Photovoltaic heat energy efficient conversion device and method

Abstract

The invention relates to the technical field of photovoltaic heat production, in particular to a photovoltaic heat energy efficient conversion device and method.The photovoltaic heat energy efficient conversion device comprises a heat conduction plate, a solar panel is arranged in the center of the top of the heat conduction plate, and a heat conduction pipe surrounding the solar panel is arranged in the heat conduction plate; the water tank is arranged below the heat conducting plate; the water stop plate is arranged in the water tank and can slide along the inner wall of the water tank, the interior of the water tank is divided into a first water storage cavity and a second water storage cavity by the water stop plate, and the first water storage cavity is arranged above the second water storage cavity; the water inlet end of the water conveying assembly communicates with the first water storage cavity, the water outlet end of the water conveying assembly communicates with the first end of the heat conduction pipe, and the second end of the heat conduction pipe communicates with the second water storage cavity. When the water tank is used, the interior of the water tank is divided into two independent spaces by the water separation plate, cold water in the first water storage cavity enters the heat conduction pipe to be heated and then enters the second water storage cavity, hot water and the cold water cannot be mixed, and the temperature of the hot water cannot be reduced.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic heat generation technology, specifically to a photovoltaic thermal energy high-efficiency conversion device and method. Background Technology

[0002] During photovoltaic (PV) power generation, solar panels absorb solar radiation, converting only a portion of the light energy into electrical energy, while the remaining energy is converted into heat and accumulated within the module. A temperature gradient exists within the module, and the heat is transferred to the surrounding frame via thermal conduction through the encapsulation materials and backsheet. Therefore, it is essential to utilize the heat generated by the solar panels. For example, Chinese invention patent application number CN202022680966.8 provides a mechanism for converting and utilizing the heat energy generated by photovoltaic power generation. In use, water is added to a water tank through an inlet pipe. A water pump draws the water from the tank into a flexible retractable hose on the left side through a first connecting pipe, and then into a fixed pipe. The water in the fixed pipe absorbs heat from the frame, thus converting the heat energy and heating the water. The hot water finally enters a second connecting pipe and returns to the water tank, and can be discharged through an outlet pipe.

[0003] The drawback of this device is that the water tank is a single, monolithic space. Therefore, when hot water returns to the water tank, it mixes with the cold water that was already in the tank, resulting in the temperature of the hot water discharged through the outlet pipe being lower than the temperature of the hot water entering the second connecting pipe. Summary of the Invention

[0004] The purpose of this invention is to provide a photovoltaic thermal energy high-efficiency conversion device and method. The water separator divides the interior of the water tank into two independent spaces. After the cold water in the first water storage chamber is heated by the heat pipe, it enters the second water storage chamber. The hot water and cold water will not mix, and the temperature of the hot water will not decrease.

[0005] To achieve the above objectives, the present invention provides the following technical solution: In the first technical solution, a photovoltaic thermal energy high-efficiency conversion device includes: a heat-conducting plate, wherein a solar panel is disposed at the top center of the heat-conducting plate, and a heat-conducting pipe is disposed inside the heat-conducting plate surrounding the solar panel; a water tank disposed below the heat-conducting plate; a water-separating plate disposed inside the water tank and capable of sliding along the inner wall of the water tank, the water-separating plate dividing the interior of the water tank into a first water storage chamber and a second water storage chamber, the first water storage chamber being disposed above the second water storage chamber; and a water conveying assembly, wherein the inlet end of the water conveying assembly is connected to the first water storage chamber, the outlet end of the water conveying assembly is connected to the first end of the heat-conducting pipe, and the second end of the heat-conducting pipe is connected to the second water storage chamber.

[0006] In the first technical solution, preferably, a support plate is provided on one side of the water tank, and the heat-conducting plate is provided on the top of the support plate, with a gap between it and the top surface of the water tank.

[0007] In the first technical solution, preferably, an air storage chamber is provided inside the water tank and on the side away from the support plate, and the bottom of the air storage chamber is connected to the second water storage chamber.

[0008] In the first technical solution, preferably, the air storage chamber is provided with an identification component, the identification component including: an air-blocking rod, which can slide along the inner wall of the air storage chamber; a first support rod, fixedly disposed on the top surface of the air-blocking rod, the side wall of the first support rod having scale lines, the top surface of the water tank having a first through hole, the first through hole being located directly above the first support rod; and a second support rod, fixedly disposed on the top surface of the air-blocking rod, the side wall of the second support rod having several venting grooves, the top surface of the water tank having a second through hole, the second through hole being located directly above the second support rod.

[0009] In the first technical solution, preferably, an air guiding chamber is provided below the air storage chamber, and the air storage chamber and the air guiding chamber are connected through an air supply channel. The width of the air supply channel is smaller than the width of the air storage chamber. The bottom surface of the water-blocking plate is provided with a groove. The depth of the first end of the groove is smaller than the depth of the second end. The second end of the groove is located near the air guiding chamber and penetrates the side wall of the water-blocking plate.

[0010] In the first technical solution, preferably, the air guide cavity is inclined, and the top inner wall of the air guide cavity on the side away from the water-blocking plate is provided with an arc-shaped surface.

[0011] In the first technical solution, preferably, the first end of the heat-conducting plate is hinged to the support plate, and an adjustment component is provided between the heat-conducting plate and the water tank, with the output end of the adjustment component connected to the second end of the heat-conducting plate.

[0012] In the second technical solution, a method for using a photovoltaic thermal energy high-efficiency conversion device, employing the photovoltaic thermal energy high-efficiency conversion device as described in the first technical solution, includes the following steps: Step 1: Filling the first water storage chamber with water; Step 2: The solar panel operates to generate electricity. When the heat generated by the solar panel is transferred to the heat-conducting pipe through the heat-conducting plate, the water conveying component operates, pumping the water in the first water storage chamber into the heat-conducting pipe. The water in the heat-conducting pipe absorbs heat and enters the second water storage chamber; Step 3: Air in the second water storage chamber enters the air storage chamber and pushes the air-blocking rod upward. The air above the air-blocking rod passes through the first through hole and the... The second through hole drains to the outside of the water tank, and the hot water in the second water storage chamber drives the baffle plate to move upward; Step 4: When the top of the first support rod moves to the outside of the water tank through the first through hole, the operator reads the value corresponding to the exposed scale line to determine the position of the baffle plate. When the top of the second support rod moves to the outside of the water tank through the second through hole, the air above the air-sealing rod is discharged to the outside of the water tank through the venting groove; Step 5: When the value corresponding to the exposed scale line reaches the maximum value, the water supply component stops working, the operator drains the hot water in the second water storage chamber, and refills the first water storage chamber with water.

[0013] Compared with the prior art, the beneficial effects of the present invention are: (i) When the present invention is used, the water baffle separates the interior of the water tank into two independent spaces. After the cold water in the first water storage chamber is heated in the heat conduction pipe, it will enter the second water storage chamber. The hot water and cold water will not mix, and the temperature of the hot water will not decrease.

[0014] (ii) In this invention, the water tank is further provided with an air storage chamber, and an air-blocking rod is provided inside the air storage chamber. When hot water in the heat pipe enters the second water storage chamber, the air in the second water storage chamber, after entering the air storage chamber, can push the air-blocking rod up, causing the air-blocking rod to move continuously upward. When the hot water in the second water storage chamber is drained, the marking component moves downward under gravity, pressing the air in the air storage chamber back into the second water storage chamber. Attached Figure Description

[0015] Figure 1 This is an isometric view of the present invention; Figure 2 A front sectional view of the present invention after the first water storage chamber has been filled with water; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a front sectional view of the invention after water from the heat pipe enters the second water storage chamber. Figure 5This is an isometric view of the heat-conducting plate in this invention; Figure 6 This is an isometric sectional view of the heat-conducting plate in this invention; Figure 7 This is an isometric view of the water tank in this invention; Figure 8 This is a side sectional view of the water tank in this invention; Figure 9 This is an isometric view of the water-blocking plate in this invention; Figure 10 This is an isometric view of the water conveyance component in this invention; Figure 11 This is an isometric view of the support plate in this invention; Figure 12 This is an isometric view of the identification component in this invention; Figure 13 for Figure 12 Enlarged view of point B in the middle; Figure 14 This is an isometric view of the positioning component in this invention.

[0016] The reference numerals in the figures include: 1-Heat-conducting plate, 2-Solar panel, 3-Heat-conducting pipe, 4-Water tank, 41-First water storage chamber, 42-Second water storage chamber, 43-Air storage chamber, 44-First through hole, 45-Second through hole, 46-Air guiding chamber, 461-Arc-shaped surface, 47-Air supply channel, 48-Grate plate, 49-Water inlet pipe, 410-Drainage pipe, 5-Water-separating plate, 51-Groove, 6-Water supply component, 61-Water pump, 62-First rigid pipe, 63-First flexible pipe, 64-Second flexible pipe, 65-Second rigid pipe, 7-Support plate, 8-Identification component, 81-Air-separating rod, 82-First support rod, 821-Scale line, 83-Second support rod, 831-Exhaust trough, 9-Adjustment component, 91-Electric telescopic rod, 92-Slider, 93-Adjustment rod. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example 1

[0019] Please see Figure 1-14This invention provides a technical solution: a high-efficiency photovoltaic thermal energy conversion device, comprising a heat-conducting plate 1, a solar panel 2, a heat-conducting pipe 3, a water tank 4, a water-insulating plate 5, and a water conveying assembly 6. The water-insulating plate 5 divides the interior of the water tank 4 into a first water storage chamber 41 and a second water storage chamber 42. In use, the first water storage chamber 41 is first filled with water, at which point its volume is larger than that of the second water storage chamber 42. Next, sunlight shines on the solar panel 2, which converts solar energy into electrical energy to generate electricity and transfers heat to the heat-conducting plate 1. The heat-conducting plate 1 then transfers the heat to the heat-conducting pipe 3. At this time, the water conveying assembly 6 operates, pumping the water in the first water storage chamber 41 into the heat-conducting pipe 3. The water in the heat-conducting pipe 3 absorbs heat and becomes hot water, cooling both the heat-conducting plate 1 and the heat-conducting pipe 3. The hot water in the heat-conducting pipe 3 then enters the second water storage chamber 42 for collection. As the amount of cold water in the first water storage chamber 41 gradually decreases and the amount of hot water in the second water storage chamber 42 gradually increases, the baffle plate 5 will gradually move upward, and the volume of the second water storage chamber 42 will gradually become larger than the volume of the first water storage chamber 41. The baffle plate 5 is made of heat-insulating material, so the first water storage chamber 41 and the second water storage chamber 42 are two independent spaces, and heat will not be transferred between them. Hot and cold water will not mix, and the temperature of the hot water will not decrease.

[0020] Please see Figure 1-8 and Figure 10-11 The water supply assembly 6 includes a water pump 61, a first rigid pipe 62, a first flexible pipe 63, a second flexible pipe 64, and a second rigid pipe 65. When the water pump 61 is working, it can pump the cool water in the first water storage chamber 41 into the first rigid pipe 62. Then, the cool water enters the heat-conducting pipe 3 through the first flexible pipe 63. After absorbing heat and turning into hot water, the cool water enters the second rigid pipe 65 through the second flexible pipe 64 and finally enters the second water storage chamber 42 for collection. The inner top and inner bottom surfaces of the water tank 4 are provided with grating plates 48, and the outer side wall of the water tank 4 is provided with a water inlet pipe 49 and a drain pipe 410. When the water baffle 5 is located at the bottom of the water tank 4, the grating plate 48 can prevent the water baffle 5 from sticking to the inner bottom surface of the water tank 4. When the water baffle 5 is located at the top of the water tank 4, the grating plate 48 can prevent the water baffle 5 from colliding with the water pump 61. Both the inlet pipe 49 and the drain pipe 410 are equipped with valves at their tops. Cold water can be injected into the first water storage chamber 41 through the inlet pipe 49, and hot water can be drained from the second water storage chamber 42 through the drain pipe 410. A support plate 7 is provided on one side of the water tank 4. The first rigid pipe 62 and the second rigid pipe 65 are both fixedly installed inside the support plate 7, thereby enhancing the stability of the water supply assembly 6.

[0021] Example 2

[0022] Based on Example 1, please refer to Figure 1-4 and Figure 7-8The water tank 4 also has an air storage chamber 43 inside. When the hot water in the heat pipe 3 enters the second water storage chamber 42, the air in the second water storage chamber 42 will automatically enter the air storage chamber 43. Therefore, the second water storage chamber 42 can also be filled with water, and when the hot water in the second water storage chamber 42 is drained, the air in the air storage chamber 43 can automatically return to the second water storage chamber 42.

[0023] Please see Figure 1-4 , Figure 7-8 and Figure 12-13 An indicator component 8 is provided inside the air storage chamber 43. The indicator component 8 includes an air-blocking rod 81. The top surface of the water tank 4 has a first through hole 44 and a second through hole 45. When hot water in the heat pipe 3 enters the second water storage chamber 42, the air in the second water storage chamber 42 enters the air storage chamber 43 and pushes the air-blocking rod 81 upward, causing the air-blocking rod 81 to move continuously upward. The air above the air-blocking rod 81 can be discharged to the outside of the water tank 4 through the first through hole 44 and the second through hole 45. After all the air in the second water storage chamber 42 has entered the air storage chamber 43, the hot water in the second water storage chamber 42 will also enter the air storage chamber 43. When the hot water in the second water storage chamber 42 is drained, the indicator component 8 moves downward under gravity, pressing the air in the air storage chamber 43 back into the second water storage chamber 42.

[0024] Please see Figure 1-4 , Figure 7-8 and Figure 12-13The marking component 8 also includes a first support rod 82 and a second support rod 83, both of which are fixedly mounted on the top surface of the air-blocking rod 81. The number of the first support rod 82 and the second support rod 83 can be increased or decreased as needed. In this embodiment, there are two first support rods 82 and nine second support rods 83. The number of the first through holes 44 and the second through holes 45 matches the number of the first support rods 82 and the second support rod 83. The air-blocking rod 81, the first support rod 82, and the second support rod 83 are all hollow, thus reducing the overall weight of the marking component 8. Since hot water also enters the air-storage chamber 43, when the water-blocking plate 5 moves upward, the first support rod 82 and the second support rod 83 can move upward along with the air-blocking rod 81. The first support rod 82 can pass through the first through hole 44, and the second support rod 83 can pass through the second through hole 45. The side wall of the first support rod 82 is provided with scale lines 821, and the side wall of the second support rod 83 is provided with several venting grooves 831. The operator can determine the position of the baffle plate 5 by observing and reading the vertical line corresponding to the exposed scale line 821. Since the first support rod 82 can completely block the first through hole 44, the air in the air storage chamber 43 can be discharged to the outside of the water tank 4 through several exhaust channels 831 as the air baffle rod 81 moves upward. When the baffle plate 5 moves to the top of the water tank 4 and contacts the top grid plate 48, the top surface of the air baffle rod 81 contacts the inner top surface of the air storage chamber 43, and the value corresponding to the exposed scale line 821 on the first support rod 82 reaches its maximum value. At this time, the water supply component 6 stops working, the operator drains the hot water in the second water storage chamber 42, and refills the first water storage chamber 41 with water.

[0025] Please see Figure 1-9 Below the air storage chamber 43, there is an air guide chamber 46, which is connected to the air guide chamber 46 via an air supply channel 47. The width of the air supply channel 47 is smaller than the width of the air storage chamber 43, so the air baffle rod 81 will not fall into the air guide chamber 46. The bottom surface of the water baffle plate 5 has a groove 51 with varying depths, so the air in the second water storage chamber 42 will first enter the groove 51, then directly enter the air guide chamber 46 along the inner top surface of the groove 51, and then enter the air storage chamber 43 through the air supply channel 47. The air guide chamber 46 is inclined to ensure that the air in the air guide chamber 46 can continuously enter the air supply channel 47, and hot water can also continuously enter the air supply channel 47 through the air guide chamber 46. An arc-shaped surface 461 is provided on the top inner wall of the air guide cavity 46 on the side away from the water baffle plate 5. When hot water enters the air guide cavity 46, the air in the air guide cavity 46 can quickly enter the air delivery channel 47 along the arc-shaped surface 461, avoiding the continuous stagnation of air in the air guide cavity 46 and hindering the entry of hot water.

[0026] Example 3

[0027] Based on Example 1, please refer to Figure 1-9 , Figure 11 and Figure 14 The first end of the heat-conducting plate 1 is hinged to the support plate 7, and an adjustment assembly 9 is provided between the heat-conducting plate 1 and the water tank 4. The adjustment assembly 9 includes an electric telescopic rod 91, a slider 92, and an adjustment rod 93. The electric telescopic rod 91 is fixedly mounted on the side wall of the support plate 7, and its output end is connected to the slider 92, which can slide along the top surface of the water tank 4. The two ends of the adjustment rod 93 are hinged to the slider 92 and the second end of the heat-conducting plate 1, respectively. When the position of the sun changes, the electric telescopic rod 91 can move the slider 92 forward or backward by extending and shortening its output end, which in turn drives the heat-conducting plate 1 and the solar panel 2 to rotate together through the adjustment rod 93, so that the solar panel 2 receives more sunlight.

[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A photovoltaic-thermal high efficiency conversion device, characterized in that, The utility model provides a solar energy water heating system, which comprises the following components: a heat-conducting plate, a top center of the heat-conducting plate is provided with a solar panel, an inside of the heat-conducting plate is provided with a heat-conducting pipe arranged around the solar panel; a water tank, the water tank is arranged below the heat-conducting plate; a water-proof plate, the water-proof plate is arranged in the inside of the water tank and can slide along an inner wall of the water tank, the water-proof plate divides the inside of the water tank into a first water storage cavity and a second water storage cavity, the first water storage cavity is arranged above the second water storage cavity; a water delivery assembly, a water inlet end of the water delivery assembly is communicated with the first water storage cavity, a water outlet end of the water delivery assembly is communicated with a first end of the heat-conducting pipe, a second end of the heat-conducting pipe is communicated with the second water storage cavity.

2. The photovoltaic thermal energy high efficiency conversion device of claim 1, wherein, One side of the water tank is provided with a support plate, the heat-conducting plate is arranged on the top of the support plate, and there is a gap between the heat-conducting plate and a top surface of the water tank.

3. The photovoltaic thermal energy high efficiency conversion device of claim 2, wherein, An air storage cavity is arranged in the inside of the water tank and away from the support plate, a bottom of the air storage cavity is communicated with the second water storage cavity.

4. The photovoltaic thermal energy high efficiency conversion device of claim 3, wherein, The inside of the air storage cavity is provided with an identification assembly, the identification assembly comprises: an air isolation rod, the air isolation rod can slide along an inner wall of the air storage cavity; a first supporting rod, the first supporting rod is fixedly arranged on a top surface of the air isolation rod, a side wall of the first supporting rod is provided with a scale line, a top surface of the water tank is provided with a first through hole, the first through hole is located directly above the first supporting rod; a second supporting rod, the second supporting rod is fixedly arranged on the top surface of the air isolation rod, a side wall of the second supporting rod is provided with a plurality of air exhaust grooves, the top surface of the water tank is provided with a second through hole, the second through hole is located directly above the second supporting rod.

5. The photovoltaic thermal energy high efficiency conversion device of claim 3, wherein, A gas guide cavity is arranged below the air storage cavity, the air storage cavity and the gas guide cavity are communicated through a gas delivery channel, a width of the gas delivery channel is smaller than a width of the air storage cavity, a bottom surface of the water-proof plate is provided with a groove, a depth of a first end of the groove is smaller than a depth of a second end of the groove, the second end of the groove is arranged on a side close to the gas guide cavity and penetrates a side wall of the water-proof plate.

6. The photovoltaic thermal energy high efficiency conversion device of claim 5, wherein, The gas guide cavity is arranged obliquely, an arc surface is arranged on a top inner wall of a side of the gas guide cavity away from the water-proof plate.

7. The photovoltaic thermal energy high efficiency conversion device of claim 2, wherein, A first end of the heat-conducting plate is hinged to the support plate, a position adjusting assembly is arranged between the heat-conducting plate and the water tank, an output end of the position adjusting assembly is connected to a second end of the heat-conducting plate.

8. A method of using a photovoltaic thermal energy high efficiency conversion device, using the photovoltaic thermal energy high efficiency conversion device as claimed in claim 4, characterized in that, The utility model provides a solar energy water heating system, which comprises the following components: Step one, fill the first water storage cavity with water; Step two, the solar panel works to generate electricity, when the heat generated by the solar panel is transmitted to the heat-conducting pipe through the heat-conducting plate, the water delivery assembly works to pump the water in the first water storage cavity into the heat-conducting pipe, the water in the heat-conducting pipe absorbs heat and enters the second water storage cavity; Step three, the air in the second water storage cavity enters the air storage cavity and pushes the air isolation rod to move upwards, the air above the air isolation rod is exhausted to the outside of the water tank through the first through hole and the second through hole, and the hot water in the second water storage cavity drives the water-proof plate to move upwards; Step four, when the top of the first support rod moves to the outside of the water tank through the first through hole, the operator reads the value corresponding to the exposed scale line to determine the position of the baffle plate. When the top of the second support rod moves to the outside of the water tank through the second through hole, the air above the air baffle is discharged to the outside of the water tank through the air discharge groove. Step five, when the value corresponding to the exposed scale line reaches the maximum value, the water delivery assembly stops working, and the operator discharges the hot water in the second water storage cavity and refills the first water storage cavity with water.

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