CN117214225B - Long-pulse high-power millimeter wave transmitter heat removal performance testing device - Google Patents
Long-pulse high-power millimeter wave transmitter heat removal performance testing device Download PDFInfo
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- CN117214225B CN117214225B CN202311483811.7A CN202311483811A CN117214225B CN 117214225 B CN117214225 B CN 117214225B CN 202311483811 A CN202311483811 A CN 202311483811A CN 117214225 B CN117214225 B CN 117214225B
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- 238000012360 testing method Methods 0.000 title claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 70
- 238000011056 performance test Methods 0.000 claims abstract description 15
- 230000006835 compression Effects 0.000 claims abstract description 14
- 238000007906 compression Methods 0.000 claims abstract description 14
- 238000009413 insulation Methods 0.000 claims description 15
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 6
- 239000004519 grease Substances 0.000 claims description 3
- 230000004927 fusion Effects 0.000 abstract description 5
- 238000011160 research Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 4
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- 238000004458 analytical method Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000004484 Briquette Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009529 body temperature measurement 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
- 238000007405 data analysis Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
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- 239000003365 glass fiber Substances 0.000 description 1
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- 238000012544 monitoring process Methods 0.000 description 1
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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
- Y02E30/30—Nuclear fission reactors
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Abstract
The invention relates to the technical field of heat removal performance test in engineering research of a magnetic confinement nuclear fusion plasma microwave auxiliary heating system, and discloses a long-pulse high-power millimeter wave emission mirror heat removal performance test device, which comprises: the connecting frame is used for being connected with the transmitting mirror; the heating assembly comprises a heating element and a compression unit, the heating element is used for providing a heat source for the transmitting mirror and is arranged on the transmitting mirror in the middle, and the compression unit is arranged on the connecting frame and is used for propping the heating element against the mirror surface of the transmitting mirror; the temperature acquisition assembly comprises an elastic jacking unit and a plurality of temperature acquisition elements, wherein the temperature acquisition elements are tightly attached to the mirror surface of the transmitting mirror through the elastic jacking unit and are used for acquiring the mirror surface temperature of the transmitting mirror. The invention has the beneficial effects that: the heating element and the temperature acquisition element are ensured to be always clung to the mirror surface of the transmitting mirror, and the accuracy of the heat removal test result is improved.
Description
Technical Field
The invention relates to the technical field of heat removal performance test in engineering research of a magnetic confinement nuclear fusion plasma microwave auxiliary heating system, in particular to a long-pulse high-power millimeter wave emission mirror heat removal performance test device.
Background
In the research field of magnetic confinement nuclear fusion, a high-power millimeter wave heating system is an effective plasma auxiliary heating means, has the advantages of good locality, high power density, flexible regulation and control of deposition positions and the like, and when the electron cyclotron frequency in thermonuclear fusion plasma is consistent with or in a multiple relationship with the microwave electric field frequency, the electron will resonate and absorb microwave energy, so the millimeter wave heating system is also called an Electron Cyclotron Resonance Heating (ECRH) system. The output power of the millimeter wave source for the auxiliary heating of the magneto-confined nuclear fusion plasma reaches megawatts, the transmission and emission equipment matched with the system can bear corresponding power levels, and the heat removal performance of the emission mirror is one of key technologies for the quasi-optical emission antenna. When the ECRH system transmitting antenna of the EAST device operates, the transmitting mirror is in a high-temperature, high-vacuum and high-magnetic-field environment, the temperature distribution and the heat removal state of the transmitting mirror cannot be monitored in real time, the flow heat coupling simulation is a common heat removal performance design analysis means, and the heat removal performance test is the best choice for verifying the rationality of simulation analysis.
The heat removal performance of the actual measurement transmitting mirror can be simulated by adopting a high-power (kilowatt level) ceramic electric heating plate, and the temperature of the transmitting mirror is acquired through a temperature measuring element at multiple points. When the high-power ceramic heating plate continuously works, the heating plate and the transmitting mirror are required to be kept tightly attached all the time, so that the heating plate can effectively heat the transmitting mirror. Meanwhile, the temperature measuring element and the transmitting mirror surface are required to be tightly attached to each other, so that the accuracy and reliability of information acquisition are ensured. The high-temperature-resistant heat-conducting adhesive is a common means for fixing the heating sheet and the temperature measuring element, but when the heating temperature is continuously increased, the adhesive is easy to fall off, heat transfer is insufficient, the heating effect is reduced, and the acquisition temperature deviation is larger. Therefore, how to ensure that the heating power is effectively transmitted to the to-be-tested emitter and how to ensure that the temperature acquisition information is accurate are key points of experimental tests.
Disclosure of Invention
The purpose of the invention is that: the heat removal performance testing device for the long-pulse high-power millimeter wave transmitting mirror aims at solving the technical problems that heat transfer is insufficient and temperature acquisition information is inaccurate due to the fact that a heating element and a temperature measuring element are not firmly fixed between the heating element and the transmitting mirror at high temperature.
In order to achieve the above object, the present invention provides a long-pulse high-power millimeter wave transmitter heat removal performance test device, comprising:
the connecting frame is used for being connected with the transmitting mirror;
the heating assembly comprises a heating element and a compression unit, wherein the heating element is used for providing a heat source for the transmitting mirror and is arranged on the transmitting mirror in the middle, and the compression unit is arranged on the connecting frame and is used for propping the heating element against the mirror surface of the transmitting mirror;
the temperature acquisition assembly comprises an elastic jacking unit and a plurality of temperature acquisition elements, wherein the temperature acquisition elements are tightly attached to the mirror surface of the transmitting mirror through the elastic jacking unit and are used for acquiring the mirror surface temperature of the transmitting mirror.
Furthermore, the connecting frame comprises a frame body, connecting parts are formed at two ends of the frame body in a downward extending mode, connecting shafts are oppositely arranged on the connecting parts in a penetrating mode, and the connecting shafts are used for being correspondingly connected with shaft holes at two sides of the transmitting mirror.
Still further, compress tightly the unit and include T type briquetting and heat insulating board, T type briquetting with the link is fixed, T type briquetting below is equipped with the heat insulating board, the heat insulating board supports to establish heating element is last.
Still further, the T-shaped pressing block comprises a first screw rod and a pressing plate, wherein the first screw rod is arranged on the connecting frame in a penetrating way, a first anti-falling nut and a locking nut are arranged at the upper end of the first screw rod, the first anti-falling nut is positioned above the connecting frame, the locking nut is positioned below the connecting frame and is used for fixing the first screw rod and the connecting frame, and the axis of the first screw rod is vertical to the mirror surface of the transmitting mirror and is opposite to the center of the mirror surface of the transmitting mirror; the lower end of the first screw rod is provided with the pressing plate, the heat insulation plate is arranged below the pressing plate, and the heat insulation plate is propped against the heating element.
Still further, still be equipped with on the first screw rod and be used for elasticity roof pressure unit installation spacing fastening nut, fastening nut is located the lock nut below, lock nut with fastening nut cooperation will elasticity roof pressure unit is fixed.
Still further, the elastic pressing unit includes a connecting member and an elastic member; the elastic piece with connecting piece sliding connection, just the connecting piece in compress tightly the bilateral symmetry equipartition of unit have a plurality of the elastic piece, the elastic piece is used for with the temperature acquisition component supports to establish on the mirror surface of speculum.
Still further, the elastic component includes with guide bar and spring, the guide bar wears to establish on the connecting piece and with connecting piece swing joint, the cover is equipped with on the guide bar the spring, spring one end supports to be established on the connecting piece, the other end supports to be established on the guide bar, temperature acquisition element is located the guide bar below, the spring has the drive the guide bar is close to along the axial the trend of mirror surface motion of speculum.
Still further, the guide bar is the screw rod, the screw rod is equipped with second anticreep nut and roof pressure nut from top to bottom in proper order, second anticreep nut with roof pressure nut is located respectively the connecting piece upside down, spring one end supports and establishes on the connecting piece, the other end supports and establishes on the roof pressure nut, the spring has the drive the trend of screw rod downstream, temperature acquisition component is located the below of screw rod.
Furthermore, the two groups of temperature acquisition components are arranged, and the included angle between the two groups of temperature acquisition components is 30-60 degrees.
Further, the contact parts of the heating element, the temperature acquisition element and the transmitting mirror are all provided with heat conduction grease.
Compared with the prior art, the device for testing the heat removal performance of the long-pulse high-power millimeter wave transmitter has the beneficial effects that: the connecting frame is arranged and can be used for being quickly connected with the transmitting mirror; the heating element is used for providing a heat source for the emitter mirror and is arranged on the emitter mirror in the middle, and the pressing unit can prop the heating element against the mirror surface of the emitter mirror, so that the heating element is always in close contact with the mirror surface of the emitter mirror, and the heat generated by the heating element can be fully conducted to the emitter mirror; the temperature acquisition element is tightly attached to the mirror surface of the transmitting mirror through the elastic jacking unit and is used for acquiring the mirror surface temperature of the transmitting mirror, and the elastic jacking unit can firmly connect the temperature acquisition element and the transmitting mirror; the heating element, the temperature acquisition element and the transmitting mirror are respectively extruded and fixed through the compression unit and the elastic jacking unit, so that the accuracy of temperature acquisition information of the transmitting mirror is ensured, and the accuracy of a heat removal test result is improved. Provides reliable guarantee for the development of the long-pulse high-power millimeter wave emitter and also provides valuable reference for the research of a high-power millimeter wave heating system.
Drawings
Fig. 1 is a schematic structural diagram of a heat removal performance test device for a long-pulse high-power millimeter wave transmitter according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the structure of the mirror;
fig. 3 is a schematic structural diagram of a connection frame of a heat removal performance testing device for a long-pulse high-power millimeter wave transmitter according to an embodiment of the present invention;
fig. 4 is an assembly schematic diagram of a pressing unit of a long-pulse high-power millimeter wave transmitter heat removal performance test device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a T-shaped briquette of a long-pulse high-power millimeter wave transmitter heat removal performance test device according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a distribution of temperature acquisition components of a long-pulse high-power millimeter wave transmitter heat removal performance test device according to an embodiment of the present invention;
fig. 7 is a top view of a long pulse high power millimeter wave transmitter thermal removal performance test device according to an embodiment of the invention.
In the figure, 1, a connecting frame; 11. a frame body; 12. a connection part; 13. a connecting shaft; 2. a heating assembly 21, a heating element; 22. a compressing unit; 221. a T-shaped pressing block; 2211. a first screw; 2212. a pressing plate; 222. a heat insulating plate; 223. a first anti-slip nut; 224. a lock nut; 225. a fastening nut; 3. a temperature acquisition assembly 31 and an elastic jacking unit; 311. a connecting piece; 312. a screw; 313. a spring; 314. a second anti-slip nut; 315. pressing the nut; 32. a temperature acquisition element; a. a transmitting mirror; a1, a shaft hole.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "inner", "outer", etc. in the present invention are based on the positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices and elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the terms "first", "second", etc. are used in the description of various information, but the information should not be limited to these terms, which are only used to distinguish the same type of information from each other. For example, a "first" message may also be referred to as a "second" message, and similarly, a "second" message may also be referred to as a "first" message, without departing from the scope of the invention.
As shown in fig. 1, a heat removal performance testing device for a long-pulse high-power millimeter wave emitter according to a preferred embodiment of the present invention is configured to heat a mirror surface of an emitter a and then collect a temperature of the mirror surface, and fig. 2 is a schematic structural diagram of the emitter a, wherein two sides of the emitter are coaxially provided with shaft holes a1, and an axis of the shaft hole a1 is located on a symmetry plane in a width direction of the emitter, for installation with the heat removal performance testing device according to the present invention.
The invention relates to a long-pulse high-power millimeter wave emission mirror heat removal performance testing device, which comprises a connecting frame 1, a heating component 2 and a temperature acquisition component 3, wherein the connecting frame 1 is used for connecting with an emission mirror, and fixing the whole device with the emission mirror; the heating component 2 comprises a heating element 21 and a pressing unit 22, wherein the heating element 21 is used for providing a heat source for the reflector and is arranged on the reflector in the middle, and in order to ensure that the heating element 21 is tightly attached to the mirror surface of the reflector, the pressing unit 22 is arranged on the connecting frame 1 and is used for propping the heating element 21 against the mirror surface of the reflector, and in the embodiment, the heating element 21 adopts a common ceramic heating plate so as to be convenient to replace; the temperature acquisition component 3 is used for acquiring the temperature on the mirror surface and comprises an elastic jacking unit 31 and a temperature acquisition element 32, as the heating element 21 is arranged on the transmitting mirror in the middle, the temperature of the transmitting mirror close to the middle position and the temperature of the transmitting mirror far away from the middle position are different, so that the temperature of each area on the mirror surface can be conveniently measured, the reliability of test data analysis is improved, the elastic jacking unit 31 is provided with a plurality of temperature acquisition elements 32, the temperature acquisition elements 32 are always kept in a close fit state with the mirror surface in order to ensure the accuracy of acquiring the temperature, the temperature acquisition elements 32 are tightly attached to the mirror surface of the transmitting mirror through the elastic jacking unit 31 and the mirror surface of the transmitting mirror, and in some embodiments, the temperature acquisition elements 32 are thermal resistor elements or thermocouple elements, and the replacement is convenient.
Further, the connecting frame 1 is used for being connected with the transmitting mirror, for facilitating rapid assembly with the transmitting mirror, specifically, referring to fig. 3, the connecting frame 1 comprises a frame body 11, two ends of the frame body 11 extend downwards to form connecting portions 12, connecting shafts 13 are oppositely arranged on the two connecting portions 12 in a penetrating mode, the connecting shafts 13 are used for being correspondingly connected with shaft holes a1 on two sides of the transmitting mirror, the connecting shafts 13 are arranged in the shaft holes in a penetrating mode, assembly errors of the connecting frame 1 are reduced, and in the embodiment, the frame body 11 and the two connecting portions 12 are integrally formed and are of a C shape.
The compressing unit 22 is used for compressing and fixing the heating element 21, and comprises a T-shaped pressing block 221 and a heat insulation plate 222, wherein the T-shaped pressing block 221 is fixed with the connecting frame 1, the heat insulation plate 222 is arranged below the T-shaped pressing block 221, the heat insulation plate 222 is propped against the heating element 21, the heat insulation plate 222 is arranged to prevent part of heat from being lost through heat transfer when the heating element 21 heats the mirror surface, and the power consumption of the heating element 21 is larger, therefore, in the embodiment, the heat insulation plate 222 is made of a high-temperature-resistant glass fiber material with small heat conductivity coefficient.
Further, in order to facilitate designing the T-shaped pressing block 221, referring to fig. 4 and 5, the T-shaped pressing block 221 includes a first screw 2211 and a pressing plate 2212, wherein the first screw 2211 is used for being connected with the connecting frame 1, the pressing plate 2212 is used for pressing the heating element 21 by pressing the heat insulation plate 222, specifically, the first screw 2211 is vertically penetrating through the connecting frame 1, a first anti-disengaging nut 223 and a locking nut 224 are arranged at the upper end, the first anti-disengaging nut 223 is located above the connecting frame 1, the locking nut 224 is located below the connecting frame 1 and is used for fixing the first screw 2211 and the connecting frame 1, specifically, referring to fig. 1 and 3, the first anti-disengaging nut 223 is located above the frame 11, the locking nut 224 is located below the frame 11, and when the first screw 2211 is fixed, the upper end surface of the locking nut 224 is attached to the lower end surface of the frame 11. Since the heating element 21 is centrally disposed on the mirror, the axis of the first screw 2211 is perpendicular to the mirror surface of the mirror and is opposite to the center of the mirror surface of the mirror in order to make the pressure distribution uniform when it is pressed; the lower end of the first screw 2211 is provided with a pressing plate 2212, a heat insulation plate 222 is arranged below the pressing plate 2212, and the heat insulation plate 222 is propped against the heating element 21.
The elastic pressing unit 31 is used for pressing a plurality of temperature acquisition elements 32, and the plurality of temperature acquisition elements 32 are arranged at a distance from the center of the mirror surface, specifically, the elastic pressing unit 31 comprises a connecting piece 311 and an elastic piece; the elastic members are slidably connected with the connecting members, and referring to fig. 4 and 5, the connecting members are symmetrically and uniformly distributed on two sides of the pressing unit 22, and the elastic members are used for propping the temperature collecting element 32 against the mirror surface of the emitter.
Further, the elastic piece comprises a guide rod and a spring 313, the guide rod is arranged on the connecting piece 311 in a penetrating mode and is movably connected with the connecting piece, the spring 313 is sleeved on the guide rod, one end of the spring 313 is propped against the connecting piece 311, the other end of the spring 313 is propped against the guide rod, the temperature acquisition element 32 is located below the guide rod, and the spring 313 has a movement trend of driving the guide rod to axially approach the mirror surface of the reflecting mirror, so that the temperature acquisition element 32 is compressed.
Furthermore, in order to design the guide rod conveniently and adjust the elasticity of the spring 313, in this embodiment, the guide rod adopts the screw rod 312, in order to facilitate the installation and limit between the screw rod 312 and the connecting piece 311, the screw rod 312 is sequentially provided with a second anti-disengagement nut 314 and a jacking nut 315 from top to bottom, the second anti-disengagement nut 314 and the jacking nut 315 are respectively located at the upper side and the lower side of the connecting piece, one end of the spring 313 is propped against the connecting piece 311, the other end is propped against the jacking nut 315, the temperature acquisition element 32 is located below the screw rod 312, the spring 313 has a trend of driving the screw rod 312 to move downwards, and the compression amount of the spring 313 can be adjusted correspondingly to adjust the required compression force of the temperature acquisition element 32 by adjusting the height of the jacking nut 315, so that the temperature acquisition element 32 is prevented from being damaged due to excessive compression force. In this embodiment, referring to fig. 1 and 4, the number of screws 312 in the single elastic pressing unit 31 is 8, the number of corresponding temperature collecting elements 32 is also 8, and the number of screws 312 can be increased or decreased according to the mirror surface of the emitter.
In this embodiment, in order to facilitate the installation and limiting of the elastic pressing unit 31 and the pressing unit 22, a first screw 2211 is further provided with a limiting fastening nut 225 for installing the elastic pressing unit, specifically, a through hole for sleeving the first screw 2211 is provided in the middle of the connecting piece 311, the fastening nut 225 is located below the locking nut 224, and the locking nut 224 and the fastening nut 225 cooperate to fix the connecting piece 311, so that the elastic pressing unit 31 is fixed.
Because the more the temperature data are collected in different areas on the mirror surface of the transmitting mirror when the temperature of the transmitting mirror is collected, the more accurate the final test structure is, when the temperature collection assembly 3 is arranged as a single one, in order to facilitate the measurement of a plurality of groups of temperature data, the temperature measurement can be carried out in different areas on the reflecting mirror by adjusting the installation angle of the temperature collection unit; in order to further improve the measurement efficiency, referring to fig. 6 and 7, the temperature collection assemblies 3 are arranged in two groups, so that the two groups of temperature collection assemblies 3 measure the temperatures of different areas on the mirror surface, the two groups of temperature collection assemblies 3 are arranged in a stacked manner and form a certain angle, and as the temperature collection elements on the two groups of temperature collection assemblies 3 are distributed, a plurality of temperatures in different areas of the mirror surface can be collected, which is favorable for improving the accuracy of the test result, the angle alpha between the two groups of temperature collection assemblies 3 is between 30 and 60 degrees, that is, the angle between the two groups of temperature collection assemblies 3 can be changed by 30 to 60 degrees when the temperature test is performed, so that more monitoring is realized. Furthermore, the temperature acquisition components 3 can be arranged into a plurality of groups, so that a plurality of groups of temperature data can be measured at one time, and the temperature acquisition components can be adaptively adjusted according to actual temperature acquisition conditions.
Further, in order to improve the heating efficiency of the heating element 21 to the emitter and the measurement efficiency of the temperature collecting element 32, thermal grease is provided at the contact points of the heating element 21, the temperature collecting element 32 and the emitter.
The working process of the invention is as follows: firstly, the temperature acquisition assembly 3, the compression unit 22 and the connecting frame 1 are assembled, then the heating element 21 is arranged on the mirror surface of the transmitting mirror in a centered manner, meanwhile, the heat insulation plate 222 is covered on the heating element 21, then the connecting frame 1 is connected with the transmitting mirror through the two connecting shafts 13, the locking nut 224 on the compression unit 22 is adjusted to tightly attach the heating element 21 to the mirror surface of the transmitting mirror, the top pressing nut 315 in the temperature acquisition unit is adjusted, and the temperature acquisition element 32 is tightly attached to the mirror surface of the transmitting mirror.
In summary, the embodiment of the invention provides a long-pulse high-power millimeter wave emission mirror heat removal performance testing device, which is provided with a connecting frame 1, and can be used for being quickly connected with an emission mirror; the heating element 21 is used for providing a heat source for the emitter mirror and is arranged on the emitter mirror in the middle, and the pressing unit 22 can prop the heating element 21 against the mirror surface of the emitter mirror, so that the heating element 21 is always in close contact with the mirror surface of the emitter mirror, and the heat generated by the heating element 21 can be fully conducted to the emitter mirror; the temperature acquisition element 32 is tightly attached to the mirror surface of the transmitting mirror through the elastic jacking unit 31 and is used for acquiring the mirror surface temperature of the transmitting mirror, and the elastic jacking unit 31 can firmly connect the temperature acquisition element and the transmitting mirror; the heating element 21, the temperature acquisition element 32 and the transmitting mirror are respectively extruded and fixed through the compression unit 22 and the elastic jacking unit 31, so that the accuracy of temperature acquisition information of the transmitting mirror is ensured, and the accuracy of a heat removal test result is improved. Provides reliable guarantee for the development of the long-pulse high-power millimeter wave emitter and also provides valuable reference for the research of a high-power millimeter wave heating system.
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 (5)
1. The device for testing the heat removal performance of the long-pulse high-power millimeter wave transmitter is characterized by comprising the following components:
the connecting frame is used for being connected with the transmitting mirror;
the heating assembly comprises a heating element and a compression unit, wherein the heating element is used for providing a heat source for the transmitting mirror and is arranged on the transmitting mirror in the middle, and the compression unit is arranged on the connecting frame and is used for propping the heating element against the mirror surface of the transmitting mirror;
the temperature acquisition assembly comprises an elastic jacking unit and a plurality of temperature acquisition elements, and the temperature acquisition elements are closely arranged through the elastic jacking unit and the mirror surface of the transmitting mirror and are used for acquiring the mirror surface temperature of the transmitting mirror; the connecting frame comprises a frame body, connecting parts are formed by extending two ends of the frame body downwards, connecting shafts are oppositely arranged on the two connecting parts in a penetrating mode, and the connecting shafts are used for being correspondingly connected with shaft holes on two sides of the transmitting mirror;
the compression unit comprises a T-shaped pressing block and a heat insulation plate, the T-shaped pressing block is fixed with the connecting frame, and the heat insulation plate is arranged below the T-shaped pressing block;
the T-shaped pressing block comprises a first screw rod and a pressing plate, the first screw rod is arranged on the connecting frame in a penetrating mode, a first anti-falling nut and a locking nut are arranged at the upper end of the first screw rod, the first anti-falling nut is located above the connecting frame, the locking nut is located below the connecting frame and used for fixing the first screw rod and the connecting frame, and the axis of the first screw rod is perpendicular to the mirror surface of the transmitting mirror and faces the center of the mirror surface of the transmitting mirror; the lower end of the first screw is provided with the pressing plate, the heat insulation plate is arranged below the pressing plate, and the heat insulation plate is propped against the heating element;
the first screw is also provided with a fastening nut for limiting the installation of the elastic jacking unit, the fastening nut is positioned below the locking nut, and the locking nut and the fastening nut are matched to fix the elastic jacking unit;
the elastic jacking unit comprises a connecting piece and an elastic piece; the elastic piece is in sliding connection with the connecting piece, a plurality of elastic pieces are symmetrically and uniformly distributed on two sides of the pressing unit by the connecting piece, and the elastic pieces are used for propping the temperature acquisition element against the mirror surface of the transmitting mirror;
the connecting piece is provided with a through hole in the middle, the through hole is sleeved on the first screw rod, and the locking nut and the fastening nut are matched to fix the connecting piece, so that the elastic jacking unit is fixed.
2. The long pulse high power millimeter wave transmitter heat removal performance test device of claim 1, wherein: the elastic piece comprises a guide rod and a spring, wherein the guide rod penetrates through the connecting piece and is movably connected with the connecting piece, the spring is sleeved on the guide rod, one end of the spring is propped against the connecting piece, the other end of the spring is propped against the guide rod, the temperature acquisition element is located below the guide rod, and the spring has a tendency of driving the guide rod to move along the axial direction and close to the mirror surface of the transmitting mirror.
3. The long pulse high power millimeter wave transmitter heat removal performance test device of claim 2, wherein: the guide rod is a screw rod, the screw rod is sequentially provided with a second anti-falling nut and a jacking nut from top to bottom, the second anti-falling nut and the jacking nut are respectively located on the upper side and the lower side of the connecting piece, one end of the spring is propped against the connecting piece, the other end of the spring is propped against the jacking nut, the spring has a trend of driving the screw rod to move downwards, and the temperature acquisition element is located below the screw rod.
4. The long pulse high power millimeter wave transmitter heat removal performance test device of claim 1, wherein: the temperature acquisition assemblies are two groups, and the included angle between the two groups of temperature acquisition assemblies is 30-60 degrees.
5. The long pulse high power millimeter wave transmitter heat removal performance test device of claim 1, wherein: and the contact parts of the heating element, the temperature acquisition element and the transmitting mirror are all provided with heat conduction grease.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311483811.7A CN117214225B (en) | 2023-11-09 | 2023-11-09 | Long-pulse high-power millimeter wave transmitter heat removal performance testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311483811.7A CN117214225B (en) | 2023-11-09 | 2023-11-09 | Long-pulse high-power millimeter wave transmitter heat removal performance testing device |
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| CN117214225A CN117214225A (en) | 2023-12-12 |
| CN117214225B true CN117214225B (en) | 2024-02-09 |
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| JP2007157293A (en) * | 2005-12-08 | 2007-06-21 | Funai Electric Co Ltd | Structure of mounting launch mirror on base member |
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