阅读说明：本技术 一种螺旋形通道液态金属磁流体波浪能发电装置 (Spiral channel liquid metal magnetofluid wave energy power generation device ) 是由 李永国 朱秋莹 束正勇 于 2020-06-19 设计创作，主要内容包括：本发明公开了一种螺旋形通道液态金属磁流体波浪能发电装置,包括磁体、磁流体发电通道、内电极、外电极、磁流体通道过渡段、活塞缸、导电液态金属,磁流体发电通道穿过磁体的磁孔；磁流体发电通道的两端分别连接一磁流体通道过渡段的一端,磁流体通道过渡段的另一端和活塞缸连接；活塞缸内设有一活塞,活塞和活塞缸同一中心轴设置,活塞、活塞缸、磁流体通道过渡段和磁流体发电通道形成一个密闭的连通空间,连通空间内充满液态金属,液态金属在磁流体发电通道内沿轴向流动,切割磁力线,磁场方向为径向,产生切向的感应电流。本发明效率高,可在低海况下运行,对各种波高具有很好的兼容性,可直接利用波浪能发电。(The invention discloses a spiral channel liquid metal magnetofluid wave energy power generation device which comprises a magnet, a magnetofluid power generation channel, an inner electrode, an outer electrode, a magnetofluid channel transition section, a piston cylinder and conductive liquid metal, wherein the magnetofluid power generation channel penetrates through a magnetic hole of the magnet; the two ends of the magnetofluid power generation channel are respectively connected with one end of a magnetofluid channel transition section, and the other end of the magnetofluid channel transition section is connected with the piston cylinder; a piston is arranged in the piston cylinder, the piston and the piston cylinder are arranged on the same central shaft, the piston cylinder, the magnetic fluid channel transition section and the magnetic fluid power generation channel form a closed communication space, liquid metal is filled in the communication space, the liquid metal flows in the magnetic fluid power generation channel along the axial direction to cut magnetic lines, and tangential induced current is generated in the radial direction of the magnetic field. The invention has high efficiency, can operate under low sea conditions, has good compatibility to various wave heights, and can directly utilize wave energy to generate electricity.)

1. A spiral channel liquid metal magnetofluid wave energy power generation device is characterized by comprising a magnet, a magnetofluid power generation channel, an inner electrode, an outer electrode, a magnetofluid channel transition section, a piston cylinder and conductive liquid metal, wherein the magnetofluid power generation channel penetrates through a magnetic hole of the magnet; the two ends of the magnetofluid power generation channel are respectively connected with one end of a magnetofluid channel transition section, and the other end of the magnetofluid channel transition section is connected with the piston cylinder; the piston, the piston cylinder, the magnetic fluid channel transition section and the magnetic fluid power generation channel form a closed communication space, liquid metal is filled in the communication space, the liquid metal flows in the magnetic fluid power generation channel along the axial direction to cut magnetic lines of force, the magnetic field direction is radial, and tangential induced current is generated.

2. The spiral channel liquid metal magnetofluid wave energy generation device of claim 1, wherein the magnets comprise four pieces, namely a first magnet, a second magnet, a third magnet and a fourth magnet.

3. The spiral channel liquid metal magnetic fluid wave energy power generation device of claim 2, said first and third magnets charging an S-pole.

4. The spiral channel liquid metal magnetic fluid wave energy power generation device of claim 2, wherein the second magnet and the fourth magnet are charged with N poles.

5. The spiral channel liquid metal magnetofluid wave energy power plant of claim 1, said inner and outer electrodes forming a load circuit.

6. The spiral channel liquid metal magnetohydrodynamic wave energy generation device of claim 1, wherein the magnetohydrodynamic generation channel is spiral.

7. The spiral channel liquid metal magnetofluid wave energy power generation device of claim 1, the piston cylinder being connected to a magnetofluid transition section, the transition section being connected to the magnetofluid channel.

Technical Field

The invention belongs to the field of new energy development and utilization, and particularly relates to a spiral channel liquid metal magnetohydrodynamic wave energy power generation device which converts wave energy into electric energy by utilizing a magnetohydrodynamic generator.

Background

Wave energy is used as a strategic renewable energy source, the wave energy power generation technology is greatly concerned by countries in the world, and at present, the wave energy is converted into electric energy in various ways, but the problem of low conversion efficiency generally exists, the reliability is not high, and the cost is still high compared with other renewable energy sources. The basic principle of magnetohydrodynamic generation is faraday's law of electromagnetic induction, which produces electrical energy by the interaction of a moving conductive fluid with a magnetic field. The conductive fluid interacts with the magnetic field to generate electric energy, and the fluctuation motion of the waves is converted into the reciprocating motion of the liquid metal. According to the principle of the magnetohydrodynamic generator, the power generation mode can be well slow with the wave motion speed. The motion characteristics of huge acting force are matched. The novel wave energy power generation technology with high conversion efficiency, high power density, compact structure and good mobility can be formed.

At present, wave energy is converted into electric energy in various modes, but the problems of low conversion efficiency, low reliability and high cost compared with other renewable energy sources generally exist. The liquid metal magnetofluid wave energy direct power generation system adopts a high-efficiency liquid metal magnetofluid power generation technology. Wave energy fluctuation motion is converted into reciprocating motion of liquid metal, and then power generation is achieved. The existing wave energy utilization also has the problems of high cost, insufficient stability and reliability and the like.

Disclosure of Invention

The invention provides a spiral channel liquid metal magnetofluid wave energy power generation device, and aims to solve the technical problems of high cost, insufficient stability and reliability and the like in wave energy utilization in the prior art.

The invention is realized by the following technical scheme:

a spiral channel liquid metal magnetofluid wave energy power generation device comprises a magnet, a magnetofluid power generation channel 2, an inner electrode 1, an outer electrode 3, a magnetofluid channel transition section 51, a piston cylinder 52 and conductive liquid metal, wherein the magnetofluid power generation channel 2 penetrates through a magnetic hole of the magnet; the two ends of the magnetofluid power generation channel 2 are respectively connected with one end of a magnetofluid channel transition section 51, and the other end of the magnetofluid channel transition section 51 is connected with the piston cylinder 52; the piston cylinder 52 is internally provided with a piston, the piston and the piston cylinder 52 are arranged on the same central shaft, the piston cylinder 52, the magnetic fluid channel transition section 51 and the magnetic fluid power generation channel 2 form a closed communication space, the communication space is filled with liquid metal, the liquid metal flows in the magnetic fluid power generation channel 2 along the axial direction to cut magnetic lines, the magnetic field direction is radial, and tangential induced current is generated.

Further, the magnet includes four pieces, i.e., a first magnet 41, a second magnet 42, a third magnet 43, and a fourth magnet 44.

Further, the first magnet 41 and the third magnet 43 magnetize the S-pole.

Further, the second magnet 42 and the fourth magnet 44 charge the N pole.

Further, the inner electrode and the outer electrode form a load circuit.

Further, the magnetofluid power generation channel is spiral.

Furthermore, the piston cylinder is connected with a magnetic fluid transition section, and the transition section is connected with a magnetic fluid channel.

The invention utilizes magnetohydrodynamic electricity generation to convert wave energy into electric energy without a traditional rotating generator; the structure is compact, the arrangement is relatively simple, the reliability is good, and the generating efficiency is high. Compared with the existing liquid metal magnetohydrodynamic power generation device, the magnetohydrodynamic power generation device has the advantages that the magnetofluid power generation channel is changed, the spiral magnetofluid power generation channel is adopted, the design improves the uniformity of a flow field, the flow loss in the magnetofluid channel is greatly reduced, the magnetic field intensity and the magnetic field space uniformity are improved, and the power generation efficiency is further improved.

The invention has the advantages that:

(1) the efficiency is high;

(2) can be operated under low sea conditions;

(3) the structure is compact, the arrangement is relatively simple and quick, and the reliability is good; no gear device, lever, turbine mechanism, driving belt, bearing, transmission system, etc.;

(4) the capital investment and the maintenance cost are low;

(5) the method has good compatibility to various wave heights;

(6) the wave energy generator can be directly used for generating electricity without a traditional rotating generator.

Drawings

Fig. 1 is a schematic view of the overall structure of a spiral channel liquid metal magnetofluid wave energy power generation device.

Fig. 2 is a schematic cross-sectional structure diagram of a spiral channel liquid metal magnetofluid wave energy power generation device of the present invention.

The symbols in the figures represent: an inner electrode 1; a magnetohydrodynamic generation channel 2; an outer electrode 3; a first magnet 41; a second magnet 42; a third magnet 43; a fourth magnet 44; a magnetic fluid transition section 51; a piston cylinder 52.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings: the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

As shown in fig. 1 and 2, the generator in the figure comprises a magnet, a magnetofluid power generation channel 2, an inner electrode 1, an outer electrode 3, a magnetofluid channel transition section 51, a piston cylinder 52 and conductive liquid metal. The inner electrode 1 and the outer electrode 3 form a load circuit. The magnetohydrodynamic generation channel 2 is spiral. The piston cylinder is connected with the magnetic fluid transition section, and the transition section is connected with the magnetic fluid channel.

The magnets include four pieces, a first magnet 41, a second magnet 42, a third magnet 43, and a fourth magnet 44. The first magnet 41 and the third magnet 43 magnetize the S-pole. The second magnet 42 and the fourth magnet 44 charge the N pole. The magnetohydrodynamic generation channel 2 passes through the magnetic hole of the magnet; the two ends of the magnetofluid power generation channel 2 are respectively connected with one end of a magnetofluid channel transition section 51, and the other end of the magnetofluid channel transition section 51 is connected with the piston cylinder 52; a piston is arranged in the piston cylinder 52, the piston and the piston cylinder 52 are arranged on the same central shaft, and the piston, the piston cylinder 52, the magnetic fluid channel transition section 51 and the magnetic fluid power generation channel 2 form a closed communication space.

The communicating space is filled with liquid metal, the liquid metal flows in the magnetofluid power generation channel 2 along the axial direction to cut magnetic lines of force, the direction of the magnetic field is radial, and tangential induced current is generated.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.