WO2021080318A1

WO2021080318A1 - Hybrid ship propulsion system having waterjet propulsion mode and electric propulsion mode by using turbine power generator

Info

Publication number: WO2021080318A1
Application number: PCT/KR2020/014410
Authority: WO
Inventors: 정양호
Original assignee: 유엔그룹 유에스에이, 아이엔씨.; 정양호
Priority date: 2019-10-25
Filing date: 2020-10-21
Publication date: 2021-04-29
Also published as: KR102099724B1

Abstract

The present invention relates to a hybrid ship propulsion system having a waterjet propulsion mode and an electric propulsion mode by using a hybrid multistage power generator. The hybrid ship propulsion system comprises: a pump for supplying water to a rotary turbine portion; a turbine power generation means driven by the rotary turbine portion; a waterjet pipe for generating thrust by discharging to the rear portion of a ship the water that is discharged from the turbine power generation means after power is generated; and a propulsion motor operated by the power generated by the turbine power generation means. According to the present invention, thrust for the ship can be obtained by providing the turbine power generation means in multi-stages and continuously moving a fluid under pressure, and thus, the thrust can be obtained by supplying only the fluid under pressure and electricity can be continuously generated and produced for charging.

Description

Hybrid ship propulsion system with water jet propulsion method and electric propulsion method using turbine generator

The present invention relates to a hybrid ship propulsion system having a water jet propulsion method and an electric propulsion method, and more particularly, by continuously generating and producing electricity only by supplying fluid using seawater or parallel water stored in a ship, the propulsion energy of the ship The present invention relates to a hybrid ship propulsion system having a water jet propulsion method and an electric propulsion method using a multi-stage turbine power generation device that can be used as a water jet propulsion energy by using the pressure of a fluid discharged during electricity production.

In general, the first thing that comes to mind when it comes to ship propulsion is a screw propeller. Screw propellers are usually propellers with 3 to 7 blades, and the spiral surface of the propeller blades push water and the ship advances by receiving the thrust generated by the recoil. Pitch Propeller), Variable Pitch Propeller (CPP: Controllable Pitch Propeller), and a compound propeller (CRP), which is a compound propeller, such as a propeller such as a tandem propeller (Tendem propeller).

The screw propeller, which is a conventional propulsion device for a ship as described above, is being developed in accordance with the trend of high-speed and large-sized ships, but there is a problem of vibration and noise due to cavitation generated when the ship is high-speed.

Here, cavitation is a phenomenon that occurs when a propeller with a high load is configured with a rotational speed that exceeds a certain critical rotational speed, and more generally, bubbles filled with water vapor or air are visualized by lowering the pressure at a constant temperature. It refers to a growing phenomenon.

The propeller, which is a conventional propulsion device for ships, easily generates cavitation when the load is high, which reduces propulsion efficiency, causes vibration and noise of the ship, and reduces a major obstacle to the ship's operation due to damage caused by erosion and bending of the propeller blades. In addition, for the maintenance of the propulsion device, even in an emergency, maintenance must be performed while the ship is stopped, so there is a problem that the maintenance work efficiency is deteriorated.

In addition, in the case of propeller propeller, about 350 knots is considered as the limit of the ship speed, and if the ship speed is more than 350 knots, it rarely operates except in an emergency due to the increase in vibration and noise.

Therefore, in the case of a ship that requires high speed and maneuverability in emergency situations such as high-speed ships, fire ships, rescue ships, guard ships, patrol ships, etc., there is a problem in that the ship's function cannot be fulfilled due to cavitation.

In addition, the existing propeller ship has a problem that it is difficult to make a sudden turn and stop suddenly when an object that can collide in the direction of the path approaches, and when a large ship is anchored at a port, it is very large compared to a ship with a small turning radius, so the turning radius is relatively There is a problem in that it has to be anchored with the help of a small ship (guide ship). Another problem is that fossil fuel consumption is excessive in order to operate the propeller.

In order to solve these conventional problems, Korean Utility Model Registration No. 41873 "Ship propulsion device using seawater" has been proposed, but it is possible for very small ships, but when it is intended to be used in large ships, the propulsion power is weak and the amount of electricity produced is small. There is also a disadvantage that the device must be enlarged in order to form high propulsion and electricity production.

Accordingly, the present invention was conceived to solve all the problems of the prior art as described above,

An object of the present invention is to use a hybrid multi-stage power generation device that provides a turbine power generation means in multiple stages in the direction of fluid movement to obtain the propulsion of a ship while continuously moving a fluid with pressure, and to continuously generate electricity to produce. It is to provide ship propulsion device.

In addition, another object of the present invention is to provide a ship propulsion device using a hybrid multi-stage power generation device capable of operating a ship propulsion motor to which a propeller is connected using charged electricity.

A ship propulsion system having a water jet propulsion method and an electric propulsion method using a hybrid multi-stage power generation device according to the present invention for achieving the above object has a flange portion at the end of the body installed inside the pipe for transporting gas or fluid. A housing provided with an installation space portion bent and penetrated by a central portion, and a plurality of inclined passages installed inside the housing and transferring gas or fluid in a tangential direction of an inscribed circle by dividing the supplied gas or fluid into a certain amount And a fixed frame body having an installation space in which the fixing member and the fixing member are fixed and installed, and a generator inserted into the installation space of the fixed frame body, and the gas or fluid passing through the fixing member collides and rotates. And a turbine generating means comprising a rotating turbine unit having a shaft hole to which a rotating shaft for converting the rotating force into electric energy is connected; A water supply pipe connected to one side of the housing and guided to an inclined passage of a fixed member supplied; A water discharge water jet pipe connected to the other circumference of the turbine power generation means disposed on the other side of the turbine, and the rear side protrudes to the outside of the ship to discharge water into the sea or river to obtain a propulsion force; A charging means connected in parallel with the plurality of generators to charge the generated electricity; An operation control unit connected to the pump and the charging unit to control operation; a pump connected to the operation control unit to supply fluid to the turbine power generation unit; A water tank to which the pump is connected to supply a fluid to a turbine power generation means; Recirculation means for recirculating the fluid discharged through the discharge water jet pipe to the water tank without discharging it to the outside; It is achieved by a ship propulsion system having a water jet propulsion method and an electric propulsion method using a hybrid turbine generator, characterized in that it comprises a ship propulsion motor equipped with a propeller operated by electricity of the charging device.

The water supply pipe is a cylindrical tube provided on one side, and a flange joint is connected around one side of the turbine power generation means so as to extend to the other side of the cylindrical tube, and a conical expansion tube part so as to supply gas and fluid only to the inclined passages. It is achieved by a ship propulsion system having a water jet propulsion method and an electric propulsion method using a hybrid multi-stage turbine generator, characterized in that a conical flow path is formed inside.

The rotary turbine unit is formed at equal intervals on the outer circumference of the inner cylindrical tube, a vertical disk having a shaft hole through which the rotational shaft of the generator is installed, an inner cylindrical tube protruding from the other side of the circumference of the vertical disk, and inclined in the one direction. It includes a plurality of turbine blades rotated by the liquid supplied from the flow path, and an external cylindrical tube wrapped around and fixed to the outer circumference of the turbine blades, wherein one end of the turbine blades forms a swash plate formed by bending in one direction, and the swash plate and It is achieved by a ship propulsion system having a water jet propulsion method and an electric propulsion method using a hybrid multi-stage turbine generator, characterized in that formed by forming discharge holes between the swash plates.

The recirculation means includes a locking valve for temporarily locking the fluid discharged through the discharge water jet pipe without discharging it to the outside; A circulation valve for circulating the fluid filled in the discharge water jet pipe by the lock valve to the water tank; It is achieved by a ship propulsion system having a water jet propulsion method and an electric propulsion method using a hybrid multi-stage turbine generator, characterized in that it comprises a return pipe connected to the discharge water jet pipe.

In the present invention constructed as described above, the turbine power generation means is provided in multiple stages in the direction of fluid movement to obtain the propulsive force of the ship while continuously moving the fluid with pressure, so that the propulsive force of the ship can be obtained only by supplying the fluid with pressure. There is an effect of providing a ship propulsion device capable of continuously generating and charging electricity.

In addition, the present invention also has the effect of reducing the operating cost of the ship as the propulsion force of the ship can be obtained only by supplying the fluid having pressure.

In addition, the present invention can be used in conjunction with water jet propulsion by operating a ship propulsion motor using charged electricity when a high speed is required, so there is an effect of improving the propulsion speed of the ship.

1 is a partial cut-away plan view of a ship propulsion device according to the present invention.

Figure 2 is an exploded perspective view showing the structure of the turbine generator according to the present invention.

Figure 3 is a front cross-sectional view showing the structure of the turbine generator according to the present invention.

Figure 4a is a perspective view showing the structure of a fixing member that is a technical part of the present invention.

Figure 4b is a cross-sectional view showing the structure of a fixing member that is a technical part of the present invention.

Figure 5a is a perspective view showing the structure of the rotary turbine part that is a technical element of the present invention.

Figure 5b is a cross-sectional view showing the structure of the rotary turbine part that is a technical part of the present invention.

6 is a longitudinal sectional view showing the rotation direction of the multistage generator according to the supply of fluid.

Figure 7 is an exemplary view showing an example of electricity production and water jet propulsion method using the present invention.

Figure 8 is an exemplary view showing an example of the electric propulsion method using the present invention.

Hereinafter, a preferred embodiment of the present invention will be described in more detail with reference to the accompanying drawings. However, it should be understood that the present invention may be implemented in a number of different forms, and is not limited to the described embodiments.

The present invention is divided into a water jet propulsion method that produces electricity and implements a water jet function, and an electric propulsion method that uses electricity produced by a turbine power generation means, and is configured largely.

1 is a partial cut-away plan view of a ship propulsion device according to the present invention, and according to the present invention, a flange portion is bent at the end of a body installed inside a pipe for transporting gas or fluid, and a central portion is penetrated. A housing having a space, and a plurality of inclined passages for transporting gas or fluid in a tangential direction of an inscribed circle by dividing the supplied gas or fluid into a predetermined amount, installed inside the housing, and a fixing member, the A fixed frame body having an installation space in which a fixed member is fixed and a generator is installed, a generator inserted and installed in the installation space of the fixed frame body, and a gas or fluid passing through the fixed member rotates by colliding with the rotational force to electric energy. Turbine power generation means comprising a rotary turbine unit having a shaft hole to which a rotary shaft converting into a shaft is connected, and a water supply pipe (L1) that is connected to one side of the housing and guides to the inclined flow path of the supplied fixing member and disposed on the other side. One side is connected around the other side of the turbine power generation means and the rear is connected to the outside of the ship to discharge water into the sea or river to obtain propulsion, and a water discharge water jet pipe, which is connected in parallel with the plurality of generators. A charging means for charging the generated electricity; An operation control unit connected to the pump and the charging unit to control operation, and a pump connected to the operation control unit to supply fluid to the turbine power generation unit; The pump is connected to a water tank for supplying a fluid to the turbine power generation means, a recirculation means for recirculating the fluid discharged through the discharge water jet pipe to the water tank without discharging to the outside, and electricity from the charging device. It is a structure consisting of a ship propulsion motor equipped with a propeller to be operated.

Figure 2 is an exploded perspective view showing the structure of the turbine power generating device according to the present invention, Figure 3 is a front cross-sectional view showing the structure of the turbine power generating device according to the present invention.

As shown in the drawing, the ship propulsion device (hereinafter referred to as "ship propulsion device") using the hybrid multi-stage power generation device according to the present invention is a continuous water or fluid (collective term such as seawater or parallel water) with pressure. While moving, it is possible to obtain the propulsion power of the ship and to produce electricity. A number of turbine power generation means (1), water tanks (L), water supply pipes (L1), water discharge water jet pipes (4), charging means ( 5), and an operation control unit 6.

The plurality of turbine power generation means (1) is provided in the propulsion portion of the ship, which is the lower rear (aft) of the ship, and the housing 11 and the housing 11 installed inside the pipe for transporting gas or fluid. A liquid supply pipe (2) that guides to the inclined passageway (132) of the fixing member (13), which is connected and installed on one side, and the fixing member (13) and the fixing member (13) fixedly installed on the inside of the housing (11) The rotating turbine part 14 is installed inside and rotates by the conveying force of the fluid, the generator 12 generating electricity by the rotational force, and the generator 12 is fixedly installed, and comprises a fixed frame body (16). It is a structure in which rotating turbine means are installed in multiple stages.

The housing 11 has a flange portion provided with a fixing hole coupled with an adjacent flange portion 112 at the end of the body 111 installed on the inside of the pipe for transporting gas or fluid, and the central portion is formed to be bent from both sides. It is a structure having an installation space part 113.

The housing 11 is used as a means for connecting and installing the rotating turbine part 14, and also has an effect of fixing the fixing member 13. Meanwhile, the liquid supply pipe 2 which is connected to one side of the housing 11 and guides to the inclined flow path 132 of the fixed member 13 supplied forms a flange part integrally with the flow path 21 of the fluid. The shape of the supply pipe 2 has a shape like a funnel, and is a structure for guiding and supplying fluid to the inclined flow path 132 of the fixing member 13.

In more detail, the liquid supply pipe 2 is a flow path 21 formed in a cylindrical tube shape provided on one side, and a flange joint is formed around one side of the turbine power generation means so as to extend to the other side of the flow path 21. The conical expansion pipe 22 is connected to the inclined passages 132 to supply gas and fluid, and a conical flow passage 22 is formed inside the conical expansion pipe 22.

The fixing member 13 is installed inside the housing 11 and divides the supplied gas or fluid into a predetermined amount and transfers gas or fluid in a tangential direction of an inscribed circle, and a plurality of inclined blades 131 and inclined. It is a structure formed by forming an inclined passageway 132 formed by being spaced apart at a predetermined interval between the wings 131.

The rotary turbine unit 14 is divided into a space portion by the turbine blades 143 colliding with the gas or fluid supplied from the inclined flow path 132 are divided at regular intervals, but at one end of the turbine blades 143, the supplied gas or The swash plate (143a) that prevents the fluid from abruptly is bent, and the outer cylindrical tube 144 with the discharge hole 145 formed between the swash plate (143a) and the adjacent swash plate (143a) converts rotational energy into electrical energy. It is a structure consisting of a shaft hole to which the rotating shaft 121 of the generator 12 to convert is connected.

More specifically, the rotation turbine unit 14 has a pressure in the one-way inclined flow paths 132 and has a center fixed to the rotation shaft 121 of the generator 12 so that it can be smoothly rotated by the supplied liquid. The vertical disk 141 is formed, the inner cylindrical pipe 142 protruding from the other side of the circumference of the vertical disk 141, and the one-way inclined passageway formed at equal intervals around the outer circumference of the inner cylindrical pipe 142 It may be configured to include a plurality of turbine blades 143 rotated by the liquid supplied from 132, and an outer cylindrical tube 144 wrapped around the outer periphery of the turbine blades 143 and fixed.

The fixing frame body 16 having the installation space 161 in which the fixing member 13 is fixed and the generator 12 is installed is formed in a ring shape and has a structure having a cross section of “C”, and the fixing frame body The generator 12 inserted and installed in the installation space 161 of (16) has a structure in which a rotating shaft 121 is connected to the rotating turbine part 14 and installed. This is the order in which the fixing member 13 is installed inside the housing 11 and the fixing frame body 16 is installed inside the fixing member 13.

In addition, the water tank (L) is provided in the lower portion of the ship, as shown in Figure 1, seawater or fresh water is supplied through a water supply pipe (L1) equipped with a pump (M), the water tank (L) Is disposed in front of the water supply pipe L1 to be described later, which is the lower part of the ship, and the water supply pipe L1 equipped with the pump M preferably has a water supply end submerged in seawater or river water.

In addition, the water supply pipe (L1), as shown in Figures 1 to 3, one side of the turbine power generation means (1) is connected to the pipe provided in the water tank (L) and the other side is disposed on the first side. It is connected to one side by a flange joint, and water with pressure is supplied through the operation of the pump (M).

In addition, the water supply pipe (L1) is provided to extend to the other side of the flow path 21 provided on one side and the other side of the flow path 21 so as to supply intensively pressure water to the one-way inclined flow paths 132. A conical flow path 23 extending from one side to the other side around the inner circumference so that water can be supplied only to the one-way inclined flow paths 132 and connected to one circumference of the turbine power generation means (1) disposed on one side. It may be configured to include a conical expansion tube 22 is formed.

In addition, the water discharging water jet pipe 4 is connected to the other side of the turbine power generation means 1 disposed on the other side by a flange joint, and the rear side of the ship, as shown in Figs. It protrudes to the outside and discharges water into the sea or river to gain momentum.

That is, the water discharge water jet pipe 4 is composed of inner and outer pipes connected by a plurality of connecting rods, and discharges water through the inner and outer pipes to obtain the propulsive force of the ship.

The charging means 5 is connected in parallel with the plurality of generators 12 to charge the electricity generated by the plurality of generators 12, which is already known as a charger.

The operation control unit 6 is connected to the pump M and connected to the charging unit 5 to operate and control the pump M, the charging unit 5, and respective valves. The water discharging water jet pipe 4 is provided with a recirculation means 9 for recirculating the fluid discharged through the water discharging water jet pipe 4 to the water tank L without discharging it to the outside.

Hereinafter, a process of obtaining a propulsion force of a ship and generating electricity through the ship propulsion device according to the present invention configured as described above will be described as follows.

First, electricity generation and water jet propulsion methods will be described.

When the pump M in the water tank L shown in FIG. 7 is operated by an engine not shown, water having pressure is supplied to the water supply pipe L1, and the water having pressure is the water supply pipe L1 Through the conical flow path 23 formed around the inner circumference of the conical expansion tube 22 of, it passes through the one-way inclined flow path 132 formed on the inner side of the turbine power generation means 1 disposed on the first side.

Next, the water having a pressure that has passed through the one-way inclined passages 132 of the turbine power generation means 1 disposed on the first side is a turbine blade 143 formed around the inner other side of the turbine power generation means 1 disposed at the first side. By rotating the rotating turbine unit 14 as the turbine blades 143 are rotated by colliding with the field, electricity generated by generating electricity from the generator 121 of the turbine generating means 1 disposed at the first side is charged. Supply to means (5).

Then, the fluid having a pressure discharged from the turbine power generation means 1 disposed on the first side is a one-way inclined flow path 132 of one or more turbine power generation means 1 disposed on the other side of the turbine power generation means 1 disposed on the first side. ) Is supplied to the turbine blades 143 and rotates the turbine blades 143, thereby generating power generation in one or more turbine power generation means 1 disposed on the other side of the turbine power generation means 1 disposed on the first side. Can be produced.

And finally, the water with the pressure discharged from the turbine power generation means (1) disposed on the other side is discharged to seawater or river water through the water discharge water jet pipe (4) to obtain the propulsion of the ship.

Accordingly, the present invention provides a turbine power generation means (1) in multiple stages between the water supply pipe (L1) and the water discharge water jet pipe (4) in the direction of movement of water to continuously move water with pressure while obtaining the propulsion force of the ship. In addition, it is possible to obtain the propulsion power of the ship only by supplying water with pressure, and it can be charged by continuously generating and producing electricity.

Therefore, in the present invention, the electricity charged in the charging means 5 can be used for a separate purpose in a ship through the operation of the operation control unit 6.

In addition, the present invention is a method of obtaining the propulsive power of a ship only by supplying water with pressure, as shown in the accompanying drawings, by operating the recirculation means (9) to discharge the water to the outside of the ship through the water jet pipe (4). Block the fluid that is being produced.

The following describes the electric propulsion method.

In the operation of the recirculation means 9, the fluid passing through the turbine power generation means 1 is discharged without discharging the fluid discharged through the water jet pipe 4 to the outside, and when the temporary lock valve 92 is closed, the water discharge water jet pipe. When the fluid discharged to the outside of the ship is blocked through (4), when the circulation valve 91 that circulates the fluid filled in the water discharge water jet pipe (4) to the water tank (L) is opened, the discharge water It is stored back into the water tank by the return pipe 93 connected on the jet pipe 4. At this time, the electric propulsion method is used by operating the ship propulsion motor 7 connected to the charging device 5 for storing the generated electricity.

In particular, in the process of producing electricity through the multi-stage turbine power generation means 1 as described above, the present invention supplies water with pressure to the one-way inclined flow paths 132 formed in each turbine power generation means 1, As the water supplied inclined in one direction from each turbine power generation means 1 collides with the swash plate 143a of the turbine blades 143 inclined in the other direction in the opposite direction, the power generation rotational force of the rotary turbine unit 14 is maximized. It is a useful invention that can maximize the production efficiency of electricity by improving it.

In addition, as shown in Figure 1, the ship propulsion device according to the present invention is provided in the lower rear of the ship, which is the inner rear of the water discharge water jet pipe 4, and is provided to protrude to the rear of the ship at the rear. It may further include a ship propulsion motor 7 provided with a propeller 71 in contact with the river.

In addition, the operation control unit 6 may be further connected to the ship propulsion motor 7 to supply electricity from the charging means 5 to the ship propulsion motor 7 to operate and control the ship propulsion motor 7.

Accordingly, the present invention supplies the water of the water tank L to the multi-stage turbine power generation means 1 as described above, and discharges water through the water discharge water jet pipe 4 to obtain the propulsive power of the ship. Together, the operation control unit 6 is operated and controlled to supply electricity charged in the charging means 5 to the ship propulsion motor 7 to operate the ship propulsion motor 7 to increase the propulsion force of the ship propulsion motor 7 together. There is also an advantage that can be used.

Although the preferred embodiment of the present invention has been described above, the present invention can use various changes, modifications, and equivalents. It is clear that the present invention can be applied in the same manner by appropriately modifying the above embodiments. Therefore, the above description does not limit the scope of the invention determined by the limits of the following claims.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but it will be apparent to those of ordinary skill in the art that various modifications can be made without departing from the scope of the present invention.

[Explanation of code]

1: Turbine power generation means

2: liquid supply pipe

21,23: Euro

22: conical expansion tube

11: housing

111: body

112: flange portion

113: installation space

12: generator

121: rotating shaft

13: fixing member

131: inclined wing

132: inclined passage

14: rotary turbine unit

141: vertical disc

142: inner cylindrical tube

143: turbine blade

143a: swash plate

144: cylindrical tube

145: discharge hole

4: Water discharge water jet pipe

5: charging means

6: operation control unit

7: Ship propulsion motor

71: propeller

Claims

In the hybrid ship propulsion system having a water jet propulsion method and an electric propulsion method,

A multi-stage rotary turbine unit 14;

A multi-stage turbine power generation means (1) receiving rotational force from each of the multi-stage rotary turbine units;

A discharge water jet pipe (4) connected to one side around the other side of the turbine power generation means disposed on the other side of the first and protruding rearward to discharge water to obtain a propulsion force;

A pump (M) for supplying water to the rotary turbine;

A water tank (L) to which the pump is connected to supply fluid to the turbine power generation means;

Recirculation means (9) for recirculating the fluid discharged through the discharged water jet pipe to the water tank without discharging it to the outside;

A charging device (5) for storing the electric power generated by the turbine generating means;

A hybrid ship propulsion system having a water jet propulsion method and an electric propulsion method using a turbine generator, comprising: a ship propulsion motor (7) operated by the electric power of the charging device.
The method of claim 1,

A hybrid having a water jet propulsion method and an electric propulsion method using a turbine generator, characterized in that the water supplied to the rotating turbine part 14 is supplied through a conical flow path inside the conical expansion pipe part 22 Ship propulsion system.
The method of claim 2,

The rotation turbine part 14 includes a vertical disk 141 having a shaft hole through which the rotation shaft 121 of the generator is installed,

An inner cylindrical tube 142 protruding from the other side of the circumference of the vertical disk,

It includes a turbine blade 143 formed at equal intervals around the outer periphery of the inner cylindrical tube,

Hybrid ship propulsion system having a water jet propulsion method and an electric propulsion method using a turbine generator, characterized in that the rotation by the water supplied from the conical flow path (21, 23).
The method of claim 1,

The recirculation means 9 temporarily locks the water discharged through the discharge water jet pipe 4 without discharging it to the outside;

A circulation valve 91 for circulating the water filled in the discharge water jet pipe by the lock valve to the water tank,

Hybrid ship propulsion system having a water jet propulsion method and an electric propulsion method using a turbine generator, characterized in that it comprises a return pipe connected to the discharge water jet pipe (4).