Energy storage and allocation system for winter and summer

Abstract

The invention relates to a winter and summer energy storage and allocation system, and belongs to the technical field of energy utilization. Comprising a vertical channel buried underground, an energy storage box is arranged in the vertical channel in an up-down sliding mode, a backflow pipe and a liquid discharging pipe which are connected with the energy storage box in a penetrating mode are arranged outside the energy storage box, a liquid pump is arranged on the backflow pipe, and the tail end of the liquid discharging pipe and the tail end of the backflow pipe are both arranged outside the vertical channel. A heat exchange module is connected between the liquid discharging pipe and the backflow pipe. The underground depth of the energy storage box can be adjusted, so that the external temperature can be adjusted through the temperatures of different depths of soil, different temperatures can be adjusted in a single season, and hot summer and winter use can be achieved.

Description

Technical Field

[0001] The present application belongs to the field of energy utilization technology, and specifically relates to a winter and summer energy storage and allocation system. Background Art

[0002] As one of the most common materials in nature, the thermophysical properties of soil are crucial to soil energy storage technology. Parameters such as thermal conductivity, specific heat capacity, and thermal diffusivity of soil directly affect the efficiency of heat transfer. Different types of soil (such as sand, clay, and loam) have different thermophysical properties due to their different particle size, density, and water content. Generally speaking, clay has higher heat capacity and lower thermal conductivity, making it more suitable as a long-term thermal energy storage medium.

[0003] In order to effectively utilize the soil for energy exchange, it is necessary to design a reasonable underground heat exchange system. This type of system mainly includes two types: underground tube heat exchangers and direct buried heat exchangers. The underground tube heat exchanger realizes heat exchange with the soil by burying pipes underground and circulating liquid (usually water or antifreeze) in them. The direct buried heat exchanger directly buries the heat exchange element (such as metal plates or fins) in the soil and exchanges heat through solid-solid contact.

[0004] Using soil energy storage to regulate temperature not only helps save energy and reduce emissions, but also has good environmental friendliness and sustainable development. Compared with traditional air conditioning and central heating methods, soil energy storage technology reduces dependence on fossil fuels and reduces greenhouse gas emissions. At the same time, since this technology mainly uses renewable energy (such as solar energy, wind energy, etc.) as a driving source, it is more in line with the development trend of green buildings.

[0005] In short, with the increasing global awareness of environmental protection and the growing demand for efficient energy-saving technologies, soil energy storage and temperature regulation as an innovative means of building environment regulation is gradually gaining attention and application. In the future, with the deepening of relevant research and the advancement of technology, it is expected that this technology will be more widely used in more fields. Summary of the invention

[0006] The technical problem to be solved by the present application is: to overcome the deficiencies of the prior art and to provide an energy storage and allocation system for winter and summer. The depth of the energy storage box located underground in the present application can be adjusted, and then the external temperature can be adjusted by the temperature at different depths of the soil. Different temperatures can be adjusted in a single season, and summer heat can be achieved for winter use.

[0007] The technical solution adopted by this application to solve the problems existing in the prior art is:

[0008] A winter and summer energy storage and allocation system comprises a vertical channel buried underground, an energy storage box is provided inside the vertical channel for sliding up and down, a return pipe and a down-liquid pipe connected to the energy storage box are provided outside the energy storage box, a liquid pump is provided on the return pipe, the ends of the down-liquid pipe and the return pipe are both placed outside the vertical channel, and a heat exchange module is connected between the down-liquid pipe and the return pipe.

[0009] Preferably, the top cover of the vertical channel is provided with an upper cover, and the upper cover is located on the ground surface.

[0010] Preferably, a winch is provided on the ground surface, and the winch is connected to the energy storage box via a traction rope.

[0011] Preferably, end plates are protruding from both the upper and lower sides of the energy storage box, and the outer dimensions of the end plates are the same as the outer dimensions of the horizontal cross-section of the inner cavity of the vertical channel.

[0012] Preferably, a through hole is respectively provided around the end plate, and four vertical guide rods are fixed inside the vertical channel, and the guide rods pass through the through holes.

[0013] Preferably, a plurality of heat exchange chambers spaced apart from each other are recessed on the side of the vertical channel, and the height of the heat exchange chambers is less than or equal to the height of the energy storage box.

[0014] Preferably, a heat exchange device is provided inside the heat exchange chamber.

[0015] Preferably, the heat exchange device comprises an inner plate and an insertion rod, wherein the inner plate is vertically arranged inside the heat exchange chamber, the insertion rod is fixed to a side of the inner plate away from the center of the vertical channel, and the end of the insertion rod passes through the inner wall of the heat exchange chamber and is placed in the soil.

[0016] Preferably, the inner plate is in close contact with the inner wall of the heat exchange chamber.

[0017] Preferably, a heat sink is provided at one end of the inner plate away from the insertion rod.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) By utilizing the natural heat capacity of the soil, excess heat is stored in the soil in the summer and heat is extracted from the soil in the winter, which can significantly reduce the energy consumption of buildings. Compared with traditional air conditioning and heating systems, soil energy storage systems can manage indoor temperature more efficiently, especially in seasons with large temperature differences, and can better maintain a comfortable indoor environment.

[0020] (2) Reduce greenhouse gas emissions: By reducing dependence on fossil fuels, soil energy storage technology helps reduce the emission of greenhouse gases such as carbon dioxide and plays a positive role in combating climate change. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present application is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 This application is a structure diagram of a winter and summer energy storage and deployment system.

[0023] Figure 2 A partial cross-sectional view of a winter and summer energy storage and deployment system for this application.

[0024] Figure 3 This application is a diagram of the structure of an energy storage box in a winter and summer energy storage and dispatching system.

[0025] Figure 4 This application provides a structural diagram of a heat exchange device in a winter and summer energy storage and allocation system.

[0026] In the figure: 1-vertical channel, 101-bottom foundation pit, 102-heat exchange chamber, 103-upper cover, 2-energy storage box, 201-end plate, 202-through hole, 3-buffer tank, 301-drain pipe, 4-lower liquid pipe, 5-reflux pipe, 6-winch, 7-traction rope, 8-guide rod, 9-heat exchange device, 901-inner plate, 902-insertion rod, 903-heat sink. DETAILED DESCRIPTION

[0027] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0028] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present application.

[0029] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] The following is a further detailed description of a winter and summer energy storage and allocation system of the present application in conjunction with the accompanying drawings, but it is not intended to limit the present application.

[0031] A winter and summer energy storage and dispatching system, comprising Figures 1 to 4 As shown, it includes a vertical channel 1 buried underground, the inner wall of the vertical channel 1 is a reinforced concrete structure, and waterproofing is performed to prevent moisture in the soil from penetrating into the interior of the vertical channel 1.

[0032] The upper end of the vertical channel 1 is open, and the upper opening of the vertical channel 1 is covered with an upper cover 103, which is located on the ground.

[0033] An energy storage box 2 is provided inside the vertical channel 1 to slide up and down, and a return pipe 5 and a lower liquid pipe 4 are provided outside the energy storage box 2 to be connected thereto. A liquid pump is provided on the return pipe 5, and the ends of the lower liquid pipe 4 and the return pipe 5 are both placed outside the vertical channel 1, and a heat exchange module is connected between the lower liquid pipe 4 and the return pipe 5.

[0034] In order to improve the energy storage efficiency, the energy storage box 2 is filled with phase change energy storage capsules. Phase change energy storage capsules are a technology that uses the physical properties of phase change materials to store and release heat. Phase change materials can undergo phase changes (such as solid to liquid or vice versa) within a specific temperature range, absorbing or releasing a large amount of latent heat in the process, thereby achieving energy storage and release. Phase change energy storage capsules encapsulate PCMs in capsules or containers for use in various application scenarios, such as construction, industrial process control, and heat dissipation of electronic products.

[0035] The working principle of phase change energy storage capsule is as follows:

[0036] Endothermic process: When the ambient temperature rises above the phase change temperature of PCM, PCM begins to change from solid to liquid, absorbing heat in the process, keeping the ambient temperature relatively stable.

[0037] Heat release process: When the ambient temperature drops below the phase change temperature of PCM, PCM changes from liquid to solid, releasing the previously stored heat, which also helps to maintain the stability of the ambient temperature.

[0038] Therefore, the solvent of the heat transfer liquid that can be filled in the energy storage box 2 will change with the expansion and contraction of the phase change energy storage capsule. In order to adjust the volume, in this embodiment, a buffer tank 3 is provided outside the energy storage box 2, and the downpipe 4 is connected to the top of the buffer tank 3, and the bottom of the buffer tank 3 is connected to the energy storage box 2 through the drain tank 301, and the liquid level inside the buffer tank 3 is always lower than 80% of the solvent in the buffer tank 3.

[0039] A winch 6 is provided on the ground surface. The winch 6 is fixed on the upper cover 103 . The winch 6 is connected to the energy storage box 2 via a traction rope 7 .

[0040] The energy storage box 2 is provided with end plates 201 on both upper and lower sides, and the outer dimensions of the end plates 201 are the same as the outer dimensions of the horizontal cross-section of the inner cavity of the vertical channel 1.

[0041] A through hole 202 is respectively formed around the end plate 201 , and four vertical guide rods 8 are fixed inside the vertical channel 1 , and the guide rods 8 pass through the through holes 202 .

[0042] Due to different temperatures at different depths underground, in order to change the temperature of the heat exchange fluid, the side of the vertical channel 1 is recessed with a plurality of heat exchange chambers 102 arranged at intervals up and down, and the height of the heat exchange chamber 102 is less than or equal to the height of the energy storage box 2.

[0043] A heat exchange device 9 is provided inside the heat exchange chamber 102 .

[0044] The heat exchange device 9 includes an internal plate 901 and an insertion rod 902. The internal plate 901 is vertically arranged inside the heat exchange chamber 102. The insertion rod 902 is fixed to the side of the internal plate 901 away from the center of the vertical channel 1. The end of the insertion rod 902 passes through the inner wall of the heat exchange chamber 102 and is placed in the soil.

[0045] The inner plate 901 is closely attached to the inner wall of the heat exchange chamber 102. A heat sink 903 is provided at one end of the inner plate 901 away from the plug 102.

[0046] A bottom foundation pit 101 is provided at the bottom of the lowest heat exchange chamber 102, and the energy storage box 2 can be moved into the bottom foundation pit 101. When moved into the bottom foundation pit 101, the upper end surface of the energy storage box 2 is lower than the bottom surface of the heat exchange chamber 102, which is convenient for personnel to enter the heat exchange chamber 102 for maintenance. At the same time, a submersible pump is also provided inside the bottom foundation pit 101. If water seepage occurs in the vertical channel 1, water will gather inside the bottom foundation pit 101, which is convenient for discharge through the submersible pump.

[0047] The implementation methods of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above implementation methods, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present application.

Claims

1. A winter and summer energy storage and deployment system, characterized by: The invention comprises a vertical channel (1) buried underground, wherein an energy storage box (2) is provided inside the vertical channel (1) so as to slide up and down, and a return pipe (5) and a lower liquid pipe (4) which are connected to the energy storage box (2) are provided outside the energy storage box (2), and a liquid pump is provided on the return pipe (5), and the ends of the lower liquid pipe (4) and the return pipe (5) are both placed outside the vertical channel (1), and a heat exchange module is connected between the lower liquid pipe (4) and the return pipe (5).

2. The winter and summer energy storage and deployment system according to claim 1 is characterized by: The top of the vertical channel (1) is provided with an upper cover (103), and the upper cover (103) is located on the ground surface.

3. A winter and summer energy storage and allocation system according to claim 1 or 2, characterized in that: A winch (6) is provided on the ground surface, and the winch (6) is connected to the energy storage box (2) via a traction rope (7).

4. The winter and summer energy storage and deployment system according to claim 3 is characterized by: The energy storage box (2) is provided with end plates (201) protruding from both the upper and lower sides, and the outer dimensions of the end plates (201) are the same as the outer dimensions of the horizontal cross section of the inner cavity of the vertical channel (1).

5. The winter and summer energy storage and deployment system according to claim 4 is characterized by: The end plate (201) is respectively provided with a through hole (202) around it, and four vertical guide rods (8) are fixed inside the vertical channel (1), and the guide rods (8) pass through the through holes (202).

6. A winter and summer energy storage and allocation system according to claim 1 or 2 or 4 or 5, characterized in that: A plurality of heat exchange chambers (102) are recessed on the side of the vertical channel (1) and arranged at intervals up and down, and the height of the heat exchange chambers (102) is less than or equal to the height of the energy storage box (2).

7. The winter and summer energy storage and deployment system according to claim 6 is characterized by: A heat exchange device (9) is provided inside the heat exchange chamber (102).

8. The winter and summer energy storage and deployment system according to claim 7 is characterized by: The heat exchange device (9) comprises an internal plate (901) and an insertion rod (902), wherein the internal plate (901) is vertically arranged inside the heat exchange chamber (102), the insertion rod (902) is fixed to a side of the internal plate (901) away from the center of the vertical channel (1), and the end of the insertion rod (902) passes through the inner wall of the heat exchange chamber (102) and is placed in the soil.

9. The winter and summer energy storage and deployment system according to claim 8, characterized in that: The inner plate (901) is in close contact with the inner wall of the heat exchange chamber (102).

10. A winter and summer energy storage and deployment system according to claim 8 or 9, characterized in that: A heat sink (903) is provided at one end of the inner plate (901) facing away from the insertion rod (102).

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