• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a photothermal module (1) which is distinguished from generic photothermal modules in that a coolant connection (23) of an inlet line (24) is formed adjacent to the same longitudinal side (20.2) as a coolant connection of an outlet line, which the respective channel cross-section of one of the passages (24.1) acting as a throttle to the respective channel cross-section of one of the inlet (24) or discharge lines for coolant has a ratio between 1: 3 and 1:10, and the respective channel cross-section of one of the passages (24.1) acting as a throttle has a ratio between 1: 1.5 and 1: 2.5 for the respective channel cross-section of one of the longitudinal lines (29.1 - 29.n). The present invention is ideally suited for installation in so-called integral roofs and / or as a solar or solar / air absorber in so-called ice storage heat exchanger systems.
    公开号:CH716320A2
    申请号:CH00647/20
    申请日:2020-06-02
    公开日:2020-12-15
    发明作者:Geissbühler C/O Pvt Solar Ag Michael
    申请人:Pvt Solar Ag；
    IPC主号:
    专利说明:

    The present invention relates to a photothermal module with two longitudinal and two transverse sides. It also relates to a photothermal module field, i.e. a collection of photothermal modules that are at least thermally connected to one another. The photothermal modules can also be electrically connected to one another. Finally, the present invention also relates to a method for operating a photothermal module field, along with its use.
    A photothermal module is also referred to as a hybrid collector or PVT (photovoltaic-thermal) collector. Photovoltaics, in which the light energy of the sun is converted into electrical energy by means of solar cells, is combined with solar thermal energy, in which the solar energy is converted into thermal energy. With such a combined module, you can use solar thermal energy to generate heat and photovoltaics to generate electricity. A photothermal module or a photothermal module field can be used, for example, to supply a building with energy.
    From WO 2015/167389 A1 a photothermal module is known which consists of a cooler / absorber unit and a photovoltaic unit. The cooler / absorber unit comprises at least one flat surface with raised outer edges and can therefore function as a shape for the photovoltaic laminate structure. Such a cooler / absorber unit enables a liquid laminate material to be applied directly to the cooler / absorber unit for producing the photovoltaic unit. The laminate material can thus bond better to the cooler / absorber surface, whereby the photovoltaic unit is protected against damage caused by thermal expansion. Further photothermal modules of this type are known, for example, from EP 2 643 856 B1 (cf. also US 2016/0079460 A1) or CH 712 171 A2.
    The known photothermal modules require a parallel interconnection according to the so-called "Tichelmann" principle in a photothermal module array, according to which the cooling medium must cover approximately the same total length of (pipe) lines everywhere. The connection of several photothermal modules according to "Tichelmann" means that the pressure loss coefficients (zeta values) of the fittings of the (pipe) lines for the parallel connection of several identical photothermal modules (usually) are the same in total per photothermal module so that an even flow is guaranteed. Attempts to interconnect several known photothermal modules in series to form a photothermal module field showed that a satisfactory flow distribution could no longer be ensured over the serially connected photothermal modules from three serially connected photothermal modules. The advantage of a uniform flow distribution of several photothermal modules connected in parallel, however, is offset by the disadvantage of a relatively increased material and installation effort and the associated costs.
    Proceeding from this, the present invention is based on the object of providing a photothermal module which is improved over the prior art and which allows a series connection of several photothermal modules to form a photothermal module array without having inadequate flow distributions. In particular, the serial connection of several improved photothermal modules to form a photothermal module field should require less material and assembly work and should preferably also be suitable for so-called integral roof assemblies, in which higher-lying photothermal modules partially overlap lower-lying photothermal modules.
    This object is achieved by a photothermal module with the features of claim 1, by a photothermal module field with the features of claim 12 and by an operating method with the features of claim 13 and use with the features of claim 14.
    The photothermal module according to the invention comprises a photovoltaic module and a heat sink with an absorber plate and a conduction plate. An inlet line for coolant extends on one of the transverse sides of the cooling body and has a coolant connection at one end of the inlet line. A drain line for the coolant extends on the other transverse side of the heat sink and has a coolant connection at one end of the drain line. In addition, a plurality of longitudinal lines formed from the absorber plate and the line plate and arranged next to one another are provided which connect the inlet line to the outlet line without crossing. Both between the inlet line for coolant and the longitudinal lines and between the longitudinal lines and the outlet line for coolant, a passage acting as a throttle is formed in each case. A passage acting as a throttle between the supply line for coolant and the longitudinal lines advantageously ensures that the longitudinal lines are subjected to approximately the same pressure with cooling liquid. Likewise, a passage acting as a throttle between the longitudinal lines and the drain line for coolant advantageously ensures an approximately equal expansion of the cooling liquid from the longitudinal lines into the drain line
    The photothermal module according to the invention is distinguished from generic photothermal modules in that the coolant connection of the supply line is formed adjacent to the same longitudinal side as the coolant connection of the drainage line, the respective channel cross-section of one of the passages acting as a throttle to the respective channel cross-section of one of the or drain lines for coolant has a ratio between 1: 3 and 1:10, and the respective channel cross section of one of the passages acting as a throttle has a ratio between 1: 1.5 and 1: 2.5 to the respective channel cross section of one of the longitudinal lines.
    Only the setting of the respective channel cross-sections of the passages acting as a throttle to the respective channel cross-sections of the inlet or discharge lines for coolant to a ratio between 1: 3 and 1:10 and the setting of the respective channel cross-sections of the passages acting as a throttle to the respective Channel cross-sections of the longitudinal lines to a ratio between 1: 1.5 and 1: 2.5 advantageously enables the coolant connections to be attached not diagonally according to the "Tichelmann" principle but adjacent to the same longitudinal side, which is what serial assembly to photothermal module fields with Simplified sufficiently good flow distribution over several photothermal modules.
    Advantageous refinements and developments of the invention, which can be used individually or in combination with one another, are the subject of the dependent claims.
    In a particularly preferred development of the invention, it has proven itself when the respective channel cross section of one of the passages acting as a throttle has a ratio of about 1: 5 to the respective channel cross section of one of the inlet or outlet lines for coolant.
    Likewise, in a particularly preferred development of the invention has proven itself when the respective channel cross-section of one of the passages acting as a throttle has a ratio of approximately 1: 2 to the respective channel cross-section of one of the longitudinal lines.
    In a further preferred development of the invention has proven itself when the inlet line and / or the outlet line for coolant is flat on its side facing the photovoltaic module and bent on its opposite side facing away from the photovoltaic module, in particular in the shape of a basket arch, is trained. Accordingly, in a further development of the invention, the longitudinal lines can be flat on their side facing the photovoltaic module and bent, in particular in the shape of a basket arch, on their opposite side facing away from the photovoltaic module. On its side facing the photovoltaic module - that is, the side that is in direct contact with the photovoltaic module - flat longitudinal line, supply and / or. Drainage line enables better heat transfer between the photovoltaic module and the longitudinal lines or the inlet and / or outlet line due to the better surface contact of flat surfaces. Longitudinal lines, inlet and outlet lines which are curved on their opposite side facing away from the photovoltaic module, in particular in the shape of a basket arch, have better flow properties.
    In this case, between ten and fifty or particularly preferably thirty plus / minus one to three or in particular twenty-eight longitudinal lines can be formed in the heat sink.
    In practice, this allows the preferred embodiment of a photothermal module, in which the collecting channel of the inlet and outlet lines with a (as large as possible) cross-section of, for example, about 40 x 4 mm, the longitudinal channels or lines a high Total cross-section of, for example, 28 channels, each approx. 20 x 3 mm; and the transitions acting as throttles reduce the cross-section of the longitudinal channels or lines to 28 channels each measuring approx. 20 x 1.5 mm in order to feed the longitudinal lines approximately evenly with coolant from the inlet line or to feed it out into the drain line.
    According to a preferred development of the invention, the channel cross-section of longitudinal lines can be designed to be uniform or uneven. A uniform channel cross-section of the longitudinal lines promotes laminar flows (in the longitudinal lines between the throttles) and the lowest possible pressure losses; Uneven channel cross-sections, in particular due to flow obstacles introduced in them, with regard to design alternatives for which reference is made in full to the exemplary embodiments in FIGS. 3, 4 and 10 of CH 712 171 A2 and the associated description, promote a turbulent flow and more intensive heat exchange conditions. What is important in both configurations is a well-balanced ratio of the lowest possible total flow resistance to the associated pressure losses in order to be able to connect as many photothermal modules as possible in series with a largely uniform flow distribution without having to resort to comparatively higher pump capacities.
    To further equalize the flow distribution in each photothermal module has proven itself in a preferred development of the invention if the respective degree of unevenly formed channel cross-sections in those longitudinal lines which are arranged closer to the longitudinal side, adjacent to which the coolant connections are formed, to such longitudinal lines, which are arranged closer to the longitudinal side opposite the coolant connections, decreases continuously or in groups.
    Alternatively or cumulatively, it has proven useful if the cross section of the passages acting as a throttle in such longitudinal lines, which are arranged closer to the longitudinal side, adjacent to which the coolant connections are formed, to those in longitudinal lines acting as a throttle passages which are closer to the longitudinal side opposite the coolant connections increases steadily or in groups.
    By varying the cross-sections of the passages or the longitudinal lines continuously or in groups, the flow distribution in a photothermal module per longitudinal line or at least in groups of (for example four groups of seven) longitudinal lines can be evened out, resulting in the serial connection of as much photothermal energy as possible Module has the advantage without having to resort to comparatively higher pump capacities.
    In a preferred further development of the invention, it has been found to be effective if partial adhesive zones in the form of depressions are formed in the absorber sheet for bonding the photovoltaic module and heat sink. The provision of partial adhesive zones has the advantage that a preferably large area of the absorber sheet rests in direct contact on the photovoltaic module and the heat exchange is not hindered by the partial adhesive layers, laminating foils or similar insulators. Nevertheless, the adhesive can be applied in a sufficiently thick layer and still compensate for the differential changes in length of the photovoltaic module and absorber sheet of the heat sink due to temperature fluctuations (approx. -30 ° to approx. + 80 °). The adhesive is ideally elastic and made of silicone (e.g. from the Sikasil WT / AS / SG product family). This procedure leads to demonstrably higher module outputs, reference being made in full to the exemplary embodiments in FIGS. 5 and 8 of CH 712 171 A2 together with the associated description with regard to the design alternatives for the adhesive zones.
    In a preferred further development of the invention, it has proven useful if the absorber sheet is made of chrome steel with an austenitic or particularly preferably ferritic structure. Austenitic chrome steel (e.g. 1.4301) and particularly preferably ferritic chrome steel (e.g. 1.4509) have a significantly lower linear expansion compared to materials used in the prior art such as copper, aluminum or plastic, similar to glass. This has the advantage that the connection can be made by gluing with a thin adhesive layer of less than two millimeters without the gluing being exposed to excessive shear loads or the photothermal module bending.
    The present invention also relates to a photothermal module array, which comprises several, at least thermally connected in series, photothermal modules as described above, which are mounted at a mean angle of inclination to the sun and connected to each other via coolant connecting lines, so that the Long side of each photothermal module, adjacent to which the coolant connection of the inlet line and the coolant connection of the drainage line are formed, has a higher position than the respective opposite longitudinal side of said photothermal module.
    Finally, the present invention also relates to a method for operating a photothermal module array as described above, which realizes a so-called U-flow through the photothermal modules, so that coolant introduced into an inlet line sinks downwards away from the coolant connection and is heated , coolant collected in a drain line rises up to the coolant connection.
    With the present invention, four to eight, preferably six, photothermal modules can be connected in series to form a photothermal module field without having to accept significant losses in terms of flow distribution. When optimizing the flow cross-sections (cf. claims 8 and / or 9) in the photothermal module, the interconnection can be increased to eight to twelve photothermal modules; with sufficiently large inlet and outlet pipes, also to a photothermal module field with up to twenty photothermal modules. The serial connection leads to simpler assembly processes, saves material and is therefore cheaper than known photothermal module fields. Since the coolant connections for the inlet and outlet lines are formed according to the invention on the same longitudinal side of the photothermal module, which is preferably mounted in a higher position, photothermal modules according to the invention are also outstandingly suitable for so-called integral roofs where higher-lying photothermal Modules of lower-lying photothermal modules partially overlap, since only coolant connections that have already been connected are overlapped, while coolant connections that are still too connected always remain accessible. Finally, photothermal modules according to the invention also support the economical operation of a photothermal module field, since the thermal laws in the system are used in an energy-efficient manner through the implementation of a so-called U-flow through the individual photothermal modules, i.e. coolant introduced in a higher position in the supply line in the conveying direction sinks to the bottom and heated coolant discharged in a higher position of a drain line rises to the top. In both cases, the thermal in the system does not work against the direction of conveyance - as in some cases in the prior art - but advantageously supports the flow in the conveying direction noticeably.
    Because the inlet and outlet lines for coolant are each formed along the same transverse side, these connecting longitudinal lines can be formed next to one another and free of intersections. This advantageously ensures a flow through the photothermal module to its corners opposite the coolant connections, which is why photothermal modules according to the invention are also ideally suited as solar or solar / air absorbers in a so-called ice storage heat exchanger system.
    The invention will now be explained by way of example with reference to the accompanying drawings using preferred embodiments of a photothermal module. They show schematically:<tb> Fig. 1 <SEP> a preferred photothermal module according to the invention in a plan view;<tb> Fig. 2 <SEP> an enlarged section of the photothermal module from FIG. 1 in the area of the coolant connection for the supply line for coolant;<tb> Fig. 3 <SEP> shows a cross-sectional illustration of the photothermal module from FIG. 2 along the section line “A”;<tb> Fig. 4 <SEP> shows a cross-sectional illustration of the photothermal module from FIG. 2 along the section line “B”;<tb> Fig. 5 <SEP> shows a longitudinal sectional illustration of the photothermal module from FIG. 2 along the section line “C”;<tb> Fig. 6 <SEP> an enlarged detail of the longitudinal sectional illustration of the photothermal module from FIG. 5;<tb> Fig. 7 <SEP> shows a longitudinal sectional illustration of the photothermal module from FIG. 2 along the section line “D”;<tb> Fig. 8 <SEP> an enlarged detail of the longitudinal sectional illustration of the photothermal module from FIG. 7;<tb> Fig. 9 <SEP> a photothermal module field with six photothermal modules each connected in series as described above in a plan view; and<tb> Fig. 10 <SEP> a detail of the photothermal module field analogous to FIG. 9 as part of an integral roof assembly in a lateral sectional view.
    In the following description of the preferred embodiments of the present invention, the same reference symbols denote the same or comparable components.
    Fig. 1 a preferred photothermal module 1 according to the invention in a plan view. The photothermal module 1 with a length L and a width B that can be adapted to the respective needs comprises a photovoltaic module 10 and a heat sink 20 with an absorber plate 21 and a conduction plate 22 (see in detail FIGS. 3 to 8). Particularly suitable absorber sheets 21 are those made from chromium steel with an austenitic or particularly preferably ferritic structure. An inlet line 24 for coolant extends on one of the transverse sides 20.3 of the cooling body 20 and has a coolant connection 23 at one end of the inlet line 24. A drain line 27 for the coolant extends on the other transverse side 20.4 of the cooling body 20 and has a coolant connection 26 at one end of the drain line 27. In addition, a plurality of longitudinal lines 29.a-29.n formed from the absorber plate 21 and the line plate 22 and arranged next to one another are provided, which connect the inlet line 24 to the outlet line 27 without crossing. It is shown how preferably between ten and fifty or particularly preferably thirty plus / minus one to three or in particular twenty-eight longitudinal lines 29.1 to 29.28 can be formed in the cooling body 20. Finally, the coolant connection 23 of the supply line 24 is formed adjacent to the same longitudinal side 20.2 as the coolant connection 26 of the drainage line 27.
    FIG. 2 shows an enlarged section of the photothermal module 1 from FIG. 1 in the area of the coolant connection 23 for the supply line 24 for coolant. It can be seen how a passage 24.1 acting as a throttle is formed between the inlet line 24 for coolant and the longitudinal lines 29.1 to 29.n. Likewise, a passage 27.1 acting as a throttle is also formed between the longitudinal lines 29.1 to 29.n and the discharge line 24 for coolant (cf. FIG. 1).
    [0030] FIG. 3 shows a cross-sectional illustration of the photothermal module 1 from FIG. 2 along the section line “A”. According to the invention, the respective channel cross-section of one of the passages 24.1 and / or 27.1 acting as a throttle has a ratio between 1: 3 and 1:10 or, in a particularly preferred development of the invention, a ratio of to the respective channel cross-section of one of the inlet 24 or outlet lines 27 for coolant about 1: 5.
    FIG. 4 shows a cross-sectional illustration of the photothermal module 1 from FIG. 2 along the section line “B”. According to the invention, the respective channel cross-section of one of the passages 24.1 and / or 27.1 acting as a throttle has a ratio between 1: 1.5 and 1: 2.5 or in a particularly preferred development of the invention to the respective channel cross-section of one of the longitudinal lines 29.1 to 29.n Ratio of about 1: 2.
    This targeted, fluidically optimized setting of the channel cross-sectional ratios makes it possible to form the coolant connection 23 of the inlet line 24 adjacent to the same longitudinal side 20.2 as the coolant connection 26 of the outlet line 27 without having to accept major losses in flow efficiency. As a result, in particular more than three photothermal modules 1 can advantageously be connected in series while still ensuring a uniform flow distribution of the coolant in the photothermal modules 1, a possibility of combining the photothermal modules of the prior art, which are based on the Tichelmann principle are interconnected, do not offer.
    [0033] FIG. 5 shows a longitudinal sectional illustration of the photothermal module 1 from FIG. 2 along the section line “C”. According to a preferred development, the channel cross-section of longitudinal lines 29.1 to 29.n can be designed to be uniform or uneven. In particular, the respective degree of unevenly formed channel cross-sections in such longitudinal lines 29.1 to 29.n, which are arranged closer to the longitudinal side 20.2, adjacent to which the coolant connections 23 or 26 are formed, to such longitudinal lines 29.1 to 29.n, which are closer to the Coolant connections 23 or 26 are arranged opposite longitudinal side 20.1, decrease continuously or in groups (not shown). Alternatively or cumulatively, the cross section of the passages 24.1 and / or 27.1 acting as throttles in such longitudinal lines 29.1 to 29.n, which are arranged closer to the longitudinal side 20.2, adjacent to which the coolant connections 23 or 26 are formed, to those in longitudinal lines 29.1 to 29.n, passages 24.1 or 27.1 which act as a throttle and which are arranged closer to the longitudinal side 20.1 opposite the coolant connections 23 or 26 increase continuously or in groups (likewise not shown).
    FIG. 6 shows an enlarged detail of the longitudinal sectional view of the photothermal module 1 from FIG. 5. It can be seen how the absorber sheet 21 can be made somewhat smaller than the conduction sheet 22. In the edge region 36, the absorber plate 21 can be welded point-wise to the conduction plate 22, which is indicated by weld points 35. The welding points 35 can also be elongated, linear, section-wise or even continuous (not shown). An adhesive zone 30 can also be located in the edge region 36. There the absorber plate 21 and the conduction plate 22 can be glued to the underside of the photovoltaic module 10. The adhesive preferably also serves as a sealing compound in order to seal the gap between the PV module 10 and the absorber 20. As a result, the PV module 10 and the absorber 20 can advantageously be connected to one another without a frame. This in turn has the advantage that water and snow can flow off or slide off unhindered and the modules 1 are less contaminated. With the exception of the adhesive zones 30, 31, the absorber 20 also rests directly on the rear side of the PV module 10, which, in contrast to full-surface adhesive bonding or lamination, has a particularly favorable effect on the direct heat transfer.
    FIG. 7 shows a longitudinal sectional illustration of the photothermal module 1 from FIG. 2 along the section line “D”. The edge region 36 is designed as described in the embodiment according to FIG. 6.
    Fig. 8 shows an enlarged detail of the longitudinal section of the photothermal module from Fig. 7. It can be seen how in a preferred development for the bonding of photovoltaic module 10 and heat sink 20 in the absorber sheet 21 partial adhesive zones 30, 31 in the form of, in particular formed by beads 32, depressions are formed. In order to bring the absorber plate 21 into permanent contact with the underside of the photovoltaic module 10 on the one hand and to be able to connect it to the conduction plate 22 on the other hand, the absorber plate 21 preferably has between the longitudinal lines 29.a to 29.n in particular through beads 32 formed depressions. Within such beads 32, for example, the absorber plate 21 and the conduction plate 22 can be suitably welded. The depressions in the absorber sheet 21 created by the beads 32 can also be at least partially filled with adhesive and thus form adhesive zones 31. The adhesive ensures that the absorber sheet 21 is connected to the underside of the photovoltaic module 10 in the area of the adhesive zones 31 and is in contact with the underside of the photovoltaic module 10 in the contact area 34. This advantageously ensures optimal heat transfer.
    9 shows a photothermal module field, each with preferably six photothermal modules 1 connected in series, as described above, in a perspective top view. It can be seen how the photothermal modules 1 are mounted at an average angle of inclination to the sun and are connected to one another via coolant connecting lines 42, so that the longitudinal side 20.2 of each photothermal module 1, adjacent to which the coolant connection 23 of the supply line 24 and the coolant connection 26 of the drainage line 27 are formed, have a higher position than the respective opposite longitudinal side 20.1 of said photothermal modules 1. Such an assembly advantageously allows the operation of a photothermal module field in a method that a so-called U-flow through the photothermal modules 1 realized, so that coolant introduced via a supply connection line 40 or via a coolant connection line 42 sinks downward in the supply line 24 away from the coolant connection 23 and heated coolant collected in an outlet line 27 rises therein 27 up to the coolant connection 26.
    FIG. 10 shows a detail of the photothermal module field analogous to FIG. 9 as part of an integral roof assembly in a lateral sectional view. Since the coolant connections 23 or 26 for the inlet 24 or outlet lines 27 are designed according to the invention on the same longitudinal side 20.2 of the photothermal module 1, preferably mounted in a higher position, photothermal modules 1 designed according to the invention are also ideally suited for So-called integral roofs, in which higher-lying photothermal modules 1 partially overlap lower-lying photothermal modules 1, since only coolant connections 23 or 26 that have already been connected are overlapped, while coolant connections 23 or 26 that are still to be connected always remain accessible. It is also shown how so-called junction boxes 60 can be used as connecting elements to connect the photovoltaic modules 10.
    With the present invention, four to eight, preferably six, photothermal modules 1 can be connected in series to form a photothermal module field without any problems, without having to accept significant losses in flow distribution. When optimizing the flow cross-sections in the photothermal module 1, the interconnection can be increased to eight to twelve photothermal modules 1; with sufficiently large inlet and outlet lines 27 also to a photothermal module field with up to twenty photothermal modules 1. The serial connection leads to simpler assembly processes, also saves material costs and is therefore cheaper than known photothermal module fields 1. Finally, support according to the invention Photothermal modules 1 also enable the economical operation of a photothermal module field, since the implementation of a so-called U-flow through the individual photothermal modules 1 uses the thermal laws in the system in an energy-efficient manner, i.e. coolant introduced in a higher position in the supply line 24 in the direction of conveyance sinks at the bottom and heated coolant, discharged in a higher position of a drain line 27, rises upwards. In both cases, the thermal in the system does not work against the direction of conveyance - as in some cases in the prior art - but advantageously supports the flow in the conveying direction noticeably.
    Since the inlet line 24 and outlet line 27 for coolant are each formed along the same transverse side 20.3 or 20.4, these connecting longitudinal lines 29.a to 29.n can be formed next to one another and free of intersections. This advantageously ensures that the photothermal module 1 flows through to its corners opposite the coolant connections 23, 26, which is why photothermal modules 1 according to the invention are also ideally suited as solar or solar / air absorbers in a so-called ice storage heat exchanger system.
    The present invention is ideally suited for installation in so-called integral roofs and / or as a solar or solar / air absorber in so-called ice storage heat exchanger systems.
    List of reference symbols
    [0042]<tb>I<SEP> <SEP> photothermal module<tb> <SEP> 10 <SEP> photovoltaic module<tb> <SEP> 20 <SEP> heat sink<tb><SEP> <SEP> 20.1 (lower) long side of the heat sink<tb><SEP> <SEP> 20.2 (upper) long side of the heat sink<tb><SEP> <SEP> 20.3 (left) transverse side of the heat sink<tb><SEP> <SEP> 20.4 (right) transverse side of the heat sink<tb> <SEP> 21 <SEP> absorber sheet<tb> <SEP> 22 <SEP> conduit plate<tb> <SEP> 23 <SEP> coolant connection for supply line 24<tb> <SEP> 24 <SEP> supply line for coolant<tb><SEP> <SEP> 24.1 passage acting as a throttle<tb> <SEP> 26 <SEP> coolant connection for drain line 27<tb> <SEP> 27 <SEP> drain line<tb><SEP> <SEP> 27.1 passage acting as a throttle<tb> <SEP> 29 <SEP> straight line<tb><SEP> <SEP> 29.1 first straight line<tb><SEP> <SEP> 29.2 second straight line<tb><SEP> <SEP> 29.3 third longitudinal line<tb><SEP> <SEP> ...<tb><SEP> <SEP> 29.n n-th longitudinal line<tb> <SEP> 30 <SEP> adhesive zone<tb> <SEP> 31 <SEP> adhesive zone<tb> <SEP> 32 <SEP> surround<tb> <SEP> 34 <SEP> contact area<tb> <SEP> 35 <SEP> Welding point / welding points<tb> <SEP> 36 <SEP> border area<tb> <SEP> 40 <SEP> connecting cable<tb> <SEP> 41 <SEP> outgoing connection cable<tb> <SEP> 42 <SEP> coolant connection line<tb> <SEP> 60 <SEP> Junction Box<tb> <SEP> 70 <SEP> Substructure for integral roof design<tb> <SEP> L <SEP> length<tb> <SEP> B <SEP> width
    权利要求:
    Claims (14)
    [1]
    1. Photothermal module (1),- in which a photovoltaic module (10) is provided,- in which a heat sink (20) with an absorber plate (21) and a conduction plate (22) is provided,- in which an inlet line (24) is provided for coolant, which extends on one of the transverse sides (20.3) of the cooling body (20) and has a coolant connection (23) at one end of the inlet line (24),- In which a drain line (27) is provided for the coolant, which extends on the other transverse side (20.4) of the heat sink (20) and has a coolant connection (26) at one end of the drain line (27),- in which a plurality of longitudinal lines (29.1-29.n) formed from the absorber plate (21) and the line plate (22) and arranged next to one another are provided which connect the inlet line (24) to the outlet line (27) without crossing,- In which between the inlet line (24) for coolant and the longitudinal lines (29.1-29n) a passage (24.1) acting as a throttle is formed,- and in which between the longitudinal lines (29.1-29n) and the drain line (24) for coolant a passage (27.1) acting as a throttle is formed,characterized,- that the coolant connection (23) of the inlet line (24) is formed adjacent to the same longitudinal side (20.2) as the coolant connection (26) of the discharge line (27),-that the respective channel cross-section of one of the passages (24.1, 27.1) acting as a throttle has a ratio of between 1: 3 and 1:10 to the respective channel cross-section of one of the inlet (24) or outlet lines (27) for coolant,- and that the respective channel cross-section of one of the passages (24.1, 27.1) acting as a throttle has a ratio between 1: 1.5 and 1: 2.5 to the respective channel cross-section of one of the longitudinal lines (29.1-29.n).
    [2]
    2. Photothermal module (1) according to claim 1, in which the respective channel cross-section of one of the passages (24.1, 27.1) acting as a throttle has a ratio to the respective channel cross-section of one of the inlet (24) or outlet lines (27) for coolant- from about 1: 5having.
    [3]
    3. Photothermal module (1) according to claim 1 or 2, in which the respective channel cross-section of one of the passages (24.1, 27.1) acting as a throttle to the respective channel cross-section of one of the longitudinal lines (29.1-29.n) has a ratio- from about 1: 2having.
    [4]
    4. Photothermal module (1) according to one of claims 1 to 3, in which the inlet line (24) and / or the outlet line (27) for coolant is flat on its side facing the photovoltaic module (10) and on its opposite side , the side facing away from the photovoltaic module (10) is bent, in particular in the shape of a basket arch.
    [5]
    5. Photothermal module (1) according to one of the preceding claims, in which the longitudinal lines (29.1-29.n) are flat on their side facing the photovoltaic module (10) and on their opposite side, the photovoltaic module (10) turned away from the side, in particular in the shape of a basket arch.
    [6]
    6. Photothermal module (1) according to one of the preceding claims, in which in the heat sink (20)- between ten and fifty- or thirty plus or minus one to three- or twenty-eightLongitudinal lines (29.1-29.n) are formed.
    [7]
    7. Photothermal module (1) according to one of the preceding claims, in which the channel cross-section of longitudinal lines (29.1-29.n) is formed uniformly or unevenly.
    [8]
    8. Photothermal module (1) according to one of the preceding claims, in which the respective degree of unevenly formed channel cross-sections in such longitudinal lines (29.1-29.n), which are arranged closer to the longitudinal side (20.2), adjacent to which the coolant connections (23 , 26) are formed, to such longitudinal lines (29.1-29.n), which are arranged closer to the longitudinal side (20.1) opposite the coolant connections (23, 26), decreases continuously or in groups.
    [9]
    9. Photothermal module (1) according to one of the preceding claims, in which the cross section of the passages (23.1; 27.1) acting as a throttle in such longitudinal lines (29.1-29.n) which are arranged closer to the longitudinal side (20.2), adjacent to which the coolant connections (23, 26) are formed, to passages (23.1; 27.1) which act as throttles in longitudinal lines (29.1-29.n) and which are arranged closer to the longitudinal side (20.1) opposite the coolant connections (23, 26) are increasing steadily or in groups.
    [10]
    10. Photothermal module (1) according to one of the preceding claims, in which partial adhesive zones (30, 31) in the form of depressions are formed for bonding the photovoltaic module (10) and heat sink (20) in the absorber plate (21).
    [11]
    11. Photothermal module (1) according to one of the preceding claims, in which the absorber plate (21) is made of chromium steel with a ferritic or austenitic structure.
    [12]
    12. Photothermal module array comprising several, at least thermally connected in series, photothermal modules (1) according to one of the preceding claims, which are mounted at a mean angle of inclination to the sun and are connected to one another via coolant connecting lines (42), so that the longitudinal side (20.2) of each photothermal module (1), adjacent to which the coolant connection (23) of the inlet line (24) and the coolant connection (26) of the drainage line (27) are formed, has a higher position than the respective opposite longitudinal side (20.1) said photothermal modules (1).
    [13]
    13. A method for operating a photothermal module array according to claim 12, which realizes a so-called U-flow through the photothermal modules (1) so that coolant introduced into it (24) from the coolant connection (23) in an inlet line (24) sinks at the bottom and heated coolant collected in a drain line (27) rises up to the coolant connection (26).
    [14]
    14. Use of a photothermal module (1) according to one of the preceding claims 1 to 11 or a photothermal module array according to claim 12 as a solar or solar / air absorber in an ice storage heat exchanger system.
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    同族专利:
    公开号 | 公开日
    DE102019115076A1|2020-12-10|
    DE102019115076B4|2022-01-27|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2967817B1|2010-11-22|2013-08-16|Solaire 2G|HYBRID SOLAR PANEL.|
    SE539036C2|2014-04-30|2017-03-28|Solarus Sunpower Sweden Ab|Photovoltaic thermal hybrid solar collector|
    CH712171B1|2016-02-22|2020-03-13|Pvt Solar Ag|Photothermal module and photothermal module field.|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102019115076.0A|DE102019115076B4|2019-06-04|2019-06-04|Photothermic module, photothermic module array and related operating method and use|
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