• 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:
    SUMMARY A transport and fish lock comprises an 8rd inlet (5) and an 8th outlet (9) intended to be placed in river communication with an upper water volume, and a lower outlet (6) and a lower inlet (8) intended to be placed in river communication with a lower water volume. The upper inlet and the lower outlet communicate via a downstream passage (2) having a first effective flow area, and the lower inlet and the upper outlet communicate via an upstream passage (3) having a second effective flow area. The downstream passage includes a first helical rotor (10) having a reciprocating direction which, by a downstream flow, causes the first rotor to rotate about its axis'. The upstream passage comprises a second helical rotor (14), the rotors being interconnected so that the first rotor drives the second rotor in rotation about its axis, and the second rotor (14) has a direction of travel which in said rotation produces an upstream direction. Ode.
    公开号:SE1350969A1
    申请号:SE1350969
    申请日:2013-08-23
    公开日:2015-02-24
    发明作者:Arne Fjälling
    申请人:Arne Fjälling；
    IPC主号:
    专利说明:

    TECHNICAL FIELD OF THE INVENTION The present invention relates to a transport & which is effective bidirectional transport of water and aquatic organisms, including fish, between a volume of water located at a lower level and a volume of water located at a level higher than the lower level. .
    BACKGROUND AND BACKGROUND ART The invention has its background in the desire and need to offer safe hiking trails for fish and other aquatic organisms past power plants, dams and other water facilities.
    The invention is based on the use of an Archimedes screw which is driven in rotation and thereby acts to lift liquid and in-wash organisms from the lower bellows water volume to the higher coated water volume. The invention can, by its function as transport & of water, also serve as a pump effective for collecting water from the lower to the higher coated water volume.
    Archimedes screws have previously been used Mr these dndamal. Dutch patent number NL 1029915 shows an example of the use of a motor-driven screw for lifting water and fish over a dam building. Another example of a motor-driven screw in an apparatus for capturing and feeding live fish from a basin is shown in U.S. Patent Nos. 4,217, 718. A third example of utilizing a motor-driven screw for feeding fish is shown therein. International Publication WO 95/15079.
    Common to these known solutions is that they are based on the use of a single, motor-driven screw active for one-way transport of water and fish. 2 A pump unit in which double Archimedean screws are used in the Japanese publication JP 57088277 A. In this pump an inner screw is mounted in coaxial relation to an outer screw, the screws there being assigned a drive means and by a force distribution device individually drivable in rotation for POSSIBLE regulation and adaptation of the pump's lifting capacity.
    In addition, it should be understood that it is from the power industry to use an Archimedes screw for energy production by arranging the screw so that it is driven in rotation by a water flow from a higher to a lower beldgen water volume, the screw being connected to a generator for electricity production.
    BRIEF SUMMARY OF THE INVENTION The invention aims at an efficient utilization of Archimedes screws in conjunction with a bidirectional transport of water and aquatic organisms, including fish, between a volume of water beldgen at a lower level and a volume of water coated at a level with the lower level. .
    The object is achieved in the form of a conveyor which comprises an upper inlet and an upper outlet intended to be placed in river communication with the upper water volume, and a lower outlet and a lower inlet intended to be placed in river communication with the lower water volume. The upper inlet and the lower outlet communicate via a downstream passage having a first effective flow area, and the lower inlet and the upper outlet communicate via an upstream passage having a second effective flow area. The downstream passage comprises a first helical rotor with a direction of travel which, by a downstream direction, causes the first rotor to rotate about its axis. The upstream passage comprises a second helically rotating rotor, the rotors being interconnected so that the first rotor drives the second rotor in rotation about its axis, and the second rotor has a direction of travel which in said rotation produces an upstream directional flow.
    The invention can be realized in several embodiments. Alternatively, the first and second rotors may be indirectly connected to each other via a power transmission for rotation 3 about separate axes of rotation, with or without a generator and drive unit not included in the power transmission. It is preferred, however, that the first and second rotors are directly and fixedly connected to each other for co-rotation about one and the same, common, axis of rotation.
    A particularly preferred embodiment comprises that the first and the second rotor are inboard coupled in a concentric relationship, and the second rotor is carried in the rotation of the first rotor about an axis of rotation of the Mr rotors. It will be appreciated that the second rotor in this embodiment is driven by the first rotor to rotate in the same direction of rotation as the first rotor, and consequently has a direction of travel which is opposite to the direction of travel of the first rotor.
    In an alternative embodiment, the driving first rotor is arranged peripherally in an annular space formed between an outer casing and an inner casing concentrically arranged with the outer casing, the driving rotor forming a helically moving cradle connecting the outer and inner housings of transport. The driven second rotor is then supported on the inside of the inner housing. The outlet from the upstream passage with the driven rotor in this embodiment is axially outside the inlet to the downstream passage.
    In a more preferred embodiment, the driving first rotor is centrally disposed in a tubular inner housing, while the driven second rotor is circumferentially disposed in an annular space formed between the inner housing and an additional outer housing, concentric with the inner housing. The driven second rotor thereby forms a helical cradle which connects the outer and inner shafts of the conveyor.
    The inlet to the downstream passage with the driving rotor is in this embodiment suitably bellows axially outside the outlet from the upstream passage. The length of the downstream passage may be adjustable by means of a ring which is axially movably arranged in the upstream covered end of the downstream passage, which ring forms an inlet to the downstream passage installable to the level of the upper water volume.
    Likewise, in a preferred embodiment, the inlet to the downstream passage may be surrounded by a radially projecting, flow-affecting collar. The said collar is in 4 cases effective to flow-wise separate a flow flowing into the downstream passage from a flow flowing out of the upstream passage.
    In a preferred embodiment, the inlet to the upstream passage may extend axially past the outlet from the downstream passage. The inlet to the upstream passage is then typically conically diverging in the upstream flow direction, while the outlet & to the downstream passage may be conically tapered in the downstream flow direction.
    A lacquer flow discharged from the downstream passage may be arranged to open near the inlet to the upstream passage, in such a way that the lacquer flow attracts and attracts rising migratory fish to the inlet of the upstream passage.
    Further details and aspects of the invention will become more apparent from the following detailed description.
    BRIEF DESCRIPTION OF THE DRAWINGS Exemplary embodiments of the invention are explained in more detail below with reference to the accompanying schematic drawings, of which Fig. 1 shows a transport & fish lock in a first embodiment, Fig. 2 shows a cross section along the line II-II through the conveyor of Fig. 1, and Fig. 3 shows an alternative embodiment of a transport & and fish lock.
    DETAILED DESCRIPTION OF PREFERRED EMBODIMENT EXAMPLES In a partially broken away side view, Fig. 1 shows a transport & and fish lock 1 forming communication path between an upper water volume, the surface of which is bellows at a level. Li, and a comparatively lower lying volume of water whose surface is beldgen at a level. L2. The conveyor 1 dr operates for bidirectional communication between the two water volumes. For the purpose, the conveyor 1 comprises a downstream passage 2 and an upstream passage 3. The downstream passage 2 is delimited within a tubular inner casing 4 and extends between an inlet 5 in the right lying end of the downstream passage and an outlet 6 in the lower end of the downstream passage. lying spirit. The upstream passage 3 is delimited by the inner casing 4 and a tubular outer casing 7 arranged concentrically with the inner casing, and thus extends annularly between an inlet 8 in the bearing end of the upstream passage and an outlet 9 in the upstream passage. Spirit.
    In the downstream passage 2 there is arranged a first rotor 10 with a spirally extending cradle or vane 11 which along its outer periphery is anchored at the inside of the inner housing 4. The first rotor 10 has a central shaft 13, which extends axially past the inlet 5 to the downstream passage 2. The first rotor 10 has such a direction of travel that an ode of water through the downstream passage causes the rotor 10 to rotate about its axis of rotation, for example in a direction of rotation R according to Fig. 2.
    In the upstream passage 3 there is arranged a second rotor 14 with a helical rock or vane 15 which extends its outer periphery there anchored at the inside of the outer casing 7. This second rotor 14 has an inner periphery which is anchored at the outside of the inner casing. 4, and the second rotor 14 thus connects the outer and inner housings and the two rotors to form a co-rotating unit. This unit, i.e. the conveyor or fish lock 1, is rotatably mounted in the step between the upper and lower water volumes and more specifically in the rotary bearings 16 and 17 dimensioned for this purpose.
    It will be appreciated that the first rotor 10 causes the driving rotor which causes the second and driven rotors 14 to rotate in the same direction of rotation as the first rotor 10. However, the second rotor 14 has a direction of rotation opposite to the direction of rotation of the first rotor, whereby the second rotor 14 at said rotation generates an upstream directed flow in the upstream passage 3.
    Between successive varies of the vane 15 in the helically rotating second rotor 14 30, in the annular space between the inner and outer housings, discrete 6 volumes of water or basins 18 are formed which are successively lifted to the outlet 9 and emptied into the upper volume of water.
    In order to attract migratory fish and other aquatic organisms to migrate into these basins 18, several cooperating measures have been taken in the embodiment shown in Figs. 1 and 2. One of these steps comprises that the inlet part 8 of the upstream passage extends axially past the outlet 6 from the downstream passage, and opens diverging in the upstream flow direction. In this way a lower entrance to the upstream passage 3 is created. Another measure comprises that the outlet part of the downstream passage extends conically tapered in the downstream flow direction. In this way, space is formed to create, via openings 19 in the conical lower spirit of the inner cavity, a paint flow 20 which attracts the migratory fish to the basins 18 in the inlet part of the upstream passage.
    A cap flow can alternatively or in addition be created by the rotor in the upstream passage, in the area of the inlet to the upstream passage, being made with flood openings through which water can leak downstream from the upstream direction (not shown in the drawings).
    A third measure 41 to support the migration of the fish in the basins 18 is that the height of the helical vane 15 is arranged to increase successively, seen in the radial direction, from the mouth of the outer casing 7 until the vane meets and connects to the outside of the inner casing. 4. In this way, fish attracted to the fish lock will be driven in a mild salt into the initially relatively open basins 18, ay a bottom rising towards the fish, to be finally caught in a confined, delimited volume of water between the inner and outer shafts of the conveyor.
    The migration of the fish into and out of the upstream passage, or in other words into and out of the helical rotor 14, is also facilitated by both inlet 8 and outlet 9 being at stone water depths corresponding to the inlet and outlet of the downstream passage. This is due in part to the fact that the outer casing 7 and the upstream passage extend axially past the inner casing 4 and the downstream passage in the lower spirit of the conveyor, i.e. in the lower coated water volume 7. Said depth ratio is also partly due to the fact that the inner casing 4 and the downstream passage extend axially past the outer casing 7 and the upstream passage in the upper end of the conveyor, in the higher covered volume of water.
    For the purpose of flow-separating the incoming and outgoing flows in the carrier end of the conveyor, a radially projecting collar 21 may be arranged to surround the inlet to the downstream passage.
    Furthermore, as shown in the exemplary embodiment, a ring 22 can be movably arranged in the upper spirit of the inner housing 4, whereby the conveyor can, if necessary, be installed to varying levels Li, and even if desired be installed with respect to regulating the inflow to and octet. through the downstream passage.
    It will be appreciated that the dimensions of the conveyor 1 should be adapted to each application of such salt that the energy in the downstream river offsets the work required of the RV to lift the upstream flow as well as the unavoidable losses associated with the conveyor rotation and storage. Typically, therefore, the downstream passage has a wide and effective flow area that is larger than the river and the effective flow area of the upstream passage. By effective flow area is meant the actual average cross-sectional area of the flow through the respective passage, as schematically illustrated in Fig. 2. 1 15.gra solid guidelines for dimensioning of a conveyor / fish lock 1 according to Figs. 1 and 2 can therefore not be given . However, it can be foreseen that in a conveyor intended RV rising salmon and sea trout, for example, can suitably kid: vas basins 18 accommodating in the order of 500-1000 liters of water. For such volumes of water, a radius of the order of at least 1.5 - 2.5 meters may be required for the outer casing 7.
    However, the inclination of the conveyor, the pitch angle of the rotor and the tightness between the turns of the helical rotors affect different dimensions and the flows in a way that must be taken into account separately from case to case.
    If prerequisites exist in the form of water supply, drop height and drop angle, etc., surplus energy can be recovered by operatively coupling the first and driving rotors 10 to a rotating machine 23, such as a generator 23, set as 8 schematically indicated in Fig. 1. This Solution can be particularly advantageous in applications of the upstream passage can be periodically closed during seasons when no rise of fish is expected to occur.
    It should be added that migration of risk downstream can take place without risk because the driven rotor 10 does not rotate faster than the flow rate of the water and therefore cannot harm fish that follow the water through the downstream passage. Darti11 spares the fish from the rapid pressure changes to which it is usually subjected when passing the impeller in a conventional turbine.
    Fig. 3 shows an overview of an alternative embodiment of a conveyor 100 operative for bi-directional transport of water and aquatic organisms, including fish, between an upper volume of water lying at a higher level. L1 and a lower volume of water lying at a level L2 lower in comparison with the higher level.
    The conveyor 100 comprises a driving first rotor 101 which, in the form of a helical rocker or vane 102, connects a tubular outer housing 103 in a concentric relationship to a tubular inner housing 104. The rotor 101 is thus arranged in an annular downstream passage 105 which extends between an inlet 106, in communication with the upper water volume, and an outlet 107 in communication with the lower water volume. The conveyor 100 further comprises a driven second rotor 108, the direction of travel of which is opposite to the direction of travel of the driving rotor 101, and which in the form of a helical rocker or vane 109 is connected to the inside of the inner housing 104. The rotor 108 is thus arranged in a tubular upstream passage 110 extending between an inlet 111, in communication with the lower water volume, and an outlet 112 in communication with the upper water volume.
    In other words, in the conveyor 100, the outlet 112 opens from the upstream passage axially outside the inlet 106 to the downstream passage. Due to this, in comparison with the conveyor 1, it becomes possible to lift water from the lower water volume to a higher level with the conveyor 100. L3 Above level Li of the Upper water volume. This possibility can, where appropriate, be used to lift water from the lower water volume to a gutter 113, which can be arranged to lead the required water away from the inlet 106 to the 9 downstream passage. The design with an assigned gutter can be advantageous in connection with the occurrence of less strong swimmers who should be moved away from the inlet to the downstream passage. The assigned channel may, where appropriate, be used to divert the required water and living organisms past intermediate migration barriers.
    The double-acting conveyor of the invention, which in one of its primary areas of use can also be described as a fish lock, has been shown in two embodiments, both of which can be combined to the general description of a rotating machine which is driven by an downstream Wide RV. generate an upstream return flow to the same body of water, such as a watercourse, or between discrete volumes of water as in a terrace cultivation or the like. It is to be understood that on the basis of the description of the invention presented in the application, deviations from details in the embodiments shown may be made without departing from the spirit of the invention, as set forth in the appended claims.
    权利要求:
    Claims (15)
    [1]
    An upper inlet (5; 106) and an upper outlet (9; 112) intended to be placed in river communication with the upper water volume, and a lower outlet (6; 107) and a lower inlet (8; 111) intended to be placed in river communication with the lower volume of water, 2. the upper inlet and the lower outlet communicate via a downstream passage (2; 105) having a first effective flow area, and the lower inlet and the upper outlet communicate via an upstream passage (3). 110) having a second effective flow area, and used in the downstream passage comprises a first helical rotor (10; 101) having a direction of travel which, by a downstream flow, causes the first rotor to rotate about its axis, and the the upstream passage comprises a second helical rotor (14; 108), which rotors are interconnected so that the first rotor (10; 101) drives the second rotor (14; 108) in rotation about its axis, and wherein the second rotor (14 ; 108) have once direction which in said rotation produces an upstream directed flow (3; 110).
    [2]
    Transport & according to claim 1, van in the second rotor (14; 108) has a direction of travel which is opposite to the direction of travel of the first rotor (10; 101), and is driven by the first rotor to rotate in the same direction of rotation as the first rotor.
    [3]
    Transport & according to claim 1 or 2, used in the first and the second rotor Or are coupled in a concentric relationship and the second rotor (14; 108) is carried in the rotation of the first rotor (10; 101) about an axis of rotation common to the rotors. 11
    [4]
    Conveyor according to claim 3, used in the driving first rotor (10) is centrally arranged in a tubular inner housing (4), and the driven second rotor (14) is arranged peripherally in an annular space between the inner housing (4) and an additional outer casing (7), concentric with the inner casing, the driven rotor (14) forming a helical yam connecting the outer and inner casings of the conveyor.
    [5]
    Conveyor according to claim 4, used in the inlet (5) of the downstream passage (2) with the driving rotor (10) is coated axially outside the outlet (9) from the upstream passage (3).
    [6]
    Transport according to claim 3, used in the driving first rotor (101) arranged peripherally in an annular space formed between an outer casing and an inner casing concentrically arranged with the outer casing, the driving rotor forming a helical rock which connects the outer and inner sheaths of the conveyor, while the driven second rotor (108) is supported on the inside of the inner sheath.
    [7]
    The conveyor of claim 6, used in the outlet (112) from the upstream passage (110) with the driven rotor (108) is located axially outside the inlet (106) to the downstream passage (105).
    [8]
    Transport & according to any one of claims 1-5, used in the inlet (8) to the upstream passage (3) is located axially outside the outlet (6) from the downstream passage (2).
    [9]
    A conveyor according to claim 8, used in the inlet (8) of the upstream passage is conically diverging in the direction of the river.
    [10]
    Transport & according to claim 9, used in the outlet (6) from the downstream passage is conically tapered in the flow direction.
    [11]
    Transport & according to claim 10, used in a lid flow (20) discharged from the downstream passage (2) there arranged to open near the inlet (8) to the upstream passage (3).
    [12]
    Transport & according to claim 5, used in the length of the downstream passage (2) which is adjustable by means of a ring (22) which is axially movably arranged in the 12 upstream bellows spirit of the downstream passage, which ring forms one to the bar. water volume level (L1) installable inlet to the downstream passage.
    [13]
    Conveyor according to claim 5, the inlet (5) of the downstream passage (2) is surrounded by a radially projecting, flow-affecting collar (21).
    [14]
    A conveyor according to claim 13, wherein said collar flow-wise separates a Wide flowing into the downstream passage from a flow flowing out of the upstream passage.
    [15]
    A conveyor according to any one of the preceding claims, wherein the driving rotor (10) is operatively connected to a rotating machine (23), such as a motor or a generator. itsf41,4117 AVOW 44t # 1 ‘2W / aa /
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    同族专利:
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1350969A|SE538319C2|2013-08-23|2013-08-23|Conveyor and fish lock|SE1350969A| SE538319C2|2013-08-23|2013-08-23|Conveyor and fish lock|
    CA2921671A| CA2921671C|2013-08-23|2014-08-25|Transporter and fish lock|
    US14/912,499| US10087907B2|2013-08-23|2014-08-25|Transporter and fish lock|
    PCT/SE2014/050963| WO2015026289A1|2013-08-23|2014-08-25|Transporter and fish lock|
    EP14838408.4A| EP3036376B1|2013-08-23|2014-08-25|Transporter and fish lock|
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