CN112033202A - Method and device for graphene enhanced radiation energy storage - Google Patents

Abstract

The invention discloses a method and a device for graphene reinforced radiation energy storage, which comprise an energy storage well, wherein a soil coupler is arranged in the energy storage well, the soil coupler is arranged along the depth direction of the energy storage well, a fluid channel for fluid circulation is arranged in the soil coupler, at least one coupling part extending outwards is fixedly arranged on the periphery of the soil coupler, and the coupling part or/and the soil coupler are/is provided with a graphene heat conduction layer. The graphene material is added on the soil coupler and the peripheral coupling part of the soil coupler, so that the radiation heat exchange power of the soil coupler is enhanced, and the radiation energy storage capacity of the soil coupler is enhanced. The graphene soil coupler has the heat conductivity coefficient of 0.79W/(m.k), and the radiation heat exchange power is greatly improved (the heat exchange power reaches 300W/m).

Description

A kind of graphene-enhanced radiation energy storage method and device

technical field

The invention relates to a method and a device for strengthening radiation energy storage of graphene.

Background technique

Soil and water body is a huge solar collector, which collects 47% of solar radiation energy, which is much more than what humans use every year (underground water body receives solar radiation energy indirectly through soil); it is also a huge The dynamic energy balance system, the soil and water bodies on the surface naturally maintain a relative balance of energy reception and emission, and the success of the geothermal energy technology makes it a reality to utilize the nearly infinite solar energy or ground energy stored in it. A heating, cooling and air conditioning system that uses the solar energy stored in the soil as a cold and heat source to convert energy.

It uses water and ground energy (groundwater, soil or surface water) to exchange cold and heat as a cold and heat source for heating and cooling equipment. In winter, the heat in the ground energy is "taken out" to supply indoor heating. "heat source"; in summer, the indoor heat is taken out and released to groundwater, soil or surface water, and the ground energy is a "cold source" at this time.

In the existing soil-coupled heat exchanger, as shown in FIG. 1, the U-shaped heat exchange tube 101 is passed into the energy storage well 102, and the fluid in the heat exchange tube 101 exchanges heat with the water in the energy storage well. It is only for heat exchange with groundwater, without heat radiation and energy storage functions.

SUMMARY OF THE INVENTION

In view of the above-mentioned problems, the purpose of the present invention is to provide a kind of graphene-enhanced radiation energy storage device and method with good radiation capability and increased energy storage capacity.

The technical scheme for realizing the present invention is as follows

The object of the present invention is to provide a graphene-enhanced radiation energy storage device, comprising an energy storage well, a soil coupler is arranged in the energy storage well, the soil coupler is arranged along the depth direction of the energy storage well, and the soil coupler has a supply for In the fluid channel in which the fluid flows, at least one coupling portion extending outward is fixedly arranged on the outer periphery of the soil coupler, and the coupling portion or/and the soil coupler have a graphene heat-conducting layer.

In this solution, a plurality of the coupling parts are provided, the plurality of coupling parts are distributed at intervals on the outer periphery of the soil coupler, and at least one heat exchange tube is arranged between adjacent coupling parts.

In this solution, the coupling portion is arranged along the axial direction of the outer periphery of the soil coupler.

In this solution, the coupling portion is arranged in a spiral shape along the outer circumference of the soil coupler.

In this solution, the coupling portion is a wave-shaped or straight sheet-shaped radiation plate.

In this solution, convective heat transfer is formed between the outside and the inside of the energy storage well in a woolen circulation manner.

Using this scheme, a soil coupler is added to the energy storage well to inject external heat or cold energy into it; by adding a coupling part on the outer periphery of the soil coupler, and adding a graphene heat-conducting layer to the soil coupler and the coupling part, the soil coupler is accelerated. The efficiency and power of the energy inside the energy radiated into the storage well. The energy (heat, cold) radiated by the graphene soil coupler is stored in the energy storage well, and several heat exchange tubes are evenly arranged in the energy storage well, and energy can be extracted through the heat exchange tubes. This solution strengthens the radiation energy storage and heat exchange power of the soil coupler through graphene materials, and realizes fast, low-cost, and large-capacity storage of energy.

The second object of the present invention is to provide a graphene-enhanced radiation energy storage method, which injects thermal energy or cold energy into the soil coupler in the energy storage well, and the energy in the soil coupler passes through the soil coupler body and the graphite on the soil coupler body. The olefinic thermal layer conducts radiation energy storage into the energy storage well.

The energy in the soil coupler is radiated and diffused into the energy storage well through the coupling part on the outer periphery of the soil coupler, and the coupling part has a graphene heat conduction layer.

This scheme strengthens the radiation heat transfer power of the soil coupler by adding graphene material to the soil coupler and the outer peripheral coupling part of the soil coupler, thereby enhancing the radiation energy storage capability of the soil coupler. The thermal conductivity of the traditional soil coupler is not higher than 0.4W/(m·k), and the radiation heat exchange power is small (the heat exchange power is between 15w/m-80w/m). The thermal conductivity of the graphene soil coupler The coefficient reaches 0.79W/(m·k), and the radiation heat transfer power is greatly improved (the heat transfer power reaches 300w/m).

Description of drawings

Fig. 1 is the schematic diagram of the existing soil coupler;

Fig. 2 is the top view structure schematic diagram of the present invention;

Fig. 3 is the side view structure schematic diagram of the present invention;

FIG. 4 is a top-view structural schematic diagram of another embodiment of the present invention;

In the drawings, 1 is an energy storage well, 2 is a graphene soil coupler, 3 is a fluid channel, 4 is a graphene coupling portion, and 5 is a heat exchange tube.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Referring to Figures 2 and 3, a graphene-enhanced radiation energy storage device includes an energy storage well 1, and soil is filled inside and outside the energy storage well. The water level potential energy field, so that the water outside the energy storage well can enter the energy storage well in the form of wool circulation through the microchannels in the soil to form convective heat transfer, as shown by the arrows on both sides in Figure 3. path.

A graphene soil coupler 2 is arranged in the energy storage well 1. The graphene soil coupler is arranged along the depth direction of the energy storage well, that is, it is arranged from the top to the bottom of the energy storage well. The fluid channel 3, at least one graphene coupling portion 4 extending outward is fixedly arranged on the periphery of the graphene soil coupler, a heat exchange tube 5 is arranged between the energy storage well and the graphene soil coupler, and in the graphene soil coupler, a heat exchange tube 5 is arranged. The fluid channel of the Graphene soil coupler is fed into the fluid (cold energy or heat energy is injected into the graphene soil coupler), and the thermal energy of the fluid is radiated outward through the graphene soil coupler body and the graphene coupling part. By adding the coupling part and the coupling part or/ And the graphene heat-conducting layer on the soil coupler makes the radiation faster and can radiate in a wider range. Compared with the soil coupler under the same area, the thermal radiation capacity and energy storage capacity (the radiation range is wider, the energy storage capacity is wider) Increase) is improved, breaking through the barriers of traditional soil couplers with high thermal resistance, low power, and wide area; the soil coupler is a hollow tubular heat exchange body, and the graphene thermal conductive layer covers the inner surface of the heat exchange body Or/and the outer surface; also, a graphene thermal conductive layer is plated on the surface of the coupling part. This structure only needs to add a soil coupler, a coupling part, and a graphene heat-conducting layer, and the investment cost is low.

In implementation, a plurality of graphene coupling parts 4 are provided. As shown in FIG. 2 , four graphene coupling parts 4 are used, and the four graphene coupling parts are evenly distributed on the outer periphery of the graphene soil coupler at equal intervals. The number of graphene coupling parts is appropriately increased or decreased according to needs; the fluid energy (cold energy or heat energy) in the graphene soil coupler is quickly transferred to the energy storage well through the graphene soil coupler body and the graphene coupling part For radiation, the radiation range is wide, the radiation speed is fast, and the radiation uniformity is good. A heat exchange tube 5 is arranged between adjacent graphene coupling parts 4, and a fluid is passed into the heat exchange tube to exchange the heat in the energy storage well for use. A graphene layer is added to the outer wall of the heat exchange tube to improve the heat exchange efficiency.

In implementation, the graphene coupling portion 4 is arranged along the axial direction of the outer periphery of the graphene soil coupler, that is, the graphene coupling portion is arranged in a vertical direction with the outer wall of the graphene soil coupler, as shown in FIG. 2 of the present application. this arrangement. Of course, in order to obtain a larger radiation area, the graphene coupling portion can be arranged in a spiral shape along the outer circumference of the graphene soil coupler.

In implementation, the graphene coupling portion 4 is a straight radiating plate/fin, and the fin is selected from a metal material with high thermal conductivity, such as the structure shown in FIG. 2 of the present application. Of course, in order to obtain a larger radiation area, the graphene coupling portion 4 may adopt a wave-shaped radiation plate. As shown in FIG. 4 , the graphene coupling portion is in an undulating wave shape.

In the method of graphene-enhanced radiation energy storage, thermal energy or cold energy is injected into the soil coupler in the energy storage well, and the energy in the soil coupler passes through the soil coupler body and the graphene heat-conducting layer on the soil coupler body to the energy storage well. Radiation energy storage is performed; the energy in the soil coupler is further radiated and diffused into the energy storage well through the coupling part on the outer periphery of the soil coupler, and the coupling part has a graphene heat conduction layer. The present application is a method for improving the heat exchange power of the soil coupler by changing the thermal conductivity of the U-shaped tube of the traditional soil coupler, or by changing the heat exchange area of the traditional U-shaped tube. By using the graphene soil coupler and the graphene coupling part, the thermal conductivity of the graphene soil coupler reaches 0.79W/(m·k), and the radiation heat exchange power is greatly improved (the heat exchange power reaches 300w/m). The radiation and energy storage power in the energy storage wells are enhanced by graphene materials to realize fast, low-cost, and large-capacity storage of cold and heat resources, breaking through the barriers of traditional soil couplers, such as large heat resistance, low power, and wide area. .

The heat exchange tube 5 in the radiation energy storage strengthening device is made of graphene material, the heat exchange tube is placed on the outer periphery of the soil coupler 2, and the outer cylinder wall of the soil coupler and its heat transfer fins 4 are compounded with graphene material to strengthen the The heat exchange power of the soil coupler enhances the heat storage and heat release capacity of the soil coupler. In the energy storage well, the energy (heat, cold) radiated by the graphene soil coupler is stored in the energy storage well, and several heat exchange tubes are evenly arranged in the energy storage well, and the energy can be extracted through the heat exchange tubes. The invention strengthens the radiation energy storage and heat exchange power of the soil coupler through the graphene material, and realizes the fast, low-cost and large-capacity storage of energy.

Claims (10)

1. a device for strengthening radiation energy storage of graphene, comprising an energy storage well, it is characterized in that, a soil coupler is provided in the energy storage well, and the soil coupler is arranged along the depth direction of the energy storage well, and the soil coupler has a In the fluid channel for fluid circulation, at least one coupling portion extending outward is fixedly arranged on the outer periphery of the soil coupler, and the coupling portion or/and the soil coupler have a graphene heat-conducting layer. 2. a kind of graphene-enhanced radiation energy storage device as claimed in claim 1, is characterized in that, described coupling part is provided with a plurality of, and a plurality of coupling parts are distributed in the outer periphery of soil coupler at intervals, and adjacent coupling parts At least one heat exchange tube is arranged between them. 3 . The graphene-enhanced radiation energy storage device according to claim 1 , wherein the coupling portion is arranged along the axial direction of the outer periphery of the soil coupler. 4 . 4 . The graphene-enhanced radiation energy storage device according to claim 1 , wherein the coupling portion is arranged in a spiral shape along the outer periphery of the soil coupler. 5 . 5 . The graphene-enhanced radiation energy storage device according to claim 1 , wherein the coupling portion is a wave-shaped or straight-sheet radiation plate. 6 . 6. The device of a kind of graphene-enhanced radiation energy storage according to any one of claims 1-5, characterized in that, convective heat transfer is formed between the outside and the inside of the energy storage well in a woolen cycle mode. 7. a method for strengthening radiation energy storage of graphene, is characterized in that, inject thermal energy or cold energy into the soil coupler in the energy storage well, and the energy in the soil coupler passes through the soil coupler body and the soil coupler body. The graphene thermal conductive layer conducts radiation energy storage into the energy storage well. 8. the method for strengthening radiation energy storage of a kind of graphene as claimed in claim 7 is characterized in that, the energy in the soil coupler is radiated to the energy storage well by the coupling part of the outer periphery of the soil coupler, and the coupling part has graphene Thermal layer. 9 . The method for strengthening radiative energy storage of graphene according to claim 8 , wherein the thermal conductivity of the soil coupler reaches 0.79W/(m·k). 10 . 10 . The method for strengthening radiation energy storage of graphene according to claim 8 , wherein the heat exchange power of the soil coupler reaches 300w/m. 11 .

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