Rotatable prefabricated heat collection wall and building

Abstract

The wall body is arranged in a hollow area of an outer wall of the building and comprises a prefabricated wall plate and a rotating shaft, a heat storage layer, a structural layer and a heat insulation layer are sequentially stacked to form the prefabricated wall plate, and the rotating shaft penetrates through the structural layer so that the prefabricated wall plate can rotate around the rotating shaft. When sunlight heat needs to be absorbed, the prefabricated wall panel rotates to be switched to a heat collection state, the heat storage layer faces the exterior of the building, and therefore the sunlight heat is fully absorbed; when the prefabricated wall panel needs to release the stored heat into the building, the prefabricated wall panel rotates to be switched to the heat release state, the heat storage layer faces the interior of the building, and therefore the stored heat is released into the interior of the building, and the purpose of supplying heat to the interior of the building is achieved. Therefore, the rotatable prefabricated heat collecting wall body is beneficial for achieving the purposes of reducing indoor heating energy consumption and achieving low-carbon and healthy building. In addition, the wall body is a prefabricated part, so that the construction process is simplified, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction, and particularly relates to a rotatable prefabricated heat-collecting wall and a building. Background Art

[0002] As an important part of sustainable development in contemporary society, low-carbon and energy-saving buildings are increasingly receiving widespread attention around the world. As the main link of energy consumption, low-carbon and energy-saving heating and heat supply are of vital importance to reducing carbon emissions and improving energy efficiency.

[0003] In traditional buildings, independent heat sources are generally used for indoor heating, such as heating and air conditioning, while the technical focus of the building's exterior walls is mainly on thermal insulation. This heating method consumes a lot of energy and cannot make full use of local solar thermal resources, which is not conducive to achieving the goal of green, low-carbon and energy-saving. Utility Model Content

[0004] The utility model discloses a rotatable prefabricated heat-collecting wall and a building with the wall, which can fully utilize solar heat radiation to heat the interior of the building.

[0005] In order to achieve the above technical effects, the utility model discloses a rotatable prefabricated heat collection wall, which is applied to the outer wall of a building. The outer wall is provided with a hollow area, including:

[0006] A prefabricated wall panel, wherein the prefabricated wall panel is arranged corresponding to the hollow area, and the prefabricated wall panel comprises a heat storage layer, a structural layer and a heat insulation layer which are sequentially stacked along the thickness direction of the prefabricated wall panel, wherein the heat storage layer is used to face the outside of the building to absorb solar heat when the prefabricated wall panel is in a heat collection state, and / or to face the inside of the building to release heat to the inside of the building when the prefabricated wall panel is in a heat release state; the structural layer is used to support the dead weight of the prefabricated wall panel; and the heat insulation layer is used to prevent the heat of the heat storage layer from passing through the prefabricated wall panel;

[0007] A rotating shaft is provided in the structural layer along a tangent direction of the structural layer, and the rotating shaft passes through the centroid of the structural layer, and both ends of the rotating shaft are respectively connected to the inner wall of the hollow area, and the rotating shaft is used to cooperate with the prefabricated wall panel to rotate so that the prefabricated wall panel can switch between the heat collection state and the heat release state.

[0008] As an optional embodiment, there are multiple prefabricated wall panels and rotating shafts in the hollow area, and multiple rotating shafts are arranged in parallel along the inner wall of the hollow area. Multiple wall bodies are arranged at intervals along the inner wall of the hollow area. When in the heat collection state and / or the heat release state, the surfaces of the multiple insulation layers are coplanar and parallel to the surface of the outer wall.

[0009] As an optional embodiment, the sides of the heat storage layer, the structural layer and the insulation layer are spliced ​​to form a side of a wall panel, the side of the wall panel is parallel to the axis of the rotating shaft, and a plurality of first sealing strips are arranged on the side of the wall panel, the first sealing strips extend along the axial direction of the rotating shaft, and the plurality of first sealing strips are arranged at intervals along the thickness direction of the prefabricated wall panel, and when in the heat collection state and / or the heat release state, the first sealing strips of adjacent prefabricated wall panels are staggered so that the sides of adjacent prefabricated wall panels are engaged with each other.

[0010] As an optional embodiment, it also includes an outer frame, which is in contact with the inner wall of the hollow area, the prefabricated wall panel is arranged corresponding to the outer frame, the rotating shaft is connected to the outer frame, the outer frame encloses an installation space, the two ends of the rotating shaft are respectively connected to the outer frame, and multiple prefabricated wall panels are located in the same installation space, the outer frame has a first surface, the first surface is parallel to the axis of the rotating shaft, a second sealing strip is provided on the first surface, the second sealing strip extends along the axial direction of the rotating shaft, and when in the heat collection state and / or the heat release state, the second sealing strip and the first sealing strip are staggered and meshed with each other.

[0011] As an optional implementation, the outer frame includes a second surface, the second surface is perpendicular to the axis of the rotating shaft, and the second surface is connected to the first surface, and the second surface is provided with a third sealing strip, and the third sealing strip extends along the midline direction of the width of the second surface;

[0012] The top surfaces of the heat storage layer, the structural layer 12 and the heat insulation layer 13 are spliced ​​to form a wall panel top surface 15, and the bottom surfaces of the heat storage layer 11, the structural layer 12 and the heat insulation layer 13 are spliced ​​to form a wall panel bottom surface 16, and the wall panel top surface 15 and the wall panel bottom surface 16 are perpendicular to the axis of the rotating shaft 2. The wall panel top surface 15 and the wall panel bottom surface 16 are provided with the fourth sealing strip 17. The fourth sealing strip 17 extends along the center line direction of the thickness of the prefabricated wall panel 1; the fourth sealing strip is arranged opposite to the third sealing strip, and the third sealing strip and the fourth sealing strip are used to close the gap between the wall panel top surface and the second surface, and between the wall panel bottom surface and the second surface;

[0013] The second surface width refers to the distance from one side to the other side of the second surface along the direction from the inside of the building to the outside of the building.

[0014] As an optional embodiment, it further includes a locking device, which is arranged between adjacent prefabricated wall panels and / or between the prefabricated wall panels and the outer frame, and is used to lock the prefabricated wall panels.

[0015] As an optional implementation, a reflective film is laid between the heat storage layer and the structural layer, and the reflective film is used to prevent heat from being conducted from the heat storage layer to the structural layer.

[0016] As an optional implementation, a heat absorption layer is provided on the surface of the heat storage layer.

[0017] In a second aspect, the utility model further discloses a building, comprising the rotatable prefabricated solar collector wall described in any one of the above embodiments.

[0018] As an optional implementation, the building further includes a water retaining plate and a drainage trough, wherein the water retaining plate is arranged at the edge of the hollow area, and the drainage trough is arranged corresponding to the water retaining plate.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The rotatable prefabricated heat-collecting wall of the utility model is arranged in the hollow area of ​​the building exterior wall. The wall includes a prefabricated wall panel and a rotating shaft. The prefabricated wall panel is formed by stacking a heat storage layer, a structural layer and a heat insulation layer in sequence. The rotating shaft is arranged in the structural layer so that the prefabricated wall panel can rotate around the rotating shaft. When it is necessary to absorb solar heat, the prefabricated wall panel rotates to switch to the heat collection state, so that the heat storage layer faces the outside of the building, thereby fully absorbing solar heat; when the prefabricated wall panel needs to release the stored heat to the inside of the building, the prefabricated wall panel rotates to switch to the heat release state, so that the heat storage layer faces the inside of the building, thereby releasing the stored heat to the inside of the building, so as to achieve the purpose of heating the inside of the building. It can be seen that the rotatable prefabricated heat-collecting wall of the utility model helps to reduce the energy consumption of indoor artificial heating, reduce heating costs, and achieve the purpose of low-carbon and healthy buildings. In addition, the wall is a prefabricated component, which simplifies the construction process and improves the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A schematic diagram of a rotatable prefabricated heat collecting wall provided in an embodiment of the utility model;

[0023] Figure 2 for Figure 1 A schematic cross-sectional view of the middle prefabricated wall panel along the normal direction of the wall panel side at the rotation axis position;

[0024] Figure 3 It is a schematic cross-sectional view of a rotatable prefabricated solar collector wall in a direction perpendicular to the axis of the rotating shaft;

[0025] Figure 4 for Figure 3 A partial enlarged view of the middle L area;

[0026] Figure 5 The rotatable prefabricated solar collector wall is parallel to the side of the wall panel and is a cross-sectional schematic diagram at the gap between the side of the wall panel and the outer frame;

[0027] Figure 6 It is a partial enlarged view of the M area in the figure;

[0028] Figure 7 Schematic diagram of the setting method of the rotatable prefabricated solar collector wall in the building, wherein (A) is a schematic diagram without adding railings, and (B) is a schematic diagram with adding railings.

[0029] Description of reference numerals:

[0030] Prefabricated solar collector wall, 100; building, 200; exterior wall, 201; railing, 201b; hollow area, 201a; water retaining plate, 202; drainage trough, 203;

[0031] Prefabricated wall panel, 1; heat storage layer, 11; reflective film, 111; heat absorption layer, 112; structural layer, 12; heat insulation layer, 13; decorative layer, 131; wall panel side, 14; first sealing strip, 14a; wall panel top surface, 15; wall panel bottom surface, 16; fourth sealing strip, 17;

[0032] Rotating shaft, 2;

[0033] Outer frame, 3; first surface, 31; second sealing strip, 31a; second surface, 32; third sealing strip, 32a;

[0034] Locking device, 4. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] In the present utility model, the terms "upper", "lower", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings. These terms are mainly used to better describe the present utility model and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to being used to indicate an orientation or positional relationship, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present utility model can be understood according to the specific circumstances. In addition, the terms "set", "provided with", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances. In addition, unless otherwise specified, "multiple" means two or more.

[0037] As an important part of sustainable development in contemporary society, low-carbon and energy-saving buildings are increasingly receiving widespread attention around the world. In order to achieve the goal of low-carbon and energy-saving, the design concept of buildings tends to take full account of the local natural environment and climate conditions at the beginning of the design, and maximize the use of natural light and natural ventilation through reasonable layout and orientation, reducing the dependence on artificial lighting and air-conditioning systems. At the same time, the use of prefabricated components is also emphasized. The production process of prefabricated components is standardized, and advanced production equipment and technology are used to ensure the quality and stability of the components. This enables prefabricated components to better play their role in buildings, simplify construction processes, and improve construction efficiency.

[0038] As the main link of energy consumption, low-carbon and energy-saving heating and heat supply are of vital importance to reducing carbon emissions and improving energy efficiency. In traditional buildings, independent heat sources are generally used for indoor heating, such as heating and air conditioning, while the technical focus of the building's exterior walls is mainly on thermal insulation. This heating method consumes a lot of energy and cannot make full use of local solar thermal resources, which is not conducive to achieving the goal of green, low-carbon and energy-saving.

[0039] Based on this, the utility model discloses a rotatable prefabricated heat-collecting wall and building, which is arranged in the hollow area of ​​the building's exterior wall, including a prefabricated wall panel and a rotating shaft, and the prefabricated wall panel is formed by stacking a heat storage layer, a structural layer and a heat insulation layer in sequence, and the rotating shaft is arranged in the structural layer, so that the prefabricated wall panel can rotate around the rotating shaft, and when it is necessary to absorb solar heat, the prefabricated wall panel rotates to switch to a heat collection state, so that the heat storage layer faces the outside of the building, thereby fully absorbing solar heat; when the prefabricated wall panel needs to release the stored heat to the inside of the building, the prefabricated wall panel rotates to switch to a heat release state, so that the heat storage layer faces the inside of the building, thereby releasing the stored heat to the inside of the building, so as to achieve the purpose of heating the inside of the building. It can be seen that the rotatable prefabricated heat-collecting wall of the utility model helps to reduce the energy consumption of indoor artificial heating, reduce heating costs, and achieve the purpose of low-carbon and healthy buildings. In addition, the wall is a prefabricated component, which simplifies the construction process and improves the construction efficiency.

[0040] The technical solution of the utility model will be further described below in conjunction with embodiments and drawings.

[0041] Please also read Figures 1 to 4 In the first aspect, the utility model discloses a rotatable prefabricated solar collector wall 100, which is applied to the exterior wall of a building. The exterior wall is provided with a hollow area. The rotatable prefabricated solar collector wall 100 includes a prefabricated wall panel 1 and a rotating shaft 2. The prefabricated wall panel 1 can rotate around the rotating shaft 2. The prefabricated wall panel 1 is arranged corresponding to the hollow area. The prefabricated wall panel 1 includes a heat storage layer 11, a structural layer 12 and a heat insulation layer 13 which are stacked in sequence along the thickness direction of the prefabricated wall panel 1. The heat storage layer 11 is used to face the outside of the building to absorb solar heat when the prefabricated wall panel 1 is in a heat collection state, and / or face the inside of the building to release heat to the inside of the building when the prefabricated wall panel 1 is in a heat release state; the structural layer 12 is used to support the dead weight of the prefabricated wall panel 1; the heat insulation layer 13 is used to prevent heat from passing through the prefabricated wall panel 1; the rotating shaft 2 is penetrated in the structural layer 12 along the tangent direction of the structural layer 12, and the two ends of the rotating shaft 2 are respectively connected to the inner wall of the hollow area, and the rotating shaft 2 is used to cooperate with the prefabricated wall panel 1 to rotate so that the prefabricated wall panel 1 can switch between the heat collection state and the heat release state.

[0042] For example, the exterior walls of the building facing east, south and west will be directly exposed to the sun at different times of the day, so the prefabricated heat-collecting wall 100 of this embodiment can be set on the exterior walls facing east, south and west of the building. During the day, especially when exposed to direct sunlight, the prefabricated wall panels 1 switch to the heat-collecting state, and the heat storage layer 11 faces the outside of the building to fully absorb the heat from the sun. At night, all prefabricated wall panels 1 switch to the heat-releasing state, and the heat storage layer 11 faces the inside of the building, using the heat absorbed during the day to heat the room. The heat dissipation area of ​​the prefabricated wall panels 1 is larger than that of the air conditioner, which is more conducive to uniformly heating the indoor air and improving the uniformity of the indoor space temperature, thereby providing a more comfortable living environment. Or when not exposed to direct sunlight, the prefabricated wall panels 1 located in the east, south and west of the building are switched to the heat-releasing state in turn, so that when the temperature of the previous group of prefabricated wall panels 1 drops, the next group of prefabricated wall panels 1 are supplemented, and it is easier to maintain a constant temperature indoors for a longer period of time, which is conducive to providing a more comfortable living environment.

[0043] Furthermore, the prefabricated wall panels 1 only rely on solar thermal radiation to provide heat to the interior of the building without the need for additional energy, thereby reducing indoor artificial heating energy consumption, lowering heating costs, and achieving the goal of a low-carbon and healthy building.

[0044] In addition, the prefabricated wall panels 1 and the rotating shaft 2 are prefabricated components, which have been manufactured and assembled in the processing factory, and can realize the standardization of the production process, which is conducive to the use of advanced production equipment and technology, thereby ensuring the quality and stability of the prefabricated wall panels 1 and the rotating shaft 2. This enables the prefabricated heat collecting wall 100 of this embodiment to better play its role in the heating system, reduce energy waste, and improve energy utilization efficiency. It also reduces the dependence on on-site construction, reduces environmental pollution such as noise and dust, and improves the safety and efficiency of the construction site. At the same time, the prefabricated wall panels 1 and the rotating shaft 2 are prefabricated components, which are easy to recycle, conform to the concept of environmental protection, and help reduce the generation of construction waste and waste of resources.

[0045] It should be noted that the heat collection state is a state in which the prefabricated wall panel 1 rotates around the rotation axis 2 so that the heat storage layer 11 faces the outside of the building, and the heat release state is a state in which the prefabricated wall panel 1 rotates around the rotation axis 2 so that the heat storage layer 11 faces the inside of the building.

[0046] It should be noted that the prefabricated wall panel 1 can be switched between the heat collection state and the heat release state by manual control and driving, or by a driving device such as a motor to drive the prefabricated wall panel 1 to switch between the heat collection state and the heat release state. Further, on the basis of using a driving device such as a motor, the prefabricated heat collection wall 100 of this embodiment can also be connected to an intelligent control system such as a smart home system, and sensors such as temperature sensors and light sensors can be added to realize intelligent control of the prefabricated heat collection wall 100.

[0047] Optionally, there are multiple prefabricated wall panels 1 and rotating shafts 2 in the hollow area, multiple rotating shafts 2 are arranged in parallel along the inner wall of the hollow area, and multiple walls are arranged at intervals along the inner wall of the hollow area. When in the heat collection state and / or heat release state, the surfaces of multiple insulation layers 13 are coplanar and parallel to the surface of the outer wall. When the building is expected to obtain a higher temperature, it is usually chosen to increase the proportion of the prefabricated heat collection wall 100 in the building facade, but the prefabricated wall panel 1 will sweep across the space inside the building when it rotates, so a single prefabricated wall panel 1 cannot be infinitely increased. For this reason, multiple prefabricated wall panels 1 can be selected to be spliced ​​and used, so as to reduce the impact of the prefabricated wall panels 1 on the space inside the building when they rotate.

[0048] Optionally, the prefabricated solar wall 100 further includes an outer frame 3, the outer frame 3 is fitted to the inner wall of the hollow area, the prefabricated wall panel 1 is arranged corresponding to the outer frame 3, the rotating shaft 2 is connected to the outer frame 3, the outer frame 3 encloses and forms an installation space, the two ends of the rotating shaft 2 are respectively connected to the outer frame 3, and multiple prefabricated wall panels 1 are located in the same installation space. Since the hollow area needs to be processed on-site during construction, its size fluctuates greatly. If the outer frame 3 is not used, a gap will easily appear between the prefabricated solar wall 100 and the outer wall. The outer frame 3 is a factory prefabricated component. The outer frame 3 is used in conjunction with the prefabricated wall panel 1 to obtain a better matching effect, thereby improving the airtightness of the prefabricated solar wall 100.

[0049] Optionally, the outer frame 3 may be provided with a bearing corresponding to the rotating shaft 2 to facilitate the rotation of the prefabricated wall panel 1 .

[0050] Optionally, the prefabricated solar wall 100 further includes a locking device 4, which is disposed between adjacent prefabricated wall panels 1 and / or between the prefabricated wall panels 1 and the outer frame 3, and is used to lock the prefabricated wall panels 1. Exemplarily, the locking device 4 can be a latch, a window lock, or various pin locks. As described above, when a motor is used as a drive, the self-locking function of the motor can also be relied upon as the locking device 4. In practice, the load that the locking device 4 may bear and the safety performance requirements of the prefabricated solar wall 100 should be considered for comprehensive selection.

[0051] Optionally, a reflective film 111 is laid between the heat storage layer 11 and the structural layer 12, and the reflective film 111 is used to prevent heat from being conducted from the heat storage layer 11 to the structural layer 12. In this way, the heat stored in the heat storage layer 11 is not easily conducted to the structural layer 12 and thus lost, which is beneficial to improving the heat collection effect of the heat storage layer 11.

[0052] Optionally, a heat absorbing layer 112 is provided on the surface of the heat storage layer 11. The heat absorbing layer 112 is conducive to improving the efficiency of the heat storage layer 11 in absorbing solar heat radiation, thereby improving the heating effect of the prefabricated heat collection wall 100.

[0053] Optionally, the prefabricated wall panel 1 further includes a decorative layer 131, which covers the surface of the heat insulation layer 13. The decorative layer 131 can be prefabricated in a processing plant, so that the amount of post-decoration work of the building body is reduced, which helps to reduce pollution and energy consumption caused by the decoration process, and is also conducive to shortening the decoration period and reducing costs.

[0054] like Figure 3 and Figure 4 As shown, optionally, the side surfaces of the heat storage layer 11, the structural layer 12 and the heat insulation layer 13 are spliced ​​to form a wall panel side surface 14, the wall panel side surface 14 is parallel to the axis of the rotating shaft 2, and a plurality of first sealing strips 14a are arranged on the wall panel side surface 14, the first sealing strips 14a extend along the axis direction of the rotating shaft 2, and the plurality of first sealing strips 14a are arranged at intervals along the thickness direction of the prefabricated wall panel 1, and when in the heat collection state and / or heat release state, the first sealing strips 14a of adjacent prefabricated wall panels 1 are arranged in an interlaced manner, so that the sides of adjacent prefabricated wall panels 1 are meshed with each other. Due to the thickness of the prefabricated wall panel 1, gaps must be left between the prefabricated wall panels 1, and between the wall panels and the exterior wall for the prefabricated wall panels 1 to rotate. Such provision of the first sealing strips 14a can greatly prevent the air inside and outside the building from exchanging through these gaps, thereby improving the airtightness of the prefabricated heat collection wall 100, and further improving the thermal insulation effect of the prefabricated heat collection wall 100.

[0055] Furthermore, the outer frame 3 has a first surface 31, the first surface 31 is parallel to the axis of the rotating shaft 2, and a second sealing strip 31a is provided on the first surface 31, and the second sealing strip 31a extends along the axis direction of the rotating shaft 2. When in the heat collection state or the heat release state, the second sealing strip 31a and the first sealing strip 14a are staggered so that the two are meshed to prevent the air inside and outside the building from exchanging through the gap between the first surface 31 and the side surface 14 of the wall panel, thereby improving the airtightness of the prefabricated heat collection wall 100, and further improving the thermal insulation effect of the prefabricated heat collection wall 100.

[0056] like Figure 5 as well as Figure 6As shown, optionally, the outer frame 3 has a second surface 32, the second surface 32 is perpendicular to the axis of the rotating shaft 2, and the second surface 32 is connected to the first surface 31. The second surface 32 is provided with a third sealing strip 32a, and the third sealing strip 32a extends along the midline direction of the width of the second surface 32. The width of the second surface 32 refers to the distance from one side to the other side of the second surface 32 along the direction from inside the building to outside the building. The top surfaces of the heat storage layer 11, the structural layer 12 and the heat insulation layer 13 are spliced ​​to form the top surface 15 of the wall panel, and the bottom surfaces of the heat storage layer 11, the structural layer 12 and the heat insulation layer 13 are spliced ​​to form the bottom surface 16 of the wall panel, and the top surface 15 of the wall panel and the bottom surface 16 of the wall panel are perpendicular to the axis of the rotating shaft 2. The top surface 15 of the wall panel and the bottom surface 16 of the wall panel are provided with a fourth sealing strip 17. The fourth sealing strip 17 extends along the midline direction of the thickness of the prefabricated wall panel 1. In some embodiments, there are multiple third sealing strips 32a and fourth sealing strips 17, and multiple third sealing strips 32a are arranged at intervals along the width direction of the second surface 32, and multiple fourth sealing strips 17 are arranged at intervals along the thickness direction of the prefabricated wall panel 1. When in the heat collection state or the heat release state, the third sealing strips 32a and the fourth sealing strips 17 are staggered so that the two are meshed, preventing the air inside and outside the building from exchanging through the gap between the second surface 32 and the top surface 15 of the wall panel, and the gap between the second surface 32 and the bottom surface 16 of the wall panel, thereby improving the airtightness of the prefabricated heat collection wall 100, and then improving the thermal insulation effect of the prefabricated heat collection wall 100.

[0057] In other embodiments, the third sealing strip 32a can also be arranged along the center line of the second surface 32 in the width direction, and the fourth sealing strip 17 is arranged corresponding to the third sealing strip 32a. When in the heat collection state or the heat release state, the third sealing strip 32a and the fourth sealing strip 17 are tangent to and squeezed against each other, thereby preventing the air inside and outside the building from being exchanged through the gap between the second surface 32 and the top surface 15 of the wall panel, and the gap between the second surface 32 and the bottom surface 16 of the wall panel, thereby improving the airtightness of the prefabricated solar collection wall 100, and further improving the thermal insulation effect of the prefabricated solar collection wall 100.

[0058] See also Figure 7 In the second aspect, the embodiment of the utility model further discloses a building 200, the building 200 having the prefabricated heat collecting wall 100 of any of the aforementioned embodiments, the thickness of the outer wall 201 of the building 200 being not less than the thickness of the prefabricated wallboard 1. Due to the use of prefabricated components such as the prefabricated heat collecting wall 100, the building 200 has advantages over the traditional building 200 in terms of construction efficiency, construction cost, building 200 design diversification, building 200 quality, and green and low carbon.

[0059] Optionally, the building 200 further includes a water retaining plate 202 and a drainage groove 203, wherein the water retaining plate 202 is arranged at the edge of the hollow area 201a, and the drainage groove 203 is arranged corresponding to the water retaining plate 202. The water retaining plate 202 and the drainage groove 203 can prevent natural precipitation from entering the interior of the building 200 through the prefabricated heat collection wall 100, which is beneficial to protecting the safety of various facilities in the building 200.

[0060] Optionally, in some embodiments, Figure 7 The outer wall 201 shown in (A) is also provided with a railing 201b inside the building 200, and the railing 201b is arranged at a distance relative to the prefabricated heat collecting wall 100 so that the railing 201b does not block the rotation of the prefabricated heat collecting wall 100. The railing 201b can prevent people or equipment in the building 200 from falling out of the building 200 from the hollow area 201a when the prefabricated heat collecting wall 100 rotates, thereby improving the safety of the building 200.

[0061] In other embodiments, Figure 7 As shown in (B), the railing 201b may not be provided, and the height of the prefabricated heat collection wall 100 out of the outer wall 201 may be increased, illustratively, not less than 900 mm. This prevents personnel or equipment in the building 200 from falling out of the building 200 from the hollow area 201a when the prefabricated heat collection wall 100 rotates, thereby improving the safety of the building 200.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A rotatable prefabricated heat collection wall, applied to the exterior wall of a building, wherein the exterior wall is provided with a hollow area, characterized in that: include: A prefabricated wall panel, wherein the prefabricated wall panel is arranged corresponding to the hollow area, and the prefabricated wall panel comprises a heat storage layer, a structural layer and a heat insulation layer which are sequentially stacked along the thickness direction of the prefabricated wall panel, wherein the heat storage layer is used to face the outside of the building to absorb solar heat when the prefabricated wall panel is in a heat collection state, and / or to face the inside of the building to release heat to the inside of the building when the prefabricated wall panel is in a heat release state; the structural layer is used to support the dead weight of the prefabricated wall panel; and the heat insulation layer is used to prevent the heat of the heat storage layer from passing through the prefabricated wall panel; A rotating shaft is provided in the structural layer along a tangent direction of the structural layer, and the rotating shaft passes through the centroid of the structural layer, and both ends of the rotating shaft are respectively connected to the inner wall of the hollow area, and the rotating shaft is used to cooperate with the prefabricated wall panel to rotate so that the prefabricated wall panel can switch between the heat collection state and the heat release state.

2. A rotatable prefabricated heat collecting wall according to claim 1, characterized in that: There are multiple prefabricated wall panels and rotating shafts in the hollow area, and multiple rotating shafts are arranged in parallel along the inner wall of the hollow area. Multiple wall bodies are arranged at intervals along the inner wall of the hollow area. When in the heat collection state and / or the heat release state, the surfaces of the multiple insulation layers are coplanar and parallel to the surface of the outer wall.

3. A rotatable prefabricated heat collecting wall according to claim 2, characterized in that: The sides of the heat storage layer, the structural layer and the insulation layer are spliced ​​to form the side of the wall panel, and the side of the wall panel is parallel to the axis of the rotating shaft. A plurality of first sealing strips are arranged on the side of the wall panel, and the first sealing strips extend along the axial direction of the rotating shaft. The plurality of first sealing strips are arranged at intervals along the thickness direction of the prefabricated wall panel, and when in the heat collection state and / or the heat release state, the first sealing strips of adjacent prefabricated wall panels are staggered so that the sides of adjacent prefabricated wall panels are meshed with each other.

4. A rotatable prefabricated heat collecting wall according to claim 3, characterized in that: It also includes an outer frame, which is fitted with the inner wall of the hollow area, the prefabricated wall panel is arranged corresponding to the outer frame, the rotating shaft is connected to the outer frame, the outer frame encloses an installation space, the two ends of the rotating shaft are respectively connected to the outer frame, and multiple prefabricated wall panels are located in the same installation space. The outer frame has a first surface, the first surface is parallel to the axis of the rotating shaft, and a second sealing strip is provided on the first surface, and the second sealing strip extends along the axial direction of the rotating shaft. When in the heat collection state and / or the heat release state, the second sealing strip and the first sealing strip are staggered and meshed with each other.

5. The rotatable prefabricated heat collecting wall according to claim 4, characterized in that: The outer frame includes a second surface, the second surface is perpendicular to the axis of the rotating shaft, and the second surface is connected to the first surface, the second surface is provided with a third sealing strip, and the third sealing strip extends along the midline direction of the width of the second surface; The top surfaces of the heat storage layer, the structural layer (12) and the heat insulation layer (13) are spliced ​​to form a wall panel top surface (15); the bottom surfaces of the heat storage layer (11), the structural layer (12) and the heat insulation layer (13) are spliced ​​to form a wall panel bottom surface (16); the wall panel top surface (15) and the wall panel bottom surface (16) are perpendicular to the axis of the rotating shaft (2); the wall panel top surface (15) and the wall panel bottom surface (16) are provided with a fourth sealing strip (17); the fourth sealing strip (17) extends along the center line direction of the thickness of the prefabricated wall panel (1); the fourth sealing strip is arranged opposite to the third sealing strip, and the third sealing strip and the fourth sealing strip are used to close the gap between the wall panel top surface and the second surface, and between the wall panel bottom surface and the second surface; The second surface width refers to the distance from one side to the other side of the second surface along the direction from the inside of the building to the outside of the building.

6. The rotatable prefabricated heat collecting wall according to claim 4, characterized in that: It also includes a locking device, which is arranged between adjacent prefabricated wall panels and / or between the prefabricated wall panels and the outer frame, and is used to lock the prefabricated wall panels.

7. A rotatable prefabricated solar collector wall according to any one of claims 1 to 6, characterized in that: A reflective film is laid between the heat storage layer and the structural layer, and the reflective film is used to prevent heat from being conducted from the heat storage layer to the structural layer.

8. A rotatable prefabricated solar collector wall according to any one of claims 1 to 6, characterized in that: A heat absorption layer is arranged on the surface of the heat storage layer.

9. A building, characterized in that: A rotatable prefabricated solar collector wall comprising any one of claims 1-8.

10. A building according to claim 9, characterized in that: The building also includes a water retaining plate and a drainage trough. The water retaining plate is arranged at the edge of the hollow area, and the drainage trough is arranged corresponding to the water retaining plate.

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