CN2773562Y - Convective circualtion tube of solar water heater - Google Patents
Convective circualtion tube of solar water heater Download PDFInfo
- Publication number
- CN2773562Y CN2773562Y CNU2004200795585U CN200420079558U CN2773562Y CN 2773562 Y CN2773562 Y CN 2773562Y CN U2004200795585 U CNU2004200795585 U CN U2004200795585U CN 200420079558 U CN200420079558 U CN 200420079558U CN 2773562 Y CN2773562 Y CN 2773562Y
- Authority
- CN
- China
- Prior art keywords
- pipe
- water heater
- solar water
- tube
- heat
- 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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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
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The utility model relates to a convective circulation pipe of a solar water heater, which enhances convection and heat transfer of cold water between a glass vacuum heat collecting pipe and a water tank. The structure of the utility model mainly adopts a long pipe, both ends of which are not closed, to be inserted in each vacuum heat collecting pipe. The upper end of the long pipe exceeds the heat collecting pipes with definite length. The lower end of the long pipe is provided with a plurality of small holes on the pipe wall of the long pipe to lead the long pipe to form a convective circulation loop for cold water and hot water.
Description
(1) technical field
The utility model belongs to the device that transmits heat in a kind of solar water heater.
(2) background technology
Solar water heater utilizes its glass heat-collecting vacuum tube to absorb the radiant energy of the sun, and changes heat energy into, and the water temperature in the glass tube is constantly risen, then with water storage tank in the cold water convection heat transfer' heat-transfer by convection.But because thermal-collecting tube is a very big caecum pipe of tilt installing of draw ratio, hot water rises naturally and the natural downward trend of cold water though have, and the fluid of rise and fall is blended among the same runner, its actual effect be circulate not smooth.Cause the thermal-collecting tube hot-spot.In order to improve the heat transmission function between thermal-collecting tube and the water storage tank, according to investigations, present solar water heater product is often taked following measure: one, the heat pipe of a fine copper is set in each vacuum heat collection pipe, its cold junction is stretched among water storage tank, and this method heat-transfer effect is better, but the manufacturing technology complexity of heat-pipe apparatus, production cost is very high, is unfavorable for the competition of civilian popularization and commodity.Its two, in vacuum heat collection pipe, insert the glass tube of a closed at both ends, this method does not have obvious improvement for heat-transfer effect ， And.
(3) summary of the invention
In order to overcome high-temperature-hot-water and the smooth problem of the heat transfer of the water at low temperature in the water storage tank in the existing solar water heater glass heat-collecting vacuum tube, the utility model provides a kind of convection circulation pipe, this convection circulation pipe can improve the mutual convection heat transfer' heat-transfer by convection of hot and cold water between thermal-collecting tube and the water storage tank effectively, improves the integral working of solar water heater.
The technical scheme in the invention for solving the technical problem is: the long tube that adopts a kind of two ends not seal is inserted in the middle of each vacuum heat collection pipe of solar water heater, the concentric And of basic between the two maintenance leaves certain interval, its length requirement upper end exceeds certain distance outside the vacuum heat collection pipe (10～20 centimetres), put in the water storage tank, the bottom ， And that the lower end is inserted to vacuum heat collection pipe opens some apertures (φ 10～φ 20mm is advisable) on the tube wall of the lower end of this long tube.If not perforate on the lower end tube wall of this pipe then must be provided with support member to this long tube, guarantee that the runner of lower end is unimpeded.Convection circulation pipe provided by the utility model, its superiority is that it is with the cross section of fluid channel in the vacuum heat collection pipe, be divided into inside and outside two runners, form the closed circuit of a cold water hot water, the water in the pipe external series gap is by solar energy heating, and temperature raises, relative density diminishes, therefore and upwards flow, enter water tank, the cold water in the water tank enters from the upper end of convection circulation pipe simultaneously, along descending in the pipe, flow out from many apertures, be supplemented to the lower end of vacuum heat collection pipe, so hot water rises, cold water descends, each flows its road, does not disturb mutually, thereby has improved the programming rate of solar water heater.Simultaneously can avoid glass heat-collecting vacuum tube and heat absorbing coating thereof localized hyperthermia's superheating phenomenon to occur, make it to prolong the service life of coating, reduce the emission ratio of coating, improve heat absorption efficiency.
The beneficial effects of the utility model are to improve the programming rate of solar water heater, the heat absorption efficiency of raising thermal-collecting tube, the service life of prolongation thermal-collecting tube.
(4) description of drawings
Accompanying drawing is mounting structure figure of the present utility model.1. convection circulation pipes among the figure; 2. the glass heat-collecting vacuum tube of solar water heater; 3. the water storage tank of solar water heater.
(5) specific embodiment
In the accompanying drawings, convection circulation pipe provided by the utility model (1) is inserted in each glass heat-collecting vacuum tube (2) of existing solar water heater, and the upper end puts in the water storage tank (3) of solar water heater.
Claims (1)
1. solar water heater convection circulation pipe is characterized in that: insert two ends and do not seal and can make flowing water unimpeded long tube up and down in each glass heat-collecting vacuum tube of solar water heater, stretch in the water storage tank of solar water heater the upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200795585U CN2773562Y (en) | 2004-09-17 | 2004-09-17 | Convective circualtion tube of solar water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200795585U CN2773562Y (en) | 2004-09-17 | 2004-09-17 | Convective circualtion tube of solar water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2773562Y true CN2773562Y (en) | 2006-04-19 |
Family
ID=36708825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200795585U Expired - Fee Related CN2773562Y (en) | 2004-09-17 | 2004-09-17 | Convective circualtion tube of solar water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2773562Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968281A (en) * | 2010-10-29 | 2011-02-09 | 无锡工艺职业技术学院 | Vacuum heat-absorbing tube of solar water heater |
| CN109099232A (en) * | 2018-09-19 | 2018-12-28 | 成都辰语轩科技有限公司 | A kind of flexible heat-insulating plastic conduit connection structure |
| CN109114318A (en) * | 2018-09-19 | 2019-01-01 | 成都辰语轩科技有限公司 | A kind of connection structure of plastic conduit and plastic conduit |
| CN109357416A (en) * | 2018-09-30 | 2019-02-19 | 天津大学 | A kind of solar energy heat collection pipe of the aperture on heat dump |
-
2004
- 2004-09-17 CN CNU2004200795585U patent/CN2773562Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968281A (en) * | 2010-10-29 | 2011-02-09 | 无锡工艺职业技术学院 | Vacuum heat-absorbing tube of solar water heater |
| CN101968281B (en) * | 2010-10-29 | 2013-01-09 | 无锡工艺职业技术学院 | Vacuum heat-absorbing tube of solar water heater |
| CN109099232A (en) * | 2018-09-19 | 2018-12-28 | 成都辰语轩科技有限公司 | A kind of flexible heat-insulating plastic conduit connection structure |
| CN109114318A (en) * | 2018-09-19 | 2019-01-01 | 成都辰语轩科技有限公司 | A kind of connection structure of plastic conduit and plastic conduit |
| CN109114318B (en) * | 2018-09-19 | 2021-08-17 | 杭州光华橡塑有限公司 | Plastic pipeline and connecting structure thereof |
| CN109357416A (en) * | 2018-09-30 | 2019-02-19 | 天津大学 | A kind of solar energy heat collection pipe of the aperture on heat dump |
| CN109357416B (en) * | 2018-09-30 | 2024-03-15 | 天津大学 | Solar heat collecting tube with holes on heat absorber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |