WO1998057103A1 - Systeme collecteur de chaleur solaire ameliore - Google Patents

Systeme collecteur de chaleur solaire ameliore Download PDF

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Publication number
WO1998057103A1
WO1998057103A1 PCT/CN1998/000082 CN9800082W WO9857103A1 WO 1998057103 A1 WO1998057103 A1 WO 1998057103A1 CN 9800082 W CN9800082 W CN 9800082W WO 9857103 A1 WO9857103 A1 WO 9857103A1
Authority
WO
WIPO (PCT)
Prior art keywords
mirror
ring
collecting tube
tube
heat collecting
Prior art date
Application number
PCT/CN1998/000082
Other languages
English (en)
Chinese (zh)
Inventor
Yi Wen
Original Assignee
Yi Wen
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 Yi Wen filed Critical Yi Wen
Priority to AU76354/98A priority Critical patent/AU7635498A/en
Publication of WO1998057103A1 publication Critical patent/WO1998057103A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S30/00—Arrangements for moving or orienting solar heat collector modules
    • F24S30/40—Arrangements for moving or orienting solar heat collector modules for rotary movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S20/00—Solar heat collectors specially adapted for particular uses or environments
    • F24S20/20—Solar heat collectors for receiving concentrated solar energy, e.g. receivers for solar power plants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
    • F24S23/74—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with trough-shaped or cylindro-parabolic reflective surfaces
    • 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

Definitions

  • the present invention relates to a solar device, and more particularly, to a novel concentrating solar device.
  • Tracking solar devices usually include a parabolic or groove-shaped collector, a collector tube fixedly placed at the focal point (line) of the collector, a bracket and a base supporting the collector, and a control slot mirror or parabolic mirror that rotates with the sun.
  • Control system Power generation and utilization system, which is mainly composed of evaporator, steam turbine, generator, etc .
  • Circulation system which mainly includes circulation pump, heat transfer fluid transfer pipe, heat transfer fluid return pipe, etc.
  • the control system controls the notch mirror to face the sun, collecting as much solar energy as possible.
  • the reflected solar heat reflected by the groove mirror is transferred to the heat transfer medium of the collector. After the exchange, it flows back into the collector in the groove mirror.
  • the control structure is complicated, and the thermal energy in the collector cannot be easily transmitted to fixed equipment.
  • Large-sized mirrors such as 96 M
  • the solar concentrating device using solar energy of the present invention includes 1) a grooved mirror array, 2) a vacuum light collection tube, 3) a support and a base, 4) a control system, and 5) power generation and utilization System and 6) circulatory system. It is characterized by: using an automatically controlled grooved mirror that rotates with the sun to collect sunlight onto a fixed vacuum light heat collecting tube that is relatively stationary with the ground, and the heat medium in the heat collecting tube is used to collect the light in the W-channel mirror The solar thermal energy collected in the medium is used effectively.
  • the concave mirror of this device Compared with the existing parabolic or groove-shaped collectors, the concave mirror of this device has a small aperture and a small external dimension, which is easy to manufacture and easy to install, install and transport. In this way, the cost of a four-slot mirror is small.
  • the vacuum lighting heat collecting tube of this device is stationary, so it is reliable and easy to maintain, which can reduce the operation and maintenance costs and increase the service life.
  • the water used to generate electricity can be directly heated into steam, reducing the equipment without secondary heat exchange, improving the utilization of thermal energy, and greatly reducing the price of electricity.
  • the control system of this device is simple, and the cost allocated to each square groove mirror is low.
  • Figure 1 shows a grooved mirror used in the present invention
  • FIG. 2 shows a novel concentrating solar energy utilization device according to an embodiment of the present invention
  • FIG. 3 shows a vacuum heat collecting tube using a concentrating solar energy device according to the present invention
  • FIG. 4 shows the installation of the top clamp and the vacuum heat collecting tube of the present invention
  • Figure 5 shows the installation of the solar device of the present invention for generating electricity
  • Fig. 6 shows a control system of a solar device according to the present invention.
  • FIG. 2 shows a novel concentrating solar energy utilization device according to an embodiment of the present invention. It includes a grooved vacuum lighting heat collecting tube 22, a bracket support 23, a control rope and a control motor 24, a heat energy utilization system 25, and a circulation pipe 26.
  • Groove mirror array This array is a collection of numerous single groove mirrors 21 arranged regularly.
  • a single groove mirror is composed of a semi-cylindrical concave mirror and a side frame. See FIG. 1, where AA 'and BB' are the two outer edges of the groove mirror, and the length is the length of the groove mirror.
  • AB or A'B ' is the width of the grooved mirror.
  • CP or C'P ' is a four-slot mirror aperture.
  • FF ' is the groove mirror focal line.
  • L is the ring on the side of the groove mirror.
  • CPC'P ' constitutes the main optical axis surface of the groove mirror, and FF' is in the main optical axis surface.
  • AGB or A'G'B ' is the crossbar.
  • the cross bar and the ring form the side of the groove mirror.
  • the distance between the rings L and L ' is parallel and is greater than the length of the concave mirror.
  • the groove mirror is used to collect light. It is required to always face the sun and track the sun during the day.
  • the semi-cylindrical concave mirror has already existed, and the main difference between the concave mirror and the existing concave mirror in the present invention is reflected in the side frame of the side. Due to the structural characteristics of the groove mirror, in the choice of materials, rigid polyvinyl chloride can be used as the base of the four-slot mirror. Reflective layer (such as tin); Styrofoam can also be used as the substrate, and the plexiglass sheet (about 1mm thick) coated with reflective material can be used as a condenser.
  • the notch mirror is supported by a bracket through a ring L.
  • the inlet and outlet water pipes can also function as brackets.
  • the installation of the heat collecting pipe is parallel to the earth's ground axis. So that the grooved mirror can be rotated at an angle of 15 ° per hour, it can track the sun.
  • the arrangement should also be connected in series and in parallel, and the groove mirror at the thermal energy output end should be wider in size, larger in aperture, and larger in light concentration ratio. ( Figure 5)
  • Vacuum lighting heat collecting tube 22 As shown in FIG. 3, it is composed of vacuum glass tubes 31 and 32 and a heat collecting tube 34. It is installed at the focal line of the W-slot mirror to absorb the light and heat collected from the grooved mirror, and at the same time effectively prevents the dissipation of thermal energy (conduction and convection heat loss).
  • Vacuum glass tubes 31, 32 It is composed of two coaxial glass tubes, 33 is evacuated between the glass, and the two ends between the glass are sealed.
  • a two-lobed glass vacuum tube As long as it is adhered to the periphery of the heat collecting tube from top to bottom or left to right.
  • the glass tube is made of borosilicate glass.
  • Heat collecting tube 34 It consists of a metal tube coated with a selective absorption coating on the periphery or a metal sheet coated with a selective absorption coating.
  • the heat collecting tube is installed inside the glass tube, but it is not in contact with the glass tube and there is a certain gap 35.
  • the collector tube can be a common metal tube or a seamless steel tube with a high pressure bearing capacity. In particular, when used for cooking, a heat tube can be used.
  • the vacuum lighting heat collecting tube transmits heat energy through a heat transfer medium 36 in the heat collecting tube.
  • a heat transfer medium such as water, antifreeze, and grease.
  • Support and support 23 The support is used to support and fix the support.
  • the support is built on the ground and cast from concrete.
  • the bracket is used to support the four-slot mirror and support the vacuum lighting heat collecting tube.
  • the bracket is composed of a bracket rod 48, a top clip, and a fastener.
  • Bracket rod See Figures 2 and 4, which are mounted on the support in a "herringbone” shape by two round steel or square steel pipes. There is a top clip at the top and two fasteners and buckles at the half waist. The distance from the piece to the center of the top clamp is equal to the radius of the ring.
  • Top clamp (as shown in Figure 4), it is used to fix the glass tube and the heat collecting tube. It is mainly composed of a base 43, outer ring buckles 44, 45, and a diameter rod 47.
  • the base is connected to a stand, and a glass tube is placed on it.
  • the outer ring buckle 45 protrudes from both sides of the base, and is used to fix the glass tube.
  • the two glass tubes are sleeved in a rubber sleeve 41, and then the peripheral ring buckle is tightened with a bolt 42.
  • the diameter rod extends from the center of the base to the center of the ring to support and fix the heat collecting tube. At the end of the diameter rod that extends to the center of the circle, there are also two half rings 44 that resemble peripheral ring buckles.
  • Fastener 46 The fastener is used to support the ring on the side of the groove mirror.
  • a groove mirror has a ring on each of its two sides.
  • the two rings are supported and stabilized by four fasteners.
  • Each fastener has two clamping wheels (or a round hole). Indentation, the two clamping wheels clamp the ring into the outer edge (or let the ring pass through its hole). In this way, the four fasteners determine that the groove mirror can only rotate around the vacuum lighting heat collecting tube.
  • the fastener is equivalent to a ball of a phase change bearing.
  • the fastener and the ring form a phase change bearing in which the grooved mirror rotates around the vacuum heat collecting tube.
  • Control system 24 It is used to control the groove mirror to rotate with the sun. It is mainly composed of information source, power and transmission. ( Figure 6)
  • A. Information source It is mainly used to provide information for the power plant. It consists of a photodiode 61, a relay 64, a limit switch, an intermediate partition 62, and an adjustment circuit 65. ( Figure 6)
  • the first photocell controls the operation of the entire system. The power is turned on during the day and turned off at night. Three photodiodes 61 are placed on both sides of the middle partition, one on the east and two on both sides. Each photodiode is also connected with a relay 64, and the three relays 64 are connected to the speed control circuit board at the same time.
  • the middle partition must be parallel to the main optical axis surface composed of the focal line and the center bus of the grooved mirror (PP ′ in Figure 1).
  • the entire control system is switched on through the relay, and the solar device starts to work.
  • the sun shines on both the east and west photodiodes at the same time, and the motor rotates at a medium speed.
  • the motor rotates rapidly.
  • the groove mirror is westward, the sun shines to the east but not the west, and the motor rotates at a slow speed. If it is cloudy, the motor will also rotate at medium speed.
  • the limit switch When the sun goes down, the limit switch is turned on by the protrusion on the ring, so that the motor can be reversed quickly to restore the groove mirror to its original position. When returning to the original position, turn off the limit switch to power on the system. Therefore, the first photocell does not work at night and the system power cannot be turned on. Wait until the sun comes out the next day.
  • Power and transmission device (see Figure 6) It is mainly composed of motor 66, transmission 67, fixed pulley 610, peripheral closed loop rope 69, and mirror wire 611. There are about 20 grooved mirrors connected in parallel by a wire between the mirrors connected through a small hole in the ring and the shaft of the hole. At the same time, there are about 20 rows of parallel groove mirrors (400 groove mirrors in total), and then the outermost closed groove rope links the outermost groove mirror ring of each row through a fixed pulley, thereby driving 400 groove mirrors to enter the energy. Turn back. (The 400 groove mirrors are not shown in the drawings but are schematic diagrams.)
  • Power generation and utilization system 25 This system is mainly installed at the thermal energy output end of the solar energy utilization device. This system can be designed according to the prior art with reference to the arrangement rules of the groove mirrors and the purpose of utilization.
  • Circulation system 26 It is mainly composed of circulation pump 56, pressure and temperature sensor, delivery pipe, output pipe 26, 57, 58 and so on. If used to generate electricity, the steam can be cooled and recycled.
  • the high-pressure water pump (circulating pump) 56 also started to work. Distilled water was forced into the collector tube and also flowed forward while absorbing heat. Over time, sunlight gradually strengthens, and thermal energy is further accumulated, which can turn into steam when the water flows to the middle. When the light is focused on the heat collecting tube by a larger 52 and a larger 53 groove mirror, the temperature of the steam further increases, and the pressure further increases.
  • the base is repaired before installation, and then the bracket (top clamp and fastener) is installed.
  • the bracket top clamp and fastener
  • vacuum glass tubes and rubber rings are also placed outside the steel tubes. While welding and covering, fix the copper tube on the top clamp diameter rod, and fix the glass tube on the top clamp base. Then connect the collector tube to the input and output pipes. Finally, the groove mirror is installed through the fasteners and stringed by the control wire.
  • This invention is mainly composed of some cheap materials. As long as funds are available, some thermodynamic experts and mechanical experts can be organized to design the best according to the scale to form a solar power plant. After designing the length, width, and focal length of the grooved mirror, you can customize the grooved mirror with the mirror factory or electroplating factory. After designing the vacuum glass tube, make a glass tube with the glass factory. Then purchase some metal pipes according to the design requirements, and make a four-slot mirror side frame, top clips and fasteners and clip wheels made by a general hardware factory (the clip wheels can use bicycle pedals, and only change the pedals to "tread” Wheel)), repair the base with cement, press the bracket with the top clip, and assemble the side frame and the groove mirror.
  • a general hardware factory the clip wheels can use bicycle pedals, and only change the pedals to "tread” Wheel

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Photovoltaic Devices (AREA)

Abstract

L'invention concerne un système collecteur de chaleur solaire comprenant des réflecteurs disposés en rangées, des tuyaux collecteurs sous vide, des supports et des bases, un système de commande et un système d'utilisation de la chaleur. Ce système comprend un organe d'actionnemen en deux dimensions conçu pour pivoter et suivre le mouvement du soleil. L'invention s'utilise pour la production de courant et pour le chauffage de l'eau.
PCT/CN1998/000082 1997-06-10 1998-06-02 Systeme collecteur de chaleur solaire ameliore WO1998057103A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU76354/98A AU7635498A (en) 1997-06-10 1998-06-02 Improved solar energy collector system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN97112620A CN1173620A (zh) 1997-06-10 1997-06-10 新型聚光式利用太阳能的装置
CN97112620.8 1997-06-10

Publications (1)

Publication Number Publication Date
WO1998057103A1 true WO1998057103A1 (fr) 1998-12-17

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ID=5172392

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN1998/000082 WO1998057103A1 (fr) 1997-06-10 1998-06-02 Systeme collecteur de chaleur solaire ameliore

Country Status (3)

Country Link
CN (1) CN1173620A (fr)
AU (1) AU7635498A (fr)
WO (1) WO1998057103A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2474927C1 (ru) * 2011-08-02 2013-02-10 Российская Федерация, От Имени Которой Выступает Министерство Промышленности И Торговли Российской Федерации Конструкция системы концентраторных фотоэлектрических установок
RU2476957C1 (ru) * 2011-08-01 2013-02-27 Российская Федерация, От Имени Которой Выступает Министерство Промышленности И Торговли Российской Федерации Солнечная фотоэнергоустановка
EP3093580A1 (fr) * 2015-05-13 2016-11-16 Areva Solar, Inc Réseau de récepteurs solaires directs linéaires destinés à chauffer un fluide
CN107940780A (zh) * 2017-06-12 2018-04-20 天津滨海光热跟踪技术有限公司 一种750米集热回路及其在50mw光场中的应用

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CN101029776B (zh) * 2006-02-27 2011-10-05 李建民 一种热管太阳能热能利用系统
CN102520732B (zh) * 2006-02-27 2014-07-30 成都奥能普科技有限公司 十字变焦太阳能跟踪利用器
CN101029779B (zh) * 2006-02-27 2012-01-04 李建民 太阳能光学镜跟踪利用器阵列
CN101042267B (zh) * 2006-02-27 2012-01-04 李建民 一种光学镜太阳能热发电系统
CN101029778B (zh) * 2006-02-27 2011-08-10 李建民 一种光学镜热管太阳能热发电系统
CN101029780B (zh) * 2006-02-27 2011-10-05 李建民 一种光学镜热管太阳建筑热能利用系统
CN101900435A (zh) * 2009-05-31 2010-12-01 北京智慧剑科技发展有限责任公司 一种太阳能分布式点聚焦光学镜跟踪真空管利用系统
CN102278826A (zh) * 2011-07-29 2011-12-14 范印宝 多用途太阳能集热装置
CN104515310B (zh) * 2013-09-26 2017-02-08 秦佑镇 竖向槽式抛物面同步跟踪太阳能热发电系统
CN103592750A (zh) * 2013-11-09 2014-02-19 榆社县云山新能源与新健身用品研发厂 把阳光直接反射回高空使热天降温减少热灾风灾的反光镜群
CN106472178A (zh) * 2016-11-01 2017-03-08 北京化工大学 一种带有光子晶体膜的太阳能高效利用温室装置
CN112902098A (zh) * 2021-03-24 2021-06-04 河南理工大学 一种用于地下照明的光导采光装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3847136A (en) * 1973-07-27 1974-11-12 N Salvail Solar water-heating systems
US4114594A (en) * 1976-10-22 1978-09-19 Meyer Warren A Device for synchronously rotating solar collectors
US4646718A (en) * 1981-10-09 1987-03-03 Wood Kenneth G Combined pressurized air solar heat sensing head assembly and a pressurized water drive system used to move solar energy collectors in tracking the sun

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3847136A (en) * 1973-07-27 1974-11-12 N Salvail Solar water-heating systems
US4114594A (en) * 1976-10-22 1978-09-19 Meyer Warren A Device for synchronously rotating solar collectors
US4646718A (en) * 1981-10-09 1987-03-03 Wood Kenneth G Combined pressurized air solar heat sensing head assembly and a pressurized water drive system used to move solar energy collectors in tracking the sun

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2476957C1 (ru) * 2011-08-01 2013-02-27 Российская Федерация, От Имени Которой Выступает Министерство Промышленности И Торговли Российской Федерации Солнечная фотоэнергоустановка
RU2474927C1 (ru) * 2011-08-02 2013-02-10 Российская Федерация, От Имени Которой Выступает Министерство Промышленности И Торговли Российской Федерации Конструкция системы концентраторных фотоэлектрических установок
EP3093580A1 (fr) * 2015-05-13 2016-11-16 Areva Solar, Inc Réseau de récepteurs solaires directs linéaires destinés à chauffer un fluide
CN107940780A (zh) * 2017-06-12 2018-04-20 天津滨海光热跟踪技术有限公司 一种750米集热回路及其在50mw光场中的应用

Also Published As

Publication number Publication date
CN1173620A (zh) 1998-02-18
AU7635498A (en) 1998-12-30

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