CN116665924B - A passive plate structure for inhibiting plasma vertical instability - Google Patents
A passive plate structure for inhibiting plasma vertical instability Download PDFInfo
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- CN116665924B CN116665924B CN202310709687.5A CN202310709687A CN116665924B CN 116665924 B CN116665924 B CN 116665924B CN 202310709687 A CN202310709687 A CN 202310709687A CN 116665924 B CN116665924 B CN 116665924B
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- 230000002401 inhibitory effect Effects 0.000 title abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052802 copper Inorganic materials 0.000 claims abstract description 24
- 239000010949 copper Substances 0.000 claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 238000000429 assembly Methods 0.000 claims abstract description 9
- 230000000712 assembly Effects 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims description 140
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000002826 coolant Substances 0.000 claims description 6
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 6
- 229910052721 tungsten Inorganic materials 0.000 claims description 6
- 239000010937 tungsten Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000004927 fusion Effects 0.000 abstract description 3
- 210000002381 plasma Anatomy 0.000 description 33
- 239000000498 cooling water Substances 0.000 description 15
- 238000006073 displacement reaction Methods 0.000 description 9
- QZLJNVMRJXHARQ-UHFFFAOYSA-N [Zr].[Cr].[Cu] Chemical compound [Zr].[Cr].[Cu] QZLJNVMRJXHARQ-UHFFFAOYSA-N 0.000 description 5
- 230000004044 response Effects 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21B—FUSION REACTORS
- G21B1/00—Thermonuclear fusion reactors
- G21B1/11—Details
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21B—FUSION REACTORS
- G21B1/00—Thermonuclear fusion reactors
- G21B1/05—Thermonuclear fusion reactors with magnetic or electric plasma confinement
- G21B1/057—Tokamaks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/10—Nuclear fusion reactors
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Plasma Technology (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention belongs to the technical field of fusion devices, and particularly discloses a passive plate structure for inhibiting vertical instability of plasma, which comprises the following components: the device comprises a passive plate assembly, a plurality of electric connection assemblies and a support assembly; the passive plate assembly comprises a plurality of passive plate bodies; the electric connection assembly comprises two first connection plates and two second connection plates; the first connecting plate comprises a first steel layer and a first copper layer; the second connecting plate comprises a second copper layer, a second steel layer and an insulating layer; the first copper layers of the two first connecting plates are contacted with the second copper layer of the second connecting plate; wherein, two adjacent passive plate bodies are connected by an electric connecting component; the first copper layer of the first connecting plate is in direct contact with the second copper layer of the second connecting plate, so that the contact resistance between the passive plate body and the second connecting piece can be reduced, the induced current of the passive plate body is increased, the inhibiting capability on the vertical instability of plasma is improved, the manufacturing difficulty of a rapid power supply is reduced, and the cost is reduced.
Description
Technical Field
The invention relates to the technical field of fusion devices, in particular to a passive plate structure for inhibiting vertical instability of plasma.
Background
At present, most tokamak devices adopt an active feedback system and a passive plate to inhibit the vertical instability of plasma, because the active feedback system is difficult to respond immediately after the plasma is vertically displaced, the vertical displacement growth rate of the plasma is firstly inhibited to be within the time scale of the response of the active feedback system by means of the passive plate. The passive plate is a conductor arranged around the plasma without power applied, and generally refers to a vacuum chamber and a stable conductor provided for suppressing vertical instability of the plasma. The plasma vertical displacement increase rate is one of important indexes reflecting the performance of the passive plate, and the lower the plasma vertical displacement increase rate is, the stronger the inhibition capability of the passive plate to the plasma vertical instability is represented. The performance parameters of the passive plate directly influence the vertical instability of the plasma, and the plasma cracking times caused by the vertical displacement event of the plasma in the current Tokamak experiment device account for about 60% of the total plasma cracking times, so the novel passive plate structure has important significance for the stable operation of future fusion devices and the construction of commercial stacks.
The existing passive plates are mainly divided into two main types, one type is a continuous passive plate, and the other type is a discontinuous passive plate. The continuous passive plate has a stronger suppression capability for vertical instability of plasma, but makes it difficult for plasma to break down, so that most tokamak devices use discontinuous passive plates. The discontinuous passive plates which are applied at present are all connected with the supporting seat by adopting a steel structure so as to connect a plurality of passive plate bodies, the vertical displacement growth rate of the plasmas is restrained to be in the order of hundreds of seconds, however, when the vertical displacement growth rate of the plasmas is in the order of hundreds of seconds, the response time of a rapid power supply is required to be within a few milliseconds, and the requirement on the rapid power supply is still in a higher level, so that the manufacturing difficulty of the rapid power supply is high, and the cost is higher.
Disclosure of Invention
The purpose of the invention is that: the passive plate structure for inhibiting vertical instability of plasma is provided, so that the technical problems of high manufacturing difficulty and high cost of a rapid power supply caused by the fact that the requirement of a tokamak device on the rapid power supply in the prior art is still at a high level are solved.
In order to achieve the above object, the present invention provides a passive plate structure for suppressing vertical instability of plasma, comprising:
the passive plate assembly comprises a plurality of passive plate bodies which are sequentially arranged;
A plurality of electrical connection assemblies including two first connection plates and a second connection plate; the first connecting plate is arranged above the second connecting plate; the first connecting plate comprises a first steel layer and a first copper layer which are sequentially arranged from top to bottom; the second connecting plate comprises a second copper layer, a second steel layer and an insulating layer which are sequentially arranged from top to bottom; the first copper layers of the two first connecting plates are contacted with the second copper layer of the second connecting plate; the two adjacent passive plate bodies are connected through one electric connecting assembly, the first steel layer of one first connecting plate of the electric connecting assembly is connected with one passive plate body, and the first steel layer of the other first connecting plate of the electric connecting assembly is connected with the other passive plate body;
The support component is arranged below the second connecting plate; the support assembly has a support surface in contact with the insulating layer.
Preferably, the upper side surface of the first steel layer is connected with the bottom of the passive plate body.
Preferably, the support assembly comprises a plurality of support bases, the support surface is located on the support bases, and the support bases are located below the first connecting plate.
Preferably, the outer side surface of the passive plate body is provided with a first wall; the first wall comprises a tungsten armor, a heat sink layer and a cooling layer which are sequentially arranged from outside to inside; a cooling channel is arranged in the cooling layer; the heat sink layer is in contact with the cooling channel.
Preferably, the cooling layer comprises a plurality of cooling blocks and a plurality of conversion pipes; the cooling blocks are sequentially arranged along the flow direction of the cooling medium of the cooling channel, and each cooling block is provided with a cooling flow channel; the cooling flow channels of the cooling blocks are communicated sequentially through the switching tube along the flow direction of the cooling medium of the cooling channel so as to form the unidirectional cooling channel.
Preferably, a groove with an S shape is arranged on one side of the cooling block facing the heat sink layer, and the groove with the S shape forms the cooling flow channel with the S shape; the heat sink layer covers the groove; the cooling block is provided with a water inlet at the water inlet end of the cooling flow channel, and the cooling block is provided with a water outlet at the water outlet end of the cooling flow channel.
Preferably, a body runner is arranged in the passive plate body, and an inlet of the body runner is communicated with an outlet of the cooling channel.
Preferably, the body flow passage comprises a first step pipe, a second step pipe, a third step pipe and a fourth step pipe which are communicated in sequence; the first step pipe, the second step pipe, the third step pipe, the fourth step pipe is arranged in proper order along deviating from the direction of first wall, the first step pipe is located between the second step pipe and the cooling layer, the first step pipe with cooling channel's export intercommunication.
Preferably, the method further comprises: a cooling inlet pipe and a cooling outlet pipe;
The cooling inlet pipe is communicated with the inlet of the cooling channel, and the cooling outlet pipe is communicated with the outlet of the body flow channel.
Preferably, a plurality of the passive plate bodies of the passive plate assembly are connected through a plurality of the electric connection assemblies to form a passive plate ring; the outer ring of the passive plate ring is provided with a plurality of outer ring supporting seats, and the outer ring supporting seats are connected with the passive plate body.
The passive plate structure for inhibiting the vertical instability of the plasma has the beneficial effects that: the supporting surface of the supporting component and the second connecting plate isolate current through the insulating layer so as to prevent induced current of the passive plate ring from flowing into the vacuum chamber of the tokamak device through the supporting component. The first copper layer of the first connecting plate is in direct contact with the second copper layer of the second connecting plate to replace the connection mode of the steel structure and the supporting seat in the prior art, so that the contact resistance between the passive plate bodies and the second connecting piece can be reduced, the resistance between the two passive plate bodies is reduced, the induced current of the passive plate bodies is increased, the inhibiting capability on the vertical instability of plasma is improved, the vertical displacement growth rate of the plasma is reduced, the response time range of a required quick power supply is increased, the performance requirements of the Tokamak device on the parameters and the like of the quick power supply are reduced, the manufacturing difficulty of the quick power supply is reduced, the cost is reduced, and the development economy of the Tokamak device is further improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic structural view of a passive plate structure for suppressing vertical instability of plasma according to an embodiment of the present invention;
FIG. 2 is a schematic three-dimensional structure of a passive board body and an electrical connection assembly according to an embodiment of the present invention;
FIG. 3 is a schematic view of a structure of a passive board body and an electrical connection assembly according to another embodiment of the present invention;
FIG. 4 is an enlarged schematic view of the structure shown at A in FIG. 3;
FIG. 5 is a schematic view of the structure of the first wall of the passive plate body according to the embodiment of the invention;
fig. 6 is a schematic structural diagram of the first wall of the passive board body according to the embodiment of the invention after removing the heat sink layer;
FIG. 7 is a schematic diagram of a distribution structure of body flow channels of a passive plate body according to an embodiment of the present invention;
FIG. 8 is a schematic view of the structure of the side of the passive plate body facing away from the first wall according to an embodiment of the present invention;
Fig. 9 is a schematic structural diagram of the flow direction of cooling water in the cooling channel and the body flow channel according to the embodiment of the present invention.
In the figure, 100, a passive plate assembly; 110. a passive plate body; 120. a first wall; 121. tungsten armor; 122. a heat sink layer; 123. a cooling layer; 1231. a cooling channel; 1232. a cooling block; 1233. a switching tube; 1234. a cooling flow passage; 1235. a drainage strip; 130. a body flow passage; 131. a first step pipe; 132. a second step pipe; 133. a third step pipe; 134. a fourth step pipe; 200. an electrical connection assembly; 210. a first connection plate; 211. a first steel layer; 212. a first copper layer; 220. a second connecting plate; 221. a second copper layer; 222. a second steel layer; 223. an insulating layer; 300. a support assembly; 310. a support surface; 320. a support base; 330. an outer ring support base; 400. a cooling inlet pipe; 500. cooling the outlet tube.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Referring to fig. 1 to 9 together, a passive plate structure for suppressing vertical instability of plasma according to an embodiment of the present invention will now be described.
Referring to fig. 1 to 5, a passive plate structure for suppressing vertical instability of plasma according to an embodiment of the present invention includes: a passive plate assembly 100, a plurality of electrical connection assemblies 200, and a support assembly 300.
The passive plate assembly 100 includes a plurality of passive plate bodies 110 disposed in sequence;
The electrical connection assembly 200 includes two first connection plates 210 and a second connection plate 220; the first connection plate 210 is disposed above the second connection plate 220; the first connection plate 210 includes a first steel layer 211 and a first copper layer 212 sequentially disposed from top to bottom; the second connection plate 220 includes a second copper layer 221, a second steel layer 222, and an insulating layer 223 sequentially disposed from top to bottom; the first copper layers 212 of both first connection plates 210 are in contact with the second copper layer 221 of the second connection plate 220; wherein, two adjacent passive board bodies 110 are connected through one electric connection assembly 200, the first steel layer 211 of one first connection board 210 of the electric connection assembly 200 is connected with one passive board body 110, and the first steel layer 211 of the other first connection board 210 of the electric connection assembly 200 is connected with the other passive board body 110; the insulating layer 223 may be made of an alumina material.
The support assembly 300 is disposed under the second connection plate 220; the support assembly 300 has a support surface 310 in contact with the insulating layer 223.
The passive plate assembly 100 has a plurality of passive plate bodies 110 for being wound into a passive plate ring, in this embodiment, sixteen passive plate bodies 110 are sequentially arranged, and are connected end to end through a plurality of electrical connection assemblies 200 so as to surround the annular passive plate ring, and are arranged in a vacuum chamber (not shown) of the tokamak device in a ring, and two adjacent passive plate bodies 110 are electrically connected through the electrical connection assemblies 200 so that the two passive plate bodies 110 can be conducted; when the plasma of the Tokamak device is in vertical instability, the passive plate ring can generate strong induced current, the magnitude of current density can reach MA/square meter, the induced current can generate a constraint magnetic field to inhibit the vertical instability of the plasma, and the vertical displacement growth rate of the plasma is reduced, so that time is strived for the response of the active feedback system.
The second connection plate 220 of the electrical connection assembly 200 is in a flat plate shape, and upper sides of both ends of the second connection plate 220 are in contact with the first connection plate 210 to form a circuit bridge of two adjacent passive plate bodies 110. An electrical connection assembly 200 is disposed between two adjacent passive board bodies 110, wherein one first connection board 210 of the electrical connection assembly 200 is connected with one of the two adjacent passive board bodies 110, and the other first connection board 210 is connected with the other of the two adjacent passive board bodies 110, so that the circuit conduction of the two adjacent passive board bodies 110 is realized. Similarly, sixteen passive plate bodies 110 are electrically connected by the above electrical connection assembly 200 to form a passive plate ring through which current can pass.
Referring to fig. 3 to 5, the supporting assembly 300 is disposed below the second connecting plate 220, and the supporting assembly 300 supports the passive plate body 110 through the second connecting plate 220 and the first connecting plate 210 to fix the passive plate body 110, so as to prevent the passive plate body 110 from being displaced during use. The working environment of the passive plate assembly 100 is very complex, being a complex environment with multiple physical field coupling. The passive plate assembly 100 is in a strong magnetic field environment, so when an induced current is generated on the passive plate ring, the passive plate ring is subjected to electromagnetic force, so the support assembly 300 is required to restrain the passive plate ring, and the passive plate ring is prevented from being deflected under the electromagnetic force. The support assembly 300 has a plurality of support bases 320 and a plurality of outer ring support bases 330, and one support base 320 is provided under each first connection plate 210 for supporting the bottoms of the first connection plate 210, the second connection plate 220 and the passive plate body 110. The support surface 310 is located on a support base 320, and the support base 320 is located below the first connection plate 210. Since each of the passive plate bodies 110 needs to be electrically connected to two passive plate bodies 110 on the left and right sides of itself, each of the passive plate bodies 110 needs two support bases 320 to support the bottom. The outer ring support base 330 is disposed on the outer ring of the passive plate ring, and the outer ring support base 330 is connected to the outer side of the passive plate body 110, so as to fix the passive plate body 110. The passive plate body 110 can be fixed by the outer ring support base 330 and the support base 320 to prevent the passive plate ring from being deviated under the action of electromagnetic force.
The supporting surface 310 of the supporting component 300 and the second connecting plate 220 are isolated from current through the insulating layer 223 to prevent the induced current of the passive plate ring from flowing into the vacuum chamber of the tokamak device through the supporting component 300. The first copper layer 212 of the first connection plate 210 is directly contacted with the second copper layer 221 of the second connection plate 220, so as to replace the connection mode of a steel structure and a supporting seat in the prior art, so that the contact resistance between the passive plate body 110 and the second connection piece can be reduced, the resistance between the two passive plate bodies 110 is reduced, the induced current of the passive plate body 110 is increased, the inhibiting capability on the vertical instability of plasma is improved, the vertical displacement growth rate of the plasma is reduced, the required response time range of a rapid power supply is increased, the performance requirements of the tokamak device on parameters and the like of the rapid power supply are reduced, the manufacturing difficulty of the rapid power supply is reduced, the cost is reduced, and the economy of developing the tokamak device is further improved.
Referring to fig. 3 to 5, in order to better make the support base 320 support the passive plate body 110, the upper side of the first steel layer 211 is connected with the bottom of the passive plate body 110. That is, the passive plate body 110, the first connecting plate 210, the second connecting plate 220 and the supporting base 320 are sequentially arranged from top to bottom, so that the supporting base 320 better supports the passive plate base and has a better stress mode. The passive plate body 110 may also be fixed to the support base 320 by a bolt assembly for fixing.
Referring to fig. 3 to 5, in order to facilitate the operation of the passive plate assembly 100 in a high power, long pulse environment, the outer side surface of the passive plate body 110 is provided with a first wall 120; the first wall 120 comprises a tungsten armor 121, a heat sink layer 122 and a cooling layer 123 which are sequentially arranged from outside to inside; cooling channels 1231 are provided in the cooling layer 123; the heat sink layer 122 is in contact with the cooling channels 1231. The first wall 120 is located at the inner ring of the passive plate ring for withstanding steady state heat flow. The heat sink layer 122 is made of a chromium-zirconium copper plate, and a plurality of tungsten blocks are paved on the outer side of the chromium-zirconium copper plate so as to form tungsten armor 121. The cooling layer 123 may be made of stainless steel, and a cooling channel 1231 is formed in the cooling layer 123, and the cooling channel 1231 is used for introducing cooling water to take away heat of the heat sink layer 122 contacting with the cooling channel 1231, thereby cooling the entire first wall 120 and reducing the temperature of the first wall 120, so that the passive plate assembly 100 can operate in a high-power and long-pulse environment.
On the basis of the above, referring to fig. 6 to 9, the cooling layer 123 includes a plurality of cooling blocks 1232, a plurality of conversion pipes 1233; the plurality of cooling blocks 1232 are sequentially arranged along the flow direction of the cooling medium of the cooling passage 1231, and each cooling block 1232 is provided with a cooling flow passage 1234; the cooling flow channels 1234 of the plurality of cooling blocks 1232 are sequentially communicated through the switching pipe 1233 in the flow direction of the cooling medium of the cooling passage 1231 to form a unidirectional cooling passage 1231. The cooling block 1232 is a stainless steel block provided with a cooling flow channel 1234, and a plurality of stainless steel blocks are sequentially arranged along the flow direction of the cooling water, and the cooling flow channel 1234 in the stainless steel block is also sequentially arranged along the flow direction of the cooling water. In the present embodiment, the cooling layer 123 of each passive plate body 110 has four cooling blocks 1232, and the four cooling blocks 1232 are sequentially arranged and divided into a first block, a second block, a third block, and a fourth block; the inlet of the cooling flow channel 1234 of the first cooling block 1232 is the inlet of the cooling channel 1231, the outlet of the cooling flow channel 1234 of the first cooling block 1232 is communicated with the inlet of the cooling flow channel 1234 of the second cooling block 1232 through the switching pipe 1233, the outlet of the cooling flow channel 1234 of the second cooling block 1232 is communicated with the inlet of the cooling flow channel 1234 of the third cooling block 1232 through the switching pipe 1233, the outlet of the cooling flow channel 1234 of the third cooling block 1232 is communicated with the inlet of the cooling flow channel 1234 of the fourth cooling block 1232 through the switching pipe 1233, and the cooling flow channel 1234 of the fourth cooling block 1232 is the outlet of the cooling channel 1231 to form a unidirectional cooling channel 1231, which facilitates cooling water to cool the heat sink layer 122 through the cooling channel 1231 to cool the whole first wall 120.
On the basis of the above, referring to fig. 6 to 9, each cooling block 1232 is provided with an S-shaped groove on a side facing the heat sink layer 122, the S-shaped groove forming an S-shaped cooling flow channel 1234; specifically, a square groove can be formed in the cooling block 1232, and then two drainage bars 1235 are arranged in the square groove to form an S-shaped groove; the heat sink layer 122 covers the grooves, that is, the heat sink layer 122 can be formed by four chromium-zirconium copper plates, each chromium-zirconium copper plate is respectively paved on the drainage strips 1235 of each cooling block 1232, so that cooling water can be ensured to better flow through the heat sink layer 122, the cooling water can better exchange heat with the heat sink layer 122, and the cooling effect of the first wall 120 is improved. Wherein, the cooling block 1232 is provided with a water inlet at the water inlet end of the cooling flow channel 1234, and the cooling block 1232 is provided with a water outlet at the water outlet end of the cooling flow channel 1234. That is, the inlet of the cooling flow channel 1234 of the cooling block 1232 is a water inlet, and the outlet of the cooling flow channel 1234 of the cooling block 1232 is a water outlet.
Referring to fig. 6 to 9, since the passive plate body 110 is also located in a high temperature environment, the passive plate body 110 is also required to be cooled, and the body flow channel 130 is disposed in the passive plate body 110, the inlet of the body flow channel 130 is communicated with the outlet of the cooling channel 1231, that is, the cooling water flowing through the cooling channel 1231 also passes through the body flow channel 130 to cool the whole passive plate body 110, so as to take away the heat of the passive plate body 110. The outer side of the passive plate body 110 is inclined, and in order to cool the passive plate body 110 better, the body flow channel 130 comprises a first step pipe 131, a second step pipe 132, a third step pipe 133 and a fourth step pipe 134 which are communicated in sequence; the first stepped pipe 131, the second stepped pipe 132, the third stepped pipe 133, and the fourth stepped pipe 134 are sequentially arranged in a direction away from the first wall 120, and the first stepped pipe 131 is located between the second stepped pipe 132 and the cooling layer 123. The first stepped pipe 131 communicates with an outlet of the cooling passage 1231. I.e., the body flow channel 130 has a stepped structure to be better laid in the passive plate body 110. The first step pipe 131, the second step pipe 132, the third step pipe 133 and the fourth step pipe 134 are sequentially arranged, so that the first step pipe 131, the second step pipe 132, the third step pipe 133 and the fourth step pipe 134 can exchange heat with different positions of the passive plate body 110 respectively, and the passive plate body 110 can be cooled better. The body flow channel 130 is a unidirectional channel, and the cooling water needs to flow through the first step pipe 131, the second step pipe 132, the third step pipe 133 and the fourth step pipe 134 in sequence, so as to be sent out from the outlet of the body flow channel 130.
Referring to fig. 8 to 9, the passive plate structure for suppressing vertical instability of plasma further includes: a cooling inlet pipe 400 and a cooling outlet pipe 500; the cooling inlet pipe 400 communicates with an inlet of the cooling passage 1231, and the cooling outlet pipe 500 communicates with an outlet of the body flow passage 130. The cooling inlet pipe 400 and the cooling outlet pipe 500 are both made of chromium zirconium copper water pipes, the cooling inlet pipe 400 is used for communicating with the inlet of the cooling channel 1231 so as to input cooling water into the cooling channel 1231, the cooling outlet pipe 500 is used for communicating with the outlet of the body flow passage 130 so as to send the cooling water back to the recovery tank of the cooling water, and heat is released so as to enter the next cooling cycle. In summary, the cooling water first enters the cooling channel 1231 to cool the first wall 120 sufficiently (the solid arrows indicate the flowing direction of the cooling water in the cooling channel 1231, and the dotted arrows indicate the flowing direction of the cooling water in the body flow channel 130), and then the body flow channel 130 cools the rest of the passive plate body 110, so that the whole passive plate body 110 can be cooled, the passive plate body 110 is prevented from being damaged by high temperature, and the resistance of the passive plate body 110 can be reduced, thereby increasing the induced current generated by the passive plate body and increasing the suppression capability of the vertical instability of the plasma.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and these modifications and substitutions should also be considered as being within the scope of the present invention.
Claims (9)
1. A passive plate structure for suppressing vertical instability of a plasma, comprising:
the passive plate assembly comprises a plurality of passive plate bodies which are sequentially arranged;
A plurality of electrical connection assemblies including two first connection plates and a second connection plate; the first connecting plate is arranged above the second connecting plate; the first connecting plate comprises a first steel layer and a first copper layer which are sequentially arranged from top to bottom; the second connecting plate comprises a second copper layer, a second steel layer and an insulating layer which are sequentially arranged from top to bottom; the first copper layers of the two first connecting plates are contacted with the second copper layer of the second connecting plate; the two adjacent passive plate bodies are connected through one electric connecting assembly, the first steel layer of one first connecting plate of the electric connecting assembly is connected with one passive plate body, and the first steel layer of the other first connecting plate of the electric connecting assembly is connected with the other passive plate body;
the support component is arranged below the second connecting plate; the support assembly has a support surface in contact with the insulating layer;
the upper side surface of the first steel layer is connected with the bottom of the passive plate body.
2. A passive plate structure for suppressing vertical instability of a plasma according to claim 1, wherein,
The support assembly comprises a plurality of support bases, the support surface is located on the support bases, and the support bases are located below the first connecting plate.
3. A passive plate structure for suppressing vertical instability of a plasma according to claim 1, wherein,
The outer side surface of the passive plate body is provided with a first wall; the first wall comprises a tungsten armor, a heat sink layer and a cooling layer which are sequentially arranged from outside to inside; a cooling channel is arranged in the cooling layer; the heat sink layer is in contact with the cooling channel.
4. A passive plate structure for suppressing vertical instability of a plasma according to claim 3, wherein,
The cooling layer comprises a plurality of cooling blocks and a plurality of conversion pipes; the cooling blocks are sequentially arranged along the flow direction of the cooling medium of the cooling channel, and each cooling block is provided with a cooling flow channel; the cooling flow channels of the cooling blocks are communicated sequentially through the switching tube along the flow direction of the cooling medium of the cooling channel so as to form the unidirectional cooling channel.
5. The passive plate structure for suppressing vertical instability of a plasma according to claim 4, wherein,
An S-shaped groove is formed in one side, facing the heat sink layer, of the cooling block, and the S-shaped groove forms an S-shaped cooling flow channel; the heat sink layer covers the groove; the cooling block is provided with a water inlet at the water inlet end of the cooling flow channel, and the cooling block is provided with a water outlet at the water outlet end of the cooling flow channel.
6. The passive plate structure for suppressing vertical instability of a plasma according to claim 4, wherein,
The passive plate body is internally provided with a body flow passage, and an inlet of the body flow passage is communicated with an outlet of the cooling passage.
7. The passive plate structure for suppressing vertical instability of a plasma according to claim 6, wherein,
The body flow passage comprises a first step pipe, a second step pipe, a third step pipe and a fourth step pipe which are sequentially communicated; the first step pipe, the second step pipe, the third step pipe, the fourth step pipe is arranged in proper order along deviating from the direction of first wall, the first step pipe is located between the second step pipe and the cooling layer, the first step pipe with cooling channel's export intercommunication.
8. The passive plate structure for suppressing vertical instability of a plasma according to claim 6, further comprising: a cooling inlet pipe and a cooling outlet pipe;
The cooling inlet pipe is communicated with the inlet of the cooling channel, and the cooling outlet pipe is communicated with the outlet of the body flow channel.
9. A passive plate structure for suppressing vertical instability of a plasma according to claim 1, wherein,
The passive plate bodies of the passive plate assemblies are connected through the electric connection assemblies to form a passive plate ring; the outer ring of the passive plate ring is provided with a plurality of outer ring supporting seats, and the outer ring supporting seats are connected with the passive plate body.
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