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BEPCII Cryogenic System Engineering DesignBEPCII Cryogenic System Engineering Design1

Cryogenic System Design

For BEPCII

2004-01-12

L.Wang

Institute of Cryogenics and Superconductivity Technology

Harbin Institute of Technology


ContentContent

Introduction

Progress of cryogenic system design

Flow Diagram

Layout of cryogenic system

Main Facilities & Design

Numerical Simulation

Three superconducting technologies and related hardware systems need to be

developed:

• A pair of superconducting interaction region (SCQ) quadrupole magnets

• A pair of superconducting radio frequency (SRF) cavities

• A superconducting detector (SSM) solenoid magnet

• A cryoplant with a capacity of 1kW/4.5K (2x500W/4.5K refrigerator system)

Cryogenic system Cryogenic system is a big challenge: is a big challenge:

•• to serve for 3 types of SC device

• to adopt 3 types of cooling modes

• total capacity: 1kW/4.5K

• 2x500W/4.5K refrigerators

• based on conceptual design


Introduction

Task of BEPCII cryogenic systemTask of BEPCII cryogenic system• Production of cooling power (refrigerators)• Distribution of cryogen (valve boxes, transfer lines)• Preparation of cryogen (dewars, subcoolers)• Cooling of components (SCQ & SSM magnets, SRF cavities) • Variability and flexibility of refrigeration to handle different modes of operation• Process control & monitoring• Helium recovery and storage as liquid or gas(gas collection headers, tanks,

pressure vessels, leak tightness, closed circuit)• Helium purification (filters, separators, absorbers,driers, gas analyzers)• Handling of safety aspects(safety concepts, material certification, safety rules,

technical exam., pressure • Accommodation to collider buildings and tunnels


Introduction (1)

Cooling scheme for BEPCII SC deviceCooling scheme for BEPCII SC device• The cooling principles used to cool SC magnets are mainly determined by the temperature range of operation, heat loads, helium flow conditions, allowed pressure drops, spatial arrangement of the cold components and so on.• Supercritical helium cooling for SCQ magnets

Because the severe constrain in the radial dimension of the SCQ cryostat, the annular channels for LHe cooling flows are narrow. In order to eliminate the possible vapor bubble in the helium flow around the coil winding, the magnets are to be cooled by supercritical helium, even though the large latent heat cooling from the two-phase helium is attractive to reduce the budget of

cooling capacity of the cryoplant.

• Forced two-phase helium cooling for SSM magnet • Liquid helium cooling for SRF cavities


Introduction (2)

CryoplantCryoplant scheme scheme one 500W/4.5K refrigerator system for SCQ&SSMone 500W/4.5K refrigerator system for SRF cavitiesShared with the common recovery, purification and storage system.


Thermal Loads in SSM SolenoidThermal Loads in SSM Solenoid

Support Function Material Load per member Quan. Heat load

at 4.5 K

Type AAxial

Push rod GFRP* 2.0 W 8 16 W

Tie rod S. S. or Ti alloy 0.5 W 8 4 W

Radial tie rod S. S. or Ti alloy 2.5 W 4 10 W

Type BTriangle plate GFRP 0.25 W 20 5 W

Skew rod S.S. and GFRP 3 8 24 W

Cryo-components Thermal loads @ 4.4K

Magnet cryostats (2) 28 W

Service cryostats (2) 20 W

Control dewar with electrical heater (1) 25 W

Transfer line to service cryostat (2x2.0m) 2 W

Transfer line to control dewar(~23m) 10 W

Joule heating at SC cable joints 2 W

Current leads flow (operation) 0.12 g/s

Current leads load (no power) 10 W

Contingency 25 W

Total 122 W + 0.12 g/sThermal Loads in SCQ MagnetsThermal Loads in SCQ Magnets


Superconducting Interaction Region (SCQ) Superconducting Interaction Region (SCQ) QuadrupoleQuadrupole MagnetsMagnets

Coil winding layoutCoil winding layout

BNL engineering designBNL engineering design


Superconducting Detector Solenoid Magnet (SSM)Superconducting Detector Solenoid Magnet (SSM)

Overall view & cross sectionOverall view & cross section


500 MHz SC RF System500 MHz SC RF System

Conceptual designConceptual design

Completed: Completed:

RFP of 2x500W refrigeratorsRFP of 2x500W refrigerators’’ biddingbidding

Design of various gas storage tanksDesign of various gas storage tanks

Specifications of LN2 tanks and some related utilitiesSpecifications of LN2 tanks and some related utilities

Specifications of instrument air system & coolingSpecifications of instrument air system & cooling--water system water system

Designs of main facilities including SCQ/SRF/1000L Designs of main facilities including SCQ/SRF/1000L dewardewar valve boxes and current valve boxes and current leads for SCQleads for SCQ

Design of Design of subcoolersubcooler

Optimization design of current leads for SCQOptimization design of current leads for SCQ

Numerical simulation of heat load & cooling for SCQ magnets by FNumerical simulation of heat load & cooling for SCQ magnets by Fluentluent

Numerical calculation of thermal parameters for SCQ&SSM and SRF Numerical calculation of thermal parameters for SCQ&SSM and SRF cooling systemcooling system

Layout of cryogenic system (cryogenic hall, first & second IR haLayout of cryogenic system (cryogenic hall, first & second IR halls) lls)

Layout of control systemLayout of control system


Progress of Engineering Design 20022002--01 to 0601 to 06 Completed conceptual design of BEPCII cryogenic systemCompleted conceptual design of BEPCII cryogenic system

20032003--0202--2424 Contract of engineering design Contract of engineering design


Progress of Engineering Design (continued)

Updating:Updating:

Based on the meeting with IHEP at the end of December, 2003, theBased on the meeting with IHEP at the end of December, 2003, the followings are to be followings are to be

updated or reupdated or re--design to meet the requirement of IHEP for the design to meet the requirement of IHEP for the ““isolated vacuumisolated vacuum””

respectively in the first IR and the second IR. respectively in the first IR and the second IR.

Detailed P&ID design for BEPCII cryogenic systemDetailed P&ID design for BEPCII cryogenic system

Layout of cryogenic system (first & second IR halls) Layout of cryogenic system (first & second IR halls)

Numerical calculation of thermal parameters for SCQ&SSM and SRF Numerical calculation of thermal parameters for SCQ&SSM and SRF cooling systemcooling system

Designs of main facilities including SCQ/SRF/1000L Designs of main facilities including SCQ/SRF/1000L dewardewar valve boxes and current valve boxes and current leads for SCQleads for SCQ

Design of SSM valve box and current leads for SSMDesign of SSM valve box and current leads for SSM

Design of cryogenic transfer lines Design of cryogenic transfer lines

Detector Solenoid Magnet

IR Magnet - A

Subcooler Dewar

Refrigerator Cold Box - IR/D

Comp.Skit

IR Magnet - BLN2 Purifier

Conceptual designConceptual design


BEPCII Flow Diagram

Cryogenic System Flow Diagram

RefrigeratorCold Box-RF

CopmressorSkit-RF

LN2 Purifier

LHe Dewar - RF

SRF Cavity - A

LP GHe Storage

HP GHe Storage

BEPCII e-p Collider Superconducting RF Cavity, IR Magnets & Detector Solenoid March 30, 2002

SRF Cavity - B

LN2 Tank

N2 Circulating Compressor

LN2 Circulating Heat Exchanger


BEPCII Flow Diagram(1)

V0000DN50

DN50V0000

DN200V0000

V0000DN100 DN100

V0000

DN50V0000

V0000DN50

V0000DN25

V0000DN25

DN25V0000

V0000DN100

DN50V0000

DN25V0000

30M3

5M3

130M3

1.5MPa

130M3

1.5MPa

130M30.11MPaSRF Cavity - SRF Cavity - SRF Cavity - B

Lhe come from refrigerator

Low he goto refrigerator

V0000DN50

DN50V0000

DN200V0000

V0000DN100 DN100

V0000

DN50V0000

V0000DN50

V0000DN25

V0000DN25

DN25V0000

V0000DN100

DN50V0000

DN25V0000

30M3

5M3

130M31.5MPa

130M31.5MPa

130M30.11MPa

Engineering designEngineering design

2x500W/4.5K Refrigerator systems2x500W/4.5K Refrigerator systems

Internal purifierInternal purifier

Recovery compressorRecovery compressor

GHeGHe tankstanks



图形符号名称图形符号气闭式

V0000DN50

DN50V0000

DN200V0000

V0000DN100 DN100

V0000

DN50V0000

V0000DN50

V0000DN25

V0000DN25

DN25V0000

V0000DN100

DN50V0000

DN25V0000

30M3

5M3

130M31.5MPa

130M31.5MPa

130M30.11MPa

Flow diagram for SCQ & SSM magnetsFlow diagram for SCQ & SSM magnets

SCQ: Supercritical flow coolingSCQ: Supercritical flow cooling

Cold boxCold box--SubcoolerSubcooler in 1000L in 1000L dewardewar--MTRLMTRL--SCQ VBSCQ VB--SCQs&PLsSCQs&PLs--JT valveJT valve--1000L 1000L dewardewar--Cold boxCold box

SSM: forced twoSSM: forced two--phase flow coolingphase flow cooling

Cold boxCold box--SubcoolerSubcooler in 1000L in 1000L dewardewar--JT valveJT valve--MTRLMTRL--SSM VBSSM VB--SSM&PLSSM&PL--1000L 1000L dewardewar--Cold boxCold box





Flow diagram for SRF cavitiesFlow diagram for SRF cavities

SRF: SRF: LHeLHe bathbath--coolingcooling

Cold boxCold box--2000L dewar2000L dewar--MTRLMTRL--SRF(SRF(--1000L 1000L dewardewar))--Cold boxCold box

SRF Cavity - SRF Cavity - SRF Cavity - B

Lhe come from refrigerator

Low he goto refrigerator

Cryogenic hallCryogenic hall

First IR hall (SCQ&SSM)First IR hall (SCQ&SSM)

Second IR hall (SRF)Second IR hall (SRF)

Tank FarmTank Farm

（03.12.25）

经讨论，作出以下更改：

1.二厅液氮罐位置更改；

2.四只氦储罐向西移1m，以防挖到地下电缆；

3.整个低温厅向南移动1m。液氮储罐

液氮器化器

柴油发电机

一楼大厅

水冷却塔

楼顶平台

水泵

VFD2 VFD1仪表空气压缩机系统

不纯氦气回收机压缩机回收压缩机

壁式轴流风机

A向旋转

四只高、低压氦气罐重叠布置

压力控制盘

除油系统

制冷机压缩机

制冷机压缩机 A向

压力控制盘

液氮储罐

ZG-10/8型储气罐

ZG-30/0.9型氦气储罐

ZG-5/66型储气罐

液氮器化器


Layout of BEPCII Cryogenic System

制冷机压缩机

制冷机压缩机

除油系统

回收压缩机不纯氦气回收机压缩机

水冷却塔

楼顶平台

柴油发电机

一楼大厅

仪表空气压缩机系统

水泵

压力控制盘

压力控制盘

ZG-5/66型储气罐

ZG-30/0.9型氦气储罐

ZG-10/8型储气罐

液氮储罐

液氮气化器

四只高、低压氦气罐重叠布置

A向

A向旋转

壁式轴流风机

FacilitiesFacilities

He compressor systems, He compressor systems, VFDsVFDs, air , air compressor, air drier, ORS(2), compressor, air drier, ORS(2), coolingcooling--water system, spare power water system, spare power engine, gas tank farm, LN2 tanks, engine, gas tank farm, LN2 tanks, control systemcontrol system


Cryogenic Hall & Facilities


Cryogenic Hall & Facilities (1)

FacilitiesFacilities

SCQ & SSM SCQ & SSM magnets, chimney magnets, chimney valve boxes, cold valve boxes, cold box, 1000L box, 1000L dewardewar & & valve box, He & N2 valve box, He & N2 heater, cryogenic heater, cryogenic transfer lines, transfer lines, control systemcontrol system


First IR Hall & Facilities


First IR Hall & Facilities (1)

• Due to the enlarged size of cold box, the position of the cold box was changed.

• The transfer lines from compressor to cold box is about to be re-positioned.

• The interfaces among the cold box, the multiple cryogenic transfer lines, and the 1000L dewar valve box are updating.

Cold Box RoomCold Box Room



日期

底图总号

签字

借（通）用件登记

旧底图总号

审核

工艺

校对

审定

批准

设计

标记分区处数

标准化

更改文件号

哈尔滨工业大学

一厅制冷机房布置图比例重量阶段标记

共张

1:20

第张

年、月、日签名

杜瓦阀箱冷箱控制柜 UPS电源

控制柜

氦加热器

氮加热器




SSM: offSSM: off--lineline

SSM: onSSM: on--lineline

Two sets of removable transfer lines for SSM

Removable transfer lines for SCQs



SCQ valve box in the eastSCQ valve box in the east


Second IR Hall & Facilities

Facilities: 3 SRF cavities, cold box, purifier, 2000L Facilities: 3 SRF cavities, cold box, purifier, 2000L dewardewar, valve box, , valve box, control system, He & N2 heater, cryogenic transfer linescontrol system, He & N2 heater, cryogenic transfer lines


Second IR Hall & Facilities (1)

• Due to the enlarged size of cold box, the position of the cold box and valve box were changed.

• The interfaces among the cold box, 2000L dewar, the multiple cryogenic transfer lines, and the 1000L dewar valve box are updating.

SRF VALVE-BOX

2000L DEWER

COLDBOXPURIFYER

校对

第张批准

审定

工艺

审核1

共张

1:40

标记年、月、日签名更改文件号分区处数

标准化设计阶段标记重量


比例

二厅制冷机房布置图

日期

旧底图总号

签字

底图总号

借（通）用件登记



Second IR Hall & Facilities (2)

Cryogenic transfer lineCryogenic transfer line

Under design in ICST/HIT since March, 2003 :Under design in ICST/HIT since March, 2003 :•• SCQ chimney valve boxesSCQ chimney valve boxes•• Current leads for SCQ magnetsCurrent leads for SCQ magnets•• 1000L 1000L dewardewar control valve box for SCQ & SSM magnetscontrol valve box for SCQ & SSM magnets•• Control valve box for SRF cavitiesControl valve box for SRF cavities•• SSM chimney valve boxSSM chimney valve box•• Current leads for SSM magnetCurrent leads for SSM magnet•• Layout of Cryogenic hall & arrangement plan for main facilitieLayout of Cryogenic hall & arrangement plan for main facilitiess•• Layout of First IR hall & arrangement plan for main facilitiesLayout of First IR hall & arrangement plan for main facilities•• Layout of Second IR hall & arrangement plan for main facilitieLayout of Second IR hall & arrangement plan for main facilitiess•• GHeGHe tankstanks•• Air tankAir tank•• LN2 tankLN2 tank•• Cryogenic transfer linesCryogenic transfer lines•• Control systemControl systemThe current design of the above items is shown as follows, and mThe current design of the above items is shown as follows, and most of them are ost of them are still improving and updating.still improving and updating.

29BEPCII Cryogenic System Engineering DesignBEPCII Cryogenic System Engineering Design

Main Facilities & Design


SCQ Chimney Valve Box

底图总号

签字

旧底图总号

日期

标准化

2

1

3

4

5

6

处数分区

PART NUMBER

代号

审定

批准

校对

审核

工艺

标记

设计

NO

备注重量WT

比例

第张

阶段标记

QTDESCRIPTION

共张

重量

单件名称材料总计

签名

a8

17

18

22

21

20

19

24

23

9

10

11

12

13

14

15

16

7

8

25

c

d1,d2

b

e

h

f

g

单位

MPa

m3

Unit

项目序号

Volume

设计压力

Medium

介质

容积

类别

4

3

1

2

Design pressure

Class of vessel

No Item

Technical data技术特性表

数据

Data

Use

用途

℃

年

MPa

Year

MPa

接管表

筒体

Shell

Head

封头

mm腐蚀裕量

工作压力

5

9

8

7

6

设计使用寿命

Design service life

Working pressure

焊接接头系数

10

11

安全阀开启压力

Opening pressure of safty valve

主要受压元件材料牌号

Material of main pressure part

Welding joint efficiency

Corrosion allowance

Design temperature

Nozzle list

连接尺寸或标准

No

序号

a3

a2

a1

公称尺寸

Nominal size

(mm)

a7

a4

a5

a6

(Mpa)

公称压力连接面型式

设计温度

Basic parameters

Type：Cylindrical

Size：800mm OD in diameter

1040mm in height

Weight：123kg or so(excluding leads)

Feature：

Current leads are directly assembled inside the VB. The VB chamber is disassembled from the flange at its lower part for easy maintenance. The SC cables and transfer lines are disconnected inside the bottom of the VB.

Automatic valves：5 (N2-2, He-3)

Relief valves：2

Vacuum Relief valve: 1

Bayonet: 1 Multiple line: 1

Pressure transducers: 4


SCQ Chimney Valve Box (1)


SCQ Chimney Valve Box (2)

• The design of the top interface is updating due to the isolated vacuum requirement.

Different viewsDifferent views


SCQ Current leads Design

Nominal operation current & design current for SCQ magnetsNominal operation current & design current for SCQ magnets

1507516007575630630Idesign (A)

1306514006565550550Iop (A)

AS3（1）AS2（1）AS1（2）SKQ（2）VDC（2）SCB（2）SCQ（2）

Idesign = 1.15xIop

12 current leads12 current leads

4 types of current4 types of current

300K to 4.5K along the current leads300K to 4.5K along the current leads


SCQ Current leads Design(1)

Parameters

Design

Current A 1600 630 150 75

Material TP1-TP2

Cooling method Forced cold GHe

Structure Multiple concentric tubes

Tube quantity 4 3 2 1

Lead quantity 2 4 1 5

Effective length: 450mm

Size inside VB： Φ310*1200mm

Size Outside VB： Φ362*500mm

• Because the cooling method was changed from subcooled liquid helium cooling to supercritical helium cooling, the bottom vessel is being modified.

• Because of the radiation wall on top of the SCQ valve box, the top interface of the lead assembly is being modified.

• The design of 1600A leads is updating.


SCQ Current leads Design(2)

签字

日期

底图总号

旧底图总号

设计标准化

批准

审定

工艺

审核

校对

标记处数分区签名

阶段标记重量比例

第张共张

QTPART NUMBER

代号

NO

1

2

DESCRIPTION

名称

12

15

13

14

16

17

19

18

3

4

8

5

7

6

9

10

11

单件材料总计

重量WT

备注

电流

位号


SCQ Current leads Design (3)




Numerical Simulation: optimization

Current A 1600 630 150 75

RRR 10

Heat leak 1.63 0.64 0.15 0.076

（W/each）

Total heat leak 3.26 2.56 0.15 0.38

(W)

Mass flow rate 8 3.15 0.75 0.375

(10-5kg/s)

Cross-section 235.8 92.8 22.1 11.66

Area（mm2)

Г=IL/S 5.7 5.7 5.7 5.7

(106A/m)

Fig1.Temperature contour of copper block of 1500A power leads when I=1500A, m=7.5*10-5kg/s. m-in = 2.04*10-5kg/s, m-out =5.62*10-5kg/s.



Fig2.Temperature profile of power lead, I=1500A and I=2000A.

Fig3. Unsteady temperature profile of 1500A power lead when helium gas is interrupted. t=0s and t=40s is presented, assuming heat leak at cold end is zero.



Fig4 displacement ΔX of 1500A power lead as temperature is cooled down.

L=0.56m

Fig5 displacement ΔY of 1500A power lead as temperature is cooled down. L=0.56m



Fig6 Axial stress of 800A power lead as temperature is cooled down. L=0.56m. σmax= 0.136*10

8 Pa

Fig7 Radial Stress of 800A power lead as temperature is cooled down. L=0.56m σmax= 0.493*10

7 Pa


SCQ/SSM 1000L Dewar Valve Box

代号

PART NUMBER

旧底图总号

签字

底图总号

日期

×

7

6

5

分区处数

设计

标记

校对

3

1

2

NO

4

53

52

54

44

45

43

50

47

48

49

46

51

工艺

审核

42

接管

31

30

29

32

23

22

21

28

27

26

25

24

15

14

13

20

19

18

17

16

11

10

9

8

58

57

56

55

12

N2 to heater

80K He from CB

LHe from CB

LN2 from tank

He to Heater

He to CB

80K returu to CB

b2

b3

b4

a8

b1

f

b5

b6

b7

b10

DN15WEKA930219-7

DN15WEKA930219-8

低温真空

接管型号接管位置接管用途

3/8″CONTROLS5159B-3MP

39

38

j

k

g

41

40

36

35

34

33

37

DN15WEKA911119

DN15WEKA911001

DN10WEKA911119

连接面型式

Nozzle list

连接尺寸或标准公称尺寸序号公称压力

接管表

DN10WEKA29803

阀门型号阀门用途阀门位号

Nominal sizeNo

a5

a6

a7

DN10WEKA29803

(mm) (Mpa)

重量比例

签名

阶段标记标准化

审定

WT

总计备注

QT

材料名称

DESCRIPTION 重量

单件

第张共张批准

Design pressure

工作压力6 MPa

年Year

焊接接头系数

Working pressure

Design service life

设计使用寿命

腐蚀裕量

7

8

9


℃Design temperature

设计温度5

UseNominal sizeNo

用途连接面型式连接尺寸或标准公称压力

(Mpa)(mm)

公称尺寸序号

Nozzle list接管表


封头

Head

Shell

筒体

11Material of main pressure part

主要受压元件材料牌号

Opening pressure of safty valve MPa10

mmCorrosion allowance

用途

技术特性表Technical data

单位序号项目数据

Use

m3

MPa

类别

容积

Class of vessel

介质

Medium

设计压力

Volume2

1

3

4

Unit DataItemNo


SCQ/SSM 1000L Dewar Valve Box (1)

The updated valve box:The updated valve box:

To control the distribution of To control the distribution of cryogenic fluid from or to the cryogenic fluid from or to the cold box and 2xSCQ & SSM cold box and 2xSCQ & SSM magnets during normal operation, magnets during normal operation, coolcool--down and warmdown and warm--up. up.

8 bayonets are used.8 bayonets are used.

Total Height: ~3.6mTotal Height: ~3.6m

• The interface design of the top plate is updating due to the isolated vacuum requirement.

Basic parameters

Type: rectangular

Size:

1000mm(L)x1000mm(W)x800mm(H)

Weight：

~2200kg（excluding dewar）

Automatic valves：3

Manual valves：14

Relief valves：10

Vacuum relief valve: 1


Bayonets: 8 (for SCQ & SSM)

Feature

The bottom plate is located on the 1000L dewar, and the other 5 side plates are easy to disassemble.





Instrument air & pressure transducersInstrument air & pressure transducers



SRF Valve Box

heh-4

b4

b3

nh-1

nhaf-9

b5

b6

hej-3

9

h2

nj-4

hej-6

9

h1

13af

hehaf-10

10

h12a

f

b7

heh-7

7

hej-5

heh-3

a1

审定

批准

签名分区

标准化

校对

工艺

审核

设计

标记处数

共张第张


heh-9

hej-1

7

hej-

2

3

nh-25

b1b2

h3

h4

6

nj-3

h3

nj-3

4

h5

nh-2

b14

h9

低温与超导技术研究所


12af

h5

h6

heh-8

h13

af

b11

b13

b12

h8

h10af

h11af

h7

11

heh-5

heh-6

heh-2

8

hej-

4

heh-6

nh-6

nj-5

nj-6

heh-1

nj-2 nj-1

nh-4

nh-

3

a4a3

a2

nh-

5

nhaf-8

a6

a7

a8

a5

b8nh-2

njaf-7

hejaf-7

b10

b9

nhaf-7

气动截止阀 CV电磁阀 MV

P04F3-LC

手动截止阀 HV安全阀 SV

气动调节阀 PV

Local P&ID Local P&ID


SRF Valve Box(1)

审定

批准

标准化

校对

审核

工艺

标记

设计

处数分区

PART NUMBER

代号

NO

单件

重量

阶段标记

共张

签名

DESCRIPTION

名称

比例

第张

重量

材料

QT

备注总计

WT

底图总号

签字

日期

旧底图总号

低温真空

接管型号接管位置阀门型号阀门位号阀门位号阀门型号

接管位置低温真空

接管型号


SRF Valve Box(2)

审定

批准

标准化

校对

审核

工艺

标记

设计

处数分区

PART NUMBER

代号

NO

单件

重量

阶段标记

共 2 张

签名

DESCRIPTION

名称

比例

第 2 张

重量

材料

QT

备注总计

WT

底图总号

签字

日期

旧底图总号

AA

5

E E

I I

J JK K

13

C11

L L

C12

接管位置低温真空

接管型号

阀门位号阀门型号

ConnectNominal

Usesurface formstandardpressure

用途

Nozzle list

Connect

mm Mpa

Nominal型式

连接面连接尺寸或标准

接管表

公称尺寸序号公称压力

技术特性表Technical data

拆去右封头后视图

D2

用途

用途序号工作介质

管道接管表

接管尺寸

Mpa

Nozzle list

连接面

Use

设计压力工作压力

Mpa

工作温度

mmC°


SRF Valve Box(4)

日期

旧底图总号

签字

底图总号

总计

重量

校对审定

工艺

审核

批准共张第张

DESCRIPTION

签名处数

设计

标记

NO

1

分区

标准化

PART NUMBER

代号

2

QT

阶段标记

名称

重量比例

材料

WT

单件备注

c2 c1

1

2

3

Tooling Tooling


SRF Valve Box(5)

• The design of the interface for transfer lines is updating due to the isolated vacuum requirement. The size of the valve box need to be enlarged.

Basic parameters

Size: 1602mm(OD)x2184mm(VB L)

Total L: 3858mm

Weight：

~2120kg（excluding dewar）

Automatic valves：12

Manual valves：12

Relief valves：11

Vacuum relief valve: 1


Bayonets: 12

Updated 3D drawingUpdated 3D drawing


SRF Valve Box(6)


SRF Valve Box(7)


SRF Valve Box(8)

Instrument air & pressure transducersInstrument air & pressure transducers


Gas Tanks (1)

榫槽面

7.2

22.6

First class

0.8/-0.1

Helium

0.73

(0.8)

16MnR

Connect型式

连接面

榫槽面

总计

16MnR

低温与超导技术研究所

ZG-130/7.3型储罐TYPE ZG-130/7.3GAS STORAGE TANK

P04Z1


12

接管与筒体焊道图主焊道图

采用自动焊

日期

签字

底图总号

旧底图总号

封头与筒体合拢焊

焊道图采用手工焊

和自动焊

c

a

d

A 向

14

A

c

13

B B

a

P04Z1

1 2 3

技术要求

1、本设备按GB150-1998《钢制压力容器》和JB4731-2000《钢制卧式容器》进行制造、试验和

验收，并接受国家质量技术监督局颁发《压力容器安全技术监察规程》的监督。

2、焊接采用自动焊，焊丝牌号：H10MnSi.电弧焊，焊条型号：E5015、E4315、E4303。

3、焊接接头形式见焊道图，角焊缝的焊角尺寸按较薄板的厚度；法兰的焊接按相应法兰标准

中的规定。

4、容器上的A类和B类焊缝应进行无损探伤检查，探伤长度为100％。射线探伤应符合JB4730-94

《压力容器无损检测》规定中的Ⅱ级为合格。

5、设备制造完毕后，以1.0MPa进行液压试验，合格后再以0.8MPa的干燥无油的压缩气体进行气密

性试验，合格后将容器彻底吹干，去除其他杂质，试验要求详见《容规》第98条和第102条。

6、涂漆要求:容器内部涂C53-1红丹醇酸防锈漆，厚度为60μm，容器外部涂C53-1红丹醇酸防锈

漆，打底30μm,再涂C04-42银灰色醇酸磁漆，盖面30μm。在筒体中间涂长1000mm宽400mm的

白色带，并在带上书写100mm大小的深绿色字：氦气工作压力0.73MPa。

7、管口及支座方位见A向视图。

8、主要受压元件需提供材质证明。

9、涂漆后，内部清理干净，并进行氮封,氮封压力为0.2MPa。

TECHNICAL SPECIFICATION1、Ｔhe process of manufacture ,test,check and accept about this facility must accord

with the standard of GB150-1998《Steel pressure vessels》and JB4731-2000《Stell

horizontal vessel》and accept the supervised of the regulation 《Pressure vessel

safety and technic supervised regulations》.

2、The brand of welding wire and electrode:H10MnSi and E5015,E4315，E4303are adopted

in automatic and handwork welding .

3、The type of weld joint see weld bead drawing .The triangle weldsize depends on the

size of the thin plate; welding flange accordto the corresponding standard.

4、The type of A and B welding should be made 100% local radial non-destructive exami-

nation ,The quality should be conform with JB4730-94《Nondestructive testing of

pressure vessels 》Ⅱgrade.

5、After the facility installed ,must be made the hydraulic test at 1.0MPa,and airtight

test at 0.8MPa,and then blew dry and wiped off impurities in the vessel,accordingto

《pressure safy and techic supervised regulations》No98 iten and No102 iten.

6、It need to paint C53-1 red lead alkyd preventing rust paint in the vessel ,thick-

ness: 60μm.After painting C53-1 red leak alkyd preventing rust paint,thickness：30μm,

in outside vessel,it must be painted C04-42 silver gray alkyd magnetism paint,thickness：

30μm.Paintted the white cincture of 1000*400mm in the middle of the jar,write bottle

green word of"He work press 0.73MPa"on the cincture.

7、The direction of nozzle and support see view A.

8、Main pressure retaining parts must be provided the proving of material quality.

9、After paintted,cleanning the inside of the jar ,N2 seal up,charge press is 0.2MPa.

外

内

接管与封头、补强

圈焊道图

B-B

11

C-C

3.616MnR2StoolpateP04Z1-33

校对

审核

工艺

设计

标记

1

2

标准化

审定

批准

分区处数签名

代号

P04Z1-2

P04Z1-1Left head

名称

左封头

Ring吊耳

总图

1：20

第张共张


Q235-A.F

16MnR

材料

2

1

单件

WT重量

11.3

12

5

4

7

6

10

9

8

11

14

13

15

962鞍座 BⅠ3400-FJB/T4712-92 1

鞍座 BⅠ3400-S

螺栓 M24*80

Reinforcing

Bicycle saddle

Bicycle saddle

P04Z1-5

P04Z1.4

P04Z1-6

HG21517-95

右封头Right head

Shell

垫板

筒体

Manway

补强圈

JB/T4712-92

P04Z1.7

Screw blot

螺母 M24Screw nut

铭牌组件

部件

16MnR

部件

16MnR

Assembly

Assembly

pad 1

1

1

1

28.2

168

部件Assembly

8.8

1

4

4

1

962

8

0.47

Inlet and outlet Pipe

N2 inlet Pipe

P04Z1.9

P04Z1.8

P04Z1.10

进出口接管

排污管Dewatering

充氮管

Assembly部件

部件

部件Assembly

Assembly1

1

1

15

C

10

C

9 8

封头11 Material of main

DN450

pressure part

DN200

公称尺寸

Nominal

DN32d

b

c DN50

6

7

a

No size

序号

法兰 HG20592PN1.6

PN1.6

PN1.6 HG21517-95

Connect

接管表Nozzle list

法兰 HG20592

standard

Nominal

PN1.6

pressure

公称压力mm

Head

腐蚀裕量Corrosion allowance


设计压力

设计温度

工作压力Working pressure

Design temperature

设计使用寿命


Design service life

焊接接头系数

Design pressure

Medium

Volume

主要受压元件材料牌号b

9

10

8

7

4

6

5

2

3

mm

筒体

Shell

MPa

年Year

容积

介质

MPa

MPa

°C

m

4d

5

Class of vessel

序号

1

No Item

Technical data技术特性表

项目

类别

单位Unit

备注

人孔

充氮口

排污口

Use

用途

1.5

1

15

20

130

氦气

数据

一 130m^3 130m^3 GHeGHe tanktank


GHe Tank： ZG-130/7.3(top) ZG-130/14.5（bottom）


Gas Tanks

1122

33

1、ZG-5/60(GHe)

2、ZG-30/0.8（GHe）

3、ZG-10/7.3（Air）


Numerical Simulation

Simulation of heat load and cooling for SCQ magnetsSimulation of heat load and cooling for SCQ magnets


Conduction of outer shell of cryostat, supports, LN2 shield and outer wall of LHe flow channel is simulatedated by Fluent 6.0

Simulation model: 8 SS cooling tubes Simulation model: 8 SS cooling tubes for 80K shieldfor 80K shield


Temperature contour

Radial supportRadial support


Temperature contour (continued)

Outer wall of Vacuum chamberOuter wall of Vacuum chamber

Outer 80K shieldOuter 80K shield


Temperature contour (continued)

Axial supportAxial support

Inner 80K shieldInner 80K shield


Heat load summaryHeat conduction through radial support: 10.4WRadiation load: 2.6WHeat conduction through axial support: 1.45W @ constant K= 0.22w/m-K

3.302W @ K is a function of temperature

Supercritical helium cooling

Pressure: 2.7bar

Temperature: 4.6K

Mass flow rate: 9.23g/s, 14.74g/s

Pressure drop: 0.2Pa/m~0.3Pa/m; 2.2Pa/m~4.7Pa/m


Temperature contour

Outer He channel at 9.23g/sOuter He channel at 9.23g/s

Outer He channel at 14.74g/sOuter He channel at 14.74g/s


Temperature distribution

inner He channel at 9.23g/sinner He channel at 9.23g/s

inner He channel at 14.47g/sinner He channel at 14.47g/s


Subcooled liquid helium cooling

Pressure: 1.4bar

Temperature: 4.46K

Mass flow rate: 12g/s

Pressure drop: 3.7Pa/m

Outer He channelOuter He channel

Summary

Supercritical helium cooling is preferred for SCQ magnets.

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