) is 28 ℃ to 35 ℃, and the phase-change temperature of the lower layer phase-change material (72) is 18 ℃ to 25 ℃.
3. The spliced double-layer phase-change heat-storage and cold-storage floor as claimed in claim 1, wherein the upper layer phase-change material (71) and the lower layer phase-change material (72) are both organic phase-change materials, and are tightly arranged in the prefabricated grooves of the galvanized sheet iron after being vacuum-packaged by nylon bags, and the radial dimension of the packaged phase-change nylon bags is the same as the width of the corresponding prefabricated grooves of the galvanized sheet iron.
4. The spliced double-layer phase-change heat-storage and cold-storage floor as claimed in claim 1, wherein the bottom of the air channel (3) is paved with a reflecting film (8).
5. The splicing type double-layer phase-change heat storage and cold accumulation floor as claimed in claim 1, wherein the heat insulation layer (9) is laid on the base structure layer (10).
6. The spliced double-layer phase-change heat-storage and cold-storage floor as claimed in claim 1, wherein the upper layer phase-change material (71) is in close contact with the floor decoration layer (1).
7. The spliced double-layer phase-change heat-storage and cold-storage floor as claimed in claim 1, wherein a heat insulation pad (6) is arranged between the contact surfaces of the upper galvanized sheet iron (21) and the lower galvanized sheet iron (22).
8. The splicing type double-layer phase-change heat-storage and cold-storage floor as claimed in claim 1, wherein the air ports at the two ends of the air channel (3) are provided with openable and closable air valves (11), and the air ports are communicated with the indoor and outdoor through the building air duct.
9. The splicing type double-layer phase-change heat-storage and cold-storage floor as claimed in claim 1, wherein the keel (4) is made of a material with low thermal conductivity and high strength.
10. The splicing type double-layer phase change heat storage and cold accumulation floor as claimed in claim 1, wherein the water pipe (5) is a PVC hose with an outer diameter of 6 mm-10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921071126.2U CN211114586U (en) | 2019-07-10 | 2019-07-10 | Split joint type double-layer phase change heat storage and cold accumulation floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921071126.2U CN211114586U (en) | 2019-07-10 | 2019-07-10 | Split joint type double-layer phase change heat storage and cold accumulation floor |
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| Publication Number | Publication Date |
|---|---|
| CN211114586U true CN211114586U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921071126.2U Expired - Fee Related CN211114586U (en) | 2019-07-10 | 2019-07-10 | Split joint type double-layer phase change heat storage and cold accumulation floor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374291A (en) * | 2019-07-10 | 2019-10-25 | 天津大学 | Spliced bilayer phase-transition heat-storage cold-storage floor |
| CN114412042A (en) * | 2022-02-17 | 2022-04-29 | 盐城工学院 | Combined prefabricated cement sheet assembled energy storage floor system |
-
2019
- 2019-07-10 CN CN201921071126.2U patent/CN211114586U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374291A (en) * | 2019-07-10 | 2019-10-25 | 天津大学 | Spliced bilayer phase-transition heat-storage cold-storage floor |
| CN114412042A (en) * | 2022-02-17 | 2022-04-29 | 盐城工学院 | Combined prefabricated cement sheet assembled energy storage floor system |
| CN114412042B (en) * | 2022-02-17 | 2024-06-25 | 盐城工学院 | Assembled energy storage floor system of prefabricated cement sheet metal of combination |
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Granted publication date: 20200728 |