CN110429792A - A kind of split type disc type magnetohydrodynamic generator channel - Google Patents
A kind of split type disc type magnetohydrodynamic generator channel Download PDFInfo
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- CN110429792A CN110429792A CN201910749469.8A CN201910749469A CN110429792A CN 110429792 A CN110429792 A CN 110429792A CN 201910749469 A CN201910749469 A CN 201910749469A CN 110429792 A CN110429792 A CN 110429792A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K44/00—Machines in which the dynamo-electric interaction between a plasma or flow of conductive liquid or of fluid-borne conductive or magnetic particles and a coil system or magnetic field converts energy of mass flow into electrical energy or vice versa
- H02K44/08—Magnetohydrodynamic [MHD] generators
- H02K44/12—Constructional details of fluid channels
- H02K44/14—Circular or screw-shaped channels
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Abstract
A kind of split type disc type power channel, including air inlet section (1), linkage section (2) and disc type power generation exhaust section (3).Air inlet section (1), linkage section (2) and disc type power generation exhaust section (3) successively order coaxial connection from top to bottom.Air inlet section (1) is tubular；Disc type generates electricity exhaust section (3) as disc, there is certain altitude；Linkage section (2) is circular flange disk.The outer diameter of air inlet section (1) is smaller than the outer diameter of linkage section (2) and disc type power generation exhaust section (3), and disc type power channel monnolithic case is in up-small and down-big shape.Internal disc type power generation exhaust section (3) is respectively disc type generating section and exhaust section from the top down；Disc type generating section has radially been sequentially arranged accelerating sections (5), anode (6), generating section (7) and cathode (8) from inside to outside, and the outlet of cathode (8) is communicated with exhaust section；Air inlet section (1) is connect to form split type disc type power channel by linkage section (2) with disc type power generation exhaust section (3).
Description
Technical field
The present invention relates to a kind of magnetohydrodynamic generator lane devices, in particular to a kind of disc type magnetohydrodynamic generator channel.
Background technique
Magnetohydrodynamic generator is a kind of new-generation mode that thermal energy is directly changed into electric energy, after starting from 50 years 20th century
Phase, its working principle is that being based on Faraday's electromagnetic induction law.Conduction is carried out using fluid, instead solid, and makes conductive fluid work
Matter with certain speed by with the orthogonal magnetic field in flow direction, cutting magnetic line and induced electromotive force, and then produce electricl energy.
Power channel is the key that magnetic fluid generating technology.High-temperature electric conduction fluid with hypersonic flow through power channel, in magnetic
Under field action, portion of energy is converted into electric energy and Joule heat, and enthalpy of the gases reduces.In this process, the structure of power channel with
Performance will directly determine generating efficiency.The flowing of plasma is sufficiently complex in power channel, there are electric field, magnetic field and flow field
Coupling, also with ionization process and deposit, need to lay the sensor and probe of multiple performance measurement thus in power channel,
Therefore the design of power channel structure is very for the research of the power channel plasma course of work and raising generating efficiency
Important.
Disc type power channel cooperates screwed pipe shape superconducting magnet to use, and constitutes disc type Magnetohydrodynamic(MHD) generator.Disc type magnetic fluid hair
Motor has the characteristics that compact, light-weighted.The warm hole shape such as hollow circular-tube of screwed pipe shape superconducting magnet is the room that magnetic field generates
Warm space.Magnetic field is concentrated mainly on the middle section in tubular temperature hole, and the generating section of disc type power channel also is disposed on this section, with abundant
Using the space, generated output and generating efficiency are improved.Current disc type power channel reported in the literature is super across screwed pipe shape
The cylinder-shaped monolithic construction in magnetizer room temperature space, existing a kind of monoblock type disc type Magnetohydrodynamic(MHD) generator experimental rig such as figure
Shown in 1, which is mainly made of superconducting magnet, monoblock type disc type channel, and monoblock type disc type channel is mounted on superconducting magnet
Wen Kongzhong, the gap of surrounding are exactly that data draw space of lines.The a bit of middle part in the monoblock type disc type channel is generating section, up and down
It is longer air inlet section and exhaust section respectively, the outer diameter of generating section, air inlet section and exhaust section is equal.In research disc type power channel
When the flowing of plasma, heating power and unit for electrical property parameters, it need to be surveyed being buried in the disc type generating section in the middle part of power channel
The sensor and probe of amount temperature, pressure, characteristics of plasma, sensor and probe need the fire resisting very long across air inlet section periphery
Insulating layer, and drawn from bearing shell, it is very tired in cylinder-shaped integrally-built disc type power channel arrangement measurement sensor
Difficult, while it is also difficult to draw various data lines, cable outward, when design, is both needed to reserve between power channel and magnet
Biggish installation space, thus making full use of for magnet room temperature space is affected, reduce the volume of power channel, it is final to influence
Generated output reduces generating efficiency.
Summary of the invention
The shortcomings that in order to overcome above-mentioned existing disc type power channel, the present invention provide a kind of point suitable for magnetohydrodynamic generator
Body formula disc type power channel.
The split type disc type power channel of the present invention is made of air inlet section, linkage section and disc type power generation three component of exhaust section.Into
Sequence is coaxially arranged from top to bottom for gas section, linkage section and disc type power generation exhaust section, is sequentially connected.Air inlet section is tubular, disc type
Power generation exhaust section is disc, there is certain altitude.Linkage section is circular flange disk.The outer diameter of air inlet section is sent out than linkage section and disc type
The smaller outer diameter of electric exhaust section, the disc type power channel that air inlet section, linkage section connect composition with disc type power generation exhaust section are whole
Shape is in up-small and down-big shape.
The air inlet section is cylinder-shaped straight tube, is the annular channel that plasma working medium enters disc type power generation exhaust section,
Due to being only used for air inlet, the caliber of air inlet section is less than linkage section and disc type power generation exhaust section；The described disc type power generation exhaust section is in
Disc is disc type generating section and exhaust section respectively from the top down, and disc type generating section is disc type power channel core, from interior
To accelerating sections, anode, generating section and cathode has radially been sequentially arranged outside, cathode outlet is communicated with exhaust section.The connection
Section is circular flange disk, and flange top is connect with air inlet section, and lower part is connect with the disc type generating section of disc type power generation exhaust section.It is described
Air inlet section and disc type power generation exhaust section complete disc type power channel is mechanically connected to become through linkage section.Disc type hair
Electric channel is arranged in superconducting magnetic body temperature hole, and since the air inlet section outer diameter of upper part is small, the disc type power generation exhaust section outer diameter of lower part is big,
The top of the generating section of disc type power generation exhaust section has larger space to can be used for arranging a variety of measurement sensors and probe, and by data
Line is drawn.Entire disc type power channel is arranged with central axis, is passed through superconducting magnetic body temperature hole, is collectively formed disc type magnetic fluid with magnet
Generator.
The split type disc type power channel of the present invention is not necessarily to the reserved sensor between magnet Wen Kongyu disc type power channel and draws
The outer diameter in space out, disc type power generation exhaust section can make full use of magnet room temperature space, as far as possible close to warm bore dia to obtain more
Big power channel volume especially suitable for the research of power channel internal characteristic parameter and the course of work, and can be utilized fully
Generated output is improved in magnet room temperature space.
The plasma working medium is that the easily ionizables alkali metal such as inert gases and seed caesium, potassium such as argon gas or helium pass through
The high-temperature plasma air-flow that can be conductive being mixed to form.
The air inlet section of tubular wraps up bearing shell and flame-proof thermal insulation material liner, high-temperature plasma working medium from outside to inside
Thus air inlet section enters power channel.
The linkage section is circular flange disk, and the shell matching of center through hole and air inlet section, the two is by welding spiral shell
It tethers and connects.The outer of linkage section ring flange and disc type power generation exhaust section bearing shell match, by screw by air inlet section and disc type
Generate electricity exhaust section connection, and it is whole to form disc type power channel.
It is bearing shell outside the disc type power generation exhaust section, bearing shell can be internal water cooling structure.Disc type power generation
Inside exhaust section from the top down include disc type generating section and exhaust section two parts, disc type generating section radially, from inside to outside
Successively there are accelerating sections, anode, generating section and cathode.Cathode outlet is communicated with exhaust section, and middle section is fire resisting guarantor in exhaust section
Cylindrical core body made of adiabator constitutes annular waste air duct between the core and bearing shell.By air inlet section enter etc.
Ion working medium improves its flowing velocity after the accelerating sections of disc type generating section.The plasma of high-speed motion exists after accelerating
The generating section and magnetic field interaction of disc type generating section, realize power generation, and the electric energy of generation is external negative by anode, cathode connection
It carries, completes the output of electric energy.
It is close to the disc type generating section of disc type power generation exhaust section below the linkage section circular flange disk, is opened on ring flange
There is through-hole, sensor and probe protrude into disc type generating section across the through-hole of ring flange.The lead-out wire of sensor and probe can be from
It is drawn in magnet temperature hole above linkage section.
Beneficial effects of the present invention:
(1) the split type disc type channel of the present invention facilitates arrangement various kinds of sensors and probe, to carry out this new technology in a deep going way
Research provide condition, so as to accurately obtain the Parameters variation of generating section, to improve Magnetohydrodynamic(MHD) generator, provide can
By test data；
(2) split type disc type channel is used, power channel space can be increased, is conducive to the property for improving Magnetohydrodynamic(MHD) generator
Energy；
(3) the split type disc type power channel of the present invention reduces the weight in channel, convenient for the light-weight design in channel.
Detailed description of the invention
The existing monoblock type disc type Magnetohydrodynamic(MHD) generator experimental rig structure chart of Fig. 1；
Fig. 2 is split type disc type channel of the invention overall schematic；
Fig. 3 is that split type disc type channel and superconducting magnet cooperate embodiment schematic diagram；
In figure: 1 air inlet section, 2 linkage sections, 3 disc types power generation exhaust section, 4 air inlet pipe, 5 accelerating sections, 6 anodes, 7 generating sections, 8
Cathode, 9 sensors and probe, 10 attachment screws, 11 exhaust sections, 12 bearing shells, 13 superconducting magnets, 14 data lines draw sky
Between, 15 sensors and probe mounting plane, 16 monoblock type disc type channels.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and specific embodiments.
The split type disc type power channel of the present invention is by air inlet section 1, linkage section 2 and disc type power generation 3 three component structures of exhaust section
At.Sequence is coaxially arranged from top to bottom for air inlet section 1, linkage section 2 and disc type power generation exhaust section 3, is sequentially connected.Air inlet section 1 is circle
Tubular, disc type generates electricity exhaust section 3 as disc, there is certain altitude.Linkage section 2 is circular flange disk.The outer diameter of air inlet section 1 is than connecting
The smaller outer diameter of section 2 and disc type power generation exhaust section 3 is connect, what air inlet section 1, linkage section 2 and the disc type power generation connection of exhaust section 3 formed
Disc type power channel monnolithic case is in up-small and down-big, as shown in Figure 2.
As shown in figure 3, the air inlet section 1 in split type disc type channel is straight tube, plasma working medium is enabled to can smoothly enter into disk
Formula power generation exhaust section 3.It is from the top down disc type generating section and exhaust section, disc type generating section inside disc type power generation exhaust section 3 along diameter
To direction, it has been sequentially arranged accelerating sections 5, anode 6, generating section 7 and cathode 8 from inside to outside.Linkage section 2 will by attachment screw 10
Air inlet section 1 links together with disc type power generation exhaust section 3, forms split type disc type power channel.The flange table of Fig. 3 linkage section 2
Face is provided with through-hole, and all kinds of measurement sensors and probe protrude into disc type generating section across this through-hole, such as sensor and probe 9.It passes
The lead-out wire of sensor and probe can be drawn in the magnet temperature hole above linkage section through sensor and probe mounting plane 15.
The split type disc type power channel of the present invention, which is placed in screwed pipe shape superconducting magnet 13, constitutes disc type Magnetohydrodynamic(MHD) generator.Point
Data line is reserved between body formula disc type power channel and the warm hole of superconducting magnet 13 and draws space 14, and the flange surface of linkage section 2 is opened
There is through-hole, all kinds of measurement sensors and probe protrude into disc type generating section across this through-hole, such as sensor and probe 9.Sensor
It can be drawn through the data line of sensor and probe mounting plane 15 in the magnet temperature hole above linkage section with the lead-out wire of probe
It draws in space 14.
The space that the present invention is drawn without reserving sensor between magnet Wen Kongyu disc type power channel, disc type power generation row
The outer diameter of gas section is as close with warm bore dia as possible, to make full use of the warm hole space of superconducting magnet 13.
In the split type disc type power channel of the present invention, plasma working medium enters disc type power generation exhaust section 3 by air inlet section 1
Then air inlet pipe 4 raises speed by accelerating sections 5, pass through generating section 7 at a high speed.The parameter of plasma working medium passes through measurement sensor
It is acquired with probe 9.Plasma working medium is produced electricl energy in the magnetic field interaction that generating section 7 is generated with superconducting magnet 13, in sun
Potential difference is generated between pole 6 and cathode 8, by loading the power output of generation.Then plasma passes through 11 row of exhaust pipe
Out.
In the split type disc type power channel embodiment of the present invention, air inlet section 1 and linkage section 2 are by welded connecting, then pass through
Connection bolt 10 connects air inlet section 1 and linkage section 2 with disc type power generation exhaust section 3, and disc type power generation exhaust section 3 passes through pressure-bearing
Shell 12 guarantees whole intensity.The warm hole space of superconducting magnet 13 can more fully be utilized.
Claims (2)
1. a kind of split type disc type magnetohydrodynamic generator channel, it is characterised in that: the power channel includes air inlet section (1), connects
Connect section (2) and disc type power generation exhaust section (3)；Air inlet section (1), linkage section (2) and disc type power generation exhaust section (3) are from top to bottom successively
Order coaxial connection；Air inlet section (1) is tubular；Disc type generates electricity exhaust section (3) as disc, there is certain altitude；Linkage section (2)
For circular flange disk；The outer diameter of air inlet section (1) is smaller than the outer diameter of linkage section (2) and disc type power generation exhaust section (3), air inlet section (1),
The disc type power channel monnolithic case of linkage section (2) and disc type power generation exhaust section (3) connection composition is in up-small and down-big shape；Disc type hair
Internal electric exhaust section (3) is respectively disc type generating section and exhaust section from the top down；Disc type generating section is radially from inside to outside
It is sequentially arranged accelerating sections (5), anode (6), generating section (7) and cathode (8), the outlet of cathode (8) is communicated with exhaust section；Connection
Section (2) links together air inlet section (1) and disc type power generation exhaust section (3), forms split type disc type power channel.
2. fission disc type magnetohydrodynamic generator channel described in accordance with the claim 1, it is characterised in that: the split type disc type hair
There is data line to draw space (14) between electric channel and the warm hole of superconducting magnet (13)；The flange surface of linkage section (2) is provided with through-hole,
All kinds of measurement sensors and probe protrude into disc type generating section across this through-hole；The lead-out wire of sensor and probe through sensor and
Probe mounting plane (15) is drawn space (14) from the data line above linkage section and is drawn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910749469.8A CN110429792A (en) | 2019-08-14 | 2019-08-14 | A kind of split type disc type magnetohydrodynamic generator channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910749469.8A CN110429792A (en) | 2019-08-14 | 2019-08-14 | A kind of split type disc type magnetohydrodynamic generator channel |
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| Publication Number | Publication Date |
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| CN110429792A true CN110429792A (en) | 2019-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910749469.8A Pending CN110429792A (en) | 2019-08-14 | 2019-08-14 | A kind of split type disc type magnetohydrodynamic generator channel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111361720A (en) * | 2020-03-26 | 2020-07-03 | 中国科学院电工研究所 | Integrated magnetofluid propeller |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5010255A (en) * | 1990-01-05 | 1991-04-23 | General Dynamics Corporation, Convair Division | High current magnetohydrodynamic gigawatt pulse generator |
| CN1178038A (en) * | 1995-02-08 | 1998-04-01 | 詹姆斯·C·海斯 | Improved magnetohydrodynamic electric generator |
| CN1416208A (en) * | 2002-10-31 | 2003-05-07 | 顾卫平 | Liquid magnetic current typed electrical motor |
| CN106059244A (en) * | 2016-06-21 | 2016-10-26 | 南京航空航天大学 | Hall type magnetic fluid generator |
-
2019
- 2019-08-14 CN CN201910749469.8A patent/CN110429792A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5010255A (en) * | 1990-01-05 | 1991-04-23 | General Dynamics Corporation, Convair Division | High current magnetohydrodynamic gigawatt pulse generator |
| CN1178038A (en) * | 1995-02-08 | 1998-04-01 | 詹姆斯·C·海斯 | Improved magnetohydrodynamic electric generator |
| CN1416208A (en) * | 2002-10-31 | 2003-05-07 | 顾卫平 | Liquid magnetic current typed electrical motor |
| CN106059244A (en) * | 2016-06-21 | 2016-10-26 | 南京航空航天大学 | Hall type magnetic fluid generator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111361720A (en) * | 2020-03-26 | 2020-07-03 | 中国科学院电工研究所 | Integrated magnetofluid propeller |
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Application publication date: 20191108 |