CN110274404A - Bellows self-adjustable J-T refrigerator - Google Patents
Bellows self-adjustable J-T refrigerator Download PDFInfo
- Publication number
- CN110274404A CN110274404A CN201910401781.8A CN201910401781A CN110274404A CN 110274404 A CN110274404 A CN 110274404A CN 201910401781 A CN201910401781 A CN 201910401781A CN 110274404 A CN110274404 A CN 110274404A
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- Prior art keywords
- refrigerator
- bellows
- adjustable
- drive rod
- central tube
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/02—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using Joule-Thompson effect; using vortex effect
Abstract
The invention discloses a kind of bellows self-adjustable J-T refrigerators, comprising: tailstock is set to the bottom end of the bellows self-adjustable J-T refrigerator；For making high pressure gas at normal temperature enter the refrigerator and supporting the refrigerator；Heat exchanger is set on the outside of central tube and on the inside of Dewar cold finger, and for entering in high pressure gas at normal temperature and after throttle orifice decrease temperature and pressure, low-pressure low-temperature air-flow is discharged by heat exchanger fin gap；Central tube is set to the inside of the heat exchanger；Rear side inside the central tube is provided with gas tube, the sealing ribs being arranged among the gas tube and central tube connect, the sealing ribs form sealing inflatable chamber together with the enhancing ring, bellows, drive rod that are set to central tube inner front side, needle is connected at the top of the drive rod, needle rear is provided with the valve body with throttle orifice, and the needle position is corresponding with the throttling hole site.
Description
Technical field
The present invention relates to field of low-temperature refrigeration more particularly to a kind of bellows self-adjustable J-T refrigerators.
Background technique
J-T refrigerator is compact-sized with its, small in size, light weight, starts the advantages that fast, is widely used to infrared system
System.According to whether there is or not self-adjusting mechanism, J-T refrigerator can be divided into fast starting formula and self-adjustable two major classes, and fast starting formula is direct-injection
Refrigerator is chiefly used in unit infrared detector module, usually requires that the starting time of refrigeration system is 3S~5S.For with InSb
With the second generation detector module on focal plane of infrared ray based on HgCdTe, the fast starting refrigerator and self-adjustable refrigerator of direct-injection
It compares, lower temperature is not only not achieved, but also it is longer to reach the time spent by same temperature.Therefore, second generation focal plane
Detector assembly generallys use self-adjustable refrigerator.Self-adjustable refrigerator generallys use bellows as regulating element, according to quilt
The fluctuation flow automatic regulation of cooling component temperature.
Currently, domestic bellows self-adjustable J-T refrigerator technology is mature on the whole, small lot production can be carried out.In
For wave 320 × 256HgCdTe detector module on focal plane of infrared ray, when 80K, the refrigerator room temperature starting time can guarantee
Within 40S.With the fast development of domestic weaponry level, complete machine user is more next to the index request of infrared detector module
It is higher.Wherein, the requirement to the refrigerator starting time reaches: room temperature starts time < 25S (80K), high startup temperature time < 30S
(80K).Therefore, during completing the present invention, inventor is had found in the case where Dewar structure has been fixed, to bellows
Type J-T refrigerator carries out structure improvement, reduces the thermal mass of refrigerator itself, increases heat exchange, is the approach for improving the starting time
One of.
Bellows J-T refrigerator various structures, airing form are divided into preceding inflation and rear inflation, and bellows has unicast line
Point of pipe bi-bellow, heat exchanger are divided into single layer double-deck, and there are prefix type and postposition type in position of the bellows in central tube
Point, inflatable chamber is divided into inflation and outer inflation etc. in bellows.The bellows self-adjustable J-T of domestic existing product freezes
Device generally uses single layer heat-exchange tube, and 0.1~0.15mm of throttle diameter, refrigerator thermal mass itself is big, while heat exchange efficiency is not
Height, the starting time is slow, increasingly developed weaponry level is not able to satisfy, even if being improved bleed pressure by 20Mpa to 40Mpa
It is still little to the contribution of starting time.
Due to the specific use of J-T refrigerator, it is desirable that refrigerator has the characteristics such as vibration resistance, impact resistance.Bellows
Commonly there is poor reliability in self-adjustable J-T refrigerator, as bellows damages phenomenon after there is vibration；After multiple switching machine
Flow changes phenomenon etc..Wherein there is the problem of bellows itself, it is deeper to see such as bellows material, technological problems,
Equally exist design problem.
In refrigerator self-regulating process, bellows drives transmission mechanism to move reciprocatingly, and realizes control of the needle to flow
System.The self-adjusting mechanism of refrigerator is the unique motion component of J-T refrigerator, is easily broken down in refrigerator Reliability Check
Part.Since the structure of refrigerator limits, the self-adjusting mechanism of refrigerator is cantilever beam structure, and bellows is easy in compression process
Bending, causes ripple tube capacity in vibration processes easy to damage, and drive rod does not have radial positioning, and needle is easy from throttling in vibration processes
It is run out of in hole or needle point damages.In improving refrigerator reliability design, transmission mechanism not only can guarantee axial movement, but also energy
The radial movement of limitation is the difficult point of design.
Summary of the invention
The embodiment of the present invention provides a kind of bellows self-adjustable J-T refrigerator, in the prior art above-mentioned to solve
Technical problem.
The embodiment of the present invention provides a kind of bellows self-adjustable J-T refrigerator, comprising:
Tailstock is set to the bottom end of the bellows self-adjustable J-T refrigerator；For making high pressure gas at normal temperature enter institute
It states refrigerator and supports the refrigerator；
Heat exchanger is set on the outside of central tube and on the inside of Dewar cold finger, in the entrance of high pressure gas at normal temperature and warp knuckle
After discharge orifice decrease temperature and pressure, low-pressure low-temperature air-flow is discharged by heat exchanger fin gap；
Central tube is set to the inside of the heat exchanger；Rear side inside the central tube is provided with gas tube, described
The sealing ribs being arranged among gas tube and central tube connect, the sealing ribs be set to central tube inner front side enhancing ring,
Bellows, drive rod form sealing inflatable chamber together, and needle is connected at the top of the drive rod, and needle rear is provided with section
The valve body of discharge orifice, the needle position are corresponding with the throttling hole site.
Preferably, it is cased with lead ring in the bellows bottom end, during bellows scales, lead ring is oriented to position in sealing ribs
Middle reciprocating motion.
Preferably, the drive rod top is welded with annular shelves ring, the annular shelves ring and enhancing ring bottom in inflation
Position is in contact.
Preferably, the drive rod top is provided with diaphragm spring, and outer end and the enhancing boxing of the diaphragm spring connect, in
Between with drive rod weld, for guaranteeing the axial reciprocating of drive rod, and limit moving radially for drive rod.
Preferably, the isolation for avoiding low temperature reflux gas from being discharged directly to external environment is provided in the heat exchanger
Line.
Preferably, the heat exchanger is the double-deck rib-type heat exchanger of intersecting structure.
Preferably, the lead ring both ends are provided with convex barrier, for preventing in the refrigerator course of work lead ring in ripple
It is slided on pipe.
Preferably, the central tube uses thin-wall pipes, and the drive rod uses thin-wall pipes；Enhance ring, central tube, biography
Lever, sealing ribs, gas tube use corronil material；The drive rod material is corronil；The valve body is stainless steel
Or cobalt alloy material.
Preferably, the diaphragm spring is spiral in shape, and thickness is between 0.5mm~1.5mm.
Preferably, the tailstock is stainless steel material, and air inlet is using conical surface seal and filled with the mistake compressed by snap ring
Filter disc, high pressure gas at normal temperature divide two-way to enter heat exchanger after filter.
Using the embodiment of the present invention, the knot that a kind of high reliability starts bellows self-adjustable J-T refrigerator fastly is provided
Structure, structure is compact to design, and processing step is few, and refrigerator thermal mass itself is small, and heat exchange efficiency is high, and the starting time is fast, reliability
Height, it is at low cost.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can
It is clearer and more comprehensible, the followings are specific embodiments of the present invention.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 is the refrigerator and Dewar cold finger installation diagram of the embodiment of the present invention；
Fig. 2 is the bellows structure design diagram of the embodiment of the present invention；
Fig. 3 is the valve body structure design diagram of the embodiment of the present invention；
Fig. 4 is the drive rod structural schematic diagram of the embodiment of the present invention；
Fig. 5 is the tailstock structure schematic diagram of the embodiment of the present invention；
Fig. 6 is the single heat converter structure figure of the embodiment of the present invention；
Fig. 7 is the position diaphragm spring design drawing of the embodiment of the present invention.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.
Bellows self-adjustable J-T refrigerator working principle is described in detail first: high pressure gas is from pipeline air inlet
Mouth enters refrigerator tailstock, reaches throttle orifice, high pressure gas rapid spatial expansion after small holes, pressure urgency by heat-exchange tube
It falls sharply low, according to Joule-Thomson effect principle, the gas after pressure drop substantially cools down, then cooled detector chip passes through heat
The discharge of exchanger outer gap.Gas is cooled rapidly in inflatable chamber simultaneously, or even liquefaction causes the pressure reduction of inflatable chamber, from
And break the balance of bellows initial compressed state, and bellows does stretching motion, and drive transmission mechanism mobile to refrigerator tail portion,
Protrude into needle needle point in throttle orifice, throttle orifice, which becomes smaller, is even switched off to control the consumption of gas.After temperature increases, fill
Gas pressure in air cavity increases, and compresses bellows, and needle removes from throttle orifice, opens throttle orifice, realizes repeatedly
To the self-aligning action of gas flow.
Change throttle diameter, enhance heat exchanger heat exchange efficiency, reducing refrigerator thermal mass itself is fast starting refrigerator
Structure design main thought.(fluid energy equation and throttle effect thermodynamical equilibrium equation) is calculated by thermodynamic argument and is tested
As a result, obtaining some key parameters of throttling refrigerator, and then carry out detailed structure design.Using the double-deck rib-type heat exchange
Device carries out Optimal Structure Designing by means such as three-dimensional modeling, finite element analyses in the case where heat exchanger assignment is determined,
Complete the overall construction design of fast starting refrigerator.In order to improve refrigerator functional reliability, limits the radial of self-adjusting mechanism and move
It is dynamic, while not influencing to move axially, self-adjusting mechanism is increased and is positioned at two, is that the positioning of bellows bottom end and drive rod are fixed respectively
Position.
The embodiment of the present invention provides a kind of bellows self-adjustable J-T refrigerator, comprising:
Tailstock is set to the bottom end of the bellows self-adjustable J-T refrigerator；For making high pressure gas at normal temperature enter institute
It states refrigerator and supports the refrigerator；
Heat exchanger is set on the outside of central tube and on the inside of Dewar cold finger, in the entrance of high pressure gas at normal temperature and warp knuckle
After discharge orifice decrease temperature and pressure, low-pressure low-temperature air-flow is discharged by heat exchanger fin gap；
Central tube is set to the inside of the heat exchanger；Rear side inside the central tube is provided with gas tube, described
The sealing ribs being arranged among gas tube and central tube connect, the sealing ribs be set to central tube inner front side enhancing ring,
Bellows, drive rod form sealing inflatable chamber together, and needle is connected at the top of the drive rod, and needle rear is provided with section
The valve body of discharge orifice, the needle position are corresponding with the throttling hole site.
It is cased with lead ring in the bellows bottom end, during bellows scales, lead ring is reciprocal in sealing ribs guiding position
Movement.
The drive rod top is welded with annular shelves ring, and in inflation, the annular shelves ring connects with enhancing ring bottom position
Touching.
The drive rod top is provided with diaphragm spring, and the outer end of the diaphragm spring and enhancing boxing connect, intermediate and biography
Lever welding, for guaranteeing the axial reciprocating of drive rod, and limits moving radially for drive rod.
The shielding wire for avoiding low temperature reflux gas from being discharged directly to external environment is provided in the heat exchanger.
The heat exchanger is the double-deck rib-type heat exchanger of intersecting structure.
The lead ring both ends are provided with convex barrier, for preventing lead ring in the refrigerator course of work sliding on bellows
It is dynamic.
The central tube uses thin-wall pipes, and the drive rod uses thin-wall pipes；Enhance ring, central tube, drive rod, close
Seal rib, gas tube uses corronil material；The drive rod material is corronil；The valve body is stainless steel or cobalt alloy
Material.
The diaphragm spring is spiral in shape, and thickness is between 0.5mm~1.5mm.
The tailstock is stainless steel material, and air inlet is high using conical surface seal and filled with the filter compressed by snap ring
Normal pressure and temperature gas divides two-way to enter heat exchanger after filter.
It is specifically described below.
A) orifice design: according to experimental analysis: refrigerator induction air flow ratio is identical, increases charge flow rate, is freezing
The heat taken away before device self-regulated increases, and can greatly reduce temperature fall time, this can be realized by increase throttle diameter.
B) heat exchanger designs: coiling is staggeredly superimposed using the double-deck rib-type heat-exchange tube, avoids low temperature using shielding wire
Reflux gas is discharged directly to external environment, guarantees that high-temperature gas sufficiently exchanges heat in low temperature reflux gas and pipe.Due to inlet air flow
The increase of amount, reflux airflow flow are also increase accordingly, and using the double-deck heat exchanger, heat exchange not only can be enhanced, moreover it is possible to reduce back
Flow resistance power expands throttling working medium sufficiently.Meanwhile Dewar cold finger internal diameter is certain, refrigerator outer diameter is certain, using the double-deck heat exchange
Device, inflatable chamber outer diameter are reduced accordingly, and refrigerator thermal mass is accordingly reduced, and can equally reduce the starting time.
Specifically, heat exchanger is formed using the double-deck heat-exchange tube intersecting coiling.Increase reflux resistance using shielding wire
Power.Heat exchanger is made of capillary and copper belt, and copper belt as shown in Figure 6 is according to designed screw pitch uniform winding stainless
On steel pipe, then the two is closely linked by way of plating.Capillary is high pressure resistant stainless steel tube or cupro-nickel pipe.
C) Element Designs such as central tube: the double-deck heat exchanger, which has determined later center pipe size, to be determined, and central tube uses thin-walled
Tubing, thermal mass is small, and price is low.The parts such as the enhancing ring of refrigerator, bellows, tailstock, drive rod are done according to core pipe size
Relevant structure design.In order to reduce refrigerator thermal mass itself, guarantee that each part is all made of thin-walled knot while reliability
Structure.
Specifically, central tube uses tubing, and front end connects with enhancing boxing, and rear end and tailstock weld, internal to weld with sealing ribs
It connects.Central tube, sealing ribs, bellows, drive rod form inflatable chamber, and the gas working medium of certain pressure is filled in inside.Gas tube is being made
Cooler tail portion, inflation welding hub disk is in refrigerator tail end.Enhance ring, central tube, drive rod, sealing ribs, gas tube using thermally conductive
The good corronil material of performance or the better alloy material of other heating conductions.
D) airing form: refrigerator uses rear inflatable, reduces refrigerator cold end thermal mass；The outer airing form of bellows,
Refrigerator temperature-sensitive is sensitive, and temperature-controlled precision is high.Welded seal rib among central tube forms together with enhancing ring, bellows, drive rod
Sealed chamber, i.e. inflatable chamber.After filling certain pressure gas working medium into inflatable chamber from gas tube, gas tube, disk and refrigeration are sealed
Device tail portion.
E) self-adjusting mechanism designs: self-regulating structure includes bellows, and drive rod is driven curved bar, needle.Bellows structure is as schemed
Shown in 2, drive rod uses thin-wall pipes, welds annular shelves ring above.
F) reliability Position Design is improved:
The positioning of bellows bottom end: covering upper lead ring in bellows bottom end, seal rib structure such as Fig. 1, during bellows scales,
Lead ring moves back and forth in sealing ribs, guarantees bellows reliability in the refrigerator course of work.
Drive rod positioning: increase diaphragm spring on drive rod top, shape is as shown in Figure 7.The radial rigidity of diaphragm spring
It is far longer than axial rigidity, guarantees the axial reciprocating of drive rod, limits moving radially for drive rod.Self-adjusting mechanism positions at two,
Making the self-adjusting mechanism of refrigerator can only drive needle to move reciprocatingly, so as to greatly improve the functional reliability of refrigerator.
In embodiments of the present invention, self-adjusting mechanism: the parts such as bellows, drive rod, valve body, needle, lead ring, diaphragm spring
Form refrigerator self-adjusting mechanism.Bellows is nickel alloy by electrotyping forming, and structure is as shown in Figure 2.Drive rod is outer shaped like Fig. 4 institute
Show, annular shelves ring can be welded by tubing and be composed, integrated molding can also be machined, due to the slim-lined construction of drive rod,
Machine add mode is difficult holes drilled through, therefore mach drive rod thermal mass can be more relatively large, and drive rod material is corronil.Valve
Body is stainless steel material, and both ends and heat-exchange tube weld.Needle material is stainless steel or the higher cobalt alloy of hardness.
Lead ring is covered in bellows bottom end, and lead ring both ends scolding tin convex barrier prevents lead ring in the refrigerator course of work from existing
It is slided on bellows.Material selection polytetrafluoro, contacts with sealing ribs and contacts for line, reducing friction resistance.The refrigerator course of work
In scale with bellows, lead ring slides at sealing ribs guiding position.The cooperation at lead ring and sealing ribs guiding position is public by part
Difference and surface roughness guarantee, vibrate in the course of work, due to the effect of lead ring, transmission mechanism is no longer cantilever beam structure, wave
Line pipe will not be bent, each ripple uniform force, and reliability is reinforced.
Diaphragm spring selects spiral in shape as shown in Figure 7, and thickness can be depending on intensity and rigidity requirement, it is proposed that thickness
Between 0.5mm~1.5mm.Diaphragm spring outer end connects with enhancing boxing, intermediate to weld with drive rod.Due to diaphragm spring radial direction
Rigidity is far longer than axial rigidity, can not only guarantee the axially reciprocating of needle in the refrigerator course of work, but also can prevent
The radial displacement of needle effectively raises the functional reliability and environmental suitability of refrigerator.
Tail portion filtering: tailstock does not have thermally conductive requirement to select stainless steel material.Tailstock intake section is filled with filter, uses snap ring
It compresses, as shown in Figure 5.Refrigerator filter is using stainless steel metal braiding silk screen or stainless steel metal sintering manufacture, filtering essence
3 μm~10 μm of degree.Air inlet uses conical surface seal, and high pressure gas divides two-way to enter heat-exchange tube after filter.
The embodiment of the present invention has the beneficial effect that:
The cooling activation time is 10s faster than single layer heat-exchange tube.Structure J-T refrigerator is compact-sized, and thermal mass is low, cost
Low, starting is fast, and temperature control effect is good, high reliablity, can be applied to various focal plane detection device assemblies.This structure bellows at home
It is with the obvious advantage in type J-T refrigerator.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of bellows self-adjustable J-T refrigerator characterized by comprising
Tailstock is set to the bottom end of the bellows self-adjustable J-T refrigerator；For making high pressure gas at normal temperature enter the system
Cooler and the support refrigerator；
Heat exchanger is set on the outside of central tube and on the inside of Dewar cold finger, for entering in high pressure gas at normal temperature and through throttle orifice
After decrease temperature and pressure, low-pressure low-temperature air-flow is discharged by heat exchanger fin gap；
Central tube is set to the inside of the heat exchanger；Rear side inside the central tube is provided with gas tube, the inflation
It manages and is connect with the sealing ribs being arranged among central tube, the sealing ribs and enhancing ring, the ripple for being set to central tube inner front side
Pipe, drive rod form sealing inflatable chamber together, are connected with needle at the top of the drive rod, needle rear is provided with throttle orifice
Valve body, the needle position is corresponding with the throttling hole site.
2. bellows self-adjustable J-T refrigerator as described in claim 1, which is characterized in that covered in the bellows bottom end
During having lead ring, bellows to scale, lead ring moves back and forth in sealing ribs guiding position.
3. bellows self-adjustable J-T refrigerator as described in claim 1, which is characterized in that the drive rod top welding
There is annular shelves ring, the annular shelves ring is in contact with enhancing ring bottom position in inflation.
4. bellows self-adjustable J-T refrigerator as described in claim 1, which is characterized in that the drive rod top setting
There is diaphragm spring, outer end and the enhancing boxing of the diaphragm spring connect, and it is intermediate to be welded with drive rod, for guaranteeing the axis of drive rod
To reciprocal, and limit moving radially for drive rod.
5. bellows self-adjustable J-T refrigerator as described in claim 1, which is characterized in that be arranged in the heat exchanger
There is the shielding wire for avoiding low temperature reflux gas from being discharged directly to external environment.
6. bellows self-adjustable J-T refrigerator as described in claim 1, which is characterized in that the heat exchanger is staggeredly
The double-deck rib-type heat exchanger of stepped construction.
7. bellows self-adjustable J-T refrigerator as described in claim 1, which is characterized in that the lead ring both ends are provided with
Convex barrier, for preventing lead ring in the refrigerator course of work from sliding on bellows.
8. bellows self-adjustable J-T refrigerator as described in claim 1, which is characterized in that the central tube uses thin-walled
Tubing, the drive rod use thin-wall pipes；Enhance ring, central tube, drive rod, sealing ribs, gas tube and uses corronil material
Material；The drive rod material is corronil；The valve body is stainless steel or cobalt alloy material.
9. bellows self-adjustable J-T refrigerator as claimed in claim 4, which is characterized in that the diaphragm spring is spiral
Shape shape, thickness is between 0.5mm~1.5mm.
10. bellows self-adjustable J-T refrigerator as described in claim 1, which is characterized in that the tailstock is stainless steel
Material, for air inlet using conical surface seal and filled with the filter compressed by snap ring, high pressure gas at normal temperature divides two-way after filter
Into heat exchanger.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910401781.8A CN110274404A (en) | 2019-05-15 | 2019-05-15 | Bellows self-adjustable J-T refrigerator |
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| CN201910401781.8A CN110274404A (en) | 2019-05-15 | 2019-05-15 | Bellows self-adjustable J-T refrigerator |
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Cited By (7)
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| CN110470068A (en) * | 2019-08-22 | 2019-11-19 | 上海理工大学 | Multistage porous type microchannel throttling refrigerator |
| CN111536713A (en) * | 2020-04-02 | 2020-08-14 | 武汉高芯科技有限公司 | Throttling refrigerator and detector capable of realizing active temperature control and quick refrigeration |
| CN111998567A (en) * | 2020-08-14 | 2020-11-27 | 中国电子科技集团公司第十一研究所 | Active control type self-adjusting throttling refrigerator |
| CN112097425A (en) * | 2020-08-05 | 2020-12-18 | 武汉高芯科技有限公司 | Throttling refrigerator and infrared detector |
| CN113108501A (en) * | 2021-03-23 | 2021-07-13 | 武汉高芯科技有限公司 | Throttling refrigerator for flow regulation and flow self-regulating method thereof |
| CN113418726A (en) * | 2021-05-25 | 2021-09-21 | 中国电子科技集团公司第十一研究所 | Flow testing device for refrigerator |
| KR102536901B1 (en) * | 2023-01-05 | 2023-05-26 | 국방과학연구소 | Joule-Thomson Cryocooler that can secure a stable flow path |
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| CN111536713A (en) * | 2020-04-02 | 2020-08-14 | 武汉高芯科技有限公司 | Throttling refrigerator and detector capable of realizing active temperature control and quick refrigeration |
| CN112097425A (en) * | 2020-08-05 | 2020-12-18 | 武汉高芯科技有限公司 | Throttling refrigerator and infrared detector |
| CN111998567A (en) * | 2020-08-14 | 2020-11-27 | 中国电子科技集团公司第十一研究所 | Active control type self-adjusting throttling refrigerator |
| CN111998567B (en) * | 2020-08-14 | 2022-03-11 | 中国电子科技集团公司第十一研究所 | Active control type self-adjusting throttling refrigerator |
| CN113108501A (en) * | 2021-03-23 | 2021-07-13 | 武汉高芯科技有限公司 | Throttling refrigerator for flow regulation and flow self-regulating method thereof |
| CN113418726A (en) * | 2021-05-25 | 2021-09-21 | 中国电子科技集团公司第十一研究所 | Flow testing device for refrigerator |
| CN113418726B (en) * | 2021-05-25 | 2023-03-03 | 中国电子科技集团公司第十一研究所 | Flow testing device for refrigerator |
| KR102536901B1 (en) * | 2023-01-05 | 2023-05-26 | 국방과학연구소 | Joule-Thomson Cryocooler that can secure a stable flow path |
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Application publication date: 20190924 |