CN100565033C - Solar energy point focusing heat exchanger - Google Patents

Solar energy point focusing heat exchanger Download PDF

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Publication number
CN100565033C
CN100565033C CNB200810045649XA CN200810045649A CN100565033C CN 100565033 C CN100565033 C CN 100565033C CN B200810045649X A CNB200810045649X A CN B200810045649XA CN 200810045649 A CN200810045649 A CN 200810045649A CN 100565033 C CN100565033 C CN 100565033C
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CN
China
Prior art keywords
heat
rotating shaft
mount pad
solar energy
working medium
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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
Application number
CNB200810045649XA
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Chinese (zh)
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CN101324377A (en
Inventor
吴耀琪
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Zhongke Baineng Technology Co., Ltd.
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吴耀琪
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Priority to CNB200810045649XA priority Critical patent/CN100565033C/en
Publication of CN101324377A publication Critical patent/CN101324377A/en
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Publication of CN100565033C publication Critical patent/CN100565033C/en
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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
    • 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
    • Y02E10/47—Mountings or tracking

Abstract

Solar energy point focusing heat exchanger of the present invention solves existing apparatus structure complexity, cost height, the problem that working medium is limited.Heat exchanger (17) is connected by connector (15) and frame (13), one end of azimuth rotating shaft (23) is connected with the output shaft of bidirectional drive (19), bidirectional drive (19) is positioned on the mount pad (32), mount pad (32) is connected with frame (13), the other end of azimuth rotating shaft (23) cooperates with bearing (25) on the connector that is positioned at elevation rotating shaft (24) (28), elevation rotating shaft (24) cooperates with bearing (25) on the support (13), the housing inner chamber interlayer (20) of heat exchanger (17) is divided into heat collector cavity (1) and heat exchanging chamber (4) with it, there is heat pipe (3) to pass interlayer (20) in the heat exchanging chamber (4) and enters heat collector cavity (1), heat exchanging chamber (4) has working medium input pipe (10) and working medium efferent duct (9), heat collector cavity (1) has transmission mouth (12), and solar energy collectors (14) are positioned on the installing plate (26) in the azimuth rotating shaft (23).

Description

Solar energy point focusing heat exchanger
Technical field:
The present invention with utilize solar device relevant, especially relevant with the solar energy point focusing indirect heat exchange.
Background technology:
The shell interlayer of existing solar energy point focusing heat exchanger has cold air channel to flow out from the heat collector cavity outlet after Jiao's hot chamber inlet focal position place's heat exchange through the inner casing interlayer.The flow channel shape complexity, the manufacturing cost height will be through the focal position because of heat-exchange working medium, and necessary energy printing opacity can only be with air as working medium.Because the heat exchange zone concentrates on the high-temperature region at focal position place, the high-temperature region surface area is very little, the high-temperature region be burnt hot chamber also be heat exchanging chamber, both overlap, heat exchange efficiency is difficult to improve.
Summary of the invention:
The object of the invention provides a kind of simple in structure, and low cost of manufacture is applied widely, the solar energy point focusing heat exchanger that heat exchange efficiency is high.
The present invention is achieved in that
Solar energy collectors 14 of the present invention are connected with azimuth rotating shaft 23, heat exchanger 17 is connected by connector 15 and frame 13, one end of azimuth rotating shaft 23 is connected with the output shaft of bidirectional drive 19, bidirectional drive 19 is positioned on the mount pad 32, mount pad 32 is connected with frame 13, the other end of azimuth rotating shaft 23 cooperates with bearing 25 on the connector 28 that is positioned at elevation rotating shaft 24, elevation rotating shaft 24 cooperates with bearing 25 on the frame 13, the housing inner chamber interlayer 20 of heat exchanger 17 is divided into heat collector cavity 1 and heat exchanging chamber 4 with it, there is heat pipe 3 to pass interlayer 20 in the heat exchanging chamber 4 and enters heat collector cavity 1, heat exchanging chamber 4 has working medium input pipe 10 and working medium efferent duct 9, heat collector cavity 1 has transmission mouth 12, solar energy collectors 14 are positioned on the installing plate 26 in the azimuth rotating shaft 23, and the focus of the mirror surface of solar energy collectors 14 is positioned at heat collector cavity 1.There is thermal-arrest head 2 termination that heat pipe 3 is positioned at heat collector cavity 1, be positioned on the body of heat exchanging chamber heat exchange fin or pin 5 are arranged, thermal-arrest head 2 is a cone, its bottom surface over against tubaeform transmission mouth 12 is a curved surface 21, there are some thermal-arrest pin 22 bunchys to arrange that the focus of the mirror surface of solar energy collectors 14 is positioned at thermal-arrest pin bundle on the curved surface 21.
The housing of heat exchanger 17 is made up of shell 8, thermal insulation layer 7 and inner casing 6, and inner casing 6 is a ceramic structure, and working medium input pipe 10 is in heat exchanging chamber bottom radial arrangement, dynamic device 11, and working medium efferent duct 9 is arranged at the heat exchanging chamber top axial.
Solar energy point focusing heat exchanger is formed array, and all working medium efferent ducts 9 are connected with same thermal-collecting tube 18.
There is first motor 30 to be in transmission connection with power transmission shaft 34 in the housing 33 of bidirectional drive 19 by first decelerator 31, power transmission shaft 34 is connected with azimuth rotating shaft 23 by shaft coupling 37, housing 33 is positioned on the mount pad 32, have second motor 38 to be in transmission connection by second decelerator 39 and vertical mobile device on the chassis of mount pad 32, the vertical moving member 42 of vertical mobile device contacts with housing 33.
Aspect sensor 35 has two check-out consoles, first check-out console is installed in the azimuth rotating shaft 23, second check-out console is installed on the elevation rotating shaft 24, the output of first check-out console is connected with first motor 30 through signal controller 36, and the output of second check-out console is connected with second motor 38 through signal controller 36.
Said vertical mobile device is worm gearing or screw-drive mechanism.
The vertical moving member 42 of said screw-drive mechanism is the swivel nut threaded engagement that is connected on screw rod and the mount pad 32, screw rod endwisely slips and circumferentially is rotatably assorted by the feather key and first bevel gear 41, second bevel gear engagement on the first umbrella tooth 41 and second decelerator, 39 output shafts, first bevel gear 41 is connected on the mount pad 32 rotationally.
There is first motor 30 to be in transmission connection with power transmission shaft 34 in the housing 33 of bidirectional drive 19 by first decelerator 31, power transmission shaft 34 is connected with azimuth rotating shaft 23, housing 33 is positioned on the mount pad 32, mount pad 32 has horizontal rotating disc to be connected with vertical screw flight, and the upper end of vertical screw rod contacts with the base plate of housing 33.
The present invention is simple in structure, low cost of manufacture.Thermal-arrest control and heat exchanging chamber are provided with respectively, and the thermal-arrest head is positioned at the working medium that heat collector cavity is convenient to collect the heat of high-temperature region, focus place and is passed to heat exchanging chamber immediately.Because heat-exchange working medium does not enter focus area, the liquid state that can adopt multiple material to form, liquid one is solid-state, and gas one is solid-state, Gu a liquid one gaseous state mixed working fluid, working medium is not subjected to the restriction of printing opacity, the heat transfer efficiency height.
The thermal-arrest control utilizes width of cloth heat and conduction heat exchange, heat exchange efficiency height.Focus is positioned at the thermal-arrest pin bundle of solid space structure, and manufacturing and installation accuracy are less demanding, and cost is low.
Description of drawings:
Fig. 1 is a structure chart of the present invention.
Fig. 2 is rack construction figure.
Fig. 3 is heat exchanger structure figure.
Fig. 4 is the bidirectional drive structure chart.
Fig. 5 is array apparatus figure of the present invention.
The specific embodiment:
Mount pad 32 is arranged on the crossbeam of support 13, and bidirectional drive 19 is positioned in the groove of mount pad 32 by deadweight.One output shaft of bidirectional drive 19 is connected with azimuth rotating shaft 23 by shaft coupling, has bearing 25 to cooperate with elevation rotating shaft 24 on the support 13, and the bearing 25 on the connector 28 on the elevation rotating shaft 24 cooperates with azimuth rotating shaft 23.There is connector 26 to be connected in the azimuth rotating shaft 23 with solar energy collectors 14.
The housing of heat exchanger 17 is made up of shell 8, thermal insulation layer 7, ceramic structure inner casing 6.Its inner chamber has interlayer 20 that it is divided into heat collector cavity 1 and heat exchanging chamber 4.Have heat exchange fin 5 to be positioned at heat exchanging chamber on the main body of heat pipe 3, the one end passes interlayer 20 and is positioned at heat collector cavity 1, and there is thermal-arrest head 2 its end.Thermal-arrest head 2 is a cone, and its bottom surface is a curved surface 21, and the thermal-arrest pin 22 that is fixed with bunchy forms the thermal-arrest space.The focus of the mirror surface of solar energy collectors 14 is positioned at the thermal-arrest pin bundle of heat collector cavity.The heat collector cavity internal layer has reflecting coating, and reflecting coating is dope layer or is bonded in the interior reflective material layer of heat collector cavity.Heat collector cavity 1 has transmission mouth 12.Heat exchanging chamber 4 has working medium input pipe 10 and working medium efferent duct 9.Dynamic device 11 on the working medium input pipe 10.Working medium efferent duct 9 is connected with thermal-collecting tube 18.Some heat collectors are formed array.
Thermal-arrest head 2 and Jiao Re pin bundle are made by high-efficiency heat conduction material (metal, alloy or other formula materials), are made into curve form with the focus contact portion, and perhaps many curve forms are farthest to contact with the thermal source at focus place.
Heat exchange fin 5 can be sheet, also can be needle-like.Preferably be made into three-dimension curved surface or curve shape, to enlarge heat exchange area.
Thermal insulation layer 7 is made by high temperature resistant mineral are continuous, also can be other high temperature resistant heat insulation material.
Working medium can be gaseous state, also can be liquid, perhaps the solia particle attitude.And their mixing, combined form.Power set 11 can be fans, also can be pumps
The transmission mouth can directly expose, and also transparent material can be installed, and prevents that to play heat collector cavity is subjected to the effect of external contamination.
Solar energy point focusing indirect heat exchange proposed by the invention is achieved in that the energy process transmission mouth 12 that the solar energy point focusing heat collector converges, and the thermal-arrest focus is arranged in the space that the thermal-arrest pin bundle on the thermal-arrest head 2 constitutes, and the thermal-arrest head is arranged in heat collector cavity 1.Heat collector cavity is designed to small structure, makes the radiant heat of focus section try one's best not to external reflection.Like this, just make heat energy be transferred in the heat exchanging chamber 4 by heat pipe 3 through heat conduction and thermal radiation effect.Defeated hot working fluid is by working medium input pipe 10 and power set 11, and the input heat exchanging chamber fully contacts with heat exchange fin and to obtain heat energy, through working medium efferent duct 9 heat energy is transferred in the heat load.
Bidirectional drive constitutes by following:
19, bidirectional drive housing; 30, rotary electric machine; 31, rotate decelerator; 32, mount pad; 33, housing; 34, turning cylinder; 35, aspect sensor; 36, signal controller; 37, shaft coupling; 38, mobile motor; 39, mobile decelerator; 41, conical gear is right; 42, travel mechanism.
Rotary electric machine 30, rotation decelerator 31, signal controller 36 are installed on the bidirectional drive housing 19, and bidirectional drive 19 is arranged in the groove of mount pad 32.
Aspect sensor has two check-out consoles, and left and right sides balance detection plate is installed on the turning cylinder 23, and the anterior-posterior balance check-out console is installed on the turning cylinder 24.
Mobile motor 38, mobile decelerator 39, travel mechanism 42 are installed on the mount pad 32.Conical gear connects with mobile reducer output shaft one, and one is installed in the travel mechanism.
Travel mechanism 42 can be an electric screw mechanism, also can be the worm gear rackwork, also can be manual screw mechanism.
Shown in Figure 4 is electric screw mechanism.At this moment one of conical gear is installed on the screw rod, connects in the mode of feather key, makes screw rod when axially moving, and conical gear remains on the position that cooperates with another gear.
When travel mechanism was the worm gear rackwork, mobile motor drives worm gear made tooth bar move up and down.
When travel mechanism was man-operated mechanism, the title actuation mechanism was a screw mechanism, and rotating disk is installed on screw rod, and rotating rotating disk is that drive screw moves up and down.Scale is arranged, the position that indication is moved on the rotating disk.
The working method of aspect sensor is such:
Native system is a double-axis tracking, and the groundwork principle is detection and control two parts of uneven light:
1. detect:
The photo resistance of some is installed on the both sides of the surface plate of first and second check-out console, and is installed on respectively on azimuth rotating shaft 23 and the elevation rotating shaft 24 first and second check-out console is orthogonal.First check-out console is surveyed difference of longitude, and second check-out console is surveyed the latitude deviation.
When check-out console is parallel with light, the both sides balance of voltage, and when deviation is arranged, the both end voltage imbalance.By detect voltage promptly as can be known device be in advance or the hysteresis solar motion.、
2. control is carried out
Adopt single-chip microcomputer periodically to the level sampling of two check-out consoles after comparison circuit is handled, driving two motors at four road level situations turns round forward or backwards, simultaneously, incoming level is sampled, when the level variation occurring, corresponding motor rotation, when the both sides level was the same, motor stopped operating.
Aspect sensor and signal controller are matured product, can buy to the producer that produces the photovoltaic tracking device.
The present invention follows the tracks of sun's motion and is divided into two kinds of motions, with in the face of the present invention location, is divided into the motion of left and right sides balance exercise and anterior-posterior balance.Left and right sides balance realizes that by the motion of azimuth rotating shaft 23 anterior-posterior balance is realized by the rotation of elevation rotating shaft 24.Azimuth rotating shaft 23 is driven by rotary electric machine 30.Elevation rotating shaft 24 is driven by mobile motor, perhaps by hand drive (this is because the amount of spin of every day is less, can be according to the seasonal variations adjustment, the focusing error that is caused by this direction can be remedied by the structure of thermal-arrest head of the present invention).
Left and right sides balance is to realize like this.Control the installation site of the plate detecting sensor of this direction, be positioned at such plane,, and, be positioned at the one side of meeting light through the axis of azimuth rotating shaft 23 perpendicular to the axis of elevation rotating shaft 24.When left and right sides level that check-out console obtained not simultaneously, check-out console transmits the left and right sides control end of signal in the signal controller 36, being sent to motor 30 by signal controller just changes or the instruction of reversing.When left and right sides level is identical, send the instruction that stops operating.Motor 30 drives turning cylinder 34 by decelerator 31.Turning cylinder connects with azimuth rotating shaft 23 by shaft coupling 37.Azimuth rotating shaft 23 drives heat collector 14 and adjusts the angle of rotation of following the tracks of the sun.
Anterior-posterior balance is to realize like this.Control the erecting device of the plate detecting sensor of this direction, be positioned at such plane, perpendicular to the axis of azimuth rotating shaft 23, and the axis of process elevation rotating shaft 24, be positioned at the one side of meeting light.When check-out console obtained front and back level not simultaneously, check-out console transmits the front and back control end of signal in the signal controller 36, being sent to motor 38 by signal controller just changes or the instruction of reversing.When left and right sides level is identical, send the instruction that stops operating.Motor 38 is by decelerator 39, and conical gear drives mobile device 42 and moves up and down 41, and elevation rotating shaft 24 is rotated, and adjusts the position angle of following the tracks of the sun.
Because all there are error in machining accuracy and installation site, make actual focal position drift about.The present invention adopts such method to remedy the error of point focusing heat collector focus drifting.Constitute the heat conduction spaces with heat conduction pin palpus 22, the space that focus drifting constitutes is contained in this space, makes that focus heat energy is conducted.In addition, focus always is positioned at body heat chamber 1, by radiation theory, through thermal-arrest head 2 other heat is passed.

Claims (9)

1, solar energy point focusing heat exchanger, it is characterized in that heat exchanger (17) is connected by connector (15) and frame (13), one end of azimuth rotating shaft (23) is connected with the output shaft of bidirectional drive (19), bidirectional drive (19) is positioned on the mount pad (32), mount pad (32) is connected with frame (13), the other end of azimuth rotating shaft (23) cooperates with clutch shaft bearing (25) on the connector that is positioned at elevation rotating shaft (24) (28), elevation rotating shaft (24) cooperates with second bearing (25) on the frame (13), the housing inner chamber interlayer (20) of heat exchanger (17) is divided into heat collector cavity (1) and heat exchanging chamber (4) with it, there is heat pipe (3) to pass interlayer (20) in the heat exchanging chamber (4) and enters heat collector cavity (1), heat exchanging chamber (4) has working medium input pipe (10) and working medium efferent duct (9), heat collector cavity (1) has transmission mouth (12), solar energy collectors (14) are positioned on the installing plate (26) in the azimuth rotating shaft (23), and the focus of the mirror surface of solar energy collectors (14) is positioned at heat collector cavity (1).
2, heat exchanger according to claim 1, it is characterized in that there is thermal-arrest head (2) termination that heat pipe (3) is positioned at heat collector cavity (1), heat pipe is positioned on the body of heat exchanging chamber heat exchange fin or pin (5), thermal-arrest head (2) is a cone, its bottom surface over against tubaeform transmission mouth (12) is curved surface (21), there is some thermal-arrest pins (22) bunchy to arrange that the focus of the mirror surface of solar energy collectors (14) is positioned at thermal-arrest pin bundle on the curved surface (21).
3, heat-exchanger rig according to claim 1, the housing that it is characterized in that heat exchanger (17) is made up of shell (8), thermal insulation layer (7) and inner casing (6), inner casing (6) is a ceramic structure, working medium input pipe (10) is in heat exchanging chamber bottom radial arrangement, dynamic device (11), working medium efferent duct (9) is arranged at the heat exchanging chamber top axial.
4, heat-exchanger rig according to claim 1 is characterized in that some solar energy point focusing heat exchangers composition arrays, and all working medium efferent ducts (9) are connected with same thermal-collecting tube (18).
5, heat-exchanger rig according to claim 1, it is characterized in that having in the housing (33) of bidirectional drive (19) first motor (30) to be in transmission connection by first decelerator (31) and power transmission shaft (34), power transmission shaft (34) is connected with azimuth rotating shaft (23) by shaft coupling (37), housing (33) is positioned on the mount pad (32), have second motor (38) to be in transmission connection by second decelerator (39) and vertical mobile device on the chassis of mount pad (32), the vertical moving member (42) of vertical mobile device contacts with housing (33).
6, heat-exchanger rig according to claim 1, it is characterized in that aspect sensor (35) has two check-out consoles, first check-out console is installed in the azimuth rotating shaft (23), second check-out console is installed on the elevation rotating shaft (24), the output of first check-out console is connected with first motor (30) through signal controller (36), and the output of second check-out console is connected with second motor (38) through signal controller (36).
7, heat-exchanger rig according to claim 5 is characterized in that said vertical mobile device is worm gearing or screw-drive mechanism.
8, heat-exchanger rig according to claim 7, the vertical moving member (42) that it is characterized in that said screw-drive mechanism is the swivel nut threaded engagement that is connected on screw rod and the mount pad (32), screw rod endwisely slips and circumferentially is rotatably assorted by feather key and first bevel gear (41), second bevel gear engagement on the first umbrella tooth (41) and second decelerator (39) output shaft, first bevel gear (41) is connected on the mount pad (32) rotationally.
9, heat-exchanger rig according to claim 1, it is characterized in that having in the housing (33) of bidirectional drive (19) first motor (30) to be in transmission connection by first decelerator (31) and power transmission shaft (34), power transmission shaft (34) is connected with azimuth rotating shaft (23), housing (33) is positioned on the mount pad (32), mount pad (32) has horizontal rotating disc to be connected with vertical screw flight, and the upper end of vertical screw rod contacts with the base plate of housing (33).
CNB200810045649XA 2008-07-28 2008-07-28 Solar energy point focusing heat exchanger Expired - Fee Related CN100565033C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB200810045649XA CN100565033C (en) 2008-07-28 2008-07-28 Solar energy point focusing heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB200810045649XA CN100565033C (en) 2008-07-28 2008-07-28 Solar energy point focusing heat exchanger

Publications (2)

Publication Number Publication Date
CN101324377A CN101324377A (en) 2008-12-17
CN100565033C true CN100565033C (en) 2009-12-02

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101776332B (en) * 2009-07-09 2012-12-19 李刚 Integral flat double-shaft solar water heater
CN105446363A (en) * 2015-12-23 2016-03-30 南京信息工程大学 Automatically-rotatable hyperspectral spectrometer sea surface radiation system and control method thereof
CN105656422B (en) * 2016-03-07 2018-05-04 陕西航泰电气股份有限公司 A kind of GZG-HT photovoltaics automatic tracking system
CN110762855B (en) * 2019-10-28 2024-04-02 湖南科技大学 Solar heat absorber driven by wind power to rotate and translate and working method thereof

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Address after: Yang Yanlu 101400 Beijing city Huairou District Yanqi Economic Development Zone No. 88 No. D21

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Address before: 12, building two, building two, No. 20, Dongfeng Road, Sichuan, Chengdu, 610061

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