DE202022001413U1 - Ocean current power plant for energy parks - Google Patents

Abstract

Sea current power plant for energy parks With this type of sea current power plant, new energy parks in the sea can advantageously be equipped with more units, as a much smaller distance between the units is made possible because of the compensation of the dynamic pressure on the power plant the reaction force of the centrifugal pump output (33) the power plant works and generates electricity at the location above the base weight (22) at full operation and at the same speed in opposite directions from the turbine elements (1) and (2), the propeller torque being (19) in (2) corresponds at least to the generator torque.

Description

In the case of the previously known ocean current power plants with pivoting rope holding structures to the bottom, larger safety distances from one another are required in a parking arrangement. With this new type of ocean current power plant, new energy parks in the sea can advantageously be equipped with more units, since a much smaller distance between the units is made possible because the problem is solved according to the invention by compensating for the back pressure of the flow as a result Reaction force of a centrifugal pump water output (33) generated by the turbine elements (1) and (2), so that this power plant remains in the same depth position above the base weight (22) of the site in full operation with the same speed of rotation of the turbine elements (1) and (2) Generating power, where the propeller torque of (2) is at least equal to the stator torque in (1).

The power plant is virtually weightless in the water due to the air volume in the housings and the propellers (32) and floats horizontally according to the position of the balanced overall center of gravity. This means that the power plant can also be raised and lowered vertically for maintenance work using the pulley connection (9) as a result of a minimum excess buoyancy provided.

The power plant essentially consists of an outer turbine element (1) and an inner turbine element (2), both of which form a generator, the interior being equipped with a magnet wheel (19) equipped with permanent magnets (20) and freely rotating on the outside encapsulated stator (12) is excited by the magnetic field-permeable window in a cylindrical shape (21). For each turbine element, the propeller (16) connected in (1) and arranged one behind the other (19) connected in (2) take the power for the drive torque to be applied from the incoming water flow. The electrical energy generation from the flow (33) by the generator and the drive for the centrifugal pump (23) and (24) is generated by both turbine elements together, each at the same speed, but rotating in opposite directions. The impeller (23) firmly attached to (10) in (1) is also used via the bearing (25) for a concentric, safe freewheeling of the turbine element (2) in (1) as well as the U-ring with bearing (30), which acts as Limiting the play on the hollow shaft (17).

The electrical energy generated is conducted from the stator via the encapsulated current/voltage converter (13) with power cable (14) to the “rotating” half of the inductive voltage/current transmission (3) in the power plant axis, which is connected to the holder (7) on (1 ) is firmly connected, with the opposite "standing" half (4) rotatably mounted in (7), but held in a stationary position during operation by the movable pulley connection (9) on it, as a power plant holding connection to the ground , so that the safe transmission of the current (11) to the base weight (22) is guaranteed.

The rake (8) is detachably screwed to (4) for cleaning work. In the housing (3) is the laminated transformer (5) and in (4) the one (6), which do not touch each other, but through the magnetic field-permeable windows (28) in the housings (3) and (4). 3-phase coils induce each other so that the electricity generated by the rotating power plant underwater can be transmitted to land.

The openings (29) allow the flow to enter the hollow shaft 17 from the side. The crane hook slinging means are provided in the housing (10, not shown) and can be mounted at appropriate points in relation to the overall center of gravity.

The extended water inlet opening of (1), together with the diffuser-like outlet opening of (2), ensures the best possible efficiency when generating energy from ocean currents.

Label list

Pos.1

Turbine component 1, consisting of (10), (16), (7), (17), ( 23) and (29)

Pos.2

Turbine component 2, consisting of (18), (19), (20), (24), (25), (29) and (30)

Pos.3

Rotating half of the inductive voltage/current transmission in the sealed housing belonging to (1)

Item 4

Standing half of the inductive voltage/current transmission in the sealed housing belonging to (2)

Pos.5

Sheet metal transformer with 3 legs and phase coils R,S,T on a cylindrical core

Pos.6

Sheet metal transformer with 3 legs and phase coils U,V,W on a cylindrical core

Item 7

Bracket for (3) and (4) connected to (1)

Pos.8

Rake screwed to (4)

Pos.9

Movable pulley connection in (4) to (22)

Pos.10

Welded housing of (1)

Item 11

Power cable to (22) routed to (9).

Item 12

Stator encapsulated

Pos.13

Current-voltage converter encapsulated

Item 14

Power cable from (12) via (13), (16), (17) to (3 routed in holes)

Pos.15

Water lubricated retaining ring from (4 )in (7)

Pos.16

Propeller blades from (1)

Pos.17

Hollow shaft of (1) connected to (16) and (3)

Pos.18

Housing of (2) connected to (19)

Pos.19

Polrad blades from (2)

Pos.20

Permanent magnetic poles isolated on (19)

Item 21

Magnetic field-permeable, sealed window made of welded-in austenitic sheet steel cylinder

Item 22

Basic weight with connections from (9) and (11)

Pos.23

Centrifugal pump impeller firmly on (10) of (1)

Pos.24

Centrifugal pump tail unit in (18) of (2)

Pos.25

Water-lubricated radial bearing of (1) with (2)

Pos.26

Water-lubricated axial/radial bearing from (19) in (17)

Pos.27

Waterproof power cable glands

Pos.28

Magnetic field-permeable tight window in (3) and (4) made of welded austenitic sheet steel plate

Pos.29

Water passage openings in (17) and (18)

Pos.30

Ring with bearing braced at (18) to limit play

Pos.31

Magnet wheel blades work in opposite rotation with full torque compensation

Pos.32

(1) and (2) are weightless and balanced in a horizontal position using the housing air volume in the water

Item 33

Flow back pressure on the power plant is compensated by centrifugal pump discharge reaction force (33).

Depiction

• 1 shows the overall structure of the two oppositely rotating turbine elements (1) on the outside and (2) on the inside in half section, whereby in (1) the housing (10) with the propeller (16) firmly connects and guides the hollow shaft (17), on which the pole wheel (19) with the housing (18) itself is freely rotatably mounted centrally, the magnetic field from the poles (20) being coupled to the stator (12) via the magnetic field-permeable cylinder (21) as a window. The design according to the invention is that the propeller (19) of (2) is offset by the water flow in the opposite direction of rotation and at the same speed to the propeller drive (16) of (1), whereby the stator (12) is excited and electricity is generated at balanced moments, which also applies to the common drive of (1) and (2) for the centrifugal pump (23) and (24).
• 2 , point The centrifugal pump with impeller (23) on (1) and the stator (24) on (2) generates a reaction force by expelling water (33), which balances the accumulating force of the water flow and the entire power plant is approximately above the base weight (22). the connection (9) in a pulley design for ascending and descending is kept virtually stationary, whereby (9) can roll in the separate end space of (4) depending on the damming force. Due to the corresponding air volume (32) in the housings and propellers of (1) and (2), the entire power plant is essentially weightless when submerged except for a remaining buoyancy volume for maintenance purposes and floats in a horizontal position according to the position of the overall center of gravity.
• 3 , Point Z shows the encapsulated inductive current/voltage transmission (3) and (4) by means of 3-phase transformers (5) and (6) in the holder (7) to (1) exactly in the axis of rotation of the entire power plant, which rotates with it in order to bring the electricity from the rotating power plant to land during operation. The (7) essentially consists of a "rotating" housing (3) fixed to (7) and an opposite "standing" housing (4), both of which do not touch each other, but both have a magnetic field-permeable window in the housing ( 28), although (4) rotates freely in (7) by means of a water-lubricated retaining ring (15). is stored in cash. After the current/voltage converter (13), the power lines (14) and bushings (27) as well as in holes protected by the blades of (16) and hollow shaft (17) carry the current further into the housing of (3) to the coils R, S, T from the laminated transformer (5). The standing housing (4) with the transformer (6) is kept "standing" by the power plant connection (9) to the base weight (22). The rotating transformer (5) now induces the 3-phase coils in the standing housing (6). U, V, W over the 3 transformer legs and the cylindrical transmission transformer core through the windows (28), so that the current can then be passed on via line (11) to the base weight (22) and further.

Claims (6)

Sea current power plant for energy parks With this type of sea current power plant, new energy parks in the sea can advantageously be equipped with more units, as a much smaller distance between the units is made possible because of the compensation of the dynamic pressure on the power plant the reaction force of the centrifugal pump output (33) the power plant works and generates electricity at the location above the base weight (22) at full operation and at the same speed in opposite directions from the turbine elements (1) and (2), the propeller torque being (19) in (2) corresponds at least to the generator torque. Ocean current power plant for energy parks Claim 1 Characterized in that an integrated centrifugal pump consisting of an impeller (23) driven by the propeller (16) in the turbine element (1) and with a stator (24) driven by the propeller (19) in the turbine element 2 produces an accelerated water output during operation Reaction force compensates for the dynamic pressure force on the entire power plant Ocean current power plant for energy parks according to one of the preceding claims, characterized in that with the integrated generator consisting of the encapsulated stator (12) equipped with a magnetic field-permeable window (21) in the turbine element (1) and driven by the propeller (16) and the magnet wheel formed from the propeller (19) and the permanent magnetic poles (20) in the turbine element (2) generates electricity in opposite rotations at the same speed Sea current power plant for energy parks according to one of the preceding claims, characterized in that the turbine element (1) is firmly screwed together with the housing (10), the hollow shaft (17) and the propeller blades (16) and the turbine element (2) with the magnet wheel (19) and (20) on the hollow shaft (17) is freely rotatable axially and radially in (26) and is driven. Ocean current power plant for energy parks according to one of the preceding claims, characterized in that with the holder (7) a "rotating" half (3) of the inductive voltage/current transmission and a "standing" half (4), which in ( 7) is rotatably mounted in the power plant axis, with both windows (28) in the sealed housings permeable by magnetic fields with the transformers (5) and (6) being able to transmit current and voltage inductively from (3) to (4) during operation according to the invention for forwarding on land, since the pulley connection (9) in the rounded front area is pivotally connected to (4), here it holds the power cable (11), and is itself pivotably but firmly connected to the base weight (22). Sea current power plant for energy parks according to one of the preceding claims, characterized in that the turbine elements (1) and (2) are weightless due to air volume in the housings and the propeller blades submerged in the water and keep the power plant in a horizontal floating position in accordance with the overall center of gravity, whereby a residual buoyancy volume is kept available for the entire power plant to rise and fall during maintenance work.

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