CN202382448U - Heat tube type vacuum tube solar water heater with horizontal condensation sections - Google Patents
Heat tube type vacuum tube solar water heater with horizontal condensation sections Download PDFInfo
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- CN202382448U CN202382448U CN201120438050XU CN201120438050U CN202382448U CN 202382448 U CN202382448 U CN 202382448U CN 201120438050X U CN201120438050X U CN 201120438050XU CN 201120438050 U CN201120438050 U CN 201120438050U CN 202382448 U CN202382448 U CN 202382448U
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- vacuum tube
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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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Abstract
The utility model provides a heat tube type vacuum tube solar water heater with horizontal condensation sections, which belongs to the technical field of solar water heaters and comprises vacuum tubes with condensation sections and evaporation sections, a water storage tank, seal rings, a supporting plate, a support and water. The supporting plate is arranged on the support and used for supporting the bottom of the evaporation sections of the vacuum tubes, the inner tubes of the condensation sections and the inner tubes of the evaporation sections of the vacuum tubes are integrally communicated, and the condensation sections and the evaporation sections are perpendicular. The condensation sections of the vacuum tubes are inserted into the water storage tank through holes on the wall of the water storage tank and parallel to the wall of the water storage tank, and the seal rings are arranged among the condensation sections of the vacuum tubes and the holes on the wall of the water storage tank respectively. The heat tube type vacuum tube solar water heater with horizontal condensation sections overcomes defects of low solar energy utilization efficiency and poor safety of vacuum tubes of existing heat tube type vacuum tube solar water heaters.
Description
Technical field
The utility model relates to a kind of heat pipe solar energy water-heater with horizontal condensation segment, belongs to the technical field of solar water heater.
Background technology
Existing heat pipe solar energy water-heater mainly is made up of gravity assisted heat pipe formula vacuum tube, storage tank, support etc.
The operation principle of heat pipe solar energy water-heater is: heat pipe type vacuum pipe is divided into following evaporator section and top condensation segment.Following evaporator section is made up of inside and outside two layers of concentric glass round tube, and outer pipe is a transparent glass tube, and solar energy passes outer layer glass tube with very high transmissivity.The inner layer glass tube outer surface scribbles the coating that absorbs solar energy, and the space between interior pipe and outer tube is evacuated, and absorbs scattering and disappearing of heat to stop internal layer.Evaporable liquid working substance is housed in the inner layer glass tube, and sunshine passes outer tube and is absorbed by the inner tube outer surface coating, and the liquid working substance in the inner tube is heated and becomes steam.Steam rises to condensation segment, and condensation segment is the extension of pipe in the evaporator section, has only one deck glass tube, and outer surface does not have coating.Condensation segment inserts in the water heater storage tank, contacts with cold water in the water tank.Steam is cooled to liquid by the cold water in the water tank, emits heat cold water to cold water, and the evaporator section below coagulating liq flows back under the gravity effect carries out periodic duty.
Absorb solar energy at evaporator section and become steam, steam in the condense process of heat release of the section of condensing water in water tank through what working medium in the heat pipe was gone round and begun again, water temperature constantly rises in the storage tank, thus acquisition hot water.
Cold water in the condensation segment heating storage tank of heat pipe type vacuum pipe, the runnability of the heat transfer rate opposite heat tube formula solar vacuum-tube water heater between condensation segment and cold water has material impact.If heat transfer rate is slower, then steam can not condense into liquid rapidly at condensation segment, and evaporator section evaporation of liquid amount diminishes immediately, this means that the solar energy that solar water heater absorbs reduces decrease in efficiency.Simultaneously, steam can not condense rapidly at condensation segment, and then steam pressure raises in the vacuum tube; Evaporator section evaporation of liquid temperature increases; This causes the vacuum tube surface temperature to raise, and the vacuum tube surface increases to the radiation loss of environment so, and the energy utilization efficiency of solar water heater reduces.The rising of steam pressure has also increased the danger of vacuum tube booster in the vacuum tube, and is also totally unfavorable to the safe operation of solar water heater.
Therefore, from improving heat pipe solar energy water-heater to the solar energy utilization ratio, and the angle that improves the water heater safety in operation sets out, and should improve the heat transfer rate between condensation segment steam and the water.
In the heat pipe solar energy water-heater that uses at present, the vacuum tube condensation segment inserts in the storage tank perpendicular to the water storage tank wall.Behind the condensation segment heating cold water, formation temperature is poor in cold water, thereby has formed the free convection of water.The free convection of water has material impact to the heat transfer rate between water and condensation segment.Free convection is strong more, and heat transfer rate is fast more.
But condensation segment can produce serious weakening to the heat transfer rate of water and condensation segment perpendicular to the structure of water storage tank wall.The storage tank inner cold water was heated after a period of time; Because cold water totally keeps inactive state, the inversion layer that water can in water tank, occur distributes, i.e. storage tank top water temperature the highest (density of water is minimum); Down temperature reduces, bottommost temperature minimum (density of water is maximum).In the water that is in the inversion layer temperature distribution state, be difficult for producing the free convection campaign.
The steam that evaporator section produces rises under buoyancy, gets into condensation segment.Therefore, the condensation segment overhead vapor is maximum, and temperature is the highest, and temperature reduces downwards.Clearly, this upper temp is high, and the heat form to cold water that temperature of lower is low also is unfavorable in water, producing stronger free convection campaign.Simultaneously, the condensation segment top of high temperature and the higher heat transfer water of upper temp, during the lower heat transfer water of the condensation segment of low temperature bottom and following surface temperature, the heat transfer temperature difference between condensation segment and the water reduces, and this has also reduced the heat transfer rate between condensation segment and the water.
In sum; The heat pipe type vacuum pipe condensation segment has suppressed the free convection campaign of water perpendicular to the version of water storage tank wall; Reduced the heat transfer temperature difference of condensation segment and water; These all make the heat transfer rate between condensation segment and the water reduce, thereby cause water heater solar energy utilization ratio to descend, and the vacuum tube security reduces.
Summary of the invention
The purpose of the utility model is that existing heat pipe solar energy water-heater is low to the solar energy utilization ratio, the shortcoming of vacuum tube poor stability in order to overcome, and a kind of novel heat pipe solar energy water-heater is provided.
The purpose of the utility model can adopt following technical scheme to realize:
Heat pipe solar energy water-heater with horizontal condensation segment; Comprise vacuum tube, storage tank, sealing ring, supporting plate, support and water with condensation segment and evaporator section; Supporting plate is located on the support, is used for supporting the bottom of vacuum tube evaporator section, and the condensation segment of vacuum tube is the integral body that is communicated with the interior pipe of evaporator section; Wherein, condensation segment and evaporator section form the right angle; The condensation segment of vacuum tube inserts in the storage tank through the hole on the water storage tank wall, and is parallel to the placement of water storage tank wall; Be provided with sealing ring between the hole of the condensation segment of vacuum tube and water storage tank wall.
Described support is that the assembling of storage tank and vacuum tube provides support, and keeps the stable of solar water heater, and makes the correct direction of vacuum tube maintenance with abundant absorption solar energy.Supporting plate is from supporting in the face of vacuum tube down and fixing.Sealing ring is used for preventing that the water in the storage tank from passing through the slot leakage between vacuum tube condensation segment and storage tank.
The condensation segment of vacuum tube is horizontal positioned in storage tank, and is in water tank bottom.Need the cold water of heating to get into storage tank, offer the hot water user through pipeline again after being heated through pipeline.
The water heater of the utility model has and starts fast, liquid in pipe and do not produce mud, do not freeze, and the advantage of heat pipe efficient heat transfer between evaporator section and condensation segment.Simultaneously; The utility model makes condensation segment in storage tank, be horizontal positioned; And being in water tank bottom, this version not only makes the condensation segment of high temperature all be immersed in the water at low temperature of bottom water is heated, thereby in water, forms strong free convection campaign; And make that the heat transfer temperature difference between condensation segment and the water is maximum; These have all improved the heat transfer rate between condensation segment and the water, thereby have improved the utilization ratio of solar water heater to solar energy, have strengthened the security of heat pipe type vacuum pipe.
Description of drawings
Fig. 1 is the structural representation of the heat pipe solar energy water-heater with horizontal condensation segment of the utility model.
Fig. 2 be among Fig. 1 storage tank along the profile of A-A direction.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done further explain.
In conjunction with Fig. 1 and Fig. 2, the utility model solar water heater mainly is made up of vacuum tube, storage tank, sealing ring 2, supporting plate 4, support 5 and the water 7 etc. of condensation segment 6 and evaporator section 3.Condensation segment 6 is vertical with evaporator section 3.
The evaporator section 3 of vacuum tube is made up of inside and outside two layers of glass tube, and outer layer glass tube is transparent, and sunshine can see through.The outside of inner layer glass tube scribbles the coating that absorbs solar energy, but the liquid refrigerant in the heating, vacuum pipe after the coated absorption of solar energy, and liquid refrigerant becomes steam, and rises to condensation segment.Vacuum is pumped in the gap of inside and outside layer glass tube, with energy scattering and disappearing to the external world after the pipe temperature raises in reducing.
Steam rises to condensation segment 6 in tilted-putted vacuum tube, condensation segment 6 stretches in the storage tank of solar water heater.Condensation segment 6 is a single-glass, and the outside does not absorb the coating of solar energy, and the water at low temperature of the high-temperature steam in the condensation segment 6 outside pipe emitted heat, and the coolant-temperature gage in the storage tank rises.Because with horizontal condensation segment 6 structures of water storage tank wall 1 parallel placement, and condensation segment 6 is in the position characteristics of storage tank bottom, can in water, produce strong free convection campaign, the heat transfer temperature difference between increase condensation segment 6 and the water.These can both make the heat transfer rate between condensation segment 6 and the water increase, and improve the utilization ratio of water heater to solar energy, strengthen the security of vacuum tube.
Become liquid after steam is cooled, liquid flows back to evaporator section 3 downwards.Thereby form following periodic duty process in the solar water heater: the evaporator section coating absorbs solar energy and converts heat energy → liquid refrigerant heat absorption becoming steam → steam into and rises to condensation segment → steam heat release and condense into liquid, and water temperature rise → liquid drops to evaporator section in the storage tank.Through after the work of long period, solar water heater can produce hot water.
The concrete grammar that realization the utility model water heater structure can adopt is following:
1, make a cylindrical storage tank with heat-insulation layer, even ground auger one round on storage tank, the diameter in hole and sealing ring external diameter are complementary.
2, make pipe in the vacuum tube, the condensation segment of pipe and evaporator section form the right angle in making, and add an amount of liquid heat-pipe working medium in the interior pipe, then interior Guan Erduan are shut, at evaporator section outer surface spraying solar energy absorbing coating.
3, make end sealing, the evaporator section outer tube of an end opening, outer tube diameter are greater than interior pipe, and length is more smaller than interior pipe evaporator section.
5, interior pipe evaporator section is inserted from the openend of outer tube, insert the back and do not contact and leave uniform gap between pipe and outer tube in guaranteeing, use welding procedure to be connected outside outer tube openend and the interior pipe.
6, use evacuation process to get rid of the air in the enclosure space between interior pipe and outer tube.Heat pipe type vacuum pipe with horizontal condensation segment completes.
7, use angle steel and steel plate to make the support and the supporting plate of solar water heater, and be welded into mounting system.
8, storage tank is placed on the support, sealing ring is placed in the hole of storage tank, the condensation segment of vacuum tube is inserted in the storage tank through sealing ring, the rotation vacuum pipe makes condensation segment parallel with the water storage tank wall then.Vacuum tube evaporator section lower end is positioned in the circular hole of supporting plate.
9, make the water of waiing upon heating be full of storage tank through the water inlet pipe on the storage tank.
Through preparation method described above, the heat pipe solar energy water-heater with horizontal condensation segment promptly machines.Water heater is positioned over the place and the orientation that can fully absorb solar energy, after after a while, can obtains hot water in the storage tank.
The solar water heater of the utility model has utilized absorbing coating to the high absorption efficiency of solar energy, the high heat-proof quality of vacuum tube, the high heat-transfer performance of heat pipe and the good heat transfer capacity between horizontal condensation segment and the water, utilizes solar energy to carry out producing of hot water.
Claims (2)
1. the heat pipe solar energy water-heater that has horizontal condensation segment; The vacuum tube, storage tank, sealing ring (2), supporting plate (4), support (5) and the water (7) that comprise have condensation segment (6) and evaporator section (3); Supporting plate is located on the support, is used for supporting the bottom of vacuum tube evaporator section, and the condensation segment of vacuum tube is the integral body that is communicated with the interior pipe of evaporator section; It is characterized in that condensation segment and evaporator section form the right angle; The condensation segment of said vacuum tube inserts in the storage tank through the hole on the water storage tank wall (1), and is parallel to the placement of water storage tank wall; Be provided with sealing ring between the hole of the condensation segment of said vacuum tube and water storage tank wall.
2. the heat pipe solar energy water-heater with horizontal condensation segment according to claim 1 is characterized in that, the condensation segment of said vacuum tube is positioned at the bottom of storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120438050XU CN202382448U (en) | 2011-11-08 | 2011-11-08 | Heat tube type vacuum tube solar water heater with horizontal condensation sections |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120438050XU CN202382448U (en) | 2011-11-08 | 2011-11-08 | Heat tube type vacuum tube solar water heater with horizontal condensation sections |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202382448U true CN202382448U (en) | 2012-08-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120438050XU Expired - Fee Related CN202382448U (en) | 2011-11-08 | 2011-11-08 | Heat tube type vacuum tube solar water heater with horizontal condensation sections |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202382448U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855164A (en) * | 2019-03-06 | 2019-06-07 | 西安科技大学 | A kind of sky two medium solar energy heat distribution system of gas and water |
-
2011
- 2011-11-08 CN CN201120438050XU patent/CN202382448U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855164A (en) * | 2019-03-06 | 2019-06-07 | 西安科技大学 | A kind of sky two medium solar energy heat distribution system of gas and water |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120815 Termination date: 20141108 |
|
| EXPY | Termination of patent right or utility model |