CN104406351A - Flexibly lateral bracing device for cold head of refrigerating machine - Google Patents
Flexibly lateral bracing device for cold head of refrigerating machine Download PDFInfo
- Publication number
- CN104406351A CN104406351A CN201410584821.4A CN201410584821A CN104406351A CN 104406351 A CN104406351 A CN 104406351A CN 201410584821 A CN201410584821 A CN 201410584821A CN 104406351 A CN104406351 A CN 104406351A
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- conduction cooling
- cold head
- cooling band
- support
- cold
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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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/003—General constructional features for cooling refrigerating machinery
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention relates to a flexibly lateral bracing device for a cold head of a refrigerating machine. The flexibly lateral bracing device for the cold head of the refrigerating machine is formed by a cold guiding belt (2), a support (3) and nylon ropes (4). One end of the cold guiding belt (2) is connected to the cold head (7) of the refrigerating machine, and the other end of the cold guiding belt (2) is connected with a cooled object (5). The support (3) is placed on the lower end of the cold head (7) of the refrigerating machine, and sleeves outside the cold guiding belt (2) without contacting the cold guiding belt (2). A plurality of through holes (8) are formed in the support (3), one nylon rope (4) penetrates through every two adjacent through holes (8) and is tied together with the cold guiding belt (2). The nylon ropes (4) penetrate through multiple pairs of through holes (8) so as to form multi-directional tying for the cold guiding belt (2). The support (3) is fixed on the cooled object (5).
Description
Technical field
The present invention relates to a kind of device of Conduction At Low Temperature cooling system.
Background technology
Sub-cooled technology is widely used in the every field such as national economy and military project development, and the aspects such as medical science, electric power, scientific experiment and defence and military are goed deep in its application, play increasing effect to nation-building.Conduction At Low Temperature cooling technology is fast-developing, applies more and more general.Cooled object without the need under the condition of cold-producing medium, can be cooled to low temperature (as liquid nitrogen temperature) even lower than liquid helium temperature by refrigeration machine by Conduction cooled technology.
Be transmitted to refrigeration machine in cooling technology to be connected with cooled object by conduction cooling band, absorb the heat energy of cooled object.Conduction cooling band generally adopts the fine copper of high thermal conductivity to make.The conduction cooling bar being easy to bending made by conduction cooling band, then bundled by multiple conduction cooling bar, is connected to the cold head of cooled object and refrigeration machine.According to heat transfer Fourier law, the length of conduction cooling power and conduction cooling band is inversely proportional to, and is directly proportional to the cross-sectional area of conduction cooling band.If cooled object quality is large, or cooled object distance cold head is comparatively far away, needs the cross-sectional area of conduction cooling band larger, thus produces enough cold power.Like this, the weight of conduction cooling band is just larger.
For refrigeration machine, due to hot to the leakage of cold head in order to reduce indoor temperature end when manufacturing, therefore the tube wall connecting the tracheae of cold head and indoor temperature end is very thin, (the such as refrigeration machine of SUMITOMO 415D model under larger lateral external forces, its horizontal maximum operation external force is only 20N) will deform, refrigeration machine normally cannot be worked, even thoroughly damage.But refrigeration machine longitudinally can bear larger external force (the such as refrigeration machine of SUMITOMO 415D model, its longitudinal maximum operation external force is greater than 200N), therefore in the ordinary course of things, refrigeration machine vertical ground is placed, conduction cooling band and cold head joint are also that vertical ground is placed, make the gravity of conduction cooling band parallel with cold head, namely the gravity of conduction cooling band only produces longitudinal pulling force to cold head.Laterally placing the situation of cold head for having to, generally by first conduction cooling band being well placed position, then making it naturally droop, finally connect conduction cooling band, utilize the flexural deformation of conduction cooling band to carry himself gravity like this, thus do not bring horizontal heavy burden to cold head.
But for the cryogenic system needing wide-angle (more than 90 degree) to rotate, its rotation will inevitably make cold head or bear the heavy burden of conduction cooling band when vertical ground, or bears the heavy burden of conduction cooling band when parallel ground.As previously mentioned, if cooled object quality is comparatively large, or distance cold head is far, so just needs the conduction cooling band that quality is very large.Overweight conduction cooling band brings infringement can to the cold head of this rotary cryogenic system.
, the conduction cooling band connecting cold head place must be fixed for this reason, be eliminated conduction cooling band gravity to the cross directional stretch effect of cold head.In order to fixing conduction cooling band, a kind of method is fixed on cooled cryostat container by conduction cooling band, but the huge temperature difference of cold head and low-temperature (low temperature) vessel can bring very large leakage heat; Another kind method is fixed on cooled object by conduction cooling band, and fixture and cold head, cooled object, in same warm area, can not bring leakage heat problem.But by fastening for conduction cooling band with on cooled object, a problem can be brought, be exactly that refrigeration machine is generally anchored on low-temperature (low temperature) vessel, and cooled object is not generally anchored on low-temperature (low temperature) vessel, if there is larger skew in cooled object, so cooled object can drive conduction cooling band fastener to move together, thus also produces very large lateral pull to cold head, and cold head is damaged.
Summary of the invention
The object of the invention is the shortcoming overcoming prior art, propose a kind of refrigeration machine cold head flexible transverse bracing or strutting arrangement.The present invention can offset the lateral pull suffered by Cryo Refrigerator cold head, does not bring extra large thermic load simultaneously, guarantee that refrigeration machine can not be damaged when cooled object generation larger displacement to cold head.
Refrigeration machine cold head flexible transverse bracing or strutting arrangement of the present invention, is made up of conduction cooling band, nylon rope and support.One end of described conduction cooling band is connected to refrigeration machine cold head, and the other end connects cooled object.Cooled object is fixed in low-temperature (low temperature) vessel.Place a stainless support in the lower end of refrigeration machine cold head, this support casing is contained in outside conduction cooling band, does not contact with conduction cooling band.Described support is fixed on cooled object.By nylon rope, support and conduction cooling band are bundled.
Nylon rope is chosen has larger rigidity, the material that namely elastic modelling quantity is very little; Nylon rope can should disconnect under the pulling force that 10kg quality is corresponding, therefore needs the nylon rope selecting suitable thickness in advance.
Support has some through holes along the circumferencial direction of conduction cooling band, and through a nylon rope between every a pair adjacent through-holes, this root nylon rope and conduction cooling band bundle; Like this, multipair through hole, through many nylon ropes, enables conduction cooling band be fixed on multi-direction.
When whole cryogenic system deflects in one direction, because conduction cooling band is the flexible conduction cooling parts that many copper wires or copper strips are made, therefore deformation can be there is due to Action of Gravity Field after conduction cooling belt deflector, thus pulling cold head, but when the colligation of conduction cooling band after nylon rope, nylon rope absorbs conduction cooling band horizontal tensile stress to cold head generation on gravity direction, and cold head can be worked on; When larger skew occurs cooled object, also there is larger skew in support thereupon, and now nylon rope disconnects, and cold head does not move with support and cooled object, plays protection cold head not by the effect of damaging.
Accompanying drawing explanation
Fig. 1 is the refrigeration machine cold head flexible transverse bracing or strutting arrangement schematic diagram of the embodiment of the present invention, in figure: 1 refrigeration machine, 2 conduction cooling bands, 3 porous supports, 4 nylon ropes, 5 cooled objects, 6 low-temperature (low temperature) vessels, 7 refrigeration machine cold heads, 8 support holes;
Fig. 2 is the holder part enlarged diagram of the embodiment of the present invention, in figure: 2 conduction cooling bands, 3 porous supports, 4 nylon ropes, 7 refrigeration machine cold heads, 8 rack ventilating holes;
Detailed description of the invention
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Refrigeration machine cold head flexible transverse bracing or strutting arrangement of the present invention is made up of conduction cooling band 2, support 3, nylon rope 4.
As depicted in figs. 1 and 2, one end of described conduction cooling band 2 connects refrigeration machine cold head 7, and the other end connects cooled object 5.Stainless support 4 is placed in the lower end of described refrigeration machine cold head 7, and support 4 is sleeved on outside conduction cooling band 2, but does not contact with conduction cooling band 2, and support 4 is fixed on cooled object 5.
Support 3 circumferentially has some through holes 8 along conduction cooling band 2, through a nylon rope 4 between every a pair adjacent through-holes 8, this root nylon rope 4 bundles with conduction cooling band 2. and like this, multipair through hole, through many nylon ropes 4, makes conduction cooling band 2 can be fixed on multi-direction.
Nylon rope 4 should be chosen has larger rigidity, the material that namely elastic modelling quantity is very little; Nylon rope can should disconnect under the pulling force that 10kg quality is corresponding, therefore needs the nylon rope selecting suitable thickness in advance.
Claims (1)
1. a refrigeration machine cold head flexible transverse bracing or strutting arrangement, is characterized in that, described refrigeration machine cold head flexible transverse bracing or strutting arrangement is made up of conduction cooling band (2), support (3) and nylon rope (4); One end of described conduction cooling band (2) is connected to refrigeration machine cold head (7), and the other end of conduction cooling band (2) connects cooled object (5); Described support (4) is placed on the lower end of refrigeration machine cold head (7), support (4) is sleeved on conduction cooling band (2) outward, do not contact with conduction cooling band (2), support (4) is fixed on cooled object (5); Described support circumferentially has multiple through hole (8) along conduction cooling band, through a nylon rope (4) between two often adjacent through holes (8), nylon rope (4) bundles with conduction cooling band (2) again; Multipair through hole (8), through many nylon ropes (4), forms multidirectional colligation to conduction cooling band (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410584821.4A CN104406351B (en) | 2014-10-27 | 2014-10-27 | Flexibly lateral bracing device for cold head of refrigerating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410584821.4A CN104406351B (en) | 2014-10-27 | 2014-10-27 | Flexibly lateral bracing device for cold head of refrigerating machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104406351A true CN104406351A (en) | 2015-03-11 |
| CN104406351B CN104406351B (en) | 2017-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410584821.4A Active CN104406351B (en) | 2014-10-27 | 2014-10-27 | Flexibly lateral bracing device for cold head of refrigerating machine |
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| Country | Link |
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| CN (1) | CN104406351B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115440461A (en) * | 2022-11-09 | 2022-12-06 | 上海超导科技股份有限公司 | Cold conduction structure for high-temperature superconducting magnet sealed low-temperature cavity and disassembly and assembly method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004003946A1 (en) * | 2002-06-26 | 2004-01-08 | Duksung Co., Ltd. | Bobbin for superconductive magnet using gifford-mcmahon cryocooler |
| CN101615469A (en) * | 2009-05-08 | 2009-12-30 | 中国科学院电工研究所 | The high-temperature superconductive magnet system of high heat capacity material protection |
| CN103065759A (en) * | 2013-01-24 | 2013-04-24 | 中国科学院电工研究所 | Superconducting magnet supporting and positioning system |
| CN103366917A (en) * | 2013-06-28 | 2013-10-23 | 清华大学 | Refrigerating device and high-temperature superconducting magnet refrigerating device |
| CN103377788A (en) * | 2012-04-27 | 2013-10-30 | 中国科学院高能物理研究所 | Superconducting magnet system |
-
2014
- 2014-10-27 CN CN201410584821.4A patent/CN104406351B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004003946A1 (en) * | 2002-06-26 | 2004-01-08 | Duksung Co., Ltd. | Bobbin for superconductive magnet using gifford-mcmahon cryocooler |
| CN101615469A (en) * | 2009-05-08 | 2009-12-30 | 中国科学院电工研究所 | The high-temperature superconductive magnet system of high heat capacity material protection |
| CN103377788A (en) * | 2012-04-27 | 2013-10-30 | 中国科学院高能物理研究所 | Superconducting magnet system |
| CN103065759A (en) * | 2013-01-24 | 2013-04-24 | 中国科学院电工研究所 | Superconducting magnet supporting and positioning system |
| CN103366917A (en) * | 2013-06-28 | 2013-10-23 | 清华大学 | Refrigerating device and high-temperature superconducting magnet refrigerating device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115440461A (en) * | 2022-11-09 | 2022-12-06 | 上海超导科技股份有限公司 | Cold conduction structure for high-temperature superconducting magnet sealed low-temperature cavity and disassembly and assembly method |
| CN115440461B (en) * | 2022-11-09 | 2023-01-24 | 上海超导科技股份有限公司 | Cold guide structure for sealing low-temperature cavity of high-temperature superconducting magnet and disassembling and assembling method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104406351B (en) | 2017-01-11 |
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