Double-tube wiring solar heat collection device

Abstract

The utility model provides a double-tube wiring solar heat collection device which comprises a solar energy conversion device, a buffer solution tank, a heat storage tank and a heating tube, the solar energy conversion device comprises a solar energy silicon crystal tube and a first circulating pump, and the solar energy silicon crystal tube is filled with circulating heat conduction liquid; the first circulating pump is installed at the position, close to the buffer solution tank, of the solar silicon crystal tube, the solar silicon crystal tube comprises a heat collection section and a water return section, one end of the heat collection section is installed in the buffer solution tank, and the end, away from the buffer solution tank, of the heat collection section is fixedly connected with the end, away from the buffer solution tank, of the water return section. The heat removal area and the heat conduction path are obviously increased through the double-strip-pipe wiring structure, and compared with traditional single-strip-pipe wiring, the heat transmission efficiency is improved. Solar heat can be transferred to circulating liquid more quickly and fully, the heat collecting capacity of the solar silicon crystal tube is greatly enhanced, and the utilization efficiency of solar energy is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to solar heat utilization technical field, concretely relates to a double -pipe wiring solar heat collection device. BACKGROUND

[0002] In the existing solar heat utilization system, solar silicon tube as the key heat collection component mostly adopts single tube wiring mode. This traditional wiring form has a series of obvious defects. On the one hand, the heat transfer efficiency is greatly limited, the heat collection potential of solar silicon tube cannot be fully played, leading to that solar heat cannot be efficiently collected and transferred. On the other hand, the heat exchange process is not sufficient enough, causing energy waste. In addition, the stability of the whole circulating system is poor, and the pressure and flow of circulating liquid are prone to fluctuation. Frequent pressure impact not only affects the normal operation of the system, but also shortens the service life of related equipment and increases the maintenance cost. Therefore, it is urgent to improve the heat extraction wiring structure of solar silicon tube and introduce effective circulating liquid stabilizing measures to improve the overall performance of the solar heat utilization system. SUMMARY

[0003] The utility model discloses a double -pipe wiring solar heat collection device, including solar conversion device, buffer liquid tank, heat storage tank and heating pipe, the solar conversion device is used to convert solar energy into heat energy, the solar conversion device includes solar silicon tube and first circulating pump, the solar silicon tube is filled with circulating heat conducting liquid, the first circulating pump is installed in solar silicon tube near the position of buffer liquid tank, the solar silicon tube includes heat collection section and backwater section, one end of heat collection section is installed in buffer liquid tank, the one end of heat collection section away from buffer liquid tank is fixedly connected with the one end of backwater section away from buffer liquid tank, the heat collection section includes circulating liquid buffer, L type heat collection pipe and N type heat collection pipe, L type heat collection pipe and N type heat collection pipe are fixedly connected through circulating liquid buffer, L type heat collection pipe and N type heat collection pipe constitute double -pipe wiring structure, circulating liquid buffer is integrally injection molded, two connecting holes are set up on circulating liquid buffer, and two connecting holes are internally communicated.

[0004] The buffer liquid tank is filled with buffer liquid, one end of the solar conversion device is arranged in the buffer liquid tank, the buffer liquid tank and the heat storage tank are connected through the heating pipe, the solar conversion device converts solar energy into heat energy and transfers to the buffer liquid tank, and the heating pipe transfers the heat energy in the buffer liquid tank to the heat storage tank.

[0005] The two L-shaped heat collecting pipes are fixedly connected at two ends of the sequentially connected N-shaped heat collecting pipes.

[0006] The heating pipe comprises a water inlet pipe, a heat dissipation pipe and a water return pipe, the water inlet pipe is communicated with the buffer liquid tank and the heat storage tank, the second circulating pump is installed on the water inlet pipe, and the water return pipe is communicated with the buffer liquid tank and the heat storage tank.

[0007] The solar silicon tube is coated with a nano coating, and the thickness of the nano coating is 50-80 nm.

[0008] The working pressure of the first circulating pump and the second circulating pump is 0.3-0.35 MPa, and the flow rate is 20-25 L / min.

[0009] Compared with the prior art, the solar energy collecting device has the advantages that:

[0010] The heat transmission efficiency is greatly improved: the double-pipe wiring structure significantly increases the heat extraction area and the heat conduction path, and compared with the traditional single-pipe wiring, the heat transmission efficiency is improved.

[0011] The stability of the circulating system is improved: the application of the circulating liquid buffer effectively stabilizes the pressure and flow rate of the circulating system, reduces the start-stop frequency of the circulating pump, prolongs the service life of the circulating pump, the silicon tube and other related equipment.

[0012] The following will be further described with reference to the drawings and specific embodiments. DESCRIPTION OF DRAWINGS

[0013] ATTACHMENT Figure 1 It is a whole structure schematic view of a double-pipe wiring solar energy collecting device.

[0014] ATTACHMENT Figure 2 It is a structure schematic view of a solar silicon tube and a first circulating pump.

[0015] ATTACHMENT Figure 3 It is a structure schematic view of a heat storage tank, a water inlet pipe and a water return pipe.

[0016] ATTACHMENT Figure 4 It is a structure schematic view of a heating pipe.

[0017] Figure 2 is a structural schematic diagram of the heat collecting section of the utility model. Figure 5 Figure 2 is a structural schematic diagram of the heat collecting section of the utility model.

[0018] Figure 2 is a structural schematic diagram of the heat collecting section of the utility model. Figure 6 Figure 2 is a structural schematic diagram of the heat collecting section of the utility model. DETAILED DESCRIPTION

[0019] Figure 2 is a structural schematic diagram of the heat collecting section of the utility model. Figure 1 Figure 2 is a structural schematic diagram of the heat collecting section of the utility model. Figure 6 As shown in Figures 1 to 3, a kind of double-pipe wiring solar heat collecting device, including solar conversion device 1, buffer liquid tank 2, heat storage tank 3 and heating pipe 4, the solar conversion device 1 is used to convert solar energy into heat energy, the solar conversion device 1 includes solar silicon transistor 11 and first circulating pump 12, the solar silicon transistor 11 is filled with circulating heat conducting liquid, the first circulating pump 12 is installed in solar silicon transistor 11 near the position of buffer liquid tank 2, the solar silicon transistor 11 includes heat collecting section 111 and backwater section 112, one end of the heat collecting section 111 is installed in buffer liquid tank 2, the end of the heat collecting section 111 away from buffer liquid tank 2 is fixedly connected with the end of backwater section 112 away from buffer liquid tank 2.

[0020] The heat collecting section 111 includes circulating liquid buffer 1111, L-shaped heat collecting pipe 1112 and N-shaped heat collecting pipe 1113, the L-shaped heat collecting pipe 1112 and N-shaped heat collecting pipe 1113 are fixedly connected by circulating liquid buffer 1111, the L-shaped heat collecting pipe 1112 and N-shaped heat collecting pipe 1113 form double-pipe wiring structure, according to the heat collecting area requirement of solar water heater, the number of solar silicon transistor used is determined, and the heat collecting pipe is prefabricated according to L-shaped according to the standard spacing 20cm of silicon transistor 11, a total of 20 prefabricated; during prefabrication, the solar silicon transistor 11 is laid with nano coating, and the thickness of the nano coating is 50-80nm.

[0021] The L-shaped heat collecting pipe 1112 is inserted and welded with the circulating liquid buffer 1111 in left-right combination mode, argon arc welding process is used during welding to ensure that the welding seam is firm and has no false welding; after combination is completed, the connecting part is tested under pressure, the test pressure is 0.6MPa, the pressure is maintained for 30 minutes, and there is no leakage and deformation phenomenon.

[0022] The circulating liquid buffer 1111 is integrally injection molded, high-performance engineering materials are used, and the dimensional accuracy of each component is strictly controlled during manufacturing, two connecting holes are formed in the circulating liquid buffer 1111, and the two connecting holes are internally communicated.

[0023] The buffer tank 2 is filled with buffer solution, one end of the solar energy conversion device 1 is arranged in the buffer tank 2, the buffer tank 2 and the heat storage tank 3 are connected through the heating pipe 4, the solar energy conversion device 1 converts solar energy into heat energy and transmits to the buffer tank 2, and the heating pipe 4 transmits the heat energy in the buffer tank 2 to the heat storage tank 3.

[0024] The L-shaped heat collecting pipe 1112 is provided with two, the N-shaped heat collecting pipe 1113 is provided with a plurality of, and the circulating liquid buffer 1111 is provided with a plurality of, a plurality of N-shaped heat collecting pipes 1113 are connected in sequence through the circulating liquid buffer 1111, and the two L-shaped heat collecting pipes 1112 are respectively fixedly connected to two ends of the plurality of N-shaped heat collecting pipes 1113 connected in sequence.

[0025] The heating pipe 4 comprises a water inlet pipe 41, a heat dissipation pipe 42 and a water return pipe 43, the water inlet pipe 41 communicates the buffer tank 2 and the heat storage tank 3, the second circulating pump 411 is installed on the water inlet pipe 41, and the water return pipe 43 communicates the buffer tank 2 and the heat storage tank 3.

[0026] The working pressure of the first circulating pump 12 and the second circulating pump 411 is 0.3-0.35 MPa, and the flow rate is 20-25 L / min.

[0027] In use, the application injects a special ethylene glycol solution as circulating liquid into the whole circulating system, starts the first circulating pump 12 and the second circulating pump 411, and uses a pressure sensor and a flow sensor to monitor the system pressure and flow rate in real time, adjusts the rotating speed of the first circulating pump 12 and the second circulating pump 411, so that the system pressure is stabilized at 0.3-0.35 MPa, and the flow rate is stabilized at 20-25 L / min. An infrared thermal imager is used to test the heat extraction effect of the double-pipe wiring, the rotating speed of the first circulating pump 12 and the second circulating pump 411 and the system flow rate are fine-tuned and optimized according to the test result, and the system is ensured to reach the best operating state. Through actual operation test, the solar water heater adopting the technical scheme has significantly improved heat collecting efficiency and remarkable energy-saving effect compared with traditional products.

Claims

1. A dual pipe routed solar thermal collector, characterized by: The utility model provides a solar energy conversion device, buffer liquid tank, heat storage tank and heating pipe, the solar energy conversion device (1) is used for converting solar energy into heat energy, the solar energy conversion device (1) includes solar silicon transistor (11) and first circulating pump (12), the solar silicon transistor (11) is filled with circulating heat conducting liquid, the first circulating pump (12) is installed in solar silicon transistor (11) near buffer liquid tank (2) position, the solar silicon transistor (11) includes heat collection section (111) and backwater section (112), the heat collection section (111) one end is installed in buffer liquid tank (2), the heat collection section (111) away from buffer liquid tank (2) one end and backwater section (112) away from buffer liquid tank (2) one end fixed connection, the heat collection section (111) includes circulating liquid buffer (1111), L type heat collection pipe (1112) and N type heat collection pipe (1113), L type heat collection pipe (1112) and N type heat collection pipe (1113) are fixedly connected through circulating liquid buffer (1111), L type heat collection pipe (1112) and N type heat collection pipe (1113) constitute double pipe wiring structure, circulating liquid buffer (1111) is integrally injection molded, two connecting holes are formed in circulating liquid buffer (1111), and two connecting holes are communicated.

2. The dual pipe raceway solar collector system of claim 1, wherein: The buffer liquid tank (2) is filled with buffer liquid, one end of the solar energy conversion device (1) is arranged in the buffer liquid tank (2), the buffer liquid tank (2) and the heat storage tank (3) are connected through the heating pipe (4), the solar energy conversion device (1) converts solar energy into heat energy and transmits the heat energy into the buffer liquid tank (2), and the heating pipe (4) transmits the heat energy in the buffer liquid tank (2) into the heat storage tank (3).

3. The dual pipe raceway solar collector of claim 2, wherein: The L type heat collection pipe (1112) is provided with two, the N type heat collection pipe (1113) is provided with a plurality of, the circulating liquid buffer (1111) is provided with a plurality of, a plurality of N type heat collection pipes (1113) are connected in sequence through the circulating liquid buffer (1111), and two L type heat collection pipes (1112) are fixedly connected at two ends of the plurality of N type heat collection pipes (1113) connected in sequence.

4. The solar collector of claim 1 or 2, wherein: The heating pipe (4) includes an inlet pipe (41), a heat dissipation pipe (42) and a backwater pipe (43), the inlet pipe (41) is connected with the buffer liquid tank (2) and the heat storage tank (3), the second circulating pump (411) is installed on the inlet pipe (41), and the backwater pipe (43) is connected with the buffer liquid tank (2) and the heat storage tank (3).

5. A twin pipe raceway solar collector as claimed in claim 4 wherein: The solar silicon transistor (11) is coated with a nano coating, and the thickness of the nano coating is 50-80nm.

6. A twin pipe raceway solar collector as claimed in claim 5 wherein: The working pressure of the first circulating pump (12) and the second circulating pump (411) is 0.3-0.35MPa, and the flow rate is 20-25L / min.

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