CN220321633U - Anti-freezing solar water heating system with flat plate collector - Google Patents
Anti-freezing solar water heating system with flat plate collector Download PDFInfo
- Publication number
- CN220321633U CN220321633U CN202321538150.9U CN202321538150U CN220321633U CN 220321633 U CN220321633 U CN 220321633U CN 202321538150 U CN202321538150 U CN 202321538150U CN 220321633 U CN220321633 U CN 220321633U
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- Prior art keywords
- water
- flat plate
- water tank
- collector
- heat
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 190
- 238000010438 heat treatment Methods 0.000 title claims abstract description 18
- 238000007710 freezing Methods 0.000 title abstract description 6
- 238000006073 displacement reaction Methods 0.000 claims abstract description 17
- 230000002528 anti-freeze Effects 0.000 claims description 8
- 238000004321 preservation Methods 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 4
- 230000001502 supplementing effect Effects 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 230000005484 gravity Effects 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The utility model belongs to the technical field of solar water heaters, and particularly relates to an antifreezing solar water heating system with a flat plate collector. Comprising the following steps: the solar water heater comprises a water tank, a flat plate collector, a photovoltaic cell, a sensor, a controller, a water pump and a positive displacement water heater. An anti-freezing flat plate collector solar water heating system is characterized in that: the photovoltaic cell provides power for the controller and the water pump. The water tank is positioned at the lower part of the flat plate collector. The flat plate collectors are connected in series. The water tank is formed by assembling each water tank unit. The flat plate collector is directly filled with water. The heat exchange tube is positioned in the water tank, so that the functions of cold water inlet and hot water outlet can be realized. When the temperature sensed by the heat collection temperature sensor is higher than the temperature sensed by the water tank temperature sensor, the water pump is started to circulate water in the water tank to the flat plate heat collector for heating. After the water pump stops running, the water in the flat plate collector flows back to the water tank under the action of gravity. Has the antifreezing function in winter.
Description
Technical Field
The utility model belongs to the field of solar water heaters, and particularly relates to an antifreezing solar water heating system with a flat plate collector.
Background
Solar energy is increasingly being widely used as clean and perpetual energy. The solar heat collector can convert solar light energy into heat energy, is environment-friendly and energy-saving, and has become popular. The vacuum tube heat collector has good heat preservation performance, and is applied to solar engineering hot water in China. The flat plate collector is safer because of being toughened glass, and is more popular with users because of higher heat collecting efficiency. Because the heat preservation effect of the flat plate heat collector is poor, in order to prevent the flat plate heat collector from being frozen out, water cannot directly flow in the flat plate heat collector, most manufacturers adopt a mode of running antifreeze fluid in the flat plate heat collector and performing secondary heat exchange with water in a water tank, and the antifreeze problem is solved. Due to the adoption of the heat exchange structure and the reason that the antifreeze liquid needs to be replaced periodically, the solar water heating system of the flat plate collector is complex in structure, high in investment and maintenance cost and low in heat gain of the whole system. The popularization and the use of the flat plate collector in the solar water heating system are limited.
Disclosure of Invention
The utility model designs an anti-freezing solar water heating system with a flat plate collector, which aims to solve the anti-freezing problem of a flat plate solar water heater.
The utility model adopts the technical proposal for solving the technical problems in the prior art that:
an antifreezing solar water heating system with a flat plate collector. Comprising the following steps: the solar water heater comprises a water tank, a flat plate collector, a photovoltaic cell, a sensor, a controller, a water pump and a positive displacement water heater. An anti-freezing flat plate collector solar water heating system is characterized in that: the photovoltaic cell provides power for the water pump and the controller. The water tank is positioned at the lower part of the flat plate collector. The flat plate collectors are connected in series. The water tank is formed by assembling each water tank unit. The flat plate collector is directly filled with water. The heat exchange tube is positioned in the water tank, tap water is connected with the water inlet of the heat exchange tube, and after being heated by water in the water tank, the tap water enters the positive-displacement water heater through the water outlet of the heat exchange tube. When the temperature of the water in the positive-displacement water heater reaches the use requirement, the positive-displacement water heater can start a heating mode, so that the hot water requirement of a user is met.
The utility model has the advantages and positive effects that: the flat plate collector absorbs solar heat, when the temperature of the collector sensor is higher than that of the water tank sensor, the water pump is started to enable water in the water tank to enter the flat plate collector through the water tank circulating outlet, and then the water in the water tank is heated. When the temperature of the collector sensor is lower than the temperature of the water tank sensor, the water pump is stopped. After the water pump stops running, the water in the flat plate collector flows back to the water tank under the action of gravity. Has the antifreezing function in winter. When solar energy is irradiated, the controller controls the water pump to automatically operate. When no solar energy is irradiated, the controller controls the water pump to stop automatically.
Drawings
Fig. 1, 2, 3, 4 and 5 are schematic structural views of the present utility model.
FIG. 1 is a schematic diagram of an antifreeze flat panel collector solar water heating system;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a view of a flat panel collector with the glass cover plate and bead removed;
FIG. 4 is a cross-sectional view of a flat plate collector;
FIG. 5 is a block diagram of the water tank;
fig. 1, 2, 3, 4, and 5: 1. a collector support; 2. a water tank; 3. a water tank sensor; 4. Circulating the pipe; 5. a water pump; 6. the water tank sensor connecting wire; 7. A water pump connecting line; 8. a photovoltaic cell; 9. A photovoltaic cell support; 10. A water inlet of the positive displacement water heater; 11. A positive displacement water heater; 12. A hot water outlet of the positive displacement water heater; 13. A photovoltaic cell connecting line; 14. A controller; 15. A plug; 16. A thermal collector sensor connecting line; 17. a flat plate collector; 18. a heat collecting sensor; 19. a circulation outlet pipe; 20. pressing strips; 21. a glass cover plate; 22. a heat absorbing plate; 23. a metal runner; 24. a back plate; 25. the flat plate collector keeps warm; 26. a frame; 27. a water tank circulation inlet; 28. a water tank crust; 29. heat preservation of the water tank; 30. a water tank liner; 31. an exhaust port; 32. blind pipe of water tank sensor; 33. a water inlet of the heat exchange tube; 34. a water tank circulation outlet; 35. a corrugated connecting pipe; 36. a heat exchange tube; 37. a water supplementing port of the water tank; 38. and a water outlet of the heat exchange tube.
Description of the embodiments
For a further understanding of the utility model, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings in which:
in fig. 3 and 4, the frame 26 is formed into a square shape by rivets or corner blocks. The back plate 24 is inserted into the groove of the frame 26 and is pressed and fixed. The glass cover 21 is placed on the frame 26 and is fixed to the frame 26 by the bead 20. The flat plate collector insulation 25 is located on the back plate 24 and inside the frame 26. The metal runner 23 is welded under the absorber plate 22 and placed on top of the flat plate collector insulation 25.
In fig. 5, the tank insulation 29 is located intermediate the tank skin 28 and the tank liner 30. The water tank circulation inlet 27, the exhaust port 31, the water tank sensor blind pipe 32, the heat exchange pipe water inlet 33, the water tank circulation outlet 34, the water tank water supplementing port 37 and the heat exchange pipe water outlet 38 are fixed on the water tank liner 30. The corrugated connection pipe 35 connects the heat exchange pipe 36 with the heat exchange pipe water inlet 33 and the heat exchange pipe water outlet 38. The tank circulation outlet 34 is located at the lower right end of the tank 2. The exhaust port 31 is located at the upper right end of the water tank 2. The water tank water supplementing port 37 is positioned at the lower left end of the water tank 2, the water tank circulating inlet 27 is positioned at the upper left end of the water tank 2, and the water tank sensor blind pipe 32 is positioned at the middle right end of the water tank 2. The heat exchange tube water inlet 33 and the heat exchange tube water outlet 38 are respectively positioned at the left end and the right end of the middle part of the water tank 2.
In fig. 1 and 2, the water tank 2 is assembled to form a water tank assembly. The water pump 5 is connected with the water tank circulation outlet 34, and the other interface of the water pump 5 is connected with the interface of the right lower end of the flat plate collector 17 through the circulation outlet pipe 19. The flat plate collector 17 is fixed to the flat plate collector frame 1. The flat plate collectors 17 are connected in series to form a collector group. The interface of the lower left end and the interface of the upper right end of the flat plate collector 17 are closed by plugs 15. The upper left end of the flat plate collector 17 is connected with a circulating inlet 27 of the water tank through a circulating inlet pipe 4.
In fig. 1 and 2, the water inlet 10 of the positive-displacement water heater is positioned at the left lower end of the positive-displacement water heater 11 and is connected with the water outlet 38 of the heat exchange tube. The hot water outlet 12 of the positive-displacement water heater is positioned at the right upper end of the positive-displacement water heater 11.
In fig. 1, a photovoltaic cell 8 is fixed to a photovoltaic cell holder 9. The photovoltaic cell connection line 13 connects the photovoltaic cell 8 and the controller 14. The tank sensor 3 is placed in the tank sensor blind pipe 32. The tank sensor connection line 6 connects the tank sensor 3 and the controller 14. The water pump connecting line 7 connects the water pump 5 and the controller 14. Thermal collector sensor connection 16 connects thermal collector sensor 18 and controller 14. The heat collector 18 is fixed on the upper left end interface of the flat plate heat collector 17.
The working principle of the utility model is as follows: see fig. 1, 2 and 5. Cold water is injected into the water tank 2 through the water tank water compensating port 37. When the temperature of the collector sensor 18 is higher than that of the water tank sensor 3, the photovoltaic cell 8 provides power for the controller 14 and the water pump 5, the water pump 5 is started, water in the water tank 2 flows back to the water tank 2 through the water tank circulation outlet 24 after entering the flat collector 17, and the water in the water tank 2 is heated. When the collector sensor temperature 18 is lower than the tank sensor temperature 3, the water pump 5 is stopped. After the water pump 5 stops running, the water in the flat plate collector 17 flows back to the water tank 2 due to gravity. Has the antifreezing function in winter. When solar energy is irradiated, the controller controls the circulation to automatically run. And when no solar energy is irradiated, the cycle is automatically stopped. Tap water is connected with a water inlet 33 of the heat exchange pipe, is heated by a heat exchange pipe 36 in the water tank 2, and enters the positive-displacement water heater 11 through a water outlet 38 of the heat exchange pipe. When the water temperature in the positive-displacement water heater 11 does not meet the user requirement, the heating device of the positive-displacement water heater 11 can be started to heat to the user requirement. Hot water is delivered to the user's water usage end through the positive displacement water heater hot water outlet 12.
The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the utility model in any way, but any simple modification, equivalent variation and modification of the above embodiments according to the technical principles of the present utility model are within the scope of the technical solutions of the present utility model.
Claims (4)
1. An antifreeze flat panel collector solar water heating system comprising: the solar energy water heater comprises a water tank (2), a flat plate collector (17), a flat plate collector bracket (1), a photovoltaic cell (8), a water tank sensor (3), a heat collecting sensor (18), a controller (14), a water pump (5) and a positive-displacement water heater (11); the method is characterized in that: the photovoltaic cell (8) provides power for the controller (14) and the water pump (5); the flat plate heat collectors (17) are connected in series, the flat plate heat collectors (17) are fixed on the flat plate heat collector support (1), and the water tanks (2) are formed by assembling units of the water tanks (2); the water tank (2) is positioned at the lower part of the flat plate heat collector (17), water directly flows in the flat plate heat collector (17), and the heat exchange tube (36) is positioned in the water tank (2).
2. The antifreeze flat panel collector solar water heating system of claim 1, wherein: the water tank heat preservation (29) is positioned in the middle of the water tank liner (30) of the water tank outer skin (28); the water tank circulating inlet (27), the exhaust port (31), the water tank sensor blind pipe (32), the heat exchange pipe water inlet (33), the water tank circulating outlet (34), the water tank water supplementing port (37) and the heat exchange pipe water outlet (38) are fixed on the water tank liner (30); the corrugated connecting pipe (35) connects the heat exchange pipe (36) with the heat exchange pipe water inlet (33) and the heat exchange pipe water outlet (38).
3. The antifreeze flat panel collector solar water heating system of claim 1, wherein: the flat plate heat collector (17) consists of a pressing strip (20), a glass cover plate (21), a heat absorbing plate (22), a metal runner (23), a back plate (24), a flat plate heat collector heat preservation (25) and a frame (26); the water pump (5) is connected with a water tank circulation outlet (34), and the circulation inlet pipe (4) connects the right lower port of the flat plate collector (17) with the other interface of the water pump (5); the left upper end interface of the flat plate collector (17) is connected with a water tank circulation inlet (27) through a circulation outlet pipe (19).
4. The antifreeze flat panel collector solar water heating system of claim 1, wherein: the water outlet (38) of the heat exchange tube is connected with the water inlet (10) of the volumetric water heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321538150.9U CN220321633U (en) | 2023-06-16 | 2023-06-16 | Anti-freezing solar water heating system with flat plate collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321538150.9U CN220321633U (en) | 2023-06-16 | 2023-06-16 | Anti-freezing solar water heating system with flat plate collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220321633U true CN220321633U (en) | 2024-01-09 |
Family
ID=89425386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321538150.9U Active CN220321633U (en) | 2023-06-16 | 2023-06-16 | Anti-freezing solar water heating system with flat plate collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220321633U (en) |
-
2023
- 2023-06-16 CN CN202321538150.9U patent/CN220321633U/en active Active
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