CN221375993U - Solar hot air heating system - Google Patents
Solar hot air heating system Download PDFInfo
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- CN221375993U CN221375993U CN202323229294.9U CN202323229294U CN221375993U CN 221375993 U CN221375993 U CN 221375993U CN 202323229294 U CN202323229294 U CN 202323229294U CN 221375993 U CN221375993 U CN 221375993U
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 53
- 238000007789 sealing Methods 0.000 claims description 18
- 238000005192 partition Methods 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 10
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 238000012546 transfer Methods 0.000 description 5
- 238000004880 explosion Methods 0.000 description 3
- 238000011835 investigation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011020 pilot scale process Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011172 small scale experimental method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a solar hot air heating system, which comprises a solar heat collecting device, an oil-water heat exchanger, a circulating pipe connected between the solar heat collecting device and the oil-water heat exchanger and an oil pump arranged on the circulating pipe; the solar heat collection device comprises a box body, a first air chamber and a second air chamber which are arranged in the box body and are mutually independent, a fin tube is fixedly arranged in the first air chamber and/or the second air chamber, a heat collection unit for absorbing solar energy is arranged on the box body, the heat collection unit is used for communicating the first air chamber with the second air chamber, and a fan is arranged between the first air pipe and the second air pipe. Clean air circulates in a closed space formed by the first air chamber, the solar heat collecting unit and the second air chamber, so that the inside of the box body and the inside of the solar heat collecting unit are cleaner, corrosion and scaling phenomena cannot occur, the service life is longer, and the later operation and maintenance workload and the operation and maintenance cost are reduced.
Description
Technical Field
The utility model relates to the technical field of solar energy utilization, in particular to a solar hot air heating system.
Background
The current solar water heater mainly comprises two parts, wherein one part is a water tank, and the other part is a vacuum heat collecting tube made of a row of glass and connected to the lower part of the water tank. The vacuum heat collecting pipe is communicated with the inside of the water tank, and after water in the water tank enters the vacuum heat collecting pipe, the vacuum heat collecting pipe transfers sunlight heat to the water in the vacuum heat collecting pipe and exchanges with the water in the water tank, so that the temperature of the water in the water tank is increased.
The water is easy to scale after being heated in the vacuum heat collecting pipe, and is gathered in the vacuum heat collecting pipe and the water tank, so that the heat collecting effect of the vacuum heat collecting pipe is reduced or blocked, and meanwhile, impurities in the water can also corrode the water tank, so that the service life of the solar water heater is reduced. Therefore, the solar water heater needs to be cleaned or maintained regularly, so that the later operation and maintenance workload is large and the operation and maintenance cost is high. When cleaning or maintaining, the solar heat collecting tube needs to be detached, and the vacuum heat collecting tube is difficult to detach from the water tank due to scaling, so that the vacuum heat collecting tube is easy to damage when being detached. In addition, the solar water heater can also cause the problem of water leakage due to burst injection of cold water at high temperature, which causes explosion of the evacuated collector tube.
Disclosure of utility model
The utility model aims to solve the technical problem of providing a solar hot air heating system which is used for solving the problems of large later operation and maintenance workload and high operation and maintenance cost caused by easy scaling of the existing solar water heater.
In order to solve the technical problems, the utility model adopts the following technical scheme:
A solar hot air heating system comprises a solar heat collecting device, an oil-water heat exchanger, a circulating pipe connected between the solar heat collecting device and the oil-water heat exchanger and an oil pump arranged on the circulating pipe; the solar heat collection device comprises a box body, a first air chamber and a second air chamber which are arranged in the box body and are mutually independent, a first air pipe communicated with the first air chamber and a second air pipe communicated with the second air pipe are fixedly arranged on the box body, fin pipes are fixedly arranged in the first air chamber and/or the second air chamber, two ends of each fin pipe are respectively connected with a circulating pipe and form a ring shape with the circulating pipes, a heat collection unit for absorbing solar energy is arranged on the box body, the heat collection unit is used for communicating the first air chamber with the second air chamber, and a fan is arranged between the first air pipe and the second air pipe.
Further, a partition plate is fixedly arranged in the box body, and the first air chamber and the second air chamber are respectively arranged on two sides of the partition plate.
Further, the heat collecting unit comprises a vacuum heat collecting tube and a central tube inserted in the vacuum heat collecting tube; one end of the central tube is close to the bottom of the vacuum heat collecting tube, and the other end of the central tube extends out of the tube orifice of the vacuum heat collecting tube; a gap is formed between the vacuum heat collecting tube and the central tube, the position of the tube orifice of the vacuum heat collecting tube is inserted into a second hole formed in the box body and corresponding to the tube orifice of the vacuum heat collecting tube, one end of the central tube corresponding to the tube orifice of the vacuum heat collecting tube extends out and is inserted into a first hole formed in the partition plate and corresponding to the first hole, the partition plate is in sealing fit with the central tube, the vacuum heat collecting tube is in sealing fit with the box body, the first air chamber is communicated with the central tube, and the gap is communicated with the second air chamber.
Further, the bottom plate is fixedly arranged at the bottom of the box body, the bottom plate is provided with a pipe support at the bottom of the vacuum heat collecting pipe, the pipe support is fixedly connected with the bottom plate, and the pipe support is arranged at the bottom of the vacuum heat collecting pipe.
Further, a first sealing ring is arranged in the first hole, and the central tube is inserted into the first sealing ring.
Further, a second sealing ring is arranged in the second hole, and the evacuated collector tube is inserted in the second sealing ring.
Further, under the action of the fan, air in the first air chamber flows to the bottom of the vacuum heat collecting tube through the central tube, then flows into the second air chamber through a gap between the vacuum heat collecting tube and the central tube, and then enters the first air chamber through the fan to form circulation.
The utility model has the positive effects that:
1. The utility model is provided with the solar heat collecting device, the oil-water heat exchanger and the circulating pipe, the solar heat collecting device comprises a box body and the solar heat collecting unit arranged on the box body, the solar heat collecting unit is used for communicating the first air chamber and the second air chamber in the box body, and clean air circulates in a closed space formed by the first air chamber, the solar heat collecting unit and the second air chamber, so that the box body and the solar heat collecting unit are cleaner, corrosion and scaling phenomena are avoided, the service life is longer, and the later operation and maintenance workload and the operation and maintenance cost are reduced. The fin tube transmits the collected heat to the oil-water heat exchanger through flowing heat conduction oil, and water in the oil-water heat exchanger is heated. The temperature of the heat conducting oil can exceed 100 ℃ and even reach 300 ℃, so that the utility model can directly gasify water for the production of water vapor.
2. The solar heat collection unit comprises a vacuum heat collection tube and a central tube inserted in the vacuum heat collection tube, wherein air in the first air chamber flows to the bottom of the vacuum heat collection tube through the central tube, then turns back upwards, flows into the second air chamber after passing through a gap between the vacuum heat collection tube and the central tube, and then enters the first air chamber to form circulation. Because the two-direction flowing air in the vacuum heat collecting tube is separated by the central tube, the path length of the air flow is increased, heat is transferred between the vacuum heat collecting tube and the flowing air more fully, and the two-direction air complementarily interferes, so that the heat exchange efficiency is improved. Because the vacuum heat collecting pipe cannot be contacted with cold water, the problem of water leakage caused by explosion of the vacuum heat collecting pipe caused by sudden contact with the cold water is avoided.
Drawings
FIG. 1 is a system diagram of the present utility model;
FIG. 2 is a schematic structural view of a solar collector;
FIG. 3 is a schematic view of the internal structure of the case;
in the figure:
1. A first air duct; 2. an oil inlet pipe; 3. a fin tube; 4. a case; 5. an oil outlet pipe; 6. a first seal ring; 7. a partition plate; 8. a second seal ring; 9. a central tube; 10. a vacuum heat collecting pipe; 11. a bottom plate; 12. a pipe bracket; 13. a second air duct; 14. a first plenum; 15. a second plenum; 16. a blower; 17. a circulation pipe; 18. an oil-water heat exchanger; 19. an oil pump.
Detailed Description
In fig. 1 and 2, arrows beside the circulation pipe 17 and the fin pipe 3 are directed in the flow direction of the heat transfer oil, and arrows inside the evacuated collector tube 10, the first air tube 1, and the second air tube 13 are directed in the flow direction of the air.
Example 1
As shown in fig. 1 to 3, a solar hot air heating system includes a solar heat collecting device, an oil-water heat exchanger 18, a circulation pipe 17 connected between the solar heat collecting device and the oil-water heat exchanger 18, and an oil pump 19 provided on the circulation pipe 17. The solar heat collection device comprises a closed box body 4 formed by sheet metal of a steel plate, a first air chamber 14 and a second air chamber 15 which are arranged in the box body 4 and are mutually independent and are arranged on the upper side, a first air pipe 1 communicated with the first air chamber 14 and a second air pipe 13 communicated with the second air chamber 15 are fixedly arranged on the left side of the box body 4, fin pipes 3 are fixedly arranged in the first air chamber 14 in a penetrating mode, and two ends of each fin pipe 3 are respectively connected with a circulating pipe 17 and form a ring shape with the circulating pipe 17.
The lower part of the box body 4 is provided with a heat collecting unit for absorbing solar energy, the heat collecting unit is used for communicating the first air chamber 14 with the second air chamber 15, and a fan 16 is arranged between the first air pipe 1 and the second air pipe 13.
When the fan 16 is operated, air in the first air chamber 14 enters the solar heat collecting unit, is heated by the solar heat collecting unit, enters the second air chamber 15, and flows back to the first air chamber 14 after passing through the second air pipe 13, the fan 16 and the first air pipe 1 to form circulation. In this process, the air in the first air chamber 14 is heated, and the hot air in the first air chamber 14 transfers heat to the heat transfer oil flowing through the fin tubes 3.
When the oil pump 19 is operated, heat conduction oil flows in a counter-clockwise direction in an annular pipeline formed by the circulating pipe 17 and the finned tubes 3, heat of hot air in the first air chamber 14 absorbed by the finned tubes 3 is transferred to the oil-water heat exchanger 18, and water flowing through the oil-water heat exchanger 18 is heated.
Because the air circulates in the closed space formed by the first air chamber 14, the solar heat collecting unit and the second air chamber 15, the first air chamber 14, the solar heat collecting unit and the second air chamber 15 are cleaner, and no corrosion and scaling phenomena exist, so that the service life is longer. The fin tube 3 transfers the collected heat to the oil-water heat exchanger 18 through the flowing heat conduction oil, and heats the water in the oil-water heat exchanger 18.
Because the temperature of the heat conducting oil can exceed 100 ℃, the utility model can directly gasify water for producing water vapor.
Example 2
As shown in fig. 1 to 3, the present embodiment is different from embodiment 1 in that:
The partition plate 7 is fixedly arranged in the box body 4, the first air chamber 14 is arranged on the upper side of the partition plate 7, and the second air chamber 15 is arranged on the lower side of the partition plate 7. The heat collecting unit includes 25 evacuated collector tubes 10 and a center tube 9 inserted into each evacuated collector tube 10. The vacuum heat collecting pipes 10 are all perpendicular to the bottom of the box body 4, and the pipe orifices of the vacuum heat collecting pipes 10 face upwards. The lower ends of the central pipes 9 are respectively close to the bottoms of the corresponding evacuated collector tubes 10, and the upper ends of the central pipes extend out of the pipe orifices of the corresponding evacuated collector tubes 10.
Gaps are reserved between each vacuum heat collecting tube 10 and the corresponding central tube 9, the position of the tube orifice of each vacuum heat collecting tube 10 is inserted into a second hole which is formed in the box body 4 and corresponds to the position of the tube orifice, the upper end of each central tube 9 extends out of the tube orifice of the corresponding vacuum heat collecting tube 10 and is inserted into a first hole which is formed in the partition plate 7 and corresponds to the position of the corresponding central tube 9, the partition plate 7 is in sealing fit with the central tube 9, the vacuum heat collecting tubes 10 are in sealing fit with the box body 4, the first air chamber 14 is communicated with the central tube 9, and the gaps are communicated with the second air chamber 15.
Under the action of the fan 16, air in the first air chamber 14 flows to the bottom of the evacuated collector tube 10 from top to bottom through the central tube 9, then turns back upwards, flows into the second air chamber 15 after passing through a gap between the evacuated collector tube 10 and the central tube 9, and then sequentially passes through the second air pipe 13, the fan 16 and the first air pipe 1 and then enters the first air chamber 14 to form circulation.
The vacuum heat collecting tube 10 adopts the vacuum heat collecting tube 10 adopted by the existing solar water heater, the tube wall is of a vacuum double-layer structure, and the inner layer is coated with heat absorbing materials, so that the heat efficiency is high, the heat dissipation can be effectively avoided in cold winter, air is heated after flowing through the central tube 9 and the vacuum heat collecting tube 10, and then the heat is transferred to the heat conducting oil flowing through the fin tubes 3.
Because the medium in the vacuum heat collecting tube 10 is not water, but clean air, no scaling phenomenon exists, and the phenomenon of heat collection efficiency reduction or blockage caused by scaling does not occur, so that the utility model has more reliable operation and longer service life, and reduces the workload and the operation and maintenance cost of later operation and maintenance. Because the vacuum heat collecting pipe cannot be contacted with cold water, the problem of water leakage caused by explosion of the vacuum heat collecting pipe caused by sudden contact with the cold water is avoided.
Example 3
The bottom plate 11 is fixedly arranged at the bottom of the box body 4, the bottom plate 11 is provided with a pipe bracket 12 at the bottom of the evacuated collector tube 10, the pipe bracket 12 is fixedly connected with the bottom plate 11, and the pipe bracket 12 is supported at the bottom of the evacuated collector tube 10.
A first sealing ring 6 is arranged in the first hole, and the central tube 9 is inserted into the first sealing ring 6. The second hole is internally provided with a second sealing ring 8, and the evacuated collector tube 10 is inserted into the second sealing ring 8.
The bottom plate 11 is inclined, so that the evacuated collector tube 10 receives sunlight to the maximum.
In actual use, the fin tubes 3 of the solar heat collecting devices can be connected in series or in parallel according to actual heat requirements, and then connected with the circulating tube 17, so that more heat is obtained.
The foregoing description of the embodiments of the present utility model has been presented only to illustrate the technical spirit and features of the present utility model, and it is intended to enable those skilled in the art to understand the present utility model and to implement it, but not to limit the scope of the present utility model only by the present embodiments, i.e. equivalent changes or modifications to the spirit of the present utility model disclosed herein, and it is intended for those skilled in the art to make local improvements in the system and changes, variations between subsystems, etc. within the scope of the present utility model without departing from the structure of the present utility model. At present, the technical scheme of the utility model has been subjected to pilot-scale experiments, namely small-scale experiments of products before large-scale mass production; after the pilot test is completed, the use investigation of the user is performed in a small range, and the investigation result shows that the user satisfaction is higher; now, the industrialization of the formal production of the product is prepared, including the early warning investigation of intellectual property risks.
Claims (7)
1. The solar hot air heating system is characterized by comprising a solar heat collecting device, an oil-water heat exchanger (18), a circulating pipe (17) connected between the solar heat collecting device and the oil-water heat exchanger (18) and an oil pump (19) arranged on the circulating pipe (17); the solar heat collection device comprises a box body (4) and a first air chamber (14) and a second air chamber (15) which are mutually independent and are arranged in the box body (4), a first air pipe (1) communicated with the first air chamber (14) and a second air pipe (13) communicated with the second air chamber (15) are fixedly arranged on the box body (4), fin pipes (3) are fixedly arranged in the first air chamber (14) and/or the second air chamber (15), two ends of each fin pipe (3) are respectively connected with a circulating pipe (17) and form a ring shape with the circulating pipes (17), a heat collection unit for absorbing solar energy is arranged on the box body (4), the heat collection unit is communicated with the first air chamber (14) and the second air chamber (15), and a fan (16) is arranged between the first air pipe (1) and the second air pipe (13).
2. A solar hot air heating system according to claim 1, wherein a partition plate (7) is fixedly arranged in the box body (4), and the first air chamber (14) and the second air chamber (15) are respectively arranged at two sides of the partition plate (7).
3. A solar hot air heating system according to claim 2, characterized in that the heat collecting unit comprises a evacuated collector tube (10) and a central tube (9) inserted in the evacuated collector tube (10); one end of the central tube (9) is close to the bottom of the vacuum heat collecting tube (10), and the other end extends out of the tube orifice of the vacuum heat collecting tube (10); there is the clearance between vacuum heat-collecting tube (10) and center tube (9), the mouth of pipe place position of vacuum heat-collecting tube (10) inserts in the second hole that corresponds the setting on box (4), the corresponding one end of center tube (9) and vacuum heat-collecting tube (10) mouth of pipe stretches out and inserts in the first hole that corresponds the setting on baffle (7), baffle (7) and center tube (9) sealing fit, vacuum heat-collecting tube (10) and box (4) sealing fit, first plenum (14) and center tube (9) intercommunication, clearance and second plenum (15) intercommunication.
4. A solar hot air heating system according to claim 3, wherein a bottom plate (11) is fixedly arranged at the bottom of the box body (4), a pipe bracket (12) is arranged at the bottom of the vacuum heat collecting pipe (10) on the bottom plate (11), the pipe bracket (12) is fixedly connected with the bottom plate (11), and the pipe bracket (12) is supported at the bottom of the vacuum heat collecting pipe (10).
5. A solar hot air heating system according to claim 3, characterized in that a first sealing ring (6) is arranged in the first hole, and the central tube (9) is inserted in the first sealing ring (6).
6. A solar hot air heating system according to claim 3, wherein a second sealing ring (8) is arranged in the second hole, and the evacuated collector tube (10) is inserted in the second sealing ring (8).
7. A solar hot air heating system according to claim 3, characterized in that the air in the first air chamber (14) flows to the bottom of the evacuated collector tube (10) through the central tube (9) under the action of the fan (16), then flows into the second air chamber (15) through the gap between the evacuated collector tube (10) and the central tube (9), and then enters the first air chamber (14) through the fan (16) to form a circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323229294.9U CN221375993U (en) | 2023-11-29 | 2023-11-29 | Solar hot air heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323229294.9U CN221375993U (en) | 2023-11-29 | 2023-11-29 | Solar hot air heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221375993U true CN221375993U (en) | 2024-07-19 |
Family
ID=91857680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323229294.9U Active CN221375993U (en) | 2023-11-29 | 2023-11-29 | Solar hot air heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221375993U (en) |
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2023
- 2023-11-29 CN CN202323229294.9U patent/CN221375993U/en active Active
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