Movable plug-in type phase change heating and refrigerating system

Abstract

The invention belongs to the technical field of air conditioning and phase change energy storage application, and relates to a movable insertion type phase change heating and refrigerating system which comprises a rod-shaped phase change material assembly, a phase change material processing box and at least one phase change material containing terminal. The phase-change material processing box is used for heating or cooling a rod-shaped phase-change material, and the phase-change material placing terminal is used for placing a heated or cooled rod-shaped phase-change material assembly and releasing heat or cold stored in the rod-shaped phase-change material assembly to a corresponding place according to environmental requirements. The phase-change material can be heated or refrigerated at night by using valley electricity, and flexible heating or refrigeration of different areas is realized by movably placing the phase-change material, so that the energy utilization efficiency is favorably improved, and the multi-scene use requirements are met.

Description

Technical Field

[0001] The present invention belongs to the technical field of air conditioning and phase change energy storage application, and in particular relates to a mobile plug-in phase change heating and cooling system. Background Art

[0002] In today's society, with rapid economic development and the continuous improvement of people's living standards, the demand for comfortable indoor temperature environments is increasing. Heating and cooling equipment is becoming more and more widely used in various fields such as industry, commerce, and homes. However, traditional heating and cooling equipment has exposed many problems in actual use that need to be solved.

[0003] Traditional heating equipment, such as centralized heating systems, relies primarily on a unified heat source and pipe network to provide heat to large areas. While this centralized heating model can meet large-scale heating needs to a certain extent, it has significant drawbacks. It cannot precisely meet the personalized heating needs of local areas. For example, in large buildings, different rooms or areas may have different temperature requirements due to different functions, different occupancy densities, or different usage times. However, centralized heating systems can only adjust the temperature overall, making it difficult to achieve independent control of each local area. Furthermore, when it comes to personalized heating needs during specific time periods, centralized heating systems typically operate according to fixed time and temperature patterns, unable to flexibly adjust to users' actual usage times. For example, some users may not need heating during specific time periods, or may require higher or lower temperatures, but centralized heating systems cannot respond to these needs in a timely manner. This leads to significant energy waste, increases energy consumption costs, and is inconsistent with the current development concept of green energy conservation.

[0004] In the field of refrigeration equipment, traditional air conditioners are the most common cooling tools. However, when used in small spaces or temporary locations, the disadvantages of traditional air conditioners become apparent. In small spaces, traditional air conditioners are generally high-power, consuming a large amount of electricity during operation, resulting in high energy costs. Moreover, the installation of traditional air conditioners requires complex piping arrangements and outdoor unit installation. For temporary locations, the installation process is cumbersome and inconvenient, not only consuming time and manpower, but also potentially causing damage to the structure of the venue. It is also difficult to dismantle when no longer in use, which greatly limits the application of traditional air conditioners in small spaces and temporary locations.

[0005] To address the high energy consumption of traditional heating and cooling equipment, phase change energy storage technology has been gradually applied to related devices. Phase change energy storage devices store and release heat through the phase change process of phase change materials, thereby achieving temperature regulation. However, existing phase change energy storage devices are mostly limited to a single heating or cooling function, meaning they can only be used for heating or cooling, and cannot flexibly switch between heating and cooling functions on the same device. Furthermore, these phase change energy storage devices generally lack mobility and usually require fixed installation in a specific location, making them difficult to move and adjust according to changing usage scenarios. For example, in some scenarios where the location of use frequently changes, such as temporary event venues and outdoor work areas, existing phase change energy storage devices cannot be easily moved to these locations and function effectively. Furthermore, due to the inflexible function switching and lack of mobility, existing phase change energy storage devices are difficult to adapt to diverse scenarios. Whether in homes, offices, commercial spaces, or industrial areas, they cannot fully meet the personalized and flexible heating and cooling needs of different users in different scenarios.

[0006] In summary, traditional heating and cooling equipment and existing phase change energy storage equipment have obvious shortcomings in energy consumption, flexibility, functional diversity and scenario adaptability. There is an urgent need for a new type of equipment that can solve the above problems to achieve efficient and energy-saving, flexible and adaptable heating and cooling functions in various scenarios. Summary of the Invention

[0007] The purpose of this invention is to propose a mobile plug-in phase change heating and cooling system, which can use valley electricity to heat or cool phase change materials at night. By moving the phase change materials, flexible heating or cooling in different areas can be achieved, thereby improving energy utilization efficiency and meeting the needs of multiple scenarios.

[0008] In order to achieve the above object, the technical solutions proposed by the present invention are as follows: A mobile plug-in phase change heating and cooling system includes a rod-shaped phase change material component, a phase change material processing box and at least one phase change material placement terminal. The rod-shaped phase change material component is used to store cold or heat, the phase change material processing box is used to heat or cool the rod-shaped phase change material, and the phase change material placement terminal is used to place the heated or cooled rod-shaped phase change material component and release the heat or cold stored in the rod-shaped phase change material component to a corresponding place according to environmental requirements.

[0009] Preferably, the rod-shaped phase change material assembly includes a heat-conducting metal sleeve filled with a composite phase change material, wherein the composite phase change material is a graphene micro-nanoporous membrane / paraffin composite material (GPCMs) or a hyperbolic graphene / paraffin composite material (PGC).

[0010] Preferably, the heat-conducting metal sleeve is provided with a filling port to facilitate the injection and replenishment of the composite phase change material. A sealing plug is embedded in the filling port to prevent leakage of the composite phase change material. The heat-conducting metal sleeve can be filled with a combination of materials with different phase change temperatures to achieve wide temperature range energy storage.

[0011] Preferably, the surface of the heat-conducting metal sleeve is provided with anti-slip textures to facilitate plugging and unplugging operations.

[0012] Preferably, the phase change material processing box uses an integrated cooling and heating unit, which can be a commercially available one. During use, the rod-shaped phase change material component placed in the cooling and heating unit can be heated or cooled as needed. However, since commercially available cooling and heating units are not specifically designed for the rod-shaped phase change material components of this application, in actual use, they may suffer from defects such as low space utilization and slow heat exchange efficiency.

[0013] Preferably, the phase change material processing box includes a box body and a box cover, one side of the box cover is hingedly connected to the box body and the other side is snap-connected to the box body, the box cover is provided with a controller, the box body is provided with a heating chamber and a cooling chamber, the top and bottom of the heating chamber are provided with heating tubes, the heating tubes are provided with resistance wires electrically connected to the controller, the top and bottom of the cooling chamber are provided with semiconductor cooling plates electrically connected to the controller, the heating chamber and the cooling chamber are provided with temperature sensors and a plurality of shelves, the temperature sensors are electrically connected to the controller, and the opposite side walls of the heating chamber and the cooling chamber are provided with guide rails corresponding to the shelves, the guide rails being used to support the shelves. When the diameter of the rod-shaped phase change material component is relatively small (less than the spacing between two adjacent shelves), it can be placed on multiple shelves. When the diameter of the rod-shaped phase change material component is relatively large (greater than the spacing between two adjacent shelves), only the shelf plates on the bottom layer can be retained. This arrangement can heat or cool the rod-shaped phase change material component in the heating cavity or the cooling cavity as needed, and because it is designed specifically for the rod-shaped phase change material component, its space utilization and heat exchange efficiency will be greatly improved.

[0014] Preferably, the shelf plate is provided with a shelf groove matching the rod-shaped phase change material components, for neatly stacking the rod-shaped phase change material components to achieve uniform heating or cooling of the rod-shaped phase change material components.

[0015] Preferably, the phase change material placement terminal includes a heat exchange box, the four corners of the bottom of the heat exchange box are connected to universal wheels with brakes, and the bottom and / or bottom side of the heat exchange box are provided with an air inlet, the air inlet is provided with an exhaust fan, and an air inlet filter is provided on the outside of the exhaust fan, the upper part of the heat exchange box is provided with at least one row of slots matching the rod-shaped phase change material components, the slots are inserted with rod-shaped phase change material components, and fins are provided on the outer groove walls of the slots, and the top and / or top side of the heat exchange box are provided with an air outlet, and the air outlet is provided with an air outlet filter. By providing universal wheels with brakes, the placement position of the phase change material placement terminal can be flexibly adjusted, and by providing an exhaust fan, the efficiency of heat and cold exchange between the rod-shaped phase change material component and the outside world can be accelerated. By providing an air inlet filter and an air outlet filter, it is beneficial to ensure the cleanliness of the internal environment of the heat exchange box. More preferably, the inner wall of the slot is provided with a thermally conductive silicone layer, which can further achieve more efficient transfer of heat or cold.

[0016] Preferably, the exhaust fan is driven by a variable frequency motor, and a temperature sensor 2 and a controller 2 are provided on the outer wall of the heat exchange box. The variable frequency motor and the temperature sensor 2 are electrically connected to the controller 2 respectively. The temperature sensor 2 is used to monitor the ambient temperature of the place of use in real time. The controller 2 can adjust the air output of the exhaust fan according to the ambient temperature to achieve precise control of the ambient temperature.

[0017] Preferably, a push-pull handle is provided on one side of the top of the heat exchange box for easy operation.

[0018] The present invention also includes other components that enable it to be used normally, which are all conventional means in the field. In addition, devices or components not limited in the present invention, such as universal wheels with brakes, integrated hot and cold machines, composite phase change materials, controllers, temperature sensors, resistance wires, semiconductor refrigeration plates, etc., all adopt existing technologies in the field. Technicians in this field can select their specifications and models according to actual usage requirements and clearly understand their specific use. They will not be described in detail here.

[0019] The working principle of the present invention is that during the nighttime low-off-peak electricity price period, the rod-shaped phase change material assembly is placed in the phase change material processing box. When heating in winter, the composite phase change material is heated to a set temperature to store heat energy; when cooling in summer, the phase change material is cooled to a low temperature to store cold energy. When used during the day, the heated or cooled rod-shaped phase change material assembly is inserted into the slot of the phase change material placement terminal. If heating is required, the composite phase change material releases heat and dissipates it to the surrounding space through the fins; if cooling is required, the cold energy is transferred to the environment through the fins. According to actual needs, the phase change material placement terminal is pushed to different positions to achieve flexible heating or cooling.

[0020] Compared with the prior art, this application has the following beneficial effects: 1. It integrates heating and cooling functions, achieving warmth in winter and coolness in summer through one system, improving equipment utilization; it utilizes off-peak hours to heat or cool phase change materials, reducing operating costs.

[0021] 2. The separation design of the rod-shaped phase change material component and the placement terminal, combined with the mobile function, can flexibly meet the heating or cooling needs of different areas and time periods. It is particularly suitable for scenarios such as temporary places and local space adjustment.

[0022] 3. The design of thermal conductive metal sleeve, thermal conductive silicone layer and fins optimizes the efficiency of heat and cold transfer; the anti-slip texture improves convenience and comfort of use.

[0023] In summary, the present invention can utilize valley electricity to heat or cool phase change materials at night, and achieve flexible heating or cooling in different areas by moving the phase change materials, which is beneficial to improving energy utilization efficiency and meeting the needs of multiple scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of the overall structure of the phase change material processing box in an embodiment of the present invention.

[0025] Figure 2 Schematic diagram of the overall structure of the phase change material placement terminal in an embodiment of the present invention.

[0026] Figure 3 Schematic diagram of the appearance structure of the rod-shaped phase change material component in an embodiment of the present invention. DETAILED DESCRIPTION The technology of the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0027] Example like Figures 1-3 As shown, this embodiment proposes a mobile plug-in phase change heating and cooling system, including a rod-shaped phase change material component, a phase change material processing box and a phase change material placement terminal, the rod-shaped phase change material component is used to store cold or heat, the phase change material processing box is used to heat or cool the rod-shaped phase change material, and the phase change material placement terminal is used to place the heated or cooled rod-shaped phase change material component, and release the heat or cold stored in the rod-shaped phase change material component to the corresponding place according to environmental needs.

[0028] Specifically, the rod-shaped phase change material assembly includes a thermally conductive metal sleeve 1, which is filled with a composite phase change material (not shown). The composite phase change material is a graphene microporous membrane / paraffin wax composite (GPCMs) or a hyperbolic graphene / paraffin wax composite (PGC). The thermally conductive metal sleeve is provided with a filling port to facilitate the injection and replenishment of the composite phase change material. A sealing plug 2 is embedded in the filling port to prevent leakage of the composite phase change material. The interior of the thermally conductive metal sleeve can be filled with a combination of materials with different phase change temperatures, achieving energy storage over a wide temperature range. The surface of the thermally conductive metal sleeve is provided with anti-slip grooves 3 to facilitate insertion and removal.

[0029] In this embodiment, the phase change material processing box includes a box body 4 and a box lid 5. One side of the box lid is hingedly connected to the box body and the other side is snap-fitted to the box body. The box lid is provided with a controller 6. The box body is provided with a heating chamber 7 and a cooling chamber 8. The top and bottom of the heating chamber are provided with heating tubes 9, each of which is equipped with a resistance wire 10 electrically connected to the controller 1. The top and bottom of the cooling chamber are provided with semiconductor cooling plates 11 electrically connected to the controller 1. Each of the heating and cooling chambers is provided with a temperature sensor 12 and three shelves 13, each of which is electrically connected to the controller 1. Guide rails 14 are provided on the opposite side walls of the heating and cooling chambers, corresponding to the shelves, to support the shelves. If the diameter of the rod-shaped phase change material component is relatively small (less than the spacing between adjacent shelves), it can be placed on multiple shelves. If the diameter of the rod-shaped phase change material component is relatively large (greater than the spacing between adjacent shelves), only the bottom shelf can be retained. This arrangement can heat or cool the rod-shaped phase change material component in the heating cavity or the cooling cavity as needed, and because it is designed specifically for the rod-shaped phase change material component, its space utilization and heat exchange efficiency will be greatly improved.

[0030] Continuing with the above embodiment, the shelf is provided with a shelf slot 15 that matches the rod-shaped phase change material assembly, which is used to neatly stack the rod-shaped phase change material assembly to achieve uniform heating or cooling of the rod-shaped phase change material assembly. The phase change material placement terminal includes a heat exchange box 16, and the four corners of the bottom of the heat exchange box are correspondingly connected to universal wheels 17 with brakes. The bottom and bottom side of the heat exchange box are provided with an air inlet, and the air inlet is provided with an exhaust fan 18, and an air inlet filter 19 is provided on the outside of the exhaust fan. The upper part of the heat exchange box is provided with three rows of slots 20 that match the rod-shaped phase change material assembly, and the rod-shaped phase change material assembly is inserted into the slot, and the outer slot wall of the slot is provided with fins 21. The top and top side of the heat exchange box are provided with an air outlet, and the air outlet is provided with an air outlet filter 22. Universal wheels with brakes allow for flexible adjustment of the placement of the phase change material terminal. An exhaust fan accelerates the exchange of heat and cold between the rod-shaped phase change material assembly and the outside world. Inlet and outlet filters ensure a clean environment within the heat exchanger. In this embodiment, a thermally conductive silicone layer (not shown) is applied to the inner wall of the slot to further enhance heat or cold transfer efficiency.

[0031] In addition, the exhaust fan is driven by a variable frequency motor, and a second temperature sensor 23 and a second controller 24 are installed on the outer wall of the heat exchange box. The variable frequency motor and temperature sensor 2 are electrically connected to the second controller. The temperature sensor 2 is used to monitor the ambient temperature of the use area in real time. The second controller can adjust the air volume of the exhaust fan according to the ambient temperature to achieve precise control of the ambient temperature. A push-pull handle 25 is installed on the top side of the heat exchange box for easy operation.

[0032] In this embodiment, the universal wheel with brakes, the integrated hot and cold machine, the composite phase change material, the controller, the temperature sensor, the resistance wire, the semiconductor refrigeration plate, etc. all adopt the existing technology in this field. Those skilled in the art can select their specifications and models according to actual usage requirements and clearly understand their specific use, and will not be described in detail here.

[0033] The working principle of the present invention is that during the nighttime low-off-peak electricity price period, the rod-shaped phase change material assembly is placed in the phase change material processing box. When heating in winter, the composite phase change material is heated to a set temperature to store heat energy; when cooling in summer, the phase change material is cooled to a low temperature to store cold energy. When used during the day, the heated or cooled rod-shaped phase change material assembly is inserted into the slot of the phase change material placement terminal. If heating is required, the composite phase change material releases heat and dissipates it to the surrounding space through the fins; if cooling is required, the cold energy is transferred to the environment through the fins. According to actual needs, the phase change material placement terminal is pushed to different positions to achieve flexible heating or cooling.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A mobile plug-in phase change heating and cooling system, characterized by: It includes a rod-shaped phase change material component, a phase change material processing box and at least one phase change material placement terminal. The rod-shaped phase change material component is used to store cold or heat, the phase change material processing box is used to heat or cool the rod-shaped phase change material, and the phase change material placement terminal is used to place the heated or cooled rod-shaped phase change material component and release the heat or cold stored in the rod-shaped phase change material component to the corresponding place according to environmental needs.

2. The mobile plug-in phase change heating and cooling system according to claim 1, characterized in that: The rod-shaped phase change material component comprises a heat-conducting metal sleeve, and the heat-conducting metal sleeve is filled with a composite phase change material.

3. The mobile plug-in phase change heating and cooling system according to claim 2, characterized in that: A filling port is provided on the heat-conducting metal sleeve, and a sealing plug is embedded in the filling port.

4. A mobile plug-in phase change heating and cooling system according to claim 2 or 3, characterized in that: The surface of the heat-conducting metal sleeve is provided with anti-slip lines.

5. The mobile plug-in phase change heating and cooling system according to claim 1, characterized in that: The phase change material processing box adopts a cold and hot integrated machine.

6. The mobile plug-in phase change heating and cooling system according to claim 1, characterized in that: The phase change material processing box includes a box body and a box cover, one side of the box cover is hinged to the box body, and the other side is snap-connected to the box body, the box cover is provided with a controller 1, the box body is provided with a heating chamber and a cooling chamber, the top and bottom of the heating chamber are provided with heating tubes, the heating tubes are provided with resistance wires electrically connected to the controller 1, the top and bottom of the cooling chamber are provided with semiconductor cooling plates electrically connected to the controller 1, the heating chamber and the cooling chamber are provided with a temperature sensor 1 and a number of shelves, the temperature sensor 1 is electrically connected to the controller 1, the opposite side walls of the heating chamber and the cooling chamber are provided with guide rails matching the shelves, and the guide rails are used to support the shelves.

7. The mobile plug-in phase change heating and cooling system according to claim 6, characterized in that: The shelf plate is provided with a shelf groove matching the rod-shaped phase change material component.

8. The mobile plug-in phase change heating and cooling system according to claim 1, characterized in that: The phase change material placement terminal includes a heat exchange box, and the four corners of the bottom of the heat exchange box are correspondingly connected to universal wheels with brakes, and the bottom and / or bottom side of the heat exchange box are provided with an air inlet, the air inlet is provided with an exhaust fan, and the outside of the exhaust fan is provided with an air inlet filter, the upper part of the heat exchange box is provided with at least one row of slots matching the rod-shaped phase change material components, the slots are inserted with rod-shaped phase change material components and fins are provided on the outer groove walls of the slots, the top and / or top side of the heat exchange box are provided with an air outlet, and the air outlet is provided with an air outlet filter.

9. The mobile plug-in phase change heating and cooling system according to claim 8, characterized in that: The exhaust fan is driven by a variable frequency motor, and a second temperature sensor and a second controller are provided on the outer side wall of the heat exchange box. The variable frequency motor and the second temperature sensor are electrically connected to the second controller respectively.

10. A mobile plug-in phase change heating and cooling system according to claim 8 or 9, characterized in that: A push-pull handle is provided on one side of the top of the heat exchange box.

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