CN114142710A - Electric energy extraction device in magnetohydrodynamic technology - Google Patents
Electric energy extraction device in magnetohydrodynamic technology Download PDFInfo
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- CN114142710A CN114142710A CN202111288296.8A CN202111288296A CN114142710A CN 114142710 A CN114142710 A CN 114142710A CN 202111288296 A CN202111288296 A CN 202111288296A CN 114142710 A CN114142710 A CN 114142710A
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- magnetohydrodynamic
- magnetic fluid
- electric energy
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- extraction
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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
-
- 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
- H02K44/085—Magnetohydrodynamic [MHD] generators with conducting liquids
-
- 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
- H02K44/10—Constructional details of electrodes
Abstract
The application belongs to the technical field of electric energy extraction in the magnetohydrodynamics technology, and in particular relates to an electric energy extraction device in the magnetohydrodynamics technology, which comprises: a pair of oppositely disposed magnetic poles; the magnetic fluid circulation channel is arranged in a magnetic field generated by the magnetic poles, two opposite electric energy extraction holes are formed in the side wall of the magnetic fluid circulation channel, an annular cooling cavity is formed in the side wall, and a cooling inlet and a cooling outlet which are communicated with the annular cooling cavity are formed in the outer wall surface of the magnetic fluid circulation channel; and a pair of electrodes, each electrode being inserted into one of the power extraction holes.
Description
Technical Field
The application belongs to the technical field of electric energy extraction in the magnetohydrodynamics technology, and particularly relates to an electric energy extraction device in the magnetohydrodynamics technology.
Background
The magnetohydrodynamics technology is a novel technology generated by fusing classical hydrodynamics and electrodynamics, and the main content of the technology comprises the steps of adding alkali metal salt easy to ionize into high-temperature fluid to generate plasma, further actively controlling the flow of the fluid through a magnetic field, and effectively inhibiting turbulence and secondary flow to reduce the flow resistance of the fluid.
The feasible application of the magnetohydrodynamic technology in an aircraft engine is that induced electromotive force is generated by a magnetic induction line in a cutting magnetic field relative to high-speed plasma airflow of an aircraft, that is, electric energy can be generated, the electric energy is extracted and applied to auxiliary work of the engine, the performance of the engine can be greatly improved, for example, the extracted electric energy is injected into engine gas, the gas flow can be accelerated, the exhaust speed of the engine is increased, and the thrust of the engine can be improved.
The present application has been made in view of the above problems.
It should be noted that the above background disclosure is only for the purpose of assisting understanding of the inventive concept and technical solutions of the present invention, and does not necessarily belong to the prior art of the present patent application, and the above background disclosure should not be used for evaluating the novelty and inventive step of the present application without explicit evidence to suggest that the above content is already disclosed at the filing date of the present application.
Disclosure of Invention
It is an object of the present application to provide an electrical energy extraction device in magnetohydrodynamic technology that overcomes or mitigates at least one of the technical disadvantages known to exist.
The technical scheme of the application is as follows:
an electric energy extraction device in magnetohydrodynamic technology comprises:
a pair of oppositely disposed magnetic poles;
the magnetic fluid circulation channel is arranged in a magnetic field generated by the magnetic poles, two opposite electric energy extraction holes are formed in the side wall of the magnetic fluid circulation channel, an annular cooling cavity is formed in the side wall, and a cooling inlet and a cooling outlet which are communicated with the annular cooling cavity are formed in the outer wall surface of the magnetic fluid circulation channel;
and a pair of electrodes, each electrode being inserted into one of the power extraction holes.
According to at least one embodiment of the present application, in the above-mentioned electric energy extraction apparatus in the mhd technology, a plurality of pressure test channels are provided in a side wall of the mhd flow channel, one end of each pressure test channel extends to an inner wall surface of the mhd flow channel, and the other end extends to an outer wall surface of the mhd flow channel.
According to at least one embodiment of the present application, the above-mentioned device for extracting electrical energy in magnetohydrodynamic technology further includes:
and the plurality of turbulence support plates are arranged in the annular cooling cavity.
According to at least one embodiment of the present application, in the above-mentioned electric energy extraction apparatus in the mhd technology, each spoiler support plate and the mhd flow channel are an integrally formed structure.
According to at least one embodiment of the present application, in the above-mentioned device for extracting electrical energy in mhd, two electrodes have annular protruding portions;
the electric energy extraction device in the magnetohydrodynamics technology further comprises:
and each nut is correspondingly sleeved on the periphery of one electrode and is in threaded fit connection with the magnetic fluid flow channel, and the corresponding annular convex part is tightly pressed on the outer wall surface of the magnetic fluid flow channel.
According to at least one embodiment of the present application, the above-mentioned device for extracting electrical energy in magnetohydrodynamic technology further includes:
and each insulating bush is correspondingly sleeved on one electrode and positioned between the corresponding electrode and the electric energy extraction hole.
According to at least one embodiment of the present application, in the above-mentioned mhd electrical energy extraction apparatus, each of the insulation sleeves has an annular crimping edge on an outer wall thereof;
each annular protruding part presses the corresponding annular crimping edge onto the outer wall surface of the magnetic fluid flow channel.
According to at least one embodiment of the present application, the above-mentioned device for extracting electrical energy in magnetohydrodynamic technology further includes:
and each insulating gasket is correspondingly sleeved on one electrode and is positioned between the corresponding annular convex part and the corresponding nut.
Drawings
FIG. 1 is a side view of an electrical energy extraction device in magnetohydrodynamic technology provided by an embodiment of the present application;
FIG. 2 is a cross-sectional view taken along line C-C of FIG. 1;
FIG. 3 is a schematic diagram of the configuration of a magnetic fluid flow channel provided by an embodiment of the present application;
FIG. 4 is a schematic diagram of an electrical energy extraction device in the magnetohydrodynamic technology provided by an embodiment of the present application;
wherein:
1-magnetic pole; 2-a magnetic fluid flow-through channel; 3-an electrode; 4-a turbulent flow support plate; 5-a screw cap; 6-an insulating bush; 7-an insulating spacer;
a-an annular cooling chamber;
b-pressure test channel.
For the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; further, the drawings are for illustrative purposes, and terms describing positional relationships are limited to illustrative illustrations only and are not to be construed as limiting the patent.
Detailed Description
In order to make the technical solutions and advantages of the present application clearer, the technical solutions of the present application will be further clearly and completely described in the following detailed description with reference to the accompanying drawings, and it should be understood that the specific embodiments described herein are only some of the embodiments of the present application, and are only used for explaining the present application, but not limiting the present application. It should be noted that, for convenience of description, only the parts related to the present application are shown in the drawings, other related parts may refer to general designs, and the embodiments and technical features in the embodiments in the present application may be combined with each other to obtain a new embodiment without conflict.
In addition, unless otherwise defined, technical or scientific terms used in the description of the present application shall have the ordinary meaning as understood by one of ordinary skill in the art to which the present application belongs. The terms "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", and the like used in the description of the present application, which indicate orientations, are used only to indicate relative directions or positional relationships, and do not imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed accordingly, and thus, should not be construed as limiting the present application. The use of "first," "second," "third," and the like in the description of the present application is for descriptive purposes only to distinguish between different components and is not to be construed as indicating or implying relative importance. The use of the terms "a," "an," or "the" and similar referents in the context of describing the application is not to be construed as an absolute limitation on the number, but rather as the presence of at least one. The word "comprising" or "comprises", and the like, when used in this description, is intended to specify the presence of stated elements or items, but not the exclusion of other elements or items.
Further, it is noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and the like are used in the description of the invention in a generic sense, e.g., connected as either a fixed connection or a removable connection or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, or they may be connected through the inside of two elements, and those skilled in the art can understand their specific meaning in this application according to the specific situation.
The present application is described in further detail below with reference to fig. 1 to 4.
An electric energy extraction device in magnetohydrodynamic technology comprises:
a pair of oppositely disposed magnetic poles 1;
the magnetic fluid circulation channel 2 is arranged in a magnetic field generated by the magnetic pole 1, two opposite electric energy extraction holes are formed in the side wall of the magnetic fluid circulation channel, an annular cooling cavity A is formed in the side wall, and a cooling inlet and a cooling outlet which are communicated with the annular cooling cavity are formed in the outer wall surface of the magnetic fluid circulation channel;
and a pair of electrodes 3, each electrode 2 is correspondingly inserted into one electric energy extraction hole.
For the electric energy extraction device in the magnetohydrodynamic technology disclosed in the above embodiment, as can be understood by those skilled in the art, a mixture of a high-temperature fluid and an easily-ionized metal salt may be introduced into the magnetohydrodynamic flow channel 2 to generate a plasma, and the plasma is deflected under the action of a magnetic field generated by the magnetic pole 1, captured by the two electrodes 3, and led out through the leads of the two electrodes 3, so as to extract electric energy in the magnetohydrodynamic technology, and further detect and test the extracted electric energy, so that the extracted electric energy may be injected into the gas of an aircraft engine, and the application of the magnetohydrodynamic technology in the aircraft engine may be promoted.
For the electric energy extraction device in the magnetohydrodynamics technology disclosed in the above embodiment, those skilled in the art can understand that parameters such as specific shapes, models, sizes, and the like of the magnetic pole 1, the magnetohydrodynamics flow channel 2, and the electrode 3 can be designed and determined by related technical personnel according to specific practice when applying the present application, and no further limitation is made herein.
For the electric energy extraction device in the magnetohydrodynamic technology disclosed in the above embodiment, it can be further understood by those skilled in the art that, when electric energy is extracted in the magnetohydrodynamic technology, a mixture of high-temperature fluid and easily-ionized metal salt introduced into the magnetohydrodynamic flow channel 2 has an extremely high temperature, an annular cooling cavity communicated with a cooling inlet and a cooling outlet on an outer wall surface is designed in the magnetohydrodynamic flow channel 2, and a cooling medium, specifically cooling water, can be introduced into the annular cooling cavity to cool the magnetohydrodynamic flow channel 2, so as to prevent the magnetohydrodynamic flow channel 2 from being damaged by heat.
In some optional embodiments, in the electric energy extraction device in the magnetohydrodynamic technology, the sidewall of the magnetohydrodynamic flow channel 2 is provided with a plurality of pressure test channels B, one end of each pressure test channel B extends to the inner wall surface of the magnetohydrodynamic flow channel 2, and the other end extends to the outer wall surface of the magnetohydrodynamic flow channel 2, and the pressure test device is connected to the pressure test device, so that the pressure in the magnetohydrodynamic flow channel 2 can be detected, the control effect on the fluid in the magnetohydrodynamic flow channel 2 is further obtained, the reduction effect on the fluid flow loss in the magnetohydrodynamic flow channel 2 is obtained, and the research on the application of the magnetohydrodynamic technology in an aero-engine is promoted.
In some optional embodiments, in the above-mentioned device for extracting electrical energy in a magnetohydrodynamic technology, further includes:
and the plurality of turbulence support plates 4 are arranged in the annular cooling cavity A to increase the disturbance to the cooling medium introduced into the annular cooling cavity A and strengthen the cooling effect on the magnetic fluid circulation channel 2.
In some optional embodiments, in the electric energy extraction device in the magnetohydrodynamics technology, each of the spoiler support plates 4 and the magnetohydronic flow channel 2 is an integrally formed structure, and may be manufactured by an additive manufacturing process.
In some optional embodiments, in the above-mentioned device for extracting electric energy in the mhd technology, two electrodes 3 have annular protruding portions;
the electric energy extraction device in the magnetohydrodynamics technology further comprises:
and each nut 5 is correspondingly sleeved on the periphery of one electrode 3 and is in threaded fit connection with the magnetic fluid flow channel 2, and the corresponding annular convex part is tightly pressed on the outer wall surface of the magnetic fluid flow channel 2, so that the reliable installation of the electrode 3 in the electric energy extraction hole is realized.
In some optional embodiments, in the above-mentioned device for extracting electrical energy in a magnetohydrodynamic technology, further includes:
and each insulating bush 6 is correspondingly sleeved on one electrode 3 and is positioned between the corresponding electrode 3 and the electric energy extraction hole.
In some alternative embodiments, in the above-mentioned mhd electric energy extraction apparatus, each insulating bush 6 has an annular crimping edge on the outer wall;
each annular protruding part presses the corresponding annular crimping edge onto the outer wall surface of the magnetic fluid flow channel 2, so that reliable installation of the insulating bush 6 between the electrode 3 and the electric energy extraction hole is guaranteed, and effective insulation is guaranteed to be formed between the electrode 3 and the magnetic fluid flow channel 2.
In some optional embodiments, in the above-mentioned device for extracting electrical energy in a magnetohydrodynamic technology, further includes:
and each insulating gasket 7 is correspondingly sleeved on one electrode 3 and is positioned between the corresponding annular convex part and the nut 5 so as to ensure that effective insulation is formed between the electrode 3 and the nut 5.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
Having thus described the present application in connection with the preferred embodiments illustrated in the accompanying drawings, it will be understood by those skilled in the art that the scope of the present application is not limited to those specific embodiments, and that equivalent modifications or substitutions of related technical features may be made by those skilled in the art without departing from the principle of the present application, and those modifications or substitutions will fall within the scope of the present application.
Claims (8)
1. An electric energy extraction device in magnetohydrodynamic technology is characterized by comprising:
a pair of oppositely arranged magnetic poles (1);
the magnetic fluid circulation channel (2) is arranged in a magnetic field generated by the magnetic pole (1), two opposite electric energy extraction holes are formed in the side wall of the magnetic fluid circulation channel, an annular cooling cavity (A) is formed in the side wall, and the outer wall surface of the magnetic fluid circulation channel is provided with a cooling inlet and a cooling outlet which are communicated with the annular cooling cavity;
and each electrode (2) is correspondingly inserted into one electric energy extraction hole to be arranged.
2. A device for extraction of electrical energy in magnetohydrodynamic techniques according to claim 1,
the side wall of the magnetic fluid flow channel (2) is provided with a plurality of pressure test channels (B), one end of each pressure test channel (B) extends to the inner wall surface of the magnetic fluid flow channel (2), and the other end of each pressure test channel (B) extends to the outer wall surface of the magnetic fluid flow channel (2).
3. A device for extraction of electrical energy in magnetohydrodynamic techniques according to claim 1,
further comprising:
and the plurality of turbulence support plates (4) are arranged in the annular cooling cavity (A).
4. A device for extraction of electrical energy in magnetohydrodynamic techniques according to claim 3,
each turbulence support plate (4) and the magnetic fluid flow channel (2) are of an integrally formed structure.
5. A device for extraction of electrical energy in magnetohydrodynamic techniques according to claim 1,
the two electrodes (3) are provided with annular convex parts;
the electric energy extraction device in the magnetohydrodynamics technology further comprises:
and each nut (5) is correspondingly sleeved on the periphery of one electrode (3) and is in threaded fit connection with the magnetic fluid circulation channel (2), and the corresponding annular convex part is pressed on the outer wall surface of the magnetic fluid circulation channel (2).
6. An extraction device of electrical energy in magnetohydrodynamic technology as claimed in claim 5,
further comprising:
and each insulating bush (6) is correspondingly sleeved on one electrode (3) and is positioned between the corresponding electrode (3) and the electric energy extraction hole.
7. An extraction device of electrical energy in magnetohydrodynamic technology as claimed in claim 6,
the outer wall of each insulation bushing (6) is provided with an annular crimping edge;
and each annular protruding part presses the corresponding annular crimping edge onto the outer wall surface of the magnetic fluid flow channel (2).
8. An extraction device of electrical energy in magnetohydrodynamic technology as claimed in claim 5,
further comprising:
and each insulating gasket (7) is correspondingly sleeved on one electrode (3) and is positioned between the corresponding annular convex part and the corresponding nut (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111288296.8A CN114142710A (en) | 2021-11-02 | 2021-11-02 | Electric energy extraction device in magnetohydrodynamic technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111288296.8A CN114142710A (en) | 2021-11-02 | 2021-11-02 | Electric energy extraction device in magnetohydrodynamic technology |
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| CN114142710A true CN114142710A (en) | 2022-03-04 |
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| CN202111288296.8A Pending CN114142710A (en) | 2021-11-02 | 2021-11-02 | Electric energy extraction device in magnetohydrodynamic technology |
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| CN110855121A (en) * | 2019-12-18 | 2020-02-28 | 西安空天能源动力智能制造研究院有限公司 | Faraday type magnetohydrodynamic electricity generation channel device based on heat sink type |
| CN112153880A (en) * | 2020-10-28 | 2020-12-29 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Double-sided heat exchange micro-channel liquid cooling radiator |
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2021
- 2021-11-02 CN CN202111288296.8A patent/CN114142710A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234894A (en) * | 2013-04-03 | 2013-08-07 | 中国石油大学(华东) | Multiphase flow erosion local corrosion testing apparatus |
| US20160116223A1 (en) * | 2014-10-27 | 2016-04-28 | Fourier Electric, Inc. | Ferrohydrodynamic thermal management system and method |
| CN106972731A (en) * | 2017-05-19 | 2017-07-21 | 北京态金科技有限公司 | Liquid metal electromagnetic pump |
| CN108199560A (en) * | 2017-12-13 | 2018-06-22 | 南京工业大学 | A kind of thermoelectric conversion device for the pulsating heat pipe for charging magnetic liquid |
| CN110411523A (en) * | 2019-07-30 | 2019-11-05 | 麦克传感器股份有限公司西安分公司 | A kind of high-voltage electromagnetic flow meter electrode packaging system |
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| CN112153880A (en) * | 2020-10-28 | 2020-12-29 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Double-sided heat exchange micro-channel liquid cooling radiator |
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