CN102901242A - Double-coil pipe solar heat collector - Google Patents

Double-coil pipe solar heat collector Download PDF

Info

Publication number
CN102901242A
CN102901242A CN201210454924XA CN201210454924A CN102901242A CN 102901242 A CN102901242 A CN 102901242A CN 201210454924X A CN201210454924X A CN 201210454924XA CN 201210454924 A CN201210454924 A CN 201210454924A CN 102901242 A CN102901242 A CN 102901242A
Authority
CN
China
Prior art keywords
heat
coiled pipe
tube
bifilar
collector
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.)
Pending
Application number
CN201210454924XA
Other languages
Chinese (zh)
Inventor
徐少凡
朱彩云
李进
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHENJIANG QIZHENG NEW ENERGY CO Ltd
Original Assignee
ZHENJIANG QIZHENG NEW ENERGY CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ZHENJIANG QIZHENG NEW ENERGY CO Ltd filed Critical ZHENJIANG QIZHENG NEW ENERGY CO Ltd
Priority to CN201210454924XA priority Critical patent/CN102901242A/en
Publication of CN102901242A publication Critical patent/CN102901242A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/44Heat exchange systems

Abstract

The invention discloses a solar heat collector, which is characterized in that heat conducting medium with a boiling point of 30-50 DEG C is filled in two copper pipes welded on the back of a heat collecting plate, and the two copper pipes are bent to double coil pipes to improve the distribution density of pipes on the heat absorption plate and improve the heat utilization rate of the heat absorption plate.

Description

Two coiled pipe solar thermal collectors
Technical field
The present invention relates to solar energy heat utilization field, refer in particular to a kind of absorber and adopt two copper pipes to do snakelike coiling and be welded on the solar thermal collector that absorber plate consists of later.
Background technology
Solar water heater is that a kind of solar energy that utilizes is as the helioplant of energy sources for heating water or heat transfer medium.The most representative with vacuum tube type solar energy water heater and plate solar water heater in the existing solar water heater product.The vacuum tube collector heat sink is vacuum tube, and heat loss is little.Compare the advantage such as that the plate type solar water heater has is simple in structure, the sunlight footprint is large, seal request is low, it is antifreeze not need, working medium is cheap, response is fast with the vacuum tube type solar energy water heater.But also there are the shortcomings such as heat loss is large, collecting efficiency is low.How further to improve the collecting efficiency of solar water heater, be the target that the scientific research personnel pursues always.
The plate type solar water heater mainly is comprised of transparent cover plate, absorber plate, copper pipe, insulation shell four parts.During work, the absorber plate that scribbles coating for selective absorption is converted into heat energy with solar radiation, and heat is passed to the medium that flows in the copper pipe by heat conduction.Existing flat-plate solar collector uses the acetone that is mixed with part water or ethylene glycol as heat-conducting medium, because dielectric viscosity is higher, causes flowing not smooth, and heat exchange efficiency is lower.
For addressing this problem, can adopt the lower heat-conducting medium of boiling point, make medium in the inner heat absorption vaporization of copper pipe, become and hold runny air-flow, bring heat into water tank.Simultaneously since the latent heat of vaporization of medium much larger than sensible heat, the ability of transfer of heat is higher.And the space between the existing coiled pipe solar water heater copper pipe is excessive, so that there is 40% heat in time to utilize, address this problem, and tube pitch need to be reduced about 50%.
Summary of the invention
The purpose that the present invention proposes is further to increase the pipe distribution density, improve the thermal efficiency of solar thermal collector, for reaching this purpose, the copper pipe inside that collecting plate welds behind is filled with boiling point at 30 to 50 ℃ heat-conducting medium, and adopt two copper pipes to do serpentine bend, reduce tube pitch.
For achieving the above object, the present invention adopts following technical scheme: solar thermal collector is comprised of insulation shell, absorber plate, transparent cover plate, bifilar coiled pipe, ascending tube, return duct, it is characterized in that: bifilar coiled pipe is formed by two copper pipe bendings, the copper pipe horizontal curvature is put, tube pitch is between 5 to 7cm, the upper end of bifilar coiled pipe collects in ascending tube, and the lower end collects in return duct.The sectional area of ascending tube and return duct is 2 times of bifilar coiled pipe, and tube interior is filled with the heat-conducting medium of boiling point about 30 ℃.
The present invention has compared three advantages with traditional flat-plate solar collector: the one, use low-boiling heat-conducting medium, and make heat-conducting mode become the latent heat circulating heat conduction by the sensible heat circulating heat conduction, the phase transition process of medium makes circulation rapider, and the heat transfer rate is faster; The 2nd, the boiling point of medium is lower, makes heat collector have cold-starting and freezing tolerance, and makes heat collector when operation temperature lower, has reduced heat leakage; The 3rd, adopt bifilar coiled pipe to increase the pipe distribution density, increased the utilization rate of absorber plate heat.
Description of drawings
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is the schematic appearance of this heat collector.
Fig. 2 is this heat collector A-A profile.
Fig. 3 is this heat collector heat absorbing part back view.
The position of marking is respectively among the figure: 1, insulation shell; 2, transparent cover plate; 3, bifilar coiled pipe; 4, absorber plate; 5, ascending tube; 6, return duct.
The specific embodiment
Below in conjunction with accompanying drawing, embodiments of the present invention are explained.
Absorber plate 4 fronts are coated with coating for selective absorption, absorb sunlight and are converted into heat energy, heat bifilar coiled pipe 3.The heat-conducting medium heat absorption vaporization of bifilar coiled pipe 3 inside, pressure raises, and flows into rapidly the heat abstractor of supporting heat storage water tank inside from ascending tube 5, becomes liquid after the medium condensation and flows back to bifilar coiled pipe 3 from return duct 6, finishes heat transfer cycle.

Claims (2)

1. two coiled pipe solar thermal collector, this heat collector is comprised of insulation shell (1), transparent cover plate (2), bifilar coiled pipe (3), absorber plate (4), ascending tube (5), return duct (6), it is characterized in that: bifilar coiled pipe (3) is formed by two copper pipe bendings, the copper pipe horizontal curvature is put, tube pitch is between 5 to 7cm, the upper end of bifilar coiled pipe (3) collects in ascending tube (5), and the lower end collects in return duct (6).
2. according to claim 1 pair of coiled pipe solar thermal collector, it is characterized in that: the sectional area of ascending tube (5) and return duct (6) is 2 times of bifilar coiled pipe (3), and tube interior is filled with the heat-conducting medium of boiling point about 30 ℃.
CN201210454924XA 2012-11-14 2012-11-14 Double-coil pipe solar heat collector Pending CN102901242A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210454924XA CN102901242A (en) 2012-11-14 2012-11-14 Double-coil pipe solar heat collector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210454924XA CN102901242A (en) 2012-11-14 2012-11-14 Double-coil pipe solar heat collector

Publications (1)

Publication Number Publication Date
CN102901242A true CN102901242A (en) 2013-01-30

Family

ID=47573620

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210454924XA Pending CN102901242A (en) 2012-11-14 2012-11-14 Double-coil pipe solar heat collector

Country Status (1)

Country Link
CN (1) CN102901242A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103216954A (en) * 2013-04-26 2013-07-24 江苏七政新能源有限公司 Wrapped solar water heater
CN103234285A (en) * 2013-04-26 2013-08-07 江苏七政新能源有限公司 Wave-shaped solar water heater
CN103234282A (en) * 2013-04-26 2013-08-07 江苏七政新能源有限公司 Flat plate-shaped solar energy water heater group

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10011052A1 (en) * 2000-03-07 2002-04-04 Sack Robert Solar collector has parabolic channel which fills out surface of molded piece covered by transparent plate and pipeline conducting medium is covered
CN201081442Y (en) * 2007-07-19 2008-07-02 罗树臣 Thermotube plate type split passive high-efficiency solar heat hot water system
DE202009006077U1 (en) * 2009-04-22 2009-09-10 Schmid-Rapp, Beate Flat collector with safety glass cover for water heating of chlorine and saline water in the swimming pool u. whirlpool
CN101825345A (en) * 2010-05-13 2010-09-08 铜陵市清华宝能源设备有限责任公司 Antifreezing method of flat plate solar water heater
CN201672709U (en) * 2010-05-22 2010-12-15 浙江梅地亚新能源科技有限公司 Serpentine pipe type flat plate solar collector
DE202010015366U1 (en) * 2010-11-11 2011-01-20 Robert Bosch Gmbh Solar thermal absorber
CN201811456U (en) * 2010-07-15 2011-04-27 杨宪杰 S-shaped inclined heat absorption flow passage of balcony-type flat panel solar heat collector
CN102679575A (en) * 2012-04-27 2012-09-19 镇江新梦溪能源科技有限公司 Flat-plate solar water heater with snakelike flow passage

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10011052A1 (en) * 2000-03-07 2002-04-04 Sack Robert Solar collector has parabolic channel which fills out surface of molded piece covered by transparent plate and pipeline conducting medium is covered
CN201081442Y (en) * 2007-07-19 2008-07-02 罗树臣 Thermotube plate type split passive high-efficiency solar heat hot water system
DE202009006077U1 (en) * 2009-04-22 2009-09-10 Schmid-Rapp, Beate Flat collector with safety glass cover for water heating of chlorine and saline water in the swimming pool u. whirlpool
CN101825345A (en) * 2010-05-13 2010-09-08 铜陵市清华宝能源设备有限责任公司 Antifreezing method of flat plate solar water heater
CN201672709U (en) * 2010-05-22 2010-12-15 浙江梅地亚新能源科技有限公司 Serpentine pipe type flat plate solar collector
CN201811456U (en) * 2010-07-15 2011-04-27 杨宪杰 S-shaped inclined heat absorption flow passage of balcony-type flat panel solar heat collector
DE202010015366U1 (en) * 2010-11-11 2011-01-20 Robert Bosch Gmbh Solar thermal absorber
CN102679575A (en) * 2012-04-27 2012-09-19 镇江新梦溪能源科技有限公司 Flat-plate solar water heater with snakelike flow passage

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103216954A (en) * 2013-04-26 2013-07-24 江苏七政新能源有限公司 Wrapped solar water heater
CN103234285A (en) * 2013-04-26 2013-08-07 江苏七政新能源有限公司 Wave-shaped solar water heater
CN103234282A (en) * 2013-04-26 2013-08-07 江苏七政新能源有限公司 Flat plate-shaped solar energy water heater group

Similar Documents

Publication Publication Date Title
Jamar et al. A review of water heating system for solar energy applications
CN201652856U (en) High-efficiency solar heat collecting and storing device
CN103697603B (en) Solar high-efficiency dual temperature phase-change collector and phase-change material for collector
CN102563908B (en) Solar heat collecting device
CN201954784U (en) Gas-liquid double-phase plate type solar heat collector with double illuminated surfaces
CN102901242A (en) Double-coil pipe solar heat collector
CN102914056A (en) Solar water heater
CN202419972U (en) Square-pipe-type solar heat collector
CN201463326U (en) Combined solar gas-liquid heat collector
CN107218734A (en) A kind of solar powered heating cooling combined supply system
CN204313506U (en) A kind of solar superconducting heat pipe
CN102901239A (en) Solar water heater
CN203671945U (en) Solar water heater
CN202836290U (en) Thermotube used for solar thermal collector
CN203797975U (en) Flat-plate phase change thermal storage heat collector with vacuum cover plate
CN104676568A (en) Steam generator and steam generation system based on line focusing solar heat collection
CN204534504U (en) Based on steam generator and the steam generating system of line-focusing solar thermal-arrest
CN102901240A (en) Solar water heater
CN104964467A (en) Coated latent heat circulation solar water heater
CN103743123A (en) Solar water heater
CN204115265U (en) A kind of heat pipe type flat plate solar collector
CN201417034Y (en) Solar energy collector
CN103216954A (en) Wrapped solar water heater
CN204329356U (en) Novel solar water heater
CN105650897A (en) Solar instantaneous water-based phase change heat accumulator

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20130130