EP2625471A1 - Dispositif de nettoyage pour installations thermiques solaires et photovoltaïques - Google Patents

Dispositif de nettoyage pour installations thermiques solaires et photovoltaïques

Info

Publication number
EP2625471A1
EP2625471A1 EP11770733.1A EP11770733A EP2625471A1 EP 2625471 A1 EP2625471 A1 EP 2625471A1 EP 11770733 A EP11770733 A EP 11770733A EP 2625471 A1 EP2625471 A1 EP 2625471A1
Authority
EP
European Patent Office
Prior art keywords
modules
cleaning
cleaning device
cleaning medium
nozzles
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.)
Withdrawn
Application number
EP11770733.1A
Other languages
German (de)
English (en)
Inventor
Richard Kail
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2625471A1 publication Critical patent/EP2625471A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/60—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
    • F24S40/20—Cleaning; Removing snow
    • 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 invention relates to a cleaning device for a solar system comprising a pipeline system and at least one nozzle and a method for operating a cleaning device for a solar system according to the independent claim 9.
  • solar system is understood to mean all types of systems for converting solar radiation into useful energy. This includes photovoltaic systems that convert solar radiation into thermal energy.
  • the cleaning device according to the invention has the advantage that it represents a particularly assembly-friendly and easily configurable system while avoiding the known disadvantages of the prior art.
  • a basic idea of the invention is that in areas with high solar radiation, which are particularly suitable for the installation of solar systems, the environment is often dry and dusty. Thus, the main pollution of the photovoltaic or solar thermal modules from dust deposits, while no water is available for cleaning the modules. Therefore, this dust deposits will blow away according to the invention with compressed air (cleaning medium).
  • the system can also be extended to reduce overlying snow loads or to prevent snowflakes impeding the irradiation. Easy interchangeability of the nozzles and the detergent source also allows for flexible use of liquid or vapor cleaning media, depending on requirements. For example, water is used as a cleaning agent in areas rich in water instead of compressed air.
  • the nozzles are arranged laterally on the module.
  • the module surface is not unnecessarily shaded and it can be arranged over the entire page length multiple nozzles.
  • the piping system which supplies the individual nozzles with compressed air, also guided past the side of the modules and it will be realized with appropriate arrangement of several modules short ways. This reduces the pipe lengths and, as a result, the installation and operating costs.
  • the nozzles are arranged within the module surface. For example, by concentric arrangement within the module surface of nozzles that blow radially outwards, the path that the dirt must travel in half to leave the module surface is halved. Thus, less energy is needed to remove the dirt with an air jet from the irradiated surface of the solar system, thereby reducing costs.
  • the inventive device works even better when the nozzles are interchangeable.
  • the nozzles can be replaced according to the cleaning task in a simple and cost-effective manner. It is possible to select nozzles with different beam widths or beam characteristics, such as, for example, wide jet, round jet or milling jet.
  • nozzles that are adapted to the state of aggregation of the cleaning medium used can be used. This makes the system easy to configure for a wide variety of tasks.
  • a manufacturing technology simple solution provides that the piping system consists of plastic pipes. Pipes made of PVC or PE are easy to transport and can be cut to length on site according to local conditions. This creates an easy-to-install system that can be easily adapted to different solar systems.
  • clamps which engage in profile rails.
  • the clamps can be prefabricated very easily and inexpensively, for example by laser cutting of aluminum or spring steel, and then clipped into the profile rails on site.
  • These rails usually standardized U-profiles, are often used as a frame for the solar modules or can be retrofitted at low cost.
  • the piping system is connected to a separate cleaning medium source.
  • the cleaning medium source usually comprises a compressed air supply system or a steam supply system.
  • the cleaning medium can be selected and provided according to the requirements. This makes the cleaning system very easy to configure for different cleaning tasks.
  • the inventive method provides to activate the cleaning device as needed or at predetermined time intervals.
  • the cleaning medium is also used to cool the modules.
  • the efficiency deteriorates with increasing temperature of the module.
  • the conditioning of the compressed air can be done by sucking it in the shade of the photovoltaic module or cooled separately.
  • the cleaning medium forms an air curtain over the modules and no dust or very little dust settles on the modules, so that their performance is not impaired.
  • the cleaning device can also be activated when the relative humidity of the ambient air is near saturation or even dewing has already occurred on the modules. Tau is undesirable because it moistens the dust on the modules, and this wet mix bonds very tightly to the module surface. The "baked" dust on the module surface in this way is later difficult to remove with compressed air. Therefore, it is expedient to prevent the humidification of the dust from the outset. S
  • a method for operating a cleaning device according to the invention in a sun-tracking solar system.
  • the solar system such as a parabolic trough collector
  • the parabolic trough collector intercepts light rays and focuses them on a focal line.
  • the parabolic trough collector is tracked by means of a mechanical device. Due to its special, hyperbolic shape in cross section, the parabolic trough collector is difficult to clean.
  • the invention therefore attached to the parabolic trough collector nozzles are then actuated when the parabolic trough collector has reached a suitable position. This may mean that the parabolic trough collector is specially driven for cleaning in a particularly suitable position so that the blown or rinsed dust does not collect at the lowest point of the parabolic trough collector.
  • Figure 1 is a schematic representation of a cleaning system
  • FIG. 2 is a detail view of the pipe system according to the invention.
  • FIG. 3 is a detail view of the clamping device according to the invention.
  • Figure 4 is a schematic representation of an exemplary arrangement
  • Figure 5 is a schematic representation of an embodiment
  • FIG. 1 shows schematically the structure of an embodiment of the cleaning system 10 according to the invention for photovoltaic or solar thermal modules, hereinafter referred to as modules 12.
  • modules 12 have in common that they have as large a surface exposed to solar radiation as possible, which are referred to as irradiated areas in connection with the invention. Dust deposits on these irradiated areas.
  • At least one nozzle 14 is arranged on the side of the modules 12.
  • a pipeline system 16 connects the nozzles 14 to a cleaning medium source 18. Since air, steam or water can be used as the cleaning medium, the cleaning medium source 16 can be designed as a compressed air supply, steam generator or pumping station for liquids ,
  • the cleaning medium is conveyed from the cleaning medium source 18 through the piping 16 to the nozzles 14.
  • the nozzles 14 distribute the cleaning medium on the modules 12 so that dirt lying on the surface of the modules 12 is captured and removed by the cleaning medium.
  • a collecting device not shown in the drawing can be provided for liquid cleaning media. The collected liquid cleaning medium is cleaned and reused.
  • FIG. 2 shows a detail of the pipeline system 16. Shown is a pipe coupling 20 designed as a T piece.
  • the pipe coupling 20 is connected at a first end 22 and a second end 24 to two pipes 27 which are part of the pipe system 16.
  • An opening 26 perpendicular to the plane of the drawing serves to receive the nozzle 14 (not shown in FIG. 2).
  • the nozzle 14 and the ends 22 and 24 of the piping system are in the usual way, for example, by pressing or by means of a pipe fitting to the pipe coupling 20 attached.
  • the pipe coupling 20 is enclosed by a respective terminal 28, which in turn is supported on the photovoltaic or solar thermal module 12.
  • the pipe coupling 20 and piping 16 are attached to the module 12.
  • the piping system 16 may be arranged on one side of the modules 12 or circumferentially around the modules 12. By attaching the nozzles 14 to the pipe coupling 20, it is possible to select the nozzles 14 according to the application in any variations with respect to the cleaning medium, the beam width and the beam characteristic.
  • Figure 3 shows a side view of the terminal 28.
  • the terminal 28 has a circular recess 30, for receiving the pipe coupling 20. Below the circular recess 30, a rectangular recess 32 is arranged.
  • the rectangular recess 32 is designed so that the terminal 28 so that it can engage in a rail 33, for example, with a standardized U or C profile, which is attached to the module 12.
  • the clamps 28 are preferably made by laser cutting from aluminum or spring steel.
  • FIG. 4 shows a schematic representation of various arrangement variants for the nozzle 16. Shown is the module 12, which is mounted with supports 34 on the ground 36, for example, the ground or a building roof. Depending on the geometry of the module 12, the nozzles 16 or the cleaning medium used, the following arrangement variants are possible: A first arrangement 38 provides the positioning of the nozzles 16 and the piping system 14, at the lower edge of the module 12. Adhesive dust and dirt are thus blown upwards.
  • nozzles 16 and the associated piping system 14 are arranged at the upper edge of the module 12. Dirt on the module 12 is flushed away or blown away.
  • a third arrangement 42 requires an opening within the module 12 so that the nozzles 16 are located within the module surface and are supplied with cleaning medium by the piping system 14 located below the module. The nozzle 16 is then selected, for example, so that it distributes the cleaning medium radially outward.
  • a nozzle 16 is shown for each arrangement variant 38, 40 and 42. However, it is also conceivable to have a plurality of nozzles 16 in an arrangement variant 38 40 or 42, or in any combination of the three arrangement variants.
  • FIG. 5 shows an application example of the device according to the invention.
  • Schematically represented is a parabolic trough collector 44.
  • the parabolic trough collector intercepts light rays 46 and focuses them on a focal line 48. If the direction from which the light rays 46 change over time, the parabolic trough collector 44 tracks the sun. The tracking is symbolized by the arrows 50 in FIG.
  • nozzles 16 are then actuated when the parabolic trough collector 44 has reached a suitable position. That is, when the parabolic trough collector 44 experiences its greatest deflection, the dust can be blown out without it collecting at the lowest point of the parabolic trough collector 44.
  • FIGS. 6 and 7 a photovoltaic module 12 equipped with a cleaning system 10 according to the invention according to FIGS. 2 and 3 is shown in an isometric view. At these representations, the operation, the simple structure and the attachment by means of inventive terminals 28 are clearly visible.
  • Figure 8 shows an enlarged view of a pipe coupling 20 and its connection to the pipes 27.
  • the attachment to the photovoltaic module 12 by means of the terminals 28 according to the invention can be seen well.
  • Figure 9 shows the pipe coupling 20, the sealing rings 29 and the terminals 28 in an exploded view.

Landscapes

  • 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)
  • Photovoltaic Devices (AREA)
  • Cleaning In General (AREA)

Abstract

La présente invention concerne un dispositif de nettoyage pour modules thermiques solaires et photovoltaïques (12), comprenant un système de conduites tubulaires (14) et au moins une buse (16), un agent de nettoyage gazeux étant employé.
EP11770733.1A 2010-10-08 2011-10-07 Dispositif de nettoyage pour installations thermiques solaires et photovoltaïques Withdrawn EP2625471A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010047986A DE102010047986A1 (de) 2010-10-08 2010-10-08 Reinigungsvorrichtung für Photovoltaik- und Solarthermieanlagen
PCT/EP2011/067569 WO2012045866A1 (fr) 2010-10-08 2011-10-07 Dispositif de nettoyage pour installations thermiques solaires et photovoltaïques

Publications (1)

Publication Number Publication Date
EP2625471A1 true EP2625471A1 (fr) 2013-08-14

Family

ID=44971001

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11770733.1A Withdrawn EP2625471A1 (fr) 2010-10-08 2011-10-07 Dispositif de nettoyage pour installations thermiques solaires et photovoltaïques

Country Status (3)

Country Link
EP (1) EP2625471A1 (fr)
DE (1) DE102010047986A1 (fr)
WO (1) WO2012045866A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103084360B (zh) * 2013-02-05 2015-03-25 北京安必信金属制品有限公司 一种光伏电站组件全自动智能清洁设备
US9973141B2 (en) 2015-01-15 2018-05-15 Saudi Arabian Oil Company Solar system comprising self sustainable condensation, water collection, and cleaning subassemblies
US20200044600A1 (en) * 2017-03-13 2020-02-06 NaanDanJain Irrigation Ltd. Self-cleaning solar panel assembly and sprinkler mounting assembly therefor

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3682698B2 (ja) * 1999-06-04 2005-08-10 株式会社パイオラックス 棒状体ホルダー
DE10028093A1 (de) * 2000-06-07 2001-12-13 Friedrich Udo Mueller Sonnenkollektor und Verfahren zum Reinigen eines Sonnenkollektors
US6911593B2 (en) * 2002-09-24 2005-06-28 Board Of Trustees Of The University Of Arkansas Transparent self-cleaning dust shield
DE102004026517B3 (de) * 2004-05-19 2005-10-06 Deutsches Zentrum für Luft- und Raumfahrt e.V. Kühlungsvorrichtung für strahlungsbeaufschlagte gewölbte Fenster, Strahlungsempfänger und Verfahren zur Kühlung eines gewölbten Fensters
DE102004036094B4 (de) * 2004-07-24 2007-11-22 Deutsches Zentrum für Luft- und Raumfahrt e.V. Waschapparat für einen Parabolrinnenkollektor
DE202007001488U1 (de) 2006-07-29 2007-04-12 Hettinger Gerd Reinigungsvorrichtung für Photovoltaik-, Solaranlagen und/oder Dachflächen
DE102006053704A1 (de) * 2006-11-15 2008-05-21 Novatec Biosol Ag Waschapparat und Waschverfahren für Solarkollektoren
US20090288691A1 (en) 2008-05-23 2009-11-26 Hunt Gene C Solar panel cleaning system
DE202008007802U1 (de) * 2008-06-06 2008-09-18 JÄSCHKE, Stefan Reinigungsanlage für Photovoltaikanlagen
ES1069495U (es) 2009-01-09 2009-04-01 Solar Bright, S.L. Vehiculo autonomo para la limpieza de placas solares.
DE202009012816U1 (de) * 2009-07-03 2009-12-24 Ehleuter, Franz Solaranlagenreinigungsvorrichtung
US20110160635A1 (en) 2009-12-24 2011-06-30 Baschnagel Robert J Cotton balls, cotton swabs and cotton swab holder

Also Published As

Publication number Publication date
WO2012045866A1 (fr) 2012-04-12
DE102010047986A1 (de) 2012-04-12

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