A winter cold-keeping device for soft-seeded pomegranate in a facility cold shed in Hotan region of Xinjiang

Abstract

The present application relates to the technical field of agricultural equipment, in particular to a facility cold shed soft-seeded pomegranate winter heat storage cold protection device suitable for Hotan region in Xinjiang; the upper part of the frame has a ventilation opening; the main body heat preservation layer covers the frame; the solar power supply system is used for providing electric energy; the heat storage assembly one is hinged on the frame; the heat storage assembly one can be driven to swing, close the ventilation opening or open the ventilation opening; the heat storage assembly one comprises, from outside to inside, a solar heat absorption plate, an epoxy vinyl resin coating one, a phase change heat storage material layer one and a waterproof and breathable film one; the heat storage assembly two is arranged at the lower part of the frame; the heat storage assembly two comprises: an air energy system and a heat storage structure; the air energy system is connected with the solar power supply system; the control system is connected with the solar power supply system, the air energy system and the driving mechanism. The present application can store and release heat in time by using the climate characteristics of large diurnal temperature difference in Hotan region in Xinjiang, so as to protect soft-seeded pomegranate from winter.

Description

Technical Field

[0001] This invention relates to the field of agricultural equipment technology, and in particular to a winter heat storage and cold protection device for soft-seed pomegranates in a cold-frame greenhouse in Hotan region of Xinjiang. Background Technology

[0002] Soft-seeded pomegranate is a deciduous fruit tree, shrub, or small tree belonging to the genus Punica granatum in the family Punicaceae. This variety was introduced to my country from Tunisia in 1986. After more than 10 years of cultivation trials and observations, it has demonstrated excellent performance in various aspects, particularly notable for its early maturity, large seeds, bright color, large fruit size, attractive red color, and exceptionally soft kernels, resulting in significant economic benefits. The fruit, when ripe, becomes a large, multi-chambered, multi-seeded berry. Each chamber contains numerous seeds; the outer seed coat is fleshy, bright purplish-red, juicy, sweet with a hint of sourness, and the inner seeds are degenerated and softened, allowing for direct consumption. This eliminates the inconvenience of spitting out whole seeds when eating pomegranates, changing perceptions of pomegranate consumption and increasing reliance on the fruit. Soft-seeded pomegranates are extremely high in antioxidants, flavonoids, organic acids, ellagic acid, various minerals, and vitamins. Long-term consumption can help prevent and delay aging, arteriosclerosis, cardiovascular disease, promote healthy skin, and slow the progression of cancer.

[0003] However, soft-seeded pomegranates are not very cold-resistant, and frost damage is a major factor limiting their development in northern my country. In recent years, soft-seeded pomegranates have been introduced to Hotan Prefecture, Xinjiang. In winter, they are kept warm in simple cold greenhouses. Monitoring of the local winter greenhouse temperatures revealed that the highest daytime temperature is around 17℃, occurring around 3 PM local time; the temperature drops to around 5℃ from 9 PM, and the lowest temperature can reach around -10℃ between 8 and 9 AM, resulting in a huge diurnal temperature range. This causes a large number of pomegranate seedlings to suffer frost damage and even die every winter, and the problem of overwintering pomegranates hinders the healthy development of the pomegranate industry.

[0004] Plastic greenhouses, commonly known as cold greenhouses, are simple and practical protected cultivation facilities. Due to their ease of construction, convenient use, and low investment, they have been widely adopted worldwide with the development of the plastics industry. They fully utilize solar energy, provide some insulation, and can regulate temperature and humidity within a certain range through the rolling film. In northern my country, cold greenhouses primarily serve to provide insulation for early spring and late autumn cultivation, but they cannot be used for overwintering cultivation. To meet the requirements of crop growth, artificial heating is necessary at night. This is illustrated in patents CN209218757U ("A Greenhouse Insulation Device") and CN209089521U ("A Solar Greenhouse Insulation Device"). However, these traditional heating methods consume large amounts of conventional energy, increase production costs, and pollute the environment. The high initial investment and high operating costs of clean energy heating, such as electricity and natural gas, are the main reasons why it is difficult to achieve clean energy heating in rural areas. This also restricts the progress of air pollution control. Therefore, how to invent a new type of clean heating method and device to solve the above problems is an urgent problem to be solved. Summary of the Invention

[0005] In view of this, the present invention provides a winter heat storage and cold protection device for soft-seed pomegranates in a facility-cooled greenhouse in Hotan, Xinjiang. The main purpose is to take advantage of the large temperature difference between day and night in Hotan to store and release excess heat in a timely manner, ensuring the crops survive the winter, and is also energy-saving and environmentally friendly.

[0006] To achieve the above objectives, the present invention mainly provides the following technical solutions:

[0007] An embodiment of the present invention provides a winter heat storage and cold protection device for soft-seed pomegranates in a facility-cooled greenhouse in Hotan region of Xinjiang, comprising: a frame, a main insulation layer, a solar power supply system, a heat storage component one, a heat storage component two, and a control system;

[0008] The upper part of the frame has ventilation openings;

[0009] The main insulation layer covers the frame; the main insulation layer includes: polyolefin film one, polyethylene bubble layer and polyolefin film two;

[0010] The first polyolefin film, the second polyethylene bubble layer, and the third polyolefin film are sequentially bonded together from the outside to the inside.

[0011] The interior of the polyethylene bubble layer is filled with argon gas.

[0012] The solar power supply system includes: solar panels, a photovoltaic controller, and a storage battery;

[0013] The photovoltaic controller is connected to the solar panel;

[0014] The battery is connected to the photovoltaic controller, and through the photovoltaic controller, it is connected to the solar panel for storing electrical energy;

[0015] The heat storage component is hinged to the frame and can swing relative to the frame; the heat storage component can be driven to swing, closing or opening the vent.

[0016] The heat storage component includes: a solar heat absorption panel, an epoxy vinyl resin coating, a phase change heat storage material layer, and a waterproof and breathable membrane.

[0017] The solar heat absorber, the epoxy vinyl resin coating, the phase change heat storage material layer, and the waterproof and breathable membrane are sequentially bonded together from the outside to the inside.

[0018] A driving mechanism is provided between the heat storage component and the frame for driving the heat storage component to swing.

[0019] The second heat storage component is disposed at the lower part of the frame;

[0020] The second heat storage component includes: an air energy system and a heat storage structure;

[0021] The air energy system is connected to the solar power system to utilize the heat energy in the air;

[0022] The heat storage structure includes: a second phase change heat storage material layer, a condenser tube, a second waterproof and breathable membrane, and a second epoxy vinyl resin coating.

[0023] The second phase change thermal storage material layer is fixedly disposed on the frame;

[0024] The condenser tube is attached to the second phase change heat storage material layer; the condenser tube is connected to the air energy system; a circulation pump is installed on the condenser tube;

[0025] The second waterproof and breathable membrane is disposed on the inner side of the second phase change heat storage material layer;

[0026] The epoxy vinyl resin coating is applied to the outer side of the condenser tube and the phase change heat storage material layer 2;

[0027] The control system is connected to the solar power supply system, the air energy system, and the drive mechanism.

[0028] Furthermore, the phase change thermal storage material layer one includes: an acrylic container one and phase change thermal storage material particles one;

[0029] The phase change thermal storage material particles are filled inside the acrylic container.

[0030] Furthermore, the second phase change thermal storage material layer includes: an acrylic container and phase change thermal storage material particles;

[0031] The phase change thermal storage material particles are filled inside the acrylic container.

[0032] Furthermore, the phase change thermal storage material particles one and the phase change thermal storage material particles two are made of the same material.

[0033] Furthermore, the waterproof and breathable membrane is an expanded polytetrafluoroethylene membrane;

[0034] The second waterproof and breathable membrane is an expanded polytetrafluoroethylene membrane.

[0035] Furthermore, the outer edges of the first polyolefin film, the polyethylene bubble layer, and the second polyolefin film are sealed.

[0036] Furthermore, the phase change thermal storage material particles are calcium chloride hexahydrate thermal storage materials.

[0037] Furthermore, a temperature sensor and a humidity sensor are installed inside the frame;

[0038] A second temperature sensor is installed on the outside of the frame;

[0039] The temperature sensor one, the humidity sensor and the temperature sensor two are respectively connected to the control system.

[0040] Furthermore, the driving mechanism is an electric telescopic rod.

[0041] Furthermore, the air energy system includes: a compressor, a condenser, a storage container, an expansion valve, an evaporator, and a vapor-liquid separator;

[0042] The condenser is connected to the output end of the compressor; the storage container is connected to the refrigerant output end of the condenser; the expansion valve is connected to the output port of the storage container; the evaporator is connected to the expansion valve; the input end of the vapor-liquid separator is connected to the output end of the evaporator; the output end of the vapor-liquid separator is connected to the input end of the compressor.

[0043] The medium end of the condenser is connected to the condenser tube, and the circulation pump is used to drive the medium to circulate in the condenser and the condenser tube.

[0044] By employing the above technical solution, the winter heat storage and cold protection device for soft-seed pomegranates in cold-frame greenhouses in Hotan, Xinjiang, has at least the following advantages:

[0045] In this invention, the large temperature difference between day and night, high daytime temperature, and abundant heat in the Hotan region are utilized to store and release heat in a timely manner through a heat storage and cold protection device. The heat is released when the temperature drops at night, ensuring that the soft-seed pomegranate survives the winter. Moreover, it is energy-saving and environmentally friendly.

[0046] In this invention, to address the problem of uneven heating and heat preservation in Hotan region under sunny and cloudy weather, a phase change thermal storage material is combined with two different heating methods to enable intermittent heating and heat preservation every day, saving the energy required by traditional methods of directly heating water from external sources.

[0047] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0048] Figure 1 A schematic diagram of a winter heat storage and cold protection device for soft-seed pomegranates in a cold greenhouse in Hotan region of Xinjiang, provided as an embodiment of the present invention;

[0049] Figure 2 A schematic diagram of a winter heat storage and cold protection device for soft-seed pomegranates in a cold greenhouse in Hotan, Xinjiang, provided as an embodiment of the present invention;

[0050] Figure 3 A schematic diagram of a winter heat storage and cold protection device for soft-seed pomegranates in a cold greenhouse in Hotan region of Xinjiang, provided as an embodiment of the present invention;

[0051] Figure 4 A schematic diagram of a winter heat storage and cold protection device for soft-seed pomegranates in a cold greenhouse in Hotan region of Xinjiang, provided as an embodiment of the present invention;

[0052] Figure 5 This is a schematic diagram of a winter heat storage and cold protection device for soft-seed pomegranates in a cold greenhouse in Hotan, Xinjiang, provided as an embodiment of the present invention.

[0053] As shown in the figure:

[0054] 1 is the frame, 2 is the main insulation layer, 2-1 is the first polyolefin membrane, 2-2 is the polyethylene bubble layer, 2-3 is the second polyolefin membrane, 3 is the solar power supply system, 3-1 is the solar panel, 3-2 is the battery, 4 is the first heat storage component, 4-1 is the solar heat absorber, 4-2 is the first epoxy vinyl resin coating, 4-3 is the first phase change heat storage material layer, 4-4 is the first waterproof and breathable membrane, 5 is the second heat storage component, 5-1 is the air source system, 511 is the compressor, 512 is the condenser, 513 is the storage container, 514 is the expansion valve, 515 is the evaporator, 516 is the vapor-liquid separator, 5-2 is the heat storage structure, 521 is the second phase change heat storage material layer, 522 is the condenser pipe, 523 is the second waterproof and breathable membrane, 524 is the circulation pump, 525 is the second epoxy vinyl resin coating, and 6 is the drive mechanism. Detailed Implementation

[0055] To further illustrate the technical means and effects adopted by the present invention to achieve the intended purpose, the specific embodiments, structures, features, and effects according to the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments. In the following description, different "embodiments" or "embodiments" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0056] like Figures 1 to 5 As shown in the figure, an embodiment of the present invention provides a winter frost protection device for soft-seed pomegranates in a cold greenhouse in Hotan region of Xinjiang, comprising: a frame 1, a main insulation layer 2, a solar power supply system 3, a heat storage component 1 4, a heat storage component 2 5, and a control system; the upper part of the frame 1 has ventilation openings; the frame 1 is preferably an arch frame structure. The main insulation layer 2 is provided between the upper and lower chords of the arch frame structure.

[0057] The main insulation layer 2 covers the frame 1; the main insulation layer 2 includes: polyolefin film 2-1, polyethylene bubble layer 2-2, and polyolefin film 2-3; the polyolefin film 2-1, polyethylene bubble layer 2-2, and polyolefin film 2-3 are sequentially attached from the outside to the inside; preferably in this embodiment, the outer edges of the polyolefin film 2-1, polyethylene bubble layer 2-2, and polyolefin film 2-3 are sealed to improve their insulation performance. The thickness of the polyethylene bubble layer 2-2 is preferably 10mm to provide good insulation. The interior of the polyethylene bubble layer 2-2 is filled with argon gas; argon gas is an inert gas with a low thermal conductivity, which can slow down heat convection and heat conduction to achieve the heat insulation performance of the greenhouse. It has a good heat preservation effect during day and night operation in winter, so that the temperature drop of the greenhouse at night is not large, the light transmittance is also above 60%, and the invasion of external pests and diseases is also reduced. It avoids the problem of poor light transmittance caused by traditional greenhouses that are covered with insulation blankets for insulation.

[0058] The solar power supply system 3 includes: a solar panel 3-1, a photovoltaic controller, and a battery 3-2; the photovoltaic controller is connected to the solar panel 3-1; the battery 3-2 is connected to the photovoltaic controller and, through the photovoltaic controller, to the solar panel 3-1 for storing electrical energy.

[0059] The heat storage component 4 is hinged to the frame 1 and can swing relative to the frame 1. The heat storage component 4 can be driven to swing, closing or opening the vent. The heat storage component 4 includes: a solar absorber plate 4-1, an epoxy vinyl resin coating 4-2, a phase change heat storage material layer 4-3, and a waterproof and breathable membrane 4-4. The solar absorber plate 4-1, epoxy vinyl resin coating 4-2, phase change heat storage material layer 4-3, and waterproof and breathable membrane 4-4 are sequentially bonded from the outside to the inside. Solar energy is absorbed by the solar absorber plate 4-1 and converted into heat energy, which is stored in the phase change heat storage material layer 4-3. Preferably, in this embodiment, the phase change heat storage material layer 4-3 includes: an acrylic container and phase change heat storage material particles. The phase change heat storage material particles are filled inside the acrylic container for storing and releasing heat. The acrylic container is preferably an acrylic tube, which is readily available and has a reliable structure. The phase change thermal storage material particles consist of CaCl2·6H2O (69%), MgCl2·6H2O (30%), and SrCl2·6H2O (1%). Adding 1% SrCl2·6H2O reduced the supercooling of the inorganic phase change thermal storage material to 0.6℃. MgCl2·6H2O and SrCl2·6H2O were used as nucleating agents.

[0060] The phase change thermal storage material has a particle thermal conductivity of 0.3 W / (m·K) and a heat storage capacity of 4.71 MJ / m³. 2 The average heat release is 4.58 MJ / m³. 2 The phase change thermal storage material particles have a phase change point between 20℃ and 30℃. The acrylic container is 3cm thick.

[0061] In this embodiment, the waterproof and breathable membrane 4-4 is preferably an expanded polytetrafluoroethylene membrane, which has natural hydrophobicity, ensuring that indoor water vapor is blocked from affecting the phase change heat storage material layer 4-3; at the same time, it can also ensure that gas can pass freely to transfer heat energy.

[0062] A drive mechanism 6 is provided between the heat storage component 4 and the frame 1 to drive the heat storage component 4 to swing; the drive mechanism 6 is connected to the solar power supply system 3. In this preferred embodiment, the drive mechanism 6 is an electric telescopic rod, whose movement can be controlled by the control system; it is powered by the solar power supply system 3.

[0063] The second heat storage component 5 is located at the lower part of the frame 1; the second heat storage component 5 includes: an air source system 5-1 and a heat storage structure 5-2; the air source system 5-1 is connected to the solar power supply system 3 to utilize the heat energy in the air; preferably in this embodiment, the air source system 5-1 includes: a compressor 511, a condenser 512, a storage container 513, an expansion valve 514, an evaporator 515, and a vapor-liquid separator 516; the compressor 511 is connected to the solar power supply system 3; the solar power supply system 3 provides electrical energy to the compressor 511. The condenser 512 is connected to the output end of the compressor 511; the storage container 513 is connected to the refrigerant output end of the condenser 512; the expansion valve 514 is connected to the output port of the storage container 513; the evaporator 515 is connected to the expansion valve 514; and absorbs heat from the air through the evaporator 515. The input end of the vapor-liquid separator 516 is connected to the output end of the evaporator 515; the output end of the vapor-liquid separator 516 is connected to the input end of the compressor 511; the medium end of the condenser 512 is connected to the condenser tube 522, and the circulation pump 524 is used to drive the medium to circulate in the condenser 512 and the condenser tube 522. The medium in the condenser tube 522 absorbs heat in the condenser 512, and the medium transfers the heat through the condenser tube 522 to the second phase change heat storage material layer 521, where it is stored. The heat storage structure 5-2 includes: the second phase change heat storage material layer 521, the condenser tube 522, the second waterproof and breathable membrane 523, and the second epoxy vinyl resin coating 525; the second phase change heat storage material layer 521 is fixedly disposed on the frame 1; in this embodiment, preferably, the second phase change heat storage material layer 521 includes: the second acrylic container and the second phase change heat storage material particles; the second phase change heat storage material particles are filled in the second acrylic container to store and release heat. Further preferably, the phase change thermal storage material particles one and two are made of the same material to facilitate the fabrication of phase change thermal storage material layer one 4-3 and phase change thermal storage material layer two 521, and to simplify processing and maintenance. In this embodiment, phase change thermal storage material particles one are preferably calcium chloride hexahydrate thermal storage material.

[0064] In this embodiment, the preferred waterproof and breathable membrane 523 is expanded polytetrafluoroethylene membrane, which has natural hydrophobicity to ensure that indoor water vapor is blocked from affecting the phase change heat storage material layer 521; at the same time, it can also ensure that gas can pass freely to transfer heat energy.

[0065] A condenser tube 522 is attached to the second phase change heat storage material layer 521; the condenser tube 522 is connected to the air source system 5-1; a circulation pump 524 is installed on the condenser tube 522; the circulation pump 524 drives the medium inside the condenser tube 522 to circulate and exchange heat in the condenser 512. A waterproof and breathable membrane 523 is installed on the inner side of the second phase change heat storage material layer 521 to facilitate the inward transfer of heat from the second phase change heat storage material layer 521 while achieving a sealed environment. An epoxy vinyl ester resin coating 525 is applied to the outer side of the condenser tube 522 and the second phase change heat storage material layer 521.

[0066] The control system is connected to the solar power system 3, the air source system 5-1, and the drive mechanism 6 for energy transfer and control. In a preferred embodiment, the frame 1 is equipped with a temperature sensor and a humidity sensor to monitor the temperature and humidity inside the greenhouse; a temperature sensor is also installed on the outside of the frame 1 to monitor the ambient temperature outside the greenhouse. Temperature sensor 1, the humidity sensor, and temperature sensor 2 are all connected to the control system, which collects temperature and humidity information to facilitate the control of the solar power system 3, the air source system 5-1, and the drive mechanism 6. The control system includes a communication module that can connect to a mobile phone or computer via a network for monitoring purposes.

[0067] One embodiment of the present invention discloses a winter heat storage and cold protection device for soft-seed pomegranates in a cold greenhouse in Hotan, Xinjiang. This device utilizes solar energy and ambient air heat energy for heat storage and release, allowing for heating of the greenhouse regardless of whether it is sunny or cloudy. The source of heat differs depending on whether it is sunny or cloudy. On sunny days, heat is absorbed by solar absorber panels 4-1 and transferred to phase change heat storage material layer 4-3 via heat exchange. Phase change heat storage material layer 4-3 stores the heat, and when the temperature inside the greenhouse drops to the phase change temperature of the phase change heat storage material, the heat is released. On cloudy days, energy can come from the ambient air. Evaporator 515 absorbs heat energy from the air, and condenser 512 releases the heat energy for heat exchange, heating phase change heat storage material layer 521. This transfers heat from the outside air to phase change heat storage material layer 521, and when the temperature inside the greenhouse drops to the phase change temperature of the phase change heat storage material, the heat is released.

[0068] During the day, when the temperature inside the antifreeze device is below 17℃, the heat storage component 4 closes the vents, keeping them closed. When the temperature inside the antifreeze device is above 17℃, the temperature sensor transmits information to the control system, which then controls the drive mechanism to open the heat storage component 4. The solar absorber panel 4-1 is then supported by the drive mechanism 6 to collect heat. When the phase change heat storage material layer 4-3 reaches its phase change temperature of 30℃, the phase change heat storage material in the layer absorbs heat and melts. At this time, the vents are fully open. When the external ambient temperature drops to around 5℃, the phase change heat storage material layer 4-3 undergoes phase change crystallization, releasing heat. Considering that the solar absorber panel 4-1 cannot collect heat on cloudy days, a second heat storage component 5 is installed to supplement the heat of the second phase change heat storage material layer 521 when the solar absorber panel 4-1 cannot absorb enough heat.

[0069] Temperature sensor one and temperature sensor two can detect the antifreeze device, plus the double-layer film plastic greenhouse and special materials used for insulation. The phase change material releases heat that can last until morning, ensuring that the temperature inside the antifreeze device remains above zero degrees Celsius throughout the night.

[0070] To further clarify, while the terms "first," "second," etc., may be used herein to describe various elements, these terms should not limit the elements. These terms are used only to distinguish one element from another. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element; these terms are used only to distinguish one element from another. This does not depart from the scope of the exemplary embodiments. Similarly, "element one," "element two," and so on do not represent the order of elements; these terms are used only to distinguish one element from another. As used herein, the term "and / or" includes any and all combinations of one or more associated listed items.

[0071] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" 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. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0072] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0073] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A winter heat storage and cold protection device for soft-seeded pomegranates in a cold-frame greenhouse in Hotan region of Xinjiang, characterized in that, Includes: frame, main insulation layer, solar power supply system, thermal storage component one, thermal storage component two, and control system; The upper part of the frame has ventilation openings; The main insulation layer covers the frame; the main insulation layer includes: polyolefin film one, polyethylene bubble layer and polyolefin film two; The first polyolefin film, the second polyethylene bubble layer, and the third polyolefin film are sequentially bonded together from the outside to the inside. The interior of the polyethylene bubble layer is filled with argon gas. The solar power supply system includes: solar panels, a photovoltaic controller, and a storage battery; The photovoltaic controller is connected to the solar panel; The battery is connected to the photovoltaic controller, and through the photovoltaic controller, it is connected to the solar panel for storing electrical energy; The heat storage component is hinged to the frame and can swing relative to the frame; the heat storage component can be driven to swing, closing or opening the vent. The heat storage component includes: a solar heat absorption panel, an epoxy vinyl resin coating, a phase change heat storage material layer, and a waterproof and breathable membrane. The solar heat absorber, the epoxy vinyl resin coating, the phase change heat storage material layer, and the waterproof and breathable membrane are sequentially bonded together from the outside to the inside. A driving mechanism is provided between the heat storage component and the frame to drive the heat storage component to swing. The second heat storage component is located at the lower part of the frame; The second heat storage component includes: an air energy system and a heat storage structure; The air energy system is connected to the solar power system to utilize the heat energy in the air. The heat storage structure includes: a second phase change heat storage material layer, a condenser tube, a second waterproof and breathable membrane, and a second epoxy vinyl resin coating. The second phase change thermal storage material layer is fixedly disposed on the frame; The condenser tube is attached to the second phase change heat storage material layer; the condenser tube is connected to the air energy system; a circulation pump is installed on the condenser tube; The second waterproof and breathable membrane is disposed on the inner side of the second phase change heat storage material layer; The epoxy vinyl resin coating is applied to the outer side of the condenser tube and the phase change heat storage material layer 2; The control system is connected to the solar power supply system, the air energy system, and the drive mechanism; The phase change thermal storage material layer one includes: an acrylic container one and phase change thermal storage material particles one; The phase change thermal storage material particles are filled inside the acrylic container. The waterproof and breathable membrane is an expanded polytetrafluoroethylene membrane. The second waterproof and breathable membrane is an expanded polytetrafluoroethylene membrane.

2. The winter heat storage and cold protection device for soft-seeded pomegranates in a cold-frame greenhouse in Hotan region of Xinjiang, as described in claim 1, is characterized in that... The second phase change thermal storage material layer includes: an acrylic container and phase change thermal storage material particles. The phase change thermal storage material particles are filled inside the acrylic container.

3. The winter heat storage and cold protection device for soft-seeded pomegranates in a cold-frame greenhouse in Hotan region of Xinjiang, as described in claim 2, is characterized in that... The phase change thermal storage material particles one and the phase change thermal storage material particles two are made of the same material.

4. The winter heat storage and cold protection device for soft-seeded pomegranates in a cold-frame greenhouse in Hotan region of Xinjiang, as described in claim 1, is characterized in that... The outer edges of the first polyolefin film, the polyethylene bubble layer, and the second polyolefin film are sealed.

5. The winter heat storage and cold protection device for soft-seeded pomegranates in a cold-frame greenhouse in Hotan region of Xinjiang, as described in claim 1, is characterized in that... The phase change thermal storage material particles are calcium chloride hexahydrate thermal storage materials.

6. The winter heat storage and cold protection device for soft-seeded pomegranates in a cold-frame greenhouse in Hotan region of Xinjiang, as described in claim 1, is characterized in that... The frame is equipped with a temperature sensor and a humidity sensor. A second temperature sensor is installed on the outside of the frame; The temperature sensor one, the humidity sensor and the temperature sensor two are respectively connected to the control system.

7. The winter heat storage and cold protection device for soft-seeded pomegranates in a cold-frame greenhouse in Hotan region of Xinjiang, as described in claim 1, is characterized in that... The drive mechanism is an electric telescopic rod.

8. The winter heat storage and cold protection device for soft-seeded pomegranates in a cold-frame greenhouse in Hotan region of Xinjiang, as described in claim 1, is characterized in that... The air source heat pump system includes: a compressor, a condenser, a storage container, an expansion valve, an evaporator, and a vapor-liquid separator; The condenser is connected to the output end of the compressor; the storage container is connected to the refrigerant output end of the condenser; the expansion valve is connected to the output port of the storage container; the evaporator is connected to the expansion valve; the input end of the vapor-liquid separator is connected to the output end of the evaporator; the output end of the vapor-liquid separator is connected to the input end of the compressor. The medium end of the condenser is connected to the condenser tube, and the circulation pump is used to drive the medium to circulate in the condenser and the condenser tube.

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