CN2919124Y - Convective vacuum tube - Google Patents
Convective vacuum tube Download PDFInfo
- Publication number
- CN2919124Y CN2919124Y CNU2006200748390U CN200620074839U CN2919124Y CN 2919124 Y CN2919124 Y CN 2919124Y CN U2006200748390 U CNU2006200748390 U CN U2006200748390U CN 200620074839 U CN200620074839 U CN 200620074839U CN 2919124 Y CN2919124 Y CN 2919124Y
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- CN
- China
- Prior art keywords
- vacuum tube
- convection
- vacuum
- tube
- tubes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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 relates to a convection vacuum tube belonging to solar energy field. Convection vacuum tubes include external tubes and internal tubes; a vacuum interlayer is between the external tubes and internal tubes. The internal tube wall is painted with the heat-absorbing material, the upper end and low end of the vacuum tube are open wide. Therefore, when installing the solar energy water heater, the upper end of the vacuum tube shall run through a seal ring and insert into the water tank, the lower end is inserted into a distributor groove. When heated by the sunshine, the heated water inside the vacuum tubes will be in convection with the water inside the water tank to obviously accelerate the heat exchange rate, shorten temperature rising time and improve heating efficacy. The faster the heating cycle is, the higher the temperature for the water inside tank is, the utility model avoids the heating accumulation inside the vacuum tubes.
Description
Technical field
The utility model relates to a kind of vacuum tube, and especially a kind of vacuum tube structure that is applied on the solar water heater improves, and belongs to solar energy and utilizes the facility technology field.
Background technology
The solar water appliance has the environmental protection and energy saving remarkable advantage, therefore is generalizable.The typical structure of existing solar water heater is that water tank is equipped with in the support top, and vacuum tube is arranged in the support front side.The structure of vacuum tube is made of outer tube 1-1 and interior pipe 1-2 as shown in Figure 1, forms vacuum interlayer 1-3 between outer tube and the interior pipe, and the upper end is opened wide, and lower end back cover 1-5 is coated with on the inner tubal wall with the heat-absorbing material layer, forms water cavity volume 1-4 in the interior pipe.During installation, upper end open is inserted in the water tank by sealing ring.
The existing solar water heater that adopts this vacuum tube is when irradiation of sunlight, and the water in the vacuum tube will heat up because of heat absorption produces.Yet owing to can't form convection current smoothly, so the heat that produces in the pipe is detained greatly in vacuum tube, have only than the water in small part and the water tank and carry out heat exchange, so the intensification of the water in the water tank is very slow.The therefore existing solar water heater thermal efficiency is not high, is difficult in time satisfy user demand.
The utility model content
The purpose of this utility model is: the shortcoming at above prior art exists by architecture advances, proposes a kind of convection vacuum tube, thereby is that the improvement that has solar water heater now lays the foundation.
In order to reach above purpose, convection vacuum tube of the present utility model comprises outer tube and interior pipe, is vacuum interlayer between described outer tube and the interior pipe, is coated with on the described inner tubal wall with the heat-absorbing material layer, the top and bottom of described vacuum tube are all opened wide, and form hollow through-pipe structure.Like this, when being installed on the solar water heater, the upper end of vacuum tube is passed sealing ring and is inserted water tank, and then insert in the splitter box lower end.After by the sunshine heating, the hot water in the vacuum tube can form convection current smoothly with the water in the water tank, thereby significantly accelerates rate of heat exchange, shortens the heating-up time, improves the thermal efficiency.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the structural representation that has the vacuum tube that uses on the solar water heater now.
Fig. 2 is the structural representation of an embodiment of the utility model.
The specific embodiment
Embodiment one
The convection vacuum tube of present embodiment as shown in Figure 2, outer tube 1-1 and interior pipe 1-2 are concentric pipe, are vacuum interlayer 1-3 between two tube walls, are coated with on the inner tubal wall with the heat-absorbing material layer, the top and bottom of whole vacuum tube are all opened wide, and form hollow siphunculus 1-4 structure.
The cylindrical water tank 1 that level is laid is equipped with in support 4 tops.One side of this water tank is provided with gas vent 2 and water inlet, draining common port 3.Support 4 installed in front reflectors 7, one group of vacuum tube 6 of top arranged vertical (tube wall is with heat-sink shell), the vacuum tube central authorities convection tube 8 (tube wall does not have heat-sink shell) that is arranged in parallel, vacuum tube 6 and convection tube 8 equal both ends opens (referring to Fig. 4), water tank is inserted by sealing ring 5 respectively in the upper end, and the lower end is communicated with through the splitter box 9 of horizontal setting.
Solar water heater after the technological transformation has 1 water tank and insulation, by 6 vacuum tubes (heat-generating pipe) and 8 convection tubes (not generating heat), inserts in 1 water tank by 5 sealing rings.7 reflectors are arranged below 6 vacuum tubes.Be provided with 2 emptying gas ports and 3 water inlets, draining (share a pipe) in water tank, whole solar water heater has 4 supports to fix.
Experimental results show that, the convection vacuum tube of present embodiment is once there is irradiation of sunlight, and the very fast heat absorption of the water in the vacuum tube heats up and produces ascendant trend, and convection tube is then guided to the water in the water tank in the chute of lower part, replenish again to vacuum tube, thereby form desirable thermal cycle, illumination is strong more, and thermal cycle is fast more, very fast water temperature in the water tank is raise, even at the cloudy day, also can improve the temperature of water tank rapidly, therefore be called immersion heater type solar water heater.
In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (5)
1. a convection vacuum tube comprises outer tube and interior pipe, is vacuum interlayer between described outer tube and the interior pipe, is coated with the heat-absorbing material layer on the described inner tubal wall, it is characterized in that: the top and bottom of described vacuum tube are all opened wide, and form hollow through-pipe structure.
2. according to the described convection vacuum tube of claim 1, it is characterized in that: described outer tube and interior pipe are concentric pipe.
3. according to the described convection vacuum tube of claim 2, it is characterized in that: the described vacuum tube central authorities convection tube that is arranged in parallel.
4. according to the described convection vacuum tube of claim 3, it is characterized in that: water tank is inserted by sealing ring respectively in the upper end of described vacuum tube and convection tube.
5. according to the described convection vacuum tube of claim 4, it is characterized in that: described splitter box horizontal setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200748390U CN2919124Y (en) | 2006-07-12 | 2006-07-12 | Convective vacuum tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200748390U CN2919124Y (en) | 2006-07-12 | 2006-07-12 | Convective vacuum tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2919124Y true CN2919124Y (en) | 2007-07-04 |
Family
ID=38216943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200748390U Expired - Fee Related CN2919124Y (en) | 2006-07-12 | 2006-07-12 | Convective vacuum tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2919124Y (en) |
-
2006
- 2006-07-12 CN CNU2006200748390U patent/CN2919124Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070704 Termination date: 20110712 |