CN218846343U - Assembled phase change radiation wallboard - Google Patents

Abstract

The utility model discloses an assembled phase transition radiation wallboard, this wallboard of its characterized in that mainly comprises cold module and hot module, wraps up low temperature phase change material in the cold module shell of cold module, and the refrigerant pipe buries in low temperature phase change material, wraps up high temperature phase change material in the hot module shell of hot module, and the heat medium pipe buries in high temperature phase change material. The utility model discloses combine together phase change material and traditional building, adopt different phase transition temperature's phase change material, make into the module respectively, utilize high temperature phase transition module winter, utilize low temperature phase transition module summer. The integrated installation, the part is utilized, has both solved the different problem of indoor design temperature in winter and summer, also can realize expend with heat and contract with cold and to the cold influence of wall body, simultaneously easy to assemble and construction.

Description

Assembled phase change radiation wallboard

Technical Field

The utility model belongs to the technical field of building energy conservation the invention, concretely relates to assembled phase transition radiation wallboard.

Background

With the gradual increase of economic level and the rapid development of manufacturing industry, the requirements of people on the thermal comfort and the aesthetic property of indoor environment are gradually increased. The global climate change causes the phenomena of continuous high temperature in summer and continuous low temperature in winter in most areas of China. In the heating ventilation air conditioning field, the building envelope structure is an important factor for reducing indoor load and ensuring energy conservation and carbon reduction. Phase change materials are used as energy storage materials which are concerned about, and are concerned about and applied more and more in the aspect of reducing the energy consumption of building operation. The phase-change material has the characteristic of constant temperature when absorbing heat and releasing heat during phase change. Based on the point, the phase-change material can be combined with the traditional building, and the principle that the phase-change latent heat of the phase-change material is large is utilized to change the heat storage and release characteristics of the building envelope, so that the wall can store energy, release heat and release cold, and the indoor thermal environment is improved.

At present, phase change materials are mostly applied to indoor floors and interior wall surfaces, the phase change temperature of the phase change materials is 20 to 30 ℃, and requirements in winter and summer can not be met at the same time. The specification "design code for heating, ventilation and air conditioning of civil buildings" (GB 50736-2012) specifies that the design temperature of indoor air is 18 ℃ in winter and 26 ℃ in summer. According to the specification, the reasonable phase change temperature of the phase change material is 30-35 ℃ in winter and 18-22 ℃ in summer. Even if the phase change range of a single phase change material is within 20 to 30 ℃, the phase change material can not substantially meet the requirements of winter and summer at the same time. In order to break through this embarrassing situation, the utility model discloses a simulate accurate laminating winter and summer indoor air design temperature, utilize different phase transition temperature's phase change material, make into the module respectively, utilize high temperature phase transition module winter, utilize low temperature phase transition module summer, integrated installation separately utilizes. The problem of different indoor design temperatures in winter and summer is solved, and the cold influence of expansion with heat and contraction with cold on the wall body can be reduced.

The peak value of the power consumption in China generally appears in the daytime. At this time, the air conditioner power consumption in summer is also maintained at a peak value basically. In order to shift peaks and fill valleys of electric power, impact of air conditioning electricity on a power grid is relieved, refrigeration can be carried out at night, and cold energy is stored in an indoor low-temperature phase change module. When the indoor air temperature rises in the daytime, the cold energy is slowly released, the starting time of the air conditioner is reduced, and even the air conditioner can meet the requirement of the cold energy release without being started in the daytime. In winter, in areas with abundant solar energy, a solar heat collector is adopted to convert solar energy into heat energy, then the heat energy is conveyed indoors through a heat conveying medium pipe and stored in a high-temperature phase change module in a latent heat mode, heat is released when the indoor temperature is low at night, and the indoor heating temperature is maintained. Therefore the utility model discloses a can satisfy the demand of winter and summer indoor heating and air conditioner simultaneously, guarantee indoor thermal comfort, alleviate the impact to the electric wire netting, move the peak and fill in the millet, reduce the working costs of user's side simultaneously.

At present, an existing embedded pipe type radiation cooling phase change wall, for example, in patent publication CN209623006U, considers the embedded pipe type radiation cooling phase change wall as a vertical configuration, and combines the phase change wall with a radiation cooling system to change a dynamic heat transfer coefficient of an enclosure structure, so as to reduce a cooling load. But the phase-change material in the design is single, and the phase-change material in the whole wall body is leaked and is inconvenient to maintain. And the utility model discloses a obviously adorn phase transition radiation wallboard adopts modularization mode assembly, installation construction convenience, has solved phase change material and has revealed the problem of inconvenient maintenance. Meanwhile, the phase-change material is assembled in a mode of arranging two phase-change materials, so that the problem of single phase-change temperature of a single phase-change material can be solved, and the requirements of heating and cooling in winter and summer in hot-in-summer and cold-in-winter areas can be met.

Disclosure of Invention

The utility model discloses a basic thinking is: and encapsulating the high-temperature phase-change material in a metal shell, and embedding a heat medium pipe in the phase-change material to form the thermal module. When radiation heating is carried out in winter, the low-temperature heating medium in the night heating medium pipe stores heat in the high-temperature composite phase-change material with the phase-change temperature of 30-35 ℃ through natural convection, and the phase-change material is melted to store energy. And in daytime, the temperature is reduced, and the liquid phase-change material is solidified to release heat so as to carry out radiant heating. And encapsulating the low-temperature phase-change material in a metal shell, and embedding a refrigerant pipe in the phase-change material to form the cold module. When radiation cooling is carried out in summer, heat of a high-temperature refrigerant in the refrigerant pipe at night is stored in a low-temperature composite phase-change material with the phase-change temperature of 18-22 ℃ through natural convection, and the phase-change material is solidified to store energy. And the temperature rises in the daytime, the liquid phase-change material is melted to release heat, and radiation cooling is carried out. A plurality of cold and hot modules form a radiation heating and cooling wall surface, an aluminum foil is attached between the modules and a building wall body, and the aluminum foil can block heat radiation when the heat modules radiate and release heat, so that the heat is transferred to the indoor space. And the heat insulation layer between the aluminum foil and the building wall body prevents the heat loss of the phase change module and the heat transfer of the outer enclosing structure to the indoor space.

The utility model has the advantages that: phase change energy storage wall body current relatively, the utility model discloses fall into different phase transition temperature's cold, hot module with the phase transition wall body, solved phase transition wall body cost and high, liquid phase change material when revealing maintain inconvenient, the problem that the phase change material can not share in winter and summer two seasons. Through the modularization installation, can solve the big shortcoming of wall body stress, can also improve the hot inhomogeneities of two kinds of phase change material arrangements, make the radiation heating cooling relatively even. The embedded refrigerant pipe and the embedded heat medium pipe in the phase-change material can actively accumulate and release heat, and not only can supply cold and heat to indoor radiation, but also can reduce indoor cold and heat load. The high-temperature phase change material is used in winter, and the heating medium generated by low-grade energy sources such as waste heat and waste heat is utilized, so that the energy consumption can be reduced. The low-temperature phase change material is used in summer, the temperature of a refrigerant exceeds 18 ℃, the wall body can be prevented from dewing, meanwhile, the energy efficiency ratio of the refrigerator can be improved due to the high evaporation temperature, and energy conservation is realized on the side of the refrigerator.

Drawings

The present description includes the four figures: fig. 1 is a schematic view of an assembled phase change radiation wall panel, fig. 2 is a top view of an assembled phase change radiation wall panel, fig. 3 is a front sectional view of an assembled phase change radiation wall panel a-a, fig. 4 is a cross sectional view of an assembled phase change radiation wall panel B-B, in which: 1. the heat insulation building block comprises a cold module shell, 2, bolts, 3, a heat medium pipe, 4, a hot module shell, 5, expansion joints, 6, a refrigerant pipe, 7, a building wall, 8, a high-temperature phase change material, 9, a low-temperature phase change material, 10, aluminum foils, 11, a heat insulation material, 12, a cold module, 13, a hot module, 14, a heat medium connecting pipe, 15 and a refrigerant connecting pipe.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. As shown in the figure, an assembled phase change radiation wallboard characterized in that: the wallboard is characterized by mainly comprising a cold module 12 and a hot module 13, wherein a low-temperature phase-change material 9 is wrapped in a cold module shell 1 of the cold module 12, a refrigerant pipe 6 is embedded in the low-temperature phase-change material 9, a high-temperature phase-change material 8 is wrapped in a hot module shell 4 of the hot module 13, and a heat medium pipe 3 is embedded in the high-temperature phase-change material 8. The phase change temperature range of the high-temperature phase change material 8 is 30-35 ℃, and the phase change temperature range of the low-temperature phase change material 9 is 18-22 ℃. The temperature of the refrigerant in the heat medium pipe 3 is more than 35 ℃, and the temperature of the refrigerant in the refrigerant pipe 6 is more than 22 ℃.

And aluminum foils 10 and a heat insulation material 11 are sequentially adhered to the backs of the cold module and the hot module, and the heat insulation material 11 is made of polystyrene foam plastics with the thickness of 10mm to 20 mm.

The thermal insulation material 11 is added in the expansion joint 5, so that the heat transfer of the hot module and the cold module can be effectively blocked.

The phase change module can be fixed on the wall surface by bolts 2 and can also be arranged on the ground. If the installation falls to the ground, need do simple and easy support, put cold and hot phase transition module on simple and easy support, guarantee that the connecting pipe does not contact ground.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims (3)

1. The utility model provides an assembled phase transition radiation wallboard, this wallboard of its characterized in that mainly comprises cold module (12) and hot module (13), wraps up low temperature phase change material (9) in cold module shell (1) of cold module (12), and refrigerant pipe (6) are buried in low temperature phase change material (9), wraps up high temperature phase change material (8) in hot module shell (4) of hot module (13), and heat medium pipe (3) are buried in high temperature phase change material (8).

2. The assembled phase change radiation wallboard of claim 1, wherein the phase change temperature range of the high temperature phase change material (8) is 30-35 ℃, and the phase change temperature range of the low temperature phase change material (9) is 18-22 ℃.

3. The assembled phase-change radiation wallboard of claim 1, wherein the temperature of the refrigerant in the heat medium pipe (3) is more than 35 ℃, and the temperature of the refrigerant in the refrigerant pipe (6) is more than 22 ℃.

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