• 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 invention relates to a plant for generating energy with a water turbine (1), a water inlet (4) and a water outlet (5). It is primarily characterized in that one or more additional blades (8) are provided in the water inlet (4) and can be inserted into the water inlet (4). As a result, eddy formation in the water inlet (4) can be greatly reduced and thus enables the operating range to be expanded into the lower output range.
    公开号:AT521415A1
    申请号:T50568/2018
    申请日:2018-07-03
    公开日:2020-01-15
    发明作者:Ing Erich Wurm Dipl；Ing Bernd Nennemann Dipl
    申请人:Andritz Hydro Gmbh；
    IPC主号:
    专利说明:

    The invention relates to a plant for energy generation with a water turbine, a water inlet and a water outlet.
    Kaplan turbines, diagonal turbines, propeller turbines and tubular turbines in particular come into consideration as water turbines. In the lower power range of the turbines, i.e. at start, low power or a lock or sail operation in which water is passed over the turbines without generating turbine netting, there are strong pressure fluctuations due to vortices in the inlet between the idler and impeller of the turbine, which lead to vibrations. This limits the area of application of the turbine.
    For Francis turbines e.g. known from EP2399022A1 rotatable guide vanes in the water drain to stabilize the flow.
    The aim of the invention is therefore to reduce the formation of eddies in the water inlet of water turbines.
    This takes place according to the invention in that one or more blades are provided in the water inlet which can be inserted into the water inlet. As a result, the eddy formation can be reduced and the normal range of work can also be expanded for smaller services. As long as the blades are not inserted into the water inlet, there will be no changes in operating behavior. Existing systems can be retrofitted with these blades and thus enable extended operation.
    An advantageous development of the invention is characterized in that the blades are designed to be pivotable or insertable. As a result, if necessary, they can also be introduced into the water supply in a simple manner, if necessary by means of a drive.
    A favorable embodiment of the invention is characterized in that the blades are adjustable, in particular rotatable about their axis. This means that they can be adjusted in such a way that they specifically influence the flow and reduce the formation of eddies.
    A further embodiment of the invention is characterized in that several, preferably 4 to 8, additional blades are arranged on the circumference of the water inlet. If necessary, the flow in all areas of the water supply can be influenced.
    HA401225 AT
    2/12
    A favorable further development of the invention is characterized in that the water turbine is a Kaplan turbine, whereby it can also be a tubular turbine, a di agonal turbine or a propeller turbine. By influencing the flow to the turbine, especially in Kaplan, diagonal, propeller or tubular turbines, the efficiency in the lower power range can also be improved under certain operating conditions.
    An advantageous embodiment of the invention is characterized in that pneumatic or hydraulic cylinders or an electrically operated adjusting device are provided for adjusting the additional blades. The introduction of the additional blades into the water inlet can thus be controlled in a simple manner from a control room.
    The invention is described below by way of example with reference to the drawings, wherein
    I a system according to the invention with a Kaplan turbine,
    2 a system according to the invention with a tubular turbine,
    3 a shows a first variant of an additional blade in side view,
    3 b shows a first variant of an additional blade in view III-1II according to FIG. 3 a
    Fig. 4 a shows a second variant of an additional blade with the blade extended and
    Fig. 4 b shows a second variant with the blade retracted.
    1 shows a plant for energy generation with a water turbine 1, which is designed as a Kaplan turbine with a Kaplan impeller 2. The impeller 2 is connected to a shaft with a generator 3. The water is supplied radially here by means of a water inlet 4, which is designed in the form of a spiral. The water drain 5 is formed with a conical suction pipe. The water inlet 4 starts from a spiral through guide vanes 6, which are generally designed to be controllable. After the guide vanes 6 there is a deflection towards the impeller 2, the channel having a turbine cover 7 in the upper region. Openings are now provided in the turbine cover, through which additional blades 8 can be introduced into the water inlet 4. 1 shows a first variant of the additional blades 8 (see also FIGS. 3a and 3b),
    HA401225 AT 2/12 which can be swiveled into the water inlet 4. 4 to 8, additional blades 8 are preferably arranged over the circumference of the water inlet 4. These are introduced into the water inlet 4 as required to reduce the vortex formation. If necessary, only a part of the additional blades 8 can be inserted or removed. The introduction of the additional blades 8 into the water inlet 4 can be controlled from the control room. Fig. 1 also serves as an example for an embodiment in diagonal and propeller turbines. This differs from the embodiment shown in the sketch in FIG. 1 for Kaplan turbines only in that the shape of the impeller blades is generally different and in that the impeller blades are not adjustable.
    FIG. 2 shows a further variant of the invention with a system for generating energy with a water turbine 1, which is designed as a tubular turbine with an axial impeller 2 '. The same parts are subsequently provided with the same reference symbols. Here, too, the impeller 2 'is connected to a generator 3 by means of a shaft. The water inlet 4 takes place here through a pipe around the encapsulated generator to the axial turbine 2 '. In the water flow there are still guide vanes 6 which can be regulated. After the axial impeller 2 ', the water outlet 5 takes place through a conically diverging pipe. On the wall 7 'of the water inlet 4 there are several additional blades 8 which, as in the previous variant, can be introduced into the water flow through openings. Here, too, the variant according to FIGS. 3 a and 3 b is shown, wherein of course it can also be carried out according to FIGS. 4 a and 4 b or in another way. The control of the additional blades 8 is carried out analogously to a system according to FIG. 1, depending on the vortex formation.
    A variant of the additional blades 8 is shown in FIGS. 3 a and 3 b. The airfoil 9 is arranged to be pivotable about an axis 10 and has a lever 11. This lever 11 is connected to a pneumatic or hydraulic cylinder 12, or an electrically operated adjusting device, by means of which the airfoil 9 can be brought from the pivoted-out position into a pivoted-in position (airfoil 9 '). The pivoting takes place in a housing 13 which is fluidly connected to the water inlet 4 and sealed off from the outside. FIG. 3 b shows the view according to line III-III in FIG. 3 a, the position of the airfoil 9 being clearly visible in the pivoted-out position and in the pivoted-in position (9 ′). It can also be seen that the locking mechanism with lever 11 and cylinder 12 is located outside the housing 13. By using pneumatic or hydraulic cylinders 12,
    HA401225 AT 3
    4/12 or alternatively by an electrical adjustment device, the airfoil 9 can be swiveled in or swung out from the control room as required.
    FIGS. 4 a and 4 b show a second variant of the additional blades 8, the blade 9 being pushed into the water inlet 4 here. 4 a shows the position of the airfoil 9 in the extended state and FIG. 4 b the position of the airfoil 9 'in the retracted state. It can be seen here that the cylinder 12 is located in the housing 13 and must be appropriately sealed against the water by a stamp 14. By controlling the cylinders 12 from the control room, the airfoil 9 can be retracted or extended as required.
    The invention is not limited to the examples in the drawings. Other drives for the airfoils such as Spindles can be provided. The additional blades can also be arranged elsewhere in the water inlet.
    权利要求:
    Claims (10)
    [1]
    Expectations:
    1. Plant for energy generation with a water turbine (1), a water inlet (4) and a water outlet (5), characterized in that one or more additional blades (8) are provided in the water inlet (4), which are in the water inlet (4) can be introduced.
    [2]
    2. Plant according to claim 1, characterized in that the additional blades (8) are designed to be pivotable.
    [3]
    3. Plant according to claim 1, characterized in that the additional blades (8) are designed to be insertable.
    [4]
    4. Plant according to claim 1 or 2, characterized in that the additional blades (8) are adjustable, in particular rotatable about their axis.
    [5]
    5. Plant according to one of claims 1 to 4, characterized in that several, preferably 4 to 8, additional blades (8) are arranged on the circumference of the water inlet (4).
    [6]
    6. Plant according to one of claims 1 to 5, characterized in that the water turbine (1) is a Kaplan turbine.
    [7]
    7. Plant according to one of claims 1 to 5, characterized in that the water turbine (1) is a tubular turbine.
    [8]
    8. Plant according to one of claims 1 to 5, characterized in that the water turbine (1) is a di agonal turbine.
    [9]
    9. Plant according to one of claims 1 to 5, characterized in that the water turbine (1) is a propeller turbine.
    [10]
    10. Plant according to one of claims 2 to 9, characterized in that pneumatic, hydraulic cylinders (12) or electrically operated adjusting devices are provided for adjusting the additional blades (8).
    类似技术:
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    CH651633A5|1985-09-30|METHOD FOR OPERATING A TWO-STAGE PUMP TURBINE.
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    同族专利:
    公开号 | 公开日
    US10995727B2|2021-05-04|
    EP3591215A1|2020-01-08|
    EP3591215B1|2021-07-28|
    AT521415B1|2021-01-15|
    CA3048394A1|2020-01-03|
    US20200011285A1|2020-01-09|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    AT248255B|1962-10-15|1966-07-25|Sulzer Ag|Pump or pump turbine|
    DE1503279A1|1964-02-21|1970-04-09|Mitsubishi Heavy Ind Ltd|Hydraulic rotary machine|
    AT284034B|1966-04-20|1970-08-25|Ckd Blansko Zd Y Jiriho Dimitr|Hydraulic idler-controlled machine working as a turbine or pump|
    WO2012059174A2|2010-11-02|2012-05-10|Voith Patent Gmbh|Francis-type pump for a hydroelectric power plant|
    CH175431A|1933-03-25|1935-02-28|Sakowsky Alexander|Propeller turbine.|
    US2028368A|1934-03-31|1936-01-21|William M White|Hydraulic turbine|
    US4017211A|1975-09-17|1977-04-12|Aktiebolaget Karlstads Mekaniska Werkstad|Runner for hydrodynamic machines|
    FR2337821B1|1976-01-06|1979-07-06|Neyrpic Creusot Loire|
    US6016600A|1998-01-07|2000-01-25|Voith Hydro, Inc.|Method of assembling a turbine runner situated in a water passageway|
    DE102008017537A1|2008-04-03|2009-10-08|Voith Patent Gmbh|Tubular turbine generator unit|
    FR2942274B1|2009-02-18|2014-04-18|Alstom Hydro France|HYDRAULIC ENERGY CONVERSION INSTALLATION AND METHOD OF CONTROLLING SUCH INSTALLATION|
    FR2972032B1|2011-02-28|2013-03-29|Alstom Hydro France|AILET AND HYDRAULIC ENERGY CONVERSION INSTALLATION COMPRISING SUCH AILT|US10934992B2|2019-02-18|2021-03-02|Toto Ltd.|Hydraulic generator, spouting apparatus, and method for manufacturing hydraulic generator|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50568/2018A|AT521415B1|2018-07-03|2018-07-03|SYSTEM FOR ENERGY GENERATION|ATA50568/2018A| AT521415B1|2018-07-03|2018-07-03|SYSTEM FOR ENERGY GENERATION|
    EP19177279.7A| EP3591215B1|2018-07-03|2019-05-29|Installation for producing energy with a hydraulic turbine|
    CA3048394A| CA3048394A1|2018-07-03|2019-07-02|Power generation plant with kaplan, bulb, diagonal flow or propeller turbine|
    US16/460,256| US10995727B2|2018-07-03|2019-07-02|Power generation plant having a Kaplan, bulb, diagonal flow or propeller turbine|
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