Phase change heat storage floor

Abstract

The utility model relates to the technical field of building materials, in particular to a phase change heat storage floor which comprises a floor layer, a heat insulation layer, a phase change heat storage layer packaged in a heat preservation mode and a heating layer packaged in an insulation mode. The floor layer, the phase change heat storage layer and the heat insulation layer are sequentially stacked from top to bottom. The heating layer is arranged in the center of the interior of the phase change heat storage layer, and the electric control heating end of the heating layer is led out of the side face of the phase change heat storage layer; the phase change heat storage floor is high in heat storage efficiency and safety, modular installation is facilitated, the installation efficiency is improved, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of building materials, in particular to a phase-change heat storage floor. Background Art

[0002] Phase change heat storage floor is one of the commonly used new building materials. It stores and releases heat by utilizing the phase change process of matter, which can reduce the use of coal resources for coal-fired heating and avoid the emission of dust and harmful gases caused by coal-fired heating. It can significantly reduce the energy consumption of buildings and effectively reduce the operating costs of buildings.

[0003] Existing phase change heat storage floors are usually composed of a floor layer, a phase change material layer, a heating layer and an insulation layer stacked from top to bottom, and the floor heating function is achieved through an electrically controlled heating layer; this results in direct contact between the heating layer and the phase change material layer. When the phase change material layer contains more carbon material, it is easy to conduct electricity, and the floor has a risk of leakage; it also results in direct contact between the heating layer and the insulation layer, which easily causes the heat generated by the heating layer to be lost from the insulation layer side, and the heat storage efficiency of the phase change material layer is low; further, the separation between the layers of the phase change heat storage floor is not obvious, which is easy to have a negative impact on each other.

[0004] More importantly, since the layers of the phase change heat storage floor structure are not clearly separated, if it is installed in a modular manner, construction errors will cause misalignment of the corresponding layers between modules, which is more likely to cause leakage and heat loss. Therefore, it can only be installed on site layer by layer, and maintenance is difficult, which reduces installation efficiency and increases maintenance costs. Utility Model Content

[0005] In view of the above-mentioned defects, the purpose of the utility model is to propose a phase change heat storage floor, which has high heat storage efficiency and safety, is easy to install in a modular manner, improves installation efficiency and reduces maintenance costs.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A phase-change heat storage floor, comprising a floor layer, a heat insulation layer, a heat insulation packaged phase-change heat storage layer and an insulation packaged heating layer; the floor layer, the phase-change heat storage layer and the heat insulation layer are stacked in sequence from top to bottom;

[0008] The heating layer is arranged at the inner center of the phase-change heat storage layer, and the electrically controlled heating end of the heating layer is led out to the side of the phase-change heat storage layer.

[0009] Furthermore, the phase change heat storage layer includes a first phase change layer, a second phase change layer and a heat storage plastic film; the first phase change layer, the heat generating layer and the second phase change layer are stacked in sequence from top to bottom, the heat storage plastic film wraps and seals the first phase change layer, the heat generating layer and the second phase change layer, and the electrically controlled heating end is led out from the side of the heat generating layer to the outside of the heat storage plastic film.

[0010] Furthermore, the heating layer includes a first electrode, a second electrode, a heating element and a heating plastic film; the first electrode is electrically connected to the left side of the heating element, the second electrode is electrically connected to the right side of the heating element, the heating plastic film wraps and seals the first electrode, the second electrode and the heating element, and the front ends of the first electrode and the second electrode pass through the heating plastic film and the heat storage plastic film to lead out and serve as the electrically controlled heating end.

[0011] Furthermore, the heating element is made of carbon nanotube material.

[0012] Furthermore, the heating element is a flexible heating element.

[0013] Furthermore, the heating element is carbon nanotube heating paper.

[0014] Furthermore, the first phase change layer and the second phase change layer both use solid-solid composite phase change energy storage materials.

[0015] Furthermore, the heat storage plastic sealing film and the heat generating plastic sealing film are both made of waterproof insulating materials.

[0016] Furthermore, the heat storage plastic sealing film is an aluminum-plastic film.

[0017] Furthermore, the heat-generating plastic sealing film is a PI film.

[0018] The technical solution provided by the utility model may have the following beneficial effects: the heat-generating layer with good insulation packaging is arranged in the inner center of the phase-change heat storage layer, so that the heat-generating layer avoids direct contact with the conductive material of the phase-change heat storage layer during the heat generation of the phase-change heat storage layer, avoids leakage, improves safety, and also avoids the heat-generating layer from directly contacting other layers except the phase-change heat storage layer to dissipate heat, and concentrates the heat on the phase-change heat storage layer to improve the heat storage efficiency; the phase-change heat storage layer with good insulation packaging is arranged between the floor layer and the heat-insulating layer, so as to further avoid the heat loss of the phase-change heat storage layer and at the same time, the phase-change heat storage layer is connected to the floor layer and the heat-insulating layer. The temperature layers are clearly separated so that the layers do not affect each other; on this basis, the electrically controlled heating end of the heating layer is led out to the side of the phase change heat storage layer for heating control. Therefore, in addition to being laid and installed layer by layer on site, the phase change heat storage floor can also be manufactured into a phase change heat storage floor module with this structure. Multiple phase change heat storage floor modules are spliced ​​and installed on site. The electrically controlled heating ends between the modules are electrically connected to each other, so that large-area laying can be achieved, and the installation efficiency is higher. Moreover, the modules work independently for heating and heat storage, and will not affect each other due to construction errors. If a single module is damaged, it can be replaced individually, which is simple to repair and has lower maintenance costs. More importantly, the phase change heat storage floor modules can be laid over a large area through electrical connection methods such as series connection, parallel connection, and combination of series and parallel connection of the electrically controlled heating ends, and the splicing and installation are highly flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a phase change heat storage floor in one embodiment of the utility model.

[0020] Figure 2 Yes Figure 1 A schematic diagram of the cross-sectional structure of a phase change heat storage floor is shown.

[0021] Among them: floor layer 1, thermal insulation layer 3, phase change heat storage layer 2, heating layer 4, electrically controlled heating end 5, first phase change layer 21, second phase change layer 22, heat storage plastic film 23, first electrode 41, second electrode 42, heating element 43, heating plastic film 44. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of the features, and are used to distinguish and describe features, without distinction of order or importance.

[0024] In the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0025] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0026] Combine the following Figure 1 to Figure 2 , describing a phase change heat storage floor according to an embodiment of the utility model.

[0027] A phase-change heat storage floor comprises a floor layer 1, a heat insulation layer 3, a heat insulation packaged phase-change heat storage layer 2 and an insulation packaged heating layer 4; the floor layer 1, the phase-change heat storage layer 2 and the heat insulation layer 3 are stacked in sequence from top to bottom;

[0028] The heat generating layer 4 is disposed in the center of the phase change heat storage layer 2 , and the electrically controlled heat generating end 5 of the heat generating layer 4 is led out to the side surface of the phase change heat storage layer 2 .

[0029] The utility model proposes a preferred embodiment of a phase change heat storage floor, such as Figures 1 to 2As shown, the insulating and packaged heating layer 4 is arranged in the center of the phase change heat storage layer 2, so that the heating layer 4 avoids direct contact with the conductive material of the phase change heat storage layer 2 during the heating process of the phase change heat storage layer 2, thereby avoiding leakage and improving safety. It also avoids the heating layer 4 from directly contacting other layers except the phase change heat storage layer 2 to dissipate heat, and concentrates the heat on the phase change heat storage layer 2 to improve the heat storage efficiency; the heat-insulating and packaged phase change heat storage layer 2 is then arranged between the floor layer 1 and the heat-insulating and thermal-preserving layer 3, so as to further avoid the heat loss of the phase change heat storage layer 2, and at the same time, the phase change heat storage layer 2, the floor layer 1 and the heat-insulating and thermal-preserving layer 3 are The layers are clearly separated so that they do not affect each other. On this basis, the electrically controlled heating end 5 of the heating layer 4 is led out to the side of the phase change heat storage layer 2 for heating control. In addition to being laid and installed layer by layer on site, the phase change heat storage floor can also be manufactured into a phase change heat storage floor module with this structure. Multiple phase change heat storage floor modules are spliced ​​and installed on site. The electrically controlled heating ends 5 between the modules are electrically connected to each other to achieve large-area laying, which has higher installation efficiency. The modules heat and store heat independently and will not affect each other due to construction errors. If a single module is damaged, it can be replaced individually, which is simple to repair and has lower maintenance costs. More importantly, the phase change heat storage floor modules can be laid over a large area through electrical connection methods such as series connection, parallel connection, and a combination of series and parallel connection of the electrically controlled heating ends 5, and the splicing and installation are highly flexible.

[0030] Furthermore, the phase change heat storage layer 2 includes a first phase change layer 21, a second phase change layer 22 and a heat storage plastic film 23; the first phase change layer 21, the heating layer 4 and the second phase change layer 22 are stacked in sequence from top to bottom, the heat storage plastic film 23 wraps the first phase change layer 21, the heating layer 4 and the second phase change layer 22, and the electrically controlled heating end 5 is led out from the side of the heating layer 4 to the outside of the heat storage plastic film 23.

[0031] In this embodiment, in order to make the phase change energy storage material of the phase change heat storage layer 2 heated more evenly, and to have higher heat storage efficiency and room temperature comfort, two phase change layers, a first phase change layer 21 and a second phase change layer 22, are provided, and the first phase change layer 21, the heating layer 4 and the second phase change layer 22 are stacked in sequence from top to bottom, so that the heat generated on the upper and lower surfaces of the heating layer 4 can be fully absorbed by the first phase change layer 21 and the second phase change layer 22 to achieve surface heating, thereby improving the heat storage efficiency of the first phase change layer 21 and the second phase change layer 22; then, the heat storage plastic film 23 is wrapped to plastic seal the first phase change layer 21, the heating layer 4 and the second phase change layer 22, and the electrically controlled heating end 5 is led out from the side of the heating layer 4 to the outside of the heat storage plastic film 23, thereby achieving thermal insulation packaging, better constant temperature effect and reduced energy consumption.

[0032] Furthermore, the heating layer 4 includes a first electrode 41, a second electrode 42, a heating element 43 and a heating plastic film 44; the first electrode 41 is electrically connected to the left side of the heating element 43, and the second electrode 42 is electrically connected to the right side of the heating element 43. The heating plastic film 44 wraps and seals the first electrode 41, the second electrode 42 and the heating element 43. The front ends of the first electrode 41 and the second electrode 42 pass through the heating plastic film 44 and the heat storage plastic film 23 to be led out and used as the electrically controlled heating end 5.

[0033] In this embodiment, in order to realize surface heating of the first phase change layer 21 located above and the second phase change layer 22 located below, the heating layer 4 is mainly composed of a heating element 43, and a first electrode 41 and a second electrode 42 are respectively arranged on the left and right sides of the heating element 43, so that when heating, the heating element 43 is quickly heated as a whole by energizing the two electrodes to form surface heating; finally, the first electrode 41, the second electrode 42 and the heating element 43 are wrapped and sealed with a heating plastic film 44 to realize insulation packaging to avoid leakage caused by electrical conduction with the outside world.

[0034] Furthermore, the heating element 43 is made of carbon nanotube material.

[0035] In this embodiment, the advantages of carbon nanotube materials are: first, the heat generation can be adjusted proportionally by adjusting the electric control voltage of the electrode, and the electric control method is flexible; second, the heating specifications can be adjusted by adjusting the density of the carbon nanotubes, and the specifications of the phase change heat storage floor can be easily changed; third, the partial fracture of the carbon nanotubes will not cause the overall heating to stop, and the reliability is high. Therefore, the heating element 43 is preferably made of carbon nanotube material.

[0036] Furthermore, the heating element 43 is a flexible heating element.

[0037] In this embodiment, in order to keep the heating element 43 in close contact with the first phase change layer 21 and the second phase change layer 22 when packaged, thereby improving the heating efficiency and the comfort of the floor, the heating element 43 is preferably a flexible heating element.

[0038] Furthermore, the heating element 43 is a carbon nanotube heating paper.

[0039] In this embodiment, in combination with the carbon nanotube material to be selected for the heating element 43 and the requirement for a flexible heating element, the heating element 43 can be designed as carbon nanotube heating paper, which can meet all requirements while being smaller in size.

[0040] Furthermore, the first phase change layer 21 and the second phase change layer 22 are both made of solid-solid composite phase change energy storage materials.

[0041] In the present embodiment, in order to ensure that the first phase change layer 21 and the second phase change layer 22 remain in a solid state when the temperature reaches the phase change point and the morphology changes, and still maintain a supporting effect on the floor layer 1, the first phase change layer 21 and the second phase change layer 22 preferably use solid-solid composite phase change energy storage materials, such as pure paraffin and graphite composite materials. Pure paraffin, as an organic phase change energy storage material, will change from solid to liquid during the phase change process, but by combining it with adsorption carrier graphite, a solid-solid composite phase change energy storage material can be prepared. The solid-solid composite phase change energy storage material can maintain a macroscopic solid state after the phase change, that is, the paraffin still melts into a liquid state at the microscopic level, but is adsorbed in the graphite voids. At the macroscopic level, the graphite is solid and the overall phase is solid.

[0042] Furthermore, the heat storage plastic sealing film 23 and the heat generating plastic sealing film 44 are both made of waterproof insulating materials.

[0043] In this embodiment, the waterproof insulating material has insulation and waterproof properties as well as a certain heat preservation effect, and can be used as a heat storage plastic sealing film 23 and a heat-generating plastic sealing film 44 to meet packaging requirements.

[0044] Furthermore, the heat storage plastic sealing film 23 is an aluminum plastic film.

[0045] In this embodiment, the heat storage plastic film 23 preferably uses aluminum-plastic film among waterproof insulating materials, which not only meets the packaging requirements but also has the advantages of oxygen barrier, moisture resistance and puncture resistance. It is more suitable for separation from the outside world and can clearly separate the floor layer 1, the heat insulation layer 3 and the adjacent phase change heat storage floor module.

[0046] Furthermore, the heat-generating plastic sealing film 44 is a PI film.

[0047] In this embodiment, the heating plastic sealing film 44 is preferably made of PI film among waterproof insulating materials. PI film is a thin-film waterproof insulating material with the best insulation properties. While meeting the insulation packaging requirements, the film does not hinder the heating element 43 from fitting closely with the first phase change layer 21 and the second phase change layer 22.

[0048] Other structures and operations of a phase change heat storage floor according to an embodiment of the utility model are known to ordinary technicians in the field and will not be described in detail here.

[0049] In the description of this specification, the description with reference to the terms "embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0050] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A phase change heat storage floor, characterized in that: It includes a floor layer, a heat insulation layer, a heat preservation encapsulated phase change heat storage layer and an insulation encapsulated heating layer; The floor layer, the phase change heat storage layer and the heat insulation layer are stacked in sequence from top to bottom; The heating layer is arranged at the inner center of the phase-change heat storage layer, and the electrically controlled heating end of the heating layer is led out to the side of the phase-change heat storage layer.

2. A phase change heat storage floor according to claim 1, characterized in that: The phase change heat storage layer includes a first phase change layer, a second phase change layer and a heat storage plastic film; the first phase change layer, the heat generating layer and the second phase change layer are stacked in sequence from top to bottom, the heat storage plastic film wraps and seals the first phase change layer, the heat generating layer and the second phase change layer, and the electrically controlled heating end is led out from the side of the heat generating layer to the outside of the heat storage plastic film.

3. The phase change heat storage floor according to claim 2, characterized in that: The heating layer includes a first electrode, a second electrode, a heating element and a heating plastic film; the first electrode is electrically connected to the left side of the heating element, the second electrode is electrically connected to the right side of the heating element, the heating plastic film wraps and seals the first electrode, the second electrode and the heating element, and the front ends of the first electrode and the second electrode pass through the heating plastic film and the heat storage plastic film to lead out and serve as the electrically controlled heating end.

4. The phase change heat storage floor according to claim 3, characterized in that: The heating element is made of carbon nanotube material.

5. The phase change heat storage floor according to claim 3, characterized in that: The heating element is a flexible heating element.

6. The phase change heat storage floor according to claim 3, characterized in that: The heating element is carbon nanotube heating paper.

7. The phase change heat storage floor according to claim 2, characterized in that: The first phase change layer and the second phase change layer both adopt solid-solid composite phase change energy storage material.

8. The phase change heat storage floor according to claim 3, characterized in that: The heat storage plastic sealing film and the heat generating plastic sealing film are both made of waterproof insulating materials.

9. The phase change heat storage floor according to claim 2, characterized in that: The heat storage plastic sealing film is an aluminum plastic film.

10. The phase change heat storage floor according to claim 3, characterized in that: The heat-generating plastic sealing film is a PI film.

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