US20080115780A1 - Solar energy heat collector - Google Patents

Solar energy heat collector Download PDF

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Publication number
US20080115780A1
US20080115780A1 US11/603,135 US60313506A US2008115780A1 US 20080115780 A1 US20080115780 A1 US 20080115780A1 US 60313506 A US60313506 A US 60313506A US 2008115780 A1 US2008115780 A1 US 2008115780A1
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United States
Prior art keywords
ducts
heat collection
solar energy
fastening
branch water
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Abandoned
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US11/603,135
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Chih-Ru Lin
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Individual
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Individual
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Priority to US11/603,135 priority Critical patent/US20080115780A1/en
Publication of US20080115780A1 publication Critical patent/US20080115780A1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00—Solar heat collectors using working fluids
    • F24S10/70—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits
    • F24S10/75—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits with enlarged surfaces, e.g. with protrusions or corrugations
    • F24S10/753—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits with enlarged surfaces, e.g. with protrusions or corrugations the conduits being parallel to each other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S60/00—Arrangements for storing heat collected by solar heat collectors
    • F24S60/30—Arrangements for storing heat collected by solar heat collectors storing heat in liquids
    • 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

Definitions

  • the present invention relates to a solar energy heat collector and particularly to an improved solar energy heat collector that has bent heat collection plates connecting in series to form a firmer and more durable structure.
  • a conventional heat collector 1 includes two water transport ducts 11 and 12 , a plurality of branch water ducts 13 and a plurality of heat collection plates 14 and 14 a .
  • the water transport ducts 11 and 12 are located on two sides of the heat collector 1 .
  • One water transport duct 11 has a plurality of fastening holes 110 on one side facing the other water transport duct 12 .
  • the other water transport duct 12 also is constructed likewise.
  • the branch water ducts 13 have two ends soldering to the fastening holes 110 of the water transport ducts 11 and 12 .
  • the heat collection plates 14 and 14 a have respectively a holding portion 140 on an upper surface to be bonded to the lower side of each branch water duct 13 .
  • the heat collection plates 14 and 14 a , and the branch water ducts 13 are coupled by soldering.
  • the heat collection plate 14 is connected to the neighboring heat collection plate 14 a in series.
  • the connecting portion of the heat collection plates 14 and 14 a mostly does not have a firm fastening structure. Hence when the connecting portions of the branch water ducts 13 and the heat collection plates 14 and 14 a are damaged or form cracks due to heat expansion or cold contraction or other external factors, the heat collection plates 14 and 14 a cannot be maintained at desired fixed locations. This is the main cause of the solar energy heat collector 1 being not able to achieve the optimum effect.
  • the primary object of the present invention is to provide an improved solar energy heat collector that has a firmer structure and greater durability.
  • the solar energy heat collector of the invention includes two water transport ducts, a plurality of branch water ducts and a plurality of heat collection plates.
  • the water transport ducts are located on two sides of the heat collector and bridged by the branch water ducts.
  • Each of the heat collection plates has a holding portion and fastening portions to bond to the lower side of the branch water ducts.
  • the holding portion is formed on an upper surface of the heat collection plate by concaving downwards.
  • the fastening portions are located on two sides of the holding portion.
  • the fastening portion on one side is formed by bending the heat collection plate upwards, while the fastening portion on the other side is formed by bending the heat collection plate downwards to be bonded to the upward bending fastening portion of a neighboring heat collector in series by soldering.
  • the branch water ducts and the heat collection plates can be fastened together firmly.
  • the solar energy heat collector of the invention set forth above can achieve the following effects;
  • FIG. 1 is a perspective view of a conventional heat collector.
  • FIG. 2 is a sectional view of the branch water ducts and heat collection plates of a conventional heat collector.
  • FIG. 3 is a perspective view of the present invention.
  • FIG. 4 is a sectional view of the branch water ducts and heat collection plates of the present invention.
  • the solar energy heat collector 2 includes at least two water transport ducts 21 and 22 , a plurality of branch water ducts 23 and a plurality of heat collection plates 24 and 24 a .
  • the water transport ducts 21 and 22 are located on two sides the solar energy heat collector 2 for water intake and discharge.
  • the branch water ducts 23 bridge the two water transport ducts 21 and 22 to receive water from the water intake duct 21 that is heated by solar energy to a higher temperature, then is sent through the water discharge duct 22 on other side to a water tank 20 at a upper side of the solar energy heat collector 2 to be delivered to users.
  • the water transport ducts 21 and 22 are located on two sides of the heat collector 2 .
  • the water intake duct 21 has a plurality of fastening holes 210 on one side facing the water discharge duct 22 that are coupled with two ends of the branch water ducts 23 which are fastened to the water transport ducts 21 and 22 by soldering so that water from the water transport duct 21 can be distributed to the branch water ducts 23 .
  • the two ends of the branch water ducts 23 have undulant portions 230 to be coupled with the fastening holes 210 for fastening the branch water ducts 23 to the water transport ducts 21 and 22 at the coupling junctures by soldering.
  • the undulant portions 230 can prevent the branch water ducts 23 from breaking away from the water transport ducts 21 and 22 caused by heat expansion and cold retraction. Fastened by soldering also can reduce on site installation time.
  • the heat collection plates 24 and 24 a are a thin plate, and have a downward concave holding portion 240 to be bonded to a lower side of the branch water ducts 23 .
  • Each of the heat collection plates 24 and 24 a further has fastening portions 241 and 242 on two sides of the holding portion 240 bending respectively upwards and downwards in a parallel manner.
  • the holding portion 240 is bonded to the lower side of the branch water duct 23 .
  • the fastening portions 241 and 242 of one heat collection plate 24 can be coupled with the corresponding fastening portions of the neighboring heat collection plate 24 a to form a series connection in a up and down overlapping manner.
  • the bonding juncture of the branch water ducts 23 and the heat collection plates 24 and 24 a , and the coupling portion of the fastening portions 241 and 242 of the heat collection plates 24 and 24 a are fastened by soldering. Fastening of the heat collection plates 24 and 24 a also may be done through fastening elements such as screws, rivets or the like.
  • the heat collection plates 24 and 24 a can absorb solar energy more effectively to heat the water in the branch water ducts 23 .
  • the firmness of the solar energy heat collector 2 also increases.
  • the fastening portions 241 and 242 of the heat collection plates 24 and 24 a are formed by bending two sides of the holding portion 240 , and are coupled in series with the corresponding counterparts of the neighboring heat collection plates by soldering. With the lower side of the branch water ducts 23 bonding to heat collection plates, coupling of the heat collection plates 24 and 24 a and the branch water ducts 23 is much stronger.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)

Abstract

A solar energy heat collector includes two water transport ducts, a plurality of branch water ducts and heat collection plates. The water transport ducts are located on two sides of the heat collector having two opposing sides with a plurality of fastening holes formed thereon to be coupled with two ends of the branch water ducts by soldering. Each of the heat collection plates has an upper side with a downward concaved holding portion formed thereon and fastening portions on two sides. One fastening portion on one side is bent upwards and another on another side is bent downwards. The holding portion is bonded to a lower side of the branch water duct, and the connection juncture of the branch water duct and the heat collection plate is fastened by soldering. The fastening portions are bonded and overlapped in series in an up and down manner and fastened by soldering.

Description

    FIELD OF THE INVENTION
  • The present invention relates to a solar energy heat collector and particularly to an improved solar energy heat collector that has bent heat collection plates connecting in series to form a firmer and more durable structure.
    • BACKGROUND OF THE INVENTION
  • The conventional heat collectors now on the market mostly heat water sent to the heat collectors through heat collection plates. Referring to FIGS. 1 and 2, a conventional heat collector 1 includes two water transport ducts 11 and 12, a plurality of branch water ducts 13 and a plurality of heat collection plates 14 and 14 a. The water transport ducts 11 and 12 are located on two sides of the heat collector 1. One water transport duct 11 has a plurality of fastening holes 110 on one side facing the other water transport duct 12. The other water transport duct 12 also is constructed likewise. The branch water ducts 13 have two ends soldering to the fastening holes 110 of the water transport ducts 11 and 12. The heat collection plates 14 and 14 a have respectively a holding portion 140 on an upper surface to be bonded to the lower side of each branch water duct 13. The heat collection plates 14 and 14 a, and the branch water ducts 13 are coupled by soldering. The heat collection plate 14 is connected to the neighboring heat collection plate 14 a in series.
  • The connecting portion of the heat collection plates 14 and 14 a mostly does not have a firm fastening structure. Hence when the connecting portions of the branch water ducts 13 and the heat collection plates 14 and 14 a are damaged or form cracks due to heat expansion or cold contraction or other external factors, the heat collection plates 14 and 14 a cannot be maintained at desired fixed locations. This is the main cause of the solar energy heat collector 1 being not able to achieve the optimum effect.
    • SUMMARY OF THE INVENTION
  • Therefore the primary object of the present invention is to provide an improved solar energy heat collector that has a firmer structure and greater durability.
  • To achieve the foregoing object, the solar energy heat collector of the invention includes two water transport ducts, a plurality of branch water ducts and a plurality of heat collection plates. The water transport ducts are located on two sides of the heat collector and bridged by the branch water ducts. Each of the heat collection plates has a holding portion and fastening portions to bond to the lower side of the branch water ducts. The holding portion is formed on an upper surface of the heat collection plate by concaving downwards. The fastening portions are located on two sides of the holding portion. The fastening portion on one side is formed by bending the heat collection plate upwards, while the fastening portion on the other side is formed by bending the heat collection plate downwards to be bonded to the upward bending fastening portion of a neighboring heat collector in series by soldering. Thus the branch water ducts and the heat collection plates can be fastened together firmly.
  • The solar energy heat collector of the invention set forth above can achieve the following effects;
  • 1. Firm structure: As the upper surface of the heat collection plate has a holding portion concaved downwards, and the fastening portions on two sides of the holding portion are bent respectively upwards and downwards, after the heat collection plate has bonded to the lower side of the branch water duct, two neighboring heat collection plates can be coupled together by bonding the fastening portions in a up and down overlapping manner, and soldering fastening can be applied to two sides of the overlapping portion. Moreover, the juncture of the heat collection plate and the branch water duct may also be soldered to make the structure firmer.
  • 2. Enhanced durability: With the upper surface of the heat collection plate having a holding portion concaved downwards, and the fastening portions on two sides of the holding portion bending respectively upwards and downwards, after the heat collection plate has bonded to the lower side of the branch water duct, two neighboring heat collection plates can be coupled together by bonding the fastening portions in a up and down overlapping manner, and soldering can be applied on the juncture of the branch water duct and the heat collection plate, and on bonding portion of the fastening portions to enhance durability.
  • The foregoing, as well as additional objects, features and advantages of the invention will be more readily apparent from the following detailed description, which proceeds with reference to the accompanying drawings.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a perspective view of a conventional heat collector.
  • FIG. 2 is a sectional view of the branch water ducts and heat collection plates of a conventional heat collector.
  • FIG. 3 is a perspective view of the present invention.
  • FIG. 4 is a sectional view of the branch water ducts and heat collection plates of the present invention.
    •  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
  • Please refer to FIGS. 3 and 4, the solar energy heat collector 2 according to the invention includes at least two water transport ducts 21 and 22, a plurality of branch water ducts 23 and a plurality of heat collection plates 24 and 24 a. The water transport ducts 21 and 22 are located on two sides the solar energy heat collector 2 for water intake and discharge. The branch water ducts 23 bridge the two water transport ducts 21 and 22 to receive water from the water intake duct 21 that is heated by solar energy to a higher temperature, then is sent through the water discharge duct 22 on other side to a water tank 20 at a upper side of the solar energy heat collector 2 to be delivered to users.
  • The water transport ducts 21 and 22 are located on two sides of the heat collector 2. The water intake duct 21 has a plurality of fastening holes 210 on one side facing the water discharge duct 22 that are coupled with two ends of the branch water ducts 23 which are fastened to the water transport ducts 21 and 22 by soldering so that water from the water transport duct 21 can be distributed to the branch water ducts 23.
  • The two ends of the branch water ducts 23 have undulant portions 230 to be coupled with the fastening holes 210 for fastening the branch water ducts 23 to the water transport ducts 21 and 22 at the coupling junctures by soldering. The undulant portions 230 can prevent the branch water ducts 23 from breaking away from the water transport ducts 21 and 22 caused by heat expansion and cold retraction. Fastened by soldering also can reduce on site installation time.
  • The heat collection plates 24 and 24 a are a thin plate, and have a downward concave holding portion 240 to be bonded to a lower side of the branch water ducts 23. Each of the heat collection plates 24 and 24 a further has fastening portions 241 and 242 on two sides of the holding portion 240 bending respectively upwards and downwards in a parallel manner. The holding portion 240 is bonded to the lower side of the branch water duct 23. The fastening portions 241 and 242 of one heat collection plate 24 can be coupled with the corresponding fastening portions of the neighboring heat collection plate 24 a to form a series connection in a up and down overlapping manner. The bonding juncture of the branch water ducts 23 and the heat collection plates 24 and 24 a, and the coupling portion of the fastening portions 241 and 242 of the heat collection plates 24 and 24 a are fastened by soldering. Fastening of the heat collection plates 24 and 24 a also may be done through fastening elements such as screws, rivets or the like.
  • As the water transport ducts 21 and 22 and the two ends of the branch water ducts 23 are fastened by soldering, and the two ends of the branch water ducts 23 have the undulant portions 230, hence heat extension and cold retraction of the branch water ducts 23 caused by sunshine and rain cooling can be alleviated. As a result, the firmness of the branch water ducts 23 and water transport ducts 21 and 22 is enhanced.
  • Moreover, as the upper surface of the heat collection plates 24 and 24 a has the downward holding portion 240 to be bonded to the lower side of the branch water ducts 23, and bending upward and downward fastening portions 241 and 242 on two sides in a parallel manner, the heat collection plates 24 and 24 a can absorb solar energy more effectively to heat the water in the branch water ducts 23. With the heat collection plates 24 and 24 a fastened to the branch water ducts 23 by soldering, the firmness of the solar energy heat collector 2 also increases.
  • In addition, the fastening portions 241 and 242 of the heat collection plates 24 and 24 a are formed by bending two sides of the holding portion 240, and are coupled in series with the corresponding counterparts of the neighboring heat collection plates by soldering. With the lower side of the branch water ducts 23 bonding to heat collection plates, coupling of the heat collection plates 24 and 24 a and the branch water ducts 23 is much stronger.

Claims (4)

1. A solar energy heat collector, comprising at least:
two water transport ducts which are located on two sides of the solar energy heat collector and have two opposing sides each has a plurality of fastening holes formed thereon;
a plurality of branch water ducts each having two ends with undulant portions formed thereon to be coupled with the fastening holes of the two water transport ducts and fastened by soldering; and
a plurality of heat collection plates each having an upper side bending downwards to form a holding portion corresponding to and fastened to a lower side of the branch water duct by soldering, the holding portion having one side bending upwards in a parallel manner and another side bending downwards in a parallel manner to form to fastening portions, the fastening portions of neighboring heat collection plates being bonded together in series.
2. The solar energy heat collector of claim 1, wherein the series bonding of the fastening portions of the neighboring heat collection plates is done by soldering.
3. The solar energy heat collector of claim 1, wherein the series bonding of the fastening portions of the neighboring heat collection plates is done through fastening elements.
4. The solar energy heat collector of claim 3, wherein the fastening elements are screws or rivets.
US11/603,135 2006-11-22 2006-11-22 Solar energy heat collector Abandoned US20080115780A1 (en)

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Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3384167A (en) * 1967-04-03 1968-05-21 Javkin Simon Band for heat exchange
US4086913A (en) * 1976-12-15 1978-05-02 Grumman Aerospace Corporation Solar heat collector construction
US4115598A (en) * 1975-11-07 1978-09-19 Lever Brothers Company Phase inverting low fat spreads
US4131110A (en) * 1977-01-06 1978-12-26 Jones Jr J Paul Solar energy absorber
US4148296A (en) * 1977-11-28 1979-04-10 Philip Parlato Solar heating apparatus and mounting therefor
US4241727A (en) * 1978-11-06 1980-12-30 Toti Andrew J Structural assembly, method of forming same, and elongated panel structure resulting therefrom
US4258703A (en) * 1977-10-14 1981-03-31 Reitmaier L Kg Roof and wall covering
US4299204A (en) * 1980-05-21 1981-11-10 Cotsworth John L Solar collector
US4359043A (en) * 1979-04-27 1982-11-16 Gazel Dominique Roofing member for collecting solar energy
US4426998A (en) * 1982-03-29 1984-01-24 Thermatool Corp. Solar collector unit for roof or wall mounting
US4738247A (en) * 1984-11-01 1988-04-19 Moore Barrie P Roof installations
US7013887B2 (en) * 2002-07-08 2006-03-21 Schott Ag Absorber pipe for solar heating applications

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3384167A (en) * 1967-04-03 1968-05-21 Javkin Simon Band for heat exchange
US4115598A (en) * 1975-11-07 1978-09-19 Lever Brothers Company Phase inverting low fat spreads
US4086913A (en) * 1976-12-15 1978-05-02 Grumman Aerospace Corporation Solar heat collector construction
US4131110A (en) * 1977-01-06 1978-12-26 Jones Jr J Paul Solar energy absorber
US4258703A (en) * 1977-10-14 1981-03-31 Reitmaier L Kg Roof and wall covering
US4148296A (en) * 1977-11-28 1979-04-10 Philip Parlato Solar heating apparatus and mounting therefor
US4241727A (en) * 1978-11-06 1980-12-30 Toti Andrew J Structural assembly, method of forming same, and elongated panel structure resulting therefrom
US4359043A (en) * 1979-04-27 1982-11-16 Gazel Dominique Roofing member for collecting solar energy
US4299204A (en) * 1980-05-21 1981-11-10 Cotsworth John L Solar collector
US4426998A (en) * 1982-03-29 1984-01-24 Thermatool Corp. Solar collector unit for roof or wall mounting
US4738247A (en) * 1984-11-01 1988-04-19 Moore Barrie P Roof installations
US7013887B2 (en) * 2002-07-08 2006-03-21 Schott Ag Absorber pipe for solar heating applications

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