Energy supply system of ecological house

Abstract

The invention discloses an ecological house energy supply system which comprises an ecological house and a circulating pipeline, a plurality of light gathering devices used for gathering sunlight are laid on the roof of the ecological house, and a heat storage unit is arranged underground the ecological house. The heat storage unit comprises a heat storage device and a light guide device, the heat storage device internally comprises a PCM capsule used for storing heat, and the light condensation device is connected with the light guide device. The invention provides an energy supply system of an ecological house, which can gather sunlight in the daytime, directly store the sunlight, store heat in batches, and transfer heat energy in a heat storage unit into the ecological house by using a circulating pipeline at night to supply heat to the ecological house.

Description

Technical Field

[0001] This invention relates to the field of energy technology for eco-houses, and in particular to an energy supply system for eco-houses. Background Technology

[0002] Eco-houses, as a low-energy-consumption and high-self-sufficiency building form, are gradually developing their energy supply systems towards renewable energy integration. Currently, mainstream eco-house energy systems generally adopt a technical approach of "photovoltaic power generation + electrochemical energy storage + electrothermal conversion": during the day, photovoltaic modules installed on the roof or in the courtyard directly convert solar energy into DC power, which is then converted by an inverter for household use. Excess electricity is stored in electrochemical energy storage devices such as lithium-ion batteries. In winter nights or rainy weather, the system converts the stored electricity into heat energy through electric heating equipment (such as electric boilers, electric heating films, or heat pump-assisted electric heating) for indoor heating or domestic hot water supply.

[0003] However, in long-term practical operation, the system has exposed several significant technical bottlenecks and energy efficiency defects: the energy conversion chain is too long, resulting in low overall energy efficiency. Solar energy needs to undergo four energy form conversions: "light → electricity → chemical energy (battery) → electricity → heat," each step accompanied by irreversible losses. Among them, the photovoltaic conversion efficiency is usually only 15%–22%, the lithium battery charge-discharge efficiency is about 85%–90%, and although the electrothermal conversion is close to 100%, the overall system's terminal efficiency from solar radiation to effective heat energy is often less than 12%, resulting in a large amount of renewable energy wastage.

[0004] Therefore, there is an urgent need for a new type of eco-house energy supply system that can bypass the intermediate link of electricity and directly and efficiently capture and store solar energy in the form of heat energy across time periods, thereby breaking through the energy efficiency and reliability bottlenecks of the existing "photovoltaic-cell-electric heating" model. Summary of the Invention

[0005] This invention addresses the shortcomings of existing technologies by providing an energy supply system for eco-friendly houses.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an energy supply system for an eco-house, comprising an eco-house and a circulation pipeline. The roof of the eco-house is equipped with multiple solar concentrators to gather sunlight, and a thermal storage unit is located underground. The thermal storage unit includes a thermal storage device and a light guiding device. The thermal storage device contains a PCM capsule for heat storage, and the solar concentrator is connected to the light guiding device to concentrate sunlight onto the thermal storage device, thereby heating it. The circulation pipeline includes a heat exchange pipe disposed within the thermal storage device and an indoor pipe disposed on the floor and / or walls of the eco-house. The two are connected by the pipeline, allowing liquid to circulate within the circulation pipeline, enabling heat exchange between the thermal storage device and the eco-house.

[0007] The beneficial effect is that during the day, when the sun shines, it can concentrate the sunlight to heat the PCM capsules in the heat storage device to store heat. At night, the circulation pipes are opened, and the heat in the heat storage device is used to supply heat to the eco-house, thereby improving the utilization rate of green energy.

[0008] In the above scheme, preferably, the light-concentrating device includes a light-concentrating box, a second optical fiber component is disposed at the bottom of the light-concentrating box, a convex lens is disposed above the second optical fiber component to concentrate light within the second optical fiber component, and a plurality of first optical fiber components are disposed on the upper surface of the light-concentrating box to vertically guide external sunlight and illuminate the convex lens.

[0009] In the above scheme, preferably, the heat storage device includes a heat storage block, and a heat-conducting ring is disposed in the middle of the heat storage block to conduct heat to each corner of the heat storage block. Multiple heat storage blocks are disposed. The light guide device is used to irradiate the heat-conducting ring with the sunlight gathered by the light-concentrating device to heat the heat storage block.

[0010] In the above scheme, preferably, the thermal storage device further includes an outer cover for protecting the thermal storage blocks. The multiple thermal storage blocks are all arranged inside the outer cover to isolate the thermal storage blocks from the underground soil. The upper end of the outer cover is provided with a protective pipe, which extends upward and connects to the floor of the eco-house.

[0011] In the above scheme, preferably, the light guiding device includes a first guide tube fixedly configured on the upper end of the protective tube and a second guide tube elastically guided and slidably configured on the first guide tube, and the second guide tube can be moved up and down by configuring a pull rope and a winding device. A light guide component is configured at the lower end of the second guide tube, and one end of the second optical fiber component on the light focusing device is configured on the through hole of the first guide tube. The light guide component is used to reflect the sunlight in the second optical fiber component onto the heat conducting ring.

[0012] In the above scheme, preferably, the light guide is rotatably disposed at the lower end of the second pipe, and a driving device is also disposed at the lower end of the second pipe. The driving device is used to drive the light guide to rotate, thereby enabling the reflected sunlight to circulate and irradiate the entire heat conduction ring.

[0013] In the above scheme, preferably, the heat storage block is equipped with a heat exchange pipe that communicates with the circulation pipe, and a switch valve is also provided at the connection point to control the heat exchange pipes in different heat storage blocks to be connected to the circulation pipe.

[0014] In the above scheme, preferably, the heat storage block is also equipped with multiple heat-conducting blocks, and the heat-conducting blocks extend to the outside of the outer cover. The outer cover is equipped with a geothermal device for contacting the heat-conducting blocks, so that the heat storage block can achieve heat interaction with the surrounding soil layer.

[0015] In the above scheme, preferably, the geothermal device includes a heat-conducting kit with one end fixed to the outer cover and covering the heat-conducting block. A contact block is elastically slidably disposed inside the heat-conducting kit. The contact block elastically abuts against the heat-conducting block, thereby allowing the heat storage block to interact with the surrounding soil layer.

[0016] In the above scheme, preferably, the geothermal device further includes a power device for controlling the sliding of the contact block back and forth, wherein the contact block moves and disengages from the heat-conducting block, and the heat storage block stops exchanging heat with the surrounding soil layer.

[0017] The beneficial effects of the present invention are: the present invention provides an energy supply system for an eco-house, which can collect and store the sunlight during the day and store the heat in batches. At night, the heat energy in the heat storage unit is transferred to the eco-house through circulation pipes to provide heat to the eco-house. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the eco-house of the present invention.

[0019] Figure 2 A schematic diagram of the eco-house and heat storage unit of this invention.

[0020] Figure 3 Cross-sectional view of the thermal storage unit of this invention.

[0021] Figure 4 A schematic diagram of the internal structure of the thermal storage unit of this invention.

[0022] Figure 5 Schematic diagram of the heat storage block and light guide of the present invention.

[0023] Figure 6 Schematic diagram of the second conduit and light guide of the present invention.

[0024] Figure 7 Cross-sectional view of the light-concentrating device of the present invention. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: Example 1:

[0026] See Figures 1-7 An energy supply system for an eco-house includes an eco-house 1, a heat storage unit 2, and a circulation pipe 3. A light-concentrating device 11 is evenly arranged on the roof of the eco-house 1 to concentrate the sunlight shining on it into a high-heat beam.

[0027] The focusing device 11 includes a focusing box 111, a first optical fiber 114, a second optical fiber 113, and a convex lens 112. The focusing box 111 has a protective cover on its upper surface, and evenly spaced vertical holes on its upper surface. The second optical fiber 113 is disposed within each hole, and its upper surface is flush with the upper plane of the focusing box 111. A small convex lens is positioned on the upper end of the second optical fiber 113, allowing light beams incident obliquely on the small convex lens to also be guided into the second optical fiber 113. Lens 112 is located below the second optical fiber 113, and the second optical fiber 113 is perpendicular to the convex lens 112. The light beam introduced through the second optical fiber 113 is perpendicularly covered on the convex lens 112, and thus the light beams introduced by multiple second optical fiber 113 are focused after passing through the convex lens 112. A first optical fiber 114 is arranged below the convex lens 112, and the upper end of the first optical fiber 114 is located at the focal point of the convex lens 112, so the light beam focused by the convex lens 112 enters the first optical fiber 114.

[0028] The heat storage unit 2 is located underground in the eco-house 1. It includes a heat storage device 21 and a light guide device 22. The heat storage device 21 includes an outer cover 211 and a heat storage block 212. The heat storage block 212 is fixedly arranged inside the outer cover 211. The heat storage unit 2 is buried underground, so the heat storage block 212 is isolated from the underground soil by the outer cover 211.

[0029] A protective tube 2111 is disposed at the center of the upper end of the outer cover 211. The outer cover 211 extends upward to the ground through the protective tube 2111, and then the upper end is set on the floor of the eco-house 1. The protective tube 2111 is a hollow pipe that communicates with the inner cavity of the outer cover 211.

[0030] Multiple heat storage blocks 212 are configured, each with a heat-conducting ring 2121 in the center. The heat-conducting ring 2121 is a circular design, with the axis of the ring aligned with the axis of the protective pipe 2111. Each heat storage block 212 is filled with PCM capsules. The PCM capsules melt and store heat when heated, and solidify after releasing heat. The circulation pipe 3 includes heat exchange pipes and indoor pipes. Each heat storage block 212 is equipped with a heat exchange pipe, and each heat exchange pipe in each heat storage block 212 is equipped with a switch valve at its port to control which heat storage block 212 is connected to the circulation pipe 3 for heat exchange.

[0031] The circulation pipe 3 is equipped with a circulation pump, which causes the liquid in the circulation pipe 3 to circulate.

[0032] The light guiding device 22 includes a first conduit 221, a second conduit 222, and a light guide 223. The upper end of the first conduit 221 is fixedly disposed on the upper inner diameter of the protective tube 2111, while the second conduit 222 is guided and slidably disposed on the first conduit 221. A first elastic member 225 is sleeved on the first conduit 221. The two ends of the first elastic member 225 respectively abut against the limiting member on the outer wall of the first conduit 221 and the limiting member on the outer wall of the second conduit 222, so that the second conduit 222 has a downward elastic force in the initial state.

[0033] The first optical fiber 114 on the focusing device 11 enters the first pipe 221 from the upper opening of the first pipe 221, and a fixing plate is arranged at the lower end of the first pipe 221. The other ends of all the first optical fibers 114 are evenly fixedly inserted on the fixing plate, so that the light beam focused and injected from the upper end of the first optical fiber 114 is emitted from the lower end of the first pipe 221 and shines downward into the second pipe 222.

[0034] One end of the first pull rope 226 is connected to the second pipe 222, and the other end extends upward through the hole in the side wall of the first pipe 221 and is arranged on the roller 227 located inside the eco-house 1. There are two first pull ropes 226 symmetrically arranged, and the other end of each rope is wound around the roller 227. The roller 227 rotates by winding the two first pull ropes 226, thereby pulling the second pipe 222 upward.

[0035] A light guide 223 is rotatably arranged at the lower end of the second pipe 222. One end of the light guide 223 is connected to the second pipe 222, and the other end faces the heat conduction ring 2121 of the heat storage block 212. A reflector is arranged at the bend position. The light beam emitted from the second pipe 222 is reflected by the reflector and then shines on the heat conduction ring 2121, thereby heating the heat conduction ring 2121.

[0036] A first gear 2231 is fixedly disposed on the light guide 223, and a second gear 2221 is rotatably disposed at the lower end of the second pipe 222. A servo motor is also connected to the second gear 2221 to control the rotation of the second gear 2221. The second gear 2221 is meshed with the first gear 2231. Therefore, the rotation of the second gear 2221 drives the entire light guide 223 to rotate. During the rotation of the light guide 223, the reflected light beam rotates and irradiates the heat conduction ring 2121.

[0037] Multiple temperature sensors are evenly arranged on the heat-conducting ring 2121. The servo motor adjusts its speed according to the highest temperature detected by the temperature sensors. When the highest temperature is high, the servo motor rotates faster, and the rotation speed of the light guide 223 also increases accordingly. This shortens the time that the reflected light beam stays at various positions on the heat-conducting ring 2121, thereby avoiding the problem of excessive heat concentration causing the PCM capsule to be unable to absorb quickly.

[0038] Its working principle or usage method is as follows: Initially, the light guide 223 is aligned with the heat-conducting ring 2121 on the lowest heat storage block 212. At this time, sunlight is gathered and enters the light guide 223. After being reflected by the reflector inside the light guide 223, the focused beam of light is directed towards the heat-conducting ring 2121. At this time, the temperature sensor identifies the highest temperature, and then the servo motor adapts its rotation speed according to the highest temperature, thereby causing the light guide 223 to rotate. The focused beam of light moves on the heat-conducting ring 2121 as the light guide 223 rotates, thereby causing the PCM capsule inside the heat storage block 212 to absorb heat evenly.

[0039] A temperature sensor is also installed inside the heat storage block 212. After the internal temperature reaches the set temperature, the roller 227 rotates and pulls the second pipe 222 upward, so that the light guide 223 is aligned with the next heat conduction ring 2121, thereby heating multiple heat storage blocks 212 in sequence, so that the heat storage blocks 22 can be charged in sequence during the day.

[0040] At night, when the surface temperature drops and the temperature inside the eco-house 1 falls below the set temperature, the circulation pump on the circulation pipe 3 starts to work, thereby causing the liquid in the circulation pipe 3 to flow. The liquid is heated after flowing through the heat storage block 212, and releases heat after reaching the eco-house 1, thereby regulating the ambient temperature inside the eco-house 1.

[0041] Each heat exchange pipe on the heat storage block 212 is opened individually. After the temperature of a heat storage block 212 drops to the set temperature, the heat exchange pipe on that heat storage block 212 is closed, and the heat exchange pipe on the next heat storage block 212 is opened.

[0042] Example 2:

[0043] See Figures 1-7 This embodiment makes the following further improvements based on embodiment 1: the heat storage unit 2 also includes a geothermal device 213, which is used to enable the heat storage block 212 to exchange heat with the external soil.

[0044] The geothermal device 213 includes a heat-conducting kit 2131 and a contact block 2132 that is elastically slidably disposed within the heat-conducting kit 2131. A plurality of heat-conducting blocks 2122 are evenly disposed on the outer peripheral wall of the heat storage block 212. The heat-conducting blocks 2122 are connected to the heat-conducting elements inside the heat storage block 212 to rapidly transfer temperature. The heat-conducting blocks 2122 extend outward from the outer cover 211, and the heat-conducting kit 2131 is fixedly disposed on the outer wall of the outer cover 211 and sleeved on the heat-conducting blocks 2122. Thus, the heat-conducting kit 2131 wraps the heat-conducting blocks 2122. When buried underground, the heat-conducting blocks 2122 do not contact the soil, while the heat-conducting kit 2131 directly contacts the soil.

[0045] The contact block 2132 is elastically guided and slidably disposed within the heat-conducting kit 2131. Under the action of elastic force, the front end of the contact block 2132 can press against the temperature-conducting block 2122. Through the conduction of the contact block 2132, the temperature-conducting block 2122 and the heat-conducting kit 2131 achieve temperature conduction.

[0046] The geothermal device 213 is also equipped with a power device for controlling the back-and-forth sliding of the contact block 2132. The power device can be an air cushion, that is, an air cushion is arranged in the middle of the end face of the temperature-conducting block 2122. When the air cushion is inflated, the temperature-conducting block 2122 and the contact block 2132 are separated by the air cushion, thus losing the ability to conduct temperature. After the air cushion is deflated, the contact block 2132 touches the temperature-conducting block 2122 under the action of elastic force, thus transferring temperature.

[0047] The power device can also be a zipper. One end of the zipper is connected to the rear end of the temperature-conducting block 2122, and the other end of the zipper is connected to the hydraulic push rod. Pulling the zipper can separate the temperature-conducting block 2122 from the contact block 2132, and releasing the zipper will make the temperature-conducting block 2122 contact the contact block 2132.

[0048] Its working principle or usage method is as follows: During the daytime, when heat storage is carried out, the temperature of the heat storage block 212 after heat storage is higher than the temperature of the surrounding soil. Therefore, the heat conduction block 2122 and the contact block 2132 are isolated, and the heat storage block 212 does not exchange heat with the surrounding soil.

[0049] During the day, after all the heat storage blocks 212 in the heat storage unit 2 have stored heat, the heat-conducting block 2122 on the circumference of the lowest heat storage block 212 comes into contact with the contact block 2132, transferring the temperature inside the heat storage block 212 to the surrounding soil, causing the soil temperature to rise and the temperature of the heat storage block 212 to drop. As a result, the heat storage block 212 can use the concentrated sunlight to supplement the heat again, and at the same time the surrounding soil temperature rises, so that it can better heat the eco-house 1 at night.

[0050] At night, when the temperature of the heat storage block 212 is lower than that of the surrounding soil after it is used, the heat conduction block 2122 comes into contact with the contact block 2132, and then uses the heat energy of the surrounding soil to supplement the heat storage block 212. At this time, the heat storage unit 2 provides heating to the eco-house by geothermal energy.

[0051] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An energy supply system for an eco-friendly house, characterized in that: Includes an eco-house (1) and a circulation pipe (3). The roof of the eco-house (1) is covered with multiple light-gathering devices (11) for gathering sunlight. The eco-house (1) is equipped with a heat storage unit (2) underground. The heat storage unit (2) includes a heat storage device (21) and a light guide device (22). The heat storage device (21) includes a PCM capsule for heat storage, and the light concentrator (11) is connected to the light guide device (22) to concentrate sunlight onto the heat storage device (21) to heat the heat storage device (21). The circulation pipe (3) includes a heat exchange pipe configured in the heat storage device (21) and an indoor pipe configured on the floor and / or walls of the eco-house (1). The two are connected by the pipe, so that the liquid can circulate in the circulation pipe (3) to enable the heat storage device (21) and the eco-house (1) to achieve heat and cold interaction.

2. The energy supply system for an eco-house according to claim 1, characterized in that: The light-concentrating device (11) includes a light-concentrating box (111), a second optical fiber component (113) is disposed at the bottom of the light-concentrating box (111), a convex lens (112) for concentrating light into the second optical fiber component (113) is disposed above the second optical fiber component (113), and a plurality of first optical fiber components (114) for vertically guiding external sunlight into the convex lens (112) are also disposed on the upper surface of the light-concentrating box (111).

3. The energy supply system for an eco-house according to claim 2, characterized in that: The heat storage device (21) includes a heat storage block (212), and a heat-conducting ring (2121) is arranged in the middle of the heat storage block (212) to conduct heat to each corner of the heat storage block (212). The heat storage block (212) is configured with multiple rings. The light guide device (22) is used to irradiate the sunlight gathered by the light-concentrating device (11) onto the heat-conducting ring (2121) to heat the heat storage block (212).

4. The energy supply system for an eco-house according to claim 3, characterized in that: The heat storage device (21) also includes an outer cover (211) for protecting the heat storage blocks (212). The multiple heat storage blocks (212) are all arranged inside the outer cover (211) to isolate the heat storage blocks (212) from the underground soil. The upper end of the outer cover (211) is provided with a protective pipe (2111), which extends upward and connects to the floor of the eco-house (11).

5. The energy supply system for an eco-house according to claim 3, characterized in that: The light guiding device (22) includes a first conduit (221) fixedly disposed on the upper end of the protective tube (2111) and a second conduit (222) elastically guided and slidably disposed on the first conduit (221). The second conduit (222) can move up and down by means of a pull rope and a winding device. A light guide (223) is disposed at the lower end of the second conduit (222). One end of the second optical fiber (113) on the light focusing device (11) is disposed on the through hole of the first conduit (222). The light guide (223) is used to reflect the sunlight in the second optical fiber (113) onto the heat-conducting ring (2121).

6. The energy supply system for an eco-house according to claim 5, characterized in that: The light guide (223) is rotatably disposed at the lower end of the second pipe (222), and a driving device (224) is also disposed at the lower end of the second pipe (222). The driving device (224) is used to drive the light guide (223) to rotate, thereby enabling the reflected sunlight to irradiate the entire heat conduction ring (2121) in a cyclic rotation.

7. The energy supply system for an eco-house according to claim 3, characterized in that: The heat storage block (212) is equipped with a heat exchange pipe that communicates with the circulation pipe (3), and a switch valve is also provided at the connection point to control the heat exchange pipes in different heat storage blocks (212) to be connected to the circulation pipe (3).

8. The energy supply system for an eco-house according to claim 3, characterized in that: The heat storage block (212) is also equipped with a plurality of heat-conducting blocks (2122), and the heat-conducting blocks (2122) extend to the outside of the outer cover (211). The outer cover (211) is equipped with a geothermal device (213) for contacting the heat-conducting blocks (2122), thereby enabling the heat storage block (212) to interact with the surrounding soil layer.

9. The energy supply system for an eco-house according to claim 8, characterized in that: The geothermal device (213) includes a heat-conducting kit (2131) with one end fixed to the outer cover (211) and covering the heat-conducting block (2122). A contact block (2132) is elastically slidably disposed inside the heat-conducting kit (2131). The contact block (2132) elastically abuts against the heat-conducting block (2122), thereby allowing the heat storage block (212) to interact with the surrounding soil layer.

10. The energy supply system for an eco-house according to claim 9, characterized in that: The geothermal device (213) also includes a power device for controlling the sliding of the contact block (2132) back and forth. When the contact block (2132) moves and disengages from the heat-conducting block (2122), the heat storage block (212) stops interacting with the surrounding soil.

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