CN208155913U - Experimental device for low-temperature fluid condensation and flow visualization - Google Patents
Experimental device for low-temperature fluid condensation and flow visualization Download PDFInfo
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- CN208155913U CN208155913U CN201820834580.8U CN201820834580U CN208155913U CN 208155913 U CN208155913 U CN 208155913U CN 201820834580 U CN201820834580 U CN 201820834580U CN 208155913 U CN208155913 U CN 208155913U
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Abstract
The utility model relates to a cryogenic fluid flow experiment field discloses a cryogenic fluid condenses and visual experimental apparatus that flows, experimental apparatus includes: the experimental device comprises: the loop heat pipe comprises a condenser and an evaporator which are connected into a loop in a closed loop manner; a refrigerator in contact with the condenser; and the heat insulation system surrounds at least part of the loop heat pipe and at least part of the refrigerating machine, and at least part of the heat insulation system is transparent, wherein the condenser comprises a bottom plate and a transparent cover plate, a channel is arranged on the bottom plate, and the transparent cover plate is attached to the bottom plate and surrounds the channel on the bottom plate to form a condensation channel. The utility model discloses a low-temperature fluid condenses with the visual experimental apparatus that flows can be visual with the process of condensing and flowing of low-temperature fluid, solves the structural strength problem that cold and hot impact, structure coefficient of thermal expansion differ greatly etc. and bring simultaneously.
Description
Technical field
The utility model relates to cryogen flowing experiment fields, and condensing more particularly to a kind of cryogen can with flowing
Depending on the experimental provision changed.
Background technique
Nowadays, the fields such as aerospace, superconductor technology and electronic device are quickly grown, and sub-cooled technology faces tighter
High challenge, cryogen are more and more extensive as the application field of cooling medium or heat transfer medium.Cryogen was being applied
The gas-liquid phase transitions heat transfer process such as evaporation or condensation inevitably occurs in journey, and along with low temperature gas-liquid in heat transfer process
Two-phase flow phenomenon.
Cryogenic fluid is different from the physical parameter of room temperature working medium, such as surface tension, the vaporization of nitrogen, oxygen, hydrogen cryogenic fluid
Latent heat is much smaller than room temperature working medium such as water, ammonia, freon, so that the flowing of cryogenic fluid has with heat transfer process and room temperature working medium
Very big difference, many empirical equations established based on room temperature working medium can not actual physical process under accurate description low temperature, therefore
It needs to be directed to gas liquid two-phase flow and heat transfer characteristic under low temperature environment to be furtherd investigate.The gas liquid two-phase flow of cryogen
There is complicated problem in science, including gas-liquid interface and two phase flow signals variation, gas-liquid distribution and flowing resistance with heat transfer process
The problems such as force characteristic, usually moves Cryogenic two-phase flows using numerical simulation and laboratory facilities and heat exchange is studied, due to
The problem in science of this work is complicated, and numerical simulation is difficult to carry out accurate description to it, by experimental study to its course of work
It is analyzed and is explored and is more intuitive and reliable.
During experimental study, in order to grasp gas-liquid interface and the two phase flow signals change in the condensation process of low temperature microchannel
Change, gas-liquid distribution situation, needs to be observed by visualization means, it is therefore desirable to develop visual test device.It is low
Temperature visualization element is usually transparent non-metallic material, due to contacting with cryogen, not only to meet visualization requirements, also want
It is able to bear the cooling thermal impact that low temperature, room temperature alternately change；Visualization element is connected and fixed with metal material, since thermal expansion is
Number differs greatly, and sealing difficulty is bigger under low temperature, or even visualization element can be broken；Visualization element will also meet resistance to height
Pressure request.In addition, traditional pump drive can not use at low ambient temperatures due to the limitation of low temperature seal and material requirements,
Generally rely on gravity driving gas-liquid two-phase Working fluid flow, it has not been convenient to carry out the research of horizontal direction two-phase flow, it is also not square
Just flow velocity adjusting is carried out.These problems bring huge challenge to the structure design and insulated design of low temperature visualization device.
Utility model content
(1) technical problems to be solved
The purpose of the utility model is to provide a kind of experimental provisions of cryogen condensation and flow visual, and being used for will be low
The brings structures such as the condensation of warm fluid and flow process visualize, and solution cooling thermal impact, structural member thermal expansion coefficient differ greatly
Strength problem, while solving the flow driving of cryogen and flow velocity regulation problem in the case where not depending on pump or gravity.
(2) technical solution
In order to solve the above-mentioned technical problem, the utility model provides the experiment of a kind of cryogen condensation and flow visual
Device, the experimental provision include：Loop heat pipe is connected as the condenser and evaporator in circuit including closed loop；Refrigeration machine, with institute
State condenser contact；And adiabatic system, it will at least partly described loop heat pipe and at least partly the refrigeration machine surrounds, institute
State at least partly light transmission of adiabatic system, wherein the condenser includes bottom plate and euphotic cover plate, and the bottom plate is equipped with slot
Road, the euphotic cover plate are bonded with the bottom plate, surround condensation channel jointly with the conduit on the bottom plate.
Preferably, the bottom plate is equipped with the first groove towards the one side of the euphotic cover plate, and the euphotic cover plate is placed in institute
It states in the first groove, there are predetermined gaps between the inner peripheral surface of first groove and the edge of the euphotic cover plate.
Preferably, low temperature glue is filled in the gap.
Preferably, the condenser further includes：Fixed plate, the central part opening of the fixed plate, peripheral portion is by institute
The edge for stating euphotic cover plate is fixed on the bottom plate.
Preferably, the fixed plate is equipped with the second groove towards the one side of the euphotic cover plate, sets in second groove
Set gasket.
Preferably, the conduit on the bottom plate is serpentine-like or spiral yarn shaped.
Preferably, the loop heat pipe further includes：The condenser is connect by liquid line with the evaporator；Gas
The evaporator is connect by pipeline with the condenser；Air reservoir is connect with the gas piping.
Preferably, the adiabatic system includes：Vacuum (-tight) housing is cylindrical in shape；Bottom head covers and top end cover are separately positioned on institute
The bottom end and top for stating vacuum (-tight) housing, jointly will at least partly described loop heat pipe and at least partly described system with the vacuum (-tight) housing
Cold is surrounded, wherein the second window that the top end cover is equipped with the first window for observation and enters for external light source
Mouthful, the position of the first window is corresponding with the position of the condenser.
Preferably, the first window and second window include：Window pedestal is fixed with the top end cover；
Light-transmitting plate；And connection cover, the connection cover fix the light-transmitting plate and the window pedestal, the light-transmitting plate and the window
Sealing ring is set between mouth pedestal.
Preferably, tapered opening is arranged back to the side of the light-transmitting plate in the window pedestal of second window.
(3) beneficial effect
The experimental provision with flow visual is condensed according to cryogen provided by the utility model, the adiabatic system
At least partly light transmission, the condenser include euphotic cover plate, and the condensation process of cryogen is visualized.By in loop heat pipe
Gas liquid two-phase flow phenomenon carry out the visual research of cryogenic temperature condensation process, without relying on gravity or additional setting driving
Pump is flowed using the capillarity driving gas-liquid two-phase working medium circulation in evaporator, is not limited by Working fluid flow direction.Circuit
Heat pipe is closed device, flows into during test without working medium, outflow, does not discharge externally, by adjusting evaporator heating
Size is measured, the adjusting of refrigerant flow rate can be advantageously carried out, by adjusting working medium charging amount and/or adjusting evaporator heating amount,
The saturation pressure and temperature in condensation process can be adjusted and be changed, the research of cryogenic temperature condensation process under different operating conditions is carried out.This
It can be the condensation process of the wider operation temperature area cryogenic fluid of research using Cryo Refrigerator as cold source in outer the utility model
Cooling is provided.
Condenser includes euphotic cover plate and bottom plate, and euphotic cover plate is bonded with bottom plate, thus total with the conduit on the bottom plate
With condensation channel is surrounded, the sealing structure difficulty of above-mentioned condenser is reduced, and can solve the condenser of conventional visualization due to cold
Thermal shock, structural member thermal expansion coefficient such as differ greatly at the brings structural strength problem.
In a preferred embodiment, the bottom plate is equipped with the first groove, the light transmission towards the one side of the euphotic cover plate
Cover board is placed in first groove, and there are between predetermined between the inner peripheral surface of first groove and the edge of the euphotic cover plate
Gap further can fill low temperature glue in the gap for buffering the expansion or shrinkage deformation between bottom plate and euphotic cover plate.
Furthermore the condenser further includes fixed plate, and the fixed plate is equipped with the second groove towards the one side of the euphotic cover plate, described
Gasket is set in the second groove.The bottom plate and euphotic cover plate circumferential direction cooperation position prepsetting gap of above-mentioned condenser simultaneously fill low temperature
Glue, then fixed by fixed plate attachment screw fastening means, it effectively avoids high/low temperature variation from damaging condenser, passes through pad
Piece is alleviated between fixed plate, euphotic cover plate and fastening screw because of expansion caused by coefficient of thermal expansion difference, the influence shunk, into
One step improves condenser sealing and voltage endurance capability.
In a preferred embodiment, the top end cover of adiabatic system is equipped with for the first window of observation and for outside
Tapered opening, energy is arranged back to the side of the light-transmitting plate in the window pedestal of the second window that light source enters, second window
Enough make second window size more compact, the angle that light enters adiabatic system is wider, and the light for guaranteeing that light source issues smoothly is penetrated
To the euphotic cover plate of condenser.
Detailed description of the invention
Fig. 1 is that the cryogen condensation of the utility model embodiment and the cross section structure of the experimental provision of flow visual show
It is intended to；
Fig. 2 is the stereo decomposing of the cryogen condensation and the experimental provision of flow visual of the utility model embodiment
Figure；
Fig. 3 is the cryogen condensation and the loop heat pipe of the experimental provision of flow visual of the utility model embodiment
Perspective view；
Fig. 4 shows the cryogen condensation and the condenser of the experimental provision of flow visual of the utility model embodiment
Cross section structure schematic diagram；
Fig. 5 shows the condenser bottom of the cryogen condensation and the experimental provision of flow visual of the utility model embodiment
The top view of plate；
Fig. 6 shows the cryogen condensation and the evaporator of the experimental provision of flow visual of the utility model embodiment
Cross section structure schematic diagram；
Fig. 7 shows the top end cover of the cryogen condensation and the experimental provision of flow visual of the utility model embodiment
Cross section structure schematic diagram.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Example is not intended to limit the scope of the present invention for illustrating the utility model.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
The utility model provides a kind of experimental provision of cryogen condensation and flow visual, for by cryogen
Flow process and condensation process visualization.The cryogen condensation and flowing of the utility model embodiment is shown respectively in Fig. 1 and Fig. 2
The cross section structure schematic diagram and stereogram exploded view of visual experimental provision.Cryogen condensation and the experiment of flow visual fill
It sets including loop heat pipe 100, refrigeration machine and adiabatic system.
Fig. 3 is the loop heat pipe of the cryogen condensation and the experimental provision of flow visual of the utility model embodiment
100 perspective view.Loop heat pipe 100 includes the condenser 110 and evaporator 120 that closed loop is connected as circuit.
Refrigeration machine can be pulse tube refrigerating machine, sterlin refrigerator, GM refrigeration machine or its Cryo Refrigerator, with condensation
Device 110 contacts.
Adiabatic system will at least partly loop heat pipe 100 and at least partly refrigeration machine surround, the insulation system of the present embodiment
At least partly light transmission of system.
Fig. 4 shows the condenser of the cryogen condensation and the experimental provision of flow visual of the utility model embodiment
110 cross section structure schematic diagram, condenser 110 include bottom plate 111 and euphotic cover plate 112, and Fig. 5 shows the vertical view of bottom plate 111
Figure, bottom plate 111 are equipped with conduit 1111, and euphotic cover plate 112 is bonded with bottom plate 111, encloses jointly with the conduit 1111 on bottom plate 111
At condensation channel.
Conduit 1111 on bottom plate 111 can be serpentine-like or spiral yarn shaped.The cross section of conduit 1111 in the present embodiment
For rectangle, the cross section of the condensation channel of formation is also rectangle.In other embodiments, it can also open up and cut on bottom plate 111
Face is the conduit 1111 of V-type, constitutes the condensation channel that section is triangle with euphotic cover plate 112, or in bottom plate 111 and light transmission
Opening up section on cover board 112 respectively is semicircular conduit, and Formation cross-section is circular condensation channel after assembling, and can also be set
It is calculated as other cross sectional shapes.
According to the experimental provision of cryogen provided by the utility model condensation and flow visual, adiabatic system is at least
Partial light permeability, condenser 110 include euphotic cover plate 112, and the condensation process of cryogen is visualized.By loop heat pipe 100
Interior gas liquid two-phase flow phenomenon carries out the visual research of cryogenic temperature condensation process, drives without relying on gravity or being additionally arranged
Dynamic pump is flowed using the capillarity driving gas-liquid two-phase working medium circulation in evaporator 120, not by the limit in Working fluid flow direction
System.Loop heat pipe 100 is closed device, flows into during test without working medium, outflow, does not discharge externally, by adjusting
120 heating amount size of evaporator can advantageously carry out the adjusting of refrigerant flow rate, by adjusting working medium charging amount and/or adjusting
120 heating amount of evaporator can adjust and change the saturation pressure and temperature in condensation process, and it is solidifying to carry out low temperature under different operating conditions
The research of knot process.Furthermore use Cryo Refrigerator as cold source in the utility model, it can be low to study wider operation temperature area
The condensation process of warm working medium provides cooling.
Condenser 110 includes euphotic cover plate 112 and bottom plate 111, and euphotic cover plate 112 is bonded with bottom plate 111, thus and bottom plate
Conduit 1111 on 111 surrounds condensation channel jointly, and the sealing structure difficulty of above-mentioned condenser 110 reduces, and can solve tradition
Visual condenser 110 the brings structural strength problem such as is differed greatly due to cooling thermal impact, structural member thermal expansion coefficient.
Further, bottom plate 111 is equipped with the first groove 1112 towards the one side of euphotic cover plate 112, and euphotic cover plate 112 is placed in
In first groove 1112, predetermined gap can be set between the inner peripheral surface of the first groove 1112 and the edge of euphotic cover plate 112, it should
Low temperature glue 114 may further be filled in gap, by the way that gap or low temperature glue 114 is arranged in bottom plate 111 and euphotic cover plate 112,
Bottom plate 111, euphotic cover plate 112 can be alleviated because of expansion, effect of contraction caused by coefficient of thermal expansion difference, improve condenser 110
Sealing performance and structural strength.
This external condenser 110 further includes fixed plate 113, the central part opening of fixed plate 113, and peripheral portion is by euphotic cover
The edge of plate 112 is fixed on bottom plate 111.Further, one side of the fixed plate 113 towards euphotic cover plate 112 is recessed equipped with second
Slot 1131, the interior setting gasket 115 of the second groove 1131.
In the utility model embodiment, the circumferential cooperation position of bottom plate 111 and euphotic cover plate 112 of condenser 110 is default
Low temperature glue 114 is simultaneously filled in gap, then is fixed by 113 attachment screw fastening means of fixed plate, effectively avoids high/low temperature variation pair
Condenser 110 damages, and is alleviated between fixed plate 113, euphotic cover plate 112 and fastening screw by gasket 115 because of heat expansion
Expansion caused by coefficient is different, the influence shunk, further increase 110 sealing performance of condenser and voltage endurance capability.
In the present embodiment, loop heat pipe 100 further includes liquid line 130, gas piping 140, air reservoir 150.Liquid line
Condenser 110 is connect by road 130 with evaporator 120, and evaporator 120 is connect by gas piping 140 with condenser 110, air reservoir 150
It is connect with gas piping 140.Condenser 110, liquid line 130, evaporator 120, gas piping 140 are sequentially connected with composition circuit
Structure, air reservoir 150 are connected by air reservoir connecting leg 151 and threeway 152 with gas piping 140.Air reservoir 150 is for alleviating circuit heat
Pipe 100 at room temperature hypertonia the problem of, design can be required according to gas-liquid ratio under low temperature environment and operating pressure
150 size of air reservoir.Liquid line 130, gas piping 140 can be made of thin-wall metal pipe, according to system requirements and space cloth
Office's situation designs the parameters such as length of pipe and diameter, for example, can also be bent into pipeline to keep cryogenic system more compact
U-shaped structure.In the present embodiment, the inflating port 160 of loop heat pipe 100 is arranged on air reservoir 150, passes through external pipeline and valve
It is connect with inflating port 160, fills cryogenic fluid into loop heat pipe 100.
Fig. 6 shows the evaporator of the cryogen condensation and the experimental provision of flow visual of the utility model embodiment
120 cross section structure schematic diagram may include capillary structure 121, shell 122, import in the evaporator 120 of loop heat pipe 100
End cap 125 and outlet end cap 126, shell 122 and inlet end cap 125, outlet end cap 126 form cavity, 121 conduct of capillary structure
Liquid-sucking core is set to inside shell 122, and several gas conduits 123 are equipped between 122 inner wall of 121 outer surface of capillary structure and shell,
The gas working medium for coming out 121 surface evaporation of capillary structure passes through the hair of capillary structure 121 in time to 140 dissipation of gas piping
Spy provides driving force with for working medium circulation flowing in circuit, needs not rely on pump or gravity, therefore the utility model energy
It is enough in the visual research that cryogenic temperature condensation process is carried out in space.Liquid storage device 124, liquid storage device 124 can also be arranged in evaporator 120
Stainless steel, titanium or the lesser metal material of other thermal coefficients can be used, the shell 122 of evaporator 120 can use red copper
The equal biggish material of thermal coefficients is arranged transition annulus between liquid storage device 124 and shell 122 and is welded, liquid storage device 124 with
It is connected inside capillary structure 121, for storing excessive liquid working substance, control and the leakage heat for adjusting evaporator 120, improves and steam
120 operation stability of device is sent out, secondary capillary structure (not shown) can be set between liquid storage device 124 and capillary structure 121,
It to supplement inside capillary structure 121 and is flowed convenient for the liquid in liquid storage device 124.
The adiabatic system of the present embodiment includes vacuum (-tight) housing 310, bottom head covers 320 and top end cover 330.Vacuum (-tight) housing 310 is in
Tubular, bottom head covers 320 and top end cover 330 are separately positioned on the bottom end and top of vacuum (-tight) housing 310, common with vacuum (-tight) housing 310
It incites somebody to action at least partly loop heat pipe 100 and at least partly refrigeration machine surrounds.Wherein, top end cover 330 is equipped with for observation
First window 331 and the second window 332 entered for external light source, the position of first window 331 and the position of condenser 110
It is corresponding.
Vacuum interface 311 and pin interfaces 312 are offered on vacuum (-tight) housing 310, by vacuum interface 311 by vacuum (-tight) housing 310
It is connected with vacuum pump set, by pin interfaces 312 by the internal such as lead of thermometer, adding thermal resistance and external acquisition system
It is connected.The upper and lower ends of vacuum (-tight) housing 310 are respectively equipped with flange and seal groove, and rubber ring is used in the seal groove of vacuum (-tight) housing 310
Or polytetrafluoroethylene gasket sealing, it is fastened between bottom head covers 320, top end cover 330 by screw.
Fig. 7 shows the top end cover of the cryogen condensation and the experimental provision of flow visual of the utility model embodiment
330 cross section structure schematic diagram, first window 331 and the second window 332 include window pedestal 3301, light-transmitting plate 3302 and
Connection cover 3303.Window pedestal 3301 and top end cover 330 are fixed, and connection cover 3303 is by light-transmitting plate 3302 and window pedestal 3301
It is fixed, sealing ring 3304 is set between light-transmitting plate 3302 and window pedestal 3301, and window pedestal 3301 is towards light-transmitting plate 3302
Seal groove can be set in side, for accommodating above-mentioned sealing ring 3304.
High-speed camera can shoot with video-corder condensation process gas-liquid two-phase Working fluid flow in condenser 110 by first window 331
State.External light source can be entered in adiabatic system by the second window 332 to be radiated on condenser 110.Second window 332
Tapered opening can be set in the side of window pedestal 3301 back to light-transmitting plate 3302, and 332 size of the second window can be made more to step up
It gathers, the angle that light enters adiabatic system is wider, guarantees the euphotic cover plate for the smooth directive condenser 110 of light that light source issues
112。
In top end cover 330, first window 331 can direction towards top end cover 330 towards loop heat pipe 100 it is convex
Out, shorten first window 331 at a distance from condenser 110, be more advantageous to high-speed camera and shot.Second window, 332 court
It is protruded to top end cover 330 backwards to the direction of loop heat pipe 100, the second window 332 and first window 331 are in top end cover 330
On distance can be relatively closer, thus guarantee light source light be smoothly irradiated to condenser 110 in the case where, make second
The opening size of window 332 can be more compact.
As previously mentioned, refrigeration machine can be any in a variety of refrigeration machines, carried out by taking pulse tube refrigerating machine as an example herein
Explanation comprising cold head 210, cold finger 220 and compressor connecting leg 230, cold head 210 are located in adiabatic system, and with condensation
Device 110 contacts, and cold head 210 passes sequentially through cold finger 220 and compressor connecting leg 230 and connect with the compressor in the adiabatic system external world.
In the present embodiment, refrigeration machine is arranged in the bottom head covers 320 of adiabatic system, hot end of the bottom head covers 320 as refrigeration machine, uses
It radiates in refrigeration machine, wherein cold head 210, cold finger 220 are located in adiabatic system, the cold head 210 of 110 bottom of condenser and refrigeration machine
It is connected by screw to or low temperature glue sticking is tightly fastened.Flange 321 can also be arranged in the edge of bottom head covers 320, for it is true
Sky cover 310 connection, experimental provision can also include bracket 400, bracket can also with flange 321, at the bottom of entire experimental provision
Portion supports and fixes the offer of entire experimental provision.
Furthermore, it is possible in the bottom plate 110 of loop heat pipe 100,110 inlet and outlet position of condenser, evaporator 120, system
Thermometer is respectively set on the cold head 210 of cold, monitoring temperature changes during the test.Heating is set on evaporator 120
Device makes 121 surface of capillary structure generate capillarity, working medium circulation in driving circuit heat pipe 100 by heating evaporation device 120
Flowing.
Aluminium plating terylene film multilayer is wound in 220 outer surface of cold finger of loop heat pipe 100, refrigeration machine, makes condenser 110
112 region of euphotic cover plate keeps exposed, reduces external environment to the environment of internal system and leaks heat, while not influencing to condenser
110 observation process.
Cold screen can also be set in vacuum (-tight) housing 310, and cold screen surrounds the cold finger 220 of loop heat pipe 100, refrigeration machine
Come, cold screen is not contacted with the cold finger 220 of loop heat pipe 100, refrigeration machine, is avoided conductive force from causing leakage heat, is wound on cold screen
Aluminium plating terylene film multilayer corresponds to the region of first window 331 and the second window 332 on cold screen and multilayer aluminium plating terylene film
Setting opening, guarantees the euphotic cover plate 112 of the smooth directive condenser 110 of the light of light source, and keep high-speed camera smooth
Shoot with video-corder the Liquid Flow process inside condenser 110.In addition, setting is stretched out for thermometer lead, heating wires on cold screen
Opening, make lead by opening connect across cold screen with the pin interfaces 312 on vacuum (-tight) housing 310.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (10)
1. the experimental provision of a kind of cryogen condensation and flow visual, which is characterized in that the experimental provision includes：
Loop heat pipe is connected as the condenser and evaporator in circuit including closed loop；
Refrigeration machine is contacted with the condenser；And
Adiabatic system, will at least partly described loop heat pipe and at least partly the refrigeration machine surrounds, the adiabatic system
At least partly light transmission,
Wherein, the condenser includes bottom plate and euphotic cover plate, and the bottom plate is equipped with conduit, the euphotic cover plate with it is described
Bottom plate fitting, surrounds condensation channel with the conduit on the bottom plate jointly.
2. experimental provision as described in claim 1, which is characterized in that the bottom plate is equipped with towards the one side of the euphotic cover plate
First groove, the euphotic cover plate are placed in first groove, inner peripheral surface and the euphotic cover plate of first groove
There are predetermined gaps between edge.
3. experimental provision as claimed in claim 2, which is characterized in that fill low temperature glue in the gap.
4. experimental provision as described in claim 1, which is characterized in that the condenser further includes：
The edge of the euphotic cover plate is fixed on the bottom by fixed plate, the central part opening of the fixed plate, peripheral portion
On plate.
5. experimental provision as claimed in claim 4, which is characterized in that the fixed plate is set on one side towards the euphotic cover plate
There is the second groove, gasket is set in second groove.
6. experimental provision as described in claim 1, which is characterized in that the conduit on the bottom plate is serpentine-like or spiral yarn shaped.
7. experimental provision as described in claim 1, which is characterized in that the loop heat pipe further includes：
The condenser is connect by liquid line with the evaporator；
The evaporator is connect by gas piping with the condenser；
Air reservoir is connect with the gas piping.
8. experimental provision as described in claim 1, which is characterized in that the adiabatic system includes：
Vacuum (-tight) housing is cylindrical in shape；
Bottom head covers and top end cover are separately positioned on the bottom end and top of the vacuum (-tight) housing, jointly near with the vacuum (-tight) housing
Loop heat pipe described in small part and at least partly described refrigeration machine surround,
Wherein, the second window that the top end cover is equipped with the first window for observation and enters for external light source, institute
The position for stating first window is corresponding with the position of the condenser.
9. experimental provision as claimed in claim 8, which is characterized in that the first window and second window include：
Window pedestal is fixed with the top end cover；
Light-transmitting plate；And
Connection cover, the connection cover fix the light-transmitting plate and the window pedestal, the light-transmitting plate and the window pedestal
Between sealing ring is set.
10. experimental provision as claimed in claim 9, which is characterized in that the window pedestal of second window is back to described
Tapered opening is arranged in the side of tabula rasa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820834580.8U CN208155913U (en) | 2018-05-31 | 2018-05-31 | Experimental device for low-temperature fluid condensation and flow visualization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820834580.8U CN208155913U (en) | 2018-05-31 | 2018-05-31 | Experimental device for low-temperature fluid condensation and flow visualization |
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| Publication Number | Publication Date |
|---|---|
| CN208155913U true CN208155913U (en) | 2018-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820834580.8U Withdrawn - After Issue CN208155913U (en) | 2018-05-31 | 2018-05-31 | Experimental device for low-temperature fluid condensation and flow visualization |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108645886A (en) * | 2018-05-31 | 2018-10-12 | 中国科学院理化技术研究所 | Experimental device for low-temperature fluid condensation and flow visualization |
-
2018
- 2018-05-31 CN CN201820834580.8U patent/CN208155913U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108645886A (en) * | 2018-05-31 | 2018-10-12 | 中国科学院理化技术研究所 | Experimental device for low-temperature fluid condensation and flow visualization |
| CN108645886B (en) * | 2018-05-31 | 2024-04-19 | 中国科学院理化技术研究所 | Experimental device for low-temperature fluid condensation and flow visualization |
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