Solar heat cycle device

Abstract

The utility model discloses a solar thermal cycle device, which relates to the technical field of solar devices and comprises a support frame, a solar thermal collector is arranged at the top end of the support frame, a main oil way is transversely arranged on the left side of the solar thermal collector, and an oil supplementing component capable of reducing thermal loss is arranged above the main oil way. According to the solar thermal cycle device, the oil storage tank, the oil supplementing hole, the first thin pipe, the U-shaped thin pipe and the second thin pipe are arranged, when the solar thermal cycle device is used, heat conduction oil is injected along the oil supplementing hole in the top of the oil storage tank, the U-shaped pipe formed by the first thin pipe, the U-shaped thin pipe and the second thin pipe can guide the oil into a main oil way, the pipe diameter of the U-shaped pipe is small, and heat conduction oil can be supplemented; the heat conduction oil can be prevented from flowing back into the oil storage tank, gas can be prevented from entering the oil storage tank, convection is avoided, the heat conduction oil is prevented from flowing back into the oil storage tank, the functions of supplementing oil and reducing heat loss are achieved, and the problems that the device is low in starting speed and large in heat loss are solved.

Description

Technical Field

[0001] This utility model relates to the field of solar energy device technology, specifically a solar thermal cycle device. Background Technology

[0002] Solar thermal cycle uses solar thermal radiation to heat the room, and then uses an oil pump to drive heat transfer oil to circulate along the pipeline. Heat exchange occurs through an indoor heat exchanger, which can quickly warm the indoor environment in winter and is relatively energy-saving and environmentally friendly.

[0003] Currently, common solar thermal cycle systems on the market add heat transfer oil to the storage tank (to replenish the heat transfer oil lost due to evaporation). However, the heat transfer oil in the storage tank undergoes convection during heating, which affects the heat collection effect. Furthermore, the heat transfer process heats up all the heat transfer oil in the storage tank, leading to significant heat loss. In addition, there are issues with long start-up times, indicating room for improvement.

[0004] Now, a novel solar thermal cycle device is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a solar thermal cycle device to solve the problems of high heat loss and long start-up time mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a solar thermal circulation device, including a support frame, a solar collector at the top of the support frame, a main oil circuit at the outlet of the solar collector, a third loop pipe connecting the inlet of the solar collector to the oil pump, a heat exchanger at the left side of the oil pump, a first loop pipe fixedly connected to the top of the left side of the heat exchanger, a tee connector fixedly connected between the left side of the main oil circuit and the top of the first loop pipe, a second loop pipe fixedly connected between the bottom of the right side of the heat exchanger and the left side of the oil pump, an expansion tank above the tee connector, a thick pipe welded to the bottom of the expansion tank, an exhaust port at the left side of the top of the expansion tank, and an oil replenishment component connected to the main oil circuit to reduce heat loss;

[0007] The oil replenishment assembly includes an oil storage tank, which is located above the main oil circuit. An oil replenishment hole is provided on the top of the oil storage tank. A first thin tube is welded to the bottom of the oil storage tank, and a second thin tube is located below the main oil circuit and connected to the main oil circuit. A U-shaped thin tube is connected between the bottom ends of the first thin tube and the second thin tube.

[0008] As a further technical solution of this utility model, the first thin tube, the U-shaped thin tube, and the second thin tube have the same diameter, and the interiors of the first thin tube, the U-shaped thin tube, and the second thin tube are connected.

[0009] As a further technical solution of this utility model, the top end of the second thin tube is connected to the bottom end of the main oil circuit, and the main oil circuit and the interior of the second thin tube are connected.

[0010] As a further technical solution of this utility model, the bottom of the oil storage tank is higher than the top of the main oil circuit, and the diameter ratio of the main oil circuit to the U-shaped thin tube is (4-5):1.

[0011] As a further technical solution of this utility model, the liquid level inside the oil storage tank and the thick pipe is the same, the liquid level inside the thick pipe is higher than the top of the solar collector; and the liquid level inside the thick pipe is lower than the bottom of the expansion tank.

[0012] As a further technical solution of this utility model, the thick pipe is connected to the tee connector, and the diameter ratio of the U-shaped thin pipe to the thick pipe is 1:(8-12).

[0013] As a further technical solution of this utility model, an oil inlet is provided at the bottom of the front end of the solar collector, and a first flexible hose is movably connected between the front end of the oil inlet and the right side of the third circuit pipe. An oil outlet is provided at the top of the front end of the solar collector, and a second flexible hose is movably connected between the front end of the oil outlet and the right side of the main oil circuit. A first hinge seat is fixedly connected to the front and rear ends of the top right side of the support frame, a second hinge seat is fixedly connected to the front and rear ends of the top left side of the support frame, and a third hinge seat is fixedly connected to the front and rear ends of the left side of the solar collector. An oil cylinder is movably connected between the second and third hinge seats.

[0014] As a further technical solution of this utility model, the top end of the first hinge seat and the bottom end of the left side of the solar collector are movably connected, and the diameters of the first hose and the second hose are the same.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the solar thermal cycle device not only achieves rapid start-up, but also reduces heat loss;

[0016] (1) By setting up an oil storage tank, an oil replenishment hole, a first thin tube, a U-shaped thin tube and a second thin tube, when in use, the heat transfer oil is heated by the solar collector and enters the heat exchanger along the main oil circuit and the first circuit pipe to exchange heat with the room. At the same time, driven by the oil pump, it flows back to the solar collector and circulates repeatedly. When it is necessary to replenish the heat transfer oil, the heat transfer oil is injected along the oil replenishment hole at the top of the oil storage tank. The U-shaped tube composed of the first thin tube, the U-shaped thin tube and the second thin tube can guide the oil into the main oil circuit. The U-shaped tube has a small diameter, which can replenish the heat transfer oil, prevent gas from entering the oil storage tank, and prevent convection. It also prevents the heat transfer oil from flowing back into the oil storage tank, thus realizing the function of replenishing oil and reducing heat loss.

[0017] (2) By setting up an expansion tank, an exhaust port and a thick pipe, when in use, as the elevation angle or east-west movement of the solar collector changes, some parts of the pipe will accumulate the gas that evaporates when the heat transfer oil is heated. When a certain amount is reached, the oil and gas will enter the thick pipe together under the push of the oil pump and be sprayed into the expansion tank. The gas is discharged from the exhaust port at the top of the expansion tank, and the settled heat transfer oil flows back into the circulation system, thus realizing the function of easy exhaust.

[0018] (3) By setting up an oil inlet, a first hose, an oil outlet, a second hose, a first hinge seat, a second hinge seat, a third hinge seat, and an oil cylinder, when in use, the solar collector is used to heat the heat transfer oil. The heated heat transfer oil enters the main oil circuit along the oil outlet and the second hose. The heat transfer oil that has undergone heat exchange flows back into the solar collector along the first hose and the oil inlet. According to the solar altitude, the elevation angle of the solar collector can be adjusted. When the oil cylinder between the second hinge seat and the third hinge seat retracts, the elevation angle of the solar collector decreases. When the oil cylinder extends, the elevation angle of the solar collector increases, thus realizing the function of adjustable collector angle. Attached Figure Description

[0019] Figure 1 This is a front view structural diagram of the present utility model;

[0020] Figure 2 This is an enlarged structural schematic diagram of the front cross-section of the oil storage tank of this utility model;

[0021] Figure 3 This is an enlarged structural schematic diagram of the front cross-section of the expansion tank of this utility model;

[0022] Figure 4 This is a front view enlarged structural schematic diagram of the solar collector of this utility model.

[0023] In the diagram: 1. Support frame; 2. Solar collector; 3. Main oil circuit; 4. Oil storage tank; 5. Oil replenishment hole; 6. First thin tube; 7. U-shaped thin tube; 8. Second thin tube; 9. Expansion tank; 10. Vent; 11. Thick tube; 12. T-joint; 13. First loop pipe; 14. Heat exchanger; 15. Second loop pipe; 16. Oil pump; 17. Third loop pipe; 18. Oil inlet; 19. First hose; 20. Oil outlet; 21. Second hose; 22. First hinge seat; 23. Second hinge seat; 24. Third hinge seat; 25. Oil cylinder. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example: Please refer to Figure 1-4 A solar thermal circulation device includes a support frame 1, a solar collector 2 is mounted on the top of the support frame 1, the outlet of the solar collector 2 is connected to a main oil circuit 3, the inlet of the solar collector 2 is connected to an oil pump 16 by a third loop pipe 17, a heat exchanger 14 is mounted on the left side of the oil pump 16, a first loop pipe 13 is fixedly connected to the top left side of the heat exchanger 14, a three-way connector 12 is fixedly connected between the left side of the main oil circuit 3 and the top of the first loop pipe 13, a second loop pipe 15 is fixedly connected between the bottom right side of the heat exchanger 14 and the left side of the oil pump 16, an expansion tank 9 is mounted above the three-way connector 12, a thick pipe 11 is welded to the bottom of the expansion tank 9, an exhaust port 10 is mounted on the left side of the top of the expansion tank 9, and an oil replenishment component that can reduce heat loss is connected to the main oil circuit 3.

[0026] Please see Figure 1-4 A solar thermal cycle device also includes an oil replenishment component, which includes an oil storage tank 4. The oil storage tank 4 is located above the main oil passage 3. An oil replenishment hole 5 is provided at the top of the oil storage tank 4. A first thin tube 6 is welded to the bottom of the oil storage tank 4. A second thin tube 8 is located below the main oil passage 3 and communicates with the main oil passage 3. A U-shaped thin tube 7 is connected between the bottom ends of the first thin tube 6 and the second thin tube 8.

[0027] The first capillary tube 6, the U-shaped capillary tube 7, and the second capillary tube 8 have the same diameter. The first capillary tube 6, the U-shaped capillary tube 7, and the second capillary tube 8 are internally connected. The top end of the second capillary tube 8 is connected to the bottom end of the main oil passage 3. The main oil passage 3 and the second capillary tube 8 are internally connected. The bottom end of the oil storage tank 4 is higher than the top end of the main oil passage 3. The diameter ratio of the main oil passage 3 and the U-shaped capillary tube 7 is (4-5):1, which facilitates oil replenishment while avoiding heat loss.

[0028] Specifically, such as Figure 1 and Figure 2 As shown, heat transfer oil is injected through the oil replenishment hole 5 at the top of the oil storage tank 4. The U-shaped tube, consisting of the first thin tube 6, the U-shaped thin tube 7, and the second thin tube 8, can guide the oil into the main oil circuit 3. The U-shaped tube has a small diameter, which can replenish the heat transfer oil, prevent gas from entering the oil storage tank 4, avoid convection, and prevent the heat transfer oil from flowing back into the oil storage tank 4.

[0029] An expansion tank 9 is installed above the three-way connector 12. A thick pipe 11 is welded to the middle of the bottom of the expansion tank 9. An exhaust port 10 is installed on the left side of the top of the expansion tank 9. The liquid level inside the oil storage tank 4 and the thick pipe 11 is the same. The liquid level inside the thick pipe 11 is higher than the top of the solar collector 2. The liquid level inside the thick pipe 11 is lower than the bottom of the expansion tank 9. The thick pipe 11 is connected to the three-way connector 12. The diameter ratio of the U-shaped thin pipe 7 to the thick pipe 11 is 1:(8-12) to facilitate venting.

[0030] Specifically, such as Figure 1 and Figure 3 As shown, the gas, driven by the oil pump 16, enters the coarse pipe 11 along with the oil and is sprayed into the expansion tank 9. The gas is discharged from the exhaust port 10 at the top of the expansion tank 9, and the settled heat transfer oil flows back into the circulation system.

[0031] An oil inlet 18 is provided at the bottom of the front end of the solar collector 2. A first flexible hose 19 is movably connected between the front end of the oil inlet 18 and the right side of the third circuit pipe 17. An oil outlet 20 is provided at the top of the front end of the solar collector 2. A second flexible hose 21 is movably connected between the front end of the oil outlet 20 and the right side of the main oil circuit 3. A first hinge seat 22 is fixedly connected to the front and rear ends of the top right side of the support frame 1. A second hinge seat 23 is fixedly connected to the front and rear ends of the top left side of the support frame 1. A third hinge seat 24 is fixedly connected to the front and rear ends of the left side of the solar collector 2. An oil cylinder 25 is movably connected between the second hinge seat 23 and the third hinge seat 24. The top end of the first hinge seat 22 is movably connected to the bottom end of the left side of the solar collector 2. The first flexible hose 19 and the second flexible hose 21 have the same diameter, which facilitates the adjustment of the collector's elevation angle.

[0032] Specifically, such as Figure 1 and Figure 4 As shown, when the hydraulic cylinder 25 between the second hinge seat 23 and the third hinge seat 24 retracts, the elevation angle of the solar collector 2 decreases; when the hydraulic cylinder 25 extends, the elevation angle of the solar collector 2 increases.

[0033] Working principle: When this utility model is in use, firstly, the heat transfer oil is heated by the solar collector 2, and then enters the heat exchanger 14 along the main oil circuit 3 and the first loop pipe 13 to exchange heat with the room. At the same time, driven by the oil pump 16, it flows back to the solar collector 2, and the cycle repeats. When it is necessary to replenish the heat transfer oil, the heat transfer oil is injected through the oil replenishment hole 5 at the top of the oil storage tank 4. The U-shaped pipe formed by the first thin pipe 6, the U-shaped thin pipe 7 and the second thin pipe 8 can guide the oil into the main oil circuit 3. The U-shaped pipe has a small diameter, which can replenish the heat transfer oil, prevent gas from entering the oil storage tank 4, and also prevent convection, thus preventing the heat transfer oil from flowing back into the oil storage tank 4. The solar collector 2 is used to heat the heat transfer oil. The heated heat transfer oil enters the main oil circuit 3 through the oil outlet 20 and the second hose 21. After heat exchange, the heat transfer oil flows back into the solar collector 2 through the first hose 19 and the oil inlet 18. The elevation angle of the solar collector 2 can be adjusted according to the solar altitude. When the cylinder 25 between the second hinge seat 23 and the third hinge seat 24 retracts, the elevation angle of the solar collector 2 decreases. When the cylinder 25 extends, the elevation angle of the solar collector 2 increases. As the elevation angle or east-west movement of the solar collector 2 changes, gas evaporated from the heated heat transfer oil will accumulate in certain parts of the pipeline. When a certain amount is reached, the gas will enter the coarse pipe 11 along with the oil under the push of the oil pump 16 and be sprayed into the expansion tank 9. The gas is discharged from the exhaust port 10 at the top of the expansion tank 9, and the settled heat transfer oil flows back into the circulation system.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A solar heat cycle device comprising a support frame (1), characterized in that: A solar collector (2) is installed at the top of the support frame (1). The outlet of the solar collector (2) is connected to the main oil circuit (3). The inlet of the solar collector (2) is connected to the oil pump (16) by a third loop pipe (17). A heat exchanger (14) is installed on the left side of the oil pump (16). A first loop pipe (13) is fixedly connected to the top of the left side of the heat exchanger (14). A three-way connector (12) is fixedly connected between the left side of the main oil circuit (3) and the top of the first loop pipe (13). A second loop pipe (15) is fixedly connected between the bottom right side of the heat exchanger (14) and the left side of the oil pump (16). An expansion tank (9) is installed above the three-way connector (12). A thick pipe (11) is welded to the bottom of the expansion tank (9). An exhaust hole (10) is installed on the left side of the top of the expansion tank (9). An oil replenishment component that can reduce heat loss is connected to the main oil circuit (3). The oil replenishment assembly includes an oil storage tank (4), which is located above the main oil passage (3). An oil replenishment hole (5) is provided on the top of the oil storage tank (4). A first thin tube (6) is welded to the bottom of the oil storage tank (4), and a second thin tube (8) is located below the main oil passage (3) and connected to the main oil passage (3). A U-shaped thin tube (7) is connected between the bottom ends of the first thin tube (6) and the second thin tube (8).

2. A solar heat cycle device according to claim 1, wherein: The first capillary tube (6), the U-shaped capillary tube (7), and the second capillary tube (8) have the same diameter, and the interiors of the first capillary tube (6), the U-shaped capillary tube (7), and the second capillary tube (8) are connected.

3. A solar heat cycle device according to claim 1, wherein: The top end of the second thin tube (8) is connected to the bottom end of the main oil passage (3), and the main oil passage (3) and the second thin tube (8) are internally connected.

4. The solar heat cycle device of claim 1, wherein: The bottom of the oil storage tank (4) is higher than the top of the main oil circuit (3), and the diameter ratio of the main oil circuit (3) to the U-shaped thin tube (7) is 4-5:

1.

5. The solar heat cycle device of claim 1, wherein: The liquid levels inside the oil storage tank (4) and the thick pipe (11) are the same. The liquid level inside the thick pipe (11) is higher than the top of the solar collector (2). The liquid level inside the thick pipe (11) is lower than the bottom of the expansion tank (9).

6. The solar heat cycle apparatus according to claim 1, wherein: The thick pipe (11) is connected to the tee connector (12), and the diameter ratio of the U-shaped thin pipe (7) to the thick pipe (11) is 1:8-12.

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