CN207301181U - A kind of superconductor cavity vertical checkout insert - Google Patents
A kind of superconductor cavity vertical checkout insert Download PDFInfo
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- CN207301181U CN207301181U CN201720917296.2U CN201720917296U CN207301181U CN 207301181 U CN207301181 U CN 207301181U CN 201720917296 U CN201720917296 U CN 201720917296U CN 207301181 U CN207301181 U CN 207301181U
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- liquid helium
- vertical checkout
- vacuum
- superconductor cavity
- dashpot
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Abstract
The utility model discloses a kind of superconductor cavity vertical checkout insert, including vertical checkout hanger, vacuum system and vertical checkout top flange, it is characterized in that, further include a liquid helium dashpot and N number of liquid helium groove, each liquid helium groove is corresponding with a superconductor cavity, for accommodating superconductor cavity to be tested and cooling down liquid helium needed for the superconductor cavity；Wherein, each liquid helium groove is connected fixation with the clamping plate of the vertical checkout hanger respectively；The liquid helium dashpot is located between the platform sling of the vertical checkout hanger and the clamping plate, is connected and fixed by the sunpender of the vertical checkout hanger；The liquid injection pipe of the liquid helium dashpot and the vertical checkout top flanged joint, the liquid helium dashpot are equipped with N bar liquid helium transmission lines, and each liquid helium transmission line is connected with a liquid helium groove, for the liquid helium transmission between the liquid helium dashpot and the liquid helium groove；The vacuum system is equipped with N bar vacuum pipes, and each vacuum pipe is used to connect a superconductor cavity to be tested.The utility model substantially increases testing efficiency.
Description
Technical field
A kind of superconductor cavity vertical checkout insert is the utility model is related to, belongs to particle accelerator, Cryogenics neck
Domain.
Background technology
Superconductor cavity vertical checkout insert is the important component of superconductor cavity vertical checkout system, is a set of by a variety of materials
Expect support and the Lift-on/Lift-off System formed.It is operated in 2K (or 4K) low temperature, high vacuum, the adverse circumstances of radiation, main function
It is to lift superconductor cavity, sealing test Dewar vacuum, and as multilayer thermal-insulating board, vacuum pump, radio-frequency cable, and pressure gauge, temperature
Spend the installation carrier of the superconductor cavities such as sensor test auxiliary device.
In order to deeper into exploratory development material profound structure, disclose the secret and rule of nature, and promote base
Plinth studies the application in technical field, and superconducting accelerator becomes scientists focus of attention.Superconducting accelerator can be very short
Distance in particle is accelerated to higher energy, can allow these high energy particles head-on collision carry out study of high energy physics, can also
The ray sent using particle carries out the analysis and research of living matter, material structure.Therefore multiple large-scale superconductions both at home and abroad add
Fast device project is also come into being.The superconductor cavity quantity of large-scale superconducting accelerator requirement of engineering is very big, as the U.S. is being built
Linear accelerator coherent source project needs more than 300 superconductor cavity, the future international straight line pair that multiple state plan joints are built
Colliding needs 16000 superconductor cavities, and the Shanghai free-electron laser device that will be built needs more than 700 superconductor cavity.
Every superconductor cavity has to be installed on vertical checkout insert, the RF by vertical checkout system to superconductor cavity
Can and some mechanical performance be tested, and after reaching design requirement, general assembly can be carried out.Due to the manufacture work of superconductor cavity
Skill is complicated, still has many problems at present just under study for action, therefore a superconductor cavity can even pass through repeatedly processing and test.In order to
The vertical checkout efficiency of superconductor cavity, compression verification cycle are improved, and ensures that the security needs of test equipment have a set of high efficiency,
Multi-functional vertical checkout insert system.
Domestic and international general superconductor cavity vertical checkout insert system structure and operation principle schematic diagram such as Fig. 1 institutes at present
Show, general superconductor cavity vertical checkout insert system is mainly made of vertical checkout top flange and vertical checkout hanger two parts.
Vacuum pump, vacuum pipe and other sensor devices are housed on the flange of vertical checkout top.Vertical checkout hanger is mainly by multilayer
Thermal insulation board, supporting plate, platform sling, sunpender, and superconductor cavity strap etc. are formed.The superconductor cavity of test is installed to survey as shown in Figure 1
Try on hanger, and be connected with vacuum pipe and other sense measuring devices, then integrally hang vertical checkout insert system
Enter in big test Dewar, vacuumize carry out cooling test.Vertical checkout top flange also acts as the work of sealing test Dewar vacuum
With.
This scheme has the following disadvantages and deficiency：
(1) the liquid helium amount that the performance test for superconductor cavity needs is big, the long time period of cooling and rewarming needs.Due to
Such a test needs to inject liquid helium in big Dewar carries out cooling test, it is necessary to ensure that liquid helium face submerges super in Dewar to superconductor cavity
Guide cavity, and ensure that certain altitude could be tested, such a fluid injection mode need the equipment that cools down it is more (Dewar inner cylinder, superconductor cavity,
Frock hanger etc.), cause the liquid helium cost increase for testing needs, test period is also long；
(2) cooling test can only be carried out to a superconductor cavity every time, testing efficiency is low, is unfavorable for the scale metaplasia of superconductor cavity
Production test.This vertical checkout insert only has a vacuum pipe, in the case where test period is constant, can only connect one every time
Superconductor cavity carries out cooling test, and testing efficiency is low；
(3) for the radiological safety protection deficiency of equipment on the flange of vertical checkout top.Meeting during superconductor cavity vertical checkout
X rays are produced, due to being equipped with vacuum pump, and other test electronic devices on the flange of vertical checkout top, in unprotected feelings
Under condition, the damage of equipment is easily caused.
The large-scale production test that 3 points of the above have impact on superconductor cavity to a certain extent, testing cost is high, and efficiency is low, and
There are certain equipment safety hidden danger, is unfavorable for extensive development and the application of superconducting accelerator.
Utility model content
For technical problem existing in the prior art, the purpose of this utility model is to provide a kind of superconductor cavity vertically to survey
Insert is tried, testing cost height is reduced, improves testing efficiency.
The technical solution of the utility model is：
A kind of superconductor cavity vertical checkout insert, including vertical checkout hanger, vacuum system and vertical checkout top flange, its
It is characterized in that, further includes a liquid helium dashpot and N number of liquid helium groove, each liquid helium groove is corresponding with a superconductor cavity, for accommodating
Superconductor cavity to be tested and cool down liquid helium needed for the superconductor cavity；Wherein, each liquid helium groove respectively with the vertical checkout hanger
Clamping plate connection is fixed；The liquid helium dashpot is located between the platform sling of the vertical checkout hanger and the clamping plate, passes through the vertical checkout
The sunpender connection of hanger is fixed；The liquid injection pipe of the liquid helium dashpot and the vertical checkout top flanged joint, the liquid helium dashpot are set
There are N bar liquid helium transmission lines, each liquid helium transmission line is connected with a liquid helium groove, for the liquid helium dashpot and the liquid
Liquid helium transmission between helium groove；The vacuum system is equipped with N bar vacuum pipes, and it is to be tested that each vacuum pipe is used for connection one
Superconductor cavity, N is natural number.
Further, which includes a vacuum pump and a N+1 leads to transfer tube, and it is vertical that the vacuum pump is installed on this
On the outside of the flange of test top, the vacuum pump leads to transfer tube by the N+1 and is connected with the N bars vacuum pipe, each vacuum pipe
Two vacuum valves are equipped with, one of vacuum valve is located at the outside of the vertical checkout top flange, and another vacuum valve hangs down positioned at this
The inner side of straight test top flange.
Further, a radiation shield is further included；The radiation shield is installed on the platform sling of the vertical checkout hanger
Top.
Further, the radiation shield is circular configuration, and the radiation shield is used for the vacuum tube equipped with N number of
The macropore and multiple apertures passed through for cable run that road passes through.
The main innovation point of the utility model includes：
(1) liquid helium dashpot is increased：Increase liquid helium dashpot in vertical checkout insert, and by liquid helium dashpot with surpassing
The liquid helium groove of guide cavity is connected by cryogenic pipelines, when carrying out fluid injection cooling test to superconductor cavity, it is only necessary to liquid helium dashpot
Interior fluid injection, it is not necessary to the fluid injection helium into big Dewar.Since the liquid helium groove of liquid helium dashpot and superconductor cavity is transmitted by liquid helium
Line is connected, and liquid helium can be flowed into superconductor cavity liquid helium groove by low-temperature transmission lines, superconductor cavity is submerged, big Dewar only needs to keep at this time
Vacuum state.The effect of liquid helium mainly for superconductor cavity provides low-temperature test environment, when being full of liquid in superconductor cavity liquid helium groove
In the case of helium, the physical characteristic of superconductor cavity has met test request, and the liquid in liquid helium dashpot during the test
Helium can be supplemented from the external world, be always ensured that it is hydraulically full in superconductor cavity liquid helium groove, and in liquid helium dashpot liquid helium face dimension
Hold in certain altitude.Such a mode disclosure satisfy that the requirement of superconductor cavity vertical checkout.Due to liquid helium dashpot and superconductor cavity liquid helium
The volume of groove and the volume of Dewar is much smaller than, and need the equipment volume that cools down and quality also accordingly to reduce.Therefore save
The dosage of test liquid helium, reduces the cost of test, and shortens the rewarming cycle of cooling fluid injection and superconductor cavity, improves survey
Try efficiency.
(2) four road vacuum pipes are used, and share a vacuum pump：Vacuum pump is installed on superconductor cavity vertical checkout top flange
Center, and be connected by the one five logical vacuum port that will pump with four vacuum pipes, four vacuum pipes share a vacuum pump, often
A vacuum pipe has single valve.Each vacuum pipe can be connected with a superconductor cavity vacuum valve, so can once pacify
4 superconductor cavities are filled, and cooling test is carried out to it, the efficiency of test is greatly improved, reduces the test of every superconductor cavity
Cost, easy to the extensive batch testing of superconductor cavity.
(3) radiation shield is increased on vertical checkout hanger：The radiation that the X-ray produced in test process can be increased
Barricade stops, reduces the dose of radiation of vertical checkout top flange, is conducive to vacuum pump system, and other electronic monitorings dress
The equipment safety put.
The designing scheme schematic diagram of the superconductor cavity vertical checkout insert of the application is illustrated in figure 2, this programme design
Superconductor cavity vertical checkout insert system is mainly buffered by vertical checkout top flange, vacuum system, vertical checkout hanger, liquid helium
Groove, and some such as radiation shield compositions.It once disclosure satisfy that the more vertical checkouts with liquid helium groove superconductor cavity, Neng Gouti
High testing efficiency, saves testing cost, and the addition of radioprotector, improves the security of equipment.
1. liquid helium dashpot：
It is illustrated in figure 3 the structure and scheme of installation of liquid helium dashpot.Liquid helium dashpot is connected by sunpender with platform sling,
The top of liquid helium dashpot liquid injection pipe is welded with top flange, and four liquid helium transmission lines, liquid are installed in the lower part of liquid helium dashpot
Helium transmission line is used for being connected with the liquid helium groove of superconductor cavity.Exterior liquid helium is injected in liquid helium dashpot by the port of liquid injection pipe, and
Pass through liquid helium groove fluid injection of the liquid helium transmission line to every superconductor cavity (during test, each superconductor cavity is located in a liquid helium groove).The liquid
Helium dashpot is located between the platform sling of the vertical checkout hanger and the clamping plate, is connected by the sunpender of the vertical checkout hanger solid
Fixed, which is fixedly connected with the sunpender of the liquid helium dashpot lower end, and every superconductor cavity is connected with strap respectively again.Liquid helium
Dashpot spatial volume compared with exterior Dewar is small, and the liquid helium amount that reservoir container needs is small.
2. vacuum system：
It is illustrated in figure 4 the structure diagram of vertical checkout insert vacuum system.Vacuum pump and five logical is installed on top method
Blue top.Five it is logical be connected with four vacuum pipes, vacuum pipe passes through flange seal interface and pushes up flanged joint, each vacuum
There are two vacuum valves on pipeline, one is being pushed up on the outside of flange, and one on the inside of the flange of top.The bottom of vacuum pipe and superconductor cavity
Vacuum corner valve be connected.After vacuum pump startup, the twice vacuum valve of vacuum pipe is opened, carries out gas displacement, then
The angle valve on superconductor cavity is opened, then vacuum pump directly takes out the vacuum of chamber.Due to there are four vacuum pipes, can connect at the same time
Four superconductor cavities, improve testing efficiency；Since four vacuum pipes share a set of vacuum system, and every vacuum pipe dress
There is vacuum valve, therefore not only saved the cost of vacuum pump, but also can guarantee that four vacuum pipe work are separate.
3. radiation shield
The structure diagram of radiation shield is illustrated in figure 5, radiation shield is circular configuration, and in barricade
Outside is provided with eight holes：Four macropores and four apertures.Vacuum pipe is passed through from four macropores, aperture as radio-frequency cable, plus
Hot device, and the passage of other sensor cables.
Radiation shield is fixed with sunpender, installed in the top of platform sling, radiation shield scheme of installation as shown in fig. 6,
For shielding the X-ray produced in superconductor cavity test process.Vacuum pump on the flange of protection top, and other electronic metering equipments
Safety.
Compared with prior art, the good effect of the utility model is：
The utility model can greatly save liquid helium dosage (the general superconductor cavity progress low-temperature test need of superconductor cavity vertical checkout
Will about 3000L liquid heliums, using such a superconductor cavity vertical checkout insert, the liquid helium amount for testing needs is about 1500L, save
The liquid helium dosage and correlative charges of half), and (usually one week superconductor cavity time of test test period of superconductor cavity can be shortened
Phase is seven days, including installation, cooling and rewarming.But such a superconductor cavity vertical checkout insert is used, test four superconductor cavities
Time cycle shorten to three days), the testing efficiency of superconductor cavity is greatly improved, can be that the large-scale production test of superconductor cavity is established
Fixed certain basis.And increase radiation shield inside superconductor cavity vertical checkout insert, be conducive to improve test equipment and
The safety of surrounding environment, easy to push through application to enterprise.
Brief description of the drawings
Fig. 1 is general vertical checkout insert system structure and operation principle；
Fig. 2 is superconductor cavity vertical checkout insert designing scheme schematic diagram；
Fig. 3 is liquid helium dashpot and mounting structure schematic diagram；
Fig. 4 is vacuum system structure diagram；
Fig. 5 is radiation shield plate structure schematic diagram；
Fig. 6 is radiation shield scheme of installation.
Wherein, 1- vacuum pumps, 2- tops flange, 3- superconductor cavities, 4- clamping plates, 5- platform slings, 6- multilayer thermal-insulating boards, 7- supporting plates, 8-
Vacuum pipe, 9- sunpenders, 10- radiation shields, 11- liquid helium dashpots, 12- liquid helium transmission lines, 13- liquid injection pipes, 14- vacuum
Valve, 15- five lead to vacuum tube, 16- vacuum pipes, 17- macropores, 18- apertures.
Embodiment
In order to be better understood from the technical solution of the utility model, below in conjunction with the accompanying drawings and specific embodiment is new to this practicality
Type is described in further detail.
The material requirements mechanical strength that makes superconductor cavity vertical checkout insert is big, without magnetic.Top flange can use 316L
Stainless steel (needs to carry out magnetic treatment) after processing, and multilayer thermal-insulating board uses stiff foam material, and supporting plate uses duralumin plate, sunpender
Using titanium alloy (TA4), liquid helium dashpot uses titanium alloy (TA2), pushes up vacuum pipe and five on the outside of flange and leads to using 316L not
Become rusty steel, and vacuum pipe uses titanium alloy (TA2) on the inside of the flange of top, and radiation shield uses stereotype.In top flange and sunpender, and
The junction of sunpender and platform sling adds the heat-insulated sections of G10 and is thermally insulated, and reduces the quiet of superconductor cavity vertical checkout insert system
State leakage heat.Screw rod and axle sleeve not use same material, and screw rod can use titanium alloy, stainless steel, and axle sleeve can use brass, prevent same
Kind material is stuck.
In conclusion the above is only the preferred embodiments of the present utility model only, the utility model is not intended to limit
Protection domain.Where within the spirit and principles of the present invention, any modification, equivalent substitution, improvement and etc. done, should all wrap
It is contained within the scope of protection of the utility model.
Claims (4)
1. a kind of superconductor cavity vertical checkout insert, including vertical checkout hanger, vacuum system and vertical checkout top flange, it is special
Sign is, further includes a liquid helium dashpot and N number of liquid helium groove, and each liquid helium groove is corresponding with a superconductor cavity, is treated for accommodating
The superconductor cavity of test and cool down liquid helium needed for the superconductor cavity；Wherein, each liquid helium groove folder with the vertical checkout hanger respectively
Plate connection is fixed；The liquid helium dashpot is located between the platform sling of the vertical checkout hanger and the clamping plate, is hung by the vertical checkout
The sunpender connection of frame is fixed；The liquid injection pipe of the liquid helium dashpot and the vertical checkout top flanged joint, the liquid helium dashpot are equipped with N
Bar liquid helium transmission line, each liquid helium transmission line is connected with a liquid helium groove, for the liquid helium dashpot and the liquid helium
Liquid helium transmission between groove；The vacuum system is equipped with N bar vacuum pipes, and it is to be tested that each vacuum pipe is used for connection one
Superconductor cavity, N are natural number.
2. superconductor cavity vertical checkout insert as claimed in claim 1, it is characterised in that the vacuum system includes a vacuum pump
Lead to transfer tube with a N+1, the vacuum pump is installed on the outside of the vertical checkout top flange, and the vacuum pump is led to by the N+1 to be turned
Adapter is connected with the N bars vacuum pipe, and each vacuum pipe is equipped with two vacuum valves, and one of vacuum valve hangs down positioned at this
The outside of straight test top flange, another vacuum valve are located at the inner side of the vertical checkout top flange.
3. superconductor cavity vertical checkout insert as claimed in claim 1 or 2, it is characterised in that further include a radiation shield；
The radiation shield is installed on above the platform sling of the vertical checkout hanger.
4. superconductor cavity vertical checkout insert as claimed in claim 3, it is characterised in that the radiation shield is tied to be circular
Structure, the radiation shield be equipped with N number of macropore passed through for the vacuum pipe and it is multiple passed through for cable run it is small
Hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720917296.2U CN207301181U (en) | 2017-07-26 | 2017-07-26 | A kind of superconductor cavity vertical checkout insert |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720917296.2U CN207301181U (en) | 2017-07-26 | 2017-07-26 | A kind of superconductor cavity vertical checkout insert |
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| Publication Number | Publication Date |
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| CN207301181U true CN207301181U (en) | 2018-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720917296.2U Active CN207301181U (en) | 2017-07-26 | 2017-07-26 | A kind of superconductor cavity vertical checkout insert |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107478913A (en) * | 2017-07-26 | 2017-12-15 | 中国科学院高能物理研究所 | A kind of superconductor cavity vertical checkout insert |
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2017
- 2017-07-26 CN CN201720917296.2U patent/CN207301181U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107478913A (en) * | 2017-07-26 | 2017-12-15 | 中国科学院高能物理研究所 | A kind of superconductor cavity vertical checkout insert |
| CN107478913B (en) * | 2017-07-26 | 2024-03-12 | 中国科学院高能物理研究所 | Superconducting cavity vertical test insert |
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