CN110195683A - A kind of floatation type trunnion axis runner wave-energy power generation equipment and its application - Google Patents

Abstract

The present invention relates to a floating horizontal axis runner wave energy power generation equipment and its application. The power generation equipment includes a box on which a wave energy absorbing device and a power generating device are arranged. The wave energy absorbing device includes a horizontal A double-click involute runner is installed on the horizontal shaft, and one end of the horizontal shaft is connected to the power generating device. When the double-click involute runner drives the horizontal shaft to rotate under the impact of waves, the power generating device generates electric energy. . The floating horizontal axis runner wave energy power generation equipment of the present invention adopts the direct drive connection of the horizontal horizontal axis, which saves the intermediate hydraulic device, so that the efficiency of energy conversion is greatly improved. In the present invention, there is no friction, no lubrication, and no contact between the horizontal shaft and the magnetic suspension bearing, so that the double-click involute runner can rotate to the maximum after capturing the wave energy, increasing the speed, thereby reducing the starting torque of the generator, and improving the power generation efficiency.

Description

A floating horizontal axis runner wave energy generation equipment and its application

technical field

The invention relates to a floating horizontal axis runner wave energy generating equipment and its application, belonging to the technical field of ocean energy power generation.

Background technique

The horizontal axis power generation device is relatively mature among the tidal current energy utilization devices. The axial direction is consistent with the ocean current direction, the impeller is coaxial with the power generation equipment, the energy conversion rate is high, and the operation is stable.

British MCCT company has developed "Seea-Flow" and "Sea--Gen" tidal current power generation devices, among which "Sea-Gen" has been put into commercial application. Both of these devices use horizontal rotating shafts to transmit the power of the impeller to the power generation device, which can be raised and lowered in water for easy maintenance. VerdaantPower Company of the United States has designed a horizontal-axis three-blade fixed-pitch tidal current energy generation device, which realizes high-efficiency energy harvesting in a wide flow velocity range. Korea Ocean University has developed a horizontal axis floating wave energy device, which mainly drives the water turbine to rotate through the water bodies on both sides rising and falling with the waves, and then transmits the power to the power generation equipment through the power transmission mechanism. The fixed oscillating water column wave power generation device developed by scientists from Australia and other countries is mainly composed of a shore-based fixed part and a two-way water turbine air chamber. When waves enter the air chamber, the gas drives the water turbine to rotate, and then drives the generator to generate electricity. In addition to the research on the ocean energy conversion device itself, many researchers have also conducted research on the influence of ocean conditions on wave energy conversion devices.

Contents of the invention

Aiming at the deficiencies of the prior art, the present invention provides a floating horizontal axis runner wave energy generating equipment.

The invention also provides a method for using the wave energy generating equipment of the floating horizontal axis runner.

Technical scheme of the present invention is as follows:

A floating horizontal axis runner wave energy power generation equipment, including a box body, on which a wave energy absorbing device and a power generating device are arranged, the wave energy absorbing device includes a horizontal shaft, and a double-click type is installed on the horizontal shaft One end of the horizontal shaft of the involute runner is connected to the power generating device. When the double-click involute runner drives the horizontal shaft to rotate under the impact of waves, the power generating device generates electric energy.

Preferably, the box body is a cuboid, an arc-shaped flow channel is provided on the upper surface of the cuboid, and baffles are provided on both sides of the arc-shaped flow channel.

Preferably, the horizontal axis runs through the baffles on both sides of the arc-shaped flow channel, and the double-click involute runner is located between the baffles on both sides of the arc-shaped flow channel.

Preferably, magnetic suspension bearings are installed at both ends of the horizontal shaft.

Preferably, the power generating device is a generator.

Preferably, one end of the horizontal shaft is connected to the rotor of the generator through a magnetic coupling.

Preferably, the magnetic suspension bearing, the magnetic coupling, and the generator are all sealed and packaged in a casing.

Preferably, the arc-shaped flow channel is a multi-arc flow channel.

Preferably, the double-click involute wheel is connected to the horizontal shaft through a key or a pin.

Preferably, the bottom end of the arc-shaped flow channel is a water inlet, and the high end is a trumpet-shaped return flow channel.

A working method of a floating horizontal axis runner wave energy generating device, comprising the following steps:

(1) The floating horizontal axis runner wave energy generating equipment is placed in the ocean as a whole, and is fixed on the seabed through mooring cables and anchors;

(2) When the water inlet is at the wave crest, the waves rush into the arc-shaped flow channel from the water inlet of the arc-shaped flow channel, and then impact the double-click involute runner to make the double-click involute runner rotate; when the water inlet is at the trough , the water in the return flow channel returns to impact the double-click involute runner due to the action of potential energy, so that the double-click involute runner rotates in the same direction.

(3) When the double-click type involute runner rotates, it drives the horizontal shaft to rotate at the same time, and the horizontal shaft then drives the power generating device to generate electricity.

The beneficial effects of the present invention are:

1) The floating horizontal axis runner wave energy power generation equipment of the present invention adopts the direct drive connection of the horizontal horizontal axis, which saves the intermediate hydraulic device, so that the efficiency of energy conversion is greatly improved.

2) In the present invention, there is no friction, no lubrication, and no contact between the horizontal shaft and the magnetic suspension bearing, so that the double-click involute runner can rotate to the maximum after capturing wave energy, increase the speed, and then reduce the starting torque of the generator. Improve power generation efficiency.

3) The invention adopts the principle of oscillating water column power generation and the fusion design of the floating box structure, which can effectively reduce the erosion and damage of equipment caused by waves, and at the same time realize the maximum range of wave energy utilization and high power generation efficiency. The overall structural stability is good, the economic cost is low, and it is suitable for offshore power generation, offshore instrument power supply, and intelligent deep-sea fishery cage culture power supply.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the wave energy generating equipment of the present invention;

Fig. 2 is a schematic diagram of the connection structure between the wave energy absorbing device and the power generating device in the present invention;

Fig. 3 is a schematic diagram of the working state of the wave energy generating equipment of the present invention;

Fig. 4 is a schematic structural view of the power generating device part in the present invention;

Fig. 5 is a structural schematic diagram of anchoring and fixing the wave energy generating equipment of the present invention;

Fig. 6 is a top view of anchoring the wave energy generating equipment of the present invention in Fig. 5;

Among them: 1. Cabinet; 2. Wave energy absorbing device; 3. Power generation device; 4. Water inlet; 5. Horizontal shaft; 6. Double-click involute runner; 7. Magnetic suspension bearing; 8. Magnetic coupling ; 9, generator; 10, return flow channel; 11, multi-arc flow channel; 12, anchor; 13, mooring line.

Detailed ways

The present invention will be further described below through the embodiments and in conjunction with the accompanying drawings, but not limited thereto.

Example 1:

As shown in Figures 1 to 4, this embodiment provides a floating horizontal-axis runner wave energy power generation equipment, including a box 1, on which a wave energy absorbing device 2 and a power generating device 3 are arranged, and the wave energy Energy absorbing device 2 comprises a horizontal shaft 5, and double-click type involute runner 6 is installed on the horizontal shaft 5, and one end of horizontal shaft 5 is connected with described power generation device 3, when double-click type involute runner 6 The impact drives the horizontal shaft 5 to rotate, so that the power generating device 3 generates electric energy.

Among them, the box body 1 is a cuboid, and an arc-shaped flow channel is arranged on the upper surface of the cuboid. The arc-shaped flow channel is a multi-arc flow channel 11 composed of multiple arcs. It is a trumpet-shaped return flow channel 10, and baffle plates are installed on both sides of the arc-shaped flow channel.

The horizontal shaft 5 runs through the baffles on both sides of the arc-shaped flow channel. The double-click involute runner 6 is located between the baffles on both sides of the arc-shaped flow channel. The double-click involute runner 6 is connected to the horizontal shaft 5 through a key.

The two ends of the horizontal shaft 5 are equipped with magnetic suspension bearings 7, and the two magnetic suspension bearings 7 are respectively located outside the baffle plates on both sides and are encapsulated by a sealed housing.

Generator 3 is selected from a generator, and the specific model of the generator is selected according to the design requirements. One end of the horizontal shaft 5 is connected with the rotor of the generator through a magnetic coupling 8 . Magnetic coupling 8, generator also all select for use sealed casing to carry out encapsulation, prevent seawater from eroding, prolong the service life of equipment.

As shown in Figures 5 and 6, the entire power generation equipment is connected to the seabed through a mooring system to prevent the power generation equipment from drifting away with the waves. The mooring system comprises anchors 12 and mooring cables 13 (four) and the mooring points are arranged at 90°. The water inlet faces the facing wave side. In order to ensure the stability of the device’s power generation, the anchor 12 is used to fix the seabed, and the device is connected to the device through the mooring cable 13. The mooring system limits the heave and horizontal motion of the device at sea level, so that The device can still generate electricity normally and stably in a floating state under the action of wind and waves. Power transmission uses submarine cables, and the use of mooring systems prevents submarine cables from being damaged under the action of wind, waves and currents.

Example 2:

A floating horizontal axis runner wave energy power generation equipment, the structure is as described in embodiment 1, the difference is that: the double-click involute runner 6 and the horizontal shaft 5 are connected by pins.

Example 3:

A working method of a floating horizontal axis runner wave energy power generation device, using the power generation device described in Embodiment 1 or 2, the specific working process includes the following steps:

(1) Place the floating horizontal axis runner wave energy generation equipment in the ocean as a whole; according to the use environment and power consumption requirements, one floating horizontal axis runner wave energy generation equipment can be placed, or multiple can be placed in series, The generator is connected to external electrical equipment or electrical storage equipment through cables, and the bottom end of the entire power generation equipment is fixedly connected to the seabed through mooring cables 13 and anchors;

(2) When a sea wave hits, the water inlet 4 is in a crest state, and the sea wave rushes into the arc-shaped flow channel from the water inlet 4 of the arc-shaped flow channel, and then impacts the double-click involute runner 6, making the double-click involute runner 6 The line runner 6 rotates; because the flow channel is a multi-arc flow channel 11, the wave water entering the water inlet 4 can have kinetic energy and potential energy at the same time, and push the double-click type involute runner 6 to rotate. When the water inlet 4 is in the trough state, the water body in the trumpet-shaped return flow channel 10 pushes the upper side of the double-click involute runner 6 to rotate in the same direction due to gravity, and together constitute a single circumferential direction of the double-click involute runner 6. rotational movement;

(3) When the double-click involute runner 6 rotates, the horizontal shaft 5 rotates accordingly, and the horizontal shaft 5 then drives the rotor of the generator to rotate through the magnetic coupling 8, thereby generating current to generate electricity, and finally the cable is supplied to the external use electrical equipment or electrical storage equipment.

Claims (10)

1. a kind of floatation type trunnion axis runner wave-energy power generation equipment, including a cabinet, which is characterized in that be provided on cabinet Wave energy absorbing device and power generator, the wave energy absorbing device include a trunnion axis, are equipped with double click type on trunnion axis Involute runner, one end connection of trunnion axis power generator, when double click type involute runner under the impact of wave band Dynamic trunnion axis rotation, so that power generator be made to produce electricl energy.

2. floatation type trunnion axis runner wave-energy power generation equipment as described in claim 1, which is characterized in that the cabinet is one Cuboid, the upper surface of cuboid are provided with an arced flow path, and the two sides of arced flow path are provided with baffle.

3. floatation type trunnion axis runner wave-energy power generation equipment as claimed in claim 2, which is characterized in that the trunnion axis passes through Two side baffles of arced flow path are worn, double click type involute runner is located between two side baffle of arced flow path.

4. floatation type trunnion axis runner wave-energy power generation equipment as described in claim 1, which is characterized in that the trunnion axis Both ends are equipped with magnetic suspension bearing.

5. floatation type trunnion axis runner wave-energy power generation equipment as claimed in claim 4, which is characterized in that the power generator Select generator.

6. floatation type trunnion axis runner wave-energy power generation equipment as claimed in claim 5, which is characterized in that the trunnion axis One end is connected by the rotor of magnetic coupling and generator.

7. floatation type trunnion axis runner wave-energy power generation equipment as claimed in claim 6, which is characterized in that the magnetic suspension shaft It holds, magnetic coupling, generator select shell to be sealed encapsulation.

8. floatation type trunnion axis runner wave-energy power generation equipment as described in claim 1, which is characterized in that the double click type is gradually Burst at the seams runner and trunnion axis passes through key or pin connection.

9. floatation type trunnion axis runner wave-energy power generation equipment as claimed in claim 2, which is characterized in that the arced flow path Bottom end be water inlet, it is high-end be tubaeform reflux runner.

10. a kind of working method of such as described in any item floatation type trunnion axis runner wave-energy power generation equipment of claim 1-9, The following steps are included:

(1) floatation type trunnion axis runner wave-energy power generation equipment is integrally placed in ocean, and is connected by mooring line with anchor Position is carried out in sea bed to fix；

(2) when wave crest, wave rushes in arced flow path from the water inlet of arced flow path for water inlet, and then impacts double click type and gradually open Line runner rotates double click type involute runner；When trough, the water for the runner that flows back is rushed since potential energy acts on reflux for water inlet Double click type involute runner is hit, so that the equidirectional rotation of double click type involute runner.

(3) when double click type involute runner rotates, while trunnion axis being driven to rotate, trunnion axis and then drive power generator hair Electricity.