CN212870297U - Magnet cold head assembly - Google Patents
Magnet cold head assembly Download PDFInfo
- Publication number
- CN212870297U CN212870297U CN202021932356.6U CN202021932356U CN212870297U CN 212870297 U CN212870297 U CN 212870297U CN 202021932356 U CN202021932356 U CN 202021932356U CN 212870297 U CN212870297 U CN 212870297U
- Authority
- CN
- China
- Prior art keywords
- cold head
- cooling plate
- pipe
- magnet
- baffle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000001816 cooling Methods 0.000 claims abstract description 37
- 238000009434 installation Methods 0.000 claims abstract description 3
- 238000003466 welding Methods 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 claims description 24
- 239000007789 gas Substances 0.000 abstract description 16
- 239000001307 helium Substances 0.000 abstract description 14
- 229910052734 helium Inorganic materials 0.000 abstract description 14
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 abstract description 14
- 239000007788 liquid Substances 0.000 abstract description 8
- 238000009833 condensation Methods 0.000 description 5
- 230000005494 condensation Effects 0.000 description 5
- 239000000112 cooling gas Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Containers, Films, And Cooling For Superconductive Devices (AREA)
Abstract
The utility model discloses a magnet cold head subassembly, including cold head body and sealed lid, fixed welding has the baffle on the pipe wall of cold head body, sealed lid seal installation in the one end of cold head body, and the open end of sealed lid is contradicted in the lower surface of baffle, the inside of cold head body divide into gaseous chamber and the gaseous backward flow chamber of giving vent to anger through L shape baffle, be provided with outlet duct and back flow on the lateral wall of sealed lid respectively, just outlet duct and back flow are respectively through hose and the inside intercommunication in chamber and the gaseous backward flow chamber of giving vent to anger, the other end intercommunication of outlet duct has the connecting pipe, the other end and the back flow intercommunication of connecting pipe, be provided with the cooling plate on the connecting pipe. The utility model discloses a sealed endless mode is cooled down the cooling plate, cools off the inside helium of superconducting magnet through the cooling plate, and this kind of mode avoids liquid helium to become gas to a certain extent and discharges outside the equipment through the cold head container from the low temperature container.
Description
Technical Field
The utility model relates to a magnet cold head technical field specifically is a magnet cold head subassembly.
Background
In addition, an inlet communicated with the low-temperature container is usually arranged on the wall of the cold head container provided with the cold head of the refrigerating machine, and the evaporated helium gas can be contacted with the cold head of the refrigerating machine through the inlet, so that the cold head of the refrigerating machine is kept in a low-temperature state all the time in the transportation process of the magnetic resonance equipment.
When the magnetic resonance equipment runs for a period of time, the cold head needs to be replaced, at this time, the magnet needs to be lowered, otherwise, a large amount of liquid helium becomes gas and is discharged out of the equipment from the low-temperature container through the cold head container, and loss is caused, but the replacement operation of the cold head takes a large amount of time and labor through the field lowering operation of the magnet and the field raising operation after the replacement of the cold head, and therefore the magnet cold head assembly is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a magnet cold head subassembly, this subassembly is through respectively through hose and play gas cavity and the inside intercommunication of gaseous backward flow chamber with outlet duct and back flow, when in-service use, cools down the cooling plate through sealed endless mode, cools off the inside helium of superconducting magnet through the cooling plate, and this kind of mode avoids liquid helium to become gas to a certain extent and discharges outside the equipment through the cold head container from the low temperature container to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a magnet cold head subassembly, includes cold head body and sealed lid, fixed welding has the baffle on the pipe wall of cold head body, sealed lid seal installation in the one end of cold head body, and the open end of sealed lid is contradicted in the lower surface of baffle, the inside of cold head body divide into gaseous chamber and the gaseous backward flow chamber of giving vent to anger through L shape baffle, be provided with outlet duct and back flow on the lateral wall of sealed lid respectively, just outlet duct and back flow are respectively through hose and the inside intercommunication in chamber and the gaseous backward flow chamber of giving vent to anger, the other end intercommunication of outlet duct has the connecting pipe, the other end and the back flow intercommunication of connecting pipe, be provided with the cooling plate on the connecting pipe.
Preferably, the cooling plate is a hollow cooling plate, and two ends of the cooling plate are respectively provided with a communicating pipe communicated with the inner wall of the connecting pipe.
Preferably, the inner top and the inner bottom of the cooling plate are provided with baffle plates which are arranged in a staggered manner.
Preferably, the fixed bonding of the lower surface of baffle has sealed the pad, sealed the pad sets up to elastic rubber seal pad, and the open end of sealed lid is contradicted on sealed lateral wall of filling up.
Preferably, one end of the connecting pipe close to the air outlet pipe and the return pipe is provided with a valve.
Preferably, the outer wall of the cold head pipe body is provided with an external thread, the sealing cover is internally provided with an internal thread matched with the sealing cover, and the sealing cover is in threaded connection with the lower end of the cold head pipe body.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a with outlet duct and back flow respectively through hose and play gas cavity and the inside intercommunication of gas reflux chamber, when in actual use, cool down the cooling plate through the mode of sealed circulation, cool off the helium of superconducting magnet inside through the cooling plate, this kind of mode avoids liquid helium to become gas to discharge outside equipment through the cold head container from the low temperature container to a certain extent;
2. the utility model discloses a set up the cooling plate into hollow cooling plate to through communicating pipe and the inside intercommunication of connecting pipe, and all be provided with the baffling board at the interior top and the interior bottom of cooling plate, not only increased condensation area of contact, can delay the cooling gas through the baffling board in addition at the inside mobile time of cooling plate, ensured the condensation effect to a certain extent.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the sealing cover of the present invention;
fig. 3 is a schematic structural diagram of the cooling plate of the present invention.
In the figure: 1. a cold head pipe body; 2. a sealing cover; 3. a baffle plate; 4. an L-shaped partition plate; 5. an air outlet cavity; 6. a gas reflux cavity; 7. an air outlet pipe; 8. a return pipe; 9. a hose; 10. a connecting pipe; 11. a cooling plate; 12. a communicating pipe; 13. a baffle plate; 14. a gasket; 15. a valve; 16. an external thread; 17. an internal thread.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a technical scheme:
referring to fig. 1 and 2, a magnet cold head assembly includes a cold head pipe 1 and a sealing cover 2, a baffle 3 is fixedly welded on a pipe wall of the cold head pipe 1, the sealing cover 2 is hermetically installed at one end of the cold head pipe 1, an open end of the sealing cover 2 abuts against a lower surface of the baffle 3, a sealing gasket 14 is fixedly bonded on the lower surface of the baffle 3, the sealing gasket 14 is an elastic rubber sealing gasket, the open end of the sealing cover 2 abuts against a side wall of the sealing gasket 14, an external thread 16 is arranged on an outer wall of the cold head pipe 1, an internal thread 17 matched with the sealing cover 2 is arranged inside the sealing cover 2, and the sealing cover 2 is in threaded connection with a lower end of the cold;
through the design, the cold head pipe body 1 is in threaded connection with the sealing cover 2, and the baffle 3 and the sealing gasket 14 are used for sealing the cold head pipe body and the sealing cover, so that the existing method that cooling gas is directly injected into a liquid helium cooling area of a superconducting magnet through a cold head is replaced, and liquid helium is prevented from being changed into gas to be discharged out of equipment from a low-temperature container through the cold head container to a certain extent;
the inside of the cold head pipe body 1 is divided into a gas outlet cavity 5 and a gas return cavity 6 by an L-shaped partition plate 4, the side wall of the sealing cover 2 is respectively provided with an air outlet pipe 7 and a return pipe 8, the air outlet pipe 7 and the return pipe 8 are respectively communicated with the inside of the gas outlet cavity 5 and the gas return cavity 6 by a hose 9, the other end of the air outlet pipe 7 is communicated with a connecting pipe 10, the other end of the connecting pipe 10 is communicated with the return pipe 8, and one end of the connecting pipe 10, which is close to the air outlet pipe 7 and the return;
referring to fig. 1 and 3, a cooling plate 11 is disposed on the connecting pipe 10, the cooling plate 11 is a hollow cooling plate, two ends of the cooling plate 11 are respectively provided with a communicating pipe 12 communicated with an inner wall of the connecting pipe 10, the inner top and the inner bottom of the cooling plate 11 are both provided with baffle plates 13, and the baffle plates 13 are arranged in a staggered manner;
through the design, the cooling plate 11 can increase the contact area with the liquid helium, so that the condensation area of the helium is increased, and the cooling efficiency of the cold head is improved.
The structure principle is as follows: according to the cold head assembly, the air outlet pipe 7 and the return pipe 8 are respectively communicated with the air outlet cavity 5 and the gas return cavity 6 through the hose 9, when the cold head assembly is actually used, the cooling plate is cooled in a sealed circulation mode, helium in the superconducting magnet is cooled through the cooling plate 11, and liquid helium is prevented from being changed into gas to be discharged out of equipment from a low-temperature container through the cold head container to a certain extent; by setting the cooling plate 11 as a hollow cooling plate, and communicating with the inside of the connecting pipe 10 through the communicating pipe 12, and by providing the baffle plates 13 at the inner top and the inner bottom of the cooling plate 11, not only the condensation contact area is increased, but also the time of the cooling gas flowing inside the cooling plate 11 can be delayed through the baffle plates 13, and the condensation effect is ensured to a certain extent.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a magnet cold head subassembly, includes cold head body (1) and sealed lid (2), its characterized in that: fixed welding has baffle (3) on the pipe wall of cold head body (1), sealed lid (2) seal installation in the one end of cold head body (1), and the open end of sealed lid (2) contradicts in the lower surface of baffle (3), the inside of cold head body (1) is divided into gaseous play gas cavity (5) and gaseous backward flow chamber (6) through L shape baffle (4), be provided with outlet duct (7) and back flow (8) on the lateral wall of sealed lid (2) respectively, just outlet duct (7) and back flow (8) are respectively through hose (9) and go out gas cavity (5) and the inside intercommunication of gaseous backward flow chamber (6), the other end intercommunication of outlet duct (7) has connecting pipe (10), the other end and back flow (8) the intercommunication of connecting pipe (10), be provided with cooling plate (11) on connecting pipe (10).
2. A magnet coldhead assembly according to claim 1, wherein: the cooling plate (11) is a hollow cooling plate, and the two ends of the cooling plate (11) are respectively provided with a communicating pipe (12) communicated with the inner wall of the connecting pipe (10).
3. A magnet coldhead assembly according to claim 2, wherein: the inner top and the inner bottom of the cooling plate (11) are both provided with baffle plates (13), and the baffle plates (13) are arranged in a staggered manner.
4. A magnet coldhead assembly according to claim 1, wherein: the lower fixed surface of baffle (3) is bonded with sealed pad (14), sealed pad (14) set up to elastic rubber seal pad, and the open end of sealed lid (2) is contradicted on the lateral wall of sealed pad (14).
5. A magnet coldhead assembly according to claim 1, wherein: and a valve (15) is arranged at one end of the connecting pipe (10) close to the air outlet pipe (7) and the return pipe (8).
6. A magnet coldhead assembly according to claim 1, wherein: the cold head pipe body is characterized in that an external thread (16) is arranged on the outer wall of the cold head pipe body (1), an internal thread (17) matched with the sealing cover (2) is arranged in the sealing cover (2), and the sealing cover (2) is in threaded connection with the lower end of the cold head pipe body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021932356.6U CN212870297U (en) | 2020-09-07 | 2020-09-07 | Magnet cold head assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021932356.6U CN212870297U (en) | 2020-09-07 | 2020-09-07 | Magnet cold head assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212870297U true CN212870297U (en) | 2021-04-02 |
Family
ID=75195058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021932356.6U Expired - Fee Related CN212870297U (en) | 2020-09-07 | 2020-09-07 | Magnet cold head assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212870297U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113948268A (en) * | 2021-10-18 | 2022-01-18 | 上海电气(集团)总公司智惠医疗装备分公司 | Liquid helium-free superconducting magnet system |
-
2020
- 2020-09-07 CN CN202021932356.6U patent/CN212870297U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113948268A (en) * | 2021-10-18 | 2022-01-18 | 上海电气(集团)总公司智惠医疗装备分公司 | Liquid helium-free superconducting magnet system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210402 |