CN103702505A - Niobium and titanium flange device with superconducting cavity suitable for two types of washers - Google Patents
Niobium and titanium flange device with superconducting cavity suitable for two types of washers Download PDFInfo
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- CN103702505A CN103702505A CN201310685505.1A CN201310685505A CN103702505A CN 103702505 A CN103702505 A CN 103702505A CN 201310685505 A CN201310685505 A CN 201310685505A CN 103702505 A CN103702505 A CN 103702505A
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Abstract
The invention belongs to the field of a superconducting acceleration cavity of an accelerator, and provides a niobium and titanium flange device with a superconducting cavity suitable for two types of washers. The device comprises an upper flange and a lower flange, wherein the lower flange is connected with a niobium pipe of a niobium cavity. The device is characterized in that the sealing surface of the upper flange is provided with a right-angled notch, the sealing surface of the lower flange is provided with a boss, a cavity which is formed by the right-angled notch, the sealing surface of the lower flange and the side surface of the boss is a sealing cavity, and the interior of the cavity is provided with a sealing ring. The device has the advantages that the device is suitable for both of the magnalium alloy washer and the indium washer; the vacuum sealing of the cavity is ensured, the usage amount of indium sealing flanges is reduced, the labor and time of installing and detaching the washers are saved, and meanwhile, the pollution to the cavity by the indium is effectively avoided.
Description
Technical field
Cavity field is accelerated in the superconduction that the invention belongs to accelerator.
Background technology
On Niobium Superconducting cavity, have a plurality of hatch frames, these openings are for guaranteeing vacuum or being connected and all needing flange arrangement with other equipment.For make flange can with the niobium pipe fitting welding of Niobium Superconducting cavity, the flange material of the superconduction cavity niobium titanium material that can directly use electron beam welding with niobium.And the hardness of niobium titanium itself is not high, also low materials processing of hardness ratio niobium titanium for flange packing ring multiselect.At present, the material of packing ring can be divided into two classes, and magnadure and indium silk also have two kinds of different niobium titanium flange arrangements corresponding with it simultaneously.Wherein, the niobium titanium flange arrangement that is applicable to magnadure circle mostly is low groove structure, and groove is used for fixedly magnadure circle; The flange arrangement that is applicable to indium silk is a large plane normally, the removing of the indium silk after easy to use.These two kinds of flange arrangements cannot be intercoursed use.
Using the shortcoming of the niobium titanium flange arrangement maximum of magnadure packing ring is at present that vacuum seal success rate is low, can not guarantee the requirement that vacuum degree is high.
The sealing surface of flange requires very smooth, could keep vacuum with magnadure packing ring close contact.Superconduction cavity is a lot of other surface treatment means of meeting process before test, and the very soft sealing surface that is easy to scratch flange of niobium titanium material.Gently after scratching cause superconduction cavity vacuum degree not high, scratch serious directly cannot sealed vacuum.
When being dismounting, the niobium titanium flange greatest drawback of using indium silk to seal clears up indium silk workload huge.
Indium silk is very soft, similar with chewing gum.By the indium silk flattening after using, be difficult to remove from Flange Plane clean.Because flange is planar structure, cause cavity to use very easily indium silk is brought into superconduction cavity when removing used indium silk in.
Summary of the invention
The object of the invention is to, for avoiding the deficiencies in the prior art, provide a kind of superconductor cavity niobium titanium flange apparatus that is applicable to two kinds of packing rings.To reach, be both applicable to magnadure packing ring, be also applicable to the object of indium silk packing ring.
For achieving the above object, the technical scheme that the present invention takes is: a kind of superconductor cavity niobium titanium flange apparatus that is applicable to two kinds of packing rings, include the lower flange that upper flange is connected with niobium pipe fitting on niobium cavity, its main feature is: on the sealing surface of upper flange, be provided with right-angle notch, on the sealing surface of lower flange, be provided with boss, the chamber that right-angle notch and lower flange sealing surface and boss side surfaces form is annular seal space, is provided with sealing ring in it.
The described superconductor cavity niobium titanium flange apparatus that is applicable to two kinds of packing rings, is characterized in that: described sealing ring is magnadure seal washer or indium silk seal washer.
Flange arrangement in the present invention comprises two parts: the upper flange (stainless steel) of the lower flange together with niobium cavity welding (niobium titanium material), extruding magnadure packing ring or indium silk packing ring.Lower flange structure has a smooth sealing surface, and sealing surface periphery is bolt hole, and sealing surface is inner a boss.Boss structure is the core of whole invention.When being the niobium pipe electron beam welding guaranteeing on lower flange and niobium cavity, first effect of boss controls deflection; Second effect is the position of retaining washer when using magnadure packing ring, convenient installation (conventional structure is that outer ring is fixed, and is that inner ring is fixed in the present invention); The 3rd effect is slightly to fix while using indium silk packing ring, prevents that indium silk from falling into (boss is higher than indium silk packing ring holding plane) in niobium cavity when dismounting flange cleaning indium silk.
Beneficial effect of the present invention: both can use magnadure packing ring also can use indium silk packing ring.Can guarantee the vacuum seal of cavity, reduce again the usage quantity of indium silk sealing flange, save installation and removal manpower, time, also avoid indium silk to pollute cavity.
The present invention can significantly improve the efficiency that superconductor cavity body examination examination is installed, and saves manpower and time.Niobium Superconducting cavity has 4 above flanges conventionally, if conventional magnadure flange, any one flange sealing surface is subject to small injury, and whole cavity just cannot sealed vacuum, also just cannot test.Cavity only returns factory and again processes sealing surface.And if indium silk flange is testing the indium silk of processing on flange sealing surface.A skilled workman of flange face needs the time just can handle, and has nearly 10 above flanges on some cavity, need to expend a large amount of manpowers and time and remove the indium silk of using.
Accompanying drawing explanation:
Fig. 1 is the structural representation that the present invention uses magnadure packing ring flange;
Fig. 2 is the structural representation that the present invention uses indium silk packing ring flange.
1 upper flange in figure; 1-1 right-angle notch; 2 sealing rings; 3 lower flanges; 3-1 boss; Niobium pipe fitting on 4 niobium cavitys.
Embodiment
Below in conjunction with the preferred example shown in accompanying drawing, be described in further detail:
Embodiment 1: see Fig. 1, a kind of superconductor cavity niobium titanium flange apparatus that is applicable to magnadure seal washer, include the lower flange 3 that upper flange 1 is connected with niobium pipe fitting 4 on niobium cavity, on the sealing surface of upper flange 1, be provided with right-angle notch 1-1, on the sealing surface of lower flange 3, be provided with boss 3-1, the chamber that right-angle notch 1-1 and lower flange 3 sealing surfaces and boss 3-1 side form is annular seal space, is provided with sealing ring 2 in it.
Described sealing ring 2 is magnadure seal washer.
Embodiment 2: see Fig. 2, and a kind of superconductor cavity niobium titanium flange apparatus that is applicable to packing ring, described sealing ring 2 is indium silk seal washer.
All the other structures are identical with embodiment 1.
Flanges all in the present invention first with the assembling of magnadure packing ring flange, check with vacuum leak hunting meter, if any the flange that cannot seal, use indium silk washer sealing instead.Like this dismounting time only need process the face of a small amount of several indium silk sealing.The present invention compares complete in indium silk sealing saving processing time and manpower; Compare magnadure packing ring, frequently depot repair sealing surface.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (2)
1. a superconductor cavity niobium titanium flange apparatus that is applicable to two kinds of packing rings, include the lower flange that upper flange is connected with niobium pipe fitting with on niobium cavity, it is characterized in that: on the sealing surface of upper flange, be provided with right-angle notch, on the sealing surface of lower flange, be provided with boss, the chamber that right-angle notch and lower flange sealing surface and boss side surfaces form is annular seal space, is provided with sealing ring in it.
2. the superconductor cavity niobium titanium flange apparatus that is applicable to two kinds of packing rings as claimed in claim 1, is characterized in that: described sealing ring is magnadure seal washer or indium silk seal washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310685505.1A CN103702505A (en) | 2013-12-14 | 2013-12-14 | Niobium and titanium flange device with superconducting cavity suitable for two types of washers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310685505.1A CN103702505A (en) | 2013-12-14 | 2013-12-14 | Niobium and titanium flange device with superconducting cavity suitable for two types of washers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103702505A true CN103702505A (en) | 2014-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310685505.1A Pending CN103702505A (en) | 2013-12-14 | 2013-12-14 | Niobium and titanium flange device with superconducting cavity suitable for two types of washers |
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| CN (1) | CN103702505A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106132066A (en) * | 2016-07-29 | 2016-11-16 | 中国原子能科学研究院 | A kind of sealing structure of the cryostat of superconducting cyclotron |
| CN114100232A (en) * | 2021-12-18 | 2022-03-01 | 河南中烟工业有限责任公司 | Filter cartridge and stem silk reinforced filter cartridge device with position circle |
| CN114449725A (en) * | 2022-03-09 | 2022-05-06 | 中国科学院近代物理研究所 | Superconducting cavity vacuum sealing flange, radio frequency superconducting cavity and preparation method thereof |
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| US3959577A (en) * | 1974-06-10 | 1976-05-25 | Westinghouse Electric Corporation | Hermetic seals for insulating-casing structures |
| JPS63241899A (en) * | 1987-03-27 | 1988-10-07 | Mitsubishi Electric Corp | Superconducting high-frequency acceleration cavity |
| US4892321A (en) * | 1988-06-16 | 1990-01-09 | Colgate Samuel O | Ultra-high vacuum device gasket with means of insertion and removal |
| US5110162A (en) * | 1991-02-28 | 1992-05-05 | The Johnson Corporation | Anti-corrosive rotary joint |
| CN1174601A (en) * | 1994-11-25 | 1998-02-25 | 罗纳德·L·卡尔 | Joint assembly and backing mechanism therefor |
| CN1455134A (en) * | 2003-04-15 | 2003-11-12 | 西安理工大学 | Adadptive self-tightening sealing device |
| CN1619202A (en) * | 2004-12-03 | 2005-05-25 | 清华大学 | Sealing structure of aluminium alloy and stainless steel flange |
| JP2006236797A (en) * | 2005-02-25 | 2006-09-07 | Mitsubishi Heavy Ind Ltd | Superconducting acceleration cavity |
| CN201032030Y (en) * | 2007-06-11 | 2008-03-05 | 四川自强科技有限公司 | Flange patch component |
| CN101344206A (en) * | 2008-08-26 | 2009-01-14 | 王甲南 | Self-compensating fastening type large-diameter fast joint |
| CN101749505A (en) * | 2008-12-18 | 2010-06-23 | 王甲南 | Self-compensating direct quick-connection pipeline |
| CN202852257U (en) * | 2012-09-03 | 2013-04-03 | 安徽万瑞冷电科技有限公司 | Big-caliber detachable flange seal structure applied under low-temperature vacuum pressure environment |
| CN203335848U (en) * | 2013-06-08 | 2013-12-11 | 安徽万瑞冷电科技有限公司 | Deep-hypothermia ultrahigh-vacuum sealing structure |
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2013
- 2013-12-14 CN CN201310685505.1A patent/CN103702505A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3959577A (en) * | 1974-06-10 | 1976-05-25 | Westinghouse Electric Corporation | Hermetic seals for insulating-casing structures |
| JPS63241899A (en) * | 1987-03-27 | 1988-10-07 | Mitsubishi Electric Corp | Superconducting high-frequency acceleration cavity |
| US4892321A (en) * | 1988-06-16 | 1990-01-09 | Colgate Samuel O | Ultra-high vacuum device gasket with means of insertion and removal |
| US5110162A (en) * | 1991-02-28 | 1992-05-05 | The Johnson Corporation | Anti-corrosive rotary joint |
| CN1174601A (en) * | 1994-11-25 | 1998-02-25 | 罗纳德·L·卡尔 | Joint assembly and backing mechanism therefor |
| CN1455134A (en) * | 2003-04-15 | 2003-11-12 | 西安理工大学 | Adadptive self-tightening sealing device |
| CN1619202A (en) * | 2004-12-03 | 2005-05-25 | 清华大学 | Sealing structure of aluminium alloy and stainless steel flange |
| JP2006236797A (en) * | 2005-02-25 | 2006-09-07 | Mitsubishi Heavy Ind Ltd | Superconducting acceleration cavity |
| CN201032030Y (en) * | 2007-06-11 | 2008-03-05 | 四川自强科技有限公司 | Flange patch component |
| CN101344206A (en) * | 2008-08-26 | 2009-01-14 | 王甲南 | Self-compensating fastening type large-diameter fast joint |
| CN101749505A (en) * | 2008-12-18 | 2010-06-23 | 王甲南 | Self-compensating direct quick-connection pipeline |
| CN202852257U (en) * | 2012-09-03 | 2013-04-03 | 安徽万瑞冷电科技有限公司 | Big-caliber detachable flange seal structure applied under low-temperature vacuum pressure environment |
| CN203335848U (en) * | 2013-06-08 | 2013-12-11 | 安徽万瑞冷电科技有限公司 | Deep-hypothermia ultrahigh-vacuum sealing structure |
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| 侯顺利: "纸机烘缸漏汽的防治", 《中国造纸》, vol. 23, no. 1, 31 December 2004 (2004-12-31) * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106132066A (en) * | 2016-07-29 | 2016-11-16 | 中国原子能科学研究院 | A kind of sealing structure of the cryostat of superconducting cyclotron |
| CN106132066B (en) * | 2016-07-29 | 2018-07-06 | 中国原子能科学研究院 | A kind of sealing structure of the cryostat of superconducting cyclotron |
| CN114100232A (en) * | 2021-12-18 | 2022-03-01 | 河南中烟工业有限责任公司 | Filter cartridge and stem silk reinforced filter cartridge device with position circle |
| CN114449725A (en) * | 2022-03-09 | 2022-05-06 | 中国科学院近代物理研究所 | Superconducting cavity vacuum sealing flange, radio frequency superconducting cavity and preparation method thereof |
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Application publication date: 20140402 |