CN106766315B - There are two the inferior throttling refrigerators of miniature Han Consulting of throttle orifice for a kind of tool - Google Patents
There are two the inferior throttling refrigerators of miniature Han Consulting of throttle orifice for a kind of tool Download PDFInfo
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- CN106766315B CN106766315B CN201611009352.9A CN201611009352A CN106766315B CN 106766315 B CN106766315 B CN 106766315B CN 201611009352 A CN201611009352 A CN 201611009352A CN 106766315 B CN106766315 B CN 106766315B
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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
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/37—Capillary tubes
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Lift Valve (AREA)
Abstract
The present invention discloses a kind of throttling refrigerator that tool is inferior there are two the miniature Han Consulting of throttle orifice, by high pressure admission interface, outer mandrel, the inferior Recuperative heat exchanger of Han Consulting (gilled tube), throttle valve, inner spindle, flow regulator and throttling needle composition.Unlike traditional inferior throttling refrigerator of miniature Han Consulting, there are two throttle valve and two sections of gilled tubes for the inferior throttling refrigerator tool of miniature Han Consulting disclosed in this invention, and two throttle valves are connect with one section of gilled tube respectively, two sections of gilled tubes can synchronize double helix and be wound on outer mandrel, it can also build up and be wound on outer mandrel, then all be welded in intake interface delivery outlet.Lateral stress when driving throttling needle to adjust throttle flow rate this invention removes flow regulator, improve the stability of throttle valve work, simultaneously under conditions of not increasing gilled tube size and orifice diameter, flow of refrigerating working medium is increased, effectively shortens temperature fall time.
Description
Technical field
The present invention relates to a kind of miniature inferior throttling refrigerator of Han Consulting, being specifically related to a kind of tool, there are two the miniature of throttle orifice
The inferior throttling refrigerator of Han Consulting.
Background technique
The thermal capacitance of the inferior throttling refrigerator of Han Consulting is small, and heat transfer effect is strong, is mainly used in fast-refrigerating occasion, such as infrared system
The cooling of infrared detector mostly uses the inferior throttling refrigerator of miniature Han Consulting in guiding systems.
Summary of the invention
Two throttling needles 2 are driven to adjust respectively simultaneously by a flow regulator 6 the object of the present invention is to provide a kind of
From throttle valve the inferior throttling refrigerator of the miniature Han Consulting of self-adjustable, it is characterized in that: eliminate lateral adjustment stress, improve system
Cold job stability；Also, do not increase gilled tube 5 size and throttle valve orifice diameter under conditions of, increase system
Cold working medium flow, effectively shortens the refrigeration cool-down time.
Present invention tool there are two the inferior throttling refrigerator of the miniature Han Consulting of self-adjustable of throttle orifice is completed by lower reason structure:
The inferior throttling refrigerator of the miniature Han Consulting of self-adjustable is made of Dewar pipe, outer core components and refrigeration part, Dewar pipe be one be provided with it is recessed
The sandwich-like pipe of shaped opening, the outer layer of Dewar pipe are Dewar outer tube (13), and the internal layer of Dewar pipe is Dewar inner tube (10), outside Dewar
A closed sandwich-like pipe, the inlet suction port (9) of outer core components are interconnected to constitute between pipe (13) and Dewar inner tube (10)
It is mounted on the concavity opening of sandwich-like pipe, outer core components are by inlet suction port (9), outer mandrel (8), inner spindle (7), forward flange
(11) it is constituted with flow regulator (6), two gilled tubes that refrigeration part is distributed by a needle seat (3) and positional symmetry
(5), two throttle valve seats (1) and two throttling needles (2) collectively form；A flow regulator (6) in outer core components is same
When control refrigeration part in positional symmetry distribution two throttling needles (2), positional symmetry distribution two throttling needles (2) respectively
Be self-regulated a throttle valve.
It is opened on the forward flange (11) of outer core component in the mounting hole being distributed there are two positional symmetry, in two mounting holes
Two throttle valve seats (1) are respectively charged into, then after two throttle valve seats (1) are inserted into one end of two gilled tubes (5) respectively, special
By two gilled tubes (5) simultaneously around on outer mandrel (8) and fixed on winding equipment；Then respectively by two gilled tubes
(5) it in two ventholes of other end insertion inlet suction port (9) and welds, completes two throttle valve seats (1) and two fins
Manage the fixation and installation of (5) on outer core components.
Described two gilled tubes (5) can synchronize double helix and be wound on outer mandrel (8), can also build up and be wound on outer mandrel
(8) on, other end insertion inlet suction port (9) of two gilled tubes (5) is then all welded in intake interface delivery outlet.
The flow of forward flange (11) outside is extended in the intermediate throughholes of the needle seat (3) and flow regulator (6) to adjust
Bar (4) co-axially align is simultaneously fitted into inner spindle (7), then is respectively put into throttling needle in two mounting holes of needle seat (3)
(2), and make two throttlings needle (2) respectively with the throttle orifice co-axially align on two throttle valve seats (1), be then welded and fixed,
Complete the installation of needle seat (3) and two throttlings needle (2) on flow control rod (4).
The composition of outer core component and production are identical as the miniature inferior throttling refrigerator of Han Consulting of tradition.
The present invention is from flow regulator 6 while the symmetrical two throttling needles 2 of activation point are saved to corresponding two
It flows and is moved in the throttle orifice of valve seat 1, achieve the purpose that control throttling refrigerator working medium flow.Due to what is sprayed in two throttle orifices
High-pressure working medium will all generate pressure, and the pressure generated when injection identical due to high-pressure working medium pressure on respective throttling needle 2
Power is also identical, therefore only when flow control rod 4 drives mobile to throttle orifice positioned at two throttling needles 2 of two sides positional symmetry
Opposite force is needed, a traditional flow regulator is avoided and drives throttle orifice of the throttling needle on a throttle valve seat
Opposite force is not only needed when mobile, lateral force is needed also to offset the torque that throttling needle and flow control rod do not generate coaxially, changes
It has been apt to stability when throttling refrigerator self-regulated work；Simultaneously in the section of the geometric dimension and throttle valve seat 1 that do not increase gilled tube 5
Under conditions of the diameter of flowing hole, high-pressure working medium flow increases one times when throttling refrigerator starts, and improves refrigeration work consumption, effectively contracts
Short temperature fall time.
Present invention has the advantages that eliminating laterally answering when flow regulator driving throttling needle adjusts throttle flow rate
Power improves the stability of throttle valve work, while under conditions of not increasing gilled tube size and orifice diameter, increasing system
Cold working medium flow, effectively shortens temperature fall time.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the schematic diagram of outer core components of the invention；
Fig. 3 is the partial enlargement diagram of refrigeration part of the invention (comprising outer core components).
In figure, 1-throttle valve seat, 2-throttling needles, 3-needle seats, 4-flow control rods, 5-gilled tubes, 6-streams
Measure adjuster, 7-inner spindles, 8-outer mandrels, 9-inlet suction ports, 10-Dewar inner tubes, 11-forward flanges, 12-expansion chambers.
13-Dewar outer tubes；14-high-pressure working medium entrances, 15-air inlets.
Specific embodiment
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawings and embodiments:
The inferior throttling refrigerator of the miniature Han Consulting of self-adjustable provided by the invention is made of outer core components and refrigeration part.Its China and foreign countries
Core components are made of inlet suction port 9, outer mandrel 8, inner spindle 7, forward flange 11 and flow regulator 6；Refrigeration part is by two ribs
Piece pipe (also known as: the inferior heat exchanger of Han Consulting) 5, two throttle valve seats, 1, two throttling needle 2 and needle seat 3 form.
The composition of outer core components and production are identical as the miniature inferior throttling refrigerator of Han Consulting of tradition.Outer core components complete
Afterwards, two throttle valve seats 1 are respectively charged into two mounting holes on the forward flange 11 of outer core components, then by two gilled tubes 5
One end be inserted into two throttle valve seats 1 respectively after, on dedicated winding equipment by two gilled tubes 5 simultaneously around in outer mandrel 8
It goes up and fixes；Then the other end of two gilled tubes 5 is inserted into two ventholes of inlet suction port 9 and is welded respectively, completed
The installation of two throttle valve seats 1 and two gilled tubes 5 on outer core components.It will be on the interstitial hole of needle seat 3 and flow regulator 6
4 co-axially align of flow control rod that stretches out in outside forward flange 11 is simultaneously packed into, then is respectively put into two mounting holes of needle seat 3
Throttle needle 2, and makes two throttling needles 2 respectively with the throttle orifice co-axially align on two throttle valve seats 1, and then welding is solid
It is fixed, complete the installation of needle seat 3 and two throttling needles 2 on flow control rod 4.
Before throttling refrigerator work good cooperation must be formed with the Dewar with vacuum insulation performance.Common method
It is that throttling refrigerator is inserted into Dewar inner tube 10 and is connected and fixed with Dewar by screw or other modes.High-pressure working medium is through air inlet
After connector 9 enters throttling refrigerator, while respectively enteing in the capillaries of two gilled tubes 5 and through respective throttle valve seat 1
It after throttle orifice throttling, is sprayed in expansion chamber 12, generates throttling refrigeration effect.Low temperature, low pressure working fluid after throttling is in Dewar
It is flowed in the annular gap that two gilled tubes 5 are formed between 10 inner wall of pipe and outer mandrel 8, and in completion and two gilled tubes 5
The heat exchange of high-pressure working medium, the temperature before making high-pressure working medium throttle constantly reduce, until the boiling temperature of working medium completes refrigeration
Start-up course.Later since the cryogenic temperature displacement sensing element in flow regulator 6 reaches sensitive temperature point, flow is adjusted
Device 6 will drive flow control rod 4 to shrink, and drive two throttling needles 2 being located on flow control rod 4 simultaneously to two throttle valves
It is moved in the throttle orifice of seat 1, so that the high-pressure working medium discharge area of throttle orifice reduces, thus the flow of reduced high-pressure working medium,
Throttling refrigerator enters self-regulated working condition.
Present invention coiling section outside the capillary long tube that caliber is 0.5~1.0 millimeter, wall thickness is 0.1~0.2 millimeter is square
After the filament of shape, then the pipe is wound on mandrel and forms spiral coil and fixation, capillary one end and high pressure admission connector connect
It connects as high-pressure working medium entrance, the other end is welded with the restricting element of throttling pore, that is, it is inferior to constitute simplest miniature Han Consulting
Throttling refrigerator.By miniature Han Consulting inferior throttling refrigerator insertion Dewar inner tube and formed it is good fit, high-pressure working medium from high pressure into
After gas connector introduces, the miniature inferior throttling refrigerator of Han Consulting is started to work, and high-pressure working medium flows in capillary long tube, and low pressure working fluid exists
It flows back in annular gap between Dewar inside pipe wall and mandrel, forms longer heat exchanger channels, heat transfer effect is strong, usually from starting to
Reach the time of minimum temperature less than 1 minute, or even is as short as the several seconds.
In the above-mentioned inferior throttling refrigerator of miniature Han Consulting, increases cryogenic temperature and be displaced sensing element, usually temperature is remembered
Recall alloy or encapsulation bellows etc., as flow regulator, drives the throttling needle above throttle orifice to section afterwards in place in refrigeration
Discharge orifice is mobile, reduces high-pressure outlet area, to reduce working medium flow.The inferior throttling refrigeration of miniature Han Consulting made in this way
Device is known as the inferior throttling refrigerator of the miniature Han Consulting of self-adjustable.
Working mechanism: after throttling refrigerator is inserted into Dewar inner tube 10, and intake interface 9 is correctly connect with high-pressure air source,
High-pressure air source is opened, throttling refrigerator enters starting state.High-pressure working medium respectively enters two after the switching of intake interface 9
It in the capillary of gilled tube 5, is sprayed in expansion chamber 12 after the throttling of the throttle orifice of respective throttle valve seat 1, generates throttling system
Cold effect；What two gilled tubes 5 of low temperature, low pressure working fluid between 10 inner wall of Dewar inner tube and outer mandrel 8 after throttling were formed
It is flowed in annular gap, completes the heat exchange of the high-pressure working medium in the capillary with two gilled tubes 5, before so that high-pressure working medium is throttled
Temperature constantly reduce, reach itself boiling temperature after high-pressure working medium throttling, complete the start-up course of throttling refrigerator.
Later since the cryogenic temperature displacement sensing element in flow regulator 6 reaches sensitive temperature point, flow regulator 6
It starts to work, shrinks flow control rod 4, drive two throttling needles 2 on needle seat 3 while on two throttle valve seats 1
Respective throttle orifice is mobile, so that the high-pressure working medium discharge area at throttle orifice reduces, thus the flow of reduced high-pressure working medium,
Refrigeration work consumption is reduced in due course, and throttling refrigerator initially enters self-regulated working condition.
Shrink flow control rod excessively if the temperature in expansion chamber 12 is too low, throttling needle 2 will be too close to section
Discharge orifice and keep high-pressure working medium discharge area too small, cause high-pressure working medium flow too small, be not enough to maintain normal cryogenic temperature, it is swollen
Temperature in swollen chamber 12 will increase, and the temperature movement sensing element temperature in flow regulator 6 is caused also to increase, and flow is adjusted
Reverse operation reduces displacement by device 6, and flow control rod 4 drives two throttling needles 2 on needle seat 3 to leave throttling simultaneously
Hole, so that the high-pressure working medium discharge area at throttle orifice increases, so that the flow of increased high-pressure working medium, improves refrigeration work consumption,
Temperature in expansion chamber 12 reduces again；Above-mentioned two process iterative cycles make throttling refrigerator be in the stable small stream of temperature
Measure working condition, i.e. self-regulated working condition.
After Fig. 1 throttling refrigerator is inserted into Dewar inner tube 10, and intake interface 9 is correctly connect with high-pressure air source, open high
Pressurized air source, throttling refrigerator enter starting state.High-pressure working medium respectively enters two gilled tubes 5 after the switching of intake interface 9
Capillary in, sprayed in expansion chamber 12 after the throttling of the throttle orifice of respective throttle valve seat 1, generate throttling refrigeration effect；
The annular gap that two gilled tubes 5 of low temperature, low pressure working fluid between 10 inner wall of Dewar inner tube and outer mandrel 8 after throttling are formed
The heat exchange of the high-pressure working medium in the capillary with two gilled tubes 5 is completed in middle flowing, and the temperature before making high-pressure working medium throttle is not
It is disconnected to reduce, the boiling temperature of itself is reached after high-pressure working medium throttling, completes the start-up course of throttling refrigerator.
Later since the cryogenic temperature displacement sensing element in flow regulator 6 reaches sensitive temperature point, flow regulator 6
It starts to work, shrinks flow control rod 4, drive two throttling needles 2 on needle seat 3 while on two throttle valve seats 1
Respective throttle orifice is mobile, so that the high-pressure working medium discharge area at throttle orifice reduces, thus the flow of reduced high-pressure working medium,
Refrigeration work consumption is reduced in due course, and throttling refrigerator initially enters self-regulated working condition.
Shrink flow control rod excessively if the temperature in expansion chamber 12 is too low, throttling needle 2 will be too close to section
Discharge orifice and keep high-pressure working medium discharge area too small, cause high-pressure working medium flow too small, be not enough to maintain normal cryogenic temperature, it is swollen
Temperature in swollen chamber 12 will increase, and the temperature movement sensing element temperature in flow regulator 6 is caused also to increase, and flow is adjusted
Reverse operation reduces displacement by device 6, and flow control rod 4 drives two throttling needles 2 on needle seat 3 to leave throttling simultaneously
Hole, so that the high-pressure working medium discharge area at throttle orifice increases, so that the flow of increased high-pressure working medium, improves refrigeration work consumption,
Temperature in expansion chamber 12 reduces again；Above-mentioned two process iterative cycles make throttling refrigerator be in the stable small stream of temperature
Measure working condition, i.e. self-regulated working condition.
Claims (4)
1. there are two the inferior throttling refrigerators of the miniature Han Consulting of self-adjustable of throttle orifice for a kind of tool, it is characterised in that the miniature Han Consulting of self-adjustable
Inferior throttling refrigerator is made of Dewar pipe, outer core components and refrigeration part, and Dewar pipe is the sandwich-like for being provided with concavity opening
Pipe, the outer layer of Dewar pipe are Dewar outer tube (13), and the internal layer of Dewar pipe is Dewar inner tube (10), in Dewar outer tube (13) and Dewar
It is interconnected to constitute a closed sandwich-like pipe between pipe (10), the inlet suction port (9) of outer core components is mounted on sandwich-like pipe
Concavity opening, outer core components are by inlet suction port (9), outer mandrel (8), inner spindle (7), forward flange (11) and flow regulator
(6) it constitutes, two gilled tubes (5), two throttle valve seats (1) that refrigeration part is distributed by a needle seat (3) and positional symmetry
It is collectively formed with two throttling needles (2)；A flow regulator (6) in outer core components controls position in refrigeration part simultaneously
Two symmetrical throttling needles (2), two throttling needles (2), one throttle valve of each self-regulation of positional symmetry distribution.
2. there are two the inferior throttling refrigerator of the miniature Han Consulting of self-adjustable of throttle orifice, features to exist for tool according to claim 1
In being opened on the forward flange of outer core components (11) there are two in the mounting hole of positional symmetry distribution, it is respectively charged into two mounting holes
Two throttle valve seats (1), then after two throttle valve seats (1) are inserted into one end of two gilled tubes (5) respectively, in dedicated coiling
By two gilled tubes (5) simultaneously around on outer mandrel (8) and fixed in equipment；Then respectively by the another of two gilled tubes (5)
It in two ventholes of end insertion inlet suction port (9) and welds, completes two throttle valve seats (1) and two gilled tubes (5) outside
Fixation and installation on core components.
3. there are two the inferior throttling refrigerator of the miniature Han Consulting of self-adjustable of throttle orifice, features for tool according to claim 1 or 2
It is that described two gilled tubes (5) can synchronize double helix and be wound on outer mandrel (8), can also builds up and be wound on outer mandrel (8),
Other end insertion inlet suction port (9) of two gilled tubes (5) is then all welded in intake interface delivery outlet.
4. there are two the inferior throttling refrigerator of the miniature Han Consulting of self-adjustable of throttle orifice, features to exist for tool according to claim 1
In the flow control rod (4) of forward flange (11) outside will be extended on the intermediate throughholes of the needle seat (3) and flow regulator (6)
Co-axially align is simultaneously fitted into inner spindle (7), then throttling needle (2) is respectively put into two mounting holes of needle seat (3), and make
Two throttlings needle (2) are then welded and fixed respectively with the throttle orifice co-axially align on two throttle valve seats (1), complete needle
The installation of seat (3) and two throttlings needle (2) on flow control rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611009352.9A CN106766315B (en) | 2016-11-16 | 2016-11-16 | There are two the inferior throttling refrigerators of miniature Han Consulting of throttle orifice for a kind of tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611009352.9A CN106766315B (en) | 2016-11-16 | 2016-11-16 | There are two the inferior throttling refrigerators of miniature Han Consulting of throttle orifice for a kind of tool |
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| CN106766315A CN106766315A (en) | 2017-05-31 |
| CN106766315B true CN106766315B (en) | 2019-06-14 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109976415A (en) * | 2017-12-27 | 2019-07-05 | 中国科学院长春光学精密机械与物理研究所 | A kind of temperature range control system of infrared optical system |
| CN110195995B (en) * | 2019-05-15 | 2020-12-18 | 中国电子科技集团公司第十一研究所 | Self-adjusting mechanism of refrigerator, assembling method of self-adjusting mechanism and self-adjusting J-T refrigerator |
| CN110142546B (en) * | 2019-05-15 | 2021-04-30 | 中国电子科技集团公司第十一研究所 | Corrugated pipe type J-T refrigerator self-adjusting mechanism assembling clamp using diaphragm spring |
| CN112072606B (en) * | 2020-07-31 | 2021-12-07 | 深圳供电局有限公司 | Three-phase coaxial superconducting cable terminal system and assembling method thereof |
| 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 |
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