Phase change energy storage material and preparation method thereof

Abstract

The invention relates to the technical field of materials, and provides a phase change energy storage material and a preparation method thereof.The phase change energy storage material comprises a phase change energy storage material body, a nucleating agent and a thickening agent; the phase change energy storage material main body comprises at least one of ammonium chloride, sodium chloride, ammonium sulfate and pure water; the thickening agent comprises at least one of gelatin and Arabic gum; wherein the phase change energy storage material main body accounts for 84-104 parts by mass, the nucleating agent accounts for 1-3 parts by mass, and the thickening agent accounts for 3-5 parts by mass. The aqueous solution of ammonium chloride and ammonium sulfate is acidic and can promote dissolution of Arabic gum, so that the cycle index of the phase-change energy storage material can be increased and the service life of the phase-change energy storage material can be prolonged by compounding the Arabic gum and gelatin, and the phase-change energy storage material can be applied to a remains cabinet freezer. The compressor of the remains cabinet freezer can be prevented from being started and stopped frequently, and energy consumption and power utilization cost are reduced.

Description

Technical Field

[0001] This application relates to the field of materials technology, and particularly to a phase change energy storage material and a preparation method thereof. Background Art

[0002] Funeral work is a major livelihood cause that concerns the vital interests of the people. Currently, China has entered a stage of high-quality development. Developing new quality productivity is an inherent requirement and key focus for promoting high-quality development. New energy storage technology is a driving force for new quality productivity in the energy field. It features high technology, high efficiency, and high quality. It is an important part of developing new energy strategic emerging industries, an important technology and basic equipment for promoting the green and low-carbon transformation of energy, an important support for achieving the "dual-carbon" goal, and will also provide stronger new impetus for developing new quality productivity.

[0003] Green development is the foundation of high-quality development. New quality productivity itself is green productivity, and the funeral industry is closely related to green development. Accelerating green and low-carbon development, cultivating new quality productivity, actively promoting energy storage technology, promoting all-round resource conservation, improving energy efficiency, and focusing on solving prominent high-energy consumption problems have always been the development concepts of funeral equipment scientific and technological innovation.

[0004] Currently, there are nearly a hundred body freezers in each funeral home in China on average. The mechanical temperature control method of traditional freezers adjusts the temperature by frequently starting and stopping the compressor. Especially in summer and when the business volume is large, the start-stop frequency of the compressor is relatively high, and most of the time it is during the peak electricity consumption period (commercial electricity) during the day, which increases the huge electricity cost. At the same time, the high start-stop frequency of the compressor leads to large fluctuations in the cabinet temperature. Poor temperature control in the cabinet causes uneven temperature distribution due to natural convection and heat conduction in the cabinet. Such fluctuations and unevenness cause different water evaporation rates in different parts of the body, resulting in skin dryness or deterioration. In addition, the frequent start-stop of the compressor affects the equipment life and increases the heat dissipation, resulting in too high indoor temperature in the cold storage room. It is necessary to install additional refrigeration equipment to cool the space to ensure the normal operation of the business, increasing energy consumption and electricity cost. These are the difficult and painful problems that need to be solved urgently in funeral refrigeration equipment. Summary of the Invention

[0005] This application aims to solve at least one of the technical problems existing in the related art. For this purpose, this application proposes a phase change energy storage material and a preparation method thereof to reduce energy consumption and electricity cost.

[0006] The phase change energy storage material according to the first aspect embodiment of this application includes a phase change energy storage material main body, a nucleating agent, and a thickening agent; the phase change energy storage material main body includes at least one of ammonium chloride, sodium chloride, ammonium sulfate, and pure water; the thickening agent includes at least one of gelatin and gum arabic; Among them, the main body of the phase change energy storage material is 84 to 104 parts by mass, the nucleating agent is 1 to 3 parts by mass, and the thickening agent is 3 to 5 parts by mass.

[0007] According to an embodiment of the present application, the nucleating agent is sucrose.

[0008] According to an embodiment of the present application, the main body of the phase change energy storage material includes ammonium chloride, sodium chloride, ammonium sulfate and pure water; among them, the ammonium chloride is 10 to 15 parts by mass, the sodium chloride is 1 to 2 parts by mass, the ammonium sulfate is 1 to 3 parts by mass, and the pure water is 72 to 84 parts by mass.

[0009] According to an embodiment of the present application, the thickening agent includes gelatin and gum arabic; among them, the gelatin is 1 to 2 parts by mass, and the gum arabic is 2 to 3 parts by mass.

[0010] According to the preparation method of the phase change energy storage material according to the first aspect in the second aspect embodiment of the present application, it includes: Based on 1 to 2 parts by mass of gelatin and 5 to 6 parts by mass of pure water, prepare the first solution; Based on 2 to 3 parts by mass of gum arabic, 10 to 15 parts by mass of ammonium chloride, 1 to 3 parts by mass of ammonium sulfate and 67 to 78 parts by mass of pure water, prepare the second solution; Mix the first solution and the second solution to obtain a third solution; Based on the third solution and 1 to 3 parts by mass of sucrose, prepare the phase change energy storage material.

[0011] According to an embodiment of the present application, the preparation of the second solution based on 2 to 3 parts by mass of gum arabic, 10 to 15 parts by mass of ammonium chloride, 1 to 3 parts by mass of ammonium sulfate and 67 to 78 parts by mass of pure water includes: Grind 2 to 3 parts by mass of gum arabic, dissolve it in 67 to 78 parts by mass of pure water and stir to obtain a fourth solution; Add 10 to 15 parts by mass of ammonium chloride and 1 to 3 parts by mass of ammonium sulfate to the fourth solution and stir to obtain the second solution.

[0012] One or more of the above technical solutions in the embodiments of the present application have at least the following technical effects: By providing 1 to 3 parts by mass of a nucleating agent and 3 to 5 parts by mass of a thickening agent including at least one of gelatin and gum arabic on 84 to 104 parts by mass of a phase change energy storage material main body including at least one of ammonium chloride, sodium chloride, ammonium sulfate and pure water, a phase change energy storage material can be obtained. Since the aqueous solutions of ammonium chloride and ammonium sulfate are acidic, it can promote the further dissolution of gum arabic. Furthermore, by using the compound of gum arabic and gelatin, the number of cycles of the phase change energy storage material can be increased. Therefore, the service life of the phase change energy storage material can be improved. Furthermore, by applying the phase change energy storage material to a body freezer, the compressor of the body freezer can be prevented from frequently starting and stopping, reducing energy consumption and electricity costs.

[0013] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. Brief Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a schematic flowchart of a method for preparing a phase change energy storage material provided by an embodiment of the present application. Detailed Embodiments

[0016] The following will further describe in detail the embodiments of the present application in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0017] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present application 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 to the embodiments of the present application. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0018] In the description of the embodiments of the present application, it should be noted that unless otherwise clearly specified or limited, the terms "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 a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.

[0019] In the embodiments of the present application, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal height than the second feature.

[0020] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0021] The present application provides a phase change energy storage material and a preparation method thereof.

[0022] Specifically, the phase change energy storage material of the present application may include a phase change energy storage material main body, a nucleating agent, and a thickening agent.

[0023] Among them, the phase change energy storage material main body may include at least one of ammonium chloride, sodium chloride, ammonium sulfate, and pure water. For example, the phase change energy storage material main body may include ammonium chloride, sodium chloride, ammonium sulfate, and pure water.

[0024] Furthermore, the thickening agent in the present application may include at least one of gelatin and arabic gum. Specifically, the thickening agent may include gelatin and arabic gum, or may only include gelatin or arabic gum.

[0025] Further, it should be noted that in this application, the main body of the phase change energy storage material can be 84 to 104 parts by mass, the nucleating agent can be 1 to 3 parts by mass, and the thickening agent can be 3 to 5 parts by mass.

[0026] More specifically, when the main body of the phase change energy storage material includes ammonium chloride, sodium chloride, ammonium sulfate and pure water, ammonium chloride is 10 to 15 parts by mass, sodium chloride is 1 to 2 parts by mass, ammonium sulfate is 1 to 3 parts by mass, and pure water is 72 to 84 parts by mass.

[0027] When the thickening agent includes gelatin and gum arabic, gelatin is 1 to 2 parts by mass, and gum arabic is 2 to 3 parts by mass.

[0028] In this application, the combined use of gelatin and gum arabic can increase the number of cycles of the phase change energy storage material to 10,000 times.

[0029] In a specific embodiment, this application can prepare the phase change energy storage material through the following materials and ratios: ammonium chloride is 10 parts by mass, sodium chloride is 1 part by mass, ammonium sulfate is 1 part by mass, pure water is 72 parts by mass, gelatin is 1 part by mass, gum arabic is 2 parts by mass, and sucrose is 1 part by mass.

[0030] In another specific embodiment, this application can prepare the phase change energy storage material through the following materials and ratios: ammonium chloride is 15 parts by mass, sodium chloride is 2 parts by mass, ammonium sulfate is 3 parts by mass, pure water is 84 parts by mass, gelatin is 2 parts by mass, gum arabic is 3 parts by mass, and sucrose is 3 parts by mass.

[0031] In other embodiments, this application can also prepare the phase change energy storage material through the following materials and ratios: ammonium chloride is 12 parts by mass, sodium chloride is 1 part by mass, ammonium sulfate is 2 parts by mass, pure water is 75 parts by mass, gelatin is 1 part by mass, gum arabic is 2 parts by mass, and sucrose is 2 parts by mass.

[0032] In other embodiments, this application can also prepare the phase change energy storage material through the following materials and ratios: ammonium chloride is 13 parts by mass, sodium chloride is 2 parts by mass, ammonium sulfate is 2 parts by mass, pure water is 78 parts by mass, gelatin is 2 parts by mass, gum arabic is 3 parts by mass, and sucrose is 2 parts by mass.

[0033] According to the phase change energy storage material of the embodiment of the present application, by providing 1 to 3 parts by mass of a nucleating agent and 3 to 5 parts by mass of a thickener including at least one of gelatin and gum arabic on 84 to 104 parts by mass of a phase change energy storage material main body including at least one of ammonium chloride, sodium chloride, ammonium sulfate and pure water, a phase change energy storage material can be obtained. Since the aqueous solutions of ammonium chloride and ammonium sulfate are acidic, it can promote the further dissolution of gum arabic. Furthermore, by the compound use of gum arabic and gelatin, the number of cycles of the phase change energy storage material can be increased. Therefore, the service life of the phase change energy storage material can be improved. Furthermore, by applying the phase change energy storage material to a body freezer, the compressor of the body freezer can be avoided from frequently starting and stopping, reducing energy consumption and electricity cost.

[0034] Specifically, as an energy storage material, the phase change energy storage material of the present application has advantages such as large energy storage density and small volume. Using energy storage technology, applying the phase change cold storage material of the present application to a body freezer, with the cold storage material and the cold storage module as the core, having advantages such as high heat storage density, good storage and release performance, high heat storage and heat exchange efficiency, and high system operation stability, it can provide a stable cold source for refrigeration equipment, reduce the operation cost of the equipment, change the spatio-temporal distribution of cold energy use, and improve the energy use efficiency.

[0035] And it can cut peaks and fill valleys, helping to balance the power grid load and saving energy costs.

[0036] It can also reduce the peak-time operating pressure of the refrigeration equipment, reduce the start-stop frequency of the compressor, increase the service life of the compressor, and reduce the operation and maintenance costs.

[0037] Thus, the energy conservation and emission reduction degree of funeral equipment can be improved.

[0038] Based on the above embodiment, the nucleating agent in the present application can be sucrose.

[0039] Specifically, adding sucrose as a nucleating agent to the phase change energy storage material can effectively reduce the supercooling degree of the phase change energy storage material.

[0040] In a specific embodiment of the present application, the addition of sucrose can reduce the supercooling degree of the phase change energy storage material to 0.5 degrees Celsius.

[0041] The present application is based on ammonium chloride, sodium chloride, ammonium sulfate, pure water, sucrose, gelatin and gum arabic. The phase change point of the phase change energy storage material prepared according to 10 to 15 parts by mass of ammonium chloride, 1 to 2 parts by mass of sodium chloride, 1 to 3 parts by mass of ammonium sulfate, 72 to 84 parts by mass of pure water, 1 to 3 parts by mass of sucrose, 1 to 2 parts by mass of gelatin and 2 to 3 parts by mass of gum arabic is about -15 degrees Celsius, and the phase change enthalpy can reach 290 kJ / kg (kilojoules per kilogram).

[0042] Figure 1 is a schematic flow chart of a method for preparing a phase change energy storage material provided by an embodiment of the present application. As Figure 1 shown, the method for preparing the phase change energy storage material includes: Step 110: Prepare a first solution based on 1 to 2 parts by mass of gelatin and 5 to 6 parts by mass of pure water.

[0043] Step 120: Prepare a second solution based on 2 to 3 parts by mass of gum arabic, 10 to 15 parts by mass of ammonium chloride, 1 to 3 parts by mass of ammonium sulfate, and 67 to 78 parts by mass of pure water.

[0044] Step 130: Mix the first solution and the second solution to obtain a third solution.

[0045] Step 140: Prepare a phase change energy storage material based on the third solution and 1 to 3 parts by mass of sucrose.

[0046] Wherein, preparing the second solution based on 2 to 3 parts by mass of gum arabic, 10 to 15 parts by mass of ammonium chloride, 1 to 3 parts by mass of ammonium sulfate, and 67 to 78 parts by mass of pure water includes: Grind 2 to 3 parts by mass of gum arabic, dissolve it in 67 to 78 parts by mass of pure water, and stir to obtain a fourth solution; Add 10 to 15 parts by mass of ammonium chloride and 1 to 3 parts by mass of ammonium sulfate to the fourth solution and stir to obtain the second solution.

[0047] It should be noted that the execution subject of the method for preparing the phase change energy storage material provided by the embodiment of the present application can be a computer device, such as a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted electronic device, a wearable device, an Ultra-mobile Personal Computer (UMPC), a receiver, a netbook, or a Personal Digital Assistant (PDA), etc.

[0048] A device for preparing a phase change energy storage material can be set or connected in the computer device of the present application, so as to control the device for preparing the phase change energy storage material to execute the method for preparing the phase change energy storage material of the present application.

[0049] Specifically, when preparing the phase change energy storage material in this application, 1 to 2 parts by mass of gelatin can be first dissolved in 5 to 6 parts by mass of pure water, and further mechanically stirred at a rotation speed of 1000 - 2000 rpm (revolutions per minute) for 10 - 20 minutes under the condition of constant temperature at 50 °C, and then left to stand until room temperature (between 20 °C and 25 °C) to prepare the first solution.

[0050] Meanwhile, in this application, 2 to 3 parts by mass of gum arabic can be ground into powder and then dissolved in 67 to 78 parts by mass of pure water, and mechanically stirred at a rotation speed of 500 - 1000 rpm for 10 - 20 minutes under the condition of constant temperature at 50 °C, and then left to stand until room temperature to prepare the fourth solution.

[0051] Further, 10 to 15 parts by mass of ammonium chloride and 1 to 3 parts by mass of ammonium sulfate can be added to the fourth solution, and then mechanically stirred at 1000 - 2000 rpm for 20 - 30 minutes under the condition of normal temperature (between 20 °C and 30 °C) to prepare the second solution.

[0052] Further, the first solution can be added to the second solution, and mechanically stirred at a rotation speed of 1000 - 1500 rpm for 10 - 20 minutes under the condition of normal temperature (between 20 °C and 30 °C) to make the solution evenly mixed and prepare the third solution.

[0053] Further, 1 to 3 parts by mass of sucrose can be added to the third solution, and mechanically stirred at a rotation speed of 1000 - 2000 rpm for 20 - 30 minutes under the condition of normal temperature (between 20 °C and 30 °C), thereby preparing the phase change energy storage material.

[0054] Adding sucrose as a nucleating agent to the phase change energy storage material can effectively reduce the supercooling degree of the phase change energy storage material.

[0055] In a specific embodiment of this application, the addition of sucrose can reduce the supercooling degree of the phase change energy storage material to 0.5 °C.

[0056] Based on ammonium chloride, sodium chloride, ammonium sulfate, pure water, sucrose, gelatin and gum arabic in this application, when the phase change energy storage material is prepared according to 10 to 15 parts by mass of ammonium chloride, 1 to 2 parts by mass of sodium chloride, 1 to 3 parts by mass of ammonium sulfate, 72 to 84 parts by mass of pure water, 1 to 3 parts by mass of sucrose, 1 to 2 parts by mass of gelatin and 2 to 3 parts by mass of gum arabic, the phase change point of the phase change energy storage material is about -15 °C, and the phase change enthalpy can reach 290 kJ / kg (kilojoules per kilogram).

[0057] In a specific embodiment, when preparing the phase change energy storage material of the present application, 1 part by mass of gelatin can be first dissolved in 5 parts by mass of pure water, and further mechanically stirred at a rotation speed of 1000 rpm (revolutions per minute) for 10 minutes under the condition of constant temperature at 50 °C, and then left to stand until room temperature to prepare the first solution.

[0058] Meanwhile, 2 parts by mass of gum arabic can be ground into powder and then dissolved in 67 parts by mass of pure water, and mechanically stirred at a rotation speed of 500 rpm for 10 minutes under the condition of constant temperature at 50 °C, and then left to stand until room temperature to prepare the fourth solution.

[0059] Further, 10 parts by mass of ammonium chloride and 1 part by mass of ammonium sulfate can be added to the fourth solution and then mechanically stirred at 1000 rpm for 20 minutes under normal temperature conditions to prepare the second solution.

[0060] Further, the first solution can be added to the second solution and mechanically stirred at a rotation speed of 1000 rpm for 10 minutes under normal temperature conditions to make the solution uniformly mixed and prepare the third solution.

[0061] Further, 1 part by mass of sucrose is added to the third solution and mechanically stirred at a rotation speed of 1000 rpm for 20 minutes under normal temperature conditions, thereby preparing the phase change energy storage material.

[0062] In another specific embodiment, when preparing the phase change energy storage material of the present application, 2 parts by mass of gelatin can be first dissolved in 6 parts by mass of pure water, and further mechanically stirred at a rotation speed of 2000 rpm (revolutions per minute) for 20 minutes under the condition of constant temperature at 50 °C, and then left to stand until room temperature to prepare the first solution.

[0063] Meanwhile, 3 parts by mass of gum arabic can be ground into powder and then dissolved in 78 parts by mass of pure water, and mechanically stirred at a rotation speed of 1000 rpm for 20 minutes under the condition of constant temperature at 50 °C, and then left to stand until room temperature to prepare the fourth solution.

[0064] Further, 15 parts by mass of ammonium chloride and 3 parts by mass of ammonium sulfate can be added to the fourth solution and then mechanically stirred at 2000 rpm for 30 minutes under normal temperature conditions to prepare the second solution.

[0065] Further, the first solution can be added to the second solution and mechanically stirred at a rotation speed of 1500 rpm for 20 minutes under normal temperature conditions to make the solution uniformly mixed and prepare the third solution.

[0066] Further, 3 parts by mass of sucrose is added to the third solution and mechanically stirred at a rotation speed of 2000 rpm for 30 minutes under normal temperature conditions, thereby preparing the phase change energy storage material.

[0067] In other embodiments, when preparing the phase change energy storage material of the present application, 1 part by mass of gelatin can be first dissolved in 6 parts by mass of pure water, and further mechanically stirred at a constant temperature of 50 °C at a rotation speed of 1500 rpm (revolutions per minute) for 15 minutes, and then left to stand until room temperature to prepare a first solution.

[0068] Meanwhile, 2 parts by mass of gum arabic of the present application can be ground into powder and then dissolved in 72 parts by mass of pure water, and mechanically stirred at a constant temperature of 50 °C at a rotation speed of 800 rpm for 15 minutes, and then left to stand until room temperature to prepare a fourth solution.

[0069] Further, 12 parts by mass of ammonium chloride and 2 parts by mass of ammonium sulfate can be added to the fourth solution, and then mechanically stirred at 1500 rpm at normal temperature for 25 minutes to prepare a second solution.

[0070] Further, the first solution can be added to the second solution, and mechanically stirred at a rotation speed of 1200 rpm at normal temperature for 15 minutes to mix the solution evenly to prepare a third solution.

[0071] Further, 2 parts by mass of sucrose are added to the third solution, and mechanically stirred at a rotation speed of 1500 rpm at normal temperature for 25 minutes to thereby prepare the phase change energy storage material.

[0072] According to the preparation method of the phase change energy storage material of the embodiments of the present application, by providing 1 part by mass to 3 parts by mass of a nucleating agent and 3 parts by mass to 5 parts by mass of a thickener including at least one of gelatin and gum arabic on a phase change energy storage material main body of 84 parts by mass to 104 parts by mass including at least one of ammonium chloride, sodium chloride, ammonium sulfate and pure water, a phase change energy storage material can be obtained. Since the aqueous solutions of ammonium chloride and ammonium sulfate are acidic, it can promote the further dissolution of gum arabic. Furthermore, by the compound use of gum arabic and gelatin, the cycle times of the phase change energy storage material can be increased. Therefore, the service life of the phase change energy storage material can be improved. Furthermore, when the phase change energy storage material is applied to a body freezer, it can avoid the frequent start and stop of the compressor of the body freezer, reduce energy consumption and electricity costs.

[0073] Specifically, as an energy storage material, the phase change energy storage material of the present application has advantages such as large energy storage density and small volume. Using energy storage technology, the phase change cold storage material of the present application is applied to a body freezer. With the cold storage material and the cold storage module as the core, it has advantages such as high heat storage density, good storage and release performance, high heat storage and heat exchange efficiency, and high system operation stability, and can provide a stable cold source for refrigeration equipment, reduce the operation cost of the equipment, change the spatio-temporal distribution of cold energy use, and improve the energy use efficiency.

[0074] Moreover, it can smooth out peaks and valleys to help balance the power grid load and save energy costs.

[0075] It can also reduce the peak-time operating pressure of refrigeration equipment, decrease the start-stop frequency of compressors, increase the service life of compressors, and reduce operation and maintenance costs.

[0076] Thus, the energy conservation and emission reduction level of funeral equipment can be improved.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the present application, rather than limiting the present application. Although the present application has been described in detail with reference to the embodiments, those of ordinary skill in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present application do not depart from the spirit and scope of the technical solutions of the present application.

Claims

1. A phase change energy storage material, characterized in that, It includes a phase change energy storage material main body, a nucleating agent and a thickening agent; the phase change energy storage material main body includes at least one of ammonium chloride, sodium chloride, ammonium sulfate and pure water; the thickening agent includes at least one of gelatin and gum arabic; Among them, the phase change energy storage material main body is 84 to 104 parts by mass, the nucleating agent is 1 to 3 parts by mass, and the thickening agent is 3 to 5 parts by mass.

2. The phase change energy storage material according to claim 1, wherein The nucleating agent is sucrose.

3. The phase change energy storage material according to claim 1, characterized in that, The phase change energy storage material main body includes ammonium chloride, sodium chloride, ammonium sulfate and pure water; among them, the ammonium chloride is 10 to 15 parts by mass, the sodium chloride is 1 to 2 parts by mass, the ammonium sulfate is 1 to 3 parts by mass, and the pure water is 72 to 84 parts by mass.

4. The phase change energy storage material according to claim 1, wherein The thickening agent includes gelatin and gum arabic; among them, the gelatin is 1 to 2 parts by mass, and the gum arabic is 2 to 3 parts by mass.

5. A method for preparing a phase change energy storage material according to any one of claims 1-4, characterized in that, It includes: Based on 1 to 2 parts by mass of gelatin and 5 to 6 parts by mass of pure water, prepare a first solution; Based on 2 to 3 parts by mass of gum arabic, 10 to 15 parts by mass of ammonium chloride, 1 to 3 parts by mass of ammonium sulfate and 67 to 78 parts by mass of pure water, prepare a second solution; Mix the first solution and the second solution to obtain a third solution; Based on the third solution and 1 to 3 parts by mass of sucrose, prepare a phase change energy storage material.

6. The preparation method of the phase change energy storage material according to claim 5, characterized in that, The step of preparing the second solution based on 2 to 3 parts by mass of gum arabic, 10 to 15 parts by mass of ammonium chloride, 1 to 3 parts by mass of ammonium sulfate and 67 to 78 parts by mass of pure water includes: Grind 2 to 3 parts by mass of gum arabic, dissolve it in 67 to 78 parts by mass of pure water and stir to obtain a fourth solution; Add 10 to 15 parts by mass of ammonium chloride and 1 to 3 parts by mass of ammonium sulfate to the fourth solution and stir to obtain the second solution.

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