CN208157190U - A kind of cold head aluminium neck tube - Google Patents
A kind of cold head aluminium neck tube Download PDFInfo
- Publication number
- CN208157190U CN208157190U CN201820811574.0U CN201820811574U CN208157190U CN 208157190 U CN208157190 U CN 208157190U CN 201820811574 U CN201820811574 U CN 201820811574U CN 208157190 U CN208157190 U CN 208157190U
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- copper
- tube body
- cold head
- arc groove
- compiled
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Abstract
The utility model discloses a kind of cold head aluminium neck tubes, it belongs to superconducting magnet cold transfer device technical field, tube body including tubulose, one end of the tube body connects with copper build, the end face that the tube body and the copper build connect is equipped with arc groove, the arc groove matches with copper volume, and the copper volume is embedded into the arc groove；The utility model connects with copper build by welding, can effectively increase the contact area compiled with copper, cooling capacity preferably be transmitted, to improve the insulation effect of cold screen.
Description
Technical field
The utility model relates to superconducting magnet cold transfer device technical fields, and in particular to a kind of cold head aluminium neck tube.
Background technique
Superconducting MRI (magnetic resonance imaging) equipment must use liquid helium as refrigerant, establish and keep for superconducting coil
Environment temperature (4.2K), therefore magnet uses vacuum multilayer insulation structure, but due to many factors such as structural supports, it is impossible to
It is prevent completely heat transfer, so superconducting magnetic resonance equipment is equipped with refrigeration system, to maintain the temperature of 4.2K.Refrigeration system is by cold
Head, compressor, 3 part of water chiller composition, cold head is refrigeration part, for superconducting coil provide 4K 50K two-stage low temperature, it is
One expanding machine, the high-purity helium through overcompression expand the heat for taking away surrounding herein, and cooling capacity is transmitted to the screen of magnetic resonance
It covers, it is thermally conductive to carry out isolation structures.Compressor is mainly that cold head provides high-pressure helium, the low pressure helium returned by cold head, through over-voltage
Contracting adherence pressure, the cooling water heat exchange provided with water chiller, oil strain these processes, is transported to cold head for high pressure helium, establishes
Circulated helium process：It is ceaselessly worked by cold head and compressor, so that it may continuously provide cooling capacity for magnetic resonance.
In traditional structure, refrigeration machine is sequentially connected cold head level-one connecting flange, cold head level-one copper flange, copper volume, cold head
Aluminium neck tube and cold screen, the cooling capacity that refrigeration machine generates is passed sequentially through to be compiled by cold head level-one connecting flange, cold head level-one copper flange, copper
It is transmitted on cold screen with cold head aluminium neck tube, in the prior art, copper is compiled and cold head aluminium neck tube is attached by bolt, the two
Between contact surface it is smaller, limit the transmitting of cooling capacity, prevent cold screen from playing better insulation effect.
Utility model content
For the problems of in the prior art, a kind of cold head aluminium neck tube provided by the utility model can be effective
Increase the contact area compiled with copper, cooling capacity is preferably transmitted, to improve the insulation effect of cold screen.
To achieve the goals above, the technical solution adopted in the utility model is as follows：
A kind of cold head aluminium neck tube, the tube body including tubulose, one end and the copper build of the tube body connect, the tube body with it is described
The end face that copper build connects is equipped with arc groove, and the end that the arc groove is compiled with the copper matches, and the end that the copper is compiled is embedding
Enter into the arc groove.
As a kind of perferred technical scheme, the other end of the tube body is connect with cold screen.
As a kind of perferred technical scheme, the tube body and the copper, which are compiled, welds.
As a kind of perferred technical scheme, the tube body and the copper are compiled is welded by copper aluminium welding rod.
As a kind of perferred technical scheme, arc groove there are two being set on the end face of the tube body, two arc grooves
The identical and axis about the tube body of size is oppositely arranged.
The beneficial effects of the utility model are shown：
The tube body of the utility model connects with copper build by welding, can effectively increase the contact surface compiled with copper
Product, preferably transmits cooling capacity, to improve the insulation effect of cold screen.
Detailed description of the invention
Fig. 1 is a kind of overall structure diagram of cold head aluminium neck tube of the utility model；
In figure：1- tube body, 2- arc groove.
Specific embodiment
In order to facilitate the understanding of those skilled in the art, the utility model will be further described below with reference to the accompanying drawings.
As shown in Figure 1, the utility model includes the tube body 1 of tubulose, one end and the copper build of tube body 1 are connect, and tube body 1 and copper are compiled
The end face of connection is equipped with arc groove 2, and the end that arc groove 2 is compiled with copper matches, and the end that copper is compiled is embedded into arc groove 2；
It being set on the end face of tube body 1 there are two arc groove 2, two identical and axis about tube body 1 of 2 size of arc groove are oppositely arranged, and two
A arc groove 2 can be just corresponding with the end that copper is compiled.
The other end of tube body 1 is connect with cold screen；Tube body 1 and copper are compiled to be welded by copper aluminium welding rod, and specific welding method is
Copper volume is uniformly placed in arc groove 2, is then melted in filling arc groove 2 with copper aluminium welding rod, it is cooling solid to copper aluminium welding rod
Change, the mode of copper aluminium welding rod welding can make tube body 1 and copper compile effective contact, increase contact area between the two, mention
The transmission efficiency of high cooling capacity.
Above content is only the structure example and explanation to the utility model, the technologies of affiliated the art
Personnel make various modifications or additions to the described embodiments or are substituted in a similar manner, without departing from
The structure of utility model or beyond the scope defined by this claim, all should belong to the protection range of the utility model.
Claims (5)
1. a kind of cold head aluminium neck tube, characterized in that the tube body including tubulose, one end and the copper build of the tube body connect, the pipe
The end face that body and the copper build connect is equipped with arc groove, and the end that the arc groove is compiled with the copper matches, and the copper is compiled
End be embedded into the arc groove.
2. a kind of cold head aluminium neck tube according to claim 1, characterized in that the other end of the tube body is connect with cold screen.
3. a kind of cold head aluminium neck tube according to claim 1, characterized in that the tube body and the copper are compiled and welded.
4. a kind of cold head aluminium neck tube according to claim 3, characterized in that the tube body and copper volume pass through copper and aluminium welding
Wire bond connects.
5. a kind of cold head aluminium neck tube according to claim 1, characterized in that arc there are two being set on the end face of the tube body
Slot, two identical and axis about the tube body of the arc groove size are oppositely arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820811574.0U CN208157190U (en) | 2018-05-29 | 2018-05-29 | A kind of cold head aluminium neck tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820811574.0U CN208157190U (en) | 2018-05-29 | 2018-05-29 | A kind of cold head aluminium neck tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208157190U true CN208157190U (en) | 2018-11-27 |
Family
ID=64388760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820811574.0U Active CN208157190U (en) | 2018-05-29 | 2018-05-29 | A kind of cold head aluminium neck tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208157190U (en) |
-
2018
- 2018-05-29 CN CN201820811574.0U patent/CN208157190U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190226 Address after: 261205 No. 8000 Weian Road, Yujing Community, Qingchi Street, High-tech Zone, Weifang City, Shandong Province Patentee after: Shandong Aoxin Medical Technology Co., Ltd. Address before: 261205 No. 8000 Weian Road, Weifang High-tech Zone, Shandong Province Patentee before: Weifang Xinli Superconducting Magnet Technology Co., Ltd. |