Greenhouse thermal insulation wall based on phase change thermal insulation material and greenhouse

Abstract

The greenhouse thermal insulation wall comprises a wall body, a bonding layer and a phase change heat storage thermal insulation layer which are sequentially arranged from outside to inside, and the wall body comprises an outer supporting layer, a thermal insulation layer and an inner supporting layer which are sequentially arranged from outside to inside. The outer supporting layer and the inner supporting layer are color steel plates or fiber reinforced calcium silicate plates, the heat preservation layer is a sandwich rock wool, extruded sheet or polyurethane heat preservation plate, and the phase change heat storage heat preservation layer is bonded on the inner supporting layer through the bonding layer. The greenhouse comprises the greenhouse thermal insulation walls based on the phase change thermal insulation materials and an arched shed frame, the greenhouse thermal insulation walls are arranged on the left side and the right side of the arched shed frame, and the bottom end of the arched shed frame is fixed to the upper edges of the greenhouse thermal insulation walls. The greenhouse thermal insulation wall and the greenhouse can realize self-adjustment of temperature and humidity under the condition of not depending on external energy, and have the advantages of low cost, good thermal insulation effect, environmental protection, energy conservation, convenience in construction and the like.

Description

Technical Field

[0001] This utility model relates to the field of agricultural facility engineering technology, specifically to a greenhouse insulation wall and greenhouse based on box-type transformer insulation material. Background Technology

[0002] Facility agriculture utilizes technology and artificial facilities to create and optimize the environmental conditions necessary for the growth and development of plants and animals. Currently, greenhouses are the most widely used type of facility in facility agriculture, and in their construction, wall insulation is crucial. Earthen-walled greenhouses and brick-walled greenhouses are two common types.

[0003] The walls of earthen greenhouses are constructed by repeatedly compacting and building earthen walls. However, these walls occupy a large area, reducing the net planting area and impacting land use efficiency. Furthermore, the earthen walls are susceptible to erosion from rain and snow, affecting their lifespan. Additionally, greenhouses built using this method are limited in height, making it impossible to construct structures exceeding 7 meters, and they are also prone to attracting rodents and causing damage.

[0004] The brick-walled greenhouse uses red bricks or foamed concrete bricks for its walls, with a wall thickness maintained between 0.37 and 1 meter. The cost is relatively high, and the payback period may be correspondingly longer.

[0005] Greenhouses using the two types of walls mentioned above suffer from rapid heat absorption and release, and large temperature differences between day and night. Even with the addition of traditional insulation materials, the poor thermal inertia of these materials leads to large temperature fluctuations inside the greenhouse, requiring temperature control equipment to be installed, resulting in high operating costs. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a greenhouse insulation wall based on phase change insulation material.

[0007] The technical solution of this utility model is achieved as follows: the greenhouse insulation wall based on phase change insulation material includes a wall body, an adhesive layer, and a phase change heat storage insulation layer.

[0008] The wall structure comprises, from the outside in, an outer support layer, an insulation layer, and an inner support layer. The outer and inner support layers are made of color-coated steel sheets or fiber-reinforced calcium silicate boards, and the insulation layer is made of sandwich rock wool, extruded polystyrene board, or polyurethane insulation board.

[0009] The phase change heat storage and insulation layer is bonded to the inner support layer through the adhesive layer.

[0010] Furthermore, the phase change heat storage and insulation layer is a paraffin-based composite material layer, which is composed of microencapsulated n-octadecane and high-density polyethylene matrix.

[0011] Furthermore, the thickness of the phase change heat storage insulation layer is 10-30mm.

[0012] Furthermore, the thickness of the color steel plate is 0.3-0.5mm; the thickness of the fiber-reinforced calcium silicate board is 4-8mm.

[0013] Furthermore, the thickness of the insulation layer is 50-100mm.

[0014] Furthermore, the adhesive layer is a polyurethane modified adhesive layer or an inorganic adhesive layer.

[0015] Furthermore, the thickness of the adhesive layer is less than 0.5 mm.

[0016] This utility model also provides a greenhouse, including the greenhouse insulation wall based on phase change insulation material and the arched frame described above. The greenhouse insulation wall is provided on both the left and right sides of the arched frame, and the bottom end of the arched frame is fixed to the upper edge of the greenhouse insulation wall.

[0017] This utility model provides a greenhouse insulation wall based on phase change insulation material, which can achieve self-regulation of temperature and humidity without relying on external energy. It boasts advantages such as low cost, excellent insulation effect, environmental friendliness, energy saving, and convenient construction, representing an upgrade from ordinary passive greenhouses. By placing the phase change heat storage insulation layer on the inner surface of the greenhouse insulation wall, a phase change heat storage greenhouse system is constructed, exhibiting better heat absorption and storage performance, improving the utilization rate of solar thermal energy in the greenhouse. Compared to traditional air conditioning and water heating equipment, it is more energy-efficient and environmentally friendly, saving operating costs. Using phase change heat storage insulation walls can significantly reduce greenhouse energy consumption, optimize environmental factors within the greenhouse, ensure the stability and consistency of crop growth, effectively improve crop growth efficiency, yield, and quality, and simultaneously improve land use efficiency. Using color steel plates or fiber-reinforced calcium silicate boards as the main support structure of the insulation wall results in a thin wall with high support strength, reducing the floor space required, and offering a long lifespan. The wall height is also unrestricted. The main wall adopts a sandwich structure with an insulation layer in the center of the inner and outer support layers. Combined with the phase change heat storage insulation layer on the inner surface, the heat absorption and insulation effect is better, effectively maintaining the stability of the temperature inside the greenhouse. Attached Figure Description

[0018] Figure 1 This is a perspective view of a greenhouse insulation wall based on phase change insulation material, according to an embodiment of this utility model.

[0019] Figure 2 This is a cross-sectional view of a greenhouse insulation wall based on phase change insulation material according to an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the greenhouse according to an embodiment of the present utility model.

[0021] The structure consists of: 1. Main wall; 11. Outer support layer; 12. Insulation layer; 13. Inner support layer; 2. Phase change heat storage insulation layer; 3. Adhesive layer; 4. Arched frame. Detailed Implementation

[0022] The present invention will be described in detail below through embodiments.

[0023] like Figure 1-2 As shown, this embodiment provides a greenhouse insulation wall based on phase change insulation material, including a wall body 1, an adhesive layer 3, and a phase change heat storage insulation layer 2 arranged sequentially from the outside to the inside. The wall body 1 includes an outer support layer 11, an insulation layer 12, and an inner support layer 13 arranged sequentially from the outside to the inside. The outer support layer 11 and the inner support layer 13 are made of color steel plate or fiber-reinforced calcium silicate board. The fact that both the outer support layer 11 and the inner support layer 13 are made of color steel plate or fiber-reinforced calcium silicate board (cement fiber pressure board) makes the wall body 1 a sandwich structure, possessing sufficient strength and insulation capabilities. In this embodiment, the thickness of the color steel plate is 0.3-0.5mm; the thickness of the fiber-reinforced calcium silicate board is 4-8mm. Both the color steel plate and the fiber-reinforced calcium silicate board have high support strength, resulting in a smaller thickness, reduced floor space, longer service life, lower cost, and no height restrictions. Furthermore, mice cannot nest inside, effectively extending the service life of the greenhouse insulation wall.

[0024] The insulation layer 12 is made of sandwich rock wool, extruded polystyrene board, or polyurethane insulation board. The main wall 1 has insulation capabilities, and together with the inner phase change heat storage insulation layer 2, the insulation effect is doubled. The combination of insulation layer 12 and phase change heat storage insulation layer 2 significantly improves the heat absorption and storage performance of the greenhouse insulation wall, increases the utilization rate of solar thermal energy, and reduces the dependence on auxiliary energy sources (such as water equipment for heat absorption and release) at night.

[0025] Optionally, the thickness of the insulation layer 12 is 50-100mm. The setting of the phase change heat storage insulation layer 2 can reduce the thickness of the insulation layer 12, thereby reducing the overall thickness and floor space of the greenhouse insulation wall.

[0026] Phase change thermal insulation layer 2 absorbs or releases latent heat through phase change, precisely regulating greenhouse temperature. It excels at both summer cooling and winter insulation. Secondly, it effectively slows down moisture evaporation and increases humidity within the greenhouse, creating a better growing environment for plants. Simultaneously, its excellent windproof performance protects crops from strong winds. More importantly, the phase change material absorbs or releases energy during melting and solidification, significantly reducing greenhouse energy consumption. Compared to traditional air conditioning and water heating equipment, it is more energy-efficient, environmentally friendly, and reduces operating costs. Because the phase change process of the phase change material is approximately isothermal and has a high energy storage density, phase change thermal insulation layer 2 possesses excellent temperature regulation and heat storage capabilities. This not only enhances the environmental control capabilities of greenhouse agriculture but also provides strong support for energy conservation, emission reduction, and the promotion of sustainable agricultural development.

[0027] Optionally, the phase change heat storage insulation layer 2 is a paraffin-based composite material layer, which is composed of microencapsulated n-octadecane and high-density polyethylene matrix. The phase change temperature is adjustable from 12 to 28°C, and it has excellent temperature regulation and heat storage capabilities.

[0028] The phase change heat storage insulation layer 2 is bonded to the inner support layer 13 through the adhesive layer 3, and is firmly fixed.

[0029] Optionally, the adhesive layer 3 is a polyurethane modified adhesive layer or an inorganic adhesive layer, which has strong adhesive properties.

[0030] Optionally, the thickness of the adhesive layer 3 is less than 0.5 mm, preferably 0.2-0.5 mm.

[0031] like Figure 3 As shown, this application also provides a greenhouse, including a greenhouse insulation wall based on phase change insulation material as described in the above embodiments and an arched frame 4. The arched frame 4 has greenhouse insulation walls on both its left and right sides, and its bottom end is fixed to the upper edge of the insulation walls. The arched frame 4 includes an arched truss and a plastic film on the truss. The installation of the greenhouse insulation wall increases the greenhouse's strength, allows for unlimited height, and extends its service life. It significantly improves heat absorption and energy storage capacity, reduces reliance on temperature control equipment, and enhances temperature stability within the greenhouse, effectively improving crop growth efficiency, yield, and quality.

[0032] This application, by adding a phase change heat storage and insulation layer 2 inside the greenhouse, can effectively reduce daytime temperatures and increase nighttime temperatures, thereby optimizing the crop growth environment. Verification has shown that the diurnal temperature range inside the greenhouse is reduced by more than 40%, nighttime temperatures increase by 5-8℃ in winter, midday temperatures decrease by 3-5℃ in summer, and overall energy savings are 30-50%.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope of the technology disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0034] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] In the description of this specification, the references to terms such as "this embodiment," "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any at least one embodiment or example. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and simple improvements made on the substantive content of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A greenhouse heat retaining wall based on phase change heat retaining material, characterized in that, It includes, from the outside to the inside, the main wall structure (1), the adhesive layer (3), and the phase change heat storage insulation layer (2). The wall body (1) includes an outer support layer (11), an insulation layer (12), and an inner support layer (13) arranged sequentially from the outside to the inside. The outer support layer (11) and the inner support layer (13) are made of color steel plate or fiber reinforced calcium silicate board, and the insulation layer (12) is made of sandwich rock wool, extruded polystyrene board, or polyurethane insulation board. The phase change heat storage insulation layer (2) is bonded to the inner support layer (13) through the adhesive layer (3).

2. The greenhouse heat retaining wall based on the phase change heat retaining material according to claim 1, characterized in that, The phase change heat storage and insulation layer (2) is a paraffin-based composite material layer, which is composed of microencapsulated n-octadecane and high-density polyethylene matrix.

3. The greenhouse heat retaining wall based on the phase change heat retaining material according to claim 1 or 2, characterized in that, The thickness of the phase change heat storage insulation layer (2) is 10-30mm.

4. The greenhouse heat retaining wall based on the phase change heat retaining material according to claim 1, characterized in that, The thickness of the color steel plate is 0.3-0.5mm; the thickness of the fiber-reinforced calcium silicate board is 4-8mm.

5. The greenhouse heat retaining wall based on the phase change heat retaining material according to claim 1, characterized in that, The thickness of the insulation layer (12) is 50-100mm.

6. The greenhouse heat retaining wall based on the phase change heat retaining material according to claim 1, characterized in that, The adhesive layer (3) is a polyurethane modified adhesive layer or an inorganic adhesive layer.

7. The greenhouse heat retaining wall based on the phase change heat retaining material according to claim 1 or 6, characterized in that, The thickness of the adhesive layer (3) is less than 0.5 mm.

8. A greenhouse, characterized in that The greenhouse insulation wall and arched frame (4) based on phase change insulation material as described in any one of claims 1-7 are provided on both the left and right sides of the arched frame (4), and the bottom end of the arched frame (4) is fixed to the upper edge of the greenhouse insulation wall.

Images