DE102022003238A1 - Arrangement and method for producing a wind rotor with five vertical, movable rotor blades as propulsion power for cargo ships - Google Patents

Abstract

(57) Main claim: 1. Arrangement and method for producing a wind rotor with five vertical movable rotor blades for generating electrical energy as a driving force for cargo ships. The vertical arrangement and control of the rotor blades with power transmission to the jacket tube. The movement position of the rotor blades by electric motor control during a 360° rotation on the power side at right angles up to 45° to the wind direction, on the idle side parallel to the wind direction.

Description

• 1. Wind rotor with five vertical, movable rotor blades as propulsion force for cargo ships.
• 2.1 The usual wind rotors are built on the principle of windmills.
• 2.2 A wind rotor with vertical installation is the Savonius rotor with semi-circular curved blades.
• 2.3 Another system is the Darrieus Rotor. The rotor blades are attached to the upper and lower end of the vertical axis and protrude outwards in segments.
• 2.4 The construction was already built in the twentieth century and used in the designation: Flettner rotor for ship propulsion.
• 3.1 The disadvantage of this conventional design is: When designing large wings, the support mast must be designed correspondingly high. The gearbox and the generator must be arranged at hub height, which means that the manufacturing and operating costs are understandably high.
• 3.2 The disadvantage of these two systems mentioned under points 2.2 and 2.3 is that the idle side reduces part of the generated energy again.
• 3.3 The energy yield of the Flettner rotors is too low for economic use.
• 4. The task was to plan a system for the ship's propulsion, which is easy to manufacture in construction and can still be used at higher wind speeds.

Arrangement and method for producing a wind rotor (1) with five vertical, moveable rotor blades as propulsion force for cargo ships. The vertical arrangement and control of the rotor blades with power transmission to the jacket tube.

Wind rotor (1) with energy generating systems arranged congruently.

Clamped with a vertical support mast (4) to absorb the vertical loads on the ship's keel (2) and ship's deck (2a),

Tensioning ropes (3) secure the support mast (4). The guying is guided from the top of the support mast (4a) to the ship's deck (2a).

The casing pipe (5) is connected to the upper crossbar (6a) and the lower crossbar (6b).

The support mast (4) with a height above deck of max. 55 m consists of a 5 mm thick steel tube, da = 2.0 m. Every 8 m a horizontal intermediate floor (4b) with a ladder is installed. The supporting mast (4) is additionally reinforced with the intermediate floor (4b).

At the top of the support mast (4a), the foremast (1a) is fitted with three spreaders (4c), the main and mizzen masts (1b + 1c) are fitted with four spreaders (4c).

The jacket tube (5) with a height above deck of max. 35 m consists of an outer and inner 4 mm thick aluminum tube, d _a = 3.0 m, with a double intermediate layer of 2 mm thick aluminum trapezoidal profile sheet, Aluform 40 /167 mm, which are non-positively connected by spot welding.

The jacket tube (5) is supported and guided by ball (7a) and roller bearings (7b).

The rotor blades (8) are tied into blade pockets (8a) at the upper and lower ends of the vertical axis.

The blade pockets (8a) absorb the forces of the rotor blades and transfer them to the centrally arranged axle bolts (9) between the upper (6a) and lower traverse (6b) in tapered roller bearings (7b).

The rotor blades (8) consist of a sandwich construction. One layer of sheet aluminum on the outside. The core consists of extruded polystyrene rigid foam, which is cut into shape and bonded to the 5 mm thick aluminum sheet.

The deflection of the rotor blades (8) is limited with the spreading of the double-layered rotor blades (8) with a pressure rod (8b).

The rotor blades (8) are controlled and aligned by two electric servomotors (10a) each, which are arranged in the upper (6a) and lower (6b) traverse.

The power of the electric servomotors (10a) is transmitted to worm gears (10b) which are connected to the axle bolts (9).

By turning the electric servomotors (10a) clockwise and counterclockwise, the rotor blades (8) can be adjusted individually under computer control during one revolution of the wind rotor (1) according to the wind conditions.

The rotor blades (8) are controlled and aligned during the operating phase at a right angle of up to 45° to the side on which the wind is acting, from 0° to 179°. On the idle side from 180° to 360°, the rotor blades (6) are aligned parallel to the wind direction.

The force of the wind and the pressure on the rotor blades (8) cause the rotation of the unit - jacket tube (5) and traverses (6a + 6b).

The energy from the rotary movement can be used to propel cargo ships.

In the past, square sails were used to propel large cargo ships, with the disadvantage that the ships could not follow a direct course but had to tack against the wind.

Several wind rotors (1) standing one behind the other can also be arranged without a significant loss of energy occurring.

In order to ensure the view from the bridge in the direction of travel, this is arranged in front of the jib rotor (1a).

Depending on the order of the wind rotors, these are referred to as in sailing, front jib, hereinafter main, cross or mizzen rotor.

The generator (11) is housed in the deckhouse (12) and generates electricity to drive the traction motor (16).

When there is little or no wind, a diesel engine (17) is used to ensure maneuverability.

• Bei einer Rotormasthöhe (1) von 55 m und Rotorblatthöhe von 35 m bei einer Blattbreite von 6 m steht eine Staudruckfläche von 210 m² zur Verfügung.
• Der mittlere Staudruck kann mit 50,-kp/m², bei einer Windgeschwindigkeit von 35,2 m/s angenommen werden.

$${\text{W}}_{45°}>\text{cf*q*A}\text{, W}=\mathrm{0,8}*210*\mathrm{50,}-;\text{ W}=\mathrm{8.400,}-\text{kp}$$

$${\text{W}}_{90°}>\text{cf*q*A}\text{, W}=\mathrm{1,3}*210*\mathrm{50,}-;\text{ W}=\mathrm{13.650,}-\text{kp}>30.450\text{ kp}$$

The possible performance data:

• With a rotor mast height (1) of 55 m and a rotor blade height of 35 m with a blade width of 6 m, a dynamic pressure area of 210 m ² is available.
• The average dynamic pressure can be assumed to be 50 kp/m ² at a wind speed of 35.2 m/s.

$${\text{W}}_{45°}>\text{cf*q*A}\text{, W}=0.8*210*\mathrm{50,}-;\text{W}=\mathrm{8,400,}-\text{kp}$$

$${\text{W}}_{90°}>\text{cf*q*A}\text{, W}=1.3*210*\mathrm{50,}-;\text{W}=\mathrm{13,650,}-\text{kp}>\mathrm{30,450}\text{kp}$$

$$\text{Umfang}/\text{Rotor}>{\text{d}}_{\text{m}}=12\text{ m}>\mathrm{0,5}*6*100.000\text{ kp*3}\text{,14 m}/{\text{s}}^2=\mathrm{2,9}*106-\text{ kpm}\text{,}$$

A rotor (1) of the above size will generate kinetic energy: $$\text{Dimensions}/\text{rotor}>100\text{to}\text{, Speed}/\text{revolution}/\text{rotor}>10\text{s}\text{,}$$

$$\text{Scope}/\text{rotor}>{\text{i.e}}_{\text{m}}=12\text{m}>0.5*6*\mathrm{100,000}\text{kg*3}\text{.14 m}/{\text{<figure-callout id="2" label="s" filenames="DE102022003238A1\_0006.png,DE102022003238A1\_0008.png" state="{{state}}">s</figure-callout>}}^2=2.9*106-\text{km}\text{,}$$

Three wind rotors (1) would be sufficient to propel a seagoing vessel of L/W/D > 130/22/12 m at a speed of 10 ktn.

The winding of the generator (11) receives an excitation current (13) from a Thyricon excitation system (14), which can be controlled depending on the load.

The power output of the wind rotor (1) is regulated in a converter (15) in accordance with the standard.

The power output of the generators (11) is charged in the power storage device (16), from which the electric traction motor (16a) can be supplied.

From a wind speed of 50 m/s, all rotor blades (8) are turned into the wind.

• Schnitt Schiffsrumpf - Windrotor
• Schnitt A : B (Anlauf- u. Betriebsphase)
• Schnitt C : D (Schiffsriss)
• Deckhaus E : F

The invention is represented by:

• Cut hull - wind rotor
• Section A : B (start-up and operating phase)
• Section C : D (ship crack)
• Deckhouse E : F

• 5.1 Die Herstellung eines Windrotors (1) mit fünf senkrechten, beweglichen Rotorblättern und senkrechter Anordnung und Steuerung der Rotorblätter mit Kraftübertragung auf das Mantelrohr ist für den Schiffsantrieb effizient und und materialsparend.
• 5.2 Die Ausnutzung des Schiffsantriebs durch die Kräfte des Windes ist ein uraltes Wissen, dieses wurde aber durch die Erfindungen der Dampfmaschine und den Kraftstoffmotor verdrängt.
• 5.3 Die Schadstoff-Minimierung aus Dampfmaschine und Kraftstoffmotor ist ein Teil der Zukunftsvorsorge und sollte deshalb in allen Bereichen unseres Lebens Anwendung finden.
• 5.4 Für den Antrieb der größeren Seeschiffe wurden in der Vergangenheit Rahsegel eingesetzt, mit dem Nachteil, dass die Schiffe nicht dem direkten Kurs verfolgen konnten, sondern gegen den Wind ankreuzen mussten.
• 5.5 Die Windrotoren zeichnen sich dadurch aus, dass die Ausnutzung und Handhabung der Windkräfte optimal möglich ist.
• 5.6 Bei dem großen Durchmesser des Läufers und des Stators ist kein Getriebe erforderlich.
• 5.7 Da der Generatorläufer mit der gleichen Drehzahl wie der Rotor läuft, ist die mechanische Belastung der Bauteile geringer.
• 5.8 Die Konstruktion ist im Materialeinsatz sparsam und dennoch statisch besonders tragfähig und dies bei guten CW- Werten.

5.0 Advantages resulting from the construction:

• 5.1 The production of a wind rotor (1) with five vertical, movable rotor blades and a vertical arrangement and control of the rotor blades with power transmission to the jacket tube is efficient and material-saving for ship propulsion.
• 5.2 The use of wind power to propel ships is ancient knowledge, but it was superseded by the invention of the steam engine and the fuel engine.
• 5.3 The minimization of pollutants from the steam engine and fuel engine is part of the provision for the future and should therefore be applied in all areas of our lives.
• 5.4 In the past, square sails were used to propel the larger seagoing vessels, with the disadvantage that the vessels could not follow a direct course but had to tack against the wind.
• 5.5 The wind rotors are characterized by the fact that the use and handling of the wind forces is optimally possible.
• 5.6 With the large diameter of the rotor and stator, no gear is required.
• 5.7 Since the generator rotor runs at the same speed as the rotor, the mechanical stress on the components is lower.
• 5.8 The construction is economical in the use of materials and yet statically particularly stable and this with good CW values.

1

wind rotor

1a

jib rotor

1b

main rotor

1c

mizzen rotor

2

ship keel

2a

ship deck

3

guy rope

4

support mast

4a

ladder walk

4b

intermediate floor

4c

spreaders

5

casing pipe

6a

upper traverse

6b

lower traverse

7a

ball-bearing

7b

Roller bearing

7c

tapered roller bearing

8th

rotor blade

8a

pipe bag

6b

pressure rod

9

axle bolt

10a

electric actuator

10b

worm gear

11

generator

12

deckhouse

13

excitation current

14

Thyricon excitation system

15

converter

16

power storage

16a

electric traction motor

17

diesel traction engine

Claims (8)

The arrangement and the method for the production of wind rotors (1) with five vertical, movable rotor blades for the propulsion of cargo ships is characterized in that the power of the wind is optimally utilized and the handling by the electric motor control (10a) is easy to operate is. The wind rotors (1) are characterized by the fact that they can be steered into any position by an electric motor and can thus exploit the wind during a 360° rotation on the power side at right angles up to 45° to the wind direction and on the idle side parallel to the wind direction. The vertical arrangement of the rotor blades is characterized by the fact that the smaller the diameter of the wind generator (1), the smaller the rotational speed, which means that the noise emissions are reduced. Each individual rotor blade (8) is characterized in that it is guided outwards in two layers and is connected by a pressure rod (8b). In cross-section, the rotor blades have a mirror-inverted airfoil profile. A construction is chosen that is statically stable and still has good CW values. The control and alignment of the rotor blades (8) is characterized by the fact that two electric servomotors (10a) are arranged in the upper (6a) and lower traverse (6b). The electric servomotors (10a) and the worm gears (10b) are characterized in that the force of the wind is transmitted individually to the wind generator (1). With the arrangement of wind rotors (1) in cargo shipping, an economical, environmentally friendly drive is chosen.

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