CN217209889U - Vacuum tube type solar water heater - Google Patents
Vacuum tube type solar water heater Download PDFInfo
- Publication number
- CN217209889U CN217209889U CN202220347095.4U CN202220347095U CN217209889U CN 217209889 U CN217209889 U CN 217209889U CN 202220347095 U CN202220347095 U CN 202220347095U CN 217209889 U CN217209889 U CN 217209889U
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- heat exchange
- heat collecting
- heat
- water heater
- exchange cavity
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 230000001105 regulatory effect Effects 0.000 claims abstract description 14
- 239000007789 gas Substances 0.000 claims description 41
- 238000005192 partition Methods 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 11
- 239000011261 inert gas Substances 0.000 claims description 5
- 238000004880 explosion Methods 0.000 abstract description 6
- 230000008602 contraction Effects 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 description 5
- 230000005855 radiation Effects 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004321 preservation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004089 microcirculation Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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- 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
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The utility model discloses a vacuum tube type solar water heater, which belongs to the technical field of water heaters and comprises a support, a water storage tank, a heat collecting tube and a pressure adjusting component, wherein the water storage tank and the heat collecting tube are arranged on the support; the heat collecting pipe is connected with the shell and communicated with the heat exchange cavity, and heat exchange media in the heat collecting pipe and the heat exchange cavity are gas; the pressure regulating assembly is connected with the shell and can regulate the pressure in the heat exchange cavity. Because the heat collecting pipe is not communicated with the inner container, water leakage of the inner container can not be caused. When cold water is injected into the inner container, the cold water cannot enter the heat collecting pipe, so that pipe explosion cannot be caused. The pressure in the heat exchange cavity is adjusted through the pressure adjusting assembly so as to compensate the pressure change in the heat exchange cavity caused by expansion and contraction of the gas.
Description
Technical Field
The utility model relates to a water heater technical field especially relates to a vacuum tube formula solar water heater.
Background
The solar water heater converts solar energy into heat energy, heats water from low temperature to high temperature, and meets the requirement of hot water in life and production. The solar water heater is divided into a vacuum tube type solar water heater and a flat plate type solar water heater according to the structural form. At present, vacuum tube type solar water heaters are mainly used in the market.
As shown in fig. 1, the conventional vacuum tube solar water heater mainly comprises a support 1, a water storage tank 2 and a heat collecting tube 3, wherein the heat collecting tube 3 is communicated with the water storage tank 2, the heat collecting tube 3 converts solar energy into heat energy, and the water generates microcirculation to achieve required hot water by utilizing the principle that hot water floats upwards and cold water sinks.
The water storage tank 2 comprises a shell 21 and an inner container 22, a heat insulation layer 24 is arranged between the shell 21 and the inner container 22, the pipe orifice of the heat collection pipe 3 is connected with the inner container 22, the joint is usually sealed by a sealing ring, and the water leakage problem is easy to occur after long-time operation.
When cold water is supplemented into the water storage tank 2, the cold water can enter the heat collecting pipe 3, and cold and hot impact is caused due to the fact that the temperature of the original water in the heat collecting pipe 3 is high, so that pipe explosion is easily caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a vacuum tube formula solar water heater to solve the fried pipe and the mouth of pipe problem of leaking that exist among the prior art.
As the conception, the utility model adopts the technical proposal that:
a vacuum tube type solar water heater comprising:
a support;
the water storage tank is arranged on the support and comprises a shell and an inner container arranged in the shell, and a hollow heat exchange cavity is formed between the inner container and the shell;
the heat collecting pipe is arranged on the support, connected with the shell and communicated with the heat exchange cavity, and the heat exchange media in the heat collecting pipe and the heat exchange cavity are gas;
and the pressure regulating assembly is connected with the shell and can regulate the pressure in the heat exchange cavity.
The heat exchange cavity is internally provided with a heat insulation layer on the inner wall of the shell, and the heat insulation layer and the inner container are arranged at intervals.
And the pipe orifice of the heat collecting pipe penetrates through the heat insulating layer.
The heat exchange cavity is internally provided with a partition plate, the heat insulation layer is positioned between the shell and the partition plate, the partition plate and the inner container are arranged at intervals, and the pipe orifice of the heat collection pipe penetrates through the partition plate.
The heat collecting pipes are arranged in a plurality of numbers, and the heat collecting pipes are uniformly arranged at intervals along the axial direction of the shell.
And a sealing ring is arranged at the joint of each heat collecting pipe and the shell.
The pressure adjusting assembly comprises an air suction valve and a pressure release valve, and the air suction valve and the pressure release valve are connected with the shell.
The pressure regulating assembly further comprises a gas storage tank, the inert gas is located in the gas storage tank, and the suction valve and the pressure release valve can be communicated with the heat exchange cavity and the gas storage tank.
The support comprises a first supporting portion and a second supporting portion, the first supporting portion is vertically arranged, the second supporting portion is obliquely arranged, the water storage tank is located at the joint of the first supporting portion and the second supporting portion, and the heat collecting pipe is located on the second supporting portion.
Wherein a first reinforcing rod is arranged between the first supporting part and the second supporting part.
The utility model has the advantages that:
the utility model provides a vacuum tube solar water heater forms the heat transfer chamber between the shell of storage water tank and the inner bag, thermal-collecting tube and heat transfer chamber intercommunication, and the thermal-collecting tube does not communicate with the inner bag, consequently can not cause the inner bag to leak. When the solar radiation reaches the heat collecting pipe, the heat collecting pipe converts the solar radiation into heat energy to heat the gas in the heat collecting pipe, the hot gas floats upwards to the heat exchange cavity and surrounds the periphery of the inner container, and the water in the inner container is heated through the hot gas; when cold water is injected into the inner container, the cold water cannot enter the heat collecting pipe, so that pipe explosion cannot be caused. The pressure in the heat exchange cavity is adjusted through the pressure adjusting assembly to compensate pressure changes in the heat exchange cavity caused by expansion with heat and contraction with cold of gas, so that pipe explosion caused by overhigh pressure in the heat collecting pipe can be prevented, and the phenomenon of poor heat exchange effect caused by lower pressure in the heat collecting pipe can be avoided.
Drawings
FIG. 1 is a schematic view of a prior art vacuum tube solar water heater;
fig. 2 is a schematic side view of a vacuum tube solar water heater according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a portion of the structure of FIG. 2;
fig. 4 is a schematic front view of a vacuum tube solar water heater according to an embodiment of the present invention;
fig. 5 is a schematic side view of a vacuum tube solar water heater provided by the second embodiment of the present invention.
In the figure:
1. a support; 11. a first support section; 12. a second support portion; 13. a first reinforcement bar; 14. a second reinforcement bar;
2. a water storage tank; 21. a housing; 22. an inner container; 23. a heat exchange cavity; 24. a heat-insulating layer;
3. a heat collecting pipe;
4. a pressure regulating assembly; 41. a valve assembly; 42. an air storage tank.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Example one
Referring to fig. 2 to 4, the embodiment of the utility model provides a vacuum tube solar water heater, including support 1, storage water tank 2, thermal-collecting tube 3 and pressure regulating assembly 4, support 1 plays the supporting role, and storage water tank 2 and thermal-collecting tube 3 all set up on support 1, and pressure regulating assembly 4 is used for adjusting the pressure in thermal-collecting tube 3.
Specifically, the support 1 includes a first support portion 11 vertically arranged and a second support portion 12 obliquely arranged, the water storage tank 2 is located at the joint of the first support portion 11 and the second support portion 12, and the heat collecting pipe 3 is located on the second support portion 12.
A first reinforcement bar 13 is disposed between the first support portion 11 and the second support portion 12 to increase structural strength.
The second support portion 12 includes a frame structure and a second reinforcement bar 14 disposed inside the frame structure to increase structural strength.
The heat collecting pipes 3 are arranged in a plurality of numbers, and the heat collecting pipes 3 are evenly arranged along the axial direction of the shell 21 at intervals to ensure a larger heat collecting area.
The water storage tank 2 comprises a shell 21 and an inner container 22 arranged in the shell 21, and a hollow heat exchange cavity 23 is formed between the inner container 22 and the shell 21; the heat collecting tube 3 is connected with the shell 21 and communicated with the heat exchange cavity 23, and heat exchange media in the heat collecting tube 3 and the heat exchange cavity 23 are gas; the pressure regulating assembly 4 is connected with the outer shell 21, and the pressure regulating assembly 4 can regulate the pressure in the heat exchange cavity 23.
Because the heat collecting tube 3 is communicated with the heat exchange cavity 23 and the heat exchange medium is gas, the heat collecting tube 3 is not communicated with the inner container 22, and water leakage of the inner container 22 cannot be caused.
When the solar radiation irradiates the heat collecting tube 3, the heat collecting tube 3 converts the solar radiation into heat energy to heat the gas in the heat collecting tube 3, the hot gas floats upwards to the heat exchange cavity 23 and surrounds the periphery of the inner container 22, and the water in the inner container 22 is heated through the hot gas; when cold water is injected into the inner container 22, the cold water cannot enter the heat collecting pipe 3, so that pipe explosion cannot be caused. The arrows in the figure indicate the direction of flow of the gas.
Since the hot gas forms a gas layer on the periphery of the inner container 22, the gas layer has certain heat insulation function when the sun is absent.
An insulating layer 24 is arranged on the inner wall of the shell 21 in the heat exchange cavity 23, and the insulating layer 24 and the inner container 22 are arranged at intervals. In this embodiment, the hot gas in the heat collecting tube 3 rises to the heat exchanging cavity 23, and the hot gas can directly contact with the insulating layer 24.
The pipe orifice of the heat collecting pipe 3 penetrates through the heat insulating layer 24, so that the hot gas can be rapidly contacted with the outer surface of the inner container 22.
The junction of each heat collecting pipe 3 and the shell 21 is provided with a sealing ring, so that the sealing performance inside is ensured.
In other embodiments, a partition plate may be disposed in the heat exchange cavity 23, the insulating layer 24 is located between the casing 21 and the partition plate, the partition plate and the inner container 22 are spaced apart from each other, and the pipe opening of the heat collecting pipe 3 penetrates through the partition plate. At this moment, the hot gas in the heat collecting tube 3 rises to the heat exchange cavity 23, and the hot gas is located between the partition plate and the inner container 22, and the hot gas can not directly contact with the heat preservation layer 24, and because of the isolation effect of the partition plate, the heat preservation performance is also enhanced to a certain extent. The pipe orifice of the heat collecting pipe 3 needs to penetrate through the partition plate, and a sealing ring can be arranged between the heat collecting pipe 3 and the partition plate, so that the sealing performance is enhanced.
Adjust the pressure in the heat transfer chamber 23 through pressure adjustment subassembly 4 to the pressure variation in the heat transfer chamber 23 that the gaseous expend with heat and contract with cold of compensation arouses not only can prevent that the too high pipe explosion that leads to of thermal-collecting tube 3 internal pressure, can also avoid the lower phenomenon that leads to of heat transfer effect is poor of thermal-collecting tube 3 internal pressure.
In this embodiment, the gas is air.
The pressure regulating assembly 4 employs an existing valve structure. The pressure regulating assembly 4 comprises an air suction valve and a pressure relief valve, and the air suction valve and the pressure relief valve are both connected with the shell 21. One end of the suction valve is communicated with the heat exchange cavity 23, and the other end is communicated with the outside. One end of the pressure release valve is communicated with the heat exchange cavity 23, and the other end of the pressure release valve is communicated with the outside.
When external temperature is higher, for example at noon in summer, sunshine is sufficient, the gas temperature of heat collecting tube 3 rises, and the pressure in heat collecting tube 3 and the heat transfer chamber 23 increases, and when pressure reached first setting value, the relief valve was opened to reduce the pressure in heat collecting tube 3, prevent to explode the pipe. When the outside temperature is reduced, the temperature of the gas in the heat collecting tube 3 is reduced, the pressure in the heat collecting tube 3 and the heat exchange cavity 23 is reduced, and the outside gas is sucked by the suction valve.
The working principle of the air suction valve is as follows: the atmospheric pressure and the pressure difference in the heat exchange cavity 23 act on the sealing element to push the sealing element, the sealing surface is opened to introduce the external atmosphere, the pressure in the heat exchange cavity 23 is increased to destroy the negative pressure until the pressure is balanced, the sealing element falls down again to seal, and the external atmosphere does not enter the heat exchange cavity 23 any more.
The pressure regulating assembly 4 may also be implemented with existing pressure balancing valves, which will not be described in detail herein.
In addition, the inner container 22 is connected with a water inlet pipe and a water outlet pipe. One end of the water inlet pipe is communicated with the inner container 22, and the other end is communicated with the outside. One end of the water outlet pipe is communicated with the inner container 22, and the other end is communicated with the outside. The water can be stored in the inner container 22 through the water inlet pipe, and the hot water generated in the inner container 22 can flow out through the water outlet pipe.
Example two
Fig. 5 shows a second embodiment, wherein the same or corresponding parts as in the first embodiment are provided with the same reference numerals as in the first embodiment. For the sake of simplicity, only the differences between the second embodiment and the first embodiment will be described. The difference is that in this embodiment, the heat exchange medium is an inert gas. The pressure regulating assembly 4 comprises a valve assembly 41 and a gas storage tank 42, the inert gas is located in the gas storage tank 42, and the valve assembly 41 comprises a suction valve and a pressure relief valve which can communicate the heat exchange cavity 23 and the gas storage tank 42. One end of the suction valve is communicated with the heat exchange cavity 23, and the other end is communicated with the air storage tank 42. One end of the pressure relief valve is communicated with the heat exchange cavity 23, and the other end is communicated with the air storage tank 42.
Specifically, an air suction valve and a pressure release valve are connected with the housing, the air suction valve is communicated with the air storage tank 42 through a pipeline, and the pressure release valve is communicated with the air storage tank 42 through a pipeline.
When external temperature is higher, for example noon in summer, sunshine is sufficient, and the gas temperature of thermal-collecting tube 3 rises, and the pressure in thermal-collecting tube 3 and the heat transfer chamber 23 increases, and when pressure reached first setting value, the relief valve was opened, with gas discharge gas holder 42 to reduce the pressure in thermal-collecting tube 3, prevent the fried pipe. When the outside temperature is reduced, the temperature of the gas in the heat collecting tube 3 is reduced, the pressure in the heat collecting tube 3 and the heat exchange cavity 23 is reduced, and the gas in the gas storage tank 42 is sucked into the heat exchange cavity 23 by the suction valve.
The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A vacuum tube solar water heater comprising:
a support (1);
the water storage tank (2) is arranged on the support (1), the water storage tank (2) comprises a shell (21) and an inner container (22) arranged in the shell (21), and a hollow heat exchange cavity (23) is formed between the inner container (22) and the shell (21);
the heat collecting tube (3) is arranged on the support (1), the heat collecting tube (3) is connected with the shell (21) and communicated with the heat exchange cavity (23), and heat exchange media in the heat collecting tube (3) and the heat exchange cavity (23) are gas;
the pressure adjusting assembly (4) is connected with the shell (21), and the pressure adjusting assembly (4) can adjust the pressure in the heat exchange cavity (23).
2. The vacuum tube solar water heater according to claim 1, wherein an insulating layer (24) is arranged on the inner wall of the outer shell (21) in the heat exchange cavity (23), and the insulating layer (24) is spaced from the inner container (22).
3. The evacuated tube solar water heater according to claim 2, characterized in that the tube openings of the heat collecting tubes (3) pass through the insulating layer (24).
4. The vacuum tube type solar water heater according to claim 2, wherein a partition plate is arranged in the heat exchange cavity (23), the insulating layer (24) is positioned between the outer shell (21) and the partition plate, the partition plate and the inner container (22) are arranged at intervals, and the pipe orifice of the heat collecting tube (3) penetrates through the partition plate.
5. The evacuated tube solar water heater according to claim 1, characterized in that the heat collecting tube (3) is provided in plurality, and the plurality of heat collecting tubes (3) are uniformly spaced along the axial direction of the outer shell (21).
6. The evacuated tube solar water heater according to claim 5, characterized in that a sealing ring is arranged at the junction of each heat collecting tube (3) and the outer shell (21).
7. Vacuum tube solar water heater according to claim 1, characterized in that the pressure regulating assembly (4) comprises a suction valve and a pressure relief valve, both connected to the housing (21).
8. The vacuum tube solar water heater according to claim 7, wherein the heat exchange medium is an inert gas, the pressure regulating assembly (4) further comprises a gas storage tank (42), the inert gas is located in the gas storage tank (42), and the gas suction valve and the pressure relief valve can communicate the heat exchange cavity (23) and the gas storage tank (42).
9. The evacuated tube solar water heater according to any one of claims 1-8, characterized in that the bracket (1) comprises a first support part (11) arranged vertically and a second support part (12) arranged obliquely, the water storage tank (2) is located at the junction of the first support part (11) and the second support part (12), and the heat collecting tube (3) is located on the second support part (12).
10. Vacuum tube solar water heater according to claim 9, characterized in that a first stiffening rod (13) is arranged between the first support (11) and the second support (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220347095.4U CN217209889U (en) | 2022-02-21 | 2022-02-21 | Vacuum tube type solar water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220347095.4U CN217209889U (en) | 2022-02-21 | 2022-02-21 | Vacuum tube type solar water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217209889U true CN217209889U (en) | 2022-08-16 |
Family
ID=82798201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220347095.4U Active CN217209889U (en) | 2022-02-21 | 2022-02-21 | Vacuum tube type solar water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217209889U (en) |
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2022
- 2022-02-21 CN CN202220347095.4U patent/CN217209889U/en active Active
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