KR101255728B1 - Wave Activated Generator for Ship - Google Patents

Abstract

The present invention relates to a small wave generator for a ship that can be implemented in a hybrid electric cable by converting the motion of the wavefront into a motion of the air mounted on the ship, by producing a power for the ship by rotating the wind turbine by the movement of the air. , The small wave generator for ship according to the present invention is a hollow duct-type air duct is fixed to the vessel, and communicated to the lower portion of the air duct is locked under the water surface and wider than the width (W1) of the air duct (W2) and the ratio A main body comprising a water chamber having a circular cross section, and a power generation duct formed in communication with an upper end of the air duct; A wind turbine installed inside the power generation duct and rotating by the flow of air generated in the air duct, a power generation unit generating power by the wind turbine, and power generated by the power generation unit as a storage battery installed in a ship; A power generation unit having a leader line for supplying; And a mount unit for fixing the main body to the ship.

Description

Wave Activated Generator for Ships

The present invention relates to a wave generator mounted on a ship, and more particularly, mounted on the ship converts the wavefront motion into the movement of air, and by rotating the wind turbine by the movement of the air to produce power for use in the ship It relates to a small wave generator for ships.

Recently, the use of environmentally friendly natural energy is encouraged, and various power generation methods using solar light, wind power, wave power, tidal power, and geothermal energy have been actively developed. However, at present, only solar and wind facilities are in practical use, and the remaining fields are still not widely used due to problems in economics and technical aspects.

Actual results indicate that ocean wave energy is a very stable energy source compared to solar and wind energy.

The wave power generation system using wave energy absorbs the motion of water forming waves directly by a mechanical means to drive a linear generator or a rotary generator, and converts the motion of water into the movement of air primarily to a wind turbine. It can be classified as an indirect way of driving.

The former is to transfer the vertical or horizontal motion of the float floating on the sea level directly to the linear generator or to drive the generator by converting linear motion into rotational motion with a crankshaft, etc. It is known that there is a problem in terms of management because it is difficult to derive the optimum structure because it is constantly changing, and the generation waveform is also in the form of a pulse type.

The second method involves first converting the wavefront's motion into air and then rotating the wind turbine. This method not only absorbs the kinetic energy of the wave smoothly by converting the irregular and shocking motion of the wave into the kinetic energy of the air, but also converts the spatial motion of the wave into a linear motion without any special mechanical mechanism. The advantage is that the air turbine can be driven.

The current mainstream of the wave energy utilization technology is called Oscillating Water Column (OWC). In this method, a circulating air flow generated by the reciprocating movement of the water column (water column) generated by installing a sealed cylinder on the surface of the air It converts into electrical energy using turbines and generators. Representatives of this approach include Linford, which started operations in the UK in 2000, Mighty Whale of the Japan Center for Marine Science and Technology, and the wave power plant at Portgirl Pico Island, which is being developed under the support of the European Union.

To date, wave power plants have been tested and operated as large-scale power plants at several overseas sites. However, due to heavy construction costs and many damages caused by typhoons and tsunamis, they have not yet received great response.

In addition, many small floating wave generators are currently installed and operated with a small port marking and the like, and their effectiveness is also recognized. However, since the installation location is mainly secluded sea surface, it is difficult to repair, and there are many losses due to various natural and artificial accidents.

On the other hand, in recent years, the cost of power using win oil has risen sharply, such as rising oil prices and restrictions on greenhouse gas emissions, and demands from environmental groups concerned about air pollution are increasing. Introduction of eco-power systems used as power is required. So far, the problem of soot gas has not been seriously discussed at sea, unlike onshore. However, in recent years, the increase in the number of ships and the increase in the number of operations have greatly contaminated the air in the offshore area, and thus countermeasures are required.

The present invention has been devised to solve such a demand, and an object of the present invention is to generate electric power using wave power during the operation or operation of a ship, the ship wave generator for ships that can implement a hybrid electric line using a combination of commercial power and internal combustion engine In providing.

Ship wave power generator according to the present invention for achieving the above object, the hollow duct-type air duct is fixed to the vessel, and communicated to the lower portion of the air duct is locked under the water surface than the width (W1) of the air duct A main body comprising a water chamber having a wide width W2 and a non-circular cross section, and a power generation duct formed in communication with an upper end of the air duct; A wind turbine installed inside the power generation duct and rotating by a flow of air generated in the air duct, a generator generating power by the wind turbine, and supplying the power generated by the generator to a storage battery installed in the ship A power generation unit having a leader line; And a mount unit for fixing the main body to the ship.

According to an aspect of the present invention, the main body may further include a funnel duct communicating with an upper end of the power generation duct and having a cone shape extending upward.

In addition, a water lump blocking grating may be installed between the air duct and the order chamber of the main body to prevent the waves in the order chamber from colliding with the power generation unit.

According to another aspect of the present invention, the mount unit is a fixed frame fixed to the ship, a movable frame which is movably installed on the fixed frame and the main body is fixed, and the movable frame is moved relative to the fixed frame It may be configured to include a fixing means for maintaining the state.

The present invention has the following effects.

First, as the air in the air duct moves upward or air is introduced into the air duct by the wavefront change in the order chamber, the wind turbine in the power generation duct rotates to generate power. Therefore, the electric power can be generated using the wave power during navigation or operation of the ship, and the ship can be operated using the generated power, thereby enabling the implementation of a hybrid electric cable.

In addition, since the power generated by the use of wave power can be charged to the storage battery while the ship is in operation or in operation, it can contribute to the cleanliness of the ocean by minimizing marine pollution as well as saving fuel costs.

In addition, since the installation position of the main body with respect to the vessel can be changed, when high-speed navigation is required, the whole or most of the main body can be located on the surface of the water to minimize resistance during operation.

1 is a front view showing the configuration of a marine wave power generator according to an embodiment of the present invention.
FIG. 2 is a side view of the marine wave generator of FIG. 1. FIG.
3 is a plan view of the marine wave generator of FIG.
4 is a cross-sectional view illustrating main parts of the marine wave generator of FIG. 1.
5A to 5C are front and sectional views and bottom views showing one embodiment of a power generation unit of the marine wave generator of FIG. 1.
6 is a front view showing an embodiment of a mount unit of the marine wave generator of FIG.
7 and 8 are functional diagrams illustrating the operation of the marine wave generator of FIG.
9 is a plan view and side view of a ship showing an example in which the wave generator for ship of Figure 1 is installed on the ship.
10 is a view showing a height adjustment state of the marine wave generator of FIG.

Hereinafter, with reference to the accompanying drawings will be described in detail a marine wave generator according to a preferred embodiment of the present invention.

1 to 4, the ship wave generator 100 of the present invention includes a main body 110 mounted on a ship, a power generation unit 120 installed in the main body 110, and the main body 110. It consists of a configuration including a mount unit 130 for removably fixed to the vessel.

The main body 110 has an air duct 111 in the form of a cylindrical hollow tube, a water chamber chamber 112 communicating with a lower portion of the air duct 111 and locked below the water surface and having a non-circular cross section. , And a power generation duct 113 formed coaxially in communication with the upper end of the air duct 111 and a funnel duct 114 coaxially communicating with the top end of the power generation duct 113.

The air duct 111, the order chamber 112, the power generation duct 113, and the funnel duct 114 are not corroded by seawater, but are preferably made of a lightweight metal sheet or a hard synthetic resin material. In addition, the air duct 111, the order chamber 112, the power generation duct 113, and the funnel duct 114 may be connected to each other after being made individually, but all or part of the air duct 111 may be manufactured in one piece.

The order chamber 112 has a width W2 wider than the width W1 of the air duct and a non-circular cross section. In this embodiment, the order chamber 112 is fixed to the mount unit 130. It consists of a plane, the outer surface is formed of an arcuate curved surface convex in the outward direction of the ship. When the order chamber 112 is formed to have a width W2 wider than the width W1 of the air duct, the volume inside the order chamber 112 is increased to increase the amount of water blown into the space inside the order chamber 112. It is possible to obtain the advantage that the power generation efficiency is improved. In addition, when the order chamber 112 is formed in an arcuate or streamlined convex shape in the outward direction of the ship, there is an advantage that can reduce the resistance by the order chamber 112 during navigation.

In addition, the inlet 112a formed to be opened at the lower end of the order chamber 112 is inclined in one direction so as to secure a wide opening area and effectively inject kinetic energy of the most suitable component according to the characteristics of the wave. That is, the water particles of the sea wave are circular motion, and when the kinetic energy of the sea wave is blown into the order chamber 112, when the inlet 112a of the lower end is inclined, the wave as well as the vertical component of the wave is horizontal. Even components can be effectively blown, thereby improving power generation efficiency.

The lower portion of the air duct 111 has the same diameter as the order chamber 112, the upper portion of the air duct 111 is formed in the shape of a cone (cone) is reduced in diameter toward the upper side power generation duct 113 It is connected with the lower end of.

The power generation duct 113 has a diameter smaller than the lower portion of the air duct 111, and the power generation unit installed in the power generation duct 113 by increasing the flow rate of air flowing from the air duct 111 toward the power generation duct 113. It serves to improve the power generation performance of (120).

The funnel duct 114 has a cone shape or a funnel shape that expands as the diameter increases from the lower side to the upper side, and the air discharged from the inside is discharged while being quickly diffused, and the air flows from the outside to the inside. When the air flow rate increases, the power generation performance is further improved.

On the other hand, as shown in Figure 4, between the air duct 111 and the order chamber 112 to block the water lump (suppressing water lump) to suppress the impact of the waves in the order chamber 112 to the power generation unit 120 The grid member 140 is installed. The ruler blocking grid member 140 has a structure in which a plurality of through-holes 141 are arranged in a grid so that air flows freely, and ruler can not be broken while being broken finely.

As shown in FIGS. 5A to 5C, the power generation unit 120 rotates due to the flow of air generated inside the air duct 111, and the wind turbine 121 rotates with the wind turbine 121. And a leader line 126 for supplying power generated by the generator 122 to the storage battery (not shown) installed in the ship.

The wind turbine 121 of the power generation unit 120 may be configured using a bidirectional wells turbine (Wells Turbine) that rotates in one direction by both the air flowing from the lower side to the upper side and the air flowing from the upper side to the lower side.

The generator 122 is connected to the rotary shaft of the wind turbine 121 and the armature 123 rotates together, and the field disposed outside the armature 123 to generate an induced electromotive force with the armature 123 ( And a generator housing 125 accommodating the armature 123 and the field 124 while being watertight.

On the other hand, the mount unit 130 is fixed to the main body 110 to the vessel (see Fig. 8), it is preferable to be configured to function to adjust the installation angle of the main body 110.

In this embodiment, the mount unit 130, as shown in Figure 1 and 6, the fixed frame 132 is fixed to the hull of the ship (S), and to extend in the vertical direction to the fixed frame 132 Two guide rails 133 are formed, the movable frame 131 is installed to be moved up and down along the guide rail 133 and the main body 110 is fixed, and the movable frame 131 is a fixed frame ( And fixing means for maintaining the positional movement with respect to 132. The movable frame 131 may be provided with a plurality of rollers 131a while rolling along the guide rail 133.

In this embodiment, the fixing means includes a fastening hole 134 installed in the fixing frame 132 and a plurality of positioning holes 135a and 135b spaced apart from each other in the vertical direction by the movable frame 131. And a fastening bolt 136 fastened to the fastening hole 134 through any one of the positioning holes 135 to fix the movable frame 131 to the fixed frame 132.

Therefore, in the state in which the worker moves the movable frame 131 upward along the guide rail 133, the lower fastening bolt 135b is aligned with the fastening hole 134 of the fixing frame 132 in the fastening bolt. When the 136 is fastened, the movable frame 131 is fixed while being moved upward with respect to the fixed frame 132, and the position of the main body 110 is adjusted upward (see FIG. 9). On the contrary, when the main body 110 is to be moved downward, the fastening bolt 136 is released to free the movable frame 131, and then the movable frame 131 is guided along the guide rail 133. When the fastening bolt 136 is fastened by moving the upper positioning hole 135a to match the fastening hole 134, the movable frame 131 is fixed to the fixed frame 132, and the main body 110 is lowered. It will keep the position moved to.

The main body 110 is fixed to the front surface of the movable frame 131 by a plurality of fixing bands 137 and fastening bolts 138.

Marine wave generator 100 of the present invention configured as described above operates as follows.

As shown in FIG. 7, the wave generator 100 is installed by locking the order chamber 112 so that the sea level reaches about the middle portion of the order chamber 112. In this state, when the wave proceeds from the left to the right in the drawing and the wavefront rises at a certain time t1, the water column rises in the order chamber 112 to push up the air. Accordingly, the air in the air duct 111 is moved upward to pass through the power generation duct 113 and the funnel duct 114. At this time, the flow rate of air is increased while passing through the power generation duct 113, and the air passing through the power generation duct 113 is discharged while being rapidly diffused to the outside while passing through the funnel duct 114.

In addition, the wind turbine 121 rotates in one direction by the flow of air in the process of passing air through the power generation duct 113 as described above. When the wind turbine 121 rotates in one direction, induction electromotive force is generated in the power generation unit 122, and the generated power is charged in a storage battery (not shown) of the ship through the leader line 126.

When the wave continues and reaches the point in time t2, the wavefront is lowered as shown in FIG. 8, and the order in the order chamber 112 is also lowered. Accordingly, the air pressure inside the air duct 111 is reduced, and outside air flows in through the funnel duct 114 to move downward.

The outside air introduced through the funnel duct 114 continues to rotate the wind turbine 121 in one direction while passing through the power generation duct 113, and as described above, the power generation unit may be rotated by the wind turbine 121. At 122, an induced electromotive force is generated and charged in a storage battery (not shown).

As the wavefront is raised and lowered in this way, the rise and fall of the order occurs within the order chamber 112, and the flow of air is generated by the rise and fall of the order, thereby rotating the wind turbine 121. 122 is activated. Therefore, it is possible to operate the ship by using the electric power generated by the wave force, it is possible to implement a hybrid type electric cable.

Although the phenomenon in which the wave suddenly rises in the main body 110 while the order is raised and lowered in the order chamber 112 of the wave generator 100, the hand-held blocking grid member 140 installed inside the main body 110 is formed. By the wave is broken finely does not occur the phenomenon that the wind turbine 121 blade of the power generating unit 120 is damaged.

On the other hand, since the ship wave generator 100 of the present invention is used to be fixed to the hull is somewhat unavoidable, in the case of a small ship, the width of the swing is large, if the installation position is not appropriate, the movement of the wavefront and the wave generator (100) ), There is a possibility that the movement of the ()) to offset the movement of the water column in the body (110). On the contrary, the vibration of the water column is maximized by synchronously reversing the phases depending on the installation position of the wave generator 100, and the power generation efficiency is increased. Therefore, it is required to find a suitable position where the power generation efficiency can be maximized and to mount the wave generator 100.

For example, the wave generator 100 may be installed at both sides of the stern or bow portion of the ship, or the wave generator 100 may be installed at both sides of the center portion of the ship S as shown in FIG. 9.

In addition, the wave generator 100 of the present invention can be generated during navigation as well as when the vessel is anchored. When the vessel is to be anchored or to perform power generation during navigation, as shown in FIG. 10, when the order chamber 112 of the main body 110 is locked below the sea level, the order chamber 112 is changed by the wavefront as described above. Several weeks of rise and fall occur within the power plant.

And, when the high-speed operation of the vessel is required as shown in the phantom line in Figure 10 by raising the movable frame 131 of the mount unit 130 by adjusting the height of the main body 110 to increase the overall body 110 When is located above the sea level, the underwater resistance by the main body 110 hardly occurs during the operation, it is possible to operate at high speed.

In the above-described embodiment, the main body 110 is configured so that the installation height can be changed by the vertical movement of the movable frame 131 with respect to the fixed frame 132, otherwise, the mounting unit 130 in a diagonal direction, horizontal It may be configured to move in the direction or to rotate at any angle to properly change the position or installation angle of the main body 110.

For example, in the above-described embodiment, the main body 110 is completely fixed to the movable frame 131 and configured to be movable only in the up and down direction. Alternatively, the movable frame 131 is fixed to the fixed frame 132. Rotational connection with respect to the rotational frame, or rotatably coupled to the rotating frame to the front surface of the movable frame 131, the body 110 is fixed to the rotating frame to adjust the height and the rotating frame by the movable frame 131 It may be possible to adjust the installation angle by all.

The embodiment of the marine wave generator according to the present invention described above is presented for the purpose of illustration only to help the understanding of the present invention, the present invention is not limited thereto, and those skilled in the art to which the present invention pertains are attached Various changes and implementations may be made within the scope of the technical idea described in the claims.

100: wave generator 110: main body
111: air duct 112: order chamber
112a: Inlet 113: Power generation duct
114: funnel duct 120: power generation unit
121: wind turbine 122: power generation unit
123: armature 124: field
125: generator housing 126: leader line
130: mount unit 131: movable frame
132: fixed frame 133: guide rail
140: hand block grid member

Claims (9)

The air duct 111 of the hollow tube shape fixed to the vessel, and the water chamber 112 is communicated to the lower portion of the air duct and locked below the surface of the water duct having a width (W2) than the width (W1) of the air duct A main body 110 including a power generation duct 113 formed in communication with an upper end of the air duct;
The wind turbine 121 installed inside the power generation duct and rotating by the flow of air generated in the air duct, the power generation unit 122 generating power by the wind turbine, and the power generation unit 122 A power generation unit 120 having a leader line for supplying the generated power to a storage battery installed in the ship;
Ship power generator comprising a mount unit 130 for fixing the main body 110 to the ship. The ship body of claim 1, wherein the main body 110 further includes a funnel duct 114 communicating with an upper end of the power generation duct and having a cone shape extending upward. Wave generator. According to claim 1 or 2, It is installed between the air duct 111 and the order chamber 112 of the main body 110, the plurality of through holes 141 are arranged in a grid form to allow the flow of air The ship wave generator, characterized in that it further comprises a water lump blocking grid member 140 to prevent the waves from colliding in the power generation unit 120 in the body (110). According to claim 1, The wind turbine 121 of the power generation unit 120 is characterized in that the bidirectional wells turbine (Wells Turbine) is rotated by both the air flowing from the lower side to the upper side and the air flowing from the upper side to the lower side. Ship wave generator. The ship wave generator according to claim 1, wherein the inlet (112a) of the lower end of the order chamber (112) is inclined in one direction. The ship wave generator according to claim 5, wherein the order chamber (112) has an arcuate or streamlined cross section that is convex in the outward direction of the ship. According to claim 1, The mount unit 130 is fixed frame 132 is fixed to the ship, the movable frame 131 is installed to be movable to the fixed frame 132 and the main body 110 is fixed and , The ship wave generator, characterized in that it comprises a fixing means for maintaining a state moved relative to the fixed frame (132). The method of claim 7, wherein the movable frame 131 is connected to the guide rail 133 formed to extend in the vertical direction to the fixed frame 132, characterized in that it is installed to move up and down along the guide rail 133 Marine wave generators. The method of claim 7, wherein the fixing means is a fastening hole 134 is installed in the fixing frame 132, and a plurality of positioning holes (135a) which are spaced apart a predetermined distance in the vertical direction in the movable frame 131, 135b) and a fastening bolt 136 fastened to the fastening hole 134 through any one of the positioning holes 135 to fix the movable frame 131 to the fixed frame 132. A ship wave generator characterized in that.

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