CN113097668A - C-waveband hundred-kilowatt-level stable high-power water-cooling microwave switcher - Google Patents
C-waveband hundred-kilowatt-level stable high-power water-cooling microwave switcher Download PDFInfo
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- CN113097668A CN113097668A CN202110379665.8A CN202110379665A CN113097668A CN 113097668 A CN113097668 A CN 113097668A CN 202110379665 A CN202110379665 A CN 202110379665A CN 113097668 A CN113097668 A CN 113097668A
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- 238000001816 cooling Methods 0.000 title claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 60
- 238000007789 sealing Methods 0.000 claims abstract description 34
- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 230000005855 radiation Effects 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 11
- 230000001960 triggered effect Effects 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims description 2
- 238000002474 experimental method Methods 0.000 abstract description 10
- 230000004927 fusion Effects 0.000 abstract description 10
- 239000000498 cooling water Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/10—Auxiliary devices for switching or interrupting
- H01P1/12—Auxiliary devices for switching or interrupting by mechanical chopper
- H01P1/122—Waveguide switches
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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
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
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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
Abstract
The invention discloses a C-waveband hundred-kilowatt-level stable high-power water-cooling microwave switcher, which comprises: the device comprises a cavity unit, a microwave slider unit, a remote control unit, a dynamic sealing water cooling unit and three external straight waveguides. The microwave cavity is sealed by rubber to keep 1-3bar pressure in the system. The microwave slider unit is positioned in the cavity and comprises a straight waveguide and an H-surface reversing waveguide, and the switching between the straight waveguide and the H-surface reversing waveguide in the microwave slider unit is realized through the control of the remote control unit. The dynamic sealing water-cooling unit is used for removing heat generated in the high-power long-pulse operation and comprises a water inlet, a water outlet, a water pipe and a corrugated pipe. The external straight waveguides in three directions are respectively connected with the two microwave sources and the microwave transmission channel. The invention is used for the first time in a low-clutter system of nuclear fusion, and under the condition of being far away from nuclear radiation, the fault klystron microwave source is switched to the standby klystron microwave source within 2s, so that the effective switching function of the fault klystron and the standby klystron is realized, the flexibility of the system is greatly improved, and the efficient and continuous operation of a controlled nuclear fusion experiment is ensured.
Description
Technical Field
The invention relates to the technical field of high-power microwaves in the field of nuclear fusion research, in particular to a C-band hundred-kilowatt-level steady-state high-power water-cooled microwave switcher.
Background
The low-clutter heating and current driving are important auxiliary heating and current driving modes in a magnetic confinement nuclear fusion experiment, and the klystron is an important component of a low-clutter system and has the function of generating high-power microwave energy. The microwave source of the klystron belongs to a product under study, runs for a long time and is easy to generate faults. In the prior art, the problem of klystron failure is faced by a low-clutter system, the standby klystron is installed after the failed klystron is disassembled, the disassembly and the assembly are long in time consumption, the whole low-clutter system is forced to quit an experiment in the disassembly and the assembly process, a nuclear fusion experiment is also forced to be stopped, and the experiment process and the efficiency are seriously influenced.
Disclosure of Invention
The invention aims to make up the defects of the prior art, and provides a C-band hundred-kilowatt-level steady-state high-power water-cooling microwave switcher, which can switch a transmission link corresponding to a fault klystron to a standby klystron within 2 seconds in a neutron radiation environment, greatly improves the flexibility of a system, and ensures efficient and continuous operation of a controlled nuclear fusion experiment. The invention can also be applied to various high-power microwave systems, such as microwave communication and electronic countermeasure systems, and can also be applied to the field of scientific experimental research of high-power microwaves.
The invention is realized by the following technical scheme: a C-band hundred-kilowatt-level steady-state high-power water-cooling microwave switcher comprises: the microwave water-cooling device comprises a cavity unit, a microwave slider unit, a remote control unit, a dynamic sealing water-cooling unit and three external straight waveguides;
the microwave cavity in the cavity unit keeps 1-3bar air pressure in the system through rubber sealing, and the microwave sliding block unit is positioned in the cavity unit; the outer side of the cavity unit is connected with the three external straight waveguides which are respectively connected with two klystrons microwave sources and a microwave transmission link;
the microwave slider unit is provided with a straight waveguide and an H-face reversing waveguide, and the remote control unit is arranged on the upper side of the cavity unit and connected with the microwave slider unit and used for controlling the microwave slider unit to move up and down in the cavity unit, so that the switching between the straight waveguide and the H-face reversing waveguide in the microwave slider unit is realized in a region far away from the radiation region; water cooling grooves are arranged above and below the straight waveguide of the microwave slider unit, and the corner of the chamfer of the H-surface reversing waveguide is provided with the water cooling grooves and is connected to the dynamic sealing water cooling unit;
the dynamic sealing water cooling unit comprises a water inlet and a water outlet, a water pipe and a corrugated pipe and is used for removing heat generated in high-power steady-state operation.
Further, the cavity unit comprises a hollow cavity, an upper cover plate and a lower cover plate; three side surfaces of the hollow cavity are respectively provided with an assembly flange which is used for being communicated with the klystron and the microwave transmission link; the air sealing between the hollow cavity and the upper cover plate and the air sealing between the hollow cavity and the lower cover plate are realized through the sealing rings, and the air sealing between the three external straight waveguides and the cavity unit is realized through the end face sealing rings.
Furthermore, when the microwave sliding block unit is in a normal working state, the straight waveguide in the microwave sliding block unit is directly communicated with the klystron microwave source and the microwave transmission link; once the klystron of this way breaks down, remote control unit control microwave slider unit removes in cavity unit for the input of H face switching-over waveguide is connected with reserve klystron microwave source, and the output links to each other with the microwave transmission link, realizes the effective switching function of trouble klystron and reserve klystron, and straight waveguide upper and lower and H face corner cut are bent and are provided with the water-cooling tank respectively, are used for removing the heat that produces when high power operation.
Furthermore, the dynamic sealing water cooling unit is used for removing heat generated in a high-power steady state and comprises a water inlet, a water outlet, a water pipe and a corrugated pipe; the displacement generated in the process of the sliding block rising or falling is absorbed by the expansion of the corrugated pipe, and the corrugated pipe, the top of the cavity and the water inlet and outlet are sealed by rubber, so that the pressure of 5bar in the water flow channel can be kept in the moving process, and the dynamic sealing is realized.
Furthermore, a temperature detector, a pressure monitor and a flow sensor are arranged on the water-cooling pipeline to monitor the temperature, the pressure and the flow respectively, and the external straight waveguides and the H-surface chamfer water-bending channel are in butt joint with the water pipe through the ferrule connectors.
Furthermore, the cavity unit, the microwave slider unit and the three external straight waveguides are made of aluminum materials, and the dynamic sealing water cooling unit is made of stainless steel materials.
Furthermore, the microwave slider unit is limited by position switches of the upper cover plate and the lower cover plate of the cavity in the sliding process, so that the microwave slider unit is externally connected with the straight waveguide in a butt joint mode.
Furthermore, a connecting block is designed above the H-face reversing waveguide, and the connecting block and the remote control unit are assembled together through screws.
Further, the remote control unit comprises a two-position five-way electromagnetic valve, a first corrugated pipe, an upper position switch, a lower position switch, an air cylinder and an electromagnetic valve supporting base; the electromagnetic valve is provided with an air inlet hole, two air outlet holes and two air outlet holes, receives a signal instruction and controls the direction of air flow; the air inlet is connected with an air source, one air outlet is connected with the upper air inlet and outlet hole of the air cylinder, and the other air outlet is connected with the lower air inlet and outlet hole of the air cylinder; when air is fed from the lower part of the air cylinder, the air cylinder drives the microwave sliding block unit to move upwards, the corrugated pipe is contracted, and the microwave sliding block unit moves to the upper limiting cover plate position at the top of the cavity, the straight waveguide of the microwave sliding block unit is positioned in the microwave transmission channel, and the upper position switch is triggered and sends a position signal to determine the position of the microwave sliding block unit at the moment; when air is fed into the air cylinder, the air cylinder drives the microwave sliding block unit to move downwards, the first corrugated pipe extends, the microwave sliding block unit moves to the position of the lower limiting cover plate at the bottom of the cavity, the H-face reversing waveguide of the microwave sliding block unit is located in the microwave transmission channel, the lower position switch is triggered to send out a position signal, the position of the microwave sliding block unit is determined at the moment, and the air cylinder is fixed on the cover plate.
Has the advantages that:
compared with the prior art, the microwave switcher has the advantages that the existing low-clutter system has the problem of klystron failure, the standby klystron is installed after the failed klystron is disassembled, time is consumed, in the disassembling and assembling process, the whole low-clutter system is forced to quit the experiment, the nuclear fusion experiment is forced to be stopped, and the experiment progress and efficiency are seriously influenced. The invention is used in a nuclear fusion low-clutter system, realizes the function of fast cutting between a fault klystron microwave source and a standby klystron microwave source, particularly under the condition of future fusion reactor reaction, neutron radiation exists, and the manual disassembly of the klystrons in the radiation environment causes serious damage to human health.
Drawings
FIG. 1 is an overall external view of the present invention;
FIG. 2 is a schematic view of a chamber unit of the present invention;
FIG. 3 is a schematic view of a microwave slider unit of the present invention;
FIG. 4 is a schematic view of a remote control unit of the present invention;
FIG. 5 is a schematic view of a dynamic seal water cooling unit of the present invention;
FIG. 6 is a water flow direction diagram inside the straight waveguide water cooling structure of the present invention;
FIG. 7 is a schematic view of three circumscribed straight waveguides of the present invention.
Wherein: the device comprises a cavity unit 1, a microwave slider unit 2, a remote control unit 3, a dynamic sealing water cooling unit 4, an external straight waveguide 5, a cavity wall 6, an upper cover plate 7, a lower cover plate 8, a sealing groove 9, a knife edge flange seal 10, a hollow cavity 11, an assembly screw hole 12, a screw hole 13, a straight waveguide 14, an H-face reversing waveguide 15, a connecting block 16, a water cooling structure 17, a two-position five-way electromagnetic valve 18, a first corrugated pipe 19, an upper position switch 20, a lower position switch 21, an air cylinder 22, an electromagnetic valve supporting base 23, a slider water cooling pipe 24, a first water pipe 25, a cooling water tank 26, a second water pipe 27, a second corrugated pipe 28, a third corrugated pipe 29, a water inlet 30, a water outlet 31, a third water pipe 32, a first external straight waveguide 33, a second external straight waveguide 34, a third external straight waveguide 35 and a flange.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person skilled in the art based on the embodiments of the present invention belong to the protection scope of the present invention without creative efforts.
According to an embodiment of the present invention, referring to fig. 1-3, a C-band hundreds kilowatt-level steady-state high-power water-cooled microwave switch according to the present invention comprises:
the microwave sliding block unit 2 is positioned in the cavity unit 1, the microwave sliding block unit 2 comprises a straight waveguide 14 and an H-face reversing waveguide 15, the remote control unit 3 is positioned above the cavity unit 1, the dynamic sealing water-cooling unit 4 is used for cooling the microwave sliding block unit, and the three external straight waveguides 5 are fixed on the side face of the microwave cavity through screw holes 13 and are used for connecting the microwave switcher with a klystron microwave source and a transmission link;
referring to fig. 1-2, the chamber unit 1 includes a hollow chamber 11, an upper cover plate 7, a lower cover plate 8, and a chamber wall 6. And three side surfaces of the hollow cavity are provided with assembling screw holes 13 for assembling three external straight waveguides 5. The air sealing is realized between the hollow cavity 11 and the upper cover plate and between the hollow cavity and the lower cover plate through the sealing groove 9 and the knife edge flange seal 10 and through the assembly screw hole 12, and the air sealing is realized between the three external straight waveguides 5 and the cavity unit 1 through the end face rubber sealing ring.
Referring to fig. 1-3, a straight waveguide 14 in a microwave slider unit 2 is located below the microwave slider unit, an H-plane reverse waveguide 15 is located above the straight waveguide 14, a connecting block 16 is designed above the H-plane reverse waveguide 15, and the connecting block 16 and a remote control unit 3 are assembled together through screws; the upper part and the lower part of the straight waveguide 14 are respectively provided with a water cooling groove, and the lower water cooling structure 17 of the straight waveguide 14 is assembled with the lower cover plate 8 of the cavity unit.
Referring to fig. 1 to 5, the remote control unit 3 includes a two-position five-way solenoid valve 18, a first bellows 19, an upper position switch 20, a lower position switch 21, a cylinder 22, a solenoid valve support base 23; the solenoid valve 18 has an air inlet, two air outlets and two air outlets, and receives signal commands to control the direction of the air flow. The air inlet is connected with an air source, one air outlet is connected with an upper air inlet and outlet hole of the air cylinder 22, and the other air outlet is connected with a lower air inlet and outlet hole of the air cylinder 22. When air is fed from the lower part of the air cylinder 22, the air cylinder 22 drives the microwave slider unit 2 to move upwards, the first corrugated pipe 19 contracts, and the microwave slider unit 2 moves to the upper limiting cover plate 7 at the top of the cavity, the straight waveguide 14 of the microwave slider unit 2 is positioned in the microwave transmission channel, the upper position switch 20 is triggered and sends out a position signal, and the position of the microwave slider unit 2 at the moment is determined. When air is fed into the air cylinder 22, the air cylinder 22 drives the microwave slider unit 2 to move downwards, the first corrugated pipe 19 extends, and the microwave slider unit 2 runs to the position of the lower limiting lower cover plate 8 at the bottom of the cavity, the H-surface reversing waveguide 15 of the microwave slider unit 2 is positioned in the microwave transmission channel, the lower position switch 21 is triggered to send out a position signal, and the position of the microwave slider unit 2 at the moment is determined. The cylinder is fixed on the cover plate 7.
Referring to fig. 1, 3 and 5, in the dynamically sealed water cooling unit, cooling water enters a third water pipe 32 assembled in a second corrugated pipe 28 from a water inlet 30, flows into a slider water cooling pipe 24, then enters a cooling water tank 26 of a straight waveguide 14 and a cooling water tank of an H-face reverse waveguide 15, the straight waveguide 14 and the H-face reverse waveguide 15 are connected in series through a second water pipe 27, and the water flow direction inside the cooling water tank 26 inside the straight waveguide 14 is referred to fig. 6. The cooling water flows out of the first water pipe 25, enters the external cooling system, is cooled, and then enters the microwave switcher again. The displacement of the water pipe in the ascending or descending process of the microwave slider unit 2 is absorbed by the second corrugated pipe 28 and the third corrugated pipe 29, and the corrugated pipes, the top of the cavity and the water inlet and outlet are sealed by rubber, so that 5 kg of pressure in the water flow channel can be kept in the moving process, and the dynamic sealing function is realized. And a temperature detector, a pressure monitor and a flow sensor are arranged on the water cooling pipeline and used for respectively monitoring temperature, pressure and flow. The straight waveguide and the H-face chamfer water bending groove are in butt joint with the water pipe through the clamping sleeve joint.
Referring to fig. 7, three external straight waveguides, a first external straight waveguide 33 and a second external straight waveguide 34 are connected to the microwave source, and a third external straight waveguide 35 is connected to the microwave transmission link. Flanges 36 are welded on the straight waveguides, the flanges 36 are flat flanges and are made of stainless steel, and oxygen-free copper flange gaskets are assembled, fastened and sealed between the two flanges through screws.
The working principle of the invention is as follows: the klystron microwave source is connected to the cavity unit 1 through the first external straight waveguide 33, the standby microwave source is connected to the cavity unit 1 through the second external straight waveguide 34, when the klystron microwave source breaks down, the microwave slider unit 2 is controlled by the remote control unit 3 to ascend or descend in the cavity unit 1, the switching function between the second external straight waveguide 34 and the H-face reversing waveguide 15 in the microwave slider unit 2 is achieved, therefore, the microwave power of different microwave sources is transmitted to a microwave transmission link through the second external straight waveguide 34 or the H-face reversing waveguide 15 in the microwave slider unit 2, a controller completes the switching function in a control room far away from neutron radiation, the flexibility of the system is greatly improved, and efficient and continuous operation of controlled nuclear fusion experiments is guaranteed.
Although the foregoing description of the embodiments of the present invention has been described in order to facilitate the understanding of the present invention by those skilled in the art, it should be understood that the present invention is not limited to the scope of the embodiments, but rather, it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined by the appended claims, and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (9)
1. The utility model provides a C wave band hundred kilowatts level steady state high power water-cooling microwave switch which characterized in that: the microwave water-cooling device comprises a cavity unit, a microwave slider unit, a remote control unit, a dynamic sealing water-cooling unit and three external straight waveguides;
the microwave cavity in the cavity unit keeps 1-3bar air pressure in the system through rubber sealing, and the microwave sliding block unit is positioned in the cavity unit; the outer side of the cavity unit is connected with the three external straight waveguides which are respectively connected with two klystrons microwave sources and a microwave transmission link;
the microwave slider unit is provided with a straight waveguide and an H-face reversing waveguide, and the remote control unit is arranged on the upper side of the cavity unit and connected with the microwave slider unit and used for controlling the microwave slider unit to move up and down in the cavity unit, so that the switching between the straight waveguide and the H-face reversing waveguide in the microwave slider unit is realized in a region far away from the radiation region; water cooling grooves are arranged above and below the straight waveguide of the microwave slider unit, and the corner of the chamfer of the H-surface reversing waveguide is provided with the water cooling grooves and is connected to the dynamic sealing water cooling unit;
the dynamic sealing water cooling unit comprises a water inlet and a water outlet, a water pipe and a corrugated pipe and is used for removing heat generated in high-power steady-state operation.
2. The C-band hundred-kilowatt-level steady-state high-power water-cooled microwave switch according to claim 1, characterized in that: the cavity unit comprises a hollow cavity, an upper cover plate and a lower cover plate; three side surfaces of the hollow cavity are respectively provided with an assembly flange which is used for being communicated with the klystron and the microwave transmission link; the air sealing between the hollow cavity and the upper cover plate and the air sealing between the hollow cavity and the lower cover plate are realized through the sealing rings, and the air sealing between the three external straight waveguides and the cavity unit is realized through the end face sealing rings.
3. The C-band hundred-kilowatt-level steady-state high-power water-cooled microwave switch according to claim 1, characterized in that: when the microwave sliding block unit is in a normal working state, the straight waveguide in the microwave sliding block unit is directly communicated with the klystron microwave source and the microwave transmission link; once the klystron of this way breaks down, remote control unit control microwave slider unit removes in cavity unit for the input of H face switching-over waveguide is connected with reserve klystron microwave source, and the output links to each other with the microwave transmission link, realizes the effective switching function of trouble klystron and reserve klystron, and straight waveguide upper and lower and H face corner cut are bent and are provided with the water-cooling tank respectively, are used for removing the heat that produces when high power operation.
4. The C-band hundred-kilowatt-level steady-state high-power water-cooled microwave switch according to claim 1, characterized in that: the dynamic sealing water cooling unit is used for removing heat generated in a high-power steady state and comprises a water inlet, a water outlet, a water pipe and a corrugated pipe; the displacement generated in the process of the sliding block rising or falling is absorbed by the expansion of the corrugated pipe, and the corrugated pipe, the top of the cavity and the water inlet and outlet are sealed by rubber, so that the pressure of 5bar in the water flow channel can be kept in the moving process, and the dynamic sealing is realized.
5. The C-band hundred-kilowatt-level steady-state high-power water-cooled microwave switch according to claim 1, characterized in that: the water-cooling pipeline is provided with a temperature detector, a pressure monitor and a flow sensor which are used for monitoring temperature, pressure and flow respectively, and the external straight waveguide and the H-surface chamfer angle water bending tank are in butt joint with the water pipe through the clamping sleeve joint.
6. The C-band hundred-kilowatt-level steady-state high-power water-cooled microwave switch according to claim 1, characterized in that: the cavity unit, the microwave slider unit and the three external straight waveguides are made of aluminum materials, and the dynamic sealing water-cooling unit is made of stainless steel materials.
7. The C-band hundred-kilowatt-level steady-state high-power water-cooled microwave switch according to claim 1, characterized in that: the microwave slider unit is limited by position switches of the upper cover plate and the lower cover plate of the cavity in the sliding process, so that the microwave slider unit is in butt joint with the external straight waveguide.
8. The C-band hundred-kilowatt-level steady-state high-power water-cooled microwave switch according to claim 1, characterized in that: a connecting block is designed above the H-face reversing waveguide, and the connecting block and the remote control unit are assembled together through screws.
9. The C-band hundred-kilowatt-level steady-state high-power water-cooled microwave switch according to claim 1, characterized in that:
the remote control unit comprises a two-position five-way electromagnetic valve, a first corrugated pipe, an upper position switch, a lower position switch, an air cylinder and an electromagnetic valve supporting base; the electromagnetic valve is provided with an air inlet hole, two air outlet holes and two air outlet holes, receives a signal instruction and controls the direction of air flow; the air inlet is connected with an air source, one air outlet is connected with the upper air inlet and outlet hole of the air cylinder, and the other air outlet is connected with the lower air inlet and outlet hole of the air cylinder; when air is fed from the lower part of the air cylinder, the air cylinder drives the microwave sliding block unit to move upwards, the corrugated pipe is contracted, and the microwave sliding block unit moves to the upper limiting cover plate position at the top of the cavity, the straight waveguide of the microwave sliding block unit is positioned in the microwave transmission channel, and the upper position switch is triggered and sends a position signal to determine the position of the microwave sliding block unit at the moment; when air is fed into the air cylinder, the air cylinder drives the microwave sliding block unit to move downwards, the first corrugated pipe extends, the microwave sliding block unit moves to the position of the lower limiting cover plate at the bottom of the cavity, the H-face reversing waveguide of the microwave sliding block unit is located in the microwave transmission channel, the lower position switch is triggered to send out a position signal, the position of the microwave sliding block unit is determined at the moment, and the air cylinder is fixed on the cover plate.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114006141A (en) * | 2021-11-03 | 2022-02-01 | 中国科学院合肥物质科学研究院 | Long-pulse high-power millimeter wave three-port power distribution grating |
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